| 摘要 |
A non-azeotropic refrigerant composition which can be used in refrigerators originally designed to use a Freon refrigerant without the need of changing the specifications thereof and which is harmless to men and environment. The refrigerant composition consists essentially of nitrogen, water, a freezing-point depressant (NaCl), a phosphate, and a polyhydric alcohol. In production, a stirring tank (1) is evacuated to produce a vacuum therein. Sodium chloride and pure water are mixed together to prepare an aqueous sodium chloride solution. Further, trisodium phosphate is dissolved in the aqueous solution to prepare an aqueous sodium chloride and trisodium phosphate solution, which is then stored in a tank (20). The aqueous sodium chloride and trisodium phosphate solution, ethylene glycol and propylene glycol are injected into the stirring tank (1), and the mixture is stirred. In addition, liquid nitrogen is injected into the stirring tank (1) little by little, and a motor (4) is activated to drive a stirring element (2), thereby stirring the mixture. <IMAGE> |
