Lubricating system of main gear box of wind generating set and main gear box

Abstract

The invention discloses a lubricating system of a main gear box of a wind generating set. The lubricating system comprises a circulating pump, an on-line filter, an off-line fine filter, a temperature control valve, a radiator and an oil distributor; an inlet of the circulating pump is connected with an oil outlet of the main gear box, an outlet of the circulating pump is connected with an inlet of the on-line filter, an outlet of the on-line filter is respectively connected with inlets of the off-line fine filter, the temperature control valve and the oil distributor, an outlet of the off-line fine filter is connected with an inlet of the oil distributor, an outlet of the temperature control valve is connected with the inlet of the oil distributor through the radiator, and an outlet of the oil distributor is connected with an oil return opening of the main gear box. The invention further discloses the main gear box of the wind generating set. The main gear box of the wind generating set comprises the lubricating system of the main gear box of the wind generating set. The lubricating system has the advantages that the lubricating system is simple in structure, low in cost, capable of reasonably utilizing the off-line fine filter, capable of guaranteeing the high cleanliness of lubricating oil and the like.

Description

technical field [0001] The invention relates to a wind power generating set, in particular to a lubricating system for a main gear box of a wind power generating set and the main gear box. Background technique [0002] The main gearbox is the core component of the megawatt-scale doubly-fed wind turbine (hereinafter referred to as "wind turbine"), with a design life of 20 years. The reliability and accuracy of the main gearbox are very high, resulting in high manufacturing costs and high replacement costs after failure. In order to ensure its service life, the current main gearbox has its own lubrication system, which is equipped with a circulation pump (including motor, oil pump, etc.), in-line filter, temperature control valve, radiator, etc. When the fan is running, the lubrication system continues to work, the online filter filters the lubricating oil, and the radiator cools the lubricating oil to ensure the normal operation of the main gearbox. Affected by the amount of...

AI Technical Summary

Problems solved by technology

The off-line fine filter entered the wind power industry relatively late. At present, it basically exists independently in the form of a bypass and is connected in parallel with the online filter. The fine filter is blocked prematurely, and its advantages have not been brought into play. At the same time, the cost of the offline fine filter element is higher than that of the online filter element, and it also increases the maintenance cost of the fan.

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