Water heating apparatus

Details Water heating apparatus Water heating apparatus

1993-05-12

1994-05-17

Favors, Edward G.

Liquid heaters and vaporizers

Water tube

Coil

122 14, 122 18, 122245, 1223673, 165163, F22B 3710

Patent

active

053118430

ABSTRACT:
A radially fired water heating apparatus (10) having a plurality of stacked segments of multiple-loop, finned coiled tubing (58) separated by inner and outer support baffles (86, 88), all contained within a cylindrical baffle (20) which cooperates with the coiled tubing (58) and support baffles (86, 88) to direct combustion by-products into an annulus (24) promoting heat transfer to a countercurrent flow of inlet air, the water being supplied to and recovered from the stacked segments of coiled tubing (58) through inlet and outlet headers (54, 56) disposed outside cylindrical baffle (20) that can be selectively modified by installing or removing baffles (90, 92) for either single-pass or multiple-pass operation.

REFERENCES:
patent: 4029056 (1977-06-01), Wanson
patent: 4261299 (1981-04-01), Marran
patent: 4793800 (1988-12-01), Vallett et al.
patent: 4901677 (1990-02-01), Demetri
patent: 4938204 (1990-07-01), Adams
"A Variety of Design Factors Govern Water Heater Choices", Consulting/Specifying Engineer, Jan. 1991, pp. 48-51.

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