350MW机组循环水泵节能优化运行

发布时间：2018-02-11 07:22

本文关键词： 火电机组循环水泵节能优化　出处：《华北电力大学》2014年硕士论文　论文类型：学位论文

【摘要】：在我国,火力发电在能源结构中占据主导地位,传统的火电机组在节能方面潜力十分巨大,因此提高火电机组运行的经济性是实现我国节能减排目标的重要手段。循环水泵是个耗电大户,在单机多循环水泵运行、双速循环水泵运行以及多机组循环水泵并联运行的情况下,根据外部条件,平衡计算循环水泵耗功和真空提高的汽轮机功率增量,获得外部条件变化下的最经济的循环水流量,从而确定循环水泵的最优组合方式。本文以华能济宁电厂的350MW亚临界机组为研究对象,阐述了循环水系统管路特性及循环水泵特性、单背压凝汽器特性、冷却塔冷却模型等通用的基础理论,在这些理论基础上开发出了华能济宁电厂1号机组循环水泵优化启停计算程序,并通过程序计算得出了不同环境下的循环水泵最优运行方式,实现了机组的经济性目标。
[Abstract]:In China, thermal power plays a leading role in the energy structure, and traditional thermal power units have great potential in energy saving. Therefore, improving the operation economy of thermal power units is an important means to achieve the goal of energy saving and emission reduction in China. Under the condition of double-speed circulating pump operation and multi-unit circulating pump parallel operation, according to external conditions, the power consumption of circulating water pump and the increment of turbine power increased by vacuum are calculated in balance, and the most economical circulating water flow rate is obtained under the change of external conditions. In order to determine the optimal combination mode of circulating water pump, this paper takes 350 MW subcritical unit of Huaneng Jining Power Plant as the research object, expounds the characteristics of circulating water system pipeline, circulating water pump and single back pressure condenser. Based on the general basic theories such as cooling tower cooling model and so on, the program of optimal start and stop calculation of circulating water pump of No. 1 unit of Huaneng Jining Power Plant has been developed. The optimal operation mode of circulating water pump in different environments is obtained by program calculation, and the economic goal of the unit is realized.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM621

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