Seawater lifting system and lifting speed control method

Abstract

The invention provides a seawater lifting system and a lifting speed control method. The seawater lifting system comprises a seawater lifting pipe device, a steel wire rope winch, a cable winch, a locking device, a steel wire rope guide device, a cable guide device and an electric control device. A steel wire rope on the seawater riser device is connected with the steel wire rope winch after passing through the steel wire rope guide device; a submersible pump cable on the seawater riser device is connected with the cable winch; the locking device is arranged on the pile fixing chamber and used for fixing the seawater lifting pipe. The electric control device is connected with the steel wire rope winch, the cable winch, the steel wire rope guiding device and the cable guiding device and monitors the winding and unwinding speed of the steel wire rope guiding device and the cable guiding device so as to adjust and control the output speed of the motor. The stability of long-term operation of the seawater lifting pipe can be guaranteed, a solid guarantee is provided for platform operation, the movement speed of the steel wire rope and the movement speed of the cable can be unified, and the situation that the steel wire rope and the cable are broken due to pulling caused by inconsistent movement speed of the steel wire rope and the cable is avoided.

Description

technical field [0001] The present application relates to the technical field of seawater lifting systems, and in particular, to a seawater lifting system and a lifting speed control method. Background technique [0002] At present, when the jack-up offshore wind power installation platform is in normal operation, the main body of the platform is mostly raised about 7-10m above the sea surface. A set of seawater supply system is provided by the seawater, which lifts the seawater from the sea surface to the platform. The seawater supply system usually includes a seawater lift tower, which is an important part of the offshore operating platform. The current seawater lifting tower directly lifts the suction pipe for pumping operation. Due to the high lifting tower and the strong offshore wind and waves, the suction pipe is easily deviated, resulting in bending or even breaking of the suction pipe and cable, resulting in failure of the operation. [0003] The stability of the ...

AI Technical Summary

Problems solved by technology

The electric control device performs unified motion control on the wire rope winch and the cable winch, which can solve the situation that the speed of the wire rope and the cable is inconsistent, and avoid the situation that the wire rope and the cable are pulled and broken due to inconsistent speeds

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