GB1008793A - Improvements in and relating to forced flow vapour generators - Google Patents
Improvements in and relating to forced flow vapour generatorsInfo
- Publication number
- GB1008793A GB1008793A GB29028/62A GB2902862A GB1008793A GB 1008793 A GB1008793 A GB 1008793A GB 29028/62 A GB29028/62 A GB 29028/62A GB 2902862 A GB2902862 A GB 2902862A GB 1008793 A GB1008793 A GB 1008793A
- Authority
- GB
- United Kingdom
- Prior art keywords
- recirculation
- working medium
- tubes
- combustion
- reheater
- 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
- 238000002485 combustion reaction Methods 0.000 abstract 4
- 239000003546 flue gas Substances 0.000 abstract 3
- 239000000567 combustion gas Substances 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 230000003134 recirculating effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G5/00—Controlling superheat temperature
- F22G5/02—Applications of combustion-control devices, e.g. tangential-firing burners, tilting burners
-
- 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
- F22B29/02—Steam boilers of forced-flow type of forced-circulation type
- F22B29/023—Steam boilers of forced-flow type of forced-circulation type without drums, i.e. without hot water storage in the boiler
- F22B29/026—Steam boilers of forced-flow type of forced-circulation type without drums, i.e. without hot water storage in the boiler operating at critical or supercritical 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
- F22B29/12—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 operating with superimposed recirculation during starting and low-load periods, e.g. composite boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
- F22B35/06—Control systems for steam boilers for steam boilers of forced-flow type
- F22B35/10—Control systems for steam boilers for steam boilers of forced-flow type of once-through type
- F22B35/12—Control systems for steam boilers for steam boilers of forced-flow type of once-through type operating at critical or supercritical pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
- F22B35/06—Control systems for steam boilers for steam boilers of forced-flow type
- F22B35/10—Control systems for steam boilers for steam boilers of forced-flow type of once-through type
- F22B35/12—Control systems for steam boilers for steam boilers of forced-flow type of once-through type operating at critical or supercritical pressure
- F22B35/125—Control systems for steam boilers for steam boilers of forced-flow type of once-through type operating at critical or supercritical pressure operating with superimposed recirculation during starting or low load periods, e.g. composite 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G5/00—Controlling superheat temperature
- F22G5/10—Controlling superheat temperature by displacing superheater sections
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)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Combustion Of Fluid Fuel (AREA)
- Jet Pumps And Other Pumps (AREA)
- Pipeline Systems (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
1,008,793. Critical pressure boilers; regulating steam temperature. SULZER FRERES S.A. July 27, 1962 [July 27, 1961], No. 29028/ 62. Heading F4A. In a supercritical forced-flow, once-through vapour generator having a reheater 58 heated mainly by convection, the reheat temperature is controlled under varying load conditions by controlled recirculation of the working medium through the heating surfaces disposed in a combustion chamber 10 in conjunction with other means which increase the heat available in the combustion gases for the reheater. A feed pump 20 forces the working medium in series through an economizer 18, furnace lining tubes 32 and superheating sections 42, 50 to a turbine 56. At part load a recirculating pump 84 draws part of the working medium from a header 36, being the outlet header for the tubes 32, and delivers it to a mixing vessel 26 where it mixes with the fresh feed from the economizer 18. The effect of recirculation is to increase the average temperature of the medium in the tubes 32 thereby decreasing the heat transfer to these tubes and increasing the heat available in the combustion gases as they pass over the reheater 58. In conjunction with recirculation of working medium flue gases are recirculated by a fan 76, being introduced into the combustion chamber by ducts 80 to provide further control of the reheat temperature. The recirculated gases may be introduced at the base of the chamber 10, Fig. 5 (not shown) or together with the fuel and air, Fig. 6 (not shown). As an alternative to recirculation of the fluegases the positions of the combustion zone may be raised or lowered-by the use of tilting burners, Fig. 3 (not shown) in conjunction with recirculation of working medium. Measurement of the reheat temperature at a point 85 may be used through known control means to regulate the recirculation of working medium and flue gas or the alternative means for positioning the combustion zone in order to control the reheat temperature. Specifications 552,747, 598,141 and 1,008,795 are referred to.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US127176A US3202138A (en) | 1961-07-27 | 1961-07-27 | Vapor temperature control method |
US127395A US3135252A (en) | 1961-07-27 | 1961-07-27 | Recirculation system for steam generator |
US127289A US3135250A (en) | 1961-07-27 | 1961-07-27 | Steam generator utilizing a recirculating system |
US331196A US3202135A (en) | 1961-07-27 | 1963-12-17 | Vapor temperature control method |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1008793A true GB1008793A (en) | 1965-11-03 |
Family
ID=27494671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29028/62A Expired GB1008793A (en) | 1961-07-27 | 1962-07-27 | Improvements in and relating to forced flow vapour generators |
Country Status (7)
Country | Link |
---|---|
US (3) | US3135252A (en) |
BE (1) | BE620762A (en) |
CH (2) | CH402001A (en) |
DE (1) | DE1253723B (en) |
FR (2) | FR1416315A (en) |
GB (1) | GB1008793A (en) |
SE (1) | SE308529B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1030352A (en) * | 1964-02-05 | 1966-05-18 | Foster Wheeler Ltd | Supercritical steam power plants |
US3357407A (en) * | 1965-01-14 | 1967-12-12 | Struthers Thermo Flood Corp | Thermal recovery apparatus and method |
US3308792A (en) * | 1965-08-26 | 1967-03-14 | Combustion Eng | Fluid heater support |
US3307524A (en) * | 1965-09-16 | 1967-03-07 | Combustion Eng | Fluid heater support |
US3401674A (en) * | 1966-09-20 | 1968-09-17 | Combustion Eng | Steam generator recirculating pump operation |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9022C (en) * | Gebr. SIEMENS & Co. in Charlottenburg, Salzufer 2 | Periodically operated device combination in its application to mash distillation and rectification devices | ||
US2255612A (en) * | 1936-07-14 | 1941-09-09 | Bailey Meter Co | Control system |
US2088623A (en) * | 1936-07-22 | 1937-08-03 | Gen Electric | Elastic fluid power plant control and protection |
GB509746A (en) * | 1939-01-03 | 1939-07-20 | Babcock & Wilcox Ltd | Improvements in or relating to forced flow vapour generators |
GB719753A (en) * | 1951-10-23 | 1954-12-08 | Siemens Ag | Improvements in or relating to forced through-flow boilers |
US2969048A (en) * | 1953-11-20 | 1961-01-24 | Sulzer Ag | Feed water supply system for steam generators |
US2822784A (en) * | 1955-05-09 | 1958-02-11 | Babcock & Wilcox Co | Apparatus for and method of generating and superheating vapor |
BE564616A (en) * | 1957-02-07 | |||
GB831175A (en) * | 1957-02-07 | 1960-03-23 | Sulzer Ag | Apparatus and method for controlling a forced flow once-through steam generator |
NL229328A (en) * | 1958-06-13 |
-
0
- BE BE620762D patent/BE620762A/xx unknown
-
1961
- 1961-07-27 US US127395A patent/US3135252A/en not_active Expired - Lifetime
- 1961-07-27 US US127289A patent/US3135250A/en not_active Expired - Lifetime
-
1962
- 1962-07-20 CH CH881962A patent/CH402001A/en unknown
- 1962-07-23 CH CH883162A patent/CH394249A/en unknown
- 1962-07-24 DE DES80569A patent/DE1253723B/en active Pending
- 1962-07-26 FR FR905223A patent/FR1416315A/en not_active Expired
- 1962-07-26 FR FR905222A patent/FR1334598A/en not_active Expired
- 1962-07-27 GB GB29028/62A patent/GB1008793A/en not_active Expired
- 1962-07-27 SE SE8314/62A patent/SE308529B/xx unknown
-
1963
- 1963-12-17 US US331196A patent/US3202135A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
BE620762A (en) | |
US3135250A (en) | 1964-06-02 |
CH394249A (en) | 1965-06-30 |
US3135252A (en) | 1964-06-02 |
DE1253723B (en) | 1967-11-09 |
US3202135A (en) | 1965-08-24 |
FR1416315A (en) | 1965-11-05 |
SE308529B (en) | 1969-02-17 |
FR1334598A (en) | 1963-08-09 |
CH402001A (en) | 1965-11-15 |
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