Standard water temperature machine
Standard oil temperature machine
Air-cooled low temperature chiller -10
How to choose refrigerant for cold water machine?
1) The temperature of the air-cooled chiller industry should be higher, and phase change can occur at room temperature or ordinary high temperature. This is an underlying plea for refrigerant in a vapor refrigerator. 2) suitable saturated vapor pressure. Transpiration pressure *** Do not lower than atmospheric pressure to prevent air leakage into the refrigeration system. The condensing pressure of the air-cooled chiller should not be too high to prevent the refrigerator and equipment from increasing excessively. Together, the ratio of condensing pressure to transpiration pressure should not be too large. The air-cooled chiller prevents the air temperature from crossing the high temperature and the air transmission coefficient of the compressor from being lost when the tightening stops. 3) The condensation temperature is low to prevent the refrigerant from condensing at the transpiration temperature. 4) The viscosity and density should be small to reduce the resistance loss of the refrigeration system. 5) high thermal conductivity. In order to advance the heat transfer coefficient of the heat exchanger, the heat transfer area and the amount of metal material loss are reduced. 6) the adiabatic index is small, can make the tightening process power consumption is reduced, the gas temperature is not high when the tightening is stopped. 7) liquid air cooled chiller heat capacity is small. The loss of the saving process can be reduced. 8) The thermal fullness of reincarnation is as large as possible. 9) No burning, no blasting, non-toxic, no corrosive infection of metal, no chemical infection with lubricating oil, no differentiation at low temperature and harmful to human body. 10) cheap value, easy to get.