Configuration and Type Selection Optimization of Low-Pressure Drain Pump for Conventional Island of AP1000 Nuclear Power Plants

doi:10.11930/j.issn.1004-9649.2014.9.46.5

Abstract

Abstract: Different configuration schemes of the low-pressure (LP) drain pump of conventional island (CI) in nuclear power plants affect the reliability and economy of the LP heater drain system. In order to optimize the system performance, by analyzing the existing domestic codes and comparing the LP drain pump configuration schemes for the reactors of different types in China and aboard, the rationality of three-pump configuration is proposed from the economic aspect in consideration of the initial investment of the LP drain pump and its associated system and the operation cost. According to the preliminary selection result and the characteristic curve of the LP drain pump, through economic analysis, the flow and head of the LP drain pump are optimized and it is proposed that the flow of the LP drain pump should be selected according to the rated load condition. The optimization of the head selection reduces the operation cost.

Key words: nuclear power unit, AP1000, LP drain pump, configuration and type selection

CLC Number:

TK01+9

LI Qiang. Configuration and Type Selection Optimization of Low-Pressure Drain Pump for Conventional Island of AP1000 Nuclear Power Plants[J]. Electric Power, 2014, 47(9): 46-51.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.9.46.5

https://www.electricpower.com.cn/EN/Y2014/V47/I9/46

References

[1] 李璐江,王建. 低压加热器疏水系统改进及经济性分析[J]. 热力发电,2008,37（12）：62-64.
LI Lu-jiang, WANG Jian. Improvement for drain system for low- pressure heater and economic efficiency analysis[J]. Thermal Power Generation, 2008, 37(12): 62-64.
[2] 梁娜,张宗珩. 某600 MW机组低压加热器疏水系统优化[J]. 热力发电,2012,41（6）：8-10.
LIANG Na, ZHANG Zong-heng. Study on optimization of drain system for low pressure heater of the home-made 600 MW unit [J]. Thermal Power Generation, 2012, 41(6): 8-10.
[3] 卢基保,李岩峰,张彦. 大型火电机组低加热力系统分析[J]. 东北电力学院学报,1996,16（3）：100-104.
LU Ji-bao, LI Yan-feng, ZHANG Yan. Thermodynamic system analysis for low pressure heaters of large steam turbo generator sets[J]. Journal of Northeast China Institute of Electric Power Engineering, 1996, 16(3): 100-104.
[4] 马勇. 某超超临界600 MW机组增加低加疏水泵后等效热降计算[J]. 电站辅机,2012,33（1）：36-38.
MA Yong. Equivalent heat drop calculation of an ultra supercritical 600 MW unit after installing a drain pump of LP heater [J]. Power Station Auxiliary Equipment, 2012, 33(1): 36-38.
[5] 刘星桥. 变频调速在火电厂低压加热器疏水水位控制系统中的应用[J]. 中国电力,1999,32（9）：66-68.
LIU Xing-qiao. Application of frequency control of speed in drain water level control system of low pressure heater in thermal power plant [J]. Electric Power, 1999, 32(9): 66-68.
[6] 邹罗明. 百万超超临界机组低加疏水泵设置优化[J]. 科技信息,2012（29）：395-396.
[7] 中国电力工程顾问集团公司. GB 50660—2011 大中型火力发电厂设计规范[S]. 北京：中国计划出版社,2011.
[8] 中国电力建设工程咨询公司. DL 5000—2000 火力发电厂设计技术规程[S]. 北京：中国电力出版社,2000.
[9] 全国注册咨询工程师（投资）资格考试参考教材编写委员会. 项目决策分析与评价[M]. 北京：中国计划出版社,2011.
[10] 明赐东. 调节阀应用[M]. 北京：化学工业出版社,2009.