600 MW机组冷却塔优化改造后热力性能分析
|
摘要
冷却塔作为火电厂热力循环中最主要的冷端设备之一,与电厂经济运行有着密切的关系,但其节能问题往往被忽视。以某600 MW机组双曲线逆流式自然通风冷却塔为研究对象,对冷却塔的淋水填料和喷溅装置优化改造后进行了热力性能试验,并对其冷却能力进行计算,同时,将改造后的淋水填料特性和喷头优化性能进行分析,指出冷却塔冷却能力得到提升的原因,为电厂在今后的冷却塔运行优化和节能改造提供了依据。
As one of the most important cold-end equipments in the thermal cycle of thermal power plants, cooling tower has a close relationship with the economic operation of power plants, but their energy-saving problems are often neglected. Taking a 600 MW unit hyperbolic counter flow natural ventilation cooling tower as the research object, the thermal performance test was carried out after optimizing the watering filler and splashing device of the cooling tower, and the cooling capacity was calculated. The characteristics of the water-filling filler and the optimization performance of the nozzle were analyzed, and the reason why the cooling capacity of the cooling tower was improved was pointed out, which provided a basis for the power plant to optimize the cooling tower operation and energy saving transformation in the future.
As one of the most important cold-end equipments in the thermal cycle of thermal power plants, cooling tower has a close relationship with the economic operation of power plants, but their energy-saving problems are often neglected. Taking a 600 MW unit hyperbolic counter flow natural ventilation cooling tower as the research object, the thermal performance test was carried out after optimizing the watering filler and splashing device of the cooling tower, and the cooling capacity was calculated. The characteristics of the water-filling filler and the optimization performance of the nozzle were analyzed, and the reason why the cooling capacity of the cooling tower was improved was pointed out, which provided a basis for the power plant to optimize the cooling tower operation and energy saving transformation in the future.
引文
[1]李秀云,林万超.冷却塔的节能潜力分析[J].中国电力,1997,30(10):34-36.
[2]赵振国.冷却塔[M].北京:中国水利水电出版社,2001.
[3]王宏国,孙奉仲,戴振会,等.300 MW机组冷却塔进风优化改造前后的性能评价[J].汽轮机技术,2009,51(4):279-281.
[4]徐跃芹,屠珊,黄文江,等.火电厂自然通风冷却塔性能研究[J].汽轮机技术,2005,47(5):357-359.
[5]潘雯瑞.火电厂循环水冷却塔内部流动对冷却效率的影响[D].上海:上海电力学院,2010.
[6]王明勇,栾俊,刘江.冷却塔填料布置方式对热力性能的影响[J].热力发电,2018,47(3):82-87.
[2]赵振国.冷却塔[M].北京:中国水利水电出版社,2001.
[3]王宏国,孙奉仲,戴振会,等.300 MW机组冷却塔进风优化改造前后的性能评价[J].汽轮机技术,2009,51(4):279-281.
[4]徐跃芹,屠珊,黄文江,等.火电厂自然通风冷却塔性能研究[J].汽轮机技术,2005,47(5):357-359.
[5]潘雯瑞.火电厂循环水冷却塔内部流动对冷却效率的影响[D].上海:上海电力学院,2010.
[6]王明勇,栾俊,刘江.冷却塔填料布置方式对热力性能的影响[J].热力发电,2018,47(3):82-87.