CN105910771A - Helium vacuum leak checking device - Google Patents
Helium vacuum leak checking device Download PDFInfo
- Publication number
- CN105910771A CN105910771A CN201610364173.0A CN201610364173A CN105910771A CN 105910771 A CN105910771 A CN 105910771A CN 201610364173 A CN201610364173 A CN 201610364173A CN 105910771 A CN105910771 A CN 105910771A
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- CN
- China
- Prior art keywords
- helium
- vacuum leak
- spray gun
- leak checking
- pressure
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Classifications
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- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to a helium vacuum leak checking device. With the device, the labor intensity of workers is reduced, the working efficiency and the accuracy of vacuum leak checking results are improved, and the labor cost of vacuum leak checking is reduced. The helium vacuum leak checking device comprises a helium spectrum analyzer and a helium supply device. The helium supply device comprises a helium storage pressure tank, a pressure relief valve, a pressure gauge, a regulation valve, a flow meter, a hose, a spray gun, a telescopic rod, and a helium outlet tube. One end of the helium outlet tube is connected with the outlet of the helium storage pressure tank, and the other end is connected with the hose. The pressure relief valve, the pressure gauge, the regulation valve and the flow meter are sequentially installed on the helium outlet tube. The spray gun is installed on the telescopic rod and connected with the hose.
Description
Technical field
The present invention relates to a kind of helium vacuum leak detection device.
Background technology
Helium mass spectrometer leak detector is gas industry vocabulary of terms, such as the Chinese patent of Application No. 200820161470.6, makees probe gas with helium, carries out, with gas analyser detection helium, the mass spectrograph hunted leak.The background noise of helium is low, and molecular weight and the coefficient of viscosity are little, thus easily by small opening and easily spreads；Helium system noble gas, not etching apparatus, therefore conventional helium makees probe gas.Being sprayed onto by this gas on the tested container being connected to gas analyser, if container has small opening, then analyser has reacted, thus understands small opening place.
Existing helium vacuum leak detection device, is simply used for vacuum leakage detection aspect by helium mass spectral analysis, does not considers on-the-spot specific works needs, and helium can not persistently be supplied, and extensive work is for repeatedly transporting helium in a small amount.The Stress control difficulty when concrete leakage detection position spraying helium, reduces the accuracy of the magnitude that helium is analyzed.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency present in prior art, and the helium vacuum leak detection device of a kind of reasonable in design is provided, reduce the labor intensity of staff, improve work efficiency and the accuracy of vacuum leakage detection result, reduce the human cost of vacuum leakage detection work.
The present invention solves the problems referred to above and be the technical scheme is that a kind of helium vacuum leak detection device, including helium mass spectrometer and helium feeding mechanism, it is characterised in that: described helium feeding mechanism includes that helium pressure store tank, air relief valve, Pressure gauge, regulation valve, effusion meter, flexible pipe, spray gun, expansion link and nitrogen go out pipe；Nitrogen goes out pipe one end and is connected with the outlet of helium pressure store tank, and the other end is with hose connection；Air relief valve, Pressure gauge, regulation valve, effusion meter are sequentially arranged at nitrogen and go out on pipe；Spray gun is arranged on expansion link, and with hose connection.
The bottom of helium pressure store tank of the present invention is provided with universal wheel.
Helium pressure store tank of the present invention is cylindrical tank, a diameter of 20cm, and height is 40cm.
Flexible pipe rubber of the present invention is made.
The present invention compared with prior art, has the following advantages and effect: reasonable in design, reduces the labor intensity of staff, improves work efficiency and the accuracy of vacuum leakage detection result, reduces the human cost of vacuum leakage detection work；Could dictate that use pressure and the flow of helium vacuum leakage detection, it is stipulated that spraying rate (every meter per second), operating process standardization so that the result data of test can contrast demonstration at the standard conditions.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following example are explanation of the invention and the invention is not limited in following example.
Seeing Fig. 1, the embodiment of the present invention includes helium mass spectrometer 1 and helium feeding mechanism, and helium feeding mechanism includes that helium pressure store tank 2, air relief valve 3, Pressure gauge 4, regulation valve 5, effusion meter 6, flexible pipe 7, spray gun 8, expansion link 9 and nitrogen go out pipe 10.
Nitrogen goes out pipe 10 one end and is connected with the outlet of helium pressure store tank 2, and the other end is connected with flexible pipe 7.
Air relief valve 3, Pressure gauge 4, regulation valve 5, effusion meter 6 are sequentially arranged at nitrogen and go out on pipe 10.
Spray gun 8 is arranged on expansion link 9, and is connected with flexible pipe 7.
The bottom of helium pressure store tank 2 is provided with universal wheel.Helium pressure store tank 2 small in volume, is suitable for two adult's carryings (including local stair activity).Helium pressure store tank 2 is cylindrical tank, a diameter of 20cm, and height is 40cm, used by the enough vacuum leakage detections of amount of internal reservoir helium.
Air relief valve 3 can be effectively isolated helium in helium pressure store tank 2, prevents to outward leakage.
Pressure gauge 4, regulation valve 5, effusion meter 6 regulate helium supply pressure, stably improve helium mass spectrometer 1 precision of analysis, use pressure and the flow of helium vacuum leakage detection is provided in rule of operation, operating process standardization so that the result data of test can contrast at the standard conditions.
Expansion link 9 controls spray gun 8 and moves, and it is aluminum alloy material, is successively set in together and can stretch, total 4 meters long, and the interior fixing end of joint can be freely rotatable for spherical connection.
Flexible pipe 7 facilitates operator that helium sprays to each device of generating set and the corner of equipment, it is to avoid the work of vacuum leakage detection retains dead angle because of technological means reason.Flexible pipe 7 can slide along expansion link 9.Flexible pipe 7 is made with rubber.
Open air relief valve 3 and spray gun 8, adjust the definite value that regulation valve 5 makes the pressure on Pressure gauge 4 and the flow on effusion meter 6 specify in code.With spray gun 8 at the spraying rate spraying helium needing the position of spraying to specify according to code, at the discharge duct outlets of vacuum pump, helium mass spectrometer 1 detects that helium can find leak source, the size of result of the test magnitude can react the size of leak source.The result data of test can contrast demonstration at the standard conditions.In process of the test, helium pressure store tank 2 is placed on same floor height and can all be detected by the suspection leak source of this layer.Different floor heights can use elevator vehicle.Helium can persistently be supplied and avoid a large amount of manpower and the most repeatedly transport the labor intensity that in a small amount helium is increased, and saves plenty of time cost.Helium pressure flow spray time stablize the precision that improve time result.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, be named title etc. can be different, and the above content described in this specification is only to present configuration example explanation.
Claims (4)
1. a helium vacuum leak detection device, including helium mass spectrometer and helium feeding mechanism, it is characterised in that: described helium feeding mechanism includes that helium pressure store tank, air relief valve, Pressure gauge, regulation valve, effusion meter, flexible pipe, spray gun, expansion link and nitrogen go out pipe；Nitrogen goes out pipe one end and is connected with the outlet of helium pressure store tank, and the other end is with hose connection；Air relief valve, Pressure gauge, regulation valve, effusion meter are sequentially arranged at nitrogen and go out on pipe；Spray gun is arranged on expansion link, and with hose connection.
Helium vacuum leak detection device the most according to claim 1, it is characterised in that: the bottom of described helium pressure store tank is provided with universal wheel.
Helium vacuum leak detection device the most according to claim 1, it is characterised in that: described helium pressure store tank is cylindrical tank, a diameter of 20cm, and height is 40cm.
Helium vacuum leak detection device the most according to claim 1, it is characterised in that: described flexible pipe rubber is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364173.0A CN105910771A (en) | 2016-05-30 | 2016-05-30 | Helium vacuum leak checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364173.0A CN105910771A (en) | 2016-05-30 | 2016-05-30 | Helium vacuum leak checking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105910771A true CN105910771A (en) | 2016-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610364173.0A Pending CN105910771A (en) | 2016-05-30 | 2016-05-30 | Helium vacuum leak checking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105910771A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107794525A (en) * | 2017-10-30 | 2018-03-13 | 武汉冶钢结构有限责任公司 | Cold spraying leak stopping encapsulating method for vacuum system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4294106A (en) * | 1979-03-28 | 1981-10-13 | Compagnie Industrielle Des Telecommunications Cit-Alcatel | Leak detector |
| CN103471780A (en) * | 2013-08-27 | 2013-12-25 | 宁波明欣化工机械有限责任公司 | System and method for detecting welding seam of end cover of sealed container |
| CN204008029U (en) * | 2014-08-08 | 2014-12-10 | 山西潞安环保能源开发股份有限公司 | A kind of continuous quantitative releasing device of tracer gas |
| CN105092182A (en) * | 2015-08-14 | 2015-11-25 | 中广核工程有限公司 | Vacuum helium leak checking method for condenser at power operation phase of nuclear power plant |
| CN205808636U (en) * | 2016-05-30 | 2016-12-14 | 华电电力科学研究院 | Helium vacuum leak detection device |
-
2016
- 2016-05-30 CN CN201610364173.0A patent/CN105910771A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4294106A (en) * | 1979-03-28 | 1981-10-13 | Compagnie Industrielle Des Telecommunications Cit-Alcatel | Leak detector |
| CN103471780A (en) * | 2013-08-27 | 2013-12-25 | 宁波明欣化工机械有限责任公司 | System and method for detecting welding seam of end cover of sealed container |
| CN204008029U (en) * | 2014-08-08 | 2014-12-10 | 山西潞安环保能源开发股份有限公司 | A kind of continuous quantitative releasing device of tracer gas |
| CN105092182A (en) * | 2015-08-14 | 2015-11-25 | 中广核工程有限公司 | Vacuum helium leak checking method for condenser at power operation phase of nuclear power plant |
| CN205808636U (en) * | 2016-05-30 | 2016-12-14 | 华电电力科学研究院 | Helium vacuum leak detection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107794525A (en) * | 2017-10-30 | 2018-03-13 | 武汉冶钢结构有限责任公司 | Cold spraying leak stopping encapsulating method for vacuum system |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160831 |