JP2005241225A - Bathroom heating drier with mist sauna function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce time and labor required for a trial run after construction by automatically carrying out a trial run of even a portion of a function providing a mist sauna bath from a heat source unit for confirmation of operation, and to shorten the time required for the trial run by providing smooth release of air from a water supply passage for mist and shortening time required for water filling of the water supply passage for mist. <P>SOLUTION: The bathroom heating drier is composed in such a manner that by a trial run command from the heat source unit 1, a water supply opening and closing valve 8 and a drain opening and closing valve 10 are opened, purging of the air of the water supply passage 7 for mist is carried out, water filling of the water supply passage 7 for mist is carried out, the drain opening and closing valve 10 is closed, water filling of a hot water passage 2 for heating and a passage 4 for heating is carried out, heating operation is carried out, hot air is produced by a heat exchanger 3 for hot air, spraying of the hot water is carried out from a mist nozzle 6, and determination of whether or not operation is normal is carried out by the trial run. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a bathroom heater / dryer having a mist sauna function capable of spraying hot water in a mist form in a bathroom to make a mist sauna.

  2. Description of the Related Art In recent years, bathroom heaters and dryers that are installed on the ceiling of a bathroom and the like to heat the bathroom, dry the bathroom, ventilate the bathroom, and blow the bathroom are provided. Such a bathroom heater / dryer performs heating and drying by obtaining heat from hot water supplied from a heat source device.

  After such a bathroom heater / dryer is installed in the bathroom and connected to the heat source machine, the operation by the trial operation can be confirmed by communication called intelligent communication by operation from the heat source machine side. To confirm the operation at this time, when the test run button on the substrate of the heat source unit is pressed, water is filled into the hot water circulation path of the bathroom heating dryer and whether there is a water leak or not, and then the bathroom heating dryer is checked. When the hot water is supplied and the heating operation of the bathroom heater / dryer is performed to check the temperature rise in the bathroom, OK is displayed if the above operation is normal, and NG is displayed if the operation is abnormal. In the case of a hot water terminal such as a bathroom heater / dryer, a trial run can be automatically performed by an operation from a heat source machine after the construction to confirm whether the operation is normal or not, thereby facilitating the construction.

By the way, recently, a bathroom heating dryer with a mist sauna function has been provided in which a mist nozzle for spraying hot water in a mist form is provided in such a bathroom heating dryer so that a mist sauna bath can be performed in the bathroom. (For example, refer to Patent Document 1). The bathroom heating / drying function part of this bathroom heater / dryer with a mist sauna function can be tested by the operation from the heat source side as described above, and the operation can be confirmed. The part of the function for spraying in the shape of a mist sauna bath cannot be confirmed by trial run from the heat source machine side like the part of the bathroom heating / drying function. In other words, in order to generate mist by spraying hot water from the mist nozzle in the form of mist, a mist water supply line for supplying clean water is connected to the mist nozzle, and water supply for opening and closing the water supply to the mist water supply line An on-off valve is provided, and a mist heat exchanger for heating water flowing through the mist feed pipe is disposed between the mist feed pipe and the pipe supplied with hot water from the heat source unit.
JP 2002-336155 A

  Since the part of the function for spraying warm water from the above mist nozzle in the form of a mist and taking a mist sauna bath cannot be automatically tested and inspected, the installer performs a normal operation that generates mist, and there is no water leak In addition, there is a problem that it is necessary to confirm the mist and hot air blowout, and the work of about 20 minutes is required, which requires time and labor for the work. The mist hot water is heated by the mist heat exchanger, but during the initial operation (immediately after construction), it takes time until the internal air in the mist water supply line is released (flowing the water fully open for about 3 minutes). There is a problem that the rise is slow.

  The present invention has been invented in view of the above-described conventional problems, and the function of the mist sauna bath can also be automatically tested by operation from the heat source machine to confirm the operation and after the construction. The time and labor required for the test run can be reduced, and the time required for the test run can be shortened by reducing the time required for water filling to the mist feed pipe by smoothly extracting air from the mist feed pipe. It is an object to provide a bathroom heater / dryer with a mist sauna function.

  In order to solve the above-mentioned problems, a bathroom heating / drying machine with a mist sauna function according to the present invention is connected to the heat source unit 1 and the heating hot water pipe 2 through which the hot water supplied from the heat source unit 1 circulates, and the heating hot water. A hot air heat exchanger 3 for generating hot air arranged in the pipe line 2, a mist heating pipe line 4 connected to the heating hot water pipe line 2, and hot water for a mist sauna in the bathroom 5. Mist nozzle 6 for spraying water in a mist form, mist water supply pipe 7 for supplying clean water to mist nozzle 6, water supply opening / closing valve 8 arranged in mist water supply pipe 7 for opening and closing water supply, and water supply opening and closing A mist drain line 9 is connected between the valve 8 and the mist nozzle 6 to the mist feed line 7 to drain water from the mist feed line 7 and a mist drain line 9. Mist with warm water flowing through the drain opening / closing valve 10 for opening / closing drainage and the mist heating pipe 4 A mist heat exchanger 12 provided between the mist heating pipeline 4 and the mist feed pipeline 7 for heating the water flowing through the feed water pipeline 7 is provided. The water supply on / off valve 8 and the drain on / off valve 10 are opened to purge the air in the mist water supply line 7 and fill the water to the mist water supply line 7 to close the drain on / off valve 10 while heating the hot water The pipe 2 and the mist heating pipe 4 are filled with water, and then the heating operation is performed, hot air is generated in the hot air heat exchanger 3 and hot water is sprayed from the mist nozzle 6. It is characterized by determining whether it is normal or not.

  By configuring as described above, in accordance with a trial operation command from the heat source unit 1, water is automatically filled into the mist water supply pipeline 7, and a mist generation trial operation is performed, and whether or not the operation is normal is determined by this trial operation. It is possible to automatically test the operation of the functional part of the mist sauna bath and confirm the operation, thereby reducing the time and labor during construction. Further, by removing the air from the mist water supply line 7 from the mist drain line 9, the time required for air removal can be increased, the water filling can be accelerated, and the time required for the trial operation can be further reduced.

  A mist hot water thermistor TH1 for detecting the temperature of hot water for mist heated by the heat exchanger 12 for mist is provided in the water supply line 7 for mist to detect the temperature rise of hot water for mist during the heating operation in the trial operation. It is also preferable to determine whether or not the operation is normal. When performing the heating operation in the trial operation, it is possible to easily determine whether or not the operation is normally performed by detecting the temperature of the hot water for mist passing through the mist water supply pipe 7.

  In addition, it is also preferable that self-determination as to whether or not the operation is normal during the trial operation and to transmit the determination result to the heat source unit 1. The heat source device 1 can confirm the result of the test operation and can easily confirm the result.

  As described above, according to the present invention, in accordance with a trial operation command from a heat source device, water filling to the water supply pipe for mist is automatically performed, and a trial operation for generating mist is performed, and whether or not the operation is normal can be determined by this trial operation. In addition, it is possible to automatically test the operation of the functional part of the mist sauna bath and to confirm the operation, thereby reducing the time and labor during construction, and the air in the mist water supply line is drained from the mist drain pipe. By pulling from the road, the time required for air venting can be shortened to speed up the water filling, and the time required for the test run can be further shortened.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. A bathroom heater / dryer A with a mist sauna function (hereinafter simply referred to as a bathroom heater / dryer) A according to the present invention shown in FIG. 1 and FIG. 2 heats the bathroom 5, ventilates the bathroom 5, In addition to the function of drying the dried laundry and blowing the air into the bathroom 5, it has a function of spraying hot water in the bathroom 5 in a mist state to perform a mist sauna bath. This bathroom heating / drying machine A is mainly composed of a bathroom heating / drying machine main body 16 and a grill plate 17 attached to the lower surface of the bathroom heating / drying machine main body 16. The bathroom heater / dryer main body 16 is arranged behind the ceiling, is suspended and supported on a ceiling slab by a hanging metal fitting 18 and the like, and the lower surface of the bathroom heater / dryer main body 16 faces the opening of the ceiling plate 19. . A grill plate 17 is disposed so as to cover the opening from under the ceiling plate 19, and the grill plate 17 is attached to the lower surface side of the bathroom heating / drying machine main body 16. In this way, the grill plate 17 is attached so that the peripheral edge of the opening of the ceiling plate 19 is sandwiched between the lower surface of the peripheral edge of the bathroom heater / dryer main body 16 and the peripheral edge of the grill plate 17.

  Inside the bathroom heater / dryer main body 16, a heat exchanger 3 for hot air and a blower 21 are provided. The heat exchanger 3 for hot air exchanges heat with air flowing outside by passing hot water through the inside. This hot air heat exchanger 3 is arranged in the middle of a heating hot water pipe 2 piped to a bathroom heating / drying machine main body 16, and the heating hot water pipe 2 is supplied with hot water from a heat source machine 1 such as a water heater. Is to be supplied. A heating on / off valve 22 such as a thermal valve that opens and closes the supply of hot water to the hot air heat exchanger 3 is provided in the middle of the heating hot water pipe 2. A heating hot water thermistor TH2 for detecting the temperature of the hot water flowing through the pipe is disposed in the middle. The blower 21 includes a circulation fan 21a and a ventilation fan 21b. A movable louver 25 that opens and closes the air outlet 24 is rotatably mounted at a position corresponding to the air outlet 24 of the bathroom heater / dryer body 16. The grill plate 17 is provided with a suction port 26 for sucking air in the bathroom 5, and a bathroom temperature thermistor TH 3 for detecting the temperature of the bathroom 5 is arranged in the vicinity of the suction port 26. The bathroom heater / dryer A can be operated by an operating device 20 provided on the wall surface of the bathroom 5.

  When the heating operation for heating the inside of the bathroom 5 is performed, the heating on-off valve 22 is opened, hot water is supplied to the hot air heat exchanger 3, the ventilation fan 21b is stopped, and the circulation fan 21a is driven. Then, the movable louver 25 is opened and the air outlet 24 is opened. Then, the air in the bathroom 5 is sucked into the bathroom heating / drying machine main body 16 from the suction port 26, and hot air heated by exchanging heat with warm water in the hot air heat exchanger 3 is blown out from the air outlet 24. Thus, the air circulates and the inside of the bathroom 5 is heated.

  When performing a ventilation operation to ventilate the bathroom 5, the heating on / off valve 22 is closed to stop the supply of hot water to the hot air heat exchanger 3, the circulation fan 21a is stopped, and the ventilation fan 21b is turned on. Driven, the movable louver 25 is closed and the outlet 24 is closed. Then, the air in the bathroom 5 is sucked into the bathroom heating / drying machine main body 16 from the suction port 26 and is exhausted to the outside through the exhaust duct 27, whereby the ventilation in the bathroom 5 is performed.

  When drying the bathroom 5 or drying the laundry dried in the bathroom 5, the heating on-off valve 22 is opened to supply hot water to the hot air heat exchanger 3 for circulation. The fan 21a and the ventilation fan 21b are driven, the movable louver 25 is opened, and the outlet 24 is opened. Then, the air in the bathroom 5 is sucked into the bathroom heating / drying machine main body 16 from the suction port 26, and the hot air heated by exchanging heat with warm water in the hot air heat exchanger 3 is blown out from the outlet 24. On the other hand, a part of the air sucked into the bathroom heating / drying machine main body 16 is exhausted to the outside through the exhaust duct 27. Thereby, the humidity in the bathroom 5 is lowered, and the drying in the bathroom 5 and the laundry dried in the bathroom 5 are performed.

  When blowing cool air into the bathroom, the heating on-off valve 22 is closed to stop the supply of hot water to the hot air heat exchanger 3, the ventilation fan 21b is stopped, and the circulation fan 21a is driven. Then, the movable louver 25 is opened and the air outlet 24 is opened. Then, the air in the bathroom 5 is sucked into the bathroom heating / drying machine main body 16 from the suction port 26, the air circulates so that the air is blown out from the blowout port 24, and cool air is blown into the bathroom 5. .

  Moreover, in this invention, in order to give such a bathroom heating dryer A the function of a mist sauna, the mist sauna part 31 is incorporated. The mist nozzle 6 of the mist sauna section 31 is disposed in the grill plate 17, and the mist water supply line 7 is communicated with the mist nozzle 6. In this example, the mist nozzle 6 includes a large mist nozzle 6a and a small mist nozzle 6b. The large mist nozzle 6a sprays a relatively large mist of particles at a large flow rate, for example, about 1 liter / min. The small mist nozzle 6b sprays mist with relatively small particles at a small flow rate, and is, for example, about 0.5 liter / min. Mist opening / closing valves 28a, 28b such as electromagnetic valves are provided in front of the mist nozzles 6a, 6b, and mist is selectively generated from the large mist nozzle 6a and the small mist nozzle 6b by opening / closing the mist opening / closing valves 28a, 28b. It comes to be sprayed. In the case of this example, the mist sauna unit 31 is mounted on the bathroom heater / dryer main body 16. In FIG. 2, reference numeral 34 denotes a box containing mist opening / closing valves 28a and 28b.

  The mist water supply pipe 7 is supplied with tap water such as tap water, and is provided with a strainer 29 and a water supply opening / closing valve 8 such as an electromagnetic valve in order from the inlet side. The heating hot water pipe 2 is provided with a mist heating pipe 4 in parallel with the hot air heat exchanger 3, and the mist heating pipe 4 is provided in the middle of the mist heating pipe 4. A proportional valve 30 is provided for controlling the flow of hot water flowing in the water. A mist heat exchanger 12, which is a liquid heat exchanger such as a plate heat exchanger, is disposed between the mist heating pipeline 4 and the mist feed water pipeline 7. The water for mist flowing through the mist feed pipe 7 is heated by the hot water flowing through the mist. A mist drain pipe 9 is branched from the mist feed pipe 7 between the mist heat exchanger 12 and the mist open / close valves 28a, 28b, and water in the mist feed pipe 7 is drained from the mist drain pipe 7. It can be discharged from the road 9 into the bathroom 5 and out of the bathroom 5. The mist drain line 9 is provided with a drain on / off valve 10 such as an electromagnetic valve, and a vacuum breaker 33 that prevents negative pressure from being generated and reverse drainage. Further, a mist hot water thermistor TH1 for detecting the temperature of hot water flowing through the mist water supply pipe 7 is disposed between the mist heat exchanger 12 and the mist open / close valves 28a and 28b.

  When the mist sauna bath is used, the water supply opening / closing valve 8 is opened to supply water to the mist supply pipe 7 and the proportional valve 30 is opened to circulate hot water through the mist heating pipe 4. Thereby, the water flowing through the mist feed pipe 7 is heated by the mist heat exchanger 12, and the hot water flows through the mist feed pipe 7. When the mist open / close valves 28a and 28b are opened in this state, hot water mist is selectively sprayed from the large mist nozzle 6a and the small mist nozzle 6b to perform a mist sauna bath. When the mist is sprayed from the large mist nozzle 6a, a large amount of heat is obtained and a hard mist sauna bath can be obtained, and when the mist is sprayed from the small mist nozzle 6b, a fine mist is sprayed to form a soft mist sauna bath. When the mist sauna bath is performed in this manner, the bathroom heater / dryer A is heated as described above to raise the temperature in the bathroom 5 so that the mist sauna bath can be comfortably performed.

  The bathroom heating / drying machine A of the present invention has the above-described structure, but after the bathroom heating / drying machine A is installed in the bathroom 5, a trial operation is performed in accordance with a command from the heat source machine 1 side. . In the case of the present invention, the mist sauna unit 31 is also automatically trial run on the bathroom heater / dryer main body 16 side, and the trial run is performed according to the flow shown in FIG. A portion indicated by * in FIG. 4 is a portion added for automatic test operation of the mist sauna unit 31. This flow will be described as follows.

  When the trial operation switch of the heat source device 1 is turned on, a heating trial operation start signal is output, the heating lamp “strong” blinks, and the heating trial operation is started. At this time, the heating on / off valve 22, the water supply on / off valve 8, the drain on / off valve 10, and the proportional valve 30 are opened, and water is supplied to the heating hot water pipeline 3 and is filled with water to the mist water supply pipeline 7. When the mist water supply pipe 7 is filled with water, since the drain opening / closing valve 10 is opened, the air in the mist water supply pipe 7 is removed and the mist water supply pipe 7 is quickly filled with water. That is, the water can be filled much more quickly than when the mist open / close valves 28a and 28b are opened and water filled. When a predetermined time (for example, 3 minutes) elapses from the start of water filling, the drain opening / closing valve 10 is closed because the air in the mist water supply pipe 7 has escaped and the water has been filled. When the water level fluctuation on the heat source unit 1 side is lost, a water filling end signal is issued.

  When the water filling end signal is detected, the circulation fan 21a is turned on, the mist opening / closing valves 28a and 28b are opened, and the temperature of the bathroom 5 is measured by the bathroom temperature thermistor TH3. Then, it is determined whether the temperature of the bathroom 5 has risen by, for example, 3K before a predetermined time (for example, 9 minutes 30 seconds) elapses. At this time, the temperature of hot water flowing through the heating hot water pipe 2 is measured by the heating hot water thermistor TH2, and the temperature of mist hot water in the mist water supply pipe 7 is measured by the mist hot water thermistor TH1, and the predetermined time (for example, Within 9 minutes and 30 seconds), it is determined whether the temperature of the hot water in the hot water pipe 2 for heating has become, for example, 40 ° C. or higher, or whether the temperature of the hot water for mist in the water supply pipe for mist 7 has become, for example, 40 ° C. or higher. . The temperature of the bathroom 5 does not rise 3K within a predetermined time, the temperature of the hot water in the heating hot water pipe 2 does not exceed 40 ° C., or the temperature of the hot water for mist in the water supply pipe 7 for mist is 40 ° C. If not, the trial run determination is NG, an abnormality is displayed, the automatic trial run becomes abnormal, and the operation is stopped. On the other hand, the temperature of the bathroom 5 rises by 3K within a predetermined time, the temperature of the hot water in the heating hot water conduit 2 becomes 40 ° C. or higher, and the temperature of the mist hot water in the mist water supply conduit 7 becomes 40 ° C. or higher. At that time, the test run determination is OK, the test run result is transmitted to the heat source unit 1, the heating on-off valve 22, the water supply on-off valve 8, the mist on-off valves 28a and 28b, the proportional valve 30 are closed, and the circulation fan 21a is When it is turned off and a test run end signal is issued, the heating lamp “strong” is turned off and the test run ends.

  In the above example, the mist open / close valves 28a and 28b made of electromagnetic valves are provided as close as possible to the mist nozzles 6a and 6b, so that water and air can be removed due to air intrusion from the mist nozzles 6a and 6b when the mist sauna is not used. In the example shown in FIG. 5, the mist opening / closing valves 28 a and 28 b are separated from the mist nozzles 6 a and 6 b and are provided at positions close to the mist heat exchanger 12. As a result, valves such as the mist opening / closing valves 28a and 28b, the proportional valve 30, the water supply opening / closing valve 8, and the drainage opening / closing valve 10 are concentrated on the mist heat exchanger 12, so that assembly of wiring and the like is performed. It becomes easy to do. In the case of this example, in this state, air replacement in the pipe between the mist opening / closing valves 28a, 28b and the mist nozzles 6a, 6b due to air intrusion from the mist nozzles 6a, 6b and water contamination occur, but this is prevented. Therefore, check valves 32a and 32b are provided in the vicinity of the mist nozzles 6a and 6b. The check valves 32a and 32b are normally closed, and are opened only when a predetermined or higher water pressure is applied from the water supply pipe 7 for mist. When the check valves 32a and 32b are provided in this way, the mist sauna is closed when the mist sauna is not used, and air does not flow in. As a result, the distance between the mist nozzles 6a, 6b and the mist opening / closing valves 28a, 28b can be increased, wiring and assembly can be facilitated, and hygienic effects (contaminated water is not sprayed) can be obtained. In the case of the bathroom heating / drying machine A having such a structure, the bathroom heating / drying machine A may be water-filled as follows when the bathroom heating / drying machine A is installed and trial run is performed. That is, when water is filled in the mist water supply pipe 7, water is injected while the water supply on / off valve 8 and the drain on / off valve 10 are opened and the air is removed. At this time, if the mist on / off valves 28a and 28b are also opened, Water filling can be smoothly performed before the valves 32a and 32b.

It is a pipe line figure explaining piping inside a bathroom heating dryer of an example of an embodiment of the invention. It is sectional drawing of a bathroom heating dryer same as the above. It is a partially notched perspective view of the state which installed the bathroom heating dryer same as the above in the bathroom. It is a flowchart of a trial run same as the above. It is a pipe line figure of other examples same as the above.

Explanation of symbols

1 heat source machine
2 Hot water pipes for heating
3 Heat exchanger for hot air 4 Mist heating line 5 Bathroom 6 Mist nozzle 7 Mist water supply line 8 Water supply opening / closing valve
9 Mist drain line 10 Drain open / close valve

Claims (3)

A hot water pipe for heating through which hot water supplied from the heat source machine circulates by connecting to the heat source machine, a hot air heat exchanger for generating hot air arranged in the hot water pipe for heating, and hot water for heating A mist heating pipe connected to the pipe, a mist nozzle that sprays hot water for mist sauna in the bathroom in a mist form, a mist feed pipe that supplies clean water to the mist nozzle, and a mist feed pipe A water supply opening / closing valve arranged on the road to open and close the water supply, and a mist drainage pipe for draining water from the water supply line for mist by connecting to the water supply pipe for mist between the water supply on / off valve and the mist nozzle, and A mist heating pipe and a mist water supply for heating the water flowing through the mist water supply pipe with the hot water flowing through the mist heating pipe and being arranged in the mist drain pipe to open and close the drainage A heat exchanger for mist provided between the pipe and the heat source In response to a trial operation command from, the water supply on / off valve and the drain on / off valve are opened to purge the air in the mist water supply line, and the water supply to the mist water supply line is filled to close the drain on / off valve, while heating water for heating is used. Water is filled in the pipeline and the mist heating pipeline, then heating operation is performed, hot air is generated in the heat exchanger for hot air, and hot water is sprayed from the mist nozzle. A bathroom heating dryer with a mist sauna function, characterized in that the determination is made. A mist hot water thermistor that detects the temperature of hot water for mist heated by the heat exchanger for mist is installed in the water supply line for mist, and the operation is performed by detecting the temperature rise of hot water for mist during the heating operation in the trial operation. 2. The bathroom heating dryer with a mist sauna function according to claim 1, wherein it is determined whether or not it is normal. The bathroom heating dryer with a mist sauna function according to claim 1 or 2, wherein a self-determination of whether or not the operation is normal during a trial operation and the determination result is transmitted to a heat source device.

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