JPH0237226A - Reverse flow preventing device for bath burner with hot water feeder - Google Patents
Reverse flow preventing device for bath burner with hot water feederInfo
- Publication number
- JPH0237226A JPH0237226A JP63187200A JP18720088A JPH0237226A JP H0237226 A JPH0237226 A JP H0237226A JP 63187200 A JP63187200 A JP 63187200A JP 18720088 A JP18720088 A JP 18720088A JP H0237226 A JPH0237226 A JP H0237226A
- Authority
- JP
- Japan
- Prior art keywords
- water
- valve
- bath
- hot water
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 230000002265 prevention Effects 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 238000003303 reheating Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は給湯器付風呂釜の逆流防止装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a backflow prevention device for a bathtub with a water heater.
（従来の技術と課り
従来、雑水回路である浴槽と上水回路である給湯器とを
接続したものにおいては、逆流防止装置としてはバキュ
ームブレーカを用いていた。(Prior Art and Issues) Conventionally, in a system in which a bathtub, which is a miscellaneous water circuit, and a water heater, which is a clean water circuit, are connected, a vacuum breaker has been used as a backflow prevention device.
しかしながらこれでは取付位置の制約や器具内部の構造
の複雑化等の問題点があり、その対策として本出願人は
特願昭６２−３２９３８３号を提案した。これは水路に
逆止弁を直列に配し、該逆止弁間に通水圧がかかると閉
じ、通水圧がなくなると開いて水路を大気開放とする大
気開放弁を配している。しかしながら大気開放弁を開く
たびに該弁室内に残っている水を排出するので簾駄であ
ると共に、パイプシャフト内環器具の設置状況によって
は排水ができないことがある。However, there are problems with this, such as restrictions on the mounting position and the complexity of the internal structure of the device, and as a countermeasure to these problems, the present applicant proposed Japanese Patent Application No. 62-329383. This has check valves arranged in series in the water channel, and an atmosphere release valve that closes when water flow pressure is applied between the check valves and opens when the water flow pressure disappears, opening the waterway to the atmosphere. However, each time the atmosphere release valve is opened, the water remaining in the valve chamber is discharged, which is a problem, and depending on the installation condition of the pipe shaft inner ring device, drainage may not be possible.
（課題を解決するための手段）
本発明は上記従来の巷秦古寺毒埠欠点を改良したもので
、以下の構成を特徴とする。即ち、給湯器から風呂循環
回路に給湯する水路に複数の逆止弁を直列に配し、該逆
止弁間に通水圧がかかると閉じ、通水圧がなくなると開
いて水路を大気開放とする大気開放弁を配し、該大気開
放弁の空気口をフロートバルブを介して風呂循環回路の
ポンプの吸込側に接続している。(Means for Solving the Problems) The present invention is an improvement on the above-mentioned drawbacks of the conventional Hakuba Koji Dokubu, and is characterized by the following configuration. That is, a plurality of check valves are arranged in series in the waterway that supplies hot water from the water heater to the bath circulation circuit, and when water flow pressure is applied between the check valves, they close, and when the water flow pressure is removed, they open, opening the waterway to the atmosphere. An air release valve is provided, and the air port of the air release valve is connected to the suction side of the pump of the bath circulation circuit via a float valve.
（作用）
水路に通水されている時は大気開放弁は閉じているので
、水は水路を順方向に流れる。通水が止まると逆止弁は
閉じ大気開放弁が開くので、水路の一部が大気開放とさ
れ、縁切りがなされる。このとき大気開放弁室内の水は
空気口より排出され、フロートバルブ内にたまる。フロ
ーバルブ内に水がたまるとフロートが浮き、風呂循環回
路にポンプの吸引力によって吸収される。万−逆！Ｆ弁
が故障して浴槽水が逆流することがあっても、大気開放
弁よりフロートバルブを経て再び循環回路に戻され、上
流に流れることも器外にたれ流すこともない。(Operation) When water is flowing through the waterway, the atmosphere release valve is closed, so water flows in the forward direction through the waterway. When the water flow stops, the check valve closes and the atmosphere release valve opens, so that part of the waterway is opened to the atmosphere and the waterway is cut off. At this time, water in the atmosphere release valve chamber is discharged from the air port and accumulates in the float valve. When water accumulates inside the flow valve, the float floats and is absorbed by the pump's suction force into the bath circulation circuit. 10,000-on the contrary! Even if the F valve malfunctions and bath water backflows, it is returned to the circulation circuit via the atmosphere release valve and the float valve, so it will not flow upstream or leak outside the vessel.
（実施例） 本発明の一実施例を図に基づいて説明する。(Example) An embodiment of the present invention will be described based on the drawings.
（Ａ）は雑水回路の一部である浴槽、（Ｃ）は給湯器（
Ｂ）に接続されている上水回路で、両回路は直結されて
いる。（Ｄ）は逆流防止装置で、第１逆止弁（Ｅ）、第
２逆止弁（Ｆ）が直列に配され、その間に大気開放弁（
Ｇ）が配されている。（Ｈ）は大気開放弁（Ｇ）の空気
口に接続されたフロートバルブで、風呂循環回路（Ｊ）
のポンプ（１）の吸込側に接続している。(A) is a bathtub that is part of the miscellaneous water circuit; (C) is a water heater (
The water supply circuit connected to B), and both circuits are directly connected. (D) is a backflow prevention device in which a first check valve (E) and a second check valve (F) are arranged in series, with an atmosphere release valve (
G) is arranged. (H) is a float valve connected to the air port of the atmosphere release valve (G), and is connected to the bath circulation circuit (J).
It is connected to the suction side of the pump (1).
（りは第１逆止弁（Ｅ）の弁体で、バネ（４）により逆
通水方向に付勢されている。(I is the valve body of the first check valve (E), which is biased in the reverse water flow direction by a spring (4).
（２）は第２逆止弁（Ｆ）の弁体でバネ（６）により逆
通水方向に付勢されている。（３）は人気開放弁（Ｇ）
の弁体で、両逆止弁（Ｅ）（Ｆ）の間に形成された空気
室（８）内に配され、水路壁（９）に形成された空気口
（７）を開閉するものである。大気開放弁弁体（３）は
第１逆止弁弁体（１）が閉じる時に開くよう弁軸（１０
）に引掛る弁杆（１１）と、弁体く１）が開く時に弁体
（３）が閉じるよう両弁体を離反方向に付勢するバネ（
５）とが設けられている。(2) is a valve body of the second check valve (F), which is biased in the reverse water flow direction by a spring (6). (3) is a popular release valve (G)
This valve body is placed in the air chamber (8) formed between the two check valves (E) and (F), and opens and closes the air port (7) formed in the water channel wall (9). be. The atmosphere release valve body (3) is attached to the valve stem (10) so that it opens when the first check valve body (1) closes.
), and a spring (1) that biases both valve bodies in the direction of separation so that the valve body (3) closes when the valve body 1) opens.
5) is provided.
尚、大気開放弁（Ｇ）は逆止弁（Ｅ）又は（Ｆ）と独立
するものを用いてもよい。Note that the atmosphere release valve (G) may be independent of the check valve (E) or (F).
（１２）はフロートバルブ（Ｈ）のフロートで、弁口（
１３）を開閉する弁体（１４）が形成されている。（１
５）は上記弁口を通常時は閉となるようバネ（１６）で
付勢されている逆止弁体である。弁口（Ｉ３）は循環回
路（Ｊ）のポンプ（１）の吸込側に接続されている。(12) is the float of the float valve (H), and the valve port (
13) is formed with a valve body (14) that opens and closes it. (1
5) is a check valve body which is biased by a spring (16) so that the valve port is normally closed. The valve port (I3) is connected to the suction side of the pump (1) of the circulation circuit (J).
（１７）は循環回路（Ｊ）と上水回路（Ｃ）の接続部に
設けられた三方弁であり、給湯時は循環回路（Ｊ）と上
水回路（Ｃ）とを連通させ、風呂追焚時は遮断するもの
である。（１８）は風呂熱交換器である。（１９）はフ
ロートバルブ（Ｈ）の上部に設けられたオーバーフロー
口である。(17) is a three-way valve installed at the connection between the circulation circuit (J) and the water supply circuit (C), which connects the circulation circuit (J) and the water supply circuit (C) when hot water is being supplied. It is to be shut off when burning. (18) is a bath heat exchanger. (19) is an overflow port provided at the top of the float valve (H).
次に上記構成における作用について説明する。Next, the operation of the above configuration will be explained.
通常時、浴槽（Ａ）に給湯する時は通水圧により第１逆
止弁（Ｅ）の弁体（１）が押し開けられ、第２逆止弁（
Ｆ）も同様に開かれ水が流れる。このとき空気室（８）
内を流れる水により大気開放弁体（３）は空気口（７）
を閉じ、従って水は水路外には出ない。通水が止まれば
両逆止弁体（１）（２）はバネ（４）（６）によって水
路を閉じる。このとき弁軸（１０）に弁杆（１１）が引
掛り弁体（３）を開く。従って空気室（８）内には空気
口（７）より入った空気が水と、？換されて充満する。Normally, when hot water is supplied to the bathtub (A), the valve body (1) of the first check valve (E) is pushed open by the water pressure, and the second check valve (E) is pushed open.
F) is opened in the same way and water flows through it. At this time, air chamber (8)
The air opening valve body (3) opens to the air port (7) due to the water flowing inside.
is closed, so water does not come out of the channel. When the water flow stops, both check valve bodies (1) and (2) close the waterway by springs (4) and (6). At this time, the valve rod (11) is caught on the valve stem (10) to open the valve body (3). Therefore, the air entering the air chamber (8) through the air port (7) is mixed with water. is replaced and filled.
この時流れ出る水はフロートバルブ（１１）内に流入し
、たまる。The water flowing out at this time flows into the float valve (11) and accumulates therein.
たまった水がフロー）（１２）を浮かすと弁口（１３）
が開く。給湯！ （Ｂ）からの通水停止後に追焚を行う
とポンプ（１）が作動し、浴場の循環を行いながら風呂
熱交換器（１８）で加熱される。循環が始まるとその吸
込側は負圧になり、逆止弁体（Ｉ５）をバネ（１６）に
抗して開き、フロートバルブ（Ｈ）内にたまっている水
を吸い込む、水がなくなればフロートバルブ０１）は弁
口（１３）を閉じ、エアガミを防止する。追焚停止後は
逆止弁体（１５）が閉じて浴場の流出を防止する。Float the accumulated water (flow) (12) and the valve port (13)
opens. Hot water supply! When reheating is performed after the water flow from (B) is stopped, the pump (1) is activated and the bath is heated by the bath heat exchanger (18) while circulating the bath. When circulation starts, the suction side becomes negative pressure, the check valve body (I5) opens against the spring (16), and the water accumulated in the float valve (H) is sucked in. When the water runs out, the float Valve 01) closes the valve port (13) and prevents air jamming. After the reheating is stopped, the check valve body (15) closes to prevent the bath from flowing out.
浴槽（Ａ）が２階にある場合等雑木回路が正圧になる場
合、逆止弁（Ｆ）が故障していても雑水は空気口（７）
から水路外に排出されてヒ水倒へは流れ込まない。If the miscellaneous circuit has positive pressure, such as when the bathtub (A) is on the second floor, miscellaneous water will flow through the air vent (7) even if the check valve (F) is malfunctioning.
It is discharged out of the waterway and does not flow into the waterway.
又、水道の断水で−Ｌ水回路（Ｃ）が負圧になった場合
、逆止弁（Ｅ）が故障していても、空気を吸い込むだけ
で雑水は逆流しない。Furthermore, if the -L water circuit (C) becomes negative pressure due to a water outage, even if the check valve (E) is out of order, air will only be sucked in and miscellaneous water will not flow back.
そして雑水回路が強く負圧になった場合、逆止弁体（２
）が開かれると共に大気開放弁体（３）にも開方向の力
がかかるため空気口（７）より空気を吸い込み、上水と
は縁切りされる。If the miscellaneous water circuit becomes strongly negative pressure, the check valve body (2
) is opened, and a force in the opening direction is also applied to the atmosphere release valve body (3), so air is sucked in through the air port (7) and is separated from the water supply.
（発明の効果）
以上のように本発明は、水路に逆止弁を直列に配し、該
逆止弁間に大気開放弁を設けたので、通水時以外は逆止
弁間が大気開放となり完全に水路の縁切りが行なえるも
のである。しかも装置自体の構造はｆｉｔなものであり
、取付位置の制約も受けず、器具内部の構造も簡素化さ
れるものである。更に大気開放弁が開いた時に排出され
る水は、フロートバルブを経て循環回路に吸収されるの
で、水が無駄にならず、又器具が排水設備の不充分な場
所に設置されてもさしつかえない。(Effects of the Invention) As described above, the present invention arranges check valves in series in a waterway and provides an atmosphere release valve between the check valves, so that the space between the check valves is open to the atmosphere except when water is flowing. This makes it possible to completely cut off the edge of the waterway. Moreover, the structure of the device itself is a fit one, and there are no restrictions on the mounting position, and the internal structure of the device is also simplified. Furthermore, the water discharged when the atmosphere release valve opens is absorbed into the circulation circuit via the float valve, so no water is wasted, and there is no problem even if the appliance is installed in a place with insufficient drainage facilities. .
第１図は本発明の一実施例の全体図、第２図はその要部
断面図を示したものである。
（Ａ） ・・・浴槽
（Ｂ） ・ ・
（Ｃ） ・ ・
（Ｅ）（Ｆ）
（Ｇ） ・ ・
（Ｈ） ・ ・
（１＞ ・ ・
（Ｊ） ・ ・
（７） ・ ・
給湯器
Ｅ水回路
・・逆止弁
大気開放弁
フロートバルブ
ポンプ
風呂循環回路
空気口FIG. 1 is an overall view of an embodiment of the present invention, and FIG. 2 is a sectional view of a main part thereof. (A) Bathtub (B) ・ ・ (C) ・ ・ (E) (F) (G) ・ ・ (H) ・ ・ (1> ・ ・ (J) ・ ・ (7) ・ ・ Water heater E Water circuit: Check valve Atmospheric release valve Float valve Pump Bath circulation circuit Air port
Claims (1)
を直列に配し、該逆止弁間に通水圧がかかると閉じ、通
水圧がなくなると開いて水路を大気開放とする大気開放
弁を配し、該大気開放弁の空気口をフロートバルブを介
して風呂循環回路のポンプの吸込側に接続したことを特
徴とする給湯器付風呂釜の逆流防止装置。A plurality of check valves are arranged in series in the water channel that supplies hot water from the water heater to the bath circulation circuit, and when water flow pressure is applied between the check valves, they close, and when the water flow pressure disappears, they open to open the waterway to the atmosphere. A backflow prevention device for a bathtub with a water heater, characterized in that a valve is arranged, and an air port of the atmosphere release valve is connected to the suction side of a pump of a bath circulation circuit via a float valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63187200A JPH06100370B2 (en) | 1988-07-26 | 1988-07-26 | Backflow prevention device for bath kettle with water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63187200A JPH06100370B2 (en) | 1988-07-26 | 1988-07-26 | Backflow prevention device for bath kettle with water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0237226A true JPH0237226A (en) | 1990-02-07 |
| JPH06100370B2 JPH06100370B2 (en) | 1994-12-12 |
Family
ID=16201847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63187200A Expired - Fee Related JPH06100370B2 (en) | 1988-07-26 | 1988-07-26 | Backflow prevention device for bath kettle with water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06100370B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03251656A (en) * | 1990-02-27 | 1991-11-11 | Noritz Corp | Backflow preventing equipment |
| JPH0436551U (en) * | 1990-07-24 | 1992-03-26 | ||
| JPH04119294A (en) * | 1990-09-11 | 1992-04-20 | Rinnai Corp | Draining construction for closed vessel |
| JPH04169750A (en) * | 1990-10-31 | 1992-06-17 | Noritz Corp | Backflow preventing device |
| JPH0478461U (en) * | 1990-11-21 | 1992-07-08 | ||
| JPH04203753A (en) * | 1990-11-29 | 1992-07-24 | Rinnai Corp | Water feeding device |
| JPH0525251U (en) * | 1991-09-02 | 1993-04-02 | 株式会社ガスター | Bath water heater |
| JPH0755260A (en) * | 1993-08-06 | 1995-03-03 | Ntc Kogyo Kk | Drain recovery device in atmospheric relief device |
| JPH0783512A (en) * | 1993-06-29 | 1995-03-28 | Noritz Corp | Bath system |
| JPH07305896A (en) * | 1994-05-10 | 1995-11-21 | Rinnai Corp | Water feeding valve device |
-
1988
- 1988-07-26 JP JP63187200A patent/JPH06100370B2/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03251656A (en) * | 1990-02-27 | 1991-11-11 | Noritz Corp | Backflow preventing equipment |
| JPH0436551U (en) * | 1990-07-24 | 1992-03-26 | ||
| JPH0720513Y2 (en) * | 1990-07-24 | 1995-05-15 | 株式会社ノーリツ | Backflow prevention device |
| JPH04119294A (en) * | 1990-09-11 | 1992-04-20 | Rinnai Corp | Draining construction for closed vessel |
| JPH0555759B2 (en) * | 1990-09-11 | 1993-08-17 | Rinnai Kk | |
| JPH04169750A (en) * | 1990-10-31 | 1992-06-17 | Noritz Corp | Backflow preventing device |
| JPH0478461U (en) * | 1990-11-21 | 1992-07-08 | ||
| JPH04203753A (en) * | 1990-11-29 | 1992-07-24 | Rinnai Corp | Water feeding device |
| JPH0525251U (en) * | 1991-09-02 | 1993-04-02 | 株式会社ガスター | Bath water heater |
| JPH0783512A (en) * | 1993-06-29 | 1995-03-28 | Noritz Corp | Bath system |
| JPH0755260A (en) * | 1993-08-06 | 1995-03-03 | Ntc Kogyo Kk | Drain recovery device in atmospheric relief device |
| JPH07305896A (en) * | 1994-05-10 | 1995-11-21 | Rinnai Corp | Water feeding valve device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06100370B2 (en) | 1994-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |