JP5396371B2 - Hot water heating system - Google Patents

Description

  The present invention relates to a hot water heating system.

  There is known a hot water heating system including a terminal that uses hot water as a heat source and a heat source that supplies hot water to the terminal. In such a hot water heating system, safe hot and efficient central heating is realized by supplying hot water from a single heat source device to various terminals.

  In the terminals used in the hot water heating system as described above, the required temperature of the hot water is different. For example, in a terminal device that uses a relatively low temperature hot water such as a floor heater or a panel radiator, the required temperature of the hot water is about 40 ° C. On the other hand, in a terminal that performs heating using relatively hot water such as a bathroom heater / dryer or a fan convector, the required temperature of hot water is about 80 ° C. As described above, since the required temperature of the hot water differs depending on the terminal, the temperature management of the hot water in the heat source machine is important.

  In Patent Documents 1-3, in one device that performs hot water control of two or more terminals with one heat source device, the temperature of the hot water supplied by the heat source device is controlled in accordance with the terminal device having a high required temperature, In a low terminal, a technique is disclosed in which simultaneous operation of each terminal is appropriately performed by intermittently opening and closing the thermal valve of the hot water circuit.

JP-A-5-60333 JP 2003-21343 A JP-A-6-323557

  In cold regions, panel radiators, which are low-temperature terminals, have been widely used, and are generally used continuously for 24 hours regardless of whether they are sleeping, day or night. For this reason, many houses already have panel radiators. When a new bathroom heater / dryer is installed in a house where a panel radiator is installed, the existing panel radiator will be used as it is, and a new heat source that can be used for each terminal will be installed. Become.

  Many of the existing panel radiators do not have a thermal valve for performing intermittent control of hot water. For this type of panel radiator, it is possible to perform intermittent control of hot water as in the technique of Patent Document 1-3. Can not. If this type of panel radiator and bathroom heater / dryer are operated at the same time, while the bathroom heater / dryer is in operation, the panel radiator cannot be supplied with hot water at an appropriate temperature, which impairs the user's comfort. . Even when a panel radiator not provided with a thermal valve is used, a technique capable of appropriately performing simultaneous operation with a bathroom heating dryer is expected.

  The present invention solves the above problems. In the present invention, in a hot water heating system including a low temperature terminal and a bathroom heating dryer, even when a low temperature terminal without a thermal valve is used, the simultaneous operation with the bathroom heating dryer is appropriately performed. Provide technology that can.

  The present invention relates to a hot water heater comprising a low temperature terminal using hot water as a heat source, a bathroom heating dryer using hot water as a heat source, and a heat source supplying hot water to both the low temperature terminal and the bathroom heating dryer. Embodied as a system. In the hot water heating system, the required temperature of hot water in the bathroom heater / dryer is set higher than the required temperature of hot water in the low temperature terminal. In the hot water heating system, when the bathroom heating dryer starts a heating operation during the operation of the low temperature terminal, the heat source device supplies hot water heated to the required temperature of the bathroom heating dryer, When the bathroom heater / dryer starts the drying operation during the operation of the low temperature terminal, the heat source device supplies hot water heated to the required temperature of the low temperature terminal.

  Usually, the heating operation in the bathroom heating / drying machine is performed for warming the cold bathroom prior to the user's bathing, and thus is performed only for a relatively short time. On the other hand, the drying operation in the bathroom heating dryer is performed for a long time because it is performed to dry the wet bathroom after bathing or to dry laundry in the bathroom. In the above hot water heating system, when the bathroom heater / dryer starts heating operation while the low temperature terminal is in operation, the heat source machine gives priority to the required temperature of the bathroom heater / dryer and supplies hot water heated to the required temperature. To do. In addition, when the bathroom heater / dryer starts the drying operation during the operation of the low temperature terminal, the heat source device gives priority to the required temperature of the low temperature terminal and supplies hot water heated to the required temperature. Therefore, during the drying operation, hot water having a temperature lower than the required temperature is supplied to the bathroom heating dryer. However, the drying operation of the bathroom is performed for a long time, and even if the temperature of the hot water does not reach the required temperature, the drying performance is not greatly affected. In general, the bathroom is unattended during the drying operation of the bathroom, and even if the temperature of the hot water is lower than the required temperature, there is no possibility that the user will feel uncomfortable. For this reason, when a bathroom heating dryer performs a drying operation, even if priority is given to the required temperature of the low temperature terminal, there is no inconvenience to the user.

  In the above hot water heating system, it is possible to continue supplying hot water of an appropriate temperature to the low temperature terminal not only during the period when only the low temperature terminal is operating but also during the drying operation of the bathroom heating dryer for a long time. Even when a low temperature terminal without a thermal valve is used, simultaneous operation of the low temperature terminal and the bathroom heater / dryer can be appropriately performed without impairing the user's comfort.

  The warm water heating system is particularly effective when the low temperature terminal is a panel radiator.

  In cold regions, panel radiators have been widely used in general, but there are many types that do not have a thermal valve that allows intermittent control of hot water. According to the hot water heating system described above, the panel radiator and the bathroom heater / dryer can be used at the same time even when a newly installed bathroom heater / dryer is used in combination with an existing panel radiator not equipped with a thermal valve. You can drive.

  According to the present invention, in a hot water heating system including a low temperature terminal and a bathroom heating dryer, even when a low temperature terminal without a thermal valve is used, simultaneous operation with the bathroom heating dryer is appropriate. Can be done.

The figure which shows the structure of the hot water heating system 10 of Example 1 typically. The figure which shows the structure of the hot water heating system 60 of Example 2 typically.

The main features of the embodiments described below are listed below.
(Feature 1) Hot water used by the hot water heating system is antifreeze.
(Characteristic 2) The required temperature of hot water in the bathroom heater / dryer is 80 ° C.
(Characteristic 3) The required temperature of the panel radiator hot water can be arbitrarily set by the user.

  Embodiments according to the present invention will be described below with reference to the drawings. FIG. 1 shows a hot water heating system 10 according to the present embodiment. The hot water heating system 10 includes a heat source device 12, a floor heater 14, a panel radiator 16, a bathroom heater / dryer 18, a floor warming remote controller 20, a warm water remote controller 22, a bath warming remote controller 24, and the like.

  The heat source unit 12 heats warm water (using antifreeze liquid in this embodiment) by gas combustion and circulates warm water to terminals such as the floor heater 14, the panel radiator 16, and the bathroom heater / dryer 18. The heat source unit 12 includes a hot water tank, a burner, a pump, a controller, and the like. The heat source device 12 drives the hot water stored in the hot water storage tank to the burner by driving the pump, heats it to a target temperature, and sends the heated hot water to each terminal.

  The heat source machine 12 supplies hot water to the hot water going header 28 via the hot water going pipe 26. The floor heater 14, the panel radiator 16, and the bathroom heater / dryer 18 are connected to the warm water header 28 via warm water piping 30, 32, 34, respectively.

  The hot water return pipe 36 from the floor heater 14, the hot water return pipe 38 from the panel radiator 16, and the hot water return pipe 40 from the bathroom heater / dryer 18 are respectively connected to the hot water return header 42. The hot water that is radiated by each terminal and becomes low temperature is returned from the hot water return header 42 to the hot water storage tank of the heat source device 12 through the hot water return pipe 44.

  The floor heater 14 includes a heat transfer pipe laid directly under the floor material, and warms the floor by circulating hot water through the heat transfer pipe. The user operates the floor warming remote controller 20 to instruct the start and end of the heating operation of the floor heater 14 and the necessity of hot dash operation. In the hot dash operation, hot water having a temperature higher than that in the normal heating operation is circulated for a predetermined time (for example, 30 minutes) at the start of the heating operation, thereby quickly warming the floor. The floor warming remote controller 20 can communicate with the controller of the heat source unit 12 via the signal line 46, and transmits the start and end of the heating operation of the floor heating unit 14 and the required temperature of the hot water to the heat source unit 12. In this embodiment, the required temperature of the warm water of the floor heater 14 in the normal heating operation is 40 ° C., and the required temperature of the warm water of the floor heater 14 in the hot dash operation is 80 ° C.

  The panel radiator 16 is installed under the window of the room and warms the room by radiant heat and natural convection. The user operates the hot water remote controller 22 to instruct the start and end of the heating operation of the panel radiator 16. The hot water remote controller 22 can communicate with the controller of the heat source unit 12 via the signal line 48 and transmits the start and end of the heating operation of the panel radiator 16 and the required temperature of the hot water to the heat source unit 12. In this embodiment, the required temperature of the hot water for the panel radiator 16 is set by the user using the hot water remote controller 22. The hot water remote controller 22 can set the required temperature of the hot water in increments of 5 ° C. within a range from 40 ° C. to 80 ° C. In the present embodiment, the panel radiator 16 and the hot water remote controller 22 are existing ones that are conventionally installed in a house, and the panel radiator 16 is not provided with a thermal valve.

  The bathroom heater / dryer 18 is installed in a bathroom and includes a fan and a heat transfer pipe inside. The bathroom heating / drying machine 18 heats and dries the bathroom by driving the fan, sucking in the air in the bathroom, exchanging heat with the hot water flowing through the heat transfer pipe, and sending it back to the bathroom. The user instructs the start and end of the heating operation and the drying operation of the bathroom heater / dryer 18 by operating the bath warming remote controller 24. The bath warming remote controller 24 can communicate with the controller of the heat source unit 12 via the signal line 50 and transmits the heating operation and drying operation start and end of the bathroom heating dryer 18 and the required temperature of the hot water to the heat source unit 12. . In this embodiment, the required temperature of hot water in the bathroom heater / dryer 18 is 80 ° C.

  When any one of the floor heater 14, the panel radiator 16 and the bathroom heater / dryer 18 is operated and the other terminals are not operated, the heat source device 12 is operated. The hot water is heated with the required temperature from the terminal being used as the target temperature, and the hot water heated to the target temperature is sent out. For example, when only the floor heater 14 is operating and the floor heater 14 performs a normal heating operation, the heat source device 12 sends hot water heated to 40 ° C. to the hot water outlet pipe 26. When only the bathroom heater / dryer 18 is in operation, the heat source unit 12 sends hot water heated to 80 ° C. to the hot water outlet pipe 26.

  In cold districts and the like, the panel radiator 16 is continuously operated, and the floor heater 14 and the bathroom heater / dryer 18 are often operated as necessary. Hereinafter, an operation when the operation of the floor heater 14 or the bathroom heater / dryer 18 is started during the operation of the panel radiator 16 will be described.

  When the normal operation of the floor heater 14 is started while the panel radiator 16 is in operation, the heat source unit 12 gives priority to the required temperature of the panel radiator 16. In other words, the hot water is heated to the required temperature set by the hot water remote controller 22, and the hot water is sent to the hot water delivery pipe 26. In this case, when a high required temperature (for example, 60 ° C.) is set by the panel radiator 16, hot water having a temperature exceeding the required temperature of 40 ° C. is supplied to the floor heater 14. However, when a high required temperature is set by the panel radiator 16, the outside air temperature is so low that the entire house is cooled, and in the case of heating by the floor heater 14, the temperature of the hot water is equal to the required temperature. Even if it does not do, since the influence which it has on sensory temperature is not so large, the floor heater 14 and the panel radiator 16 can be operated simultaneously without impairing the comfort of the user.

  When the hot dash operation of the floor heater 14 is started while the panel radiator 16 is in operation, the heat source device 12 gives priority to the required temperature of the floor heater 14. That is, the hot water is heated to 80 ° C., which is the required temperature of the floor heater 14 during the hot dash operation, and the hot water is sent to the hot water outlet pipe 26. In this case, hot water exceeding the required temperature is supplied to the panel radiator 16, but normally the hot dash operation is completed in a short time. Therefore, even if hot water is supplied to the panel radiator 16, the comfort of the user is improved. The floor heater 14 and the panel radiator 16 can be operated simultaneously without significant loss.

  When the heating operation of the bathroom heating / drying machine 18 is started while the panel radiator 16 is in operation, the heat source machine 12 gives priority to the required temperature of the bathroom heating / drying machine 18. That is, the hot water is heated to 80 ° C., which is the required temperature for the heating operation, and the hot water is sent out to the hot water outlet pipe 26. In this case as well, hot water having a temperature exceeding the required temperature is supplied to the panel radiator 16, but normally the heating operation of the bathroom heater / dryer 18 is completed in a short time, and thus hot water is supplied to the panel radiator 16. Even if it is done, the floor heater 14 and the panel radiator 16 can be operated simultaneously without greatly impairing the comfort of the user.

  When the drying operation of the bathroom heater / dryer 18 is started while the panel radiator 16 is in operation, the heat source unit 12 gives priority to the required temperature of the panel radiator 16. In other words, the hot water is heated to the required temperature set by the hot water remote controller 22, and the hot water is sent to the hot water delivery pipe 26. In this case, hot water having a temperature lower than the required temperature is supplied to the bathroom heater / dryer 18. However, the drying operation of the bathroom is performed for a long time, and even if the temperature of the hot water does not reach the required temperature, the drying performance is not greatly affected. In general, the bathroom is unattended during the drying operation of the bathroom, and even if the temperature of the hot water is lower than the required temperature, there is no possibility that the user will feel uncomfortable. For this reason, when the bathroom heater / dryer 18 performs a drying operation, even if priority is given to the required temperature of the panel radiator 16, there is no inconvenience to the user.

  As described above, according to the hot water heating system 10 of the present embodiment, when the panel radiator 16 and the bathroom heater / dryer 18 are operated simultaneously, when the bathroom heater / dryer 18 performs the heating operation, the heat source device 12 is installed in the bathroom. When hot water of 80 ° C., which is a required temperature of the heating / drying machine 18, is supplied and the bathroom heating / drying machine 18 performs a drying operation, the heat source machine 12 supplies hot water of the required temperature of the panel radiator 16. By controlling the temperature of the hot water supplied by the heat source device 12 in this way, the simultaneous operation with the bathroom heater / dryer 18 is appropriately performed even when the panel radiator 16 without the thermal valve is used. be able to.

  FIG. 2 shows a hot water heating system 60 of the present embodiment. Below, about the structure similar to the hot water heating system 10 of 1st Example, the same referential mark is attached | subjected and detailed description is abbreviate | omitted. The hot water heating system 60 includes a heat source device 62, a floor heater 14, a panel radiator 16, a bathroom heater / dryer 18, a floor warming remote controller 20, a warm water remote controller 22, a bath warming remote controller 24, and the like.

  The heat source unit 62 heats warm water (using antifreeze in this embodiment) by gas combustion, and circulates warm water to terminals such as the floor heater 14, the panel radiator 16, and the bathroom heater / dryer 18. The heat source unit 62 includes a hot water tank, a burner, a pump, a controller, and the like. The heat source device 62 drives the hot water stored in the hot water storage tank to the burner by driving the pump, heats it to a target temperature, and sends the heated hot water to each terminal.

  The heat source unit 62 supplies hot water to the low-temperature forward header 66 via the low-temperature forward pipe 64. The floor heater 14 and the panel radiator 16 are connected to the low temperature going header 66 via hot water going piping 30 and 32, respectively. The low temperature going header 66 is provided with a thermal valve corresponding to the hot water going piping 32. The thermal valve of the low temperature header 66 is controlled to be opened and closed by the controller of the heat source unit 62.

  The heat source unit 62 supplies hot water to the high temperature going header 70 via the high temperature going piping 68. A bathroom heater / dryer 18 is connected to the high-temperature going-out header 70 through a hot-water going-out pipe 34.

  The hot water return pipe 36 from the floor heater 14, the hot water return pipe 38 from the panel radiator 16, and the hot water return pipe 40 from the bathroom heater / dryer 18 are connected to the hot water return header 72, respectively. The hot water that is radiated by each terminal and becomes low temperature is returned from the hot water return header 72 to the hot water storage tank of the heat source device 62 via the hot water return pipe 74.

  When any one of the floor heater 14, the panel radiator 16 and the bathroom heater / dryer 18 is operated and the other terminals are not operated, the heat source device 62 is operated. The hot water is heated with the required temperature from the terminal being used as the target temperature, and the hot water heated to the target temperature is sent out.

  When the normal operation of the floor heater 14 is started while the panel radiator 16 is in operation, the heat source unit 62 gives priority to the required temperature of the panel radiator 16. That is, the hot water is heated to the required temperature set by the hot water remote controller 22, and the hot water is sent out to the low temperature outgoing pipe 64. In this case, when a high required temperature (for example, 60 ° C.) is set by the panel radiator 16, hot water having a temperature exceeding the required temperature of 40 ° C. is supplied to the floor heater 14. However, when a high required temperature is set by the panel radiator 16, the outside air temperature is so low that the entire house is cooled, and in the case of heating by the floor heater 14, the temperature of the hot water is equal to the required temperature. Even if it does not do, since the influence which it has on sensory temperature is not so large, the floor heater 14 and the panel radiator 16 can be operated simultaneously without impairing the comfort of the user.

  When the hot dash operation of the floor heater 14 is started while the panel radiator 16 is in operation, the heat source device 62 gives priority to the required temperature of the floor heater 14. That is, the hot water is heated to 80 ° C., which is the required temperature of the floor heater 14 during the hot dash operation, and the hot water is sent to the low temperature outgoing pipe 64. In this case, the heat source unit 12 intermittently controls the hot water supplied to the panel radiator 16 by repeatedly opening and closing the thermal valve of the low-temperature forward header 66. For example, when the required temperature of the panel radiator 16 is 40 ° C., a cycle in which the thermal valve is opened for 10 minutes and then closed for 10 minutes is repeated. When the required temperature of the panel radiator 16 is 60 ° C., the cycle of opening the thermal valve for 15 minutes and then closing for 5 minutes is repeated. Thereby, the floor heater 14 and the panel radiator 16 can be operated simultaneously, without impairing a user's comfort.

  When the heating operation of the bathroom heater / dryer 18 is started while the panel radiator 16 is operating, the heat source device 62 gives priority to the required temperature of the bathroom heater / dryer 18. That is, the hot water is heated to 80 ° C., which is the required temperature for the heating operation, and the hot water is sent to the low temperature forward pipe 64 and the high temperature forward pipe 68. In this case, the heat source device 62 intermittently controls the hot water supplied to the panel radiator 16 by repeatedly opening and closing the thermal valve of the low-temperature forward header 66. For example, when the required temperature of the panel radiator 16 is 40 ° C., a cycle in which the thermal valve is opened for 10 minutes and then closed for 10 minutes is repeated. When the required temperature of the panel radiator 16 is 60 ° C., the cycle of opening the thermal valve for 15 minutes and then closing for 5 minutes is repeated. Thereby, the panel radiator 16 and the bathroom heating dryer 18 can be operated simultaneously, without impairing a user's comfort.

  When the drying operation of the bathroom heater / dryer 18 is started while the panel radiator 16 is in operation, the heat source unit 62 gives priority to the required temperature of the panel radiator 16. In other words, the hot water is heated to the required temperature set by the hot water remote controller 22, and the hot water is sent to the hot water delivery pipe 26. In this case, hot water having a temperature lower than the required temperature is supplied to the bathroom heater / dryer 18. However, the drying operation of the bathroom is performed for a long time, and even if the temperature of the hot water does not reach the required temperature, the drying performance is not greatly affected. In general, the bathroom is unattended during the drying operation of the bathroom, and even if the temperature of the hot water is lower than the required temperature, there is no possibility that the user will feel uncomfortable. For this reason, when the bathroom heater / dryer 18 performs a drying operation, even if priority is given to the required temperature of the panel radiator 16, there is no inconvenience to the user.

  As described above, according to the hot water heating system 60 of the present embodiment, when the panel radiator 16 and the bathroom heater / dryer 18 are operated simultaneously, when the bathroom heater / dryer 18 performs the heating operation, the heat source device 62 is provided in the bathroom. When hot water of 80 ° C., which is a required temperature of the heating / drying machine 18 is supplied and the bathroom heating / drying machine 18 performs a drying operation, the heat source unit 62 supplies hot water of the required temperature of the panel radiator 16. By controlling the temperature of the hot water in this way, simultaneous operation of the panel radiator 16 and the bathroom heater / dryer 18 can be appropriately performed.

  In the above-described embodiment, when the heat source unit 62 sends out hot water having a temperature higher than the required temperature of the panel radiator 16, the thermal valve of the low-temperature forward header 66 is intermittently opened and closed to be supplied to the panel radiator 16. The case where the amount of heat to be adjusted is explained. Instead of such a configuration, for example, a flow rate adjustment valve for adjusting the flow rate of the hot water supplied to the panel radiator 16 is provided in the low temperature header 66 so that the heat source unit 62 is higher than the required temperature of the panel radiator 16. When the hot water is sent out, the amount of heat supplied to the panel radiator 16 can be adjusted by reducing the flow rate of the hot water supplied to the panel radiator 16 by the flow rate adjusting valve.

  As mentioned above, although the Example of this invention was described in detail, these are only illustrations and do not limit a claim. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

  The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology exemplified in this specification or the drawings can achieve a plurality of objects at the same time, and achieving one of the objects itself has technical utility.

DESCRIPTION OF SYMBOLS 10,60 Hot water heating system 12,62 Heat source machine 14 Floor heater 16 Panel radiator 18 Bathroom heating dryer 20 Floor warming remote control 22 Hot water remote control 24 Bath warming remote control 26,30,32,34 Hot water going piping 28 Hot water going header 36, 38, 40, 44, 74 Hot water return pipes 42, 72 Hot water return headers 46, 48, 50 Signal line 64 Low temperature forward pipe 66 Low temperature forward header 68 High temperature forward pipe 70 High temperature forward header

Claims (2)

A hot water heating system comprising: a low temperature terminal using hot water as a heat source; a bathroom heating dryer using hot water as a heat source; and a heat source supplying hot water to both the low temperature terminal and the bathroom heating dryer. ,
The required temperature of the hot water of the bathroom heater / dryer is set higher than the required temperature of the hot water of the low temperature terminal,
When the bathroom heating dryer starts heating operation during the operation of the low temperature terminal, the heat source machine supplies hot water heated to the required temperature of the bathroom heating dryer,
When the bathroom heating dryer starts a drying operation during the operation of the low temperature terminal, the hot water heating system supplies the hot water heated to the required temperature of the low temperature terminal. .   The hot water heating system according to claim 1, wherein the low temperature terminal is a panel radiator.

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