Direct contact water heater with dual water heating chambers

Details Direct contact water heater with dual water heating chambers Direct contact water heater with dual water heating chambers

1996-05-30

1998-06-16

Yeung, James C.

Stoves and furnaces

Liquid heater

Fluid fuel burner for other than top-accessible vessel

126359, 122 311, F24H 110

Patent

active

057655464

ABSTRACT:
A dual direct contact water heater is described and consists of a heater housing having two sections, each section having a water reservoir. One section provides hot water at a high temperature and provides a source of heat exchange to heat an external source of water for commercial use. A burner is provided in the first section to provide the heat source to a packing through which water percolates. The source of water for the first section is the outlet of a heat exchanger whereby water from the reservoir is recirculated in a closed circuit in the first section. Hot gases rising from the first section is directed to a second section which also includes a second packing and a reservoir and it also has a closed loop whereby a second source of hot water, at a lower temperature, is utilized in a closed loop and in heat exchange with a second external source to produce domestic hot water or without heat exchanger to produce hot water for various processes. The fumes at the exhaust port of the second section are cooled considerably whereby the total efficiency of the water heater is greatly increased.

REFERENCES:
patent: 1527740 (1925-02-01), Lipshitz
patent: 3204629 (1965-09-01), Newton, Jr.
patent: 3386436 (1968-06-01), Miyahara
patent: 4753220 (1988-06-01), Lutzen
patent: 5086731 (1992-02-01), Lockett
patent: 5293861 (1994-03-01), Mandeville et al.
patent: 5305735 (1994-04-01), Welden

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