Hydraulic control system for continuous lifting of ocean platform

Abstract

The invention discloses a hydraulic control system for continuous lifting of an ocean platform and belongs to the technical field of hydraulic systems. The input end of a hydraulic pump in the hydraulic control system communicates with an oil tank. The output end of the hydraulic pump communicates with an opening P of a first three-position and four-way reversing valve and an opening T of a second three-position and four-way reversing valve. An opening A and an opening B of the first three-position and four-way reversing valve communicate with a rod cavity and a rodless cavity of a first lifting oil cylinder correspondingly. An opening T of a first two-position and three-way reversing valve communicates with an opening T of the first three-position and four-way reversing valve and an opening A of the second three-position and four-way reversing valve. An opening A and an opening B of the first two-way and three-way reversing valve communicate with a rodless cavity and a rod cavity of a second lifting oil cylinder correspondingly. An opening P of the second three-position and four-way reversing valve communicates with an opening P of a second two-position and three-way reversing valve. An opening A and an opening B of the second two-position and three-way reversing valve communicate with the rod cavity and the rodless cavity of the first lifting oil cylinder correspondingly. According to the hydraulic control system for continuous lifting of the ocean platform, one hydraulic pump can be used for jointly controlling the two lifting oil cylinders.

Description

technical field [0001] The invention relates to the technical field of hydraulic systems, in particular to a continuous lifting hydraulic control system of an ocean platform. Background technique [0002] In the field of marine engineering technology, self-elevating offshore platforms are widely used, and the offshore platform usually needs to use a lifting system to drive the platform to continuously lift along the axis of the pile legs. [0003] The hydraulic continuous lifting system is a commonly used offshore platform lifting form. It is equipped with a moving ring beam and a fixed ring beam on the pile legs. The second lifting cylinder is connected. Both the movable ring beam and the fixed ring beam are equipped with bolt components inserted into the pile legs. Through the telescopic movement of the first lifting cylinder and the second lifting cylinder and the plugging action of the bolt components, the offshore platform can be completed along the pile legs. Axial co...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem in the prior art that both the first lifting cylinder and the second lifting cylinder are controlled by a set of control systems, resulting in increased control costs, the embodiment of the present invention provides a continuous lifting hydraulic control system for offshore platforms

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