CN-116049602-B - Simple measuring and calculating method and system for mooring tension of floating wind power platform

CN116049602BCN 116049602 BCN116049602 BCN 116049602BCN-116049602-B

Abstract

The invention provides a simple calculation method and a simple calculation system for mooring tension of a floating wind power platform, the proposal is that a winch is subjected to chain-drawing operation, when the winch is operated from an initial state to a state that a hydraulic cylinder is vertical, the winch is stopped and maintained, checking the pressure value of the oil cylinder, calculating the measuring and calculating pulling force of the mooring chain by adopting a moment balance formula according to the predicted no-load pressure value, and calculating the mooring pulling force according to the measuring and calculating pulling force based on the measuring range of the failure sensor. Therefore, the mooring tension force can be rapidly calculated during the failure period of the mooring tension sensor of the offshore floating wind power platform, the mooring tension force can be effectively controlled, and the mooring safety is ensured.

Inventors

LIU TAO
JIANG YUNHE
HOU CHENGYU
ZHANG WANJUN
WANG YE
DONG YEHONG
WU WENSONG
SHEN KE

Assignees

中国船舶重工集团海装风电股份有限公司

Dates

Publication Date: 20260512
Application Date: 20230116

Claims (6)

1. The simple measuring and calculating method for the mooring tension of the floating wind power platform is characterized by comprising the following steps of: Carrying out chain-retracting operation on a winch corresponding to the failure sensor, and stopping and maintaining pressure when the winch runs from an initial state to a state that the hydraulic cylinder is vertical; checking an oil cylinder pressure value displayed by an oil cylinder of the winch, and acquiring an idle load pressure value of the winch; According to the oil cylinder pressure value and the idle pressure value, calculating the measuring and calculating tension of the mooring chain by adopting a moment balance formula, wherein the formula is as follows: Wherein, the In order to measure and calculate the tension of the mooring chain, The radius of the oil cylinder is; mechanical efficiency of the winch; the vertical distance from the winch center to the axis of the oil cylinder; is centered to the winch mooring chain axis distance; the pressure value of the oil cylinder is displayed for the oil cylinder; is no-load pressure; calculating the duty ratio of the measuring and calculating tension compared with the measuring range of the failure sensor, selecting a corresponding preset coefficient according to the duty ratio, and calculating mooring tension according to the preset coefficient and the measuring and calculating tension, wherein the specific calculation formula is as follows: ; Wherein, the In order to measure and calculate the tensile force, In order to set the coefficient to be the preset value, For mooring tension.
2. The method for simply measuring and calculating the mooring tension of the floating wind power platform according to claim 1, wherein the idle pressure is the pressure of the winch without a mooring chain.
3. The simple measurement method of mooring tension of the floating wind power platform according to claim 1, wherein the preset coefficient is determined by a winch rated mooring tension which changes synchronously and a pressure value fed back by a winch hydraulic cylinder.
4. The utility model provides a simple and easy measuring and calculating system of showy wind power platform mooring tension, its characterized in that includes chain module, pressure value acquisition module, calculates pulling force module and pulling force calculation module, wherein: The chain-winding module is used for performing chain-winding operation on the winch corresponding to the failure sensor, and stopping and maintaining pressure when the winch runs from an initial state to a state that the hydraulic cylinder is vertical; the pressure value acquisition module is used for checking an oil cylinder pressure value displayed by an oil cylinder of the winch and acquiring an idle pressure value of the winch; The tension measuring and calculating module is used for calculating the measuring and calculating tension of the mooring chain by adopting a moment balance formula according to the oil cylinder pressure value and the idle pressure value, and the formula is as follows: Wherein, the In order to measure and calculate the tension of the mooring chain, The radius of the oil cylinder is; mechanical efficiency of the winch; the vertical distance from the winch center to the axis of the oil cylinder; is centered to the winch mooring chain axis distance; the pressure value of the oil cylinder is displayed for the oil cylinder; is no-load pressure; The tension calculation module is used for calculating the duty ratio of the measuring range of the measuring and calculating tension compared with the measuring range of the failure sensor, selecting a corresponding preset coefficient according to the duty ratio, and calculating the mooring tension according to the preset coefficient and the measuring and calculating tension, wherein the specific calculation formula is as follows: ; Wherein, the In order to measure and calculate the tensile force, In order to set the coefficient to be the preset value, For mooring tension.
5. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any one of claims 1 to 3 when the computer program is executed by the processor.
6. A storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the method of any of claims 1 to 3.

Description

Simple measuring and calculating method and system for mooring tension of floating wind power platform Technical Field The invention relates to the technical field of wind power generation, in particular to a simple measuring and calculating method and system for mooring tension of a floating wind power platform. Background The mooring system is a key component of the floating wind power platform, the mooring system is related to the limit and operation safety of the whole floating wind power platform, so that the mooring tension needs to be monitored, the mooring system is composed of a winch, a chain stopper, a mooring chain and the like, a strain gauge is preloaded in a hollow shaft sealed by the chain stopper before delivery as a mooring tension sensor, for example, the strain gauge drops or is damaged once being influenced by installation quality, abrupt impact and the like, for the floating wind power platform with the offshore distance of tens kilometers, the components can not be quickly disassembled and replaced by a ship machine in a short period, the mooring tension is unknown during the period, and the floating wind power platform has potential safety hazards for the marine environment with complex and changeable wind wave flows. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a simple measuring and calculating method and a simple measuring and calculating system for mooring tension of a floating wind power platform, which are used for solving the technical problems that the mooring tension sensor in the prior art is unexpected, so that parts can not be quickly assembled, disassembled and replaced in a short period, the mooring tension is unknown, and the potential safety hazard of the floating wind power platform is increased. A simple calculation method for mooring tension of a floating wind power platform comprises the steps of carrying out chain-retracting operation on a winch corresponding to a failure sensor, stopping and maintaining pressure when the winch is operated from an initial state to a state that a hydraulic oil cylinder is vertical, checking an oil cylinder pressure value displayed by the oil cylinder of the winch, obtaining an idle pressure value of the winch, calculating calculation tension of a mooring chain according to the oil cylinder pressure value and the idle pressure value by adopting a moment balance formula, and calculating the mooring tension according to the calculation tension based on the measuring range of the failure sensor. In one embodiment, according to the cylinder pressure value and the idle pressure value, a formula for calculating the measured and calculated tension of the mooring chain by using a moment balance formula is as follows: P=P Oil cylinder -P No-load Wherein F is the measured and calculated pulling force of the mooring chain, r is the radius of the oil cylinder, eta is the mechanical efficiency of the winch, A is the vertical distance from the center of the winch to the axis of the oil cylinder, B is the distance from the center of the winch to the axis of the mooring chain, P Oil cylinder is the oil cylinder pressure value displayed by the oil cylinder, and P No-load is the idle pressure. In one embodiment, the idle pressure is the pressure at which the winch does not carry a mooring chain. In one embodiment, the step of calculating the mooring tension based on the measuring range of the failure sensor according to the measured tension comprises calculating a duty ratio of the measured tension relative to the measuring range of the failure sensor, selecting a corresponding preset coefficient according to the duty ratio, calculating the mooring tension according to the preset coefficient and the measured tension, F=μF Original, original Wherein F Original, original is mooring tension, mu is a preset coefficient, and F is the measured and calculated tension of a mooring chain. In one embodiment, the preset coefficient is determined by a synchronously changing rated mooring tension of the winch and a pressure value fed back by the winch hydraulic cylinder. The simple calculation system for the mooring tension of the floating wind power platform comprises a chain collecting module, a pressure value acquisition module, a calculation tension module and a tension calculation module, wherein the chain collecting module is used for carrying out chain collecting operation on a winch corresponding to a failure sensor, stopping and maintaining pressure when the winch runs from an initial state to a hydraulic cylinder in a vertical state, the pressure value acquisition module is used for checking a cylinder pressure value displayed by the cylinder of the winch and acquiring an idle pressure value of the winch, the calculation tension module is used for calculating the calculation tension of a mooring chain according to the cylinder pressure value and the idle pressure value by adopting a moment balance formula