Economizer system with side-by-side economizers

Details Economizer system with side-by-side economizers Economizer system with side-by-side economizers

1996-05-31

1998-06-23

Lazarus, Ira S.

Heat exchange

Line connected conduit assemblies

In common casing

165168, 165169, 122 7R, 122421, F28F 922, F22D 102

Patent

active

057691568

ABSTRACT:
An otherwise conventional recovery boiler for burning black liquor requires less capital investment and takes up less space by constructing the economizers in a particular manner. At least first and second economizers are provided for preheating feed water utilizing flue gas from combustion of the black liquor. The economizers are positioned substantially side-by-side, in the width dimension of the recovery boiler furnace, and connected in such a way that flue gas leaving the first economizer passes in a substantially transverse horizontal direction and then through a substantially vertical intra-economizer flow channel into the second economizer. A boiler bank may be connected between the superheater section of the recovery boiler and the first economizer, and any number of economizers may be utilized.

REFERENCES:
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patent: 2075044 (1937-03-01), Lucke
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patent: 2983260 (1961-05-01), Huet
patent: 3768447 (1973-10-01), Kallstrand
patent: 3915654 (1975-10-01), Oni et al.
patent: 4031862 (1977-06-01), Smith
patent: 4479536 (1984-10-01), Lameris
patent: 4739729 (1988-04-01), Rettemeier et al.
patent: 5247907 (1993-09-01), Lee et al.

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