Multi-coke-oven gas-colluection-pipe pressure control apparatus and method

Abstract

This invention has publicized a more coke oven gathering of gas pipe pressure control device. It comprises the pressure gathering unit which is used to gather various collecting pipes' value of pressure, the reed valve opening detecting element which is used to examine various collecting pipes' reed valve's opening, the reed valve regulating unit which is used to adjust collecting pipe's reed valve's opening, the first control unit which is used to gathering unit gather value of pressure with the controlled variable which establishes in advance determining that the first opening adjustment quantity according to the pressure. This first opening adjustment quantity with the decoupling coefficient product determination which establishes in advance for the second opening adjustment quantity, the union current reed valve's opening, controls states the reed valve regulating unit with to state the second opening adjustment quantity according to this first opening adjustment quantity the superimposition result to make the adjustment to the reed valve. At the same time, this invention has also publicized a coke oven gathering of gas pipe pressure control method. Using this invention may reduce the pressure perturbation between various collecting pipes' effectively.

Description

technical field [0001] The invention relates to the field of automatic control, and more specifically relates to a method and device for controlling gas collecting pipes of multiple coke ovens. Background technique [0002] The role of the coke oven gas collection pipe is to collect the gas exported from each carbonization chamber, and recover it through the fan after cooling. The gas collector pressure is an important control index that affects coke quality, gas production and coke oven life. If the pressure of the air collecting pipe is too low, the carbonization chamber will inhale air and cause coke to burn, which will affect the life of the furnace body, reduce the quality of coke, and even endanger the safe operation of the blower in serious cases; if the pressure is too high, the coke oven will cause smoke and fire, which will pollute the environment A large amount of energy is wasted again, and catching fire can reduce the heating intensity of the furnace column, sh...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a multi-coke oven collector pressure control device, which solves the problem of When adjusting the butterfly valve of a certain air collecting pipe, it has a great influence on the pressure of other air collecting pipes

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