Gunwale welding operating shed for laying submarine pipelines

Abstract

The invention discloses a gunwale welding operating shed for laying submarine pipelines, which belongs to operating equipment special for welding pipes in submarine pipeline construction. A shed body comprises a shed framework, shed cloth and a rotating shaft, which form a closed operating room. The shed body is lapped on a gunwale deck of a ship body. The shed cloth is connected with the shed framework in a soft bonding manner. A bracket comprises a horizontal part and a vertical part. A floor board is laid on the horizontal bracket. A clamp has a double-ring shape, and consists of an upper clamping ring, a lower clamping ring, a hinged shaft, a cushion block and a chuck assembly. The clamp is integrally mounted on the vertical bracket, and the clamp clamps the end part of a pipe. The bracket, the clamp and the end part of the pipe are covered inside the operating shed. The operating shed disclosed by the invention mainly has the advantages that: the operation inside the shed is protected against wind, sun and rain, and the temperature and the humidity are adjustable; the quality is ensured, the working efficiency is improved, the construction cost is lowered, the potential safety hazard is eliminated, and the labor intensity is reduced; unprecedented innovative equipment is provided for the shallow beach submarine pipeline construction; and the gunwale welding operating shed has remarkable economic benefit and expectable promotion prospect.

Description

technical field [0001] The invention relates to the laying construction of submarine pipelines, and is a special device for welding pipelines on the sides of hulls. Specifically, it is a submarine pipeline laying side welding operation shed. Background technique [0002] Petroleum development in my country's shallow sea area is in the ascendant. Shengli Oilfield has formed a unique shallow shallow submarine pipeline construction advantage in the past two decades. Thousands of kilometers of oil pipelines have been successfully laid under the shallow seabed of 2-20 meters in my country. Among them, in the sea area with a water depth of 10-20 meters or more, a single steel pipe is laid on the seabed while welding on the pipe-laying ship; A single steel pipe is welded and prefabricated into 800-1000 meter long pipe sections by the seaside, and these pipe sections are floated to the seabed by tugboats, pontoons, etc. again. The pipe sections already in place on the seabed canno...

AI Technical Summary

Problems solved by technology

The main disadvantages of the simple operation platform are: firstly, there is no cover in the open air. Due to the poor climate conditions at sea, especially the changeable wind speed, temperature and humidity, the open-air operation platform cannot meet the working conditions required by the pipeline installation and welding process

The second is that the pipe end fixing fixture on the console adopts a bolt connection structure, and it takes 4 hours to assemble and disassemble it with the main support of the console. The auxiliary time is too long. More than 400,000 yuan in 8 hours of construction equipment, and more than 200,000 yuan in auxiliary time wasted)

The third is that the entire weight of the operation table is borne by the work frame, and the stability is poor

Fourth, the overall paving of the bottom plate of the operating table is very inconvenient, time-consuming and labor-intensive

Fifth, the safety is poor, and operators or equipment and tools are easy to fall into the sea

Many shortcomings and deficiencies of the original simple operation platform have seriously restricted the development of submarine pipeline construction technology

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