EP0068301B2 - Dampferzeuger mit zirkulierender atmosphärischer oder druckaufgeladener Wirbelschichtfeuerung - Google Patents

Dampferzeuger mit zirkulierender atmosphärischer oder druckaufgeladener Wirbelschichtfeuerung Download PDF

Info

Publication number
EP0068301B2
EP0068301B2 EP82105260A EP82105260A EP0068301B2 EP 0068301 B2 EP0068301 B2 EP 0068301B2 EP 82105260 A EP82105260 A EP 82105260A EP 82105260 A EP82105260 A EP 82105260A EP 0068301 B2 EP0068301 B2 EP 0068301B2
Authority
EP
European Patent Office
Prior art keywords
steam generator
evaporator
fluidized bed
heating surface
generator according
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 - Lifetime
Application number
EP82105260A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0068301B1 (de
EP0068301A1 (de
Inventor
Karl-Heinz Maintok
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.)
Deutsche Babcock Anlagen AG
Original Assignee
Deutsche Babcock Anlagen AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6135797&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0068301(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Deutsche Babcock Anlagen AG filed Critical Deutsche Babcock Anlagen AG
Priority to AT82105260T priority Critical patent/ATE10673T1/de
Publication of EP0068301A1 publication Critical patent/EP0068301A1/de
Application granted granted Critical
Publication of EP0068301B1 publication Critical patent/EP0068301B1/de
Publication of EP0068301B2 publication Critical patent/EP0068301B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
    • F22B31/0084—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed with recirculation of separated solids or with cooling of the bed particles outside the combustion bed

Definitions

  • the invention relates to a steam generator with circulating atmospheric or pressure-charged fluidized bed combustion consisting of a fluidized bed combustion chamber, fluid bed cooler and waste heat steam generator, in which feed water preheater, evaporator, superheater and reheater heating surfaces are arranged, the entire evaporator heating surface being at least one of which is distributed over several partial surfaces Fluid bed cooler and is arranged in the vortex combustion chamber.
  • Methods for performing processes in a circulating atmospheric fluidized bed are e.g. known from DE-B No. 2539546 and DE-A No. 2624302. They offer the advantage that in addition to the combustion smoke gases, a second heat transfer medium, the internally and externally circulating bed material, is available for heat transfer purposes.
  • the entire evaporator heating surface is in the vortex combustion chamber, in which the superheater, the intermediate superheater and the feed water preheater are connected to the vortex combustion chamber on the gas side, as well as in the fluid bed coolers (the other superheaters) 60), 1980, pp. 366-376, picture 12).
  • the invention is based on a steam generator of the type mentioned at the outset. It is based on the task of improving this steam generator by means of a special design of the evaporator which permits advantageous regulation of the steam generator.
  • the heating surfaces of the steam generator according to the invention can be flowed through according to the natural circulation, forced circulation or forced circulation principle.
  • the design and distribution of the evaporator heating surfaces is carried out in such a way that the cooling and the stability of the flow are guaranteed and that temperature imbalances are avoided by unfavorable distribution of the water / steam mixture.
  • the advantages associated with the invention are that the lowest partial loads of the steam generator are possible.
  • the steam generator can be regulated well by dividing the entire evaporator heating surface into two or more heating surfaces. Any deviations in the heat absorption of the evaporator heating surfaces can be easily corrected either by subsequently changing the solids supply to the fluid bed cooler or by enlarging or reducing the easily accessible heating surfaces in the fluid bed cooler.
  • FIG. 1 and 2 show the system diagram of a steam generator according to the invention with circulating fluidized bed combustion.
  • the steam generator comprises a vortex combustion chamber 1, to which a coal / lime mixture is supplied via a line 2 and primary combustion air is supplied via floor nozzles 3 or lateral injection.
  • the coal / lime mixture can also be blown in directly by means of a primary air stream.
  • secondary combustion air is added via side nozzles 18.
  • the solids discharged with the gas from the vortex combustion chamber 1, which is essentially ash, are separated in a recycle cyclone 4.
  • the return cyclone 4 is followed by two parallel solid lines 5 and 6, which open into the fluidized bed combustion chamber 1.
  • a fluid bed cooler 7 is provided in the one solid line 6, and a control element 8 is arranged in front of the solid inlet.
  • the separated solids are fed to the fluidized-bed combustion chamber 1 either directly via the solids line 5 or via the fluidized bed cooler 7. Via the control member 8, the k through the fluidized bed 5 ühler flowing solid amount can be adjusted.
  • the gas emerging from the recycle cyclone 4 is fed to a heat recovery steam generator 9 after flowing through a further separator (not shown).
  • feed water preheaters 10 and superheaters 11 are arranged as secondary heating surfaces.
  • the total evaporator heating surface of the steam generator is distributed over two partial surfaces, one of which is housed as a heating surface 13 in the fluidized bed cooler 7 and the other as a heating surface 12 in the fluidized bed combustion chamber 1.
  • This heating surface 12 can be designed as a bundle heating surface which is immersed in the fluidized bed.
  • the heating surface 12 can be represented by the cooled tube walls of the swirl combustion chamber.
  • the heating surface 12 arranged in the vortex combustion chamber 1 is switched as the first evaporator and with the feed water preheater 10 connected.
  • the size of the evaporator partial heating surface, through which the heating surface 12 flows, is designed for the required low load of the steam generator in such a way that cooling and stability are guaranteed, and temperature imbalances due to unfavorable distribution of the water / steam mixture in the tubes of the heating surface 12 are avoided .
  • the necessary evaporation energy is transmitted solely via the heating surface 12.
  • the heat transfer surface necessary for full load beyond the low load is accommodated as heating surface 13 in the fluid bed cooler 7.
  • the heating surface 13 can be designed as a tube bundle or as a gas-tight welded tube wall. The size of this heating surface 13 can be reduced or enlarged in a simple manner by removing or adding a heating surface.
  • the heating surface 13 flows through in the fluidized bed cooler 7 without heat being transferred.
  • bypass lines 19 the evaporator heating surfaces can be modified independently of one another.
  • the steam generated in the heating surface 12 of the fluidized bed combustion chamber 1 reaches the superheater 11 after flowing through the heating surface 13 of the fluidized bed cooler 7. The steam thus overheated is fed to a high-pressure turbine, not shown.
  • the fluidized bed cooler 7 is provided in its bottom with a connection 14 for the supply of a fluidizing gas.
  • the solid entering the fluid bed cooler 7 when the control element 8 is open is fluidized by the cas and can transfer its heat to the heating surface 13.
  • the heat to be transferred to the heating surface 13 is regulated by the amount of the solid matter in such a way that the amount of solid matter increases as the load on the steam generator increases and decreases as the load decreases. This means that all areas between low load and full load can be set.
  • the heating surfaces 12, 13 of the evaporator are connected in series. This series connection is used when the steam generator is operated according to the forced flow principle.
  • FIG. 2 also shows the case in which a further partial evaporator heating surface is provided as heating surface 20 in the waste heat steam generator 9.
  • This possibility is particularly considered when a low-calorific coal is burned in the swirl combustion chamber 1.
  • Another recycling cyclone 15 with solid lines 5 and 6 is arranged symmetrically to the recycling cyclone 4 described.
  • the solid separated in the further recycle cyclone 15 is fed to a second fluid bed cooler 16, which is operated independently of the fluid bed cooler 7 described.
  • the heating surfaces can be arranged for a single or double reheat 17.
  • the temperature of the reheated steam is controlled solely by the amount of solid supplied. The temperature control required by conventional steam generators by injecting water into the steam can thus be dispensed with.
  • the invention has been explained on the basis of a circulating atmospheric fluidized bed combustion. However, it can also be used for a circulating, pressure-charged fluidized bed furnace.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Detergent Compositions (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
EP82105260A 1981-07-01 1982-06-16 Dampferzeuger mit zirkulierender atmosphärischer oder druckaufgeladener Wirbelschichtfeuerung Expired - Lifetime EP0068301B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82105260T ATE10673T1 (de) 1981-07-01 1982-06-16 Dampferzeuger mit zirkulierender atmosphaerischer oder druckaufgeladener wirbelschichtfeuerung sowie verfahren zu seiner regelung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3125849 1981-07-01
DE19813125849 DE3125849A1 (de) 1981-07-01 1981-07-01 Dampferzeuger mit zirkulierender atmosphaerischer oder druckaufgeladener wirbelschichtfeuerung sowie verfahren zu seiner regelung

Publications (3)

Publication Number Publication Date
EP0068301A1 EP0068301A1 (de) 1983-01-05
EP0068301B1 EP0068301B1 (de) 1984-12-05
EP0068301B2 true EP0068301B2 (de) 1991-09-04

Family

ID=6135797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105260A Expired - Lifetime EP0068301B2 (de) 1981-07-01 1982-06-16 Dampferzeuger mit zirkulierender atmosphärischer oder druckaufgeladener Wirbelschichtfeuerung

Country Status (8)

Country Link
US (1) US4473032A (xx)
EP (1) EP0068301B2 (xx)
AT (1) ATE10673T1 (xx)
AU (1) AU553068B2 (xx)
CA (1) CA1190815A (xx)
DE (2) DE3125849A1 (xx)
DK (1) DK150166C (xx)
ZA (1) ZA824034B (xx)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672918A (en) * 1984-05-25 1987-06-16 A. Ahlstrom Corporation Circulating fluidized bed reactor temperature control
DE3688007D1 (de) * 1985-06-12 1993-04-22 Metallgesellschaft Ag Verbrennungsvorrichtung mit zirkulierender wirbelschicht.
US4665864A (en) * 1986-07-14 1987-05-19 Foster Wheeler Energy Corporation Steam generator and method of operating a steam generator utilizing separate fluid and combined gas flow circuits
DE3625373A1 (de) * 1986-07-26 1988-02-04 Steinmueller Gmbh L & C Dampferzeuger mit zirkulierender atmosphaerischer oder druckaufgeladener wirbelschichtfeuerung, sowie verfahren zu seiner regelung
US4709663A (en) * 1986-12-09 1987-12-01 Riley Stoker Corporation Flow control device for solid particulate material
DE3642396A1 (de) * 1986-12-11 1988-06-16 Siemens Ag Dampferzeugeranlage mit einer zirkulierenden wirbelschicht
SE457015B (sv) * 1987-03-25 1988-11-21 Abb Stal Ab Kraftanlaeggning med foerbraenning i fluidiserad baedd
US4761131A (en) * 1987-04-27 1988-08-02 Foster Wheeler Corporation Fluidized bed flyash reinjection system
US4733621A (en) * 1987-05-08 1988-03-29 A. Ahlstrom Corporation Apparatus and methods for operating a fluidized bed reactor
US4777889A (en) * 1987-05-22 1988-10-18 Smith Richard D Fluidized bed mass burner for solid waste
JPH0629652B2 (ja) * 1987-07-13 1994-04-20 株式会社荏原製作所 流動床ボイラにおける燃焼制御装置
DE3800863A1 (de) * 1988-01-14 1989-07-27 Metallgesellschaft Ag Verfahren zum regeln der wasserdampferzeugung in einer verbrennungsanlage
DK120288D0 (da) * 1988-03-04 1988-03-04 Aalborg Boilers Fluidbed forbraendigsreaktor samt fremgangsmaade til drift af en fluidbed forbraendingsreaktor
JPH0642941B2 (ja) * 1988-11-02 1994-06-08 フォスター・ホイーラー・エナージイ・コーポレイション 一体型再循環熱交換器を有する流動床反応装置及びその操作方法
AU639437B2 (en) * 1989-01-24 1993-07-29 Foster Wheeler Energia Oy System and method for reheat steam temperature control in circulating fluidized bed boilers
US4947804A (en) * 1989-07-28 1990-08-14 Foster Wheeler Energy Corporation Fluidized bed steam generation system and method having an external heat exchanger
SE9000603D0 (sv) * 1990-02-20 1990-02-20 Abb Stal Ab Saett och anordning foer att reglera effektuttag fraan foerbraenning i virvelbaedd
US5273000A (en) * 1992-12-30 1993-12-28 Combustion Engineering, Inc. Reheat steam temperature control in a circulating fluidized bed steam generator
FI945737A (fi) * 1994-12-05 1996-06-06 Ahlstroem Oy Menetelmä höyryn tulistuslämpötilan säätämiseksi kiertopetityyppisessä kaasunjäähdyttimessä
FI970438A0 (fi) 1996-12-19 1997-02-03 Kvaerner Pulping Oy Foerfarande i panna, saerskilt i sodapanna
US5784975A (en) * 1996-12-23 1998-07-28 Combustion Engineering, Inc. Control scheme for large circulating fluid bed steam generators (CFB)
FR2767379B1 (fr) * 1997-08-18 1999-11-12 Gec Alsthom Stein Ind Chaudiere a lit fluidise dense externe
FI20010676A0 (fi) * 2001-04-02 2001-04-02 Einco Oy CSC-reaktori
EP3840871A1 (en) 2018-08-24 2021-06-30 Sumitomo SHI FW Energia Oy An arrangement for and a method of controlling flow of solid particles and a fluidized bed reactor
CN114688546B (zh) * 2021-12-29 2023-01-10 浙江大学 一种可实现床温汽温双调的侧向布风的热灰回送流量控制装置及方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682139A (en) * 1971-06-15 1972-08-08 Paul A B Sahm Anti-pollution system for solid fuel-fired steam generating power plants
US4165717A (en) * 1975-09-05 1979-08-28 Metallgesellschaft Aktiengesellschaft Process for burning carbonaceous materials
DE2624302A1 (de) * 1976-05-31 1977-12-22 Metallgesellschaft Ag Verfahren zur durchfuehrung exothermer prozesse
CH637184A5 (de) * 1979-04-12 1983-07-15 Sulzer Ag Kombinierte waermekraftanlage mit einer gasturbinengruppe.

Also Published As

Publication number Publication date
EP0068301B1 (de) 1984-12-05
EP0068301A1 (de) 1983-01-05
DK150166C (da) 1987-11-09
DE3125849A1 (de) 1983-01-20
DE3125849C2 (xx) 1988-10-27
ATE10673T1 (de) 1984-12-15
DK294282A (da) 1983-01-02
CA1190815A (en) 1985-07-23
AU8504482A (en) 1983-01-06
AU553068B2 (en) 1986-07-03
ZA824034B (en) 1983-04-27
DK150166B (da) 1986-12-22
DE3261455D1 (en) 1985-01-17
US4473032A (en) 1984-09-25

Similar Documents

Publication Publication Date Title
EP0068301B2 (de) Dampferzeuger mit zirkulierender atmosphärischer oder druckaufgeladener Wirbelschichtfeuerung
EP0206066B1 (de) Verbrennungsvorrichtung mit zirkulierender Wirbelschicht
EP0591163B1 (de) Kombinierte gas- und dampfturbinenanlage
EP0037858B1 (de) Dampfkraftwerk mit druckgefeuertem Dampferzeuger mit Fliessbettfeuerung
DE3517987A1 (de) Verfahren und vorrichtung zur steuerung der funktion eines wirbelschichtreaktors mit zirkulierender wirbelschicht
DE3625373A1 (de) Dampferzeuger mit zirkulierender atmosphaerischer oder druckaufgeladener wirbelschichtfeuerung, sowie verfahren zu seiner regelung
EP0339185B1 (de) Dampferzeuger mit einer Verbrennung von Braunkohle mit unterschiedlich zusammengesetzter Braunkohle
EP0474622A1 (de) Verfahren zum Anfahren eines Wärmetauschersystems zur Dampferzeugung sowie Wärmetauschersystem zur Dampferzeugung
EP0086261A1 (de) Kombinierter Gas-/Dampfturbinenprozess
EP0981681B1 (de) Gas- und dampfturbinenanlage und verfahren zur kühlung des kühlmittels der gasturbine einer derartigen anlage
DD296542A5 (de) Feuerung, insbesondere wirbelschichtfeuerung
DD291803A5 (de) Anlage und verfahren zur regelung der temperatur von zwischenueberhitzungsdampf bei dampfkesseln mit zirkulierender wirbelschicht
EP0840837B1 (de) Verfahren zum betreiben einer gas- und dampfturbinenanlage sowie danach arbeitende anlage
EP0098481B1 (de) Verfahren zum Erzeugen von elektrischer Energie mit einem mit einer Wirbelschichtfeuerung ausgerüsteten Gasturbinen-Dampfkraftwerk
EP0274637B1 (de) Dampferzeugeranlage mit einer zirkulierenden Wirbelschicht
DE3142993A1 (de) Verfahren und vorrichtung zum vorheizen einer druck-wirbelbett-brennkammer und eines reinigungs-untersystems in einer gasturbinen-kraftwerksanlage
DE3644083A1 (de) Dampferzeuger
EP0050687A1 (de) Heissluftturbinen-Dampfkraftanlage
DE3519159A1 (de) Wasserrohr - dampferzeuger bzw. wasserrohr - heisswassererzeuger
DE3617364A1 (de) Kombiniertes gas- und dampfturbinenkraftwerk mit aufgeladener wirbelschichtfeuerung und kohlevergasung
EP0035783B1 (de) Verfahren und Vorrichtung zur Strom- und Wärmeerzeugung aus Brennstoffen
DE2916345A1 (de) Verfahren zur teillaststeuerung von wirbelbettfeuerungen und anordnung zur durchfuehrung des verfahrens
DE3638766C2 (xx)
DE3511877A1 (de) Durchlaufdampferzeuger
EP0784186B1 (de) Dampferzeuger mit durckaufgeladener zirkulierender Wirbelschichtfeuerung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19830127

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT DE FR GB IT NL SE

REF Corresponds to:

Ref document number: 10673

Country of ref document: AT

Date of ref document: 19841215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3261455

Country of ref document: DE

Date of ref document: 19850117

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: METALLGESELLSCHAFT AG

Effective date: 19850903

NLR1 Nl: opposition has been filed with the epo

Opponent name: METALLGESELLSCHAFT AG

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19910904

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT DE FR GB IT NL SE

ET3 Fr: translation filed ** decision concerning opposition
NLR2 Nl: decision of opposition
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

NLR3 Nl: receipt of modified translations in the netherlands language after an opposition procedure
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19930602

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930630

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19940616

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19950101

EAL Se: european patent in force in sweden

Ref document number: 82105260.2

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000524

Year of fee payment: 19

Ref country code: DE

Payment date: 20000524

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20000526

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000606

Year of fee payment: 19

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010616

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010617

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010630

EUG Se: european patent has lapsed

Ref document number: 82105260.2

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010616

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020228

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO