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Dual function sea-bottom digger

A dual-function, excavator technology, applied in the direction of earth mover/shovel, construction, etc., can solve the problems of poor operation control performance, low work efficiency, weak underwater positioning control performance, etc., to achieve perfect groove shape, The effect of large excavation area and smooth spraying effect

Active Publication Date: 2008-05-28
CHINA NAT OFFSHORE OIL CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of device is too simple, its work efficiency is low, its underwater positioning control performance is extremely weak, and its operation control performance is also poor. The comprehensive efficacy and performance cannot meet the needs of current production

Method used

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  • Dual function sea-bottom digger
  • Dual function sea-bottom digger
  • Dual function sea-bottom digger

Examples

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1~ image 3 Shown, the present embodiment comprises a main frame 1 and the skid body 2 that is arranged on the both sides bottom of main frame 1, and the frame in the middle part of main frame 1 is the water main pipe 3 that is made up of hollow pipe (as shown in Fig. 2 The frame part in the shape of a mesh), a buoyancy cylinder and an instrument cylinder 4 are arranged on the water main pipe 3, and the buoyancy cylinder and the instrument cylinder 4 are provided with conventional monitoring devices, control circuits, sonar receivers, etc. connected to the water surface control room. Integrated attitude monitoring system inside. A sonar frame 5 is respectively arranged at the front and rear ends of the main frame 1, and a sonar 6 is respectively arranged on each sonar frame 5, and the sonar 6 is used for positioning the submarine pipelin...

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Abstract

The invention relates to a seabed excavator with dual functions, which is characterized in that the invention comprises a main framework and a slide body which is arranged on the lower portion of the two sides of the main framework, wherein the framework on the middle portion of the main framework is a water delivery main pipe which is constituted by hollow pipes, and the middle portion of the main framework is provided with a buoyancy and instrument barrel which is provided with an attitude comprehensive monitor system which is connected with a waterborne control chamber and comprises a conventional monitor device, a control circuit, and a sonar-receiving device. The front side and the rear side of the main framework are respectively provided with sonar, and the two sides of the buoyancy and instrument barrel are respectively provided with an axial flow pump which is driven by a motor, the main framework downside of the water delivery main pipe is connected with two rows of nozzles through a water delivery branch pipe, the motor and sonar of the axial flow pump are respectively connected with the control circuit through transmission cables. The invention can be extensively applied to seabed excavating and trench-digging and paving seabed pipelines, and maintenance process of pipelines.

Description

technical field [0001] The invention relates to a seabed excavator, in particular to a seabed excavator with dual functions, which can not only carry out foundation excavation for maintenance of seabed pipelines, but also carry out ditching and embedding of seabed pipelines. Background technique [0002] In offshore oil and natural gas development projects, in order to transport oil and gas to land or oil storage systems, a large number of submarine pipelines need to be dug and laid on the seabed, and these pipelines will gradually appear damage phenomena such as deformation, fracture and leakage during use, so timely , Effectively repairing damaged pipelines and laying new pipelines are important supporting projects in offshore oil and gas development projects. Before the maintenance of underwater pipelines, it is necessary to excavate the foundation of the seabed to expose the pipelines and form a certain range of working surfaces around the maintenance point. Therefore, i...

Claims

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Application Information

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IPC IPC(8): E02F5/02
Inventor 王道炎房晓明李长春任平吴超王玉娟唐荣庆葛彤马洪新潘东民高峰
Owner CHINA NAT OFFSHORE OIL CORP
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