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Research of Air Distribution Mode on 300MW Coal-fired Boiler

Author: WangQingFeng
Tutor: LiuDingPingï¼›YuanZhou
School: South China University of Technology
Course: Power Engineering
Keywords: Boiler Primary air Optimization Combustion Least squares support vector machine Genetic Algorithms
CLC: TK227.1
Type: Master's thesis
Year: 2010
Downloads: 87
Quote: 2
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Abstract


With the continued economic and social development , the requirements of the degree of automation of the control system of thermal power enterprises is also increasing . Energy efficiency has become an important direction of the thermal power enterprise reform , just security , stable production can no longer meet the needs of power generation companies . However, many domestic thermal power plant boiler operating conditions and the initial design conditions relatively large differences in the actual operating conditions complicated and volatile , relying solely on traditional operating procedures and means of control , can no longer meet modern power plant on production cost control requirements . In this paper, for the study of a 300MW coal-fired boiler , by site adjustment test , boiler load a secondary air ratio change of power station boiler operation economy in the case of other combustion conditions remain unchanged primary air pressure change on the size of the Unburned Carbon study . 300MW coal - fired boiler unit time changes in air pressure and the combustion efficiency of the boiler . Due to the huge power station boiler equipment , process variables , large delay, nonlinear , furnace pulverized coal combustion process is extremely complex , difficult mechanism method to establish the combustion model . In this paper, the actual operating data of the boiler using artificial intelligence techniques ( least squares support vector machine) nonlinear dynamical characteristics and self-learning function , the establishment of the optimization of combustion adjustment model and genetic algorithm optimization for different conditions under utility boilers wind pressure , burning oxygen content and burnout throttle opening adjustment parameters to guide the adjustment of boiler combustion , can improve combustion economy .

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CLC: > Industrial Technology > Energy and Power Engineering > Steam Power Engineering > Steam boiler > Run > Combustion and adjustments
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