Patent Number: 6,253,571

Title: Liquid distributor, falling film heat exchanger and absorption refrigeration

Abstract: A liquid distributor, a falling film heat exchanger and an absorption refrigerating machine, which are inexpensive and favorably ensure uniform distribution of a liquid even in the case where the liquid distributor is installed in oblique position and foreign matters such as metal particles or the like are mixed in the liquid. The liquid distributor comprise a primary distribution duct of box-shaped cross section having an opening serving as a liquid inlet, and distribution holes serving as liquid outlets and formed on side surfaces of the primary distribution duct, and a group of box-shaped secondary distribution trays spaced from outer side surface and lower side surface of the primary distribution duct, and formed to be compartmented into a plurality of regions in a longitudinal direction of the primary distribution duct. Liquid dripping holes, through which the liquid is dropped, are formed in bottom surfaces of the secondary distribution trays. The liquid distributor is incorporated in falling film heat exchangers or absorption refrigerating machines.

Inventors: Fujii; Tatsuo (Ibaraki-ken, JP), Miyake; Satoshi (Ibaraki-ken, JP), Sato; Takehiro (Tsuchiura, JP)

Assignee: Hitachi, Ltd.

International Classification: F25B 15/00 (20060101); F28D 3/04 (20060101); F28D 3/00 (20060101); F25B 37/00 (20060101); F25B 39/02 (20060101); F25B 33/00 (20060101); F25B 015/12 ()

Expiration Date: 07/03/2018