Liquid heaters and vaporizers – Fire tube – Vertical
Patent
1981-11-06
1984-02-28
Yuen, Henry C.
Liquid heaters and vaporizers
Fire tube
Vertical
122511, 122DIG13, 110323, 110326, F22B 902
Patent
active
044336446
ABSTRACT:
Two types of boilers for generating high pressure steam from gaseous effluents containing abrasive and corrosive solids are provided. Both types of boilers are vertical boilers of the fire-tube type with the gas flowing within the boiler tubes and with the water and steam surrounding the boiler tubes.
In one type of boiler according to this invention, the solids-containing gas is downfed through the boiler tubes with the gas emerging from the tubes and impinging on a concave, conical deflector and a convex nose cone located below the deflector. The deflector and nose cone serve to disengage solids from the gas.
In the other type of boiler according to the invention, the solids-containing gas first impinges on a baffle plate which serves to disengage solids from the gas. The solids flow down for removal, while the gas flows up the boiler tubes to generate steam.
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Helmbold David E.
Yuen Henry C.
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