CH268030A - Combustion chamber. - Google Patents

Combustion chamber.

Info

Publication number
CH268030A
CH268030A CH268030DA CH268030A CH 268030 A CH268030 A CH 268030A CH 268030D A CH268030D A CH 268030DA CH 268030 A CH268030 A CH 268030A
Authority
CH
Switzerland
Prior art keywords
combustion chamber
ribs
wall
chamber according
partition
Prior art date
Application number
Other languages
French (fr)
Inventor
Limited The Anglo-Saxo Company
Original Assignee
Anglo Saxon Petroleum Co
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 Anglo Saxon Petroleum Co filed Critical Anglo Saxon Petroleum Co
Publication of CH268030A publication Critical patent/CH268030A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23MCASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00Casings; Linings; Walls
    • F23M5/08Cooling thereof; Tube walls
    • F23M5/085Cooling thereof; Tube walls using air or other gas as the cooling medium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23RGENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/007Continuous combustion chambers using liquid or gaseous fuel constructed mainly of ceramic components
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S60/00Power plants
    • Y10S60/909Reaction motor or component composed of specific material
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49316Impeller making
    • Y10T29/4932Turbomachine making

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Description

  

  Chambre de combustion.    L'invention a pour objet une     chambre    de  combustion, par exemple une chambre de  combustion de turbine à gaz.  



  Cette chambre de     combustion    est caracté  risée selon     l'invention    en ce que l'en  ceinte de combustion est limitée par une  paroi     eornprenarrt    une cloison présentant  du côté intérieur des nervures de fa  çon à former des logements dans lesquels  sont placées des bandes de matière réfrac  taire, ces     nervures    étant creuses et engageant  les bandes de matière réfractaire de façon  à     retenir        eelles-ei    dans leurs logements, les ner  vures     présentant    chacune au moins un orifice  par lequel de l'air de refroidissement passe  dans l'enceinte de     combustion,

      et la cloison  susmentionnée étant munie de trous qui     com-          muniquerit    avec l'intérieur des nervures       creuses.     



  Le     dessin    représente     selrématiquement,    à  titre     (l'exeiyrl)le,    deux formes d'exécution de la  chambre de     combustion    selon     l'invention,     ainsi qu'une variante de détail.  



  La     fig.    1 montre, en coupe     transversale,     une     partie    d'une première forme d'exécution.  La     fig.    2 montre l'aspect intérieur de l'en  ceinte de combustion de cette forme d'exécu  tion.  



  La     fig.    3 montre, en coupe transversale,  une partie d'une deuxième forme d'exécution,  et    la     fig.    4 montre, en coupe     transversale,     une nervure d'une variante de ces formes  d'exécution.  



  Dans la forme d'exécution représentée à  la     fig.    1, une chemise     evlindrique    1     entoure     un espace de section annulaire 2 pour le pas  sage de l'air de     refroidissement,    cet. espace  entourant la paroi cylindrique de l'enceinte  de     combustion.    Cette paroi comprend une cloi  son cylindrique de révolution en métal 3 pré  sentant du, côté intérieur des nervures métal  liques 4 également espacées et soudées ou réu  nies autrement à la cloison 3.

   Dans les loge  ments formés par la cloison 3 et les nervures  4 sont placées des bandes de matière réfrac  taire 5, par exemple à base de zircone ou  de carbure de silicium, qui s'étendent vers  l'intérieur de l'enceinte de     combustion    au de  là des bords libres des nervures. Les nervures  4 sont disposées suivant des plans radiaux et  ont en section transversale la forme de coins  allant en     s'élargissant    vers l'intérieur de l'en  ceinte de combustion. De cette façon, les ban  des 5, qui ont une section     trapézoïdale,    sont  retenues dans leurs     logements    par     engagement     avec les nervures 4.

   Ces nervures 4 sont creu  ses et     présentent    des troue d'air 6 espacés con  venablement le long de leur bord libre. Des  trous d'air dans la cloison 3 permettent à l'air  de passer dans l'enceinte de combustion par la  voie des nervures creuses 4, cet air provenant  de l'espace de section annulaire 2.

        Dans la forme d'exécution de     1a        fig.    3, la  paroi     limitant    l'enceinte de     combustion    est  constituée comme     dans    la chambre de     coin-          bastion    de la     fig.    1,     sauf    que les bandes de  matière réfractaire 5 ne débordent pas les ner  vures 4 et     qu'un    revêtement cylindrique 8 en  métal résistant aux     températures    élevées, par  exemple du molybdène ou un de ses alliages,  s'appuie     saur    les surfaces internes de ces ban  des 5.

   L'espace entre la paroi limitant l'en  ceinte de combustion et la     chemise    1 est     sub-          divisé    en     deux    parties de section     annulaire     coaxiales 9 et 10     au,    moyen d'un écran cylin  drique 11 de protection contre les     radiations.          Dansî    l'espace 9 font saillie un     certain    nombre  d'ailettes de refroidissement 12, disposées     ra-          dialement,    espacées convenablement et fixées  à la cloison 3 de la paroi     limitant    l'enceinte de  combustion par soudure ou autrement.

   De  l'air de refroidissement provenant de l'es  pace 9 pénètre dans les nervures creuses 4 par  les trous 7 de la cloison 3 et s'échappe dans  l'enceinte de combustion par les trous 6 de  ces     nervures    qui     correspondent    à des trous  du revêtement 8.  



       Ainsi    que le montre la     fig.    4, qui se rap  porte à une variante des chambres de com  bustion des     fig.    1 à 3, les     nervures    4 pour  raient comprendre chacune deux bandes 13  de section     transversale    incurvée disposées de  faon que leurs faces concaves soient opposées       l'une    à l'autre.     Dans    ce cas, l'air de refroi  dissement provenant de l'espace 2 pénétrerait  par les trous 7 de la cloison 3 dans l'espace  compris entre les bandes 13 et s'échapperait  dans l'enceinte de     combustion    entre les bords  libres espacés de ces bandes 13.



  Combustion chamber. The subject of the invention is a combustion chamber, for example a combustion chamber of a gas turbine.



  This combustion chamber is characterized according to the invention in that the combustion chamber is limited by a wall eornprenarrt a partition having on the inner side ribs so as to form housings in which are placed bands of refractory material. silent, these ribs being hollow and engaging the bands of refractory material so as to retain them in their housings, the ribs each having at least one orifice through which the cooling air passes into the combustion chamber,

      and the aforementioned partition being provided with holes which will communicate with the interior of the hollow ribs.



  The drawing represents selrematically, as (the exeiyrl), two embodiments of the combustion chamber according to the invention, as well as a variant of detail.



  Fig. 1 shows, in cross section, part of a first embodiment. Fig. 2 shows the interior appearance of the combustion chamber of this embodiment.



  Fig. 3 shows, in cross section, part of a second embodiment, and FIG. 4 shows, in cross section, a rib of a variant of these embodiments.



  In the embodiment shown in FIG. 1, an evlindrique jacket 1 surrounds an annular section space 2 for the passage of cooling air, this. space surrounding the cylindrical wall of the combustion chamber. This wall comprises a wall its cylindrical of revolution in metal 3 present on the inside of metal ribs 4 equally spaced and welded or otherwise joined to the wall 3.

   In the housings formed by the partition 3 and the ribs 4 are placed strips of refractory material 5, for example based on zirconia or silicon carbide, which extend towards the inside of the combustion chamber at the bottom. hence the free edges of the ribs. The ribs 4 are arranged in radial planes and in cross section have the shape of wedges widening towards the inside of the combustion chamber. In this way, the ban des 5, which have a trapezoidal section, are retained in their housings by engagement with the ribs 4.

   These ribs 4 are hollow and have air holes 6 suitably spaced along their free edge. Air holes in the partition 3 allow the air to pass into the combustion chamber via the hollow ribs 4, this air coming from the space of annular section 2.

        In the embodiment of 1a fig. 3, the wall limiting the combustion chamber is made as in the corner-bastion chamber of FIG. 1, except that the bands of refractory material 5 do not extend beyond the ribs 4 and that a cylindrical coating 8 of metal resistant to high temperatures, for example of molybdenum or one of its alloys, rests on the internal surfaces of these ban of 5.

   The space between the wall limiting the combustion chamber and the jacket 1 is subdivided into two parts of coaxial annular section 9 and 10 by means of a cylindrical shield 11 for protection against radiation. In the space 9 protrude a number of cooling fins 12, arranged radially, suitably spaced and fixed to the partition 3 of the wall bounding the combustion chamber by welding or otherwise.

   Cooling air from space 9 enters the hollow ribs 4 through the holes 7 of the partition 3 and escapes into the combustion chamber through the holes 6 of these ribs which correspond to holes in the coating 8.



       As shown in fig. 4, which relates to a variant of the combustion chambers of FIGS. 1 to 3, the ribs 4 could each comprise two bands 13 of curved cross section arranged so that their concave faces are opposite to each other. In this case, the cooling air coming from space 2 would penetrate through the holes 7 of the partition 3 into the space between the strips 13 and would escape into the combustion chamber between the free edges spaced apart. these bands 13.

 

Claims (1)

REVENDICATION: Chambre de combustion, caractérisée en ce que l'enceinte de combustion est limitée par une paroi comprenant ime cloison présentant du côté intérieur des nervures de façon à for mer des logeine@nts dans lesquels sont placées des bandes de matière réfractaire, ces ner vures étant creuses et engageant les bandes de matière réfractaire de façon à retenir celles-ci dans leurs logements, les nervures présentant chacune au moins un orifice par lequel de l'air de refroidissement passe clans l'enceinte de combustion, et la cloison susmen tionnée étant munie de trous qui communi quent avec l'intérieur des nervures creuse. SOUS-REVENDICATIONS: 1. CLAIM: Combustion chamber, characterized in that the combustion chamber is limited by a wall comprising a partition having ribs on the interior side so as to form pockets in which bands of refractory material are placed, these nerves vures being hollow and engaging the bands of refractory material so as to retain them in their housings, the ribs each having at least one orifice through which the cooling air passes through the combustion chamber, and the aforementioned partition being provided with holes which communicate with the interior of the hollow ribs. SUBCLAIMS: 1. Chambre selon la revendication, carac térisée en ce que la cloison susmentionnée de la paroi de l'enceinte de combustion est cour bée, les nervures étant disposées suivant des plans normaux à cette cloison. 2. Chambre selon la revendication, carac térisée en ce que la cloison susmentionnée de la paroi de l'enceinte de combustion ainsi que les nervures sont en métal et sont réunies par soudage. 3. Chambre selon la revendication, carac térisée en ce que les bandes réfractaires s'éten dent vers l'intérieur de l'enceinte de combLis- tion au-delà des bords libres des, nervures. 4. Chamber according to claim, charac terized in that the aforementioned partition of the wall of the combustion chamber is curved, the ribs being arranged in planes normal to this partition. 2. Chamber according to claim, charac terized in that the above-mentioned partition of the wall of the combustion chamber as well as the ribs are made of metal and are joined by welding. 3. Chamber according to claim, characterized in that the refractory bands extend towards the interior of the combustion chamber beyond the free edges of the ribs. 4. Chambre de combustion selon la reven dication, caractérisée en ce que les nervures ont en section transversale une forme allant en s'élargissant vers l'intérieur de l'enceinte de combustion. 5. Chambre de combustion selon la r ev en dication, caractérisée en ce qu'un revêtement de métal résistant aux températures élevées couvre au moins une partie de la surface in terne des bandes de matière réfractaire. 6. Combustion chamber according to the claim, characterized in that the ribs have in cross section a shape extending towards the interior of the combustion chamber. 5. Combustion chamber according to the re dication, characterized in that a coating of metal resistant to high temperatures covers at least part of the internal surface of the bands of refractory material. 6. Chambre de combustion selon la reven dication, caractérisée en ce que chaque ner- vure comprend deux bandes de section trans versale incurvée dont les faces concaves sont. opposées l'une à. l'autre. 7. Chambre de combustion selon la reven dication, caractérisée en ce que la paroi limi tant l'enceinte de combustion est entourée d'une chemise, un espace pour le passage de l'air de refroidissement étant ménagé entre cette chemise et cette paroi. 8. Combustion chamber according to the claim, characterized in that each rib comprises two bands of curved transverse section, the faces of which are concave. opposite one to. the other. 7. Combustion chamber according to claim, characterized in that the wall limiting both the combustion chamber is surrounded by a jacket, a space for the passage of cooling air being provided between this jacket and this wall. 8. Chambre de combustion selon la reven dication et la sous-revendication 7, caractéri sée en ce que la surface extérieure de la cloi son susmentionnée de la paroi de l'enceinte de combustion est munie d'ailettes de refroi dissement. 9. Chambre de combustion selon la reven dication et la sous-revendication 7, caractéri sée en ce qu'un écran de protection contre les radiations est disposé entre la paroi limitant l'enceinte de combustion et la chemise. Combustion chamber according to claim and sub-claim 7, characterized in that the outer surface of the aforementioned partition of the wall of the combustion chamber is provided with cooling fins. 9. Combustion chamber according to claim and sub-claim 7, charac terized in that a radiation shielding is disposed between the wall limiting the combustion chamber and the jacket.
CH268030D 1946-01-09 1947-01-09 Combustion chamber. CH268030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB830/46A GB602149A (en) 1946-01-09 1946-01-09 Improvements in and relating to combustion chamber linings

Publications (1)

Publication Number Publication Date
CH268030A true CH268030A (en) 1950-04-30

Family

ID=9711219

Family Applications (1)

Application Number Title Priority Date Filing Date
CH268030D CH268030A (en) 1946-01-09 1947-01-09 Combustion chamber.

Country Status (5)

Country Link
US (1) US2548485A (en)
CH (1) CH268030A (en)
FR (1) FR939630A (en)
GB (1) GB602149A (en)
NL (1) NL69245C (en)

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Also Published As

Publication number Publication date
NL69245C (en)
FR939630A (en) 1948-11-19
US2548485A (en) 1951-04-10
GB602149A (en) 1948-05-20

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