要进行超导磁体或线圈的研究,必须设计和制造一个有效而可靠的制冷系统。这种系统应该可靠、氦的消耗少、热量传递良好。过去一般采用自然制冷系统,即把超导磁体或线圈直接浸在恒温器内的液氦中,然后从钢瓶或制冷机(或杜瓦)将低温氦输入恒温器内的循环系统(如图一),氦在回路中循环,带走超导 To conduct research on superconducting magnets or coils, an effective and reliable refrigeration system must be designed and manufactured. This system should be reliable, with less helium consumption and better heat transfer. In the past, a natural refrigeration system was generally used. That is, the superconducting magnet or coil was directly immersed in the liquid helium in the thermostat, and then the cryogenic helium was input into the circulatory system in the thermostat from the cylinder or the refrigerator (or Dewar) ), Helium circulating in the loop, take away the superconducting