JP2821699B2 - Cylinder valve with pressure reducing valve - Google Patents
Cylinder valve with pressure reducing valveInfo
- Publication number
- JP2821699B2 JP2821699B2 JP2011599A JP1159990A JP2821699B2 JP 2821699 B2 JP2821699 B2 JP 2821699B2 JP 2011599 A JP2011599 A JP 2011599A JP 1159990 A JP1159990 A JP 1159990A JP 2821699 B2 JP2821699 B2 JP 2821699B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- gas
- closing
- check
- pressure
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
- F16K1/304—Shut-off valves with additional means
- F16K1/305—Shut-off valves with additional means with valve member and actuator on the same side of the seat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
- F16K1/307—Additional means used in combination with the main valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/04—Methods for emptying or filling
- F17C2227/048—Methods for emptying or filling by maintaining residual pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Description
【発明の詳細な説明】 《産業上の利用分野》 本発明は、圧縮ガスや液化ガス等を収容するガスボン
ベに取り付けてガスの取出し及び充填に使用するボンベ
バルブのうちでも、減圧弁を付設することにより、ガス
取出し時には、ガスボンベ内の高圧ガスを減圧した状態
でガス出口穴から取り出すとともに、ガス充填時には、
そのガス出口穴からガスボンベにガスを充填できるよう
にした種類のボンベバルブに関し、ガス充填に要する時
間を短くするとともに閉止弁としての封止機能を良好に
保つための技術である。DETAILED DESCRIPTION OF THE INVENTION << Industrial application field >> The present invention provides a pressure reducing valve among cylinder valves used for taking out and filling gas by attaching to a gas cylinder containing compressed gas, liquefied gas and the like. Thereby, when taking out the gas, while taking out the high pressure gas in the gas cylinder from the gas outlet hole in a reduced pressure state,
This is a technique for shortening the time required for gas filling and maintaining a good sealing function as a shut-off valve with respect to a cylinder valve of a type in which gas can be filled into a gas cylinder from a gas outlet hole.
《従来の技術》 この種の減圧弁付きボンベバルブには、従来では、特
開平１−182700号公報に記載されたものがある。<< Prior Art >> As this type of cylinder valve with a pressure reducing valve, there is a conventional one described in Japanese Patent Application Laid-Open No. 1-182700.
これは、第５図に示すように、閉止弁８の閉止弁室９
・閉止弁体17・閉止弁座19と、減圧弁12の減圧弁室13・
減圧弁体26・減圧弁座28との各要素同士を一体に構成し
たものであり、閉止弁用開閉操作装置18のハンドル車23
の回転操作で、雄ネジ弁棒24を昇降ナット25に対して進
退させるようになっている。This corresponds to the closing valve chamber 9 of the closing valve 8 as shown in FIG.
A closing valve body 17, a closing valve seat 19, and a pressure reducing valve chamber 13 of the pressure reducing valve 12.
Each element of the pressure reducing valve body 26 and the pressure reducing valve seat 28 is integrally formed, and the handle wheel 23 of the closing valve opening / closing operation device 18 is provided.
The male screw valve rod 24 is moved forward and backward with respect to the lifting nut 25 by the rotation operation of.
即ち、ボンベバルブ１の閉弁時には、図示のように、
上死点に位置する昇降ナット25に対して雄ネジ弁棒24を
閉止弁座19側へ螺進させて、閉止弁体17を閉止弁座19に
閉止接当させてある。この閉弁状態から、ハンドル車23
を緩み側へ回転操作していくと、上死点位置の昇降ナッ
ト25に対して雄ネジ弁棒24が上昇していき、雄ネジ弁棒
24が上死点に到達して閉止弁体17が全開した後は、その
雄ネジ弁棒24に対して昇降ナット25が下降操作されて下
死点位置に受け止められ、ここでハンドル車23の操作が
停止される。これにより、ガス充填時に作動室31にガス
圧が作用しても、下死点位置の昇降ナット25で雄ネジ弁
棒24の下降が阻止され、閉止弁体17は閉止弁座19から離
間した状態に保たれる。That is, when the cylinder valve 1 is closed, as shown in the figure,
The male screw valve rod 24 is screwed toward the closing valve seat 19 with respect to the lifting nut 25 located at the top dead center, and the closing valve body 17 is closed and brought into contact with the closing valve seat 19. From this closed state, the steering wheel 23
The male screw valve stem 24 rises with respect to the lifting nut 25 at the top dead center position, and the male screw valve stem
After 24 reaches the top dead center and the closing valve body 17 is fully opened, the lifting nut 25 is lowered to the male screw valve stem 24 and received at the bottom dead center position. The operation is stopped. Thereby, even if gas pressure acts on the working chamber 31 during gas filling, the lowering of the male screw valve rod 24 is prevented by the lifting nut 25 at the bottom dead center position, and the closing valve body 17 is separated from the closing valve seat 19. Kept in state.
そして、ガスボンベからのガス取出し時には、ハンド
ル車23で昇降ナット25を上死点位置と下死点位置との間
の領域に位置させることにより、釣り合いバネ36の弾圧
力と作動室31のガス圧との差力で、ガス圧作動器27及び
雄ネジ弁棒24を介して、閉止弁体17からなる減圧弁体26
を開閉作動させるのである。When the gas is taken out from the gas cylinder, the lifting wheel 25 is positioned by the handle wheel 23 in a region between the top dead center position and the bottom dead center position, so that the elastic pressure of the balancing spring 36 and the gas pressure of the working chamber 31 are reduced. And a pressure reducing valve 26 comprising a closing valve 17 via a gas pressure actuator 27 and a male screw valve rod
Is opened and closed.
《発明が解決しようとする課題》 上記の従来技術のボンベバルブ１は、ガス充填時に減
圧弁体26を全開状態に保持できることにより、ガス充填
の時間が短くてすむ点で優れるが次の問題がある。<< Problems to be Solved by the Invention >> The above-described conventional cylinder valve 1 is excellent in that the pressure-reducing valve body 26 can be kept in a fully open state at the time of gas filling, so that the gas filling time can be shortened. is there.
即ち、減圧ガス取出し時においては、閉止弁体17の弁
面と閉止弁座19との間の狭い隙間で調圧作用がなされる
ので、その隙間をガスが超高速で流れている。閉止弁８
は、閉止弁体17の弁面や閉止弁座19が上記の超高速流れ
で次第に削り取られていくので、封止機能が早期に損な
われやすい。このため、ガスボンベの輸送中や保管中に
ガス漏れが起きるおそれがある。That is, when the decompressed gas is taken out, the pressure regulating action is performed in the narrow gap between the valve surface of the closing valve body 17 and the closing valve seat 19, so that the gas flows through the gap at an extremely high speed. Closing valve 8
Since the valve surface of the closing valve body 17 and the closing valve seat 19 are gradually scraped off by the above-described ultra-high-speed flow, the sealing function is easily damaged at an early stage. For this reason, gas leakage may occur during transportation or storage of the gas cylinder.
この問題は、弁面を合成樹脂等の弾性部材で構成した
場合には、傷みの進行がさらに早くなるので、著しい弊
害となって現れる。When the valve face is made of an elastic member such as a synthetic resin, this problem becomes a serious adverse effect since the progress of damage is further accelerated.
本発明は、ガス充填に要する時間を短くしながらも、
閉止弁の封止機能を良好に保つことを目的とする。The present invention, while reducing the time required for gas filling,
An object of the present invention is to maintain a good sealing function of a shutoff valve.
《課題を解決するための手段》 本発明は、上記の目的を達成するために、減圧弁付き
ボンベバルブを、例えば第１図から第３図に示すように
次のように構成した。<< Means for Solving the Problems >> In order to achieve the above object, in the present invention, a cylinder valve with a pressure reducing valve is configured as follows, for example, as shown in FIGS. 1 to 3.
請求項１の発明は、弁箱２内にガス入口穴６と閉止弁
８と減圧弁12とガス出口穴15とを順に設け、上記ガス出
口穴15と上記の閉止弁８の出口との間で、上記の減圧弁
12に対して並列にバイパス路40を設け、上記バイパス路
40に、上記の閉止弁８の出口から上記ガス出口穴15への
流れを阻止するバイパス用逆止弁41を設けたものであ
る。According to the first aspect of the present invention, a gas inlet hole 6, a shutoff valve 8, a pressure reducing valve 12, and a gas outlet hole 15 are provided in the valve box 2 in order, and the gas inlet hole 6, the shutoff valve 8, and the gas outlet hole 15 In the above pressure reducing valve
A bypass 40 is provided in parallel with 12, and the bypass
40 is provided with a bypass check valve 41 for preventing flow from the outlet of the shut-off valve 8 to the gas outlet hole 15.
また、請求項２の発明は、次のように構成したもので
ある。The invention according to claim 2 is configured as follows.
即ち、ボンベバルブ１の弁箱２内で、ガス入口穴６
に、閉止弁８の閉止弁室９と減圧弁12の減圧弁室13とを
順に介して、ガス出口穴15を連通させ、 上記の閉止弁８は、上記の閉止弁室９に挿入した閉止
弁体17を閉止弁用開閉操作装置18で閉止弁座19に開閉操
作可能に構成し、 上記の減圧弁12は、上記の減圧弁室13に挿入した減圧
弁体26をガス圧作動器27で減圧弁座28に開閉作動させる
ように構成し、 そのガス圧作動器27は、釣合いバネ36で開弁側へ弾圧
されるとともに作動室31のガス圧力で閉弁側へ押圧され
て、その釣合いバネ36とガス圧力との差力によって上記
の減圧弁体26を上記の減圧弁座28に開閉作動させるよう
に構成し、上記の作動室31を上記ガス出口穴15に連通さ
せて構成した、減圧弁付きボンベバルブにおいて、 上記の閉止弁室９の周囲のうちの、上記の閉止弁用開
閉操作装置18側の部分と上記ガス出口穴15側の部分から
外れる部分に、上記の減圧弁室13を形成し、 上記の閉止弁室９から上記の減圧弁室13を経て上記ガ
ス出口穴15に至るまでの間に、上記の減圧弁12に対して
並列にバイパス路40を設けて、そのバイパス路40にバイ
パス用逆止弁41を介装し、 上記バイパス用逆止弁41は、逆止弁室44に挿入した逆
止弁体46を逆止バネ47で逆止弁座45に向けて弾圧してな
り、 前記の閉止弁用開閉操作装置18で前記の閉止弁体17を
開き操作した状態では、 前記ガスボンベ４からのガス取り出し時には、そのガ
スボンベ４の内圧と上記の逆止バネ47の弾圧力との合力
によって上記の逆止弁体46を上記の逆止弁座45に閉止接
当させて、前記の閉止弁室９から上記のバイパス路40を
経て上記ガス出口穴15へのガス流出を阻止するのに対し
て、 上記ガスボンベ４へのガス充填時には、上記ガス出口
穴15の充填ガス圧によって上記の逆止バネ47の閉弁力に
抗して上記の逆止弁体46を上記の逆止弁座45から離間さ
せて、上記ガス出口穴15から上記のバイパス路40を経て
上記の閉止弁室９へのガス流入を許容したものである。That is, in the valve box 2 of the cylinder valve 1, the gas inlet hole 6
Then, the gas outlet hole 15 is communicated through the closing valve chamber 9 of the closing valve 8 and the pressure reducing valve chamber 13 of the pressure reducing valve 12 in order, and the closing valve 8 is closed when inserted into the closing valve chamber 9. The valve body 17 is configured to be capable of being opened and closed by a closing valve opening / closing operation device 18 on a closing valve seat 19, and the pressure reducing valve 12 is configured such that a pressure reducing valve body 26 inserted into the pressure reducing valve chamber 13 is connected to a gas pressure actuator 27. The gas pressure actuator 27 is resiliently pressed to the valve opening side by a balancing spring 36 and pressed to the valve closing side by the gas pressure of the working chamber 31, The pressure reducing valve body 26 is configured to be opened and closed by the pressure reducing valve seat 28 by the differential force between the balance spring 36 and the gas pressure, and the operating chamber 31 is configured to communicate with the gas outlet hole 15. A cylinder valve with a pressure reducing valve, a portion of the periphery of the above-mentioned closing valve chamber 9 on the side of the above-mentioned closing valve opening / closing operation device 18 and The pressure reducing valve chamber 13 is formed in a portion deviating from the portion on the gas outlet hole 15 side. Between the closing valve chamber 9 and the gas outlet hole 15 through the pressure reducing valve chamber 13, A bypass 40 is provided in parallel with the pressure reducing valve 12, and a bypass check valve 41 is interposed in the bypass 40, and the bypass check valve 41 is inserted into a check valve chamber 44. When the check valve body 46 is resiliently pressed by the check spring 47 toward the check valve seat 45, and the closing valve body 17 is opened by the closing valve opening / closing device 18, the gas cylinder 4 is closed. When the gas is taken out from the valve, the check valve body 46 is brought into close contact with the check valve seat 45 by the combined force of the internal pressure of the gas cylinder 4 and the elastic pressure of the check spring 47, thereby closing the gas. While gas is prevented from flowing from the valve chamber 9 to the gas outlet hole 15 through the bypass passage 40, the gas cylinder At the time of filling the gas into the valve 4, the check valve body 46 is separated from the check valve seat 45 against the valve closing force of the check spring 47 by the filling gas pressure of the gas outlet hole 15. The gas is allowed to flow from the gas outlet hole 15 to the closing valve chamber 9 via the bypass passage 40.
《作用》 本発明は、例えば第１図から第３図に示すように、次
のように作用する。請求項１の発明は、次のように作用
する。<< Operation >> The present invention operates as follows, for example, as shown in FIGS. The invention of claim 1 operates as follows.
ガスボンベ４の輸送中や保管中には、閉止弁８を閉じ
ておく。During transportation and storage of the gas cylinder 4, the closing valve 8 is closed.
ガス取り出し時には、上記の閉止弁８を開く。する
と、ガスボンベ４内の高圧ガスは、バイパス用逆止弁41
によってバイパス路40からの流出が阻止されて、減圧弁
12を通って減圧された状態でガス出口穴15から取り出さ
れる。At the time of gas removal, the above-mentioned closing valve 8 is opened. Then, the high-pressure gas in the gas cylinder 4 is discharged to the check valve 41 for bypass.
The outflow from the bypass 40 is prevented by the pressure reducing valve.
The gas is taken out from the gas outlet hole 15 in a state where the pressure is reduced through 12.
一方、ガス充填時には、閉止弁８を開いた状態で上記
ガス出口穴15から充填ガスを充填する。すると、その充
填ガスは、上記ガス出口穴15からバイパス路40に流入
し、バイパス用逆止弁41と閉止弁８とガス入口穴６とを
順に通ってガスボンベ４内へ充填される。On the other hand, when filling the gas, the filling gas is filled from the gas outlet hole 15 with the closing valve 8 opened. Then, the filling gas flows into the bypass passage 40 from the gas outlet hole 15 and passes through the bypass check valve 41, the shut-off valve 8, and the gas inlet hole 6, and is filled into the gas cylinder 4.
また、請求項２の発明は、基本的には上記の請求項１
の発明と同様に次のように作用する。The invention of claim 2 is basically based on claim 1 described above.
The same operation as in the invention of the first aspect is performed as follows.
ガスボンベ４の輸送中や保管中には、閉止弁用開閉操
作装置18で閉止弁体17を閉止弁座19に閉止接当させてお
く。While the gas cylinder 4 is being transported or stored, the closing valve body 17 is brought into close contact with the closing valve seat 19 by the closing valve opening / closing device 18.
ガス取り出し時には、開閉操作装置18で閉止弁体17を
全開にする。すると、ガスボンベ４内の高圧ガスが、ガ
ス入口穴６から閉止弁室９に流入し、そのガス圧でバイ
パス用逆止弁41の逆止弁体46を逆止弁座45に閉止接当さ
せてバイパス路40からのガス流出を阻止するとともに、
閉止弁室９から減圧弁座28・減圧弁室13を順に経て、減
圧された状態でガス出口穴15から取り出される。At the time of gas removal, the closing valve body 17 is fully opened by the opening / closing operation device 18. Then, the high-pressure gas in the gas cylinder 4 flows into the closing valve chamber 9 from the gas inlet hole 6, and the gas pressure causes the check valve body 46 of the bypass check valve 41 to close and contact the check valve seat 45. To prevent outflow of gas from the bypass 40,
The gas is taken out of the gas outlet hole 15 from the closing valve chamber 9 through the pressure reducing valve seat 28 and the pressure reducing valve chamber 13 in this order in a reduced pressure state.
一方、ガス充填時には、開閉操作装置18で閉止弁体17
を全開させた状態て、充填ガスをガス出口穴15から充填
する。すると、その充填ガスは、ガス出口穴15からバイ
パス路40に流入し、そのガス圧でバイパス弁41の逆止弁
体46を押し開いて逆止弁室44内に流入し、ここから閉止
弁室９・ガス入口穴６を順に経てガスボンベ４内に充填
される。On the other hand, at the time of gas charging, the closing valve
Is fully opened, and the filling gas is filled through the gas outlet hole 15. Then, the filling gas flows into the bypass passage 40 from the gas outlet hole 15, pushes and opens the check valve body 46 of the bypass valve 41 by the gas pressure, flows into the check valve chamber 44, and from there the closing valve The gas is filled into the gas cylinder 4 through the chamber 9 and the gas inlet hole 6 in order.
上述したように、請求項１と請求項２の各発明におい
て、ガスボンベに新たなガスを充填する際には、充填ガ
スは、減圧弁12をバイパスしてその狭い流路を通らなく
てすむので、流動抵抗が小さくてすみ、ガス充填に要す
る時間が短い。As described above, in each of the first and second aspects of the present invention, when a new gas is charged into the gas cylinder, the charged gas does not have to pass through the narrow flow path by bypassing the pressure reducing valve 12. The flow resistance can be small, and the time required for gas filling is short.
しかも、閉止弁８は、ガス取出し時やガス充填時に全
開状態で使用できるので、ガスの流れで弁面17aや閉止
弁座19が傷むことを防止できる。このため、、閉止弁８
の封止機能の寿命が長くなり、ガスボンベ４の輸送中や
保管中のガス漏れを長期間にわたって防止できる。In addition, since the closing valve 8 can be used in a fully opened state at the time of gas removal or gas filling, it is possible to prevent the valve face 17a and the closing valve seat 19 from being damaged by the flow of gas. Therefore, the closing valve 8
Of the gas cylinder 4 can be prevented, and gas leakage during transportation or storage of the gas cylinder 4 can be prevented for a long period of time.
なお、前記の請求項１又は請求項２の各構成におい
て、減圧弁12の減圧弁室13及びバイパス用逆止弁41の逆
止弁室44からガス出口穴15に至るまでの間に、残圧保持
用逆止弁50を介装した場合には、逆流ガスや雰囲気が閉
止弁室９へ侵入するのを防止できるので、ガスボンベ４
内が汚染されない。In each of the constructions of claim 1 or claim 2, the remaining space is from the pressure reducing valve chamber 13 of the pressure reducing valve 12 and the check valve chamber 44 of the check valve 41 for bypass to the gas outlet hole 15. When the pressure holding check valve 50 is interposed, it is possible to prevent the backflow gas and the atmosphere from entering the closing valve chamber 9.
The inside is not polluted.
また、請求項１から３の各構成において、 ボンベバルブ１を縦向きにした状態で見て、弁箱２の
下面にガス入口穴６を開口するとともに、弁箱２の途中
高さ部にガス出口穴15を横向きに開口し、弁箱２の上寄
り部に閉止弁室９を上向き開口状に形成し、弁箱２の途
中高さ部でガス出口穴15とは異なる部分に減圧弁12の減
圧弁室13及び作動室31を横向きに並べて形成し、閉止弁
室９の横外側部で減圧弁室13の上側部分にバイパス用逆
止弁41の逆止弁室44をガス出口穴15と同じ向きに形成し
た場合には、 ボンベバルブ１は、全体をコンパクトにまとめること
ができ、ガスボンベ４の保護キャップ内に容易に収容で
きる。In each of the first to third aspects, the gas inlet hole 6 is opened in the lower surface of the valve box 2 and the gas An outlet hole 15 is opened laterally, and a closing valve chamber 9 is formed in an upward opening shape at an upper part of the valve box 2. A pressure reducing valve 12 is provided at a part of the valve box 2 at a height different from the gas outlet hole 15. The pressure-reducing valve chamber 13 and the working chamber 31 are formed side by side, and the check valve chamber 44 of the bypass check valve 41 is formed in the upper part of the pressure-reducing valve chamber 13 on the lateral outer side of the closing valve chamber 9. When the cylinder valve 1 is formed in the same direction as the above, the cylinder valve 1 can be compactly assembled as a whole and can be easily accommodated in the protective cap of the gas cylinder 4.
《発明の効果》 本発明は、上記のように構成され作用することから次
の効果を奏する。<< Effects of the Invention >> The present invention has the following effects because it is configured and operates as described above.
ガスボンベに対するガス充填時において、充填ガス
は、減圧弁をバイパスしてその狭い流路を通らなくてす
むので、流動抵抗が小さくてすむ。このため、ガス充填
に要する時間が短くてすみ、充填作業を能率よく行え
る。At the time of gas filling of the gas cylinder, the filling gas does not have to flow through the narrow flow passage by bypassing the pressure reducing valve, so that the flow resistance is small. Therefore, the time required for gas filling can be shortened, and the filling operation can be performed efficiently.
しかも、閉止弁は、が日取出し時やガス充填時に全開
状態で使用できることから、ガスの流れで弁面や弁座が
傷むことを防止できる。その結果、閉止弁の封止機能の
寿命が長くなり、ガスボンベの輸送中や保管中のガス漏
れを長期間にわたって防止できる。In addition, since the closing valve can be used in a fully opened state at the time of taking out date or filling gas, it is possible to prevent the valve face and the valve seat from being damaged by the flow of gas. As a result, the life of the sealing function of the shut-off valve is prolonged, and gas leakage during transportation or storage of the gas cylinder can be prevented for a long time.
《実施例》 以下、本発明の一実施例を第１図から第４図で説明す
る。<< Embodiment >> An embodiment of the present invention will be described below with reference to FIGS.
第２図の系統図に示すように、ボンベバルブ１は、弁
箱２のガス入口穴６に、閉止弁８・減圧弁12・残圧保持
用逆止弁50を順に介してガス出口穴15を連通させてな
る。減圧弁12と並列に設けたバイパス路40にバイパス用
逆止弁41が配置される。さらに、ガス入口穴６と閉止弁
８との間から一次側安全弁64が分岐されるとともに、減
圧弁12及びバイパス用逆止弁41と残圧保持用逆止弁50と
の間から二次側安全弁73が分岐される。As shown in the system diagram of FIG. 2, the cylinder valve 1 is connected to the gas inlet hole 6 of the valve box 2 through the shut-off valve 8, the pressure reducing valve 12, and the residual pressure holding check valve 50 in this order. To communicate. A bypass check valve 41 is arranged in a bypass 40 provided in parallel with the pressure reducing valve 12. Further, a primary side safety valve 64 is branched from between the gas inlet hole 6 and the shutoff valve 8, and a secondary side is provided from between the pressure reducing valve 12, the bypass check valve 41 and the residual pressure holding check valve 50. The safety valve 73 is branched.
ガスボンベ４には、旧来の充填圧（150kg/cm2）の２
倍である300kg/cm2の高圧ガスが充填可能とされてい
る。The gas cylinder 4 has a conventional filling pressure (150 kg / cm 2 )
It can be filled with 300 kg / cm 2 high pressure gas, which is twice as high.
ガス取り出し時には、閉止弁８を開くことにより、ガ
スボンベ４内の高圧ガスが減圧弁12で所定圧にまで減圧
された後、残圧保持弁50を通ってガス出口穴15から取り
出される。When the gas is taken out, the high pressure gas in the gas cylinder 4 is reduced to a predetermined pressure by the pressure reducing valve 12 by opening the closing valve 8, and then is taken out from the gas outlet hole 15 through the residual pressure holding valve 50.
ガスの取り出しが進んでガスボンベ４の残圧が設定圧
にまで低下すると、残圧保持弁50が逆止バネ60（ここで
は図示せず）で自動的に閉じられる。これにより、それ
以上のガス取り出しを防止して、ガスボンベ４の残圧を
設定圧に保持し、空になったガスボンベ４内が雰囲気の
侵入で汚染されるのを防止する。When the removal of gas proceeds and the residual pressure of the gas cylinder 4 decreases to the set pressure, the residual pressure holding valve 50 is automatically closed by the check spring 60 (not shown here). This prevents the gas from being taken out further, keeps the residual pressure of the gas cylinder 4 at the set pressure, and prevents the empty gas cylinder 4 from being contaminated by the invasion of the atmosphere.
また、逆流ガスがガス出口穴15からボンベバルブ１に
侵入してきた場合には、残圧保持用逆止弁50でその逆流
を阻止し、ガスボンベ４内が逆流ガスで汚染されるのを
防止する。When the backflow gas enters the cylinder valve 1 through the gas outlet hole 15, the backflow is prevented by the check valve 50 for maintaining the residual pressure, and the inside of the gas cylinder 4 is prevented from being contaminated with the backflow gas. .
さらに、空になったガスボンベ４へのガス充填時に
は、ガス出口穴15にガス充填金具を接続し、残圧保持用
逆止弁50を手動操作又は充填ガス圧で強制的に開弁させ
るとともに、閉止弁８を開ける。すると、充填ガスが、
ガス出口穴15・バイパス用逆止弁41・閉止弁８を通って
ガス入口穴６からガスボンベ４内へ充填される。Further, when filling the empty gas cylinder 4 with gas, a gas filling fitting is connected to the gas outlet hole 15, and the residual pressure holding check valve 50 is manually opened or forcibly opened by filling gas pressure. Open the closing valve 8. Then, the filling gas is
The gas is filled into the gas cylinder 4 from the gas inlet hole 6 through the gas outlet hole 15, the bypass check valve 41, and the shut-off valve 8.
上記ボンベバルブ１の具体的な構造を、第３図と第１
図とで説明する。第３図は縦断面図で、第１図は第３図
のＩ−Ｉ線矢視断面図である。The specific structure of the cylinder valve 1 is shown in FIG.
This will be described with reference to the drawings. FIG. 3 is a longitudinal sectional view, and FIG. 1 is a sectional view taken along line II of FIG.
ボンベバルブ１は、弁箱２の下部に形成した脚ネジ部
３がガスボンベ４の首部５にネジ止め固定可能となって
いる。ガスボンベ４の輸送中や保管中には、その首部５
外周のネジ部5aに保護キャップ（図示せず）を取り付け
てボンベバルブ１を保護するようになっている。In the cylinder valve 1, a leg screw part 3 formed at a lower part of the valve box 2 can be screwed and fixed to a neck part 5 of a gas cylinder 4. During transportation and storage of the gas cylinder 4, its neck 5
A protective cap (not shown) is attached to the outer threaded portion 5a to protect the cylinder valve 1.
上記の脚ネジ部３の下面にガス入口穴６が開口される
とともに、弁箱２の途中高さ部にガス出口穴15が横向き
に開口される。閉止弁室９は、弁箱２の上寄り部に上向
き開口状に形成される。減圧弁12の減圧弁室13は、閉止
弁室９の周囲のうちの、ガス出口穴15とは異なる部分に
横向きに形成される。バイパス用逆止弁41の逆止弁室44
は、閉止弁室９の横外側かつ減圧弁室13の上側の部分
に、ガス出口穴15と同じ向きに形成される。A gas inlet hole 6 is opened in the lower surface of the leg screw portion 3, and a gas outlet hole 15 is opened laterally at an intermediate height of the valve box 2. The closing valve chamber 9 is formed in an upward opening shape at an upper portion of the valve box 2. The pressure reducing valve chamber 13 of the pressure reducing valve 12 is formed laterally in a portion around the closing valve chamber 9 different from the gas outlet hole 15. Check valve chamber 44 of bypass check valve 41
Is formed on the outer side of the closing valve chamber 9 and above the pressure reducing valve chamber 13 in the same direction as the gas outlet hole 15.
ガス入口穴６に、閉止弁８の閉止弁室９・連通路11・
減圧弁12の減圧弁室13・ガス出口路14を順に介して、ガ
ス出口穴15が連通される。また、閉止弁室９とガス出口
路14との間に減圧弁12のバイパス路40が設けられ、バイ
パス路40にバイパス用逆止弁41の逆止弁室44が介装され
る。さらに、ガス出口路14のうちのガス出口穴15寄りの
部分に、残圧保持弁50が介装される。In the gas inlet hole 6, the closing valve chamber 9 of the closing valve 8, the communication passage 11,
The gas outlet hole 15 communicates with the pressure reducing valve chamber 13 of the pressure reducing valve 12 and the gas outlet path 14 in this order. In addition, a bypass 40 of the pressure reducing valve 12 is provided between the closing valve chamber 9 and the gas outlet path 14, and a check valve chamber 44 of a check valve 41 for bypass is interposed in the bypass 40. Further, a residual pressure holding valve 50 is provided in a portion of the gas outlet passage 14 near the gas outlet hole 15.
閉止弁８は、閉止弁室９に上下昇降自在に挿入した閉
止弁体17を閉止弁用開閉操作装置18で閉止弁座19に開閉
操作可能に構成してなる。即ち、弁蓋21に支持した弁棒
22をハンドル車23で回転操作することにより、閉止弁室
９に螺合した閉止弁体17を昇降させて、合成樹脂製の弁
面17aを閉止弁座19に対して閉止接当又は離間させるよ
うになっている。The closing valve 8 is configured such that a closing valve body 17 inserted into the closing valve chamber 9 so as to be vertically movable can be opened and closed on a closing valve seat 19 by a closing valve opening / closing device 18. That is, the valve stem supported by the valve lid 21
The closing valve body 17 screwed to the closing valve chamber 9 is moved up and down by rotating the 22 with a handle wheel 23 to bring the synthetic resin valve surface 17a into or out of contact with the closing valve seat 19. It has become.
減圧弁12は、減圧弁室13に挿入した減圧弁体26をガス
圧作動器27で減圧弁座28に開閉作動させるように構成し
てなる。即ち、蓋ボルト30内に形成した作動室31に、ピ
ストン状のガス圧作動器27が第１封止具33と第２封止具
34で保密状に挿入される。ガス圧作動器27は、複数の皿
バネからなる釣合いバネ36で左側の開弁側へ弾圧され
る。作動室31は、ガス圧導入路37・減圧弁室13・ガス出
口路14を順に介してガス出口穴15に連通されており、作
動室31から両封止具33・34に作用するガス圧の差力でガ
ス圧作動器27を右側の閉弁側へ押圧するようになってい
る。そして、釣合いバネ36の開弁力とガス圧の閉弁力と
の差力で、減圧弁体26の弁面26aを減圧弁座28に対して
開閉作動させるのである。The pressure reducing valve 12 is configured such that a pressure reducing valve element 26 inserted into the pressure reducing valve chamber 13 is opened and closed by a gas pressure actuator 27 on a pressure reducing valve seat 28. That is, a piston-shaped gas pressure actuator 27 is provided in a working chamber 31 formed in a lid bolt 30 with a first sealing member 33 and a second sealing member.
Inserted in a hermetic form at 34. The gas pressure actuator 27 is resiliently pressed to the left valve opening side by a balancing spring 36 composed of a plurality of disc springs. The working chamber 31 is communicated with the gas outlet hole 15 through the gas pressure introducing passage 37, the pressure reducing valve chamber 13, and the gas outlet passage 14 in this order. The gas pressure actuator 27 is pressed to the right valve closing side by the differential force of. Then, the valve surface 26a of the pressure reducing valve body 26 is opened and closed with respect to the pressure reducing valve seat 28 by the differential force between the valve opening force of the balancing spring 36 and the valve closing force of the gas pressure.
バイパス用逆止弁41は、蓋ボルト43よりも内側に、逆
止弁室44と逆止弁座45とをガス出口路14とほぼ同軸上に
形成してなり、逆止弁室44に挿入した逆止弁体46を逆止
バネ47で逆止弁座45に向けて弾圧してある。The bypass check valve 41 has a check valve chamber 44 and a check valve seat 45 formed substantially coaxially with the gas outlet passage 14 inside the cover bolt 43 and inserted into the check valve chamber 44. The check valve body 46 thus pressed is pressed against the check valve seat 45 by a check spring 47.
残圧保持用逆止弁50は、次のように構成されている。 The residual pressure holding check valve 50 is configured as follows.
ガス出口穴15の奥部に、筒本体52とキャップ53とから
なるカセット筒51が、封止具54を介して保密状かつ着脱
自在にネジ止め固定される。カセット筒51内に逆止弁座
56と逆止弁室57が形成される。逆止弁室57に筒状の逆止
弁体58が封止具59で保密状に挿入され、その逆止弁体58
が逆止バネ60で逆止弁座56に向けて弾圧される。逆止弁
室57は、逆止弁体58内の出口圧導入孔61を介してガス出
口穴15に連通されている。A cassette cylinder 51 including a cylinder main body 52 and a cap 53 is hermetically sealed and detachably screwed to the back of the gas outlet hole 15 via a sealing member 54. Check valve seat in cassette tube 51
56 and a check valve chamber 57 are formed. A check valve body 58 having a cylindrical shape is inserted into the check valve chamber 57 in a hermetically sealed manner with a sealing tool 59, and the check valve body 58 is inserted.
Is pressed by the check spring 60 toward the check valve seat 56. The check valve chamber 57 communicates with the gas outlet hole 15 through an outlet pressure introducing hole 61 in the check valve body 58.
上記のボンベバルブ１は次のように用いられる。 The above-mentioned cylinder valve 1 is used as follows.
ガスボンベ４からのガス取り出し時には、閉止弁用開
閉操作装置18で閉止弁体17を開き操作する。When taking out gas from the gas cylinder 4, the closing valve body 17 is opened and operated by the closing valve opening / closing device 18.
すると、ガスボンベ４内のガスは、図中の実線矢印で
示すように、ガス入口穴６・ガス入口路７・閉止弁室９
・連通路11を順に経た後、減圧弁体26を押し開いて減圧
弁室13からガス出口路14に流入し、そのガス圧で残圧保
持用逆止弁50の逆止弁体58を逆止バネ60の閉弁力に抗し
て逆止弁座56から離間させ、ガス出口穴15から流出す
る。このガス取出し状態では、バイパス用逆止弁41の逆
止弁体46は、ガスボンベ４の内圧と逆止バネ47の弾圧力
との合力で逆止弁座45に閉止接当されており、閉止弁室
９からバイパス路40を経てガス出口穴15へのガス流出を
阻止する。Then, the gas in the gas cylinder 4 is supplied to the gas inlet hole 6, the gas inlet passage 7, and the shut-off valve chamber 9 as indicated by the solid arrows in the figure.
After sequentially passing through the communication passage 11, the pressure reducing valve body 26 is pushed open to flow from the pressure reducing valve chamber 13 into the gas outlet path 14, and the gas pressure reverses the check valve body 58 of the check valve 50 for residual pressure retention. It is separated from the check valve seat 56 against the valve closing force of the stop spring 60, and flows out from the gas outlet hole 15. In this gas extraction state, the check valve body 46 of the bypass check valve 41 is closed and contacted with the check valve seat 45 by the combined force of the internal pressure of the gas cylinder 4 and the elastic pressure of the check spring 47. Gas outflow from the valve chamber 9 to the gas outlet hole 15 via the bypass passage 40 is prevented.
ガスの取り出しが進んで、ガスボンベ４の残圧が設定
圧にまで低下してきたときには、残圧保持用逆止弁50の
逆止バネ60の閉弁力が、ガス出口路14のガス圧による開
弁力に打ち勝って逆止弁体58を逆止弁座56に閉止接当さ
せて、ガスボンベ４の残圧を設定圧に保持する。When the residual pressure of the gas cylinder 4 is reduced to the set pressure as the gas is taken out, the closing force of the check spring 60 of the check valve 50 for maintaining the residual pressure is increased by the gas pressure of the gas outlet passage 14. By overcoming the valve force, the check valve body 58 is brought into close contact with the check valve seat 56 to maintain the residual pressure of the gas cylinder 4 at the set pressure.
また、逆流ガスがガス出口穴15から残圧保持用逆止弁
50の逆止弁座56内に流入してきたときには、逆止バネ60
の閉弁力に加えて、逆流ガス圧が出口圧導入孔61から逆
止弁室57内に導入されて逆止弁体58の閉弁力として作用
し、逆止弁体58を逆止弁座56に閉止接当させる。これに
より、逆流ガスが逆止弁座56からバイパス路40・閉止弁
室９を経てガス入口穴６へ逆流するのを阻止する。In addition, a check valve for holding the residual pressure
When it flows into the check valve seat 56, the check spring 60
In addition to the valve closing force, the check gas pressure is introduced into the check valve chamber 57 from the outlet pressure introducing hole 61 and acts as the valve closing force of the check valve body 58, and the check valve body 58 is closed. The seat 56 is closed. As a result, the backflow gas is prevented from flowing back from the check valve seat 56 to the gas inlet hole 6 via the bypass passage 40 and the shutoff valve chamber 9.
上記とは逆に、空になったガスボンベ４へのガス充填
時には、ガス出口穴15の周壁のガス出口ノズル15aにガ
ス充填用金具（図示せず）を接続して、カセット筒本体
52の挿入孔52aに挿通されるガス充填用開弁具（図示せ
ず）で残圧保持用逆止弁50の逆止弁体58を逆止バネ60に
抗して強制的に押圧開弁させ、この状態で閉止弁用開閉
操作装置18で閉止弁体17を開き操作する。Conversely, when filling the empty gas cylinder 4 with a gas, a gas filling fitting (not shown) is connected to the gas outlet nozzle 15a on the peripheral wall of the gas outlet hole 15, and the cassette cylinder body is connected.
The check valve body 58 of the residual pressure holding check valve 50 is forcibly pressed and opened against the check spring 60 with a gas filling valve opening tool (not shown) inserted through the insertion hole 52a of the 52. Then, in this state, the closing valve body 17 is opened and operated by the closing valve opening / closing device 18.
すると、充填ガスは、図中の一点鎖線図に示すよう
に、ガス出口穴15から残圧保持用逆止弁50の逆止弁座56
内を経てガス出口路14に流入し、そのガス圧でバイパス
用逆止弁41の逆止弁体46を押し開いて逆止弁室44に流入
し、ここから閉止弁室９・ガス入口路７を経てガス入口
穴６からガスボンベ４内に流入するのである。なお、ガ
ス充填中には、減圧弁12の減圧弁体26は、作動室31に作
用するガス圧でガス圧作動器27を介して減圧弁座28に接
当されている。Then, the filling gas is supplied from the gas outlet hole 15 to the check valve seat 56 of the check valve 50 for maintaining the residual pressure, as shown by the dashed line in the figure.
Then, the gas flows into the gas outlet passage 14, and the gas pressure pushes the check valve body 46 of the bypass check valve 41 open and flows into the check valve chamber 44, from which the closing valve chamber 9 and the gas inlet passage 7 flows into the gas cylinder 4 from the gas inlet hole 6. During gas filling, the pressure reducing valve body 26 of the pressure reducing valve 12 is in contact with the pressure reducing valve seat 28 via the gas pressure actuator 27 at the gas pressure acting on the working chamber 31.
前記の一次側安全弁64は、脚ネジ部３の上側に設けら
れており、ガス入口路７から分岐したガス導出孔65に安
全作動室66を連通させてなる。ガス導出孔65に臨ませて
配置した破裂板68が、安全作動室66に螺合した蓋ボルト
67で保密状に固定される。蓋ボルト67内には可溶栓70が
装着されている。符号71は、ガス噴出口である。The primary side safety valve 64 is provided above the leg screw portion 3, and connects the safety working chamber 66 to a gas outlet hole 65 branched from the gas inlet passage 7. A rupturable plate 68 arranged facing the gas outlet hole 65 has a lid bolt screwed into the safe operation chamber 66.
At 67 it is fixed in a sealed state. A fusible plug 70 is mounted in the lid bolt 67. Reference numeral 71 denotes a gas ejection port.
また、前記の二次側安全弁73は次のように構成され
る。The secondary side safety valve 73 is configured as follows.
即ち、弁箱２の上寄り部内で閉止弁８の閉止弁室９と
減圧弁12の作動室31との間の部分に、安全作動室75が斜
め上向きに形成され、安全作動室75がガス導出孔74を介
してガス出口路14に連通される。ガス導出孔74の終端部
に臨ませて配置した破裂板（安全作動具）77が蓋ボルト
76で保密状に固定される。蓋ボルト76にはバックップ用
押圧具79が螺合され、ガス充填時に破裂板77を受け止め
るようになっている。バックップ用押圧具79にガス噴出
孔80が形成される。That is, a safe working chamber 75 is formed obliquely upward in a portion between the closing valve chamber 9 of the closing valve 8 and the working chamber 31 of the pressure reducing valve 12 in the upper portion of the valve box 2, and the safe working chamber 75 is formed of gas. The outlet port 74 communicates with the gas outlet path 14. A rupturable plate (safety actuating device) 77 facing the end of the gas outlet hole 74
At 76 it is fixed in a sealed state. A backing pressing tool 79 is screwed into the lid bolt 76 to receive the rupturable plate 77 at the time of gas filling. A gas ejection hole 80 is formed in the backup pressing tool 79.
第４図は変形例を示し、上記の二次側安全弁をバネ式
に構成したものを示している。FIG. 4 shows a modification, in which the above-mentioned secondary side safety valve is constructed in a spring type.
弁箱２に取り付けられる蓋ボルト85内には、ガス導出
孔86・開閉弁座87・開閉弁室88が下から順に形成され
る。開閉弁室88に開閉弁体89が上下進退自在で保密状に
螺合される。開閉弁体89内に、安全弁座91・安全作動室
92が下から順に形成される。安全作動室92に挿入した安
全弁体（安全作動具）93が安全作動バネ94で安全弁座91
に閉弁接当される。A gas outlet hole 86, an on-off valve seat 87, and an on-off valve chamber 88 are formed in the lid bolt 85 attached to the valve box 2 in order from the bottom. An opening / closing valve body 89 is screwed into the opening / closing valve chamber 88 in a hermetically sealed manner so as to be movable up and down. Inside the on-off valve body 89, a safety valve seat 91 and a safe operation chamber
92 are formed in order from the bottom. A safety valve element (safety operation tool) 93 inserted into the safety operation chamber 92 is secured by a safety operation spring 94 to a safety valve seat 91.
Is closed.
このバネ式安全弁は、前記の破裂板式のものとは異な
り、安全弁体93を安全作動後も繰り返し使用できるので
便利である。また、ガス充填時においては、開閉弁体89
を開閉弁座87に閉止接当させるだけで安全弁体89の安全
作動を防止できるので、その操作が容易かつ確実であ
る。This spring-type safety valve is different from the above-mentioned rupture disc type and is convenient because the safety valve element 93 can be used repeatedly even after the safety operation. At the time of gas filling, the on-off valve body 89
The safety operation of the safety valve element 89 can be prevented only by bringing the valve into close contact with the opening / closing valve seat 87, so that the operation is easy and reliable.
第１図から第４図は本発明の実施例を示している。 第１図から第３図はその一実施例で、 第１図は、第３図のＩ−Ｉ線矢視断面図、 第２図は、ボンベバルブの系統図、 第３図は、ボンベバルブの縦断面図である。 第４図は、変形例を示す部分図である。 第５図は、従来例を示し、第３図に相当する図である。 １…ボンベバルブ、２…弁箱、４…ガスボンベ、６…ガ
ス入口穴、８…閉止弁、９…閉止弁室、12…減圧弁、13
…減圧弁室、15…ガス出口穴、17…閉止弁体、18…閉止
弁用開閉操作装置、19…閉止弁座、26…減圧弁体、27…
ガス圧作動器、28…減圧弁座、31…作動室、36…釣合い
バネ、40…バイパス路、41…バイパス用逆止弁、44…逆
止弁室、45…逆止弁座、46…逆止弁体、47…逆止バネ、
50…残圧保持用逆止弁、56…逆止弁座、57…逆止弁室、
60…逆止バネ、73…二次側安全弁、74…ガス導出孔、75
…安全作動室、77…安全作動具。1 to 4 show an embodiment of the present invention. FIGS. 1 to 3 show an embodiment thereof. FIG. 1 is a sectional view taken along line II of FIG. 3, FIG. 2 is a system diagram of a cylinder valve, and FIG. 3 is a cylinder valve. FIG. FIG. 4 is a partial view showing a modification. FIG. 5 shows a conventional example and is a view corresponding to FIG. DESCRIPTION OF SYMBOLS 1 ... cylinder valve, 2 ... valve box, 4 ... gas cylinder, 6 ... gas inlet hole, 8 ... shut-off valve, 9 ... shut-off valve chamber, 12 ... pressure reducing valve, 13
... pressure reducing valve chamber, 15 ... gas outlet hole, 17 ... closing valve body, 18 ... opening and closing operation device for closing valve, 19 ... closing valve seat, 26 ... pressure reducing valve body, 27 ...
Gas pressure actuator, 28 ... pressure reducing valve seat, 31 ... working chamber, 36 ... balancing spring, 40 ... bypass passage, 41 ... bypass check valve, 44 ... check valve chamber, 45 ... check valve seat, 46 ... Check valve body, 47 ... check spring,
50: check valve for maintaining residual pressure, 56: check valve seat, 57: check valve chamber,
60 ... check spring, 73 ... secondary side safety valve, 74 ... gas outlet hole, 75
… Safe working room, 77… Safe working equipment.
Claims (4)
（８）と減圧弁（12）とガス出口穴（15）とを順に設
け、 上記ガス出口穴（15）と上記の閉止弁（８）の出口との
間で、上記の減圧弁（12）に対して並列にバイパス路
（40）を設け、 上記のバイパス路（40）に、上記の閉止弁（８）の出口
から上記ガス出口穴（15）への流れを阻止するバイパス
用逆止弁（41）を設けた、ことを特徴とする減圧弁付き
ボンベバルブ。A gas inlet hole (6), a closing valve (8), a pressure reducing valve (12), and a gas outlet hole (15) are provided in this order in a valve box (2). A bypass (40) is provided in parallel with the pressure reducing valve (12) between the outlet of the closing valve (8) and the closing valve (8) in the bypass (40). A cylinder valve with a pressure reducing valve, comprising a bypass check valve (41) for preventing a flow from the outlet of the gas outlet to the gas outlet hole (15).
ス入口穴（６）に、閉止弁（８）の閉止弁室（９）と減
圧弁（12）の減圧弁室（13）とを順に介して、ガス出口
穴（15）を連通させ、 上記の閉止弁（８）は、上記の閉止弁室（９）に挿入し
た閉止弁体（17）を閉止弁用開閉操作装置（18）で閉止
弁座（19）に開閉操作可能に構成し、 上記の減圧弁（12）は、上記の減圧弁室（13）に挿入し
た減圧弁体（26）をガス圧作動器（27）で減圧弁座（2
8）に開閉作動させるように構成し、 そのガス圧作動器（27）は、釣合いバネ（36）で開弁側
へ弾圧されるとともに作動室（31）のガス圧力で閉弁側
へ押圧されて、その釣合いバネ（36）とガス圧力との差
力によって上記の減圧弁体（26）を上記の減圧弁座（2
8）に開閉作動させるように構成し、上記の作動室（3
1）を上記ガス出口穴（15）に連通させて構成した、減
圧弁付きボンベバルブにおいて、 上記の閉止弁室（９）の周囲のうちの、上記の閉止弁用
開閉操作装置（18）側の部分と上記ガス出口穴（15）側
の部分から外れる部分に、上記の減圧弁室（13）を形成
し、 上記の閉止弁室（９）から上記の減圧弁室（13）を経て
上記ガス出口穴（15）に至るまでの間に、上記の減圧弁
（12）に対して並列にバイパス路（40）を設けて、その
バイパス路（40）にバイパス用逆止弁（41）を介装し、 上記バイパス用逆止弁（41）は、逆止弁室（44）に挿入
した逆止弁体（46）を逆止バネ（47）で逆止弁座（45）
に向けて弾圧してなり、 前記の閉止弁用開閉操作装置（18）で前記の閉止弁体
（17）を開き操作した状態では、 前記ガスボンベ（４）からのガス取り出し時には、その
ガスボンベ（４）の内圧と上記の逆止バネ（47）の弾圧
力との合力によって上記の逆止弁体（46）を上記の逆止
弁座（45）に閉止接当させて、前記の閉止弁室（９）か
ら上記のバイパス路（40）を経て上記ガス出口穴（15）
へのガス流出を阻止するのに対して、 上記ガスボンベ（４）へのガス充填時には、上記ガス出
口穴（15）の充填ガス圧によって上記の逆止バネ（47）
の閉弁力に抗して上記の逆止弁体（46）を上記の逆止弁
座（45）から離間させて、上記ガス出口穴（15）から上
記のバイパス路（40）を経て上記の閉止弁室（９）への
ガス流入を許容した、 ことを特徴とする、減圧弁付きボンベバルブ。2. In a valve box (2) of a cylinder valve (1), a closing valve chamber (9) of a closing valve (8) and a pressure reducing valve chamber (12) of a pressure reducing valve (12) are inserted into a gas inlet hole (6). 13), the gas outlet hole (15) is communicated in order, and the closing valve (8) operates the closing valve body (17) inserted in the closing valve chamber (9) to open and close the closing valve. The device (18) is configured to be capable of opening and closing a closing valve seat (19), and the pressure reducing valve (12) is connected to a pressure reducing valve body (26) inserted into the pressure reducing valve chamber (13) by a gas pressure actuator. (27) with pressure reducing valve seat (2
The gas pressure actuator (27) is resiliently pressed to the valve opening side by a balancing spring (36) and is pressed to the valve closing side by the gas pressure of the working chamber (31). Then, the pressure reducing valve body (26) is moved to the pressure reducing valve seat (2) by the differential force between the balance spring (36) and the gas pressure.
8) to open and close, the above-mentioned working chamber (3
A cylinder valve with a pressure reducing valve, wherein 1) is communicated with the gas outlet hole (15), wherein the opening / closing operation device (18) for the closing valve in the periphery of the closing valve chamber (9). The pressure reducing valve chamber (13) is formed in a portion deviated from the portion on the side of the gas outlet hole (15) and the portion on the side of the gas outlet hole (15). A bypass passage (40) is provided in parallel with the pressure reducing valve (12) before reaching the gas outlet hole (15), and a bypass check valve (41) is provided in the bypass passage (40). The check valve for bypass (41) is provided with a check valve body (46) inserted into the check valve chamber (44) by a check spring (47).
When the closing valve body (17) is opened and operated by the closing valve opening / closing device (18), when the gas is taken out from the gas cylinder (4), the gas cylinder (4) is opened. ) And the elastic force of the check spring (47), the check valve body (46) is brought into close contact with the check valve seat (45), and the check valve chamber is closed. From (9) through the above-mentioned bypass path (40), the above-mentioned gas outlet hole (15)
On the other hand, when the gas cylinder (4) is filled with gas, the gas pressure in the gas outlet hole (15) prevents the check spring (47) from flowing out.
The check valve body (46) is separated from the check valve seat (45) against the valve closing force of A gas valve with a pressure reducing valve, wherein gas is allowed to flow into the closing valve chamber (9).
前記バイパス用逆止弁（41）の逆止弁室（44）から前記
ガス出口穴（15）に至るまでの間に、残圧保持用逆止弁
（50）を介装し、 この残圧保持用逆止弁（50）は、逆止弁室（57）に挿入
した逆止弁体（58）を逆止バネ（60）で逆止弁座（56）
に向けて弾圧してなり、 閉止弁用開閉操作装置（18）で前記の閉止弁（８）の閉
止弁体（17）を開き操作した状態では、 ガスボンベ（４）の残圧が設定圧を越えているときに
は、その残圧が上記の逆止バネ（60）の閉弁力に抗して
上記の逆止弁体（58）を上記の逆止弁座（56）から離間
させて、上記ガスボンベ（４）内のガスを上記の逆止弁
座（56）から前記ガス出口穴（15）流出させるのに対し
て、 同上ガスボンベ（４）の残圧が設定圧にまで低下してき
たときには、上記の逆止バネ（60）の閉弁力がガス圧に
よる開弁力に打ち勝って上記の逆止弁体（58）を上記の
逆止弁座（56）に閉止接当させて、そのガスボンベ
（４）の残圧を設定圧に保持し、 一方、逆流ガスが上記ガス出口穴（15）から上記の逆止
弁座（56）に流入してきたときには、上記の逆止バネ
（60）の閉弁力に加えて逆流ガス圧が上記の逆止弁体
（58）の閉弁力として作用して、その逆止弁体（58）を
上記の逆止弁座（56）に閉止接当させることにより、そ
の逆流ガスが上記の逆止弁座（56）から上記バイパス路
（40）と上記の閉止弁室（９）とを経て上記ガス入口穴
（６）へ逆流するのを阻止すべく構成した、 請求項１又は２に記載した、減圧弁付きボンベバルブ。3. Between the pressure reducing valve chamber (13) of the pressure reducing valve (12) and the check valve chamber (44) of the bypass check valve (41) to reach the gas outlet hole (15). A check valve (50) for holding the residual pressure is interposed in the valve, and the check valve (50) for holding the residual pressure checks the check valve body (58) inserted into the check valve chamber (57). Check valve seat (56) with spring (60)
When the closing valve element (17) of the closing valve (8) is opened and operated by the closing valve opening / closing device (18), the residual pressure of the gas cylinder (4) becomes lower than the set pressure. When it exceeds, the residual pressure opposes the closing force of the check spring (60) to separate the check valve body (58) from the check valve seat (56), While the gas in the gas cylinder (4) flows out of the gas outlet hole (15) from the check valve seat (56), when the residual pressure of the gas cylinder (4) decreases to the set pressure, The valve closing force of the check spring (60) overcomes the valve opening force due to the gas pressure to cause the check valve body (58) to close and contact the check valve seat (56). The residual pressure of (4) is maintained at the set pressure. On the other hand, when the backflow gas flows into the check valve seat (56) from the gas outlet hole (15), In addition to the valve closing force of the check spring (60), the backflow gas pressure acts as the valve closing force of the check valve body (58), and the check valve body (58) is stopped by the check valve. By bringing the valve into close contact with the valve seat (56), the backflow gas flows from the check valve seat (56) through the bypass path (40) and the shutoff valve chamber (9) to the gas inlet hole ( The cylinder valve with a pressure reducing valve according to claim 1, wherein the cylinder valve is configured to prevent backflow to 6).
見て、 前記の弁箱（２）の下面に前記のガス入口穴（６）を開
口するとともに、同上の弁箱（２）の途中高さ部に前記
のガス出口穴（15）を横向きに開口し、その弁箱（２）
の上寄り部に前記の閉止弁（８）の閉止弁室（９）を上
向き開口状に形成し、 上記の弁箱（２）の途中高さ部で上記ガス出口穴（15）
とは異なる部分に、前記の減圧弁（12）の減圧弁室（1
3）及び作動室（31）を横向きに並べて形成し、 上記の閉止弁室（９）の横外側で上記の減圧弁室（13）
の上側部分に、前記バイパス用逆止弁（41）の逆止弁室
（44）を上記ガス出口穴（15）と同じ向きに形成した、 請求項１から３のいずれかに記載した、減圧弁付きボン
ベバルブ。4. A gas inlet hole (6) is opened in a lower surface of the valve box (2) as viewed in a state where the cylinder valve (1) is in a vertical position. The gas outlet hole (15) is opened laterally at the midway of the height of the valve box (2).
A closing valve chamber (9) of the closing valve (8) is formed in an upward opening shape at an upper part of the gas outlet hole (15) at an intermediate height of the valve box (2).
The pressure reducing valve chamber (1) of the pressure reducing valve (12)
3) and a working chamber (31) are formed side by side, and the pressure reducing valve chamber (13) is provided outside the closing valve chamber (9).
The depressurization according to any one of claims 1 to 3, wherein a check valve chamber (44) of the bypass check valve (41) is formed in an upper part of the valve in the same direction as the gas outlet hole (15). A cylinder valve with a valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011599A JP2821699B2 (en) | 1990-01-19 | 1990-01-19 | Cylinder valve with pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011599A JP2821699B2 (en) | 1990-01-19 | 1990-01-19 | Cylinder valve with pressure reducing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03219172A JPH03219172A (en) | 1991-09-26 |
| JP2821699B2 true JP2821699B2 (en) | 1998-11-05 |
Family
ID=11782369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011599A Expired - Fee Related JP2821699B2 (en) | 1990-01-19 | 1990-01-19 | Cylinder valve with pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2821699B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6766829B2 (en) | 2000-02-18 | 2004-07-27 | Kabushiki Kaisha Neriki | Valve assembly for gas cylinder |
| CN105626878A (en) * | 2016-03-28 | 2016-06-01 | 吴忠仪表有限责任公司 | Safety shut-off valve for natural gas pressure regulating skid |
| WO2016194146A1 (en) * | 2015-06-02 | 2016-12-08 | 株式会社ネリキ | Container valve |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69300301T2 (en) * | 1992-09-09 | 1996-04-04 | Neriki Kk | Valve arrangement for gas containers. |
| FR2735209B1 (en) † | 1995-06-08 | 1997-07-25 | Air Liquide | TAP / REGULATOR ASSEMBLY FOR GAS BOTTLE AND GAS BOTTLE PROVIDED WITH SUCH A SET |
| JPH1194197A (en) * | 1997-09-19 | 1999-04-09 | Neriki:Kk | Valve device for gas cylinder and pressure reducing valve thereof |
| GB9724168D0 (en) | 1997-11-14 | 1998-01-14 | Air Prod & Chem | Gas control device and method of supplying gas |
| EP1126202B1 (en) * | 2000-02-18 | 2004-09-22 | Kabushiki Kaisha Neriki | Valve assembly for gas cylinder |
| US6857447B2 (en) | 2002-06-10 | 2005-02-22 | Advanced Technology Materials, Inc. | Pressure-based gas delivery system and method for reducing risks associated with storage and delivery of high pressure gases |
| KR102457115B1 (en) * | 2022-05-13 | 2022-10-20 | 주식회사 네오스펙 | one body type filling and decompressing valve for high pressure tank |
-
1990
- 1990-01-19 JP JP2011599A patent/JP2821699B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6766829B2 (en) | 2000-02-18 | 2004-07-27 | Kabushiki Kaisha Neriki | Valve assembly for gas cylinder |
| WO2016194146A1 (en) * | 2015-06-02 | 2016-12-08 | 株式会社ネリキ | Container valve |
| AU2015271926B1 (en) * | 2015-06-02 | 2016-12-15 | Neriki Valve Co., Ltd. | Cylinder valve |
| US9683706B2 (en) | 2015-06-02 | 2017-06-20 | Neriki Valve Co., Ltd. | Cylinder valve |
| CN105626878A (en) * | 2016-03-28 | 2016-06-01 | 吴忠仪表有限责任公司 | Safety shut-off valve for natural gas pressure regulating skid |
| CN105626878B (en) * | 2016-03-28 | 2018-11-02 | 吴忠仪表有限责任公司 | Natural gas pressure regulating sled safety cut-off valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03219172A (en) | 1991-09-26 |
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