EP0442795A1 - Dismountable heat exchanger with hairpin tubes in parallel planes - Google Patents

Dismountable heat exchanger with hairpin tubes in parallel planes Download PDF

Info

Publication number
EP0442795A1
EP0442795A1 EP91400333A EP91400333A EP0442795A1 EP 0442795 A1 EP0442795 A1 EP 0442795A1 EP 91400333 A EP91400333 A EP 91400333A EP 91400333 A EP91400333 A EP 91400333A EP 0442795 A1 EP0442795 A1 EP 0442795A1
Authority
EP
European Patent Office
Prior art keywords
tubes
tube
branches
enclosure
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.)
Granted
Application number
EP91400333A
Other languages
German (de)
French (fr)
Other versions
EP0442795B1 (en
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/en
Application granted granted Critical
Publication of EP0442795B1 publication Critical patent/EP0442795B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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 between a fluid circulating inside horizontal tubes in multiple hairpins, mounted on vertical tubular plates orthogonal to the tubes, and a gas charged with solid particles circulating around these tubes at l inside an enclosure in the shape of a rectangular parallelepiped, each tube being connected to the inlet and the outlet by branches passing through the walls of the enclosure, said tubular plates being pierced with oval windows forming buttonholes in line with the tube bends and circular openings to the right of 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 whose repairs 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 oval windows are pierced in line with the elbows of the tubes situated on the side of the wall traversed by the branches and in that the wall of the enclosure opposite to that traversed 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 has a chamber lined with 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 elbows of the tube to pass 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 tube 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 tubular plates 14, 15, while the straight lengths (10 + 8) and (9 + 7) pass through the circular sleeves 27 of these same tubular 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)

Abstract

Dismountable heat exchanger for heat exchange between a fluid flowing inside multiple horizontal hairpin tubes (2), which are mounted on vertical tubular plates (13, 14, 15) orthogonal to the tubes, and a gas loaded with solid particles circulating around these tubes (2) inside an enclosure (1) of rectangular parallelepipedal shape, each tube being connected at the inlet and at the outlet by branches (7, 8) passing through the walls of the enclosure, the said tubular plates (13, 14, 15) being pierced with oval windows (19) forming slots at right angles to the bends of the tubes, and circular openings (20) at right angles to the straight lengths of the tubes, characterised in that the oval windows are pierced at right angles to the bends (11) of the tubes (2) located on the side of the wall traversed by the branches (7, 8) and in that the wall (3) of the enclosure opposite that traversed by the branches (7, 8) is dismountable. The replacement of a tube (2) is very easy and does not require the dismounting of the tubular plates (13, 14, 15). <IMAGE>

Description

La présente invention concerne un échangeur de chaleur démontable entre un fluide circulant à l'intérieur de tubes horizontaux en épingles à cheveux multiples, montés sur des plaques tubulaires verticales orthogonales aux tubes, et un gaz chargé de particules solides circulant autour de ces tubes à l'intérieur d'une enceinte en forme de parallélépipède rectangle, chaque tube étant relié à l'entrée et à la sortie par des branches passant à travers des parois de l'enceinte, lesdites plaques tubulaires étant percées de fenêtres ovales formant boutonnières au droit des coudes des tubes et d'ouvertures circulaires au droit des longueurs droites des tubes.The present invention relates to a removable heat exchanger between a fluid circulating inside horizontal tubes in multiple hairpins, mounted on vertical tubular plates orthogonal to the tubes, and a gas charged with solid particles circulating around these tubes at l inside an enclosure in the shape of a rectangular parallelepiped, each tube being connected to the inlet and the outlet by branches passing through the walls of the enclosure, said tubular plates being pierced with oval windows forming buttonholes in line with the tube bends and circular openings to the right of the straight lengths of the tubes.

Ces échangeurs sont notamment utilisés pour le refroidissement de cendres issues d'un réacteur à lit fluidisé circulant, avant leur recyclage dans le réacteur.These exchangers are used in particular for cooling ash from a circulating fluidized bed reactor, before their recycling in the reactor.

Ces échangeurs sont soumis à des phénomènes d'érosion par les particules circulant autour de leurs tubes, qui nécessitent des réparations fréquentes, chaque fois que l'un des tubes est percé.These exchangers are subject to erosion phenomena by the particles circulating around their tubes, which require frequent repairs, each time one of the tubes is pierced.

Dans un échangeur de ce type décrit dans le document US-A-4522157, pour remplacer un tube en épingles à cheveux il faut démonter une ou deux plaques tubulaires selon le tube considéré.In an exchanger of this type described in document US-A-4522157, to replace a hairpin tube, one or two tubular plates must be removed depending on the tube considered.

Les autres tubes ne sont dès lors plus soutenus, ce qui oblige à prévoir au cours d'intervention un maintien provisoire des extrémités des épingles en remplacement de ou des plaques retirées.The other tubes are therefore no longer supported, which means that provision must be made during the intervention to temporarily hold the ends of the pins in place of or removed plates.

La présente invention a pour but de procurer un échangeur de chaleur de ce genre dont les réparations puissent être effectuées de façon plus simple et plus rapide, avec beaucoup moins de manutentions, et entraînent des frais bien moindres.The object of the present invention is to provide a heat exchanger of this kind whose repairs can be carried out in a simpler and faster manner, with much less handling, and entail much lower costs.

L'échangeur de chaleur selon l'invention est caractérisé en ce que les fenêtres ovales sont percées au droit des coudes des tubes situés du côté de la paroi traversée par les branches et en ce que la paroi de l'enceinte opposée à celle traversée par les branches est démontable.The heat exchanger according to the invention is characterized in that the oval windows are pierced in line with the elbows of the tubes situated on the side of the wall traversed by the branches and in that the wall of the enclosure opposite to that traversed by the branches is removable.

De préférence les fenêtres ovales et les ouvertures circulaires sont munies de fourreaux.Preferably the oval windows and the circular openings are provided with sleeves.

Il est décrit ci-après, à titre d'exemple et en référence aux figures du dessin annexé, un échangeur de chaleur démontable selon. l'invention.There is described below, by way of example and with reference to the figures of the appended drawing, a removable heat exchanger according to. the invention.

La figure 1 représente l'échangeur en élévation latérale, le plan de la figure étant parallèle aux plans des épingles à cheveux multiples, avec coupe de la paroi de l'enceinte.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.

La figure 2 le représente en coupe entre deux plaques tubulaires, le plan de la figure étant perpendiculaire aux plans des épingles à cheveux.Figure 2 shows it in section between two tubular plates, the plane of the figure being perpendicular to the planes of the hairpins.

La figure 3 représente de face le détail d'une "boutonnière" de plaque tubulaire pour le passage d'un coude de tube.FIG. 3 shows a front view of the detail of a "buttonhole" of a tube plate for the passage of a tube bend.

La figure 4 représente la même "boutonnière" vue de profil, avec les fourreaux de protection des tubes (détail IV de la figure 1)FIG. 4 represents the same "buttonhole" seen in profile, with the protective sleeves of the tubes (detail IV of FIG. 1)

La figure 5 représente le détail d'un orifice de passage d'une longueur droite d'extrémité de tube avec son fourreau (détail V de la figure 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).

Dans la figure 1, l'échangeur comporte une chambre garnie de réfractaire 1 autour d'un jeu 2 de tubes en épingles à cheveux multiples montés dans des plans parallèles.In Figure 1, the exchanger has a chamber lined with refractory 1 around a set 2 of tubes with multiple hairpins mounted in parallel planes.

La chambre comporte sur l'un de ses côtés faisant face à l'une des plaques tubulaires une paroi démontable 3 permettant de retirer de cette chambre l'un ou l'autre des tubes en épingle à cheveux tels que 15. Sur le sol de la chambre sont disposés des injecteurs d'air de fluidisation 4.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.

Le tube en épingle à cheveux multiple représenté est relié à des collecteurs d'arrivée 5 et de sortie 6 du fluide à réchauffer en échange de chaleur avec les particules solides. Des branches de tube 7 et 8 traversant la paroi relient ces collecteurs au tube en épingle à cheveux, qui comporte des longueurs droite d'arrivée 9 et de sortie 10 et des boucles telles que 11 sur sa droite et 12 sur sa gauche. Le tube est maintenu dans des plaques tubulaires fixes 13, 14, 15. Ces plaques sont reliées par des entretoises 16, 17, 18.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.

Il est représenté à gauche en trait interrompu un tube en épingles à cheveux 30 sorti de l'enceinte 1 pour réparation (la porte 3 ayant été au préalable démontée à cet effet).It is shown on the left in broken lines a hairpin tube 30 taken out of the enclosure 1 for repair (the door 3 having been previously dismantled for this purpose).

On voit en figure 2 les fenêtres ovales ou "boutonnières" telles que 19 des plaques tubulaires permettant le dégagement des coudes du tube en épingle à cheveux. Les branches rectilignes d'arrivée et de sortie 9, 10 traversent les plaques tubulaires par des orifices circulaires tels que 20.We see in Figure 2 the oval windows or "buttonholes" such as 19 of the tubular plates allowing the release of the elbows of the hairpin tube. The rectilinear inlet and outlet branches 9, 10 pass through the tubular plates through circular orifices such as 20.

Les figures 3 et 4 montrent à plus grande échelle les "boutonnières" 19 permettant le passage des coudes du tube à travers les plaques tubulaires 13, 14, 15. Les branches 21 et 22 passent par les extrémités inférieure et supérieure de la fenêtre 19. Les fourreaux en forme de U inférieur 23 et supérieur 24, soudés sur la plaque tubulaire par des cordons de soudure tels que 25 et 26, protègent les branches 21 et 22 contre une détérioration par l'arête de la "boutonnière" lorsque l'on retire le tube en épingle à cheveux. Des espaceurs, non représentés, maintiennent l'écartement entre les deux branches du tube au niveau de ces "boutonnières". 'FIGS. 3 and 4 show on a larger scale the "buttonholes" 19 allowing the elbows of the tube to pass through the tubular plates 13, 14, 15. The branches 21 and 22 pass through the lower and upper ends of the window 19. The lower 23 and upper 24 U-shaped sheaths, welded to the tube plate by weld beads such as 25 and 26, protect the branches 21 and 22 against deterioration by the edge of the "buttonhole" when remove the hairpin tube. Spacers, not shown, maintain the spacing between the two arms of the tube at these "buttonholes". ''

La figure 5 représente à plus grande échelle un orifice circulaire de passage de la branche rectiligne supérieure 10 du tube en épingle à cheveux. Un fourreau circulaire 27 est soudé sur les plaques tubulaires 13, 14, 15 par des cordons de soudure tels que 28. L'entretoise 18 est également soudée sur la plaque tubulaire par un cordon de soudure 29.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.

Le démontage et le remontage d'un tube en épingles à cheveux multiples tel que celui représenté en figure 1 s'effectuent comme suit. On coupe les tronçons de tube 7, 8 le reliant aux collecteurs d'arrivée et de sortie 5 et 6. On démonte la paroi 3 de l'enceinte faisant face à la plaque tubulaire 13. On tire alors le tube par ses boucles telles que 12 du côté de l'ouverture dégagée dans la paroi. Les boucles telles que 11 passent à travers les fenêtres 19 des plaques tubulaires 13, 14, 15 et ses longueurs droites d'arrivée et de sortie (10 + 8) et (9 + 7) passent à travers les fourreaux circulaires tels que 27. On retire entièrement le tube de l'enceinte 1.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 tube 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.

On effectue alors la réparation nécessaire sur le tube, puis on procède à son remontage. A cet effet, on présente dans les "boutonnières" de la plaque tubulaire 13 les coudes tels que 11 du tube, on les fait passer à travers celles-ci, puis à travers les fenêtres correspondantes des plaques tubulaires 14, 15, cependant que les longueurs droites (10 + 8) et (9 + 7) passent à travers les fourreaux circulaires 27 de ces mêmes plaques tubulaires, puis dans les ouvertures à travers la paroi de l'enceinte en face de la plaque tubulaire 14. On soude alors à nouveau les tronçons de tube 7 et 8 pour rétablir leur liaison avec les collecteurs 5 et 6. On peut alors refermer la paroi 3 de l'enceinte faisant face à la plaque tubulaire 13 et remettre en service l'échangeur.The necessary repair is then carried out on the tube, then it is reassembled. For this purpose, 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 tubular plates 14, 15, while the straight lengths (10 + 8) and (9 + 7) pass through the circular sleeves 27 of these same tubular 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.

Claims (2)

1/ Echangeur de chaleur démontable entre un fluide circulant à l'intérieur de tubes horizontaux en épingles à cheveux multiples (2), montés sur des plaques tubulaires (13, 14, 15) verticales orthogonales aux tubes, et un gaz chargé de particules solides circulant autour de ces tubes (2) à l'intérieur d'une enceinte (1) en forme de parallélépipède rectangle, chaque tube étant relié à l'entrée et à la sortie par des branches (7, 8) passant à travers des parois de l'enceinte, lesdites plaques tubulaires (13, 14, 15) étant percées de fenêtres ovales (19) formant boutonnières au droit des coudes des tubes et d'ouvertures circulaires (20) au droit des longueurs droites des tubes, caractérisé en ce que les fenêtres ovales sont percées au droit des coudes (11) des tubes (2) situés du côté de la paroi traversée par les branches (7, 8) et en ce que la paroi (3) de l'enceinte opposée à celle traversée par les branches (7, 8) est démontable. 1 / Removable heat exchanger between a fluid circulating inside horizontal tubes in multiple hairpins (2), mounted on tubular plates (13, 14, 15) vertical orthogonal to the tubes, and a gas charged with solid particles circulating around these tubes (2) inside an enclosure (1) in the shape of a rectangular parallelepiped, each tube being connected to the inlet and the outlet by branches (7, 8) passing through walls of the enclosure, said tubular plates (13, 14, 15) being pierced with oval windows (19) forming buttonholes in line with the bends of the tubes and circular openings (20) in line with the straight lengths of the tubes, characterized in that that the oval windows are pierced in line with the elbows (11) of the tubes (2) situated on the side of the wall crossed by the branches (7, 8) and in that the wall (3) of the enclosure opposite to that crossed by the branches (7, 8) is removable. 2/ Echangeur de chaleur selon la revendication 1, caractérisé en ce que les fenêtres ovales (10) et les ouvertures circulaires (20) sont munies de fourreaux (23, 24, 27). 2 / Heat exchanger according to claim 1, characterized in that the oval windows (10) and the circular openings (20) are provided with sleeves (23, 24, 27).
EP91400333A 1990-02-14 1991-02-12 Dismountable heat exchanger with hairpin tubes in parallel planes Expired - Lifetime EP0442795B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9001748A FR2658278A1 (en) 1990-02-14 1990-02-14 REMOVABLE HEAT EXCHANGER HAVING HAIRPIN TUBES ARRANGED IN PARALLEL PLANS.
FR9001748 1990-02-14

Publications (2)

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

Family

ID=9393704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91400333A Expired - Lifetime EP0442795B1 (en) 1990-02-14 1991-02-12 Dismountable heat exchanger with hairpin tubes in parallel planes

Country Status (6)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29510720U1 (en) * 1995-07-01 1995-09-07 BDAG Balcke-Dürr AG, 40882 Ratingen Heat exchanger
JP2014105883A (en) * 2012-11-22 2014-06-09 Mitsubishi Heavy Ind Ltd Fin tube heat exchanger

Citations (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
FR2375563A1 (en) * 1976-12-23 1978-07-21 Dorr Oliver Inc FLUIDIZED BED HEATING UNIT
FR2409478A1 (en) * 1977-11-16 1979-06-15 Stal Laval Apparat Ab WALL TO SUPPORT COILS ESPECIALLY FOR HEAT EXCHANGERS
GB2117503A (en) * 1982-03-29 1983-10-12 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

Patent Citations (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
FR2375563A1 (en) * 1976-12-23 1978-07-21 Dorr Oliver Inc FLUIDIZED BED HEATING UNIT
FR2409478A1 (en) * 1977-11-16 1979-06-15 Stal Laval Apparat Ab WALL TO SUPPORT COILS ESPECIALLY FOR HEAT EXCHANGERS
GB2117503A (en) * 1982-03-29 1983-10-12 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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29510720U1 (en) * 1995-07-01 1995-09-07 BDAG Balcke-Dürr AG, 40882 Ratingen Heat exchanger
US5871045A (en) * 1995-07-01 1999-02-16 Bdag Balcke-Durr Aktiengesellschaft Heat exchanger
JP2014105883A (en) * 2012-11-22 2014-06-09 Mitsubishi Heavy Ind Ltd Fin tube heat exchanger

Also Published As

Publication number Publication date
ES2056590T3 (en) 1994-10-01
DE69102159T2 (en) 1994-09-08
EP0442795B1 (en) 1994-06-01
DE69102159D1 (en) 1994-07-07
DK0442795T3 (en) 1994-07-25
FR2658278A1 (en) 1991-08-16
ATE106541T1 (en) 1994-06-15

Similar Documents

Publication Publication Date Title
EP0912868B1 (en) Apparatus for exchanging heat between at least three fluids
EP0740949A1 (en) Plate type exchanger
EP0442795B1 (en) Dismountable heat exchanger with hairpin tubes in parallel planes
FR2559248A1 (en) HEAT EXCHANGER WITH TUBES
CN208952065U (en) Level-one low-level (stack-gas) economizer
FR2565338A1 (en) VERTICAL TUBE HEAT EXCHANGE PANEL FOR RECOVERY BOILERS, SUCH AS BLACK LIQUEUR BOILERS, OR HOUSEHOLD GARBAGE INCINERATION FURNACES, AND METHODS OF MANUFACTURING THE SAME
EP0364920A1 (en) Device for the suspension of horizontal heat-exchange tubes on a vertical carrier tube, and method of producing this device
EP0609157A1 (en) Steam-oven using direct gas heating
EP0831281B1 (en) Gas-liquid heat exchanger,and water heater having such a heat exchanger
FR2624401A1 (en) COOLED FLUIDIZING GRID
KR102646299B1 (en) Scale capture devices and scale capture systems using the same
FR2652638A1 (en) Heat exchanger for tomatoes
EP0647814A1 (en) Steam generator with pivoting blocking elements in the tube lane
BE1008224A4 (en) SPACER LAYOUT.
JP2021009007A (en) Heat exchanger, manufacturing method of the same, and heat exchange device
EP1143153A1 (en) Device for diminishing vibrations and shocks in a gaseous fluid conduit network, tee and conduit network so equipped
BE1012445A3 (en) Device for cooling a carrier gas fumes charge of a product.
FR2586290A1 (en) DEVICE FOR PROTECTING EXCHANGERS PLACED IN A CONDUIT OF FUMES CHARGED WITH ASH FILLED PARTICLES
EP0611940B1 (en) Rigid assembly, comprising two heat-exchangers and an expansion chamber
EP0131508A1 (en) Heat exchanger having an auxiliary cooling apparatus
WO2022163860A1 (en) Heat exchanger and flue gas treatment system
BE466085A (en)
SK208892A3 (en) Disassembleable nuclear fuel element
BE506861A (en)
BE372669A (en)

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

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19920217

17Q First examination report despatched

Effective date: 19930223

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

REF Corresponds to:

Ref document number: 106541

Country of ref document: AT

Date of ref document: 19940615

Kind code of ref document: T

REF Corresponds to:

Ref document number: 69102159

Country of ref document: DE

Date of ref document: 19940707

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940610

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

ITF It: translation for a ep patent filed

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

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2056590

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3012945

EAL Se: european patent in force in sweden

Ref document number: 91400333.0

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19990119

Year of fee payment: 9

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

Ref country code: DE

Payment date: 19990122

Year of fee payment: 9

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

Ref country code: SE

Payment date: 19990125

Year of fee payment: 9

Ref country code: DK

Payment date: 19990125

Year of fee payment: 9

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

Ref country code: AT

Payment date: 19990126

Year of fee payment: 9

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

Ref country code: CH

Payment date: 19990201

Year of fee payment: 9

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

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000212

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000212

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: 20000213

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 NON-PAYMENT OF DUE FEES

Effective date: 20000229

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000229

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000901

EUG Se: european patent has lapsed

Ref document number: 91400333.0

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20000901

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001201

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: 11

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: 11

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: LU

Payment date: 20020128

Year of fee payment: 12

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

Ref country code: GR

Payment date: 20020131

Year of fee payment: 12

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

Ref country code: FR

Payment date: 20020207

Year of fee payment: 12

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

Ref country code: ES

Payment date: 20020214

Year of fee payment: 12

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

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020228

BERE Be: lapsed

Owner name: STEIN INDUSTRIE

Effective date: 20020228

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

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030212

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030212

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030213

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030904

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031031

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030213

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050212