CN104330349A - Hydrogen induced crack (HIC) test device - Google Patents
Hydrogen induced crack (HIC) test device Download PDFInfo
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- CN104330349A CN104330349A CN201410549823.XA CN201410549823A CN104330349A CN 104330349 A CN104330349 A CN 104330349A CN 201410549823 A CN201410549823 A CN 201410549823A CN 104330349 A CN104330349 A CN 104330349A
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- hic
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- gas cylinder
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Abstract
The invention relates to a hydrogen induced crack (HIC) test device which includes a gas cylinder cabinet (1), a hydrogen sulfide gas cylinder (2), a filtering device (3), a gas source distribution device (4), two HIC test barrels (5) and a wind suction cabinet (6), the hydrogen sulfide gas cylinder (2) is arranged in the gas cylinder cabinet (1), the filtering device (3) includes two sodium hydroxide solution bottles (3.1), and the gas source distribution device (4) and the HIC test barrels (5) are arranged in the wind suction cabinet (6). The hydrogen induced crack (HIC) test device has good sealing property and high safety performance.
Description
Technical field
The present invention relates to a kind of hydrogen induced cracking test unit.Belong to measurement mechanism technical field.
Background technology
Hydrogen induced cracking (Hydrogen Induced Cracking, is abbreviated as HIC), is present in pipe line steel and weld seam as a kind of defect.Large quantifier elimination shows, HIC is little to the conventional intensity Index Influence of steel, but comparatively large on toughness index impact, and the fragility tendency of steel can be made to increase.
In the acid gas transmission line of the domestic sulfide hydrogen in Sichuan, have been found that because HIC causes a lot of accidents of breaking, bring serious economic loss to country.At present, China is comparing the Properties of HIC resistance tendency research of system to pipe line steel, girth joint accounts for sizable proportion in whole piece pipeline, in recent years on the occasion of the climax of China's natural gas pipe-line construction, for ensureing the reliability of gas transmission line girth joint quality, carry out and be very important to the research of gas transmission line girth joint Properties of HIC resistance, the achievement of research is directly used in engineering reality, for the construction of oil and gas pipelines can provide technical guarantee.
The driving force that hydrogen induced cracking (HIC) generates crackle is the air pressure that the hydrogen by entering in steel produces, and just produce strain cracking when hydrogen-pressure exceedes material yield strength, between crackle, expansion is connected to form stepwise cracking (SWC) mutually.Generalized case, H
2the products such as the pipe line steel of S corrosion environment and pressure vessel steel all need to do HIC Performance Detection.
The existing device being used for doing HIC test sample is put into for a long time the simple and easy closed container being exposed to hydrogenation, and measure the degree that steel interior tissue cracks, to determine the quality grade of steel, this kind of device easily has H
2s Leakage Gas, has potential safety hazard.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide a kind of hydrogen induced cracking test unit, this device good leak tightness, security performance is high.
The object of the present invention is achieved like this:
A kind of hydrogen induced cracking test unit, be characterized in: described device comprises gas cabinet, sulfuretted hydrogen gas cylinder, filtration unit, source of the gas distributor, two HIC test bucket and air draught cabinet, described sulfuretted hydrogen gas cylinder is arranged in gas cabinet, described filtration unit comprises two sodium hydroxide solution bottles, described source of the gas distributor and HIC test bucket and are arranged in air draught cabinet, the open top of air draught cabinet, the outlet of described sulfuretted hydrogen gas cylinder accesses two HIC respectively through source of the gas distributor and tests bucket, the outlet of two HIC test buckets accesses two sodium hydroxide solution bottles successively through source of the gas distributor, the outlet access gas cabinet of sodium hydroxide solution bottle.
Compared with prior art, the invention has the beneficial effects as follows:
1. a kind of hydrogen induced cracking test unit of the present invention, the simple and whole process of the test of structure is all carried out in closed container, therefore good leak tightness.
2. a kind of hydrogen induced cracking test unit of the present invention, a waste gas part after hydrogen sulfide gas and specimen reaction drains into hydrogen sulfide tail gas purification plant from the top of air draught cabinet, another part along dotted line in figure through sodium hydroxide solution bottle reaction filter laggard enter gas cabinet, hydrogen sulfide tail gas purification plant is drained into eventually through air-suction duct, process of the test hydrogen sulfide tail gas No leakage, security is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of hydrogen induced cracking test unit of the present invention.
In figure:
Gas cabinet 1,
Sulfuretted hydrogen gas cylinder 2,
Filtration unit 3,
Source of the gas distributor 4,
HIC tests bucket 5,
Air draught cabinet 6.
Embodiment
See Fig. 1, the present invention relates to a kind of hydrogen induced cracking test unit, it comprises gas cabinet 1, sulfuretted hydrogen gas cylinder 2, filtration unit 3, source of the gas distributor 4, two HIC test buckets 5 and air draught cabinet 6, described sulfuretted hydrogen gas cylinder 2 is arranged in gas cabinet 1, described filtration unit 3 comprises two sodium hydroxide solution bottles 3.1, described source of the gas distributor 4 and HIC test bucket 5 and are arranged in air draught cabinet 6, air draught cabinet 6 open top.
In Fig. 1, solid line is that source of the gas enters from sulfuretted hydrogen gas cylinder 2 flow direction that HIC tests bucket 5, dotted line is that reacted waste gas tests from HIC the flow direction that bucket 5 is back to gas cabinet 1, the outlet of described sulfuretted hydrogen gas cylinder 2 accesses two HIC respectively through source of the gas distributor 4 and tests bucket 5, outlet that two HIC test buckets 5 accesses two sodium hydroxide solution bottles 3.1 successively through source of the gas distributor 4, the outlet access gas cabinet 1 of sodium hydroxide solution bottle 3.1, the waste gas entering gas cabinet 1 is draining into hydrogen sulfide tail gas purification plant by air-suction duct.
Principle of work: enter HIC from sulfuretted hydrogen gas cylinder 2 hydrogen sulfide gas out along solid line Fig. 1 and test bucket 5, a waste gas part after hydrogen sulfide gas and specimen reaction drains into hydrogen sulfide tail gas purification plant from the top of air draught cabinet 6, another part along dotted line in Fig. 1 through sodium hydroxide solution bottle 2 react filter laggard enter gas cabinet 1, this part waste gas drains into hydrogen sulfide tail gas purification plant eventually through air-suction duct.
Claims (1)
1. a hydrogen induced cracking test unit, it is characterized in that: described device comprises gas cabinet (1), sulfuretted hydrogen gas cylinder (2), filtration unit (3), source of the gas distributor (4), two HIC test bucket (5) and air draught cabinet (6), described sulfuretted hydrogen gas cylinder (2) is arranged in gas cabinet (1), described filtration unit (3) comprises two sodium hydroxide solution bottles (3.1), described source of the gas distributor (4) and HIC test bucket (5) and are arranged in air draught cabinet (6), air draught cabinet (6) open top, the outlet of described sulfuretted hydrogen gas cylinder (2) accesses two HIC respectively through source of the gas distributor (4) and tests bucket (5), the outlet of two HIC test bucket (5) accesses two sodium hydroxide solution bottles (3.1) successively through source of the gas distributor (4), outlet access gas cabinet (1) of sodium hydroxide solution bottle (3.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410549823.XA CN104330349A (en) | 2014-10-17 | 2014-10-17 | Hydrogen induced crack (HIC) test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410549823.XA CN104330349A (en) | 2014-10-17 | 2014-10-17 | Hydrogen induced crack (HIC) test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104330349A true CN104330349A (en) | 2015-02-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410549823.XA Pending CN104330349A (en) | 2014-10-17 | 2014-10-17 | Hydrogen induced crack (HIC) test device |
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| CN (1) | CN104330349A (en) |
Citations (6)
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|---|---|---|---|---|
| KR20040065659A (en) * | 2003-01-15 | 2004-07-23 | 한국생산기술연구원 | Device of testing the deflection, stress and destruens of sulfide |
| CN101718766A (en) * | 2008-10-09 | 2010-06-02 | 北京三聚环保新材料股份有限公司 | Device for measuring breakthrough sulphur capacity and using method thereof |
| CN201503425U (en) * | 2009-09-16 | 2010-06-09 | 中国石油化工股份有限公司 | Corrosion inhibitor evaluation testing device |
| CN201662499U (en) * | 2009-08-14 | 2010-12-01 | 塔铁科株式会社 | Measuring device for hydrogen-induced crack of steels |
| CN202061516U (en) * | 2011-04-07 | 2011-12-07 | 中国石油天然气股份有限公司 | Associated gas hydrogen sulfide adsorption analog device for crude oil storage tank opening |
| CN204188501U (en) * | 2014-10-17 | 2015-03-04 | 江阴利鑫环保科技有限公司 | Hydrogen induced cracking test unit |
-
2014
- 2014-10-17 CN CN201410549823.XA patent/CN104330349A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040065659A (en) * | 2003-01-15 | 2004-07-23 | 한국생산기술연구원 | Device of testing the deflection, stress and destruens of sulfide |
| CN101718766A (en) * | 2008-10-09 | 2010-06-02 | 北京三聚环保新材料股份有限公司 | Device for measuring breakthrough sulphur capacity and using method thereof |
| CN201662499U (en) * | 2009-08-14 | 2010-12-01 | 塔铁科株式会社 | Measuring device for hydrogen-induced crack of steels |
| CN201503425U (en) * | 2009-09-16 | 2010-06-09 | 中国石油化工股份有限公司 | Corrosion inhibitor evaluation testing device |
| CN202061516U (en) * | 2011-04-07 | 2011-12-07 | 中国石油天然气股份有限公司 | Associated gas hydrogen sulfide adsorption analog device for crude oil storage tank opening |
| CN204188501U (en) * | 2014-10-17 | 2015-03-04 | 江阴利鑫环保科技有限公司 | Hydrogen induced cracking test unit |
Non-Patent Citations (4)
| Title |
|---|
| 周淑珍;曹战钊;张玲芝;周群;李凤霞;: "管线钢抗氢致开裂(HIC)性能试验方法的研究" * |
| 孙耀峰,高萍: "硫化物应力腐蚀试验中硫化氢通气装置的改进" * |
| 张鹏;杨彪;董事尔;彭星煜;唐建荣;: "L245A级钢管在湿H_2S环境下的氢致开裂(HIC)与硫化物应力腐蚀开裂(SSCC)试验研究" * |
| 肖利明,李桂芝: "国内管线钢抗氢致裂纹性能的评定" * |
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