CN106353046B - DISS valve leak detection joint and rapid leak detection method - Google Patents

DISS valve leak detection joint and rapid leak detection method Download PDF

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Publication number
CN106353046B
CN106353046B CN201610763704.3A CN201610763704A CN106353046B CN 106353046 B CN106353046 B CN 106353046B CN 201610763704 A CN201610763704 A CN 201610763704A CN 106353046 B CN106353046 B CN 106353046B
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China
Prior art keywords
valve
joint
leak detection
pipeline
diss
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CN201610763704.3A
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CN106353046A (en
Inventor
李平
沈栋
韩琼
辛梦瑶
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Wujiang Messer Industrial Gas Co Ltd
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Wujiang Messer Industrial Gas Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/12Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water
    • G01M3/14Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G01M3/144Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for valves

Abstract

The invention relates to a DISS valve leak detection joint, which comprises a joint body and a fastening component for fastening the joint body on a valve interface, wherein a channel penetrating through two ends of the joint body is arranged in the joint body, one end of the channel can be communicated with an outlet of the valve interface, the other end of the channel is connected with a pipeline communicated with the channel, and the end part of the pipeline is provided with a complete circular section. A quick leak detection method for a DISS valve uses a leak detection joint, and comprises the steps of connecting a joint body to a valve interface, enabling a pipeline of the joint body to be communicated with an outlet of the valve interface, coating leak detection liquid on the end part of the pipeline of the joint body, and enabling the DISS valve to leak when bubbles appear at the end part of the pipeline. The invention effectively solves the problem that the DISS valve can not be used for leak detection by a conventional leak detection method; the problem of poor leak detection effect is effectively solved, and the leak detection effect is improved; micro leakage can be detected; compared with a special leak detection system, the method is simple and low in cost, and the rapidity of leak detection is highlighted; the operation is simple, and the cost is greatly reduced.

Description

DISS valve leak detection joint and rapid leak detection method
Technical Field
The invention relates to a DISS valve leak detection joint and a quick leak detection method.
Background
The DISS valve is a valve adopting a DISS interface, and the special requirements of electronic special gas generally adopt the DISS valve.
Compared with the traditional valve outlet, the regular circular section is adopted, and the DISS valve outlet is provided with two limiting grooves, so that the complete circular section is no longer provided for leakage detection liquid to form a soap film, and the leakage detection by the traditional leakage detection method cannot be used.
The traditional valve has the advantages that the circular section area of the outlet of the traditional valve is large, the area of the formed soap film is also large, the amplitude of the bulge of the soap film caused by tiny leakage is small, the observation is not easy, and therefore the leakage detection sensitivity is low; in addition, the traditional leakage detection liquid is soapy water, and the film forming property is low; in addition, the special leak detection system is high in cost and complex to operate.
The DISS valve comprises a valve interface 1 with an outlet 10, a limiting groove 11 communicated with the outlet 10 is formed in the valve interface 1, and threads 12 are arranged on the outer peripheral surface of the valve interface 1, as shown in figure 1.
Disclosure of Invention
An object of the present invention is to provide a dis valve leak detection joint.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a DISS valve leak hunting connects, includes the joint body, with the joint body fastening the fastening element on the valve interface, the joint body in have a passageway that runs through its both ends, the one end of passageway can be linked together with the export of valve interface, the other end of passageway be connected with rather than the pipeline that is linked together to the tip of pipeline complete circular tangent plane has.
Preferably, the conduit is a capillary tube.
Preferably, the joint body is provided with a connecting part, the width of the connecting part is consistent with that of a limiting groove of the valve interface, and when the joint body is connected to the valve interface: the connecting part is inserted into the limiting groove of the valve interface, and the channel is communicated with the outlet of the valve interface.
Preferably, a sealing gasket is arranged between the joint body and the valve interface.
Preferably, the fastening member includes a U-shaped body having a thread, the U-shaped body is provided with an opening at least allowing the pipe to be exposed, the joint body is disposed in the U-shaped body, and the U-shaped body is fastened to the thread of the valve port by the thread.
Another object of the present invention is to provide a method for rapidly detecting a leak of a dis valve.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method of rapid leak detection of a dis valve using a leak detection fitting according to any preceding claim, comprising: closing the DISS valve, connecting the joint body to the valve interface, communicating the pipeline of the joint body with the outlet of the valve interface, coating leakage detection liquid on the end part of the pipeline of the joint body, and when bubbles appear at the end part of the pipeline, the DISS valve leaks.
Preferably, the leakage detection liquid adopts SNOOP leakage detection liquid.
Preferably, the joint body and the valve interface are sealed through a sealing gasket.
Preferably, the joint body is fastened by the fastening part after being connected to the valve interface.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages and effects:
1. the problem that the DISS valve cannot be subjected to leak detection by a conventional leak detection method is effectively solved;
2. the problem of poor leak detection effect is effectively solved, and the leak detection effect is improved;
3. micro leakage can be detected;
4. compared with a special leak detection system, the method is simple and low in cost, and the rapidity of leak detection is highlighted;
5. the operation is simple, and the cost is greatly reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a DISS valve port;
FIG. 2 is a schematic cross-sectional view of a leak detection joint in this example;
FIG. 3 is a schematic leak detection diagram of this embodiment;
fig. 4 is a schematic diagram illustrating the detection of a leakage state according to the present embodiment.
Wherein: 1. a valve interface; 10. an outlet; 11. a limiting groove; 12. a thread; 2. a connector body; 20. a channel; 21. a pipeline; 22. a connecting portion; 3. a fastening member; 30. a U-shaped body; 31. an opening; 32. a thread; 4. sealing gaskets; 5. and (6) detecting leakage liquid.
Detailed Description
The invention is further described below with reference to the accompanying drawings and embodiments:
the DISS valve leak detection joint comprises a joint body 2 and a fastening component 3 for fastening the joint body 2 on a valve port 1, as shown in figure 2. Wherein:
the joint body 2 is internally provided with a channel 20 penetrating through two ends of the joint body, one end of the channel 20 can be communicated with the outlet 10 of the valve interface 1, the other end of the channel 20 is connected with a pipeline 21 communicated with the channel, and the end part of the pipeline 21 is provided with a complete circular section, so that the leak detection liquid can form a film easily. In this embodiment: the pipeline 21 adopts a capillary tube, the inner diameter of the capillary tube is usually equal to or less than 1 mm, the circular section area of the capillary tube is small, a soap film can be greatly expanded when tiny leakage occurs, and the sensitivity of leakage detection is greatly improved.
The connector body 2 is also provided with a connecting part 22, and the width of the connecting part 22 is consistent with that of the limiting groove 11 of the valve connector 1, so that the valve connector 1 can be tightly matched with the connecting part 22.
The fastening member 3 includes a U-shaped body 30 having a thread 32, and the U-shaped body 30 is opened with an opening 31 for allowing at least the pipe 21 to be exposed, such as a nut or the like having such a structure.
The method for rapidly detecting the leakage by using the leakage detection joint is specifically described as follows:
after the DISS valve is closed by specific torsion, a sealing gasket 4 is arranged between the connector body 2 and the valve interface 1, the connecting part 22 of the connector body 2 is inserted into the limiting groove 11 of the valve interface 1, and at the moment, the channel 20 of the connector body 2 is communicated with the outlet 10 of the valve interface 1; the U-shaped body 30 is used for sleeving the joint body 2 inside, the threads 32 on the U-shaped body 30 are matched with and fastened with the threads 12 of the valve port 1, and the pipeline 21 of the joint body 2 is exposed out of the opening 31 on the U-shaped body 30, as shown in FIG. 3; coating a leakage detection liquid 5 on the end part of the pipeline 21 of the joint body 2, observing whether the end part of the pipeline 21 bubbles, and if so, indicating that the valve is not completely closed, as shown in fig. 4; if no bubbling is seen, it can indicate that the valve has been completely closed.
In this embodiment: the SNOOP leakage detection liquid is adopted for leakage detection, and the SNOOP leakage detection liquid which is easy to form a film is used for replacing the traditional soapy water leakage detection liquid, so that the film forming property can be improved, and the leakage detection sensitivity can be improved.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (8)

1. The utility model provides a DISS valve leak hunting connects which characterized in that: the connector comprises a connector body and a fastening component for fastening the connector body on a valve interface, wherein a channel penetrating through two ends of the connector body is arranged in the connector body, one end of the channel can be communicated with an outlet of the valve interface, the other end of the channel is connected with a pipeline communicated with the channel, the end part of the pipeline is provided with a complete circular section, and the pipeline is a capillary tube.
2. A dis valve leak detection joint as defined in claim 1, wherein: the connector body on have connecting portion, the width of connecting portion be unanimous with the width of the spacing groove of valve interface, when the connector body connect on the valve interface: the connecting part is inserted into the limiting groove of the valve interface, and the channel is communicated with the outlet of the valve interface.
3. A dis valve leak detection joint as defined in claim 1 or 2, wherein: and a sealing gasket is arranged between the joint body and the valve interface.
4. A dis valve leak detection joint as defined in claim 1, wherein: the fastening part comprises a U-shaped body with threads, an opening at least allowing the pipeline to be exposed is formed in the U-shaped body, the joint body is arranged in the U-shaped body, and the U-shaped body is fastened with the threads of the valve port through the threads.
5. A DISS valve rapid leak detection method is characterized in that: the method of using the leak detection joint of any preceding claim, comprising: closing the DISS valve, connecting the joint body to the valve interface, communicating the pipeline of the joint body with the outlet of the valve interface, coating leakage detection liquid on the end part of the pipeline of the joint body, and when bubbles appear at the end part of the pipeline, the DISS valve leaks.
6. The DISS valve rapid leak detection method according to claim 5, characterized in that: and the leakage detection liquid adopts SNOOP leakage detection liquid.
7. The DISS valve rapid leak detection method according to claim 5, characterized in that: the connector body and the valve interface are sealed through a sealing gasket.
8. The DISS valve rapid leak detection method according to claim 5, characterized in that: the joint body is fastened through the fastening part after being connected to the valve interface.
CN201610763704.3A 2016-08-30 2016-08-30 DISS valve leak detection joint and rapid leak detection method Active CN106353046B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610763704.3A CN106353046B (en) 2016-08-30 2016-08-30 DISS valve leak detection joint and rapid leak detection method

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Application Number Priority Date Filing Date Title
CN201610763704.3A CN106353046B (en) 2016-08-30 2016-08-30 DISS valve leak detection joint and rapid leak detection method

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CN106353046A CN106353046A (en) 2017-01-25
CN106353046B true CN106353046B (en) 2019-12-24

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0633451A2 (en) * 1993-07-06 1995-01-11 Tuboscope Vetco International, Inc. A method for the ultrasonic inspection of pipe and tubing and a transducer assembly for use therewith
US6647763B1 (en) * 2002-03-21 2003-11-18 The United States Of America As Represented By The Secretary Of The Navy Optical vacuum leak detection device and method
CN203857163U (en) * 2014-04-29 2014-10-01 奇瑞汽车股份有限公司 Adapter for sectioned leakage detection and cleaning of automobile air conditioner system
CN204188350U (en) * 2014-11-14 2015-03-04 四川制动科技股份有限公司 A kind of air-leakage test structure of valve body composition
CN205209701U (en) * 2015-11-03 2016-05-04 爱科锐特科技(北京)有限公司 Electron quantifys formula valve seal detector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0633451A2 (en) * 1993-07-06 1995-01-11 Tuboscope Vetco International, Inc. A method for the ultrasonic inspection of pipe and tubing and a transducer assembly for use therewith
US6647763B1 (en) * 2002-03-21 2003-11-18 The United States Of America As Represented By The Secretary Of The Navy Optical vacuum leak detection device and method
CN203857163U (en) * 2014-04-29 2014-10-01 奇瑞汽车股份有限公司 Adapter for sectioned leakage detection and cleaning of automobile air conditioner system
CN204188350U (en) * 2014-11-14 2015-03-04 四川制动科技股份有限公司 A kind of air-leakage test structure of valve body composition
CN205209701U (en) * 2015-11-03 2016-05-04 爱科锐特科技(北京)有限公司 Electron quantifys formula valve seal detector

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