新型换热器水力实验研究  

Hydraulic Experimental Research of New Type Heat Exchanger

作　　者：王盛[1] 肖泽军[1] 胡俊[1] 黄兆庆[1] 李华奇[1] 

机构地区：[1]中国核动力研究设计院空泡物理和自然循环国家级重点实验室,成都610041

出　　处：《核动力工程》2006年第z1期99-101,106,共4页Nuclear Power Engineering

摘　　要：所研究的新型换热器由5个单元组成。传热管为套管式结构,外管为钛管,外表面均布4条螺旋状肋;内管为呈螺旋状的钛管;传热管之间呈正三角形紧密排列。新型换热器水力实验采用单项实验与整体水力实验相结合的技术路线,利用单项实验模拟各种通道,由标定得出流量与压降的关系。整体水力模拟体比例为1∶1,并对局部进行了简化:用不锈钢直管代替螺旋状的传热管内管;在典型位置传热管上布置了内管静压测管和外管外全压测管。第一阶段为带堵塞棒的实验,第二阶段为不带堵塞棒的实验。通过实验,确定了新型换热器一次侧的流量分配和各部分阻力系数,实验数据已用于新型换热器设计改进。New type heat exchanger consists of five cell subassemblies. Hydraulic experiment of new type heat exchanger is divided into two parts: separated effect experiments and integral hydraulic simulation experiments. The separated effect experiments simulate four kinds of passages, from which the correlations of pressure drop is obtained. Simulation scale of integral hydraulic simulation model is 1:1, and some components is simplified. By the experiments, flow rate distribution of the primary side and resistance coefficients of the different components are determined. All data obtained have been used to improve the design of new type heat exchanger.

关 键 词：新型换热器 单项实验 整体水力实验 

分 类 号：TL353.13[核科学技术—核技术及应用]