Mechanical ventilation indirect air cooling system control method and system

Abstract

The invention provides a mechanical ventilation indirect air cooling system control method and system. The method comprises the following steps: collecting equipment state parameters in a mechanical ventilation indirect air cooling system and an environment temperature; receiving control instruction information input by a user; and according to the collected equipment state parameters and environment temperature, controlling start-stop of the mechanical ventilation indirect air cooling system by means of a DCS according to the received control instruction information. According to the provided mechanical ventilation indirect air cooling system control method and system, one-key start-stop control logic is set up based on the DCS, the labor amount of operators is greatly reduced, the error rate of manual operation of the operators is reduced, the system start-stop operation time is shortened, the peak regulation and frequency modulation capacity of a unit is improved, and the profit rate of an enterprise is increased; and by designing the start-stop logic of the DCS mechanical ventilation indirect air cooling system, one-key completion by the operators is achieved, operation is simple and convenient, and the mechanical ventilation indirect air cooling system control method and system are safe and reliable.

Description

technical field [0001] The invention relates to control technology, specifically a control method and system for a mechanical ventilation indirect air cooling system. Background technique [0002] In the thermal power generation unit, the mechanical ventilation indirect air cooling system is an important equipment for cooling the circulating water of the auxiliary machine. At present, for many supercritical and ultra-supercritical units in China, it is often necessary for power plant operators to manually control the mechanical ventilation indirect air cooling system to continuously cool the circulating water of auxiliary machines. This is not only time-consuming and laborious, but also often leads to The operating equipment tripped, causing abnormal shutdown of the unit, and causing heavy economic losses to the power generation company. [0003] At the same time, in the prior art, the mechanical ventilation indirect air cooling system of a thermal power plant needs to be p...

AI Technical Summary

Problems solved by technology

At present, for many supercritical and ultra-supercritical units in China, it is often necessary for power plant operators to manually control the mechanical ventilation indirect air cooling system to continuously cool the circulating water of auxiliary machines. This is not only time-consuming and laborious, but also often leads to The operating equipment tripped, resulting in abnormal shutdown of the unit, causing major economic losses to the power generation company

[0003] At the same time, in the prior art, the mechanical ventilation indirect air cooling system of a thermal power plant needs to be manually operated by the operator to put it into operation or remove it.

Power plant operators start and stop the power ventilation indirect air cooling system for a long time to run or cut it off. The workload is relatively large, and a large number of equipment is operated in a short time, which is likely to cause operational errors and cause serious damage to people or equipment.

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