Premix boiler construction

Details Premix boiler construction Premix boiler construction

1990-10-15

1992-05-05

Bennet, Henry A.

Liquid heaters and vaporizers

Stand boiler

1221352, 1223671, 1223672, F22B 718, F22B 3740

Patent

active

051098067

ABSTRACT:
A gas boiler having a boiler unit constructed by interconnected boiler sections each having an internal waterway bounded by one or more heat transfer surfaces. Baffles on the boiler sections define serpentine flue passages, and the baffles include bypass openings formed by notches and/or slits to suppress standing waves and associated noise. A burner includes a conical burner element having burner ports arranged in clusters to enhance the flame distribution and stability. A distributor cone nested within the burner element provides a pressure drop for noise suppression. The blower shaft is equipped with a magnetic plastic washer which effects a seal against air infiltration while allowing the blower shaft to shift from side to side.

REFERENCES:
patent: 1777950 (1930-10-01), Williams
patent: 2633107 (1953-03-01), Mandelburg
patent: 3563212 (1971-02-01), Hoagland
patent: 3857367 (1974-12-01), Giesen
patent: 4344479 (1982-08-01), Bailey
patent: 4382425 (1983-05-01), Boyes
patent: 4480590 (1984-11-01), Rhodin
patent: 4577615 (1986-03-01), Tomlinson
patent: 4893610 (1990-01-01), Kang

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