EP0442795B1 - Zerlegbarer Wärmetauscher mit Haarnadel-Rohren in parallelen Ebenen - Google Patents

Zerlegbarer Wärmetauscher mit Haarnadel-Rohren in parallelen Ebenen Download PDF

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Publication number
EP0442795B1
EP0442795B1 EP91400333A EP91400333A EP0442795B1 EP 0442795 B1 EP0442795 B1 EP 0442795B1 EP 91400333 A EP91400333 A EP 91400333A EP 91400333 A EP91400333 A EP 91400333A EP 0442795 B1 EP0442795 B1 EP 0442795B1
Authority
EP
European Patent Office
Prior art keywords
tubes
enclosure
branches
tube
heat exchanger
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
EP91400333A
Other languages
English (en)
French (fr)
Other versions
EP0442795A1 (de
Inventor
André Teton
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.)
Stein Industrie SA
Original Assignee
Stein Industrie 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
Application filed by Stein Industrie SA filed Critical Stein Industrie SA
Publication of EP0442795A1 publication Critical patent/EP0442795A1/de
Application granted granted Critical
Publication of EP0442795B1 publication Critical patent/EP0442795B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
    • F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
    • F28D7/085—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
    • F28D7/087—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions assembled in arrays, each array being arranged in the same plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/02—Removable elements

Definitions

  • the present invention relates to a removable heat exchanger with horizontal tubes in multiple hairpins, the tubes being mounted on vertical tubular plates orthogonal to the tubes, with an enclosure in the shape of a rectangular parallelepiped, in which a charged gas circulates around these tubes.
  • a charged gas circulates around these tubes.
  • solid particles each tube being connected to the inlet and the outlet by branches passing through walls of the enclosure, said tubular plates being pierced with oval windows forming buttonholes in line with the bends of the tubes and circular openings in line with the straight lengths of the tubes.
  • exchangers are used in particular for cooling ash from a circulating fluidized bed reactor, before their recycling in the reactor.
  • the object of the present invention is to provide a heat exchanger of this kind, the repairs of which can be carried out in a simpler and faster manner, with much less handling, and entail much lower costs.
  • the heat exchanger according to the invention is characterized in that the tubular plates are fixed inside the enclosure, in that the oval windows are pierced in line with the elbows of the tubes situated on the side of the wall through which the branches, and in that the wall of the enclosure opposite to that crossed by the branches is removable.
  • oval windows and the circular openings are provided with sleeves.
  • Figure 1 shows the exchanger in side elevation, the plane of the figure being parallel to the planes of multiple hairpins, with section of the wall of the enclosure.
  • Figure 2 shows it in section between two tubular plates, the plane of the figure being perpendicular to the planes of the hairpins.
  • FIG. 3 shows a front view of the detail of a "buttonhole" of a tube plate for the passage of a tube bend.
  • FIG. 4 represents the same "buttonhole” seen in profile, with the protective sleeves of the tubes (detail IV of FIG. 1)
  • FIG. 5 represents the detail of a passage orifice with a straight length of tube end with its sheath (detail V of FIG. 1).
  • the exchanger comprises a chamber lined with a refractory 1 around a set 2 of tubes with multiple hairpins mounted in parallel planes.
  • the chamber has on one of its sides facing one of the tubular plates a removable wall 3 making it possible to remove from this chamber one or the other of the hairpin tubes such as 15.
  • On the floor of the chamber are arranged with fluidization air injectors 4.
  • the multiple hairpin tube shown is connected to the inlet 5 and outlet 6 collectors of the fluid to be heated in exchange for heat with the solid particles.
  • Tube branches 7 and 8 passing through the wall connect these collectors to the hairpin tube, which has straight inlet 9 and outlet 10 lengths and loops such as 11 on its right and 12 on its left.
  • the tube is held in fixed tubular plates 13, 14, 15. These plates are connected by spacers 16, 17, 18.
  • FIGS. 3 and 4 show on a larger scale the "buttonholes" 19 allowing the passage of the elbows of the tube through the tubular plates 13, 14, 15.
  • the branches 21 and 22 pass through the lower and upper ends of the window 19.
  • FIG. 5 shows on a larger scale a circular orifice for the passage of the upper rectilinear branch 10 of the hairpin tube.
  • a circular sheath 27 is welded to the tubular plates 13, 14, 15 by weld beads such as 28.
  • the spacer 18 is also welded to the tubular plate by a weld bead 29.
  • the disassembly and reassembly of a tube made of multiple hairpins such as that shown in FIG. 1 is carried out as follows.
  • the sections of tube 7, 8 connecting it to the inlet and outlet manifolds 5 and 6 are cut.
  • the wall 3 of the enclosure facing the tubular plate 13 is dismantled.
  • the tube is then pulled by its loops such that 12 on the side of the opening cleared in the wall.
  • the loops such as 11 pass through the windows 19 of the tubular plates 13, 14, 15 and its straight inlet and outlet lengths (10 + 8) and (9 + 7) pass through the circular sleeves such as 27.
  • the tube is completely removed from enclosure 1.
  • the elbows such as 11 of the tube are presented in the "buttonholes" of the tube plate 13, they are passed through them, then through the corresponding windows of the tube plates 14, 15, while the straight lengths (10 + 8) and (9 + 7) pass through the circular sleeves 27 of these same tube plates, then in the openings through the wall of the enclosure opposite the tubular plate 14.
  • the tube sections 7 and 8 are then welded again to re-establish their connection with the collectors 5 and 6. It is then possible to close the wall 3 of the enclosure facing the tubular plate 13 and put the heat exchanger back into service.

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)

Claims (2)

  1. Demontierbarer Wärmetauscher mit waagrechten Vielfach-Haarnadelrohren (2), in denen ein Fluid fließt und die an senkrechten Rohrböden (13, 14, 15), die rechtwinklig zu den Rohren verlaufen, montiert sind, mit einer Umschließung (1) in Form eines rechtwinkligen Parallelepipeds, in welchem ein mit Festkörperteilchen beladenes Gas die Rohre (2) umströmt, wobei jedes Rohr am Eingang und am Ausgang in Abzweigleitungen (7, 8) mündet, die Wände der Umschließung durchdringen, während die Rohrböden (13, 14, 15) von ovalen Fenstern (19) durchbrochen sind, die in Höhe der Umkehrbögen der Rohre "Knopflöcher" bilden, und in Höhe der geraden Längen der Rohre von kreisförmigen Öffnungen (20) durchbrochen sind, dadurch gekennzeichnet, daß die Rohrböden im Inneren der Umschließung befestigt sind, daß die ovalen Fenster in Höhe derjenigen Umkehrbögen (11) der Rohre (2) angebracht sind, die sich an der Seite der von den Abzweigleitungen (7, 8) durchquerten Wand befinden, und daß die Wand (3) der Umschließung, die der von den Abzweigleitungen (7, 8) durchquerten Wand gegenüberliegt, demontierbar ist.
  2. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß die ovalen Fenster (10) und die kreisförmigen Öffnungen (20) mit Manschetten (23, 24, 27) versehen sind.
EP91400333A 1990-02-14 1991-02-12 Zerlegbarer Wärmetauscher mit Haarnadel-Rohren in parallelen Ebenen Expired - Lifetime EP0442795B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9001748A FR2658278A1 (fr) 1990-02-14 1990-02-14 Echangeur de chaleur demontable a tubes en epingles a cheveux disposes dans des plans paralleles.
FR9001748 1990-02-14

Publications (2)

Publication Number Publication Date
EP0442795A1 EP0442795A1 (de) 1991-08-21
EP0442795B1 true EP0442795B1 (de) 1994-06-01

Family

ID=9393704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91400333A Expired - Lifetime EP0442795B1 (de) 1990-02-14 1991-02-12 Zerlegbarer Wärmetauscher mit Haarnadel-Rohren in parallelen Ebenen

Country Status (6)

Country Link
EP (1) EP0442795B1 (de)
AT (1) ATE106541T1 (de)
DE (1) DE69102159T2 (de)
DK (1) DK0442795T3 (de)
ES (1) ES2056590T3 (de)
FR (1) FR2658278A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29510720U1 (de) * 1995-07-01 1995-09-07 BDAG Balcke-Dürr AG, 40882 Ratingen Wärmetauscher
JP5829597B2 (ja) * 2012-11-22 2015-12-09 三菱重工業株式会社 フィンチューブ式熱交換装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1038078A (en) * 1963-08-12 1966-08-03 Marston Excelsior Ltd Heat exchangers
US4096909A (en) * 1976-12-23 1978-06-27 Dorr-Oliver Incorporated Fluidized bed process heater
SE423151B (sv) * 1977-11-16 1982-04-13 Stal Laval Apparat Ab Vermevexlare med rorslingor mellan berveggar
GB2117503B (en) * 1982-03-29 1985-10-30 Westinghouse Electric Corp Heat exchanger tube support plate
US4522157A (en) * 1982-09-30 1985-06-11 Lummus Crest Inc. Convection section assembly for process heaters
US4580623A (en) * 1984-10-02 1986-04-08 Inglis Limited Heat exchanger

Also Published As

Publication number Publication date
DE69102159T2 (de) 1994-09-08
EP0442795A1 (de) 1991-08-21
DK0442795T3 (da) 1994-07-25
DE69102159D1 (de) 1994-07-07
ATE106541T1 (de) 1994-06-15
FR2658278A1 (fr) 1991-08-16
ES2056590T3 (es) 1994-10-01

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