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水轮机利用循环水泵的富余扬程带动风机运转,以取代风机电机,实现节能的目的。以高效反击混流式水轮机在青岛石化循环水冷却塔中的应用为例,通过监测单开水轮机风机或电动风机时循环水的温降程度,来对比两种风机的运行效果,并在维持系统管网压力、流量不变的条件下,监测水轮机风机正常运行、转速减半、停运至系统稳定,以及重开风机系统、恢复稳定状态下的运行数据,测试水轮机风机运行对循环水系统的影响,从而验证水轮机节能技术的应用效果及经济效益。结果证明,循环水系统存在富余能量,水轮机利用该富裕能量带动风机运转,不增加循环水系统新的能耗;且水轮机风机降温效果与电动风机相当,可替代电机风机运行,满足精细化操作需要。采用水轮机运转风机,可优化循环水系统配置,减少维护保养费用,经济效益较高,具有较好的推广价值。
Turbine use of circulating pump surplus head drive fan operation to replace the fan motor, to achieve energy-saving purposes. Taking the application of Francis turbine in Qingdao Petrochemical circulating water cooling tower as an example, by comparing the temperature drop of circulating water in single open turbine or electric fan, the operation results of two kinds of fans are contrasted. Under normal pressure and flow conditions, the turbine turbines should be monitored for normal operation, half speed reduction, shutdown to system stability, re-opening of the fan system and recovery of steady-state operating data to test the effect of turbine operation on the circulating water system , Thus verifying the application effect and economic benefit of energy-saving technology of turbine. The results show that there is surplus energy in the circulating water system, and the turbine can use the rich energy to drive the fan to run without increasing the new energy consumption of the circulating water system; and the cooling effect of the turbine is similar to that of the electric fan, which can replace the operation of the fan, . The use of turbine running fan, circulating water system can optimize the configuration, reduce maintenance costs, higher economic efficiency, with good promotional value.