GB721155A - Improvements in or relating to steam generating and superheating apparatus - Google Patents
Improvements in or relating to steam generating and superheating apparatusInfo
- Publication number
- GB721155A GB721155A GB13301/51A GB1330151A GB721155A GB 721155 A GB721155 A GB 721155A GB 13301/51 A GB13301/51 A GB 13301/51A GB 1330151 A GB1330151 A GB 1330151A GB 721155 A GB721155 A GB 721155A
- Authority
- GB
- United Kingdom
- Prior art keywords
- duct
- steam
- tubes
- rear wall
- june
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G5/00—Controlling superheat temperature
- F22G5/04—Controlling superheat temperature by regulating flue gas flow, e.g. by proportioning or diverting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
721,155. Steam &c. boilers ; superheating. BABCOCK & WILCOX, Ltd. June 5, 1951 [June 9, 1950], No. 13301/51. Class 123 (3). A steam boiler comprises a vertical furnace chamber 10 which is lined with steam-generating wall tubes 12, 14, 17 and is fired by rows of pulverised fuel, &c. burners 36, 38, the combustion gases flowing from the furnace successively through a tube screen 14a formed by extensions of the rear wall tubes 14, a convection heated superheater 24, 26, and further steam-generating tubes 20, 22 to an air heater 60, and the super-heat temperature is regulated by withdrawing relatively cool gases from the inlet duct to the said air heater and directing them by a fan 66 through ducts 63, 68, 69, 70 into the lower end of the furnace in such manner that they continue to flow in a stream between the main combustion zone and the rear wall tubes 14. A control and shut-off damper 90 is fitted within the duct 68 and is actuated bv manually-operated means 98 or, alternatively, automatically in accordance with the steam temperature ; the duct 68 is also fitted with an atmospheric connection 84 provided with a pressure-responsive valve 86 adapted to admit air to the duct when a tendency to reverse flow therein arises. In the construction shown the duct 70 discharges between the spaced lower ends 74, 76 of the tubes 14 throughout the whole width of the rear wall of the throat 54 of the boiler ash pit 57, but in a modification the duct 70 discharges through an intermediate portion of the front inclined wall 52 of the hopper 50 above said pit. Specifications 367,699, 504,114, 516,070, 523,870 and 540,119 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US721155XA | 1950-06-09 | 1950-06-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB721155A true GB721155A (en) | 1954-12-29 |
Family
ID=22105674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13301/51A Expired GB721155A (en) | 1950-06-09 | 1951-06-05 | Improvements in or relating to steam generating and superheating apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB721155A (en) |
-
1951
- 1951-06-05 GB GB13301/51A patent/GB721155A/en not_active Expired
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