Regenerative gas heating furnace control system

Abstract

The invention relates to a regenerative gas heating furnace control system comprising a PLC (programmable logic controller), a man-machine interface touch screen, a temperature control meter, a temperature sensor, a pressure sensor, an electromagnetic reversing valve, an ignition coil, an ion flame detector and an alarm; the functions of the control system include blowing and sweeping control, ignition control, reversing control, temperature control and alarm control which can be regulated and controlled by the man-machine interface touch screen through the PLC. The system is high in automation level and accurate and stable to operate timely, the heating furnace can be operated more safely by arranging the alarm control, the actions of the mechanisms are controlled through the PLC, the usage of electric elements is reduced, the design of the internal structure of the control system can be simplified, workload of design is reduced, the layout is attractive, wiring and maintaining are easy, and the using effect of the system and heating quality of products are improved greatly.

Description

technical field [0001] The invention relates to the technical field of heating furnace control, in particular to a regenerative gas heating furnace control system. Background technique [0002] With the unrestrained demands of human beings for oil, coal, natural gas and other resources, the energy crisis has become more and more serious. Therefore, the development of new energy and energy conservation have become the main theme of the development of the world today. It is obvious that the iron and steel metallurgy industry is the main group of energy consumption. Among them, the smelting heating furnace consumes the most energy, but the power of the heating furnace is not high now, not only the fuel utilization rate is low, a large part of waste heat is wasted, but also a large amount of NOx that pollutes the environment is produced. Therefore, the reform and innovation of heating furnace is the top priority of energy saving in today's iron and steel smelting industry. As ...

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Problems solved by technology

[0003] At present, the regenerative heating furnace has great advantages in saving energy, increasing production, and improving heating quality, etc., but the regenerative heating technology is not very mature, the general energy consumption of the combustion process is high, the environment is polluted, and the temperature control accuracy is poor. , low degree of automation, etc., and the labor intensity of operators is high

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