Bearing bush burnout early warning and monitoring protection system of bulb cross-flow unit

Abstract

The invention discloses a bearing bush burnout early warning and monitoring protection system of a bulb cross-flow unit. The bulb cross-flow unit comprises a bulb head, a large shaft is arranged in the bulb head, the large shaft is sleeved with a bearing set, and the bulb cross-flow unit further comprises an oil supply system communicating with the bearing set. The bearing bush burnout early warning and monitoring protection system of the bulb cross-flow unit comprises an in-situ control unit electrically connected with the bulb cross-flow unit and a bearing oil supply oil level monitoring protection subsystem used for detecting the oil level value in the oil supply system. The bearing oil supply oil level monitoring protection subsystem comprises an oil level automatic detection unit electrically connected with the in-situ control unit. In the bearing bush burnout early warning and monitoring protection system of the bulb cross-flow unit, the oil level automatic detection unit in thebearing oil supply oil level monitoring protection subsystem can monitor the oil level height of lubricating oil in a high-level oil tank and a low-level oil tank in real time, when it is monitored that the oil level height is too small, remedial measures are taken to increase the oil level height, and therefore the accident that a bearing bush of the bulb cross-flow unit is burnt out due to the phenomenon that bearing oil supply is interrupted is avoided.

Description

【Technical field】 [0001] The present application relates to the technical field of bulb tubular hydroelectric generators, in particular to an early warning, monitoring and protection system for bearing bush burnout of bulb tubular units. 【Background technique】 [0002] At present, the bulb tubular hydroelectric generator set is widely used in low-head hydropower plants in my country due to its large unit flow and high unit efficiency. However, its auxiliary equipment is more complicated than other types of units. This type of generator set is in operation in my country The time is relatively short, so far, there are no national standards and industry standards for its automatic control design, operation and maintenance, resulting in a high frequency of failures of this type of unit in my country's hydropower industry, especially due to the Improper monitoring and protection methods for bearing pad components lead to frequent bearing pad burnout accidents. Once a bearing pad bu...

AI Technical Summary

Problems solved by technology

[0002] At present, the bulb tubular hydroelectric generator set is widely used in low-head hydropower plants in my country due to its large unit flow and high unit efficiency. However, its auxiliary equipment is more complicated than other types of units. This type of generator set is in operation in my country The time is relatively short, so far, there are no national standards and industry standards for its automatic control design, operation and maintenance, resulting in a high frequency of failures of this type of unit in my country's hydropower industry, especially due to the Improper monitoring and protection methods for bearing pad components lead to frequent bearing pad burnout accidents. Once a bearing pad burnout accident occurs, the repair time of the unit will take a lot of time, causing huge economic losses to power generation companies. Bearing pad burnout accidents have become bulbs. Major accidents in hydroelectric power plants

Images