Vacuum pumping running maintaining system of newly-built power plant condenser and running method of vacuum pumping running maintaining system

Abstract

The invention discloses a vacuum pumping running maintaining system of a newly-built power plant condenser and a running method of the vacuum pumping running maintaining system. The running maintaining system comprises a plurality of vacuum pump subsystems which are arranged in parallel and communicate with the air outlet end of the power plant condenser through an air inlet pipeline. An air inlet hand valve, an air inlet rapid closing pneumatic valve and a dry type screw vacuum pump, all of which are connected through a pipeline are arranged in each vacuum pump subsystem, wherein the controlled end of the dry type screw vacuum pump and the controlled end of the air inlet rapid closing pneumatic valve are connected with a control device, and the air outlet end of the screw vacuum pump is connected with an air outlet pipeline. According to the vacuum pumping running maintaining system, the character that the dry type screw vacuum pumps can run in a speed adjusting manner is utilized, in the initial stage of running of the vacuum pumping running maintaining system of the power plant condenser, unit vacuum can be rapidly established with the high pumping speed, and meanwhile when a unit runs normally, the vacuum of the unit is maintained with low power and energy consumption, and the problems that a condenser vacuum pumping running maintaining system in a traditional power plant is high in energy consumption and large in occupied area, and equipment resources are wasted are solved.

Description

technical field [0001] The invention relates to the technical field of vacuum pumping operation of condensers in power plants, in particular to a vacuum pumping operation system and an operating method for condensers in newly built power plants. Background technique [0002] The condenser vacuum pumping system of a power plant is generally equipped with two relatively high-power vacuum pump sets, which have two main functions: first, they are turned on at the same time when the unit is started, and are used to quickly clean the condenser and its connection. Each pipeline system is vacuumed; the second is that after the power plant generator set is put into stable operation, one vacuum pump set is running, and the other is interlocked for standby. The running vacuum pump set is used to continuously pump out the non-condensable gas leaked into the vacuum system , to maintain the vacuum of the condenser system, and stop running after the generator set is completely shut down. ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a new power plant condenser vacuum operation maintenance system and its operation method to overcome the high energy consumption, waste of equipment resources, Problems such as large area

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