Sea water refrigeration and desalination unit

The utility model discloses a sea water refrigeration and desalination unit. A solution pump is respectively connected with an absorber and a solution heat exchanger. A relief valve is respectively connected with the solution heat exchanger and the absorber. One end of an evaporator is connected with a refrigerating condenser which is connected with the evaporator through a U-shaped pipe. A sea water pump is respectively connected with the absorber, a desalination condenser and a water jet air ejector through a cooling water branch, a desalination and cooling water branch, and an air ejector branch. The desalination and cooling water branch is connected with the desalination condenser. The air ejector branch is connected with the water jet air ejector. A heat source is divided into a heat source branch D and a heat source branch E through a heat source device. The heat source branches are respectively connected with a generator, the heat source device and a flash chamber. The sea water refrigeration and desal