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Study on the configuration and structure of higher-capacity flux-concentration type electromagnetic pump

大容量通量集中式电磁泵的配置与结构研究

基本信息

批准号：
07555089
负责人：
YAMADA Sotoshi
金额：
$ 1.47万
依托单位：
Kanazawa University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

项目摘要

The purpose of the research project is to analyze numerically the characteristics of the flux concentration type electromagnetic pump (EMP) proposed by us and examined the performances of the simulation model as the sodium pump in a fast breeder reactor.1.Design of a flux concentration type electromagnetic pump with double-excitation structureFor EMP with higher capacity, we proposed a new flux-concentration type EMP that has the double excitation structure. In design, we discussed the the heat radiation, coil connection, duct shape for liquid metal, hydro-dynamic resistance, and framework in structure.2.Fundamental characteristics test by using U-alloy as liquid metalThe experimental results by using U-alloy with conductivity (s=2.31^<**>10^6) shows that the pressure is 1.2 times higher compared the conventional type. And we confirmed that the characteristic becomes effective for metal with higher conductivity as sodium.3.Analysis and investigation of in-sodium EMPWe can obtain the reasonable calculated results for in-sodium characteristics tests. The estimation based on the calculated results shows that the in-sodium testing EMP has 1.8 times pressure as high as the conventional one.4.In-Sodium characteristics testTo confirm the performace for sodium, the measurement was carried out in the circulating system for liquid sodium supported by the Power Reactor and Nuclear Fuel Development Corporation. The maximum flow rate and pump head were about 520 l/min, and about 2.6 kg/cm^2 respectively under the condition of 400V and 27A.The maximum efficiency of the pump was about 11 % and it was 2 times larger than that of conventional type small-size electromagnetic pumps.

本课题的研究目的是对我们提出的通量浓缩型电磁泵（EMP）的特性进行数值分析，并对其作为快中子增殖反应堆钠泵的仿真模型进行性能测试。针对更高容量的电磁脉冲，提出了一种具有双激励结构的新型电磁脉冲泵。在设计中，我们讨论了热辐射、盘管连接、液态金属风管形状、水动力阻力和结构框架。用u -合金作为液态金属进行基本特性试验，实验结果表明，电导率为（s=2.31^<**>10^6）的u -合金的压力比常规型高1.2倍。并证实了该特性对电导率较高的金属如钠是有效的。钠内电解液的分析与研究对钠内电解液的特性试验可以得到合理的计算结果。根据计算结果估计，钠内测试电磁脉冲的压力是常规电磁脉冲的1.8倍。为了确定钠的性能，在动力反应堆和核燃料开发公司支持的液钠循环系统中进行了测试。在400V和27A条件下，最大流量约为520 l/min，泵扬程约为2.6 kg/cm^2。该泵的最大效率约为11%，是传统小型电磁泵的2倍。