循环流化床节能降耗措施研究

Study on CFB Energy-saving Measures

通过分析影响循环流化床锅炉效率的主要因素,结合实践经验,提出了对中小循环流化床锅炉进一步节能降耗措施。一是设备改进。即通过改变炉顶对空排汽方式;改变冷渣器的选择类型;改变引风机调节方式;改进给煤破碎设备;改善管道、设备保温质量。二是调校元件。即通过定期更换检修疏水门和减温水门;定期床温准确度的测定;定期补水率的校核。三是参数优化。即通过调节锅炉床温;风量及含氧量;蒸汽质量;排烟温度;灰渣含碳量。结合上述措施,在实际运行过程中不断探索,同时减少和避免非正常停机,寻求锅炉的最佳运行方式,提高机组的整体运行效率,以达到节能减耗目的的同时,提高企业的经济效益和社会效益。

By analyzing the impact of circulating fluidized bed boiler efficiency of the main factors,combined with practical experience,made for small and medium circulating fluidized bed boiler for further energy saving measures. First, equipment improvements. That is to change the roof-to-air exhaust mode; change in the choice of type of Cold dregs, device; change the induced draft fan adjustment method; to improve coal crushing equipment; to improve the pipeline insulation and equipment insulation quality. Second, adjustment and checking components. Periodic replacement of maintenance steam trap and cooling water valves; Regular bed temperature accuracy checks; regularly checking the rate of replenishment. Third, parameter optimization, namely, by adjusting the boiler bed temperature; air volume and oxygen content; steam quality; exhaust temperature; ash carbon content; Combination of the above measures, in practice running continuously explore, At the same time to reduce and avoid non-normal downtime, to find the best way of The boiler operation, Improve the unit＇s overall operating efficiency. While achieving energy conservation subtraction consumes purpose, improve the enterprise economic returns and social benefits.