Emergency controller for lifting ocean platform
An emergency control device and offshore platform technology, applied in water conservancy projects, artificial islands, underwater structures, etc., can solve the problems of inability to control emergency lifting of offshore platforms, lack of emergency control functional units, and affect the normal operation of offshore platforms, etc., to achieve The emergency control operation is simple and reliable, the switching operation is convenient and reliable, and the effect of high safety
Active Publication Date: 2013-09-04
WUHAN MARINE MACHINERY PLANT
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Problems solved by technology
[0005] The present invention aims at the defect and deficiency that the lifting control device of the existing offshore platform lacks an emergency control function unit, cannot control the emergency lifting of the offshore platform when the control system fails, affects the normal operation of the offshore platform, and seriously even endangers the safety of the platform. The lifting emergency control device of the offshore platform, the power supply and control circuit are independent of the PLC main control system, the main control circuit and the emergency control circuit are switched by relays, and the emergency control signal uses the master switch output signal, which has a simple structure, low cost, safety and reliability , it can emergency control the lifting of the platform when the main control system fails to ensure the safety of the platform
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[0020] see figure 1 , the lifting emergency control device of the offshore platform provided by the present invention includes an emergency power supply, an emergency switch, a master switch, a control relay K1, a rising relay K2, a falling relay K3, a rising potentiometer, a rising proportional valve controller, and a rising proportional valve And rising solenoid valve, also includes down potentiometer, down proportional valve controller, down proportional valve and down solenoid valve. Wherein, the S5 end of the ascending proportional valve controller is connected to the input end of the ascending proportional valve, and the S5 end of the descending proportional valve controller is connected to the input end of the descending proportional valve. The emergency power supply provides power for the emergency control system. The emergency power supply is independent from the main power supply, provided by the battery of the shipyard, and distributed to the emergency control syst...
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An emergency controller for lifting an ocean platform is disclosed, and comprises an emergency power supply, an emergency switch, a master switch, a control relay K, an ascending relay K2, a descending relay K3, an ascending potentiometer and a descending potentiometer and a hydraulic control valve set shared with a main control device. The emergency controller switches between the main power supply and the emergency power supply by the master switch and a plurality of relays and switches the output control signals of the main controller and the potentiometer so as to switch between the main control loop and the emergency control loop to fulfill emergency control for lifting the ocean platform. The emergency controller for lifting an ocean platform provided by the invention is able to perform emergency control of the ocean platform when the main control system fails so as to ensure the normal operation of the ocean platform and guarantee the structural safety of the ocean platform. And the emergency device has fewer newly added elements, is low in cost, simple to connect circuit and convenient to install and maintain. The relays are convenient and reliable to switch with high safety.
Description
technical field [0001] The invention relates to a lifting emergency control device of an ocean platform, which belongs to the technical field of automatic control. Background technique [0002] The lifting of offshore platforms is generally controlled by a PLC control device, which has precise control, stable movement, high safety and reliability, and can effectively improve the performance of the hydraulic system, prolong the service life of hydraulic equipment, and realize the integration of mechanical, electrical and hydraulic control devices. The structure of the control equipment is greatly simplified, saving energy and reducing consumption. The power supply of the offshore platform PLC control system is provided by the power supply cabinet, the power supply is DC 24V, and the control system is a distributed control system composed of PLC and Prifibus DP bus. During the lifting process of the platform, the PLC analog output module outputs a differential voltage signal ...
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IPC IPC(8): E02B17/08
Inventor 马志刚徐潇温新民周建良赵丽雄毛玉国李海
Owner WUHAN MARINE MACHINERY PLANT