JP4612363B2 - Mist sauna equipment - Google Patents

Mist sauna equipment Download PDF

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JP4612363B2
JP4612363B2 JP2004253086A JP2004253086A JP4612363B2 JP 4612363 B2 JP4612363 B2 JP 4612363B2 JP 2004253086 A JP2004253086 A JP 2004253086A JP 2004253086 A JP2004253086 A JP 2004253086A JP 4612363 B2 JP4612363 B2 JP 4612363B2
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mist
hot water
water
water supply
pipe
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JP2006068129A (en
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陽祐 長澤
和幸 森本
勝弘 内川
広之 千種
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Osaka Gas Co Ltd
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Osaka Gas Co Ltd
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Description

本発明は、浴室に温水をミスト状に噴霧してミストサウナ浴できるミストサウナ装置に関するものである。   The present invention relates to a mist sauna apparatus capable of spraying hot water in a mist form in a bathroom to make a mist sauna bath.

近年、浴室の天井等に設置して浴室の暖房や浴室の乾燥や浴室の換気や浴室の送風を行う浴室暖房乾燥機において、浴室内に温水をミスト状に噴霧してミストサウナ浴もできるようにしたミストサウナ機能付き浴室暖房乾燥機(例えば、特許文献1参照)が提供されている。   In recent years, in a bathroom heater / dryer that is installed on the ceiling of a bathroom, etc. to heat the bathroom, dry the bathroom, ventilate the bathroom, or blow the bathroom, it is possible to make a mist sauna bath by spraying hot water into the mist. A bathroom heater / dryer with a mist sauna function (see, for example, Patent Document 1) is provided.

かかるミストサウナ機能付き浴室暖房乾燥機では、熱源機と接続して熱源機から供給される温水が循環する温水循環管路と、温水循環管路に配置された温風を発生するための温風用熱交換器と、温水循環管路に設けられたミスト加熱用管路と、浴室内にミストサウナ用の温水をミスト状に噴霧するミストノズルと、ミストノズルに上水を供給するミスト用給水管路と、ミスト用給水管路に配置されて給水を開閉する給水開閉弁と、ミスト加熱用管路を流れる温水でミスト用給水管路を流れる水を加熱するためにミスト加熱用管路とミスト用給水管路との間に設けられたミスト用熱交換器とを備えている。そして熱源機を運転して温水循環管路に温水を循環させた状態で給水開閉弁を開いてミスト用給水管路に水を供給すると、ミスト用熱交換器で熱交換することによりミスト用給水管路を流れる水を加熱してミストノズルから温水をミスト状に噴霧してミストサウナ浴ができるようになっている。
特開2003−334230号公報
In such a bathroom heater / dryer with a mist sauna function, a hot water circulation pipe connected to the heat source machine for circulating hot water supplied from the heat source machine and hot air for generating hot air arranged in the hot water circulation pipe Mist heating pipe provided in a hot water circulation pipe, a mist nozzle for spraying hot water for a mist sauna in the bathroom in a mist form, and water supply for mist supplying clean water to the mist nozzle A mist heating pipe for heating the water flowing through the mist water supply line with hot water flowing through the mist heating pipe, And a mist heat exchanger provided between the mist water supply pipe. When the heat source is operated and hot water is circulated through the hot water circulation line, the water supply on / off valve is opened and water is supplied to the mist water supply line. The water flowing through the pipe is heated, and hot water is sprayed in a mist form from a mist nozzle so that a mist sauna bath can be made.
JP 2003-334230 A

上記ミスト用熱交換器は液―液熱交換器であるが、この液―液熱交換器としてはプレート式熱交換器が使用される場合が多い。ところが、プレート式熱交換器ではプレートにより一次側(温水循環管路側)と、二次側(ミスト用給水管路側)とが区分されているだけであり、プレートの亀裂や腐食、蝋付け不良が発生した場合、一次側と二次側の間がリーク状態となり、次のような問題がある。
(1)ミスト用給水管路に水を供給する水道水圧が高い場合、水道水が温水循環管路に流れ込み、熱源機側から溢れる。つまり、熱源機の補給水のオーバーフロー状態となる。
(2)ミスト用給水管路に水を供給する水道水圧が低い場合、温水循環管路を流れる循環水が二次側に流れ込み、余り清潔でない水がミストとして噴霧されるおそれがあり、特に不凍液が循環水に混入されている場合、不凍液がミストとして噴霧されるという問題がある。
The mist heat exchanger is a liquid-liquid heat exchanger, and a plate heat exchanger is often used as the liquid-liquid heat exchanger. However, in the plate heat exchanger, the primary side (warm water circulation pipeline side) and the secondary side (mist water supply pipeline side) are only divided by the plate, and there is no cracking, corrosion, or poor brazing of the plate. When this occurs, there is a leak between the primary side and the secondary side, causing the following problems.
(1) When the tap water pressure for supplying water to the water supply pipe for mist is high, tap water flows into the hot water circulation pipe and overflows from the heat source machine side. That is, it becomes the overflow state of the makeup water of the heat source machine.
(2) When the tap water pressure for supplying water to the mist water supply line is low, the circulating water flowing through the hot water circulation line may flow into the secondary side, and there is a risk that unclean water will be sprayed as mist, especially antifreeze. Has a problem that the antifreeze is sprayed as mist.

本発明は上記の従来の問題点に鑑みて発明したものであって、ミスト用熱交換器での一次側と二次側との間のリークを検出することができ、リーク状態になっても熱源機側への給水のリークを早く止めたり、温水循環管路の循環水がミストとして噴霧されるのを防止したりできるミストサウナ装置を提供することを課題とするものである。   The present invention has been invented in view of the above-described conventional problems, and can detect a leak between a primary side and a secondary side in a heat exchanger for mist, It is an object of the present invention to provide a mist sauna device capable of quickly stopping leakage of water supply to the heat source machine side or preventing the circulating water in the hot water circulation pipe from being sprayed as mist.

上記課題を解決するために本発明のミストサウナ装置は、熱源機1と接続して熱源機1から供給される温水が循環する温水循環管路2と、浴室3内にミストサウナ用の温水をミスト状に噴霧するミストノズル4と、ミストノズル4に上水を供給するミスト用給水管路5と、ミスト用給水管路5のミストノズル4の手前に設けられるミスト開閉弁21a,21bと、ミスト用給水管路5に配置されて給水を開閉する給水開閉弁6と、温水循環管路2を流れる温水でミスト用給水管路5を流れる水を加熱するため温水循環管路2とミスト用給水管路5との間に設けられたミスト用熱交換器7とを備え、ミストサウナ運転に先立って、給水開閉弁6を閉じた状態で熱源機1から温水循環管路2に温水を流す温水循環運転を行い、ミスト用給水管路5のミスト用熱交換器7とミスト開閉弁21a,21bとの間の水の温度の監視を行い、ミスト用給水管路5の前記水の温度上昇が所定値以上認められることによりミスト用熱交換器7での温水循環管路2からミスト用給水管路5に流出するリークを検出したとき運転を停止する安全装置を備えたことを特徴とする。このように構成したことにより、ミスト用熱交換器7の一次側(温水循環管路2側)と二次側(ミスト用給水管路5側)との間でリークがあってもリークを検出して運転を停止でき、リーク状態になっても熱源機1側へのリークを早く止めたり、温水循環管路2の循環水がミストとして噴霧されるのを防止したりできる。この場合、一次側から二次側へのリークを容易に検出でき(温水循環管路2から温度の高い温水がミスト用給水管路5にリークするとミスト用給水管路5の水の温度が急激に上昇する)、このリークの検出にて運転を停止することにより温水循環管路2の循環水がミストとして噴霧されたりする弊害を防止できる。 In order to solve the above-described problems, the mist sauna apparatus of the present invention is connected to the heat source unit 1 and the hot water circulation pipe 2 through which the hot water supplied from the heat source unit 1 circulates, and hot water for the mist sauna in the bathroom 3. A mist nozzle 4 for spraying in the form of a mist, a mist water supply line 5 for supplying clean water to the mist nozzle 4, mist opening / closing valves 21a, 21b provided in front of the mist nozzle 4 in the mist water supply line 5, A water supply on / off valve 6 disposed in the mist water supply line 5 for opening and closing the water supply, and a hot water circulation line 2 and mist for heating water flowing in the mist water supply line 5 with hot water flowing in the hot water circulation line 2 A mist heat exchanger 7 provided between the water supply pipe 5 and the hot water flow from the heat source unit 1 to the hot water circulation pipe 2 with the water supply opening / closing valve 6 closed prior to the mist sauna operation. Perform hot water circulation operation, water supply line for mist 5 Mist heat exchanger 7 and the mist-off valve 21a, mist heat exchanger by have line monitoring of the temperature of the water, the temperature rise of the water mist water supply pipe 5 is found greater than a predetermined value between the 21b when the hot water circulation pipe 2 in vessel 7 has detected a leak flowing out to the mist water supply pipe 5, characterized by comprising a safety device to stop the operation. With this configuration, even if there is a leak between the primary side (hot water circulation pipeline 2 side) and the secondary side (mist water supply pipeline 5 side) of the heat exchanger 7 for mist, the leak is detected. Thus, the operation can be stopped, and even when a leak occurs, the leak to the heat source unit 1 side can be stopped quickly, or the circulating water in the hot water circulation pipe 2 can be prevented from being sprayed as mist. In this case, a leak from the primary side to the secondary side can be easily detected (if hot water having a high temperature leaks from the hot water circulation pipe 2 to the mist feed pipe 5, the temperature of the water in the mist feed pipe 5 suddenly increases. By stopping the operation upon detection of this leak, it is possible to prevent the adverse effect that the circulating water in the hot water circulation pipe 2 is sprayed as mist.

またミスト用熱交換器7より下流側でミスト用給水管路5からミスト用排水管路25を分岐すると共にミスト用排水管路25に排水開閉弁26を設け、給水開閉弁6及びミスト開閉弁21a,21bを閉じ且つ排水開閉弁26を開いた状態で、ミストサウナ運転に先立って温水循環運転を行って温水循環管路2の温水の温度が所定温度に上昇してからミスト用給水管路5のミスト用熱交換器7とミスト開閉弁21a,21bとの間の水の温度を監視し、ミスト用給水管路5の前記水の温度上昇が所定値以上認められたことによりミスト用熱交換器7での温水循環管路2からミスト用給水管路5に流出するリークを検出するようにしたことを特徴とする。この場合も、一次側から二次側へのリークを容易に検出でき、このリークの検出にて運転を停止することにより温水循環管路2の循環水がミストとして噴霧されたりする弊害を防止できる。またこの場合、排水開閉弁26が開かれ且つミスト開閉弁21a,21bが閉じられているためにリークがあってもミスト用排水管路25から排水されてミストノズル4から噴霧されることがないために温水循環管路2の循環水が噴霧される弊害を防止できる。 Also provided drainage on-off valve 26 to the mist drainage pipe 25 with branches a mist drainage pipe 25 from the mist water supply pipe 5 on the downstream side of the mist heat exchanger 7, water supply on-off valve 6 and the mist-off With the valves 21a and 21b closed and the drain opening / closing valve 26 opened, the hot water circulation operation is performed prior to the mist sauna operation, and the temperature of the hot water in the hot water circulation line 2 rises to a predetermined temperature, and then the mist water supply pipe mist heat exchanger 7 and the mist-off valve 21a of the road 5, to monitor the temperature of the water between the 21b, mist by the temperature increase of the water mist water supply conduit 5 was observed more than a predetermined value A leak that flows out from the hot water circulation pipe 2 in the heat exchanger 7 into the water supply pipe 5 for mist is detected. Also in this case, the leak from the primary side to the secondary side can be easily detected, and the adverse effect that the circulating water in the hot water circulation pipe 2 is sprayed as mist can be prevented by stopping the operation by detecting the leak. . In this case, since the drain on / off valve 26 is opened and the mist on / off valves 21a and 21b are closed, even if there is a leak, the drain is not drained from the mist drain pipe 25 and sprayed from the mist nozzle 4. Therefore, it is possible to prevent the harmful effect of the circulating water in the hot water circulation pipe 2 being sprayed.

熱源機1と接続して熱源機1から供給される温水が循環する温水循環管路2と、浴室3内にミストサウナ用の温水をミスト状に噴霧するミストノズル4と、ミストノズル4に上水を供給するミスト用給水管路5と、ミスト用給水管路5のミストノズル4の手前に設けられるミスト開閉弁21a,21bと、ミスト用給水管路5に配置されて給水を開閉する給水開閉弁6と、温水循環管路2を流れる温水でミスト用給水管路5を流れる水を加熱するため温水循環管路2とミスト用給水管路5との間に設けられたミスト用熱交換器7とを備え、熱源機1から温水循環管路2に温水を流す温水循環運転を行って温水循環管路2の温水の温度が所定温度以上に上昇してから給水開閉弁6を開いてミストサウナ運転を行ったとき、所定時間内にミスト用給水管路5のミスト用熱交換器7とミスト開閉弁21a,21bとの間の水の温度が所定値以上の温度にならないことにより、ミスト用熱交換器7でのミスト用給水管路5から温水循環管路2に流出するリークを検出し、リークを検出したとき運転を停止する安全装置を備えたことを特徴とする。この場合、二次側から一次側へのリークを容易に検出することができ(ミスト給水管路5から温度の低い水が温水循環管路2にリークすると温水循環管路2の温水の温度が下がってミスト用給水管路5の水の温度が上がらない)、このリークの検出にて運転を停止することによりミスト用給水管路5から温水循環管路2に水が流れ込んで熱源機1からオーバーフローするのを防止できる。 Connected to the heat source device 1, a hot water circulation pipe 2 through which hot water supplied from the heat source device 1 circulates, a mist nozzle 4 for spraying hot water for mist sauna in the bathroom 3, and a mist nozzle 4 Mist water supply line 5 for supplying water, mist opening / closing valves 21a and 21b provided in front of the mist nozzle 4 of the mist water supply line 5, and water supply disposed in the mist water supply line 5 for opening and closing the water supply Mist heat exchange provided between the hot water circulation line 2 and the mist water supply line 5 for heating the water flowing in the mist water supply line 5 with the on-off valve 6 and the hot water flowing in the hot water circulation line 2 A hot water circulation operation in which hot water is passed from the heat source device 1 to the hot water circulation line 2 and the temperature of the hot water in the hot water circulation line 2 rises to a predetermined temperature or higher, and the water supply opening / closing valve 6 is opened. When mist sauna operation is performed, for mist within a predetermined time Mist heat exchanger 7 and the mist-off valve 21a of the water lines 5, by the temperature of the water between the 21b does not become a temperature equal to or higher than the predetermined value, the mist water supply conduit 5 in the mist heat exchanger 7 It is characterized by a safety device that detects a leak that flows out to the hot water circulation pipe 2 and stops the operation when the leak is detected . In this case, a leak from the secondary side to the primary side can be easily detected (if water having a low temperature leaks from the water supply pipe 5 for mist to the hot water circulation pipe 2, the temperature of the hot water in the hot water circulation pipe 2 is detected. The temperature of the water in the mist water supply pipe 5 does not rise, and the operation is stopped by detecting this leak, so that the water flows from the mist water supply pipe 5 into the hot water circulation pipe 2 and the heat source machine 1 Can be prevented from overflowing.

本発明は叙述の如く構成されているので、ミスト用熱交換器の一次側と二次側との間でリークがあってもリークを検出して運転を停止でき、リーク状態になっても熱源機側へのリークを早く止めたり、温水循環管路の循環水がミストとして噴霧されるのを防止したりできるという効果がある。   Since the present invention is configured as described, even if there is a leak between the primary side and the secondary side of the heat exchanger for mist, the leak can be detected and the operation can be stopped. There is an effect that the leak to the machine side can be stopped quickly and the circulating water in the hot water circulation pipe can be prevented from being sprayed as mist.

以下、本発明を添付図面に示す実施形態に基いて説明する。本実施の形態の例では本発明ミストサウナ装置をミストサウナ付き浴室暖房乾燥機(以下、単に浴室暖房乾燥機という)Aに用いた例により説明する。図1や図2に示す浴室暖房乾燥機Aは浴室3内の暖房をしたり、浴室3内の換気をしたり、浴室3内に干した洗濯物を乾燥したり、浴室3内に送風したりする機能以外に、浴室3内に温水をミスト状に噴霧してミストサウナ浴を行える機能を有する。この浴室暖房乾燥機Aは浴室暖房乾燥機本体10と浴室暖房乾燥機本体10の下面に装着したグリル板11にて主体が構成されている。浴室暖房乾燥機本体10は天井裏に配置してあり、吊り金具12等にて天井スラブ等に吊り支持してあり、浴室暖房乾燥機本体10の下面を天井板13の開口に臨ませてある。天井板13の下から開口を覆うようにグリル板11が配置され、グリル板11が浴室暖房乾燥機本体10の下面側に取り付けられている。このようにすることで浴室暖房乾燥機本体10の周縁の下面とグリル板11の周縁との間に天井板13の開口の周縁を挟むようにグリル板11が取り付けられている。   Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. In the example of the present embodiment, an example in which the mist sauna apparatus of the present invention is used in a bathroom heating dryer with a mist sauna (hereinafter simply referred to as a bathroom heating dryer) A will be described. The bathroom heater / dryer A shown in FIG. 1 and FIG. 2 heats the bathroom 3, ventilates the bathroom 3, dries the laundry dried in the bathroom 3, and blows air into the bathroom 3. In addition to the function of performing a mist sauna bath, the bathroom 3 has a function of spraying hot water 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 10 and a grill plate 11 attached to the lower surface of the bathroom heating / drying machine main body 10. The bathroom heating / drying machine main body 10 is arranged behind the ceiling, is suspended and supported on a ceiling slab by a hanging metal fitting 12 or the like, and the lower surface of the bathroom heating / drying machine main body 10 faces the opening of the ceiling plate 13. . A grill plate 11 is disposed so as to cover the opening from below the ceiling plate 13, and the grill plate 11 is attached to the lower surface side of the bathroom heating / drying machine main body 10. By doing in this way, the grill board 11 is attached so that the peripheral edge of the opening of the ceiling board 13 may be pinched | interposed between the lower surface of the peripheral edge of the bathroom heating dryer main body 10, and the peripheral edge of the grill board 11.

浴室暖房乾燥機本体10内には温風用熱交換器14や送風機15を内装してある。この温風用熱交換器14は内部に温水を通すことで外部を流れる空気と熱交換するようになっている。またこの温風用熱交換器14は浴室暖房乾燥機本体10に配管した温水循環管路2の途中に配置してあり、温水循環管路2には給湯暖房機のような熱源機1から温水が供給されて温水が循環するようになっている。温水循環管路2の途中には温風用熱交換器14への温水の供給の開閉を行う熱動弁のような暖房用開閉弁27を設けてあり、また温水循環管路2の途中にはこの管路を流れる温水の温度を検出する暖房温水サーミスタTH2を配置してある。また上記送風機15には循環用ファン15aと換気用ファン15bとがある。浴室暖房乾燥機本体10の吹き出し口16と対応する位置には吹き出し口16を開閉する可動ルーバー17を回転自在に装着してある。グリル板11には浴室3内の空気を吸い込む吸い込み口18を設けてあり、この吸い込み口18の近傍には浴室3内の温度を検出する浴室温度サーミスタTH3を配置してある。浴室暖房乾燥機Aは浴室3の壁面に設けた操作器19で操作できるようになっている。   A hot air heat exchanger 14 and a blower 15 are provided inside the bathroom heater / dryer body 10. This hot air heat exchanger 14 exchanges heat with air flowing outside by passing hot water through the inside. The hot air heat exchanger 14 is arranged in the middle of the hot water circulation pipe 2 piped to the bathroom heater / dryer main body 10, and the hot water circulation pipe 2 is supplied with hot water from the heat source machine 1 such as a hot water heater. Is supplied so that hot water circulates. A heating on / off valve 27 such as a thermal valve that opens and closes the supply of hot water to the hot air heat exchanger 14 is provided in the middle of the hot water circulation pipe 2, and in the middle of the hot water circulation pipe 2. Is provided with a heating hot water thermistor TH2 for detecting the temperature of the hot water flowing through this pipe line. The blower 15 includes a circulation fan 15a and a ventilation fan 15b. A movable louver 17 that opens and closes the air outlet 16 is rotatably mounted at a position corresponding to the air outlet 16 of the bathroom heater / dryer body 10. The grill plate 11 is provided with a suction port 18 for sucking air in the bathroom 3, and a bathroom temperature thermistor TH 3 for detecting the temperature in the bathroom 3 is arranged in the vicinity of the suction port 18. The bathroom heater / dryer A can be operated by an operating device 19 provided on the wall surface of the bathroom 3.

浴室3内を暖房する暖房運転をする場合、暖房用開閉弁27を開いて温風用熱交換器14に温水を供給し、換気用ファン15bを停止状態にすると共に循環用ファン15aを駆動し、可動ルーバー17を開状態にして吹き出し口16を開いておく。すると、浴室3内の空気が吸い込み口18から浴室暖房乾燥機本体10内に吸い込まれ、温風用熱交換器14で温水と熱交換することで加熱された温風が吹き出し口16から吹き出されるように空気が循環し、浴室3内が暖房される。   When the heating operation for heating the inside of the bathroom 3 is performed, the heating on-off valve 27 is opened to supply hot water to the hot air heat exchanger 14, the ventilation fan 15b is stopped, and the circulation fan 15a is driven. Then, the movable louver 17 is opened and the air outlet 16 is opened. Then, the air in the bathroom 3 is sucked into the bathroom heating / drying machine main body 10 from the suction port 18, and hot air heated by exchanging heat with warm water in the hot air heat exchanger 14 is blown out from the air outlet 16. As the air circulates, the inside of the bathroom 3 is heated.

浴室3内の換気をする換気運転する場合、暖房用開閉弁27を閉じて温風用熱交換器14への温水の供給を停止し、循環用ファン15aを停止すると共に換気用ファン15bを駆動し、可動ルーバー17を閉状態にして吹き出し口16を閉じておく。すると、浴室3内の空気が吸い込み口18から浴室暖房乾燥機本体10に吸い込まれ、排気ダクト30を介して外部に排気され、浴室3内の換気が行われる。   When the ventilation operation is performed to ventilate the bathroom 3, the heating on-off valve 27 is closed to stop the supply of hot water to the hot air heat exchanger 14, the circulation fan 15a is stopped, and the ventilation fan 15b is driven. Then, the movable louver 17 is closed and the outlet 16 is closed. Then, the air in the bathroom 3 is sucked into the bathroom heating / drying machine main body 10 from the suction port 18 and is exhausted to the outside through the exhaust duct 30, thereby ventilating the bathroom 3.

浴室3内を乾燥したり、浴室3内に干した洗濯物を乾燥したりする乾燥運転を行う場合、暖房用開閉弁27を開いて温風用熱交換器14に温水を供給し、循環用ファン15a及び換気用ファン15bを駆動し、可動ルーバー17を開状態にして吹き出し口16を開いておく。すると、浴室3内の空気が吸い込み口18から浴室暖房乾燥機本体10内に吸い込まれ、温風用熱交換器14で温水と熱交換することで加熱された温風が吹き出し口16から吹き出すように空気が循環し、一方、浴室暖房乾燥機本体10内に吸い込まれた空気の一部が排気ダクト30を介して外部に排気される。これにより浴室3内の湿度が下がり、浴室3内の乾燥や浴室3内に干した洗濯物の乾燥が行われる。   When performing a drying operation such as drying the inside of the bathroom 3 or drying the laundry dried in the bathroom 3, the heating on-off valve 27 is opened to supply hot water to the hot air heat exchanger 14 for circulation. The fan 15a and the ventilation fan 15b are driven, the movable louver 17 is opened, and the air outlet 16 is opened. Then, the air in the bathroom 3 is sucked into the bathroom heating / drying machine main body 10 from the suction port 18, and the hot air heated by exchanging heat with warm water in the hot air heat exchanger 14 is blown out from the blowout port 16. On the other hand, a part of the air sucked into the bathroom heating / drying machine main body 10 is exhausted to the outside through the exhaust duct 30. Thereby, the humidity in the bathroom 3 is lowered, and the drying in the bathroom 3 and the laundry dried in the bathroom 3 are performed.

浴室3内に涼風を送風する場合は、暖房用開閉弁27を閉じて温風用熱交換器14への温水の供給を停止し、換気用ファン15bを停止状態にすると共に循環用ファン15aを駆動し、可動ルーバー17を開状態にして吹き出し口16を開いておく。すると、浴室3内の空気が吸い込み口18から浴室暖房乾燥機本体10内に吸い込まれ、吹き出し口16からその空気が吹き出されるように空気が循環し、浴室3内に涼風の送風が行われる。   When blowing cool air into the bathroom 3, the heating on-off valve 27 is closed to stop the supply of hot water to the hot air heat exchanger 14, the ventilation fan 15b is stopped, and the circulation fan 15a is turned off. Driven, the movable louver 17 is opened and the outlet 16 is opened. Then, the air in the bathroom 3 is sucked into the bathroom heating / drying machine main body 10 from the suction port 18, the air circulates so that the air is blown out from the blowout port 16, and cool air is blown into the bathroom 3. .

また本発明ではこのような浴室暖房乾燥機Aにミストサウナの機能を持たせるためにミストサウナ部20を組み込んである。ミストサウナ部20のミストノズル4はグリル板11の部分に配置してあり、ミスト用給水管路5をミストノズル4に連通させてある。本例の場合、ミストノズル4としては2つのミストノズル4a,4bがあり、各ミストノズル4a,4bは例えば0.5リットル/min程度の流量で温水のミストを噴霧するようになっている。ミストノズル4a,4bの手前には電磁弁のようなミスト開閉弁21a,21bを設けてあり、ミスト開閉弁21a,21bの開閉にてミストノズル4aやミストノズル4bから選択的にミストが噴霧されるようになっている。2つのミストノズル4a,4bから温水のミストを噴霧するとミストサウナ強で運転でき、一方のミストノズル4aまたはミストノズル4bから温水のミストを噴霧するとミストサウナ弱で運転できるようになっている。本例の場合、ミストサウナ部20は浴室暖房乾燥機本体10の上に搭載してある。   Moreover, in this invention, in order to give such a bathroom heating dryer A the function of a mist sauna, the mist sauna part 20 is incorporated. The mist nozzle 4 of the mist sauna unit 20 is arranged in the grill plate 11, and the mist water supply pipe 5 is communicated with the mist nozzle 4. In the case of this example, the mist nozzle 4 includes two mist nozzles 4a and 4b, and each mist nozzle 4a and 4b sprays hot water mist at a flow rate of, for example, about 0.5 liter / min. Mist opening / closing valves 21a and 21b such as electromagnetic valves are provided in front of the mist nozzles 4a and 4b, and mist is selectively sprayed from the mist nozzle 4a and the mist nozzle 4b by opening and closing the mist opening and closing valves 21a and 21b. It has become so. When the mist of hot water is sprayed from the two mist nozzles 4a and 4b, it can be operated with a strong mist sauna, and when the mist of hot water is sprayed from one mist nozzle 4a or the mist nozzle 4b, it can be operated with a weak mist sauna. In the case of this example, the mist sauna unit 20 is mounted on the bathroom heater / dryer body 10.

ミスト用給水管路5には水道水のような上水が供給されるようになっており、入口側にストレーナ22、電磁弁のような給水開閉弁6を設けてある。上記温水循環管路2には温風用熱交換器14と並列になるようにミスト加熱用管路23を設けてあり、このミスト加熱用管路23の途中にはミスト加熱用管路23を流れる温水の流れを制御する比例弁24を設けてある。温水循環管路2のミスト加熱用管路23とミスト用給水管路5との間にはプレート式熱交換器など液−液熱交換器であるミスト用熱交換器7を配置してあり、ミスト加熱用管路23を流れる温水でミスト用給水管路5を流れるミスト用の水が加熱されるようになっている。このミスト用熱交換器7としてのプレート式熱交換器は例えば図4に示すように複数枚の波状をした伝熱プレート7aを内装することにより熱交換する流路を形成してある。ミスト用熱交換器7とミスト開閉弁21a,21bとの間でミスト用給水管路からミスト用排水管路25を分岐してあり、ミスト用給水管路5内の水をミスト用排水管路25から浴室3内や浴室3外に排出できるようになっている。ミスト用排水管路25には電磁弁のような排水開閉弁26と負圧を発生して排水が逆流するのを防止するバキュームブレーカ28を設けてある。またミスト用熱交換器7とミスト開閉弁21a,21bとの間でミスト用給水管路5にはミスト用給水管路5を流れる温水の温度を検出するミスト温度サーミスタTH1を配置してある。 The mist water supply pipe 5 is supplied with tap water such as tap water, and is provided with a strainer 22 and a water supply opening / closing valve 6 such as an electromagnetic valve on the inlet side. The hot water circulation pipe 2 is provided with a mist heating pipe 23 in parallel with the hot air heat exchanger 14, and the mist heating pipe 23 is provided in the middle of the mist heating pipe 23. A proportional valve 24 for controlling the flow of the flowing hot water is provided. A mist heat exchanger 7, which is a liquid-liquid heat exchanger such as a plate heat exchanger, is disposed between the mist heating pipe 23 and the mist feed pipe 5 of the hot water circulation pipe 2. The water for mist flowing through the water supply pipe for mist 5 is heated by the hot water flowing through the pipe for mist heating 23. The plate heat exchanger as the mist heat exchanger 7 has a flow path for heat exchange by, for example, incorporating a plurality of corrugated heat transfer plates 7a as shown in FIG. A mist drain pipe 25 is branched from the mist feed pipe 5 between the mist heat exchanger 7 and the mist open / close valves 21a, 21b, and water in the mist feed pipe 5 is drained from the mist drain pipe. It can be discharged from the road 25 into the bathroom 3 and out of the bathroom 3. The mist drain line 25 is provided with a vacuum breaker 28 that generates a negative pressure and prevents the drainage from flowing backward by a drainage on-off valve 26 such as an electromagnetic valve. Further, a mist temperature thermistor TH1 for detecting the temperature of hot water flowing through the mist water supply pipe 5 is disposed between the mist heat exchanger 7 and the mist open / close valves 21a and 21b.

ミストサウナ浴をする場合、給水開閉弁6を開いてミスト用給水管路5に給水されると共に比例弁24を開いてミスト加熱用管路23に温水が循環させられる。これによりミスト用熱交換器7にてミスト用給水管路5に流れる水が加熱されて温水がミスト用給水管路5を流れる状態になる。この状態でミスト開閉弁21a,21bが開かれると、温水のミストがミストノズル4a,4bから選択的に噴霧されてミストサウナ浴が行われる。このとき両方のミストノズル4a,4bからミストを噴霧するとミストサウナ強で運転することができてハードなミストサウナ浴ができ、また一方のミストノズル4aまたはミストノズル4bからミストを噴霧するとミストサウナ弱で運転できてソフトなミストサウナ浴ができる。またこのようにミストサウナ浴をするときは浴室暖房乾燥機Aが前述のように暖房運転されて浴室3内の温度が上げられ、快適にミストサウナ浴ができるようになっている。 When the mist sauna bath is used, the water supply opening / closing valve 6 is opened to supply water to the mist supply pipe 5 and the proportional valve 24 is opened to circulate hot water through the mist heating pipe 23. As a result, the water flowing through the mist feed pipe 5 is heated by the mist heat exchanger 7, and the hot water flows through the mist feed pipe 5. When the mist open / close valves 21a and 21b are opened in this state, hot water mist is selectively sprayed from the mist nozzles 4a and 4b to perform a mist sauna bath. At this time, if mist is sprayed from both mist nozzles 4a and 4b, the mist sauna can be operated with a strong mist sauna bath, and if mist is sprayed from one mist nozzle 4a or mist nozzle 4b, the mist sauna is weak. You can drive and have 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 3 so that the mist sauna bath can be comfortably performed.

図5は浴室暖房乾燥機Aの制御回路を示し、操作器19の操作にて制御部29で制御されて上記のように動作するようになっている。   FIG. 5 shows a control circuit of the bathroom heater / dryer A, which is controlled by the control unit 29 by the operation of the operation unit 19 and operates as described above.

ところで、ミストサウナを行うために温水循環管路2のミスト加熱用管路23とミスト用給水管路5との間にミスト用熱交換器7が設けてあるが、本発明ではミスト用熱交換器7の一次側と二次側との間のリークを検出する機能を持たせてあり、リークを検出した場合運転を終了するようになっている。このミスト用熱交換器7のリークの検査は下記のリーク検査シーケンスで行うが、このリーク検査シーケンスで検査を行うのは浴室暖房乾燥機Aの乾燥、暖房、ミストサウナ運転後、所定時間経過(例えば12時間)以降にミストサウナ運転をするときのみ行うようになっている。   Incidentally, a mist heat exchanger 7 is provided between the mist heating line 23 and the mist water supply line 5 in the hot water circulation line 2 in order to perform the mist sauna. In the present invention, heat exchange for mist is performed. A function of detecting a leak between the primary side and the secondary side of the vessel 7 is provided, and the operation is terminated when a leak is detected. The leak inspection of the heat exchanger 7 for mist is performed by the following leak inspection sequence. The inspection is performed by the leak inspection sequence after a predetermined time has elapsed after the drying, heating, and mist sauna operation of the bathroom heating dryer A ( For example, the operation is performed only when the mist sauna is operated after 12 hours.

リーク検査シーケンスの一例のシーケンス(1)について説明する。但し、下記のXは検査開始直前の温水循環管路2の水の温度、Yは検査開始直前のミスト用給水管路5の水の温度である。ミストサウナ運転開始指令(操作器19によるリモコン操作)により熱源機1をオンすると共に暖房用開閉弁27及び比例弁24を開いて暖房運転を行う。そして暖房温水サーミスタTH2にて温水循環管路2を循環する温水の温度を監視して温水循環管路2の温水の温度が所定温度(例えばX+15℃)まで上昇してきたことを起点としてミスト温度サーミスタTH1にてミスト用給水管路5の水の温度の監視を行い、万が一、所定時間内(例えば30秒)にミスト用給水管路5の水の温度上昇が、所定値(例えばY+15℃)以上認められた場合、リークがあると判断して異常を報知し、運転を終了するようになっている。つまり、リーク検査シーケンス開始時、給水開閉弁6が閉じているが、排水開閉弁26またはミスト開閉弁21a,21bが開かれている(本例の場合、排水開閉弁26だけが開放されている)のでミスト用熱交換器7の一次側と二次側との間にリークがあると、温水循環管路2の循環水がミスト用給水管路5に流れ込み、ミスト用給水管路5の水の温度が所定値(例えばY+15℃)以上になる。従って、ミスト用給水管路5の水の温度が所定値以上になるか否かでリークの有無を判定できる。具体的な一例としては、暖房温水サーミスタTH2の温度がX+15℃(例えば30℃→45℃)に到達した時から、30秒以内にミスト温度サーミスタTH1の温度がY+15℃(例えば30℃→45℃)に達した時、ミスト用熱交換器7のリークと判定する。なお、上記X+15℃の上限は60℃、下限は50℃とし、Y+15℃の上限は75℃、下限は40℃とする。また本例の場合、リーク検査シーケンス開始時に排水開閉弁26が開いているが、機器によってはミスト用排水管路25がない場合もあり、この場合ミスト開閉弁21a,21bを開くようになっている。 A sequence (1) as an example of the leak inspection sequence will be described. However, the following X is the temperature of the water in the hot water circulation line 2 immediately before the start of the inspection, and Y is the temperature of the water in the water supply line 5 for mist immediately before the start of the inspection. The heat source apparatus 1 is turned on by a mist sauna operation start command (remote control operation by the operation device 19), and the heating on / off valve 27 and the proportional valve 24 are opened to perform the heating operation. Then, the temperature of the hot water circulating in the hot water circulation pipe 2 is monitored by the heating hot water thermistor TH2, and the temperature of the hot water in the hot water circulation pipe 2 has risen to a predetermined temperature (for example, X + 15 ° C.) as a starting point. The temperature of the water in the mist water supply line 5 is monitored at TH1, and by any chance, the temperature rise of the water in the mist water supply line 5 exceeds a predetermined value (for example, Y + 15 ° C.) within a predetermined time (for example, 30 seconds). If it is recognized, it is determined that there is a leak, an abnormality is notified, and the operation is terminated. That is, at the start of the leak inspection sequence, the water supply opening / closing valve 6 is closed, but the drain opening / closing valve 26 or the mist opening / closing valves 21a, 21b are opened (in this example, only the drain opening / closing valve 26 is opened). Therefore, if there is a leak between the primary side and the secondary side of the heat exchanger 7 for mist, the circulating water in the hot water circulation line 2 flows into the water supply line 5 for mist and the water in the water supply line 5 for mist Becomes a predetermined value (for example, Y + 15 ° C.) or more. Therefore, it is possible to determine whether or not there is a leak depending on whether or not the temperature of the water in the mist water supply pipeline 5 is equal to or higher than a predetermined value. As a specific example, when the temperature of the heating hot water thermistor TH2 reaches X + 15 ° C. (eg, 30 ° C. → 45 ° C.), the temperature of the mist temperature thermistor TH1 becomes Y + 15 ° C. (eg, 30 ° C. → 45 ° C.) within 30 seconds. ), It is determined that there is a leak in the heat exchanger 7 for mist. The upper limit of X + 15 ° C. is 60 ° C., the lower limit is 50 ° C., the upper limit of Y + 15 ° C. is 75 ° C., and the lower limit is 40 ° C. In the case of this example, the drain opening / closing valve 26 is open at the start of the leak inspection sequence. However, depending on the device, the mist drain conduit 25 may not be provided. In this case, the mist opening / closing valves 21a, 21b are opened. Yes.

次に上記シーケンス(1)についてさらに具体的に図6、図7に示すタイムチャートにより説明する。図6はミスト用熱交換器7にリークがない場合の正常な時の運転開始シーケンスである。運転を停止しているときは暖房用開閉弁27が閉、循環用ファン15aがオフ、比例弁24が全閉、給水開閉弁6が閉、ミスト開閉弁21a,21bが閉、排水開閉弁26が閉であるが、ミストサウナの運転開始指令によりリーク検査シーケンスになると、熱源機1がオン、暖房用開閉弁27が開、循環用ファン15aがオン、比例弁24が全開、排水開閉弁26が開となり(給水開閉弁6とミスト開閉弁21a,21bは閉じたままである)、温水循環管路2に温水が循環する。リーク検査シーケンスに入って暖房温水サーミスタTH2で監視する温度が所定温度(X+15℃)になった時点から30秒後にミスト温度サーミスタTH1で監視する温度が所定温度(Y+15℃)になったか判定される。図6の場合、ミスト温度サーミスタTH1が所定温度(Y+15℃)以上を検出しないのでリークがないと判定され、初期排水シーケンスに移り、給水開閉弁6が開かれてミスト用給水管路5内に給水され、ミスト用給水管路5内に滞留している水がミスト用排水管路25から排水されてミスト用給水管路5が新しい水に入れ替えられる。初期排水シーケンスを開始してから30秒経過すると、ミスト噴霧シーケンスに移り、ミスト開閉弁21a,21bが開かれ、その後排水開閉弁26が閉じられる。ミスト開閉弁21a,21bが開放されることによりミストノズル4a,4bから温水のミストが噴霧される。このとき比例弁24を開閉制御することによりミストの温度が制御される。 Next, the sequence (1) will be described more specifically with reference to time charts shown in FIGS. FIG. 6 shows a normal operation start sequence when there is no leak in the mist heat exchanger 7. When the operation is stopped, the heating on-off valve 27 is closed, the circulation fan 15a is off, the proportional valve 24 is fully closed, the water supply on-off valve 6 is closed, the mist on-off valves 21a and 21b are closed, and the drain on-off valve 26 Is closed, but when a leak inspection sequence is initiated by a mist sauna operation start command, the heat source unit 1 is turned on, the heating on-off valve 27 is opened, the circulation fan 15a is on, the proportional valve 24 is fully opened, and the drain on-off valve 26 Becomes open (the water supply on / off valve 6 and the mist on / off valves 21a and 21b remain closed), and the hot water circulates in the hot water circulation conduit 2. It is determined whether the temperature monitored by the mist temperature thermistor TH1 has reached the predetermined temperature (Y + 15 ° C.) 30 seconds after the time when the temperature monitored by the heating hot water thermistor TH2 enters the predetermined temperature (X + 15 ° C.) after entering the leak inspection sequence. . In the case of FIG. 6, since the mist temperature thermistor TH1 does not detect a predetermined temperature (Y + 15 ° C.) or higher, it is determined that there is no leak, and the initial drainage sequence is started. The water that has been supplied and stays in the mist feed pipe 5 is drained from the mist drain pipe 25, and the mist feed pipe 5 is replaced with new water. When 30 seconds have elapsed from the start of the initial drainage sequence, the mist spraying sequence is started, the mist on / off valves 21a and 21b are opened, and then the drain on / off valve 26 is closed. When the mist open / close valves 21a and 21b are opened, mist of hot water is sprayed from the mist nozzles 4a and 4b. At this time, the temperature of the mist is controlled by opening / closing the proportional valve 24.

図7はミスト用熱交換器7にリークがある場合の異常な時の運転開始シーケンスである。上記のようにミストサウナの運転開始指令によりリーク検査シーケンスになると、熱源機1がオン、暖房用開閉弁27が開、循環用ファン15aがオン、比例弁24が全開、排水開閉弁26が開となり、温水循環管路2に温水が循環し、リーク検査シーケンスに入って暖房温水サーミスタTH2で監視する温度が所定温度(X+15℃)になった時点から30秒後にミスト温度サーミスタTH1で監視する温度が所定温度(Y+15℃)になったか判定される。図7の場合、ミスト温度サーミスタTH1が所定温度(Y+15℃)以上の温度を検出したのでリークがあると判定され、異常が報知されると共に暖房用開閉弁27が閉、循環ファン15aがオフ、比例弁24が全閉、排水開閉弁26が閉とされて運転が停止される。 FIG. 7 shows an operation start sequence when there is a leak in the mist heat exchanger 7. As described above, when the leak inspection sequence is started by the mist sauna operation start command, the heat source unit 1 is turned on, the heating on / off valve 27 is opened, the circulation fan 15a is on, the proportional valve 24 is fully opened, and the drain on / off valve 26 is opened. The temperature monitored by the mist temperature thermistor TH1 30 seconds after the temperature monitored by the heating hot water thermistor TH2 reaches the predetermined temperature (X + 15 ° C.) after the hot water circulates in the hot water circulation pipe 2 and enters the leak inspection sequence. Is determined to be a predetermined temperature (Y + 15 ° C.). For Figure 7, the mist temperature thermistor TH1 detects a predetermined temperature (Y + 15 ℃) temperatures above is determined that there is leakage, abnormal heating on-off valve 27 is closed while being informed, the circulation fans 15a is turned off The proportional valve 24 is fully closed and the drain on / off valve 26 is closed to stop the operation.

上記のようにしてミスト用熱交換器7の一次側と二次側とのリークが検出できるが、一次側と二次側のリークが微小の場合、上記シーケンス(1)では検出できない場合がある。
リークが微小の場合でも、ミスト用給水管路5への給水圧が高い時はミスト用熱交換器7で二次側から一次側への給水の大量のリークがあり、熱源機1のオーバーフロータンクから大量の水が排水される。
As described above, leakage between the primary side and the secondary side of the mist heat exchanger 7 can be detected. However, when the leakage on the primary side and the secondary side is very small, the sequence (1) may not be able to detect the leakage. .
Even if the leak is very small, when the water supply pressure to the mist water supply line 5 is high, there is a large amount of water supply from the secondary side to the primary side in the mist heat exchanger 7 and the overflow tank of the heat source unit 1 A large amount of water is drained from.

これを防止する対策として次のシーケンス(2)でリークを検出するようになっている。ミストサウナ運転を開始して温水循環管路2に温水を循環させる暖房運転をしてから給水開閉弁6を開いた時、給水開閉弁6を開いてから所定時間内にミスト温度サーミスタTH1で監視するミスト用給水管路5の水の温度が所定温度にならない場合、二次側から一次側にリークしていると判断してリークを検出することができる。つまり、ミスト用給水管路5への給水により、大量の水が熱源機1側に流れ込むため、熱源機1を最大運転しても温水循環管路2に循環する水の温度が低くなり、この結果ミスト温度サーミスタTH1で検出するミスト用給水管路5の水の温度が所定温度まで上昇しない。この場合、給水開閉弁6の開により暖房温水サーミスタTH2で検出する温水循環管路2の温水の温度も低い温度の検出となる。このようにしてミスト用熱交換器7のリークを検出したときも、異常の警報が報知されると共に運転が停止される。   In order to prevent this, a leak is detected in the next sequence (2). When the water supply on / off valve 6 is opened after the mist sauna operation is started and the hot water is circulated through the hot water circulation pipe 2, the mist temperature thermistor TH1 is monitored within a predetermined time after the water supply on / off valve 6 is opened. If the temperature of the water in the mist water supply pipeline 5 does not reach the predetermined temperature, it is determined that the water leaks from the secondary side to the primary side, and the leak can be detected. That is, since a large amount of water flows into the heat source unit 1 by supplying water to the mist water supply line 5, the temperature of the water circulating in the hot water circulation line 2 is lowered even when the heat source unit 1 is operated at maximum. As a result, the temperature of the water in the mist feed pipe 5 detected by the mist temperature thermistor TH1 does not rise to a predetermined temperature. In this case, the temperature of the hot water in the hot water circulation pipe line 2 detected by the heating hot water thermistor TH2 is also detected as a low temperature by opening the water supply opening / closing valve 6. Even when a leak in the heat exchanger 7 for mist is detected in this manner, an abnormal alarm is notified and the operation is stopped.

本発明の実施の形態の一例の浴室暖房乾燥機の内部の配管を説明する管路図である。It is a pipe line figure explaining piping inside a bathroom heating dryer of an example of an embodiment of the invention. 同上の浴室暖房乾燥機の断面図である。It is sectional drawing of a bathroom heating dryer same as the above. 同上の浴室暖房乾燥機を浴室に設置した状態の一部切欠斜視図である。It is a partially notched perspective view of the state which installed the bathroom heating dryer same as the above in the bathroom. 同上のプレート型熱交換器の内部構造を説明する断面図である。It is sectional drawing explaining the internal structure of a plate type heat exchanger same as the above. 同上の浴室暖房乾燥機の制御回路のブロック図である。It is a block diagram of the control circuit of a bathroom heating dryer same as the above. 同上の運転開始シーケンスのタイムチャートであり、リークのない正常な状態を示すものである。It is a time chart of a driving | operation start sequence same as the above, and shows the normal state without a leak. 同上の運転開始シーケンスのタイムチャートであり、リークのある異常な状態を示すものである。It is a time chart of a driving | operation start sequence same as the above, and shows the abnormal state with a leak.

符号の説明Explanation of symbols

1 熱源機
2 温水循環管路
3 浴室
4 ミストノズル
5 ミスト用給水管路
6 給水開閉弁
7 ミスト用熱交換器
21a,21b ミスト開閉弁
25 ミスト用排水管路
26 排水開閉弁
DESCRIPTION OF SYMBOLS 1 Heat source machine 2 Hot water circulation line 3 Bathroom 4 Mist nozzle 5 Water supply line for mist 6 Water supply on-off valve 7 Heat exchanger 21a, 21b Mist on-off valve 25 Mist drain pipe 26 Drain on-off valve

Claims (3)

熱源機と接続して熱源機から供給される温水が循環する温水循環管路と、浴室内にミストサウナ用の温水をミスト状に噴霧するミストノズルと、ミストノズルに上水を供給するミスト用給水管路と、ミスト用給水管路のミストノズルの手前に設けられるミスト開閉弁と、ミスト用給水管路に配置されて給水を開閉する給水開閉弁と、温水循環管路を流れる温水でミスト用給水管路を流れる水を加熱するため温水循環管路とミスト用給水管路との間に設けられたミスト用熱交換器とを備え、ミストサウナ運転に先立って、給水開閉弁を閉じた状態で熱源機から温水循環管路に温水を流す温水循環運転を行い、ミスト用給水管路のミスト用熱交換器とミスト開閉弁との間の水の温度の監視を行い、ミスト用給水管路の前記水の温度上昇が所定値以上認められることによりミスト用熱交換器での温水循環管路からミスト用給水管路に流出するリークを検出したとき運転を停止する安全装置を備えたことを特徴とするミストサウナ装置。 Connected to a heat source machine, a hot water circulation pipe through which hot water supplied from the heat source machine circulates, a mist nozzle that sprays hot water for mist sauna in the bathroom in a mist form, and for mist that supplies clean water to the mist nozzle Mist with hot water flowing through the hot water circulation pipe, a mist opening / closing valve provided in front of the mist nozzle of the water supply pipe for mist, a water supply opening / closing valve arranged in the water supply pipe for mist to open and close water supply A mist heat exchanger provided between the hot water circulation line and the mist water supply line to heat the water flowing through the water supply line, and the water supply on / off valve was closed prior to the mist sauna operation performed hot water circulation operation to flow the hot water from the heat source unit to the hot water circulation pipe in the state, it has rows monitoring of temperature of the water between the mist water supply pipe mist heat exchanger and mist off valve, water mist The temperature rise of the water in the pipeline is less than a predetermined value Upon detection of a leak which flows from the hot water circulation pipe in the mist heat exchanger to the mist water supply pipe by recognized mist sauna apparatus characterized by comprising a safety device to stop the operation. ミスト用熱交換器より下流側でミスト用給水管路からミスト用排水管路を分岐すると共にミスト用排水管路に排水開閉弁を設け、給水開閉弁及びミスト開閉弁を閉じ且つ排水開閉弁を開いた状態で、ミストサウナ運転に先立って温水循環運転を行って温水循環管路の温水の温度が所定温度に上昇してからミスト用給水管路のミスト用熱交換器とミスト開閉弁との間の水の温度を監視し、ミスト用給水管路の前記水の温度上昇が所定値以上認められたことによりミスト用熱交換器での温水循環管路からミスト用給水管路に流出するリークを検出するようにしたことを特徴とする請求項1記載のミストサウナ装置。 A mist drain pipe is branched from the mist feed pipe downstream from the mist heat exchanger, and a drain on / off valve is provided on the mist drain pipe, the feed on / off valve and the mist on / off valve are closed, and the drain on / off valve is closed. In the open state, the hot water circulation operation is performed prior to the mist sauna operation, and the temperature of the hot water in the hot water circulation line rises to a predetermined temperature, and then the mist heat exchanger in the mist water supply line and the mist open / close valve Leakage that flows out from the hot water circulation line to the mist water supply line in the heat exchanger for mist when the temperature rise of the water in the mist water supply line is observed over a predetermined value. claim 1 Symbol placement mist sauna apparatus is characterized in that to detect the. 熱源機と接続して熱源機から供給される温水が循環する温水循環管路と、浴室内にミストサウナ用の温水をミスト状に噴霧するミストノズルと、ミストノズルに上水を供給するミスト用給水管路と、ミスト用給水管路のミストノズルの手前に設けられるミスト開閉弁と、ミスト用給水管路に配置されて給水を開閉する給水開閉弁と、温水循環管路を流れる温水でミスト用給水管路を流れる水を加熱するため温水循環管路とミスト用給水管路との間に設けられたミスト用熱交換器とを備え、熱源機から温水循環管路に温水を流す温水循環運転を行って温水循環管路の温水の温度が所定温度以上に上昇してから給水開閉弁を開いてミストサウナ運転を行ったとき、所定時間内にミスト用給水管路のミスト用熱交換器とミスト開閉弁との間の水の温度が所定値以上の温度にならないことにより、ミスト用熱交換器でのミスト用給水管路から温水循環管路に流出するリークを検出し、リークを検出したとき運転を停止する安全装置を備えたことを特徴とするミストサウナ装置。 Connected to the heat source machine, the hot water circulation pipe through which the hot water supplied from the heat source machine circulates, the mist nozzle that sprays hot water for mist sauna in the bathroom in mist form, and for mist that supplies clean water to the mist nozzle Mist with hot water flowing through the hot water circulation line, a mist opening / closing valve provided in front of the mist nozzle of the water supply pipe line, the mist nozzle of the mist water supply line, a water supply opening / closing valve arranged in the water supply line for mist to open and close the water supply A mist heat exchanger provided between the hot water circulation line and the mist water supply line to heat the water flowing through the water supply line, and the hot water circulation for flowing hot water from the heat source device to the hot water circulation line When the temperature of hot water in the hot water circulation line rises above the specified temperature and the mist sauna is operated by opening the water supply valve, the mist heat exchanger in the mist supply line is operated within the specified time. Of water between the mist and the mist valve By but not to a temperature above a predetermined value, it detects the leakage flowing out of the mist supply water conduit in the mist heat exchanger to the hot water circulation pipe, with a safety device to stop the operation when it detects a leak features and to Rumi Sutosauna device that.
JP2004253086A 2004-08-31 2004-08-31 Mist sauna equipment Expired - Lifetime JP4612363B2 (en)

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JP4567574B2 (en) * 2005-11-04 2010-10-20 リンナイ株式会社 Mist sauna equipment
JP4709675B2 (en) * 2006-03-30 2011-06-22 大阪瓦斯株式会社 Mist sauna equipment
JP4876689B2 (en) * 2006-04-20 2012-02-15 マックス株式会社 Hot water jet air conditioning system
JP4697026B2 (en) * 2006-04-20 2011-06-08 マックス株式会社 Hot water jet air conditioning system
JP4905831B2 (en) * 2007-01-29 2012-03-28 株式会社ノーリツ Hot water jetting device
JP5241662B2 (en) * 2009-09-14 2013-07-17 リンナイ株式会社 Mist generator
JP5687841B2 (en) * 2010-03-18 2015-03-25 大阪瓦斯株式会社 Mist sauna equipment

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JPH09248325A (en) * 1996-03-18 1997-09-22 Toto Ltd Mist generator
JP2000193312A (en) * 1998-12-25 2000-07-14 Tokyo Gas Co Ltd Bath heater and bathroom heater
JP2003334230A (en) * 2002-05-21 2003-11-25 Harman Pro:Kk Mist device for bathing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09248325A (en) * 1996-03-18 1997-09-22 Toto Ltd Mist generator
JP2000193312A (en) * 1998-12-25 2000-07-14 Tokyo Gas Co Ltd Bath heater and bathroom heater
JP2003334230A (en) * 2002-05-21 2003-11-25 Harman Pro:Kk Mist device for bathing

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