This utility model discloses a cooling
water circulation system for a freeze dryer, including a
refrigeration unit and a cooling water tank. The
refrigeration unit is connected to the cooling water tank via pipelines. The outlet of the cooling water tank is connected to a first freeze dryer and a second freeze dryer via a main pipeline. The first and second freeze dryers are connected to the return outlet of the cooling water tank via return pipes. The outlet of the cooling water tank is connected to the main pipeline. A water pump and a shut-off valve are installed on the main pipeline. The main pipeline is connected to a tee. The first freeze dryer is connected to the tee via a first
branch pipe, and the second freeze dryer is connected to the tee via a second
branch pipe. The diameters of the first and second
branch pipes are different. This utility model has a simple structure and reasonable design, allowing both freeze dryers to receive a matching
water intake, thereby ensuring the
refrigeration effect and meeting production needs.