JPH0725652Y2 - Airtightness inspection device - Google Patents
Airtightness inspection deviceInfo
- Publication number
- JPH0725652Y2 JPH0725652Y2 JP7029790U JP7029790U JPH0725652Y2 JP H0725652 Y2 JPH0725652 Y2 JP H0725652Y2 JP 7029790 U JP7029790 U JP 7029790U JP 7029790 U JP7029790 U JP 7029790U JP H0725652 Y2 JPH0725652 Y2 JP H0725652Y2
- Authority
- JP
- Japan
- Prior art keywords
- inspection
- differential pressure
- pressure gauge
- valve
- primary
- 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 - Lifetime
Links
- 238000007689 inspection Methods 0.000 title claims description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Description
この考案は、炭酸ガス溶接機のガス炭酸ホース，家庭用
のガス配管および自動車のクーラーの配管等の気密保持
を要するものに対する気密検査装置に関するものであ
る。The present invention relates to an airtightness inspection apparatus for gas carbonic acid hoses of carbon dioxide welding machines, gas pipes for home use, cooler pipes of automobiles, etc., which need to be kept airtight.
従来、この種の考案は、例えば、ガス酸素ホースの気密
検査をする時、該ガス酸素ホースに空気を封入し、石け
ん水を塗布して塗布部分の石けん水が気泡状になる箇所
を検査して不良箇所をチェックするものが知られてい
る。Conventionally, this type of device has, for example, sealed air in the gas oxygen hose and applied soap water to inspect the gas oxygen hose for airtightness inspection. It is known to check for defective points.
従来の技術で述べたように、気密検査をする時気密検査
の対象物に空気を封入し、検査対象箇所に石けん水を塗
布していたが、対象物に石けん水をかけるのは非能率的
で検査後掃きとらねばならず、多大の労力を要するとい
う問題点を有していた。 この考案は、従来の技術の有するこのような問題点に鑑
みてなされたものであり、その目的とするところは、短
時間で確実な検査ができかつ余り労力を費やさずに検査
が行える気密検査装置を提供しようとするものである。As described in the prior art, when performing an airtight inspection, air was enclosed in the airtight inspection target and soap water was applied to the inspection target, but it is inefficient to apply soap water to the target. Therefore, it has to be swept after the inspection, which requires a great deal of labor. The present invention has been made in view of such problems of the conventional technology, and the purpose thereof is to perform an airtight inspection that can perform a reliable inspection in a short time and can be performed without spending much labor. It is intended to provide a device.
上記目的を達成するために、この考案は、気密検査の検
査対象物と圧力容器とを連結する中間連結管と、該中間
連結管に四方切替用のバルブと、該バルブの一端に取付
けた一次検査用の差圧計接続分岐管と、該バルブの他端
に取付けた二次検査用の差圧計接続分岐管とから構成さ
れ、該検査対象物に圧力容器から空気を封入し一次およ
び二次検査用の該差圧計により気密検査するものであ
る。In order to achieve the above object, the present invention is directed to an intermediate connecting pipe for connecting an object to be inspected for airtightness inspection and a pressure vessel, a valve for four-way switching to the intermediate connecting pipe, and a primary fitting attached to one end of the valve. It is composed of a differential pressure gauge connecting branch pipe for inspection and a differential pressure gauge connecting branch pipe for secondary inspection attached to the other end of the valve. Primary and secondary inspection by enclosing air from a pressure container in the inspection object The air-tightness is inspected by the differential pressure gauge for use.
この考案において、気密検査の検査対象物を中間連結管
に接続し、バルブを開いて該検査対象物に圧力容器から
空気を封入し、該検査対象物と圧力容器とを同圧にす
る。次に、該バルブを切換えて該検査対象物との通路を
閉じ、一次検査用の差圧計接続分岐管を開き、圧力差に
よる玉の変化を見る。洩れが少なくて確認できない時
は、該バルブを切換えて一次検査用分岐管を閉じ、二次
検査用の差圧計接続分岐管を開き、差圧が小さい時は水
頭差を生じ、差圧が大きい時は水の中に気泡が発生す
る。In this invention, the inspection object of the airtightness inspection is connected to the intermediate connecting pipe, the valve is opened to enclose air from the pressure container to the inspection object, and the inspection object and the pressure container are made to have the same pressure. Next, the valve is switched to close the passage to the object to be inspected, the differential pressure gauge connecting branch pipe for the primary inspection is opened, and the change of the ball due to the pressure difference is observed. When the leak is too small to check, switch the valve to close the branch pipe for primary inspection and open the branch pipe for connecting the differential pressure gauge for secondary inspection. When the differential pressure is small, a head difference occurs and the differential pressure is large. At times, bubbles are generated in the water.
実施例について図面を用いて説明すると、第１図に示す
ように、気密検査の検査対象物１と圧力容器２とを中間
連結管３で連結しており、該中間連結管３に四方切換用
のバルブ４を設けている。該バルブ４の一端に一次検査
用の差圧計７と接続した分岐管５を取付け、該分岐管５
は該中間連結管３の該検査対象物１側に帰着する。該バ
ルブ４の他端には二次検査用の差圧計８と接続した分岐
管６を取付け、該分岐管６は該中間連結管３の該検査対
象物１側に帰着する。該差圧計７と該差圧計８は、炭酸
ガス溶接機の差圧計を使用しており、差圧計７は、第２
図に示すように、玉11を差圧により昇降可能に内包して
いる。差圧計８は、第３図に示すように、倒置して接続
し、差圧計８内は水14を一定の水位まで水張りしてい
る。 この実施例において、気密検査の検査対象物１を中間連
結管３に接続し、バルブ４を開いて該検査対象物１に該
圧力容器２より空気を封入して、該検査対象物１と圧力
容器２を同圧にする。次に、該バルブ４を切換えて該検
査対象物１との通路を閉じ、一次検査用の分岐管５を開
く。該検査対象物１に多量の洩れがある場合、検査対象
物側口10の方の空気圧が下がり、一次検査用の差圧計７
の圧力容器側口９から空気圧で玉11が押されて上昇する
ので洩れが確認できる。洩れが少なくて玉11が変化しな
ければ、該バルブ４を切換えて一次検査用の分岐管５を
閉じ、二次検査用の分岐管６を開く。少しの洩れがある
場合、二次検査用の差圧計８の検査対象物側口13の空気
圧が下がり、圧力容器側口12から空気が封入され、水張
りされた水14の中に気泡が生じて洩れを確認できる。An embodiment will be described with reference to the drawings. As shown in FIG. 1, an inspection object 1 for airtightness inspection and a pressure vessel 2 are connected by an intermediate connecting pipe 3, and the intermediate connecting pipe 3 is used for four-way switching. Valve 4 is provided. A branch pipe 5 connected to a differential pressure gauge 7 for primary inspection is attached to one end of the valve 4, and the branch pipe 5
Returns to the inspection object 1 side of the intermediate connecting pipe 3. A branch pipe 6 connected to a differential pressure gauge 8 for secondary inspection is attached to the other end of the valve 4, and the branch pipe 6 is returned to the inspection object 1 side of the intermediate connecting pipe 3. The differential pressure gauge 7 and the differential pressure gauge 8 use a differential pressure gauge of a carbon dioxide welding machine, and the differential pressure gauge 7 is a second differential pressure gauge.
As shown in the figure, the ball 11 is contained so that it can be raised and lowered by a differential pressure. As shown in FIG. 3, the differential pressure gauge 8 is connected upside down, and the inside of the differential pressure gauge 8 is filled with water 14 up to a certain water level. In this embodiment, the inspection object 1 for the airtightness inspection is connected to the intermediate connecting pipe 3, the valve 4 is opened, and the inspection object 1 is filled with air from the pressure vessel 2 so that the inspection object 1 and the pressure are Bring container 2 to the same pressure. Next, the valve 4 is switched to close the passage to the inspection object 1, and the branch pipe 5 for the primary inspection is opened. When there is a large amount of leakage in the inspection object 1, the air pressure at the inspection object side port 10 decreases and the differential pressure gauge 7 for the primary inspection
Since the ball 11 is pushed up by air pressure from the pressure container side port 9 and rises, leakage can be confirmed. If there is little leakage and the ball 11 does not change, the valve 4 is switched to close the branch pipe 5 for primary inspection and open the branch pipe 6 for secondary inspection. If there is a slight leak, the air pressure at the inspection object side port 13 of the differential pressure gauge 8 for the secondary inspection decreases, air is filled from the pressure container side port 12, and bubbles form in the water 14 filled with water. You can check the leak.
この考案は、上述のとおり構成されているので、次に記
載する効果を奏する。この考案は、簡単なバルブ操作に
より短時間で確実な検査ができ、例えば、炭酸ガス溶接
機のガス酸素ホースを現場ですぐ検査でき、持ち運び可
能な重量の小さいタンク，量産品の容器のような検査合
格率の高いものに有効で、更に家庭のガス配管および自
動車のクーラーの配管等の検査にも使用できる。Since the present invention is configured as described above, it has the following effects. This device can perform a reliable inspection in a short time with a simple valve operation. For example, the gas oxygen hose of a carbon dioxide welding machine can be inspected immediately on site, and it can be carried in a small tank, such as a mass-produced container. It is effective for those with a high inspection pass rate, and can also be used for inspection of household gas pipes and automobile cooler pipes.
第１図は、この考案に係る実施例の系統図で、第２図は
一次検査用の差圧計の詳細図を略示したもので、第３図
は二次検査用の差圧計の詳細図を略示したものである。 １……検査対象物、２……圧力容器、３……中間連結
管、４……バルブ、5,6……分岐管、7,8……差圧計、９
……圧力容器側口、10……検査対象物側口、11……玉、
12……圧力容器側口、13……検査対象物側口、14……
水。FIG. 1 is a system diagram of an embodiment according to the present invention, FIG. 2 is a detailed view of a differential pressure gauge for primary inspection, and FIG. 3 is a detailed view of a differential pressure gauge for secondary inspection. Is abbreviated. 1 ... Inspection object, 2 ... Pressure vessel, 3 ... Intermediate connecting pipe, 4 ... Valve, 5,6 ... Branching pipe, 7,8 ... Differential pressure gauge, 9
...... Pressure vessel side port, 10 …… Inspection object side port, 11 …… Ball,
12 …… Pressure vessel side port, 13 …… Inspection object side port, 14 ……
water.
Claims (1)
（２）とを中間連結管（３）で連結し、該中間連結管
（３）に四方切換用のバルブ（４）を装備し、該バルブ
（４）の一端に一次検査用の差圧計（７）と接続した分
岐管（５）を取付けて該中間連結管（３）の該検査対象
物（１）側へ帰着させ、該バルブ（４）の他端に二次検
査用の差圧計（８）と接続した分岐管（６）を取付けて
該中間連結管（３）の該検査対象物（１）側へ帰着さ
せ、一次検査用の該差圧計（７）内には昇降可能に玉
（11）を内包し、二次検査用の該差圧計（８）は倒置し
て水（14）を水張りし、該検査対象物（１）に該圧力容
器（２）から空気を封入して一次および二次検査用の該
差圧計（７），（８）により気密検査することを特徴と
する気密検査装置。1. An inspection object (1) for airtightness inspection and a pressure vessel (2) are connected by an intermediate connecting pipe (3), and the intermediate connecting pipe (3) is equipped with a valve (4) for four-way switching. Then, a branch pipe (5) connected to a differential pressure gauge (7) for primary inspection is attached to one end of the valve (4) to return the intermediate connecting pipe (3) to the inspection object (1) side, A branch pipe (6) connected to a differential pressure gauge (8) for secondary inspection is attached to the other end of the valve (4) to return the intermediate connection pipe (3) to the inspection object (1) side, A ball (11) is included in the differential pressure gauge (7) for the primary inspection so as to be able to move up and down, and the differential pressure gauge (8) for the secondary inspection is inverted and water (14) is filled with water. An airtightness inspection device characterized by enclosing air from the pressure vessel (2) in an object (1) and performing airtightness inspection by the differential pressure gauges (7) and (8) for primary and secondary inspections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7029790U JPH0725652Y2 (en) | 1990-06-29 | 1990-06-29 | Airtightness inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7029790U JPH0725652Y2 (en) | 1990-06-29 | 1990-06-29 | Airtightness inspection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0429852U JPH0429852U (en) | 1992-03-10 |
| JPH0725652Y2 true JPH0725652Y2 (en) | 1995-06-07 |
Family
ID=31606338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7029790U Expired - Lifetime JPH0725652Y2 (en) | 1990-06-29 | 1990-06-29 | Airtightness inspection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725652Y2 (en) |
-
1990
- 1990-06-29 JP JP7029790U patent/JPH0725652Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0429852U (en) | 1992-03-10 |
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