Movable pushing device for sliding launch of large jacket

Abstract

The invention provides a movable pushing device for sliding launch of a large jacket. The movable pushing device is provided with a plurality of hydraulic jacks; the plurality of hydraulic jacks are respectively arranged on a plurality of slide rails; the front part and the rear part of each hydraulic jack are respectively provided with a fixing unit; and a pushing slide block is arranged in front of each fixing unit of the front part of each hydraulic jack. The pushing device can be flexibly and conveniently operated and can provide balance pushing forces; small space is occupied during construction, and the acting force can be accurately controlled, so that the occurrences of accidents is reduced and time and cost for installing offshore large modules are reduced; and on the premise of guaranteeing safety and reliability, the construction of an offshore oil platform and the construction progress of a project are accelerated and the project quality is improved.

Description

technical field [0001] The invention relates to a jacking device, in particular to a mobile jacking device for slipping and launching a large jacket, belonging to the field of offshore oil engineering. Background technique [0002] In offshore oil development projects, various platforms such as oil production platforms, living platforms, and central processing platforms need to be built offshore. The platform generally mainly includes: offshore engineering blocks, underwater support structures—jackets, single points, and other offshore engineering structures. These marine engineering structures are generally prefabricated on land first, and then transported to sea for installation. [0003] The installation of large jackets is a very complicated project. In the process of shipping large jackets, it is necessary to provide the jacking force for the sliding and launching of large jackets weighing tens of thousands of tons to control the large jackets. The rack slides into th...

AI Technical Summary

Problems solved by technology

[0004] At present, the method of boosting the winch is usually used to provide the jacking thrust for the sliding and launching of the large jacket. The weight of the jacket is large, and its friction is also large. Balance; while using the method of boosting the winch, the whole process takes about half a day because of the steps of winch positioning and pulley block insertion during operation, which is relatively complicated; the thrust provided is not easy to control, and some side forces are large , some sides are small, which is easy to cause accidents; and the stress on the large jacket is not uniform

Therefore, this method has low efficiency and low safety during the construction process, which has caused great difficulties to the construction and directly affected the quality and progress of the project.

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