JPH0318787Y2 - - Google Patents
Info
- Publication number
- JPH0318787Y2 JPH0318787Y2 JP14598884U JP14598884U JPH0318787Y2 JP H0318787 Y2 JPH0318787 Y2 JP H0318787Y2 JP 14598884 U JP14598884 U JP 14598884U JP 14598884 U JP14598884 U JP 14598884U JP H0318787 Y2 JPH0318787 Y2 JP H0318787Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- diaphragm
- balance
- gas
- response device
- 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
- Fluid-Driven Valves (AREA)
- Control Of Combustion (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は、家庭用又は業務用として用いられ
る瞬間ガス湯沸器などのガス湯沸器における水圧
応動装置のバランス弁に関する。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a balance valve of a hydraulic response device in a gas water heater such as an instantaneous gas water heater used for home or commercial use.
（従来の技術）
従来のこの種のバランス弁V1は、第３図に例
示したようにダイヤフラム１と一体に設けられて
いる。(Prior Art) A conventional balance valve V1 of this type is provided integrally with a diaphragm 1, as illustrated in FIG.
（考案が解決しようとする問題点）
水圧応動装置におけるバランス弁V1とその弁
シート８との隙間、すなわち、弁開口６は極めて
狭いため、上記従来のものでは出湯動作中の弁開
口６に砂、鉄さび等の異物が噛み込むと、出湯停
止後バランス弁V1、ダイヤフラム１及びガス弁
V2は元位置へ戻らず、したがつて、出湯を停止
してもガス弁V2が確実に閉止せず開放状態のま
まとなり、残火を惹起する。そこで、この考案は
出湯停止時においてバランス弁の状態とは無関係
にガス弁の閉止が確実に行いうる水圧応動装置の
バランス弁を提供するものである。(Problem to be solved by the invention) Since the gap between the balance valve V 1 and its valve seat 8 in the hydraulic response device, that is, the valve opening 6, is extremely narrow, in the conventional device, the valve opening 6 during hot water tapping operation is If foreign matter such as sand or iron rust gets caught, the balance valve V 1 , diaphragm 1 and gas valve
V 2 does not return to its original position, and therefore, even if hot water is stopped, the gas valve V 2 does not close reliably and remains open, causing embers. Therefore, the present invention provides a balance valve for a hydraulic response device that can reliably close the gas valve regardless of the state of the balance valve when hot water is stopped.
（問題点を解決するための手段）
この考案は、水圧応動装置におけるダイヤフラ
ム１の一次室２ａ側に固定したガイド軸３に弁体
４を摺動自由に嵌めつけ、該弁体４を押圧発条５
で弁開口６を閉止方向へ付勢して保持せしめたこ
とにより、上記問題点を解決したものである。(Means for Solving the Problems) This invention is a hydraulic response device in which a valve body 4 is slidably fitted onto a guide shaft 3 fixed to the primary chamber 2a side of a diaphragm 1, and the valve body 4 is pressed into a pressure spring. 5
The above problem is solved by urging the valve opening 6 in the closing direction and holding it there.
（作用）
しかして、出湯動作中にバランス弁V1とその
弁シート８間の弁開口６に砂とか鉄さび等の異物
ａが噛み込んでバランス弁V1の絞る方向への移
動を妨げても、出湯停止後ガス弁V2はダイヤフ
ラム１とともにバランス弁V1とは無関係に押圧
発条５に抗して移動し閉弁するのである。(Function) However, even if foreign matter a such as sand or iron rust gets caught in the valve opening 6 between the balance valve V 1 and its valve seat 8 during hot water tapping operation and prevents the balance valve V 1 from moving in the narrowing direction. After the tap water is stopped, the gas valve V2 moves together with the diaphragm 1 and closes against the pressure spring 5, independently of the balance valve V1.
（実施例）
以下この考案による水圧応動装置のバランス弁
の一実施例を図面に基づき説明すると、第１図及
び第２図において、１はダイヤフラムで、給水路
７の途中に設けたダイヤフラム室２に張設され、
該ダイヤフラム室２を一次室２ａと二次室２ｂに
区画している。V1はバランス弁で、熱交換器
（図示せず）への給水量を常時一定に自動制御す
るためのもので、上記ダイヤフラム１の一次室２
ａ側に固定したガイド軸３に弁体４を摺動自由に
嵌めつけ、該弁体４を押圧発条５により弁シート
８との弁開口６を絞る方向、すなわち、先端側
（図示右方）へ付勢した状態のもとに保持せしめ
た構成となつている。V2はガス弁で、ダイヤフ
ラム１の二次室２ｂ側に当接関連させた弁軸９に
固定され、ガス供給路１０に設けた弁室１１内に
その弁シート１２に対向して装備され、発条１３
により閉止方向に付勢されている。１４はダイヤ
フラム１の図示左動を助長するための発条で、上
記ガス弁V2の発条１３よりその弾発力は弱くな
つている。１５は一次室２ａより下流側の給水路
７に設けたベンチユリー部で、ダイヤフラム室２
の二次室２ｂと連通路１６を介して連通されてい
る。しかして、ダイヤフラム１の一次室２ａ側に
作用する給水圧の変動でバランス弁V1とガス弁
V2をダイヤフラム１を介して連動せしめること
で熱交換器への給水量のバランスの保持と、該給
水量に対する主バーナへのガス量の比例制御とが
自動的に行いうるものである。(Embodiment) An embodiment of the balance valve of the water pressure response device according to this invention will be described below based on the drawings. In FIGS. Stretched to
The diaphragm chamber 2 is divided into a primary chamber 2a and a secondary chamber 2b. V 1 is a balance valve, which is used to automatically control the amount of water supplied to the heat exchanger (not shown) to always be constant.
The valve body 4 is slidably fitted onto the guide shaft 3 fixed on the a side, and the valve body 4 is pressed in the direction in which the valve opening 6 with the valve seat 8 is narrowed by the pressing spring 5, that is, the tip side (right side in the figure). The structure is such that it is held in a biased state. V 2 is a gas valve, which is fixed to a valve shaft 9 that is in contact with the secondary chamber 2b side of the diaphragm 1, and is installed in a valve chamber 11 provided in a gas supply path 10 so as to face its valve seat 12. , Hatsujo 13
is biased in the closing direction. Reference numeral 14 denotes a spring for promoting leftward movement of the diaphragm 1, and its elastic force is weaker than that of the spring 13 of the gas valve V2 . Reference numeral 15 denotes a ventilate section provided in the water supply channel 7 downstream of the primary chamber 2a,
It is communicated with the secondary chamber 2b of 1 through a communication passage 16. Therefore, due to fluctuations in the water supply pressure acting on the primary chamber 2a side of the diaphragm 1, the balance valve V1 and the gas valve
By interlocking V2 through the diaphragm 1, it is possible to automatically maintain the balance of the amount of water supplied to the heat exchanger and to control the amount of gas supplied to the main burner in proportion to the amount of water supplied.
上記構成において、出湯動作中、図示左方へ移
動しているバランス弁V1とその弁シート８との
間の弁開口６に砂、鉄さび等の異物ａが噛み込ん
でバランス弁V1の図示右方への移動が阻害され
た場合でも、出湯を停止すると、ダイヤフラム１
及びガス弁V2はバランス弁V1とは無関係に発条
１３により図示右方へ押動するからガス弁V2は
確実に閉止され残火事故が発生するおそれはない
（第２図参照）。 In the above configuration, during the tapping operation, foreign matter a such as sand or iron rust gets caught in the valve opening 6 between the balance valve V 1 moving to the left in the figure and its valve seat 8, causing the balance valve V 1 to become stuck in the valve opening 6 between the balance valve V 1 and its valve seat 8 . Even if movement to the right is obstructed, if you stop dispensing water, diaphragm 1
Since the gas valve V 2 is pushed to the right in the drawing by the spring 13 regardless of the balance valve V 1 , the gas valve V 2 is reliably closed and there is no risk of an embers accident (see Fig. 2).
（考案の効果）
この考案は以上説明したように、バランス弁を
ダイヤフラムに対しスライド可能に設けたという
簡単な構造で、従来の隘路となつている残火事故
をなくして安全性が確保できる効果がある。(Effects of the invention) As explained above, this invention has a simple structure in which the balance valve is slidable relative to the diaphragm, and has the effect of ensuring safety by eliminating the lingering fire accidents that are the bottleneck of the conventional method. There is.
第１図及び第２図はこの考案による水圧応動装
置のバランス弁の一実施例を示した断面図、第３
図は従来例の断面図である。
１……ダイヤフラム、２ａ……ダイヤフラム室
２の一次室、３……ガイド軸、４……弁体、５…
…押圧発条、６……弁開口。
Figures 1 and 2 are cross-sectional views showing one embodiment of the balance valve of the hydraulic response device according to this invention;
The figure is a sectional view of a conventional example. DESCRIPTION OF SYMBOLS 1... Diaphragm, 2a... Primary chamber of diaphragm chamber 2, 3... Guide shaft, 4... Valve body, 5...
...Press spring, 6...Valve opening.
Claims (1)
２ａ側に固定したガイド軸３に弁体４を摺動自由
に嵌めつけ、該弁体４を押圧発条５で弁開口６を
閉止方向へ付勢して保持したことを特徴とする水
圧応動装置のバランス弁。 A valve body 4 is slidably fitted onto a guide shaft 3 fixed to the primary chamber 2a side of a diaphragm 1 in a hydraulic response device, and the valve body 4 is held by urging the valve opening 6 in the closing direction with a pressing spring 5. A hydraulic response device balance valve characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14598884U JPH0318787Y2 (en) | 1984-09-27 | 1984-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14598884U JPH0318787Y2 (en) | 1984-09-27 | 1984-09-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6159975U JPS6159975U (en) | 1986-04-22 |
| JPH0318787Y2 true JPH0318787Y2 (en) | 1991-04-19 |
Family
ID=30704232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14598884U Expired JPH0318787Y2 (en) | 1984-09-27 | 1984-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0318787Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003227578A (en) * | 2002-02-04 | 2003-08-15 | Rinnai Corp | Solenoid feed water valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2537300B2 (en) * | 1990-08-25 | 1996-09-25 | 株式会社日立製作所 | Pressure control mechanism, diaphragm type idle rotation control valve using this, pressure control valve and negative pressure servo motor |
-
1984
- 1984-09-27 JP JP14598884U patent/JPH0318787Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003227578A (en) * | 2002-02-04 | 2003-08-15 | Rinnai Corp | Solenoid feed water valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6159975U (en) | 1986-04-22 |
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