An efficient ice melting system for wind turbine blades using latent heat of water

Abstract

The invention discloses a high-efficiency ice-melting system for wind power generation blades utilizing latent heat of water. , blade water supply pipe, engine room, rotating sleeve, sealing gasket, return water chamber, return water pipe, return water chamber drain pipe, return water chamber drain valve, water supply chamber, water supply pipe, water supply chamber drain pipe, water supply chamber drain valve, Tower, tee, water supply regulating valve, water tank water supply pipe, water supply and return valve, water supply pump, water supply and return pipe, water storage tank, heater, power supply, temperature sensor, return water valve and controller. The invention can melt the ice layer on the surface of the wind power blade by using the latent heat of solidification released when a small amount of water freezes without affecting the rotation of the wind power blade, the ice melting efficiency is higher, the heat release of the system is adjustable, and the adaptability to a wide range of working conditions , The heat dissipation phenomenon is weak, energy saving and environmental protection, which is convenient for large-scale promotion and application.

Description

technical field [0001] The invention relates to the field of ice melting of wind power blades, in particular to an efficient ice melting system of wind power blades utilizing latent heat of water. Background technique [0002] In northern China, people store Chinese cabbage in cellars, and put several buckets of water in the cellar, using the latent heat released when the water solidifies to maintain the temperature in the cellar, so as not to freeze the cabbage. In the same way, the latent heat released when water freezes can also be used for deicing wind turbine blades. Wind turbines working in cold conditions may have blade icing problems, which seriously reduce the power generation efficiency, response characteristics and service life of wind turbine blades. At present, most of the wind power blade ice melting systems use hot water for deicing. Since the specific heat capacity of water is only 4.2kJ / (kg·℃), the use of the sensible heat of water to melt the ice layer has...

AI Technical Summary

Problems solved by technology

At present, most wind power blade melting systems use hot water for deicing. Since the specific heat capacity of water is only 4.2kJ / (kg·℃), using the sensible heat of water to melt the ice layer has the disadvantages of low efficiency and long time consumption. Moreover, the temperature difference between the hot water and the environment is large, which is not conducive to heat preservation, and a large amount of heat escapes into the environment, resulting in a waste of energy.

Images