JP5744592B2 - Bathroom heating system - Google Patents

Description

  The present invention relates to a bathroom heating system including a heat source that can supply hot water and a heating heat exchanger that heats a heating fluid supplied into the bathroom with hot water supplied from the heat source.

As a bathroom heating system as described above, conventionally, a heating fluid heated by a heat exchanger for heating is used as air supplied by a blower fan or water supplied from a water supply channel. It is known that the air or water is heated to perform bathroom heating that causes warm air to flow into the bathroom or mist bath that ejects hot water mist into the bathroom (see, for example, Patent Document 1).
In the system described in Patent Document 1, a heating heat exchanger is supplied by a hot water heat exchanger for generating hot air by heating air that is ventilated by a blower fan, and a water supply channel. And a mist heat exchanger for generating hot water for hot water mist by heating water. And in order to produce | generate the warm air of desired temperature with the heat exchanger for warm air, and produce | generate the warm water of desired temperature with the heat exchanger for mist, high temperature warm water (for example, 80 degreeC) is generated from a heat source machine. It supplies hot air heat exchangers and mist heat exchangers.

  On the other hand, apart from the bathroom heating system as described above, a hot water heater is provided as a heat source machine for supplying hot water to the bathtub in the bathroom and filling the bathtub. Hot water at a target set temperature (for example, about 40 ° C.) is supplied to the bathtub to fill the bathtub.

  When a user takes a bath by heating the bathroom or performing a mist bath, on the other hand, hot water at the target set temperature for hot water filling (for example, about 40 ° C) is supplied from the water heater to the hot water bath. On the other hand, hot water of high-temperature hot water (for example, 80 ° C.) is supplied from the heat source device to the heat exchanger for heating by the bathroom heating system to perform bathroom heating or mist bath.

JP 2006-68130 A

  In the system described in Patent Document 1, warm air is blown into the bathroom by heating air with a heating heat exchanger, or water is heated with a heating heat exchanger in the bathroom. Hot water mist is ejected. However, for example, in the winter season, the heating heat exchanger is cold, so from the point of view of the user's experience and comfort, the rising performance of the hot air blowout and the hot water mist at the desired temperature in how long There was a problem that the rising performance of the mist bath deteriorated.

  Therefore, for example, the heating heat exchanger is preheated by performing a preheating operation such as supplying warm water from the heat source unit to the heating heat exchanger by a user's switch operation or the like for a predetermined time before bathing. It is possible. However, in this case, the user is required to perform a troublesome operation of performing a switch operation for a predetermined time before bathing, which may be inconvenient for the user. In addition, the user may forget to operate the switch, and eventually it has been difficult to solve the problem that the rising performance of the hot air blowing and the rising performance of the mist bath are deteriorated.

  The present invention has been made paying attention to such points, and its purpose is to improve the rising performance of hot air blowing and the rising performance of mist bath without requiring troublesome operations for the user. It is in the point which provides the bathroom heating system which can satisfy a person's experience and comfort.

In order to achieve this object, the characteristic configuration of the bathroom heating system according to the present invention is to heat a heat source machine that can supply hot water and a heating fluid that is supplied into the bathroom with hot water supplied from the heat source machine. In a bathroom heating system provided with a heat exchanger for heating,
To the hot water that has passed through the heating heat exchanger via a mixing valve provided in a flow path having an upstream end connected to the heating heat exchanger and a downstream end connected to a bathtub in the bathroom A water supply means for freely mixing water, and supplying hot water that has passed through the heating heat exchanger to the bathtub in the bathroom ;
A temperature sensor for detecting a temperature of hot water supplied to the bathtub in the bathroom on the downstream side of the mixing valve in the flow path;
Hot water filling command means for commanding hot water filling to the bathtub;
When hot water filling is commanded by the hot water filling commanding means, the operation of the heat source machine is controlled so as to supply hot water at a high temperature set temperature from the heat source machine to the heating heat exchanger, and the temperature sensor The temperature of the mixing valve is adjusted so that the detected temperature becomes the target set temperature, water is mixed with the hot water that has passed through the heating heat exchanger, and the hot water mixed with the water is supplied to the bathtub Thus, there is provided an operation control means for performing a hot water filling / preheating operation for controlling the operation of the hot water supply means .

  According to this characteristic configuration, the temperature of the hot water supplied from the heat source device to the heating heat exchanger is lowered by passing through the heating heat exchanger, so the hot water supply means includes the heating heat exchanger. Water can be mixed with the hot water that has passed, and hot water with a further reduced temperature can be supplied to the bathtub. Therefore, for example, even when high-temperature hot water is supplied from the heat source device to the heating heat exchanger, the hot water supply means mixes the water with the hot water that has passed through the heating heat exchanger, so that the desired temperature suitable for hot water filling can be obtained. The temperature of the hot water can be lowered to the temperature and the hot water can be supplied to the bathtub. And by supplying high temperature hot water to the heat exchanger for heating from the heat source machine, the heat exchanger for heating can be heated, and hot water whose temperature has been lowered to a desired temperature suitable for hot water filling is supplied to the bathtub Then you can refill the bathtub. In this way, it is possible to fill the bathtub with hot water while heating the heat exchanger for heating. For example, even when the heat exchanger for heating is cold, such as in winter, the hot water is charged to the bathtub. The user can perform both the preheating of the heat exchanger for heating and the filling of the hot water in the bathtub. When the user bathes after bathing in the bathtub, the heat exchanger for heating is warmed, and hot air or hot water mist at a desired temperature is supplied to the bathroom from the beginning of bathroom heating or mist bath operation. Can be supplied to.

  From the above, preheating the heat exchanger for heating at the appropriate timing of filling the bathtub without requiring troublesome operations for the user, the rising performance of the hot air blowing and the rising of the mist bath The performance can be improved and the user's experience and comfort can be satisfied.

In addition , according to this feature configuration, when the user commands hot water filling with the hot water filling commanding means, the operation control means performs hot water filling / preheating operation, and hot water at a high temperature set temperature is used for heating from the heat source machine. While supplying to a heat exchanger, the heat exchanger for heating can be heated appropriately, and the hot water of a target preset temperature can be supplied to a bathtub and the bathtub can be appropriately filled. Therefore, both the preheating of the heating heat exchanger and the hot water filling to the bathtub can be appropriately performed without requiring a troublesome operation for the user.

  The further characteristic configuration of the bathroom heating system according to the present invention is that the temperature of the hot water that has passed through the heating heat exchanger becomes equal to or higher than a preheating completion set temperature during the hot water filling / preheating operation. In this case, the operation of the heat source device is controlled such that the temperature of the hot water supplied from the heat source device to the heat exchanger for heating is changed to a low temperature set temperature lower than the high temperature set temperature. .

The operation control means can preheat the heating heat exchanger by performing hot water filling / preheating operation, but when the heating heat exchanger is sufficiently warmed and preheating is completed, the heat exchange for heating is completed. The temperature of the hot water that has passed through the vessel will not drop. Therefore, even if water is mixed with the hot water that has passed through the heat exchanger for heating by the hot water supply means, there is a possibility that the temperature of the hot water does not decrease to the target set temperature.
Therefore, according to this characteristic configuration, when the temperature of the warm water that has passed through the heating heat exchanger becomes equal to or higher than the preheating completion set temperature, the operation control means supplies the warm water that is supplied from the heat source unit to the heating heat exchanger. Since the temperature is changed to the low temperature set temperature that is lower than the high temperature set temperature, the temperature of the hot water that has passed through the heating heat exchanger can be reduced. Therefore, the temperature of the hot water can be lowered to the target set temperature by mixing the water with the hot water that has passed through the heat exchanger for heating in the hot water supply means, and after the preheating of the heat exchanger for heating is completed In addition, hot water at the target set temperature can be supplied to the bathtub to properly fill the bathtub.

  A further characteristic configuration of the bathroom heating system according to the present invention is that the hot water supply means allows water to be mixed with the hot water that has passed through the heating heat exchanger, and the hot water that has passed through the heating heat exchanger is used as the bathtub. It exists in the point comprised so that supply to the hot-water supply utilization location other than is free.

  According to this characteristic configuration, the hot water supply means uses hot water obtained by mixing water with the hot water that has passed through the heat exchanger for heating as well as a bathtub, for example, a hot water supply location such as a hot water tap or a shower provided in a bathroom. Can also be supplied. Therefore, the hot water supplied from the heat source machine to the heating heat exchanger can be effectively used to supply not only hot water to the bathtub but also hot water. In addition, in order to supply hot water to hot water use places such as a hot water tap and a shower, it is not necessary to separately provide a heat source device, and the configuration can be simplified.

  A further characteristic configuration of the bathroom heating system according to the present invention is a hot water supply state in which hot water that has passed through the heating heat exchanger is supplied to the hot water supply location, and a part of the hot water that has passed through the heating heat exchanger. Is supplied to at least one of the bathtub and the hot water supply location other than the bathtub, and a part of the remaining circulating state is returned to the heat source unit, and all of the hot water that has passed through the heating heat exchanger is the heat source. It is in the point provided with the switching means which can be switched to the whole circulation state returned to the machine.

  According to this characteristic configuration, hot water can be supplied to the hot water use location by the switching means switching to the hot water supply state. Further, by switching the switching means to a partially circulating state, it is possible to supply hot water to the bathtub or hot water supply use location while circulating and supplying hot water from the heat source unit to the heating heat exchanger. Therefore, by switching the switching means to a partially circulating state, not only can both the preheating of the heating heat exchanger and the hot water filling of the bathtub be performed, but also the hot water for hot air and hot water mist can be used in the heating heat exchanger. It is possible to perform both heating of the bathroom and performing mist bathing and hot water supply to the hot water use location. By switching all the switching means to the circulating state, warm air for hot air or hot water mist can be generated in the heat exchanger for heating to perform bathroom heating or mist bath. In this way, by switching the switching means to any one of the hot water supply state, the partial circulation state, and the total circulation state, it is possible to perform hot water supply to the hot water use location, bathroom heating, and mist bath in parallel. However, it is possible to appropriately cope with the case where the hot water supply to the hot water use location, the bathroom heating and the mist bath are performed independently.

  A further characteristic configuration of the bathroom heating system according to the present invention is an additional heat source device that allows the hot water supply means to add hot water supplied to a hot water supply use place other than the bathtub and to supply hot water to the hot water use use place. It is in the point to have.

According to this feature configuration, the hot water from the additional heat source machine can be added to the hot water supplied by the hot water supply means and supplied to the hot water use location, so the amount of hot water required at the hot water usage location can be reduced. The requirement can be satisfied even when the amount is large.
A further characteristic configuration of the bathroom heating system according to the present invention is a heat source unit that can freely supply hot water, and a heating heat exchanger that heats a heating fluid supplied into the bathroom with the hot water supplied from the heat source unit. A bathroom heating system comprising:
Hot water supply means for freely mixing water into the hot water that has passed through the heating heat exchanger, and supplying hot water that has passed through the heating heat exchanger to the bathtub in the bathroom;
Hot water filling command means for commanding hot water filling to the bathtub;
When hot water filling is instructed by the hot water filling commanding means, the operation of the heat source machine is controlled so as to supply hot water at a high temperature set temperature from the heat source machine to the heating heat exchanger, and An operation control means for performing hot water filling and preheating operation for controlling the operation of the hot water supply means so as to supply hot water having a target set temperature to the bathtub by mixing water with the hot water passed through the heat exchanger,
When the temperature of the hot water that has passed through the heating heat exchanger becomes equal to or higher than the preheat completion set temperature during the hot water filling / preheating operation, the operation control means changes from the heat source device to the heating heat exchanger. The operation of the heat source machine is controlled so that the temperature of the hot water to be supplied is changed to a low temperature set temperature that is lower than the high temperature set temperature.
According to this characteristic configuration, since the temperature of the hot water supplied from the heat source device to the heating heat exchanger is lowered by passing through the heating heat exchanger, the hot water supply means passes through the heating heat exchanger. It is possible to supply water to the bathtub by mixing water with the warm water and further reducing the temperature. Therefore, for example, even when high-temperature hot water is supplied from the heat source device to the heating heat exchanger, the hot water supply means mixes the water with the hot water that has passed through the heating heat exchanger, so that the desired temperature suitable for hot water filling can be obtained. The temperature of the hot water can be lowered to the temperature and the hot water can be supplied to the bathtub. And by supplying high temperature hot water to the heat exchanger for heating from the heat source machine, the heat exchanger for heating can be heated, and hot water whose temperature has been lowered to a desired temperature suitable for hot water filling is supplied to the bathtub Then you can refill the bathtub. In this way, it is possible to fill the bathtub with hot water while heating the heat exchanger for heating. For example, even when the heat exchanger for heating is cold, such as in winter, the hot water is charged to the bathtub. The user can perform both the preheating of the heat exchanger for heating and the filling of the hot water in the bathtub. When the user bathes after bathing in the bathtub, the heat exchanger for heating is warmed, and hot air or hot water mist at a desired temperature is supplied to the bathroom from the beginning of bathroom heating or mist bath operation. Can be supplied to.
In addition, according to this feature configuration, when the user commands hot water filling with the hot water filling commanding means, the operation control means performs hot water filling / preheating operation, and hot water at a high temperature set temperature is used for heating from the heat source machine. While supplying to a heat exchanger, the heat exchanger for heating can be heated appropriately, and the hot water of a target preset temperature can be supplied to a bathtub and the bathtub can be appropriately filled. Therefore, both the preheating of the heating heat exchanger and the hot water filling to the bathtub can be appropriately performed without requiring a troublesome operation for the user.
In addition, the operation control means can preheat the heating heat exchanger by performing hot water filling / preheating operation, but when the heating heat exchanger is sufficiently warmed and preheating is completed, The temperature of the hot water that has passed through the heat exchanger will not decrease. Therefore, even if water is mixed with the hot water that has passed through the heat exchanger for heating by the hot water supply means, there is a possibility that the temperature of the hot water does not decrease to the target set temperature.
Therefore, according to this characteristic configuration, when the temperature of the warm water that has passed through the heating heat exchanger becomes equal to or higher than the preheating completion set temperature, the operation control means supplies the warm water that is supplied from the heat source unit to the heating heat exchanger. Since the temperature is changed to the low temperature set temperature that is lower than the high temperature set temperature, the temperature of the hot water that has passed through the heating heat exchanger can be reduced. Therefore, the temperature of the hot water can be lowered to the target set temperature by mixing the water with the hot water that has passed through the heat exchanger for heating in the hot water supply means, and after the preheating of the heat exchanger for heating is completed In addition, hot water at the target set temperature can be supplied to the bathtub to properly fill the bathtub.
A further characteristic configuration of the bathroom heating system according to the present invention is a heat source unit that can freely supply hot water, and a heating heat exchanger that heats a heating fluid supplied into the bathroom with the hot water supplied from the heat source unit. A bathroom heating system comprising:
Hot water supply means for freely mixing water into the hot water that has passed through the heating heat exchanger, and supplying hot water that has passed through the heating heat exchanger to the bathtub in the bathroom;
A hot water supply state in which hot water that has passed through the heating heat exchanger is supplied to a hot water supply use location other than the bathtub, and a portion of the hot water that has passed through the heating heat exchanger is at least one of the bathtub and the hot water use usage location. And a switching means capable of switching between a partially circulating state in which the remaining part is returned to the heat source unit and a fully circulating state in which all the hot water that has passed through the heating heat exchanger is returned to the heat source unit. , In that it has.
According to this characteristic configuration, the temperature of the hot water supplied from the heat source device to the heating heat exchanger is lowered by passing through the heating heat exchanger, so the hot water supply means includes the heating heat exchanger. Water can be mixed with the hot water that has passed, and hot water with a further reduced temperature can be supplied to the bathtub. Therefore, for example, even when high-temperature hot water is supplied from the heat source device to the heating heat exchanger, the hot water supply means mixes the water with the hot water that has passed through the heating heat exchanger, so that the desired temperature suitable for hot water filling can be obtained. The temperature of the hot water can be lowered to the temperature and the hot water can be supplied to the bathtub. And by supplying high temperature hot water to the heat exchanger for heating from the heat source machine, the heat exchanger for heating can be heated, and hot water whose temperature has been lowered to a desired temperature suitable for hot water filling is supplied to the bathtub Then you can refill the bathtub. In this way, it is possible to fill the bathtub with hot water while heating the heat exchanger for heating. For example, even when the heat exchanger for heating is cold, such as in winter, the hot water is charged to the bathtub. The user can perform both the preheating of the heat exchanger for heating and the filling of the hot water in the bathtub. When the user bathes after bathing in the bathtub, the heat exchanger for heating is warmed, and hot air or hot water mist at a desired temperature is supplied to the bathroom from the beginning of bathroom heating or mist bath operation. Can be supplied to.
Moreover, according to this characteristic structure, hot water can be supplied to a hot-water supply utilization location because a switching means switches to a warm water supply state. Further, by switching the switching means to a partially circulating state, it is possible to supply hot water to the bathtub or hot water supply use location while circulating and supplying hot water from the heat source unit to the heating heat exchanger. Therefore, by switching the switching means to a partially circulating state, not only can both the preheating of the heating heat exchanger and the hot water filling of the bathtub be performed, but also the hot water for hot air and hot water mist can be used in the heating heat exchanger. It is possible to perform both heating of the bathroom and performing mist bathing and hot water supply to the hot water use location. By switching all the switching means to the circulating state, warm air for hot air or hot water mist can be generated in the heat exchanger for heating to perform bathroom heating or mist bath. In this way, by switching the switching means to any one of the hot water supply state, the partial circulation state, and the total circulation state, it is possible to perform hot water supply to the hot water use location, bathroom heating, and mist bath in parallel. However, it is possible to appropriately cope with the case where the hot water supply to the hot water use location, the bathroom heating and the mist bath are performed independently.

The figure which shows the state of hot water filling and preheating operation in the schematic configuration of the bathroom heating system The figure which shows the state of bathroom heating operation in schematic structure of a bathroom heating system The figure which shows the state of hot-water supply driving | running in schematic structure of a bathroom heating system The figure which shows the state of parallel operation with bathroom heating operation and hot-water supply operation in schematic structure of a bathroom heating system Flow chart showing operation in hot water filling and preheating operation The figure which shows schematic structure of the bathroom heating system in 2nd Embodiment. The figure which shows schematic structure of the bathroom heating system in 3rd Embodiment.

An embodiment of a bathroom heating system according to the present invention will be described with reference to the drawings.
[First Embodiment]
The bathroom heating system of 1st Embodiment heats air with the hot water supplied from the heat source machine 1 which can supply hot water freely, and the heat source machine 1 as shown in FIGS. A heating heat exchanger 3 for generating hot air A to be generated, a remote controller 4 for setting a hot water filling target set temperature and various operation commands, and an operation control device 5 for controlling the operation of the bathroom heating system (operation Corresponding to control means). Each of FIGS. 1-4 shows the schematic structure of a bathroom heating system, and the site | part through which warm water and water flow is shown with the thick line.

Although not shown in the drawings, the heat source unit 1 includes a heating device such as a burner, and hot water generated by heating the hot water returned to the heat source unit 1 or water supplied to the heat source unit 1 can be freely supplied to the outside. It is configured. The heat source device 1 is configured to be capable of adjusting the temperature of the hot water to be supplied by adjusting the heating amount of the heating device.
The heat exchanger 3 for heating heats the air ventilated by the blower fan 6 to generate the hot air A, and the generated hot air A is ventilated into the bathroom 2 from the ceiling or the like.

  The hot water flow path R through which the hot water flows is a first flow path portion R1 that supplies the hot water from the heat source unit 1 to the heating heat exchanger 3 and the hot water that has passed through the heating heat exchanger 3 in the bathroom 2. 2nd flow path part R2 supplied to the bathtub 7, 3rd flow path part R3 which returns the hot water which passed the heat exchanger 3 for heating to the heat source machine 1, and hot water which passed the heat exchanger 3 for heating water supply utilization It is configured to include a fourth flow path portion R4 that is supplied to a location 8 (for example, a hot water tap in the bathroom 2).

  As for 1st flow-path part R1, the upstream edge part is connected to the heat source machine 1, and the downstream edge part is connected to the heat exchanger 3 for heating. As for 2nd flow-path site | part R2, the upstream edge part is connected to the heat exchanger 3 for heating, and the downstream edge part is connected to the bathtub 7. FIG. As for 3rd flow-path part R3, an upstream edge part is connected to the middle part of 2nd flow-path area | region R2, and a downstream edge part is connected to the heat-source equipment 1. FIG. As for 4th flow-path part R4, an upstream edge part is connected to a downstream part rather than a connection location with 3rd flow-path part R3 in 2nd flow-path part R2, and a downstream edge part is connected to the hot-water supply utilization location 8 Has been.

  In the second flow path part R2, in order from the upstream side, a connection point with the third flow path part R3, a first on-off valve K1 that opens and closes the second flow path part R2, and hot water that has passed through the heat exchanger 3 for heating. 1st temperature sensor T1 which detects the temperature of 4th flow path site | part R4, the 1st mixing valve M1 which mixes the water from 1st water supply path Q1 with the hot water of 2nd flow path site | part R2, and bathtub 7 A second temperature sensor T2 for detecting the temperature of the hot water supplied to is provided. A second on-off valve K2 for opening and closing the third flow path part R3 is provided in the middle of the third flow path part R3. In the fourth flow path part R4, in order from the upstream side, the temperature of the hot water supplied to the second mixing valve M2 for mixing the water from the second water supply path Q2 with the hot water in the fourth flow path part R4, and the hot water supply use point 8 Is provided with a third temperature sensor T3.

  In the bathroom heating system of the present embodiment, hot water from the heat source unit 1 is supplied to the heating heat exchanger 3 to generate hot air A, and the hot air A is passed through the bathroom 2 for bathroom heating. For example, in the winter season or the like, the heat exchanger 3 for heating may be cold, and the rising performance of the hot air blowing may deteriorate. Therefore, in the bathroom heating system of this embodiment, in order to preheat the heating heat exchanger 3 using the timing of filling the bathtub 7 with water, water is added to the hot water that has passed through the heating heat exchanger 3. The hot water supply means 9 which supplies the hot water which passed the heat exchanger 3 for heating to the bathtub 7 of the bathroom 2 is provided.

The hot water supply means 9 includes a second flow path portion R2 of the hot water flow path R, a first water supply path Q1, and a first mixing valve M1, and passes the hot water that has passed through the heating heat exchanger 3 to the second flow path portion. The water from the first water supply channel Q1 is mixed with the hot water flowing through the second flow path portion R2 by the first mixing valve M1, and the hot water after the mixing is supplied to the bathtub 7. I have to.
The hot water supply means 9 includes a fourth flow path part R4, a second water supply path Q2, and a second mixing valve M2 in addition to the second flow path part R2, the first water supply path Q1, and the first mixing valve M1. The hot water that has passed through the heating heat exchanger 3 can be mixed with water, and the hot water that has passed through the heating heat exchanger 3 can also be supplied to the hot-water supply location 8. The hot water supply means 9 causes the hot water that has passed through the heating heat exchanger 3 to flow from the second flow path part R2 into the fourth flow path part R4, and the second water supply to the hot water flowing through the fourth flow path part R4 The water from the path Q2 is mixed by the second mixing valve M2, and the hot water after the mixing is supplied to the hot water supply utilization point 8.

  About the supply destination of the hot water which passed the heat exchanger 3 for heating, it can supply now not only to the bathtub 7 but the hot water supply utilization location 8, and also returns to the heat source machine 1 by 3rd flow-path part R3. You can also do that. Therefore, the bathroom heating system is provided with switching means 10 for switching the supply destination of the hot water that has passed through the heat exchanger 3 for heating, and the switching means 10 includes the first on-off valve K1 and the second on-off valve K2. It consists of and. The switching means 10 is configured to be switchable between a hot water supply state indicated by a thick line in FIG. 3, a partial circulation state indicated by a thick line in FIGS. 1 and 4, and a full circulation state indicated by a thick line in FIG. ing. In the hot water supply state, as shown by the thick line in FIG. 3, the switching means 10 opens the first on-off valve K1 and closes the second on-off valve K2, and the hot water that has passed through the heat exchanger 3 for heating is supplied. The hot water supply location 8 is supplied. The partial circulation state includes a first partial circulation state and a second partial circulation state. In the first partial circulation state, as shown by the thick line in FIG. 1, the switching means 10 opens the first on-off valve K1 and opens the second on-off valve K2, and the heating heat exchanger 3 is opened. A part of the warm water that has passed is supplied to the bathtub 7, and the remaining part is returned to the heat source unit 1. In the second partial circulation state, as shown by the thick line in FIG. 4, the switching means 10 opens the first on-off valve K1 and opens the second on-off valve K2, thereby heating the heat exchanger 3 for heating. A part of the hot water that has passed through the hot water supply is supplied to the hot water supply utilization point 8 and the remaining part is returned to the heat source unit 1. In the fully circulated state, as shown by the thick line in FIG. 2, the switching means 10 closes the first on-off valve K1 and opens the second on-off valve K2, so that the hot water that has passed through the heating heat exchanger 3 is opened. The whole is returned to the heat source unit 1.

The operation control device 5 performs a hot water filling / preheating operation for preheating the heating heat exchanger 3 while filling the bathtub 7 and heating the inside of the bathroom 2 by passing the hot air A through the bathroom 2. The heating operation and the hot water supply operation for supplying hot water to the hot water supply location 8 are configured to be executable.
Although not shown, the remote controller 4 is provided with an operation switch, and the operation control device 5 can perform various operations by turning on the operation switch. In addition to the operation switch, the remote control 4 includes switches for instructing various operations such as a hot water filling switch and a bathroom heating switch, and a target set temperature for hot water filling to the bathtub 7 and a hot water supply use point 8. There is provided a setting unit capable of freely setting each target set temperature for hot water to be supplied. Thereby, the remote control 4 is comprised as a hot water filling instruction | indication means.

Hereinafter, each operation will be described.
(Water filling / preheating operation)
The hot water filling / preheating operation will be described based on the flowcharts of FIGS. 1 and 5.
The operation control device 5 performs the hot water filling / preheating operation when the hot water filling switch of the remote controller 4 is turned on to command hot water filling (step # 1). In the hot water filling / preheating operation, the operation control device 5 controls the operation of the heat source unit 1 so as to supply hot water having a high temperature setting temperature (for example, 80 ° C.) from the heat source unit 1 to the heating heat exchanger 3 (step #). 2). Then, the operation control device 5 opens the first on-off valve K1 and opens the second on-off valve K2, and supplies a part of hot water that has passed through the heating heat exchanger 3 to the bathtub 7. The switching means 10 is switched to the first partial circulation state in which the remaining part is returned to the heat source unit 1.

  When the detected temperature t1 of the first temperature sensor T1 is equal to or higher than the preheating completion set temperature ta, the operation control device 5 sets the temperature of hot water supplied from the heat source unit 1 to the heating heat exchanger 3 to a high temperature set temperature (for example, 80 ° C.). The operation of the heat source unit 1 is controlled so as to be changed from a low temperature setting temperature (for example, 60 ° C.) (steps # 3 and 4). Here, with regard to the preheating completion set temperature ta, when the amount of water supplied from the first water supply channel Q1 by the first mixing valve M1 is maximized, the temperature of the hot water supplied to the bathtub 7 is lowered to the target setting temperature for hot water filling The upper limit temperature that can be set is set to the preheating completion set temperature ta. In this way, the operation control device 5 causes the heat source device 1 to heat the heating heat when the temperature of the hot water that has passed through the heating heat exchanger 3 becomes equal to or higher than the preheating completion set temperature during the hot water filling / preheating operation. The temperature of the hot water supplied to the exchanger 3 is changed to a lower temperature setting temperature on the lower side.

  If the detected temperature t2 of the second temperature sensor T2 is equal to or higher than the hot water filling target set temperature tm set by the remote controller 4, the operation control device 5 supplies water from the first water supply channel Q1 by the first mixing valve M1. The opening degree of the first mixing valve M1 is adjusted so as to increase (in the case of Yes in step # 5, step # 6). Conversely, if the detected temperature t2 of the second temperature sensor T2 is lower than the hot water filling target set temperature tm, the operation control device 5 decreases the amount of water supplied from the first water supply channel Q1 by the first mixing valve M1. The opening degree of the first mixing valve M1 is adjusted so as to cause the difference (in the case of No in step # 5, step # 7). In this way, the operation control device 5 adjusts the opening degree of the first mixing valve M1 so that the detected temperature t2 of the second temperature sensor T2 becomes the hot water filling target set temperature tm, and the hot water filling target setting. The operation of the hot water supply means 9 is controlled so as to supply hot water of temperature to the bathtub 7. When the water level of the bathtub 7 reaches the set water level by a water level sensor or the like (not shown), the operation control device 5 ends the hot water filling / preheating operation (in the case of Yes at step # 8).

  When the operation control device 5 performs this hot water filling / preheating operation, the heating heat exchanger 3 is supplied with hot water at a high temperature set temperature (for example, 80 ° C.) from the heat source unit 1. The vessel 3 can be warmed. The temperature of the hot water supplied from the heat source device 1 is lowered by passing through the heating heat exchanger 3 and preheating the heating heat exchanger 3. Thereby, even if hot water having a high temperature setting temperature is supplied to the heat exchanger 3 for heating, the water from the first water supply channel Q1 is mixed by the first mixing valve M1 with the hot water that has passed through the heat exchanger 3 for heating. Thus, the temperature of the hot water can be lowered to the target temperature for hot water filling. Therefore, hot water having a target temperature for hot water filling can be supplied to the bathtub 7, and the heating heat exchanger 3 can be preheated using the timing of hot water filling to the bathtub 7. Thereby, for example, even in winter, when the user takes a bath, the heat exchanger 3 for heating is warmed, and the hot air A having a desired temperature can be passed from the beginning of the bathroom heating operation. The rise performance of the hot air blowing can be improved.

(Bathroom heating operation)
This bathroom heating operation will be described with reference to FIG.
The operation control device 5 performs the bathroom heating operation when the bathroom heating switch of the remote controller 4 is turned ON and the bathroom heating is commanded. In the bathroom heating operation, the operation control device 5 controls the operation of the heat source device 1 so as to supply hot water having a high temperature setting temperature (for example, 80 ° C.) from the heat source device 1 to the heating heat exchanger 3. Then, the operation control device 5 closes the first on-off valve K1 and opens the second on-off valve K2, so that all the hot water that has passed through the heating heat exchanger 3 is returned to the heat source unit 1 in a fully circulating state. The switching means 10 is switched. Accordingly, the first flow path part R1, a part of the second flow path part R2, and the third flow path part R3 are circulated and supplied from the heat source unit 1 to the heat exchanger 3 for heating. Hot water can be supplied to the heat exchanger 3 for heating. In addition, the operation control device 5 operates the blower fan 6, heats the air ventilated by the blower fan 6 with the heat exchanger 3 for heating, generates hot air A, and the generated temperature The wind A is passed through the bathroom 2. For example, the operation control device 5 ends the bathroom heating operation when a set time elapses from the start of the operation of the bathroom heating operation.

(Hot water operation)
This hot water supply operation will be described with reference to FIG.
The operation control device 5 performs a hot water supply operation when the hot water tap at the hot water supply use location 8 is opened while the operation switch of the remote controller 4 is ON. In the hot water supply operation, the operation control device 5 controls the operation of the heat source device 1 so as to supply hot water having a low temperature setting temperature (for example, 60 ° C.) from the heat source device 1 to the heating heat exchanger 3. And the operation control apparatus 5 opens the 1st on-off valve K1, closes the 2nd on-off valve K2, and the hot water supply state which supplies the hot water which passed the heat exchanger 3 for heating to the hot water supply utilization location 8 The switching means 10 is switched.

  If the temperature detected by the third temperature sensor T3 is equal to or higher than the target temperature for hot water supply set by the remote controller 4, the operation control device 5 increases the amount of water supplied from the second water supply channel Q2 by the second mixing valve M2. On the contrary, if the temperature detected by the third temperature sensor T3 is lower than the target temperature for hot water supply, the second mixing valve M2 is opened so as to reduce the amount of water supplied from the second water supply channel Q2 by the second mixing valve M2. The degree is adjusted. In this way, the operation control device 5 adjusts the opening of the second mixing valve M2 so that the temperature detected by the third temperature sensor T3 becomes the target temperature for hot water supply, and supplies hot water at the target temperature for hot water supply. The hot water supply location 8 is supplied.

(Bathroom heating operation + hot water supply operation)
Since the operation control device 5 can perform not only the bathroom heating operation and the hot water supply operation alone but also the bathroom heating operation and the hot water supply operation in parallel, the bathroom heating operation and the hot water supply operation are performed based on FIG. The case where it is performed in parallel will be described.
As for the case where the bathroom heating operation and the hot water supply operation are performed in parallel, the first case where the hot water supply operation is added when the bathroom heating operation is performed first and the bathroom when the hot water operation is performed first. There is a second case in which heating operation is also performed.

First, the first case will be described.
When the hot water tap at the hot water supply use point 8 is opened during the bathroom heating operation, the operation control device 5 changes the first on-off valve K1 from the state of FIG. 2 showing the bathroom heating operation, as shown in FIG. The switching means 10 is switched to the second partial circulation state in which the valve is opened and a part of the hot water that has passed through the heating heat exchanger 3 is supplied to the hot water supply utilization point 8 and the remaining part is returned to the heat source unit 1. ing. In this case, since the bathroom heating operation is performed first, the temperature of the hot water supplied from the heat source unit 1 to the heating heat exchanger 3 is a high temperature setting temperature (for example, 80 ° C.). If the detected temperature t1 of the first temperature sensor T1 is equal to or higher than the concurrent upper limit set temperature, the operation control device 5 sets the temperature of the hot water supplied from the heat source unit 1 to the heating heat exchanger 3 to a high temperature set temperature (for example, 80 ° C.). The operation of the heat source unit 1 is controlled so as to be changed to a low temperature setting temperature (for example, 60 ° C.). Here, with respect to the upper limit set temperature for concurrent use, when the amount of water supplied from the second water supply channel Q2 by the second mixing valve M2 is maximized, the temperature of the hot water supplied to the hot water supply use location 8 is reduced to the target set temperature for hot water supply. The upper limit temperature that can be lowered is set to the upper limit set temperature for concurrent use.

Next, the second case will be described.
When the bathroom heating switch of the remote controller 4 is turned ON during the hot water supply operation and the bathroom heating is instructed, the operation control device 5 opens the second on-off valve K2 from the state of FIG. The switching means 10 is switched to the second partial circulation state in which a part of the hot water that has passed through the heating heat exchanger 3 is supplied to the hot water supply utilization point 8 and the remaining part is returned to the heat source unit 1. In this case, since the hot water supply operation is performed first, the temperature of the hot water supplied from the heat source device 1 to the heat exchanger 3 for heating is a low temperature setting temperature (for example, 60 ° C.). Therefore, the operation control device 5 changes the temperature of the hot water supplied from the heat source device 1 to the heating heat exchanger 3 from a low temperature set temperature (for example, 60 ° C.) to a high temperature set temperature (for example, 80 ° C.). Is controlling the operation. Even in this case, if the detected temperature t1 of the first temperature sensor T1 is equal to or higher than the concurrent upper limit set temperature, the operation control device 5 sets the temperature of the hot water supplied from the heat source unit 1 to the heating heat exchanger 3 to the high temperature set temperature. The operation of the heat source unit 1 is controlled so as to change from a low temperature setting temperature (for example, 60 ° C.) to a low temperature setting temperature (for example, 60 ° C.).

[Second Embodiment]
In the first embodiment, one heating heat exchanger 3 is provided, and in the heating heat exchanger 3, warm air A is supplied to the bathroom 2 by heating air with hot water supplied from the heat source unit 1. Is generated.
On the other hand, in this 2nd Embodiment, as shown in FIG. 6, as the heat exchanger 3 for heating, the warm air A which heats air with the hot water supplied from the heat source machine 1 and supplies it in the bathroom 2 The first heating heat exchanger 3a for generating water, and the second heating heat exchanger 3b for generating hot water for hot water mist that is heated in the hot water supplied from the heat source unit 1 and sprayed into the bathroom 2 And two heating heat exchangers. Thereby, not only does the warm air A flow in the bathroom 2 to heat the bathroom, but also the hot water mist is jetted into the bathroom 2 from the mist nozzle 11 installed on the ceiling side of the bathroom 2 to perform the mist bath. You can also.

  The first heating heat exchanger 3a and the second heating heat exchanger 3b are provided in a parallel state, and a third on-off valve K3 is provided in a flow path portion on the first heating heat exchanger 3a side. In addition, a fourth opening / closing valve K4 is provided in the flow path portion on the second heating heat exchanger 3b side. The operation control device 5 controls the opening / closing operation of the third on-off valve K3 and the fourth on-off valve K4, so that the hot water from the heat source unit 1 is supplied to the first heating heat exchanger 3a and the second heating heat exchanger 3b. And can be supplied separately. The operation control device 5 opens the third on-off valve K3 when performing the bathroom heating operation, and opens the fourth on-off valve K4 when performing the mist operation of ejecting hot water mist into the bathroom 2. I have to.

  The operation control device 5 opens both the third on-off valve K3 and the fourth on-off valve K4 when performing the hot water filling / preheating operation, so that the hot water from the heat source unit 1 is heated to the first heating heat. Supplying to the exchanger 3a and the second heating heat exchanger 3b and preheating both the first heating heat exchanger 3a and the second heating heat exchanger 3b while filling the bathtub 7 with hot water it can. Therefore, for example, even in the winter season, when the user takes a bath, both the first heating heat exchanger 3a and the second heating heat exchanger 3b are warmed and desired from the beginning of the bathroom heating operation. It is possible to improve the rising performance of the hot air blowing by passing the hot air A at the temperature, and to improve the rising performance of the mist bath by blowing out the hot water mist at the desired temperature from the beginning of the mist operation. it can.

[Third Embodiment]
In the said 1st and 2nd embodiment, when supplying hot water to the hot water supply utilization location 8, hot water is supplied by one heat source unit 1, but for example, as shown in FIG. In addition to the hot water supplied to the hot water supply use location 8, an additional heat source device 12 that can supply hot water to the hot water use usage location 8 can be provided. The additional heat source unit 12 is configured to be able to supply hot water through the additional hot water flow path P, and between the connection portion of the fourth flow path portion R4 and the second flow passage portion R2 and the second mixing valve M2. The downstream end of the additional hot water flow path P is connected to the site. Thereby, the hot water supplied from the additional heat source device 12 is merged with the warm water in the fourth flow path portion R4 by the additional warm water flow path P, and the hot water after the merge is set by the second mixing valve M2 as a target for hot water supply. The temperature is adjusted and supplied to the hot water supply utilization point 8. In this way, by providing the additional heat source device 12, the hot water supply means 9 can add the hot water supplied to the hot water supply utilization point 8 and supply hot water to the hot water supply utilization point 8. It is possible to secure a sufficient amount of hot water supply.

[Another embodiment]
(1) In the first to third embodiments, the first on-off valve K1 and the second on-off valve K2 are provided, and the switching means 10 switches the on-off state of the first on-off valve K1 and the second on-off valve K2. Thus, the hot water supply state, the partial circulation state, and the full circulation state are switched. Instead of the first on-off valve K1 and the second on-off valve K2, a three-way valve is provided at the connection point between the second flow path part R2 and the third flow path part R3, and the switching means 10 changes the state of the three-way valve. By switching, it is possible to switch to a hot water supply state, a partial circulation state, and a full circulation state.

  The present invention comprises a heat source device that can supply hot water and a heating heat exchanger that heats a heating fluid supplied into the bathroom with the hot water supplied from the heat source device, and is troublesome for the user. Therefore, it is possible to improve the rising performance of the hot air blowing and the rising performance of the mist bath, and can be applied to various bathroom heating systems that can satisfy the user's experience and comfort.

1 Heat source machine 2 Bathroom 3 Heat exchanger for heating 4 Remote control (water filling command means)
5 Operation control device (operation control means)
7 Bath 8 Hot water supply location 9 Hot water supply means 10 Switching means 12 Additional heat source machine

Claims (7)

A bathroom heating system comprising: a heat source that can freely supply hot water; and a heating heat exchanger that heats a heating fluid supplied into the bathroom with hot water supplied from the heat source.
To the hot water that has passed through the heating heat exchanger via a mixing valve provided in a flow path having an upstream end connected to the heating heat exchanger and a downstream end connected to a bathtub in the bathroom A water supply means for freely mixing water, and supplying hot water that has passed through the heating heat exchanger to the bathtub in the bathroom ;
A temperature sensor for detecting a temperature of hot water supplied to the bathtub in the bathroom on the downstream side of the mixing valve in the flow path;
Hot water filling command means for commanding hot water filling to the bathtub;
When hot water filling is commanded by the hot water filling commanding means, the operation of the heat source machine is controlled so as to supply hot water at a high temperature set temperature from the heat source machine to the heating heat exchanger, and the temperature sensor The temperature of the mixing valve is adjusted so that the detected temperature becomes the target set temperature, water is mixed with the hot water that has passed through the heating heat exchanger, and the hot water mixed with the water is supplied to the bathtub A bathroom heating system comprising operation control means for performing hot water filling / preheating operation for controlling the operation of the hot water supply means . When the temperature of the hot water that has passed through the heating heat exchanger becomes equal to or higher than the preheat completion set temperature during the hot water filling / preheating operation, the operation control means changes from the heat source device to the heating heat exchanger. bathroom heating system according to claim 1 that controls the operation of the heat source apparatus so as to change to a low temperature setting temperature reduction side than the temperature of the hot water supplying the hot setting temperature. The hot water supply means, the hot water in the water passing through the heating heat exchanger as freely mixed, claim the hot water passing through the heating heat exchanger is configured to be freely fed to the hot water usage position 1 or 2 Described in the bathroom heating system. A hot water supply state in which hot water that has passed through the heating heat exchanger is supplied to a hot water supply use location other than the bathtub, and a portion of the hot water that has passed through the heating heat exchanger is at least one of the bathtub and the hot water use usage location. And a switching means capable of switching between a partially circulating state in which the remaining part is returned to the heat source unit and a fully circulating state in which all the hot water that has passed through the heating heat exchanger is returned to the heat source unit. The bathroom heating system of any one of Claims 1-3 provided. Said at hot water supply means is added to the hot water supplied to the hot water usage locations other than the bath, the hot water to any one of claim 1 to 4, which comprises a freely additional heat source equipment supplied to the hot water usage points The bathroom heating system described. A bathroom heating system comprising: a heat source that can freely supply hot water; and a heating heat exchanger that heats a heating fluid supplied into the bathroom with hot water supplied from the heat source.
Hot water supply means for freely mixing water into the hot water that has passed through the heating heat exchanger, and supplying hot water that has passed through the heating heat exchanger to the bathtub in the bathroom;
Hot water filling command means for commanding hot water filling to the bathtub;
When hot water filling is instructed by the hot water filling commanding means, the operation of the heat source machine is controlled so as to supply hot water at a high temperature set temperature from the heat source machine to the heating heat exchanger, and An operation control means for performing hot water filling and preheating operation for controlling the operation of the hot water supply means so as to supply hot water having a target set temperature to the bathtub by mixing water with the hot water passed through the heat exchanger,
When the temperature of the hot water that has passed through the heating heat exchanger becomes equal to or higher than the preheat completion set temperature during the hot water filling / preheating operation, the operation control means changes from the heat source device to the heating heat exchanger. The bathroom heating system which controls the action | operation of the said heat-source machine so that the temperature of the hot water to supply may be changed into the low temperature preset temperature of the lower side rather than the said high temperature preset temperature. A bathroom heating system comprising: a heat source that can freely supply hot water; and a heating heat exchanger that heats a heating fluid supplied into the bathroom with hot water supplied from the heat source.
Hot water supply means for freely mixing water into the hot water that has passed through the heating heat exchanger, and supplying hot water that has passed through the heating heat exchanger to the bathtub in the bathroom;
A hot water supply state in which hot water that has passed through the heating heat exchanger is supplied to a hot water supply use location other than the bathtub, and a portion of the hot water that has passed through the heating heat exchanger is at least one of the bathtub and the hot water use usage location. And a switching means capable of switching between a partially circulating state in which the remaining part is returned to the heat source unit and a fully circulating state in which all the hot water that has passed through the heating heat exchanger is returned to the heat source unit. , Which has a bathroom heating system.

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