JPS6015799Y2 - Intake valve device for piping in cold regions - Google Patents
Intake valve device for piping in cold regionsInfo
- Publication number
- JPS6015799Y2 JPS6015799Y2 JP148082U JP148082U JPS6015799Y2 JP S6015799 Y2 JPS6015799 Y2 JP S6015799Y2 JP 148082 U JP148082 U JP 148082U JP 148082 U JP148082 U JP 148082U JP S6015799 Y2 JPS6015799 Y2 JP S6015799Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- water
- chamber
- check valve
- intake valve
- 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.)
- Expired
Links
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Check Valves (AREA)
Description
【考案の詳細な説明】
本考案は寒冷地において使用する給水、給湯配管用吸気
弁装置に関するものである。[Detailed Description of the Invention] The present invention relates to an intake valve device for water supply and hot water supply piping used in cold regions.
従来寒冷地においては配管用の水の凍結防止のため、冬
期間水抜栓を用いて配管内の水を抜いているが、そのた
めには水抜栓の下流側配管を一時大気に開放してやる必
要があり一般的にカランの開放によりその部分から吸気
することがおこなわれている。Traditionally, in cold regions, drain valves are used to drain water from pipes during the winter to prevent water from freezing, but in order to do so, it is necessary to temporarily open the downstream pipes of the drain valve to the atmosphere. Generally, air is taken in from that part by opening the collar.
しかしカランを開放しても、住宅構造によっては、水抜
栓の下流側配管に水平配管が長い部分や、曲折の多い部
分が生じ、これらの部分の中でも特に上下方向に向けて
曲折する部分には水が残るのでそれが凍結し事故となる
場合がある。However, even if the door is opened, depending on the structure of the house, there may be long sections of horizontal piping or sections with many bends in the downstream piping of the drain valve. If water remains, it may freeze and cause an accident.
上記の欠点を解消しようとする一例として、配管中の適
当な個所に吸気弁を設けることが行われてきた。As an example of an attempt to eliminate the above-mentioned drawbacks, intake valves have been provided at appropriate locations in the piping.
水抜栓の給水状態で吸気弁は閉じられており、また水抜
栓の排水状態で吸気弁は開き、外部から吸気弁を通して
吸気をおこないカラン側と水抜栓側に配管内の水を排水
させることが考えられている。The intake valve is closed when the water drain valve is in the water supply state, and the intake valve is open when the water drain valve is in the drain state, allowing air to be taken in from the outside through the intake valve and water in the pipes drained to the drain valve side and the water drain valve side. It is considered.
しかし従来の吸気弁においては、ウォータハンマ等の急
激な圧力変動により吸気弁の弁体に水が接触することが
起り、それで吸気弁の弁体に接触した水が凍結して吸気
弁本来の機能を失うことがある。However, with conventional intake valves, water can come into contact with the valve element of the intake valve due to sudden pressure fluctuations caused by water hammer, etc., and the water that comes in contact with the valve element of the intake valve freezes, causing the intake valve to function normally. may be lost.
たとえば、水抜栓で排水した後吸気弁の弁体に接触して
いた水滴が凍結温度下で凍結し、種類によっては、吸気
弁の開栓状態で凍結したものは、水抜栓を給水状態にし
たとき吸気弁から水を噴出するような事故となり、また
吸気弁の開栓状態で凍結したものは、水抜栓を給水状態
からすぐまた排水状態にしたとき吸気することができず
配管内の水の凍結事故となっているのである。For example, water droplets that were in contact with the valve body of the intake valve after draining water through the drain valve may freeze under freezing temperatures, and depending on the type, if the water droplets freeze with the intake valve open, the water droplet may freeze when the intake valve is open. If an accident occurs where water spews out from the intake valve, or if the intake valve freezes while it is open, when the drain valve is immediately changed from the water supply state to the drain state, air cannot be taken in and the water in the pipes may leak out. This resulted in a freezing accident.
本考案は上記の課題を解決することを目的とするもので
あって、その目的を遠戚するための具体的構成は下記の
とおりである。The purpose of the present invention is to solve the above-mentioned problems, and the specific configuration for achieving this purpose is as follows.
添附図面に従って述べると、水抜栓の下流側配管中に設
置する寒冷地用吸気弁装置において、その吸気弁装置の
上部に、配管内の圧力が大気圧より小さい時吸気弁装置
を介して大気と連通し、その反対の時は遮断することの
できる逆止弁10を設け、その逆止弁10を内蔵した逆
止弁室11の下方に空気筒長室21を設け、その空気筒
長室21と前記逆止弁10を内蔵した逆止弁室11とを
連通させ、前記空気筒長室21の下方には空気室22を
設け、その空気室22と空気筒長室21とを連通し、前
記空気室22には水頭面を安定にするための抵抗板23
を収納し、その下方には浮弁16を収納した浮弁室17
を設け、その浮弁室17と前記空気室22とを連通させ
ることを特徴とした寒冷地用吸気弁装置である。According to the attached drawing, in an intake valve device for cold regions that is installed in the piping on the downstream side of the drain valve, there is a valve at the top of the intake valve device that connects to the atmosphere through the intake valve device when the pressure inside the piping is lower than atmospheric pressure. A check valve 10 is provided which can communicate with each other and shut off when the opposite occurs, and an empty cylinder long chamber 21 is provided below the check valve chamber 11 containing the check valve 10. and the check valve chamber 11 containing the check valve 10, an air chamber 22 is provided below the air cylinder long chamber 21, and the air chamber 22 and the air cylinder long chamber 21 are communicated, A resistance plate 23 is provided in the air chamber 22 to stabilize the water head surface.
A floating valve chamber 17 containing a floating valve 16 is located below it.
This is an intake valve device for cold regions characterized by providing a floating valve chamber 17 and communicating with the air chamber 22.
そこで本考案において、閉じられた一定の空間内の空気
の体積と圧力の積は一定であるという条件からも判るよ
うに、水圧変動による水頭の上昇で上部逆止弁室に水頭
面を到達させることがないように、ある一定の低い水頭
でも浮弁を閉じさせる構造と、また浮弁が凍結温度下で
浮弁台に氷着して作動不能になったとしても、空気室中
に蓄えられた空気により空気筒長室を満し、また空気室
に収納しである抵抗板により乱れて上昇する水頭面を、
安定した水頭面に変えさせて上部にある逆止弁に水滴を
1滴たりとも接触させないようにすることを特徴とする
ものである。Therefore, in this invention, as can be seen from the condition that the product of air volume and pressure in a certain closed space is constant, the water head surface reaches the upper check valve chamber due to the rise in water head due to water pressure fluctuations. In order to prevent this, the floating valve has a structure that closes even at a certain low water head, and even if the floating valve becomes inoperable due to ice forming on the floating valve base in freezing temperatures, the air will not be stored in the air chamber. The air fills the long air cylinder chamber, and the water head that rises due to turbulence is caused by the resistance plate stored in the air chamber.
It is characterized by changing the water head surface to a stable one and preventing even a single drop of water from coming into contact with the check valve located at the top.
以下本考案の実施例について図面に従って説明する。Embodiments of the present invention will be described below with reference to the drawings.
第1図は本考案を実施した配管状態の一例を示す略図で
あって、給水管1には排水口3を設けた水抜栓2を接続
し、その水抜栓2から下流側配管4,5,7.8を設け
、配管の末端にカラン9等を設けである。FIG. 1 is a schematic diagram showing an example of a piping state in which the present invention is implemented, in which a drain valve 2 provided with a drain port 3 is connected to a water supply pipe 1, and from the drain valve 2 downstream piping 4, 5, 7.8, and a collar 9 etc. is installed at the end of the piping.
本考案にかかる寒冷地用吸気弁装置6は、本実施例にお
いて配管4の頂点Aに設置されているのである。The intake valve device 6 for cold regions according to the present invention is installed at the apex A of the pipe 4 in this embodiment.
いま水抜栓2を結水状態から排水状態にすると、吸気弁
装置6から吸気されて、配管4内の水は水抜栓2の排水
口3を通って地中に排水され、配管5.7.8の水は大
気に開放されたカラン等から管外に排水される。Now, when the drain valve 2 is changed from the water-condensing state to the draining state, air is taken in from the intake valve device 6, and the water in the pipe 4 is drained into the ground through the drain port 3 of the water drain valve 2, and the water is drained into the ground through the pipe 5.7. The water in step 8 is drained outside the pipe through a drain or the like that is open to the atmosphere.
第2図は第1図に示した吸気弁装置6の一実施例を示す
縦断面図である。FIG. 2 is a longitudinal sectional view showing one embodiment of the intake valve device 6 shown in FIG. 1. FIG.
配管等に取付けるための取付部25は取付および取外し
が容易な構造であり、開口部20は配管内の水頭面に接
するものである。The mounting portion 25 for mounting on a pipe or the like has a structure that is easy to install and remove, and the opening 20 is in contact with the water head inside the pipe.
そこで水抜栓を排水状態から給水状態にすると、給水さ
れた水は管内の空気を排気させながら管内を満してゆく
。Therefore, when the drain valve is changed from the drain state to the water supply state, the supplied water fills the pipe while exhausting the air inside the pipe.
この時、吸気弁装置内を通過し排気されようとする空気
により、上部に配設された逆止弁10が逆止弁弁座本体
26の弁座面13に着座して吸気弁装置からの排気を止
める。At this time, due to the air passing through the intake valve device and about to be exhausted, the check valve 10 disposed at the top is seated on the valve seat surface 13 of the check valve seat main body 26, causing air to flow out from the intake valve device. Stop the exhaust.
モして逆止弁10には気密性をもたせるため0−リング
12が装着されている。Additionally, an O-ring 12 is attached to the check valve 10 to provide airtightness.
又逆止弁10は逆止弁室11に収納され、スプリング1
4とスプリング押え15によって吊下げられている。Also, the check valve 10 is housed in a check valve chamber 11, and the spring 1
4 and a spring presser 15.
吸気弁装置内は閉ざされた逆止弁により一定空間が形成
され、開口部20を通ってきた水頭面は圧力相当だけ上
昇してゆき、浮弁室17に達すると浮弁16が水頭面に
浮き、浮弁座本体27の浮弁座19に着座し、それ以上
吸気弁装置内への水の浸入を止めるように形成している
。Inside the intake valve device, a certain space is formed by the closed check valve, and the water head that has passed through the opening 20 rises by an amount equivalent to the pressure, and when it reaches the floating valve chamber 17, the floating valve 16 rises to the water head. The floating valve is seated on the floating valve seat 19 of the floating valve seat main body 27, and is formed to prevent further water from entering the intake valve device.
それで凍結温度下で浮弁16が弁台1Bに氷着し作動不
能になっても、空気室22に蓄えられた空気により水圧
分圧縮されながら空気筒長室21の途中で水頭面が停止
し、上部逆止弁に水頭は達しないものである。Therefore, even if the floating valve 16 freezes on the valve base 1B and becomes inoperable under freezing temperatures, the water head will stop halfway through the air cylinder long chamber 21 while being compressed by the water pressure by the air stored in the air chamber 22. , the water head does not reach the upper check valve.
また乱れて上昇する水頭面を空気室22に収納した抵抗
板23によって安定にさせる。Further, the turbulent and rising water head is stabilized by the resistance plate 23 housed in the air chamber 22.
次に水抜栓を給水状態から排水状態にし、カラン等を大
気に開放すると、管内の圧力は低下し水頭面が下がるの
で浮弁16が弁座19からはずれる。Next, when the drain valve is changed from the water supply state to the drain state and the drain valve is opened to the atmosphere, the pressure inside the pipe decreases and the water head drops, causing the floating valve 16 to disengage from the valve seat 19.
水抜栓の排水口から管内の水が排水されてゆくにしたが
い、管内圧力は大気圧より小さくなるため上部に配設さ
れた逆止弁10が弁座13から離れ吸気通路24を通っ
て大気が吸気され配管内の水は水抜栓の排水口とカラン
等の開口部を経て完全に排水される。As the water in the pipe is drained from the drain port of the water drain valve, the pressure in the pipe becomes lower than the atmospheric pressure, so the check valve 10 disposed at the top moves away from the valve seat 13 and passes through the intake passage 24 to release the atmosphere. The water that is drawn into the pipes is completely drained through the drain port of the drain valve and the opening of the drain valve.
また吸気弁装置の最上部位置には逆止弁10および浮弁
16の故障のための水の噴出を止める止水弁28があり
、それには止水を完全にするためのゴムバッキング29
を設けである。Also, at the top position of the intake valve device, there is a water stop valve 28 that stops water from spouting out in the event of failure of the check valve 10 and the floating valve 16, and it has a rubber backing 29 to completely stop water.
This is provided.
他の実施例としては、本考案の要旨を逸脱することなく
上部に配設された逆止弁及び浮弁の形状、材質を変えた
り空気筒長室の形状を変えたり、また空気室の容積や抵
抗板の形状及び枚数を変えるなど他に種々考えられる。As other embodiments, it is possible to change the shape and material of the check valve and floating valve disposed in the upper part, change the shape of the air cylinder long chamber, or change the volume of the air chamber without departing from the gist of the present invention. Various other methods can be considered, such as changing the shape and number of resistance plates.
本考案の吸気弁装置は、要は少い空気の流動で閉じられ
る逆止弁を上部にもち、下部に浮弁を収納することによ
り低水頭で浮弁を閉じさせ空気室に水頭面を浸入させな
い構造にあり、また浮弁が凍結温度下で弁台に氷着して
作動不能になっても、吸気弁装置内に蓄えられた空気と
、空気筒長室により、空気の体積と圧力の績が一定の条
件から、逆止弁体と水頭面の距離を大きくとることがで
き、逆止弁体に1滴の水滴をも接触させないようにする
ことができる。The intake valve device of this invention has a check valve at the top that can be closed with a small flow of air, and a floating valve is housed at the bottom to close the floating valve with a low water head and allow the water head surface to enter the air chamber. Furthermore, even if the floating valve becomes inoperable due to ice forming on the valve stand under freezing temperatures, the air volume and pressure are maintained by the air stored in the intake valve device and the air cylinder length chamber. Under the condition that the water flow is constant, it is possible to increase the distance between the check valve body and the water head surface, and it is possible to prevent even a single drop of water from coming into contact with the check valve body.
また空気室に収納された抵抗板により乱れる水頭面を安
定にさせることができる。In addition, the turbulent water head surface can be stabilized by the resistance plate housed in the air chamber.
以上述べたような種々の効果から低温雰囲気中において
も弁作動が確かであるから寒冷地において、吸気弁装置
として確実に弁作動し十分使用することのできる効果が
ある。Due to the various effects described above, the valve can operate reliably even in a low-temperature atmosphere, so it can be used as an intake valve device in a cold region with reliable valve operation.
第1図は吸気弁装置を設置した配管状態図で、第2図は
本考案の一実施例における縦断面図である。
1・・・・・・給水管、2・・・・・・水抜栓、3・・
・・・・排水口、4.5,7,8.・・・・・・ガス管
、9・・・・・・カラン、6・・・・・・吸気弁装置、
10・・・・・・逆止弁、11・・・・・・逆止弁室、
12・・・・・・01Jング、13・・・・・・逆止弁
座面、14・・・・・・スプリング、15・・・・・・
スプリング押え、16・・・・・・浮弁体、17・・・
・・・浮弁室、18・・・・・・弁台、19・・・・・
・浮弁座、20・・・・・・開口部、21・・・・・・
空気筒長室、22・・・・・・空気室、23・・・・・
・抵抗板、24・・・・・・吸気通路、25・・・・・
・取付部、26・・・・・・逆止弁座本体、27・・・
・・・浮弁座本体、28・・・・・・止水弁、29・・
・・・・ゴムバッキング。FIG. 1 is a state diagram of piping in which an intake valve device is installed, and FIG. 2 is a longitudinal sectional view of an embodiment of the present invention. 1... Water supply pipe, 2... Water drain valve, 3...
...Drain port, 4.5, 7, 8.・・・・・・Gas pipe, 9・・・・・・Crunch, 6・・・・Intake valve device,
10... Check valve, 11... Check valve chamber,
12...01J, 13...Check valve seat, 14...Spring, 15...
Spring retainer, 16...Floating valve body, 17...
...Floating valve chamber, 18...Valve stand, 19...
・Floating valve seat, 20...opening, 21...
Air cylinder length chamber, 22...Air chamber, 23...
・Resistance plate, 24...Intake passage, 25...
・Mounting part, 26...Check valve seat body, 27...
... Floating valve seat body, 28 ... Water stop valve, 29 ...
...Rubber backing.
Claims (1)
くなったとき大気と連通して吸気作用が起り、その逆に
、配管内が水で満されて水圧が大気圧より高くなったと
きには連通路を遮断する機能のある逆止弁を配設した逆
止弁室を設け、その逆止弁室の下方位置に緩衝体を内蔵
した空気室を設け、その空気室と前記逆止弁室との間に
は細首連通路を介在させ、前記空気室の下底開口部には
浮子弁支持用弁座を配設した寒冷地における配管用吸気
弁装置。When the pressure inside the pipe becomes lower than atmospheric pressure at the upper part of the intake valve body, it communicates with the atmosphere and an intake action occurs, and vice versa, when the pipe is filled with water and the water pressure becomes higher than atmospheric pressure. Sometimes, a check valve chamber is provided with a check valve that has the function of blocking the communication passage, and an air chamber with a built-in buffer is provided below the check valve chamber, and the air chamber and the check valve An intake valve device for piping in a cold region, in which a narrow neck communication passage is interposed between the air chamber and a valve seat for supporting a float valve at the bottom opening of the air chamber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP148082U JPS6015799Y2 (en) | 1982-01-11 | 1982-01-11 | Intake valve device for piping in cold regions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP148082U JPS6015799Y2 (en) | 1982-01-11 | 1982-01-11 | Intake valve device for piping in cold regions |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5859868U JPS5859868U (en) | 1983-04-22 |
JPS6015799Y2 true JPS6015799Y2 (en) | 1985-05-17 |
Family
ID=29799942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP148082U Expired JPS6015799Y2 (en) | 1982-01-11 | 1982-01-11 | Intake valve device for piping in cold regions |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6015799Y2 (en) |
-
1982
- 1982-01-11 JP JP148082U patent/JPS6015799Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5859868U (en) | 1983-04-22 |
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