摘要
排烟温度偏高是国内电站锅炉普遍存在的问题,排烟温度较高时严重影响电厂的热经济性,因此,降低排烟温度对于节能降耗、提高锅炉的安全可高性具有重要的现实意义。通过煤粉炉改造实践和利用等效焓降法分析加装低压省煤器后的经济效益,结果表明低压省煤器系统不仅能降低锅炉机组排烟温度,而且能降低煤耗,提高锅炉的运行经济性,在电厂余热回收方面具有重要作用。
The over high exhaust smoke temperature（EST） is a universal problem for power station boilers at present.When the EST exceeds over the design value very much,it affects the thermal economic efficiency of power stations,and it has a great meaning to decrease the EST for saving the energy,promoting safety and reliability of boilers.Through modificatory of 130 t/h pulverized coal-fired boiler and analysed economic by equivalent enthalpy drop method in low pressure economizer it has been found that the low-press economizer not only decreases the EST,but also decreases the carbon-consumption,enhance the operation economy of boiler.It plays an important role in the remaining heat reclaiming in the power plant.
出处
《节能技术》
CAS
2012年第4期295-298,共4页
Energy Conservation Technology
关键词
排烟温度
低压省煤器
等效焓降法
节能
gas temperature
low-pressure economizer
equivalent enthalpy drop method
energy-saving
