The DC emergency lube oil pump 125LY23-4 of the steam turbine is a lubricating oil pump used in emergency, mainly used for supplying stable oil to the governing system and bearing bush of the steam turbine.

Lubricating oil pump 125LY23-4 uses DC power supply, which is different from AC lubricating oil pump. The pump can be powered by UPS when the turning gear is shut down or the auxiliary power is completely shut down to ensure normal operation in case of emergency. Ensure that the governing system and bearing bush of the steam turbine can also be supplied with stable lubricating oil in case of emergency. This is essential for maintaining safe operation of the turbine.

DC emergency oil pump 125LY23-4 has a very high importance in the steam turbine system, mainly reflected in the following aspects:

• Ensure safe operation of the steam turbine: in case of emergency, the DC emergency oil pump can provide stable lubricating oil supply for the governing system and bearing bush of the steam turbine in time. This plays an important role in preventing bush wear, bush temperature rise and other lubrication system failures.
• Improve system reliability: As a standby lubricating oil pump, DC emergency oil pump can be kept in standby state during normal operation of AC lubricating oil pump, so as to ensure that it can be put into use immediately in case of AC lubricating oil pump failure and reduce system failure rate.
• Strong adaptability: DC emergency oil pump adopts DC power supply, with strong adaptability. When the auxiliary power is completely shut down, the DC emergency oil pump can be powered by the uninterruptible power supply (UPS), so that it can still operate normally under special circumstances.
• Easy maintenance: the DC emergency oil pump is relatively simple in structure and easy to maintain. Regular maintenance and test can ensure that the oil pump can be reliably put into use in emergency.
• It can be seen that the DC emergency oil pump 125LY23-4 is of great importance in the steam turbine system, playing a key role in ensuring safe operation of the steam turbine, improving system reliability, adapting to special environment and meeting industry standards. Therefore, high attention shall be paid to the selection, installation and maintenance of DC emergency oil pump in steam turbine engineering.

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