Film-coating pipe cleaner with emergency start-up system

A technology for starting systems and pigs, which is applied in the direction of control/regulation systems, electric fluid pressure control, instruments, etc., to achieve the effect of increasing the anti-corrosion effect and uniform distribution

Active Publication Date: 2017-06-27
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention mainly solves the following problems:

Method used

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  • Film-coating pipe cleaner with emergency start-up system
  • Film-coating pipe cleaner with emergency start-up system
  • Film-coating pipe cleaner with emergency start-up system

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Embodiment Construction

[0059] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0060] Such as figure 1 , 2 As shown, a film-coated pipe pig with an emergency start system includes a pipeline 1, an elastic leather cup 3, a hard leather cup 4 and a cylindrical frame 21. The pig is arranged in the pipeline 1, and the elastic leather cup The bowl 3 and the hard leather bowl 4 are annularly installed on the outside of the cylindrical frame 21, and the pig is characterized in that the pig also includes an emergency start system 7, a speed control device 10, a pressure sensing device 9 and a corrosion inhibitor collection and spraying system.

[0061] The emergency start system 7 includes a control unit 71, a wire 72, a battery pack 73, a coil 74, a magnetizable iron core 75, a pillar 76, a permanent magnet 77, a baffle plate 78, a baffle plate chamber 79, and a control unit 71. The battery pack 73 and the coil 74 are sequenti...

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PUM

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Abstract

The invention discloses a film-coating pipe cleaner with an emergency start-up system, and relates to the technical field of pipeline operation. The emergency start-up system is designed, so that the pipe cleaner can be guaranteed to restore operation under a working condition that a speed control device loses efficacy; three sets of speed control devices are arranged, so that operation speed of the pipe cleaner is controlled by regulating a bypass area; a corrosion inhibitor collecting spraying system is designed, so that the system is used for collecting a corrosion inhibitor settled on the bottom of the pipe cleaner and performing secondary spraying, and therefore, amount of the corrosion inhibitor on the top of a pipeline is increased; a pressure induction device is designed for judging whether the pipe cleaner is blocked or not as a result of a too great bypass area in the pipeline; a spray head is designed, so that the molecular particle size of the corrosion inhibitor sprayed out from the spray head is small, and a film is easily formed on the top of the pipeline. The film-coating pipe cleaner with the emergency start-up system disclosed by the invention can control the speed of the pipe cleaner, can prevent the pipe cleaner from being blocked due to the fact that the speed control device loses efficacy, and can be used for collecting the corrosion inhibitor settled on the bottom of the pipeline, and spraying the corrosion inhibitor for a second time in a comparatively ideal mode.

Description

technical field [0001] The invention belongs to the technical field of pipeline operations, and relates to a coating pipe pig with an emergency start system. Background technique [0002] Pipelines in high-sulfur gas fields are prone to corrosion, mainly manifested as uniform corrosion, local corrosion, and erosion corrosion. In the case of improper corrosion monitoring and control, pipeline perforation, puncture failure, or even bursting may result. Rational use of corrosion inhibitors is an economical and effective method of corrosion control. There are usually two methods for adding corrosion inhibitors: the first method is to use the double ball method for corrosion inhibitor pre-filming, one guiding pig, one pre-filming pig, and two pigs one after the other. The gas moves forward under the pressure of the gas, and the corrosion inhibitor is filled in the middle, and the purpose of anticorrosion is achieved by forming a corrosion inhibitor film on the inner wall of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B13/06B05B7/10G05D16/20
CPCG05D16/2066B05B7/10B05B13/06
Inventor 刘武曲国健杨兴兰宁海峰
Owner SOUTHWEST PETROLEUM UNIV
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