现役350MW机组无除氧器系统改造的水泵性能计算  

The Pump Performance Calculation for the System Energy-Saving Reconstruction Without Deaerator of 350 MW Unit in Active Service

作　　者：高岩[1] 栾涛[2] 张翠华 

机构地区：[1]国家电投山东电力工程咨询院有限公司发电厂节能减排工程实验室,山东济南250013 [2]山东大学发电厂节能减排工程实验室,山东济南250061

出　　处：《山东电力技术》2017年第7期48-51,57,共5页Shandong Electric Power

摘　　要：无除氧器热力系统在国内外已有工程应用,技术可靠并可取得一定经济效益。电厂进行无除氧器热力系统节能改造后,凝结水泵和给水泵的工作条件将发生变化,无除氧器热力系统工作的可靠性在很大程度上取决于水泵的正确选择。对现役典型350 MW机组提出无除氧器系统改造方案,其系统结构简单、改造工作量小、改造费用低,运行方便、安全可靠,并对一级凝结水泵、二级凝结水泵、给水泵和低加疏水泵等的性能参数进行了分析研究,为工程中对各水泵的计算选型提供了理论依据与工程参考。The application of the none-deaerator thermal system has been carried out domestically and abroad.This system is technically reliable and can obtain certain economic benefits.After the reconstruction of the power plant thermal system to apply the none-deaerator technology,the working conditions of the condensation pump and water-feeding pump of the boiler will change.The reliability of the thermal system without a deaerator largely depends on the choice of the water pumps.A thermal system energy-saving reconstruction for a typical 350 MW unit in active is proposed.Benefits such as simpler system structure,the lower reconstruction cost,less reconstruction work,convenient operation,higher safety and reliable would be obtained by using the plan proposed.The performance and parameters of the first condensate pump,secondary condensate pump,boiler feed water pump and low pressure drain pump were analyzed,providing theory basis and engineering reference for the pump selection.

关 键 词：无除氧器 系统改造 水泵 性能计算 现役机组 

分 类 号：TM621[电气工程—电力系统及自动化]