JP2004138104A - Gas pressure adjustable feeder - Google Patents

Gas pressure adjustable feeder Download PDF

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Publication number
JP2004138104A
JP2004138104A JP2002301352A JP2002301352A JP2004138104A JP 2004138104 A JP2004138104 A JP 2004138104A JP 2002301352 A JP2002301352 A JP 2002301352A JP 2002301352 A JP2002301352 A JP 2002301352A JP 2004138104 A JP2004138104 A JP 2004138104A
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JP
Japan
Prior art keywords
cylinder
gas
gas pressure
cover
pressure adjusting
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.)
Pending
Application number
JP2002301352A
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Japanese (ja)
Inventor
Toyoyuki Hirayama
平山 豊之
Yoshiaki Arai
新井 義明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Seisakusho Co Ltd
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Asahi Seisakusho Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Asahi Seisakusho Co Ltd filed Critical Asahi Seisakusho Co Ltd
Priority to JP2002301352A priority Critical patent/JP2004138104A/en
Publication of JP2004138104A publication Critical patent/JP2004138104A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a high-reliability gas pressure adjustable feeder provided with an abnormal pressure relief safety mechanism with a simple structure capable of quickly responding to an abnormal temperature of a steel cylinder cover and capable of immediately discharging a gas in the cylinder of which the pressure is abnormally boosted by the abnormal temperature. <P>SOLUTION: The gas pressure adjustable feeder is provided with a steel cylinder cover 11 for storing the steel cylinder 50, an upper cover 13 to be joined with the cylinder cover and provided with a gas discharging hole 29, and a gas pressure adjusting mechanism built in the upper cover which is joined with the cylinder and leads the gas in the cylinder to the gas discharging hole by adjusting the gas in the cylinder to prescribed secondary pressure. A cylinder seat 60 to be deformed at a prescribed temperature is provided to a cylinder bearing surface of the cylinder cover. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、高圧ガスボンベを収容して所定二次圧力にガス圧を調整してガスを供給するガス圧力調整供給装置、特に高圧ガスボンベが高温になったときに異常に上昇した圧力を解放する機構を備えたガス圧力調整供給装置に関する。
【0002】
【従来の技術】
ビールサーバと呼ばれる生ビールを貯蔵樽から注ぎ出す装置には、ボンベ内に充填された炭酸ガスを所定の圧力で樽内に供給するガス圧力調整供給装置が備え付けられている。図4はその代表的な構造を示す。この例では、炭酸ガスを充填したボンベ50がガス圧力調整機構とともにボンベカバー11、上部カバー13、調整カバー14からなる組み立てケースの中に収容されている。ボンベカバー11は、ボンベ50のほぼ全体を収容している。上部カバー13は、調整カバー14を介してボンベカバー11と結合されている。調整カバー14は、上部調整カバー16と下部調整カバー15とからなっている。下部調整カバー15は、ボンベカバー11及び上部カバー13と螺着され、一方、上部調整カバー16は、下部調整カバー15内に先端部が入り込むように螺着されている。上部調整カバー16と上部カバー13との間隙にはOリング46が置かれていて上部調整カバーから上部の空間が気密に保たれるようになっている。
【0003】
ガス圧力調整機構は、ボンベ50の口金を覆うボンベパッキン31の中心孔を通して先端部がボンベ口金の中に挿し込まれるカットノズル22、このカットノズル22の後端に設けられたフィルター23、フィルター23の後端に設けられたニードルバルブ25、ニードルバルブ25の先端251と当接するバルブ受け板26、及びニードルバルブ25の先端251がバルブ受け板26に当接する力を調節する調整ばね24を有し、このうちカットノズル22、フィルター23、ニードルバルブ25等が下部弁受け41、上部弁受け44により画成される空間内に収容されたものとなっている。
【0004】
上記下部弁受け41と上部弁受け44の間にはOリング止め43が配設されている。また、上述の上部調整カバー16と上部弁受け44及びOリング止め43の作る空間にはOリング18が配設されており、また、上部弁受け44は上部調整カバー16内にバルブパッキン29を介して嵌め込まれている。したがって、ボンベ50からカットノズル22、フィルター23、ニードルバルブ25、バルブ受け板26を経てガス吐出孔29に至る経路は気密の下におかれている。なお、バルブ受け板26は、上部カバー13の天井からピストンスプリング27等を介して下方に一定の押圧力を与えることができるように、かつ外部環境から遮断された状態で上下動可能に取り付けられている。
【0005】
このようなガス圧力調整供給装置には、火気の近接等による環境温度の異常な上昇によりボンベ50内の圧力が異常に上昇したときに、ガスを逸出させてボンベの破裂に至るような重大事故を防止する異常圧力解放安全機構が備えられている。この異常圧力解放安全機構は、下部弁受け41に(フィルター23から上部調整カバー16に至る)貫通孔48を設けるとともに下部弁受け41と上部調整カバー16との間に高温、たとえば60℃で強度が低下、たとえば流動化する熱可塑性素材製のシール部材47を配設し、高温下で高圧が掛かったときには、このシール部材47が軟化あるいは流動化して高圧により破壊あるいは流出して下部調整カバー15、さらにはボンベカバー11と上部カバー13との隙間に至るガス通路45を通って異常昇圧したガスが逸出されるようになっている。
【0006】
【発明が解決しようとする課題】
しかしながら、上記ガス圧力調整供給装置は、異常圧力解放安全機構をそのガス流路内に備えているために、ボンベ内ガスの異常な上昇を直ちに検知し、放出させるという、即応性に欠けるという問題がある。すなわち、ボンベ50の異常な加熱からボンベ内のガス圧が異常に上昇し、熱可塑性素材製のシール部材47の軟化又は流動化して高圧ガスが解放されるまでに相当のタイムラグを生じる。また、圧力調整機構部の構造が相当に複雑になって部品点数が増加し、組み立て工数、検査点検工数等も増加して製品単価低減の障害となっているという問題がある。
【0007】
本発明は、かかる従来のガス圧力調整供給装置における問題点を解決することを目的とし、特に簡素な構造でボンベカバーの異常温度に速やかに反応し、その温度により異常に昇圧するボンベ内ガスを直ちに放出させる異常圧力解放安全機構を設けた信頼性の高いガス圧力調整供給装置を提供することを目的とする。
【0008】
【課題を解決するための手段】
本発明に係るガス圧力調整供給装置は、ボンベを収容するボンベカバーと、該ボンベカバーと結合されガス吐出孔を備える上部カバーと、該上部カバー内に内蔵され前記ボンベと結合してボンベ内のガスを所定二次圧力に調整してガス吐出孔に導くガス圧力調整機構とを備えるガス圧力調整供給装置において、前記ボンベカバーにはそのボンベ座面に所定温度において変形するボンベシートが設けられている。
【0009】
本発明においては、ボンベシートは可溶合金又は形状記憶樹脂であることが好ましい。これにより、ボンベカバーの異常温度上昇に対しボンベシートが速やかに変形し、ボンベパッキン部に生じた隙間からボンベ内高圧ガスが解放され安全が確保される。
【0010】
上記各発明において、ガス圧力調整器機構は、ボンベパッキンを通して先端部がボンベ口金内に挿し込まれるカットノズル、該カットノズルの後端に設けられたフィルター、フィルターの後端に設けられたニードルバルブ、該ニードルバルブの先端と当接する受け板、ニードルバルブの先端が受け板に当接する力を調節するばねを有し、かつ前記カットノズルの基部、フィルター、ばね及びニードルバルブの基部が筒状ケースにより囲まれているものとするのが好ましい。
【0011】
また、ガス圧力調整機構とボンベとが平パッキンにより気密結合され、その気密結合が温度上昇に伴うボンベシートの変形により解除されるようになっているのが好ましい。かかる構成により、簡素な構造で気密を保持し、また、異常圧力を速やかに解放することができる。
【0012】
【発明の実施の形態】
以下、図面を参照して本発明を具体的に説明する。図1は本発明の1実施例に係るガス圧力調整供給装置の断面図であり、図2はこのガス圧力調整装置が加熱され、又は該装置を取り囲む雰囲気が高温になったときに、ボンベ内のガス圧力が異常に高くなって異常圧力解放安全機構が作動した状態を示す断面図である。
【0013】
図1に示すように、本発明に係るガス圧力調整供給装置でも従来例と同様に、ボンベ50を収容するボンベカバー11に調整カバー14を介して上部カバー13が結合されている。また、この上部カバー13には、ボンベ内のガスを所定二次圧力に調整してガス吐出孔に導くガス圧力調整機構が内蔵され、圧力の調整されたガスがこの上部カバー13に設けたガス吐出孔29からたとえばビール樽内に導かれるようになっている。
【0014】
ガス圧力調整機構も、従来例と同様、カットノズル22の先端部をボンベ口金内に挿し込むようにし、その後端にフィルター23を設け、該フィルター23の後側にニードルバルブ25を設け、さらに該ニードルバルブ25の先端をバルブ受け板26に当接するようにするとともに、該ニードルバルブ25のバルブ受け板26に当接する力を調整ばね24によって調節するようになっている。
【0015】
したがって、本発明においても従来例と同様に、ボンベ50から流出するガスはこれらカットノズル22、フィルター23、ニードルバルブ25を通り、さらにはバルブ受け板26とニードルバルブ25の先端部のわずかな隙間を通って上部カバー13に設けたガス吐出孔29から所定二次圧力で必要個所に送給される。
【0016】
本発明では、上記ガス圧力調整供給装置において、ボンベカバー11、ひいてはボンベ50が異常温度になる場合のボンベ50内の高圧ガスを解放するために、ボンベカバー11のボンベ座面に所定温度において変形するボンベシート60を設けている。このようにすることにより、ボンベカバーの温度が、例えば調理用のガス炎により加熱され、あるいは該ボンベカバーを取り囲む雰囲気が高温になると、ボンベシート60が軟化しあるいは融解して変形し、ボンベ座面が下降するため、ボンベ内の高圧ガスは、図2に矢印で示す隙間を通ってボンベカバー11に設けたネジ部やガス放出孔12より容易に放出される。これにより異常圧力が解放され、安全を確保することができる。
【0017】
本発明においては、ボンベシート60はボンベ50に密着してボンベと同一温度になっているから、結局ボンベの温度が所定の温度に達すると直ちにボンベ内の高圧ガスを解放することができる。すなわち、適切なボンベシート材料を選択することによって、簡素な構造で安価に、信頼性の高い異常圧力解放安全機構を構成することができる。
【0018】
ボンベシート60は、可溶合金又は形状記憶樹脂であることが好ましい。例えばビスマス系の可溶合金であるウッド合金やセロロー147合金等が利用できる。また、形状記憶樹脂である株式会社ポリシス製のハプラメモリーIIIが利用できる。これらの材料を利用したボンベシート60は、ボンベ50の温度変化によく追随して目的に適い、正常時(所定温度範囲)には容易にボンベパッキン31に所定の押圧力を加えて気密を保持することができ、異常時(所定温度以上)にはボンベパッキン31部に生ずる隙間から異常に昇圧したガスを解放することができる。
【0019】
本発明の実施に当たっては、ガス圧力調整機構を従来例で用いられているものとすることもできるが、図1に示されているように、カットノズル22の基部、フィルター23、調整ばね24及びニードルバルブ25の基部に至る部分を筒状ケース32に収容したものとすることが好適である。このような構成をとることにより部品点数の削減を図ることができる。すなわち、図4(従来例)と図1(本発明例を)を対比すれば分かるように、本発明例では、ガス圧力調整機構から異常ガス圧を解放するために必要な部品、たとえば下部弁受け41、上部弁受け44、Oリング受け43、Oリング18及び安全弁としてのシール部材47等を要しない。これらの果たすべき機能は、ボンベパッキン31の変形等により達成されるからである。
【0020】
ボンベパッキン31は、弾性変形の大きい樹脂製、例えばウレタンゴムやブチルゴム製の平パッキンが好ましい。図3に示すように係るボンベパッキン31は、カットノズル22で穿孔された封板50aの穿孔部周囲の変形を十分に吸収し、押圧されたボンベパッキン31によりガス圧力調整機構とボンベとの気密が確保される。しかし、異常時にはその気密はボンベシート60の変形により速やかに解除される。
【0021】
【発明の効果】
本発明に係るガス圧力調整供給装置によると、簡素な構造で通常使用時には確実に機密性を確保することができ、ボンベの異常温度上昇に対しは、速やかにかつ確実にボンベ内高圧ガスを解放することができる。また、部品点数、組み立て工数等が少なく、また、保守・整備が容易で経済的である。
【図面の簡単な説明】
【図1】本発明に係るガス圧力調整供給装置の断面を示す図である。
【図2】図1の装置において異常圧力解放安全機構が作動した状態を示す断面図である。
【図3】図1に示す装置においてボンベ口金部周りの拡大断面を示す図である。
【図4】従来のガス圧力調整供給装置の断面を示す図である。
【符号の説明】
11:ボンベカバー
12:ガス放出孔
13:上部カバー
14:調整カバー
15:下部調整カバー
16:上部調整カバー
18:Oリング
22:カットノズル
23:フィルター
24:調整ばね
25:ニードルバルブ
26:バルブ受け板
27:ピストンスプリング
29:ガス吐出孔
31:ボンベパッキン
32:筒状ケース
41:下部弁受け
43:Oリング受け
44:上部弁受け
45:ガス通路
46:Oリング
47:シール部材
48:貫通孔
50:ボンベ
60:ボンベシート
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a gas pressure adjusting / supplying device that accommodates a high-pressure gas cylinder and adjusts the gas pressure to a predetermined secondary pressure to supply the gas, and in particular, a mechanism that releases a pressure that is abnormally increased when the high-pressure gas cylinder becomes hot. The present invention relates to a gas pressure adjusting / supplying device provided with:
[0002]
[Prior art]
BACKGROUND ART A device called a beer server for pouring draft beer from a storage barrel is provided with a gas pressure adjusting and supplying device for supplying carbon dioxide filled in a cylinder at a predetermined pressure into the barrel. FIG. 4 shows a typical structure. In this example, a cylinder 50 filled with carbon dioxide is housed in an assembly case including a cylinder cover 11, an upper cover 13, and an adjustment cover 14 together with a gas pressure adjusting mechanism. The cylinder cover 11 accommodates substantially the entire cylinder 50. The upper cover 13 is connected to the cylinder cover 11 via the adjustment cover 14. The adjustment cover 14 includes an upper adjustment cover 16 and a lower adjustment cover 15. The lower adjustment cover 15 is screwed to the cylinder cover 11 and the upper cover 13, while the upper adjustment cover 16 is screwed to the lower adjustment cover 15 so that a tip portion enters the lower adjustment cover 15. An O-ring 46 is placed in the gap between the upper adjustment cover 16 and the upper cover 13 so that a space above the upper adjustment cover is kept airtight.
[0003]
The gas pressure adjusting mechanism includes a cut nozzle 22 whose tip is inserted into the cylinder base through a center hole of a cylinder packing 31 that covers the base of the cylinder 50, a filter 23 provided at a rear end of the cut nozzle 22, and a filter 23. A needle valve 25 provided at a rear end of the needle valve 25, a valve receiving plate 26 that abuts on the distal end 251 of the needle valve 25, and an adjusting spring 24 that adjusts a force with which the distal end 251 of the needle valve 25 abuts on the valve receiving plate 26. The cut nozzle 22, the filter 23, the needle valve 25, and the like are housed in a space defined by the lower valve receiver 41 and the upper valve receiver 44.
[0004]
An O-ring stopper 43 is provided between the lower valve receiver 41 and the upper valve receiver 44. The O-ring 18 is disposed in a space formed by the upper adjustment cover 16, the upper valve receiver 44, and the O-ring stopper 43, and the upper valve receiver 44 has the valve packing 29 in the upper adjustment cover 16. It is fitted through. Therefore, the path from the cylinder 50 to the gas discharge holes 29 via the cut nozzle 22, the filter 23, the needle valve 25, and the valve receiving plate 26 is kept airtight. The valve receiving plate 26 is attached so as to be able to apply a constant pressing force downward from the ceiling of the upper cover 13 via the piston spring 27 and the like, and to be vertically movable while being cut off from the external environment. ing.
[0005]
Such a gas pressure adjusting / supplying apparatus has a serious problem that when the pressure in the cylinder 50 rises abnormally due to an abnormal rise in the environmental temperature due to the proximity of fire or the like, the gas escapes and the cylinder bursts. An abnormal pressure release safety mechanism to prevent accidents is provided. This abnormal pressure release safety mechanism is provided with a through hole 48 (from the filter 23 to the upper adjustment cover 16) in the lower valve receiver 41 and has a strength between the lower valve receiver 41 and the upper adjustment cover 16 at a high temperature, for example, 60 ° C. For example, when a sealing member 47 made of a thermoplastic material which is fluidized is provided, and when a high pressure is applied at a high temperature, the sealing member 47 is softened or fluidized and is broken or flows out by the high pressure, and the lower adjusting cover 15 Further, the abnormally pressurized gas escapes through a gas passage 45 extending to a gap between the cylinder cover 11 and the upper cover 13.
[0006]
[Problems to be solved by the invention]
However, since the above-mentioned gas pressure adjusting / supplying device has an abnormal pressure release safety mechanism in its gas flow path, it has a problem of lack of responsiveness that immediately detects and releases an abnormal rise of gas in the cylinder. There is. That is, the gas pressure in the cylinder rises abnormally due to abnormal heating of the cylinder 50, and a considerable time lag occurs until the high-pressure gas is released by the softening or fluidization of the sealing member 47 made of a thermoplastic material. Further, there is a problem that the structure of the pressure adjusting mechanism becomes considerably complicated, the number of parts increases, the number of assembling steps, the number of inspection and inspection steps, and the like increase, which hinders the reduction in the unit cost of the product.
[0007]
An object of the present invention is to solve the problems in the conventional gas pressure adjusting and supplying device, and to quickly react to an abnormal temperature of a cylinder cover with a particularly simple structure, and to reduce the gas in the cylinder which is abnormally pressurized by the temperature. It is an object of the present invention to provide a highly reliable gas pressure adjusting / supplying device provided with an abnormal pressure release safety mechanism for immediate release.
[0008]
[Means for Solving the Problems]
A gas pressure adjusting / supplying device according to the present invention includes: a cylinder cover for accommodating a cylinder; an upper cover having a gas discharge hole coupled to the cylinder cover; A gas pressure adjusting / supplying device including a gas pressure adjusting mechanism for adjusting gas to a predetermined secondary pressure and guiding the gas to a gas discharge hole, wherein the cylinder cover is provided with a cylinder sheet deformable at a predetermined temperature on a cylinder seating surface thereof. I have.
[0009]
In the present invention, the cylinder sheet is preferably a fusible alloy or a shape memory resin. Accordingly, the cylinder sheet is quickly deformed in response to an abnormal rise in the temperature of the cylinder cover, and the high-pressure gas in the cylinder is released from the gap formed in the cylinder packing portion, thereby ensuring safety.
[0010]
In each of the above inventions, the gas pressure regulator mechanism includes a cut nozzle whose tip is inserted into a cylinder base through a cylinder packing, a filter provided at a rear end of the cut nozzle, and a needle valve provided at a rear end of the filter. A base plate of the cut nozzle, a base plate of the filter, a spring, and a base part of the needle valve, the base plate of the cut nozzle having a spring that adjusts a force with which the base of the needle valve comes into contact with the base plate; Is preferably enclosed by
[0011]
Preferably, the gas pressure adjusting mechanism and the cylinder are hermetically connected by a flat packing, and the hermetic connection is released by deformation of the cylinder sheet due to a rise in temperature. With this configuration, airtightness can be maintained with a simple structure, and abnormal pressure can be released quickly.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be specifically described with reference to the drawings. FIG. 1 is a cross-sectional view of a gas pressure adjusting / supplying device according to one embodiment of the present invention. FIG. 2 is a diagram illustrating a gas pressure adjusting / supplying device when the gas pressure adjusting device is heated or an atmosphere surrounding the device is heated to a high temperature. FIG. 7 is a cross-sectional view showing a state in which the gas pressure of the gas has become abnormally high and the abnormal pressure release safety mechanism has been activated.
[0013]
As shown in FIG. 1, in the gas pressure adjusting and supplying apparatus according to the present invention, similarly to the conventional example, the upper cover 13 is connected to the cylinder cover 11 for accommodating the cylinder 50 via the adjusting cover 14. The upper cover 13 has a built-in gas pressure adjusting mechanism that adjusts the gas in the cylinder to a predetermined secondary pressure and guides the gas to a gas discharge hole. The liquid is guided from the discharge hole 29 into, for example, a beer barrel.
[0014]
As in the conventional example, the gas pressure adjusting mechanism is also configured such that the tip of the cut nozzle 22 is inserted into the cylinder cap, a filter 23 is provided at the rear end, and a needle valve 25 is provided at the rear side of the filter 23. The tip of the needle valve 25 is brought into contact with the valve receiving plate 26, and the force with which the needle valve 25 comes into contact with the valve receiving plate 26 is adjusted by the adjusting spring 24.
[0015]
Therefore, in the present invention, similarly to the conventional example, the gas flowing out of the cylinder 50 passes through the cut nozzle 22, the filter 23, and the needle valve 25, and further, a slight gap between the valve receiving plate 26 and the tip of the needle valve 25. The gas is supplied to a required portion at a predetermined secondary pressure from a gas discharge hole 29 provided in the upper cover 13 through the gas passage.
[0016]
In the present invention, in the gas pressure adjusting and supplying device, the cylinder seat surface of the cylinder cover 11 is deformed at a predetermined temperature in order to release the high-pressure gas in the cylinder 50 when the cylinder cover 11 and the cylinder 50 reach an abnormal temperature. The cylinder sheet 60 is provided. By doing so, when the temperature of the cylinder cover is heated by, for example, a gas flame for cooking, or when the atmosphere surrounding the cylinder cover becomes high, the cylinder sheet 60 is softened or melted and deformed, and the cylinder seat is deformed. Since the surface descends, the high-pressure gas in the cylinder is easily discharged from the screw portion and the gas discharge hole 12 provided in the cylinder cover 11 through the gap indicated by the arrow in FIG. Thereby, abnormal pressure is released, and safety can be ensured.
[0017]
In the present invention, since the cylinder sheet 60 is in close contact with the cylinder 50 and has the same temperature as the cylinder, the high-pressure gas in the cylinder can be released immediately after the cylinder temperature reaches a predetermined temperature. That is, by selecting an appropriate cylinder sheet material, a highly reliable abnormal pressure release safety mechanism having a simple structure and a low cost can be configured.
[0018]
The cylinder sheet 60 is preferably a fusible alloy or a shape memory resin. For example, a bismuth-based fusible alloy such as a wood alloy or Celloro 147 alloy can be used. In addition, a shape memory resin, Hapla Memory III manufactured by Polycis Corporation can be used. The cylinder sheet 60 using these materials follows the temperature change of the cylinder 50 well and is suitable for the purpose. In a normal state (predetermined temperature range), a predetermined pressing force is easily applied to the cylinder packing 31 to maintain airtightness. In the event of an abnormality (above a predetermined temperature), abnormally pressurized gas can be released from the gap formed in the cylinder packing 31.
[0019]
In practicing the present invention, the gas pressure adjusting mechanism may be the one used in the conventional example, but as shown in FIG. 1, the base of the cut nozzle 22, the filter 23, the adjusting spring 24 and It is preferable that the portion reaching the base of the needle valve 25 be housed in the cylindrical case 32. With such a configuration, the number of components can be reduced. That is, as can be seen by comparing FIG. 4 (conventional example) and FIG. 1 (example of the present invention), in the example of the present invention, components necessary for releasing the abnormal gas pressure from the gas pressure adjusting mechanism, for example, the lower valve The receiver 41, the upper valve receiver 44, the O-ring receiver 43, the O-ring 18, the seal member 47 as a safety valve, and the like are not required. This is because these functions to be performed are achieved by deformation of the cylinder packing 31 or the like.
[0020]
The cylinder packing 31 is preferably made of a resin having a large elastic deformation, for example, a flat packing made of urethane rubber or butyl rubber. As shown in FIG. 3, the cylinder packing 31 sufficiently absorbs the deformation around the perforated portion of the sealing plate 50 a perforated by the cut nozzle 22, and the pressed gas cylinder packing 31 provides airtightness between the gas pressure adjusting mechanism and the cylinder. Is secured. However, in the event of an abnormality, the airtightness is promptly released by the deformation of the cylinder sheet 60.
[0021]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the gas pressure regulation supply apparatus which concerns on this invention, confidentiality can be reliably ensured at the time of normal use with a simple structure, and when the abnormal temperature of a cylinder rises, the high-pressure gas in a cylinder is released quickly and reliably. can do. In addition, the number of parts and the number of assembling steps are small, and maintenance and maintenance are easy and economical.
[Brief description of the drawings]
FIG. 1 is a view showing a cross section of a gas pressure adjusting and supplying device according to the present invention.
FIG. 2 is a cross-sectional view showing a state in which an abnormal pressure release safety mechanism is operated in the apparatus of FIG.
FIG. 3 is a diagram showing an enlarged cross section around a cylinder base in the apparatus shown in FIG. 1;
FIG. 4 is a diagram showing a cross section of a conventional gas pressure adjusting and supplying device.
[Explanation of symbols]
11: cylinder cover 12: gas discharge hole 13: upper cover 14: adjustment cover 15: lower adjustment cover 16: upper adjustment cover 18: O-ring 22: cut nozzle 23: filter 24: adjustment spring 25: needle valve 26: valve receiver Plate 27: piston spring 29: gas discharge hole 31: cylinder packing 32: cylindrical case 41: lower valve receiver 43: O-ring receiver 44: upper valve receiver 45: gas passage 46: O-ring 47: seal member 48: through hole 50: cylinder 60: cylinder sheet

Claims (4)

ボンベを収容するボンベカバーと、該ボンベカバーと結合されガス吐出孔を備える上部カバーと、該上部カバー内に内蔵され前記ボンベと結合してボンベ内のガスを所定二次圧力に調整してガス吐出孔に導くガス圧力調整機構と、を備えるガス圧力調整供給装置において、
前記ボンベカバーにはそのボンベ座面に所定温度において変形するボンベシートが設けられていることを特徴とするガス圧力調整供給装置。
A cylinder cover for accommodating the cylinder, an upper cover coupled to the cylinder cover and having a gas discharge hole, and a gas built in the upper cover and coupled to the cylinder to adjust the gas in the cylinder to a predetermined secondary pressure, A gas pressure adjusting mechanism that guides the discharge port,
A gas pressure adjusting / supplying device, wherein the cylinder cover is provided with a cylinder seat which is deformed at a predetermined temperature on a cylinder seating surface.
ボンベシートは、可溶合金又は形状記憶樹脂であることを特徴とする請求項1記載のガス圧力調整供給装置。The gas pressure adjusting and supplying device according to claim 1, wherein the cylinder sheet is made of a fusible alloy or a shape memory resin. ガス圧力調整機構は、ボンベパッキンを通して先端部がボンベ口金内に挿し込まれるカットノズル、該カットノズルの後端に設けられたフィルター、フィルターの後端に設けられたニードルバルブ、該ニードルバルブの先端と当接する受け板、ニードルバルブの先端が受け板に当接する力を調節するばねを有し、かつ前記カットノズルの基部、フィルター、ばね及びニードルバルブの基部が筒状ケースにより囲まれているものであることを特徴とする請求項1又は2記載のガス圧力調整供給装置。The gas pressure adjusting mechanism includes a cut nozzle whose tip is inserted into a cylinder cap through a cylinder packing, a filter provided at a rear end of the cut nozzle, a needle valve provided at a rear end of the filter, and a tip of the needle valve. A base plate of the cut nozzle, a filter, a spring, and a base part of the needle valve are surrounded by a cylindrical case. The gas pressure adjusting / supplying device according to claim 1 or 2, wherein: ガス圧力調整機構とボンベとが平パッキンにより気密結合され、その気密結合が温度上昇に伴うボンベシートの変形により解除されるようになっている請求項3記載のガス圧力調整供給装置。4. The gas pressure adjusting / supplying device according to claim 3, wherein the gas pressure adjusting mechanism and the cylinder are hermetically connected by a flat packing, and the hermetic connection is released by deformation of the cylinder sheet accompanying a rise in temperature.
JP2002301352A 2002-10-16 2002-10-16 Gas pressure adjustable feeder Pending JP2004138104A (en)

Priority Applications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008286366A (en) * 2007-05-21 2008-11-27 Enmajor Kk Jetting device
CN108100278A (en) * 2017-12-21 2018-06-01 贵州航天电子科技有限公司 A kind of pressure safety mechanism
EP3317002B1 (en) * 2015-06-30 2023-11-01 Coravin, Inc. Engagement of gas cylinder with gas dispenser

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008286366A (en) * 2007-05-21 2008-11-27 Enmajor Kk Jetting device
EP3317002B1 (en) * 2015-06-30 2023-11-01 Coravin, Inc. Engagement of gas cylinder with gas dispenser
CN108100278A (en) * 2017-12-21 2018-06-01 贵州航天电子科技有限公司 A kind of pressure safety mechanism
CN108100278B (en) * 2017-12-21 2021-04-23 贵州航天电子科技有限公司 Pressure safety mechanism

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