Blade type tube cleaner

A pipe pig and blade-type technology, which is applied in the field of blade-type pipe pigs, can solve the problems of large driving force, high energy consumption, and slow cleaning speed, and achieve the effects of light weight, reduced fluid density, and simple structure

Active Publication Date: 2015-03-25
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Use the scraper installed on the pipe pig to scrape off the dirt on the inner wall of the pipeline, but relying too much on the scraper to completely scrape off the dirt will slow the cleaning speed, require a large driving force, and consume a lot of energy

Method used

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  • Blade type tube cleaner
  • Blade type tube cleaner
  • Blade type tube cleaner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like figure 1 and figure 2 As shown, the present invention provides a vane type pig, comprising a guide tube 8, the front end of the guide tube 8 is provided with a baffle plate 13, and the center of the baffle plate 13 is positioned on the baffle plate 13 along the axial direction of the guide tube 8. The outer surface of the outer surface is fixedly provided with a central shaft, and the central shaft is provided with blades 2 which can rotate around the central shaft;

[0030] A plurality of nozzles 9 are arranged on the baffle plate 13 , the inner hollow cavity of the guide tube 8 is a fluid channel, the nozzles 9 communicate with the fluid channel, and the rear end of the guide tube 8 is open.

[0031] Put the blade-type pipe pig into the ball barrel at the front end of the effusion pipe. Before putting it in, make sure that the 2 ends of the pipe pig with blades are put in first to complete the delivery work. Under the action of back pressure power, the pig is ...

Embodiment 2

[0033] On the basis of Embodiment 1, specifically, the central shaft is composed of a first central shaft 6 fixedly connected to the center of the baffle plate 13 at one end and a second central shaft 14 connected to the other end of the first central shaft 6. The two central shafts 14 are sheathed with bearings 5 ​​, and the outer circumference of the bearings 5 ​​is provided with blades 2 that can rotate along the bearings 5 ​​. It should be pointed out that the bearing 5 is preferably a cylindrical roller bearing, the second central shaft 14 is inserted into the cylindrical roller bearing through a slight interference fit, and the cylindrical roller bearing is in close contact with the first central shaft 6; the blade 2 can be directly sleeved On the bearing 5, it is also possible to weld the blade 2 on the rotor 3, and then set the rotor 3 on the bearing 5, such as image 3 As shown, the outer periphery of the bearing 5 is covered with the rotor 3 , the cylindrical roller ...

Embodiment 3

[0035] On the basis of embodiment 1 or embodiment 2, such as figure 2 As shown, in order to protect the draft tube 8 , the vane pig also includes a tooth-shaped sealing tube 7 sleeved on the outer periphery of the draft tube 8 .

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PUM

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Abstract

The invention provides a blade type tube cleaner which comprises a guide cylinder, wherein a baffle plate is arranged at the front end of the guide cylinder; a center shaft is fixedly arranged on the outer surface of the baffle plate in the axial direction of the guide cylinder, and a blade capable of rotating around the center shaft is arranged on the center shaft; a plurality of nozzles are arranged on the baffle plate, and a hollow cavity in the guide cylinder is a fluid channel; the nozzles are communicated with the fluid channel, and an opening is formed in the rear end of the guide cylinder. The blade type tube cleaner can reduce the density of accumulated fluid in a pipeline and take out the accumulated fluid, so that the propelling resistance of the tube cleaner is reduced. The tube cleaning effect can achieve the optimal state, the normal delivery capacity of the tube is recovered, and the delivery cost is reduced.

Description

technical field [0001] The invention relates to a blade-type pipe pig used for clearing liquid accumulation in a gas pipeline during the gathering and transportation process of a natural gas pipeline. Background technique [0002] During the development and production of natural gas wells, the gathering and transportation of mine pipelines is generally carried by wet natural gas pipelines. Due to changes in fluid parameters and pipeline elevations during the transportation process, liquid accumulation occurs in the pipelines. As the effusion continues to increase, if it cannot be removed in time, the transmission capacity and gathering efficiency of the pipeline will often be reduced, and in severe cases, the pipeline will be blocked, which will eventually lead to the failure of the normal operation of the pipeline. [0003] For the current gas-collecting pipelines with liquid accumulation, pipe pigs are usually used to remove the liquid accumulation in the pipeline. The pip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B9/053
CPCB08B9/053
Inventor 解永刚胡均志周继勇赵轩刚马骞王娜马连伟赖燕徐东叶晔王雅萍马国华季伟张昆
Owner PETROCHINA CO LTD
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