Generator lubricating oil system based on pneumatic pump and electric pumps and safety protection method

Abstract

The invention relates to a generator lubricating oil system based on a pneumatic pump and electric pumps and a safety protection method. The system comprises a generator lubricating oil tank, the electric lubricating oil pumps, the pneumatic lubricating oil pump, a distribution box and a control box; the input ends of the two electric lubricating oil pump and the pneumatic lubricating oil pump are connected with the generator lubricating oil tank, and the output ends of the two electric lubricating oil pump and the pneumatic lubricating oil pump are connected with a generator, and lubricating oil is provided for bearings at the front end and the rear end of the generator; and the two electric lubricating oil pumps and one pneumatic lubricating oil pump are used as backups for each other, so that the long-term reliable operation of the generator lubricating oil system is ensured. The generator lubricating oil system adopts a pneumatic mode and an electric mode to realize the supply of the lubricating oil of the generator; the two electric pumps and the pneumatic pump are used as backups for each other, so that long-term reliable operation of the lubricating oil system can be guaranteed; and the problem that the generator cannot be safely shut down or started due to interruption of peripheral power supply and the problem that the generator is forced to shut down due to interruption of peripheral power supply can be avoided.

Description

technical field [0001] The invention relates to a comprehensive security technology for a marine high-power diesel generator set, in particular to a generator lubricating oil system and a security protection method. Background technique [0002] The marine high-power generator adopts a sliding bearing structure. During the operation of the generator, the lubricating oil supply of the bearing is mainly realized by the peripheral auxiliary equipment. The electric lubricating oil pump can realize the lubricating oil supply, and provide a certain flow of lubricating oil for the bearings at the front and rear ends of the generator. . [0003] However, the stable operation of the electric lubricating oil pump is more dependent on the external power supply. When the whole ship loses power, the electric lubricating oil pump cannot supply oil normally, and the generator is shut down in an emergency or the generator is started in an emergency. Insufficient supply of lubricating oil w...

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Problems solved by technology

[0003] However, the stable operation of the electric lubricating oil pump is more dependent on the external power supply. When the whole ship loses power, the electric lubricating oil pump cannot supply oil normally, and the generator is shut down in an emergency or the generator is started in an emergency. Insufficient lubricating oil supply leads to abnormal wear of the bearing structure and shortens the service life, which is not conducive to the long-term safe operation of the generator

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