CN104596706A - Additional device for nitrogen hydrogen leak detector application occasion expansion - Google Patents

Additional device for nitrogen hydrogen leak detector application occasion expansion Download PDF

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Publication number
CN104596706A
CN104596706A CN201510069520.2A CN201510069520A CN104596706A CN 104596706 A CN104596706 A CN 104596706A CN 201510069520 A CN201510069520 A CN 201510069520A CN 104596706 A CN104596706 A CN 104596706A
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China
Prior art keywords
cavity
nitrogen hydrogen
cover box
probe
shaped cavity
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CN201510069520.2A
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Chinese (zh)
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CN104596706B (en
Inventor
刘德亮
赵超越
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Boyi (Tianjin) Pneumatic Technology Institute Co Ltd
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Boyi (Tianjin) Pneumatic Technology Institute Co Ltd
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Abstract

The invention provides an additional device for the nitrogen hydrogen leak detector application occasion expansion. The device comprises a cover box, a switch valve and a compressed air source. The cover box is provided with a cavity including a T-shaped cavity and is further provided with a probe hole used for accommodating a leak detector probe, and the probe hole is communicated and connected with the T-shaped cavity; an air source connector is communicated and connected with the T-shaped cavity; a cavity, with large diameter, of the T-shaped cavity is located between the probe hole and a cavity, with small diameter, of the T-shaped cavity. By the aid of the additional device, when the nitrogen hydrogen leak detector is used for detecting leak of an object to be detected with large amount of tracer gas of the environmental background, the nitrogen hydrogen leak detector is capable of performing the leak detection normally, the performance maintenance of the leak detector probe can be benefited, and the service life of the leak detector probe is prolonged; since the recovery process after the tracer gas exceeds the range is omitted for the leak detector probe, the leak detection operating efficiency of the nitrogen hydrogen leak detector is improved.

Description

For expanding the attachment device of nitrogen hydrogen leak locator use occasion
Technical field
The invention belongs to leak hunting technology field, particularly relating to a kind of attachment device for expanding the use occasion of nitrogen hydrogen leak locator.
Background technology
When utilizing nitrogen hydrogen leak locator to search measured object leakage point, need first to be filled with tracer gas (being generally the hydrogen of 5% concentration) to measured object, recycling nitrogen hydrogen leak locator detects on measured object surface, when nitrogen hydrogen leak locator perceives tracer gas, can leak point be had to exist by alarm.But if when there is a large amount of tracer gas in environmental exact details, nitrogen hydrogen leak locator has not also carried out detection just outrange warning to measured object, and it cannot normally use at all.Even if utilize existing cover box by measured object local or all cover, the tracer gas in environmental exact details also cannot be avoided to enter cover box thus impact leak detection result.
Summary of the invention
In view of this, the present invention is intended to propose a kind of attachment device for expanding the use occasion of nitrogen hydrogen leak locator, when there is a large amount of tracer gas to solution nitrogen hydrogen leak locator in environmental exact details, normally cannot carry out the problem of hunting leak.
For achieving the above object, technical scheme of the present invention is achieved in that
The described attachment device for expanding the use occasion of nitrogen hydrogen leak locator, comprise cover box, switch valve and compressed air source, described cover box has cavity, cover box is also provided with the gas source connector be connected with cavity, compressed air source is connected to gas source connector by pipeline, described cavity comprises a T-shaped cavity, and described cover box also has the probe hole for holding leak locator probe, probe hole is connected with T-shaped cavity is through; Described gas source connector is also connected with T-shaped cavity is through.
Further, the cavity that described T-shaped cavity mesoporous is larger is between probe hole and the less cavity of T-shaped cavity mesoporous.
Further, described cover box is round table-like structure, and probe hole and gas source connector all start from the end face that in cover box two circular end face, diameter is less.
Further, described cavity also comprises a round platform cavity, and it passes through mutually with T-shaped cavity and connects, eventually to the end face that diameter in cover box two circular end face is larger.
Preferably, described cover box is obtained by resilient material.
Further, the pipeline between described compressed air source and gas source connector is also serially connected with switch valve.
Further, described switch valve is fixed on leak locator handle.
Relative to prior art, the attachment device for expanding the use occasion of nitrogen hydrogen leak locator of the present invention, by improving cover box: cover box has probe hole, probe hole is connected with T-shaped cavity is through, and described gas source connector is also connected with T-shaped cavity is through.This kind of structure can be opposite to the measured object that there is a large amount of tracer gas in environmental exact details when hunting leak by utility nitrogen hydrogen leak locator, in the whole process of leak detection, tracer gas in environmental exact details is not popped one's head in leak locator and is contacted, thus ensure that normally carrying out of nitrogen hydrogen leak locator leak detection operation, and be conducive to the maintenance of the performance to leak locator probe, extend the serviceable life of leak locator probe; Simultaneously because leak locator probe is without the need to experiencing the rejuvenation after tracer gas outrange, the efficiency of nitrogen hydrogen leak locator leak detection operation is improved.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is cover box gas circuit schematic diagram of the present invention;
Fig. 2 is cover box structural representation.
Description of reference numerals:
1. cover box, 2. switch valve, 3. compressed air source, 4. leak locator handle, 5. leak locator probe, 6. measured object, 11.T type cavity, 12. probe holes, 13. gas source connectors, 14. round platform cavitys.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Attachment device for expanding the use occasion of nitrogen hydrogen leak locator of the present invention, as shown in Figure 1, 2, comprise cover box 1, switch valve 2 and compressed air source 3, described cover box 1 has cavity, cover box 1 is also provided with the gas source connector 13 be connected with cavity, compressed air source 3 is connected to gas source connector 13 by pipeline, and described cavity comprises a T-shaped cavity 11, described cover box 1 also has the probe hole 12 for holding leak locator probe 5, probe hole 12 is connected with T-shaped cavity 11 is through; Described gas source connector 13 is also connected with T-shaped cavity 11 is through.
The operation steps utilizing nitrogen hydrogen leak locator to be opposite to when the measured object 6 that there is a large amount of tracer gas in environmental exact details is hunted leak is as follows:
First connect source of the gas, pressurized air enters from gas source connector 13, blows to other positions of cover box 1 cavity through T-shaped cavity 11;
Again leak locator probe 5 is inserted probe hole 12, and its head stretches into T-shaped cavity 11, but do not exceed T-shaped cavity 11, pressurized air continues to be blown in cover box 1, blow over leak locator from leak detection instrument probe 5 rear to pop one's head in 5 heads, thus avoid leak locator probe and 5 to contact with the tracer gas existed in environmental exact details, avoid the generation of outrange warning;
In cover box 1, continue winding-up a period of time pressurized air, make to be full of pressurized air in cover box 1, then start to hunt leak, just can successfully hunt leak to measured object 6;
After leak detection completes, then connect source of the gas, a period of time pressurized air of jetting in cover box 1, enter leak locator probe 5 to avoid the tracer gas in environmental exact details.
The larger cavity of described T-shaped cavity 11 mesoporous is between probe hole 12 and the less cavity of T-shaped cavity 11 mesoporous.Leak locator probe 5 is after probe hole 12 inserts, and its head is to stretch into and the cavity not exceeding T-shaped cavity 11 mesoporous less is advisable.
Preferably, described cover box 1 is round table-like structure, and probe hole 12 and gas source connector 13 all start from the end face that in cover box 1 liang of circular end face, diameter is less.
Described cavity also comprises a round platform cavity 14, above-mentioned pressurized air enters from gas source connector 13, blows to other positions of cover box 1 cavity through T-shaped cavity 11, and these other positions i.e. this round platform cavity 14, it passes through mutually with T-shaped cavity 11 and connects, eventually to the end face that diameter in cover box 1 liang of circular end face is larger.
In order to the physical dimension making cover box can adapt to all kinds of measured object 6, described cover box 1 is obtained by resilient material.
Conveniently controlling pressurized air gas circuit opens closed, and the pipeline between described compressed air source 3 and gas source connector 13 is also serially connected with switch valve 2.
Conveniently use, described switch valve 2 is fixed on leak locator handle 4.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (7)

1. one kind for expanding the attachment device of nitrogen hydrogen leak locator use occasion, comprise cover box (1), switch valve (2) and compressed air source (3), described cover box (1) has cavity, cover box (1) is also provided with the gas source connector (13) be connected with cavity, compressed air source (3) is connected to gas source connector (13) by pipeline, it is characterized in that: described cavity comprises a T-shaped cavity (11), described cover box (1) also has the probe hole (12) for holding leak locator probe (5), probe hole (12) is connected with T-shaped cavity (11) is through,
Described gas source connector (13) is also connected with T-shaped cavity (11) is through.
2. the attachment device for expanding the use occasion of nitrogen hydrogen leak locator according to claim 1, is characterized in that: the cavity that described T-shaped cavity (11) mesoporous is larger is positioned between probe hole (12) and the less cavity of T-shaped cavity (11) mesoporous.
3. the attachment device for expanding the use occasion of nitrogen hydrogen leak locator according to claim 1, it is characterized in that: described cover box (1) is round table-like structure, probe hole (12) and gas source connector (13) all start from the end face that in cover box (1) two circular end face, diameter is less.
4. the attachment device for expanding the use occasion of nitrogen hydrogen leak locator according to claim 3, it is characterized in that: described cavity also comprises a round platform cavity (14), it passes through mutually with T-shaped cavity (11) and connects, eventually to the end face that diameter in cover box (1) two circular end face is larger.
5. the attachment device for expanding the use occasion of nitrogen hydrogen leak locator according to claim 1, is characterized in that: described cover box (1) is obtained by resilient material.
6. the attachment device for expanding the use occasion of nitrogen hydrogen leak locator according to claim 1, is characterized in that: the pipeline between described compressed air source (3) and gas source connector (13) is also serially connected with switch valve (2).
7. the attachment device for expanding the use occasion of nitrogen hydrogen leak locator according to claim 6, is characterized in that: described switch valve (2) is fixed on leak locator handle (4).
CN201510069520.2A 2015-02-10 2015-02-10 For extending the attachment device of nitrogen hydrogen leak detector use occasion Active CN104596706B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106017818A (en) * 2016-06-01 2016-10-12 天津博益气动股份有限公司 Suction gun probe of suction type nitrogen and hydrogen leak detector

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CN103471782A (en) * 2013-09-11 2013-12-25 博益(天津)气动技术研究所有限公司 Device enabling suction type nitrogen and hydrogen leakage detection instrument to be free of influences by environmental background
CN204389122U (en) * 2015-02-10 2015-06-10 天津博益气动股份有限公司 For expanding the attachment device of nitrogen hydrogen leak locator use occasion

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002062212A (en) * 2000-08-21 2002-02-28 Nkk Corp Sniffer probe and leakage inspection device using it
US20070157704A1 (en) * 2003-12-05 2007-07-12 Sensistor Technologies Ab System and method for determining the leakproofness of an object
CN1967183A (en) * 2005-11-15 2007-05-23 株式会社电装 Leak inspection device
CN101096718A (en) * 2006-06-28 2008-01-02 普莱克斯技术有限公司 Oxygen injection method
CN102574058A (en) * 2009-09-23 2012-07-11 萨默费尼根有限公司 System for preventing backflow in an ion source
CN201582450U (en) * 2009-12-14 2010-09-15 周央娣 Check valve
CN201876343U (en) * 2010-11-23 2011-06-22 天津力神电池股份有限公司 Lithium ion battery leakage detecting device
CN202533237U (en) * 2012-03-08 2012-11-14 四川省电力公司乐山电业局 Novel SF6 gas leak detector device
CN202793702U (en) * 2012-07-31 2013-03-13 安徽皖仪科技股份有限公司 Evacuating and pressurizing device for helium mass spectrometer leak detection
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CN103471782A (en) * 2013-09-11 2013-12-25 博益(天津)气动技术研究所有限公司 Device enabling suction type nitrogen and hydrogen leakage detection instrument to be free of influences by environmental background
CN204389122U (en) * 2015-02-10 2015-06-10 天津博益气动股份有限公司 For expanding the attachment device of nitrogen hydrogen leak locator use occasion

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106017818A (en) * 2016-06-01 2016-10-12 天津博益气动股份有限公司 Suction gun probe of suction type nitrogen and hydrogen leak detector

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