EP0058356A1 - Speisewasservorwärmteile eines Dampfkessels und Speisewasservorwärmer - Google Patents

Speisewasservorwärmteile eines Dampfkessels und Speisewasservorwärmer Download PDF

Info

Publication number
EP0058356A1
EP0058356A1 EP82100845A EP82100845A EP0058356A1 EP 0058356 A1 EP0058356 A1 EP 0058356A1 EP 82100845 A EP82100845 A EP 82100845A EP 82100845 A EP82100845 A EP 82100845A EP 0058356 A1 EP0058356 A1 EP 0058356A1
Authority
EP
European Patent Office
Prior art keywords
steam
tubes
bundle
section
water heater
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
EP82100845A
Other languages
English (en)
French (fr)
Other versions
EP0058356B1 (de
Inventor
Bernard Andrieux
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.)
Delas Weir SA
Original Assignee
Delas Weir 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9254927&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0058356(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Delas Weir SA filed Critical Delas Weir SA
Publication of EP0058356A1 publication Critical patent/EP0058356A1/de
Application granted granted Critical
Publication of EP0058356B1 publication Critical patent/EP0058356B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/32—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines
    • 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
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
    • F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines

Definitions

  • the present invention relates to a feed water heater for a steam production boiler of an electrical energy production installation.
  • steam power plants include a steam condenser which receives and condenses the exhaust steam from the low pressure turbine and heaters placed on the boiler's feed water circuit, these being supplied by steam drawn from the turbine at different pressure levels.
  • the first low pressure cylindrical heaters are most often placed in the sleeve of the condenser which connects the exhaust pipes of the turbine to the body of the condenser which contains the tubular condensing bundle .
  • the heaters are installed horizontally inside the condenser sleeve and perpendicular to the axis of the turbine and are supplied with extracting steam by pipes directly connecting the turbine to said heaters, pipes which are also confined inside- of the cuff.
  • the shape of the heaters, generally cylindrical, and the arrangement of the withdrawal conduits supplying the heaters means that the assembly remains relatively bulky and does not allow good passage of the exhaust steam from the turbine to the tube bundle of the condenser, in particular because of the draw-off lines constituting obstacles on the passage of this vapor and therefore increase the pressure losses.
  • the object of the present invention is to overcome these drawbacks and relates to a feed water heater element for a steam production boiler of an electrical energy production installation comprising an alternator driven by a turbine comprising at least one low pressure body, said heater element consisting of a bundle of tubes and being located inside a cuff connecting said low pressure body to the con vapor denser located under this low pressure body, the tubes of said heater element being supplied with water from the condenser extraction circuit and the outer surface of the tubes being supplied with steam from a withdrawal of the low pressure body, the bundle of tube being substantially horizontal and perpendicular to the axis of the turbine, the bundle of tubes having a narrow and elongated section whose length is arranged substantially vertically, the bundle of tubes being enclosed in an envelope channeling the vapor around the bundle and receiving steam withdrawal pipes, characterized in that said envelope has, in the connection region of the steam supply pipes, one section of which one of the sides deviates progressively from the bottom to the top of the corresponding side of one of the two substantially vertical sides of the narrow
  • the supply of steam through the upper part of the envelope is carried out between said side of the envelope and the corresponding side of the narrow and elongated section of the tube bundle.
  • the invention also relates to a water heater characterized in that it comprises two separate water heater elements as above, placed at the same level and supplied with withdrawal steam of the same thermodynamic level at piping means from a pressure base body with central intake and two symmetrical exhausts.
  • the two said separate water heater elements are supplied with withdrawal steam of a first thermodynamic level, a second heater being located outside of said sleeve and being supplied with steam. withdrawal of a second thermodynamic level, by pipes passing between the two said elements.
  • the withdrawal pipes connect the said low pressure body on the upper face of said casing in a substantially rectilinear manner, and the section of the casing and tube bundle assembly is slightly inclined relative to the vertical so as to facilitate the flow of condensate on the side opposite to the steam supply.
  • the water heater element comprises a bundle 1 of tubes which, in the assembly described, are tubes bent in a U shape and therefore whose inlet 2 and outlet 3 , as seen in Figure 3 are located on the same side, and a water box 4 realizing the separation between the inlet 2 and the outlet 3.
  • the section of the bundle 1 of tubes is narrow and elongated, substantially rectangular, the greater length being placed vertically.
  • the tubes are supplied with water by the condenser extraction circuit and the outside wall of the tubes is supplied with withdrawal steam by withdrawal pipes.
  • the bundle 1 of tubes is enclosed in an envelope 6 which channels the vapor around the bundle of tubes. This envelope 6 does not have the same section over the entire length of the heater.
  • the latter In the region of the connection of the withdrawal pipes 5 with the casing, the latter has a section as shown by the reference 7 in FIG. 1, that is to say essentially such that one of the sides of the envelope, the one on the right in the figure, progressively departs from the bottom upwards, on the corresponding side of the section of the bundle 1 of tubes. Beyond the region of connection of the withdrawal pipes 5 with the casing 6, this has a section 8 which has the same shape, according to a slightly larger homothetic ratio than the cross-section of the tube bundle.
  • the admission of steam via the withdrawal pipes 5 takes place from above the part 7 of the envelope 6 between the sloping wall of this part 7 and the bundle 1 of tubes.
  • draw-off level S1 comprising two elements A and B similar to the element in FIG. 1. These elements A and B are supplied by draw-off pipes 5 coming from draw-offs similarly thermodynamic level S1. Each element A or B is supplied by two pipes 5 as shown in FIG. 4. These elements are arranged perpendicular to the axis 10 of the turbine.
  • the figures also show pipes 22 for drawing off a second thermodynamic level S2 passing between the elements A and B but in this case, these pipes lead to a heater (not shown) placed outside the sleeve 15.
  • the very shape of the bundle, narrow and elongated, leaves a large space for the passage of exhaust vapor, all the more so since the bulge of the envelope 6 at 7 exists only over a part only of the length of the bundle. Furthermore, the internal supply of the withdrawal steam heater is excellent without it being necessary to extend this bulge 7 over the entire length.
EP82100845A 1981-02-06 1982-02-05 Speisewasservorwärmteile eines Dampfkessels und Speisewasservorwärmer Expired EP0058356B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8102382 1981-02-06
FR8102382A FR2499677B1 (fr) 1981-02-06 1981-02-06 Element de rechauffeur d'eau d'alimentation d'une chaudiere et rechauffeur d'eau

Publications (2)

Publication Number Publication Date
EP0058356A1 true EP0058356A1 (de) 1982-08-25
EP0058356B1 EP0058356B1 (de) 1984-06-13

Family

ID=9254927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100845A Expired EP0058356B1 (de) 1981-02-06 1982-02-05 Speisewasservorwärmteile eines Dampfkessels und Speisewasservorwärmer

Country Status (4)

Country Link
US (1) US4433546A (de)
EP (1) EP0058356B1 (de)
DE (1) DE3260224D1 (de)
FR (1) FR2499677B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2651276B1 (fr) * 1989-08-28 1991-10-25 Alsthom Gec Condenseur en beton pour turbine a echappement axial et turbine munie d'un tel condenseur.
SE501307C2 (sv) * 1993-05-19 1995-01-09 Abb Stal Ab Sätt och anordning för fuktavskiljning vid lågtrycksturbin
DE10033691A1 (de) * 2000-07-11 2002-01-24 Alstom Power Nv Kondensatorhals zwischen einer Dampfturbine und einem Kondensator

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR465428A (fr) * 1913-08-30 1914-04-16 Knorr Bremse Ag Réchauffeur pour eau d'alimentation de chaudière
DE325567C (de) * 1916-02-12 1920-09-15 Vickers Electrical Co Ltd Speisewasservorwaermer-Anordnung fuer Kondensationsdampfturbinen
DE549433C (de) * 1929-04-17 1932-04-27 Asea Ab Kondensationsdampfturbine mit zwei Kondensatoren und Vorwaermer
US3406749A (en) * 1967-02-02 1968-10-22 Ingersoll Rand Co Steam manifold for condensers
DE1813939A1 (de) * 1968-12-11 1970-06-25 Gutehoffnungshuette Sterkrade Waermeaustauscher,insbesondere Speisewasser-Vorwaermer
DE2358349A1 (de) * 1973-04-13 1974-10-31 Hamon Sobelco Sa Zweistufiger niederdruckvorwaermer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR465428A (fr) * 1913-08-30 1914-04-16 Knorr Bremse Ag Réchauffeur pour eau d'alimentation de chaudière
DE325567C (de) * 1916-02-12 1920-09-15 Vickers Electrical Co Ltd Speisewasservorwaermer-Anordnung fuer Kondensationsdampfturbinen
DE549433C (de) * 1929-04-17 1932-04-27 Asea Ab Kondensationsdampfturbine mit zwei Kondensatoren und Vorwaermer
US3406749A (en) * 1967-02-02 1968-10-22 Ingersoll Rand Co Steam manifold for condensers
DE1813939A1 (de) * 1968-12-11 1970-06-25 Gutehoffnungshuette Sterkrade Waermeaustauscher,insbesondere Speisewasser-Vorwaermer
DE2358349A1 (de) * 1973-04-13 1974-10-31 Hamon Sobelco Sa Zweistufiger niederdruckvorwaermer

Also Published As

Publication number Publication date
DE3260224D1 (en) 1984-07-19
FR2499677A1 (fr) 1982-08-13
EP0058356B1 (de) 1984-06-13
US4433546A (en) 1984-02-28
FR2499677B1 (fr) 1985-09-27

Similar Documents

Publication Publication Date Title
EP0147304B1 (de) Natrium-Wasser-Dampferzeuger mit geraden konzentrischen Rohren und Gaszirkulation in dem ringförmigen Raum
EP0058356B1 (de) Speisewasservorwärmteile eines Dampfkessels und Speisewasservorwärmer
FR2811800A1 (fr) Reacteur nucleaire refroidi par eau a l'etat surcritique et centrale le comportant
EP0133604A1 (de) Kessel mit spiralförmigem Wärmetauscher
FR2558245A1 (fr) Installation de chauffage solaire
EP0195443A1 (de) Einrichtung zum Trocknen und Überhitzen von Dampf durch Wärmetausch
FR2521277A1 (fr) Echangeur de chaleur, en particulier pour un circuit de refroidissement de moteur a combustion interne
EP0898115B2 (de) Kessel mit externer dichter Wirbelschicht
CH621616A5 (de)
FR2700383A1 (fr) Echangeur de chaleur dans lequel l'alimentation en fluide secondaire s'effectue en partie haute par un boîtier d'alimentation ouvert vers le bas.
FR2473688A1 (fr) Chaudiere solaire
EP0032088A2 (de) Vorrichtung zum Trennen von Flüssigkeit und Dampf aus einem Fluid-Strom und Dampferzeuger mit solchen Vorrichtungen
EP0192918B1 (de) Vorwärmer für Umwandlungsanlage von thermischer Energie
FR2605714A1 (fr) Chaudiere a air humide
EP0131670B1 (de) Speisewasservorwärmer mit Enthitzer insbesondere für thermische Kraftanlage
FR2602313A1 (fr) Appareil recuperateur de chaleur pour installations de chauffage
FR2807152A1 (fr) Echangeur de chaleur a plaques
FR2585114A1 (fr) Capteur d'energie solaire a changement de phase
FR2637678A1 (fr) Repartiteur thermique a caloducs
EP0216667B1 (de) Rückhaltevorrichtung für eine Flüssigkeit um zu verhindern, dass eine offene, im wesentlichen horizontale Leitung beim Unterschreiten einer bestimmten Zuflussmenge leer läuft
FR2573182A1 (fr) Chaudiere de chauffage a condensat
BE379139A (de)
FR2549935A1 (fr) Raccord de sortie vapeur pour generateur de vapeur
BE348627A (de)
FR2492078A1 (fr) Condenseur basse temperature de grande puissance

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): BE CH DE FR GB IT SE

17P Request for examination filed

Effective date: 19830210

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI SE

REF Corresponds to:

Ref document number: 3260224

Country of ref document: DE

Date of ref document: 19840719

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: KRAFTWERK UNION AKTIENGESELLSCHAFT

Effective date: 19850312

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

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

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19860112

ITTA It: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 82100845.5

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

Ref country code: GB

Payment date: 20010112

Year of fee payment: 20

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

Ref country code: CH

Payment date: 20010115

Year of fee payment: 20

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

Ref country code: DE

Payment date: 20010205

Year of fee payment: 20

Ref country code: FR

Payment date: 20010205

Year of fee payment: 20

Ref country code: SE

Payment date: 20010205

Year of fee payment: 20

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

Ref country code: BE

Payment date: 20010213

Year of fee payment: 20

BE20 Be: patent expired

Free format text: 20020205 *DELAS-WEIR

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: LI

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20020204

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20020204

Ref country code: CH

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20020204

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: 20020206

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Effective date: 20020204

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 82100845.5

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO