JP2015145768A - Mist sauna device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent heated water from being jetted when performing cold water mist operation, in a mist sauna device which includes a mist nozzle 16 facing a bathroom BR, a water supply passage 17 for supplying water to the mist nozzle 16, a fluid-fluid heat exchanger 18 interposed in the water supply passage 17, and a heating medium circulation passage 19 in which a heating medium heated by a heat source machine 8 is circulated, which has water temperature detection means 23 in a portion of the water supply passage on the downstream side of the fluid-fluid heat exchanger 18 and which can choose between hot water mist operation for heating the water supplied to the mist nozzle 16 via the fluid-fluid heat exchanger 18 and jetting it from the mist nozzle 16 and cold water mist operation for jetting the water supplied to the mist nozzle 16 without heating it from the mist nozzle 16.SOLUTION: Water temperature detection means 23 is located above an outlet of a fluid-fluid heat exchanger 18, and when cold water mist operation is selected, the start of the cold water mist operation is delayed until the detection temperature of the water temperature detection means 23 becomes equal to or lower than predetermined temperature.

Description

  The present invention includes a mist nozzle facing a bathroom, a water supply path for supplying water to the mist nozzle, a liquid heat exchanger having a secondary side interposed in the water supply path, and a heat medium heated by a heat source apparatus. The present invention relates to a mist sauna apparatus that includes a heat medium circulation path that circulates via a primary side of a heat exchanger, and that includes a water temperature detection means in a portion of a water supply path downstream of the liquid heat exchanger.

  Conventionally, as this type of mist sauna device, the water supplied to the mist nozzle is passed through a liquid heat exchanger so that the temperature detected by the water temperature detection means becomes a predetermined set temperature by the heat medium circulated in the heat medium circulation path. What performs the hot water mist driving | running | working heated and sprayed from a mist nozzle is known (for example, refer patent document 1). Also, although not disclosed in Patent Document 1, there is also known a mist sauna device that allows selection of the hot water mist operation and a cold water mist operation in which water supplied to the mist nozzle is sprayed without being heated. It has been.

  However, in this case, when the cold water mist operation is performed after the hot water mist operation is stopped, the water supplied to the mist nozzle is heated by the heat of the liquid heat exchanger until the liquid heat exchanger cools by natural heat dissipation. And the heated water is sprayed. Since the user has selected the cold water mist operation, the user may hold his / her face or hand over the mist nozzle, and if the heated water is sprayed, the user is uncomfortable.

JP 2011-94885 A

  This invention makes it the subject to provide the mist sauna apparatus which enabled it to prevent that the heated water was sprayed when performing cold water mist driving | operation in view of the above point.

  In order to solve the above-mentioned problem, the first invention of the present application includes a mist nozzle facing the bathroom, a water supply channel for supplying water to the mist nozzle, a liquid heat exchanger having a secondary side interposed in the water supply channel, A heat medium circulation path that circulates the heat medium heated by the heat source device through the primary side of the liquid-to-liquid heat exchanger, and a water temperature detection means is provided in the water supply channel portion downstream of the liquid-to-liquid heat exchanger. It is a mist sauna device that heats water supplied to the mist nozzle through a liquid heat exchanger and sprays it from the mist nozzle by a heat medium circulated in the heat medium circulation path, and a mist nozzle. The water temperature detection means is positioned above the outlet on the secondary side of the heat exchanger, and the cold water mist operation is selected. The temperature detected by the water temperature detection means. There wherein the delaying the start of the cold mist operation until the predetermined temperature or below.

  According to the first aspect of the invention, when the cold water mist operation is selected, the cold water mist operation is not started until the temperature detected by the water temperature detecting means becomes equal to or lower than the predetermined temperature. And until the liquid heat exchanger radiates and cools, the water temperature of the water supply channel above the outlet on the secondary side of the heat exchanger is higher than that of the other parts due to the natural convection of the heat of the liquid heat exchanger. The water temperature becomes higher and can be detected by the water temperature detecting means. Therefore, if the temperature detected by the water temperature detecting means is equal to or lower than the predetermined temperature, water having a temperature higher than the predetermined temperature is not sprayed from the mist nozzle after the cold water mist operation is started. Accordingly, when the cold water mist operation is performed, it is possible to reliably prevent the heated water from being sprayed.

  Further, in the first invention, in the case where air blowing means for sending air into the bathroom is further provided, when the cold water mist operation is selected, the air blowing means is operated, and the air sent by the operation of the air blowing means is liquid-to-liquid heat exchanger. It is desirable to flow in the arrangement part. According to this, since the air sent by the operation of the air blowing means flows through the arrangement portion of the liquid-liquid heat exchanger, the heat dissipation of the liquid-liquid heat exchanger is promoted, so the waiting time until the start of the cold water mist operation is reduced. In addition, the body surface temperature of the user can be lowered by the air sent by the operation of the blowing means.

  Moreover, 2nd invention of this application was heated with the mist nozzle which faces a bathroom, the water supply path which supplies water to a mist nozzle, the liquid heat exchanger which interposed the secondary side in the water supply path, and the heat source machine A mist sauna device comprising a heat medium circulation path for circulating a heat medium through a primary side of a liquid-to-liquid heat exchanger, and provided with a water temperature detection means in a portion of a water supply path on the downstream side of the liquid-to-liquid heat exchanger. The water supplied to the mist nozzle is heated via the liquid-liquid heat exchanger by the heat medium circulated in the heat medium circuit, and the water supplied to the mist nozzle is heated by spraying from the mist nozzle. In addition, it is possible to select the cold water mist operation to be sprayed from the mist nozzle, further comprising a blowing means for sending air into the bathroom, and when the cold water mist operation is selected, the blowing means is operated and the blowing means Sent by the operation of The flow in the arrangement portion of the liquid-liquid heat exchanger, the temperature detected by the coolant temperature detecting means is equal to or delaying the onset of cold mist operation until the predetermined temperature or below.

  According to the second invention, when the cold water mist operation is selected, the cold water mist operation is not started until the temperature detected by the water temperature detecting means becomes equal to or lower than the predetermined temperature. On the other hand, the air sent by the operation of the air blowing means flows through the arrangement portion of the liquid-liquid heat exchanger, so that the heat dissipation of the liquid-liquid heat exchanger is promoted. Therefore, when performing the cold water mist operation, it is possible to prevent the heated water from being sprayed while shortening the waiting time until the start of the cold water mist operation. Further, the body surface temperature of the user can be lowered by the air sent by the operation of the blowing means.

The block diagram of the bathroom heater which comprises the mist sauna apparatus of embodiment of this invention. The flowchart which shows the control content which the mist sauna apparatus of embodiment performs.

  With reference to FIG. 1, 1 has shown the bathroom heater which comprises the mist sauna apparatus of embodiment of this invention. The bathroom heater 1 is installed on the ceiling of the bathroom BR. The lower surface cover 2 of the bathroom heater 1 is provided with a suction port 3 and an outlet 4 with a variable louver 4a. The bathroom heater 1 is provided with a ventilation path 5 extending from the suction port 3 to the outlet 4, and the air in the bathroom BR is sucked into the ventilation path 5 from the inlet 3 and the bathroom BR is discharged from the outlet 4. A circulation fan 6 serving as a blowing means to be sent inside and a radiator 7 for heating the air flowing through the ventilation path 5 are arranged.

  The radiator 7 is connected to a heating medium circulation path 9 for heating that is connected to a separate heat source unit 8. The heating medium circulation path 9 includes a forward path 9a that supplies the heat medium heated by the heat source unit 8 to the radiator 7 and a return path 9b that returns the heat medium that has passed through the radiator 7 to the heat source unit 8. Yes. A heating heat medium valve 10 comprising an on-off valve is interposed in the forward path 9 a of the heating medium circulation path 9, and the heat medium heated by the heat source device 8 is opened by the heating medium valve 10. It is circulated to the heating medium circulation path 9 via the radiator 7. Then, the air in the bathroom BR sucked from the suction port 3 by the operation of the circulation fan 6 is heated by the radiator 7, is sent as hot air into the bathroom BR from the outlet 4, and the bathroom BR is heated. .

  A room temperature thermistor 11 is provided facing the suction port 3, and a heat medium thermistor 12 is provided in the forward path 9 a of the heating medium circulation path 9.

  In addition, a ventilation passage 13 is provided which branches from the portion of the ventilation path 5 on the suction port 3 side and extends outdoors. And the ventilation fan 14 is provided in the ventilation path 13, and the ventilation fan 14 is operated, The air in bathroom BR is exhausted outdoors. The ventilation passage 13 is provided with a ventilation damper 15 located downstream of the ventilation fan 14 for preventing backflow.

  The bathroom heater 1 further includes a mist nozzle 16 facing the bathroom BR provided on the lower surface cover 2, a water supply path 17 for supplying water to the mist nozzle 16, and a liquid heat exchanger 18. The secondary side 18 b of the liquid heat exchanger 18 is interposed in the water supply path 17. Then, the heat medium heated by the heat source unit 8 is circulated to the primary side 18a of the liquid heat exchanger 18 through the heat medium circulation path 19 for mist branched from the heating medium circulation path 9 for heating. Water that is supplied to the mist nozzle 16 is heated by the medium via the liquid heat exchanger 18.

  The mist heat medium circulation path 19 is branched from the forward path 9a of the heating heat medium circulation path 9 and connected to the inlet of the primary side 18a of the liquid heat exchanger 18, and the heating heat medium circulation path 9 and an outflow passage 19b branched from the return passage 9b and connected to the outlet of the primary side 18a of the liquid heat exchanger 18. A heat medium valve 20 for mist that can adjust the flow rate of the heat medium and interrupt the circulation of the heat medium is interposed in the outflow path 19b.

  A water supply valve 21 including an on-off valve is provided in the water supply path 17 so as to be positioned on the upstream side of the liquid heat exchanger 18, and also includes an on-off valve positioned on the downstream side of the liquid heat exchanger 18. A mist valve 22 is interposed. Further, a mist thermistor 23 serving as a water temperature detecting means is provided in a portion of the water supply passage 17 between the liquid heat exchanger 18 and the mist valve 22.

  The circulation fan 6, heating heat medium valve 10, ventilation fan 14, mist heat medium valve 20, water supply valve 21, and mist valve 22 are controlled by the controller C of the bathroom heater 1. The controller C receives detection signals from the room temperature thermistor 11, the heat medium thermistor 12, and the mist thermistor 23. The controller C is connected to a remote controller installed in the bathroom BR so that communication is possible. Then, a hot water mist operation in which water supplied to the mist nozzle 16 is heated via the liquid heat exchanger 18 and sprayed from the mist nozzle 16 by the heat medium circulated in the mist heat medium circulation path 19, and the mist nozzle The cold water mist operation sprayed from the mist nozzle 16 without heating the water supplied to the mist nozzle 16 can be selected by a hot water mist switch and a cold water mist switch provided on the remote controller.

  During the hot water mist operation, the flow rate of the heat medium flowing through the mist heat medium circulation path 19 is controlled by the mist heat medium valve 20 so that the detected temperature of the mist thermistor 23 becomes a predetermined set temperature.

  By the way, when the cold water mist operation is performed after the hot water mist operation is stopped, the water supplied to the mist nozzle 16 is heated by the heat of the liquid heat exchanger 18 until the liquid heat exchanger 18 is naturally dissipated and cooled. The heated water will be sprayed. Since the user has selected the cold water mist operation, the user may hold his / her face or hand over the mist nozzle 16, and if the heated water is sprayed, the user is uncomfortable.

  Therefore, in the present embodiment, the mist thermistor 23 is positioned above the outlet of the secondary side 18b of the liquid heat exchanger 18. Then, when the cold water mist operation is selected, the controller C delays the start of the cold water mist operation until the detected temperature of the mist thermistor 23 becomes a predetermined temperature or lower.

  Further, a liquid heat exchanger 18 is disposed in the space 5a adjacent to the portion of the ventilation path 5 on the downstream side of the circulation fan 6, and a plurality (for example, four) of communicating and blocking the space 5a to and from the ventilation path 5. The ventilation damper 24 is provided. As shown by a solid line in FIG. 1, the blower damper 24 is in an open state in which the space 5a communicates with the air passage 5 by being horizontal, and is arranged in a straight line as shown by a dotted line in FIG. 5a is closed from the ventilation path 5. Then, when the cold water mist operation is selected, the controller C activates the circulation fan 6, opens the blower damper 24, and arranges the air sent by the operation of the circulation fan 6 in the arrangement of the liquid heat exchanger 18. Shed in the department. The blower damper 24 can be omitted.

  Hereinafter, the cold water mist operation will be described in detail with reference to FIG. First, when the user turns on the cold water mist switch of the remote controller and the cold water mist operation is selected, the heat medium valve 20 for mist is closed and the water supply valve 21 and the mist valve 22 are closed in STEP 1. . At this time, the circulation fan 6 is operated and the blower damper 24 is opened.

  Subsequently, in STEP 2, temperature detection by the mist thermistor 23 is started, and it is determined whether or not the detected temperature of the mist thermistor 23 has become equal to or lower than a predetermined temperature YT. When the detected temperature of the mist thermistor 23 becomes equal to or lower than the predetermined temperature YT, the water supply valve 21 and the mist valve 22 are opened in STEP 3 to start the cold water mist operation.

  After the start of the cold water mist operation, it is determined in STEP 4 whether or not there is an instruction to stop the cold water mist operation. If there is an instruction to stop, the water supply valve 21 and the mist valve 22 are closed in STEP 5 and further circulated. While the fan 6 is stopped, the blower damper 24 is closed, and the cold water mist operation is finished.

  According to the present embodiment, when the cold water mist operation is selected, the cold water mist operation is not started until the detected temperature of the mist thermistor 23 becomes equal to or lower than the predetermined temperature YT. Until the liquid heat exchanger 18 dissipates heat and cools, due to the natural convection of the heat of the liquid heat exchanger 18, the portion of the water supply channel 17 above the outlet of the secondary side 18b of the liquid heat exchanger 18 The water temperature becomes higher than other portions, and this water temperature can be detected by the mist thermistor 23. Therefore, if the detected temperature of the mist thermistor 23 is equal to or lower than the predetermined temperature YT, water having a temperature higher than the predetermined temperature YT is not sprayed from the mist nozzle 16 after the cold water mist operation is started. Accordingly, when the cold water mist operation is performed, it is possible to reliably prevent the heated water from being sprayed.

  In addition, if the predetermined temperature TY is set according to the upper limit value (for example, 35 ° C.) of the temperature range in which the user who is going to take cold water mist does not feel uncomfortable, the user selects the cold water mist operation. Then, when the face or hand is held over the mist nozzle 16, it is possible to prevent the heated water from being sprayed and causing discomfort to the user.

  Furthermore, in this embodiment, since the air sent by the action | operation of the circulation fan 6 flows through the arrangement | positioning part of the liquid-liquid heat exchanger 18, since heat dissipation of the liquid-liquid heat exchanger 18 is accelerated | stimulated, start of cold water mist operation | movement is started. Waiting time until the user's body surface temperature can be lowered by the air sent by the operation of the circulation fan 6.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this. For example, one of the air sent by the operation of the circulation fan 6 branched from the ventilation path 5 without arranging the liquid heat exchanger 18 in the space 5a adjacent to the portion of the ventilation path 5 on the downstream side of the circulation fan 6. A branch ventilation path through which the section flows may be provided, and the liquid heat exchanger 18 may be disposed in the branch ventilation path. However, if such a branch ventilation path is provided, the cost increases, so it is desirable to arrange the liquid heat exchanger 18 in the space 5a.

  Further, in order to surely prevent the heated water from being sprayed, in the above embodiment, the mist thermistor 23 is positioned above the outlet of the secondary side 18b of the liquid heat exchanger 18, It does not necessarily have to be so positioned.

  Furthermore, in the said embodiment, although the mist sauna apparatus is integrated in the bathroom heater 1, this invention is applicable similarly to the mist sauna apparatus provided separately from the bathroom heater 1.

  BR ... Bathroom, 6 ... Circulating fan (air blowing means), 8 ... Heat source machine, 16 ... Mist nozzle, 17 ... Water supply channel, 18 ... Liquid heat exchanger, 19 ... Heat medium circulation channel for mist, 23 ... Mist thermistor ( Water temperature detection means).

Claims (3)

A mist nozzle facing the bathroom, a water supply channel for supplying water to the mist nozzle, a liquid heat exchanger with a secondary side in the water supply channel, and a heat medium heated by a heat source unit A mist sauna device comprising a heat medium circulation path that circulates through the primary side, and provided with a water temperature detection means in a part of the water supply path downstream of the liquid heat exchanger,
The water supplied to the mist nozzle is heated via the liquid heat exchanger and sprayed from the mist nozzle by the heat medium circulated in the heat medium circulation path, and the water supplied to the mist nozzle is not heated. In addition, in what can be selected with cold water mist operation sprayed from the mist nozzle,
Position the water temperature detection means above the outlet on the secondary side of the liquid-liquid heat exchanger,
When the cold water mist operation is selected, the start of the cold water mist operation is delayed until the temperature detected by the water temperature detecting means becomes equal to or lower than a predetermined temperature. The mist sauna device according to claim 1,
In further comprising a blowing means for sending air into the bathroom,
A mist sauna device characterized in that, when cold water mist operation is selected, the air blowing means is operated, and the air sent by the operation of the air blowing means is caused to flow to the arrangement portion of the liquid-liquid heat exchanger. A mist nozzle facing the bathroom, a water supply channel for supplying water to the mist nozzle, a liquid heat exchanger with a secondary side in the water supply channel, and a heat medium heated by a heat source unit A mist sauna device comprising a heat medium circulation path that circulates through the primary side, and provided with a water temperature detection means in a part of the water supply path downstream of the liquid heat exchanger,
The water supplied to the mist nozzle is heated via the liquid heat exchanger and sprayed from the mist nozzle by the heat medium circulated in the heat medium circulation path, and the water supplied to the mist nozzle is not heated. In addition, in what can be selected with cold water mist operation sprayed from the mist nozzle,
It further includes a blowing means for sending air into the bathroom,
When the cold water mist operation is selected, the air blowing unit is operated, and the air sent by the operation of the air blowing unit is allowed to flow through the arrangement portion of the liquid heat exchanger, and the cold water is detected until the temperature detected by the water temperature detecting unit falls below a predetermined temperature. A mist sauna device characterized by delaying the start of mist operation.

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