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Automatic control method and device for lifting ocean platform

A technology of automatic control device and offshore platform, applied in water conservancy projects, artificial islands, underwater structures, etc., can solve the problems of difficult operation, low work efficiency, poor safety, etc., to simplify complex operations, improve work efficiency, The effect of preventing structural damage

Active Publication Date: 2013-09-04
WUHAN MARINE MACHINERY PLANT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects and deficiencies of the existing manual control operation mode for the control of the lifting of the offshore platform, which is difficult to operate, low in work efficiency, and poor in safety, and to provide an automatic control method and automatic control device for the lifting of the offshore platform. That is to use real-time detection of platform levelness, and through the measured platform inclination data, use the PID algorithm to correct the running speed of the pile legs in real time, control the synchronous lifting of the pile legs and control the level of the platform, and realize the safe and stable automatic control of the lifting of the offshore platform. The automatic control method and automatic control device are easy to operate and highly safe

Method used

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  • Automatic control method and device for lifting ocean platform

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] The automatic control method for the lifting of the offshore platform of the present invention includes the following steps:

[0032] A1. The electronic level detects the inclination angle of the platform relative to the horizontal plane, and inputs the angle value to the main controller;

[0033] A2. The main controller calculates the horizontal tilt displacement △X1 and the vertical tilt displacement △Y1 of each pile leg relative to the base point according to the input angle value, and then feeds back the proportional coefficient K according to the preset x-axis of the platform x And platform y-axis feedback proportional coefficient K x , corrected according to the following formula: △X=K x △X1, △Y=K y △Y1, get the corrected horizontal tilt displacement △X and vertical tilt displacement △Y, where K x and K y The value of 0.0...

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Abstract

An automatic control method for lifting an ocean platform is disclosed, and comprises the steps that an electronic level meter detects the inclined angle of the platform and inputting the inclined angle to a main controller; the main controller corrects the inclination data of the platform according to predetermined coefficients Kx and Ky; a linkage operating handle inputs the handle speed command Vo to the main controller and the main controller applies PID (Proportion Integration Differentiation) algorithm to acquire the leg running speed Vout and inputting the Vout to a speed control valve; the speed control valve controls a hydraulic motor to control the leg to run according to the speed command till the platform is lifted. The invention further discloses an automatic control device for lifting an ocean platform. The electric level meter is connected on the platform. The output end of the electric level meter is connected with the input end of the main controller and the output end of the main controller is connected with the speed control valve of each leg. The automatic control method and device for lifting an ocean platform control the leg to life synchronously and maintain the platform by adopting closed-loop control of platform gesture, and are simple to operate and have high safety.

Description

technical field [0001] The invention relates to a lifting and lowering automatic control method and an automatic control device of an ocean platform, belonging to the technical field of automatic control. Background technique [0002] Offshore platforms provide a convenient and stable offshore operation and living place for human beings to develop and utilize marine resources. The utilization and construction of offshore airports and offshore factories have been more and more widely used in many fields. The offshore platform is composed of a platform and a number of legs that can be lifted and supported. There are generally three legs, which are respectively located at the load-bearing end points of the main hull of the platform. During operation, the platform is supported by the legs and lifted above the sea surface so that Carry out water operations; when transferring, pull up the legs, lower the platform and float on the water surface, and then it can be towed and moved....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B17/08
Inventor 马志刚温新民徐潇周建良赵丽雄毛玉国李海
Owner WUHAN MARINE MACHINERY PLANT
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