超低温血浆速冻箱性能实验研究  

Experimental study on low temperature blood rapid frozen box

作　　者：王功亮[1] 孙志高[1] 赵之贵[1] 焦丽君[1] 黄丰波 

机构地区：[1]苏州科技学院环境科学与工程学院,苏州215009 [2]昆山-恒仪器有限公司,昆山215343

出　　处：《低温与超导》2014年第7期25-27,共3页Cryogenics and Superconductivity

基　　金：江苏省自然科学基金项目(BK2012602)资助

摘　　要：选择R404A、R23作为超低温血浆速冻箱复叠制冷系统高、低温制冷循环的制冷剂,设计并建造了速冻箱实验系统,研究了速冻箱的性能。实验结果表明,系统高温级制冷循环启动后约0.5h速冻箱内温度下降到-70℃,温度波动度小于0.5℃,高、低温级制冷压缩机的压比分别为10.8和5.6,吸排气压力稳定,说明速冻箱的设计达到了要求。R404A and R23 were chosen as the refrigerants of the cascade refrigeration system of blood rapid frozen box. A set of refrigeration unit for the rapid frozen box was designed and tested. The experimental results show that the temperature of the frozen box reaches -70℃ after the refrigeration system of high temperature refrigeration cycle works about 0.5h. The fluctuating temperature is less than 0.5℃. The pressure ratio of suction, exhaust pressure of high temperature part and low temperature part of the compressor were 10.8 and 5.6, respectively. The results also show that the unit works stably and the design of rapid frozen box is successful.

关 键 词：R404A R23 复叠制冷 低温血浆速冻箱 

分 类 号：TB661[一般工业技术—制冷工程]