CN
The refrigerant of the dry shell and tube type evaporator is not flooded with liquid, and the water flows outside the tube cluster. Refrigerant flow usually has several processes, due to the gradual vaporization of refrigerant liquid, usually the more upward, the more the number of process tubes. In order to increase the water side heat exchange, a number of baffles are arranged on the outside of the cylinder heat transfer tube, so that the water flows across the tube cluster many times.
The full-liquid shell-and-tube evaporator flows water in the tube, and the refrigerant evaporates outside the tube cluster, so the heat transfer surface is basically in contact with the liquid refrigerant. Generally, the amount of refrigerant filled in the shell is about 55% ~ 65% of the effective volume of the cylinder. After the refrigerant liquid absorbs heat and vaporizes, it returns to the compressor through the liquid separator at the top of the cylinder.
water-cooled condenser
