GB1243511A - Improvements in boilers - Google Patents

Improvements in boilers

Info

Publication number
GB1243511A
GB1243511A GB3521668A GB3521668A GB1243511A GB 1243511 A GB1243511 A GB 1243511A GB 3521668 A GB3521668 A GB 3521668A GB 3521668 A GB3521668 A GB 3521668A GB 1243511 A GB1243511 A GB 1243511A
Authority
GB
United Kingdom
Prior art keywords
tube
section
boiler
flame tube
heat transfer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3521668A
Inventor
John Arthur Tatem
Robert Spencer Williams
Reginald Dennis Northcote
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
G W B BOILERS Ltd
Original Assignee
G W B BOILERS Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by G W B BOILERS Ltd filed Critical G W B BOILERS Ltd
Publication of GB1243511A publication Critical patent/GB1243511A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B7/00—Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body
    • F22B7/12—Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body with auxiliary fire tubes; Arrangement of header boxes providing for return diversion of flue gas flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid

Abstract

1,243,511. Oil fired boilers; water tube in boiler flue. G.W.B. BOILERS Ltd. 24 Oct., 1969 [24 July, 1968 (2)], Nos. 35215/68 and 35216/68. Headings F4A and F4B. The divergent flame tube 14 of combustion apparatus of the type having an air-jacketed flame tube supplied with air and fuel under pressure, is connected to the heat transfer tube 11 of a shell tube boiler through an accelerator portion comprising a constant cross-section part 29 and a part 31 of reduced cross-section in direct heat transfer relation with the water in the boiler, the arrangement being such that an annular zone of turbulence is formed on the flame tube side of the part of reduced cross-section so that the effective gas path from the fuel inlet of the flame tube to the heat transfer tube 11 is of divergent-convergent form. The air is fed to the flame tube to follow a spiral path, and the cross-section of the heat transfer tube 11 is reduced as it is father from the flame tube. Further gas passes of less cross-section may be connected to the first pass 11 by arcuate sections supported to allow expansion. The reduced cross-section of the gas passes may be provided by inserting cores, which may be connected in the boiler circulation. The boiler may have an annular return flue pass.
GB3521668A 1968-07-24 1968-07-24 Improvements in boilers Expired GB1243511A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3521568 1968-07-24

Publications (1)

Publication Number Publication Date
GB1243511A true GB1243511A (en) 1971-08-18

Family

ID=10375182

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3521668A Expired GB1243511A (en) 1968-07-24 1968-07-24 Improvements in boilers

Country Status (1)

Country Link
GB (1) GB1243511A (en)

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