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Diffusion refrigeration display cooler
diffusion refrigeration display cooler
diffusion refrigeration display cooler is an absorption refrigeration display cooler with a binary solution as the circulating working medium, suitable for large and medium-sized device enterprises, for household display coolers or medical display coolers Absorption refrigeration display cooler with three-component circulating working fluid. The cooling capacity of this kind of refrigeration display cooler is relatively small, generally about 0.1kW, and the volume of the display cooler is 25 to 250 liters. In the absorption display cooler system, ammonia is used as the refrigerant, the aqueous ammonia solution is the absorbent, and hydrogen is the equilibrium gas. Because the entire system is under the same pressure, there is no solution pump, expansion valve, and no moving parts. All equipment is welded by pipes. The system runs smoothly, without noise and vibration, without leakage, long life, and low cost. It is suitable for household use and has value in power-deficient areas. The pressure balance of the
system is achieved by introducing hydrogen into the absorber and evaporator. Because the total pressure in the evaporator is greater than the saturation pressure of ammonia at the evaporation temperature, the liquid ammonia in the evaporator will not boil, and no bubbles can form under the liquid surface. However, if the ammonia in the hydrogen is not saturated, ammonia will vaporize and enter the hydrogen through diffusion. So this kind of absorption system is also called absorption-diffusion system. Because the pressure in the entire system is balanced, the movement of the working fluid in the system depends entirely on the difference in density, the height of the position, the inclination of the pipeline and the difference in the partial pressure to flow and spread, so the relative position of the equipment and the inclination of the pipeline The temperature is strictly required, otherwise it will affect the cooling effect and even lose the cooling capacity of the display cooler.
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