EP0621447B1 - Chambre de combustion d'un générateur de vapeur et son procédé de fabrication - Google Patents

Chambre de combustion d'un générateur de vapeur et son procédé de fabrication Download PDF

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Publication number
EP0621447B1
EP0621447B1 EP93810292A EP93810292A EP0621447B1 EP 0621447 B1 EP0621447 B1 EP 0621447B1 EP 93810292 A EP93810292 A EP 93810292A EP 93810292 A EP93810292 A EP 93810292A EP 0621447 B1 EP0621447 B1 EP 0621447B1
Authority
EP
European Patent Office
Prior art keywords
welded
tubes
tube wall
supporting
combustion chamber
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
EP93810292A
Other languages
German (de)
English (en)
Other versions
EP0621447A1 (fr
Inventor
Stephan Amacker
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.)
Alstom SA
Original Assignee
ABB Asea Brown Boveri Ltd
Asea Brown Boveri AB
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8214959&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0621447(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ABB Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd
Priority to DE59308581T priority Critical patent/DE59308581D1/de
Priority to EP93810292A priority patent/EP0621447B1/fr
Priority to DK93810292T priority patent/DK0621447T3/da
Priority to PL94303070A priority patent/PL174280B1/pl
Priority to CN94104279A priority patent/CN1076814C/zh
Priority to KR1019940008468A priority patent/KR100310641B1/ko
Publication of EP0621447A1 publication Critical patent/EP0621447A1/fr
Publication of EP0621447B1 publication Critical patent/EP0621447B1/fr
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/62—Component parts or details of steam boilers specially adapted for steam boilers of forced-flow type
    • F22B37/64—Mounting of, or supporting arrangements for, tube units
    • F22B37/645—Mounting of, or supporting arrangements for, tube units involving upper vertically-disposed water tubes and lower horizontally- or helically disposed water tubes

Definitions

  • the invention relates to a Steam generator combustion chamber, the vertical walls of which are parallel, Pipes that rise flatly to the horizontal have gas-tight over webs or fins are welded, being distributed over the wall width several vertical straps attached to the tubes are provided, which via connecting elements with the Pipe wall are welded. Furthermore, the Invention on a method for producing such Steam generator combustion chamber.
  • each carrier tape is enlarged, i.e. in primarily the width of each strap increased will. Problems can then arise by when starting and stopping the steam generator large differences in elongation between the tubes on the one hand and the bandwidth on the other hand occur. This Differences can lead to high voltages at the Lead joints and lead to breakage.
  • This Document shows a carrier tape with a U-shaped cross section, which welded to the tubes of the tube wall by connecting elements is.
  • the connecting elements with the flanges of the strap welded.
  • the disadvantage of this solution is in that if there is a temperature difference between the pipe wall and carrier tape impeded thermal expansion in the direction of the carrier tape width occur which the weld connections between Connection element and flange of the carrier tape on the one hand and web on the other hand strain. To overuse these welds To avoid, the permitted temperature difference must go up be limited, which is tantamount to limiting the Speed when changing loads.
  • the invention has for its object a Steam generator combustion chamber of the type mentioned at the beginning to improve that with constructively simple Average permissible temperature gradient greater than can be chosen so far.
  • each carrier tape has a U-shaped cross section
  • the Web of the U-profile rests on the pipe wall
  • the support band in the middle several elongated holes distributed over its length has, in each of which a connecting element in the form of a comb-like cut sheet metal strip is arranged, both with the carrier tape as well as with the neighboring tubes and fins or fins are welded.
  • a method according to the invention for producing the combustion chamber is characterized in that on the outside of the from tubes and webs or from fin tubes welded pipe wall with the elongated holes provided straps that are placed in each slot a sheet metal strip provided with comb-like cutouts is inserted by tack welding to the pipe wall is connected that the straps are then removed and the metal strips are welded to the pipe wall, that the carrier tapes are then applied a second time to the Pipe wall are placed, the metal strips the Penetrate elongated holes, and finally under Press the straps against the pipe wall Welded connection between the metal strips and the Carrying tapes is produced.
  • the straps in an intermediate step as a template for positioning the metal strips on the pipe wall.
  • the combustion chamber 1 shows a not shown Forced-flow steam generator on a combustion chamber 1, the one rectangular or square in plan Surrounds the combustion chamber.
  • the combustion chamber 1 has tubes 2 which slightly rising to the horizontal and spiral around the firebox.
  • the Pipes 2 form the evaporator surface of the steam generator.
  • Fig. 2 and 3 are between the tubes 2 webs 7 arranged and gas-tight with the tubes welded, so that there are tube walls that the Enclose the combustion chamber gas-tight.
  • a funnel at the lower end of the combustion chamber 1 according to FIG.
  • Support tapes 3 are provided, which have a U-shaped cross section, each of which Web of the U-profile abuts the pipe wall, and the straps 3 extend vertically and even across the width of a combustion chamber wall are distributed.
  • the carrying tapes 3 have one Width of at least 200 mm. You are in below described way with the helical extending pipes 2 of the combustion chamber connected and on their upper ends in a known, not shown Way on the vertical pipe sections 2 ' attached so that the load of the combustion chamber 1 including the funnel evenly on the Transfer pipe sections 2 '.
  • elongated holes 4 are provided which have been introduced by punching or milling.
  • the Elongated holes 4 extend sheet metal strips 5, each comb-like on its edge facing the tubes 2 are cut out, so that the limitation of the Cutouts around the circumference of the neighboring pipe follows and the cutouts lie against the pipes.
  • the next to the cutouts remaining sections of the Sheet metal strips 5 lie on the webs 7 of the combustion chamber wall on.
  • the straps 3 are also on the Tubes 2 on the entire width of the band, and are on the outside with the metal strips 5 welded (weld seams 9 in Fig. 3 and 4). To do that The straps 3 do not rest against the tubes 2 hinder, the welds 8 along the Cutouts only close to the straps executed.
  • the elongated holes 4 are dimensioned somewhat longer than the length of the metal strips 5 to be assembled facilitate.
  • the described combustion chamber is manufactured as follows: First, the tubes 2 and intermediate webs 7 on a welding machine Pipe wall sections made from which then pipe walls the desired dimensions can be manufactured. On the The outside of the tube walls created in this way are then the already with the elongated holes 4 carrying straps 3 placed. Then there is a 4 in each slot Sheet metal strips 5 inserted and by means of stitching, which e.g. through the slightly longer elongated holes on the two The ends of the sheet metal strip are made to the pipe wall welded on. The previously used as a template Carrying tapes are then lifted off the pipe wall, whereupon the welding of the metal strips to the Pipe wall by means of the weld seams 8.
  • Deviating from the described embodiment can the elongated holes 4 and the metal strips 5 something be dimensioned longer so that the metal strip is three or captured four adjacent tubes.
  • the tube walls can also there are gas-tight welded fin tubes.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Combustion Of Fluid Fuel (AREA)

Claims (3)

  1. Chambre de combustion (1) d'un générateur de vapeur, dont les parois verticales présentent des tubes parallèles (2) à orientation faiblement ascendante par rapport à l'horizontale, qui sont soudés de façon étanche aux gaz par des ailettes ou des stabilisateurs (7), dans laquelle il est prévu plusieurs bandes de soutien verticales (3) appliquées aux tubes (2) et réparties sur la largeur de la paroi, qui sont soudées à la paroi tubulaire par des éléments de liaison, caractérisée en ce que chaque bande de soutien (3) présente une section transversale en forme de U, dans laquelle l'âme du profilé en U est appliquée à la paroi tubulaire, et en ce que la bande de soutien (3) présente en son milieu plusieurs trous allongés (4) répartis sur sa longueur, dans chacun desquels est disposé un élément de liaison sous la forme d'un ruban de tôle (5) découpé en peigne, qui est soudé aussi bien à la bande de soutien (3) qu'aux tubes et aux ailettes ou aux stabilisateurs (7) voisins de celle-ci.
  2. Chambre de combustion suivant la revendication 1, caractérisée en ce que la longueur de chaque trou allongé (4) est un peu plus grande que la longueur du ruban de tôle (5) associé.
  3. Procédé pour la fabrication d'une chambre de combustion (1) d'un générateur de vapeur, dont les parois verticales présentent des tubes parallèles (2) à orientation faiblement ascendante par rapport à l'horizontale, qui sont soudés de façon étanche aux gaz par des ailettes ou des stabilisateurs (7), dans laquelle il est prévu plusieurs bandes de soutien verticales (3) appliquées aux tubes (2) et réparties sur la largeur de la paroi, qui sont soudées à la paroi tubulaire par des éléments de liaison, et chaque bande de soutien (3) présente une section transversale en forme de U, dans laquelle l'âme du profilé en U est appliquée à la paroi tubulaire, et chaque bande de soutien (3) présente en son milieu plusieurs trous allongés (4) répartis sur sa longueur, dans chacun desquels est disposé un élément de liaison sous la forme d'un ruban de tôle (5) découpé en peigne, qui est soudé aussi bien à la bande de soutien (3) qu'aux tubes (2) et aux ailettes ou aux stabilisateurs (7) voisins de celle-ci, dans laquelle des bandes de soutien (3) pourvues des trous allongés (4) sont placées sur la face extérieure de la paroi tubulaire composée par soudage de tubes (2) et d'ailettes (7) ou de tubes stabilisateurs, et dans laquelle un ruban de tôle (5), qui est assemblé à la paroi tubulaire par soudage de pointage, pourvu de découpes en peigne est introduit dans chaque trou allongé (4), dans laquelle les bandes de soutien (3) sont ensuite enlevées et les rubans de tôle (5) sont fixés par soudage à la paroi tubulaire, dans laquelle ensuite les bandes de soutien (3) sont placées une deuxième fois sur la paroi tubulaire, dans laquelle les rubans de tôle (5) traversent les trous allongés (4), et dans laquelle enfin l'assemblage soudé entre les rubans de tôle (5) et les bandes de soutien (3) est réalisé avec pression des bandes de soutien (3) contre la paroi tubulaire.
EP93810292A 1993-04-21 1993-04-21 Chambre de combustion d'un générateur de vapeur et son procédé de fabrication Expired - Lifetime EP0621447B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE59308581T DE59308581D1 (de) 1993-04-21 1993-04-21 Dampferzeugerbrennkammer und Verfahren zum Herstellen derselben
EP93810292A EP0621447B1 (fr) 1993-04-21 1993-04-21 Chambre de combustion d'un générateur de vapeur et son procédé de fabrication
DK93810292T DK0621447T3 (da) 1993-04-21 1993-04-21 Dampgeneratorforbrændingskammer og fremgangsmåde til fremstilling af samme
PL94303070A PL174280B1 (pl) 1993-04-21 1994-04-20 Komora spalania wytwornicy pary
CN94104279A CN1076814C (zh) 1993-04-21 1994-04-21 蒸汽发生器的燃烧室及其制造方法
KR1019940008468A KR100310641B1 (ko) 1993-04-21 1994-04-21 스팀발생기의연소실및그제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93810292A EP0621447B1 (fr) 1993-04-21 1993-04-21 Chambre de combustion d'un générateur de vapeur et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP0621447A1 EP0621447A1 (fr) 1994-10-26
EP0621447B1 true EP0621447B1 (fr) 1998-05-20

Family

ID=8214959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93810292A Expired - Lifetime EP0621447B1 (fr) 1993-04-21 1993-04-21 Chambre de combustion d'un générateur de vapeur et son procédé de fabrication

Country Status (6)

Country Link
EP (1) EP0621447B1 (fr)
KR (1) KR100310641B1 (fr)
CN (1) CN1076814C (fr)
DE (1) DE59308581D1 (fr)
DK (1) DK0621447T3 (fr)
PL (1) PL174280B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404501B (de) * 1997-03-14 1998-12-28 Austrian Energy & Environment Versteifungskonstruktion

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH470629A (de) * 1967-02-07 1969-03-31 Sulzer Ag Zwangdurchlaufdampferzeuger
DE2621189C3 (de) * 1976-05-13 1980-02-21 Balcke-Duerr Ag, 4030 Ratingen Vorrichtung zur Aufhängung einer Rohrwand
CH634905A5 (de) * 1978-12-20 1983-02-28 Sulzer Ag Dampferzeugerwand.
DE2941623A1 (de) * 1979-10-13 1981-04-23 Deutsche Babcock Ag, 4200 Oberhausen Vorrichtung zur aufhaengung einer rohrwand
FR2474145A1 (fr) * 1980-01-18 1981-07-24 Stein Industrie Dispositif de suspension pour tubes de chaudiere
JPS61211606A (ja) * 1985-01-04 1986-09-19 ザ・バブコツク・アンド・ウイルコツクス・カンパニ− 炉の囲い管壁

Also Published As

Publication number Publication date
CN1096863A (zh) 1994-12-28
KR100310641B1 (ko) 2001-12-28
PL174280B1 (pl) 1998-07-31
CN1076814C (zh) 2001-12-26
DE59308581D1 (de) 1998-06-25
DK0621447T3 (da) 1999-03-15
EP0621447A1 (fr) 1994-10-26

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