GB920449A - Improvements relating to multi-pass steam boilers - Google Patents

Improvements relating to multi-pass steam boilers

Info

Publication number
GB920449A
GB920449A GB1133460A GB1133460A GB920449A GB 920449 A GB920449 A GB 920449A GB 1133460 A GB1133460 A GB 1133460A GB 1133460 A GB1133460 A GB 1133460A GB 920449 A GB920449 A GB 920449A
Authority
GB
United Kingdom
Prior art keywords
block
gases
turning space
gas turning
tube
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
GB1133460A
Inventor
Frederick Douglas Brand
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.)
SPENCER BONECOURT CLARKSON Ltd
Original Assignee
SPENCER BONECOURT CLARKSON 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 SPENCER BONECOURT CLARKSON Ltd filed Critical SPENCER BONECOURT CLARKSON Ltd
Priority to GB1133460A priority Critical patent/GB920449A/en
Publication of GB920449A publication Critical patent/GB920449A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Abstract

920,449. Return tube steam boilers. SPENCER-BONECOURT-CLARKSON Ltd. March 30, 1961 [March 31, 1960], No. 11334/60. Class 123 (2). In a return tube boiler comprising a furnace tube 5 connected through a first gas turning space 7 lined with refractory blocks and closed by a door 21 to a set of fire tubes 18 which convey the gases to a second gas turning space 4 whence a second set of fire tubes return the gases to a third gas turning space 8 provided with an outlet to a chimney 9, back-flow of gases through the furnace tube due to sudden combustion of pockets of fuel in the rear part of the tube or in the gas turning space 7 is prevented by providing an explosion door between the spaces 7, 8. The door consists of a block 15 which fits loosely into an aperture 14 provided in the upper horizontal plate 11 of the partition separating the spaces 7, 8, the block having a supporting flange 15A which rests on the plate whilst the latter has welded to it a metal strap 16 which extends across the block 15 and limits its upward movement. Sudden pressure occurring in the space 7 lifts the block 15 to vent gas to the chimney 9. When the pressure falls, the block 15 drops to close the aperture.
GB1133460A 1960-03-31 1960-03-31 Improvements relating to multi-pass steam boilers Expired GB920449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1133460A GB920449A (en) 1960-03-31 1960-03-31 Improvements relating to multi-pass steam boilers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1133460A GB920449A (en) 1960-03-31 1960-03-31 Improvements relating to multi-pass steam boilers

Publications (1)

Publication Number Publication Date
GB920449A true GB920449A (en) 1963-03-06

Family

ID=9984340

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1133460A Expired GB920449A (en) 1960-03-31 1960-03-31 Improvements relating to multi-pass steam boilers

Country Status (1)

Country Link
GB (1) GB920449A (en)

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