2.Crystal coffin has the function of preventing corpse decay, it looks simple structure, the actual process is rather complex, involves many technical field.

the crystal coffin, the refrigerant gasification under a certain evaporating temperature, shuijingguan from the cooling target. the refrigerant vapor of the cryogenic low re is pumped in time by the compressor. and condensed to the condensing pressure, into the condenser. the crystal coffin expend consumes power high temperature and high pressure. the refrigerant vapor is transferred to the environment cooling medium in the condenser, and first cooled and then condensed into a refrigerant liquid at room temperature.

4.the liquid passes through the w chengzhuang, the crystal coffin mostly becomes a low pressure liquid, a small part becomes a low pressure evaporating crystal guanqi, the two enter zhengtengqi, and the zhunda absorbs heat again, and then ends a steam contraction refrigeration cycle.