GB1043889A – Improvements in steam generators having flue gas recycling
– Google Patents
GB1043889A – Improvements in steam generators having flue gas recycling
– Google Patents
Improvements in steam generators having flue gas recycling
Info
Publication number
GB1043889A
GB1043889A
GB4834563A
GB4834563A
GB1043889A
GB 1043889 A
GB1043889 A
GB 1043889A
GB 4834563 A
GB4834563 A
GB 4834563A
GB 4834563 A
GB4834563 A
GB 4834563A
GB 1043889 A
GB1043889 A
GB 1043889A
Authority
GB
United Kingdom
Prior art keywords
combustion chamber
walls
gases
wall
tube
Prior art date
1962-12-21
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
GB4834563A
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
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.)
1962-12-21
Filing date
1963-12-06
Publication date
1966-09-28
1963-12-06
Application filed by Sulzer AG, Gebrueder Sulzer AG
filed
Critical
Sulzer AG
1966-09-28
Publication of GB1043889A
publication
Critical
patent/GB1043889A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
F23C9/08—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F22—STEAM GENERATION
F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
F22B1/00—Methods of steam generation characterised by form of heating method
F22B1/22—Methods of steam generation characterised by form of heating method using combustion under pressure substantially exceeding atmospheric pressure
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F22—STEAM GENERATION
F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
F22B29/00—Steam boilers of forced-flow type
F22B29/06—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F22—STEAM GENERATION
F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
F22B35/00—Control systems for steam boilers
F22B35/002—Control by recirculating flue gases
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F22—STEAM GENERATION
F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
F22B37/00—Component parts or details of steam boilers
F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
F22B37/36—Arrangements for sheathing or casing boilers
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F22—STEAM GENERATION
F22G—SUPERHEATING OF STEAM
F22G5/00—Controlling superheat temperature
F22G5/06—Controlling superheat temperature by recirculating flue gases
Abstract
1,043,889. Forced flow steam boilers; recirculating combustion gases. SULZER BROS. Ltd. Dec. 6, 1963 [Dec. 21, 1962], No. 48345/63. Headings F4A and F4B. A steam generator in which flue gases are recycled through the space between the combustion chamber tube wall and a solid wall extending over at least part of the combustion chamber, consists of a vertical combustion chamber 1, Fig. 1 (not shown), fired by burners 35 and containing panel type superheating surfaces 8. Flues 7, 9 extend from the top of the combustion chamber and contain contact heating surfaces 31 . . . 34 for superheating, reheating and preheating. The chamber and flues are bounded by tube walls 2, 3, 10, 11 which are spaced from solid walls 4, 12, 13 forming spaces 30, 37, 38 respectively. A portion of the flue gases are drawn by fan 6 from the flue 9 and recycled via an annular duct 5, approximately half way up the combustion chamber, through the passages 30, 37, 38. The tube walls are thereby heated on both sides which considerably reduces their thermal stresses, further by varying the recirculation flow the combustion chamber flame temperature can be influenced. Gases passing downwards through passage 30 enter the combustion chamber through opening 41, between the bottom of the tube walls 2 and the top edge of the funnelshaped tube wall 3, and opening 42 in the bottom of wall 3 through which combustion air enters. Additional outlets of various sizes can be arranged in wall 2 to increase the area of mixing of flame and recycled flue gases. If the outlets are distributed over the entire height of the combustion chamber the hot flame gases can be prevented from touching the walls, thereby reducing the formation of S0 3 and the consequent cold corrosion. The solid walls may consist of a sheet metal skin and thermal insulation 25 and may be of circular cross-section particularly if the generator is operated at a pressure above atmospheric.
GB4834563A
1962-12-21
1963-12-06
Improvements in steam generators having flue gas recycling
Expired
GB1043889A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
CH1490862A
CH400426A
(en)
1962-12-21
1962-12-21
Steam generator with flue gas recirculation
Publications (1)
Publication Number
Publication Date
GB1043889A
true
GB1043889A
(en)
1966-09-28
Family
ID=4404748
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4834563A
Expired
GB1043889A
(en)
1962-12-21
1963-12-06
Improvements in steam generators having flue gas recycling
Country Status (4)
Country
Link
BE
(1)
BE641672A
(en)
CH
(1)
CH400426A
(en)
GB
(1)
GB1043889A
(en)
NL
(2)
NL125723C
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US20140272736A1
(en)
*
2013-03-15
2014-09-18
Fives North American Combustion, Inc.
Low NOx Combustion Method and Apparatus
CN109654465A
(en)
*
2019-01-23
2019-04-19
王亚威
A kind of top ignition steam generator
Families Citing this family (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US9874346B2
(en)
*
2013-10-03
2018-01-23
The Babcock & Wilcox Company
Advanced ultra supercritical steam generator
0
NL
NL287832D
patent/NL287832A/xx
unknown
NL
NL125723D
patent/NL125723C/xx
active
1962
1962-12-21
CH
CH1490862A
patent/CH400426A/en
unknown
1963
1963-12-06
GB
GB4834563A
patent/GB1043889A/en
not_active
Expired
1963-12-23
BE
BE641672A
patent/BE641672A/xx
unknown
Cited By (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US20140272736A1
(en)
*
2013-03-15
2014-09-18
Fives North American Combustion, Inc.
Low NOx Combustion Method and Apparatus
US9909755B2
(en)
*
2013-03-15
2018-03-06
Fives North American Combustion, Inc.
Low NOx combustion method and apparatus
CN109654465A
(en)
*
2019-01-23
2019-04-19
王亚威
A kind of top ignition steam generator
CN109654465B
(en)
*
2019-01-23
2020-11-27
泗县智来机械科技有限公司
Top combustion type steam generator
Also Published As
Publication number
Publication date
BE641672A
(en)
1964-06-23
NL287832A
(en)
CH400426A
(en)
1965-10-15
NL125723C
(en)
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