基于超声波流量计的HFETR二次水流量测量系统  

The Secondary Water Loop Measurement System Based on the Ultrasonic Flow Meter for HFETR

作　　者：徐兵[1] 杨先军[1] 蒋波[1] 王雷 江易蔚 徐宇 韩良文 Xu Bing;Yang Xianjun;Jiang Bo;Wang Lei;Jiang Yiwei;Xu Yu;Han Liangwen(Nuclear Power Institute of China,Chengdu,610005,China)

机构地区：[1]中国核动力研究设计院,成都610005

出　　处：《仪器仪表用户》2020年第7期74-76,71,共4页Instrumentation

摘　　要：高通量工程试验堆反应堆二次水回路流量测量在设计时采用孔板流量计进行测量,后期为响应国家节能环保要求,在保证系统运行安全的前提下,改为仅启动一台二次水主泵对运行期间二次侧冷却水管道进行供水。一台主泵供水导致二次水回路管道不满管,受测量原理限制,孔板流量计测量数据无法再准确反映出二次水管道内流量是否断流,给反应堆运行带来安全隐患。因此,在原管道上加装超声波流量测量系统。经测试,超声波流量计在不满管状态下依然能够测到稳定的二次水回路流量,表明基于超声波流量计的HFETR测量系统达到系统设计目的。Orifice flowmeter is used in the design of flow measurement of secondary water loop of high flux engineering test reactor. In the later stage, in response to the national requirements of energy conservation and environmental protection, only one secondary water main pump was started to supply water to the secondary side cooling water pipeline during operation on the premise of ensuring the safety of the system. The water supply from one main pump causes the secondary water loop pipe to be dissatisfied with the pipe. Due to the limitation of the measurement principle, the measured data of orifice flowmeter can no longer accurately reflect whether the flow in the secondary water pipe is broken, which brings safety risks to the operation of the reactor. Therefore, an ultrasonic flow measurement system was installed on the original pipeline. After testing, the ultrasonic flow meter was able to measure the steady flow rate of the secondary water loop even when the pipe was not satisfied, indicating that the HFETR measurement system based on the ultrasonic flow meter could achieve the system design purpose.

关 键 词：HFETR 孔板流量计 超声波流量计 

分 类 号：TK313[动力工程及工程热物理—热能工程]