GB1008793A - Improvements in and relating to forced flow vapour generators - Google Patents

Improvements in and relating to forced flow vapour generators

Info

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
Application number
GB29028/62A
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
Sulzer Freres SA
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
Priority claimed from US127176A external-priority patent/US3202138A/en
Application filed by Sulzer AG, Sulzer Freres SA filed Critical Sulzer AG
Publication of GB1008793A publication Critical patent/GB1008793A/en
Expired legal-status Critical Current

Links

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)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Pipeline Systems (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Jet Pumps And Other Pumps (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.
GB29028/62A 1961-07-27 1962-07-27 Improvements in and relating to forced flow vapour generators Expired GB1008793A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US127289A US3135250A (en) 1961-07-27 1961-07-27 Steam generator utilizing a recirculating system
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
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) FR1334598A (en)
GB (1) GB1008793A (en)
SE (1) SE308529B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
NL224694A (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
NL105665C (en) * 1958-06-13

Also Published As

Publication number Publication date
US3202135A (en) 1965-08-24
BE620762A (en)
CH402001A (en) 1965-11-15
CH394249A (en) 1965-06-30
SE308529B (en) 1969-02-17
US3135252A (en) 1964-06-02
DE1253723B (en) 1967-11-09
US3135250A (en) 1964-06-02
FR1334598A (en) 1963-08-09
FR1416315A (en) 1965-11-05

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