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Hydraulic control bypass valve type speed governing pipe cleaning device

A technology of bypass valve and pig, which is applied in the directions of cleaning hollow objects, cleaning methods and utensils, chemical instruments and methods, etc., can solve the problems of poor pipeline passability of speed-regulating pigs, and reduce the risk of jamming. , Increase the overall size, the effect of not easy to get stuck

Inactive Publication Date: 2017-02-15
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Purpose of the present invention: In order to overcome the shortcomings of the existing pig bypass valve discharge control method, and to overcome the shortcomings of the existing speed-regulating pig pipeline, a hydraulic control bypass valve type is provided. Adjustable speed pig

Method used

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  • Hydraulic control bypass valve type speed governing pipe cleaning device
  • Hydraulic control bypass valve type speed governing pipe cleaning device

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Embodiment Construction

[0025] The present invention is not limited by the following implementation examples, and specific implementation manners can be determined according to the technical solutions of the present invention and actual conditions. Combine below figure 1 , 2 The present invention is described below. The positional relationship of up, down, left and right is based on the attached figure 1 determined by the layout direction.

[0026] The front end cover 15 is installed on the front end of the cylinder body 18 and connected with bolts, and the rear end cover 5 is installed on the rear end of the cylinder body 18 and connected with bolts. A leather cup 6 is arranged at the rear end of the cylindrical body 18 and is compressed and fixed with the rear end cover 5 . A leather cup 6 is installed outside the front end cover 15 and fixed with a front baffle 14, and the front baffle 14 and cylinder 18 are bolted. Connecting ring 16 is installed at the outer end of front end cover 15, and d...

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Abstract

The invention relates to a hydraulic control bypass valve type speed governing pipe cleaning device which is used for pipe cleaning operation. The shortcoming that the passing ability of an existing speed governing pipe cleaning device pipe in a pipe is not high is overcome. According to the technical scheme, a front end cover and a back end cover are arranged on the two sides of a barrel, a cup is arranged on the barrel, a center cylinder is arranged in the barrel, a valve cylinder is arranged in the center cylinder, a speed governing oil cylinder is installed at the end of the center cylinder, and a piston rod of the speed governing oil cylinder is connected with the valve element; a roller is installed on a hydraulic pump input shaft, a supporting spring is arranged between two hydraulic pumps, and the hydraulic pumps are arranged on the outer side of the back end cover; and an oil tank is arranged in the barrel, hydraulic pump oil sucking ports are connected to the oil tank, hydraulic pump oil outlets are connected to a throttle valve, a throttle valve oil return port is connected to the oil tank, and the front end of the throttle valve is connected with the speed governing oil cylinder. By means of the cleaning device, a speed controller is free of electrical apparatus elements, and safety and reliability are achieved; the bypass valve structure is relatively large, and blockage is not likely to occur; and the passing ability of the device in the pipe is high.

Description

technical field [0001] The invention relates to a liquid-controlled bypass valve-type speed-regulating pipe pig, which is used for pipeline pigging operations. Background technique [0002] In the process of pigging and testing oil and gas pipelines, general regulations require that the running speed of the pigging equipment is 3.5-5m / s; in order to obtain better quality of testing data, the running speed of the equipment in the pipeline is required to be lower than 5 m / s. s; electromagnetic ultrasonic testing equipment requires its operating speed to be lower than 2 m / s. The speed of the pigs changes greatly when passing through the uphill and downhill sections, curved sections, liquid accumulation, sand accumulation and fouling sections of the pipeline, and the direct use of conventional pigs cannot meet the speed control requirements. [0003] The speed control modes of existing oil and gas pipeline pigs are active control mode and passive control mode. [0004] The act...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B9/053
CPCB08B9/053
Inventor 梁政何虹钢张梁
Owner SOUTHWEST PETROLEUM UNIV
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