CN203178167U - Pipeline joint coating anticorrosive coating hot water resistant soaking accelerated test device - Google Patents
Pipeline joint coating anticorrosive coating hot water resistant soaking accelerated test device Download PDFInfo
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- CN203178167U CN203178167U CN2013200902336U CN201320090233U CN203178167U CN 203178167 U CN203178167 U CN 203178167U CN 2013200902336 U CN2013200902336 U CN 2013200902336U CN 201320090233 U CN201320090233 U CN 201320090233U CN 203178167 U CN203178167 U CN 203178167U
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- 238000012360 testing method Methods 0.000 title claims abstract description 114
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000011248 coating agent Substances 0.000 title claims abstract description 30
- 238000000576 coating method Methods 0.000 title claims abstract description 30
- 238000002791 soaking Methods 0.000 title description 3
- 238000010438 heat treatment Methods 0.000 claims abstract description 51
- 230000001133 acceleration Effects 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 5
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000005485 electric heating Methods 0.000 abstract 4
- 238000005260 corrosion Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model discloses a pipeline joint coating anticorrosive coating hot water resistant soaks accelerated test device belongs to the anticorrosive field of petroleum pipeline. The test device at least comprises: the device comprises a sealed container tank body, a container upper cover, a water filling port, a ball valve, a pressure gauge, an electromagnetic valve, a jacket and related pipelines, wherein the sealed container tank body is arranged in an inner cavity of the jacket, and a heating controller and a pressure test pump are arranged outside the jacket; an electric heating coil is arranged on the outer wall of the tank body of the sealed container, one end of the electric heating coil penetrates through the clamping sleeve and is connected with the anode of the heating controller through a related lead, and the other end of the electric heating coil penetrates through the clamping sleeve and is connected with the cathode of the heating controller through a related lead to form a circulation loop. The heating controller controls the heat conduction oil in the heating jacket of the electric heating coil pipe to ensure that the water in the sealed container tank reaches and is stabilized at the set test temperature, and the pressure test pump ensures that the water in the sealed container tank reaches and is stabilized at the set test pressure.
Description
Technical field
The utility model relates to the petroleum pipe line corrosion-resistant field, particularly the heat-resisting water logging bubble of a kind of joint coating on pipeline anticorrosive coat acceleration test apparatus.
Background technology
Pipeline corrosion protection refers to the measure for slowing down or preventing pipeline under the chemistry of inside and outside medium, electrochemical action or be etched and gone bad by the metabolic activity of microorganism; Avoid pipeline, suffer the guard technology of soil, air and pumped (conveying) medium (oil, rock gas etc.) corrosion.Because the pipeline of transferring oil, gas is in the complicated soil environment mostly, the medium of carrying is be corrosive also more, thereby inner-walls of duct and outer wall all may be corroded.The perforation in case pipeline is corroded namely causes the leakage of oil, gas, transportation is interrupted, and is polluted the environment, but even fire hazard, work the mischief.Therefore, prevent that corrosive pipeline from being the important content of pipework.
At present, the repaired mouth quality of pipeline anticorrosion coating remains the important indicator of restriction pipeline whole service life.China's act.std is to the regulation of joint coating on pipeline anticorrosive coat, comparatively pay attention to the performance of preventing corrosion of repaired mouth layer material itself, stipulated more performance project, more the performance of preventing corrosion of repaired mouth layer installation system is stipulated, comprise several indexs such as outward appearance, thickness, impact strength, cathodic disbonding, heat-resisting water logging bubble, wherein heat-resisting water logging bubble can characterize the performance of repaired mouth in the pipeline anticorrosion coating actual moving process, more can characterize the usability of shrink belt repaired mouth.
In realizing process of the present utility model, the inventor finds that there is following problem at least in prior art:
Proposed joint coating on pipeline is carried out water-fast leakproofness test with shrink belt among the standard NACE RP0303 of NACE's (being called for short NACE), testing requirements is installed on shrink belt on the plane steel plate, constant temperature soaked 120 days, take out and observe, requiring to soak the back shrink belt does not have cracking, bubbles, anhydrous under the film.Because what adopt in this test is that circular pipe in plane test plate (panel) and the actual motion has certain difference, test result is bad with the joint coating on pipeline layer operating position correspondence of reality.
Test method and NACE standard basically identical are steeped in heat-resisting water logging about the joint coating on pipeline anticorrosive coat among China standard GB/T23257-2009, but the circular test section that adopts is tested.Repaired mouth pipeline section test specimen is immersed in entirely fills in the Water Tank with Temp.-controlled, constant temperature soaks that (soaking temperature of high temperature modification shrink belt test specimen is 70 ℃; The soaking temperature of normal temperature type shrink belt test specimen is 50 ℃) 120 days, take out and observe, requiring to soak back shrink belt installation system does not have cracking, foaming, anhydrous under the film.This method has been used circular test section, the operating position at more approaching scene, and the test findings that obtains and actual conditions accordance are better.But this test period is longer, is 120 days, and duration of test replenishes the water in the tank as required, and needs regularly to take out to observe, and test process is long and complicated.And pipeline is subjected to soil or other pressure effect in the meeting buried in service of reality, if in heat-resisting water logging bubble method of testing, introduce higher temperature and pressure simultaneously, with the environment that more meets in the pipeline actual motion, and pressure and temperature will accelerate to investigate the heat-resisting water logging bubble performance of anticorrosive coat.But up to now, at home and abroad there is no the report that adopts the pressing mode of heating to carry out the test of the heat-resisting water logging bubble of joint coating on pipeline anticorrosive coat.
Summary of the invention
In order to solve prior art problems, the utility model embodiment provides the heat-resisting water logging bubble of a kind of joint coating on pipeline anticorrosive coat acceleration test apparatus.Test is quick, and test operation is simple and convenient, and test findings is accurate.Described technical scheme is as follows:
The heat-resisting water logging bubble of a kind of joint coating on pipeline anticorrosive coat acceleration test apparatus, this test unit comprises at least: airtight container tank body, container upper cover, filler, ball valve, tensimeter, solenoid valve, chuck and associated pipe, described airtight container tank body is arranged on described chuck inner chamber, and described chuck is outside equipped with heating controller, test pump; Described airtight container tank wall is provided with the electrical heating coil pipe, one end of described electrical heating coil pipe passes described chuck connects described heating controller by associated tracks positive pole, the other end passes described chuck and connects the negative pole of described heating controller by associated tracks, forms closed circuit.
Further, described chuck outer wall is provided with outer muff.
Particularly, described airtight container tank body bottom connects with described test pump by associated pipe, and described airtight container tank base is provided with the pipeline that discharges water.
Particularly, described airtight container tank body top is provided with described container upper cover, and described container upper cover is provided with described filler, described ball valve, described tensimeter, described solenoid valve.
Particularly, described chuck bottom is connected with in-line, and described chuck bottom is connected with the oil extraction pipeline.
Further, described heating controller is controlled described electrical heating coil pipe and is heated the interior conduction oil of described chuck, test water in the described airtight container tank body is reached and be stabilized in test temperature 20-90 ℃ of setting, the control accuracy scope of described test temperature is ± 0.5 ℃.
Further, described test pump pressurization makes the interior test water of described airtight container tank body reach and be stabilized in the test pressure 0.1-1.4MPa of setting, and the control accuracy scope of described test pressure is ± 0.01MPa.
Further, the end of described test pump is connected with ready-packaged joint.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
By the conduction oil in the heating controller control electrical heating coil pipe heating jacket, make water in the airtight container tank body reach and be stabilized in the test temperature of setting, make the test pressure that water reaches and constant voltage is being set in the airtight container tank body by test pump; Only adopt the immersion way of heating to compare with prior art, accelerate to have investigated the hot water resistance energy of anticorrosive coat, shortened test period; Adopt test pump and heating controller control accuracy height, improved precision of test result.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the heat-resisting water logging bubble of the joint coating on pipeline anticorrosive coat acceleration test apparatus structural representation that the utility model embodiment provides.
Each symbolic representation implication is as follows among the figure:
1 airtight container tank body, 2 container upper covers, 3 filler, 4 ball valves, 5 tensimeters, 6 solenoid valves, 7 chucks, 8 heating controllers, 9 test pumps, 10 pipelines that discharge water, 11 oil extraction pipelines, 12 in-lines, 13 outer muffs, 14 electrical heating coil pipes.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model embodiment is described in further detail.
Referring to shown in Figure 1, the utility model embodiment provides the heat-resisting water logging bubble of a kind of joint coating on pipeline anticorrosive coat acceleration test apparatus, and this test unit comprises at least: parts such as airtight container tank body 1, container upper cover 2, filler 3, ball valve 4, tensimeter 5, solenoid valve 6, chuck 7, heating controller 8, test pump 9, the pipeline 10 that discharges water, oil extraction pipeline 11, in-line 12, outer muff 13, electrical heating coil pipe 14; Conduction oil by in heating controller 8 control electrical heating coil pipes 14 heating jackets 7 makes airtight container tank body 1 interior water reach and be stabilized in the test temperature of setting, makes the test pressure that airtight container tank body 1 interior water reaches and constant voltage is being set by test pump 9.
Particularly, as preferably, described airtight container tank body 1, container upper cover 2, chuck 7 are made by stainless steel material, described airtight container tank body 1 is right cylinder, diameter is 100-1000mm, highly be 100-1000mm, airtight container tank body 1 top is provided with the container upper cover 2 that is complementary with 1 moulding of airtight container tank body, described container upper cover 2 is provided with filler 3, ball valve 4, tensimeter 5, solenoid valve 6, is loaded with in the airtight container tank body 1 to carry out the heat-resisting water logging bubble of joint coating on pipeline anticorrosive coat test water; Described airtight container tank body 1 is arranged on chuck 7 inner chambers, described heating controller 8, test pump 9 are arranged on chuck 7 outsides, described airtight container tank body 1 outer wall is provided with the electrical heating coil pipe 14 of shape coiling in the shape of a spiral, one end of described electrical heating coil pipe 14 passes chuck 7, outer muff 13 connect heating controller 8 by associated tracks positive pole, the other end passes chuck 7, outer muff 13 and connects the negative pole of heating controller 8 by associated tracks, forms closed circuit; Because electrical heating coil pipe 14 shape in the shape of a spiral is coiled on tank body 1 outer wall, the water in the airtight container tank body 1 is heated evenly, quick heating, and be conducive to remain on temperature constant state.
Bottom one side of described airtight container tank body 1 connects with test pump 9 by associated pipe, by test pump 9 pressurizations, make airtight container tank body 1 interior water reach and be stabilized in the test pressure of setting, described test pressure is set at 0.1-1.4MPa, and the control accuracy scope of described test pressure is ± 0.01MPa; The described test pump 9 optional Shanghai Chun Qi Electromechanical Technology Co., Ltd three cylinder plug constant pressure pumps of using are guaranteed high-lift and constant voltage, and working pressure is 50-500bar, and plunger is counted 1-5, has overcome the weakness that common test pump 9 lifts become with flow.The end of described test pump 9 is connected with the ready-packaged joint of prior art, and the bottom of described airtight container tank body 1 is provided with the pipeline 10 that discharges water.
Electrical heating coil pipe 14 and test pump 9 and the heating controller 8 of the utility model embodiment by the coiling of set spiral fashion makes water in the airtight container tank body 1 remain on the temperature and pressure value of setting, the hot water resistance energy that anticorrosive coat has been investigated in acceleration has shortened test period.
Particularly, described chuck 7 is right cylinder or cube, external wall of upper portion is provided with outer muff 13, described outer muff 13 can be selected foamed plastic for use, bottom one side of described chuck 7 is connected with in-line 12, the bottom is connected with oil extraction pipeline 11, falling heat-transfer oil in the described chuck 7, by the conduction oil in heating controller 8 control electrical heating coil pipes 14 heating jackets 7, make airtight container tank body 1 interior water reach and be stabilized in the test temperature of setting, the water test temperature that described heating controller 8 can be controlled in the airtight container tank body 1 is set at 20-90 ℃, and the control accuracy scope of described test temperature is ± 0.5 ℃.
Described ball valve 4, tensimeter 5, solenoid valve 6, heating controller 8, test pump 9, electrical heating coil pipe 14 are the prior art commercially available prod.
The utility model embodiment carries out the heat-resisting water logging bubble of joint coating on pipeline anticorrosive coat accelerated test test process:
1) before the test, will fill with conduction oil in the chuck 7 by the in-line 12 of chuck 7 bottoms;
2) open container upper cover 2, preventing corrosion of repaired mouth layer test section put into the water of airtight container tank body 1, container upper cover 2 is installed, cover 23 places, filler from container, connect the water source and will fill with water in the airtight container tank body 1, test section is fully immersed in the water, when water filling, open the ball valve 4 at airtight container tank body 1 top, the air in the airtight container tank body 1 is discharged fully, when having water to overflow ball valve 4 is closed;
3) temperature and the conduction oil temperature of water in the airtight container tank body 1 are set, starting heating controller 8 control electrical heating coil pipes 14 heats up the heat-conducting oil heating in the chuck 7, water in the airtight container tank body 1 is heated to temperature and the maintenance that sets in advance, start test pump 9, make the water in the airtight container tank body 1 rise to the pressure of setting, and pass through test pump 9 and realize dynamic constant pressures;
4) pressure and temperature begins to test after all constant, test period is 30 days, the expansion that can produce water in the process of the test raises pressure, when surpassing the pressure that sets, at this moment, the solenoid valve 6 at airtight container tank body 1 top can be opened automatically and carry out pressure release, the realization dynamic constant pressure thereby while test pump 9 is started working;
5) after the off-test, close test pump 9 and heating controller 8, open the pipeline 10 that discharges water, with the water emptying, open container upper cover 2 then, take out preventing corrosion of repaired mouth layer test section and observe, and log.
In addition, the advantage that also has of the utility model embodiment:
Through the heat-resisting water logging bubble of the joint coating on pipeline anticorrosive coat accelerated test result of test, the contrast of steeping test findings with the heat-resisting water logging of carrying out according to GB/T23257-2009 appendix N sees Table 1.
Two kinds of testing experiment result contrasts of table 1 normal temperature type shrink belt repaired mouth installation system
The result of Soak Test test shows, the test findings that 30 days heat-resisting water logging bubble result and 120 days the heat-resisting water logging of normal pressure are steeped in the heat-resisting water logging bubble of this joint coating on pipeline anticorrosive coat acceleration test apparatus is basic identical.This test unit has test fast, and strong operability is simple to operation, as a result characteristic of accurate.Can be widely used in the quick test evaluation of the heat-resisting water logging bubble performance of joint coating on pipeline place anticorrosive coat.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. acceleration test apparatus is steeped in the heat-resisting water logging of joint coating on pipeline anticorrosive coat, this test unit comprises at least: airtight container tank body (1), container upper cover (2), filler (3), ball valve (4), tensimeter (5), solenoid valve (6), chuck (7) and associated pipe, described airtight container tank body (1) is arranged on described chuck (7) inner chamber, it is characterized in that described chuck (7) is outside equipped with heating controller (8), test pump (9); Described airtight container tank body (1) outer wall is provided with electrical heating coil pipe (14), one end of described electrical heating coil pipe (14) passes described chuck (7) connects described heating controller (8) by associated tracks positive pole, the other end passes described chuck (7) and connects the negative pole of described heating controller (8) by associated tracks, forms closed circuit.
2. the heat-resisting water logging bubble of joint coating on pipeline anticorrosive coat according to claim 1 acceleration test apparatus is characterized in that described chuck (7) outer wall is provided with outer muff (13).
3. acceleration test apparatus is steeped in the heat-resisting water logging of joint coating on pipeline anticorrosive coat according to claim 1, it is characterized in that, described airtight container tank body (1) bottom connects with described test pump (9) by associated pipe, and described airtight container tank body (1) bottom is provided with the pipeline that discharges water (10).
4. acceleration test apparatus is steeped in the heat-resisting water logging of joint coating on pipeline anticorrosive coat according to claim 1, it is characterized in that, described airtight container tank body (1) top is provided with described container upper cover (2), and described container upper cover (2) is provided with described filler (3), described ball valve (4), described tensimeter (5), described solenoid valve (6).
5. the heat-resisting water logging bubble of joint coating on pipeline anticorrosive coat according to claim 1 acceleration test apparatus is characterized in that described chuck (7) bottom is connected with in-line (12), and described chuck (7) bottom is connected with oil extraction pipeline (11).
6. acceleration test apparatus is steeped in the heat-resisting water logging of joint coating on pipeline anticorrosive coat according to claim 1, it is characterized in that, described heating controller (8) the described electrical heating coil pipe of control (14) heats the conduction oil in the described chuck (7), test water in the described airtight container tank body (1) is reached and be stabilized in test temperature 20-90 ℃ of setting, the control accuracy scope of described test temperature is ± 0.5 ℃.
7. acceleration test apparatus is steeped in the heat-resisting water logging of joint coating on pipeline anticorrosive coat according to claim 1, it is characterized in that, described test pump (9) pressurization, make the interior test water of described airtight container tank body (1) reach and be stabilized in the test pressure 0.1-1.4MPa of setting, the control accuracy scope of described test pressure is ± 0.01MPa.
8. the heat-resisting water logging bubble of joint coating on pipeline anticorrosive coat according to claim 1 acceleration test apparatus is characterized in that the end of described test pump (9) is connected with ready-packaged joint.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200902336U CN203178167U (en) | 2013-02-27 | 2013-02-27 | Pipeline joint coating anticorrosive coating hot water resistant soaking accelerated test device |
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| CN2013200902336U CN203178167U (en) | 2013-02-27 | 2013-02-27 | Pipeline joint coating anticorrosive coating hot water resistant soaking accelerated test device |
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| CN203178167U true CN203178167U (en) | 2013-09-04 |
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| CN2013200902336U Expired - Lifetime CN203178167U (en) | 2013-02-27 | 2013-02-27 | Pipeline joint coating anticorrosive coating hot water resistant soaking accelerated test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007055A (en) * | 2013-02-27 | 2014-08-27 | 中国石油天然气股份有限公司 | Pipeline joint coating anticorrosive coating hot water resistant soaking accelerated test device |
| CN109406056A (en) * | 2018-09-10 | 2019-03-01 | 中国电力科学研究院有限公司 | A kind of robust water immersion performance experimental rig |
-
2013
- 2013-02-27 CN CN2013200902336U patent/CN203178167U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007055A (en) * | 2013-02-27 | 2014-08-27 | 中国石油天然气股份有限公司 | Pipeline joint coating anticorrosive coating hot water resistant soaking accelerated test device |
| CN104007055B (en) * | 2013-02-27 | 2016-08-03 | 中国石油天然气股份有限公司 | Pipeline joint coating anticorrosive coating hot water resistant soaking accelerated test device |
| CN109406056A (en) * | 2018-09-10 | 2019-03-01 | 中国电力科学研究院有限公司 | A kind of robust water immersion performance experimental rig |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130904 Effective date of abandoning: 20160803 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |