快堆二回路钠泵叶轮与导叶叶片数设计探讨

兰州理工大学学报 ›› 2020, Vol. 46 ›› Issue (2): 55-61.

快堆二回路钠泵叶轮与导叶叶片数设计探讨

杨从新^1,2, 侯凯文^1,2, 于洪昌³, 牛红军³

1.兰州理工大学能源与动力工程学院, 甘肃兰州 730050;
2.兰州理工大学甘肃省流体机械及系统重点实验室, 甘肃兰州 730050;
3.沈阳鼓风机集团核电公司, 辽宁沈阳 110020

收稿日期:2018-03-09 出版日期:2020-04-28 发布日期:2020-06-23
作者简介:杨从新(1964-),男,陕西兴平人,博士,教授,博导.
基金资助:
国家重大专项(600-CFR-1498)

Design exploration of blade number of impeller and guide vane of sodium pump in secondary circuit of fast reactor

YANG Cong-xin^1,2, HOU Kai-wen^1,2, YU Hong-chang³, NIU Hong-jun³

1. College of Energy and Power Engineering, Lanzhou Univ. of Tech. , Lanzhou 730050, China;
2. Key Laboratory of Fluid Machinery and System of Gansu Province,Lanzhou Univ. of Tech. , Lanzhou 730050, China;
3. Nuclear power Company, Shenyang Blower Works Group Corporation, Shenyang 110020, China

Received:2018-03-09 Online:2020-04-28 Published:2020-06-23

摘要/Abstract

摘要： 快堆二回路钠泵是目前世界上最先进的第四代核电核心装备之一,在保证安全运行的条件下提升其运行效率至关重要.基于其原型样机的性能要求和限制尺寸,采用一元设计与CFD相结合的方式进行钠泵叶轮和导叶的水力设计并且探究钠泵叶轮叶片数与导叶叶片数的匹配规律.结果表明:只改变导叶叶片数时,不同的导叶叶片数对钠泵效率和扬程影响的最大差值分别为4.01 %和9.75%的设计参数.设计工况下钠泵叶轮与导叶叶片数的最佳匹配值为:叶轮叶片数为5、导叶叶片数为8,叶轮叶片数为6、导叶叶片数为9,叶轮叶片数为7、导叶叶片数为11,即导叶叶片数在叶轮叶片数的1.5倍附近时,泵的水力性能达到最优值.符合钠泵性能要求且水力性能最优的叶轮叶片数与导叶叶片数的匹配方案为:叶轮叶片数为6、导叶叶片数为11.

关键词: 离心泵, 半球形压水室, 快堆, 叶片数, 匹配

Abstract: The sodium pump in secondary circuit of fast reactor is one ofkey equipment of the most advanced fourth-generation nuclear power in the world at present. It is very important to improve pump efficiency under the conditions of safe operation. Hydraulic design of the pump was carried out bycombining one-dimensional design method with computional fluid dynamics(CFD) based on its performance requirements and dimensional limitation and the matching rules of the blade number of the pump impeller and guide vane were discussed. The results show that the maximum influences of blade number of guide vane on its efficiency and head are 4.01% and 9.75% of their designing values, respectively, when the blade number of the impeller is kept constant. The optimal matching ratio of the blade number of impeller and guide vane for each other under designing condition is 5∶8, or 6∶9, or 7∶11, namely, the pump hydraulic performance reaches its optimal value when the matching ratio is about 1∶1.5. Nevertheless, the matching ratio of blade number of impeller and guide vane is at 6∶11, the sodium pump gets the best hydraulic performance.

Key words: centrifugal pump, hemispherical pressure chamber, fast reactor, blade number, matching

中图分类号:

TH311

杨从新, 侯凯文, 于洪昌, 牛红军. 快堆二回路钠泵叶轮与导叶叶片数设计探讨[J]. 兰州理工大学学报, 2020, 46(2): 55-61.

YANG Cong-xin, HOU Kai-wen, YU Hong-chang, NIU Hong-jun. Design exploration of blade number of impeller and guide vane of sodium pump in secondary circuit of fast reactor[J]. Journal of Lanzhou University of Technology, 2020, 46(2): 55-61.

参考文献

[1] 施卫东,吴苏青,张德胜,等.叶片数对高比转数轴流泵空化特性的影响 [J].农业机械学报,2013,44(11):72-77.
[2] 李景悦,罗丽.叶轮叶片数与核主泵叶片反击系数的关系 [J].水电能源科学,2016(5):180-183.
[3] 钟兢军,王洪瑞,韩吉昂.混流喷水泵内流场及叶片数匹配数值研究 [J].船舶工程,2015(8):30-33.
[4] 张德胜,施卫东,王川,等.斜流泵叶轮和导叶叶片数对压力脉动的影响 [J].排灌机械工程学报,2012,30(2):167-170.
[5] 陈杰,黄国平,梁德旺,等.叶片数对微型斜流叶轮性能的影响 [J].航空动力学报,2008,23(9):1707-1712.
[6] CHAKRABORTY S.Numerical studies on effects of blade number variations on performance of centrifugal pumps [J].Journal of Environmental Research & Development,2012,6(3A):863-868.
[7] 付燕霞,袁寿其,袁建平,等.叶片数对离心泵小流量工况空化特性的影响 [J].农业机械学报,2015,46(4):21-27.
[8] 杨从新,贾程莉,程效锐,等.导叶周向布置位置对核主泵性能的影响 [J].兰州理工大学学报,2015,41(5):54-58.
[9] 程效锐,贾程莉,杨从新,等.导叶周向布置位置对核主泵压力脉动的影响 [J].机械工程学报,2016,52(16):197-204.
[10] 付强,邢树兵,朱荣生,等.核主泵叶轮叶片进口边位置对气液两相流动特性的影响 [J].核动力工程,2016(3):87-93.
[11] 杨从新,齐亚楠,黎义斌,等.核主泵叶轮与导叶叶片数匹配规律的数值优化 [J].机械工程学报,2015,51(15):53-60.
[12] 周方明,徐胜利,王晓放,等.CAP1400屏蔽电机主泵高效水力模型研发 [J].机械工程学报,2018,54(7):176-183.
[13] 范谊章,左志钢,刘树红,等.锅炉循环泵的泵壳改型与应力安全分析 [J].排灌机械工程学报,2013,31(4):289-293.
[14] 关醒凡.现代泵理论与设计 [M].北京:中国宇航出版社,2011.
[15] 王福军.计算流体动力学分析.CFD软件原理与应用 [M].北京:清华大学出版社,2011.