煤粉与生物质混燃锅炉的过量空气系数调节方法与系统
By modifying the lowest nozzle of the burner to a biomass nozzle and combining it with simulation, the optimal excess air coefficient was determined, which solved the problems of incomplete combustion and high NOx emissions in the pulverized coal and biomass co-fired boiler, and achieved efficient boiler operation and low emissions.
CN117469690BActive Publication Date: 2026-07-17ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
- Filing Date
- 2023-10-27
- Publication Date
- 2026-07-17
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Figure CN117469690B_ABST
Abstract
本发明公开的煤粉与生物质混燃锅炉的过量空气系数调节方法与系统，包括：获取锅炉在煤粉与生物质混燃工况时，不同过量空气系数工况所需的空气总量；根据各过量空气系数工况所需的空气总量，确定各过量空气系数工况下燃烧器的一次风速、二次风速和燃尽风速；根据各过量空气系数工况下燃烧器的一次风速、二次风速和燃尽风速，对煤粉与生物质混燃锅炉进行煤粉与生物质混燃工况仿真模拟，获得各过量空气系数工况下的仿真模拟结果；根据各过量空气系数工况下的仿真模拟结果，确定最佳过量空气系数；根据最佳过量空气系数对煤粉与生物质混燃锅炉进行控制。确定了锅炉在煤粉与生物质混燃工况时的最佳过量空气系数，从而使煤粉与生物质充分燃烧，降低NOx排放浓度。
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