Thermal power plant generator stator cooling water system and start-stop control method thereof

Abstract

The invention provides a thermal power plant generator stator cooling water system and a start-stop control method thereof. The system comprises a stator cooling water tank, a first stator cooling water pump, a second stator cooling water pump, a first cooler, a second cooler, a stator cooling water temperature control valve, a stator cooling water flow adjustment valve, a stator cooling water supply screen, a water supply screen bypass electric door, an ion exchanger, an ion exchange water replenishing electric door, an ion exchange water replenishing screen, a water replenishing screen bypass electric door, a stator cooling water tank water replenishing electric door, a stator cooling water tank water replenishing adjustment valve, a stator cooling water tank water replenishing bypass electric door and an anti-siphon electric door. In a total stator cooling water system stop state, automatic start of the stator cooling water system can be realized; in a stator cooling water system operation state, automatic stop of the stator cooling water system is realized; and human judgment is considered, jump operation of the system program control logic can be realized.

Description

technical field [0001] The invention relates to a stator cooling technology of a thermal power generator, in particular to a thermal power generator stator cooling water system and a start-stop control method thereof. Background technique [0002] The main function of the generator stator cooling water system in a thermal power plant is to ensure that the cooling water flows through the stator coil uninterruptedly, so as to take away the heat caused by the loss of the generator stator coil, so as to ensure that the temperature rise of the stator coil meets the operating requirements of the generator. Relevant requirements. However, the existing thermal power generator stator cooling water system cannot automatically start the stator cooling water system when it is fully stopped; it cannot also automatically stop the stator cooling water system when the stator cooling water system is running; and when When the start-up procedure of the stator cooling water system reaches a c...

AI Technical Summary

Problems solved by technology

However, the existing thermal power generator stator cooling water system cannot automatically start the stator cooling water system when it is fully stopped; it cannot also automatically stop the stator cooling water system when the stator cooling water system is running; and when When the start-up procedure of the stator cooling water system reaches a certain step, if the condition of the step is not met, the start-up procedure cannot continue to run

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