12 Pallet Vacuum Cooler With Automatic Conveyor Belt

6000kgs vacuum cooler is for large farm’s processing model. With a fast shift “in and out” automatic transport plate. Cool down vegetables fast after harvest.

Fresh agricultural products are still alive after harvest, and the respiration and other physiological changes continue to accelerate the aging, withering and yellowing of the products. Low temperature can inhibit the physiological changes that cause product deterioration and slow down the growth of bacteria.

Under a standard atmospheric pressure, the boiling point of water is 100 ℃, and the evaporation heat is 2256KJ/kg; When the pressure drops to 610 Pa, the boiling point of water is 0 ℃ and the evaporation heat is 2500 KJ/kg. With the decrease of air pressure, the boiling point of water decreases, and the heat consumed by evaporation of unit mass of water increases. Vacuum precooling is to make water evaporate rapidly in the vacuum treatment room at a lower temperature under vacuum conditions. In this process, more heat is consumed, and the refrigeration effect is produced in the vacuum room without external heat source. The vacuum precooling technology has simple principle and high cooling speed, and is widely used in the preservation, transportation and storage of agricultural products.

In vacuum precooling, precooling refers to rapid cooling in a short period of time. The precooling aging is determined according to the nature of the object to be cooled, usually in minutes or hours. Vacuum precooling is not a simple cooling method, but a technology that uses the special vacuum environment to achieve rapid cooling.