萨拉齐电厂300MW循环流化床锅炉机组耦合空气透平系统试验方案研究  

Feasibility Study on Test Schemes for Coupling Air Turbine System of Salaqi 300 MW CFB Boiler Unit

作　　者：王玉召[1] 李建锋[2] 

机构地区：[1]承德石油高等专科学校,承德067000 [2]中国电力企业联合会,北京100055

出　　处：《动力工程学报》2013年第5期381-386,共6页Journal of Chinese Society of Power Engineering

摘　　要：为了验证火力发电机组耦合空气透平系统降低厂用电率的可行性,制定了萨拉齐电厂300MW循环流化床锅炉机组耦合空气透平系统的3个试验方案,其中方案1、方案3不需要改造锅炉空气预热器,而方案2则需要改造锅炉空气预热器.对试验所用设备性能参数及价格进行调研,并对试验方案的热流分布进行了计算和对比.结果表明:在综合考虑3个试验方案的节能效果、试验成本以及对机组正常运行所可能带来的影响后,确定方案3为最佳方案,其与方案1相比,由于排烟温度较低,所以节能效果较好,与方案2相比,由于不改动空气预热器,所以对锅炉部分的改动较小,试验的风险较小.To reduce the service power rate of thermal power unit via coupling air turbine system, 3 test schemes were proposed for Salaqi 300 MW circulating fluidized bed （CFB） boiler unit, among which schemes 1 and 3 don^t need to retrofit the air heater, but scheme 2 does. Based on the survey to perform- ance parameters and price of relevant test facilities, the calculation of heat flux distribution in each scheme was carried out and a comparison was made among the schemes. Results show that by comprehensively considering the energy-saving effect, test cost and impact on normal operation of the unit, scheme 3 is re- garded as the best option among all the 3 schemes, of which the energy-saving effect is better than scheme 1 due to its lower exhaust gas temperature, and its test risk is lower than scheme 2 since it is not necessary to retrofit the air heater.

关 键 词：循环流化床锅炉 空气透平 厂用电率 节能 降耗 

分 类 号：TM611[电气工程—电力系统及自动化]