Wind turbine heating and cooling device

Abstract

The invention discloses a heating and cooling device of a wind turbine generator system, which comprises an engine room casing and a gear case located inside the engine room casing. The gear case is full of lubricating oil and is provided with an oil pump, a heating box and a gravity assisted heat pipe. The heating and cooling device adopts isolated circulatory heating, the temperature is controllable, and the contact area of the oil and a heater is big, so the heating efficiency is high and the oversize temperature difference caused by uneven heating of the local parts is avoided. Heating pipes are evenly distributed at the upper part of the gear case, so the heat pipes are convenient to replace in the heating box. The heating and cooling device adopts the gravity heat pipe together with fins for cooling, so the cooling efficiency is high, the response speed is quick and no extra power source is needed. No pump station or radiator fan is needed in the cooling process, so the noise during the operation is small and the comfort level is increased. The heating and cooling device can continuously supply heat to the engine room to avoid moisture condensation caused by big temperature difference between daytime and night. The heating and cooling device enables the air inside the engine room to exchange heat with the oil inside the gear case, and by adjusting a scavenging port and a ventilator of the engine room, the temperature inside the engine room can be enabled not to be excessively low and no extra heating is needed.

Description

technical field [0001] The invention relates to a heating and cooling device for a wind power generating set. Background technique [0002] In order to ensure the long-term safe, stable and efficient operation of wind turbines in various environments, the cooling and heating devices of the gearbox play a key role. [0003] At present, the cooling and heating devices of traditional wind power gearboxes on the market are mostly independent, and the heating is through the electric heating box embedded in the gearbox. This kind of heating device has low efficiency and long heating time, especially under low temperature conditions. Obviously, the uneven heating of this local heating method can easily lead to excessive local temperature and oil deterioration. This heating box is installed at the bottom of the gearbox, and it is difficult to replace it once it is damaged; the traditional cooling methods of gearboxes include forced air cooling or forced cooling. Water-cooled, force...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that most of the existing wind power gearbox cooling and heating devices are independently separated, the heating device has low efficiency, long heating time, difficult maintenance, low cooling device efficiency, large energy consumption, and the cooling fan Loud noise, coolant needs to be replaced regularly, increasing maintenance difficulty and cost

Images