CN102116701A - Method for inspecting gas tightness of argon pipelines of molten steel tank - Google Patents
Method for inspecting gas tightness of argon pipelines of molten steel tank Download PDFInfo
- Publication number
- CN102116701A CN102116701A CN 201010618992 CN201010618992A CN102116701A CN 102116701 A CN102116701 A CN 102116701A CN 201010618992 CN201010618992 CN 201010618992 CN 201010618992 A CN201010618992 A CN 201010618992A CN 102116701 A CN102116701 A CN 102116701A
- Authority
- CN
- China
- Prior art keywords
- molten steel
- argon gas
- steel jar
- pipeline
- gas pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a method for inspecting gas tightness of argon pipelines of a molten steel tank, which is simple, can effectively solve the problems that the existing air pressure test or hydrostatic test is not accurate and can reduce the equipment cost. The method can be realized by the following technical scheme: pressure gas or pressure water is introduced in the argon pipeline of the molten steel tank; the method is characterized in that before the pressure gas or the pressure water is introduced in the argon pipeline of the molten steel tank, purple litmus reagent is coated at a to-be-detected part of the argon pipeline of the molten steel tank, wherein the pressure gas is CO2 gas and the pressure water is acid pressure water, and if the purple litmus reagent of the detection part of the pipeline goes red, the result indicates that the gas tightness of the detection part is poor.
Description
Technical field
The invention relates to the bubble-tight method of check UNICOM's parts, more particularly, the present invention relates to the bubble-tight method of a kind of check molten steel jar argon gas pipeline.
Background technology
Molten steel jar argon gas pipeline is one of important component part of molten steel jar, and it is mainly used in the molten steel of containing in the molten steel jar is carried out Argon, thereby plays stirring and protective effect to molten steel, for the double refining of molten steel postorder is created good dynamic conditions.So the bubble-tight quality of molten steel jar argon gas pipeline is directly connected to the inherent quality of smelting the back steel.
Traditional air-tight test mainly contains the gas pressure test and the hydraulic testing.Gas pressure test is a kind ofly to feed under the compressed-air actuated situation at pipeline, by hand welding joint and thread seal etc. are located to smear suds and directly watched the method that whether has gas leak phenomenon by naked eyes, logical pressurized air gas is provided by air compressor, but disturbing as pipeline outer oxidation tint or pipeline because of all kinds of environmental factors originally is stainless steel or zinc-plating material, observation influence to the foam that blows afloat is bigger, not easy-to-search; Perhaps observe the tensimeter pressure drop situation in the pipeline, whether analysis seals, but this kind method requires air feed evenly and for the atomic little situation of air leakage to be difficult to discovery; Wind speed when testing in addition, humidity have considerable influence to formation lathery, bring big inconvenience to observation.The hydraulic testing then is to feed press water in pipeline, and this method is disturbed by above-mentioned all kinds of environmental factor equally, causes test findings inaccurate.
Summary of the invention
The objective of the invention is to overcome shortcoming of the prior art, provide a kind of check molten steel jar argon gas pipeline bubble-tight method, its method is simple, can effectively solve in the past the gas pressure test or the hydraulic testing and check inaccurate problem, and reduce equipment cost.
The present invention is achieved by following technical proposals: feed pressed gas or press water in molten steel jar argon gas pipeline, it is characterized in that: in molten steel jar argon gas pipeline, feed before pressed gas or the press water, the purple litmus reagent is smeared at position to be detected at described molten steel jar argon gas pipeline, and wherein said pressed gas is CO
2Gas, described press water are acid press water, redden if position purple litmus reagent detects in pipe portion, show that then described this detection position impermeability is bad.
It is further characterized in that: feed CO in described molten steel jar argon gas pipeline
2During gas, the described position to be detected of its pipeline need be smeared clear water earlier, smears described purple litmus reagent at described detection position again; Described CO
2Gas concentration 〉=90%; Described acid press water can be that 20% hydrochloric acid solution or concentration are that sulfuric acid solution more than 90% is made by add concentration in usual pressure water; The pressure of described acid press water is 1.25 times～1.5 times of described molten steel jar argon gas working pressure of pipeline.
Compared with prior art, beneficial effect of the present invention is: it meets the principle that acid reddens by the purple litmus reagent, smears the purple litmus reagent in outside, pipeline position to be detected, and feed CO in pipeline
2Gas or acid press water, when pipeline detect the position impermeability bad, when leakage is arranged, pipeline detects the CO that reveal at the position
2Gas is met water and is formed H
2CO
3Thereby the purple litmus reagent is reddened; In like manner, the purple litmus reagent is met acid press water and is also reddened, and its method of inspection is simple, easily observes the detection accuracy height.
Description of drawings
Fig. 1 is a molten steel jar argon gas pipeline air tight test position synoptic diagram in the inventive method.
Embodiment
Among Fig. 1,1 is steel pipe, and 2 is fillet weld, and 3 are butt-weld, and 4 is threaded connector, wherein 2,3,4 is pipeline air tight test position.
Specifically describe checkout procedure below:
Gas pressure test: at the position to be detected of molten steel jar argon gas pipeline, smear clear water, smear the purple litmus reagent at place to be detected then, in pipeline, feed the high pressure CO of concentration 〉=90% then as 2 among Fig. 1,3,4 places
2Gas as finding the purple litmus reagent look that reddens, can judge that impermeability is bad herein, thereby it is because the carbon dioxide of the high concentration of overflowing and water reaction generation carbonic acid make the reindeer moss look that reddens herein.
The hydraulic testing: at the position to be detected of molten steel jar argon gas pipeline, smear the purple litmus reagent, in pipeline, feed acid press water then, show then that when the purple litmus reagent reddens this detection position impermeability is bad as 2 among Fig. 1,3,4 places.Wherein, acid press water can be that 20% hydrochloric acid solution or concentration are that sulfuric acid solution more than 90% is made by add concentration in usual pressure water, and its pressure is 1.25 times～1.5 times of working pressure of pipeline.
Claims (5)
1. check the bubble-tight method of molten steel jar argon gas pipeline for one kind, in molten steel jar argon gas pipeline, feed pressed gas or press water, it is characterized in that: in molten steel jar argon gas pipeline, feed before pressed gas or the press water, the purple litmus reagent is smeared at position to be detected at described molten steel jar argon gas pipeline, and wherein said pressed gas is CO
2Gas, described press water are acid press water, redden if position purple litmus reagent detects in pipe portion, show that then described this detection position impermeability is bad.
2. the bubble-tight method of a kind of check molten steel jar argon gas pipeline according to claim 1 is characterized in that: feed CO in described molten steel jar argon gas pipeline
2During gas, the described position to be detected of its pipeline need be smeared clear water earlier, smears described purple litmus reagent at described detection position again.
3. the bubble-tight method of a kind of check molten steel jar argon gas pipeline according to claim 2 is characterized in that: described CO
2Gas concentration 〉=90%.
4. the bubble-tight method of a kind of check molten steel jar argon gas pipeline according to claim 1 is characterized in that: described acid press water can be that 20% hydrochloric acid solution or concentration are that sulfuric acid solution more than 90% is made by add concentration in usual pressure water.
5. the bubble-tight method of a kind of check molten steel jar argon gas pipeline according to claim 4, it is characterized in that: the pressure of described acid press water is 1.25 times～1.5 times of described molten steel jar argon gas working pressure of pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010618992 CN102116701A (en) | 2010-12-31 | 2010-12-31 | Method for inspecting gas tightness of argon pipelines of molten steel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010618992 CN102116701A (en) | 2010-12-31 | 2010-12-31 | Method for inspecting gas tightness of argon pipelines of molten steel tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102116701A true CN102116701A (en) | 2011-07-06 |
Family
ID=44215568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010618992 Pending CN102116701A (en) | 2010-12-31 | 2010-12-31 | Method for inspecting gas tightness of argon pipelines of molten steel tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102116701A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507096A (en) * | 2011-10-18 | 2012-06-20 | 中国石油化工股份有限公司 | Seal examining method of packer and seal examining device used in method |
| CN104089951A (en) * | 2014-06-16 | 2014-10-08 | 浙江大学 | Crack characteristic detection apparatus and detection method |
| CN105004486A (en) * | 2015-07-30 | 2015-10-28 | 中国一冶集团有限公司 | Large-scale spherical tank leak test method |
| CN105865719A (en) * | 2016-03-31 | 2016-08-17 | 广西大学 | Rotary compressor internal gas leakage test platform and test method thereof |
| CN109443651A (en) * | 2018-12-25 | 2019-03-08 | 海宁市英德赛电子有限公司 | The leak hunting method of extraordinary electronic gas conveyance conduit |
| CN110514362A (en) * | 2019-08-30 | 2019-11-29 | 胡承翔 | A kind of graphene air tightness detection equipment using colour switching |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1633589A (en) * | 2002-02-12 | 2005-06-29 | 汤姆因文特公司 | Device and method for detection/indication of liquid leakage |
| CN101858868A (en) * | 2010-05-20 | 2010-10-13 | 同济大学 | Method and device for testing distress in concrete |
-
2010
- 2010-12-31 CN CN 201010618992 patent/CN102116701A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1633589A (en) * | 2002-02-12 | 2005-06-29 | 汤姆因文特公司 | Device and method for detection/indication of liquid leakage |
| CN101858868A (en) * | 2010-05-20 | 2010-10-13 | 同济大学 | Method and device for testing distress in concrete |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507096A (en) * | 2011-10-18 | 2012-06-20 | 中国石油化工股份有限公司 | Seal examining method of packer and seal examining device used in method |
| CN102507096B (en) * | 2011-10-18 | 2014-02-19 | 中国石油化工股份有限公司 | Seal examining method of packer and seal examining device used in method |
| CN104089951A (en) * | 2014-06-16 | 2014-10-08 | 浙江大学 | Crack characteristic detection apparatus and detection method |
| CN104089951B (en) * | 2014-06-16 | 2017-02-22 | 浙江大学 | Crack characteristic detection method |
| CN105004486A (en) * | 2015-07-30 | 2015-10-28 | 中国一冶集团有限公司 | Large-scale spherical tank leak test method |
| CN105865719A (en) * | 2016-03-31 | 2016-08-17 | 广西大学 | Rotary compressor internal gas leakage test platform and test method thereof |
| CN109443651A (en) * | 2018-12-25 | 2019-03-08 | 海宁市英德赛电子有限公司 | The leak hunting method of extraordinary electronic gas conveyance conduit |
| CN110514362A (en) * | 2019-08-30 | 2019-11-29 | 胡承翔 | A kind of graphene air tightness detection equipment using colour switching |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102116701A (en) | Method for inspecting gas tightness of argon pipelines of molten steel tank | |
| CN202119596U (en) | Device for detecting air tightness of brake pipe system compaction type fast-assembling pipe joint | |
| WO2022267075A1 (en) | Pipe pressure resistance testing device and testing method thereof | |
| CN206788047U (en) | Manganese ion on-Line Monitor Device | |
| CN101271034A (en) | Gas meter leak tightness detecting method and device thereof | |
| CN103913279A (en) | Method and device for testing leakproofness of oil cooler by mixing helium and air | |
| CN112697811A (en) | Surface inspection method for low-magnetic anchor chain | |
| CN103175682A (en) | Multi-diameter flanged hydraulic test multifunction device for valves | |
| CN104359630A (en) | Portable machine box gas tightness leak detector | |
| CN207472871U (en) | A kind of offshore oil platform production waste monitors circulation device on-line | |
| CN103698095A (en) | Fire suppression bottle sealing performance detecting device and detecting method thereof | |
| CN200952970Y (en) | Condenser air tightness detecting tool | |
| CN216410654U (en) | Valve housing strength detection device | |
| CN205138842U (en) | Sampler | |
| CN101915643A (en) | Welding line air pressure leakage check technology | |
| CN201772977U (en) | Detection device for monitoring leakage detecting tube of urea high-pressure equipment | |
| CN201163232Y (en) | Leak tightness detection apparatus for dry type gas meter | |
| CN102494849A (en) | Air tightness detecting device and implementation method for same | |
| CN209342210U (en) | A kind of automation gas standard device | |
| CN210108648U (en) | Special needle head for detecting welding airtightness of waterproof board | |
| CN103499421B (en) | Continous way large-scale storage tank base plate weld joint vacuum detector | |
| CN207595755U (en) | A kind of hydrochloric acid tank | |
| CN219511902U (en) | Chlorine purity detecting system in operation process of industrial electrolytic tank | |
| CN201273852Y (en) | Permeability test apparatus for pipeline opening mending anticorrosion layer | |
| CN206208469U (en) | Metal composite blank vacuum leak detecting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110706 |