Method and device for pressurized sealing of sand hole leakage
A technology of trachoma and plugging parts, applied in the field of pressure vessels, can solve problems such as long construction time, difficult plugging process, gas leakage, etc., and achieve the effect of short construction time, good effect and reduced impact
Active Publication Date: 2017-09-15
STATE GRID CORP OF CHINA +1
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Problems solved by technology
[0003] At present, when sealing the trachoma leakage of oil-filled and inflatable equipment under pressure, it is mainly to use sealing tape or sealing glue to forcibly seal, but the oil leakage will seriously affect the effect of the plugging material, resulting in a low plugging success rate , but the pressure of gas leakage is high, the gas leaks continuously, the plugging process is difficult, the construction time is long, and the quality is poor
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[0032] For ease of understanding, the present invention will be further described below in conjunction with the accompanying drawings.
[0033] see figure 1 , is a schematic diagram of a device for sealing trachoma leakage under pressure provided in an embodiment of the present invention. The device for sealing trachoma leakage under pressure provided in an embodiment of the present invention includes an outer shell 1, an inner shell 2, a movable Connecting body 3, vacuum valve 4 and blocking piece 6.
[0034] Wherein, the inner housing 2 includes a pipe body (not marked in the figure) and a flange part (not marked in the figure) positioned at one end of the pipe body, and the pipe hole of the pipe body is larger than the end of the flange to be blocked. Trachoma;
[0035] The outer shell 1 is cylindrical and surrounds the inner shell 2, and one end of the outer shell 1 is closed and connected to the outer edge of the flange part through the movable connector 3, and the othe...
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The invention provides a method and device for pressurized sealing of sand hole leakage. The device comprises an outer shell (1), an inner shell (2), a movable connecting body (3), a vacuum valve (4) and a sealing piece (6). The inner shell (2) comprises a pipe body part and a flange part located at one end of the pipe body part. The end, away from the flange part, of a pipe hole of the pipe body part is larger than a to-be-sealed sand hole. The inner shell (2) is surrounded by the cylindrical outer shell (1), one end of the cylindrical outer shell (1) is connected with the periphery of the flange part in a sealing mode through the movable connecting body (3), and the other end of the cylindrical outer shell (1) is flush with the end, away from the flange part, of the pipe body part. The vacuum valve (4) is located on the outer shell (1) or located on the flange part of the inner shell (2). The sealing piece (6) is used for being connected with the end, close to the flange part, of the pipe hole of the pipe body part in a sealing mode. Through use of the device provided by the invention, the influence of media in a pressure container on leak stoppage work can be effectively reduced, the construction time is short, the effect is good, and the success rate is high.
Description
technical field [0001] The invention relates to the technical field of pressure vessels, in particular to a method and device for sealing leaks from sand holes under pressure. Background technique [0002] In the electric power, petroleum, chemical industry, coal and other industries, some liquid and gas storage devices are common. These storage devices will inevitably have trachoma defects. When there is leakage or gas leakage at the trachoma, it is necessary to seal the trachoma leakage in time. Blocking. [0003] At present, when plugging the trachoma leakage of oil-filled and inflatable equipment under pressure, it is mainly to use sealing tape or sealing glue to forcibly seal it. However, the oil leakage will seriously affect the effect of the plugging material, resulting in a low plugging success rate , and the pressure of gas leakage is high, the gas leaks continuously, the plugging process is difficult, the construction time is long, and the quality is poor. [000...
Claims
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IPC IPC(8): F17C13/06
CPCF17C13/06
Inventor 檀英辉于文博檀政赵淑珍陈方东陈军法靳永旗李广渊金海望白鲲曹森王占伟魏征刘阳
Owner STATE GRID CORP OF CHINA