Operation control method and system for multiple cooling fans

Abstract

The invention discloses an operation control method and system for multiple cooling fans. The cooling fans on a site are grouped; a temperature sensor samples the temperature of an inlet of a bag deduster; the temperature of the inlet of the bag deduster is displayed in real time through a digital displayer, multi-path temperature warning values matched with the cooling fan groups in number are set in the digital displayer according to the sequence from the low temperature to the high temperature; whether the temperature of the inlet of the bag deduster exceeds the set temperature warning values or not is judged through a control device according to the sequence from the low temperature to the high temperature, when the temperature of the inlet of the bag deduster exceeds one temperature warning value, the control device controls the corresponding fan groups to run, when the temperature of the bag deduster drops to the corresponding temperature warning value, the fan groups controlled by the temperature warning values are stopped after 5-minute time delay, and then operation control over the fan groups is achieved by the control device. By the adoption of the operation control method and system, the smoke temperature of the inlet of the bag deduster is reasonably controlled, the kiln head bag deduster is effectively protected, and energy conservation and emission reduction are effectively achieved.

Description

technical field [0001] The invention belongs to the technical field of cooling fan control, and in particular relates to a safe, effective, economical and energy-saving operation control method and control system for multiple cooling fans. Background technique [0002] In the new dry process cement production process, the exhaust gas from the kiln cooler is cooled by multi-pipe cooling fans, so that the temperature of the flue gas is reduced to meet the operation needs of the bag filter, and then sent to the dust collector for dust collection. However, the multiple cooling fans used in conjunction with the bag filter may all be started when the system is started or need to be controlled by a single central control unit, and the redundant cooling fans cannot be automatically stopped when the flue gas temperature reaches the control temperature, requiring central control Manually controlling the shutdown of a single unit increases the operating burden and monitoring intensity ...

AI Technical Summary

Problems solved by technology

However, the multiple cooling fans used in conjunction with the bag filter may all be started when the system is started or need to be controlled by a single central control unit, and the redundant cooling fans cannot be automatically stopped when the flue gas temperature reaches the control temperature, requiring central control Manually controlling the shutdown of a single unit increases the operating burden and monitoring intensity of the central control operator, which poses operational safety hazards and consumes a lot of energy, which is not conducive to energy saving

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