JP2014181829A - Terminal for using high temperature water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform operation while effectively using heat.SOLUTION: An operation control part 213 is configured so as to perform a temperature limit mode in which operation is performed by actuating operation action parts 207, 209, and 211 assuming that a hot water temperature to be received by a temperature receiving part 205 is not less than a required temperature when the operation is performed; and a temperature non-limit mode in which the operation is performed by actuating the operation action parts 207, 209, and 211 irrespective of the hot water temperature to be received by the hot water receiving part 205.

Description

  The present invention relates to a high-temperature water use terminal which receives supply of warm water from the outside and operates using the warm water.

  In the equipment equipped with the high-temperature water use terminal as described above, for example, hot water is stored in a hot water storage tank as hot water as waste water from a combined heat and power generation device, and hot water is generated using the stored hot water as a heat source. The high temperature water utilization terminal is operated by supplying the warm water to the high temperature water utilization terminal (see, for example, Patent Document 1). In the thing of this patent document 1, in addition to a high temperature water utilization terminal, the low temperature water utilization terminal is also provided, for example, a high temperature water utilization terminal is high temperature water (for example, 75 degreeC or 80 ° C) is used, and a bathroom drying device that operates using the high-temperature water is used. The low-temperature water use terminal receives low-temperature water (for example, 40 ° C or 60 ° C) and the low temperature The floor heating apparatus etc. which operate | move using water are used.

  For example, in the case of a bathroom drying device, the hot water use terminal supplies the supplied hot water to the heat exchange unit, and heats a part of the air sucked from the bathroom with the hot water in the heat exchange unit, While supplying the heated air in a bathroom and exhausting a part of the air suck | inhaled from the inside of a bathroom outside, it is comprised so that bathroom drying operation may be performed. In such a high-temperature water use terminal, in order to perform the operation, a high temperature (for example, 75 ° C. or 80 ° C.) is required as the temperature of the supplied hot water. Therefore, in the facility described in Patent Document 1, when the required temperature is higher than the hot water temperature of the hot water storage tank, the auxiliary heating unit is provided so that the hot water at the required temperature can be supplied to the high-temperature water use terminal. I have. By heating the hot water taken out from the hot water storage tank in the auxiliary heating unit, the hot water taken out exceeds the required temperature, hot water at the required temperature is generated using the hot water above the required temperature as a heat source, and the hot water at the required temperature is heated to a high temperature. The water is supplied to terminals.

JP 2011-47591 A

  In the high-temperature water use terminal described in Patent Document 1, the required hot water temperature is limited to a high temperature (for example, 75 ° C. or 80 ° C.). For example, hot water having a temperature lower than the required temperature is supplied. If there is, a high-temperature water request command is issued to instruct the facility that supplies the high-temperature water use terminal to supply high-temperature water at the required temperature. Therefore, as a high-temperature water use terminal, even if the supply of hot water having a temperature lower than the required temperature is received, the operation is not performed using the hot water. If high-temperature water is not supplied, it will stop due to an abnormal condition. Therefore, in such a high-temperature water use terminal, even if there is heat that can be used for operation, if the heat is lower than the required temperature, operation using that heat cannot be performed.

  In particular, in the thing of patent document 1, when operating a high temperature water utilization terminal, it always heats by an auxiliary heating part, generates high temperature water using the warm water heated in the auxiliary heating part as a heat source, High-temperature water at the required temperature is supplied to the high-temperature water use terminal. Therefore, the heat source for operating the high-temperature water utilization terminal is mainly heat acquired by the heating of the auxiliary heating unit, and the hot water stored in the hot water storage tank cannot be effectively used. Therefore, it is required to operate the high-temperature water use terminal while effectively utilizing the hot water stored in such a hot water storage tank.

  The present invention has been made paying attention to such a point, and an object thereof is to provide a high-temperature water use terminal that can be operated while effectively utilizing heat.

In order to achieve this object, the high temperature water use terminal according to the present invention is characterized in that the supplied hot water is received by the hot water receiving unit and supplied to the heat exchanging unit, and the fluid to be heated is supplied to the heat exchanging unit. A driving operation unit that supplies the driving operation and an operation control unit that operates by operating the driving operation unit;
When the operation control unit performs the operation, when the hot water temperature received by the hot water receiving unit is equal to or higher than the required temperature, the operation control unit is operated to operate, and the received hot water temperature is lower than the required temperature. The temperature limiting mode for stopping the driving operation unit and the temperature non-limiting mode for operating the driving operation unit regardless of the hot water temperature received by the hot water receiving unit can be executed. is there.

  According to this characteristic configuration, the operation control unit can execute not only the temperature limit mode but also the temperature non-limit mode when operating the high-temperature water use terminal. In this temperature non-restriction mode, even if the hot water temperature received by the hot water receiving unit is lower than the required temperature, the operation unit can be operated regardless of the hot water temperature. Thereby, even if the warm water temperature received in the warm water receiving unit is lower than the required temperature, the high temperature water utilization terminal can be operated by utilizing the heat of the warm water. For example, in a facility equipped with a hot water use terminal that supplies hot water stored in a hot water storage tank to the hot water use terminal, the hot water temperature stored in the hot water tank is lower than the required temperature. Even so, by receiving the supply of hot water using the hot water stored in the hot water storage tank as a heat source, the hot water use terminal can be operated using the hot water. Therefore, the hot water in the hot water storage tank can be effectively used to operate the high temperature water utilization terminal, and the high temperature water utilization terminal that can be operated while effectively utilizing heat can be provided.

  The reason why such a temperature non-restriction mode is acceptable is that a so-called high-temperature water terminal normally has a required temperature at which a high-temperature water can be used at a sufficiently high temperature and a rapid heat utilization. For example, when a bathroom drying apparatus is taken as an example of a high-temperature water use terminal, the required temperature is set in consideration of the completion of drying as quickly as possible. For this setting, depending on factors such as the usage environment of the high-temperature water terminal and the convenience of the user, there is a case where a conventionally required temperature is not required and a state lower than the required temperature can be allowed. For example, when drying is desired for a relatively long time at night. Therefore, by providing a temperature non-restriction mode in contrast to the temperature restriction mode that has been conventionally provided that requires hot water above the required temperature, hot water lower than the required temperature can be used.

  According to a further feature of the high-temperature water use terminal according to the present invention, the operation control unit is configured so that the hot water temperature received by the hot water receiving unit is less than an allowable set temperature set as a temperature lower than the required temperature. The operation in the temperature non-restricted mode is prohibited, and the operation in the temperature non-restricted mode is permitted when the hot water temperature received by the hot water receiving unit is equal to or higher than the allowable set temperature.

As described above, in the temperature non-restriction mode, the hot water received by the hot water receiving unit is received as it is, and the driving operation unit is operated to operate. Therefore, if the hot water temperature received at the hot water receiving unit is excessively lower than the required temperature that is originally required for operating the high temperature water terminal, the driving operation unit may be adversely affected, There is a possibility that the desired effect cannot be obtained even if the user terminal is operated.
Therefore, according to this configuration, if the hot water temperature received at the hot water receiving unit is lower than the allowable set temperature, the operation in the temperature non-restricted mode is prohibited, and the hot water temperature received at the hot water receiving unit is equal to or higher than the allowable set temperature. Only in this case, operation in the temperature non-restricted mode is allowed. As a result, even if the hot water is lower than the required temperature, if the hot water is in an allowable temperature range that is equal to or higher than the allowable set temperature, the hot water use terminal can be operated using the hot water, The operation in the temperature non-limiting mode can be performed under the condition that the above effect can be obtained.

  A further characteristic configuration of the high-temperature water use terminal according to the present invention is a first feature in which the operation unit is a hot water supply pipe that receives hot water and supplies the hot water to the heat exchange unit. A first supply state in which hot water is supplied by the first supply pipe and a second supply state in which hot water is supplied by the second supply pipe. When the operation control unit performs the operation in the temperature limit mode, the operation control unit switches the operation unit to the first supply state and performs the operation in the temperature non-limit mode. The point is to switch the operation unit to the second supply state.

  According to this characteristic configuration, in order to perform the operation in the temperature non-restricted mode, for example, the existing hot water supply pipe connected to the high-temperature water use terminal is set as the first supply pipe, and the second supply pipe is newly set to the high temperature. It is only necessary to add a configuration that is connected to the water use terminal and switches between supplying hot water through the first supply pipe or supplying hot water through the second supply pipe. Therefore, it is possible to realize the operation in the temperature non-restricted mode while using the configuration for supplying the hot water higher than the required temperature to the high temperature water using terminal as it is by the existing hot water supply pipe, so that the configuration can be simplified. it can.

  According to a further characteristic configuration of the high-temperature water use terminal according to the present invention, the operation unit includes a single hot water supply pipe that receives the hot water and supplies the hot water to the heat exchange unit, and the hot water is allowed to flow through the hot water supply pipe. A first supply state in which hot water is supplied to the heat exchange unit assuming that the temperature is equal to or higher than a required temperature, and a second supply state in which hot water is supplied to the heat exchange unit regardless of the temperature of the hot water flowing through the hot water supply pipe When the operation control unit performs the operation in the temperature limit mode, the operation control unit switches the operation unit to the first supply state and performs the operation in the temperature non-limit mode. The point is to switch the operation unit to the second supply state.

  According to this characteristic configuration, the hot water supply pipe connected to the high-temperature water utilization terminal need only include a single hot water supply pipe, and the configuration can be simplified. Even with a single hot water supply pipe, the hot water supplied to the hot water supply pipe can be switched to whether the hot water is higher than the required temperature or whether hot water is supplied to the hot water supply pipe regardless of the hot water temperature. The switching between the first supply state and the second supply state can be appropriately performed, and the switching between the temperature limit mode and the temperature non-limit mode can be appropriately performed with a simple configuration.

  A further characteristic configuration of the high-temperature water use terminal according to the present invention is that an artificially operated mode command unit is provided for commanding the operation control unit to operate in the temperature non-limiting mode.

  According to this feature configuration, when the user commands the temperature non-limiting mode using the mode command unit, the operation control unit performs the operation in the temperature non-limiting mode. Therefore, it can be left to the user's selection at which timing to execute the temperature non-limit mode, and the temperature non-limit mode can be suppressed from being executed when the user does not intend, User convenience can be improved.

Schematic showing the overall configuration of the heat supply equipment Schematic configuration diagram of bathroom dryer Schematic diagram showing the main parts of the heat supply equipment in the heating supply mode and the temperature limit mode Schematic diagram showing the main parts of the heat supply equipment in the non-heating supply mode and the temperature non-limitation mode Flow chart showing mode selection in unit side control unit Flow chart showing mode selection in terminal side control unit The figure which shows the principal part of the heat supply equipment in another embodiment. Schematic configuration diagram of desiccant equipment (dehumidification operation) Schematic configuration of desiccant device (humidification operation)

DESCRIPTION OF EMBODIMENTS An embodiment of a heat supply facility equipped with a high-temperature water use terminal according to the present invention will be described based on the drawings.
As shown in FIG. 1, the heat supply facility 100 collects heat generated in the combined heat and power supply device 1 that generates electric power and heat, the hot water storage tank 2, and the combined heat and power supply device 1, and supplies it as hot water to the hot water storage tank 2. An exhaust heat recovery unit 3 that stores hot water, a hot water supply unit 4 that supplies hot water generated using hot water stored in the hot water storage tank 2 as a heat source to the low-temperature water use terminal 14 and the high-temperature water use terminal 15, and the hot water supply unit A low-temperature water use terminal 14 and a high-temperature water use terminal 15 that are operated using the hot water supplied at 4 are provided. This heat supply facility 100 allows fluid to flow through the first unit Y1 provided with the combined heat and power supply device 1, the second unit Y2 provided with the hot water storage tank 2, the bathtub 13, the low-temperature water use terminal 14, and the high-temperature water use terminal 15. It is comprised by connecting by the flow path etc. to be made.

  Examples of the cogeneration device 1 include an engine-driven power generation device that combines a power generator and a gas engine that drives the power generator, a power generation device that includes a polymer electrolyte fuel cell, and a solid oxide fuel cell. Various cogeneration devices such as a power generation device provided can be applied. The heat supply facility 100 includes an inverter 6 that links the power generated by the combined heat and power supply device 1 to the commercial power system 8. The heat and power supply device 1 and the commercial power system 8 are connected to the power supply line 7. Are electrically connected.

  The exhaust heat recovery unit 3 includes a first circulation path J1 that circulates an exhaust heat recovery fluid between the combined heat and power supply device 1 and the exhaust heat heat exchanger 9. In the first circulation path J1, a first circulation pump P1 is provided in a return-side flow path portion from the exhaust heat exchanger 9 to the combined heat and power supply device 1. The exhaust heat recovery unit 3 operates the first circulation pump P1 and causes the exhaust heat recovery fluid to flow through the first circulation path J1, thereby recovering the heat generated in the combined heat and power supply device 1. Is circulated and supplied to the exhaust heat exchanger 9. Thereby, the exhaust heat heat exchanger 9 is configured to be able to heat the hot and cold water supplied in the second circulation path J2 by the exhaust heat recovery fluid that has recovered the heat generated in the combined heat and power supply device 1.

  The exhaust heat recovery unit 3 supplies water extracted from the lower part of the hot water storage tank 2 to the exhaust heat exchanger 9 in addition to the first circulation path J1, and the hot water heated by the exhaust heat exchanger 9 is supplied to the exhaust heat recovery unit 3. A second circulation path J <b> 2 that returns to the upper part of the hot water storage tank 2 is provided. The second circulation path J2 is a second flow path section through which water (hot water) flows in the order of the first flow path section R1 for taking out water from the lower part of the hot water storage tank 2, the exhaust heat exchanger 9 and the auxiliary heating section 10. R2 and a third flow path part R3 for returning the water (hot water) passed through the second flow path part R2 to the upper part of the hot water storage tank 2 are provided. The auxiliary heating unit 10 includes, for example, a combustion device such as a burner, and a heat exchange unit that exchanges heat between the heat obtained by the combustion device and the supplied hot water, and the heat obtained by the combustion device. It is comprised so that warm water may be heated.

  A fourth flow path portion R4 for supplying water to the hot water storage tank 2 is connected to a middle portion of the first flow path portion R1, and a first check valve G1 is provided in the middle portion of the fourth flow path portion R4. It has been. Thereby, the hot water storage tank 2 is supplied with water by the fourth flow path part R4 and the first flow path part R1. The second flow path portion R2 is provided with a second circulation pump P2, an exhaust heat exchanger 9, an auxiliary heating unit 10, and a first on-off valve K1 in order from the upstream side in the flow direction of water (warm water). Yes. A second on-off valve K2 is provided in the middle of the third flow path part R3.

  In this heat supply facility 100, in cooperation with the second circulation path J2, the third circulation path J3 that takes out hot water stored in the hot water storage tank 2 and circulates and supplies it to the first heat radiating section 11 and the second heat radiating section 12 is provided. It has. The third circulation path J3 includes a fifth flow path portion R5 including the first heat radiating portion 11 and a sixth flow path portion R6 including the second heat radiating portion 12. The fifth flow path part R5 is branched from the connection point between the second flow path part R2 and the third flow path part R3, and joins the connection point between the first flow path part R1 and the second flow path part R2. It is connected. A first heat radiating part 11 and a third on-off valve K3 are provided in the middle of the fifth flow path part R5 in order from the upstream side in the direction of hot water flow. The sixth flow path part R6 is branched and connected from the upstream part in the flow direction of the hot water with respect to the first heat radiating portion 11 in the fifth flow path part R5, and from the third on-off valve K3 in the fifth flow path part R5. Is also joined and connected to the downstream portion of the hot water flow direction. A second heat radiating portion 12 and a fourth on-off valve K4 are provided in the middle of the sixth flow path portion R6 in order from the upstream side in the hot water flow direction.

  In this heat supply facility 100, not only hot water stored in the hot water storage tank 2 is supplied to the first heat radiating unit 11 and the second heat radiating unit 12, but hot water stored in the hot water storage tank 2 can be used to supply hot water. It is configured. In the third flow path part R3 connected to the upper part of the hot water storage tank 2, a seventh flow path part R7 is branched and connected to a part between the hot water storage tank 2 and the second on-off valve K2, and the seventh flow path part. A hot water tap 16 is provided at the downstream end of the hot water flow direction in R7. In the middle of the seventh flow path part R7, an eighth flow path part R8 branched and connected from the upstream part in the direction of water flow with respect to the first check valve G1 in the fourth flow path part R4 is joined and connected. The 1st three-way valve S1 is provided in the joint connection location. A second check valve G2 is provided in the middle of the eighth flow path portion R8. Thereby, the hot water taken out from the upper part of the hot water storage tank 2 is mixed with the water supplied through the fourth flow path part R4 and the eighth flow path part R8 to obtain the required hot water supply temperature. Hot water is supplied to the hot water tap 16 through the seven flow path portions R7.

  The heat supply facility 100 is configured not only to supply hot water to the hot water tap 16 but also to perform hot water filling of the bathtub 13 using hot water stored in the hot water storage tank 2. In the seventh flow path portion R7, a ninth flow path portion R9 is branched from the portion between the first three-way valve S1 and the hot water tap 16, and the ninth flow path portion R9 is connected to the bathtub 13 and the first heat radiation. The 4th circulation path J4 which circulates the hot water of the bathtub 13 between the part 11 is joined and connected. A fifth on-off valve K5 is provided in the middle of the ninth flow path portion R9. Moreover, the 3rd circulation pump P3 is provided in the side which supplies the hot water from the bathtub 13 to the 1st thermal radiation part 11 in the 4th circulation path J4. Thereby, hot water is supplied to the ninth flow path part R9 from the middle part of the seventh flow path part R7 to which the hot water tap 16 is connected, and is supplied to the fourth circulation path J4 through the ninth flow path part R9. The bath 13 is filled with water. In addition, by operating the third circulation pump P3 to circulate hot water in the bathtub 13 through the fourth circulation path J4, the fourth heat is supplied by the hot water supplied in the fifth flow path part R5 in the first heat radiating part 11. The hot water in the bathtub 13 supplied by the circulation path J4 is heated, and the heated hot water is circulated and supplied to the bathtub 13 so that the hot water in the bathtub 13 is tracked.

  In this heat supply facility 100, the fifth circulation path J5 for circulating hot water between the second heat radiating unit 12 and the low temperature water use terminal 14 and the hot water between the second heat radiating unit 12 and the high temperature water use terminal 15 are used. Is provided with a sixth circulation path J6. Since the fifth circulation path J5 and the sixth circulation path J6 circulate and supply hot water to the common second heat radiating section 12, the forward common flow path portion 17 and the return common flow path portion 18 are connected to each other. I have. The forward side common flow path part 17 is branched and connected to a low temperature side forward flow path part 19 connected to the low temperature water use terminal 14 and a high temperature side forward flow path part 20 connected to the high temperature water use terminal 15. . A low temperature side return flow path portion 21 connected to the low temperature water use terminal 14 and a high temperature side return flow path portion 22 connected to the high temperature water use terminal 15 are joined and connected to the return side common flow path portion 18. ing. The return side common flow path portion 18 is provided with an expansion tank 23 and a fourth circulation pump P4 in order from the upstream side in the direction of flow of the hot water. Further, a sixth on-off valve K6 is provided in the middle of the low temperature side forward flow path part 19, and a seventh open / close valve K7 is provided in the middle of the high temperature side forward flow path part 20. Although illustration is omitted, the branch from the forward side common flow path part 17 to the low temperature side forward flow path part 19 and the high temperature side forward flow path part 20, the sixth on-off valve K 6, and the seventh on-off valve K 7 These structures can be provided by providing the hot water header with an intermittent function. Moreover, about the confluence | merging of the low temperature side return flow path part 21 and the high temperature side return flow path part 22 with respect to the return side common flow path part 18, by providing a hot water header, those structures can be provided.

  The low-temperature water use terminal 14 is supplied with low-temperature water (for example, 40 ° C. or 60 ° C.) and is operated using the low-temperature water. For example, a floor heating device or the like is used. Further, the high-temperature water use terminal 15 is operated using the high-temperature water supplied with high-temperature water (for example, 75 ° C. or 80 ° C.) that is higher in temperature than the low-temperature water use terminal 14. A device or the like is used.

  In this embodiment, since the bathroom drying apparatus 200 is used as the high-temperature water use terminal 15, the bathroom drying apparatus 200 will be described with reference to FIG. The bathroom drying apparatus 200 includes a terminal body 201 on a ceiling 203 of a bathroom 202. The terminal body 201 receives warm water supplied from the outside and supplies it to the heat exchanging unit 204, and a circulation path for supplying air sucked from the bathroom 202 to the heat exchanging unit 204 and returning it into the bathroom 202 206, a suction fan 207 that circulates air in the bathroom 202 through the circulation path 206, an exhaust path 208 that exhausts the air sucked from the bathroom 202 to the outside, and air that is sucked from the bathroom 202 through the exhaust path 208 And an exhaust fan 209 for exhausting the air.

  The hot water receiving unit 205 includes a single hot water supply pipe 210 connected to the inlet side of the heat exchange unit 204, and this hot water supply pipe 210 is the high temperature side forward flow path portion 20 in FIG. . The hot water receiving unit 205 is configured to receive the hot water supplied from the hot water supply pipe 210 regardless of the hot water temperature and supply the hot water to the heat exchanging unit 204. A thermal valve 211 is provided in the middle of the hot water supply pipe 210. In order to discharge the hot water supplied to the heat exchanging section 204 to the outside, a single hot water discharge pipe 212 is connected to the outlet side of the heat exchanging section 204, and this hot water discharge pipe 212 is connected to the high temperature in FIG. A side return flow path portion 22 is formed. In this way, the bathroom drying apparatus 200 receives the hot water from the second heat radiating unit 12 through the hot water supply pipe 210 and returns the hot water to the second heat radiating unit 12 through the hot water discharge pipe 212.

  As shown in FIG. 1, the heat supply facility 100 issues a unit-side control unit 5 that controls the operation of the first unit Y1 and the second unit Y2, and an operation command for the first unit Y1 and the second unit Y2. A unit-side remote controller (not shown) including an operation command unit and the like is provided so as to be able to communicate, and the unit-side control unit 5 is configured to perform the first unit Y1 and the second unit based on various information from the unit-side remote controller. The operation of the unit Y2 is controlled. In this heat supply equipment 100, since the high temperature water use terminal 15 and the low temperature water use terminal 14 are connected, the unit-side control unit 5 determines the operation request from these hot water use terminals, the required temperature in the operation, and the like. Based on the information, the operation of the first unit Y1 and the second unit Y2 is controlled. Therefore, the unit-side control unit 5 has a terminal-side control unit 213 (corresponding to the operation control unit) and a terminal-side remote control 214 provided in those hot water use terminals in order to acquire information such as operation requests and required temperatures. It is configured to communicate freely. In FIG. 1, only the terminal-side control unit 213 and the terminal-side remote controller 214 provided in the high-temperature water use terminal 15 are illustrated, and the terminal-side control unit and the terminal-side remote control provided in the low-temperature water use terminal 14 are not shown. ing. Moreover, although illustration is abbreviate | omitted, in order to acquire information, such as the request | requirement temperature in the operation request | requirement in the operation of the hot water filling to the bathtub 13 or the hot water pursuit in the bathtub 13, and the unit side control part 5 It is configured to communicate with the remote control.

Hereinafter, the operation of the heat supply facility 100 will be described.
The unit-side control unit 5 includes a hot water storage operation for storing hot water in the hot water storage tank 2, a hot water supply operation for supplying hot water to the hot water tap 16, a hot water operation for performing hot water filling of the bathtub 13, a low temperature water use terminal 14 and a high temperature water use terminal. 15 is configured to perform various operations such as a warm water supply operation for supplying warm water to 15.

(Hot water storage operation)
The hot water storage operation is performed during operation of the combined heat and power supply apparatus 1 and is an operation in which the heat generated in the combined heat and power supply apparatus 1 is stored as hot water in the hot water storage tank 2. Incidentally, it is possible to appropriately change the timing at which the hot water storage operation is started. For example, when the combined heat and power supply device 1 is started, the hot water storage operation can also be started. In addition, the timing at which the hot water storage operation is finished can be appropriately changed. For example, the unit-side control unit 5 is based on detection information of a temperature sensor (not shown) provided in the hot water storage tank 2. When it is determined that the amount of hot water stored in the hot water storage tank 2 is full, the hot water storage operation can be terminated.

  As shown in FIG. 1, the unit-side control unit 5 operates the first circulation pump P1, and uses the first circulation path J1 to recover the heat generated in the combined heat and power supply device 1 to exhaust heat recovery fluid. The supply is circulated to the exchanger 9. And the unit side control part 5 opens the 1st on-off valve K1 and the 2nd on-off valve K2, operates the 2nd circulation pump P2, and the hot water taken out from the lower part of the hot water storage tank 2 by the 2nd circulation path J2 is carried out. The hot water supplied to the exhaust heat exchanger 9 and passed through the exhaust heat exchanger 9 is returned to the upper part of the hot water storage tank 2. As a result, in the waste heat exchanger 9, the hot water taken out from the hot water storage tank 2 is heated by the exhaust heat recovery fluid to generate hot water, and the hot water is returned to the upper part of the hot water storage tank 2 so that the hot water storage tank 2 The hot water is stored in the hot water.

  The hot water storage tank 2 is composed of a sealed tank that stores hot water in a state where temperature stratification is formed such that high temperature hot water is positioned in the upper portion and low temperature hot water is positioned in the lower portion. Then, the unit-side control unit 5 controls the rotational speed of the second circulation pump P2 so that the hot water temperature stored in the hot water storage tank 2 is constant at the hot water storage set temperature, thereby allowing the hot water to pass through the second circulation path J2. The flow rate is adjusted. The hot water storage set temperature can be changed and set according to the type of the combined heat and power supply device 1 installed. For example, when an engine-driven power generation device is installed as the cogeneration device 1, the hot water storage set temperature is set to 75 ° C. ing.

(Hot water operation)
The hot water supply operation is an operation in which the operation is started with the opening operation of the hot water tap 16, the operation is stopped with the closing operation of the hot water tap 16, and hot water at the hot water supply set temperature is supplied to the hot water tap 16. The unit-side control unit 5 opens the first three-way valve S1, takes out hot water from the upper part of the hot water storage tank 2 into the third flow path part R3, and draws the hot water into the third flow path part R3 and the seventh flow path part. It is supplied to the hot water tap 16 by R7. And the unit side control part 5 adjusts the amount of water mixed from the 8th flow-path part R8 by controlling the opening degree of 1st three-way valve S1, so that the warm water temperature supplied to the hot-water tap 16 becomes hot-water supply preset temperature. doing.

(Hot water operation)
The hot water filling operation is an operation for filling the bathtub 13 and is basically the same operation as the hot water supply operation. The unit-side control unit 5 performs the fifth on-off valve K5 in addition to the hot water supply operation. Is opened, the hot water in the seventh flow path part R7 is supplied to the fourth circulation path J4 by the ninth flow path part R9, and the hot water is supplied to the bathtub 13 through the fourth circulation path J4. . In this case, the opening of the first three-way valve S1 is controlled and mixed from the eighth flow path part R8 so that the hot water temperature supplied to the bathtub 13 becomes the hot water set temperature by the unit-side control unit 5. The amount of water is adjusted.

(Hot water supply operation for remembrance)
This hot water supply operation for remedy is started by a remedy request from the bathroom remote controller, and is stopped by finishing the remedy of hot water in the bathtub 13. The unit-side controller 5 opens the first on-off valve K1, the second on-off valve K2, and the third on-off valve K3 to operate the second circulation pump P2, and the hot water taken out from the upper part of the hot water storage tank 2 is third. A part of the hot water that is supplied to the first heat radiating part 11 through the circulation path J3 and passes through the first heat radiating part 11 is returned to the lower part of the hot water storage tank 2, and the remaining part of the hot water is circulated by the second circulation path J2. ing. And the unit side control part 5 operates the 3rd circulation pump P3, and circulates the hot water in the bathtub 13 between the bathtub 13 and the 1st thermal radiation part 11 by the 4th circulation path J4. Thereby, the hot water in the bathtub 13 is heated with the hot water taken out from the upper part of the hot water storage tank 2 in the first heat radiating section 11, and the heated hot water is returned into the bathtub 13. I'm doing a trap. About the hot water temperature supplied to the 1st thermal radiation part 11, the temperature which can heat the hot water in the bathtub 13 to desired temperature is set, for example. When the hot water temperature stored in the hot water storage tank 2 is lower than the set temperature, the unit-side control unit 5 performs heating by the auxiliary heating unit 10 and the hot water heated by the auxiliary heating unit 10 And hot water taken out from the hot water storage tank 2 are mixed, so that hot water not lower than the set temperature is supplied to the first heat radiating section 11.

(Hot water supply operation for hot water use terminals)
As the hot water supply operation for the hot water use terminal, the hot water stored in the hot water storage tank 2 is not supplied to the first heat radiating unit 11 but the hot water stored in the hot water storage tank 2 is supplied to the second heat radiating unit 12. Like to do. In this case, the operation is started by an operation request from the low temperature water use terminal 14 and the high temperature water use terminal 15, and the operation is stopped by an operation end command from the low temperature water use terminal 14 and the high temperature water use terminal 15. In this way, the unit-side control unit 5 performs the hot water supply operation when operating the low temperature water use terminal 14 and the hot water use terminal of the high temperature water use terminal 15.

(Hot water supply operation for low temperature water use terminal)
First, the case where the low-temperature water utilization terminal 14 is operated will be described. The unit-side controller 5 opens the first on-off valve K1, the second on-off valve K2, and the fourth on-off valve K4 to operate the second circulation pump P2, and the hot water taken out from the upper part of the hot water storage tank 2 is third. A part of the hot water that has been supplied to the second heat radiating part 12 by the circulation path J3 and passed through the second heat radiating part 12 is returned to the lower part of the hot water storage tank 2, and the remaining part of the hot water is circulated by the second circulation path J2. ing. The unit-side control unit 5 opens the sixth on-off valve K6 to operate the fourth circulation pump P4, and circulates hot water between the low temperature water use terminal 14 and the second heat radiating unit 12 through the fifth circulation path J5. I am letting. Thereby, hot water is heated with the hot water taken out from the upper part of the hot water storage tank 2 in the 2nd thermal radiation part 12, and the heated hot water is supplied to the low temperature water utilization terminal 14 as warm water.

  Since the low temperature water use terminal 14 receives supply of warm water heated by the second heat radiating unit 12, operation is performed using the warm water. For example, if the low-temperature water use terminal 14 is a floor heating device, the floor heating device performs a floor heating operation for supplying the warm water to the floor heating panel when supplied with hot water.

  About the hot water temperature supplied to the 2nd thermal radiation part 12, in order to perform the driving | operation, the low temperature water utilization terminal 14 receives the supply of low temperature water (for example, 40 degreeC and 60 degreeC), and operates using the low temperature water. The hot water temperature supplied to the second heat radiating unit 12 is set to a set temperature for low temperature water (for example, 40 ° C. or 60 ° C.). Regarding the setting of the set temperature for low-temperature water, the unit-side control unit 5 acquires information on the required temperature of the low-temperature water use terminal 14 through communication from a terminal-side remote controller (not shown) of the low-temperature water use terminal. The set temperature for low-temperature water is set according to the required temperature. When the temperature of the hot water stored in the hot water storage tank 2 is equal to or higher than the set temperature for low temperature water, the unit-side control unit 5 does not perform heating by the auxiliary heating unit 10 and uses the hot water in the hot water storage tank 2 as it is as the second heat release. It supplies to the part 12. When the hot water temperature stored in the hot water storage tank 2 is lower than the set temperature for low-temperature water, the unit-side control unit 5 performs heating by the auxiliary heating unit 10 and the hot water heated by the auxiliary heating unit 10 And the hot water taken out from the hot water storage tank 2 are mixed so that the mixed hot water is at or above the set temperature for low-temperature water, and the mixed hot water at or above the set temperature for low-temperature water is supplied to the second heat radiating unit 12.

(Hot water supply operation for high temperature water use terminal)
Next, the case where the high temperature water utilization terminal 15 is operated is demonstrated. The unit-side controller 5 opens the first on-off valve K1, the second on-off valve K2, and the fourth on-off valve K4 to operate the second circulation pump P2, and the hot water taken out from the upper part of the hot water storage tank 2 is third. A part of the hot water that has been supplied to the second heat radiating part 12 by the circulation path J3 and passed through the second heat radiating part 12 is returned to the lower part of the hot water storage tank 2, and the remaining part of the hot water is circulated by the second circulation path J2. ing. The unit-side control unit 5 opens the seventh on-off valve K7 to operate the fourth circulation pump P4, and circulates hot water between the high-temperature water use terminal 15 and the second heat radiating unit 12 through the sixth circulation path J6. I am letting. Thereby, hot water is heated with the hot water taken out from the upper part of the hot water storage tank 2 in the 2nd thermal radiation part 12, and the heated hot water is supplied to the high temperature water utilization terminal 15 as warm water.

  The high-temperature water use terminal 15 is usually configured to perform operation using the high-temperature water by receiving supply of high-temperature water (for example, 75 ° C. or 80 ° C.). In order to do so, high-temperature water (for example, 75 ° C. or 80 ° C.) is required as the hot water temperature supplied from the second unit Y2 to the high-temperature water utilization terminal 15. Therefore, the hot water temperature supplied to the second heat radiating unit 12 is the high temperature water (for example, 75 ° C. or 80 ° C.) serving as the high temperature water set temperature, and the hot water temperature stored in the hot water storage tank 2 is higher than the high temperature water set temperature. When the temperature is low, it is necessary to perform heating by the auxiliary heating unit 10. However, if heating is always performed by the auxiliary heating unit 10, not only the hot water stored in the hot water storage tank 2 can be used effectively, but also the energy consumption increases accordingly.

  Therefore, in this embodiment, in order to operate the hot water use terminal 15 while effectively using the hot water stored in the hot water storage tank 2, the unit-side control unit 5 performs the hot water supply terminal 15 in the hot water supply operation. As a supply mode for supplying hot water to the heating system, a heating supply mode in which heating is performed by the auxiliary heating unit 10 and a non-heating supply mode in which heating is not performed by the auxiliary heating unit 10 are configured to be executable.

(Heating supply mode)
The heating supply mode will be described with reference to FIGS. FIG. 3 schematically illustrates the main part in FIG. 1, and a portion through which a fluid flows and a device to be operated are indicated by bold lines. The unit side control unit 5 performs heating by the auxiliary heating unit 10, mixes the hot water heated by the auxiliary heating unit 10 and the hot water taken out from the hot water storage tank 2, and sets the mixed hot water to a set temperature for high-temperature water. As described above, hot water equal to or higher than the set temperature for high-temperature water is supplied to the second heat radiating unit 12. Thereby, in the 2nd thermal radiation part 12, hot water is heated with the high temperature water, and high temperature water (for example, 75 degreeC and 80 degreeC: this temperature is "required temperature" demonstrated previously) can be produced | generated. The high-temperature water is supplied to the high-temperature water use terminal 15 through the sixth circulation path J6. In this way, in the hot water supply operation in the heating supply mode, the hot water temperature supplied to the second heat radiating unit 12 is changed to the set temperature for high temperature water (for example, 75 ° C. or 80 ° C.) by performing heating by the auxiliary heating unit 10. As described above, heated water (for example, 75 ° C. or 80 ° C.) is generated using the warm water heated by the auxiliary heating unit 10 as a heat source, and the heated warm water is supplied to the high-temperature water use terminal 15. And the warm water supply part 4 is comprised from the 2nd circulation path J2, the 3rd circulation path J3, the 6th circulation path J6, etc., and the unit side control part 5 is the single connected to the high temperature water utilization terminal 15. The hot water supply section 4 is switched to the first supply state in which heated hot water is supplied through the hot water supply pipe 210 (the high temperature side forward flow path portion 20).

(Non-heating supply mode)
The non-heating supply mode will be described with reference to FIGS. FIG. 4 schematically shows the main part in FIG. 1, and the parts through which the fluid flows and the devices to be operated are indicated by bold lines. The unit-side control unit 5 does not perform heating by the auxiliary heating unit 10 and supplies the hot water taken out from the hot water storage tank 2 to the second heat radiating unit 12 as it is. Accordingly, the temperature of the hot water supplied to the second heat radiating unit 12 may be less than the temperature of the high temperature water (for example, 75 ° C. or 80 ° C.). Thereby, in the 2nd thermal radiation part 12, hot water can be heated with the warm water of the hot water storage tank 2, and warm water can be produced | generated, and the warm water is supplied to the high temperature water utilization terminal 15 by the 6th circuit J6. As described above, in the hot water supply operation in the non-heating supply mode, the heating by the auxiliary heating unit 10 is not performed, so that the second heat radiating unit 12 generates non-heating hot water using the hot water in the hot water storage tank 2 as a heat source. Non-heated hot water is supplied to the high-temperature water use terminal 15. The unit-side control unit 5 puts the hot water supply unit 4 into a second supply state in which unheated hot water is supplied through a single hot water supply pipe 210 (high temperature side forward flow path part 20) connected to the high temperature water use terminal 15. Switching.

(Operation of high-temperature water terminal)
As described above, when the hot water is supplied to the high temperature water use terminal 15, the second unit Y2 side performs the hot water supply operation in the heating supply mode and the hot water supply operation in the non-heating supply mode by the unit side control unit 5. Configured to be executable. Therefore, in order to operate the high temperature water use terminal 15 in both the hot water supply operation in the heating supply mode and the hot water supply operation in the non-heating supply mode, the terminal side control unit 213 performs the operation of the high temperature water use terminal 15. A temperature limiting mode for operating the operation unit when the hot water temperature received by the hot water receiving unit 205 is equal to or higher than the required temperature, and stopping the operation unit when the received hot water temperature is lower than the required temperature; It is configured to be able to execute a temperature non-restricted mode of operation regardless of the hot water temperature received by the receiving unit 205. Hereinafter, the high-temperature water use terminal 15 will be described as the bathroom drying apparatus 200.

(Temperature limit mode)
First, the temperature limit mode will be described with reference to FIGS. The terminal-side control unit 213 assumes that the hot water temperature received by the hot water supply pipe 210 is high-temperature water that is equal to or higher than the required temperature (for example, 75 ° C. or 80 ° C.) and opens the thermal valve 211 to exchange heat of the high-temperature water. The hot water supplied to the unit 204 and passed through the heat exchanging unit 204 is discharged through the hot water discharge pipe 212. Thereby, in the heat exchange part 204, the air which flows through the circulation path 206 can be heated with the supplied high temperature water (for example, 75 degreeC or 80 degreeC). The terminal-side control unit 213 operates the suction fan 207 to heat a part of the air sucked from the bathroom 202 by the circulation path 206 in the heat exchanging unit 204 and return the heated air to the bathroom 202. I have to. The terminal-side control unit 213 not only operates the suction fan 207 but also operates the exhaust fan 209 to exhaust part of the air sucked from the bathroom 202 through the exhaust path 208 to the outside. In this way, the terminal-side control unit 213, when the hot water temperature received by the hot water supply pipe 210 is high-temperature water that is equal to or higher than the required temperature (for example, 75 ° C. or 80 ° C.), In addition, by operating the operation unit such as the exhaust fan 209 and heating a part of the air sucked from the bathroom 202 by the heat exchange unit 204 and returning it to the bathroom 202, the remaining part of the air is exhausted to the outside. To do dry operation.

  In this temperature limit mode, since the hot water supplied to the heat exchange unit 204 is high-temperature water (for example, 75 ° C. or 80 ° C.), the terminal-side control unit 213 sets the temperature of the air returned to the bathroom 202 by the high-temperature water. The rotational speeds of the suction fan 207 and the exhaust fan 209 are controlled so as to heat to the set temperature for temperature restriction. The set temperature for temperature limitation can be set according to the set temperature for operation set by the terminal-side remote controller, or can be set in advance by experiments or the like. In this temperature limit mode, since the hot water temperature received by the hot water supply pipe 210 is high-temperature water that is equal to or higher than the required temperature (for example, 75 ° C. or 80 ° C.), the terminal-side control unit 213 is connected to the hot water supply pipe 210. If the temperature of the hot water supplied is less than the required temperature, the operation unit is stopped and a high temperature water request command for supplying high temperature water at the required temperature to the unit side control unit 5 is performed. Yes. In addition, for example, the terminal-side control unit 213 determines that the hot water temperature supplied by the hot water supply pipe 210 is lower than the required temperature or the hot water supplied by the hot water supply pipe 210 even if a high temperature water request command is issued. If the state where the temperature is lower than the required temperature continues, the thermal valve 211 can be closed to stop the operation of the high-temperature water use terminal 15. In this way, the terminal-side control unit 213, when the hot water temperature received by the hot water supply pipe 210 is high-temperature water that is equal to or higher than the required temperature (for example, 75 ° C. or 80 ° C.), In addition, the operation unit such as the exhaust fan 209 is operated to switch to the first supply state in which hot water is supplied to the heat exchange unit 204. In addition, the terminal-side control unit 213 limits the operation of the driving operation unit to stop the driving operation unit when the hot water temperature received by the hot water supply pipe 210 is lower than a required temperature (for example, 75 ° C. or 80 ° C.). Added.

  Incidentally, when the unit-side control unit 5 receives the high temperature water request command, the heating by the auxiliary heating unit 10 is started if the heating by the auxiliary heating unit 10 is not performed, and the heating by the auxiliary heating unit 10 is performed. The auxiliary heating unit 10 is controlled so as to increase the amount of heating when it is in the middle, for example, by supplying high-temperature water (for example, 75 ° C. or 80 ° C.) having a required temperature to the high-temperature water use terminal 15.

(Temperature unrestricted mode)
Next, the temperature non-limiting mode will be described with reference to FIGS. Regardless of the hot water temperature received by the hot water supply pipe 210, the terminal-side control unit 213 opens the thermal valve 211 to supply the hot water to the heat exchanging unit 204, and the hot water that has passed through the heat exchanging unit 204 is warm water. A discharge pipe 212 is used for discharge. Thereby, in the heat exchanging part 204, the air flowing through the circulation path 206 can be heated with the supplied hot water. The terminal-side control unit 213 operates the suction fan 207 to heat a part of the air sucked from the bathroom 202 by the circulation path 206 in the heat exchanging unit 204 and return the heated air to the bathroom 202. I have to. The terminal-side control unit 213 not only operates the suction fan 207 but also operates the exhaust fan 209 to exhaust part of the air sucked from the bathroom 202 through the exhaust path 208 to the outside. In this way, the terminal-side control unit 213 operates part of the air sucked from the bathroom 202 by operating the operation units such as the thermal valve 211, the suction fan 207, and the exhaust fan 209. While being heated at 204 and returned to the bathroom 202, a drying operation for exhausting the remaining part of the air to the outside is performed.

  In this temperature non-restriction mode, since the operation is performed regardless of the temperature of the hot water supplied to the heat exchange unit 204, the air heated in the heat exchange unit 204 cannot be heated to the temperature restriction set temperature as in the temperature restriction mode. Sometimes. Therefore, the terminal-side control unit 213, for example, the suction fan 207 so as to heat the temperature of the air returned to the bathroom 202 by the heat exchange unit 204 to a temperature non-limiting set temperature (lower temperature than the temperature limiting set temperature). In addition, the rotational speed of the exhaust fan 209 can be controlled. The temperature non-limiting set temperature is set to be a constant lower temperature than the temperature limiting set temperature as a reference, or lower than the temperature limiting set temperature regardless of the temperature limiting set temperature. Can be set as follows. Further, instead of such control, the terminal-side control unit 213 can also control the rotational speeds of the suction fan 207 and the exhaust fan 209 so as to be a constant rotational speed of the temperature non-limiting rotational speed. In this temperature non-restriction mode, even if the temperature of the hot water supplied to the heat exchanging unit 204 decreases, the terminal-side control unit 213 does not issue a high-temperature water request command to the unit-side control unit 5, and the thermal valve 211 Is kept open. In this way, the terminal-side control unit 213 operates the operation units such as the thermal valve 211, the suction fan 207, and the exhaust fan 209, and heats regardless of the hot water temperature through which the hot water supply pipe 210 flows. Switching to the second supply state in which hot water is supplied to the exchange unit 204 is performed.

  The bathroom drying apparatus 200 performs a bathroom drying operation as one of the operations, but the terminal-side control unit 213 opens, for example, the thermal valve 211 to supply hot water to the heat exchange unit 204. In the bathroom heating operation, after supplying the air, only the suction fan 207 is operated without operating the exhaust fan 209, and the entire amount of air sucked from the bathroom 202 is heated by the heat exchange unit 204 and returned to the bathroom 202. Like to do. Since this bathroom heating operation is also an operation for receiving supply of hot water, the terminal-side control unit 213 is configured to be able to execute a temperature restriction mode and a temperature non-restriction mode when performing the bathroom heating operation. In addition to the bathroom drying operation and the bathroom heating operation, the terminal-side control unit 213 operates only the exhaust fan 209 without supplying hot water to the heat exchanging unit 204, and the air sucked from the bathroom 202 is supplied. Ventilation operation that exhausts a part to the outside is also possible.

(Mode selection)
As described above, the unit-side control unit 5 can execute the heating supply mode and the non-heating supply mode as the hot water supply operation for supplying the hot water to the high-temperature water utilization terminal 15. As operation of the use terminal 15, a temperature limit mode and a temperature non-limit mode can be executed. Therefore, the unit-side control unit 5 selects whether to execute the heating supply mode or the non-heating supply mode when performing the hot water supply operation for supplying the hot water to the high temperature water use terminal 15. In addition, the terminal-side control unit 213 also selects whether to execute the temperature limit mode or the temperature non-limit mode when operating the high-temperature water use terminal 15. Hereinafter, this mode selection will be described.

  As shown in FIGS. 1 and 2, the terminal-side remote controller 214 has an operation command unit 215 for instructing various operation start and operation stop, a display unit 216 for displaying a set temperature, an operation state, and the like, and non-heating supply. And a mode command unit 217 that commands a mode and a temperature non-limiting mode. Thereby, the unit-side control unit 5 and the terminal-side control unit 213 recognize that the non-heating supply mode and the temperature non-limiting mode are instructed by the mode command unit 217 by communication with the terminal-side remote controller 214. Can do. Therefore, as a condition for the unit-side control unit 5 to execute the non-heating supply mode, the non-heating supply mode is instructed by the mode command unit 217, and the condition for the terminal-side control unit 213 to execute the temperature non-limiting mode. As described above, the mode non-limiting mode is commanded by the mode command unit 217.

  Further, if the hot water temperature stored in the hot water storage tank 2 is excessively lower than the required temperature (for example, 75 ° C. or 80 ° C.) for operating the high temperature water use terminal 15, the hot water is generated as a heat source. When hot water is supplied to the high-temperature water use terminal 15, hot water having a temperature that is excessively lower than the required temperature is supplied to the high-temperature water use terminal 15. Therefore, as a condition for the unit-side control unit 5 to execute the non-heating supply mode, the hot water temperature stored in the hot water storage tank 2 is allowed in addition to the non-heating supply mode commanded by the mode command unit 217. The temperature is over the set temperature. As a condition for the terminal-side control unit 213 to execute the temperature non-restriction mode, the temperature non-restriction mode is commanded by the mode command unit 217, and the hot water temperature received by the hot water receiving unit 205 is equal to or higher than the allowable set temperature. It is supposed to be. Regarding the allowable set temperature, a temperature lower than a required temperature (for example, 75 ° C. or 80 ° C.) for operating the high-temperature water use terminal 15 is set. For example, according to the type of the combined heat and power supply device 1 to be equipped The permissible set temperature can be changed. For example, the allowable set temperature is set to 60 ° C. when an engine-driven power generator is installed as the combined heat and power supply device 1.

Hereinafter, the mode selection by the unit-side controller 5 will be described based on the flowchart of FIG.
First, the unit-side control unit 5 determines whether or not the non-heating supply mode is commanded by the mode command unit 217 through communication with the terminal-side remote controller 214 (step # 1). When the non-heating supply mode is commanded, the unit-side control unit 5 determines whether or not the hot water temperature stored in the hot water storage tank 2 is equal to or higher than the allowable set temperature (step # 2). Here, the temperature of the hot water stored in the hot water storage tank 2 is the temperature of the hot water taken out from the hot water storage tank 2. For example, the temperature of the hot water can be obtained by a temperature sensor or the like disposed at the top of the hot water storage tank 2. it can. If the hot water temperature stored in the hot water storage tank 2 is equal to or higher than the allowable set temperature, the unit side controller 5 executes the non-heating supply mode (step # 3). If the non-heating supply mode is not commanded by the mode command unit 217 (No in step # 1), the unit-side control unit 5 executes the heating supply mode (step # 4). In addition, when the hot water temperature stored in the hot water storage tank 2 is lower than the allowable set temperature (No in Step # 2), the unit-side control unit 5 prohibits execution of the non-heating supply mode (Step # 5). . Here, when the unit-side control unit 5 prohibits the execution of the non-heating supply mode, the unit-side control unit 5 performs the hot water supply operation in the heating supply mode, or stops the operation by stopping the hot water supply operation. The user is informed by a notification unit or the like provided in the side remote controller or the terminal side remote controller 214.

Hereinafter, mode selection by the terminal-side control unit 213 will be described based on the flowchart of FIG.
First, the terminal-side control unit 213 determines whether or not the mode non-limiting mode is commanded by the mode command unit 217 through communication with the terminal-side remote controller 214 (step # 11). When the temperature non-restriction mode is instructed, the terminal side control unit 213 determines whether or not the hot water temperature received by the hot water receiving unit 205 is equal to or higher than the allowable set temperature (step # 12). Here, although the illustration of the hot water temperature received by the hot water receiving unit 205 is omitted, the hot water temperature can be acquired by a temperature sensor or the like disposed in the middle of the hot water supply pipe 210. If the hot water temperature received by the hot water receiving unit 205 is equal to or higher than the allowable set temperature, the terminal-side control unit 213 executes the temperature non-limiting mode (step # 13). If the temperature non-restriction mode is not instructed by the mode instruction unit 217 (No in step # 11), the terminal-side control unit 213 executes the temperature restriction mode (step # 14). In addition, when the hot water temperature received by the hot water receiving unit 205 is lower than the allowable set temperature (No in Step # 12), the terminal-side control unit 213 prohibits the execution of the temperature non-restriction mode (Step # 15). Here, when the terminal-side control unit 213 prohibits the execution of the temperature non-restriction mode, the terminal-side control unit 213 performs the operation in the temperature restriction mode or stops the operation of the high-temperature water use terminal 15 by stopping the operation. The notification is provided to the user by a notification unit or the like provided in the unit-side remote controller or the terminal-side remote controller 214.

  If the hot water temperature stored in the hot water storage tank 2 is equal to or higher than the allowable set temperature, the hot water temperature received by the hot water receiving unit 205 is normally higher than the allowable set temperature. If the hot water temperature stored in the hot water storage tank 2 is equal to or higher than the allowable set temperature, the unit-side control unit 5 performs the non-heating supply mode and the terminal-side control unit 213 performs the temperature non-limiting mode.

  Thus, if the temperature condition when the hot water temperature stored in the hot water storage tank 2 is compared with the allowable set temperature is not satisfied, the execution of the non-heating supply mode by the unit side control unit 5 and the terminal side The control unit 213 does not execute the temperature non-restriction mode. Therefore, the user can easily determine whether or not the unit-side control unit 5 can execute the non-heating supply mode and the terminal-side control unit 213 can execute the temperature non-limit mode. A mode display unit 218 is provided on the terminal-side remote controller 214 so that it can be recognized. The mode display unit 218 is turned on when the temperature of the hot water stored in the hot water storage tank 2 is equal to or higher than the allowable set temperature, thereby executing the non-heating supply mode by the unit side control unit 5 and the terminal side control unit. It is displayed that the temperature non-restricted mode 213 can be executed.

[Another embodiment]
(1) In the above embodiment, when the hot water is supplied from the second heat radiating unit 12 of the second unit Y2 to the high temperature water use terminal 15, the single hot water supply pipe 210 (see FIG. 2) is connected to the high temperature water use terminal 15. Connected. Instead of this configuration, for example, the configuration of the hot water supply pipe supplied to the high-temperature water use terminal 15 can be changed as shown in FIG. FIG. 7 schematically shows the connection configuration of the hot water piping between the second unit Y2 and the high temperature water use terminal 15 in FIG.

  As shown in FIG. 7, as a hot water supply pipe connected to the high temperature water use terminal 15, a first supply pipe 219 that supplies heated hot water (high temperature water of a required temperature) and non-heated hot water (supplied regardless of the hot water temperature) are supplied. And a second supply pipe 220 for supplying warm water. Then, the hot water supplied from the first supply pipe 221 that discharges the hot water supplied from the first supply pipe 219 and the hot water supplied from the second supply pipe 220 to the heat exchange unit 204 as hot water discharge pipes that discharge the hot water. And a second discharge pipe 222 for discharging the gas. About the branch of the 1st supply pipe 219 and the 2nd supply pipe 220, and the confluence | merging of the 1st discharge pipe 221 and the 2nd discharge pipe 222, the structure is comprised by providing a hot water header similarly to the said embodiment. Can be provided. As for the second supply pipe 220 and the second discharge pipe 222, for example, a hot water supply pipe and a hot water discharge pipe connected to the low temperature water use terminal 14 are introduced into the high temperature water use terminal 15 as they are to supply hot water and discharge hot water. Can be used as The high-temperature water use terminal 15 is provided with an eighth on-off valve K8 for opening and closing the first supply pipe 219 and a ninth on-off valve K9 for opening and closing the second supply pipe 220. In this case, when the operation in the temperature limit mode is performed, the terminal-side control unit 213 opens the eighth on-off valve K8 to switch the operation unit to the first supply state, and performs the operation in the hot water non-limit mode. In this case, the ninth on-off valve K9 is opened to switch the operation unit to the second supply state.

  Incidentally, in FIG. 7, an eighth on-off valve K8 and a ninth on-off valve K9 are provided at the connection point between the first supply pipe 219 and the second supply pipe 220 on the second unit Y2 side, and the hot water supply section is the eighth. The on-off valve K8 and the ninth on-off valve K9 may be included. In this case, when performing the hot water supply operation in the heating supply mode, the unit-side control unit 5 opens the eighth on-off valve K8 to switch the hot water supply unit to the first supply state, and warm water in the non-heating supply mode. When the supply operation is performed, the ninth on-off valve K9 is opened to switch the hot water supply unit to the second supply state.

(2) Although the example which applied the bathroom drying apparatus 200 as the high temperature water utilization terminal 15 was shown in the said embodiment, the desiccant apparatus which receives supply of warm water, performs dehumidification operation and humidification operation using the warm water, and warm water Other hot water use terminals such as an air conditioner that performs the heating operation and the cooling operation using the hot water can be applied.

  Based on FIG.8 and FIG.9, the case where the desiccant apparatus 300 is applied as the high temperature water utilization terminal 15 is demonstrated. The desiccant device 300 has a desiccant rotor 301 made of a breathable hygroscopic body that is driven to rotate. A gas is passed through the hygroscopic part 302 or the regenerating part 303 of the desiccant rotor 301 so as to be air-conditioned air 304. It is comprised so that it may supply. And the 2nd unit Y2 supplies the warm water produced | generated in the 2nd thermal radiation part 12 to the desiccant apparatus 300, and the desiccant apparatus 300 is comprised so that it may drive | operate using the warm water.

  The desiccant device 300 heats the supplied gas and the gas that has passed through the moisture absorption portion 302 of the desiccant rotor 301 with heat, and the gas that has passed through the first heat exchanger 305 is heated with hot water. A hot water heater 306 (corresponding to a heat exchange unit) and a flow state switching means 307 capable of switching a gas flow state are provided. The hot water heater 306 is configured to heat the gas that has passed through the first heat exchanger 305 with the hot water by supplying the hot water generated by the second heat radiating unit 12. The desiccant device 300 allows the first gas OA, which is the outside air, and the second gas RA, which is the air in the air-conditioning target space 304, to flow to each device as the gas, and passes the first gas OA and the second gas RA. A first fan 308 and a second fan 309 are provided as drive sources for causing the current to flow.

  The flow state switching means 307 includes a first four-way valve 310 and a second four-way valve 311. The flow state switching means 307 switches the state of the first four-way valve 310 and the second four-way valve 311 to determine in what order the first gas OA and the second gas RA pass through which device. Switching. 8 and 9 show the flow state of the first gas OA and the second gas RA, and the flow state switching means 307 includes the first switching state shown in FIG. 8 and the second switching state shown in FIG. It is configured to be switchable between states.

  In the first switching state, as shown in FIG. 8, the flow state switching means 307 switches between the first four-way valve 310 and the second four-way valve 311, so that the moisture absorbing section 302 of the desiccant rotor 301, the first heat exchanger. The first gas OA is passed through in the order of 305 and supplied to the air-conditioning target space 304 as air-conditioning air, and the second gas RA is in order of the first heat exchanger 305, the hot water heater 306, and the regeneration unit 303 of the desiccant rotor 301. Pass through. The first gas OA is dehumidified by the hygroscopic portion 302 of the desiccant rotor 301, and the dehumidified first gas OA is heat-exchanged by the first heat exchanger 305. As a result, the dehumidified first gas OA can be supplied to the air-conditioning target space 304 as air-conditioning air, and the dehumidifying operation of the air-conditioning target space 304 can be performed. The second gas RA that has passed through the first heat exchanger 305 is heated with warm water in the warm water heater 306, and the regeneration of the desiccant rotor 301 in the regeneration unit 303 can be appropriately performed. The second gas RA that has passed through the regeneration unit 303 is exhausted to the outside.

  In the second switching state, as shown in FIG. 9, the flow state switching means 307 switches between the first four-way valve 310 and the second four-way valve 311, so that the first heat exchanger 305, the hot water heater 306, the desiccant The first gas OA is passed in the order of the regeneration unit 303 of the rotor 301 and supplied to the air-conditioning target space 304 as air-conditioning air, and the second gas RA in the order of the moisture absorption unit 302 of the desiccant rotor 301 and the first heat exchanger 305. Pass through. The first gas OA that has passed through the first heat exchanger 305 is heated with hot water in the hot water heater 306 and supplied to the regeneration unit 303 of the desiccant rotor 301. In the regeneration unit 303, the first gas OA is humidified while the regeneration of the desiccant rotor 301 can be appropriately performed. In this way, the humidified first gas OA can be supplied to the air-conditioning target space 304 as air-conditioning air, and the air-conditioning target space 304 can be humidified. Since the second gas RA is dehumidified and heated by the moisture absorption unit 302 of the desiccant rotor 301, the first gas OA can be appropriately heated by the first heat exchanger 305. The second gas RA that has passed through the first heat exchanger 305 is exhausted to the outside.

  In this manner, when the desiccant device 300 is adapted as the high-temperature water use terminal 15, when the hot water is supplied, the hot water is supplied to the hot water heater 306 so that the dehumidifying operation and the humidifying operation are performed. Yes. Therefore, the terminal control unit (not shown) is configured to be able to execute a temperature limit mode and a temperature non-limit mode when performing the dehumidifying operation and the humidifying operation.

(3) In the above embodiment, when supplying hot water using hot water stored in the hot water storage tank 2 as a heat source to the high temperature water use terminal 15, the second heat radiating unit 12 is provided, and the hot water taken out from the hot water storage tank 2 is used. The hot water is heated to generate hot water, and the generated hot water is supplied to the high-temperature water use terminal 15. Instead of this configuration, for example, hot water stored in the hot water storage tank 2 can be supplied as it is to the high temperature water use terminal 15, and the hot water supplied to the high temperature water use terminal 15 uses the hot water in the hot water storage tank 2 as a heat source. What is necessary is just to be a thing, and it can change suitably about the warm water supply structure of how to supply.

(4) In the above embodiment, as a condition for the unit-side controller 5 to execute the non-heating supply mode, the non-heating supply mode is commanded by the mode command unit 217, and hot water is stored in the hot water storage tank 2. The hot water temperature is higher than the allowable set temperature. Instead of this configuration, as a condition for the unit-side control unit 5 to execute the non-heating supply mode, only the non-heating supply mode may be commanded by the mode command unit 217 or hot water storage in the hot water storage tank 2 may be performed. It is good also as that the warm water temperature currently performed is more than allowable setting temperature.
Further, as a condition for the terminal-side control unit 213 to execute the temperature non-restriction mode, only the temperature non-restriction mode may be instructed by the mode command unit 217 or hot water received by the hot water receiving unit 205 It is good also as temperature only being more than allowable setting temperature.

  The present invention receives the supplied hot water at the hot water receiving unit and supplies it to the heat exchanging unit, and supplies the heat exchanging fluid to the heat exchanging unit to perform the driving operation, and the driving operation unit. It is provided with an operation control unit that is operated to operate, and can be applied to various types of high-temperature water terminals that can be operated while effectively utilizing heat.

15 High-temperature water use terminal 200 Bathroom drying device (high-temperature water use terminal)
204 Heat exchange unit 205 Hot water receiving unit 207 Suction fan (driving operation unit)
209 Exhaust fan (operation part)
210 Hot water supply pipe 211 Thermally operated valve (operating part)
213 Terminal side control unit (operation control unit)
217 Mode command unit 219 First supply pipe 220 Second supply pipe 300 Desiccant device (high-temperature water use terminal)
306 Hot water heater (heat exchanger)
307 Flow state switching means (driving unit)
308 First fan (driving unit)
309 Second fan (driving unit)

Claims (5)

The supplied hot water is received by the hot water receiving unit and supplied to the heat exchanging unit, and the driving operation unit that supplies the heat exchange unit with the fluid to be heated to perform the driving operation, and the driving operation unit is operated to operate. And an operation control unit for performing
When the operation control unit performs the operation, when the hot water temperature received by the hot water receiving unit is equal to or higher than the required temperature, the operation control unit is operated to operate, and the received hot water temperature is lower than the required temperature. High temperature water configured to be able to execute a temperature limiting mode in which the operation unit is stopped and a temperature non-limit mode in which the operation unit is operated regardless of the hot water temperature received by the hot water receiving unit. Terminal used.   The operation control unit prohibits operation in the temperature non-restricted mode when the hot water temperature received by the hot water receiving unit is lower than an allowable set temperature set as a temperature lower than the required temperature, and the hot water receiving unit 2. The high-temperature water use terminal according to claim 1, wherein the operation in the temperature non-restricted mode is allowed when the temperature of the hot water received at the temperature is equal to or higher than an allowable set temperature.   The operation operation unit accepts hot water as a hot water supply pipe that supplies the heat exchange unit with the first supply pipe whose hot water temperature to be passed is equal to or higher than a required temperature, and the second hot water is allowed to flow regardless of the hot water temperature. A supply pipe, and is configured to be switchable between a first supply state in which hot water is supplied through the first supply pipe and a second supply state in which hot water is supplied through the second supply pipe. The operation unit is switched to the first supply state when operating in the temperature limit mode, and the operation unit is switched to the second supply state when operating in the temperature non-limit mode. Item 3. The high-temperature water use terminal according to Item 1 or 2.   The operation unit includes a single hot water supply pipe that receives hot water and supplies the hot water to the heat exchange unit, and assumes that the temperature of the hot water flowing through the hot water supply pipe is equal to or higher than a required temperature. Regardless of the temperature of the first water supply state and the temperature of the hot water supply pipe flowing through the hot water supply pipe, it is possible to switch between the second supply state of supplying the hot water to the heat exchanging section, and the operation control section includes: The operation unit is switched to the first supply state when operating in the temperature limit mode, and the operation unit is switched to the second supply state when operating in the temperature non-limit mode. Item 3. The high-temperature water use terminal according to Item 1 or 2.   The high-temperature water utilization terminal according to any one of claims 1 to 4, wherein the operation control unit is provided with an artificially operated mode command unit that commands operation in the temperature non-restricted mode.

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