JP2019196858A - Hot water system, hot water supply program - Google Patents

Abstract

To provide a hot water system and a hot water supply program capable of suppressing the supply of hot water at an unintended temperature.SOLUTION: A hot water system 10 includes a water heater 20, and a communication control device 50. The water heater 20 has a first hot water supply passage 311 and a second hot water supply passage 312 parallel to each other. The water heater 20 executes first hot water supply processing for supplying hot water through the first hot water supply passage 311 corresponding to a hot water supply signal. The water heater 20 executes second hot water supply processing for supplying hot water through the second hot water supply passage 312 once the interruption of the second hot water supply passage 312 use is detected. The communication control device 50 transmits the hot water supply signal to the water heater 20 corresponding to the radio signal. In the case where the first hot water supply processing is started corresponding to the hot water supply signal from the communication control device 50, the water heater 20 does not execute the second hot water supply processing even when the interruption is detected or executes hot water temperature reduction processing for reducing the temperature of the hot water supplied through the second hot water supply passage 312 when the interruption is detected.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a hot water supply system and a hot water supply program. In particular, the present disclosure relates to a hot water supply system that can supply hot water through a plurality of parallel hot water supply passages, and a hot water supply program applicable to the hot water supply system.

  Patent Document 1 discloses a method for controlling a hot water bath-equipped bathtub. In the control method of Patent Document 1, when a hot water supply interruption during general hot water supply or a general hot water supply interruption during hot water supply occurs, if the determination index value (the degree of diversion) is equal to or greater than a set threshold, simultaneous hot water supply is permitted. To do. On the other hand, in the control method of Patent Document 1, if the determination index value is less than the set threshold value, the hot water supply hot water is put on standby until the general hot water supply ends with the general hot water supply priority.

JP 2002-340399 A

  However, in Patent Document 1, when a user uses a general hot water tap, if hot water supply has already been executed by a user other than this user, the hot water has already been prepared. In some cases, hot water is supplied from a general hot water tap.

  The problem is to provide a hot water supply system and a hot water supply program capable of suppressing the supply of hot water having an unintended temperature.

  A hot water supply system according to an aspect of the present disclosure includes a hot water supply device and a communication control device. The hot water supply device has a first hot water supply passage and a second hot water supply passage which are parallel to each other. The said hot water supply apparatus performs the 1st hot water supply process which supplies hot water through the said 1st hot water supply path according to the hot water supply signal. The hot water supply device executes a second hot water supply process for supplying hot water through the second hot water supply passage when detecting an interruption of use of the second hot water supply passage. The communication control device transmits the hot water supply signal to the hot water supply device in response to a radio signal. When the hot water supply device starts the first hot water supply process in response to the hot water supply signal from the communication control device, the hot water supply device does not execute the second hot water supply process even if the interrupt is detected, or the interrupt is performed. When detected, the hot water temperature lowering process is executed. The hot water temperature lowering process is a process of lowering the temperature of hot water supplied through the second hot water supply passage.

  When the hot water supply program according to an aspect of the present disclosure is executed by one or more processors, the first instruction and the second instruction are given to the one or more processors. The first instruction is an instruction to execute a first hot water supply process for supplying hot water through a first hot water supply path in response to a hot water supply signal transmitted from the communication control device in response to a radio signal. The second instruction does not execute the second hot water supply process even if an interruption of use of the second hot water supply path parallel to the first hot water supply path is detected when the first hot water supply process is started by the first instruction. Or an instruction to execute a hot water temperature lowering process when the interruption is detected. The second hot water supply process is a process of supplying hot water through the second hot water supply path. The hot water temperature lowering process is a process of lowering the temperature of hot water supplied through the second hot water supply passage.

  According to the aspect of the present disclosure, there is an effect that supply of hot water having an unintended temperature can be suppressed.

FIG. 1 is a schematic explanatory diagram of a hot water supply system according to an embodiment. FIG. 2 is a schematic explanatory diagram of a remote hot water supply system including the hot water supply system. FIG. 3 is a flowchart of the operation of the hot water supply system. FIG. 4 is a flowchart of the safe mode of the hot water supply system. FIG. 5 is a flowchart of the normal mode of the hot water supply system. FIG. 6 is a flowchart of a safe mode of a modification of the hot water supply system.

1. Embodiment 1.1 Overview As shown in FIG. 1, the hot water supply system 10 includes a hot water supply device 20 and a communication control device 50. The hot water supply apparatus 20 includes a first hot water supply path 311 and a second hot water supply path 312 that are parallel to each other. The hot water supply device 20 executes a first hot water supply process for supplying hot water through the first hot water supply path 311 in response to a hot water supply signal. Communication control device 50 transmits a hot water supply signal to hot water supply device 20 in response to the radio signal. When the hot water supply device 20 starts the first hot water supply process in response to the hot water supply signal from the communication control device 50, hot water is supplied through the second hot water supply passage 312 even if an interruption of use of the second hot water supply passage 312 is detected. The second hot water supply process is not executed.

  That is, in the hot water supply system 10, even if the user tries to use the second hot water supply path 312 without knowing that the hot water supply device 20 is executing the first hot water supply process by the hot water supply signal from the communication control device 50, the second hot water supply Hot water is not supplied from the passage 312. In particular, when hot water is supplied from the hot water supply apparatus 20 to both the first hot water supply path 311 and the second hot water supply path 312, hot water having the same temperature as the hot water supplied from the first hot water supply path 311 is supplied through the second hot water supply path 312. There is a risk of being. However, in the hot water supply system 10, since the hot water supply device 20 does not execute the second hot water supply process, the possibility that hot water having a temperature different from the temperature assumed by the user is supplied through the second hot water supply path 312 is reduced. Thus, according to the hot water supply system 10, supply of the hot water of the temperature which is not intended can be suppressed.

1.2 Configuration Hereinafter, the hot water supply system 10 will be described in more detail with reference to FIGS. In this embodiment, the hot water supply system 10 supplies hot water to the bathtub 210 and the hot water tap 220 which are hot water consumption apparatuses, as shown in FIG. In FIG. 2, the hot water tap 220 is provided in the kitchen. That is, in this embodiment, the hot water supply system 10 is installed in a house and supplies hot water to the bathtub 210 and the hot water tap 220 in the house.

  As shown in FIG. 2, the hot water supply system 10 is connected to a server 300 via a communication network 500 so as to be communicable. The server 300 is connected to the information terminal 400 via the communication network 500 so as to be communicable. The hot water supply system 10, the server 300, and the information terminal 400 constitute a remote hot water supply system. This remote hot water supply system enables control of the hot water supply system 10 using the information terminal 400.

  As shown in FIG. 1, the hot water supply system 10 includes a hot water supply device 20, a communication control device 50, and a remote control device 60.

  The hot water supply device 20 includes a hot water supply facility 30 and an operation control device 40.

  The hot water supply facility 30 includes a pipe 31, a heat exchanger 32, and a fuel pipe 33. The hot water supply facility 30 performs the hot water supply function by giving the heat obtained by the combustion flame of the fuel supplied from the fuel pipe 33 to the water passing through the pipe 31 by the heat exchanger 32 that is a hot water supply heat source. . In the present embodiment, the fuel is a combustion gas such as natural gas. Therefore, the hot water supply device 20 including the hot water supply facility 30 is a so-called gas water heater.

  The pipe 31 includes a first hot water supply path 311, a second hot water supply path 312, a third hot water supply path 313, a first water supply path 314, a second water supply path 315, and a third water supply path 316.

  The first hot water supply path 311, the second hot water supply path 312, and the third hot water supply path 313 are configured by a pipe portion on the downstream side of the heat exchanger 32 in the pipe 31. The first hot water passage 311 and the second hot water passage 312 are connected in parallel to the first end of the third hot water passage 313, and the second end of the third hot water passage 313 is connected to the outlet of the heat exchanger 32. Has been.

  In the present embodiment, as shown in FIG. 2, the first hot water supply path 311 is connected to the bathtub 210, and the second hot water supply path 312 is connected to the hot water tap 220.

  The first water supply path 314, the second water supply path 315, and the third water supply path 316 are configured by a pipe portion on the upstream side of the heat exchanger 32 in the pipe 31. The first water supply path 314 has a first end connected to a water source (such as a water pipe) outside the hot water supply device 20 and a second end connected to a water supply port of the heat exchanger 32. That is, the first water supply channel 314 receives water from the outside of the hot water supply device 20 and supplies it to the heat exchanger 32. The second water supply path 315 is configured by a bypass pipe connected from the first water supply path 314 to the first hot water supply path 311 so as to bypass the heat exchanger 32. Moreover, the 3rd water supply path 316 is comprised by the bypass piping connected to the 2nd hot water supply path 312 from the 1st water supply path 314 so that the heat exchanger 32 may be bypassed.

  Further, the hot water supply facility 30 includes a first valve 341, a second valve 342, a third valve 343, a fourth valve 344, and a fifth valve 345. Each of the first valve 341, the second valve 342, the third valve 343, the fourth valve 344, and the fifth valve 345 is a valve member that controls the flow of fluid. The valve member is, for example, a ball valve. Examples of the valve member include a diaphragm valve and a butterfly valve.

  The first valve 341 is provided in the first hot water supply path 311. In particular, the first valve 341 includes, in the first hot water supply path 311, between a connection point between the first hot water supply path 311 and the second water supply path 315 and a connection point between the first hot water supply path 311 and the third hot water supply path 313. It is in. The first valve 341 is used to adjust the amount of hot water supplied from the heat exchanger 32 to the first hot water supply path 311.

  The second valve 342 is provided in the second hot water supply path 312. In particular, the second valve 342 is provided between the connection point between the second hot water supply channel 312 and the third water supply channel 316 and the connection point between the second hot water supply channel 312 and the third hot water supply channel 313 in the second hot water supply channel 312. It is in. The second valve 342 is used to adjust the amount of hot water supplied from the heat exchanger 32 to the second hot water supply passage 312.

  The third valve 343 is provided in the first water supply channel 314. In particular, the third valve 343 is located in the first water supply channel 314 between the connection point between the first water supply channel 314 and the second water supply channel 315 and the water supply port of the heat exchanger 32. The third valve 343 is used for adjusting the amount of water supplied to the heat exchanger 32.

  The fourth valve 344 is provided in the second water supply path 315. The fourth valve 344 is used for adjusting the amount of water supplied to the first hot water supply path 311.

  The fifth valve 345 is provided in the fuel pipe 33. The fifth valve 345 is used to adjust the amount of fuel supplied to the heat exchanger 32.

  In addition, the hot water supply facility 30 includes a flow meter 35. The flow meter 35 is provided in the third water supply channel 316. The flow meter 35 measures the amount of water flowing through the third water supply channel 316 as a flow rate.

  The operation control device 40 is an electric circuit that controls the hot water supply facility 30. The operation control device 40 can be realized by, for example, one or more processors (microprocessors) and one or more memories. That is, one or more processors function as the operation control device 40 by executing one or more programs stored in one or more memories. The one or more programs may be recorded in advance in a memory, or may be provided by being recorded through a telecommunication line such as the Internet or in a non-temporary recording medium such as a memory card.

  When the operation control device 40 receives the ON signal, the operation control device 40 enters an ON state in which the hot water supply facility 30 can be controlled. That is, the hot water supply device 20 is in an operating state. In the operating state, the hot water supply device 20 can execute the first hot water supply process and the second hot water supply process. For example, a switch in the operation control device 40 is turned on by an ON signal, and power supply from the power source to the operation control device 40 is started. As a result, the operation control device 40 is turned on, and the hot water supply device 20 is in the operation state. On the other hand, when the operation control device 40 receives the off signal, the operation control device 40 enters an off state in which the hot water supply facility 30 cannot be controlled. That is, the hot water supply device 20 is stopped. In the stop state, the hot water supply device 20 cannot execute the first hot water supply process and the second hot water supply process. For example, the switch in the operation control device 40 is turned off by the off signal, and the power supply from the power source to the operation control device 40 is stopped. Thereby, the operation control device 40 is turned off, and the hot water supply device 20 is stopped. In the present embodiment, the on signal and the off signal are transmitted from the communication control device 50 and the remote control device 60 to the operation control device 40.

  In the ON state, the operation control device 40 controls the first valve 341, the second valve 342, the third valve 343, the fourth valve 344, the fifth valve 345, and the heat exchanger 32 of the hot water supply facility 30.

  The operation control device 40 performs a process (hot water generation process) for boiling the hot water by controlling the hot water supply facility 30. In the hot water generation process, the operation control device 40 opens the third valve 343 and the fifth valve 345 and operates the heat exchanger 32 to heat the water in the heat exchanger 32 to generate hot water. In the hot water generation process, for example, the operation control device 40 adjusts the amount of water to the heat exchanger 32 using the third valve 343 and adjusts the amount of fuel to the heat exchanger 32 using the fifth valve 345. Thus, the temperature of hot water generated in the heat exchanger 32 is set to a preset hot water supply temperature. Hot water generated by this hot water generation process is supplied to the first hot water supply path 311 and the second hot water supply path 312. That is, the first hot water supply path 311 and the second hot water supply path 312 have the same hot water source. Therefore, it can be said that the second hot water supply process is a process of supplying hot water having the same temperature as the hot water supplied in the first hot water supply process through the second hot water supply channel 312.

  The operation control device 40 further controls the hot water supply facility 30 to execute the first hot water supply process and the second hot water supply process.

  The first hot water supply process is a process of supplying hot water through the first hot water supply path 311. In the first hot water supply process, the operation control device 40 opens the first valve 341 and supplies hot water from the heat exchanger 32 to the first hot water supply path 311. In the first hot water supply process, the operation control device 40 adjusts the temperature of hot water supplied from the heat exchanger 32 to the first hot water supply path 311 by opening the fourth valve 344 as necessary. The operation control device 40 ends the first hot water supply process when the end condition is satisfied. The end condition is that a certain amount of hot water is supplied through the first hot water supply passage 311. In the present embodiment, the first hot water supply path 311 is connected to the bathtub 210, and the first hot water supply process is a so-called hot water filling process.

  The second hot water supply process is a process of supplying hot water through the second hot water supply path 312. In the second hot water supply process, the operation control device 40 opens the second valve 342 and supplies hot water from the heat exchanger 32 to the second hot water supply path 312. The second hot water supply process is executed in response to detection of an interruption of use of the second hot water supply passage 312. In the present embodiment, since the second hot water supply passage 312 is connected to the hot water supply tap 220, when the hot water supply tap 220 is opened, water comes out from the hot water supply tap 220 through the third water supply passage 316 and the second hot water supply passage 312. Therefore, when the flow rate measured by the flow meter 35 is equal to or greater than the threshold value, the operation control device 40 determines that there has been an interruption of use of the second hot water supply passage 312.

  As described above, the hot water supply apparatus 20 includes the heat exchanger 32, supplies hot water generated by the heat exchanger 32 to the first hot water supply path 311 in the first hot water supply process, and heat exchanger 32 in the second hot water supply process. The hot water generated in step 1 is supplied to the second hot water supply passage 312.

  When receiving the hot water supply signal, the operation control device 40 starts the first hot water supply process. The hot water supply signal is given from the communication control device 50 or the remote control device 60 to the operation control device 40. Here, when the operation control device 40 receives a hot water supply signal from the remote control device 60, the operation control device 40 operates in the normal mode. In the normal mode, the operation control device 40 performs the second hot water supply process in response to the detection of the interruption of the use of the second hot water supply path 312. On the other hand, when the operation control device 40 receives a hot water supply signal from the communication control device 50, the operation control device 40 operates in the safe mode. In the safe mode, the operation control device 40 does not perform the second hot water supply process even when the use hot water passage 312 is detected as being interrupted. In addition, when the operation control device 40 receives the release signal in the safe mode, the operation control device 40 shifts to the normal mode. The release signal is given to the operation control device 40 by the remote control device 60. In addition, the operation control device 40 sends a notification to the remote control device 60 when operating in the safe mode. This notification includes a message indicating that the hot water supply device 20 is executing the first hot water supply process by the hot water supply signal from the communication control device 50.

  If the first hot water supply process is not being executed, the operation control device 40 performs the second hot water supply process in response to detection of an interruption of the use of the second hot water supply path 312.

  The remote control device 60 is a device for the user to operate the hot water supply device 20. The remote control device 60 is installed, for example, in a bathroom with a bathtub 210 or in the vicinity of a kitchen with a hot water tap 220. The remote control device 60 includes an input / output unit 61 and a processing unit 62. The input / output unit 61 is a user interface for operating the hot water supply device 20 and confirming the state of the hot water supply device 20. The input / output unit 61 includes an input device for operating the hot water supply device 20 and an output device for displaying information related to the state of the hot water supply device 20. The input device includes, for example, a touch pad and one or more push buttons. The output device includes a display and a speaker. Here, a touch panel may be configured by the touch pad of the input device and the display of the output device. The processing unit 62 is an electric circuit that controls the operation of the remote control device 60. The processing unit 62 can be realized by, for example, one or more processors (microprocessors) and one or more memories. The processing unit 62 is communicably connected to the operation control device 40 of the hot water supply device 20. The processing unit 62 gives an ON signal, an OFF signal, a hot water supply signal, and a release signal to the operation control device 40 according to the operation of the input / output unit 61. The processing unit 62 sets the hot water supply temperature of the hot water supply device 20 in accordance with the operation of the input / output unit 61. Remote control device 60 may have a normal state in which all functions for controlling hot water supply device 20 are effective, and a sleep state in which only a function for transmitting an ON signal to operation control device 40 is effective. In this case, the remote control device 60 may shift from the sleep state to the normal state in conjunction with the operation control device 40 changing from the off state to the on state.

  The communication control device 50 is a device for causing the hot water supply device 20 to execute the first hot water supply process in accordance with the operation of the information terminal 400. In the present embodiment, since the first hot water supply process is a so-called hot water filling process, the communication control device 50 enables the hot water filling of the bathtub 210 using the information terminal 400 instead of the remote control device 60. Here, the information terminal 400 is, for example, a smartphone. The information terminal 400 can be realized by a portable terminal such as a tablet terminal or a personal computer (particularly a laptop computer). When the user executes an appropriate application on the information terminal 400 and requests execution of the first hot water supply process, the request from the information terminal 400 is transmitted to the server 300 via the communication network 500. The server 300 holds a correspondence relationship between the user of the information terminal 400 and the communication control device 50, and transmits a request from the information terminal 400 to the communication control device 50 corresponding to the user of the information terminal 400 through the communication network 500. To do. Thereby, a request for execution of the first hot water supply process is given from the information terminal 400 to the communication control device 50.

  When communication control device 50 receives a request for execution of the first hot water supply process through communication network 500, communication control device 50 determines whether operation control device 40 is in the on state or in the off state (whether hot water supply device 20 is in the operating state or the stopped state). For example, the communication control device 50 transmits a signal for requesting a response to the operation control device 40, and determines that the operation control device 40 is in an off state if there is no response from the operation control device 40 within a predetermined period. If the hot water supply device 20 is in a stopped state, the communication control device 50 transmits an ON signal to the operation control device 40 to turn on the operation control device 40 and then transmits a hot water supply signal. On the other hand, if the operation control device 40 is on, the communication control device 50 transmits a hot water supply signal without transmitting an on signal to the operation control device 40. As a result, the communication control device 50 causes the operation control device 40 to start the first hot water supply process in response to a request for execution of the first hot water supply process from the information terminal 400.

  In the hot water supply system 10 described above, the operation control device 40 of the hot water supply device 20 is realized by one or more processors and one or more memories. That is, the operation control apparatus 40 is implement | achieved when one or more processors execute a program (hot-water supply program). When the hot water supply program is executed by one or more processors, the first instruction and the second instruction are given to the one or more processors. The first instruction is an instruction to execute a first hot water supply process for supplying hot water through the first hot water supply path 311 in response to a hot water supply signal transmitted from the communication control device 50 in response to a radio signal. The second instruction is to supply hot water through the second hot water supply path 312 even if an interruption of use of the second hot water supply path 312 parallel to the first hot water supply path 311 is detected when the first hot water supply process is started by the first instruction. This is an instruction not to execute the second hot water supply process. According to such a hot water supply program, similarly to the hot water supply system 10, supply of hot water having an unintended temperature can be suppressed.

1.3 Operation Hereinafter, an example of the operation of the hot water supply system 10 will be described with reference to the flowcharts of FIGS.

  First, if the operation control apparatus 40 is in an ON state, it waits for a hot water supply signal (S101). When receiving the hot water supply signal (S101: Yes), the operation control device 40 starts the first hot water supply process (S102). If the transmission source of the hot water supply signal is the communication control device 50 (S103: Yes), the operation control device 40 sends a notification to the remote control device 60 (S104). This notification indicates that the hot water supply device 20 is executing the first hot water supply process by the hot water supply signal from the communication control device 50. Thereafter, the operation control device 40 operates in the safe mode (S105). On the other hand, if the source of the hot water supply signal is other than the communication control device 50 (remote control device 60) (S103: No), the operation control device 40 operates in the normal mode (S106).

  FIG. 4 shows the operation in the safe mode of the hot water supply system 10. In the safe mode, the operation control apparatus 40 performs detection of interruption (S201), reception of a release signal (S202), and determination of satisfaction of an end condition (S203). Here, the operation control device 40 ignores the interrupt, and does not change any processing depending on whether or not the interrupt is detected (S201: Yes or No). When it is determined that the release signal has been received (S202: Yes), the operation control device 40 shifts from the safe mode to the normal mode (S205). If the operation control device 40 determines that the end condition is satisfied (S203: Yes), the first hot water supply process is ended (S204).

  FIG. 5 shows an operation in the normal mode of the hot water supply system 10. In the normal mode, the operation control device 40 performs detection of interruption (S301) and determination of satisfaction of end conditions (S305, S307). Further, when the operation control device 40 detects an interruption (S301: Yes), the operation control device 40 starts the second hot water supply process (S302), and thereafter ends the interruption (S303, S309) and satisfies the termination condition (S305, S307). Judgment is made. If the operation control device 40 determines that the interruption has ended (S303, S309: Yes), it ends the second hot water supply process (S304, S310). Moreover, if the operation control apparatus 40 determines with satisfy | filling completion | finish conditions (S305, S307: Yes), it will complete | finish a 1st hot-water supply process.

  As described above, the hot water supply system 10 executes the second hot water supply process in response to the interrupt in the normal mode, but does not execute the second hot water supply process in the safe mode even if there is an interrupt. Therefore, according to the hot water supply system 10, supply of hot water having an unintended temperature can be suppressed.

2. Modifications Embodiments of the present disclosure are not limited to the above-described embodiments. The above embodiment can be variously modified according to the design and the like as long as the object of the present disclosure can be achieved. Below, the modification of the said embodiment is enumerated.

  For example, the safe mode operation of the hot water supply system 10 is not limited to the example of the embodiment. In one modified example, when the hot water supply device 20 detects an interrupt while executing the first hot water supply process in response to the hot water supply signal from the communication control device 50, the hot water supply apparatus 20 executes the hot water temperature lowering process together with the second hot water supply process. Also good. The hot water temperature lowering process is a process of lowering the temperature of the hot water supplied in the second hot water supply process. The hot water supply device 20 may stop the production of hot water in the heat exchanger 32 in the hot water temperature lowering process. For example, the operation control device 40 stops the production of hot water in the heat exchanger 32 and opens the second valve 342 only during the hot water temperature lowering process. Thereby, the temperature of the hot water supplied in the second hot water supply process is lowered. Therefore, in this modification, the supply of hot water at an unintended temperature can be suppressed as in the above embodiment. However, the temperature of the hot water supplied in the first hot water supply process also decreases as the hot water generation in the heat exchanger 32 is stopped. Therefore, the operation control device 40 stops the first hot water supply process when performing the hot water temperature lowering process. When no interruption is detected, operation control device 40 ends the second hot water supply process and the hot water temperature lowering process, and restarts the first hot water supply process.

  In the case of this modification, the second instruction of the hot water supply program is that the hot water temperature is detected when an interruption of use of the second hot water supply path 312 parallel to the first hot water supply path 311 is detected when the first hot water supply process is started by the first instruction. This is an instruction to execute the lowering process. According to such a hot water supply program, supply of hot water at an unintended temperature can be suppressed as in the above embodiment.

  Hereinafter, the safe mode operation of the modified example will be described with reference to the flowchart of FIG. The operation control device 40 performs detection of interruption (S401), reception of a release signal (S407), and determination of satisfaction of an end condition (S408). When the operation control device 40 detects an interrupt (S401: Yes), the operation control device 40 starts the second hot water supply process and the hot water temperature lowering process (S402), and stops the first hot water supply process (S403). And if the operation control apparatus 40 stops detecting an interruption (S404: Yes), it will complete | finish a 2nd hot water supply process and a hot water temperature fall process (S405), and will restart a 1st hot water supply process (S406). Further, when the operation control device 40 determines that the release signal has been received (S407: YES), the operation control device 40 shifts from the safe mode to the normal mode (S410). If the operation control apparatus 40 determines that the end condition is satisfied (S408: Yes), the first hot water supply process is ended (S409).

  As described above, in the normal mode, in the normal mode, the second hot water supply process is executed in response to the interrupt, and in the safe mode, the second hot water supply process and the temperature lowering process are executed in response to the interrupt. Therefore, according to the modified example, it is possible to suppress supply of hot water having an unintended temperature. In the flowchart of FIG. 6, the order of S402 and S403 may be reversed, and the order of S405 and S406 may be reversed.

  Moreover, in the said modification, in the hot water temperature reduction process, you may reduce the temperature of the hot water produced | generated with the heat exchanger 32 instead of complete | finishing the production | generation of the hot water by the heat exchanger 32. FIG. For example, the operation control device 40 adjusts the amount of water to the heat exchanger 32 using the third valve 343 and adjusts the amount of fuel to the heat exchanger 32 using the fifth valve 345, thereby adjusting the heat exchanger. The temperature of the hot water produced | generated by 32 is made lower than the preset hot-water supply temperature. In this case, the lower the temperature of the hot water produced by the heat exchanger 32, the better.

  The configuration of the hot water supply facility 30 of the above embodiment is an example, and the configuration of the hot water supply facility 30 is not limited to the configuration of the above embodiment.

  For example, the hot water supply facility 30 may have a plurality of second hot water supply paths 312. The plurality of second hot water passages 312 may be connected not only to the hot water tap 220 of the kitchen but also to various hot water taps such as a hot water tap of a wash basin and a hot water tap of a bathroom. In short, the hot water supply facility 30 only needs to have one or more second hot water supply passages 312.

  Further, the hot water supply facility 30 is not limited to a configuration in which hot water is directly supplied from the heat exchanger 32 to the first hot water supply path 311 and the second hot water supply path 312. For example, the hot water supply facility 30 may have a tank that stores hot water generated by the heat exchanger 32, and supply hot water from the tank to the first hot water supply path 311 and the second hot water supply path 312. That is, the hot water supply facility 30 may be a hot water storage type water heater.

  Further, the heat exchanger 32 may be an electric type instead of a fuel type.

  The hot water supply facility 30 may include one or more temperature sensors provided in the pipe 31 for the purpose of temperature control and the like. The operation control device 40 can more accurately adjust the temperature of hot water supplied from the hot water supply facility 30 based on the measurement results of one or more temperature sensors.

3. Aspects As is apparent from the above embodiments and modifications, the present disclosure includes the following aspects. In the following, the reference numerals are attached with parentheses only to clarify the correspondence with the embodiment.

  The hot water supply system (10) of the first aspect includes a hot water supply device (20) and a communication control device (50). The hot water supply device (20) includes a first hot water supply passage (311) and a second hot water supply passage (312) which are parallel to each other, and supplies a first hot water through the first hot water supply passage (311) in response to a hot water supply signal. Execute hot water supply processing. When the hot water supply device (20) detects an interruption of use of the second hot water supply passage (312), the hot water supply device (20) executes a second hot water supply process for supplying hot water through the second hot water supply passage (312). The communication control device (50) transmits the hot water supply signal to the hot water supply device (20) in response to a radio signal. When the hot water supply device (20) starts the first hot water supply processing in response to the hot water supply signal from the communication control device (50), the hot water supply device (20) does not execute the second hot water supply processing even if the interrupt is detected. Alternatively, when the interruption is detected, the hot water temperature lowering process is executed. The hot water temperature lowering process is a process of lowering the temperature of hot water supplied through the second hot water supply passage (312). According to the 1st aspect, supply of the hot water of the temperature which is not intended can be suppressed.

  The hot water supply system (10) of the second aspect can be realized in combination with the first aspect. In the second aspect, the hot water supply device (20) includes a heat exchanger (32). The hot water supply device (20) supplies the hot water generated by the heat exchanger (32) to the first hot water supply passage (311) in the first hot water supply process, and the heat exchanger (20) in the second hot water supply process. The hot water generated in 32) is supplied to the second hot water supply passage (312). According to the 2nd aspect, supply of the hot water of the temperature which is not intended can be suppressed.

  The hot water supply system (10) of the third aspect can be realized by a combination with the first or second aspect. In the third aspect, the hot water supply device (20) ignores the interrupt while executing the first hot water supply processing in response to the hot water supply signal from the communication control device (50). According to the 3rd aspect, supply of the hot water of the temperature which is not intended can be suppressed.

  The hot water supply system (10) of the fourth aspect can be realized by a combination with the second aspect. In the fourth aspect, the hot water supply device (20) stops the production of hot water in the heat exchanger (32) in the hot water temperature lowering process. According to the 4th aspect, supply of the hot water of the temperature which is not intended can be suppressed.

  The hot water supply system (10) of the fifth aspect can be realized by a combination with the second aspect. In the fifth aspect, the hot water supply device (20) lowers the temperature of the hot water generated by the heat exchanger (32) in the hot water temperature lowering process. According to the 5th aspect, supply of the hot water of the temperature which is not intended can be suppressed.

  The hot water supply system (10) of the sixth aspect can be realized by a combination with the fourth or fifth aspect. In the sixth aspect, when the hot water supply device (20) detects the interrupt while executing the first hot water supply processing in response to the hot water supply signal from the communication control device (50), the first hot water supply device (20) detects the interrupt. Stop hot water supply. According to the sixth aspect, it is possible to prevent hot water or water having a temperature lower than usual in the first hot water supply process from being supplied.

  The hot water supply system (10) of the seventh aspect can be realized by a combination with the sixth aspect. In a seventh aspect, when the hot water supply device (20) does not detect the interrupt after the end of the first hot water supply process in response to the detection of the interrupt, the hot water supply device (20) ends the hot water temperature lowering process and the first hot water supply process (20). Restart the hot water supply process. According to the 7th aspect, the convenience of the hot water supply system (10) improves.

  The hot water supply system (10) of the eighth aspect can be realized by a combination with any one of the first to seventh aspects. In the eighth aspect, the hot water supply system (10) includes a remote control device (60) that transmits the hot water supply signal to the hot water supply device (20) in response to a user operation. According to the eighth aspect, the convenience of the hot water supply system (10) is improved.

  The hot water supply system (10) of the ninth aspect can be realized by a combination with the eighth aspect. In a ninth aspect, the hot water supply device (20) performs the second hot water supply in response to detection of the interrupt while the first hot water supply processing is being executed by the hot water supply signal from the remote control device (60). Execute hot water supply processing. According to the ninth aspect, the convenience of the hot water supply system (10) is improved.

  The hot water supply system (10) of the tenth aspect can be realized by a combination with the eighth or ninth aspect. In the tenth aspect, the remote control device (60) notifies that the hot water supply device (20) is executing the first hot water supply process by the hot water supply signal from the communication control device (50). According to the tenth aspect, the user can be notified of the reason for not performing the second hot water supply process.

  The hot water supply system (10) of the eleventh aspect can be realized by a combination with the ninth or tenth aspect. In the eleventh aspect, the remote control device (60) transmits a release signal to the hot water supply device (20) in response to a user operation. The hot water supply device (20) receives the release signal while executing the first hot water supply processing by the hot water supply signal from the communication control device (50), and then receives the release signal in response to the detection of the interrupt. A 2nd hot-water supply process is performed. According to the 11th aspect, a 2nd hot-water supply process can be started based on a user's intention display.

  The hot water supply system (10) of the twelfth aspect can be realized by a combination with any one of the first to eleventh aspects. In a twelfth aspect, the wireless signal is a signal indicating a request for execution of the first hot water supply process from the information terminal (400). According to the twelfth aspect, the hot water supply device (20) can start the first hot water supply process using the information terminal (400).

  The hot water supply system (10) of the thirteenth aspect can be realized by a combination with any one of the first to twelfth aspects. In a thirteenth aspect, the hot water supply device (20) controls the hot water supply facility (30) having a first hot water supply passage (311) and a second hot water supply passage (312), and the hot water supply facility (30). And an operation control device (40) for executing the first hot water supply process and the second hot water supply process. The operation control device (40) has an on state in which the hot water supply facility (30) can be controlled and an off state in which the hot water supply facility (30) cannot be controlled. The communication control device (50) transmits the hot water supply signal to the operation control device (40) after changing the operation control device (40) from the off state to the on state. According to the thirteenth aspect, even when the operation control device (40) is turned off and the hot water supply device (20) is stopped, the operation control device (40) is turned on and the hot water supply device (20) is turned on. It can start and a 1st hot-water supply process can be started.

  When the hot water supply program according to the fourteenth aspect is executed by one or more processors, the first instruction and the second instruction are given to the one or more processors. The first instruction is an instruction to execute a first hot water supply process of supplying hot water through the first hot water supply path (311) in response to a hot water supply signal transmitted from the communication control device (50) in response to a radio signal. The second instruction is not detected even when an interruption in use of the second hot water supply path (312) parallel to the first hot water supply path (311) is detected when the first hot water supply process is started by the first instruction. This is an instruction not to execute the hot water supply process or to execute the hot water temperature lowering process when the interruption is detected. The second hot water supply process is a process of supplying hot water through the second hot water supply path (312). The hot water temperature lowering process is a process of lowering the temperature of hot water supplied through the second hot water supply passage (312). According to the 14th aspect, supply of the hot water of the temperature which is not intended can be suppressed.

DESCRIPTION OF SYMBOLS 10 Hot-water supply system 20 Hot-water supply apparatus 30 Hot-water supply equipment 311 1st hot-water supply path 312 2nd hot-water supply path 32 Heat exchanger 40 Operation control apparatus 50 Communication control apparatus 60 Remote control apparatus

Claims (14)

A first hot water supply path and a second hot water supply path that are parallel to each other are executed, a first hot water supply process for supplying hot water through the first hot water supply path is executed in response to a hot water supply signal, and an interruption in use of the second hot water supply path is detected. Then, a hot water supply device that executes a second hot water supply process for supplying hot water through the second hot water supply path,
A communication control device that transmits the hot water supply signal to the hot water supply device in response to a radio signal,
When the hot water supply device starts the first hot water supply process in response to the hot water supply signal from the communication control device, the hot water supply device does not execute the second hot water supply process even if the interrupt is detected, or the interrupt is performed. When detected, a hot water supply system that executes a hot water temperature lowering process for lowering the temperature of hot water supplied through the second hot water supply passage.   The hot water supply device has a heat exchanger, supplies hot water generated by the heat exchanger to the first hot water supply path in the first hot water supply process, and is generated by the heat exchanger in the second hot water supply process. The hot water supply system according to claim 1, wherein hot water is supplied to the second hot water supply passage.   3. The hot water supply system according to claim 1, wherein the hot water supply device ignores the interrupt while executing the first hot water supply processing in response to the hot water supply signal from the communication control device.   The hot water supply system according to claim 2, wherein the hot water supply device stops generating hot water in the heat exchanger in the hot water temperature lowering process.   The hot water supply system according to claim 2, wherein the hot water supply device lowers the temperature of hot water generated by the heat exchanger in the hot water temperature lowering process.   The hot water supply device stops the first hot water supply processing when detecting the interrupt while executing the first hot water supply processing in response to the hot water supply signal from the communication control device. Item 4. or 5 hot water supply system.   The hot water supply device ends the hot water temperature lowering process and restarts the first hot water supply process when the interrupt is not detected after the completion of the first hot water supply process according to the detection of the interrupt. The hot water supply system according to claim 6.   The hot water supply system according to any one of claims 1 to 7, further comprising a remote control device that transmits the hot water supply signal to the hot water supply device in accordance with a user operation.   The hot water supply device executes the second hot water supply processing in response to the detection of the interrupt while the first hot water supply processing is being executed by the hot water supply signal from the remote control device. Item 8. A hot water supply system according to item 8.   The hot water supply system according to claim 8 or 9, wherein the remote control device notifies that the hot water supply device is executing the first hot water supply processing by the hot water supply signal from the communication control device. The remote control device transmits a release signal to the hot water supply device according to a user operation,
The hot water supply device executes the second hot water supply processing in response to detection of the interrupt after receiving the release signal while executing the first hot water supply processing by the hot water supply signal from the communication control device. The hot water supply system according to claim 9 or 10, characterized in that:   The hot water supply system according to any one of claims 1 to 11, wherein the wireless signal is a signal indicating a request for execution of the first hot water supply process from an information terminal. The hot water supply device includes a hot water supply facility having the first hot water supply passage and the second hot water supply passage, and an operation control device that controls the hot water supply facility to execute the first hot water supply processing and the second hot water supply processing. ,
The operation control device has an on state in which the hot water supply facility can be controlled and an off state in which the hot water supply facility cannot be controlled,
The hot water supply according to any one of claims 1 to 12, wherein the communication control device transmits the hot water supply signal to the operation control device after changing the operation control device from the off state to the on state. system. When executed by one or more processors, a first instruction and a second instruction are given to the one or more processors;
The first instruction is an instruction to execute a first hot water supply process of supplying hot water through a first hot water supply path in response to a hot water supply signal transmitted from a communication control device in response to a radio signal;
In the second instruction, when the first hot water supply process is started by the first instruction, hot water is passed through the second hot water supply path even if an interruption of use of the second hot water supply path parallel to the first hot water supply path is detected. The hot water supply program is an instruction to execute the hot water temperature lowering process for lowering the temperature of hot water supplied through the second hot water supply passage when the interruption is detected. .

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