Offshore pipeline construction traction device
A traction device and pipeline construction technology, applied in the direction of pipeline laying and maintenance, pipe/pipe joint/pipe fittings, mechanical equipment, etc., can solve the problems of large traction resistance, easy to fall off, poor guiding performance, etc., and achieve simple structure and tight connection. , the effect of easy installation
Inactive Publication Date: 2015-11-04
WUHAN DESIGN & RES INST OF CHINA COALTECH & ENG GROUP
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Problems solved by technology
However, the traditional traction device has large traction resistance, poor guiding performance, and is easy to fall off
Method used
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[0008] exist figure 1 Among them, the upper semicircular steel plate (2) and the lower semicircular steel plate (3) are paired to buckle the submarine pipeline (1), and are adjusted and fastened by high-strength bolts (4). The end of the submarine pipeline (1) is connected with a blind flange (7), and the blind flange (7) is welded together with the water injection port (9) and the exhaust port (8). The lower semicircular steel plate (3) is welded together with the bottom truss (6) and the portal truss (10) through the reinforcing plate. A suspension hook (11) is installed in front of the portal truss (10), which can be connected with a traction cable.
[0009] Before pipeline construction, the end of the submarine pipeline (1) is blocked to ensure airtightness so that it can float on the sea surface. After the whole traction device is welded firmly, it is connected with the traction steel cable by the suspension hook (11) in front of the portal truss (10). After being towe...
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An offshore pipeline construction traction device is composed of a submarine pipeline, upper semicircular steel plates, lower semicircular steel plates, high-strength bolts, reinforcing plates, a bottom truss, a blind flange, an exhaust port, a water filling port, a portal truss and a lifting hook. The semicircular steel plates are adopted by the traction device. Each upper steel plate and the corresponding lower steel plate are used in a pair. Round holes are drilled in each semicircular steel plate. Besides, nuts are welded to the round holes so that the high-strength bolts can be screwed into the round holes, and therefore the semicircular steel plates and the pipeline can be tightly combined. The end of the pipeline is connected with the blind flange. The export port used for air exhaust and the water filling port used for water filling are welded to the blind flange. The semicircular steel plates are welded to the bottom truss through the reinforcing plates, and the bottom truss, the portal truss and the lifting hook are welded together. The whole traction device and the pipeline can be more tightly connected and protected against disengagement because the semicircular steel plates are used in cooperation with the high-strength bolts. By the adoption of the reinforcing plates, the semicircular steel plates and the trusses can be tightly connected, and traction force can be effectively transmitted. The paired semicircular steel plates and the trusses are simple in structure and convenient to install.
Description
technical field [0001] The invention relates to a traction device in the construction process of an offshore pipeline. The traction device can be used in the construction process of the offshore pipeline to carry out offshore or seabed traction and dragging of the pipeline, and belongs to the technical field of offshore pipeline construction. Background technique [0002] With the accelerated development of offshore oil and gas fields and the development of technology, submarine pipelines have been widely used in the development of offshore oil fields, and laying pipelines on the seabed is a very difficult project. Due to the geology and topography of the seabed, it is difficult or incomplete to collect, and the influence of ocean currents is very complicated, which has caused great difficulties in the laying of pipelines. Traction laying of submarine pipelines is the most commonly used method of laying pipes. The traction device is one of the necessary equipment for submari...
Claims
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Login to View More IPC IPC(8): F16L1/12
CPCF16L1/126
Inventor 何鲁鄂梁霏飞
Owner WUHAN DESIGN & RES INST OF CHINA COALTECH & ENG GROUP