JP5094490B2 - Bathroom heater with mist sauna function - Google Patents

Description

  The present invention relates to a bathroom heater with a mist sauna function that obtains a sauna effect by spraying mist on a bathroom.

  As a bathroom heater with a mist sauna function, a hot air heat exchanger for generating hot air for heating, a mist heat exchanger for generating hot water for mist, and hot water for hot air heat exchange A device comprising a hot air control valve that controls the supply, a mist control valve that controls the supply of hot water to the heat exchanger for mist, and a mist sprayer that sprays mist is known (for example, , See Patent Document 1). In such a bathroom heater, a circulating heat source device is used as a hot water generator for generating hot water, and hot water from this heat source device is supplied to a hot air heat exchanger through a hot air control valve, The hot water heat exchanged with the air in the wind heat exchanger is returned to the heat source machine, and the hot water from the heat source machine is supplied to the mist heat exchanger through the mist control valve, and in the mist heat exchanger. The hot water heat-exchanged with water is returned to the heat source machine.

  Further, as a hot water supply device having a mist sauna function, a hot water supply device as a hot water generator, a mist sprayer for spraying mist, and a mist control valve for controlling the supply of hot water to the mist sprayer It is known (see, for example, Patent Document 2). In such a hot water supply apparatus, hot water from the water heater is fed to the mist sprayer through the mist control valve.

JP 2005-241223 A JP 2006-275338 A

  However, in the bathroom heating device described above, only a circulation heat source machine can be applied as a hot water generator, and such a bathroom heater with a mist sauna function cannot be applied to a conventional existing water heater. When applied to a conventional existing water heater, the configuration is similar to the water heater with the mist sauna function described above. However, in this hot water supply device with a mist sauna function, the mist can be sprayed from the mist sprayer to maintain a high humidity state at the desired temperature in the bathroom, but since there is no heating function, the temperature of the mist filled in the bathroom There is a problem that it is easy to cool.

  An object of the present invention is to provide a bathroom heater with a mist sauna function that can selectively apply a circulating heat source machine and a water heater as a hot water generator, and thus can also be applied to an existing water heater. It is.

A bathroom heater with a mist sauna function according to claim 1 of the present invention is a heating heat exchanger for generating hot air, a heat exchanger for mist for generating hot water, and the heat exchange for heating. And a hot water supply flow path for supplying warm water for heating to the heat exchanger for mist and a hot water return flow path for returning hot water from the heat exchanger for heating and the heat exchanger for mist A heating inflow channel connecting the inflow portion of the heating heat exchanger and the hot water supply flow channel, and a heating outflow flow connecting the outflow portion of the heating heat exchanger and the hot water return channel A heating inflow passage connecting the first passage and the first inflow portion of the heat exchanger for mist and the hot water supply passage, and a first outflow portion of the heat exchanger for mist and the hot water return passage. A heating outflow passage to be connected; a mist inflow passage connected to the second inflow portion of the heat exchanger for mist; A mist outflow passage connected to the second outflow portion of the heat exchanger for mist, a mist sprayer connected to a downstream end of the mist outflow passage, the mist outflow passage, and the heating inflow passage An inflow connection flow path connecting the mist outflow flow path and the heating outflow flow path, and a connection portion between the inflow connection flow path and the mist outflow flow path. Connection between the first flow path switching valve, the second flow path switching valve disposed at the connection portion between the inflow connection flow path and the heating inflow flow path, and the heating outflow flow path and the outflow connection flow path A third flow path switching valve disposed in the section,
A circulating heat source machine that generates and circulates hot water as a hot water generator and a water heater that generates and feeds hot water are selectively used. When the circulating heat source machine is used, When the hot water supply section is connected to the hot water supply flow path, the hot water return section is connected to the hot water return flow path, and the hot water heater is used, the hot water supply section of the hot water heater is the mist inflow flow path. It is connected to.

  Moreover, in the bathroom heater with a mist sauna function according to claim 2 of the present invention, in the mist sauna operation in the case where the circulation heat source device is used, the first flow path switching valve has the mist outflow flow path. The flowing warm water is sent downstream to the mist sprayer, and the second flow path switching valve feeds warming warm water flowing through the warm water feed path to the inflow portion of the heating heat exchanger, The third flow path switching valve feeds the hot water from the heating heat exchanger to the hot water return flow path, and in the mist sauna operation when the hot water heater is used, the first flow path switching valve. Supplies hot water flowing through the mist outflow passage to the inflow connection passage, and the second flow path switching valve supplies hot water flowing through the inflow connection passage to the inflow portion of the heating heat exchanger. The third flow path switching valve is hot water from the heating heat exchanger. Wherein the feeding to the outlet connection channel.

  Moreover, in the bathroom heater with a mist sauna function according to claim 3 of the present invention, a fourth flow path switching valve is disposed at a connection portion between the mist outflow path and the outflow connection path, and the circulation type In the mist sauna operation in the case of using a heat source machine, the fourth flow path switching valve feeds the hot water flowing through the mist outflow path downstream to the mist sprayer, and the mist sauna in the case of using the water heater. In operation, the fourth flow path switching valve supplies hot water flowing through the outflow connection flow path to the mist sprayer.

  In the bathroom heater with a mist sauna function according to claim 4 of the present invention, a cool air operation is possible in addition to the mist sauna operation, and in the mist sauna operation, warm air is supplied to the heating heat exchanger. Is generated, and mist is generated in the mist sprayer, and in the cool air operation, cool air is generated in the heating heat exchanger.

  Furthermore, in the bathroom heater with a mist sauna function according to claim 5 of the present invention, a drainage channel is connected to the mist outflow channel in connection with the fact that the mist sauna operation and the cool air operation are possible. In addition, a drain valve is disposed in the drain channel, and a mist valve is disposed in a portion of the mist outflow channel between the connection with the drain channel and the mist sprayer. In the mist sauna operation using the circulation type heat source device, the first flow path switching valve feeds the hot water flowing through the mist outflow path downstream to the mist sprayer, and the second flow path switching valve. Supplies warming hot water flowing through the hot water supply flow path to the inflow portion of the heating heat exchanger, and the third flow path switching valve returns hot water from the heating heat exchanger to the hot water return. The mist valve is kept open. In the cool air operation when the circulating heat source unit is used, the first flow path switching valve feeds water flowing through the mist outflow path to the inflow connection flow path, and the second flow path switching. The valve supplies water flowing through the inflow connection flow path to the inflow portion of the heating heat exchanger, and the third flow path switching valve supplies water from the heating heat exchanger to the outflow connection flow path. The mist valve is held in a closed state, and the drain valve is held in an open state.

  According to the bathroom heater with a mist sauna function according to claim 1 of the present invention, a heating heat exchanger for generating hot air, a mist heat exchanger for generating hot water, and heating heat A warm water supply passage for feeding warm water for heating to the exchanger and the heat exchanger for mist, a warm water return passage for returning warm water from the heat exchanger for heating and the heat exchanger for mist, A mist inflow channel connected to the inflow portion of the mist heat exchanger, a mist outflow channel connected to the outflow portion of the mist heat exchanger, and a mist connected to the downstream end of the mist outflow channel As the hot water generator, a circulating heat source device that generates and circulates hot water and a hot water heater that generates and feeds hot water are selectively used. And when a circulation type heat source machine is used, since the hot water supply part of the circulation type heat source machine is connected to the hot water supply flow path, the hot water from the circulation type heat source machine is supplied to the heat exchanger for heating and the heat source machine for mist. Heated air can be heated by heat exchange in the heat exchanger for heating and the bathroom can be warmed, and water can be heated by heat exchange in the heat exchanger for mist and sprayed from the mist sprayer to have a mist sauna effect Obtainable. Also, when using a water heater, the hot water supply part of the water heater is fed to the mist inflow channel, so that the hot water from the water heater is fed to the mist sprayer and sprayed to obtain a mist sauna effect. it can. The term “bathroom heater” in the present specification includes a normal bathroom heater having a bathroom heating function for heating a bathroom, and a bathroom heating dryer having a bathroom drying function for drying the bathroom in addition to the bathroom heating function. Used in concepts including

  Moreover, according to the bathroom heater with a mist sauna function according to claim 2 of the present invention, the first to third flow path switching valves are the first in the mist sauna operation in the case of using the circulation heat source machine. Since the control state is maintained, the first flow path switching valve feeds hot water flowing through the mist outflow path to the mist sprayer, and the second flow path switching valve heats warming hot water flowing through the hot water feed path. The third flow path switching valve feeds warm water from the heating heat exchanger to the warm water return flow path, thereby heating the air by the heating heat exchanger. Thus, the bathroom can be warmed, and water can be warmed by the mist heat exchanger and sprayed from the mist sprayer. Further, in the mist sauna operation when the hot water heater is used, since the first to third flow path switching valves are held in the second control state, the first flow path switching valve is hot water flowing through the mist outflow path. Is supplied to the inflow connection flow path, the second flow path switching valve supplies hot water flowing through the inflow connection flow path to the inflow portion of the heating heat exchanger, and the third flow path switching valve is the heating heat exchanger. The hot water from the water can be supplied to the outflow connection flow path, so that the hot water from the water heater can be used to heat the air by the heating heat exchanger and warm the bathroom, and the heating heat exchanger The hot water flowing through can be guided to the mist sprayer and sprayed in the bathroom.

  According to the bathroom heater with a mist sauna function according to claim 3 of the present invention, in the mist sauna operation in the case of using the circulation type heat source device, the fourth channel switching valve is the hot water flowing through the mist outflow channel. Is supplied to the mist sprayer, the hot water warmed in the heat exchanger for mist is sprayed by the mist sprayer. In addition, in the mist sauna operation when the hot water heater is used, the fourth flow path switching valve feeds the hot water flowing through the outflow connection flow path to the mist sprayer, so that the hot water flowing through the heating heat exchanger is Sprayed with a sprayer.

  According to the bathroom heater with a mist sauna function according to claim 4 of the present invention, in the mist sauna operation, warm air is generated in the heat exchanger for heating, mist is generated in the mist sprayer, and cool air In operation, cool air is generated in the heat exchanger for heating. For example, by performing cool air operation after the mist sauna, the warmed body can be cooled and a refreshing feeling can be obtained.

  Furthermore, according to the bathroom heater with a mist sauna function according to claim 5 of the present invention, a drainage channel is disposed in the mist outflow channel, and a drainage valve is disposed in the outflow channel, A mist valve is disposed in a portion of the mist outflow passage between the connection portion with the drainage passage and the mist sprayer. In the mist sauna operation using the circulating heat source machine, the first to third flow path switching valves are held in the first control state, and the mist valve is held in the open state. In the cool air operation when the circulating water source is used, the first to third flow path switching valves are set to the second control state, and the mist valve is closed. Since the drain valve is kept open, the water from the mist inflow channel is sent to the heating heat exchanger to generate cool air, and then this water is drained through the drain channel, Can send cool breeze into the bathroom.

  Hereinafter, referring to the attached drawings, FIG. 1 is a simplified view showing an embodiment of a bathroom heater with a mist sauna function according to the present invention, and FIG. 2 is a circulation heat source machine in the bathroom heater of FIG. 3 is a diagram showing a connected state, FIG. 3 is a diagram showing a state in which a water heater is connected to the bathroom heater in FIG. 1, and FIG. 4 is a block diagram showing a control system of the bathroom heater in FIG. FIG. 5 is a flowchart showing a control system of the bathroom heater of FIG.

  In FIG. 1, the illustrated bathroom heater with a mist sauna function includes a heater body 2 installed in association with the bathroom, a heating heat exchanger 4 for generating hot air, and hot water. A heat exchanger 6 for mist, the heat exchanger 4 for heating and the heat exchanger 6 for mist are built in the main body 2 of the heater, and the air in the bathroom is related to the heat exchanger 4 for heating. A circulation fan (not shown) that flows into the bathroom through the heat exchanger 4 for heating is provided.

  The heater body 2 is provided with a hot water supply passage 8 and a hot water return passage 10. The warm water feed channel 8 is for feeding warm water, and the warm water feed channel 8 and the inflow portion 12 of the heating heat exchanger 4 are connected via the heating inflow channel 14 to return the warm water. The flow path 10 and the outflow part 16 of the heating heat exchanger 4 are connected via a heating outflow path 18. Further, the hot water supply passage 8 and the first inflow portion 20 of the mist heat exchanger 6 are connected via the heating and supply passage 22, and the hot water return passage 10 and the first of the mist heat exchanger 6 are connected. The outflow part 24 is connected via the heating outflow channel 26. Further, a mist inflow passage 30 is connected to the second inflow portion 28 of the heat exchanger for mist, a mist outflow passage 34 is connected to the second outflow portion 32, and the downstream of the mist outflow passage 34. A mist sprayer 36 is connected to the end.

  In this bathroom heater, the mist outflow passage 34 and the heating inflow passage 14 are connected via an inflow connection passage 38, and the mist outflow passage 34 (specifically, the connection with the heating inflow passage 14). And a heating outflow passage 18 are connected via an outflow connection passage 40. Further, a drainage flow path 42 is connected to the mist outflow path 34 (specifically, a portion on the downstream side of the connection portion with the outflow connection path 40).

  In this bathroom heater, a first flow switching valve 44 is provided at the connection between the inflow connection flow path 38 and the mist outflow flow path 34, and the first connection at the connection between the inflow connection flow path 38 and the heating inflow flow path 14. A second flow path switching valve 46 is provided, a third flow path switching valve 48 is provided at the connection between the heating outflow flow path 18 and the outflow connection flow path 40, and the outflow connection flow path 40 and the mist outflow flow path 34 A fourth flow path switching valve 50 is provided at the connecting portion. Further, a water supply valve 52 is disposed in the mist inflow passage 30, a mist control valve 54 is disposed in the heating / outflow passage 26, and more specifically from a connection portion of the mist outflow passage 42. A mist valve 56 is disposed on the downstream side), and a drain valve 58 is disposed in the drain passage 42. The mist control valve 54 may be provided in the heating inflow passage 22 instead of being provided in the heating outflow passage 26.

  The first to fourth flow path switching valves 44, 46, 48, 50 can be constituted by, for example, three-way valves. In the first control state, the first to fourth flow path switching valves 44, 46, 48 are used. , 50 are switched to the state shown in FIG. That is. The first flow path switching valve 44 supplies hot water flowing through the mist outflow path 34 from the second outflow portion 32 of the mist heat exchanger 6 to the mist sprayer 36 on the downstream side, and the second flow path switching valve 46 is Hot water (heating water) flowing through the heating inflow passage 14 is supplied to the inflow portion 12 of the heating heat exchanger 4, and the third flow path switching valve 48 is supplied with hot water (from the outflow portion 16 of the heating heat exchanger 4 ( The warm water for heating) is fed to the warm water return channel 10, and the fourth channel switching valve 50 feeds the warm water flowing through the mist outflow channel 34 to the mist sprayer 36 further downstream. Further, in the second control state, as shown in FIG. 3, the first flow path switching valve 44 feeds hot water flowing from the mist heat exchanger 6 through the mist outflow path 34 to the inflow connection flow path 38. The second flow path switching valve 46 supplies hot water (hot water for mist) from the inflow connection flow path 38 to the inflow portion 12 of the heating heat exchanger 4, and the third flow path switching valve 48 is heated for heating. Hot water (hot water for mist) from the outflow part 16 of the exchange 4 is supplied to the outflow connection flow path 40, and the fourth flow path switching valve 50 supplies hot water flowing through the outflow connection flow path 40 to the mist sprayer 36. . In addition, about the 4th flow-path switching valve 50, even if it omits, warm water can be supplied so that it may mention later.

  In this embodiment, the first temperature sensor 60 is further provided in the hot water supply passage 8, the second temperature sensor 62 is provided in the mist outflow passage 34, and the third temperature sensor is provided in the heater body 2. 64, the first temperature sensor 60 detects the temperature of the hot water flowing through the hot water supply passage 8, the second temperature sensor 62 detects the temperature of the hot water flowing through the mist outflow passage 34, and the third temperature. The sensor 64 detects the temperature in the bathroom.

  In this bathroom heater / dryer, the circulating heat source device 72 and the hot water heater 73 are selectively applied as hot water generating means for generating and supplying hot water. When the circulation heat source unit 72 is applied, the connection is made as shown in FIG. The circulation heat source unit 72 is known per se, and includes a combustion burner 74, a heat exchanger 76, an expansion tank 78, and a feed pump 80, and uses the combustion gas of the combustion burner 74 as a heat exchanger 76. The heated hot water is supplied to the hot water supply unit 84 through the hot water supply channel 82. The warm water that has returned to the warm water return section 86 is fed to the heat exchanger 76 through the warm water return channel 88, the expansion tank 78, and the warm water return feed channel 90, and the warm water supply channel 82, the warm water return channel 88, and the like. Are connected through the bypass channel 92, and a part of the hot water flowing through the hot water supply channel 82 is fed to the hot water return channel 88 through the bypass channel 92. The hot water supply flow path 82 is provided with a forward hot water detection sensor 94 for detecting the temperature of the supplied hot water, and the warm water return flow path 88 is provided with a return hot water detection sensor 96 for detecting the temperature of the return hot water. Has been.

  When this circulating heat source unit 72 is used, the hot water supply unit 84 of the heat source unit 72 is connected to the hot water supply channel 8 of the heater body 2 via the supply connection channel 98, and the hot water return unit 86 returns. Connected to the hot water return flow path 10 of the heater body 2 via the connection flow path 100, and the supply connection flow path 98 is provided with an on-off valve 102 for supplying and stopping hot water supply. Therefore, when the on-off valve 102 is opened, the hot water generated by the heat source unit 72 is supplied to the hot water supply channel 8 of the heater body 2 through the supply connection channel 98 and the hot water of the heater unit 2 is also supplied. The warm water from the return flow path 10 is returned to the heat source unit 72 through the return connection flow path 100, and the warm water generated in the heat source unit 72 is the heater main body 2 (the heat exchanger 4 for heating and the heat exchanger 6 for mist). Circulated through.

  Moreover, when applying the water heater 73, it connects as shown in FIG. The water heater 73 is known per se and includes a combustion burner 104 and a heat exchanger 106, and water such as tap water is supplied to the heat exchanger 106 through the water supply passage 108, and the combustion gas of the combustion burner 104 The hot water heated by the heat exchanger 106 is supplied through the hot water supply channel 110. A mixer 112 is disposed in the hot water supply channel 110, and the mixer 112 and the water supply channel 108 are connected via a bypass channel 114, and the hot water and the water supply channel flowing through the hot water supply channel 110 are connected. The water flowing through the bypass flow path 114 from 108 is mixed in the mixer 112 to adjust the temperature of the hot water, and the hot water is supplied to the hot water supply units 114a and 114b. The hot water supply units 114a and 114b are provided with on-off valves 116a and 116b for supplying and stopping the supply of hot water.

  When using this water heater 73, the hot water supply part 114a of the water heater 73 is connected to the mist inflow channel 30 of the heater body 2 via the supply connection channel 118. Therefore, when the on-off valve 116a is opened, the hot water generated in the hot water heater 73 is supplied to the mist inflow channel 30 of the heater body 2 through the supply connection channel 118. In addition, the other hot water supply part 114b of the water heater 73 is connected to the currant 122 through the supply connection channel 120, for example.

  This bathroom heater is controlled by the control system shown in FIG. Referring to FIG. 4, the bathroom heater includes a controller 124 for performing control, and this controller 124 includes operation control means 126, temperature comparison means 128, hot water generator determination means 130, valve switching signal generation means 132, Timer means 134 and storage means 136 are provided. The operation control means 126 includes a hot water generator (circulation heat source unit 72, hot water heater 73), a mist control valve 54, a water supply valve 52, first to fourth flow path switching valves 44, 46, 48, 50 and the like as will be described later. The temperature comparison means 120 compares the set temperature (for example, set to about 40 ° C.) with the temperature detected by the first temperature sensor 60, and the hot water generator determination means 130 is connected as described later. The generated hot water generator determines the circulation heat source unit 72 or the hot water heater 73, and the valve switching signal generation means 132 generates the first control signal or the second control signal based on the determination result of the hot water generator determination means 130. . The timer means 134 counts the time, and counts a set time (for example, set to about 1 minute) from the start of operation to determination. The set temperature and the set temperature are stored in the storage means 136.

  The controller 124 is supplied with detection signals from the first to third temperature sensors 60, 62 and 64. The controller 124 is controlled by a remote controller 138. The remote controller 138 operates the operation button 140 for operating and stopping the bathroom heater, the mist temperature setting means 142 for setting the spray temperature of the mist sauna, and the bathroom temperature for setting the bathroom temperature. Setting means 144 is provided.

  This bathroom heater is operated as follows during the mist sauna operation. First, with reference to FIG. 2, FIG. 4 and FIG. 5, the mist sauna operation when the circulating heat source unit 72 is connected will be described. When the mist sauna operation is set by operating the remote controller 138, the hot water generator (in this case, the circulation heat source unit 72) is activated (the combustion burner 74 is combusted, the feed pump 80 is activated, the open / close valve) 102 is opened) (step S1), the mist control valve 54 is opened (step S2), and the hot water generated in the heat source unit 72 is supplied to the heater body 2 through the supply connection channel 98, thus The supplied hot water passes through the hot water supply passage 8, the heating / feeding passage 22, the heating / outflow passage 26 and the warm water return passage 10, and further returns to the heat source device 72 through the return connection passage 100, thus heating the heater. Circulated through the body 2.

  Then, when a predetermined period (for example, 1 minute) elapses from the start of operation (that is, the timer means 134 times up), the process proceeds from step S3 to step S4, and the detected temperature of the first temperature sensor 60 becomes the predetermined set temperature ( For example, it is determined whether it is 40 ° C. or higher. When the circulation type heat source device 72 is connected, the hot water from the circulation type heat source device 72 is circulated through the heater main body 2, so that the temperature of the hot water flowing through the warm water supply flow path 8 rises and is detected by the first temperature sensor 60. The temperature also rises, and when the set time has elapsed from the start of operation, the temperature of the hot water flowing through the hot water supply channel 8 exceeds the set temperature. In this embodiment, when the predetermined time elapses, the temperature comparison unit 128 compares the set temperature (for example, 40 ° C.) registered in the storage unit 136 with the detected temperature of the first temperature sensor 60, and the first temperature sensor If the detected temperature of 60 is equal to or higher than the set temperature, the hot water generator determining unit 130 determines that the connected hot water generator is the circulating heat source unit 72 (step S5). The valve switching signal generating means 132 generates a first control signal based on the determination result that the circulation heat source unit 72 is connected, and the operation control means 126 is based on the first control signal. The fourth flow path switching valves 44, 46, 48, 50 are held in the first control state (step S6).

  In the first control state, as shown in FIG. 2, the first flow path switching valve 44 communicates with the mist outflow flow path 34, the second flow path switching valve 46 communicates with the heating inflow flow path 14, and The three-channel switching valve 48 communicates with the heating / outflow channel 18, and the fourth channel switching valve 50 communicates with the mist outflow channel 34.

  Thereafter, the water supply valve 52 and the mist valve 56 are opened (step S7), the mist sauna is operated, the mist is sprayed into the bathroom from the mist sprayer 36 (step S8), and the mist sauna is operated until the operation is completed. Is done.

  In this mist sauna operation state, a part of the hot water supplied from the circulation heat source unit 72 to the hot water supply passage 8 is supplied to the heating heat exchanger 4 through the heating inflow passage 14 to be used for heating. After flowing through the heat exchanger 4, it returns to the warm water return channel 10 through the heating outflow channel 18, and the remaining portion of this warm water is supplied to the mist heat exchanger 6 through the heating inflow channel 22 to exchange heat for the mist. After flowing through the vessel 6, it returns to the hot water return flow path 10, and the hot water that has flowed to the hot water return flow path 10 in this way is returned to the circulation heat source unit 72. Further, water such as tap water is supplied to the mist heat exchanger 6 through the mist inflow channel 30.

  In the heating heat exchanger 4, heat exchange is performed between the air flowing through the heating heat exchanger 4 and hot water supplied from the circulation heat source unit 72, and the warm air heated by the heat exchange is generated. It is blown into the bathroom and heated by warm air. Further, in the heat exchanger 6 for mist, heat exchange is performed between the water from the mist inflow passage 30 and the hot water supplied from the circulation heat source 72, and the hot water heated by the heat exchange (for mist) Warm water) is supplied to the mist sprayer 36 through the mist outflow passage 34 and sprayed in the mist form from the mist sprayer 36 into the bathroom. Therefore, in this mist sauna operation state, since the mist is sprayed while heating the bathroom, a desired mist sauna effect can be obtained. The drain valve 58 is a proportional valve, and excess hot water flowing through the mist outlet channel 34 is drained through the drain channel 42.

  Next, with reference to FIGS. 3-5, the mist sauna driving | operation when the water heater 73 is connected is demonstrated. When the mist sauna operation is set by operating the remote controller 138, the hot water generator (in this case, the hot water heater 73) is activated (the combustion burner 104 is combustible and the on-off valve 116a is opened) ( In step S1), the mist control valve 54 is opened (step S2). In the water heater 73, when the water flows, the combustion burner 104 burns and hot water is generated. At this time, the water supply valve 52 is kept closed, so the combustion burner 104 does not burn.

  As described above, when a predetermined period (for example, 1 minute) has elapsed since the start of operation, the process proceeds from step S3 to step S4, and the temperature detected by the first temperature sensor 60 is equal to or higher than a predetermined set temperature (for example, 40 ° C.). Judgment is made. When the water heater 73 is connected, warm water does not flow through the warm water feed passage 8 of the heater body 2, and the detected temperature of the first temperature sensor 60 does not rise, even if a set time elapses from the start of operation. The detected temperature of the first temperature sensor 60 does not exceed the set temperature. In this embodiment, when the predetermined time elapses, the temperature comparison unit 128 compares the set temperature (for example, 40 ° C.) registered in the storage unit 136 with the detected temperature of the first temperature sensor 60, and the first temperature sensor If the detected temperature of 60 is lower than the set temperature, the hot water generator determining means 130 determines that the connected hot water generator is the hot water heater 73, assuming that hot water is not circulated through the hot water supply passage 8 ( In step S10), the valve switching signal generating means 132 generates a second control signal based on the determination result that the hot water heater 73 is connected, and the operation control means 126 is based on the second control signal. The first to fourth flow path switching valves 44, 46, 48 and 50 are held in the second control state (step S11).

  In this second control state, as shown in FIG. 3, the first flow path switching valve 44 communicates the mist outflow flow path 34 and the inflow connection flow path 38, and the second flow path switching valve 46 is in the inflow connection flow. The passage 38 and the heating inflow passage 14 are communicated, the third passage switching valve 48 is in communication with the heating outflow passage 18 and the outflow connection passage 40, and the fourth passage switching valve 50 is an outflow connection passage. 40 communicates with the mist outflow passage 34.

  Thereafter, the water supply valve 52 and the mist valve 56 are opened (step S12), and when the water flows, the combustion burner 104 of the water heater 73 burns to generate hot water, and the hot water from the water heater 73 flows into the mist inflow channel. The mist sauna operation state is sent to 30 and the mist spraying is performed in the bathroom from the mist sprayer 36 (step S13), and this mist sauna operation state is performed until the operation is completed.

  In this mist sauna operation state, hot water from the water heater 73 exchanges heat for heating through the mist inflow channel 30, the mist heat exchanger 6, the mist outflow channel 34, the inflow connection channel 38 and the heating inflow channel 14. After being fed through the heating heat exchanger 4, it is fed to the mist sprayer 36 through the heating outflow passage 18, the outflow connection passage 40 and the mist outflow passage 34. Therefore, in the heat exchanger 4 for heating, heat exchange is performed between the air flowing through the heat exchanger 4 for heating and the hot water supplied from the water heater 73, and the warm air heated by the heat exchange is generated. It is blown into the bathroom and heated by warm air. In addition, even when the hot water after heat exchange is supplied to the mist sprayer 36 and sprayed in the form of mist from the mist sprayer 36 into the bathroom, and the hot water heater 73 is connected, the mist is sprayed while heating the bathroom. As in the case where the circulating heat source device 72 is connected, a desired mist sauna effect is obtained. The surplus hot water supplied from the water heater 73 is drained through the drain passage 42.

  In the above-described embodiment, the type of the connected hot water generator (that is, whether the circulating heat source device 72 or the hot water heater 73) is determined every time the operation is started. It is not necessary to determine the type every time the operation is started. For example, the determination result once registered may be registered in the storage unit 136 of the controller 124, and the above-described control may be performed using the registration result. In such a case, for example, it is possible to determine the type of the hot water generator in the first operation after the power-on operation of the hot water generator (circulation type heat source device 72, hot water heater 73), and the determination result is stored in the storage means. It is desirable that the information is registered in 136 and displayed on the remote controller 138.

  In the above-described embodiment, the mist sauna operation by the bathroom heater has been described. However, in addition to such a mist sauna operation, a cool air operation may be added. In the cool air operation when the hot water heater 73 is connected, the first to fourth flow path switching valves 44, 46, 48, 50 are held in the second control state described above, and the mist valve 56 is closed. Further, the drain valve 58 may be kept open, and the temperature of the hot water supplied from the water heater 73 may be lowered. By doing so, the low temperature hot water from the water heater 73 is used for heating. After flowing through the heat exchanger 4, the water is drained through the drain passage 42, and cool air (for example, air of about 25 ° C.) is obtained by heat exchange with the low-temperature hot water in the heating heat exchanger 4. Is blown out. For example, by performing the cool air operation after the mist sauna operation, the body warmed after the mist sauna operation can be appropriately cooled to obtain a refreshing feeling.

  This cool wind operation can also be performed when the circulation heat source unit 72 is connected. In the cool wind operation when the circulation heat source unit 72 is connected, as shown in FIG. The switching valves 44, 46, 48, 50 are held in the second control state described above, the mist valve 56 is closed, and the drain valve 58 is held open. In such a state, the circulation heat source The operation of the machine 72 is stopped (that is, the circulation of the hot water is stopped), and water may be supplied through the mist inflow channel 30, so that the water supplied through the mist inflow channel 30 can be supplied. After flowing through the heat exchanger 4 for heating, it is drained through the drainage flow path 42, and a cool breeze is obtained by heat exchange with water in the heat exchanger 4 for heating, and this cool breeze is blown into the bathroom, as described above. Mist sauna operation It can be refreshed get the feeling of warm body to moderately cooled.

The above-described cool wind operation may be set in a mode so as to be automatically performed after the mist sauna operation, but may be selected manually by the user's selection.
As mentioned above, although one Embodiment of the bathroom heater according to this invention was described, this invention is not limited to this embodiment, A various change thru | or correction | amendment are possible, without deviating from the scope of the present invention. .

  For example, in the above-described embodiment, the first to fourth flow path switching valves 44, 46, 48, and 50 are configured from three-way valves, but instead of these three-way valves, they are configured from two on-off valves. However, even with this configuration, the hot water can be fed as required as described above.

The simplification figure which shows one Embodiment of the bathroom heater with a mist sauna function according to this invention. The figure which shows the state which connected the circulation type heat source machine to the bathroom heater of FIG. The figure which shows the state which connected the water heater to the bathroom heater of FIG. The block diagram which shows the control system of the bathroom heater of FIG. The flowchart which shows the control system of the bathroom heater of FIG. The figure for demonstrating the cool wind driving | running | working at the time of connecting a circulation type heat source machine to the bathroom heater of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Heating machine main body 4 Heat exchanger for heating 6 Heat exchanger for mist 8 Hot water supply flow path 10 Hot water return flow path 14 Heating inflow path 18 Heating outflow path 22 Heating inflow path 26 Heating outflow path 30 Mist inflow Flow path 34 Mist outflow path 38 Inflow connection flow path 40 Outflow connection flow path 42 Drainage flow path 44, 46, 48, 50 Flow path switching valve 52 Water supply valve 54 Mist control valve 56 Mist valve 58 Drainage valve 72 Circulating heat source machine 73 Water heater 124 Controller 130 Hot water generator determination means 132 Valve switching signal generation means

Claims (5)

A heating heat exchanger for generating hot air, a mist heat exchanger for generating hot water, and heating water for supplying warming water to the heating heat exchanger and the mist heat exchanger Hot water supply flow path, a heating water return flow path for returning hot water from the heating heat exchanger and the mist heat exchanger, an inflow portion of the heating heat exchanger, and the hot water supply flow path A heating inflow passage connecting the heating heat exchanger, an outflow portion of the heating heat exchanger and the warm water return passage, a first inflow portion of the mist heat exchanger, and the hot water supply. A heating inflow channel connecting the supply channel, a heating outflow channel connecting the first outflow part of the mist heat exchanger and the hot water return channel, and a second inflow of the mist heat exchanger A mist inflow channel connected to the part, and a mist outflow channel connected to the second outflow part of the heat exchanger for mist A mist sprayer connected to the downstream end of the mist outflow channel, an inflow connection channel connecting the mist outflow channel and the heating inflow channel, the mist outflow channel, and the heating outflow channel An outflow connection flow path connecting the flow path, a first flow path switching valve disposed at a connection portion between the inflow connection flow path and the mist outflow flow path, the inflow connection flow path, and the heating inflow flow path. A second flow path switching valve disposed at the connection portion, and a third flow path switching valve disposed at the connection portion between the heating outflow flow path and the outflow connection flow path,
A circulating heat source machine that generates and circulates hot water as a hot water generator and a water heater that generates and feeds hot water are selectively used. When the circulating heat source machine is used, When the hot water supply section is connected to the hot water supply flow path, the hot water return section is connected to the hot water return flow path, and the hot water heater is used, the hot water supply section of the hot water heater is the mist inflow flow path. Bathroom heater with mist sauna function, characterized by being connected to In the mist sauna operation in the case of using the circulation type heat source device, the first flow path switching valve feeds the hot water flowing through the mist outflow path downstream to the mist sprayer, and switches the second flow path. The valve feeds warming warm water flowing through the warm water feed channel to the inflow portion of the heating heat exchanger, and the third channel switching valve feeds warm water from the heating heat exchanger to the warm water. In the mist sauna operation in the case of using the water heater, the first flow path switching valve feeds the hot water flowing through the mist outflow path to the inflow connection flow path. The second flow path switching valve feeds hot water flowing through the inflow connection flow path to the inflow portion of the heating heat exchanger, and the third flow path switching valve receives hot water from the heating heat exchanger. The mist according to claim 1, wherein the mist is fed to the outflow connection channel. UNA function with bathroom heater. In the mist sauna operation when the circulation type heat source device is used, a fourth flow path switching valve is disposed at a connection portion between the mist outflow path and the outflow connection flow path. In the mist sauna operation when the hot water flowing through the mist outflow passage is fed downstream to the mist sprayer and the hot water heater is used, the fourth flow path switching valve is the hot water flowing through the outflow connection passage. The bathroom heater with a mist sauna function according to claim 1, wherein the mist sprayer is fed to the mist sprayer. In addition to the mist sauna operation, a cool air operation is possible.In the mist sauna operation, warm air is generated in the heat exchanger for heating, mist is generated in the mist sprayer, and in the cool air operation, The cool air is generated in the heat exchanger for heating, The bathroom heater with a mist sauna function according to any one of claims 1 to 3. In connection with the fact that the mist sauna operation and the cool air operation are possible, a drainage channel is connected to the mist outflow channel, a drainage valve is disposed in the drainage channel, and the mist outflow In the flow path, a mist valve is disposed in a portion of the flow path between the connection portion with the drain flow path and the mist sprayer. In the mist sauna operation using the circulating heat source device, the first flow path The switching valve feeds hot water flowing through the mist outflow passage downstream to the mist sprayer, and the second passage switching valve converts warming water flowing through the hot water feed passage into the heating heat exchanger. The third flow path switching valve feeds hot water from the heating heat exchanger to the warm water return flow path, the mist valve is held open, and the circulation For cool air operation when using a heat source The first flow path switching valve feeds water flowing through the mist outflow flow path to the inflow connection flow path, and the second flow path switching valve supplies water flowing through the inflow connection flow path to the heating heat exchanger. The third flow path switching valve feeds water from the heating heat exchanger to the outflow connection flow path, the mist valve is held in a closed state, and the drain valve is The bathroom heater with a mist sauna function according to claim 4, wherein the bathroom heater is held in an open state.

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