The present invention relates to an ammonia gas absorption (GAX) absorption cycle, in which a portion of a refrigerant vapor which evaporates in an evaporator is rectified by a high-concentration refrigerant vapor in a rectifier, and then flows into an absorber, Thereby improving the efficiency.;It is an object of the present invention to form a first pipe so that a part of a refrigerant vapor flowing into an absorber from an evaporator is exchanged with a refrigerant vapor flowing into a condenser from a rectifier to form a refrigerant vapor at a high concentration, And a second pipe is formed so that a portion of the forced solution that is generated in the absorber and flows into the rectifier by pumping the solution pump and is directly heat exchanged with the solution pump by pumping the solution pump directly flows into the absorber, A third tube is formed to flow into the distribution plate formed at the upper end of the annularizer, and a steel solution flowing through the second tube flows through the GAX-absorber / The fourth solution is introduced into the regenerator so that the weak solution introduced into the absorber and the refrigerant vapor formed by heat exchange with the refrigerant vapor are introduced into the regenerator Document was to be achieved the purpose.
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