Seat post type underwater working device

Abstract

The invention discloses a seat post type underwater working device, which comprises a seat pipe sliding device, a voltage withstanding silo, a propeller and a brake device; the seat pipe sliding device is seated at the outer wall of an underwater pipeline, and the voltage withstanding silo is fixed at the top part of the seat pipe sliding device; the propeller is fixed on the voltage withstandingsilo, and the brake device comprises a brake pawl and a driving device for opening and closing the brake pawl; the brake pawl is hinged at the end part of the seat pipe sliding device. The voltage withstanding silo is used as a floating force provider of the underwater work of the whole device; the seat pipe sliding device and the loaded working mechanism are used as the balance weight, thus thecenter of buoyancy of the whole device is upwards and the gravity thereof is downwards. After the seat post type underwater working device is overturned under the disturbance of the external force, the device can automatically return the vertical state under the effect of the gravity and the center of buoyancy, the working device is not fallen down during the sliding process; when the seat pipe sliding device finds that one place of the pipeline has defect during its sliding along a seabed pipeline, the seat pipe sliding device controls the propeller to stop working and controls the brake pawlto hold the outer wall of the pipeline tightly, thus the whole device is parked at the vicinity of the detect position, and the defect position is repaired.

Description

technical field [0001] The invention relates to a submarine pipeline maintenance device, in particular to a sit-pipe type underwater operation device. Background technique [0002] With the continuous expansion and development of near-shallow oil development scale, the number of submarine pipelines continues to increase. After the submarine pipeline is put into operation, it has been subjected to geological changes, medium corrosion, ocean current impact, vibration fatigue and stress changes for a long time, and is prone to defects such as corrosion and cracks. If it is not discovered and repaired in time, it will inevitably lead to partial or section failure of the pipeline , Oil and gas leakage occurs, causing huge economic losses and serious marine environmental pollution. Contents of the invention [0003] The purpose of the present invention is to provide an operating device that can stably slide and patrol along the outer wall of the submarine pipeline and can reali...

AI Technical Summary

Problems solved by technology

After the submarine pipeline is put into operation, it has been subjected to geological changes, medium corrosion, ocean current impact, vibration fatigue and stress changes for a long time, and is prone to defects such as corrosion and cracks. If it is not discovered and repaired in time, it will inevitably lead to partial or section failure of the pipeline , oil and gas leakage occurs, causing huge economic losses and serious marine environmental pollution

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