Oil shale circulating gas heating furnace control system

• Main Authors: LI YONGZE, WANG JUNPENG
• Format: Patent
• Language: English
• Published: 01.07.2015
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

An oil shale circulating gas heating furnace control system is a basic automatic and process control system composed of a server, a PC (Personal Computer) client machine and a redundancy PLC (Programmable Logic Controller); heated gas is explosive gas; the oil shale circulating gas heating furnace control system is characterized in that the control policy of the heating furnace control system is as follows: the temperature of a combustion chamber is used as a main controlled object and a gas flow is used as a secondary controlled object; the optimal air-fuel ratio K is determined through monitoring the temperature of the combustion chamber of a heating furnace and tracking the oxygen content of flue gas, so that the automatic control of the gas flow of the combustion system and an air flow specific value is realized; by the aid of the control system, the control problem of heating and circulating gas after a hot air furnace of a metallurgical industry is improved by a technology and then is transplanted to a petrochemical industry can be solved. The combustion control level is improved and the safe furnace change is guaranteed.