CN104568335A - Helium and nitrogen mixing device for high pressure gas leak detection - Google Patents
Helium and nitrogen mixing device for high pressure gas leak detection Download PDFInfo
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- CN104568335A CN104568335A CN201410795365.8A CN201410795365A CN104568335A CN 104568335 A CN104568335 A CN 104568335A CN 201410795365 A CN201410795365 A CN 201410795365A CN 104568335 A CN104568335 A CN 104568335A
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- helium
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- high pressure
- air intake
- main pipeline
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a helium and nitrogen mixing device for high pressure gas leak detection. The helium and nitrogen mixing device comprises a main pipeline; one end of the main pipeline is a closed end; the other end of the main pipeline is an outlet end; a connector is arranged at the outlet end; two or more gas inlets are formed in the main pipeline; one gas inlet is connected with a helium cylinder; the other gas inlets are connected with nitrogen cylinders; threads are formed in the gas inlets; the helium cylinder and the nitrogen cylinders are connected with corresponding gas inlets respectively through threads; the number of the gas inlets is eight; four gas inlets are formed in one side of the main pipeline; the other four gas inlets are symmetrically formed in the other side of the main pipeline; the connector is connected with a valve; a plug is arranged at the closed end. Through the adoption of the helium and nitrogen mixing device, cylinders can be combined and connected fast, so that the gases can be mixed according to a required proportion. The helium and nitrogen mixing device has the advantages that the structure is simple; the assembly is easy; the service life is long.
Description
Technical field
The present invention relates to gases at high pressure leak detection field, particularly a kind of helium nitrogen gas mixing device for gases at high pressure leak detection.
Background technology
Oil, sleeve pipe due in processing, transport, unavoidably there is mismachining tolerance in use procedure, collide with, such environmental effects and enter well and operate the phenomenons such as inadequate specification, part screw thread can be caused cannot to reach design sealing effectiveness.And oil, after sleeve pipe couples together, once tubing and casing connecting thread leaks, wellbore integrity will be destroyed, may serious consequence be caused.So the necessary thread to entering well casing post carries out sealing propertytest.
High pressure gas leak detection is the method utilizing high pressure helium nitrogen mixture gas to realize leak detection, to injecting high pressure helium nitrogen mixture gas in tubing string, highly sensitive leak locator is utilized to carry out helium detection in tubing string screw thread outside again, within a certain period of time, leak locator is reported to the police after detecting helium, and the screw thread seal failure of oil pipe, sleeve pipe or aid is described; If leak locator is not reported to the police, then good seal is described.
Regulation in the industry standard (SY/T6872-2012) of oil, casing gas sealing detection technology, be 10%-13% for the content of helium in the helium nitrogen mixture gas that detects, a kind of helium nitrogen gas mixing device is not also had, better to realize the quick connection of gas cylinder and the control of helium nitrogen ratio in prior art.
Summary of the invention
The object of the embodiment of the present invention is the defect for above-mentioned prior art, provides a kind of can realization to connect the Rapid Combination of gas cylinder, reaches the helium nitrogen gas mixing device for gases at high pressure leak detection that gas mixes to scale.
The technical scheme that the present invention takes to achieve these goals is:
A kind of helium nitrogen gas mixing device for gases at high pressure leak detection, comprise main pipeline, described main pipeline one end is blind end, the other end is endpiece, described endpiece is provided with joint, described main pipeline is provided with plural air intake opening, and an air intake opening is for connecting helium tank, and all the other air intake openings are for connecting nitrogen cylinder.
Described air intake opening is provided with screw thread, and described helium tank and nitrogen cylinder are threaded connection and are connected corresponding air intake opening respectively.
Described air intake opening is 8.
The side of described main pipeline is provided with 4 air intake openings, and opposite side is arranged with 4 air intake openings.
Described joint is connected with valve.
Described blind end is provided with plug.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
Adopt the helium nitrogen gas mixing device for gases at high pressure leak detection of the present invention, can realize connecting the Rapid Combination of gas cylinder, reach gas and mix to scale, there is structure simple, be easy to assembling, the advantage of long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the helium nitrogen gas mixing device for gases at high pressure leak detection provided in the embodiment of the present invention 1.
In figure:
1-plug; 2-air intake opening; 3-main pipeline; 4-joint; 5-blind end, 6-endpiece; 7-valve.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
See Fig. 1, a kind of helium nitrogen gas mixing device for gases at high pressure leak detection, comprise main pipeline 3, main pipeline 3 one end is blind end 5, the other end is endpiece 6, and described endpiece is provided with joint 4, and described main pipeline 3 is provided with plural air intake opening 2, an air intake opening 2 is for connecting helium tank, and all the other air intake openings 2 are for connecting nitrogen cylinder.
The present invention utilizes the passage of multinomial gas inlet, realizes connecting the Rapid Combination of gas cylinder, to reach the object that gas mixes to scale, has compact conformation, the advantage that cost is low, easy to maintenance.
In the present embodiment, for realizing quick connection, air intake opening 2 is provided with screw thread, and described helium tank and nitrogen cylinder are threaded connection and are connected corresponding air intake opening respectively.
In the present embodiment, air intake opening 2 is 8.
The present invention according to actual needs, an air intake opening connects helium tank, all the other 7 air intake openings connect nitrogen cylinder, the conveying mixed volume ratio of actual nitrogen and helium is made to reach 7:1, meet actual in nitrogen and helium ratio demand in detection, use device of the present invention, ensure that nitrogen and helium mix according to the amount of regulation, handled easily and control.
In the present embodiment, preferably, the side of main pipeline 1 is provided with 4 air intake openings, and opposite side is arranged with 4 air intake openings.The present invention also according to the needs of inspection, can arrange more air intake opening.
In the present embodiment, joint 4 is connected with valve 7.
Mixed gas of the present invention utilizes Valve controlling to export, and can regulate the operational throughput of mixed gas, to adapt to the demand for mixed gas delivery amount in gases at high pressure leak detection.
In the present embodiment, blind end 5 is provided with plug 1.
The present invention is closed by plug one end by main pipeline, has and is easy to processing, assemble advantage easily.
Helium nitrogen gas mixing device of the present invention solves the convenient use in scene and the technical requirement of gases at high pressure leak detection.Realize rapid and convenient being connected to gas cylinder, meet site operation requirement, reach gas and mix to scale, the gas of mixing utilizes Valve controlling to export, and has the advantage that structure is simple, handling ease, cost are low and easy to maintenance.
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 (6)
1. the helium nitrogen gas mixing device for gases at high pressure leak detection, it is characterized in that, comprise main pipeline, described main pipeline one end is blind end, the other end is endpiece, and described endpiece is provided with joint, and described main pipeline is provided with plural air intake opening, an air intake opening is for connecting helium tank, and all the other air intake openings are for connecting nitrogen cylinder.
2. the helium nitrogen gas mixing device for gases at high pressure leak detection according to claim 1, it is characterized in that, described air intake opening is provided with screw thread, and described helium tank and nitrogen cylinder are threaded connection and are connected corresponding air intake opening respectively.
3. the helium nitrogen gas mixing device for gases at high pressure leak detection according to claim 2, it is characterized in that, described air intake opening is 8.
4. the helium nitrogen gas mixing device for gases at high pressure leak detection according to claim 3, it is characterized in that, the side of described main pipeline is provided with 4 air intake openings, and opposite side is arranged with 4 air intake openings.
5. the helium nitrogen gas mixing device for gases at high pressure leak detection according to any one of claim 1-4, it is characterized in that, described joint is connected with valve.
6. the helium nitrogen gas mixing device for gases at high pressure leak detection according to claim 5, it is characterized in that, described blind end is provided with plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795365.8A CN104568335A (en) | 2014-12-18 | 2014-12-18 | Helium and nitrogen mixing device for high pressure gas leak detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795365.8A CN104568335A (en) | 2014-12-18 | 2014-12-18 | Helium and nitrogen mixing device for high pressure gas leak detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104568335A true CN104568335A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410795365.8A Pending CN104568335A (en) | 2014-12-18 | 2014-12-18 | Helium and nitrogen mixing device for high pressure gas leak detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146820A (en) * | 2020-09-24 | 2020-12-29 | 华能山东石岛湾核电有限公司 | Helium medium valve tightness test device and test method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2149557Y (en) * | 1993-01-21 | 1993-12-15 | 陈木荣 | Novel structure Venturi gas nozzle |
| US5614655A (en) * | 1993-03-12 | 1997-03-25 | Siemens Aktiengesellschaft | Gas mixing device |
| CN2403564Y (en) * | 2000-01-26 | 2000-11-01 | 东莞市大朗信易电热厂 | Double-material proportional valve |
| CN2715834Y (en) * | 2003-12-18 | 2005-08-10 | 中国科学院电子学研究所 | Sample gas distributor |
| JP2006118860A (en) * | 2004-10-19 | 2006-05-11 | Shimadzu Corp | Gas chromatograph |
| CN101136378A (en) * | 2007-09-10 | 2008-03-05 | 株洲南车时代电气股份有限公司 | Semiconductor device, packaging air tightness detecting method and distribution device |
| CN102091544A (en) * | 2010-12-09 | 2011-06-15 | 中国人民解放军军事医学科学院 | Gas allocation device |
| CN102631846A (en) * | 2012-04-16 | 2012-08-15 | 江苏大学 | Method and device for mixing various gases according to specified proportion |
| CN202974595U (en) * | 2012-10-31 | 2013-06-05 | 美的集团股份有限公司 | High-precision gas leak detection device |
| CN204269312U (en) * | 2014-12-18 | 2015-04-15 | 四川安东油气工程技术服务有限公司 | A kind of helium nitrogen gas mixing device for gases at high pressure leak detection |
-
2014
- 2014-12-18 CN CN201410795365.8A patent/CN104568335A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2149557Y (en) * | 1993-01-21 | 1993-12-15 | 陈木荣 | Novel structure Venturi gas nozzle |
| US5614655A (en) * | 1993-03-12 | 1997-03-25 | Siemens Aktiengesellschaft | Gas mixing device |
| CN2403564Y (en) * | 2000-01-26 | 2000-11-01 | 东莞市大朗信易电热厂 | Double-material proportional valve |
| CN2715834Y (en) * | 2003-12-18 | 2005-08-10 | 中国科学院电子学研究所 | Sample gas distributor |
| JP2006118860A (en) * | 2004-10-19 | 2006-05-11 | Shimadzu Corp | Gas chromatograph |
| CN101136378A (en) * | 2007-09-10 | 2008-03-05 | 株洲南车时代电气股份有限公司 | Semiconductor device, packaging air tightness detecting method and distribution device |
| CN102091544A (en) * | 2010-12-09 | 2011-06-15 | 中国人民解放军军事医学科学院 | Gas allocation device |
| CN102631846A (en) * | 2012-04-16 | 2012-08-15 | 江苏大学 | Method and device for mixing various gases according to specified proportion |
| CN202974595U (en) * | 2012-10-31 | 2013-06-05 | 美的集团股份有限公司 | High-precision gas leak detection device |
| CN204269312U (en) * | 2014-12-18 | 2015-04-15 | 四川安东油气工程技术服务有限公司 | A kind of helium nitrogen gas mixing device for gases at high pressure leak detection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146820A (en) * | 2020-09-24 | 2020-12-29 | 华能山东石岛湾核电有限公司 | Helium medium valve tightness test device and test method thereof |
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Application publication date: 20150429 |
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