Heat reclaiming system

Details Heat reclaiming system Heat reclaiming system

F - Mech Eng,Light,Heat,Weapons

28

D

257/15, 257/30

F28D 7/00 (2006.01) D06F 39/00 (2006.01) F28D 7/02 (2006.01) F28F 9/007 (2006.01) F28G 13/00 (2006.01)

Patent

CA 1133890

ABSTRACT OF THE DISCLOSURE A heat-reclaiming system is especially adapted for reclaiming heat from used laundry water. It comprises a heat exchanger providing for heat transfer from warm used laundry water to cold incoming water intended for use as fresh laundry water. The heat exchanger is formed with interior ducts and an outer shell. The interior ducts, preferably concentric coils hydraulically in parallel, define a space for the transport through the heat exchanger of the cold incoming water. The outer shell encloses the ducts, and the ducts and shell together define a space providing for the transport through the heat exchanger of the warm used laundry water. The flows of the warm and cold water through the heat exchanger are generally in opposite directions. Maximum heat-transfer efficiency is accomplished by simultaneously pumping both the shell and the duct sides of the exchanger at design flow condition, and maximizing the log mean temperature difference across the heat exchanger. -1-

366848

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