Evaporative duplex counterheat exchanger

Details Evaporative duplex counterheat exchanger Evaporative duplex counterheat exchanger

F - Mech Eng,Light,Heat,Weapons

28

D

F28D 5/00 (2006.01) F01K 21/04 (2006.01) F02C 7/143 (2006.01) F25B 19/00 (2006.01) F28D 7/00 (2006.01) F28D 9/00 (2006.01) F28F 9/26 (2006.01)

Patent

CA 2492530

A duplex exchanger (22) includes first and second heat exchangers (24, 26) each including a main flow channel (28, 32) and a cooperating counterheat channel (30, 34). The first counterheat channel (30) is joined to the first main flow channel (28) for receiving a cooled primary stream (18) therefrom. The second counterheat channel (34) is also joined to the first main channel (28) splitting the primary stream therefrom. An evaporative coolant (38) is injected into the first counterheat channel (30), and an evaporative saturant (38) is injected into the second counterheat channel (34). Heat from the initially hot primary stream (18) in the first exchanger (24) evaporates the coolant in the first counterheat channel (30) for self-cooling the primary stream in the first main channel (28). Heat from a hot secondary stream (20) channeled through the second main channel (32) evaporates the saturant in the second counterheat channel (34) for adding mass to the primary stream channeled therethrough.

La présente invention concerne un échangeur duplex (22). Ledit échangeur comprend des premier et second échangeurs de chaleur (24, 26), chacun comprenant un canal d'écoulement principal (28, 32) et un canal de contre-chaleur (30, 34) coopérant. Le premier canal de contre-chaleur (30) est associé au premier canal d'écoulement principal (28) destiné à recevoir un flux primaire refroidi (18). Le second canal de contre-chaleur (34) est également associé au premier canal principal (28) divisant le flux primaire. Un réfrigérant évaporatif (38) est injecté dans le premier canal de contre-chaleur (30) et un agent d'imprégnation évaporatif (38) est injecté dans le second canal de contre-chaleur (34). La chaleur du flux primaire initialement chaud (18) présent dans le premier échangeur (24) évapore le réfrigérant présent dans le premier canal de contre-chaleur (30) afin de refroidir naturellement le flux primaire présent dans le premier canal principal (28). La chaleur d'un flux secondaire chaud (20) dirigé dans le second canal principal (32) évapore l'agent d'imprégnation présent dans le second canal de contre-chaleur (34) pour donner plus de poids au flux primaire dirigé.

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