JPH029367Y2 - - Google Patents
Info
- Publication number
- JPH029367Y2 JPH029367Y2 JP15501383U JP15501383U JPH029367Y2 JP H029367 Y2 JPH029367 Y2 JP H029367Y2 JP 15501383 U JP15501383 U JP 15501383U JP 15501383 U JP15501383 U JP 15501383U JP H029367 Y2 JPH029367 Y2 JP H029367Y2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- valve
- detection tube
- pressure
- valve stem
- 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
- 238000001514 detection method Methods 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Landscapes
- Control Of Fluid Pressure (AREA)
Description
【考案の詳細な説明】
本考案は、液体用減圧弁や背圧調整弁等の圧力
調整弁の改良に関するものである。[Detailed Description of the Invention] The present invention relates to improvements in pressure regulating valves such as liquid pressure reducing valves and back pressure regulating valves.
この種従来の圧力調整弁は、一般に調節圧力
（例えば二次側圧力）をダイアフラム室或はピス
トン室に導くための検出管が弁箱内に設けられて
おり、更に弁の作動時に振動やハンチングが発生
することを防止するために該検出管の一部（例え
ばダイアフラム室側の端部）を絞ることがよく行
われている。そのため、使用中に液中のごみ、
錆、水垢等がその絞り部に詰まつて弁の正常な作
動を損うことが度々あつた。 Conventional pressure regulating valves of this type generally have a detection tube inside the valve box to guide the regulating pressure (e.g., secondary pressure) to the diaphragm chamber or piston chamber, and also prevent vibration or hunting when the valve is operated. In order to prevent this from occurring, it is common practice to constrict a portion of the detection tube (for example, the end on the diaphragm chamber side). Therefore, dirt in the liquid during use,
Rust, limescale, etc. often clogged the throttle, impairing the valve's normal operation.
本考案は、上記問題点に鑑み、検出管の詰まり
が自動的に防止されて円滑な作動が長期間に亘り
保証され得るようにした圧力調整弁を提供せんと
するものである。 In view of the above-mentioned problems, the present invention aims to provide a pressure regulating valve that automatically prevents clogging of the detection tube and ensures smooth operation over a long period of time.
本考案による圧力調整弁は、検出管を弁棒に対
して傾斜して配設すると共に、検出管の絞り部の
内径より小径の先端部を有し且つ該先端部が該絞
り部に挿通された適度の可撓性を有する掃除具を
弁棒と一体運動する部材に固定して成るものであ
る。 The pressure regulating valve according to the present invention has a detection tube arranged at an angle with respect to the valve stem, and has a tip portion having a smaller diameter than the inner diameter of the constriction portion of the detection tube, and the tip portion is inserted into the constriction portion. A cleaning tool having appropriate flexibility is fixed to a member that moves integrally with the valve stem.
以下、図示した一実施例に基づき本考案を詳細
に説明すれば、１は内部に流入路１ａ及び流出路
１ｂを有し且つ頂部にダイアフラム室１ｃ及び空
気抜き孔１ｄを有する弁箱、２は流入路１ａと流
出路１ｂとの連通部分に螺着された環状の弁座、
３は弁箱１の底壁に螺着された下部蓋、４は流入
路１ａとダイヤフラム室１ｃとの連通部分に嵌挿
され且つボルト５により弁箱１の頂壁に固定され
ていて弁座２と同芯のシリンダ室４ａと該シリン
ダ室４ａと流入路１ａとを連通する連通孔４ｂと
を有しているライナ、６は下部蓋３及びライナ４
に上下摺動可能に支持された弁棒、７は弁棒６の
下側部分に固着された弁体押え、８は弁体押え７
の頂面に埋設されていて上面が弁座２の不端面に
密接し得るようになつている合成ゴム製の弁体、
９はシリンダ室４ａの内壁に嵌着されたＵパツキ
ン、１０はボルト５によりライナ４と共に弁箱１
の頂壁に固定されていてＵパツキン９の抜けを防
止しているパツキン押え、１１は弁棒６の上側部
分に嵌着され且つシリンダ室４ａに上下摺動可能
に嵌挿されていると共に上部外周面に溝１１ａが
形成されたダイアフラム押え、１２は空気抜き孔
１ｄに進退可能に螺着された空気抜き弁体、１３
はダイアフラム空１ｃの周縁部にボルト１４によ
り固着されたバネ保護筒、１５はその外周縁がダ
イアフラム室１ｃの周縁部とバネ保護筒１３の周
縁部との間に挾持固定され且つ内周縁がダイアフ
ラム押え１１の頂面に固定されていてダイアフラ
ム室１ｃとバネ保護筒１３の内部とを区分してい
るダイアフラム、１６は弁棒６の上側部分にバネ
保護筒１３側から固着されていてその下面とダイ
アフラム押え１１の頂面との間でダイアフラム１
５の内周縁を挾持固定しているダイアフラム受
け、１７はバネ保護筒１３の頂壁に上下方向に進
退可能に螺着された調節ネジ、１８は調節ネジ１
７の内部端に嵌装されたバネ受け、１９及び２０
はダイアフラム受け１６とバネ受け１８との間に
介装されていてダイアフラム受け１６を介してダ
イアフラム１５に下方移動習性を付与していると
共に調節ネジ１７の進退によりその荷重が任意に
調節される調節バネ、２１は調節ネジ１７を任意
位置にてロツクするためのロツクナツトである。
２２は弁棒６に対して傾斜する（例えば30゜程度）
ようにして弁箱１の頂壁に貫通固着されていて流
出路１ｂとダイアフラム室１ｃとを連通せしめて
いると共にダイアフラム室１ｃ側の端部に第３図
に示す如く絞り部２２ａが形成されている検出
管、２３は第４図及び第５図に示した如く検出管
２２の絞り部２２ａの内径より小径（例えば直径
１〜1.5mm程度）であり且つ検出管２２と平行に
なるように斜め下方に折曲せしめられた先端部２
３ａと環状の基部２３ｂとこれらの中間部２３ｃ
とから成つていて該先端部２３ａが絞り部２２ａ
に挿通され且つ基部２３ｂがダイアフラム押え１
１の溝１１ａに嵌着せしめられた非腐蝕性の適度
の可撓性を有する掃除具である。尚、掃除具２３
の先端部２３ａは弁棒６のストローク長よりも深
く検出管２２中に挿入されている。又、掃除具２
３は例えばステンレス鋼製の細い針金を成形加工
することにより形成される。 Hereinafter, the present invention will be explained in detail based on one embodiment shown in the drawings. 1 is a valve box having an inlet passage 1a and an outlet passage 1b inside, and a diaphragm chamber 1c and an air vent hole 1d at the top; 2 is an inlet valve box; an annular valve seat screwed onto the communication portion between the passage 1a and the outflow passage 1b;
3 is a lower lid screwed onto the bottom wall of the valve box 1; 4 is a valve seat that is fitted into the communication portion between the inflow passage 1a and the diaphragm chamber 1c and fixed to the top wall of the valve box 1 with bolts 5; 2, a liner having a cylinder chamber 4a concentric with the cylinder chamber 4a and a communication hole 4b communicating the cylinder chamber 4a and the inflow path 1a; 6 indicates the lower lid 3 and the liner 4;
7 is a valve body holder fixed to the lower part of the valve stem 6; 8 is a valve body holder 7;
a valve body made of synthetic rubber, which is embedded in the top surface of the valve seat 2 so that its upper surface can come into close contact with the unfinished surface of the valve seat 2;
Reference numeral 9 indicates a U-packet fitted to the inner wall of the cylinder chamber 4a, and reference numeral 10 indicates a U-packet fitted to the inner wall of the cylinder chamber 4a.
A packing retainer 11 is fixed to the top wall of the U-packet 9 to prevent the U-packet 9 from coming off, and is fitted onto the upper part of the valve stem 6 and is fitted into the cylinder chamber 4a so as to be vertically slidable. a diaphragm retainer having a groove 11a formed on its outer circumferential surface; 12 an air vent valve body screwed into the air vent hole 1d so that it can move forward and backward; 13;
15 is a spring protection tube fixed to the periphery of the diaphragm chamber 1c by bolts 14; its outer periphery is clamped and fixed between the periphery of the diaphragm chamber 1c and the spring protection tube 13; and its inner periphery is attached to the diaphragm. A diaphragm 16 is fixed to the top surface of the presser foot 11 and separates the diaphragm chamber 1c from the inside of the spring protection tube 13. The diaphragm 16 is fixed to the upper part of the valve stem 6 from the spring protection tube 13 side and has a diaphragm 16 attached to the bottom surface thereof. Diaphragm 1 between the top surface of diaphragm presser 11
5 is a diaphragm receiver which clamps and fixes the inner peripheral edge of 5; 17 is an adjustment screw screwed onto the top wall of the spring protection tube 13 so as to be able to move forward and backward in the vertical direction; 18 is an adjustment screw 1;
Spring receivers fitted to the inner ends of 7, 19 and 20
is interposed between the diaphragm receiver 16 and the spring receiver 18, and gives the diaphragm 15 the ability to move downward via the diaphragm receiver 16, and its load can be arbitrarily adjusted by advancing and retracting the adjustment screw 17. The spring 21 is a lock nut for locking the adjusting screw 17 at a desired position.
22 is inclined with respect to the valve stem 6 (for example, about 30 degrees)
In this way, it is fixedly fixed to the top wall of the valve box 1 to communicate the outflow passage 1b and the diaphragm chamber 1c, and a constricted portion 22a is formed at the end on the diaphragm chamber 1c side as shown in FIG. As shown in FIGS. 4 and 5, the detection tube 23 has a smaller diameter (for example, about 1 to 1.5 mm in diameter) than the inner diameter of the constricted portion 22a of the detection tube 22, and is angled so as to be parallel to the detection tube 22. Tip part 2 bent downward
3a, an annular base 23b, and an intermediate portion 23c between them.
The tip portion 23a is a constricted portion 22a.
and the base 23b is inserted into the diaphragm retainer 1.
This is a non-corrosive and moderately flexible cleaning tool that is fitted into the groove 11a of No. 1. In addition, cleaning tool 23
The tip end 23a of the valve rod 6 is inserted deeper into the detection tube 22 than the stroke length of the valve rod 6. Also, cleaning tools 2
3 is formed, for example, by molding a thin wire made of stainless steel.
本考案による圧力調整弁は上述の如く構成され
ているから、流体を流さない状態では、調節バネ
１９，２０の力や弁棒６回りの自重によりダイア
フラム押え１１の外周縁部がパツキン押え１０の
上面に接して弁体８が弁座２から離れた状態即ち
開弁状態となる。次に、流入路１ａに流体が送ら
れてくると、流体は弁座２を通つて流出路１ｂに
達するが、今流出路１ｂの下流が閉塞されている
とすると、徐々に上昇する流出圧力P2（二次側圧
力）は検出管２２を通つてダイアフラム室１ｃに
達しダイアフラム１５に上向きに作用し調節バネ
１９，２０の力や弁棒６回りの自重に打ち勝つて
ダイアフラム１５を上昇せしめるので、弁棒６が
上昇し弁体８が弁座２に着座して閉弁状態とな
る。次に、調節ネジ１７を前進せしめると、調節
バネ１９，２０が圧縮されてダイアフラム１５を
下降させるので、弁棒６が下降し弁体８が弁座２
から離されて流入路１ａ側の流体を流出路１ｂへ
通す。そして、流出圧力P2が検出管２２を通つ
てダイアフラム室１ｃに達しダイアフラム１５に
上向きに作用し調節バネ１９，２０の力と釣合
う。負荷（流量）の大小によつて流出圧力P2が
増減すると、ダイアフラム１５に作用する流出圧
力P2と調節バネ１９，２０の力が作用し合つて
弁体８の開度を調節し、結局ダイアフラム１５に
加わる流出圧力P2と調節バネ１９，２０の力と
が釣合うように弁体８が動作するので、流出圧力
P2は一定に保持される。かくして、本案圧力調
整弁の圧力調節動作に伴い弁棒６及びダイアフラ
ム押え１１が上下動するので、掃除具２３も一緒
に上下方向に動く。そして検出管２２が弁棒６に
対して傾斜して配設されているので、掃除具２３
の先端部２３ａは検出管２２の絞り部２２ａ内を
こじりながら上下動し、絞り部２２ａ内に付着す
るごみ、錆、水垢等を充分にかき落とす。尚、掃
除具２３の中間部２３ｃと先端部２３ａは適度の
可撓性を有しているので、検出管２２の絞り部２
２ａとその近傍部分の内部を縦方向にかきまわし
ながら上下動することになる。従つて、検出管２
２の詰まりが自動的に防止されるので、本案圧力
調整弁は円滑な作動が長期に亘つて保証される。
而も、そのためには上述の如き極めて簡単な構造
の掃除具２３を付加するだけで良いので、製造コ
ストの上昇はほとんどない。 Since the pressure regulating valve according to the present invention is constructed as described above, when no fluid is flowing, the outer peripheral edge of the diaphragm retainer 11 is pressed against the seal retainer 10 by the force of the regulating springs 19 and 20 and the weight around the valve stem 6. In contact with the upper surface, the valve body 8 is in a state away from the valve seat 2, that is, in an open state. Next, when fluid is sent to the inflow path 1a, the fluid passes through the valve seat 2 and reaches the outflow path 1b. However, assuming that the downstream side of the outflow path 1b is currently blocked, the outflow pressure gradually increases. P 2 (secondary side pressure) passes through the detection tube 22 to the diaphragm chamber 1c and acts upward on the diaphragm 15, overcoming the force of the adjustment springs 19 and 20 and the weight around the valve stem 6 and causing the diaphragm 15 to rise. , the valve stem 6 rises and the valve body 8 seats on the valve seat 2, resulting in the valve being in a closed state. Next, when the adjustment screw 17 is moved forward, the adjustment springs 19 and 20 are compressed and the diaphragm 15 is lowered, so that the valve rod 6 is lowered and the valve body 8 is moved toward the valve seat 2.
The fluid on the inflow path 1a side separated from the inflow path 1a is passed to the outflow path 1b. Then, the outflow pressure P 2 reaches the diaphragm chamber 1c through the detection tube 22, acts upward on the diaphragm 15, and balances the forces of the adjustment springs 19 and 20. When the outflow pressure P 2 increases or decreases depending on the magnitude of the load (flow rate), the outflow pressure P 2 acting on the diaphragm 15 and the forces of the adjustment springs 19 and 20 interact to adjust the opening degree of the valve body 8, and eventually Since the valve body 8 operates so that the outflow pressure P 2 applied to the diaphragm 15 and the force of the adjustment springs 19 and 20 are balanced, the outflow pressure
P 2 is held constant. Thus, as the valve stem 6 and the diaphragm retainer 11 move up and down with the pressure adjustment operation of the pressure adjustment valve of the present invention, the cleaning tool 23 also moves up and down together. Since the detection tube 22 is arranged at an angle with respect to the valve stem 6, the cleaning tool 23
The tip portion 23a moves up and down while prying inside the constricted portion 22a of the detection tube 22, and sufficiently scrapes off dust, rust, limescale, etc. adhering to the inside of the constricted portion 22a. In addition, since the intermediate part 23c and the tip part 23a of the cleaning tool 23 have appropriate flexibility, the constricted part 2 of the detection tube 22
It moves up and down while stirring the interior of 2a and its vicinity in the vertical direction. Therefore, the detection tube 2
Since the clogging of No. 2 is automatically prevented, smooth operation of the pressure regulating valve of the present invention is guaranteed for a long period of time.
However, for this purpose, it is only necessary to add the cleaning tool 23, which has an extremely simple structure as described above, so that there is almost no increase in manufacturing costs.
尚、上記実施例と異なり、掃除具２３の基部２
３ａを単なる棒状又は折曲した板状のものにして
ダイアフラム押え１１に差込み固定したり又はネ
ジ止めしたりしても良いことは言うまでも無い。
又、掃除具２３は弁棒６と一体運動するものなら
ば他の部材に固定しても良いことは言うまでも無
い。 Note that, unlike the above embodiment, the base 2 of the cleaning tool 23
Needless to say, 3a may be formed into a simple rod shape or a bent plate shape, and may be inserted into and fixed to the diaphragm retainer 11, or may be secured with screws.
It goes without saying that the cleaning tool 23 may be fixed to another member as long as it moves integrally with the valve stem 6.
上述の如く、本考案による圧力調整弁は、検出
管の詰まりが自動的に防止されて円滑な作動が長
期間に亘り保証され得ると共に、そのための製造
コストの上昇も殆どないという実用上極めて重要
な利点を有している。 As mentioned above, the pressure regulating valve according to the present invention is of extremely important practical importance in that it automatically prevents clogging of the detection tube, ensures smooth operation for a long period of time, and causes almost no increase in manufacturing costs. It has many advantages.
第１図は本考案による圧力調整弁の一実施例の
縦断面図、第２図は上記実施例の要部拡大断面
図、第３図は第２図−線に沿う断面図、第４
図は上記実施例の掃除具の平面図、第５図は第４
図−線に沿う断面図である。
１……弁箱、２……弁座、３……下部蓋、４…
…ライナ、５……ボルト、６……弁棒、７……弁
体押え、８……弁体、９……Ｕパツキン、１０…
…パツキン押え、１１……ダイアフラム押え、１
２……空気抜き弁体、１３……バネ保護筒、１４
……ボルト、１５……ダイアフラム、１６………
ダイアフラム受け、１７……調節ネジ、１８……
バネ受け、１９，２０……調節バネ、２１……ロ
ツクナツト、２２……検出管、２３……掃除具。
FIG. 1 is a longitudinal sectional view of an embodiment of the pressure regulating valve according to the present invention, FIG. 2 is an enlarged sectional view of the main part of the above embodiment, FIG. 3 is a sectional view taken along the line of FIG.
The figure is a plan view of the cleaning tool of the above embodiment, and FIG.
FIG. 1...Valve box, 2...Valve seat, 3...Lower cover, 4...
...liner, 5...bolt, 6...valve stem, 7...valve body holder, 8...valve body, 9...U seal, 10...
...Packing foot, 11...Diaphragm presser, 1
2...Air vent valve body, 13...Spring protection cylinder, 14
...Bolt, 15...Diaphragm, 16...
Diaphragm receiver, 17...adjustment screw, 18...
Spring receiver, 19, 20...adjustment spring, 21...lock nut, 22...detection tube, 23...cleaning tool.
Claims (1)
くための検出管を有し、該検出管の一部に絞り部
が設けられた圧力調整弁において、検出管を弁棒
に対して傾斜して配設すると共に、検出管の絞り
部の内径より小径の先端部を有し且つ該先端部が
該絞り部に挿通された適度の可撓性を有する掃除
具を弁棒と一体運動する部材に固定したことを特
徴とする圧力調整弁。 In a pressure regulating valve that has a detection tube for guiding the regulated pressure to a diaphragm chamber or a piston chamber, and in which a part of the detection tube is provided with a constriction part, the detection tube is arranged at an angle with respect to the valve stem. At the same time, a cleaning tool having a tip portion having a smaller diameter than the inner diameter of the constriction portion of the detection tube and having a moderate flexibility with the tip portion inserted through the constriction portion is fixed to a member that moves integrally with the valve stem. A pressure regulating valve characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15501383U JPS6065810U (en) | 1983-10-07 | 1983-10-07 | pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15501383U JPS6065810U (en) | 1983-10-07 | 1983-10-07 | pressure regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6065810U JPS6065810U (en) | 1985-05-10 |
| JPH029367Y2 true JPH029367Y2 (en) | 1990-03-08 |
Family
ID=30342473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15501383U Granted JPS6065810U (en) | 1983-10-07 | 1983-10-07 | pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6065810U (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4666434B2 (en) * | 2001-02-14 | 2011-04-06 | Ｔｏｔｏ株式会社 | Pressure reducing valve |
| JP4558616B2 (en) * | 2005-09-21 | 2010-10-06 | シーケーディ株式会社 | Valve body and pressure control valve of pressure control valve |
| US8336574B2 (en) * | 2007-04-20 | 2012-12-25 | Fisher Controls International Llc | Pressure averaging sense tube for gas regulator |
| AU2008242777B2 (en) * | 2007-04-20 | 2011-06-02 | Fisher Controls International Llc | Gas regulator flow boost cartridge |
| JP5004702B2 (en) * | 2007-07-19 | 2012-08-22 | 株式会社コガネイ | Pressure reducing valve |
| US9086702B2 (en) * | 2011-07-01 | 2015-07-21 | Emerson Process Management Regulator Technologies, Inc. | Pressure-balanced fluid pressure regulators |
| US9104208B2 (en) * | 2011-08-19 | 2015-08-11 | Emerson Process Management Regulator Technologies, Inc. | Regulator with bleed valve |
| CN105333184A (en) * | 2014-07-14 | 2016-02-17 | 费希尔久安输配设备(成都)有限公司 | Executor assembly and pressure regulator |
-
1983
- 1983-10-07 JP JP15501383U patent/JPS6065810U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6065810U (en) | 1985-05-10 |
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