JPS603439Y2 - safety sealing board - Google Patents
safety sealing boardInfo
- Publication number
- JPS603439Y2 JPS603439Y2 JP1982027298U JP2729882U JPS603439Y2 JP S603439 Y2 JPS603439 Y2 JP S603439Y2 JP 1982027298 U JP1982027298 U JP 1982027298U JP 2729882 U JP2729882 U JP 2729882U JP S603439 Y2 JPS603439 Y2 JP S603439Y2
- Authority
- JP
- Japan
- Prior art keywords
- sealing plate
- plate
- recess
- gas
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Actuator (AREA)
Description
【考案の詳細な説明】
本考案は高圧ガスボンベ等に使用される封板の改良に関
腰ボンベ内の異常なガス圧の上昇時において最も安全か
つ確実にガスの排出を行なうとともに、ステンレス等の
離軸材を補助封板として用いることにより、空気中の含
有水分による封板の発錆やピンホールの発生に伴なうボ
ンベ内におけるガスの自然漏出を防止し、しかも製造の
容易性ならびに不良品歩留り率の著るしい向上をはかる
ことを目的とするものである。[Detailed description of the invention] This invention is an improvement of the sealing plate used in high-pressure gas cylinders, etc., to discharge gas in the safest and most reliable manner when the gas pressure inside the cylinder rises abnormally. By using an off-axis material as an auxiliary sealing plate, it is possible to prevent rusting of the sealing plate due to moisture contained in the air and natural leakage of gas inside the cylinder due to the formation of pinholes. The purpose is to significantly improve the yield rate of non-defective products.
たとえば未使用のガスボンベを火中に投下した場合のよ
うに周囲温度の上昇によって内圧が異常に上昇した場合
においては比較的薄肉の封板の部分が外方に膨出した後
急激に裂傷爆発し、ボンベ自体が不特定な方向に飛翔し
たりして著るしく危険である。For example, if an unused gas cylinder is dropped into a fire and the internal pressure rises abnormally due to a rise in ambient temperature, the relatively thin sealing plate bulges outward and then suddenly ruptures and explodes. , the cylinder itself may fly off in unspecified directions, which is extremely dangerous.
そこで従来は上記した危険を回避すべくこれまでに第１
図に示した如く中央に局所的な凹部３を形成した封板２
を用いたガスボンベ１が提案されている。Therefore, in order to avoid the above-mentioned dangers, the first
A sealing plate 2 with a local recess 3 formed in the center as shown in the figure.
A gas cylinder 1 using the gas cylinder 1 has been proposed.
しかし実際にはその封板２の略中央部に形成された擢り
林状の凹部３において、該凹部における開口部面積と該
開口部の底部における封板板厚との相対的な関係寸法が
きわめて厳格であるために、この条件を常に満たした安
全封板の量産的製造をおこなうことは著るしく困難であ
る。However, in reality, in the grove-shaped recess 3 formed approximately at the center of the sealing plate 2, the relative dimension between the opening area of the recess and the thickness of the sealing plate at the bottom of the opening is Because these conditions are extremely strict, it is extremely difficult to mass-produce safety sealing plates that always meet these conditions.
何故ならば小型ガスボンベを基準とした安全封板として
要求される異常な内圧上昇時におけるガス漏洩に必要な
封板の凹部内径寸法は０．８ｍｍφ以下であること、さ
らに該凹部の深さを差し引いた封板の厚み（凹部の厚み
）は０．０８ｗｎ以下であること、の条件を満たさない
限り安全封板として十分に機能し得ないことが実験の結
果明らかになっている。This is because the inner diameter of the concave part of the seal plate required for a safety seal plate based on small gas cylinders to prevent gas leakage in the event of an abnormal increase in internal pressure is 0.8 mmφ or less, and the depth of the concave part is subtracted. Experiments have revealed that the safety sealing plate cannot function satisfactorily unless the thickness of the sealing plate (thickness of the recessed portion) satisfies the following condition: 0.08wn or less.
したがってこの条件を満たす凹部を封板に施こすにあた
ってはきわめて精緻な技術と熟練を要することはいうま
でもなく、これを鍜造成いは切削等いずれの場合におい
ても型の摩耗やドリル或いはバイトの如き刃物の先端の
摩耗の度合い、さらに機械の精度等の点を考慮に入れる
と、その量産的製造はきわめて難かしく、また製造され
た封板が安全封板としての上記した条件を具えているや
否やは単なる目視的な判断によっては判明し得ない結果
不良品の続出は避けられず、そのために著るしく歩留り
が悪い。Therefore, it goes without saying that creating a recess that satisfies this condition in the sealing plate requires extremely sophisticated technology and skill, and in either case, whether it is molding or cutting, there is a risk of wear of the mold or the use of a drill or cutting tool. Considering the degree of wear on the tip of such blades, as well as the precision of the machine, mass production of such blades is extremely difficult, and the manufactured sealing plates meet the above-mentioned conditions as safety sealing plates. As a result, the number of defective products cannot be avoided due to the fact that it cannot be determined by mere visual judgment, and as a result, the yield is extremely low.
そこで本考案者は第２図に示すように、ボンベ１１の開
口部を封止する封板１２において、該封板はボンベの内
外に通ずる通孔１３の径を０．８ｒｒｒＩＩｔφ以下と
する基板１４に対し、該通孔を閉塞するためのステンレ
ス薄板１６を銅ろう付け１５により重合一体化させた構
成の複合封板付ガスボンベをさきに提案したところ安全
封板として最も安定した機能を発揮するところの安全性
の高いガスボンベの量産に成功した。Therefore, as shown in FIG. 2, the present inventor proposed a sealing plate 12 for sealing the opening of the cylinder 11, which includes a substrate 14 in which the diameter of the through hole 13 that communicates with the inside and outside of the cylinder is 0.8rrrIItφ or less. In contrast, we previously proposed a gas cylinder with a composite sealing plate in which a thin stainless steel plate 16 for blocking the through hole was polymerized and integrated with copper brazing 15, and it was found that it exhibited the most stable function as a safety sealing plate. Successfully mass-produced highly safe gas cylinders.
しかしこの提案によれば前記した通孔を閉塞するステン
レス薄板のろう付けに際して水素ガス雰囲気炉を使用し
なければ十分なろう付は効果を得ることができないとい
うことに加え、ろう付は作業中に銅ろうの一部が毛細管
現象により既述した通孔内にはいり込んで通孔の径に影
響を与えることがあるという作業上の問題を有するとい
う点で未だ十分なものではない。However, according to this proposal, a sufficient brazing effect cannot be obtained unless a hydrogen gas atmosphere furnace is used when brazing the thin stainless steel plates that close the above-mentioned through holes. This method is still unsatisfactory in that there is an operational problem in that a portion of the copper solder may enter the aforementioned through hole due to capillary action and affect the diameter of the through hole.
本考案はかかる状況に鑑み、これを十分に解決し、ガス
ボンベ等用の安全封板として十分に機能を発揮すること
ができるようにしたものであって、具体的には、ボンベ
開口面を封止する封板であって、該封板は軟鋼製の主板
と、これに重合されたステンレス等の軟蝕材からなる薄
い補助封板からなり、主板の中央には凹部を有するとと
もに、該凹部の中央には通孔を有し、しかも上記凹部の
形成された面上に前記補助封板を重合一体化させること
により、凹部と薄い補助封板との間に空間部を形成した
ことを特徴とするものである。In view of this situation, the present invention sufficiently solves this problem and enables it to function satisfactorily as a safety sealing plate for gas cylinders, etc. Specifically, it seals the opening surface of the cylinder. The sealing plate is composed of a main plate made of mild steel and a thin auxiliary sealing plate made of a soft erodible material such as stainless steel, which is polymerized to the main plate, and has a recess in the center of the main plate. has a through hole in the center thereof, and furthermore, by polymerizing and integrating the auxiliary sealing plate on the surface where the recess is formed, a space is formed between the recess and the thin auxiliary sealing plate. That is.
以下において本考案の具体的な内容を第３図に示した実
施例をもとにして説明すると、２１はガスボンベ、２２
は該ガスボンベ２１の開口部に溶着封止される封板を示
す。The specific content of the present invention will be explained below based on the embodiment shown in FIG. 3. 21 is a gas cylinder, 22
indicates a sealing plate welded and sealed to the opening of the gas cylinder 21.
封板２２は軟鋼性の主板２３と、これに重合された離軸
材からなる薄い補助封板２６からなる。The sealing plate 22 consists of a main plate 23 made of mild steel and a thin auxiliary sealing plate 26 made of an off-axis material superposed thereon.
主板２３の中央には凹部２４を有するとともに、該凹部
２４の中央にはボンベ２１の内外に通ずる通孔２５を有
し、しかも上記凹部２４の形成された面上には銅ろうづ
け層２７を介して前記補助封板２６が重合一体化されて
ろうづけされている。The main plate 23 has a recess 24 in the center, and a through hole 25 in the center of the recess 24 that communicates with the inside and outside of the cylinder 21. Moreover, a copper brazing layer 27 is formed on the surface where the recess 24 is formed. The auxiliary sealing plate 26 is integrally polymerized and brazed therebetween.
また補助封板２６はたとえばステンレスの如き離軸材金
属薄板又は離軸処理を施こした金属薄板の使用が考えら
れる。Further, as the auxiliary sealing plate 26, it is possible to use a thin metal plate made of an off-axis material such as stainless steel, or a thin metal plate subjected to an off-axis treatment.
しかもボンベ２１内のガス圧が異常に上昇した際には部
分的に破砕されて安全性が確保できる程度の厚みのもの
を選定して使用するものとし、これを前記主板２３の凹
部２４の形成された面上に重合一体化させることにより
、凹部２４と補助封板２６との間に空間部２８を形成す
るようにしたものである。Moreover, when the gas pressure inside the cylinder 21 rises abnormally, a cylinder 21 with a thickness that can be partially crushed to ensure safety is selected and used, and this is used to form the recess 24 of the main plate 23 A space 28 is formed between the concave portion 24 and the auxiliary sealing plate 26 by polymerizing and integrating the two surfaces.
尚、主板２３と補助封板２６とを重合させる手段として
は、両者を水素ガス炉中において銅ろうづけするのが最
も好ましく、重合したステンレス等の補助封板の酸化が
おこらず、しかも銅ろうの流れが好適である。As a means of polymerizing the main plate 23 and the auxiliary sealing plate 26, it is most preferable to copper-braze both in a hydrogen gas furnace, so that oxidation of the polymerized auxiliary sealing plate, such as stainless steel, does not occur, and the copper soldering The flow is suitable.
上記した構成において、これをガスボンベ２１の開口部
に溶接して封板として機能させた場合には、ボンベ内の
ガス圧が異常に昇圧した際にガスは通孔２５から空間部
２８に臨んだ薄い補助封板；２６に作用し、一定の内圧
に達した時点で上記した薄い補助封板２６を破封させる
。In the above configuration, if this is welded to the opening of the gas cylinder 21 to function as a sealing plate, when the gas pressure inside the cylinder increases abnormally, the gas will enter the space 28 through the through hole 25. It acts on the thin auxiliary sealing plate 26 and breaks the thin auxiliary sealing plate 26 when a certain internal pressure is reached.
尚補助封板２６の破封は空間部２８に面した部分のみに
止まり、それ以上不必要に破られることがない。Note that the auxiliary sealing plate 26 is only broken in the portion facing the space 28, and is not unnecessarily broken any further.
７ 何故ならば補助封板２６を破封した直後においてボ
ンベ２１内に存するガスは主板２３の通孔２５を通過し
なければならず、しかも該通孔２５の大きさはガスの流
出に際してポンベ２１自体を不特定な方向へ飛翔させる
ことのない程度の推力しか発生しない様に調整されてい
るために、噴出ガスの流出量が著るしく規制されながら
徐々に排気されるからである。7 This is because immediately after the auxiliary sealing plate 26 is broken, the gas existing in the cylinder 21 must pass through the through hole 25 of the main plate 23, and the size of the through hole 25 is such that the gas remains in the cylinder 21 when the gas flows out. This is because the thrust is adjusted so that only enough thrust is generated to prevent the jet itself from flying in an unspecified direction, so the amount of outflow of the ejected gas is severely regulated and gradually exhausted.
実験例 １
軟鋼性の主板には、その中央部に直径上９ｍ、／汎の凹
部を形成するとともに、該凹部の中央部に直径０．３２
ｍ／ｍの通孔を穿設し、さらに該主板の凹部を形成した
面上に０．７５７７Ｌ／ｍ厚の標準的ステンレス薄板で
形成した補助封板を銅ろう付けにより重合一体化させて
安全封板を構威し、これを高圧炭酸ガスボンベに適用し
て種々の実験をおこなった結果、特にガスボンベを加熱
させた場合には確実に補助封板の上記主板における凹部
に対応した部分が破封されたが、その後の内容ガス噴出
量は小さく、ボンベが飛翔するようなことはなかった。Experimental Example 1 A concave portion with a diameter of 9 m in diameter was formed in the center of the main plate made of mild steel, and a concave portion with a diameter of 0.32 m in the central portion of the concave portion was formed.
A through hole of m/m is drilled, and an auxiliary sealing plate made of a standard stainless steel thin plate with a thickness of 0.7577 L/m is polymerized and integrated with copper brazing on the surface of the main plate where the recess is formed, making it safe. As a result of conducting various experiments using a sealing plate and applying it to high-pressure carbon dioxide gas cylinders, we found that the part of the auxiliary sealing plate corresponding to the recess in the main plate breaks the seal, especially when the gas cylinder is heated. However, the subsequent ejection of the gas content was small and the cylinder did not fly off.
実験例 ２
軟鋼製の主板には、その中央部に直径１．３７７Ｌ／九
の凹部を形成するとともに、該凹部の中央部に直径０．
１２ｍ、７ｍ、の通孔を穿設し、さらに該主板の凹部を
形成した面上に０．０４ｍ／ｍ厚のステンレス薄板で形
成した補助封板を銅ろう付けにより重合一体化させて安
全封板を構威し、これを高圧炭酸ガスボンベに適用して
種々の実験をおこなった結果、ガスボンベを加熱させた
場合には内容ガスの一定量の昇圧時に確実に補助封板の
上記主板における凹部に対応した部分が破封されたか、
その後の内容ガス噴出量は小さく、ボンベが飛翔するま
でには至らなかった。Experimental Example 2 A concave portion with a diameter of 1.377L/9 was formed in the center of the main plate made of mild steel, and a concave portion with a diameter of 0.9L was formed in the center of the concave portion.
Through holes of 12m and 7m are drilled, and an auxiliary sealing plate made of a thin stainless steel plate with a thickness of 0.04m/m is polymerized and integrated with copper brazing on the surface of the main plate where the concave portion is formed to create a safety seal. As a result of conducting various experiments using this plate and applying it to high-pressure carbon dioxide gas cylinders, we found that when the gas cylinder is heated, when the pressure of the content gas rises to a certain level, the auxiliary sealing plate reliably fills the recess in the main plate. Was the corresponding part broken?
After that, the amount of gas ejected was small and did not cause the cylinder to fly off.
また同一構成の安全封板を施こした高圧炭酸ガスボンベ
を約３年６ケ月問屋外放置したが、内容ガスの自然放出
は全くなかった。In addition, a high-pressure carbon dioxide cylinder with the same safety seal was left outdoors for approximately 3 years and 6 months, but no spontaneous release of the gas content occurred.
上記１・２の実施例をはじめとする種々の実験結果によ
れば、
上記の範囲内であれば本考案の予期する効果が得られる
ことが明確となった。According to various experimental results including Examples 1 and 2 above, it has become clear that the expected effects of the present invention can be obtained within the above range.
本考案は上記したように封板自体が主板とステンレス等
の離軸材或いは無軸処理を施こした薄い補助封板からな
り、主板の中央には凹部を有するとともに該凹部の中央
には通孔を有するので、この凹部の形成された面上に補
助封板を重合一体化させた場合には前記主板と補助封板
との間に空間部２８が形成される結果、主板に対する補
助封板のろうづけ作業をおこなう際に上記空間部の存在
により銅ろうの毛細管現象による通孔内への侵入を確実
に防止することができる。As described above, in the present invention, the sealing plate itself consists of a main plate and a thin auxiliary sealing plate made of an off-axis material such as stainless steel or non-axially treated, and has a recess in the center of the main plate and a through hole in the center of the recess. Since the auxiliary sealing plate has a hole, when the auxiliary sealing plate is superimposed and integrated on the surface where the recessed portion is formed, a space 28 is formed between the main plate and the auxiliary sealing plate, and as a result, the auxiliary sealing plate with respect to the main plate When performing the soldering work, the presence of the space can reliably prevent copper solder from entering the through hole due to capillary action.
また上記のろうづけ作業についても一般の水素ガス雰囲
気中における作業で十分なろうづけ効果を得ることがで
き、しかも主板がガスボンベ２１と同質材の軟鋼板を使
用しているのでボンベ本体への溶接に際し、きわめて溶
接しやすく溶接の完全を期すことができる。Also, regarding the above-mentioned brazing work, a sufficient brazing effect can be obtained by working in a general hydrogen gas atmosphere, and since the main plate is made of a mild steel plate made of the same material as the gas cylinder 21, welding to the cylinder body is possible. It is extremely easy to weld and can ensure perfect welding.
また上記の構成による場合には主板に対する通孔の孔径
が正確に保持できることと、補助封板の厚みを±２ミク
ロン以内という高精度に加工することができるために従
来品に比して安全封板として最も信頼度の高い機能を有
する封板を量産することができる等種々の有益な効果を
奏する。In addition, with the above configuration, the diameter of the through hole relative to the main plate can be maintained accurately, and the thickness of the auxiliary sealing plate can be processed with high precision within ±2 microns, making it safer than conventional products. Various beneficial effects can be achieved, such as being able to mass-produce a sealing plate that has the most reliable function as a plate.
第１図は従来の安全封板付ガスボンベの要部拡大断面図
、第２図は本考案者がさきに提案した安全封板付ガスボ
ンベの要部拡大断面図、第３図は本考案の一実施例であ
るところのガスボンベ用安全封板の要部拡大断面図であ
る。
２１・・・・・・ガスボンベ、２２・・・・・・封板、
２３・・・・・・主板、２４・・・・・・凹部、２５・
・・・・・通孔、２６・・・・・・補助封板、２７・・
・・・・ろうづけ層、２８・・・・・・空間部。Figure 1 is an enlarged cross-sectional view of the main parts of a conventional gas cylinder with a safety seal, Figure 2 is an enlarged cross-sectional view of the main parts of a gas cylinder with a safety seal that the present inventor proposed earlier, and Figure 3 is an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view of a main part of a safety sealing plate for a gas cylinder. 21...Gas cylinder, 22...Sealing plate,
23...Main plate, 24...Recess, 25.
...Through hole, 26...Auxiliary sealing plate, 27...
...Brazing layer, 28...Space part.
Claims (1)
製の主板と、これに重合されたステンレス等の離軸材又
は離軸処理を施こした金属薄板からなる補助封板からな
り、主板の中央には凹部を有するとともに、該凹部の中
央には通孔を有し、しかも上記凹部の形成された面上に
前記補助封板を重合一体化させることにより、凹部と薄
い補助封板との間に空間部を形成したことを特徴とする
安全封板。A sealing plate that seals the opening surface of a cylinder, and the sealing plate includes a main plate made of mild steel, and an auxiliary sealing plate made of an off-axis material such as stainless steel or a thin metal plate that has been subjected to an off-axis treatment. The main plate has a recess in the center and a through hole in the center of the recess, and the auxiliary sealing plate is integrated with the recess on the surface where the recess is formed, so that the recess and the thin A safety sealing plate characterized in that a space is formed between the auxiliary sealing plate and the auxiliary sealing plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982027298U JPS603439Y2 (en) | 1982-02-26 | 1982-02-26 | safety sealing board |
| GB8234754A GB2112123B (en) | 1981-12-11 | 1982-12-06 | Pressurized-fluid cartridge and safety closure therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982027298U JPS603439Y2 (en) | 1982-02-26 | 1982-02-26 | safety sealing board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58130199U JPS58130199U (en) | 1983-09-02 |
| JPS603439Y2 true JPS603439Y2 (en) | 1985-01-30 |
Family
ID=30039210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982027298U Expired JPS603439Y2 (en) | 1981-12-11 | 1982-02-26 | safety sealing board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS603439Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6111100U (en) * | 1984-06-26 | 1986-01-22 | 宮田工業株式会社 | High pressure gas cylinder with overpressure gas release sealing plate |
| JPH0416077Y2 (en) * | 1985-11-15 | 1992-04-10 | ||
| JP2008286366A (en) * | 2007-05-21 | 2008-11-27 | Enmajor Kk | Jetting device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5840400U (en) * | 1981-09-11 | 1983-03-16 | 毛利 唯志 | Tools for processing thermoplastic synthetic resin foam |
-
1982
- 1982-02-26 JP JP1982027298U patent/JPS603439Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5840400U (en) * | 1981-09-11 | 1983-03-16 | 毛利 唯志 | Tools for processing thermoplastic synthetic resin foam |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58130199U (en) | 1983-09-02 |
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