中国先进研究堆低温管路冷损模拟试验研究

SIMULATION TEST STUDY ON THE COLD LOSS FOR A NEW TYPE OF LOW TEMPERATURE DEWAR PIPE OF CARR

对CARR中CNS系统使用的低温氦气管路的冷损进行了模拟试验研究 ,采用热平衡法确定了低温管路的最大可能冷损值 ,给制冷系统设计提供了可靠的数据支持。结合试验结果 ,分析了冷损产生途径 ,提出了减小冷损的办法。

A simulation test is studied on the cold loss of a new type of adiabatic pipe, w hich is applied in the Cold Neutron System (CNS) of China Advanced Research Reac tor (CARR). The method of heat balance is adopted to gain the most probable cold loss of the pipe.The reliable data for the design of the refrigeration system a re provided.According to the results of the test, the approach of the cold loss is analyzed and the method to reduce the cold loss is put forward.