Large fan blade deicing system and method thereof

Abstract

The invention relates to a deicing system for large fan generator set blades, which comprises a temperature measurement sensor, a control system and a deicing assembly, wherein the deicing assembly comprises an exhaust fan and a heater; the temperature measurement sensor is arranged in a blade to monitor the temperature of the blade in real time and transmit a temperature signal to the control system; when the temperature of the blade is too low, the control system actuates the exhaust fan and the heater; the exhaust fan extracts air; and hot air is subjected to thermal cycle in the blade, so that the temperature of the blade rises to remove an ice layer on the surface of the blade. The precision degree of the temperature measurement sensor adopted by the deicing system is high, the blade temperature variation can be detected in time, and the detection reliability of the blade icing situation is improved. The temperature of the blade can be quickly improved according to the heater and the exhaust fan so as to achieve a purpose of removing a blade ice layer.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a blade deicing system for a wind power generating set. Background technique [0002] With the outbreak of the energy crisis worldwide, wind energy and other renewable energy sources have received more and more attention. As an effective way to improve the utilization rate of wind energy and power generation efficiency, the capacity of wind turbines is constantly increasing. [0003] Wind power generation is a power generation method that converts the kinetic energy of the wind into electrical energy. The device required for wind power generation is called a wind turbine (hereinafter referred to as a fan), which generally includes three parts: a wind wheel, a generator and a tower. The working environment of the fan is outdoors where wind resources are relatively abundant. When the air temperature is low or the humidity is high, frost and ice may form on the fan bla...

AI Technical Summary

Problems solved by technology

[0004] Existing deicing technology and existing deficiencies: In a typical fan blade deicing device, different types of wind speeds are used to calculate the deviation of the signal to determine the icing status of the fan, or to determine the icing status of the fan by detecting the change of blade mass status

These methods for detecting icing conditions of wind turbines or blades may be misjudged as blades not icing, or misjudged as not icing due to blades being icy but not serious situation, so the reliability of the results is less

Images