display cooler single-stage ammonia absorption chiller cycle process
display cooler single-stage ammonia absorption chiller cycle process The pressure and temperature absorption refrigeration system in the display cooler system is divided into two parts, a high-pressure side and a low-pressure side. The evaporator and absorber belong to the low pressure side. The evaporation pressure is determined by the evaporation temperature. The temperature must be slightly lower than the temperature of the cooled medium. The pressure in the absorber is slightly lower than the evaporation pressure. On the one hand, there is flow resistance between them. On the other hand, it is necessary when the solution absorbs vapor. Has a driving force. The condenser and generator belong to the high-pressure side, and the condensing pressure depends on the condensing temperature, which must be slightly higher than the temperature of the cooling medium; the pressure in the generator is slightly higher than the pressure of the condenser due to the resistance of the pipeline. These pressure differences will be ignored in the following discussion. However, in reality, this pressure difference (especially the pressure difference between the evaporator and the absorber) must be considered, especially in cryogenic devices, the evaporator and A small pressure difference between the absorbers can cause a large difference in mass fraction. Since the condenser and the absorber are cooled by the same medium (usually water), if the cooling passes through the absorber and the condenser horizontally, their temperatures can be approximately regarded as the same; if the cooling water passes through the absorber first, then the condenser , The temperature in the condenser will be higher than the temperature in the absorber. The temperature of the solution in the generator is slightly lower than the temperature of the heating medium. display cooler The cycle process of a single-stage ammonia absorption chiller. In the ammonia absorption chiller, the vaporization temperatures of ammonia and water at the same pressure are relatively close (under a standard atmospheric pressure, the boiling points of ammonia and water are one. 33.41℃ and 100℃, the difference between the two is only 133.4℃, so when the ammonia solution is heated, the steam produced contains more water. The mass fraction of ammonia in the steam directly affects the performance of the display cooler device and the service life of the equipment 。In order to improve the quality score of ammonia, distillation must be carried out. The above articles are from refrigerated showcase commercial refrigeration and display cooler. For details, please log in: www.ihdjx.com Free Order Hotline: +86 18019567573 Contact: Mr. Shao 26662250 @qq.com
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