FALLING FILM TYPE HEAT EXCHANGER, ABSORPTION REFRIGERATION SYSTEM, SHIP, OFFSHORE STRUCTURE AND UNDERWATER STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a falling film type heat exchanger that substantially uniformly distributes liquid such as a refrigerant or an absorption liquid and drops the liquid on apexes of heat exchanger tubes in the falling film type heat exchanger, can make the liquid dropped from the heat exchanger tubes located in an upper row surely fall on surfaces of the heat exchanger tubes located in a lower row, and can avoid the lowering of heat exchanging performance even if being mounted to a ship, an offshore structure, an underwater structure or the like and applied with the inclination and the oscillation of the ship or the like, and to provide an absorption refrigeration system, the ship, the offshore structure, the underwater structure.SOLUTION: In the falling film type heat exchanger 20, a liquid distribution device 10 which distributes the liquid D on the external surfaces of the heat exchanger tubes 21 which are distributed in a wide area is constituted of: a distribution tank 11; a plurality of discharge devices 12 which discharge the liquid D from the distribution tank 11; and a first distribution passage 13 which receives the liquid D from the discharge devices 12. The liquid D is introduced into a region assigned by the first distribution passage 13, and the liquid D is dropped to the heat transfer pipes 21.