Plug type ocean lifting platform synchronous hydraulic system and control method thereof

A lifting platform and hydraulic system technology, applied in the direction of fluid pressure actuators, servo motors, servo motor components, etc., can solve the problems of high cost, small investment, complex mechanism, etc.

Pending Publication Date: 2018-06-22
DALIAN HUARUI HEAVY IND GRP CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The rack-and-pinion lifting system has fast lifting speed, but the cost is expensive and the mechanism is complicated; the pin-type hydraulic lifting system has adjustable lifting speed, small investment and simple operation, especially the hydraulic system runs smoothly, with small inertia, quick response, and easy operation. automation control
[0003]...

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  • Plug type ocean lifting platform synchronous hydraulic system and control method thereof
  • Plug type ocean lifting platform synchronous hydraulic system and control method thereof

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Embodiment Construction

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] like figure 1 and figure 2 As shown, a synchronous hydraulic system of a plug-type offshore lifting platform includes a first oil inlet pipeline, a second oil inlet pipeline, an oil return pipeline and an oil discharge pipeline;

[0045] The first oil inlet pipeline communicates with the inlet of the inlet pressure compensator 3.1 t...

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Abstract

The invention discloses a plug type ocean lifting platform synchronous hydraulic system and a control method thereof. The hydraulic system comprises a first oil inlet pipeline, a second oil inlet pipeline, an oil return pipeline and an oil discharge pipeline and four oil inlet control devices for controlling corresponding lifting oil cylinders to ascend and descend; each oil inlet control device comprises a rod cavity oil inlet assembly for supplying oil to a rod cavity of the corresponding lifting oil cylinder and a rodless cavity oil inlet assembly for supplying oil to a rodless cavity of the corresponding oil cylinder; the hydraulic cylinder further comprises an upper plug control valve assembly and a lower plug control valve assembly. By adopting a parallel pipeline of rodless cavity electromagnetic ball valves and rodless cavity throttling valves of the rodless cavity oil inlet assemblies, synchronous operation of the lifting oil cylinders is achieved by detecting the stretchabledisplacement difference between the lifting oil cylinders and turning on or off the rodless cavity electromagnetic ball valves at the right moment.

Description

technical field [0001] The invention relates to the technical field of marine engineering, in particular to a synchronous hydraulic control system of a plug-type marine lifting platform. Background technique [0002] The jack-up platform is a kind of marine structure with lifting function widely used in marine engineering, which realizes the lifting of the platform through the lifting system. The lifting mechanism can be divided into rack and pinion type and hydraulic pin type. The rack-and-pinion lifting system has fast lifting speed, but the cost is expensive and the mechanism is complicated; the pin-type hydraulic lifting system has adjustable lifting speed, small investment and simple operation, especially the hydraulic system runs smoothly, with small inertia, quick response, and easy operation. automation control. [0003] At present, the commonly used hydraulic pin-type lifting platform adopts multi-cylinder and multi-pile control, and the multi-cylinder lifting in ...

Claims

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Application Information

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IPC IPC(8): F15B11/08F15B13/02
CPCF15B11/08F15B13/024
Inventor 贾仁敏陈强邹冬生
Owner DALIAN HUARUI HEAVY IND GRP CO LTD
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