GB1043889A - Improvements in steam generators having flue gas recycling - Google Patents
Improvements in steam generators having flue gas recyclingInfo
- 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
- 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
Links
- 239000003546 flue gas Substances 0.000 title abstract 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title 1
- 238000004064 recycling Methods 0.000 title 1
- 238000002485 combustion reaction Methods 0.000 abstract 9
- 239000007787 solid Substances 0.000 abstract 3
- 239000007789 gas Substances 0.000 abstract 2
- 206010022000 influenza Diseases 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000000567 combustion gas Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000003134 recirculating effect Effects 0.000 abstract 1
- 238000003303 reheating Methods 0.000 abstract 1
- 230000008646 thermal stress Effects 0.000 abstract 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Gas Burners (AREA)
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.
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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Families Citing this family (1)
| 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|---|
| NL125723C (en) | |
| BE641672A (en) | 1964-06-23 |
| CH400426A (en) | 1965-10-15 |
| NL287832A (en) |
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