Automatic fire extinguishing method for wind turbine generator

Abstract

The invention discloses an automatic fire extinguishing system of a wind turbine generator, and relates to the field of unit fire extinguishing, and the automatic fire extinguishing system comprises the following steps: collecting real-time temperature signals of a front-end monitoring area of a dry powder fire extinguishing device; performing data algorithm identification on the real-time temperature signal to obtain real-time temperature numerical value information; reading a local database, and acquiring preset fire extinguishing temperature numerical value information from the local database; and comparing the real-time temperature numerical value information based on the preset fire extinguishing temperature numerical value information. Through real-time temperature acquisition and comparison, independent setting, independent control, independent feedback and mutual independence of the fire extinguishing units, configuration and accurate fire extinguishing of fire extinguishing equipment can be carried out according to different requirements, so that timely power failure and fire extinguishing work when a fire occurs are guaranteed, the fire of unit equipment can be accurately extinguished, and the fire extinguishing efficiency is improved. And fire expansion is effectively prevented, the burning influence of a fire extinguishing medium on other equipment when the fire occurs is eradicated, and the loss of the unit when the fire occurs is reduced.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing of wind turbines, in particular to an automatic fire extinguishing method for wind turbines. Background technique [0002] The main equipment of the 3MW wind turbine is located at the top of the tower, which is 90m above the ground. The existing fire-fighting ladder truck cannot reach the fire point, making it difficult to extinguish. Most of the wind farms are located on the edge, and personnel cannot rescue them in time. And the aging of mechanical parts, the probability of fire in the unit increases year by year. Usually, a single wind turbine is equipped with two hand-held fire extinguishers. The value of a single wind turbine is high. Once a fire occurs, it will cause huge property losses and power generation losses. As a power generation equipment that operates in the wild for a long time, it is faced with unfavorable conditions such as lightning strikes, high and low temperature ...

AI Technical Summary

Problems solved by technology

[0002] The main equipment of the 3MW wind turbine is located on the top of the tower, 90m above the ground. The existing fire ladder truck cannot reach the fire point, making it difficult to extinguish it. Most of the wind farms are located on the edge, and personnel cannot rescue them in time. In addition, with the electrical Due to the aging of mechanical parts, the probability of unit fires is increasing year by year. Usually, a single fan unit is equipped with two hand-held fire extinguishers. The value of a single wind turbine unit is high. Once a fire occurs, it will cause huge property losses and loss of power generation. As a power generation equipment operating in the field for a long time, it faces adverse conditions such as lightning strikes, high and low temperature externally, and internally faces risks such as aging of electromechanical components and performance degradation, which will lead to fires

[0003] The current automatic fan fire extinguishing device adopts the method of installing a set of linkage equipment inside the engine room, and adopts a single control module. Most of the filling materials in the fire extinguishing equipment are ultra-fine dry powder. When extinguishing a fire, it can isolate oxygen and chemical reactions through physical coverage. Interrupt the combustion reaction chain to achieve the effect of instant fire extinguishing, but the dry powder fire extinguisher has a great impact on expensive precision instruments such as the frequency converter control board in the electrical cabinet. If the dry powder fire extinguisher is not cleaned up in time after the fire is extinguished, the residual dry powder may occur Secondary fire or explosion phenomenon, thus causing unnecessary losses to the unit

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