JPS62444B2 - - Google Patents
Info
- Publication number
- JPS62444B2 JPS62444B2 JP3041877A JP3041877A JPS62444B2 JP S62444 B2 JPS62444 B2 JP S62444B2 JP 3041877 A JP3041877 A JP 3041877A JP 3041877 A JP3041877 A JP 3041877A JP S62444 B2 JPS62444 B2 JP S62444B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- pressure vessel
- liquid
- gas
- diaphragm bag
- 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
- 239000007788 liquid Substances 0.000 claims description 23
- 238000012360 testing method Methods 0.000 claims description 16
- 238000010998 test method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Description
【発明の詳細な説明】
この発明は圧力容器を気密試験する方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for testing pressure vessels for tightness.
従来は、圧力容器の気密試験は比較的圧力の低
いものから300Kg／cm2Ｇ程度の圧力迄は空気又は
窒素ガスを圧縮機やポンプ又は窒素ボンベ或いは
タンクローリー車より直接圧力容器へ接続して供
給し、これを加圧して行なつていた。 Conventionally, airtightness tests for pressure vessels have been conducted from relatively low pressures to pressures of around 300 kg/cm 2 G by supplying air or nitrogen gas from a compressor, pump, nitrogen cylinder, or tank truck directly to the pressure vessel. This was done under pressure.
しかしこれらの方法では圧縮機や窒素ボンベ等
の能力より気密試験圧力は大略300〜400Kg／cm2Ｇ
が限度でありしかもこの様な高圧に気体を加圧す
ることは万一の亀裂破損事故の際は気体膨張によ
り、その被害大なることを考えれば液体に比べ気
体の場合は非常に危険なものとなつている。この
発明はこのような危険のない気密試験の方法を提
案することを目的とする。 However, with these methods, the airtight test pressure is approximately 300 to 400 kg/cm 2 G due to the capacity of the compressor, nitrogen cylinder, etc.
is the limit, and if the gas is pressurized to such a high pressure, in the unlikely event of a crack breakage, the gas will expand and cause more damage, so gases are much more dangerous than liquids. It's summery. The purpose of this invention is to propose a method for airtightness testing that is free from such risks.
この発明の実施に際しては圧力容器内に隔膜袋
例えばキヤンバスにゴムを内張りしたもの又はナ
イロン、ビニール、布、ゴム等で適当に強度を有
し、しかも水漏れしないもので袋状に作られた隔
膜で内容積も圧力容器の内容積に比べ十分に余裕
のある寸法を有し自由に変形可能なものを、先ず
圧力容器に挿入し次に圧力容器と隔膜袋との空間
に気体を注入しその圧力容器の気密試験圧力によ
り決定するが通常数気圧になる迄加圧しておく。
その後に隔膜袋内部にポンプ等により水等の液体
を注入する。この事によりしぼんでいた隔膜袋は
液体を注いだ丈内容積を増す。この事は必然的に
圧力容器内面の気体の圧力は隔膜袋内の液体の圧
力と同じものとなり水圧ポンプの加圧能力迄の気
密試験が可能となる。しかも圧力容器内に占める
気体の容積が圧縮され比較的少さなものとなり万
一の事故の際にもその膨張時の体積が最初に数気
圧であるものに対応することとなり被害が少ない
ものとなる。 When carrying out this invention, a diaphragm bag, such as a canvas lined with rubber, or a bag-shaped diaphragm made of nylon, vinyl, cloth, rubber, etc., which has appropriate strength and does not leak water, is used in the pressure vessel. First, a freely deformable product with a sufficiently large internal volume compared to the internal volume of the pressure vessel is inserted into the pressure vessel, and then gas is injected into the space between the pressure vessel and the diaphragm bag. Pressurize the pressure vessel until it reaches several atmospheres, which is determined by the airtightness test pressure of the pressure vessel.
Thereafter, a liquid such as water is injected into the diaphragm bag using a pump or the like. This causes the deflated diaphragm bag to increase its internal volume into which liquid is poured. This necessarily means that the pressure of the gas inside the pressure vessel is the same as the pressure of the liquid inside the diaphragm bag, making it possible to perform an airtight test up to the pressurizing capacity of the water pressure pump. In addition, the volume of gas occupying the pressure vessel is compressed and becomes relatively small, so even in the event of an accident, the volume when expanded corresponds to the initial several atmospheres, so there is less damage. Become.
また、圧力容器内と隔膜袋内とは同一の圧力と
なるので隔膜袋は水圧ポンプの加圧時の衝撃圧程
度を考慮すればよく比較的簡単な構造でよい。 Further, since the pressure inside the pressure vessel and the inside of the diaphragm bag are the same, the diaphragm bag may have a relatively simple structure as long as the degree of impact pressure at the time of pressurization by the water pressure pump is taken into account.
また降圧も隔膜内の液体を抜けば圧力容器内の
気体圧力は初期の数気圧の圧力迄下がり容易に降
圧が可能である。 In addition, when the liquid in the diaphragm is removed, the gas pressure in the pressure vessel drops to the initial pressure of several atmospheres, and the pressure can be easily lowered.
以上の如く本発明により水圧ポンプの能力たる
数千Kg／cm2迄、気密試験をすることが可能となり
しかも窒素ガス等の気体の消費量も大巾に節約出
来る。 As described above, according to the present invention, it is possible to perform an airtightness test up to several thousand kg/cm 2 , which is the capacity of a hydraulic pump, and the consumption of gases such as nitrogen gas can be greatly reduced.
更に降圧時にはサイレンサー等の気体膨張によ
り発生する騒音の消音装置を必要とせず短時間で
降圧出来る利点がある。 Furthermore, when lowering the pressure, there is an advantage that the pressure can be lowered in a short time without requiring a muffling device such as a silencer to suppress noise generated by gas expansion.
この発明の実施にかかる装置の構造を以下図面
により説明する。気密試験を受ける圧力容器本体
１内には第１図に示すごとく隔膜袋２を挿入し、
その液体供給には液体供給加圧をする耐圧試験用
盲蓋３を設けた液体加圧口５′に接続する。この
耐圧試験用盲蓋３を圧力容器本体１に気密に取付
けし、ついで気体加圧口４′から隔膜袋２と圧力
容器本体１の内面との間の空間にN2ガス４等を
数Kg／cm2Ｇになるまで供給する。その後に液体５
を液体加圧口５′から供給し加圧すると隔膜袋２
は圧力容器本体１の内面形状に近い形に膨み、か
つ隔膜袋２と内面との間には液体圧力と同等の圧
力をもつ気体の薄い高圧気体膜４ａが形成され圧
力容器の気密試験を数1000Kg／cm2で行なうことを
可能とするものである。なおノズル８等の開口部
には保護カバー７等を使用し隔膜袋の破損を防止
する。 The structure of the apparatus according to the present invention will be explained below with reference to the drawings. A diaphragm bag 2 is inserted into the pressure vessel main body 1 to be subjected to the airtightness test as shown in FIG.
The liquid supply is connected to a liquid pressurizing port 5' provided with a blind lid 3 for pressure resistance testing to pressurize the liquid supply. This pressure test blind lid 3 is airtightly attached to the pressure vessel body 1, and then several kilograms of N 2 gas 4, etc. /cm 2 G. then liquid 5
When the liquid is supplied from the liquid pressurizing port 5' and pressurized, the diaphragm bag 2
is expanded to a shape similar to the inner surface shape of the pressure vessel main body 1, and a thin high-pressure gas film 4a having a pressure equivalent to the liquid pressure is formed between the diaphragm bag 2 and the inner surface, and the airtightness test of the pressure vessel is performed. This makes it possible to perform the process at several thousand kg/cm 2 . Note that a protective cover 7 or the like is used over the opening of the nozzle 8 or the like to prevent damage to the diaphragm bag.
要するにこの発明は以下の特徴を有する。 In short, this invention has the following features.
(1) 内部に液体を収容したときの形状が圧力容器
内面形状に近似し、かつ内部収容液体により変
形することのできる隔膜袋を空袋のまま前記圧
力容器内に収容しておき、ついで隔膜袋と前記
圧力容器壁との間に低い圧力の気体を供給し、
その後に前記隔膜袋内に液体を供給し加圧して
高圧の液体とし前記の気体を圧縮高圧気体とす
ることにより前記圧力容器の気密を試験する圧
力容器気密試験方法であること。(1) A diaphragm bag whose shape when containing liquid approximates the inner surface shape of the pressure vessel and which can be deformed by the liquid contained inside is stored in the pressure vessel as an empty bag, and then the diaphragm bag is supplying low pressure gas between the bag and the wall of the pressure vessel;
The pressure vessel airtightness test method includes testing the airtightness of the pressure vessel by subsequently supplying liquid into the diaphragm bag and pressurizing it to make it a high-pressure liquid and converting the gas into a compressed high-pressure gas.
(2) 隔膜袋を弾性をもちかつ気密性のよい材料で
内張りして形成したものを使用する特徴(1)に記
載の圧力容器気密試験方法であること。(2) The pressure vessel airtightness test method described in feature (1) uses a diaphragm bag lined with an elastic and airtight material.
この発明を実施することにより従来安全上困難
とする数1000Kg／cm2の圧力容器の気密試験とその
効果的な検査が可能となり試験用装置付属品とし
ても隔膜袋の準備だけですむ等種々の効果を奏す
るものである。 By implementing this invention, it becomes possible to perform airtightness tests on pressure vessels of several thousand kg/cm 2 , which have been difficult in the past due to safety concerns, and to effectively inspect them. It is effective.
第１図は圧力容器内に隔膜を挿入し圧力容器内
面と隔膜の間に初期のN2ガス等の気体による気
密圧力を掛けたときの圧力容器の縦断面図、第２
図は圧力容器内に挿入された隔膜内に液体を注ぎ
圧力容器内面が所定の気密試験圧力に保持された
ときの圧力容器の縦断面図である。
１……圧力容器本体、２……隔膜袋、３……耐
圧試験用盲蓋、４……N2ガス、４′……気体加圧
口、５……液体、５′……液体加圧口、６……圧
力計、７……保護カバー、８……ノズル。
Figure 1 is a vertical cross-sectional view of the pressure vessel when a diaphragm is inserted into the pressure vessel and initial airtight pressure is applied between the inner surface of the pressure vessel and the diaphragm using a gas such as N 2 gas.
The figure is a longitudinal sectional view of the pressure vessel when a liquid is poured into the diaphragm inserted into the pressure vessel and the inner surface of the pressure vessel is maintained at a predetermined airtight test pressure. 1...Pressure vessel body, 2...Diaphragm bag, 3...Blind lid for pressure test, 4... N2 gas, 4'...Gas pressurization port, 5...Liquid, 5'...Liquid pressurization Mouth, 6...pressure gauge, 7...protective cover, 8...nozzle.
Claims (1)
内面形状に近似しかつ内部収容液体により変形す
ることのできる隔膜袋を空袋のまま前記圧力容器
内に収容しておき、ついで隔膜袋と前記圧力容器
壁との間に低い圧力の気体を供給し、その後に前
記隔膜袋内に液体を供給し加圧して高圧の液体と
し前記の気体を圧縮高圧気体とすることにより前
記圧力容器の気密を試験することを特徴とする圧
力容器気密試験方法。 ２ 隔膜袋を弾性をもちかつ気密性のよい材料で
内張りして形成したものを使用することを特徴と
する特許請求の範囲第１項記載の圧力容器気密試
験方法。[Scope of Claims] 1. A diaphragm bag whose shape approximates the inner surface shape of the pressure vessel when liquid is stored therein and which can be deformed by the liquid contained therein is housed in the pressure vessel as an empty bag. Then, by supplying low-pressure gas between the diaphragm bag and the wall of the pressure vessel, and then supplying liquid into the diaphragm bag and pressurizing it to make it a high-pressure liquid, the gas is compressed into a high-pressure gas. A pressure vessel airtightness test method, comprising testing the airtightness of the pressure vessel. 2. The pressure vessel airtightness test method according to claim 1, characterized in that a diaphragm bag formed by lining with a material having elasticity and good airtightness is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3041877A JPS53116888A (en) | 1977-03-22 | 1977-03-22 | Testing method for airtightness of pressure vessels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3041877A JPS53116888A (en) | 1977-03-22 | 1977-03-22 | Testing method for airtightness of pressure vessels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53116888A JPS53116888A (en) | 1978-10-12 |
| JPS62444B2 true JPS62444B2 (en) | 1987-01-08 |
Family
ID=12303392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3041877A Granted JPS53116888A (en) | 1977-03-22 | 1977-03-22 | Testing method for airtightness of pressure vessels |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS53116888A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0196351U (en) * | 1987-12-18 | 1989-06-27 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101113784B1 (en) * | 2009-11-02 | 2012-02-27 | 한국표준과학연구원 | Pressure-Resistant Test Device and Pressure-Resistant Test Method of Metallic Container |
| JP6299522B2 (en) * | 2014-08-20 | 2018-03-28 | 株式会社Ihi | Test method for pressure resistance of DUT |
| JP2018105772A (en) * | 2016-12-27 | 2018-07-05 | トヨタ自動車株式会社 | Tank testing method |
-
1977
- 1977-03-22 JP JP3041877A patent/JPS53116888A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0196351U (en) * | 1987-12-18 | 1989-06-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53116888A (en) | 1978-10-12 |
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