Flat plate heat exchanger applied to dual refrigeration system

摘要

The present invention provides a flat plate heat exchanger applied to a dual refrigeration system in which installation and maintenance of the device are convenient and cost can be reliably reduced. A flat plate heat exchanger is configured by laminating a plurality of plates to form two adjacent first bodies 1 and a second body 2, and a first refrigerant flow space 11 provided in the first bodies. And by simultaneously heating the water of the hydrothermal flow space 13 with the binary refrigerant using the second refrigerant flow space 12, the binary refrigerant is directly transmitted from the second refrigerant flow space of the first main body to the second The second refrigerant flows into the second refrigerant flow space 22 of the main body, while the first refrigerant flows out of the first main body, and then flows again into the first refrigerant flow space 21 of the second main body, and the second refrigerant flows inside the second main body. Heat exchange with the first refrigerant is performed again, and the temperature reduction effect is achieved by two times of cold condensation, and the first refrigerant exchanges heat with the second refrigerant inside the second main body and is evaporated to elevate the temperature To be achieved. [Selected figure] Figure 4