| 摘要 |
PURPOSE:To obtain a refrigerant composition composed of n-pentane and a refrigerant free from a chlorine group, usable without causing the problem of ozonosphere destruction and effective for preventing the seizure of a compressor by returning a compressor oil with n-pentane having high compatibility with compressor oil. CONSTITUTION:This refrigerant composition free from ozonosphere destruction problem and useful for freezer, etc., can be produced by compounding a refrigerant free from a chlorine group (e.g. pentafluoroethane) with 0.1-14wt.% of n- pentane. The refrigerant composition is used in a freezer by ejecting a high- pressure hot gaseous mixture of the refrigerant from a compressor 1 of the freezer, introducing the mixture into a condenser 2 to release the heat, introducing the mixture into an evaporator 4 after reducing the pressure with a capillary tube 3, evaporating in the evaporator to exhibit the cooling performance and returning to the compressor 1. The seizure of the compressor can be prevented by the action of n-pentane having high compatibility with the compressor oil. |
