CN201273852Y - Permeability test apparatus for pipeline opening mending anticorrosion layer - Google Patents
Permeability test apparatus for pipeline opening mending anticorrosion layer Download PDFInfo
- Publication number
- CN201273852Y CN201273852Y CNU2008201229126U CN200820122912U CN201273852Y CN 201273852 Y CN201273852 Y CN 201273852Y CN U2008201229126 U CNU2008201229126 U CN U2008201229126U CN 200820122912 U CN200820122912 U CN 200820122912U CN 201273852 Y CN201273852 Y CN 201273852Y
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- pipeline
- fermentation vat
- test
- anticorrosive coat
- joint coating
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Abstract
The utility model relates to a sealing performance testing device for an anticorrosive coating of a pipeline repaired mouth, which is used for testing the sealing performance of the anticorrosive coating at the pipeline repaired mouth. The utility model is characterized in that a soaking tank is a tank body welded by corrosion resistant plates; the height of the soaking tank is between 500 and 1200 mm; an air compressor is connected with a pressure control valve, an air discharge valve and a pressure meter through pipelines outside the soaking tank; a high pressure hose is connected with the end of the pipelines; and the end of the high pressure hose is connected with a fast joint. The utility model has the advantages that the sealing performance testing device can accurately test the sealing performance of the anticorrosive coating of the pipeline repaired mouth through simulating the field conditions, and the actual adhesive condition of the pipelines and the materials of the pipeline repaired mouth to be tested can be intuitively and accurately judged.
Description
Technical field
The utility model relates to petroleum pipe line aseptic technic field, and particularly a kind of joint coating on pipeline anticorrosive coat tightness measuring device is used for the performing leak test of joint coating on pipeline place anticorrosive coat.
Background technology
At present, the detection of the repaired mouth quality of pipeline anticorrosion coating mainly comprises conventional projects such as outward appearance, leak detection, anticorrosive coat thickness, sealing and anticorrosive coating peeling intensity, can not represent the construction quality of on-the-spot repaired mouth to a certain extent fully.
Wherein, the sealing in joint coating on pipeline zone is the deciding factor of repaired mouth quality, but the research at home and abroad at present of the sealing detection technique of repaired mouth zone anticorrosive coat seldom.The performing leak test test of industry standard SY/T0074-1993 " pipeline anticorrosion coating repaired mouth insulated enclosure test method " is carried out in the laboratory.This method illustrates whether there is leakage current by the voltage drop of having demarcated resistance in the periodic measurement hookup and being produced, and then judges the insulated enclosure performance of opening-supplementing material.This method can reflect to a certain extent opening-supplementing material to the adhesive property of former anticorrosive coat and bare metal, with the integrality of former anticorrosive coat overlap waterproof sealing and the water absorptivity of opening-supplementing material.But, when practical application, have following deficiency.At first, in the laboratory, adopt the sealing of this method test anticorrosive coating repaired mouth, too wide in the gap with the actual state of working-yard, cause error big, can not truly reflect on-the-spot repaired mouth quality; Secondly, electrochemical method needs periodic measurement, and the test period is long; Once more, on data processing, need draw test specimen resistance and time, the rectangular coordinate curve of the semilog plot of loss tangent and time and electric capacity and time, test findings is directly perceived inadequately; In addition, such test process more complicated is not easy to operation and observation.
The utility model content
The purpose of this utility model is: a kind of joint coating on pipeline anticorrosive coat tightness measuring device is provided, and under simulated field condition, the accurate joint coating on pipeline anticorrosive coat sealing of test, and can judge the actual bonding situation of opening-supplementing material intuitively and accurately.Overcome present sealing at laboratory build-in test anticorrosive coating repaired mouth, different with the actual state of working-yard, cause error big; Test period is long; Test findings is directly perceived inadequately; The test process more complicated is not easy to the deficiency of operating and observing.
The technical solution adopted in the utility model is: joint coating on pipeline anticorrosive coat tightness measuring device, comprise fermentation vat, air compressor, pressure control valve, vent valve, tensimeter and high-pressure hose composition, it is characterized in that: the casing that fermentation vat is welded into by corrosion resistant plate, casing can be square build, rectangular build, cylinder type or polygon build, and the height of fermentation vat is between 500～1200mm.In the outside of fermentation vat, air compressor connects pressure control valve, vent valve and tensimeter by pipeline, is connected with high-pressure hose in line end, and the end of high-pressure hose is connected with rapid-acting coupling.
The length of side was between 1000～1500mm when fermentation vat was square build or rectangular build.
Manometric range is 2.0MPa, and manometric precision is 0.01MPa.
Bottom at fermentation vat can be fixed with support.During test, the test pipeline section can be placed on the support.
Air compressor, pressure control valve, vent valve, tensimeter are the commercially available prod.
The beneficial effects of the utility model: the utility model joint coating on pipeline anticorrosive coat tightness measuring device, under the energy simulated field condition, the accurate joint coating on pipeline anticorrosive coat sealing of test can be judged the actual bonding situation of tested joint coating on pipeline material and pipeline intuitively and accurately.
1, joint coating on pipeline anticorrosive coat tightness measuring device of the present utility model can be used for the repaired mouth performing leak test than large-diameter pipeline, and can be used for the test section test of working-yard, and test result and actual state are close, have improved precision of test result.
2, change the pressure at repaired mouth position by adjusting control valve, observe the repaired mouth position and when begin have bubble to overflow, thereby judge the actual bonding situation of opening-supplementing material intuitively and accurately.
3, test operation is simple and convenient.
Description of drawings
Fig. 1 is the utility model joint coating on pipeline anticorrosive coat tightness measuring device structural profile synoptic diagram.
Among the figure, 1. fermentation vat, 2. air compressor, 3. pressure control valve, 4. vent valve, 5. tensimeter, 6. high-pressure hose, 7. test pipeline section.
Embodiment
Embodiment 1: the joint coating on pipeline anticorrosive coat tightness measuring device with a square build is that example is described in further detail the utility model.
Consult Fig. 1.Joint coating on pipeline anticorrosive coat tightness measuring device comprises fermentation vat 1, air compressor 2, pressure control valve 3, vent valve 4, tensimeter 5 and high-pressure hose 6 compositions.The casing that fermentation vat 1 is welded into by corrosion resistant plate.Fermentation vat 1 is square type, and the fermentation vat height is 1000mm, and the fermentation vat length of side is 1500mm.A support is arranged in the bottom of fermentation vat 1.
In the outside of fermentation vat 1, air compressor 2 connects 3, one manual exhaust valves 4 of a Manual pressure operation valve and a tensimeter 5 by pipeline.Be connected with high-pressure hose 6 in line end, the end of high-pressure hose 6 is connected with rapid-acting coupling.The range of tensimeter 5 is 2.0MPa, and the precision of tensimeter 5 is 0.01MPa.
Joint coating on pipeline anticorrosive coat performing leak test process: consult Fig. 1.Before the test, test pipeline section 5 two ends are welded with a draft tube with the tight envelope of steel plate weldering on the sealing steel plate of test pipeline section 5 one ends.Test pipeline section 5 is connected in the rapid-acting coupling by draft tube, and by high-pressure hose 6 and pipeline, is connected with air compressor 2.To test pipeline section 7 and be placed in the fermentation vat 1, test pipeline section 7 can be placed on the support.
In fermentation vat 1, at first inject tap water during test, put into the test pipeline section 7 of test usefulness, test pipeline section 7 is fully immersed in the water, start air compressor 2 then, open and regulate pressure control valve 3, close vent valve 4 simultaneously.To the 7 inner evenly pressurizations of test pipeline section, begin to test.When test pipeline section 7 internal pressures reached 0.2MPa, closing presure operation valve 3 keep-uped pressure 10 minutes, observed the variation of tensimeter 5 and the situation in repaired mouth zone, record force value situation of change.If no bubble overflows, pressurization again is until overflowing bubble.Stop pressurization.Open vent valve 4, lay down test pipeline section 7 internal pressures.
Test shows, intuitively accurate, workable characteristics that this joint coating on pipeline anticorrosive coat tightness measuring device has test result.
Claims (5)
1, a kind of joint coating on pipeline anticorrosive coat tightness measuring device, comprise fermentation vat (1), air compressor (2), pressure control valve (3), vent valve (4), tensimeter (5) and high-pressure hose (6) are formed, it is characterized in that: the casing that fermentation vat (1) is welded into by corrosion resistant plate, the height of fermentation vat (1) is between 500～1200mm, outside in fermentation vat (1), air compressor (2) connects pressure control valve (3) by pipeline, vent valve (4) and tensimeter (5), be connected with high-pressure hose (6) in line end, the end of high-pressure hose (6) is connected with rapid-acting coupling.
2, joint coating on pipeline anticorrosive coat tightness measuring device according to claim 1 is characterized in that: fermentation vat (1) is that the square build length of side is between 1000～1500mm.
3, joint coating on pipeline anticorrosive coat tightness measuring device according to claim 1 is characterized in that: fermentation vat (1) is rectangular build, and fermentation vat (1) is long to be 1500mm, and wide is 1000mm.
4, according to claim 1,2 or 3 described joint coating on pipeline anticorrosive coat tightness measuring devices, it is characterized in that: the range of tensimeter (5) is 2.0MPa, and the precision of tensimeter (5) is 0.01MPa.
5, according to claim 1,2 or 3 described joint coating on pipeline anticorrosive coat tightness measuring devices, it is characterized in that: the bottom at fermentation vat (1) is fixed with support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201229126U CN201273852Y (en) | 2008-09-27 | 2008-09-27 | Permeability test apparatus for pipeline opening mending anticorrosion layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201229126U CN201273852Y (en) | 2008-09-27 | 2008-09-27 | Permeability test apparatus for pipeline opening mending anticorrosion layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201273852Y true CN201273852Y (en) | 2009-07-15 |
Family
ID=40884199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201229126U Expired - Lifetime CN201273852Y (en) | 2008-09-27 | 2008-09-27 | Permeability test apparatus for pipeline opening mending anticorrosion layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201273852Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701864B (en) * | 2009-12-04 | 2012-05-23 | 天津市塑料研究所 | Rheid leakage testing device |
| CN104007055A (en) * | 2013-02-27 | 2014-08-27 | 中国石油天然气股份有限公司 | Accelerated test device for hot water immersion resistance of anticorrosive coating of pipeline repaired mouth |
-
2008
- 2008-09-27 CN CNU2008201229126U patent/CN201273852Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701864B (en) * | 2009-12-04 | 2012-05-23 | 天津市塑料研究所 | Rheid leakage testing device |
| CN104007055A (en) * | 2013-02-27 | 2014-08-27 | 中国石油天然气股份有限公司 | Accelerated test device for hot water immersion resistance of anticorrosive coating of pipeline repaired mouth |
| CN104007055B (en) * | 2013-02-27 | 2016-08-03 | 中国石油天然气股份有限公司 | Pipeline joint anticorrosion layer heat resisting water soaking acceleration test apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090715 |
|
| CX01 | Expiry of patent term |