WO2010114818A3 - An ejector driven steam generator start up system - Google Patents

An ejector driven steam generator start up system Download PDF

Info

Publication number
WO2010114818A3
WO2010114818A3 PCT/US2010/029155 US2010029155W WO2010114818A3 WO 2010114818 A3 WO2010114818 A3 WO 2010114818A3 US 2010029155 W US2010029155 W US 2010029155W WO 2010114818 A3 WO2010114818 A3 WO 2010114818A3
Authority
WO
WIPO (PCT)
Prior art keywords
steam generator
flow
recirculation
fluid
feed water
Prior art date
Application number
PCT/US2010/029155
Other languages
French (fr)
Other versions
WO2010114818A2 (en
Inventor
John M. Banas
Pavan Kumar S. Ravulaparthy
Ganesh A. Ganesh
Robert J. Moriarty
Bryan W. Mruk
Original Assignee
Alstom Technology Ltd
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 Alstom Technology Ltd filed Critical Alstom Technology Ltd
Priority to CN2010800164533A priority Critical patent/CN102686944A/en
Priority to EP10723843A priority patent/EP2414729A2/en
Publication of WO2010114818A2 publication Critical patent/WO2010114818A2/en
Publication of WO2010114818A3 publication Critical patent/WO2010114818A3/en

Links

Classifications

    • 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
    • F22B35/14—Control systems for steam boilers for steam boilers of forced-flow type during the starting-up periods, i.e. during the periods between the lighting of the furnaces and the attainment of the normal operating temperature of the steam boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D7/00—Auxiliary devices for promoting water circulation
    • F22D7/04—Injectors for water or steam

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

A generating system is presented that includes a steam generator, a separator coupled to the generator, a supply providing feed water, a start-up system coupled to and receiving the feed water, and a recirculation system coupled to the start-up system. The steam generator operates in a plurality of operating modes. In one mode the steam generator generates a flow of steam and fluid. The separator separates the flow into components of steam and fluid. The recirculation system receives the feed water from the start-up system and provides a required flow to the steam generator during at least one mode. The recirculation system includes an ejector. The ejector induces a portion of the fluid from the separator into the recirculation system, mixes the induced fluid with the feed water to provide a recirculation flow, and the recirculation system provides the required flow to the steam generator including the recirculation flow.
PCT/US2010/029155 2009-04-02 2010-03-30 An ejector driven steam generator start up system WO2010114818A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2010800164533A CN102686944A (en) 2009-04-02 2010-03-30 An ejector driven steam generator start up system
EP10723843A EP2414729A2 (en) 2009-04-02 2010-03-30 An ejector driven steam generator start up system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16604509P 2009-04-02 2009-04-02
US61/166,045 2009-04-02
US12/748,718 2010-03-29
US12/748,718 US20100251976A1 (en) 2009-04-02 2010-03-29 Ejector driven steam generator start up system

Publications (2)

Publication Number Publication Date
WO2010114818A2 WO2010114818A2 (en) 2010-10-07
WO2010114818A3 true WO2010114818A3 (en) 2012-07-05

Family

ID=42825126

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/029155 WO2010114818A2 (en) 2009-04-02 2010-03-30 An ejector driven steam generator start up system

Country Status (4)

Country Link
US (1) US20100251976A1 (en)
EP (1) EP2414729A2 (en)
CN (1) CN102686944A (en)
WO (1) WO2010114818A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012167909A (en) * 2011-02-17 2012-09-06 Tlv Co Ltd Exhaust steam recovering device
WO2020035470A1 (en) * 2018-08-14 2020-02-20 Shell Internationale Research Maatschappij B.V. Gas cycle and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1003618A (en) * 1962-10-30 1965-09-08 Mitsubishi Shipbuilding & Eng Improvements in or relating to steam generators
FR1520737A (en) * 1966-03-05 1968-04-12 Steinmueller Gmbh L & C Method and devices for starting and dry starting of forced circulation boilers
DE2064705A1 (en) * 1970-02-03 1971-08-26 Sulzer Ag Process for operating a forced running steam generator in the lower Lastbe rich and forced running steam generator to carry out the process
EP0544615A1 (en) * 1991-11-28 1993-06-02 ABB Management AG Method of operating a once-through steam generator with low load recirculation

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934799A (en) * 1969-12-03 1976-01-27 Hull Francis R High-capacity steam heating system
US3612005A (en) * 1970-01-12 1971-10-12 Foster Wheeler Corp Once-through steam generator recirculating startup system
US4183331A (en) * 1972-08-23 1980-01-15 Hull Francis R Forced circulation steam generator
US4290389A (en) * 1979-09-21 1981-09-22 Combustion Engineering, Inc. Once through sliding pressure steam generator
US4487166A (en) * 1981-06-08 1984-12-11 The Babcock & Wilcox Company Start-up system for once-through boilers
US5048466A (en) * 1990-11-15 1991-09-17 The Babcock & Wilcox Company Supercritical pressure boiler with separator and recirculating pump for cycling service
BE1005793A3 (en) * 1992-05-08 1994-02-01 Cockerill Mech Ind Sa INDUCED CIRCULATION HEAT RECOVERY BOILER.
US5671771A (en) * 1995-02-27 1997-09-30 Brandel; Charles F. Hot water system
JP2002507272A (en) * 1997-06-30 2002-03-05 シーメンス アクチエンゲゼルシヤフト Waste heat boiler
US8230686B2 (en) * 2008-10-09 2012-07-31 Banas John M Start-up system mixing sphere

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1003618A (en) * 1962-10-30 1965-09-08 Mitsubishi Shipbuilding & Eng Improvements in or relating to steam generators
FR1520737A (en) * 1966-03-05 1968-04-12 Steinmueller Gmbh L & C Method and devices for starting and dry starting of forced circulation boilers
DE2064705A1 (en) * 1970-02-03 1971-08-26 Sulzer Ag Process for operating a forced running steam generator in the lower Lastbe rich and forced running steam generator to carry out the process
EP0544615A1 (en) * 1991-11-28 1993-06-02 ABB Management AG Method of operating a once-through steam generator with low load recirculation

Also Published As

Publication number Publication date
EP2414729A2 (en) 2012-02-08
WO2010114818A2 (en) 2010-10-07
US20100251976A1 (en) 2010-10-07
CN102686944A (en) 2012-09-19

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