Economizer for smoke tube boilers for high pressure steam and ho

Details Economizer for smoke tube boilers for high pressure steam and ho Economizer for smoke tube boilers for high pressure steam and ho

1978-03-20

1980-01-08

Sprague, Kenneth W.

Liquid heaters and vaporizers

Feed heaters

122 83, F22D 100, F22B 908

Patent

active

041822765

ABSTRACT:
An economizer system for preheating feed or return water in a high pressure steam or hot water smoke-tube boiler having a smoke-heated convection-effecting portion. The smoke tubes at the end of the smoke tube convection-effecting portion are surrounded by a jacket with staggered baffle plates penetrated by the smoke tubes so as to form a wavy or serpentine flow channel for the feed or return water in forced counterflow to the flue gas. The jacket may be encircled by a second jacket forming a chamber which may be filled with insulating material or form a preheater in the water supply system to the flow channel of the economizer.

REFERENCES:
patent: 525553 (1894-09-01), Keasbey
patent: 543688 (1895-07-01), Keasbey
patent: 799265 (1905-09-01), Reeve
patent: 3793994 (1974-02-01), Olsen

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