Liquid heaters and vaporizers – Flue – Vertical
Patent
1977-11-25
1979-06-05
Sprague, Kenneth W.
Liquid heaters and vaporizers
Flue
Vertical
122406R, 122408R, F22B 904, F22D 704
Patent
active
041570774
ABSTRACT:
A water heater including a watertight tank having a plurality of flue tubes extending between the tank bottom and the tank top and having a burner means mounted beneath the tank and a hot water outlet mounted in the top portion of the tank. An agitator assembly is mounted in the bottom portion of the tank and includes a ring-shaped tubular member and a secondary tubular member connected to the ring-shaped tube. The ring-shaped and secondary tubular members are provided with a plurality of openings in the sides thereof. The agitator assembly is connected to a source of water so that when hot water is periodically withdrawn from the top of the tank water will flow into the tank through the openings in the agitator assembly. Such openings are positioned so that water flowing from inside the tubular members into the tank will flow in a number of different horizontal directions to thereby produce a substantially uniform stirring action in the bottom portion of the tank. Such stirring action will cause any solid particles in the water to be circulated upwardly and carried from the tank to thus prevent accumulation of such particles in the bottom of the tank.
REFERENCES:
patent: 1536613 (1925-05-01), Lyons
patent: 2593946 (1952-04-01), Weldy
patent: 2814278 (1957-11-01), Cameron
patent: 4037569 (1977-07-01), Bennett et al.
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