EP0135668A2 - Echangeur de chaleur avec un passage de gaz - Google Patents

Echangeur de chaleur avec un passage de gaz Download PDF

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Publication number
EP0135668A2
EP0135668A2 EP84105684A EP84105684A EP0135668A2 EP 0135668 A2 EP0135668 A2 EP 0135668A2 EP 84105684 A EP84105684 A EP 84105684A EP 84105684 A EP84105684 A EP 84105684A EP 0135668 A2 EP0135668 A2 EP 0135668A2
Authority
EP
European Patent Office
Prior art keywords
pipes
gas
wall
heat exchanger
bent
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
EP84105684A
Other languages
German (de)
English (en)
Other versions
EP0135668A3 (en
EP0135668B1 (fr
Inventor
Heinz Ammann
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.)
Trasformazione Societaria sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer 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
Application filed by Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of EP0135668A2 publication Critical patent/EP0135668A2/fr
Publication of EP0135668A3 publication Critical patent/EP0135668A3/de
Application granted granted Critical
Publication of EP0135668B1 publication Critical patent/EP0135668B1/fr
Expired 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
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/14—Supply mains, e.g. rising mains, down-comers, in connection with water tubes
    • 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
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/14—Supply mains, e.g. rising mains, down-comers, in connection with water tubes
    • F22B37/148—Tube arrangements for the roofs

Definitions

  • the invention relates to a heat exchanger with a gas flue, which consists of wall tubes which extend substantially parallel to its longitudinal axis, are gas-tightly welded to one another and through which a medium flows, and which at least at one end has pipes which are also gas-tightly welded to one another and through which a medium flows is completed, which run transverse to the longitudinal axis of the throttle cable.
  • This object is achieved according to the invention in that all of the pipes terminating at one end of the gas train are connected on the medium side to at least 80% of the wall pipes of the gas train.
  • This solution in which at least 80% of the medium flowing through the wall pipes reaches the entire pipe end of the throttle cable, leads to surprisingly simple designs, for practically all cross-sectional shapes of the gas cable. Any differences in pipe lengths are much smaller with the new solution than with the known heat exchanger.
  • a vertical throttle cable 1 of a heat exchanger for example a steam generator, has the shape of a straight prism with an octagonal cross section.
  • Each of the eight sides of the prism 1 consists of tubes 15 which run in the longitudinal direction of the throttle cable and which are welded to one another in a gas-tight manner via webs 6 and form the boundary walls of the throttle cable.
  • tubes 15 are bent inwards by 90 and form essentially horizontally extending tubes 5. These tubes are then guided parallel to each other on the prism side in the direction of the center of the gas cable.
  • the parallel guidance of the tubes 5 within each triangular surface assigned to an octagon side (FIG.
  • all wall pipes 15 of the throttle cable 1 are thus continued into the ceiling 20, so that all of them ceiling pipes with 100% of the wall pipes of the throttle cable are connected in series on the medium side.
  • the differences in the pipe lengths of each octagon side with the associated triangular surface are practically the same, so that the heat absorption of the coolant flowing in the pipes - seen over the entire throttle cable - becomes more uniform and thus the coolant states when the coolant enters the collectors 22 are more uniform.
  • the working medium is combined in a manner not shown and either supplied to further heating surfaces of the steam generator or directly to a consumer.
  • the vertical throttle cable 1 which serves, for example, as a steam generator combustion chamber, has the shape of a straight, hexagonal prism with six identical sides.
  • the sides are again formed by in the longitudinal direction of the throttle cable 1 extending wall tubes 15, the sealing means of webs 6 are welded together Sind.
  • Auf a first height level C the tubes of three non-adjacent sides are each bent at approximately 90 0 to the inside and form as Pipes 5 'together form a first layer 3 of the ceiling 2 of the gas inlet.
  • the remaining three sides of the prism are also bent inwards by 90 ° on a second height plane D slightly above the first height plane C and together form tubes 5 ′′ a second layer 4 of the ceiling 2.
  • the tubes 5 'originating from the wall of the throttle cable 1 lying on the left in FIG. 3 extend with the associated webs 6 to a point at which the two outermost tubes of this wall extend onto the adjacent outermost tube 5' meet other two walls of this layer; one of these two positions is designated E in FIG. 3.
  • the tubes 5 'coming from the left without webs 6 are bent upwards and - after a further 90 ° bend - open horizontally into an end collector 8.
  • the tubes 5' coming from the other two sides of the first Layer 3 initially runs similarly to those coming from the outside to a point F (FIG.
  • the first layer 3 of the ceiling 2 contains three triangular openings 13, one of which is partially visible in FIG. 3. These openings are covered by the tubes 5 ′′ forming the second layer 4. About half of the tubes 5 ′′ coming from one side of the throttle cable form a central strip which is guided so far towards the center of the gas cable 1 that it projects beyond the closest point E or F of the triangular surface in the first layer 3. At this end of each middle strip, the tubes 5 "are bent vertically upwards and, after a further bend, are guided horizontally into a collector 7.
  • each middle strip On both sides of each middle strip, the remaining tubes 5" coming from the associated throttle cable wall are guided about half as far as that Pipes of the middle strip and then bent vertically upwards and finally horizontally after another turn bent connected to that intermediate collector 7, in which also open the tubes of the middle strip.
  • the webs 6 of the second layer 4 run between the tubes 5 ′′ only in the height plane D.
  • the intermediate collectors 7 are connected to the end collector 8 by means of connecting tubes 12 (FIG. 4).
  • the intermediate collectors 7, like the end collector 8, are arranged essentially horizontally, the intermediate collectors 7 and the end collector 8 being at right angles to the pipes 5 ′′ or 5 ′ opening into them.
  • the connecting pipes 12 and those outside the first layer 3 and the second layer 4 running sections of the pipes 5 'and 5 "have the necessary flexibility due to their length and their course to be able to absorb deformations due to different thermal expansions in the ceiling 2 or due to earthquakes.
  • the supports 9 are connected in a known manner, not shown, to the ceiling 2 by means of a fixed connection lying in the middle and several connections distributed over their length and sliding in their longitudinal direction, and at their ends by means of joints to the vertical walls of the throttle cable 1 .
  • bending stresses on the ceiling 2 are absorbed by the beams 9 and passed on to the walls of the throttle cable 1 as pure tensile or compressive stresses, the sliding connections and the joints absorbing thermal expansions in the longitudinal direction of the beams 9.
  • the pipes 5 ′′ guided around the supports 9 are at such a distance from the supports that they can perform their function undisturbed.
  • sheet metal strips 11 connect the first layer 3 to the second layer 4, so that the interior of the throttle cable 1 is sealed from its surroundings.
  • cover plates 10 are welded onto the underside of the second layer 4, parallel to each edge of the triangular openings, which each connect two adjacent tubes 5 "in such a way that adjacent cover plates 10 touch and all cover plates 10 together have flat surfaces
  • the sheet metal strips 11 are tightly welded to these flat surfaces and to those tubes 5 'which delimit the openings 13, approximately at the height of the longitudinal axis of these tubes, so that the welding points are easily accessible from below, both during manufacture as well as later for any inspections.
  • both ends of the cover plates 10 are extended up to the webs 6 between the tubes 5 "and are tightly welded to these webs.
  • the exemplary embodiment according to FIGS. 7 and 8 relates to a ceiling 20 of a throttle cable 1 with a regular octagonal cross section.
  • the wall tubes 15 of the throttle cable 1 are bent outwards near its upper end and are guided in intermediate collectors 21;
  • Such a collector 21 is provided parallel to each side of the throttle cable 1.
  • the pipes 5 leaving each intermediate collector 21 run parallel to each other and enter the gas duct 1 between two wall pipes 15 to form the ceiling 20. In the ceiling 20, too, they run parallel to one another up to the edge 24, where they meet tubes 5 from an adjacent intermediate collector 21.
  • the tubes 5 are bent upwards at the edge 24 from the ceiling 20 and open into collectors 22 which run along the edges 24.
  • the length of the pipe sections projecting upward from the ceiling 20 is dimensioned such that they have sufficient flexibility to be able to compensate for deformations caused by thermal expansion or earthquakes without problems.
  • the intermediate collectors 21 in the medium flow differently than shown in FIG. 7.
  • the wall pipes 15 of a wall of the throttle cable 1 can be connected via the associated intermediate collector to pipes 5 which are not in the triangular section of the ceiling 20 adjoining the wall mentioned.
  • penetrations such as manholes can also be made in the ceiling in a known manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP84105684A 1983-08-31 1984-05-18 Echangeur de chaleur avec un passage de gaz Expired EP0135668B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH477483 1983-08-31
CH4774/83 1983-08-31

Publications (3)

Publication Number Publication Date
EP0135668A2 true EP0135668A2 (fr) 1985-04-03
EP0135668A3 EP0135668A3 (en) 1985-12-11
EP0135668B1 EP0135668B1 (fr) 1988-08-24

Family

ID=4282306

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84105684A Expired EP0135668B1 (fr) 1983-08-31 1984-05-18 Echangeur de chaleur avec un passage de gaz

Country Status (6)

Country Link
US (1) US4546731A (fr)
EP (1) EP0135668B1 (fr)
JP (1) JPS6060404A (fr)
CA (1) CA1247479A (fr)
DE (1) DE3473636D1 (fr)
PL (1) PL248386A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288686A2 (fr) * 1987-04-25 1988-11-02 Deutsche Babcock Energie- und Umwelttechnik Aktiengesellschaft Refroidisseur pour gaz issus de la gazéification

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1285478B1 (it) * 1996-10-04 1998-06-08 Bono En S P A Generatore di calore a fluido diatermico,con controllo selettivo del flusso
US6793013B2 (en) * 2003-01-09 2004-09-21 Foster Wheeler Energy Corporation Polygonal heat exchange chamber including a tapered portion lined with water tube panels and method of lining a tapered portion of a polygonal heat exchange chamber with such panels
US10131574B2 (en) 2013-06-17 2018-11-20 Corning Incorporated Antimicrobial glass articles and methods of making and using same
CN104344401B (zh) * 2013-08-09 2016-09-14 中国科学院工程热物理研究所 带变截面水冷柱的循环流化床锅炉炉膛
EP3105195A1 (fr) 2014-02-13 2016-12-21 Corning Incorporated Verre présentant une résistance et des propriétés antimicrobiennes améliorées, et son procédé de fabrication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871832A (en) * 1956-03-12 1959-02-03 Combustion Eng Novel method relating to steam generators
US3511217A (en) * 1968-09-18 1970-05-12 Foster Wheeler Corp Dual circulation vapor generator
DE2238240A1 (de) * 1971-08-25 1973-06-07 Waagner Biro Ag Dampfkessel

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1104108B (de) * 1955-07-13 1961-04-06 Walther & Cie Ag Schmelzkammerfeuerung mit mehreren von oben befeuerten Teilbrennkammern
US3299858A (en) * 1965-05-05 1967-01-24 Babcock & Wilcox Ltd Vapor generator wall construction
DE2153965B2 (de) * 1971-10-29 1974-09-12 Kraftwerk Union Ag, 4330 Muelheim Dampferzeuger mit ebenem Brennkammerboden
US3814062A (en) * 1972-05-27 1974-06-04 Siegener Ag Waste heat boiler with boiler walls and wall portions of finned pipes
CH653360A5 (de) * 1980-09-19 1985-12-31 Sulzer Ag Heissgaskuehler an einer kohlevergasungsanlage.
US4394849A (en) * 1981-06-22 1983-07-26 Foster Wheeler Energy Corporation Vapor generator having drainable tube bends around burner openings extending through furnace boundary walls formed in part by angularly extending fluid flow tubes
US4355602A (en) * 1981-08-10 1982-10-26 Cedar Dunes Investments Ltd. Boiler
EP0075041B1 (fr) * 1981-09-15 1986-03-05 GebràœDer Sulzer Aktiengesellschaft Générateur de vapeur avec une paroi tubulaire de surchauffe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871832A (en) * 1956-03-12 1959-02-03 Combustion Eng Novel method relating to steam generators
US3511217A (en) * 1968-09-18 1970-05-12 Foster Wheeler Corp Dual circulation vapor generator
DE2238240A1 (de) * 1971-08-25 1973-06-07 Waagner Biro Ag Dampfkessel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288686A2 (fr) * 1987-04-25 1988-11-02 Deutsche Babcock Energie- und Umwelttechnik Aktiengesellschaft Refroidisseur pour gaz issus de la gazéification
EP0288686A3 (en) * 1987-04-25 1989-02-01 Deutsche Babcock Werke Aktiengesellschaft Coder for gases produced by gasification

Also Published As

Publication number Publication date
CA1247479A (fr) 1988-12-28
PL248386A1 (en) 1985-04-09
EP0135668A3 (en) 1985-12-11
DE3473636D1 (en) 1988-09-29
JPH0585803B2 (fr) 1993-12-08
US4546731A (en) 1985-10-15
EP0135668B1 (fr) 1988-08-24
JPS6060404A (ja) 1985-04-08

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