FR2321588A1 - High pressure fired steam generator system - with 2: stage air flow control for high part: load efficiency - Google Patents

High pressure fired steam generator system - with 2: stage air flow control for high part: load efficiency

Info

Publication number
FR2321588A1
FR2321588A1 FR7625280A FR7625280A FR2321588A1 FR 2321588 A1 FR2321588 A1 FR 2321588A1 FR 7625280 A FR7625280 A FR 7625280A FR 7625280 A FR7625280 A FR 7625280A FR 2321588 A1 FR2321588 A1 FR 2321588A1
Authority
FR
France
Prior art keywords
servo
air flow
generator
speed
blower
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.)
Granted
Application number
FR7625280A
Other languages
French (fr)
Other versions
FR2321588B3 (en
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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
Application filed by BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of FR2321588A1 publication Critical patent/FR2321588A1/en
Application granted granted Critical
Publication of FR2321588B3 publication Critical patent/FR2321588B3/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00—General layout or general methods of operation of complete plants
    • F01K13/02—Controlling, e.g. stopping or starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/08—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with working fluid of one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0284—Conjoint control of two or more different functions

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Eletrric Generators (AREA)
  • Supercharger (AREA)

Abstract

Generally conventional pressure fired steam generator operates at a pressure of 9 bar or more, produced by a blower driven by a gas turbine powered only by exhaust gas from the generator. Generator output is controlled by a steam pressure sensor actuated servo-system which regulates fuel flow directly and matches air flow indirectly. At high power this is done via a sleeve valve whose movement varies the discharge flow from a secondary servo-system. This in turn alters the system pressure and thence the setting of the spring-loaded servo which controls gas turbine speed by way of the gas temperature at exit from the generator. A mechanical governor maintains the selected speed in the same way. To reduce air flow at lower power further than is possible using blower speed, without a striking loss of efficiency, a further servo come into action when the speed control unit reaches a bottom limit stop. This servo alters blower stator and possibly rotor blade angles.
FR7625280A 1975-08-22 1976-08-20 High pressure fired steam generator system - with 2: stage air flow control for high part: load efficiency Granted FR2321588A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1089675A CH592273A5 (en) 1975-08-22 1975-08-22

Publications (2)

Publication Number Publication Date
FR2321588A1 true FR2321588A1 (en) 1977-03-18
FR2321588B3 FR2321588B3 (en) 1979-05-18

Family

ID=4367966

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625280A Granted FR2321588A1 (en) 1975-08-22 1976-08-20 High pressure fired steam generator system - with 2: stage air flow control for high part: load efficiency

Country Status (4)

Country Link
CH (1) CH592273A5 (en)
DE (1) DE2542097C2 (en)
FR (1) FR2321588A1 (en)
SE (1) SE7609208L (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH552770A (en) * 1972-12-01 1974-08-15 Bbc Brown Boveri & Cie STEAM POWER PLANT WITH PRESSURE FIRED STEAM BOILER.

Also Published As

Publication number Publication date
CH592273A5 (en) 1977-10-14
SE7609208L (en) 1977-02-23
DE2542097A1 (en) 1977-03-03
DE2542097C2 (en) 1983-10-13
FR2321588B3 (en) 1979-05-18

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