Journal of System Simulation ›› 2017, Vol. 29 ›› Issue (10): 2528-2537.doi: 10.16182/j.issn1004731x.joss.201710037

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Dynamics Analysis of Flue Gas Compression System in Oxy-coal Fired Boiler

Gao Jianqiang, Zhang Chen   

  1. School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China
  • Received:2015-10-16 Published:2020-06-04
  • About author:Jia Panpan(1987-), Female, Henan Xihua, Master, Research direction of simulation technology; Zeng Yanyang(1987-), Male, Henan Gushi, Doctor, Lecturer, Research direction for the simulation method and application.

Abstract: Taking the flue gas compression system in a 300MW oxy-coal fired boiler unit as an object of study by concept design, math model of gas compressor and gas cooler were established with the method of lumped parameter, and dynamic simulation of flue gas compression system was developed. The disturbance experiments on coal-feeder speed and flue gas compressor speed, etc. were carried out based on B-MCR stable condition. As a result, the operating parameters of gas compressor have a more sensitive response and larger change magnitude when the perturbation of coal feeder speed and gas compressor speed is disturbed; when the opening of primary recirculating fan damper and water valve of flue gas cooler is disturbed, the gas compressor operating parameters change less, and the response is longer.

Key words: oxy-coal fired boiler, simulation model, flue gas compression system, dynamic characteristics

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