JPS6334360B2 - - Google Patents
Info
- Publication number
- JPS6334360B2 JPS6334360B2 JP55098705A JP9870580A JPS6334360B2 JP S6334360 B2 JPS6334360 B2 JP S6334360B2 JP 55098705 A JP55098705 A JP 55098705A JP 9870580 A JP9870580 A JP 9870580A JP S6334360 B2 JPS6334360 B2 JP S6334360B2
- Authority
- JP
- Japan
- Prior art keywords
- recess
- sealing plate
- gas pressure
- crack
- 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
- 238000007789 sealing Methods 0.000 claims description 23
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 10
- 230000000977 initiatory effect Effects 0.000 description 6
- 238000007689 inspection Methods 0.000 description 5
- 238000007706 flame test Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/06—Closures, e.g. cap, breakable member
-
- 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
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/068—Special properties of materials for vessel walls
- F17C2203/069—Break point in the wall
-
- 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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/04—Reducing risks and environmental impact
- F17C2260/042—Reducing risk of explosion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
【発明の詳細な説明】
本発明は小型ボンベの内部ガス圧力をその揺動
力として放出させる安全封板に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a safety sealing plate that releases the internal gas pressure of a small cylinder as its swinging force.
頂部の外面に点状の局所的な凹所を設け、内圧
異常上昇の際この凹所の底に亀裂を発生させて内
部ガスを徐々に流出させるようにした安全封板
は、本願出願人によつて既に実施されている。こ
の種の封板は確実に作動して安全性を保つ上で大
変好ましい。然しながら、封板外径が12mm前後と
小さい上、頂部の厚さが約0.3mmで、そこに配置
される凹所の深さが約0.2mm、更に亀裂発生圧力
に重大な影響を及ぼす凹所の底と頂部下面との
間、即ち底厚が約0.1mmとなつており、この底厚
を一定に保つための寸法菅理が甚だ厄介な作業と
なつている。 The applicant proposed a safety sealing plate in which point-like local recesses are provided on the outer surface of the top part, and cracks are generated at the bottom of the recesses when the internal pressure rises abnormally, allowing the internal gas to gradually flow out. Therefore, it has already been implemented. This type of sealing plate is highly desirable because it operates reliably and maintains safety. However, the outer diameter of the sealing plate is small at around 12 mm, the thickness of the top is approximately 0.3 mm, and the depth of the recess placed there is approximately 0.2 mm, and the recess has a significant effect on the crack initiation pressure. The distance between the bottom and the lower surface of the top, that is, the bottom thickness, is about 0.1 mm, and the dimensional cutting to keep this bottom thickness constant is an extremely troublesome task.
また、製鉄メーカーで出荷されるロツトごとの
品質は必ずしも均一に保たれてはいない。そのた
め、寸法だけ一定に保つても、亀裂発生圧力を一
定に保てない。 Furthermore, the quality of each lot shipped by a steel manufacturer is not necessarily uniform. Therefore, even if the dimensions are kept constant, the crack initiation pressure cannot be kept constant.
そこで、従来は総称的に亀裂発生試験と言つてい
るそれぞれ厳格な寸法検査、水圧試験及び火焔試
験を行つている。Therefore, in the past, strict dimensional inspections, water pressure tests, and flame tests, collectively referred to as crack initiation tests, have been conducted.
寸法試験は前記の通り封板の板厚、凹所の深
さ、凹所の底面と頂部下面の間の各寸法の検査
で、全ての封板につき行われている。 As mentioned above, the dimensional test is carried out on all sealing plates by inspecting the thickness of the sealing plate, the depth of the recess, and the dimensions between the bottom surface of the recess and the lower surface of the top.
水圧試験は封板に対し素材のロツトごとに行わ
れるもので、所定の圧力で封板に亀裂が発生する
かどうかを調べる。 Hydrostatic tests are conducted on sealing plates for each lot of material, and it is checked to see if cracks will occur in the sealing plate under a specified pressure.
火焔試験は実際にガスの充填されたボンベを加
熱して封板の亀裂発生状態を調べるものである。 The flame test is a test in which a cylinder filled with gas is actually heated to examine the occurrence of cracks in the sealing plate.
また、従来の安全封板では、凹所の底部に発生
した亀裂が底部周辺に直角に進み、そこでの肉圧
の増大により止まるように設計されている。しか
しながら、既記の通り、封板の素材の品質が完全
には均一でないため、厳格な試験にも拘らず、偶
発的に規定圧で破断しない封板がボンベに取り付
けられることもある。この場合、ボンベ内圧が設
計圧より高くなるので、底部に発生した亀裂が底
部周辺に到達してからこの周辺に沿つて「の」字
状に進み、遂に全周辺に及んで底部が吹き抜ける
ことがある。こうなると、多量のガスが噴出する
ので、反動でボンベが飛翔したりして危険であ
る。 In addition, conventional safety sealing plates are designed so that cracks that occur at the bottom of the recess propagate perpendicularly around the bottom and are stopped by an increase in the wall pressure there. However, as mentioned above, the quality of the sealing plate material is not completely uniform, so despite rigorous testing, sometimes sealing plates that do not break at the specified pressure are accidentally attached to cylinders. In this case, since the internal pressure of the cylinder is higher than the design pressure, the cracks that occur at the bottom reach the periphery of the bottom, propagate along this periphery in a "2" shape, and finally reach the entire periphery, causing the bottom to blow through. be. If this happens, a large amount of gas will be blown out, and the cylinder may fly off due to the recoil, which is dangerous.
本発明は、従来の過酷なまでの亀裂発生試験を
緩和すると共に、それに伴う封板の破断規定圧の
不均一化によるボンベ飛翔の危険性の発生という
問題を、内部ガス圧力をボンベ軸線上で外部へ放
出させず、ボンベにモーメントを作用するような
方向へ放出させてボンベを揺動即ち首振り又は回
転させるようにし、これによりガス放出量の範囲
を広くして、解決したものである。 The present invention alleviates the conventional severe crack initiation test, and also solves the problem of the risk of the cylinder flying off due to the unevenness of the sealing plate rupture pressure, by adjusting the internal gas pressure on the cylinder axis. This problem was solved by not discharging the gas to the outside, but by discharging it in a direction that exerts a moment on the cylinder, causing the cylinder to swing or rotate, thereby widening the range of the amount of gas released.
亀裂発生試験の緩和を具体的に述べれば次の通
りである。 The relaxation of the crack initiation test is specifically described as follows.
寸法検査は従来の全数検査から抜き取り検査と
なり、寸法の許容誤差も拡大した。 Dimensional inspections have changed from conventional 100% inspections to sampling inspections, and dimensional tolerances have also expanded.
水圧検査も従来ほど厳格でなくてもよくなつ
た。 Water pressure inspections no longer need to be as strict as they used to be.
火炎試験は省略できた。 The flame test could be omitted.
内圧が異常に上昇すると頂部が上方へ湾曲し、
凹部の底面も上方へ湾曲して予定部に剪断及び引
張り応力が集中して、遂に亀裂が発生し、ボンベ
内ガスはこの亀裂を通つて徐々に放出される。こ
の際ボンベにモーメントが作用するので、ボンベ
は揺動即ち首振りや回転をするが、ボンベの内部
ガス圧力が軸線方向の推力として作用しないので
飛翔したりせず、勿論破裂は完全に防止される。 When the internal pressure rises abnormally, the top curves upward,
The bottom surface of the recess also curves upward, and shearing and tensile stress concentrates on the predetermined portion, eventually causing a crack, and the gas inside the cylinder is gradually released through this crack. At this time, a moment is applied to the cylinder, so the cylinder swings or rotates, but since the internal gas pressure of the cylinder does not act as a thrust in the axial direction, it does not fly away, and of course, rupture is completely prevented. Ru.
以下に本考案の実施の態様を図面につき詳述す
る。なお、図面中同一符号は同一もしくは相応部
分を示す。 Embodiments of the present invention will be described in detail below with reference to the drawings. Note that the same reference numerals in the drawings indicate the same or corresponding parts.
第１図、第１1図、第２図及び第３図は一つの
実施例で、第３図が亀裂発生状態を示す。１は頂
部、２は上面、３は下面である。４は環状又は欠
環状の脚でボンベＢの開口部Ｏ内に挿入され、封
板が脱落するのを防ぐためのものである。５はガ
ス充填間隙形成用突起でかしめ又は溶接によつて
変形する。６は局所的な凹部で上面２から下面３
に向けて形成され、倒円錐台状となつている。勿
論これは倒角錐台状でもよい。 FIGS. 1, 11 , 2, and 3 are examples, and FIG. 3 shows a state in which a crack has occurred. 1 is the top, 2 is the top surface, and 3 is the bottom surface. Numeral 4 is a ring-shaped or annular-shaped leg which is inserted into the opening O of the cylinder B to prevent the sealing plate from falling off. Reference numeral 5 denotes a projection for forming a gas filling gap, which is deformed by caulking or welding. 6 is a local recess from the upper surface 2 to the lower surface 3
It is shaped like an inverted truncated cone. Of course, this may also be in the form of an oblique truncated pyramid.
この凹部６の底面６ａの一側縁部に亀裂予定部
７を設ける。この予定部７は、ボンベＢの内圧が
異常に高くなつたとき亀裂７′を生じて、内部ガ
ス圧力を徐々に而もボンベＢに対する揺動力とし
て放出させるためのものである。図示の例では予
定部７が鋭い隅角部となつて底部６ａの外周のほ
ぼ半分に及び、他は曲面部８となつている。 A planned crack portion 7 is provided at one side edge of the bottom surface 6a of the recess 6. This predetermined portion 7 is intended to cause a crack 7' to occur when the internal pressure of the cylinder B becomes abnormally high, and to gradually release the internal gas pressure as a rocking force against the cylinder B. In the illustrated example, the planned portion 7 is a sharp corner portion extending approximately half of the outer circumference of the bottom portion 6a, and the remaining portion is a curved portion 8.
この安全封板をボンベＢに取り付けた状態で内
部ガス圧が異常に上昇した場合は、頂部１が上方
へ湾曲し、底面６ａも上方へ湾曲して予定部７に
剪断及び引張の応力が集中し、遂に亀裂７′を発
生してガスが徐々に流出する。この亀裂７′は、
封板の金属組織にもよるが、概して錐面に平行す
る方向へ開き、ボンベＢにはモーメントが働いて
揺動し、破裂や飛翔はしない。 If the internal gas pressure rises abnormally with this safety sealing plate attached to the cylinder B, the top part 1 will curve upward, the bottom face 6a will also curve upward, and shearing and tensile stress will be concentrated on the planned part 7. Finally, a crack 7' is generated and the gas gradually flows out. This crack 7' is
Although it depends on the metallographic structure of the sealing plate, it generally opens in a direction parallel to the conical surface, and a moment acts on the cylinder B, causing it to swing and not bursting or flying off.
第４図、第４1図及び第５図は別の実施例で、
亀裂予定部１７が凹部１６に底面１６ａから下面
３に向けて形成した切欠となつたものである。こ
の場合亀裂は一層確実に予定部１７に発生する。 FIG. 4, FIG. 41 and FIG. 5 are different embodiments,
The expected crack portion 17 is a notch formed in the recess 16 from the bottom surface 16a toward the lower surface 3. In this case, cracks will more certainly occur in the planned portion 17.
第６図、第６1図及び第７図は更に別の態様を
示してあり、凹部２６の底面２６ａが傾斜してお
り、亀裂予定部２７がこの傾斜の下側部分に位置
したものである。即ちここでは予定部２７と下面
３との間の板厚が上側部分より薄くなつており、
確実な破断が約束される。また加工も容易であ
る。 6, 61 , and 7 show still another embodiment, in which the bottom surface 26a of the recess 26 is inclined, and the expected crack portion 27 is located at the lower part of this inclination. . That is, here, the thickness of the plate between the planned portion 27 and the lower surface 3 is thinner than that of the upper portion.
Reliable breakage is guaranteed. It is also easy to process.
第８図、第８1図及び第９図は更に別の態様を
示してある。この場合は頂部１１の板厚が大なも
のに適しており、凹部６の底面６ａの向かう下面
１３がこの凹部６に対向して設けた凹部３６の底
面となつたものである。凹部６の深さを頂部１１
から深くしないので、凹部６の底面６ａの亀裂予
定部からの亀裂発生範囲を限定することができる
ほか、過圧発生時の破断も確実にする。 FIGS. 8, 81 and 9 show further embodiments. In this case, the top portion 11 is suitable for a large plate thickness, and the lower surface 13 of the recess 6 toward which the bottom surface 6a faces becomes the bottom surface of the recess 36 provided opposite to the recess 6. The depth of the recess 6 is set to the top 11.
Since the crack is not deep from the bottom surface 6a of the recess 6, it is possible to limit the range of crack occurrence from the expected crack portion of the bottom surface 6a of the recess 6, and also ensure that the crack will not break when overpressure occurs.
第１０図と第１０1図及び第１１図と第１１1図
はそれぞれ別の態様を示してあり、何れも凹部１
６や２６に対向して凹部３６を形成し、それらの
底面が下面１３となつたものである。前記と同様
に亀裂予定部からの亀裂発生範囲を限定すること
及び過圧時の破断の確実性を保証する。 FIGS. 10 and 101 and FIGS. 11 and 111 respectively show different embodiments, and each shows a recess 1.
A recess 36 is formed opposite to 6 and 26, and the bottom surface thereof becomes the lower surface 13. Similarly to the above, it is possible to limit the range of crack generation from the expected crack area and ensure certainty of rupture in the event of overpressure.
本発明によれば頂部に設けた局所的な凹部の底
面の一側縁部に、ボンベ内の異常ガス圧発生時の
ガス放出推力をボンベの揺動力に変換するための
亀裂予定部を設けたので、ガス放出圧力に多少の
差があつても封板底部が吹き抜けることがなく、
従つてガス放出の際にボンベは揺動するだけで飛
翔することはなく、勿論破裂も起こさず、至つて
安全であり、そのため、従来不可欠であつた過酷
なまでの亀裂発生試験を緩和でき、更にはその試
験の一部を省略することもできる特徴がある。 According to the present invention, a planned crack portion is provided on one side edge of the bottom surface of the local recess provided at the top for converting the gas release thrust when abnormal gas pressure occurs in the cylinder into rocking force of the cylinder. Therefore, even if there is a slight difference in gas release pressure, the bottom of the sealing plate will not blow through.
Therefore, when gas is released, the cylinder only shakes and does not fly away, and of course it does not explode, making it extremely safe.As a result, the harsh crack initiation tests that were conventionally indispensable can be alleviated. Furthermore, it has the feature that a part of the test can be omitted.
第１図は本発明に係る安全封板の具体例を示す
切断側面図、第１1図はその要部の拡大断面図、
第２図は第１図の平面図、第３図はその亀裂発生
状態の切断側面図、第４図は同封板の別の態様の
切断側面図、第４1図はその要部の拡大断面図、
第５図は第４図の平面図、第６図は更に別の態様
の切断側面図、第６1図はその要部の拡大断面図、
第７図は第６図の平面図、第８図は更に別の態様
の切断側面図、第８1図はその要部の拡大断面図、
第９図は第８図の底面図、第１０図は更に別の態
様の切断側面図、第１０1図はその要部の拡大断
面図、第１１図は更に別の態様の切断側面図、第
１１1図はその要部の拡大断面図である。
１，１１……頂部、２，１２……上面、３，１
３……下面、６，１６，２６……局所的な凹部、
６ａ，１６ａ，２６ａ……底面、７，１７，２７
……亀裂予定部、７′……亀裂、８……曲面部。
Fig. 1 is a cutaway side view showing a specific example of the safety sealing plate according to the present invention, Fig. 11 is an enlarged sectional view of the main part thereof,
Fig. 2 is a plan view of Fig. 1, Fig. 3 is a cutaway side view of the state in which cracks have occurred, Fig. 4 is a cutaway side view of another embodiment of the enclosing plate, and Fig. 41 is an enlarged cross-section of its essential parts. figure,
5 is a plan view of FIG. 4, FIG. 6 is a cutaway side view of yet another embodiment, and FIG. 61 is an enlarged sectional view of the main parts thereof;
FIG. 7 is a plan view of FIG. 6, FIG. 8 is a cutaway side view of yet another embodiment, and FIG. 81 is an enlarged sectional view of the main part thereof.
9 is a bottom view of FIG. 8, FIG. 10 is a cutaway side view of yet another embodiment, FIG. 101 is an enlarged sectional view of the main part thereof, and FIG. FIG. 111 is an enlarged sectional view of the main part. 1, 11... Top, 2, 12... Top surface, 3, 1
3... lower surface, 6, 16, 26... local recess,
6a, 16a, 26a...bottom, 7, 17, 27
... Crack planned portion, 7'... Crack, 8... Curved surface portion.
Claims (1)
倒円又は角錐台状凹部の底面の一側縁部にボンベ
内の異常ガス圧発生時の内部ガス圧力をボンベの
揺動力として放出するための亀裂予定部を設けた
ことを特徴とする小型ボンベの内部ガス圧力をそ
の揺動力として放出させる安全封板。 ２ 亀裂予定部がそれを予定されていない部分に
おける曲面部に対し鋭い隅角部となつている特許
請求の範囲第１項記載の小型ボンベの内部ガス圧
力をその揺動力として放出させる安全封板。 ３ 亀裂予定部が凹部底面から既記他面に向けて
形成した切欠である特許請求の範囲第１項記載の
小型ボンベの内部ガス圧力をその揺動力として放
出させる安全封板。 ４ 凹部底面が傾斜しており、亀裂予定部がその
傾斜の下側部分に位置している特許請求の範囲第
２項記載の小型ボンベの内部ガス圧力をその揺動
力として放出させる安全封板。 ５ 他面がこの凹部に対抗して設けた凹部の底面
である特許請求の範囲第１項記載の小型ボンベの
内部ガス圧力をその揺動力として放出させる安全
封板。[Claims] 1. Internal gas pressure when abnormal gas pressure occurs in the cylinder is applied to one side edge of the bottom surface of a local inverted circular or truncated pyramid-shaped recess formed from the top surface to the other surface. 1. A safety sealing plate for releasing internal gas pressure of a small cylinder as a swinging force, characterized in that it is provided with a cracked portion for releasing it as a swinging force. 2. A safety sealing plate that releases the internal gas pressure of a small cylinder as a swinging force according to claim 1, in which the expected crack portion is a sharp corner with respect to a curved surface portion in a portion where no crack is expected. . 3. A safety sealing plate for releasing the internal gas pressure of a small cylinder as a rocking force according to claim 1, wherein the expected crack portion is a notch formed from the bottom surface of the recess toward the other surface. 4. A safety sealing plate that releases the internal gas pressure of a small cylinder as a rocking force according to claim 2, wherein the bottom surface of the recess is inclined and the expected crack portion is located at the lower part of the slope. 5. A safety sealing plate for releasing the internal gas pressure of a small cylinder as a rocking force according to claim 1, wherein the other surface is the bottom surface of a recess provided in opposition to the recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9870580A JPS5725600A (en) | 1980-07-21 | 1980-07-21 | Gas bomb sealer plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9870580A JPS5725600A (en) | 1980-07-21 | 1980-07-21 | Gas bomb sealer plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5725600A JPS5725600A (en) | 1982-02-10 |
| JPS6334360B2 true JPS6334360B2 (en) | 1988-07-08 |
Family
ID=14226914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9870580A Granted JPS5725600A (en) | 1980-07-21 | 1980-07-21 | Gas bomb sealer plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5725600A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2780257B2 (en) * | 1987-05-07 | 1998-07-30 | 株式会社デンソー | Battery-powered non-contact ignition device having engine reverse rotation prevention configuration |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0416077Y2 (en) * | 1985-11-15 | 1992-04-10 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5221861B2 (en) * | 1972-03-25 | 1977-06-14 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5548406Y2 (en) * | 1975-08-02 | 1980-11-12 |
-
1980
- 1980-07-21 JP JP9870580A patent/JPS5725600A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5221861B2 (en) * | 1972-03-25 | 1977-06-14 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2780257B2 (en) * | 1987-05-07 | 1998-07-30 | 株式会社デンソー | Battery-powered non-contact ignition device having engine reverse rotation prevention configuration |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5725600A (en) | 1982-02-10 |
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