Fire-extinguishing system special for wind driven generator cabin

Abstract

The invention discloses a fire-extinguishing system special for a wind driven generator cabin. The system comprises a gas fire-extinguishing system, a wind driven generator cabin tuyere emergency closing system and an information and control system; the gas fire-extinguishing system comprises a fire-fighting nozzle and a temperature controlled fire-extinguishing agent heat preservation storage device; the wind driven generator cabin tuyere emergency closing system comprises a filling device, a soft capsule communicated with the filling device through a filling pipeline and a control device for controlling opening and closing of the filling device; and the information and control system comprises a wind driven generator cabin field controller and a remote after-sale service system. The system integrates fire detection, automatic start, automatic release, information acquisition and feedback, has an automatic constant temperature function, is accurate and quick in response, low in false alarm rate, convenient to arrange and reliable in structure, completely does not depend on power for starting, can effectively adapt to the severe working environment of a wind driven generator unit, and can quickly realize automatic fire extinguishment and reduce the loss to minimum once a fire happens in the generator cabin.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing systems, in particular to a special gas fire extinguishing system for a wind power generator nacelle. Background technique [0002] For high-cost wind turbines, the loss caused by a fire is huge. In addition to huge economic losses, it will also cause huge hidden dangers to the safety of the power grid. The surrounding environment and personnel pose safety threats, and various toxic and harmful substances produced by unit combustion will also cause serious pollution to the atmosphere and water resources and environment. [0003] At present, countries around the world have successively formulated and promulgated a number of fire protection codes for wind turbines. However, neither the wind turbine manufacturing industry nor the fire protection industry has formulated relevant fire protection design specifications in China. Frequent fire accidents in wind turbine cabins over the years hav...

AI Technical Summary

Problems solved by technology

[0005] 1. The extremely low temperature of the working environment in the cabin can reach below -40°C, and the extremely high temperature can reach above +50°C, which will adversely affect the long-term reliable operation of fire detection and fire extinguishing equipment. The fire extinguishing system of the wind turbine cabin must have a special Ability to work normally under high temperature environment;

[0006] 2. There is strong vibration in the cabin, especially the lateral vibration has a great impact on the reliable operation of the equipment, and the fire detection and fire extinguishing equipment is required to have good anti-seismic performance;

[0007] 3. There is a strong electromagnetic field in the cabin, which seriously affects the reliable operation of electrical equipment, requiring fire detection and fire extinguishing equipment to have good anti-electromagnetic interference performance;

[0008] 4. There are a wide variety of combustible materials in the cabin, there are many and uncertain fire hazards, and it is difficult to arrange fire detection points;

[0009] 5. The high-speed braking of the impeller unit produces smoke and dust, which reduces the alarm accuracy of various smoke-sensitive fire extinguishing alarms, causing a large number of false alarms, making fire detection difficult and expensive;

[0010] 6. The cabin has a good ventilation design, which seriously affects the effect of the total flooding fire extinguishing method;

[0011] 7. The generator equipment is expensive, the cabin space is narrow, the equipment is dense, the shelter is serious, the maintenance and cleaning are difficult, and the fire extinguishing equipment is required to be small.

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