DC emergency lubricating backup oil pump  125LY-32B is a backup oil pump that is driven by a DC motor to supply lubricating oil when the auxiliary power is lost or the main oil pump malfunctions, and the AC backup oil pump cannot be started.

 

During the production process of the power system, in extreme weather and various natural disasters, the safety production of the power system will be severely disrupted. The unit is disconnected from the system, the auxiliary power is interrupted, and the main steam valve of the turbine is closed, resulting in a decrease in speed. At this point, the main oil pump is unable to maintain the lubricating oil pressure of the turbine, and the AC auxiliary oil pump cannot be started due to the loss of AC power. It can only rely on the DC emergency oil pump to provide the lubricating oil pressure of the oil system, ensuring that the lubricating oil pressure of each bearing during the emergency shutdown of the turbine generator unit takes away the heat generated by bearing friction and the heat transmitted from the turbine rotor; Provide regulation and control of oil pressure to the turbine governing system and security system, ensuring the safety of the unit throughout the entire shutdown process, and providing safety assurance for the unit to restart. Therefore, the DC emergency oil pump plays an extremely important role and significance in the safe operation of the steam turbine, and is an important auxiliary equipment for the steam turbine generator set, requiring it to be kept in a good standby state at all times.

 

 

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DFYLSYC-2023-05-05-A