CN102520000A - Pipeline internal coating thermal stress simulator and internal coating adhesion force testing method - Google Patents
Pipeline internal coating thermal stress simulator and internal coating adhesion force testing method Download PDFInfo
- Publication number
- CN102520000A CN102520000A CN2011104568208A CN201110456820A CN102520000A CN 102520000 A CN102520000 A CN 102520000A CN 2011104568208 A CN2011104568208 A CN 2011104568208A CN 201110456820 A CN201110456820 A CN 201110456820A CN 102520000 A CN102520000 A CN 102520000A
- Authority
- CN
- China
- Prior art keywords
- natural gas
- gas line
- segment pipe
- internal coating
- coating
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a pipeline internal coating thermal stress simulator, which belongs to the technical field of natural gas pipelines and comprises an air pipeline, an air heating system, a natural gas pipeline and an induced draft fan. The invention further discloses a method utilizing the pipeline internal coating thermal stress simulator to test adhesion force of the internal coating of the natural gas pipeline. The pipeline internal coating thermal stress simulator can simulate hot air circulation process on the actual running condition of the natural gas pipeline. The method can provide evidence for analyzing the service life of the internal coating of the pipeline.
Description
Technical field
The present invention relates to the natural gas line technical field, particularly a kind of natural gas line internal coating thermal stress simulation device.
Background technology
Natural gas line drag reduction internal coating not only can be kept apart Korrosionsmedium and tube wall metal physical construction, and the protection metal is not corroded, and the more important thing is and can reduce the tube wall roughness, thereby reduce the frictional resistance of natural gas flow, increases throughput rate.In design operational throughput one regularly; The pipeline drag reduction internal coating has the discharge pressure of reduction, expansion boosting station spacing, reduces power consumption, saving steel and executive cost, reduction maintenance cost; Guarantee product purity, make inside pipe wall can not cause the plurality of advantages such as accumulation of sediment dirt or paraffin.
But, because the pipeline drag reduction internal coating receives the influence of factors such as surface treatment and coating process in the application production run, tend to cause defectives such as particle, pin hole, thereby cause the inner-walls of duct corrosion.In addition; Because there is different coefficient of thermal expansions in pipeline with internal coating; Mechanical stress when internal coating self exists coating to solidify, in the military service process, the drag reduction internal coating can receive the influence that the natural gas compressor delivery temperature and the soil moisture change inevitably; Whether pipeline and internal coating long-term creep produce certain influence to internal coating cohesion, or reduce internally coated adhesion.Internally coated adhesion is the key factor that the decision internal coating lost efficacy, and internally coated inefficacy is caused by the adhesion reduction at internal coating and tube metal interface often, and whether the quality of adhesion has been stripped from direct relation with the pigging process floating coat again.
Therefore; Need a kind of thermal stress simulation device that can simulate the natural gas line actual operating mode; Thereby to the internally coated influence degree of pipeline drag reduction rule is provided for measuring the variation of natural gas line service temperature; And then set up the pipeline coating database, and foundation is provided for analysis conduit internally coated serviceable life.
Summary of the invention
In order to address the above problem; The present invention proposes a kind of hot air circulation process that can simulate the natural gas line actual operating mode; Thereby to the internally coated influence degree of pipeline drag reduction rule is provided for measuring the variation of natural gas line service temperature; And then set up the pipeline coating database, and the natural gas line internal coating thermal stress simulation device of foundation is provided internally coated serviceable life for analysis conduit.Simultaneously, the present invention also provides the method that this device is tested natural gas line internal coating adhesion of using.
Natural gas line internal coating thermal stress simulation device provided by the invention comprises air duct, air heating system, natural gas line and induced draft fan; Said air duct is divided into I segment pipe, II segment pipe and III segment pipe; Said natural gas line closed at both ends; Said I segment pipe outlet is connected in an end of said air heating system; The import of said II segment pipe is connected in the other end of said air heating system, and said II segment pipe outlet is connected in said natural gas line inlet, and said natural gas line outlet is connected in said III segment pipe inlet; Said III segment pipe outlet is connected in said induced draft fan, and said induced draft fan can make air flow along the direction of I segment pipe → air heating system → II segment pipe → natural gas line → III segment pipe.
As preferably, said I segment pipe is provided with air flow rate adjustment valve.
As preferably; Said air heating system comprises fuel tank, oil inlet pipe, scavenge pipe, diesel fuel burner and hotair chamber; Utilize said oil inlet pipe to be connected between said fuel tank and the said diesel fuel burner with said scavenge pipe; Said diesel combustion chamber can be at the indoor formation flame of said air heat, and said I segment pipe outlet is connected in an end of said hotair chamber, and the import of said II segment pipe is connected in the other end of said hotair chamber.
As preferably, be connected with temperature control equipment and/or thermometer on the said hotair chamber.
As preferably, the temperature of said hotair chamber≤75 ℃.
As preferably, said natural gas line is built-in with flow controller, and the diameter of said flow controller is less than the diameter of said natural gas line.
As preferably, said flow controller has circular conical surface with direction that air is met mutually.
The method that the said natural gas line internal coating of application provided by the invention thermal stress simulation device is tested natural gas line internal coating adhesion may further comprise the steps:
Use said device said natural gas line is carried out the hot air circulation test;
On the said natural gas line internal coating of finishing the hot air circulation test, draw lattice, make on the said natural gas line internal coating coating block to occur;
Whether check said coating block can be stripped from, if said coating block can't be stripped from, the result who then said natural gas line internal coating is carried out the adhesion test is for qualified.
As preferably; The said natural gas line of said coating block distance edge is at least 13mm, and said coating block is latticed layout, and said coating block has 225; The length of said coating block and the wide 1.6mm that is respectively, said coating block is deep to said natural gas line metallic interior surface.
As preferably, when checking said coating block whether can be stripped from, plastic adhesive tape is covered its surface, firmly compressing said adhesive tape with the thumb first makes its surface of contact color even, throws off said adhesive tape rapidly.
The beneficial effect of natural gas line internal coating thermal stress simulation device provided by the invention is:
Natural gas line internal coating thermal stress simulation device provided by the invention can be simulated the hot air circulation process of natural gas line actual operating mode; Thereby to the internally coated influence degree of pipeline drag reduction rule is provided for measuring the variation of natural gas line service temperature; And then set up the pipeline coating database, and foundation is provided for analysis conduit internally coated serviceable life.
Description of drawings
The structural representation of the natural gas line internal coating thermal stress simulation device that Fig. 1 provides for the embodiment of the invention.
Embodiment
In order to understand the present invention in depth, the present invention is elaborated below in conjunction with accompanying drawing and specific embodiment.
Referring to accompanying drawing 1; Natural gas line internal coating thermal stress simulation device provided by the invention comprises air duct, air heating system, natural gas line 10 and induced draft fan 13; Air duct is divided into I segment pipe 7, II segment pipe 9 and III segment pipe 12; Natural gas line 10 closed at both ends, 7 outlets of I segment pipe are connected in an end of air heating system, and 9 imports of II segment pipe are connected in the other end of air heating system; 9 outlets of II segment pipe are connected in natural gas line 10 inlets; Natural gas line 10 outlets are connected in III segment pipe 12 inlets, and 12 outlets of III segment pipe are connected in induced draft fan 13, and induced draft fan 13 can make air flow along the direction of I segment pipe 7 → air heating system → II segment pipe 9 → natural gas line 10 → the III segment pipes 12.
Wherein, the I segment pipe is provided with air flow rate adjustment valve 8, so that the control air flow.
Wherein, as a kind of concrete implementation of air heating system, air heating system comprises fuel tank 1; Oil inlet pipe 2, scavenge pipe 3; Diesel fuel burner 4 and hotair chamber 5 utilize oil inlet pipe 2 to be connected with scavenge pipe 3 between fuel tank 1 and the diesel fuel burner 4, diesel fuel burner 4 can form flame 6 in hotair chamber 5; 7 outlets of I segment pipe are connected in an end of hotair chamber 5, and 9 imports of II segment pipe are connected in the other end of hotair chamber 5.
Wherein, be connected with temperature control equipment 15 and thermometer 14 on the hotair chamber, and the temperature of control air heating chamber 5≤75 ℃.
Wherein, natural gas line 10 is built-in with flow controller 11, and the diameter of flow controller 11 is less than the diameter of natural gas line 10, thereby makes air flowing in natural gas line 10 can simulate rock gas well at ducted flow effect.
Wherein, flow controller 11 has circular conical surface with direction that air is met mutually, thereby makes air flowing in natural gas line 10 can simulate rock gas well at ducted flow effect.
When using natural gas line internal coating thermal stress simulation device provided by the invention, air flow flows along the direction of arrow shown in the accompanying drawing 1.
The method that this natural gas line internal coating thermal stress simulation device of application provided by the invention is tested natural gas line internal coating adhesion may further comprise the steps:
Step 1: application apparatus carries out the hot air circulation test to natural gas line.
Step 2: on the natural gas line internal coating of finishing the hot air circulation test, draw lattice, make on the natural gas line internal coating coating block to occur;
Wherein, coating block is at least 13mm apart from the natural gas line edge, and coating block is latticed layout, and coating block has 225, the length of coating block and the wide 1.6mm that is respectively, and coating block is deep to the natural gas line metallic interior surface.
Step 3: whether the check coating block can be stripped from, if coating block can't be stripped from, the result who then the natural gas line internal coating is carried out the adhesion test is for qualified.
Wherein, when whether the check coating block can be stripped from, plastic adhesive tape is covered its surface, firmly compressing adhesive tape with the thumb first makes its surface of contact color even, throws off adhesive tape rapidly.
Natural gas line internal coating thermal stress simulation device provided by the invention can be simulated the hot air circulation process of natural gas line actual operating mode; Thereby to the internally coated influence degree of pipeline drag reduction rule is provided for measuring the variation of natural gas line service temperature; And then set up the pipeline coating database, and foundation is provided for analysis conduit internally coated serviceable life.
Above-described embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely embodiment of the present invention; Be not limited to the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. natural gas line internal coating thermal stress simulation device; It is characterized in that; Comprise air duct, air heating system, natural gas line and induced draft fan, said air duct is divided into I segment pipe, II segment pipe and III segment pipe, said natural gas line closed at both ends; Said I segment pipe outlet is connected in an end of said air heating system; The import of said II segment pipe is connected in the other end of said air heating system, and said II segment pipe outlet is connected in said natural gas line inlet, and said natural gas line outlet is connected in said III segment pipe inlet; Said III segment pipe outlet is connected in said induced draft fan, and said induced draft fan can make air flow along the direction of I segment pipe → air heating system → II segment pipe → natural gas line → III segment pipe.
2. device according to claim 1 is characterized in that said I segment pipe is provided with air flow rate adjustment valve.
3. device according to claim 1 is characterized in that said air heating system comprises fuel tank; Oil inlet pipe, scavenge pipe; Diesel fuel burner and hotair chamber utilize said oil inlet pipe to be connected with said scavenge pipe between said fuel tank and the said diesel fuel burner, said diesel combustion chamber can be at the indoor formation flame of said air heat; Said I segment pipe outlet is connected in an end of said hotair chamber, and the import of said II segment pipe is connected in the other end of said hotair chamber.
4. device according to claim 3 is characterized in that, is connected with temperature control equipment and/or thermometer on the said hotair chamber.
5. according to arbitrary described device in claim 3 or 4, it is characterized in that the temperature of said hotair chamber≤75 ℃.
6. device according to claim 1 is characterized in that said natural gas line is built-in with flow controller, and the diameter of said flow controller is less than the diameter of said natural gas line.
7. device according to claim 6 is characterized in that, said flow controller has circular conical surface with direction that air is met mutually.
8. an application rights requires the method that arbitrary described device is tested natural gas line internal coating adhesion in 1～7, it is characterized in that, may further comprise the steps:
Arbitrary described device carries out the hot air circulation test to said natural gas line in the application rights requirement 1～7;
On the said natural gas line internal coating of finishing the hot air circulation test, draw lattice, make on the said natural gas line internal coating coating block to occur;
Whether check said coating block can be stripped from, if said coating block can't be stripped from, the result who then said natural gas line internal coating is carried out the adhesion test is for qualified.
9. method according to claim 8; It is characterized in that; The said natural gas line of said coating block distance edge is at least 13mm, and said coating block is latticed layout, and said coating block has 225; The length of said coating block and the wide 1.6mm that is respectively, said coating block is deep to said natural gas line metallic interior surface.
10. method according to claim 9 is characterized in that, when checking said coating block whether can be stripped from, plastic adhesive tape is covered its surface, and firmly compressing said adhesive tape with the thumb first makes its surface of contact color even, throws off said adhesive tape rapidly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110456820.8A CN102520000B (en) | 2011-12-31 | 2011-12-31 | Pipeline internal coating thermal stress simulator and internal coating adhesion force testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110456820.8A CN102520000B (en) | 2011-12-31 | 2011-12-31 | Pipeline internal coating thermal stress simulator and internal coating adhesion force testing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102520000A true CN102520000A (en) | 2012-06-27 |
| CN102520000B CN102520000B (en) | 2014-02-05 |
Family
ID=46290990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110456820.8A Active CN102520000B (en) | 2011-12-31 | 2011-12-31 | Pipeline internal coating thermal stress simulator and internal coating adhesion force testing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102520000B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335943A (en) * | 2013-05-31 | 2013-10-02 | 东莞市正新包装制品有限公司 | Detection method for adhesion of gravure ink for plastic film |
| CN104792694A (en) * | 2015-03-30 | 2015-07-22 | 四川长虹电器股份有限公司 | Gold-stamping adhesion force detection method |
| CN105158155A (en) * | 2015-08-14 | 2015-12-16 | 芜湖蓝博塑胶有限公司 | Adhesion detection device for air-conditioning plastic parts |
| CN105910984A (en) * | 2016-05-03 | 2016-08-31 | 苏州昆岭薄膜工业有限公司 | Lamination film and base paper adhesive fastness evaluative method |
| CN109406390A (en) * | 2018-11-28 | 2019-03-01 | 航天科工防御技术研究试验中心 | A kind of detection method and its equipment of coating interface bond strength |
| CN109765119A (en) * | 2019-01-14 | 2019-05-17 | 北京工业大学 | It is a kind of for measuring the device in situ of thermal barrier coating system surface thermal stress |
| CN112858161A (en) * | 2021-01-12 | 2021-05-28 | 西南石油大学 | Device and method for measuring adhesion force of gas hydrate and pipeline wall surface |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1444028A (en) * | 2002-03-07 | 2003-09-24 | 中国石油天然气股份有限公司 | Internal coating pressure-tight test device |
| CN101339123A (en) * | 2008-06-02 | 2009-01-07 | 夏玉国 | Method for determining wooden furniture lacquerfilm coatings adhesive force |
| CN101603917A (en) * | 2009-07-14 | 2009-12-16 | 福建浔兴拉链科技股份有限公司 | Adhesive force of pull head coating detection method and equipment |
| CN101818836A (en) * | 2010-02-09 | 2010-09-01 | 北京航空航天大学 | Roll forming method for shape of inner wall coating of natural gas pipeline and roll forming device thereof |
-
2011
- 2011-12-31 CN CN201110456820.8A patent/CN102520000B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1444028A (en) * | 2002-03-07 | 2003-09-24 | 中国石油天然气股份有限公司 | Internal coating pressure-tight test device |
| CN101339123A (en) * | 2008-06-02 | 2009-01-07 | 夏玉国 | Method for determining wooden furniture lacquerfilm coatings adhesive force |
| CN101603917A (en) * | 2009-07-14 | 2009-12-16 | 福建浔兴拉链科技股份有限公司 | Adhesive force of pull head coating detection method and equipment |
| CN101818836A (en) * | 2010-02-09 | 2010-09-01 | 北京航空航天大学 | Roll forming method for shape of inner wall coating of natural gas pipeline and roll forming device thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335943A (en) * | 2013-05-31 | 2013-10-02 | 东莞市正新包装制品有限公司 | Detection method for adhesion of gravure ink for plastic film |
| CN104792694A (en) * | 2015-03-30 | 2015-07-22 | 四川长虹电器股份有限公司 | Gold-stamping adhesion force detection method |
| CN105158155A (en) * | 2015-08-14 | 2015-12-16 | 芜湖蓝博塑胶有限公司 | Adhesion detection device for air-conditioning plastic parts |
| CN105910984A (en) * | 2016-05-03 | 2016-08-31 | 苏州昆岭薄膜工业有限公司 | Lamination film and base paper adhesive fastness evaluative method |
| CN109406390A (en) * | 2018-11-28 | 2019-03-01 | 航天科工防御技术研究试验中心 | A kind of detection method and its equipment of coating interface bond strength |
| CN109765119A (en) * | 2019-01-14 | 2019-05-17 | 北京工业大学 | It is a kind of for measuring the device in situ of thermal barrier coating system surface thermal stress |
| CN109765119B (en) * | 2019-01-14 | 2021-11-26 | 北京工业大学 | In-situ device for measuring thermal stress on surface of thermal barrier coating system |
| CN112858161A (en) * | 2021-01-12 | 2021-05-28 | 西南石油大学 | Device and method for measuring adhesion force of gas hydrate and pipeline wall surface |
| CN112858161B (en) * | 2021-01-12 | 2022-03-11 | 西南石油大学 | Device and method for measuring adhesion force of gas hydrate and pipeline wall surface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102520000B (en) | 2014-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102520000B (en) | Pipeline internal coating thermal stress simulator and internal coating adhesion force testing method | |
| CN107420743B (en) | Intelligent urban gas PE pipe network measurement and control system and measurement and control method | |
| CN103032174B (en) | Be used for the system and method for the air stream that is adjusted to gas turbine | |
| Chaker et al. | Inlet fogging of gas turbine engines—Part I: Fog droplet thermodynamics, heat transfer, and practical considerations | |
| CN104634578A (en) | Total environment high-altitude test system and total environment high-altitude test method for aviation turbocharged internal combustion engine | |
| CN105738120A (en) | Heavy gas turbine blade full-temperature full-voltage cooling effect test device | |
| Soleimani et al. | Performance enhancement of water bath heater at natural gas city gate station using twisted tubes | |
| CN201387355Y (en) | Detection device for automobile air-flow meter | |
| CN103091237B (en) | Spray gun device for simulating high-temperature erosive corrosive service environment of thermal barrier coating | |
| CN105372397A (en) | Simulating experiment device of goaf spontaneous ignition | |
| Cui et al. | Experimental study on the location of gas drainage pipeline leak using cellular automata | |
| CN112557441B (en) | Experimental platform and method for influence of gas pipeline fire injection on safety of adjacent liquid hydrocarbon pipes | |
| CN106769814B (en) | Low-temperature corrosion detection system and detection method thereof | |
| Chen et al. | Study of anticorrosion system and anticorrosion mechanism for the main cable of suspension bridge | |
| CN105806873B (en) | The cold effect experimental rigs of expansion ratios such as combustion engine turbine blade cooling | |
| CN109357956A (en) | A kind of high-temperature fuel gas corrosion fatigue testing system | |
| CN204758458U (en) | Gathering line corrosion inhibitor rete evaluation test device | |
| CN114662366A (en) | Method for analyzing thermal influence of gas pipeline fire injection on adjacent oil pipelines | |
| CN106896091A (en) | The test-bed of sodium fluorescein method evaluation core level filter core performance | |
| Pečinka et al. | Preliminary design of a low-cost mobile test cell for small gas turbine engines | |
| CN208535348U (en) | A kind of new indoor hot water pipe and its mounting structure | |
| CN103949583B (en) | Hot air apparatus control system | |
| Barker et al. | Coal Ash Deposition on Nozzle Guide Vanes: Part II—Computational Modeling | |
| Zeng et al. | A variable air volume control strategy for a centralized exhaust system with multiple on-off switched terminals and flow-guide devices | |
| Elshiekh et al. | Optimal design and operation of Egyptian gas-transmission pipelines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |