JP2012057932A - Heating medium supply apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating medium supply apparatus which is easy and simple in piping, requires no employment of a structure like a three-fluid heat exchanger of a complex structure as a heat exchanger, and minimizes the number of circulation pumps and heat exchangers, thereby having simplified configuration and reduced cost.SOLUTION: The heating medium supply apparatus includes a first water channel feeding water taken out of a hot water feed tank 2 by at least the pressure of potable water to a hot-water supply using part 1 via at least a burner heating type heat exchanger 6, and a second water channel for circulating water via the burner heating type heat exchanger 6, a load heat exchanger 7 and a heat pump heating type heat exchanger 5 by the pressure of the circulation pump. In the first water channel and second water channel, the water channel including the burner heating type heat exchanger 6 is configured at least in common, a burner combustion device N is switchable between a combustion state and a non-combustion state, and an operation control means 19 is included that freely switches a heat pump device 4 between an operation state and a non-operation state.

Description

  The present invention relates to a hot water supply tank for storing water to be supplied to a hot water use location, a circulation pump for circulating water in a water channel, a heat pump heating heat exchanger for heating water by a heat pump device, and heating water by a burner combustion device. The present invention relates to a heating medium supply device that includes a burner heating type heat exchanger that performs heating, and a load heat exchanger that consumes heat at least one of a heating load and a tracking load.

  Such a heating medium supply device heats water stored in a hot water supply tank with a heat pump heating type heat exchanger or a burner heating type heat exchanger to form hot water, and supplies it to a hot water supply use location. Circulating water is heated by a heat exchanger or a burner heating type heat exchanger to form hot water, and the circulating hot water is supplied to a load heat exchanger to be used for heat consumption in a heating load or a supplementary load.

  In a conventional heating medium supply device, hot water is supplied at the pressure of the first circulation pump, and a hot water supply channel for supplying water taken out from the hot water supply tank to the hot water use location via the first burner heating type heat exchanger. Water circulation path for returning water taken out from the tank to the hot water supply tank via the heat pump heating type heat exchanger, heat pump heating type heat exchanger, second burner heating type heat exchanger and load heat with the pressure of the second circulation pump And a load circulation water channel through which water circulates via an exchanger (see, for example, Patent Documents 1 and 2).

  In the apparatuses described in Patent Documents 1 and 2, the hot water supply channel can supply hot water stored in the hot water supply tank to the hot water supply use location by the pressure of clean water, and hot water is stored in the hot water supply tank. Even when there is no water, the water stored in the hot water supply tank is heated by the first burner heating type heat exchanger to be hot water, and the hot water can be supplied to the hot water supply use location. As described above, the hot water supply channel supplies hot water to the hot water use location using the water in the hot water tank by the pressure of the clean water. In the tank circulation channel, the water is circulated by the pressure of the first circulation pump. The load circulation channel also circulates water by the pressure of the second circulation pump.

  In the devices described in Patent Documents 1 and 2, each of the hot water supply channel, the tank circulation channel, and the load circulation channel is configured as a circuit that allows water to flow independently. A burner heating type heat exchanger is provided for each of the hot water supply channel and the load circulation channel, and a circulation pump is provided for each of the tank circulation channel and the load circulation channel. In the heat pump heating type heat exchanger, a three-fluid heat exchanger is used to exchange heat between the medium of the heat pump device and the water in the tank circulation channel, and to exchange heat between the medium of the heat pump device and the water in the load circulation channel. It is composed of.

In another conventional heating medium supply device, a hot water supply channel that supplies water taken from a hot water supply tank as it is to the hot water supply location with the pressure of clean water, and a heat pump heating heat exchanger and a load heat exchanger with the pressure of the circulation pump A first load circulation water channel through which water circulates, and a second load circulation water channel through which water circulates through the burner-heated heat exchanger and the load heat exchanger at the pressure of the circulation pump ( For example, see Patent Document 3.)
In the apparatus described in Patent Document 3, one circulation pump and one burner heating type heat exchanger are provided, and the first load circulation channel and the second load circulation channel are the circulation pump and the heat pump heating type heat exchanger. And a water channel including a burner heating type heat exchanger is at least commonly configured.

JP 2009-299941 A JP 2009-299942 A Japanese Patent Laid-Open No. 2001-317806

In the devices described in Patent Documents 1 and 2, since each of the hot water supply channel, the tank circulation channel, and the load circulation channel is configured as a circuit that allows water to flow independently, a flow channel portion that allows water to flow therethrough. Must be piped separately. Therefore, the number of flow path portions becomes large, and the large number of flow path portions must be piped in a limited space, resulting in a problem of complicated piping.
In addition, in the devices described in Patent Documents 1 and 2, since each of the circulation pump and the burner heating type heat exchanger is provided two by two, the number of members increases, resulting in an increase in cost and a complicated configuration. It has become a cause. And since the heat pump heating type heat exchanger is comprised by the three-fluid heat exchanger with a complicated structure, complication of a structure is more remarkable.

In the apparatus described in Patent Document 3, the first load circulation channel and the second load circulation channel are configured to share at least a water channel including a circulation pump, a heat pump heating heat exchanger, and a burner heating heat exchanger. Therefore, compared to the devices described in Patent Documents 1 and 2, the number of flow path parts can be reduced, and the problem that the piping is complicated and the problem that the configuration is complicated and the cost is increased can be solved. Conceivable.
However, in the apparatus described in Patent Document 3, unlike the apparatuses described in Patent Documents 1 and 2, the hot water supply channel supplies the water taken out from the hot water supply tank as it is to the hot water use location with the pressure of the upper water. Therefore, since the water in the hot water supply tank cannot be heated and supplied, hot water cannot be supplied from the hot water supply tank at all when water having a temperature slightly lower than the hot water supply set temperature is stored in the hot water supply tank. Therefore, it is necessary to newly provide a water channel or the like for supplying the clean water supplied via the circulation pump to the hot water supply use location via the burner heating type heat exchanger. Therefore, it is necessary to provide a new flow path part, eventually increasing the number of flow path parts and the number of members, making the piping complicated and possibly complicating the configuration.

  The present invention has been made paying attention to such a point, and its purpose is to adopt a structure such as a three-fluid heat exchanger having a simple and simple piping and a complicated structure as a heat exchanger. Therefore, the present invention is to provide a heat medium supply device that can reduce the number of circulation pumps, heat exchangers, and valves as much as possible to simplify the configuration and reduce the cost.

  In order to achieve this object, the heat medium supply device according to the present invention is characterized by a hot water supply tank that stores water to be supplied to a hot water supply use location, a circulation pump that circulates water in the water channel, and a heat pump device that supplies water. A heat pump heating heat exchanger that heats, a burner heating heat exchanger that heats water by a burner combustion device, a load heat exchanger that consumes heat in at least one of a heating load and an additional load, and at least clean water A first water passage for supplying water taken out from the hot water supply tank by pressure to the hot water supply utilization site via at least the burner heating heat exchanger, and the burner heating heat exchanger and the load by pressure of the circulation pump. A heat exchanger and a second water channel through which water circulates via the heat pump heating type heat exchanger, wherein the first water channel and the second water channel are the burner heating type heat exchanger. A water passage including at least a common configuration, and an operation control means capable of switching the burner combustion device between a combustion state and a non-combustion state and switching the heat pump device between an operation state and a non-operation state. There is in point.

  According to this feature, the first water channel supplies the water taken out from the hot water supply tank at least with the pressure of the hot water to the hot water use location via the burner heating type heat exchanger. The hot water stored in the tank can be supplied to the hot water use location, and the water stored in the hot water tank is burner-heated even when the hot water tank stores water whose temperature is lower than the hot water set temperature. It can be heated in a heat exchanger to make hot water, and the hot water can be supplied to a hot water supply use location. Thereby, in the 1st water channel, in order to supply the water of a hot-water supply tank to a hot-water supply utilization location via a burner heating type heat exchanger, the pressure of at least clean water can be used. Moreover, the 2nd water channel can supply the water which passed through the burner heating type heat exchanger and the heat pump heating type heat exchanger to a load heat exchanger by the pressure of a circulation pump, without going through a hot water supply tank. When the water is circulated in the second water channel, the operation control means switches the burner combustion device to the non-combustion state and the heat pump device to the operation state, so that the water heated by the heat pump heating heat exchanger Can be supplied to the load heat exchanger, and the operation control means switches the burner combustion device to the combustion state and the heat pump device to the non-operation state, thereby loading the water heated by the burner heating type heat exchanger. It can be supplied to a heat exchanger. Therefore, the operation control means switches the states of the burner combustion device and the heat pump device, so that heated water can be supplied to the load heat exchanger using the heat source as the heat pump device or the burner combustion device.

  And as a water channel, what is necessary is just to provide a 1st water channel and a 2nd water channel, and since the water channel containing a burner heating type heat exchanger is at least common between a 1st water channel and a 2nd water channel. One flow path part can be used as a common part in each water channel, and the number of flow path parts can be reduced, and the circulation pump, the burner heating type heat exchanger, and the heat pump heating type heat exchanger It is only necessary to provide each one. Therefore, piping is simple and simple, and it is not necessary to adopt a three-fluid heat exchanger with a complicated structure as a heat exchanger, and the number of circulation pumps and heat exchangers is reduced as much as possible. It is possible to realize a heat medium supply device that can achieve simplification and cost reduction.

  A further characteristic configuration of the heat medium supply device according to the present invention includes a first flow path portion connected to the hot water supply tank for supplying clean water to the hot water supply tank, the hot water supply tank, and the burner heating type heat exchanger. A second flow path part to be connected, a third flow path part for connecting the burner heating type heat exchanger and the hot water supply use part, a middle part of the third flow path part and a second part for connecting the load heat exchanger. 4 flow passage portions, a fifth flow passage portion connecting the load heat exchanger and the heat pump heating heat exchanger, and a midway portion of the heat pump heating heat exchanger and the second flow passage portion are connected. A sixth flow path part provided with the circulation pump, and the first water channel includes the first flow path part, the hot water supply tank, the second flow path part, the burner heating type heat exchanger, and the first. Three flow path parts, the fourth flow path part, the load heat exchanger and the front It is composed of a fifth flow path part, the heat pump heating type heat exchanger, and the sixth flow path part, and the second water channel includes the burner heating type heat exchanger, a part of the third flow path part, and the The point comprised by the 4th flow-path part, the said load heat exchanger, the said 5th flow-path part, the said heat pump heating type heat exchanger, the said 6th flow-path part, and a part of said 2nd flow-path part. It is in.

  According to this characteristic configuration, the six flow path parts of the first to sixth flow path parts are provided as the flow path parts. The first water channel and the second water channel are appropriately combined with a plurality of flow path parts. Can be configured. The first water channel and the second water channel are a part of the second flow path part, a burner heating type heat exchanger, a part of the third flow path part, a fourth flow path part, a load heat exchanger, and a fifth flow. The path part, the heat pump heating type heat exchanger, and the sixth flow path part can be configured in common. Therefore, while providing a common flow path portion between the first water channel and the second water channel, by appropriately switching the on-off valve and the proportional valve, each water channel can be appropriately configured, and the on-off valve and the proportional valve The number can be reduced as much as possible, and the increase in the number of members can be appropriately prevented, thereby simplifying the configuration.

  Incidentally, as for the circuit configuration of the first water channel and the second water channel, the first channel part that is connected to the hot water tank and supplies the hot water to the hot water tank, and the second channel that connects the hot water tank and the burner heating type heat exchanger. A flow path part, a third flow path part for connecting the burner heating type heat exchanger and the hot water supply use part, a fourth flow path part for connecting the intermediate part of the third flow path part and the load heat exchanger, and load heat A fifth flow path portion provided with a circulation pump by connecting the exchanger and the heat pump heating heat exchanger, and a sixth flow path portion connecting the heat pump heating heat exchanger and the intermediate portion of the second flow path portion. A first water channel, a hot water tank, a second flow channel, a burner heating heat exchanger, a third flow channel, a fourth flow channel, a load heat exchanger, and a fifth flow. A passage part, a heat pump heating type heat exchanger, and a sixth passage part. Heater, part of third flow path part, fourth flow path part, load heat exchanger, fifth flow path part, heat pump heating type heat exchanger, sixth flow path part and second flow path It can also consist of a part of the part.

  The heat medium supply device according to the present invention is further characterized in that the operation control means includes a hot water supply operation in which water is supplied to the hot water supply utilization site through the first water channel, and the circulation pump is operated to operate the burner combustion device. Is switched to a non-combustion state, and the heat pump device is switched to an operating state, and water heated in the heat pump heating type heat exchanger through the second water channel is supplied to the load heat exchanger. Operation, switching the burner combustion device to a combustion state by operating the circulation pump and switching the heat pump device to a non-operation state, and heating the water heated by the burner heating heat exchanger through the second water channel The heat consumption operation in the burner heating state supplied to the load heat exchanger can be executed.

  According to this characteristic configuration, when the operation control means performs the hot water supply operation, the water taken out from the hot water supply tank at least with the pressure of the clean water can be supplied to the hot water use location via the burner heating type heat exchanger. In addition, water can be appropriately supplied to the hot water use location. Then, the operation control means performs the heat consumption operation in the heat pump heating state, so that the water heated in the heat pump heating type heat exchanger is heated in the burner heating type heat exchanger with the pressure of the circulation pump. And can be supplied to a load heat exchanger. Moreover, the water heated by the burner heating type heat exchanger is heated by the heat pump heating type heat exchanger at the pressure of the circulation pump by the operation control means performing the heat consumption operation in the burner heating state. And can be supplied to a load heat exchanger. As described above, the operation control means performs the heat consumption operation by switching between the heat consumption operation in the heat pump heating state and the heat consumption operation in the burner heating state, so that the heat pump device and the burner combustion device are used as heat sources. While being able to select which one to use, water can be appropriately supplied to the load heat exchanger. Therefore, when the operation control means performs each operation, it is possible to flexibly cope with hot water supply, heating, and remembrance, and simplify the configuration and reduce the cost by simplifying the piping. It is possible to realize a useful heat medium supply device.

  A further characteristic configuration of the heat medium supply device according to the present invention includes a third water channel through which water circulates at least via the hot water supply tank and the heat pump heating heat exchanger at the pressure of the circulation pump, The water taken out from the hot water supply tank is heated by the heat pump in the heat pump heating type heat exchanger, and the water can be circulated so as to return the heated water to the hot water supply tank. A 3rd water channel exists in the point by which the water channel containing the said heat pump heating type heat exchanger is comprised at least in common.

  According to this characteristic configuration, the third water channel can heat the water taken out from the hot water supply tank by the heat pump heating heat exchanger and return the heated water to the hot water supply tank by the pressure of the circulation pump. The water can be heated to warm water by a heat pump heating type heat exchanger, and the hot water can be stored in a hot water supply tank. Therefore, the heat acquired from the outside air or the like by the heat pump device can be stored in the hot water supply tank. And since the water of a hot-water supply tank is taken out from a hot-water supply tank by a 1st water channel, and is supplied to a hot-water supply utilization location, the heat accumulated in the hot-water supply tank can be used effectively, and energy efficiency can be improved. it can.

  A further characteristic configuration of the heat medium supply device according to the present invention includes a first flow path portion connected to the hot water supply tank for supplying clean water to the hot water supply tank, the hot water supply tank, and the burner heating type heat exchanger. A second flow path part to be connected, a fifth flow path part to connect the load heat exchanger and the heat pump heating type heat exchanger, and an intermediate part of the heat pump heating type heat exchanger and the second flow path part. A sixth flow path part connected and provided with the circulation pump; and a seventh flow path part for connecting a midway part of the first flow path part and a midway part of the fifth flow path part, The third water channel includes the hot water tank, a part of the first channel part, the seventh channel part, a part of the fifth channel part, the heat pump heating type heat exchanger, and the sixth channel part. And a part of the second flow path part.

  According to this characteristic configuration, the third channel is appropriately configured by combining the first channel portion, the second channel portion, the fifth channel portion, the sixth channel portion, and the seventh channel portion. Can do. As described above, the first flow path part, the second flow path part, the fifth flow path part, and the sixth flow path part are also used to configure the first water channel and the second water channel. . Therefore, while providing a common flow path portion between the first water channel, the second water channel, and the third water channel, each water channel can be appropriately configured by appropriately switching the on-off valve and the proportional valve. Further, the number of on-off valves and proportional valves can be reduced as much as possible to appropriately prevent an increase in the number of members, thereby simplifying the configuration.

  Incidentally, as for the circuit configuration of the third water channel, a first channel part connected to the hot water tank and supplying the hot water to the hot water tank, and a second channel part connecting the hot water tank and the burner heating type heat exchanger, The sixth flow connecting the fifth flow path part provided with the circulation pump by connecting the load heat exchanger and the heat pump heating type heat exchanger, and the middle part of the heat pump heating type heat exchanger and the second flow path part. A passage portion, a seventh passage portion connecting the intermediate portion of the first passage portion and the portion between the load heat exchanger and the circulation pump in the fifth passage portion, and the third water passage as a hot water supply tank And a part of the first flow path part, a seventh flow path part, a part of the fifth flow path part, a heat pump heating type heat exchanger, a sixth flow path part, and a part of the second flow path part. You can also

  According to a further characteristic configuration of the heat medium supply device according to the present invention, the operation control means operates the circulation pump to switch the heat pump device to an operating state, and the heat pump heating heat exchanger is switched to the heat pump by the third water channel. The heat storage operation for supplying the heated water to the hot water supply tank is executable.

  According to this characteristic configuration, when the operation control means performs the heat storage operation, the water taken out from the hot water supply tank is heated by the heat pump heating type heat exchanger, and the heated water is returned to the hot water supply tank, and the heat pump device The heat acquired from can be stored in the hot water tank. Then, as described above, the operation control means can supply the heat stored in the hot water supply tank to the hot water supply use location by performing the hot water supply operation after performing the heat storage operation, and the heat acquired from the heat pump device. Can be effectively used for hot water supply, and energy efficiency can be improved.

  According to a further characteristic configuration of the heat medium supply device according to the present invention, the second water channel and the third water channel heat the water taken out from the hot water supply tank by the burner heating type heat exchanger, and are heated. The water circulates so that the water is returned to the hot water supply tank.

  According to this characteristic configuration, the water taken out from the hot water tank can be heated by the burner heating type heat exchanger by the second water channel and the third water channel, and the heated water can be returned to the hot water tank. The water in the hot water supply tank can be heated using the combustion device as a heat source. Therefore, since the hot water tank stores water, Legionella bacteria and the like may propagate, but the water in the hot water tank can be sterilized at a high temperature, thus preventing the breeding of Legionella bacteria and the like appropriately. can do.

  A further characteristic configuration of the heat medium supply device according to the present invention is that the water taken out from the hot water supply tank by the pressure of clean water without using the pressure of the circulation pump by bypassing at least the burner heating type heat exchanger. It exists in the point comprised so that the 1st bypass water channel supplied to a hot-water supply utilization location can be formed.

  According to this characteristic configuration, in the first bypass channel, the water in the hot water tank can be supplied to the hot water use location without going through the burner heating type heat exchanger. When the hot water is being supplied, the burner combustion apparatus can be used as another heat source. Therefore, in the first bypass channel, supplying water taken out from the hot water supply tank with the pressure of clean water to the hot water use location, and heating the water in the burner heating type heat exchanger using the burner combustion device as a heat source. , Can be done at the same time without interfering with each other.

  A further characteristic configuration of the heat medium supply device according to the present invention includes a first flow path portion connected to the hot water supply tank for supplying clean water to the hot water supply tank, the hot water supply tank, and the burner heating type heat exchanger. A second flow path part connected and provided with the circulation pump; a third flow path part connecting the burner heating type heat exchanger and the hot water supply use part; a middle part of the third flow path part; A fourth flow path part for connecting the load heat exchanger, a fifth flow path part for connecting the load heat exchanger and the heat pump heating heat exchanger, the heat pump heating heat exchanger and the second flow path. A sixth flow path part for connecting a part between the hot water tank and the circulation pump in the part, a part between the hot water tank and the connection part to the sixth flow path part in the second flow path part, and The fourth flow in the third flow path part A first bypass flow path portion that connects a connection location to the location and a location between the hot water use location and the first water channel is the first flow path portion, the hot water supply tank, and the second flow channel. A part, the burner heating type heat exchanger, and the third flow path part, and the first bypass water channel includes the first flow path part, the hot water supply tank, a part of the second flow path part, and the The second bypass channel is composed of a first bypass channel part and a part of the third channel part, and the second water channel includes the burner heating type heat exchanger, a part of the third channel part and the fourth channel. It is in the point comprised by the site | part, the said load heat exchanger, the said 5th flow-path part, the said heat pump heating type heat exchanger, the said 6th flow-path part, and a part of said 2nd flow-path part.

  According to this characteristic configuration, each of the first water channel, the first bypass water channel, and the second water channel is obtained by combining a plurality of flow channel regions of the first to sixth flow channel regions and the first bypass flow channel region. Can be configured appropriately. And while providing a common flow-path part among a 1st waterway, a 1st bypass waterway, and a 2nd waterway, each waterway can be comprised appropriately by switching an on-off valve and a proportional valve suitably. At the same time, the number of on-off valves and proportional valves can be reduced as much as possible to appropriately prevent an increase in the number of members, thereby simplifying the configuration. In addition, since the first bypass channel and the second channel can be made to independently pass water, the water extracted from the hot water supply tank is supplied to the hot water use location by the pressure of the clean water in the first bypass channel. And simultaneously supplying the water heated by the burner heating type heat exchanger to the load heat exchanger at the pressure of the circulation pump in the second water channel without interfering with each other. it can.

Incidentally, the circuit configurations of the first water channel, the first bypass water channel, and the second water channel can be configured as follows.
That is, a first flow path portion connected to a hot water supply tank for supplying clean water to the hot water supply tank, a second flow path portion connecting the hot water supply tank and the burner heating heat exchanger, a burner heating heat exchanger, and a hot water supply A third flow path part provided with a circulation pump by connecting the use points, a fourth flow path part connecting the load heat exchanger with a part between the circulation pump and the hot water supply use point in the third flow path part, A fifth flow path portion connecting the load heat exchanger and the heat pump heating heat exchanger, a sixth flow path portion connecting the heat pump heating heat exchanger and the second flow path portion, and a second flow path. A first bypass that connects a portion between the hot water supply tank and the connection portion to the sixth flow passage portion in the portion and a portion between the connection portion to the fourth flow passage portion and the hot water supply use portion in the third flow passage portion. And a first water channel with the first flow channel region. A tank, a second flow path part, a burner heating type heat exchanger, and a third flow path part are configured, and the first bypass water channel is formed with a first flow path part, a hot water supply tank, a part of the second flow path part, 1 bypass flow path part and a part of the third flow path part, the second water channel is a burner heating type heat exchanger, a part of the third flow path part, a fourth flow path part and a load heat exchanger And a fifth flow path part, a heat pump heating type heat exchanger, a sixth flow path part, and a part of the second flow path part.

  In addition, a first flow path part connected to the hot water tank for supplying clean water to the hot water tank, a second flow path part for connecting the hot water tank and the burner heating heat exchanger, the burner heating heat exchanger and the hot water supply A third flow path part for connecting the use location, a fourth flow path part for connecting the intermediate part of the third flow path part and the load heat exchanger, and a second flow path for connecting the load heat exchanger and the heat pump heating type heat exchanger. A fifth flow path part, a heat pump heating heat exchanger and a sixth flow path part provided with a circulation pump by connecting a halfway part of the second flow path part, a hot water supply tank and a sixth flow in the second flow path part A first bypass flow path part for connecting a part between the connection part to the road part and the connection part to the fourth flow path part in the third flow path part and the hot water supply use part, Add 1 channel to 1st channel part, hot water supply tank, 2nd channel part and burner A heat exchanger, a third flow path part, a fourth flow path part, a load heat exchanger, a fifth flow path part, a heat pump heating heat exchanger, and a sixth flow path part, and a first bypass water channel The first flow path part, the hot water tank, a part of the second flow path part, the first bypass flow path part and the part of the third flow path part, and the second water channel is a burner heating type heat exchanger And a part of the third flow path part, a fourth flow path part, a load heat exchanger, a fifth flow path part, a heat pump heating type heat exchanger, a sixth flow path part and a part of the second flow path part. Can be configured.

  Further, a first flow path portion connected to the hot water supply tank for supplying clean water to the hot water supply tank, a second flow path portion connecting the hot water supply tank and the burner heating heat exchanger, a burner heating heat exchanger and hot water supply Connect the third flow path part that connects the use points, the fourth flow path part that connects the intermediate part of the third flow path part and the load heat exchanger, the load heat exchanger, and the heat pump heating type heat exchanger. A fifth flow path part provided with a circulation pump, a sixth flow path part connecting the heat pump heating heat exchanger and the intermediate part of the second flow path part, a hot water supply tank and a sixth flow in the second flow path part A first bypass flow path part for connecting a part between the connection part to the road part and the connection part to the fourth flow path part in the third flow path part and the hot water supply use part, 1 channel, 1st flow path part, hot water supply tank, 2nd flow path part, and burner A heat bypass heat exchanger, a third flow path part, a fourth flow path part, a load heat exchanger, a fifth flow path part, a heat pump heating heat exchanger, and a sixth flow path part, and a first bypass water channel Is composed of a first flow path part, a hot water supply tank, a part of the second flow path part, a first bypass flow path part and a part of the third flow path part, and the second water path is burner heating type heat exchange And a part of the third flow path part, the fourth flow path part, the load heat exchanger, the fifth flow path part, the heat pump heating heat exchanger, the sixth flow path part, and the second flow path part. Can be configured.

  In addition, the first flow path part connected to the hot water tank for supplying the hot water to the hot water tank, the hot water tank and the burner heating heat exchanger are connected, and the circulation pump and the heat pump heating heat are connected in order from the hot water tank. A second flow path part provided with an exchanger, a third flow path part for connecting a burner heating type heat exchanger and a hot water supply use part, and a middle part of the third flow path part for connecting a load heat exchanger. A fourth flow path portion, a load heat exchanger, a sixth flow path portion connecting the hot water supply tank and the circulation pump in the second flow path portion, and a hot water supply tank and a sixth flow path portion in the second flow path portion. A first bypass channel that includes a part between the connection point to the connection point and a connection point to the fourth channel part in the third channel part and a part between the hot water supply use part and the first water channel. The first flow path part, the hot water tank, the second flow path part and the burner It is composed of a thermal heat exchanger and a third flow path part, and the first bypass water path is made up of the first flow path part, the hot water tank, a part of the second flow path part, the first bypass flow path part, and the third flow. The second water channel is constituted by a burner heating type heat exchanger, a part of the third flow path part, a fourth flow path part, a load heat exchanger, a sixth flow path part, and a second. It can comprise with a part of channel part.

  In addition, a heat pump heating type heat exchanger connected to the hot water supply tank is connected to the first flow path part for supplying the hot water to the hot water supply tank, and the hot water supply tank and the burner heating type heat exchanger are connected. And the second flow path part provided with the circulation pump, the third flow path part connecting the burner heating type heat exchanger and the hot water supply use part, and the intermediate part of the third flow path part and the load heat exchanger are connected. A fourth flow path portion, a load heat exchanger, a sixth flow path portion connecting portions between the hot water supply tank in the second flow passage portion and the heat pump heating heat exchanger, and a hot water supply tank in the second flow passage portion A first bypass flow path portion that connects a portion between the connection portion to the sixth flow passage portion and a connection portion to the fourth flow passage portion in the third flow passage portion and a portion between the hot water supply use location and the third flow passage portion; Provided with a first water channel, a first channel part and a hot water supply tank It is composed of two flow path parts, a burner heating type heat exchanger, and a third flow path part, and the first bypass water path is made up of the first flow path part, the hot water tank, a part of the second flow path part, and the first bypass flow. The second water channel is configured by a burner heating type heat exchanger, a part of the third channel part, a fourth channel part, a load heat exchanger, and a sixth channel. It can be composed of a flow path part and a part of the second flow path part.

  According to a further characteristic configuration of the heat medium supply device according to the present invention, the operation control means corresponds to a hot water supply set temperature at which the temperature of the hot water supply tank is required at the hot water supply use location in the hot water supply operation. When the temperature is equal to or higher than the switching set temperature, the first bypass water channel is switched to a bypass state in which water is supplied to the hot water use location, and when the temperature of the water in the hot water tank is lower than the switching set temperature, the first There exists in the point comprised so that it may switch to the non-bypass state which supplies water to the said hot water supply utilization location by a water channel.

  According to this characteristic configuration, when the operation control means performs the hot water supply operation, if the temperature of the water in the hot water supply tank is equal to or higher than the switching set temperature, the operation control means switches to the bypass state, and the first bypass water channel Bypassing the burner-heated heat exchanger, water is directly supplied to the hot water use location. As a result, when there is water in the hot water supply tank that is higher than the switching set temperature, the water in the hot water supply tank can be prevented while bypassing the burner heating heat exchanger and preventing heat radiation by passing through the burner heating heat exchanger. As it is, the hot water supply temperature can be supplied to the hot water use location. Also, when there is no water above the switching set temperature in the hot water supply tank, the water in the hot water supply tank can be supplied to the hot water use location via the burner heating type heat exchanger through the first water channel. The water in the hot water supply tank can be heated by the heat exchanger to supply the hot water supply temperature to the hot water use location. Therefore, it is possible to appropriately supply the hot water supply temperature to the hot water use location while effectively using the water in the hot water tank.

  A further characteristic configuration of the heat medium supply device according to the present invention is that at least a first water channel through which water circulates at least through the hot water supply tank and the heat pump heating heat exchanger at a pressure of the circulation pump. It consists of a part of the bypass channel.

  As described above, the first bypass water channel is a water channel for supplying the water in the hot water supply tank to the hot water use location by bypassing the burner heating type heat exchanger. According to this characteristic configuration, the first bypass water channel is used. Is used to constitute a third water channel through which water circulates at least via a hot water supply tank and a heat pump heating heat exchanger at the pressure of the circulation pump. Thereby, by using a part of the first bypass water channel not only for supplying the water in the hot water supply tank to the hot water supply use place by bypassing the burner heating type heat exchanger, but also using it as the third water channel, The configuration can be simplified.

  A further characteristic configuration of the heat medium supply device according to the present invention includes a first flow path portion connected to the hot water supply tank for supplying clean water to the hot water supply tank, the hot water supply tank, and the burner heating type heat exchanger. A second flow path part connected and provided with the circulation pump; a third flow path part connecting the burner heating type heat exchanger and the hot water supply use part; a middle part of the third flow path part; A fourth flow path part for connecting the load heat exchanger, a fifth flow path part for connecting the load heat exchanger and the heat pump heating heat exchanger, the heat pump heating heat exchanger and the second flow path. A sixth flow path portion connecting a portion between the hot water supply tank and the circulation pump in the portion, and a seventh flow path connecting a middle portion of the first flow passage portion and a middle portion of the fifth flow path portion. Part and the hot water supply tank in the second flow path part A first bypass flow that connects a portion between the connection portion to the sixth flow passage portion and a portion between the connection portion to the fourth flow passage portion and the hot water supply use portion in the third flow passage portion. The first water channel is composed of the first flow path part, the hot water supply tank, the second flow path part, the burner heating heat exchanger, and the third flow path part, The first bypass channel is composed of the first channel part, the hot water tank, a part of the second channel part, the first bypass channel part, and a part of the third channel part, The second water channel includes the burner heating type heat exchanger, a part of the third flow path part, the fourth flow path part, the load heat exchanger, the fifth flow path part, and the heat pump heating type heat exchanger. And the sixth flow path part and a part of the second flow path part, the third water channel, The hot water tank, a part of the first flow path part, the seventh flow path part, a part of the fifth flow path part, the heat pump heating type heat exchanger, the sixth flow path part, and the second flow It is in the point comprised by the channel | path site | part, the said burner heating type heat exchanger, a part of said 3rd flow-path part, and the said 1st bypass flow-path part.

  According to this characteristic configuration, the first water channel, the first bypass water channel, the second water channel, Each of the three waterways can be configured appropriately. And while providing a common flow-path part among a 1st waterway, a 1st bypass waterway, a 2nd waterway, and a 3rd waterway, each switch is appropriately comprised by switching an on-off valve and a proportional valve suitably In addition, the number of on-off valves and proportional valves can be reduced as much as possible to appropriately prevent an increase in the number of members, thereby simplifying the configuration.

Incidentally, the circuit configurations of the first water channel, the first bypass water channel, the second water channel, and the third water channel can be configured as follows.
That is, a first flow path portion connected to a hot water supply tank for supplying clean water to the hot water supply tank, a second flow path portion connecting the hot water supply tank and the burner heating heat exchanger, a burner heating heat exchanger, and a hot water supply A third flow path part provided with a circulation pump by connecting the use points, a fourth flow path part connecting the load heat exchanger with a part between the circulation pump and the hot water supply use point in the third flow path part, A fifth flow path portion connecting the load heat exchanger and the heat pump heating heat exchanger, a sixth flow path portion connecting the heat pump heating heat exchanger and the intermediate portion of the second flow path portion, and the first flow A seventh flow path portion connecting the midway portion of the road portion and the midway portion of the fifth flow path portion; a portion between the hot water tank in the second flow path portion and the connection location to the sixth flow path portion; The connection point to the fourth flow path part and the hot water supply use point in the three flow path parts The first bypass channel is connected to the first bypass channel, and the first water channel is composed of a first channel site, a hot water tank, a second channel site, a burner heating heat exchanger, and a third channel site. The first bypass channel is composed of a first channel part, a hot water tank, a part of the second channel part, a part of the first bypass channel part and a part of the third channel part, and the second channel , Burner heating type heat exchanger, part of third flow path part, fourth flow path part, load heat exchanger, fifth flow path part, heat pump heating type heat exchanger, sixth flow path part and second flow The third water channel is composed of a part of the channel part, and the third water channel, part of the first channel part, part of the seventh channel part, part of the fifth channel part, heat pump heating type heat exchanger and It can be constituted by six flow path parts, a second flow path part, a burner heating type heat exchanger, a part of the third flow path part, and a first bypass flow path part.

  In addition, a first flow path part connected to the hot water tank for supplying clean water to the hot water tank, a second flow path part for connecting the hot water tank and the burner heating heat exchanger, the burner heating heat exchanger and the hot water supply A third flow path part for connecting the use location, a fourth flow path part for connecting the intermediate part of the third flow path part and the load heat exchanger, and a second flow path for connecting the load heat exchanger and the heat pump heating type heat exchanger. A fifth flow path part, a heat pump heating heat exchanger, a sixth flow path part provided with a circulation pump by connecting a midway part of the second flow path part, a midway part of the first flow path part and a fifth flow A seventh flow path part connecting the middle part of the road part, a part between the hot water tank in the second flow path part and the connection part to the sixth flow path part, and a fourth flow path in the third flow path part 1st bypass channel part which connects the site | part between the connection location to a location and a hot-water supply utilization location The first water channel, the first channel part, the hot water tank, the second channel part, the burner heating heat exchanger, the third channel part, the fourth channel part, the load heat exchanger, and the fifth. A flow path part, a heat pump heating type heat exchanger, and a sixth flow path part are configured, and the first bypass water path is formed of the first flow path part, the hot water supply tank, a part of the second flow path part, and the first bypass flow path. And a part of the third flow path part, and the second water channel is composed of a burner heating type heat exchanger, a part of the third flow path part, a fourth flow path part, a load heat exchanger, and a fifth flow. The passage part, the heat pump heating type heat exchanger, the sixth passage part, and a part of the second passage part, and the third water channel, the hot water tank, a part of the first passage part, and the seventh passage Part, part of fifth channel part, heat pump heating type heat exchanger, sixth channel part, second channel part, burner heating type heat exchanger, part of third channel part and first It can be configured with a bypass passage portion.

  Further, a first flow path portion connected to the hot water supply tank for supplying clean water to the hot water supply tank, a second flow path portion connecting the hot water supply tank and the burner heating heat exchanger, a burner heating heat exchanger and hot water supply Connect the third flow path part that connects the use points, the fourth flow path part that connects the intermediate part of the third flow path part and the load heat exchanger, the load heat exchanger, and the heat pump heating type heat exchanger. A fifth flow path portion provided with a circulation pump, a sixth flow path portion connecting the heat pump heating type heat exchanger and a middle portion of the second flow path portion, a middle portion of the first flow path portion and a fifth flow A seventh passage portion connecting the load heat exchanger and the portion between the circulation pump in the passage portion, a portion between the hot water tank and the connection portion to the sixth passage portion in the second passage portion, and the first Between the connection point to the fourth flow path part and the hot water supply use point in the three flow path parts A first bypass channel connecting the sites, the first water channel, the first channel site, the hot water tank, the second channel site, the burner heating heat exchanger, the third channel site, and the fourth flow. A path part, a load heat exchanger, a fifth flow path part, a heat pump heating type heat exchanger, and a sixth flow path part are configured, and the first bypass water channel is formed by the first flow path part, the hot water supply tank, and the second flow path. A part of the part, a part of the first bypass channel part and a part of the third channel part, and the second water channel is a burner heating type heat exchanger, part of the third channel part and the fourth channel. It comprises a part, a load heat exchanger, a fifth flow path part, a heat pump heating type heat exchanger, a sixth flow path part and a part of the second flow path part, and the third water channel is connected to the hot water supply tank and the first flow. Part of the channel part, part of the seventh channel part, part of the fifth channel part, heat pump heating type heat exchanger, sixth channel part, second channel part, and burner heating type It can be composed of exchanger and a part of the third channel portion and the first bypass passage portion.

  A further characteristic configuration of the heat medium supply device according to the present invention includes a first flow path portion connected to the hot water supply tank for supplying clean water to the hot water supply tank, the hot water supply tank, and the burner heating type heat exchanger. And a third flow connecting the second flow path part provided with the circulation pump and the heat pump heating type heat exchanger in order from the hot water supply tank, and the burner heating type heat exchanger and the hot water supply use part. A passage portion, a middle portion of the third flow passage portion, a fourth flow passage portion connecting the load heat exchanger, the hot water supply tank in the load heat exchanger, the second flow passage portion, and the circulation pump. A sixth flow path portion that connects a portion therebetween, a seventh flow passage portion that connects a middle portion of the first flow passage portion and a middle portion of the sixth flow passage portion, and a second flow passage portion Connection point between the hot water tank and the sixth flow path part A first bypass flow path portion connecting a portion between the portion between the first flow passage portion and the connection portion to the fourth flow passage portion in the third flow passage portion and the hot water supply utilization portion. Is composed of the first flow path part, the hot water supply tank, the second flow path part, the burner heating heat exchanger, and the third flow path part, and the first bypass water channel is the first flow path. A passage part, the hot water supply tank, a part of the second passage part, a part of the first bypass passage part and a part of the third passage part, and the second water passage is the burner heating type heat. An exchanger, a part of the third flow path part, the fourth flow path part, the load heat exchanger, the sixth flow path part, and a part of the second flow path part; The water channel is a part of the hot water supply tank, the first flow path part, the seventh flow path part, and the sixth flow path part. In that it is constituted by a portion between the first bypass passage portion of the third channel portion and the burner heating heat exchanger and the second flow path portion.

  According to this characteristic configuration, the first water channel, the first bypass water channel, the second water channel, Each of the three waterways can be configured appropriately. And while providing a common flow-path part among a 1st waterway, a 1st bypass waterway, a 2nd waterway, and a 3rd waterway, each switch is appropriately comprised by switching an on-off valve and a proportional valve suitably In addition, the number of on-off valves and proportional valves can be reduced as much as possible to appropriately prevent an increase in the number of members, thereby simplifying the configuration. In addition, since the heat pump heating type heat exchanger is provided in the second flow path part, the heat pump heating type heat exchanger, the third flow path part, Water can be circulated so as to return to the heat pump heating type heat exchanger through the order of the 1 bypass flow path part and the second flow path part. Thereby, when the temperature of water, such as a 1st bypass channel part, is lower than the heat storage temperature requested | required in a hot water supply tank, it is 1st bypass in the state heated with a heat pump heating type heat exchanger Water in the flow path portion or the like can be circulated, and water in the first bypass flow path portion or the like can be preheated. Therefore, when the hot water is stored in the hot water supply tank by the third water channel, the water preheated at the beginning can be supplied to the hot water supply tank, and the water at the heat storage temperature can be stably supplied to the hot water supply tank from the beginning. Heat storage in the hot water tank can be performed appropriately.

  A further characteristic configuration of the heat medium supply device according to the present invention includes a first flow path portion connected to the hot water supply tank for supplying clean water to the hot water supply tank, the hot water supply tank, and the burner heating type heat exchanger. And a third flow connecting the second flow path portion provided with the heat pump heating heat exchanger and the circulation pump, and the burner heating heat exchanger and the hot water use location in the order closer to the hot water tank. A road portion, a fourth passage portion connecting the intermediate portion of the third passage portion and the load heat exchanger, the hot water supply tank in the load heat exchanger, the second passage portion, and the heat pump heating type A sixth flow path portion for connecting portions between the heat exchangers, a seventh flow path portion for connecting a midway portion of the first flow path portion and a midway portion of the sixth flow path portion, and the second The hot water supply tank and the sixth flow path in the flow path part And a first bypass flow path portion that connects a portion between the connection portion to the fourth flow passage portion in the third flow passage portion and a portion between the hot water supply use location and the third flow passage portion. The first water channel is composed of the first channel part, the hot water supply tank, the second channel part, the burner heating heat exchanger, and the third channel part, and the first bypass channel is The first flow path part, the hot water tank, a part of the second flow path part, the first bypass flow path part, and a part of the third flow path part, and the second water channel, The burner heating type heat exchanger, a part of the third flow path part, the fourth flow path part, the load heat exchanger, the sixth flow path part, and a part of the second flow path part. And the third water channel includes the hot water supply tank, a part of the first channel part, the seventh channel part, and the first channel part. In that it is constituted by a portion between the first bypass flow path portion of a part and the second flow path portion and the burner heating type heat exchanger wherein the third flow path portion of the channel region.

  According to this characteristic configuration, the first water channel, the first bypass water channel, the second water channel, Each of the three waterways can be configured appropriately. And while providing a common flow-path part among a 1st waterway, a 1st bypass waterway, a 2nd waterway, and a 3rd waterway, each switch is appropriately comprised by switching an on-off valve and a proportional valve suitably In addition, the number of on-off valves and proportional valves can be reduced as much as possible to appropriately prevent an increase in the number of members, thereby simplifying the configuration. In addition, since the heat pump heating type heat exchanger is provided in the second flow path part, the heat pump heating type heat exchanger, the third flow path part, Water can be circulated so as to return to the heat pump heating type heat exchanger through the order of the 1 bypass flow path part and the second flow path part. Thereby, when the temperature of water, such as a 1st bypass channel part, is lower than the heat storage temperature requested | required in a hot water supply tank, it is 1st bypass in the state heated with a heat pump heating type heat exchanger Water in the flow path portion or the like can be circulated, and water in the first bypass flow path portion or the like can be preheated. Therefore, when the hot water is stored in the hot water supply tank by the third water channel, the water preheated at the beginning can be supplied to the hot water supply tank, and the water at the heat storage temperature can be stably supplied to the hot water supply tank from the beginning. Heat storage in the hot water tank can be performed appropriately.

  A further characteristic configuration of the heating medium supply device according to the present invention is that the third water channel configured by at least a part of the first bypass water channel is configured such that the water taken out from the hot water tank is the burner heating type heat exchanger. And the water is circulated so that the heated water is returned to the hot water supply tank.

  According to this characteristic configuration, the water taken out from the hot water supply tank is heated by the burner heating type heat exchanger by the third water channel constituted by at least a part of the first bypass water channel, and the heated water is supplied with the hot water. Since it can be returned to the tank, the water in the hot water supply tank can be heated using the burner combustion device as a heat source. Therefore, by constructing the third water channel by at least a part of the first bypass water channel, the structure can be simplified, and the water in the hot water tank can be sterilized and disinfected at a high temperature to appropriately propagate Legionella bacteria and the like. Can be prevented.

  According to still another aspect of the present invention, there is provided a sensible heat recovery heat exchanger in which the burner heating heat exchanger heats water by sensible heat of combustion gas of the burner combustion device, and the burner combustion device. A latent heat recovery heat exchanger that heats water by the latent heat of the combustion gas, and the latent heat recovery heat exchanger and the sensible heat recovery heat exchanger are arranged in the direction of water flow in the first water channel. A recovery heat exchanger and the sensible heat recovery heat exchanger are provided in this order, and the first bypass water channel bypasses the latent heat recovery heat exchanger and the sensible heat recovery heat exchanger and removes water taken from the hot water supply tank. It exists in the point comprised so that it may supply to the said hot water supply utilization location.

  According to this characteristic configuration, when hot water is supplied to the hot water use location through the first bypass channel, the water taken out from the hot water tank bypasses the latent heat recovery heat exchanger and the sensible heat recovery heat exchanger through the first bypass channel. Then, it can be supplied to the hot water use location. Therefore, water at the hot water supply set temperature can be supplied to the hot water supply use location by using the water in the hot water supply tank as it is, while preventing heat radiation due to passing through the latent heat recovery heat exchanger and the sensible heat recovery heat exchanger. In addition, when hot water is supplied to the hot water use location by the first water channel, the water taken out from the hot water tank is supplied to the hot water usage location via the latent heat recovery heat exchanger and the sensible heat recovery heat exchanger by the first water channel. can do. Therefore, not only the sensible heat of the combustion gas in the sensible heat recovery heat exchanger but also the water is heated not only by the sensible heat of the combustion gas in the latent heat recovery heat exchanger, but also by improving the heating capacity, thereby improving energy savings. be able to.

  According to a further feature of the heat medium supply device according to the present invention, the operation control means switches the burner combustion device to a non-combustion state and switches the heat pump device to an operation state. A heat pump heating state in which heated water is supplied to the load heat exchanger, and the water heated by the burner heating type heat exchanger by switching the burner combustion device to a combustion state and switching the heat pump device to a non-operational state. Switchable between the burner heating state supplied to the load heat exchanger and the heat load required in the load heat exchanger when switched to the burner heating state and the heat pump heating state The primary energy consumption with respect to the case where the primary energy consumption is smaller is selected and switched.

  According to this feature configuration, the operation control means can switch the heat consumption to the load heat exchanger by switching the heat consumption to the smaller one in the heat pump heating state and the burner heating state. In supplying heat to the exchanger, the primary energy consumption required for heating water can be further reduced, and energy saving can be effectively improved.

  A further characteristic configuration of the heat medium supply device according to the present invention is that the operation control means is configured such that the temperature of water supplied to the heat pump heating heat exchanger is higher than a predetermined temperature in a state where the heat pump device is switched to an operating state. When it is high, the heat pump device is switched to a non-operating state.

  When the heat pump device is switched to the operating state, water can be heated in the heat pump heating type heat exchanger, but when the temperature of the water supplied to the heat pump heating type heat exchanger becomes higher than a predetermined temperature, As a result, the coefficient of performance (COP) of the heat pump device is lowered, and the energy efficiency is lowered. Therefore, according to this characteristic configuration, the operation control means deactivates the heat pump device when the temperature of the water supplied to the heat pump heating heat exchanger is higher than a predetermined temperature in the state where the heat pump device is switched to the activated state. Since switching to the state, it is possible to prevent the operation of the heat pump apparatus from being continued in a state where the efficiency is lowered. As a result, a decrease in efficiency of the heat pump device can be prevented, and energy efficiency can be improved.

  A further characteristic configuration of the heat medium supply device according to the present invention is that the water is supplied to the hot water supply use location by the first water channel, and the heat pump heating type heat exchanger is in a state where the heat pump device is switched to an operating state. When the temperature of the supplied water is higher than a predetermined temperature, water is supplied to the water supplied to the heat pump heating heat exchanger, and the temperature of the water supplied to the heat pump heating heat exchanger is equal to or lower than the predetermined temperature. Is provided with an adjustable water supply means.

  As described above, when the heat pump device is switched to the operating state, if the temperature of the water supplied to the heat pump heating type heat exchanger becomes higher than a predetermined temperature, the coefficient of performance (COP) of the heat pump device is reduced and the efficiency is increased. Will drop. Therefore, according to the present characteristic configuration, the water supply means is provided, and the temperature of the water supplied to the heat pump heating type heat exchanger by the water supply means is set to a predetermined temperature or less. That is, since the water supply means supplies water to the water supplied to the heat pump heating type heat exchanger, the temperature of the water supplied to the heat pump heating type heat exchanger can be lowered and the temperature can be kept below a predetermined temperature. . And a water supply means can adjust the temperature of the water supplied to a heat pump heating type heat exchanger below predetermined temperature by adjusting the amount of water supplied to the water supplied to a heat pump heating type heat exchanger. it can. Thus, the operation of the heat pump device can be continued without causing a decrease in efficiency by setting the temperature of the water supplied to the heat pump heating type heat exchanger by the water supply means to a predetermined temperature or less. And since the water in the hot water supply tank is supplied to the hot water supply use location by the first water channel, since the hot water supply tank is supplied with water, only by changing the water supply destination to the heat pump heating type heat exchanger by the water supply means, While maintaining the supply of water to the hot water use location as it is, it is possible to prevent a decrease in the efficiency of the heat pump device.

  A further characteristic configuration of the heat medium supply device according to the present invention is that the water taken out from the hot water supply tank is heated by solar heat, and the heated water channel for returning the heated water to the hot water supply tank is taken out from the hot water supply tank. At least one of the exhaust heat heating water channels that heats the heated water with exhaust heat generated by the combined heat and power unit and returns the heated water to the hot water supply tank, at least with the pressure of the circulation pump and at least the hot water supply tank. It is in the point which serves as the 3rd waterway through which water circulates via the heat pump heating type heat exchanger.

  According to this characteristic configuration, at least one of the solar heat heating channel and the exhaust heat heating channel is also used as the third water channel. Therefore, at least one of the solar heating channel and the exhaust heat heating channel is a flow channel common to the third water channel. The solar heat and the exhaust heat of the combined heat and power supply device can be stored in the hot water tank while being a part.

  Incidentally, what has the same characteristic configuration as the characteristic configuration of the heat medium supply device according to the present invention described above exhibits the same operational effects as those described above.

The figure which shows the hot water supply operation in the heat carrier supply apparatus which concerns on this invention The figure which shows the heating operation in the heat pump heating state in the heat carrier supply apparatus which concerns on this invention The figure which shows the thermal storage driving | operation in the heat-medium supply apparatus which concerns on this invention The figure which shows the heating operation in the hot water supply operation + heat pump heating state in the heat carrier supply apparatus which concerns on this invention The figure which shows the water supply means in the heat-medium supply apparatus which concerns on this invention The figure which shows the heating operation in the heat storage driving | operation + heat pump heating state in the heat carrier supply apparatus which concerns on this invention The figure which shows the high temperature heating operation in the heat carrier supply apparatus which concerns on this invention The figure which shows the hot water supply operation in the bypass state in the heat carrier supply apparatus of 2nd Embodiment. The figure which shows the hot water supply operation in the non-bypass state in the heat carrier supply apparatus of 2nd Embodiment. The figure which shows the heating operation in the heat pump heating state in the heat carrier supply apparatus of 2nd Embodiment. The figure which shows the thermal storage driving | operation in the heat carrier supply apparatus of 2nd Embodiment. The figure which shows the heating operation in the hot water supply operation + heat pump heating state in the bypass state in the heat carrier supply apparatus of 2nd Embodiment The figure which shows the heating operation in the hot water supply operation + heat pump heating state in the non-bypass state in the heat carrier supply apparatus of 2nd Embodiment The figure which shows the water supply means in the heat-medium supply apparatus of 2nd Embodiment. The figure which shows the heating operation in the heat storage operation + heat pump heating state in the heat carrier supply apparatus of 2nd Embodiment. The figure which shows the high temperature heating operation in the heat carrier supply apparatus of 2nd Embodiment. The figure which shows schematic structure of the heat-medium supply apparatus of 3rd Embodiment. The figure which shows schematic structure of the heat-medium supply apparatus of 3rd Embodiment. The figure which shows schematic structure of the heat-medium supply apparatus of 4th Embodiment. The figure which shows schematic structure of the heat-medium supply apparatus of 4th Embodiment. The figure which shows schematic structure of the heat-medium supply apparatus of 5th Embodiment. The figure which shows the hot water supply operation in the non-bypass state in the heat carrier supply apparatus of 6th Embodiment The figure which shows the hot water supply operation in the non-bypass state in the heat carrier supply apparatus of 6th Embodiment The figure which shows the hot water supply operation in the bypass state in the heat carrier supply apparatus of 7th Embodiment The figure which shows the hot water supply operation in the non-bypass state in the heat carrier supply apparatus of 7th Embodiment The figure which shows the heating operation in the heat pump heating state in the heat carrier supply apparatus of 7th Embodiment. The figure which shows the thermal storage driving | operation in the heat carrier supply apparatus of 7th Embodiment The figure which shows the thermal storage preliminary operation in the heat carrier supply apparatus of 7th Embodiment The figure which shows the heating operation in the hot water supply operation + heat pump heating state in the bypass state in the heat carrier supply apparatus of 7th Embodiment The figure which shows the heating operation in the hot water supply operation + heat pump heating state in the non-bypass state in the heat carrier supply apparatus of 7th Embodiment The figure which shows the heating operation in the heat storage driving | operation + heat pump heating state in the heat carrier supply apparatus of 7th Embodiment The figure which shows the case where the hot water supply operation in a bypass state is performed during the heat storage driving | operation in the heat carrier supply apparatus of 7th Embodiment. The high temperature heating driving | operation in the heat carrier supply apparatus of 7th Embodiment is shown. The figure which shows schematic structure of the heat-medium supply apparatus of 8th Embodiment. The figure which shows schematic structure of the heat-medium supply apparatus of 9th Embodiment.

An embodiment of a heat medium supply device according to the present invention will be described with reference to the drawings.
[First Embodiment]
As shown in FIGS. 1 to 3, the heat medium supply device includes a hot water tank 2 that stores water to be supplied to a hot water supply location 1 (for example, a hot water tap), a circulation pump 3 that circulates water in the water channel, and a heat pump device. 4, heat pump heating type heat exchanger 5 that heats water, burner heating type heat exchanger 6 that heats water by burner combustion device N, and load heat exchange that consumes heat at least one of a heating load and a memorial load And a container 7. Here, FIG. 1 to FIG. 3 show a schematic configuration of the heat medium supply device according to the present invention and show the same schematic configuration, but the parts through which water and the heat medium flow are different. The part through which the water or heat medium flows is indicated by a thick line.

  The hot water supply tank 2 is configured by, for example, a sealed tank, and water can be stored in a state in which high temperature water (hot water) forms a temperature stratification on the upper side and low temperature water forms a temperature stratification on the lower side. It is configured. The heat pump device 4 is configured by a compression heat pump device including a compressor 8, a heat pump heating type heat exchanger 5 as a condenser, an expansion valve 9, and a medium circuit 11 that circulates a medium (refrigerant) in this order. Has been. Thereby, the medium (refrigerant) of the heat pump device 4 acquires heat from outside air or the like in the evaporator 10, and the heat pump heating type heat exchanger 5 uses the heat acquired by the medium (refrigerant) of the heat pump device 4 from outside air or the like. The water can be heated freely. The burner heating type heat exchanger 6 is configured to be able to heat water with heat generated by a burner combustion apparatus N that burns gas fuel or the like, for example.

  As the load heat exchanger 7, a first load heat exchanger 7 a for heating load and a second load heat exchanger 7 b for additional load are provided, and the first load heat exchanger 7 a and the second load heat exchanger are provided. 7b is provided in parallel. And the 1st heat-medium circulation path 13 which can circulate a heat medium freely between the 1st load heat exchanger 7a and the heating terminal 12 as a heating load is provided. An open-air heat medium tank 14 and a first heat medium circulation pump 15 that can store the medium are provided. Accordingly, the first heat medium circulation path 13 is configured to circulate the heat medium via the first load heat exchanger 7 a and the heating terminal 12 with the pressure of the first heat medium circulation pump 15. Here, although illustration is omitted, as the heating terminal 12, a high-temperature heating terminal (for example, a bathroom drying device) that requires a high heat load or a low-temperature heating terminal (for example, a floor) that requires a lower heat load than a high-temperature heating terminal. Heating device) can be applied, and a high temperature heating terminal and a low temperature heating terminal can be provided in parallel. Moreover, the 2nd heat-medium circulation path 17 which can freely circulate a heat medium (tub water) between the 2nd load heat exchanger 7b and the bathtub 16 as an additional load is provided, The 2nd heat-medium circulation path 17 is provided. Is provided with a second heat medium circulation pump 18. Thus, the second heat medium circulation path 17 is configured to circulate the heat medium (tub water) via the second load heat exchanger 7b and the bathtub 16 by the pressure of the second heat medium circulation pump 18. Yes.

  In the heat medium supply device according to the present invention, there are three water channels for flowing water, the first water channel W1 (see FIG. 1), the second water channel W2 (see FIG. 2), and the third water channel W3 (see FIG. 3). Has a waterway. As shown in FIG. 1, the first water channel W <b> 1 is configured to supply water extracted from the hot water supply tank 2 at least with the pressure of clean water to the hot water supply use location 1 via at least the burner heating type heat exchanger 6. ing. As shown in FIG. 2, the second water passage W <b> 2 is configured so that water circulates through the burner heating type heat exchanger 6, the load heat exchanger 7, and the heat pump heating type heat exchanger 5 with the pressure of the circulation pump 3. It is configured. As shown in FIG. 3, the third water channel W <b> 3 is configured such that water circulates at least via the hot water supply tank 2 and the heat pump heating heat exchanger 5 with the pressure of the circulation pump 3.

As described above, the heating medium supply device according to the present invention includes the three water channels of the first to third water channels W1 to W3, but each water channel is configured by combining a plurality of flow channel parts. Each flow path part will be described.
That is, in the heat medium supply device according to the present invention, the first flow path part R1, the second flow path part R2, the third flow path part R3, the fourth flow path part R4, and the fifth flow path part are used as the flow path parts. Seven flow path portions R5, a sixth flow path portion R6, and a seventh flow path portion R7 are provided.

  As shown in FIGS. 1 to 3, the first flow path part R <b> 1 is connected to the lower part of the hot water supply tank 2 and configured to supply hot water to the hot water supply tank 2. 2nd flow-path part R2 is comprised so that the upper part of the hot water supply tank 2 and the burner heating type heat exchanger 6 may be connected, and the 1st on-off valve K1 is provided in the middle part. 3rd flow-path site | part R3 is comprised so that the burner heating type heat exchanger 6 and the hot water supply utilization location 1 may be connected. The fourth flow path part R4 is configured to connect the intermediate part of the third flow path part and the load heat exchanger 7. As described above, the load heat exchanger 7 includes two load heat exchangers, the first load heat exchanger 7a and the second load heat exchanger 7b, and the first load heat exchanger 7a and Since the second load heat exchanger 7b is provided in parallel, the downstream portion of the fourth flow passage portion R4 in the water flow direction is branched into two branch flow passage portions. The flow path part is connected to the first load heat exchanger 7a, and the other branch flow path part is connected to the second load heat exchanger 7b. The fifth flow path portion R5 is configured to connect the load heat exchanger 7 and the heat pump heating type heat exchanger 5. As described above, since the first load heat exchanger 7a and the second load heat exchanger 7b are provided in parallel, the fifth flow path portion R5 includes the first load heat exchanger 7a and the second load heat exchanger. Two branch flow path portions connected separately to the exchanger 7b merge into one flow path portion and are connected to the heat pump heating type heat exchanger 5. A branch flow passage portion connected to the first load heat exchanger 7a in the fifth flow passage portion R5 is provided with a second on-off valve K2, and the second load heat exchanger 7b is provided in the fifth flow passage portion R5. The branch channel portion connected to is provided with a third on-off valve K3. By controlling the opening / closing operation of the second on-off valve K2 and the third on-off valve K3, the water is supplied to the first load heat exchanger 7a and the water is supplied to the second load heat exchanger 7b. It is configured to be switchable. 6th flow-path part R6 is comprised so that the site | part between the 1st on-off valve K1 in the heat pump heating type heat exchanger 5 and 2nd flow-path part R2 and the burner heating type heat exchanger 6 may be connected, A circulation pump 3 is provided at an intermediate position. The seventh flow path part R7 has a middle part of the first flow path part R1 and a middle part of the fifth flow path part R5 (the flow of water more than the part where the two branch flow path parts merge into one flow path part. The first proportional valve H <b> 1 is provided at a midway portion thereof.

  As shown in FIG. 1, the first water channel W1 includes a first flow path part R1, a hot water supply tank 2, a second flow path part R2, a burner heating type heat exchanger 6, a third flow path part R3, and a fourth flow path. It is comprised by site | part R4, the load heat exchanger 7, 5th flow-path part R5, the heat pump heating type heat exchanger 5, and 6th flow-path part R6. The first flow path part R1 is connected to the lower part of the hot water supply tank 2, and the pressure of clean water supplied in the first flow path part R1 acts on the hot water supply tank 2. And since the 2nd flow-path part R2 is connected to the upper part of the hot water supply tank 2, the 3rd flow-path part R3 is connected to the 2nd flow-path part R2 via the burner heating type heat exchanger 6. Also, the pressure of clean water is acting on the second flow path part R2 and the third flow path part R3. Thereby, by opening the hot water tap at the hot water use location 1, water is taken out from the upper part of the hot water tank 2 to the second flow path part R2 by the pressure of the hot water, and the taken out water is burner heating type heat exchange. It is supplied to the hot water supply utilization point 1 via the vessel 6 and the third flow path part R3. And by operating the circulation pump 3, the water circulated through the burner heating type heat exchanger 6, the load heat exchanger 7, and the heat pump heating type heat exchanger 5 with the pressure of the circulation pump 3 is also used. Supplied to location 1. In this way, the first water channel W1 is configured to be able to supply water to the hot water supply use location 1 by using not only the pressure of clean water but also the pressure of the circulation pump 3.

  As shown in FIG. 2, the second water channel W2 includes a part of the burner heating type heat exchanger 6 and the third flow path part R3 (from the connection point between the burner heating type heat exchanger 6 and the fourth flow path part R4. To the connection portion), the fourth flow passage portion R4, the load heat exchanger 7, the fifth flow passage portion R5, the heat pump heating type heat exchanger 5, the sixth flow passage portion R6, and the second flow passage portion. Part of R2 (a part between a connection part with the sixth flow path part R6 and a connection part with the burner heating type heat exchanger 6).

  As shown in FIG. 3, the third water channel W3 is a part of the hot water supply tank 2 and a part of the first flow path part R1 (the part between the connection point of the hot water supply tank 2 and the connection point of the seventh flow path part R7. ), A part of the seventh flow path part R7 and a part of the fifth flow path part R5 (a part between the connection point of the seventh flow path part R7 and the connection point of the heat pump heating type heat exchanger 5) and the heat pump heating. It comprises a heat exchanger 5, a sixth flow path part R 6, and a part of the second flow path part R 2 (parts between the connection point with the sixth flow path part R 6 and the connection point with the hot water tank 2). Has been.

  In the heat medium supply device according to the present invention, the first water channel W1 and the second water channel W2 are a part of the second flow path part R2, the burner heating heat exchanger 6, a part of the third flow path part R3, the first 4 flow path part R4, load heat exchanger 7, 5th flow path part R5, heat pump heating type heat exchanger 5, and 6th flow path part R6 (part shown with the thick line in both FIG.1 and FIG.2) ) And the water channel including the circulation pump 3, the burner heating type heat exchanger 6, the load heat exchanger 7, and the heat pump heating type heat exchanger 5 is configured at least in common. The second water channel W2 and the third water channel W3 are a part of the fifth flow path part R5, the heat pump heating type heat exchanger 5, and the sixth flow path part R6 (shown in bold lines in both FIGS. 2 and 3). The water channel including the heat pump heating type heat exchanger 5 is at least commonly configured. The first water channel W1 and the third water channel W3 are a part of the first channel part R1, a hot water tank 2, a part of the second channel part R2, a part of the fifth channel part R5, a heat pump heating type heat exchange. And the water channel including the hot water tank 2 and the water channel including the heat pump heating type heat exchanger 5 are the same. It is at least commonly configured. Thus, in the heat medium supply device according to the present invention, there is a common flow path portion among the first water channel W1, the second water channel W2, and the third water channel W3, and the piping becomes simple and simple. And, without adopting a structure such as a three-fluid heat exchanger having a complicated structure as a heat exchanger, a single circulation pump 3, a single heat pump heating type heat exchanger 5, a single burner heating type heat exchange The number of circulation pumps and heat exchangers can be reduced as much as possible, and the configuration can be simplified and the cost can be reduced.

  An operation control means 19 having a computer for controlling the operation of the heat medium supply device is provided. The operation control means 19 is a manually operated remote controller for the heat medium supply device that commands the operation of the heat medium supply device. Various types of information can be communicated with (not shown). The remote control for the heating medium supply device is provided in each of the kitchen and bathroom, for example, and can set the hot water supply set temperature, etc., and can request operation requests of various operations by turning on various switches. ing. The operation control means 19 is configured to be able to communicate various types of information with an artificially operated heating terminal remote controller that commands the operation of the heating terminal 12.

The operation control means 19 is in a controllable state when the operation switch of the remote controller for the heat medium supply device is turned ON, and when the hot water tap at the hot water supply use location 1 is opened, the hot water supply operation for supplying hot water to the hot water use usage location 1 Execute. Then, the operation control means 19 is, for example, the amount of hot water stored in the hot water supply tank 2 is equal to or less than the set amount, or is in the heat storage time zone that is a set time before the hot water supply time zone in which the hot water supply location 1 is supplied with hot water. When the heat storage conditions such as the above are satisfied, the heat storage operation for storing heat in the hot water supply tank 2 is executed on the assumption that there is an operation request for the heat storage operation. Further, the operation control means 19 executes the heating operation when the heating operation switch of the remote control for the heating terminal is turned ON and an operation request is requested from the heating terminal 12, and the remedy switch is turned ON and the memorial request is issued. Carry out memorial operation when requested. Here, the heating operation and the memorial operation correspond to the heat consumption operation.
Hereinafter, each operation will be described.

(Heat storage operation)
As shown in FIG. 3, the operation control means 19 switches the heat pump device 4 to the operating state, switches the burner combustion device N to the non-burning state, operates the circulation pump 3, and operates the first on-off valve K1 and the first proportionality. The valve H1 is opened. Thereby, the operation control means 19 takes out the water from the lower part of the hot water supply tank 2 to the first flow path part R1 by the pressure of the circulation pump 3 through the third water path W3, and takes the taken-out water into the seventh flow path part R7. And the heat pump heating type heat exchanger 5 via the fifth flow path part R5 and heated, and the heated water is supplied to the hot water supply tank via the sixth flow path part R6 and the second flow path part R2. Return to the top of 2. In this way, the water taken out from the hot water supply tank 2 is heated by the heat pump heating type heat exchanger 5 to become hot water, and the hot water is returned to the hot water supply tank 2 to store heat in the hot water supply tank 2. Here, the operation control means 19 adjusts the rotational speed of the circulation pump 3 and the opening of the first proportional valve H1 so that the temperature of the hot water returned to the upper part of the hot water supply tank 2 becomes a predetermined temperature, and heat pump heating type heat The amount of water supplied to the exchanger 5 is adjusted.

(Hot water operation)
In this hot water supply operation, as shown in FIG. 1, the operation control means 19 opens the first on-off valve K1 to open the hot water tap at the hot water use location 1 so that the water supply pressure is increased. The water is taken out from the upper part of the hot water supply tank 2 to the second flow path part R2, the taken-out water is supplied to the burner heating type heat exchanger 6 and heated, and the heated water is supplied to the third flow path part R3. The hot water supply location 1 is supplied. Further, the operation control means 19 operates the circulation pump 3 and supplies water from the fourth flow path portion R4 to both or one of the first load heat exchanger 7a and the second load heat exchanger 7b. The opening / closing operation of the second opening / closing valve K2 and the third opening / closing valve K3 is controlled. Accordingly, water is circulated through the burner heating heat exchanger 6, the load heat exchanger 7, and the heat pump heating heat exchanger 5 with the pressure of the circulation pump 3. Here, regarding the opening / closing operation of the second opening / closing valve K2 and the third opening / closing valve K3, in FIG. 1, the second opening / closing is performed so as to supply water from the fourth flow path part R4 to one of the first load heat exchangers 7a. The case where the opening / closing operation | movement of the valve K2 and the 3rd on-off valve K3 is controlled is shown.

  In this way, in the hot water supply operation, the operation control means 19 supplies the water in the hot water tank 2 to the hot water use location 1 with the pressure of the clean water through the first water channel W1, and the burner heating type with the pressure of the circulation pump 3 Water circulated through the heat exchanger 6, the load heat exchanger 7, and the heat pump heating type heat exchanger 5 is supplied to the hot water supply utilization location 1. Thereby, not only the water taken out from the hot water supply tank 2 but also the water circulated through the burner heating type heat exchanger 6, the load heat exchanger 7 and the heat pump heating type heat exchanger 5 are used in the hot water supply use place 1. Therefore, it is possible to secure a sufficient amount of water as the amount of water to be supplied to the hot water supply use location 1. Moreover, since the water taken out from the hot water supply tank 2 is mixed with the water heated in the burner heating type heat exchanger 6 and the mixed water is supplied to the burner heating type heat exchanger 6, the burner heating type The temperature of the water supplied to the heat exchanger 6 becomes a relatively stable temperature, and as a result, it is possible to stably supply the water at the hot water supply set temperature required at the hot water supply use location 1.

  Here, although illustration is omitted, when the temperature of the water supplied to the hot water supply usage location 1 is higher than the hot water supply set temperature required at the hot water usage usage location 1, the operation control means 19 A three-way valve for mixing with clean water, which is installed between the connection point of the third flow path part R3 with the fourth flow path part R4 and the hot water supply use part 1, is operated, and the temperature of the mixed water is used for hot water supply. The amount of mixing with clean water by the three-way valve is adjusted so that the hot water supply set temperature required at the location 1 is obtained.

(Heating operation)
As shown in FIG. 2, the operation control means 19 operates the circulation pump 3 and supplies the second on-off valve K2 and the second valve so as to supply water from the fourth flow path portion R4 to the first load heat exchanger 7a. The opening / closing operation of the 3 on-off valve K3 is controlled. Thereby, the water is circulated by the pressure of the circulation pump 3 through the burner heating type heat exchanger 6, the first load heat exchanger 7a, and the heat pump heating type heat exchanger 5 by the second water passage W2.

  Then, the operation control means 19 switches the burner combustion device N between the combustion state and the non-combustion state in a state where water is circulated in the second water passage W2, and the heat pump device 4 is switched between the operation state and the non-operation state. By switching to, the burner heating state in which the water heated by the burner heating type heat exchanger 6 is supplied to the first load heat exchanger 7a and the water heated by the heat pump heating type heat exchanger 5 are converted to the first load heat exchange. It is configured to be switchable to a heat pump heating state supplied to the vessel 7a. Then, when performing the heating operation, the operation control means 19 respectively switches the burner heating state and the heat pump heating state to the heat load required in the first load heat exchanger 7a. The primary energy consumption amount is calculated, and the calculated primary energy consumption amount is switched to the smaller one.

Regarding how to obtain the primary energy consumption when switching to the burner heating state, the heat load required in the first load heat exchanger 7a is divided by the conversion efficiency to cover the heat load. Demand gas demand. Here, the conversion efficiency is the conversion efficiency when water is heated by the burner heating type heat exchanger 6 after switching to the burner heating state. And the calculated | required gas demand is converted into the primary energy consumption using a predetermined conversion value.
The primary energy consumption when switching to the heat pump heating state is calculated by dividing the heat load required by the first load heat exchanger 7a by the COP (coefficient of performance). Demand electricity demand to cover. Here, COP uses COP when it switches to a heat pump heating state and water is heated with the heat pump heating type heat exchanger 5. FIG. And the calculated | required electricity demand is converted into the primary energy consumption using a predetermined conversion value.

  As shown in FIG. 2, when switching to the heat pump heating state, the operation control means 19 switches the burner combustion device N to the non-burning state, switches the heat pump device 4 to the operating state, and the first heat medium circulation pump 15. Is activated. Thereby, water is heated in the heat pump heating type heat exchanger 5 to become warm water, and the warm water is the sixth flow path part R6, the second flow path part R2, the burner heating type heat exchanger 6, the third flow path part. The heat medium in the first heat medium circulation path 13 is heated by being supplied to the first load heat exchanger 7a via R3 and the fourth flow path part R4. At this time, since the burner combustion apparatus N is switched to the non-burning state, the burner heating heat exchanger 6 does not heat water. The heat medium heated in the first load heat exchanger 7 a is supplied to the heating terminal 12 through the first heat medium circulation path 13 and is heated in the heating terminal 12.

On the other hand, when switching to the burner heating state, compared with the case of switching to the heat pump heating state shown in FIG. 2, the part through which water and heat medium flow is the same, and the state of the burner combustion device N and the heat pump device 4 Are different from each other, and the illustration is omitted.
The operation control means 19 switches the burner combustion device N to the combustion state, switches the heat pump device 4 to the non-operation state, and operates the first heat medium circulation pump 15. Thereby, water is heated in the burner heating type heat exchanger 6 to become warm water, and the warm water is supplied to the first load heat exchanger 7a via the third flow path part R3 and the fourth flow path part R4. The heating medium in the first heating medium circulation path 13 is heated. At this time, since the heat pump device 4 is switched to the non-operating state, water is not heated in the heat pump heating type heat exchanger 5. The heat medium heated in the first load heat exchanger 7 a is supplied to the heating terminal 12 by the first heat medium circulation path 13 and is heated in the heating terminal 12.

(Memorial operation)
In the heating operation described above, the operation control means 19 controls the opening / closing operations of the second on-off valve K2 and the third on-off valve K3 so as to supply water from the fourth flow path part R4 to the first load heat exchanger 7a. However, in this chasing operation, the operation control means 19 supplies the second on-off valve K2 and the third on-off valve K3 so as to supply water from the fourth flow path portion R4 to the second load heat exchanger 7b. The point of controlling the opening / closing operation is different from that of the above-described heating operation, so that the illustration will be omitted briefly.

  Similarly to the heating operation described above, the operation control means 19 operates the circulation pump 3 and supplies the second on-off valve K2 and the water from the fourth flow path portion R4 to the second load heat exchanger 7b. The opening / closing operation of the third opening / closing valve K3 is controlled. Then, the operation control means 19 switches the burner combustion device N between the combustion state and the non-combustion state and switches the heat pump device 4 between the operation state and the non-operation state, thereby heating the burner heating type heat exchanger 6. It is possible to switch between a burner heating state in which the water is supplied to the second load heat exchanger 7b and a heat pump heating state in which the water heated in the heat pump heating type heat exchanger 5 is supplied to the second load heat exchanger 7b. ing. And in performing a memorial operation, the operation control means 19 is the case where it switches to a burner heating state with respect to the heat load requested | required by the 2nd load heat exchanger 7b, and the case where it switches to a heat pump heating state. Each primary energy consumption is determined, and the calculated primary energy consumption is switched to a smaller one.

  As described above, the heat medium supply device according to the present invention includes a heat storage operation, a hot water supply operation, a heating operation in a heat pump heating state, a heating operation in a burner heating state, a memorial operation in a heat pump heating state, and a burner heating state. Each operation of the memorial operation can be performed independently, but two operations can be performed simultaneously.

(Simultaneous operation of hot water supply operation + heating operation with heat pump heated)
When simultaneously performing the hot water supply operation and the heating operation in the heat pump heating state, as shown in FIG. 4, the operation control means 19 switches the heat pump device 4 to the operating state, switches the burner combustion device N to the combustion state, The second on-off valve K2 and the third on-off valve K3 are operated so that the circulation pump 3 and the first heat medium circulation pump 15 are operated and water from the fourth flow path part R4 is supplied to the first load heat exchanger 7a. Controls opening and closing operations. Thereby, the operation control means 19 is circulated in the first water channel W1 through the water in the hot water supply tank 2, the burner heating type heat exchanger 6, the first load heat exchanger 7a, and the heat pump heating type heat exchanger 5. In the heat pump heating state in which the water heated by the heat pump heating type heat exchanger 5 in the second water passage W2 is supplied to the first load heat exchanger 7a. Heating operation can be performed simultaneously.

As shown in FIG. 4, when the hot water supply operation and the heating operation in the heat pump heating state are simultaneously performed, the temperature of the water supplied to the heat pump heating heat exchanger 5 gradually increases. The temperature of water supplied to the heat pump heating type heat exchanger 5 may be higher than a predetermined temperature (for example, 40 ° C.). As described above, when the temperature of the water supplied to the heat pump heating type heat exchanger 5 is higher than a predetermined temperature (for example, 40 ° C.), the COP (coefficient of performance) of the heat pump device 4 is lowered. If the operation of the heat pump device 4 is continued in a state where the temperature is lowered, the energy efficiency is lowered.
Therefore, when the hot water supply operation and the heating operation in the heat pump heating state are performed simultaneously, when the temperature of the water supplied to the heat pump heating type heat exchanger 5 becomes higher than a predetermined temperature (for example, 40 ° C.), FIG. As shown, the operation control means 19 opens the first proportional valve H1. Here, although illustration is abbreviate | omitted about the temperature of the water supplied to the heat pump heating type heat exchanger 5, the temperature of water is detected in the entrance site | part of the heat pump heating type heat exchanger 5 in 5th flow-path part R5. A temperature sensor is provided, and the temperature detected by this temperature sensor is the temperature of the water supplied to the heat pump heating type heat exchanger 5. Thereby, the water supplied through the first flow path part R1 and the seventh flow path part R7 is mixed with the water supplied to the heat pump heating heat exchanger 5 in the fifth flow path part R5, The temperature of the water supplied to the heat pump heating type heat exchanger 5 is lowered. And the operation control means 19 adjusts the opening degree of the 1st proportional valve H1 so that the temperature of the water supplied to the heat pump heating type heat exchanger 5 may become below predetermined temperature (for example, 40 degreeC). Thus, when the hot water supply operation which supplies water to the hot-water supply utilization location 1 is performed in the 1st water channel W1, and the heat pump apparatus 4 is switched to an operation state, it is supplied to the heat pump heating type heat exchanger 5. When the temperature of the water becomes higher than a predetermined temperature (for example, 40 ° C.), the water supplied to the heat pump heating type heat exchanger 5 is supplied with water, and the temperature of the water supplied to the heat pump heating type heat exchanger 5 is set to the predetermined temperature. A water supply means 20 that can be adjusted below (for example, 40 ° C.) is provided. The water supply means 20 includes a part of the first flow path part R1, a seventh flow path part R7, a first proportional valve H1, and an operation control means 19. By providing this water supply means 20, it is possible to prevent the operation of the heat pump device 4 from being continued in a state where the COP (coefficient of performance) is lowered, and to prevent the energy efficiency from being lowered.

(Simultaneous operation of hot water supply operation + heating operation with burner heating)
In the case where the hot water supply operation and the heating operation in the burner heating state are performed simultaneously, water or a heat medium flows as compared with the case where the hot water supply operation and the heating operation in the heat pump heating state shown in FIG. 4 are performed simultaneously. Since the parts are the same and only the states of the burner combustion apparatus N and the heat pump apparatus 4 are different, the description is omitted.
The operation control means 19 switches the heat pump device 4 to the non-operating state, switches the burner combustion device N to the combustion state, operates the circulation pump 3 and the first heat medium circulation pump 15, and outputs from the fourth flow path part R4. The opening / closing operations of the second on-off valve K2 and the third on-off valve K3 are controlled so as to supply water to the first load heat exchanger 7a. Thereby, the operation control means 19 is circulated in the first water channel W1 through the water in the hot water supply tank 2, the burner heating type heat exchanger 6, the first load heat exchanger 7a, and the heat pump heating type heat exchanger 5. In the burner heating state in which the water heated by the burner heating type heat exchanger 6 in the second water passage W2 is supplied to the first load heat exchanger 7a. Heating operation can be performed simultaneously.

(Simultaneous operation of heat storage operation + heating operation in heat pump heating state)
When the heat storage operation and the heating operation in the heat pump heating state are performed simultaneously, the operation control means 19 switches the heat pump device 4 to the operating state and switches the burner combustion device N to the non-burning state as shown in FIG. The second on-off valve K2 and the third on-off valve K3 are operated so that the circulation pump 3 and the first heat medium circulation pump 15 are operated and the water from the fourth flow path part R4 is supplied to the first load heat exchanger 7a. The first on-off valve K1 and the first proportional valve H1 are opened. Thereby, the heat storage operation which supplies the water heated by the heat pump heating type heat exchanger 5 to the hot water supply tank 2 to store heat in the hot water supply tank 2, and the water heated by the heat pump heating type heat exchanger 5 The heating operation in the heat pump heating state supplied to the first load heat exchanger 7a can be performed simultaneously.

(Simultaneous operation of heat storage operation + heating operation with burner heating)
In the case where the heat storage operation and the heating operation in the burner heating state are performed simultaneously, water or a heat medium flows as compared to the case where the heat storage operation and the heating operation in the heat pump heating state shown in FIG. 6 are performed simultaneously. Since the parts are the same and only the states of the burner combustion apparatus N and the heat pump apparatus 4 are different, the description is omitted.
The operation control means 19 switches the heat pump device 4 to the operating state, switches the burner combustion device N to the combustion state, operates the circulation pump 3 and the first heat medium circulation pump 15, and supplies water from the fourth flow path part R4. Is controlled to open and close the first on-off valve K1 and the first proportional valve H1. Thereby, the heat storage operation which supplies the water heated by the heat pump heating type heat exchanger 5 to the hot water supply tank 2 and stores the heat in the hot water supply tank 2, and the water heated by the burner heating type heat exchanger 6 The heating operation in the burner heating state supplied to the first load heat exchanger 7a can be performed simultaneously.

(Simultaneous operation of hot water supply operation + memorial operation)
When the hot water supply operation and the chasing operation in the heat pump heating state are performed simultaneously, the heat pump heating type heat exchange is performed as compared with the case where the hot water supply operation and the heating operation in the heat pump heating state illustrated in FIGS. The only difference is that the water heated in the vessel 5 is supplied to the second load heat exchanger 7b. Incidentally, in this case as well, as shown in FIG. 5, when the temperature of the water supplied to the heat pump heating type heat exchanger 5 becomes higher than a predetermined temperature (for example, 40 ° C.), the water supply means 20 The water supplied to the exchanger 5 is supplied with water, and the temperature of the water supplied to the heat pump heating type heat exchanger 5 is adjustable to a predetermined temperature (for example, 40 ° C.) or less.
Even when the hot water supply operation and the chasing operation in the burner heating state are performed simultaneously, the water heated by the burner heating type heat exchanger 6 is compared with the case where the hot water supply operation and the heating operation in the burner heating state are performed simultaneously. The only difference is the supply to the second load heat exchanger 7b.

(Simultaneous operation of heat storage operation + memorial operation)
When the heat storage operation and the chasing operation in the heat pump heating state are performed simultaneously, the heat pump heating type heat exchanger 5 is compared with the case where the heat storage operation and the heating operation in the heat pump heating state shown in FIG. 6 are performed simultaneously. The only difference is that the heated water is supplied to the second load heat exchanger 7b.
Even in the case where the heat storage operation and the chasing operation in the burner heating state are performed at the same time, compared to the case where the heat storage operation and the heating operation in the burner heating state are performed at the same time, heating is performed by the burner heating type heat exchanger 6. The only difference is that water is supplied to the second load heat exchanger 7b.

  In the heat medium supply device according to the present invention, the operation control means 19 includes a heat storage operation, a hot water supply operation, a heating operation in a burner heating state, a heating operation in a heat pump heating state, a memorial operation in a burner heating state, and a heat pump heating state. In addition to the chasing operation, the high-temperature heating operation for heating the water in the hot water supply tank 2 to a high temperature is executable.

(High temperature heating operation)
In this high temperature heating operation, as shown in FIG. 7, the operation control means 19 switches the burner combustion device N to the combustion state, switches the heat pump device 4 to the non-operation state, operates the circulation pump 3, and Controlling the opening / closing operation of the second on-off valve K2 and the third on-off valve K3 so as to supply water from the road part R4 to both or one of the first load heat exchanger 7a and the second load heat exchanger 7b, The 1 on-off valve K1 and the first proportional valve H1 are opened. Accordingly, the second water passage W2 and the third water passage W3 circulate the water so that the water taken out from the hot water supply tank 2 is heated by the burner heating type heat exchanger 6 and the heated water is returned to the hot water supply tank 2. It is configured freely. Therefore, since the water in the hot water supply tank 2 can be sterilized and disinfected at a high temperature, propagation of Legionella bacteria and the like can be appropriately prevented.

[Second Embodiment]
In the second embodiment, as shown in FIG. 8, in the first embodiment, at least the burner heating type heat exchanger 6 is bypassed and the hot water supply tank 2 is used with the pressure of clean water without using the pressure of the circulation pump 3. It is comprised so that the 1st bypass water channel V1 which supplies the water taken out from the hot water supply location 1 directly can be formed.

  In the second embodiment, as described in the first embodiment, in addition to the first to seventh flow path portions R1 to R7, the hot water supply tank 2 and the sixth flow path portion R6 in the second flow path portion R2. And a first bypass flow path part B1 for connecting a part between the connection part to the fourth flow path part R4 in the third flow path part R3 and a part between the hot water supply use part 1 and the third flow path part R3. ing.

  In the said 1st Embodiment, although the circulation pump 3 was arrange | positioned in 6th flow-path part R6, in this 2nd Embodiment, the circulation pump 3 is arrange | positioned in 2nd flow-path part R2. The circulation pump 3 is disposed in a portion between the connection portion to the sixth flow passage portion R6 and the burner heating heat exchanger 6 in the second flow passage portion R2. A second proportional valve H2 is provided in a portion between the connection location to the first bypass flow passage portion B1 and the connection location to the sixth flow passage portion R6 in the second flow passage portion R2, and the sixth flow passage is provided. A third proportional valve H3 is provided in the middle of the part R6. In addition, a fourth proportional valve H4 is provided in a portion between the connection portion to the fourth flow passage portion R4 and the connection portion from the first bypass flow passage portion B1 in the third flow passage portion R3. Further, in the first embodiment, the first proportional valve H1 is provided in the seventh flow path part R7. However, the first proportional valve H1 is omitted, and the first flow path part R1 and the seventh flow path part. The 1st switching valve S1 is provided in the connection location with R7.

  In the second embodiment, as described above, the first bypass water channel V1 is provided as shown in FIG. 8, but, as in the first embodiment, the first water channel W1 (see FIG. 9), A two water channel W2 (see FIG. 10) and a third water channel W3 (see FIG. 11) are provided. As shown in FIG. 8, the first bypass water channel V1 includes a first flow path part R1, a hot water supply tank 2, a part of the second flow path part R2, a first bypass flow path part B1, and a third flow path part R3. It consists of a part. As shown in FIG. 9, the first water channel W1 includes a first flow path part R1, a hot water supply tank 2, a second flow path part R2, a burner heating type heat exchanger 6, and a third flow path part R3. . As shown in FIG. 10, the second water channel W2 includes the burner heating type heat exchanger 6, a part of the third flow path part R3, the fourth flow path part R4, the load heat exchanger 7, and the fifth flow path part R5. And a heat pump heating type heat exchanger 5, a sixth flow path part R6, and a part of the second flow path part R2. As shown in FIG. 11, the third water channel W3 includes a hot water tank 2, a part of the first flow path part R1, a seventh flow path part R7, a part of the fifth flow path part R5, a heat pump heating type heat exchanger. 5, the sixth flow path part R6, the second flow path part R2, the burner heating type heat exchanger 6, a part of the third flow path part R3, and the first bypass flow path part B1. Accordingly, the third water channel W3 includes a part of the first flow path part R1, a part of the second flow path part R2, and the first bypass flow path part B1 in the first bypass water path V1 shown in FIG. Therefore, the 3rd waterway W3 is comprised from a part of 1st bypass waterway V1 at least.

  Also in the second embodiment, since the operation control means 19 can execute the heat storage operation, the hot water supply operation, the heating operation, the memorial operation, and the high temperature heating operation as in the first embodiment, FIG. Each operation will be described with reference to FIG.

(Heat storage operation)
As shown in FIG. 11, the operation control means 19 switches the heat pump device 4 to the operating state, switches the burner combustion device N to the non-combusting state, operates the circulation pump 3, and connects the hot water supply tank 2 to the first flow path portion. The first switching valve S1 is switched to a state in which the water taken out to R1 is supplied to the seventh flow path part R7, and the second proportional valve H2, the third proportional valve H3, and the fourth proportional valve H4 are opened. The operation control means 19 takes out water from the lower part of the hot water supply tank 2 to the first flow path part R1 by the pressure of the circulation pump 3 through the third water channel W3, and extracts the extracted water from the seventh flow path part R7 and the fifth flow path R5. The heat pump heating type heat exchanger 5 is supplied to the heat pump heating type heat exchanger 5 through the flow path part R5 and heated, and the heated water is supplied to the sixth flow path part R6, the second flow path part R2, the burner heating type heat exchanger 6, It is returned to the upper part of the hot water supply tank 2 via the third flow path part R3, the first bypass flow path part B1, and the second flow path part R2. A part of the water that has passed through the first bypass flow path part B1 is supplied to the upper part of the hot water tank 2 via the second flow path part R2, and the remaining part of the water passes through the second flow path part R2. The burner heating type heat exchanger 6 is supplied. In this way, the water taken out from the hot water supply tank 2 is heated by the heat pump heating type heat exchanger 5 to become hot water, and the hot water is returned to the hot water supply tank 2 to store heat in the hot water supply tank 2. Here, the operation control means 19 adjusts the rotational speed of the circulation pump 3 and the opening of the third proportional valve H3 so that the temperature of the hot water returned to the upper part of the hot water supply tank 2 becomes a predetermined temperature, and heat pump heating type heat The amount of water supplied to the exchanger 5 is adjusted.

(Hot water operation)
In this hot water supply operation, as shown in FIG. 8, the operation control means 19 bypasses the burner heating type heat exchanger 6, and the water taken out from the hot water supply tank 2 with the pressure of clean water without using the pressure of the circulation pump 3. As shown in FIG. 9, the water taken out from the hot water tank 2 by the pressure of the circulating pump 3 in addition to the pressure of the clean water passes through the burner heating type heat exchanger 6. Thus, it is configured to be switchable to a non-bypass state to be supplied to the hot water supply utilization location 1. Then, the operation control means 19 switches the temperature of the water in the hot water supply tank 2 to a temperature equivalent to the hot water supply set temperature required at the hot water use location 1 or a temperature higher than the hot water set temperature by a predetermined temperature. When the temperature is higher than the set temperature, the state is switched to the bypass state. When the temperature of the water in the hot water supply tank 2 is lower than the switch set temperature, the state is switched to the non-bypass state. Here, although the illustration of the temperature of the water in the hot water supply tank 2 is omitted, a temperature sensor for detecting the temperature of the water in the upper portion of the hot water supply tank 2 is provided. The water temperature.

When switching to the bypass state, as shown in FIG. 8, the operation control means 19 keeps the second proportional valve H2 and the fourth proportional valve H4 closed, and the first bypass water channel V1 causes the The water taken out from the hot water supply tank 2 at a pressure of 2 is supplied to the hot water supply use location 1 by bypassing the burner heating type heat exchanger 6.
In the case of switching to the non-bypass state, as shown in FIG. 9, the operation control means 19 opens the second proportional valve H2 and the fourth proportional valve H4 and activates the circulation pump 3 so that the hot water supply tank 2 The water taken out from the water is supplied to the burner heating type heat exchanger 6 at the second flow path part R2 by the pressure of the circulation pump 3, and the water passing through the burner heating type heat exchanger 6 is supplied to the hot water supply use point 1. is doing.

(Heating operation)
As shown in FIG. 10, the operation control means 19 operates the circulation pump 3 and supplies the second on-off valve K2 and the second valve so as to supply water from the fourth flow path portion R4 to the first load heat exchanger 7a. The opening / closing operation of the third opening / closing valve K3 is controlled, the second proportional valve H2 and the fourth proportional valve H4 are kept closed, and the third proportional valve H3 is opened. Thereby, the water is circulated by the pressure of the circulation pump 3 through the burner heating type heat exchanger 6, the first load heat exchanger 7a, and the heat pump heating type heat exchanger 5 by the second water passage W2. As in the first embodiment, the operation control means 19 switches the burner combustion device N between the combustion state and the non-combustion state in a state where water is circulated in the second water passage W2, and the heat pump device. 4 can be switched between a burner heating state and a heat pump heating state by switching between an operating state and a non-operating state, and with respect to the thermal load required by the first load heat exchanger 7a, The primary energy consumption amount in each of the case of switching to the heating state and the case of switching to the heat pump heating state is obtained, and the obtained primary energy consumption amount is switched to the smaller one.

  In the case of switching to the heat pump heating state, as shown in FIG. 10, the operation control means 19 switches the burner combustion device N to the non-burning state, switches the heat pump device 4 to the operating state, and the first heat medium circulation pump 15. Is activated. Thereby, water is heated in the heat pump heating type heat exchanger 5 to become warm water, and the warm water is the sixth flow path part R6, the second flow path part R2, the burner heating type heat exchanger 6, the third flow path part. The heat medium in the first heat medium circulation path 13 is heated by being supplied to the first load heat exchanger 7a via R3 and the fourth flow path part R4. At this time, since the burner combustion apparatus N is switched to the non-burning state, the burner heating heat exchanger 6 does not heat water. The heat medium heated in the first load heat exchanger 7 a is supplied to the heating terminal 12 through the first heat medium circulation path 13 and is heated in the heating terminal 12.

On the other hand, in the case of switching to the burner heating state, compared with the case of switching to the heat pump heating state shown in FIG. 10, the parts through which water and heat medium flow are the same, and the states of the burner combustion device N and the heat pump device 4 are the same. Are different from each other, and the illustration is omitted.
The operation control means 19 switches the burner combustion device N to the combustion state, switches the heat pump device 4 to the non-operation state, and operates the first heat medium circulation pump 15. Thereby, water is heated in the burner heating type heat exchanger 6 to become warm water, and the warm water is supplied to the first load heat exchanger 7a via the third flow path part R3 and the fourth flow path part R4. The heating medium in the first heating medium circulation path 13 is heated. At this time, since the heat pump device 4 is switched to the non-operating state, water is not heated in the heat pump heating type heat exchanger 5. The heat medium heated in the first load heat exchanger 7 a is supplied to the heating terminal 12 by the first heat medium circulation path 13 and is heated in the heating terminal 12.

(Memorial operation)
As in the first embodiment, in the chasing operation, the operation control means 19 supplies the second on-off valve K2 and the second valve so as to supply water from the fourth flow path portion R4 to the second load heat exchanger 7b. Since the point which controls the opening / closing operation | movement of 3 on-off valve K3 is only different from the above-mentioned heating operation, description is abbreviate | omitted.

(Simultaneous operation of hot water supply operation in bypass state + heating operation in heat pump heating state)
When the hot water supply operation in the bypass state and the heating operation in the heat pump heating state are performed simultaneously, as shown in FIG. 12, the operation control means 19 switches the heat pump device 4 to the operating state and turns off the burner combustion device N. Switching to the combustion state, operating the circulation pump 3 and the first heat medium circulation pump 15, and supplying the second on-off valve K2 and the second so as to supply water from the fourth flow path part R4 to the first load heat exchanger 7a. The opening / closing operation of the 3 opening / closing valve K3 is controlled, the first switching valve S1 is switched to the state where the hot water supply tank 2 is directly supplied with water in the first flow path part R1, and the second proportional valve H2 and the fourth proportional valve H4 are closed. Then, the third proportional valve H3 is opened. As a result, the operation control means 19 uses the hot water supply operation in which the water in the hot water supply tank 2 is bypassed the burner heating type heat exchanger 6 and supplied to the hot water use location 1 in the first bypass water channel V1, and in the second water channel W2. The heating operation in the heat pump heating state in which the water heated by the heat pump heating type heat exchanger 5 is supplied to the first load heat exchanger 7a can be performed simultaneously. In this case, the 1st bypass water channel V1 and the 2nd water channel W2 are constituted so that water can flow independently, and the supply of water to the hot water supply use location 1 by the first bypass water channel V1 and the second water channel W2 Supply of the water heated by the heat pump heating type heat exchanger 5 to the first load heat exchanger 7a can be performed simultaneously without interfering with each other.

(Simultaneous operation of hot water supply operation in bypass state + heating operation in burner heating state)
In the case where the hot water supply operation in the bypass state and the heating operation in the burner heating state are performed simultaneously, compared to the case where the hot water supply operation in the bypass state and the heating operation in the heat pump heating state shown in FIG. The parts through which water and the heat medium flow are the same, and only the states of the burner combustion apparatus N and the heat pump apparatus 4 are different.
The operation control means 19 switches the heat pump device 4 to the non-operating state, switches the burner combustion device N to the combustion state, operates the circulation pump 3 and the first heat medium circulation pump 15, and outputs from the fourth flow path part R4. The opening / closing operations of the second on-off valve K2 and the third on-off valve K3 are controlled so as to supply water to the first load heat exchanger 7a. As a result, the operation control means 19 uses the hot water supply operation in which the water in the hot water supply tank 2 is bypassed the burner heating type heat exchanger 6 and supplied to the hot water use location 1 in the first bypass water channel V1, and in the second water channel W2. The heating operation in the burner heating state in which the water heated by the burner heating type heat exchanger 6 is supplied to the first load heat exchanger 7a can be performed simultaneously.

(Simultaneous operation of hot water supply operation in non-bypass state + heating operation in heat pump heating state)
When the hot water supply operation in the non-bypass state and the heating operation in the heat pump heating state are performed simultaneously, as shown in FIG. 13, the operation control means 19 switches the heat pump device 4 to the operating state and turns the burner combustion device N on. Switching to the combustion state, operating the circulation pump 3 and the first heat medium circulation pump 15, and supplying the second on-off valve K2 and the second so as to supply water from the fourth flow path part R4 to the first load heat exchanger 7a. The opening / closing operation of the 3 on-off valve K3 is controlled, the first switching valve S1 is switched to the state where the hot water tank 2 is directly supplied with water in the first flow path part R1, the second proportional valve H2, the third proportional valve H3 and the fourth The proportional valve H4 is opened. Thereby, the operation control means 19 includes a hot water supply operation in which the water in the hot water supply tank 2 is supplied to the hot water supply use location 1 via the burner heating type heat exchanger 6 in the first water channel W1, and a heat pump in the second water channel W2. The heating operation in the heat pump heating state in which the water heated in the heating heat exchanger 5 is supplied to the first load heat exchanger 7a can be performed simultaneously.

  When the hot water supply operation in the non-bypass state and the heating operation in the heat pump heating state are performed simultaneously, the temperature of the water supplied to the heat pump heating type heat exchanger 5 gradually increases, and the heat pump heating type The temperature of the water supplied to the heat exchanger 5 may be higher than a predetermined temperature (for example, 40 ° C.). Therefore, as in the first embodiment, as shown in FIG. 14, when a hot water supply operation for supplying water to the hot water supply use location 1 is performed and the heat pump device 4 is switched to the operating state, the heat pump heating type When the temperature of the water supplied to the heat exchanger 5 becomes higher than a predetermined temperature (for example, 40 ° C.), the water supplied to the heat pump heating type heat exchanger 5 is supplied and supplied to the heat pump heating type heat exchanger 5. A water supply means 20 is provided that can adjust the temperature of the water to be adjusted to a predetermined temperature (for example, 40 ° C.) or less. That is, when the temperature of the water supplied to the heat pump heating type heat exchanger 5 becomes higher than a predetermined temperature (for example, 40 ° C.), the operation control means 19 supplies the water in the first flow path part R1 to the seventh flow path part R7. The first switching valve S1 is switched to the state of supplying to the heat pump, and the opening of the third proportional valve H3 is set so that the temperature of the water supplied to the heat pump heating type heat exchanger 5 becomes a predetermined temperature (for example, 40 ° C.) or less. It is adjusted.

(Simultaneous operation of hot water supply operation in non-bypass state + heating operation in burner heating state)
Compared to the case where the hot water supply operation in the non-bypass state and the heating operation in the burner heating state are performed simultaneously, compared to the case where the hot water supply operation in the non-bypass state and the heating operation in the heat pump heating state shown in FIG. The parts through which water and the heat medium flow are the same, and only the states of the burner combustion device N and the heat pump device 4 are different.
The operation control means 19 switches the heat pump device 4 to the non-operating state, switches the burner combustion device N to the combustion state, operates the circulation pump 3 and the first heat medium circulation pump 15, and outputs from the fourth flow path part R4. The opening / closing operations of the second on-off valve K2 and the third on-off valve K3 are controlled so as to supply water to the first load heat exchanger 7a. As a result, the operation control means 19 uses the hot water supply operation in which the water in the hot water supply tank 2 is supplied to the hot water use location 1 via the burner heating heat exchanger 6 in the first water channel W1, and the burner in the second water channel W2. The heating operation in the burner heating state in which the water heated by the heating heat exchanger 6 is supplied to the first load heat exchanger 7a can be performed simultaneously.

(Simultaneous operation of heat storage operation + heating operation in heat pump heating state)
When simultaneously performing the heat storage operation and the heating operation in the heat pump heating state, the operation control means 19 switches the heat pump device 4 to the operating state and switches the burner combustion device N to the non-burning state, as shown in FIG. The second on-off valve K2 and the third on-off valve K3 are operated so that the circulation pump 3 and the first heat medium circulation pump 15 are operated and the water from the fourth flow path part R4 is supplied to the first load heat exchanger 7a. The first switching valve S1 is switched to a state in which water taken out from the hot water supply tank 2 to the first flow path part R1 is supplied to the seventh flow path part R7, and the second proportional valve H2 and the third proportional valve are controlled. The valve H3 and the fourth proportional valve H4 are opened. Thereby, the heat storage operation which supplies the water heated by the heat pump heating type heat exchanger 5 to the hot water supply tank 2 to store heat in the hot water supply tank 2, and the water heated by the heat pump heating type heat exchanger 5 The heating operation in the heat pump heating state supplied to the first load heat exchanger 7a can be performed simultaneously. In this case, the operation control means 19 may keep the second proportional valve H2 closed for the second proportional valve H2 instead of opening the second proportional valve H2.

(Simultaneous operation of heat storage operation + heating operation with burner heating)
In the case where the heat storage operation and the heating operation in the burner heating state are performed at the same time, compared with the case where the heat storage operation and the heating operation in the heat pump heating state shown in FIG. Are the same, and only the states of the burner combustion apparatus N and the heat pump apparatus 4 are different, so that the illustration is omitted.
The operation control means 19 switches the heat pump device 4 to the operating state, switches the burner combustion device N to the combustion state, operates the circulation pump 3 and the first heat medium circulation pump 15, and supplies water from the fourth flow path part R4. Is controlled to open and close the second on-off valve K2 and the third on-off valve K3 so that the water taken out from the hot water tank 2 to the first flow path part R1 is supplied to the seventh flow path 7a. The first switching valve S1 is switched to the state to be supplied to the part R7, and the second proportional valve H2, the third proportional valve H3, and the fourth proportional valve H4 are opened. Thereby, the heat storage operation which supplies the water heated by the heat pump heating type heat exchanger 5 to the hot water supply tank 2 and stores the heat in the hot water supply tank 2, and the water heated by the burner heating type heat exchanger 6 The heating operation in the burner heating state supplied to the first load heat exchanger 7a can be performed simultaneously.

(Simultaneous operation of hot water supply operation + memorial operation)
When the hot water supply operation in the bypass state and the memorial operation in the heat pump heating state are performed simultaneously, the heat pump is compared with the case where the hot water supply operation in the bypass state and the heating operation in the heat pump heating state are performed simultaneously as shown in FIG. The only difference is that the water heated by the heating heat exchanger 5 is supplied to the second load heat exchanger 7b.
When simultaneously performing the hot water supply operation in the non-bypass state and the chasing operation in the heat pump heating state, simultaneously performing the hot water supply operation in the non-bypass state and the heating operation in the heat pump heating state shown in FIGS. 13 and 14 The difference is that water heated by the heat pump heating type heat exchanger 5 is supplied to the second load heat exchanger 7b. Incidentally, also in this case, as shown in FIG. 14, when the temperature of the water supplied to the heat pump heating type heat exchanger 5 becomes higher than a predetermined temperature (for example, 40 ° C.), the water supply means 20 The water supplied to the exchanger 5 is supplied with water, and the temperature of the water supplied to the heat pump heating type heat exchanger 5 is adjustable to a predetermined temperature (for example, 40 ° C.) or less.
Compared with simultaneous hot water supply operation in the bypass state and heating operation in the burner heating state, both the hot water supply operation in the bypass state and the memorial operation in the burner heating state are performed simultaneously. The only difference is that the water heated in the vessel 6 is supplied to the second load heat exchanger 7b.
Burner heating type when hot water supply operation in a non-bypass state and a chasing operation in a burner heating state are performed at the same time as compared with a case in which hot water supply operation in a non-bypass state and heating operation in a burner heating state are performed simultaneously. The only difference is that the water heated by the heat exchanger 6 is supplied to the second load heat exchanger 7b.

(Simultaneous operation of heat storage operation + memorial operation)
In the case where the heat storage operation and the chasing operation in the heat pump heating state are performed simultaneously, the heat pump heating type heat exchanger 5 is compared with the case where the heat storage operation and the heating operation in the heat pump heating state shown in FIG. 15 are performed simultaneously. The only difference is that the heated water is supplied to the second load heat exchanger 7b.
Even in the case where the heat storage operation and the chasing operation in the burner heating state are performed at the same time, compared to the case where the heat storage operation and the heating operation in the burner heating state are performed at the same time, heating is performed by the burner heating type heat exchanger 6. The only difference is that water is supplied to the second load heat exchanger 7b.

(High temperature heating operation)
In this high temperature heating operation, as shown in FIG. 16, the operation control means 19 switches the burner combustion device N to the combustion state, switches the heat pump device 4 to the non-operation state, operates the circulation pump 3, and hot water supply tank 2. The first switching valve S1 is switched to a state where the water taken out from the first flow passage portion R1 is supplied to the seventh flow passage portion R7, and the second proportional valve H2, the third proportional valve H3, and the fourth proportional valve H4. Is opened. Thereby, the water taken out from the lower part of the hot water supply tank 2 is supplied to the first flow path part R1, the seventh flow path part R7, the fifth flow path part R5, the heat pump heating heat exchanger 5, the sixth flow path part R6, It supplies to the burner heating type heat exchanger 6 via the 2nd flow path site | part R2 in order, it heats, and the heated water is made into 3rd flow path site | part R3, 1st bypass flow path site | part B1, 2nd flow. It returns to the upper part of the hot water supply tank 2 through the order of the road part R2. A part of the water that has passed through the first bypass flow path part B1 is supplied to the upper part of the hot water tank 2 via the second flow path part R2, and the remaining part of the water passes through the second flow path part R2. The burner heating type heat exchanger 6 is supplied. As described in the above-described heat storage operation, the third water channel W3 is composed of at least a part of the first bypass water channel V1, but from at least a part of the first bypass water channel V1, as shown in FIG. The configured third water channel W3 is configured to freely circulate the water so that the water taken out from the hot water supply tank 2 is heated by the burner heating type heat exchanger 6 and the heated water is returned to the hot water supply tank 2. ing. And since the water heated by the burner heating type heat exchanger 6 is returned to the hot water supply tank 2, the water in the hot water supply tank 2 can be sterilized and disinfected at a high temperature, so that breeding of Legionella bacteria and the like is appropriately prevented. be able to.

[Third Embodiment]
This 3rd Embodiment is another embodiment of the arrangement | positioning form of the circulation pump 3 in the said 1st and 2nd embodiment. Since other configurations are the same as those of the first and second embodiments, description of other configurations will be omitted, and description will be made focusing on an arrangement form of the circulation pump 3.

  In the first embodiment, as shown in FIG. 1, the circulation pump 3 is arranged in the sixth flow path part R6. However, as shown in FIG. 17, the circulation pump 3 is arranged in the fifth flow path part R5. can do. The circulation pump 3 is disposed in a portion between the connection portion from the seventh flow passage portion R7 and the heat pump heating heat exchanger 5 in the fifth flow passage portion R5. Thereby, 5th flow-path part R5 is comprised so that the circulation pump 3 may be provided in the middle part, and the load heat exchanger 7 and the heat pump heating type heat exchanger 5 may be connected.

In the second embodiment, as shown in FIG. 8, the circulation pump 3 is arranged in the second flow path part R2. However, as shown in FIG. 18, the circulation pump 3 is arranged in the third flow path part R3. can do. And the circulation pump 3 is arrange | positioned in the site | part between the connection part to the burner heating type heat exchanger 6 and 4th channel site | part R4 in 3rd channel site | part R3. Thereby, 3rd flow-path site | part R3 is comprised so that the circulation pump 3 may be provided in the middle site | part, and the burner heating type heat exchanger 6 and the hot water supply utilization location 1 may be connected.
Further, as another embodiment of the arrangement form of the circulation pump 3, as shown by a dotted line in FIG. 18, a portion between the heat pump heating heat exchanger 5 and the third proportional valve H3 in the sixth flow path portion R6. The circulation pump 3 can also be arranged in the front. Further, as shown by a one-dot chain line in FIG. 18, the circulation pump 3 is arranged in a portion between the connection portion from the seventh flow passage portion R7 and the heat pump heating type heat exchanger 5 in the fifth flow passage portion R5. You can also. Thus, when the circulation pump 3 is arranged in the sixth flow path part R6 or the fifth flow path part R5, the first water path W1 is replaced with the first flow path part R1, the hot water supply tank 2, and the second flow path part. R2, burner heating type heat exchanger 6, third flow path part R3, fourth flow path part R4, load heat exchanger 7, fifth flow path part R5, heat pump heating type heat exchanger 5 and sixth flow path part And R6. Thereby, in addition to supplying the water in the hot water supply tank 2 to the hot water supply utilization point 1 by the pressure of the clean water, the burner heating type heat exchanger 6, the load heat exchanger 7 and the heat pump heating type heat are used by the pressure of the circulation pump 3. Water that is circulated through the exchanger 5 can also be supplied to the hot water supply utilization point 1.

[Fourth Embodiment]
This 4th Embodiment is another embodiment which added the structure for heating the water of the hot water supply tank 2 in the said 1st and 2nd embodiment. Since other configurations are the same as those of the first and second embodiments, description of other configurations will be omitted, and the configuration for heating the water in the added hot water supply tank 2 will be mainly described.

First, another embodiment of the heat medium supply device to which the configuration for heating the water in the hot water supply tank 2 is added in the first embodiment will be described with reference to FIG.
In this heating medium supply device, a combined heat and power supply device (not shown) that generates heat and electric power is provided, and an exhaust heat exchanger 21 that heats the water in the hot water supply tank 2 with the exhaust heat of the combined heat and power supply device is provided. Is provided. The exhaust heat exchanger 21 is disposed at a position between the connection points of the circulation pump 3 and the second flow path part R2 in the sixth flow path part R6. Here, the combined heat and power device can be applied to, for example, a combination of an engine and a generator driven by the output of the engine, or a fuel cell device. And in this heat medium supply device, the water taken out from the hot water supply tank 2 is heated by the exhaust heat of the combined heat and power supply device in the exhaust heat exchanger 21 with the pressure of the circulation pump 3, and the heated water is supplied to the hot water supply An exhaust heat heating water channel X returning to the tank 2 is provided, and this exhaust heat heating water channel X is configured to be used also as the third water channel W3. That is, both the exhaust heat heating water channel X and the third water channel W3 are the hot water supply tank 2, a part of the first flow path part R1, the seventh flow path part R7, a part of the fifth flow path part R5, a heat pump heating type. The heat exchanger 5, the sixth flow path part R6, the exhaust heat exchanger 21, and a part of the second flow path part R2 are configured in common.

  And although illustration is abbreviate | omitted, it has comprised so that the electric power which generate | occur | produced in the combined heat and power supply apparatus can be freely supplied as drive electric power of the heat pump apparatus 4, and the operation control means 19 is electric power among the electric power which a combined heat and power supply apparatus generates. By supplying at least a part of surplus power that is not consumed by a supply unit (for example, a power consuming device such as an illumination or a television) to the heat pump apparatus 4, the heat pump apparatus 4 can be operated using at least a part of the surplus power. It is configured. In this case, when surplus power is generated, for example, the operation control means 19 performs the above-described heat storage operation on the assumption that the heat storage condition is satisfied. As a result, when surplus power is generated, the surplus power is converted into heat and stored in the hot water supply tank 2, and the stored heat can be supplied to the hot water use location 1, and surplus power can be supplied to the hot water use location 1. It can be effectively used as heat that is used and energy efficiency can be improved.

  As the configuration for heating the water in the hot water supply tank 2 to be added, the configuration in which the water in the hot water supply tank 2 is heated by the exhaust heat generated in the combined heat and power supply device has been described. By providing a solar heat exchanger that heats the water in the hot water supply tank 2, the water in the hot water supply tank 2 can be heated by solar heat and stored in the hot water supply tank 2. In this case, the water taken out from the hot water supply tank 2 is heated by solar heat in the solar heat exchanger with the pressure of the circulation pump 3, and a solar heat heating channel for returning the heated water to the hot water supply tank 2 is provided. This solar heating water channel can also be configured to serve as the third water channel W3. Moreover, in addition to the exhaust heat exchanger 21, the solar heat exchanger which heats water with a solar heat is provided, and the water of the hot water supply tank 2 can also be heated with both the exhaust heat and solar heat of a cogeneration apparatus.

Next, another embodiment of the heat medium supply device to which the structure for heating the water in the hot water supply tank 2 is added in the second embodiment will be described with reference to FIG.
Similarly to FIG. 19, this heat medium supply device is also provided with a waste heat heat exchanger 21 that heats the water in the hot water supply tank 2 with the waste heat of the combined heat and power supply device. It arrange | positions in the site | part between the circulation pump 3 and the burner heating type heat exchanger 6 in flow path site | part R2. Even in this case, as in FIG. 19, the exhaust heat heating water channel X is also used as the third water channel W <b> 3. That is, both the exhaust heat heating water channel X and the third water channel W3 are the hot water supply tank 2, a part of the first flow path part R1, the seventh flow path part R7, a part of the fifth flow path part R5, a heat pump heating type. Heat exchanger 5, sixth flow path part R6, second flow path part R2, exhaust heat exchanger 21, burner heating heat exchanger 6, part of third flow path part R3, and first bypass flow It is comprised from the common structure with road part B1.

  Here, as to the arrangement form of the exhaust heat exchanger 21, as described above, not only the portion between the circulation pump 3 and the burner heating heat exchanger 6 in the second flow path portion R2, but also the dotted line in FIG. As shown, the exhaust heat exchanger 21 can be disposed in a portion between the heat pump heating type heat exchanger 5 and the third proportional valve H3 in the sixth flow path portion R6.

  Also in these cases, similarly to FIG. 19, the electric power generated in the combined heat and power supply device is configured to be freely supplied as the driving power for the heat pump device 4, and the operation control means 19 is generated by the combined heat and power supply device. By supplying at least a part of surplus power that is not consumed by a power supply unit (for example, a power consuming device such as an illumination or a television) to the heat pump device 4, the heat pump uses at least a part of the surplus power. The device 4 is configured to be operable. Furthermore, it replaces with the exhaust heat exchanger 21, the solar heat exchanger which heats the water of the hot water supply tank 2 with a solar heat is provided, or the solar heat which heats water with a solar heat in addition to the exhaust heat exchanger 21 An exchanger is provided, and the water in the hot water supply tank 2 can be heated by both exhaust heat and solar heat of the combined heat and power supply device.

  Also in the fourth embodiment, as described in the third embodiment, as shown in FIGS. 17 and 18, the arrangement form of the circulation pump 3 can be changed.

[Fifth Embodiment]
This 5th Embodiment is another embodiment of the arrangement | positioning form of the 1st load heat exchanger 7a and the 2nd load heat exchanger 7b in the said 1st and 2nd embodiment. Since other configurations are the same as those in the first and second embodiments, description of other configurations is omitted, and an arrangement configuration of the first load heat exchanger 7a and the second load heat exchanger 7b is omitted. The explanation is centered.

  In the first and second embodiments, the first load heat exchanger 7a and the second load heat exchanger 7b are provided in parallel, but in the fifth embodiment, as shown in FIG. A 1-load heat exchanger 7a and a second load heat exchanger 7b are provided in series.

  Also in the fifth embodiment, as described in the third embodiment, as shown in FIGS. 17 and 18, the arrangement form of the circulation pump 3 can be changed. Also in the fifth embodiment, as described in the fourth embodiment, as shown in FIGS. 19 and 20, a configuration for heating the water in the hot water supply tank 2 can be added.

[Sixth Embodiment]
The sixth embodiment is another embodiment of the first water channel W1 in the second embodiment. Since the other configuration is the same as that of the second embodiment, description of the other configuration is omitted, and the configuration of the first water channel W1 will be mainly described.

In the second embodiment, as shown in FIG. 9, the first water channel W <b> 1 is divided into the first flow path part R <b> 1, the hot water tank 2, the second flow path part R <b> 2, the burner heating heat exchanger 6, and the third flow path. It consists of site | part R3.
On the other hand, in the sixth embodiment, as shown in FIG. 22, the first water channel W1 includes the first flow path part R1, the hot water supply tank 2, the second flow path part R2, the burner heating type heat exchanger 6 and Third flow path part R3, seventh flow path part R7 and part of fifth flow path part R5 (parts from the connection point with seventh flow path part R7 to heat pump heating type heat exchanger 5) and heat pump It is comprised by the heating type heat exchanger 5 and 6th flow-path part R6. Thereby, the 1st water channel W1 mixes the water from 6th flow-path part R6 with the water taken out from the hot water supply tank 2 with the pressure of clean water, and the pressure of the circulation pump 3, and this mixed water is burner heating type. It is configured so as to be supplied to the hot water supply utilization point 1 via the heat exchanger 6.

  In the hot water supply operation in the non-bypass state, as shown in FIG. 22, the operation control means 19 operates the circulation pump 3 and opens the second proportional valve H2, the third proportional valve H3, and the fourth proportional valve H4. The first switching to a state in which a part of the water in the first flow path part R1 is supplied to the hot water supply tank 2 as it is and the remaining part of the water in the first flow path part R1 is supplied to the seventh flow path part R7. The valve S1 is switched. For example, when the temperature of the water in the hot water supply tank 2 is relatively high, if only the water taken out from the hot water supply tank 2 is supplied to the burner heating type heat exchanger 6, the burner combustion device N can be operated at the minimum combustion amount. Even if it is made to burn, the temperature of the water heated by the burner heating type heat exchanger 6 may be higher than the hot water supply set temperature required at the hot water supply use location 1. Therefore, as described above, the temperature of the water supplied to the burner heating type heat exchanger 6 is decreased by the first water channel W mixing the water from the sixth channel part R6 with the water taken out from the hot water supply tank 2. Can be made. Thereby, it can prevent that the temperature of the water heated with the burner heating type heat exchanger 6 becomes higher than hot water supply preset temperature, and can supply the water of hot water preset temperature stably.

  Further, instead of the one shown in FIG. 22, as shown in FIG. 23, the first water channel W1 is replaced with a first flow path part R1, a hot water supply tank 2, a second flow path part R2, and a burner heating type heat exchanger 6. The third flow path part R3, the fourth flow path part R4, the load heat exchanger 7, the fifth flow path part R5, the heat pump heating type heat exchanger 5, and the sixth flow path part R6 may be used. Thereby, the 1st water channel W1 supplies the water of the hot-water supply tank 2 to the hot-water supply utilization location 1 with the pressure of clean water, and the burner heating type heat exchanger 6, the load heat exchanger 7, and the heat pump with the pressure of the circulation pump 3 The water circulated via the heating heat exchanger 5 is configured to be supplied to the hot water supply utilization location 1.

  In the hot water supply operation in the non-bypass state, as shown in FIG. 23, the operation control means 19 operates the circulation pump 3 and opens the second proportional valve H2, the third proportional valve H3, and the fourth proportional valve H4. The opening / closing operation of the second on-off valve K2 and the third on-off valve K3 is performed so that the water from the fourth flow path part R4 is supplied to both or one of the first load heat exchanger 7a and the second load heat exchanger 7b. I have control. Here, regarding the opening / closing operation of the second opening / closing valve K2 and the third opening / closing valve K3, in FIG. 23, the second opening / closing is performed so that water from the fourth flow path part R4 is supplied to one of the first load heat exchangers 7a. The case where the opening / closing operation | movement of the valve K2 and the 3rd on-off valve K3 is controlled is shown. Thereby, not only the water taken out from the hot water supply tank 2 but also the water circulated through the burner heating type heat exchanger 6, the load heat exchanger 7 and the heat pump heating type heat exchanger 5 are used in the hot water supply use place 1. Therefore, it is possible to secure a sufficient amount of water as the amount of water to be supplied to the hot water supply use location 1. Moreover, since the water taken out from the hot water supply tank 2 is mixed with the water heated in the burner heating type heat exchanger 6 and the mixed water is supplied to the burner heating type heat exchanger 6, the burner heating type The temperature of the water supplied to the heat exchanger 6 becomes a relatively stable temperature, and as a result, it is possible to stably supply the water at the hot water supply set temperature required at the hot water supply use location 1.

  Also in the sixth embodiment, as described in the third embodiment, the arrangement form of the circulation pump 3 can be changed as shown in FIG. Also in the sixth embodiment, as described in the fourth embodiment, a configuration for heating the water in the hot water supply tank 2 can be added as shown in FIG. Further, in the sixth embodiment, as described in the fifth embodiment, as shown in FIG. 21, the first load heat exchanger 7a and the second load heat exchanger 7b are provided in series. You can also.

[Seventh Embodiment]
This 7th Embodiment is another embodiment of the arrangement | positioning form of the heat pump heating type heat exchanger 5 in the said 2nd Embodiment. Since the other configuration is the same as that of the second embodiment, the description of the other configuration is omitted, and the arrangement of the heat pump heating type heat exchanger 5 will be mainly described.

In the second embodiment, as shown in FIG. 8, the upstream end of the heat pump heating type heat exchanger 5 is connected to the fifth flow path part R5, and the downstream end of the heat pump heating type heat exchanger 5 is The heat pump heating type heat exchanger 5 is arranged between the fifth flow path part R5 and the sixth flow path part R6.
On the other hand, in the seventh embodiment, as shown in FIG. 24, in the second flow path part R2, a heat pump heating type heat is provided in a part between the connection points of the circulation pump 3 and the burner heating type heat exchanger 6. An exchanger 5 is arranged. And in this 7th Embodiment, 6th flow-path part R6 is comprised so that it may connect to the site | part between the hot water supply tank 2 and the circulation pump 3 in the load heat exchanger 7 and 2nd flow-path part R2. The fifth flow path part R5 is not provided.

  In other words, in the seventh embodiment, the first flow path portion R1 that is connected to the hot water supply tank 2 and supplies hot water to the hot water supply tank 2, and the hot water supply tank 2 and the burner heating type heat exchanger 6 are provided as flow path portions. The third flow path part R2 in which the circulation pump 3 and the heat pump heating type heat exchanger 5 are provided, and the burner heating type heat exchanger 6 and the hot water supply use part 1 are connected in the order close to the hot water supply tank 2. The flow path part R3, the fourth flow path part R4 connecting the intermediate part of the third flow path part R3 and the load heat exchanger 7, the hot water tank 2 and the circulation in the load heat exchanger 7 and the second flow path part R2 A sixth flow path part R6 for connecting parts between the pumps 3, a seventh flow path part R7 for connecting a midway part of the first flow path part R1 and a midway part of the sixth flow path part R6, and a second Connection point between hot water tank 2 and sixth flow path part R6 in flow path part R2 And a first bypass passage portion B1 that connects a site between the site and connected to a point and hot water use position 1 to the fourth channel region R4 in the third flow path portion R3 between.

  Then, as shown in FIG. 25, the first water channel W1 includes a first flow path part R1, a hot water supply tank 2, a second flow path part R2, a burner heating heat exchanger 6, and a third flow path part R3. Has been. As shown in FIG. 24, the first bypass water channel V1 includes a first flow path part R1, a hot water supply tank 2, a part of the second flow path part R2, a first bypass flow path part B1, and a third flow path part R3. It consists of a part. As shown in FIG. 26, the second water channel W2 includes the burner heating type heat exchanger 6, a part of the third flow path part R3, the fourth flow path part R4, the load heat exchanger 7, and the sixth flow path part R6. And a part of the second flow path part. As shown in FIG. 27, the third water channel W3 includes a hot water tank 2, a part of the first flow path part R1, a seventh flow path part R7, a part of the sixth flow path part R6, and a second flow path part R2. And a burner heating type heat exchanger 6, a part of the third flow path part R3, and a first bypass flow path part B1.

  Also in the seventh embodiment, the operation control means 19 can execute the heat storage operation, the hot water supply operation, the heating operation, the memorial operation, and the high temperature heating operation as in the second embodiment. Each operation will be described with reference to FIG.

(Heat storage operation)
As shown in FIG. 27, the operation control means 19 switches the heat pump device 4 to the operating state, switches the burner combustion device N to the non-burning state, operates the circulation pump 3, and supplies the first flow path portion from the hot water tank 2. The first switching valve S1 is switched to a state in which the water taken out to R1 is supplied to the seventh flow path part R7, and the second proportional valve H2, the third proportional valve H3, and the fourth proportional valve H4 are opened. The operation control means 19 takes out the water from the lower part of the hot water supply tank 2 to the first flow path part R1 by the pressure of the circulation pump 3 by the third water passage W3, and takes the taken-out water into the seventh flow path part R7, the sixth flow path R6. The heat pump heating type heat exchanger 5 is supplied and heated via the flow path part R6 and the second flow path part R2, and the heated water is supplied to the third flow path part R3, the first bypass flow path part B1, It is returned to the upper part of the hot water supply tank 2 via the second flow path part R2. A part of the water that has passed through the first bypass flow path part B1 is supplied to the upper part of the hot water tank 2 via the second flow path part R2, and the remaining part of the water passes through the second flow path part R2. To the heat pump heating type heat exchanger 5. In this way, the water taken out from the hot water supply tank 2 is heated by the heat pump heating type heat exchanger 5 to become hot water, and the hot water is returned to the hot water supply tank 2 to store heat in the hot water supply tank 2. Here, the operation control means 19 adjusts the rotational speed of the circulation pump 3 and the opening of the third proportional valve H3 so that the temperature of the hot water returned to the upper part of the hot water supply tank 2 becomes a predetermined temperature, and heat pump heating type heat The amount of water supplied to the exchanger 5 is adjusted.

  Here, for example, when the hot water storage operation is performed after the heating operation is performed, the heating temperature requested by the first load heat exchanger 7a in the heating operation is higher in the upper portion of the hot water tank 2 in the heat storage operation. When the temperature is lower than the heat storage temperature required for returning, or when the temperature of the water in the third water channel W3 is lower than the heat storage temperature required for returning to the upper part of the hot water tank 2 in the heat storage operation. However, even if it heats with the heat pump heating type heat exchanger 5, there is a possibility that it cannot be heated to the heat storage temperature. Therefore, in the seventh embodiment, the operation control means 19 circulates water in a part of the third water channel W3 while being heated by the heat pump heating heat exchanger 5 before performing the above-described heat storage operation. The heat storage preliminary operation is performed.

  In this heat storage preliminary operation, as shown in FIG. 28, the operation control means 19 switches the heat pump device 4 to the operating state, switches the burner combustion device N to the non-combusting state, operates the circulation pump 3, and the second proportionality. The valve H2 and the fourth proportional valve H4 are opened. Thereby, the water heated in the heat pump heating type heat exchanger 5 is supplied to the second flow path part R2, the burner heating type heat exchanger 6, the third flow path part R3, the first bypass flow path part B1, and the second. It is returned to the heat pump heating type heat exchanger 5 via the flow path part R2. In this manner, water is circulated in a part of the third water channel W3 while being heated by the heat pump heating type heat exchanger 5, and the circulated water is preheated. And the operation control means 19 will complete | finish a thermal storage preliminary operation, if the temperature (for example, the temperature of the water of 1st bypass flow-path part B1) of the water circulated in a part of 3rd water channel W3 reaches thermal storage temperature. Then, the above-described heat storage operation is started.

(Hot water operation)
In this hot water supply operation, as shown in FIG. 24, the operation control means 19 bypasses the burner heating type heat exchanger 6 and uses the water taken out from the hot water tank 2 with the pressure of the clean water without using the pressure of the circulation pump 3. As shown in FIG. 25, the water taken out from the hot water tank 2 by the pressure of the circulating pump 3 in addition to the pressure of the clean water passes through the burner heating type heat exchanger 6. Thus, it is configured to be switchable to a non-bypass state to be supplied to the hot water supply utilization location 1. Then, the operation control means 19 switches to the bypass state when the temperature of the water in the hot water supply tank 2 is equal to or higher than the switching set temperature, and the temperature of the water in the hot water supply tank 2 is less than the switching set temperature, as in the second embodiment. If it is, it will switch to a non-bypass state.

In the case of switching to the bypass state, as shown in FIG. 24, the operation control means 19 keeps the second proportional valve H2 and the fourth proportional valve H4 closed, and the first bypass water channel V1 causes the The water taken out from the hot water supply tank 2 at a pressure of 2 is supplied to the hot water supply use location 1 by bypassing the burner heating type heat exchanger 6.
In the case of switching to the non-bypass state, as shown in FIG. 25, the operation control means 19 opens the second proportional valve H2 and the fourth proportional valve H4 and operates the circulation pump 3 so that the hot water supply tank 2 The water taken out from the water is supplied to the burner heating type heat exchanger 6 at the second flow path part R2 by the pressure of the circulation pump 3, and the water passing through the burner heating type heat exchanger 6 is supplied to the hot water supply use point 1. is doing.

  Also in the seventh embodiment, as described in the sixth embodiment, as shown in FIG. 22, the first water channel W1 is divided into the first flow path part R1, the hot water tank 2, and the second flow path part R2. And the burner heating type heat exchanger 6, the third flow path part R3, the seventh flow path part R7, and a part of the sixth flow path part R6 (from the connection point of the seventh flow path part R7 to the second flow path part R2 It is also possible to configure the system with a part between the connection part and the part. Further, as described in the sixth embodiment described above, as shown in FIG. 23, the first water channel W1, the first flow path part R1, the hot water supply tank 2, the second flow path part R2, and the burner heating type heat exchange. It can also be constituted by the vessel 6, the third flow path part R3, the fourth flow path part R4, the load heat exchanger 7, and the sixth flow path part R6.

(Heating operation)
As shown in FIG. 26, the operation control means 19 operates the circulation pump 3, and supplies the second on-off valve K2 and the second valve so as to supply water from the fourth flow path portion R4 to the first load heat exchanger 7a. The opening / closing operation of the third opening / closing valve K3 is controlled, the second proportional valve H2 and the fourth proportional valve H4 are kept closed, and the third proportional valve H3 is opened. Thereby, the water is circulated by the pressure of the circulation pump 3 through the burner heating type heat exchanger 6, the first load heat exchanger 7a, and the heat pump heating type heat exchanger 5 by the second water passage W2. As in the second embodiment, the operation control means 19 switches the burner combustion device N between the combustion state and the non-combustion state while the water is circulating in the second water passage W2, and the heat pump device. 4 can be switched between a burner heating state and a heat pump heating state by switching between an operating state and a non-operating state, and with respect to the thermal load required by the first load heat exchanger 7a, The primary energy consumption amount in each of the case of switching to the heating state and the case of switching to the heat pump heating state is obtained, and the obtained primary energy consumption amount is switched to the smaller one.

  In the case of switching to the heat pump heating state, as shown in FIG. 26, the operation control means 19 switches the burner combustion device N to the non-combustion state, switches the heat pump device 4 to the operating state, and the first heat medium circulation pump 15. Is activated. Thereby, water is heated in the heat pump heating type heat exchanger 5 to become warm water, and the warm water is the second flow path part R2, the burner heating type heat exchanger 6, the third flow path part R3, and the fourth flow. The heat medium in the first heat medium circulation path 13 is heated by being supplied to the first load heat exchanger 7a via the path portion R4. At this time, since the burner combustion apparatus N is switched to the non-burning state, the burner heating heat exchanger 6 does not heat water. The heat medium heated in the first load heat exchanger 7 a is supplied to the heating terminal 12 through the first heat medium circulation path 13 and is heated in the heating terminal 12.

On the other hand, in the case of switching to the burner heating state, compared with the case of switching to the heat pump heating state shown in FIG. 26, the part through which water and the heat medium flow is the same, and the state of the burner combustion device N and the heat pump device 4 Are different from each other, and the illustration is omitted.
The operation control means 19 switches the burner combustion device N to the combustion state, switches the heat pump device 4 to the non-operation state, and operates the first heat medium circulation pump 15. Thereby, water is heated in the burner heating type heat exchanger 6 to become warm water, and the warm water is supplied to the first load heat exchanger 7a via the third flow path part R3 and the fourth flow path part R4. The heating medium in the first heating medium circulation path 13 is heated. At this time, since the heat pump device 4 is switched to the non-operating state, water is not heated in the heat pump heating type heat exchanger 5. The heat medium heated in the first load heat exchanger 7 a is supplied to the heating terminal 12 by the first heat medium circulation path 13 and is heated in the heating terminal 12.

(Memorial operation)
Similar to the second embodiment, in the chasing operation, the operation control means 19 supplies the second on-off valve K2 and the second valve so as to supply water from the fourth flow path portion R4 to the second load heat exchanger 7b. Since the point which controls the opening / closing operation | movement of 3 on-off valve K3 is only different from the above-mentioned heating operation, description is abbreviate | omitted.

(Simultaneous operation of hot water supply operation in bypass state + heating operation in heat pump heating state)
When the hot water supply operation in the bypass state and the heating operation in the heat pump heating state are performed simultaneously, as shown in FIG. 29, the operation control means 19 switches the heat pump device 4 to the operating state and turns the burner combustion device N into the non-operation state. Switching to the combustion state, operating the circulation pump 3 and the first heat medium circulation pump 15, and supplying the second on-off valve K2 and the second so as to supply water from the fourth flow path part R4 to the first load heat exchanger 7a. The opening / closing operation of the 3 opening / closing valve K3 is controlled, the first switching valve S1 is switched to the state where the hot water supply tank 2 is directly supplied with water in the first flow path part R1, and the second proportional valve H2 and the fourth proportional valve H4 are closed. Then, the third proportional valve H3 is opened. As a result, the operation control means 19 uses the hot water supply operation in which the water in the hot water supply tank 2 is bypassed the burner heating type heat exchanger 6 and supplied to the hot water use location 1 in the first bypass water channel V1, and in the second water channel W2. The heating operation in the heat pump heating state in which the water heated by the heat pump heating type heat exchanger 5 is supplied to the first load heat exchanger 7a can be performed simultaneously. In this case, the 1st bypass water channel V1 and the 2nd water channel W2 are constituted so that water can flow independently, and the supply of water to the hot water supply use location 1 by the first bypass water channel V1 and the second water channel W2 Supply of the water heated by the heat pump heating type heat exchanger 5 to the first load heat exchanger 7a can be performed simultaneously without interfering with each other.

Further, when the hot water supply operation and the heating operation in the heat pump heating state are performed simultaneously, the temperature of the water supplied to the heat pump heating type heat exchanger 5 gradually increases, and the heat pump heating type heat exchanger The temperature of the water supplied to 5 may be higher than a predetermined temperature (for example, 40 ° C.). As described above, when the temperature of the water supplied to the heat pump heating type heat exchanger 5 is higher than a predetermined temperature (for example, 40 ° C.), the COP (coefficient of performance) of the heat pump device 4 is lowered. If the operation of the heat pump device 4 is continued in a state where the temperature is lowered, the energy efficiency is lowered.
Therefore, when the hot water supply operation and the heating operation in the heat pump heating state are simultaneously performed, when the temperature of the water supplied to the heat pump heating type heat exchanger 5 becomes higher than a predetermined temperature (for example, 40 ° C.), FIG. As indicated by the middle dotted line arrow, the operation control means 19 supplies a part of the water in the first flow path part R1 to the hot water supply tank 2 as it is and the remaining part of the water in the first flow path part R1. The first switching valve S1 is switched to the state of supplying to the seventh flow path part R7, and the fourth proportional valve H4 is opened. Thereby, the water supplied through the first flow path part R1 and the seventh flow path part R7 is mixed with the water of the sixth flow path part R6 and supplied to the heat pump heating type heat exchanger 5 Temperature drops. And the operation control means 19 adjusts the opening degree of 1st switching valve S1 so that the temperature of the water supplied to the heat pump heating type heat exchanger 5 may become below predetermined temperature (for example, 40 degreeC). Thus, when the heat pump device 4 is switched to the operating state, if the temperature of the water supplied to the heat pump heating type heat exchanger 5 becomes higher than a predetermined temperature (for example, 40 ° C.), the heat pump heating type heat exchanger 5 is provided with water supply means 20 that can adjust the temperature of water supplied to the heat supplied to the heat pump 5 to a heat pump heating type heat exchanger 5 to a predetermined temperature (for example, 40 ° C.) or less. The water supply means 20 includes a part of the first flow path part R1, a seventh flow path part R7, a first switching valve S1, a fourth proportional valve H4, and an operation control means 19. By providing this water supply means 20, it is possible to prevent the operation of the heat pump device 4 from being continued in a state where the COP (coefficient of performance) is lowered, and to prevent the energy efficiency from being lowered.

(Simultaneous operation of hot water supply operation in bypass state + heating operation in burner heating state)
In the case where the hot water supply operation in the bypass state and the heating operation in the burner heating state are performed simultaneously, compared to the case where the hot water supply operation in the bypass state and the heating operation in the heat pump heating state shown in FIG. 29 are performed simultaneously, The parts through which water and the heat medium flow are the same, and only the states of the burner combustion apparatus N and the heat pump apparatus 4 are different.
The operation control means 19 switches the heat pump device 4 to the non-operating state, switches the burner combustion device N to the combustion state, operates the circulation pump 3 and the first heat medium circulation pump 15, and outputs from the fourth flow path part R4. The opening / closing operations of the second on-off valve K2 and the third on-off valve K3 are controlled so as to supply water to the first load heat exchanger 7a. As a result, the operation control means 19 uses the hot water supply operation in which the water in the hot water supply tank 2 is bypassed the burner heating type heat exchanger 6 and supplied to the hot water use location 1 in the first bypass water channel V1, and in the second water channel W2. The heating operation in the burner heating state in which the water heated by the burner heating type heat exchanger 6 is supplied to the first load heat exchanger 7a can be performed simultaneously.

(Simultaneous operation of hot water supply operation in non-bypass state + heating operation in heat pump heating state)
When the hot water supply operation in the non-bypass state and the heating operation in the heat pump heating state are performed simultaneously, as shown in FIG. 30, the operation control means 19 switches the heat pump device 4 to the operating state and turns the burner combustion device N on. Switching to the combustion state, operating the circulation pump 3 and the first heat medium circulation pump 15, and supplying the second on-off valve K2 and the second so as to supply water from the fourth flow path part R4 to the first load heat exchanger 7a. The opening / closing operation of the 3 on-off valve K3 is controlled, the first switching valve S1 is switched to the state where the hot water tank 2 is directly supplied with water in the first flow path part R1, the second proportional valve H2, the third proportional valve H3 and the fourth The proportional valve H4 is opened. As a result, the operation control means 19 uses the hot water supply operation in which the water in the hot water supply tank 2 is heated by the heat pump heating type heat exchanger 5 and the burner heating type heat exchanger 6 in the first water channel W1 and supplied to the hot water supply use location 1. The heating operation in the heat pump heating state in which the water heated by the heat pump heating type heat exchanger 5 and the burner heating type heat exchanger 6 is supplied to the first load heat exchanger 7a in the second water channel W2 is simultaneously performed. be able to.

(Simultaneous operation of hot water supply operation in non-bypass state + heating operation in burner heating state)
Compared with the case where the hot water supply operation in the non-bypass state and the heating operation in the burner heating state are performed simultaneously, compared to the case where the hot water supply operation in the non-bypass state and the heating operation in the heat pump heating state shown in FIG. 30 are performed simultaneously. The parts through which water and the heat medium flow are the same, and only the states of the burner combustion device N and the heat pump device 4 are different.
The operation control means 19 switches the heat pump device 4 to the non-operating state, switches the burner combustion device N to the combustion state, operates the circulation pump 3 and the first heat medium circulation pump 15, and outputs from the fourth flow path part R4. The opening / closing operations of the second on-off valve K2 and the third on-off valve K3 are controlled so as to supply water to the first load heat exchanger 7a. As a result, the operation control means 19 uses the hot water supply operation in which the water in the hot water supply tank 2 is heated by the burner heating type heat exchanger 6 in the first water passage W1 and supplied to the hot water supply use location 1, and the burner in the second water passage W2. The heating operation in the burner heating state in which the water heated by the heating heat exchanger 6 is supplied to the first load heat exchanger 7a can be performed simultaneously.

(Simultaneous operation of heat storage operation + heating operation in heat pump heating state)
When simultaneously performing the heat storage operation and the heating operation in the heat pump heating state, the operation control means 19 switches the heat pump device 4 to the operating state and switches the burner combustion device N to the non-burning state, as shown in FIG. The second on-off valve K2 and the third on-off valve K3 are operated so that the circulation pump 3 and the first heat medium circulation pump 15 are operated and the water from the fourth flow path part R4 is supplied to the first load heat exchanger 7a. The first switching valve S1 is switched to a state where the water taken out from the hot water supply tank 2 to the first flow path part R1 is supplied to the seventh flow path part R7, and the second proportional valve H2 is closed. The third proportional valve H3 and the fourth proportional valve H4 are opened. Thereby, the heat storage operation which supplies the water heated by the heat pump heating type heat exchanger 5 to the hot water supply tank 2 to store heat in the hot water supply tank 2, and the water heated by the heat pump heating type heat exchanger 5 The heating operation in the heat pump heating state supplied to the first load heat exchanger 7a can be performed simultaneously.

  Here, in the case of performing the simultaneous operation of the heat storage operation and the heating operation in the burner heating state, such as when performing the heating operation in the burner heating state during the heat storage operation, the operation control means 19 is provided with the heat storage operation and the burner heating state. The heat storage operation is forcibly stopped and only the heating operation in the burner heating state is performed without performing the simultaneous operation with the heating operation.

(Simultaneous operation of hot water supply operation + memorial operation)
When the hot water supply operation in the bypass state and the memorial operation in the heat pump heating state are performed simultaneously, the heat pump is compared with the case where the hot water supply operation in the bypass state and the heating operation in the heat pump heating state are performed simultaneously as shown in FIG. The only difference is that the water heated by the heating heat exchanger 5 is supplied to the second load heat exchanger 7b.
Compared with the case where the hot water supply operation in the non-bypass state and the chasing operation in the heat pump heating state are performed at the same time as compared with the case where the hot water supply operation in the non-bypass state and the heating operation in the heat pump heating state are performed simultaneously as shown in FIG. The only difference is that the water heated by the heat pump heating type heat exchanger 5 is supplied to the second load heat exchanger 7b.

Compared with simultaneous hot water supply operation in the bypass state and heating operation in the burner heating state, both the hot water supply operation in the bypass state and the memorial operation in the burner heating state are performed simultaneously. The only difference is that the water heated in the vessel 6 is supplied to the second load heat exchanger 7b.
Burner heating type when hot water supply operation in a non-bypass state and a chasing operation in a burner heating state are performed at the same time as compared with a case in which hot water supply operation in a non-bypass state and heating operation in a burner heating state are performed simultaneously. The only difference is that the water heated by the heat exchanger 6 is supplied to the second load heat exchanger 7b.

(Simultaneous operation of heat storage operation + memorial operation)
In the case where the heat storage operation and the memorial operation in the heat pump heating state are performed simultaneously, the heat pump heating type heat exchanger 5 is compared with the case where the heat storage operation and the heating operation in the heat pump heating state shown in FIG. 31 are performed simultaneously. The only difference is that the heated water is supplied to the second load heat exchanger 7b.
Here, in the case of performing simultaneous operation of the heat storage operation and the chasing operation in the burner heating state, such as when performing the chasing operation in the burner heating state during the heat accumulating operation, the operation control means 19 includes the heat storage operation and the burner. The heat storage operation is forcibly stopped without performing simultaneous operation with the chasing operation in the heating state, and only the chasing operation in the burner heating state is performed.

(When performing hot water supply operation in bypass state during heat storage operation)
When performing the hot water supply operation in the bypass state during the heat storage operation, as shown in FIG. 32, the operation control means 19 switches the heat pump device 4 to the operating state, switches the burner combustion device N to the non-combustion state, and circulates. The pump 3 is operated to supply a part of the water in the first flow path part R1 to the hot water tank 2 as it is, and supply the remaining part of the water in the first flow path part R1 to the seventh flow path part R7. The first switching valve S1 is switched to the state, the second proportional valve H2 is kept closed, and the third proportional valve H3 and the fourth proportional valve H4 are opened. Thereby, the operation control means 19 adds to the hot water supply operation which bypasses the burner heating type heat exchanger 6 and supplies the water in the hot water supply tank 2 to the hot water use location 1 in the first bypass water channel V1, and heat pump heating type heat exchange. The water heated by the vessel 5 is also supplied to the hot water supply use location 1.

(When performing hot water supply operation in non-bypass state during heat storage operation)
When the hot water supply operation in the non-bypass state is performed during the heat storage operation, the portion through which water or the heat medium flows is the same as in the case of performing the hot water supply operation in the non-bypass state shown in FIG. Since only the state of the device 4 is different, the illustration is omitted.
The operation control means 19 switches the heat pump device 4 to the operating state, switches the burner combustion device N to the combustion state, operates the circulation pump 3, and supplies water to the hot water supply tank 2 as it is in the first flow path portion R1. The first switching valve S1 is switched, the third proportional valve H3 is kept closed, and the second proportional valve H2 and the fourth proportional valve H4 are opened. Thereby, the operation control means 19 is added to the hot water supply operation which supplies the water of the hot water supply tank 2 to the hot water supply use location 1 via the burner heating type heat exchanger 6 in the first water channel W1, and the heat pump heating type heat exchanger. The water heated at 5 is also supplied to the hot water supply use location 1.

(High temperature heating operation)
In this high temperature heating operation, as shown in FIG. 33, the operation control means 19 switches the burner combustion device N to the combustion state, switches the heat pump device 4 to the non-operation state, operates the circulation pump 3, and hot water supply tank 2 The first switching valve S1 is switched to a state where the water taken out from the first flow passage portion R1 is supplied to the seventh flow passage portion R7, and the second proportional valve H2, the third proportional valve H3, and the fourth proportional valve H4. Is opened. Thereby, the water taken out from the lower part of the hot water supply tank 2 is burner-heated heat via the first flow path part R1, the seventh flow path part R7, the sixth flow path part R6, and the second flow path part R2. It is supplied to the exchanger 6 and heated, and the heated water is returned to the upper part of the hot water supply tank 2 through the third flow path part R3, the first bypass flow path part B1, and the second flow path part R2 in this order. ing. A part of the water that has passed through the first bypass flow path part B1 is supplied to the upper part of the hot water tank 2 via the second flow path part R2, and the remaining part of the water passes through the second flow path part R2. The burner heating type heat exchanger 6 is supplied. As shown in FIG. 27, the third water channel W3 is composed of at least a part of the first bypass water channel V1, as described in the above heat storage operation, but from at least a part of the first bypass water channel V1. The configured third water channel W3 is configured to freely circulate the water so that the water taken out from the hot water supply tank 2 is heated by the burner heating type heat exchanger 6 and the heated water is returned to the hot water supply tank 2. ing. And since the water heated by the burner heating type heat exchanger 6 is returned to the hot water supply tank 2, the water in the hot water supply tank 2 can be sterilized and disinfected at a high temperature, so that breeding of Legionella bacteria and the like is appropriately prevented. be able to.

  Also in the seventh embodiment, as described in the fourth embodiment, a configuration for heating the water in the hot water supply tank 2 can be added as shown in FIG. Also in the seventh embodiment, as described in the fifth embodiment, as shown in FIG. 21, the first load heat exchanger 7a and the second load heat exchanger 7b are provided in series. You can also.

[Eighth Embodiment]
This 8th Embodiment is another embodiment of the arrangement | positioning form of the heat pump heating type heat exchanger 5 in the said 2nd Embodiment similarly to the said 7th Embodiment. Since the other configuration is the same as that of the second embodiment, the description of the other configuration is omitted, and the arrangement of the heat pump heating type heat exchanger 5 will be mainly described.

  In the eighth embodiment, as shown in FIG. 34, the heat pump heating type heat exchanger 5 is arranged in a portion between the connection portion of the sixth flow passage portion R6 and the circulation pump 3 in the second flow passage portion R2. Has been. In the eighth embodiment, as in the seventh embodiment, the sixth flow path portion R6 includes the load heat exchanger 7 and the hot water supply tank 2 and the heat pump heating heat exchanger 5 in the second flow path portion R2. The fifth channel portion R5 is not provided.

  That is, in the eighth embodiment, the first flow path portion R1 that is connected to the hot water supply tank 2 and supplies hot water to the hot water supply tank 2, and the hot water supply tank 2 and the burner heating type heat exchanger 6 are connected as the flow path portions. A third flow path part R2 provided with the heat pump heating type heat exchanger 5 and the circulation pump 3, the burner heating type heat exchanger 6 and the hot water supply use point 1 is connected in the order of connection to the hot water supply tank 2. The flow path part R3, the fourth flow path part R4 connecting the intermediate part of the third flow path part R3 and the load heat exchanger 7, the hot water supply tank 2 and the heat pump in the load heat exchanger 7 and the second flow path part R2 A sixth flow path part R6 that connects the parts between the heating heat exchangers 5, and a seventh flow path part R7 that connects the middle part of the first flow path part R1 and the middle part of the sixth flow path part R6. And the hot water supply tank 2 and the sixth flow path portion R in the second flow path portion R2. A first bypass flow path part B1 for connecting a part between the connection part and the connection part to the fourth flow path part R4 in the third flow path part R3 and a part between the hot water supply use part 1 and the third flow path part R3. ing.

  And the 1st water channel W1 is comprised by 1st flow-path part R1, the hot water supply tank 2, 2nd flow-path part R2, the burner heating type heat exchanger 6, and 3rd flow-path part R3. The first bypass water channel V1 is composed of the first flow path part R1, the hot water supply tank 2, a part of the second flow path part R2, the first bypass flow path part B1, and a part of the third flow path part R3. Yes. The second water channel W2 includes the burner heating type heat exchanger 6, part of the third flow path part R3, the fourth flow path part R4, the load heat exchanger 7, the sixth flow path part R6, and the second flow path part. It consists of a part. The third water channel W3 includes a hot water supply tank 2, a part of the first channel part R1, a seventh channel part R7, a part of the sixth channel part R6, a second channel part R2, and a burner heating type heat exchanger. 6 and a part of the third flow path part R3 and the first bypass flow path part B1. Thereby, since the 3rd waterway W3 contains a part of 1st flow path site | part R1 in the 1st bypass water channel V1, a part of 2nd flow path site | part R2, and 1st bypass flow path site | part B1, 3rd The water channel W3 is composed of at least a part of the first bypass water channel V1.

  Also in the eighth embodiment, as in the seventh embodiment, the operation control means 19 can execute a heat storage operation, a hot water supply operation, a heating operation, a memorial operation, and a high temperature heating operation. Compared to the seventh embodiment, the arrangement relationship between the circulation pump 3 and the heat pump heating heat exchanger 5 in the second flow path part R2 is merely opposite in the direction of water flow. Is omitted.

  Also in the eighth embodiment, as described in the fourth embodiment, a configuration for heating the water in the hot water supply tank 2 can be added as shown in FIG. Also in the eighth embodiment, as described in the fifth embodiment, as shown in FIG. 21, the first load heat exchanger 7a and the second load heat exchanger 7b are provided in series. You can also.

[Ninth Embodiment]
In the ninth embodiment, in the second, seventh and eighth embodiments, the sensible heat recovery heat exchanger in which the burner heating type heat exchanger 6 heats water by the sensible heat of the combustion gas of the burner combustion device N. 6a and a latent heat recovery heat exchanger 6b that heats water by the latent heat of the combustion gas of the burner combustion device N. Since other configurations are the same as those of the second, seventh, and eighth embodiments, description of other configurations is omitted, and the configuration of the burner heating type heat exchanger 6 will be mainly described.

  As shown in FIG. 35, the burner heating type heat exchanger 6 includes a sensible heat recovery heat exchanger 6a and a latent heat recovery heat exchanger 6b, and the latent heat recovery heat exchanger 6b and the sensible heat recovery heat exchanger. 6a is a flow direction of water in the first water channel W1, and is provided in the order of a latent heat recovery heat exchanger 6b and a sensible heat recovery heat exchanger 6a. That is, the second flow path part R2 which is a part of the first water channel W1 connects the hot water supply tank 2 and the sensible heat recovery heat exchanger 6a, and the latent heat recovery heat exchanger 6b is the second flow path part. It is provided in a portion between the connection portion with the first bypass flow passage portion B1 in R2 and the sensible heat recovery heat exchanger 6a. And the 1st bypass water channel V1 is a latent heat recovery heat exchanger by supplying the water taken out from the hot water supply tank 2 to the hot water supply use location 1 through the first bypass flow channel site B1 which is a part of the first bypass water channel V1. 6 b and the sensible heat recovery heat exchanger 6 a are bypassed, and the water taken out from the hot water supply tank 2 is supplied to the hot water supply use location 1. In FIG. 35, in the seventh embodiment, the burner heating type heat exchanger 6 includes a sensible heat recovery heat exchanger 6a and a latent heat recovery heat exchanger 6b, and the latent heat recovery heat exchanger 6b is connected to the second flow. The case where it provided in the site | part from the connection location with 1st bypass flow-path site | part B1 in the path | route site | part R2 to the connection location with 6th flow-path site | part R6 is shown. In this case, as another installation position of the latent heat recovery heat exchanger 6b, the second flow path part R2 can be provided at any one of the points A, B, and C in FIG.

Thereby, in the hot water supply operation in the bypass state, the water taken out from the hot water supply tank 2 bypasses the latent heat recovery heat exchanger 6b and the sensible heat recovery heat exchanger 6a by the first bypass flow path part B1, and enters the hot water supply use point 1. Can be supplied. Accordingly, while preventing heat radiation due to passing through the latent heat recovery heat exchanger 6b and the sensible heat recovery heat exchanger 6a, the water in the hot water supply tank 1 is used as it is and the water at the hot water supply set point 1 is supplied to the hot water use location 1. Can do.
Moreover, in the hot water supply operation in the non-bypass state, the water taken out from the hot water supply tank 2 is supplied to the hot water supply use location 1 through the first water passage W1 via the latent heat recovery heat exchanger 6b and the sensible heat recovery heat exchanger 6a. Can do. Therefore, not only the sensible heat of the combustion gas in the sensible heat recovery heat exchanger 6a but also the water is heated not only by the sensible heat of the combustion gas in the latent heat recovery heat exchanger 6b, but also by improving the heating capacity, thereby improving the energy saving performance. Can be achieved.

  Also in the ninth embodiment, as described in the fourth embodiment, a configuration for heating the water in the hot water supply tank 2 can be added as shown in FIG. Also in the ninth embodiment, as described in the fifth embodiment, as shown in FIG. 21, the first load heat exchanger 7a and the second load heat exchanger 7b are provided in series. You can also.

[Another embodiment]
(1) In the first, second, and seventh embodiments, in the heating operation and the memorial operation, the operation control means 19 is in a burner heating state with respect to the heat load required by the load heat exchanger 7. The primary energy consumption amount in each of the case of switching and the case of switching to the heat pump heating state is obtained, and the obtained primary energy consumption amount is switched to a smaller one. When there is an operation request from the terminal, the heating operation is performed in the burner heating state, and when the operation request is from the low temperature heating terminal, the heating operation can be performed in the heat pump heating state, and from which heating terminal is the operation request Thus, the heating operation can be performed by switching between the burner heating state and the heat pump heating state. In addition, as a memorial operation, a high-speed memorial operation in which the time for raising the bath water temperature to the target temperature is short, and a low-speed memorial operation in which the time for raising the bath water temperature to the target temperature is longer than that in the high-speed memorial operation. When high-speed memorial operation is required, perform memorial operation in the burner heating state, and when low-speed memorial operation is requested, perform memorial operation in the heat pump heating state, and perform high-speed memorial operation Depending on whether the low-speed chasing operation or the low-speed chasing operation is required, the chasing operation can be performed by switching between the burner heating state and the heat pump heating state. Further, a switching condition for switching between the burner heating state and the heat pump heating state is set in the operation control means 19 based on the outside air temperature, the bathtub temperature, etc., and whether or not the operation control means 19 satisfies the switching condition. Depending on the situation, the heating operation and the chasing operation can be performed by switching between the burner heating state and the heat pump heating state.

(2) In the first, second, and seventh embodiments, the configuration including the water supply means 20 is shown in order to prevent the operation of the heat pump device 4 from being continued in a state where the COP (coefficient of performance) is lowered. However, the following configuration may be employed instead of this configuration.
That is, as shown in FIGS. 4, 13, and 30, the temperature of the water supplied to the heat pump heating type heat exchanger 5 is higher than a predetermined temperature (for example, 40 ° C.) in a state where the heat pump device 4 is switched to the operating state. If it becomes higher, the operation control means 19 switches the heat pump device 4 from the operating state to the non-operating state, and stops the operation of the heat pump device 4. Thereby, it is possible to prevent the operation of the heat pump device 4 from being continued in a state where the COP (coefficient of performance) is lowered, and it is possible to prevent the energy efficiency from being lowered. In this case, since the heat pump device 4 is switched to the non-operating state, the heat pump heating type heat exchanger 5 cannot heat water, but as shown in FIGS. 4, 13 and 30, the burner combustion device N Is switched to the combustion state, and the water can be heated by the burner heating type heat exchanger 6, so that water is supplied to the hot water supply location 1 and water is supplied to the first load heat exchanger 7a. Can continue.

(3) In the first, second, and seventh embodiments, an example is shown in which an on-off valve such as the first on-off valve K1 or the second on-off valve K2 is provided. You can also For example, the first on-off valve K1 can be a first proportional valve and the second on-off valve K2 can be a second proportional valve. Moreover, in the said 2nd and 7th embodiment, it replaces with the 2nd proportional valve H2 and the 3rd proportional valve H3, and a three-way valve may be provided in the connection location of 2nd flow-path part R2 and 6th flow-path part R6. it can. That is, various valves such as on-off valves and proportional valves can be appropriately changed to various valves such as proportional valves and three-way valves.

  The present invention relates to a hot water supply tank for storing water to be supplied to a hot water use location, a circulation pump for circulating water in a water channel, a heat pump heating heat exchanger for heating water by a heat pump device, and heating water by a burner combustion device. A heat exchanger that heats the burner and a load heat exchanger that consumes heat at least one of the heating load and the additional load, and the piping is simple and simple, and the heat exchanger has a complicated structure. It is not necessary to adopt a structure such as a fluid heat exchanger, and can be applied to various heat medium supply devices that can reduce the number of circulation pumps and heat exchangers as much as possible, simplifying the configuration and reducing costs. It is.

DESCRIPTION OF SYMBOLS 1 Hot water use location 2 Hot water tank 3 Circulation pump 4 Heat pump device 5 Heat pump heating type heat exchanger 6 Burner heating type heat exchanger 6a Sensible heat recovery heat exchanger 6b Latent heat recovery heat exchanger 7 Load heat exchanger 7a First load heat Exchanger 7b Second load heat exchanger 19 Operation control means B1 First bypass channel portion V1 First bypass channel W1 First channel W2 Second channel W3 Third channel X Waste heat heating channel R1 First channel region R2 First 2nd flow path part R3 3rd flow path part R4 4th flow path part R5 5th flow path part R6 6th flow path part R7 7th flow path part

Claims (23)

  A hot water supply tank for storing water to be supplied to a hot water supply location, a circulation pump for circulating water in the water channel, a heat pump heating type heat exchanger for heating water by a heat pump device, and a burner heating type for heating water by a burner combustion device A heat exchanger, a load heat exchanger that consumes heat in at least one of a heating load and a memorial load, and at least water taken out from the hot water tank at a pressure of clean water through the burner-heated heat exchanger A first water channel to be supplied to the hot water use location, and a second water that circulates through the burner heating heat exchanger, the load heat exchanger, and the heat pump heating heat exchanger at a pressure of the circulation pump. A water channel, and the first water channel and the second water channel are configured to share at least a water channel including the burner-heated heat exchanger, and burn the burner combustion device. On purpose it is freely switched to the non-combustion state, and, a heating medium supply device capable of switching the operation control means is provided to the operating state and the inoperative state the heat pump device. A first flow path portion connected to the hot water tank for supplying clean water to the hot water tank, a second flow path portion for connecting the hot water tank and the burner heating heat exchanger, and the burner heating heat exchange A third flow path part for connecting a hot water supply and the hot water supply use location, a fourth flow path part for connecting the intermediate part of the third flow path part and the load heat exchanger, the load heat exchanger and the heat pump heating A fifth flow path portion that connects the heat exchanger, and a sixth flow path portion that connects the heat pump heating heat exchanger and a middle portion of the second flow path portion and is provided with the circulation pump. ,
The first water channel includes the first channel part, the hot water tank, the second channel part, the burner heating heat exchanger, the third channel part, the fourth channel part, and the load heat exchange. And the fifth flow path part, the heat pump heating heat exchanger and the sixth flow path part, and the second water channel is one of the burner heating heat exchanger and the third flow path part. Part, the fourth flow path part, the load heat exchanger, the fifth flow path part, the heat pump heating type heat exchanger, the sixth flow path part, and a part of the second flow path part. The heating medium supply device according to claim 1.   The operation control means includes a hot water supply operation for supplying water to the hot water supply use location through the first water channel, the circulation pump is operated to switch the burner combustion device to a non-combustion state, and the heat pump device is switched to an operation state. The heat consumption operation in a heat pump heating state in which water heated by the heat pump heating type heat exchanger through the second water channel is supplied to the load heat exchanger, and the circulation pump is operated to operate the burner combustion apparatus. Switching to a combustion state and switching the heat pump device to a non-operating state and supplying water heated in the burner heating heat exchanger by the second water channel to the load heat exchanger in a heat consumption operation in a burner heating state The heat-medium supply apparatus of Claim 1 or 2 comprised so that execution is possible.   A third water passage through which water circulates at least via the hot water supply tank and the heat pump heating type heat exchanger at a pressure of the circulation pump, and the water taken out from the hot water supply tank is supplied to the heat pump heating type by the third water passage; Water is configured to be freely circulated so that the heated water is returned to the hot water supply tank, and the second water channel and the third water channel are water channels including the heat pump heating type heat exchanger. The heating medium supply device according to any one of claims 1 to 3, wherein the at least one is configured in common. A first flow path portion connected to the hot water supply tank for supplying clean water to the hot water supply tank; a second flow path portion connecting the hot water supply tank and the burner heating heat exchanger; and the load heat exchanger; A fifth flow path part for connecting the heat pump heating heat exchanger, and a sixth flow path part for connecting the intermediate part of the heat pump heating heat exchanger and the second flow path part to provide the circulation pump And a seventh flow path part for connecting a midway part of the first flow path part and a midway part of the fifth flow path part,
The third water channel includes the hot water supply tank, a part of the first channel part, the seventh channel part, a part of the fifth channel part, the heat pump heating heat exchanger, and the sixth channel. The heat-medium supply apparatus of Claim 4 comprised by the site | part and a part of said 2nd flow-path site | part.   The operation control means performs a heat storage operation for operating the circulation pump to switch the heat pump device to an operating state and supplying water heated by the heat pump heating heat exchanger through the third water channel to the hot water supply tank. The heating medium supply device according to claim 4 or 5, which is configured to be executable.   The second water channel and the third water channel are configured such that water extracted from the hot water supply tank is heated by the burner heating type heat exchanger, and water can be circulated so as to return the heated water to the hot water supply tank. The heating-medium supply apparatus of any one of Claims 4-6.   It is possible to form a first bypass water channel that bypasses at least the burner heating type heat exchanger and supplies water taken out from the hot water supply tank with the pressure of clean water without using the pressure of the circulation pump to the hot water use location. The heating medium supply device according to claim 1. A first flow path portion connected to the hot water supply tank for supplying clean water to the hot water supply tank, and a second flow path portion provided with the circulation pump by connecting the hot water supply tank and the burner heating heat exchanger. A third flow path portion connecting the burner heating type heat exchanger and the hot water supply utilization location, a fourth flow path portion connecting the load heat exchanger and a midway portion of the third flow path portion, A fifth flow path part for connecting the load heat exchanger and the heat pump heating type heat exchanger, and a part between the hot water supply tank and the circulation pump in the heat pump heating type heat exchanger and the second flow path part are connected. To the fourth flow path part in the third flow path part and the part between the hot water supply tank in the second flow path part and the connection part to the sixth flow path part. Between the connection point and the hot water use point And a first bypass passage portion for connecting site,
The first water channel is composed of the first channel part, the hot water tank, the second channel part, the burner heating heat exchanger, and the third channel part, and the first bypass channel is The first flow path part, the hot water tank, a part of the second flow path part, the first bypass flow path part, and a part of the third flow path part, the second water channel, Burner heating type heat exchanger, part of the third flow path part, the fourth flow path part, the load heat exchanger, the fifth flow path part, the heat pump heating type heat exchanger, and the sixth flow path The heat medium supply device according to claim 8, comprising a part and a part of the second flow path part.   In the hot water supply operation, when the temperature of the water in the hot water supply tank is equal to or higher than a switching set temperature corresponding to the hot water supply set temperature required at the hot water supply use location, the operation control means uses the first bypass water channel. Switching to a bypass state in which water is supplied to the hot water use location, and when the temperature of the water in the hot water tank is lower than the switching set temperature, a non-bypass state is set in which water is supplied to the hot water usage location by the first water channel. The heat-medium supply apparatus of Claim 8 or 9 comprised so that it may switch.   The operation control means includes a hot water supply operation for supplying water to the hot water supply use location through the first water channel, the circulation pump is operated to switch the burner combustion device to a non-combustion state, and the heat pump device is switched to an operation state. The heat consumption operation in a heat pump heating state in which water heated by the heat pump heating type heat exchanger through the second water channel is supplied to the load heat exchanger, and the circulation pump is operated to operate the burner combustion apparatus. Switching to a combustion state and switching the heat pump device to a non-operating state and supplying water heated in the burner heating heat exchanger by the second water channel to the load heat exchanger in a heat consumption operation in a burner heating state The heat medium supply device according to claim 8, wherein the heat medium supply device is configured to be executable.   A third water passage through which water circulates at least via the hot water supply tank and the heat pump heating type heat exchanger at a pressure of the circulation pump, and the water taken out from the hot water supply tank is supplied to the heat pump heating type by the third water passage; Water is configured to be freely circulated so that the heated water is returned to the hot water supply tank, and the second water channel and the third water channel are water channels including the heat pump heating type heat exchanger. The heating medium supply device according to any one of claims 8 to 11, wherein the at least one is configured in common.   The third water channel through which water circulates through at least the hot water supply tank and the heat pump heating heat exchanger at the pressure of the circulation pump is configured by at least a part of the first bypass water channel. The heating medium supply device according to any one of the above. A first flow path portion connected to the hot water supply tank for supplying clean water to the hot water supply tank, and a second flow path portion provided with the circulation pump by connecting the hot water supply tank and the burner heating heat exchanger. A third flow path portion connecting the burner heating type heat exchanger and the hot water supply utilization location, a fourth flow path portion connecting the load heat exchanger and a midway portion of the third flow path portion, A fifth flow path part for connecting the load heat exchanger and the heat pump heating type heat exchanger, and a part between the hot water supply tank and the circulation pump in the heat pump heating type heat exchanger and the second flow path part are connected. A sixth flow path portion, a seventh flow path portion connecting a midway portion of the first flow path portion and a midway portion of the fifth flow path portion, the hot water supply tank in the second flow path portion, and the Part between the connection point to the sixth flow path part And a first bypass passage portion connected to a site until the hot water utilization portion and the connecting portion of the to fourth channel site in fine the third flow path part,
The first water channel is composed of the first channel part, the hot water tank, the second channel part, the burner heating heat exchanger, and the third channel part, and the first bypass channel is The first flow path part, the hot water tank, a part of the second flow path part, the first bypass flow path part, and a part of the third flow path part, the second water channel, Burner heating type heat exchanger, part of the third flow path part, the fourth flow path part, the load heat exchanger, the fifth flow path part, the heat pump heating type heat exchanger, and the sixth flow path And a part of the second flow path part, and the third water channel includes the hot water tank, a part of the first flow path part, the seventh flow path part, and the fifth flow path part. A part, the heat pump heating type heat exchanger, the sixth channel part, the second channel part, and the burner heating type heat exchanger Vessel and heating medium supply apparatus according to claim 13 which is composed of a part and the first bypass passage portion of the third flow path part. A first flow path portion connected to the hot water supply tank for supplying clean water to the hot water supply tank, the hot water supply tank and the burner heating heat exchanger are connected, and the circulation pump and the A second flow path portion provided with a heat pump heating heat exchanger, a third flow path portion connecting the burner heating heat exchanger and the hot water supply utilization location, a midway portion of the third flow path portion, and the A fourth flow path portion for connecting a load heat exchanger, a sixth flow path portion for connecting a portion between the hot water tank and the circulation pump in the load heat exchanger and the second flow path portion, and the first 7th flow path part which connects the middle part of the 1st flow path part and the middle part of the 6th flow path part, and the connection place to the hot water supply tank and the 6th flow path part in the 2nd flow path part In front of the part between and the third flow path part And a first bypass passage portion connected to a site until the hot water utilization portion and the connection into the fourth channel region,
The first water channel is composed of the first channel part, the hot water tank, the second channel part, the burner heating heat exchanger, and the third channel part, and the first bypass channel is The first flow path part, the hot water tank, a part of the second flow path part, the first bypass flow path part, and a part of the third flow path part, the second water channel, It comprises a burner heating type heat exchanger, a part of the third flow path part, the fourth flow path part, the load heat exchanger, the sixth flow path part, and a part of the second flow path part. The third water channel includes the hot water supply tank, a part of the first channel part, the seventh channel part, a part of the sixth channel part, the second channel part, and the burner heating type heat. The heating medium supply device according to claim 13, comprising an exchanger, a part of the third flow path part, and the first bypass flow path part. . The heat pump heating type heat is connected to the hot water supply tank, connected to the first flow path part for supplying clean water to the hot water tank, the hot water tank and the burner heating type heat exchanger, and in order from the hot water tank. A second flow path portion provided with an exchanger and the circulation pump, a third flow path portion connecting the burner heating type heat exchanger and the hot water supply utilization location, an intermediate portion of the third flow path portion, and the A fourth flow path part for connecting the load heat exchanger, and a sixth flow path part for connecting a part between the hot water tank and the heat pump heating heat exchanger in the load heat exchanger and the second flow path part. And a seventh flow path portion connecting a midway portion of the first flow path portion and a midway portion of the sixth flow path portion, to the hot water supply tank and the sixth flow path portion in the second flow path portion And the third flow between the connection point and the third flow And a first bypass passage portion for connecting site between the connection point of the to fourth channel region at a site to the hot water usage position,
The first water channel is composed of the first channel part, the hot water tank, the second channel part, the burner heating heat exchanger, and the third channel part, and the first bypass channel is The first flow path part, the hot water tank, a part of the second flow path part, the first bypass flow path part, and a part of the third flow path part, the second water channel, It comprises a burner heating type heat exchanger, a part of the third flow path part, the fourth flow path part, the load heat exchanger, the sixth flow path part, and a part of the second flow path part. The third water channel includes the hot water supply tank, a part of the first channel part, the seventh channel part, a part of the sixth channel part, the second channel part, and the burner heating type heat. The heating medium supply device according to claim 13, comprising an exchanger, a part of the third flow path part, and the first bypass flow path part. .   The operation control means performs a heat storage operation for operating the circulation pump to switch the heat pump device to an operating state and supplying water heated by the heat pump heating heat exchanger through the third water channel to the hot water supply tank. The heat-medium supply apparatus of any one of Claims 12-16 comprised so that execution is possible.   The third water channel constituted by at least a part of the first bypass water channel heats the water taken out from the hot water supply tank by the burner heating type heat exchanger, and supplies the heated water to the hot water supply tank. The heating medium supply device according to any one of claims 12 to 17, wherein water is circulated so as to be returned.   The sensible heat recovery heat exchanger in which the burner heating type heat exchanger heats water by sensible heat of combustion gas of the burner combustion device, and a latent heat recovery heat exchanger in which water is heated by latent heat of combustion gas of the burner combustion device The latent heat recovery heat exchanger and the sensible heat recovery heat exchanger are provided in the order of the latent heat recovery heat exchanger and the sensible heat recovery heat exchanger in the flow direction of water in the first water channel. The first bypass water channel is configured to supply water extracted from the hot water supply tank by bypassing the latent heat recovery heat exchanger and the sensible heat recovery heat exchanger to the hot water use location. The heating medium supply device according to any one of 8 to 18.   The operation control means is a heat pump heating state in which the burner combustion device is switched to a non-burning state and the heat pump device is switched to an operating state and water heated by the heat pump heating heat exchanger is supplied to the load heat exchanger The burner combustion device can be switched to a combustion state and the heat pump device can be switched to a non-operational state to switch to a burner heating state in which water heated by the burner heating heat exchanger is supplied to the load heat exchanger. In addition, for the heat load required in the load heat exchanger, the one with the smaller primary energy consumption when switched to the burner heating state and when switched to the heat pump heating state is selected. The heating medium supply device according to any one of claims 1 to 19, wherein the heating medium supply device is configured to be switched.   The operation control means switches the heat pump device to a non-operating state when a temperature of water supplied to the heat pump heating heat exchanger is higher than a predetermined temperature in a state where the heat pump device is switched to an operating state. The heating medium supply device according to any one of 1 to 20.   When the temperature of the water supplied to the heat pump heating type heat exchanger is higher than a predetermined temperature in a state where water is supplied to the hot water use location by the first water channel and the heat pump device is switched to an operating state, A water supply means for supplying water to the water supplied to the heat pump heating type heat exchanger and capable of adjusting the temperature of the water supplied to the heat pump heating type heat exchanger below the predetermined temperature is provided. The heating medium supply device according to any one of 20.   The water extracted from the hot water tank is heated by solar heat, the heated water is returned to the hot water tank, and the water extracted from the hot water tank is heated by exhaust heat generated by the combined heat and power supply device. Then, at least one of the exhaust heat heating water channels for returning the heated water to the hot water supply tank circulates at least through the hot water supply tank and the heat pump heating heat exchanger at least by the pressure of the circulation pump. The heating medium supply device according to any one of claims 1 to 22, which is also used as a third water channel.

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