A maintenance equipment for pipelines laid underground or crossing rivers

Abstract

The invention discloses maintenance equipment for pipelines under the conditions of buried laying or crossing rivers, comprising a detection head, wherein one side of the detection head is provided with a brake assembly; one side of the brake assembly is provided with a push assembly; the maintenance equipment provided by the invention has a scientific and reasonable structure, is safe and convenient to use, is provided with a brake assembly, and is convenient to drive a cam brake block to open a certain angle, contact with the inner wall of a pipeline and be blocked through a screw rod, a linkage, a brake motor, a brake block connecting rod and the cam brake block; in order to realize the braking action, when unlocking is required after the repair work is completed, the cam brake block isdriven to return to a normal state through the reverse motion of the brake motor to complete the unlocking action; the push assembly is arranged, and a sliding block is convenient to move back and forth through the action of a worm wheel shaft, a worm wheel, a crank, the connecting rod and the sliding block to realize the pushing of a repair ring; through the action of a repair ring clamping piece, the repair ring is convenient to fix and the repair work is prevented from being affected by the shaking of the repair ring.

Description

technical field [0001] The invention relates to the technical field of pipeline detection and maintenance, in particular to maintenance equipment for pipelines laid underground or crossing rivers. Background technique [0002] Due to the advantages of safety, efficiency and economy, pipeline transportation has become the main means of transportation for oil and gas transportation in the world. Due to factors such as the increase in the service life of pipelines, external force interference, corrosion or material defects caused by immature early materials, pipelines The problem of failure is becoming more and more serious. Since most of China's oil pipelines cross rivers and are laid underground, once corrosion, perforation, leakage and other problems occur in the above working conditions, the pipeline must be stopped and excavated to repair the pipeline, resulting in huge economic losses. Pipeline inspection and repair, a lot of work has been carried out at home and abroad. ...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a maintenance equipment for pipelines laid underground or crossing rivers, which can effectively solve the common internal pipeline repair methods proposed in the above-mentioned background technology, including: repairing underground cast iron pipeline joints without trenches, in-situ solidification lining method, polymer Ester pipe flipping lining method, etc., the current internal repair methods in China include U-shaped HDPP pipe lining repair method, in-situ curing repair method, coating lining repair method, expansion pipe method pipeline repair, etc. These methods generally show as follows: Off-line repair; the medium in the pipeline needs to be removed, which has high requirements for the working environment; some repair methods will bring about a large change in the inner diameter of the pipeline; some repair solutions require high-cost professional equipment, which increases the cost

Images