CN101217010A - An experimental device for welding recondition on tubes in service - Google Patents
An experimental device for welding recondition on tubes in service Download PDFInfo
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- CN101217010A CN101217010A CNA2008100565410A CN200810056541A CN101217010A CN 101217010 A CN101217010 A CN 101217010A CN A2008100565410 A CNA2008100565410 A CN A2008100565410A CN 200810056541 A CN200810056541 A CN 200810056541A CN 101217010 A CN101217010 A CN 101217010A
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- pipeline
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- water tank
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Abstract
The invention pertains to the field of welding devices, in particular to an experimental device used for in-service welding repair of pipelines, which is characterized in that the device is composed of a water tank (1), a thermometer (2), a circular circuit (3), a high-pressure pump (4), a valve (5), a pipeline (6), a bottom plate (7), a repair plate (8) and a flowmeter (9). The lower end of the water tank (1) is connected with the high-pressure pump (4) via the circular circuit (3) of a galvanized pipe; the thermometer (2) is arranged on the inner wall of the water tank; the high-pressure pump, the valve (5), the experimental pipeline (6) and the flowmeter (9) are connected via the circular circuit; the terminal pipeline of the circular circuit is inserted to the water tank; the bottom plate (7) and the repair plate (8) are materials to be welded for the research of in-service welding, and are arranged on a groove of the pipeline. The invention has the advantages of that: in-service welding simulation experiments can be operated on the pipelines with different wall thicknesses under the conditions of different water velocities and water temperatures; the process is safe, the structure is simple, and the operation is simple; the device can be applied in the simulation assessment and research of comprehensive performance of the in-service welding joints of the pipelines.
Description
Technical field
The invention belongs to the welder field, a kind of experimental provision that is used for pipeline in the labour REPAIR WELDING particularly is provided, be applicable under the pipe interior medium transport condition experimental provision that carries out welding operation.
Background technology
Oil and gas pipes in the process, owing to reasons such as burn into wearing and tearing and accidental injuries, unavoidably can cause local reduction, the damage of pipeline even leakage accident takes place under arms.Owing to can keep the continuity of pipeline operation, repair time is short, speed is fast in the labour Welding Repair Technology for pipeline, and environmental pollution is little, thereby has huge economic benefits and wide application prospect.Yet often have two problems at the pipeline of labour welding: burn and hydrogen induced cracking, therefore the security in the labour welding becomes the main difficult point of judging its applicability and technological feasibility.Under various flows moving medium cooler environment in the research pipeline, and different welding technologys are to the influence rule of pipeline in labour welding combination property, but owing to actual oil and gas pipes is dangerous greatly in labour welding existence, experimentation cost is expensive, need study and estimate at the labour welding surroundings in laboratory simulation, also adopting water in the world mostly be that flow media carries out in the labour Study of Welding.
Summary of the invention
The object of the present invention is to provide a kind of experimental provision that is used for oil and gas pipes in labour REPAIR WELDING evaluation and research, solved actual pipeline in the labour welding problem that estimated risk is big, cost is high, in the laboratory, quickly and easily the quality of weld joint under different medium flox condition and the welding condition has been estimated and systematic study.
A kind of pipeline is at the experimental provision of labour REPAIR WELDING, and the present invention is made up of water tank 1, thermometer 2, closed circuit 3, high-pressure hydraulic pump 4, valve 5, pipeline 6, base plate 7, reparation plate 8, flowmeter 9.The lower end of water tank 1 links to each other with the closed circuit 3 of high-pressure hydraulic pump 4 by galvanized conduit, thermometer 2 is placed on the inwall of water tank, high-pressure hydraulic pump 4, valve 5, experimental channel 6 and flowmeter 9 all are to link to each other by closed circuit, and the terminal pipe of closed circuit inserts in the water tank.Base plate 7 and to repair plate 8 are materials to be welded in labour welding research is placed on the groove that pipeline hollows out.
Be connected the actual pipeline rehabilitation of simulation with the fillet weld of repairing plate by base plate, the welding base plate contacts with the pipe interior flow media.Base plate and pipeline groove seal by tackifier, and both fixing bonding was convenient to load and unload welded blank again.The pressure of adjusting high-pressure hydraulic pump changes the flow velocity of water, thus realize simulation different medium flow velocity, heat exchange rate in the labour welding condition.Adopt closed circuit to help the supercharging of high temperature water pump, and using water wisely.Water tank temperature inside meter can be monitored water temperature, is convenient to carry out the water cooling temperature conditions, simulates multiple welding surroundings.Can carry out the welding operation of pipe line steel of the same race and xenogenesis pipe line steel material by the welding base plate of changing different-thickness and the material of repairing plate, simulate the condition of work of how actual military service pipeline.See Fig. 1.
The invention has the advantages that: can be under the condition of different water flow velocities, coolant-temperature gage, the pipeline of different pipe thicknesses is carried out in the experiment of labour welding analog operation, process safety, simple in structure, easy to operate.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Embodiment
Fig. 1 is using as a servant welding experimental device for the pipeline that provides by above-mentioned technical characterstic.Earlier 6 sections in pipeline is gone out a groove, pipe line steel materials processing is the base plate 7 of different-thickness, with 502 glue base plate is bonded on the groove of pipeline, and good seal.Put and be placed on the base plate repairing plate 8, with to be welded.Open valve 5, regulate high-pressure hydraulic pump 4, measure different water flow velocities by flowmeter 9.Water in the water tank is got back in the water tank by closed circuit 3.Deng the water flow velocity of flow measurement stable after, be welded on the base plate repairing plate, the flow media of postwelding pipe interior carries out forced-convection heat transfer to welding base plate, thereby reduces the temperature of welding joint rapidly.After welding joint is reduced to room temperature, just being welded on one base plate and repairing plate and unload, so that carry out the test of structure observation, Mechanics Performance Testing, decay resistance test and the welding residual stress of welding joint from pipeline.
Claims (2)
1. a pipeline is characterized in that being made up of water tank (1), thermometer (2), closed circuit (3), high-pressure hydraulic pump (4), valve (5), pipeline (6), base plate (7), reparation plate (8), flowmeter (9) at the experimental provision of using as a servant REPAIR WELDING; The lower end of water tank (1) links to each other with the closed circuit (3) of high-pressure hydraulic pump (4) by galvanized conduit, thermometer (2) is placed on the inwall of water tank, high-pressure hydraulic pump, valve (5), experimental channel (6) and flowmeter (9) all are to link to each other by closed circuit, and the terminal pipe of closed circuit inserts in the water tank; Base plate (7) and to repair plate (8) be material to be welded in labour welding research is placed on the groove that pipeline hollows out.
2. a kind of according to claim 1 pipeline is at the experimental provision of labour REPAIR WELDING, it is characterized in that being connected the actual pipeline rehabilitation of simulation with the fillet weld of repairing plate by base plate, the welding base plate contacts with the pipe interior flow media, and base plate and pipeline groove seal by tackifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100565410A CN101217010B (en) | 2008-01-21 | 2008-01-21 | An experimental device for welding recondition on tubes in service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100565410A CN101217010B (en) | 2008-01-21 | 2008-01-21 | An experimental device for welding recondition on tubes in service |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101217010A true CN101217010A (en) | 2008-07-09 |
| CN101217010B CN101217010B (en) | 2010-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100565410A Expired - Fee Related CN101217010B (en) | 2008-01-21 | 2008-01-21 | An experimental device for welding recondition on tubes in service |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101217010B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944403A (en) * | 2012-11-19 | 2013-02-27 | 浙江大学舟山海洋研究中心 | Gas transmission line in-service welding experimental device |
| CN109490126A (en) * | 2019-01-04 | 2019-03-19 | 西华大学 | A kind of open sand erosion experimental system of hydraulic |
| CN111462926A (en) * | 2020-03-19 | 2020-07-28 | 岭澳核电有限公司 | Test bench for on-line welding repair simulation of nuclear power plant pipeline |
| CN112705906A (en) * | 2021-01-23 | 2021-04-27 | 中车洛阳机车有限公司 | Welding repair method for outer cylinder of preheating boiler |
| CN114688382A (en) * | 2022-03-31 | 2022-07-01 | 中国地质大学（武汉） | Experimental device and method for pipeline repair through soft lining material curing |
-
2008
- 2008-01-21 CN CN2008100565410A patent/CN101217010B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944403A (en) * | 2012-11-19 | 2013-02-27 | 浙江大学舟山海洋研究中心 | Gas transmission line in-service welding experimental device |
| CN109490126A (en) * | 2019-01-04 | 2019-03-19 | 西华大学 | A kind of open sand erosion experimental system of hydraulic |
| CN111462926A (en) * | 2020-03-19 | 2020-07-28 | 岭澳核电有限公司 | Test bench for on-line welding repair simulation of nuclear power plant pipeline |
| CN112705906A (en) * | 2021-01-23 | 2021-04-27 | 中车洛阳机车有限公司 | Welding repair method for outer cylinder of preheating boiler |
| CN114688382A (en) * | 2022-03-31 | 2022-07-01 | 中国地质大学（武汉） | Experimental device and method for pipeline repair through soft lining material curing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101217010B (en) | 2010-07-21 |
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