Distributed control system for coal mine ventilation air oxidation generator set

Abstract

The invention provides a distributed control system for a coal mine ventilation air oxidation generator set. The distributed control system comprises a data acquisition device, an automatic adjusting device, an auxiliary engine program control device and a boiler safety monitoring device. By the distributed control system, a boiler, a steam turbine generator unit and a ventilation air oxidation device are controlled in a centralized mode and are arranged in a control chamber, and by adoption of the centralized control mode, on the basis of a microprocessor, the problem that the distributed control chamber is difficult to manage and extremely high in maintenance cost is solved.

Description

technical field [0001] The invention relates to the field of power generation control, and more specifically relates to a decentralized control system for a coal mine exhaust air oxidation generator set. Background technique [0002] Gas is a combustible gas associated with the coal mining process, mainly air and CH 4 mixtures, there is a danger of explosion. CH in coal mine exhaust gas 4 Very low content, CH 4 The volume fraction is generally 0.10%-0.75%, which is usually called "deficiency wind". Although wind exhausts gas in CH 4 The content is extremely low, but the total amount is huge. 80% of the methane emitted by my country's coal mines is discharged through exhaust air. Since the methane content of the exhaust air is less than 0.75%, if it is separated and purified, the energy consumption will far exceed the extracted methane energy, and this concentration of methane cannot be directly burned, so it can only be emptied for a long time. [0003] Our country emi...

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Problems solved by technology

[0012] In order to solve the problem that the decentralized control room is not easy to manage and the maintenance cost is too high, the present invention provides a decentralized control system for coal mine exhaust air oxidation generator set. The decentralized control system includes a data acquisition device, an automatic adjustment device, and an auxiliary machine program control devices and boiler safety monitoring devices, in which:

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