Lubricating oil secondary cooling system for wind power gear box

Abstract

The invention provides a lubricating oil secondary cooling system for a wind power gear box, and relates to a cooling technology for the field of wind power generation, in particular to a cooling system for lubricating oil of a wind power gear box system. The lubricating oil secondary cooling system comprises a primary cooling system and a secondary cooling system. The secondary cooling system is a water cooling circulating system, and the secondary cooling system is connected with a water inlet and a water outlet of a plate type cooler to secondarily cool the lubricating oil. A water inlet of a natural air cooling plate of the secondary cooling system is connected with the water outlet of the plate type cooler, and a water outlet of the natural air cooling plate is connected with a suction opening of a water pump. A water outlet of the water pump is connected with the water inlet of the plate type cooler. An expansion tank is connected with an overflow opening of the water pump. A charging ball valve, a safety valve, a pressure switch II, a pressure meter II and an exhaust valve are connected with the expansion tank through valve blocks. The lubricating oil secondary cooling system has the advantages that high-temperature alarm failures, caused by blockage of oil dirt, catkins and the like, of a gear box air cooler are fundamentally solved, the structure is novel, installation and use are easy, the refrigeration effect is good, energy is saved, and the operating cost is reduced.

Description

technical field [0001] The secondary cooling system for lubricating oil of a wind power gear box according to the present invention relates to a cooling technology in the field of wind power generation, in particular to a cooling system for lubricating oil of a wind power gear box system. Background technique [0002] Wind power generation equipment is a complex energy transfer process that converts wind energy into electrical energy through the rotation of the blades to drive the generator. Among them, the double-fed wind turbine uses a gearbox to realize the transmission link between the blades and the generator. As the core component of wind power generation equipment, the gearbox needs lubrication and cooling during the gear transmission process to ensure the continuous operation of the gearbox under suitable working conditions. At present, the cooling of gearbox lubrication systems commonly used in the market generally adopts air-oil heat exchange air coolers. The envi...

AI Technical Summary

Problems solved by technology

The environment where the fan is generally located is relatively harsh plateau or desert area, and the air cooler is generally installed on the upper part of the gearbox. When the air cooler is working, the oil mist volatilized by the gearbox at high temperature will be adsorbed on the cooling plate. , mixed with pollutants such as sand, dust and catkins in the environment to form a solid sludge that is difficult to clean, causing a sharp drop in the heat dissipation power of the air cooler, thereby weakening the cooling effect of the gearbox, and finally causing the gearbox high temperature alarm fan to stop

This kind of situation is a very common fault in the current wind farm, which has caused serious losses to the owner

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