JPS56142436A - Gas leak inspection device for cooling unit - Google Patents
Gas leak inspection device for cooling unitInfo
- Publication number
- JPS56142436A JPS56142436A JP4718780A JP4718780A JPS56142436A JP S56142436 A JPS56142436 A JP S56142436A JP 4718780 A JP4718780 A JP 4718780A JP 4718780 A JP4718780 A JP 4718780A JP S56142436 A JPS56142436 A JP S56142436A
- Authority
- JP
- Japan
- Prior art keywords
- opened
- valve
- helium
- helium gas
- exhausting system
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
PURPOSE:To conduct an inspection which does not require any special condition for a high-reliability and high-accuracy inspection yard's environment, by putting helium into a refrigerant passage and making the helium detect gas leak. CONSTITUTION:Prior to an inspection, an object (to be inspected) whose refrigerant passage is filled with compressed helium gas is put into an airtight chamber, a valve 23 of the first rough exhausting system 19 is opened, and rough exhaustion is executed up to a presribed pressure P2. And then, a valve 24 of a pre-test exhausting system 20 is opened, a valve 39 is also opened, and the exhausted gas is led to the third helium gas detector 38 for a pre-testing. If helium gas was not detected, a valve 25 of the first main exhausting system 21a is opened for further vacuum exhaustion, and a valve 26 of the first main test exhausting system 22a is opened, and at the same time, a valve 35 is also opened to allow the helium gas to flow into the first helium gas detector 34 to conduct a main test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4718780A JPS56142436A (en) | 1980-04-09 | 1980-04-09 | Gas leak inspection device for cooling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4718780A JPS56142436A (en) | 1980-04-09 | 1980-04-09 | Gas leak inspection device for cooling unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56142436A true JPS56142436A (en) | 1981-11-06 |
| JPS6353487B2 JPS6353487B2 (en) | 1988-10-24 |
Family
ID=12768092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4718780A Granted JPS56142436A (en) | 1980-04-09 | 1980-04-09 | Gas leak inspection device for cooling unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56142436A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56150656U (en) * | 1980-04-11 | 1981-11-12 | ||
| US6286362B1 (en) * | 1999-03-31 | 2001-09-11 | Applied Materials, Inc. | Dual mode leak detector |
| CN107192215A (en) * | 2017-04-21 | 2017-09-22 | 青岛海尔股份有限公司 | Refrigerator refrigerant leakage monitoring device, its control method and control system |
-
1980
- 1980-04-09 JP JP4718780A patent/JPS56142436A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56150656U (en) * | 1980-04-11 | 1981-11-12 | ||
| JPS5756929Y2 (en) * | 1980-04-11 | 1982-12-07 | ||
| US6286362B1 (en) * | 1999-03-31 | 2001-09-11 | Applied Materials, Inc. | Dual mode leak detector |
| CN107192215A (en) * | 2017-04-21 | 2017-09-22 | 青岛海尔股份有限公司 | Refrigerator refrigerant leakage monitoring device, its control method and control system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6353487B2 (en) | 1988-10-24 |
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