Waste heat boiler for abstraction of heat energy from gaseous ef

Details Waste heat boiler for abstraction of heat energy from gaseous ef Waste heat boiler for abstraction of heat energy from gaseous ef

1978-05-15

1980-02-19

Favors, Edward G.

Liquid heaters and vaporizers

Fire tube

Horizontal

122DIG14, F22B 3100

Patent

active

041889169

ABSTRACT:
A waste heat boiler has an elongated horizontally oriented gas pass, a steam drum extending lengthwise of the gas pass but wholly outside the same at an elevation near but not above the roof of the gas pass. Transversely extending rows of nested water tubes which are preferably L-shaped with vertical and substantially horizontal stretches have the outer extremities of their substantially horizontal stretches joined to vertical feeder headers that extend upwardly along one side wall of the gas pass, and have the upper extremities of their vertical stretches joined to collecting headers that extend transversely across the gas pass just below its roof. The rows of tubes are arranged in groups or bundles, each held together by distributing headers and receiving headers that are separately connected with the steam drum and to which are respectively joined the feeder headers and the receiving headers. Any selected group or bundle of tubes can be lifted from the gas pass through an opening provided by removal of the section of the roof thereabove, upon disconnection from the steam drum of the distributing and receiving headers of the selected group or bundle of tubes. The described arrangement of the tubes obviates the need for the customary mud drum.

REFERENCES:
patent: 3583369 (1971-06-01), Trimbach et al.
patent: 3858556 (1975-01-01), Terentie et al.

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