A pipe pig hydraulic control brake device

A technology of brake device and pipe cleaner, which is applied in the direction of cleaning hollow objects, cleaning methods and appliances, chemical instruments and methods, etc., and can solve the problems of expensive rental of pipe cleaners

Inactive Publication Date: 2017-06-30
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic bypass valve active control pigs are still immature, and overseas such pigs are expensive to rent. At present, domestic oil and gas pipeline pigging is still dominated by passive control methods

Method used

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  • A pipe pig hydraulic control brake device
  • A pipe pig hydraulic control brake device

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Embodiment Construction

[0021] 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 , figure 2 The present invention is described below. The positional relationship of up, down, left, right, etc. is based on the attached figure 1 determined by the layout direction.

[0022] Such as figure 1 As shown, the base 18 is in the shape of a truncated cone as a whole, and the outer end surface of the base 18 is provided with a connecting ring 4 and connected with bolts. The connecting ring 4 is used to connect other pigs or pipeline testing equipment. The base 18 is radially provided with a groove with a rectangular cross-section, and the bracket 15 is installed in the groove in the middle of the base 18 , and the bracket 15 can slide along the radial direction of the base 18 in the groove in the middle of the base 18 ....

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Abstract

The invention relates to a hydraulic control braking device for a pipe cleaner to overcome the defects of the bypass valve control mode. According to the technical scheme, a speed acquisition wheel is pressed onto the inner wall of a pipeline under hydraulic pressure and drives a hydraulic pump, high-pressure oil flows back to a fuel tank through a throttling valve, throttling pressure is transmitted to a centre oil cylinder, the oil cylinder pushes a drawing head, the drawing head enables a brake block to generate pressing force on the pipeline through a connecting rod mechanism, and the pressing force is in direct proportion to the operating speed of the pipe cleaner. The hydraulic control braking device for the pipe cleaner can be simply arranged on the back side of the pipe cleaner, can be provided with a detection device, and can be applied to various pipe cleaning tasks.

Description

technical field [0001] The invention relates to a hydraulically controlled braking device for a pipe pig. 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 testing equipment in the pipeline is required to be lower than 5m / s ; Electromagnetic ultrasonic testing equipment requires its operating speed to be lower than 2m / 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 active control adopts the bypass valve control method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B9/049
CPCB08B9/049
Inventor 邓兰梁政邓严刘稳何虹钢叶哲伟
Owner SOUTHWEST PETROLEUM UNIV
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