EP0267350B1 - Assembly by flanges of tube plates in heat exchangers comprising solid titanium tube plates - Google Patents

Assembly by flanges of tube plates in heat exchangers comprising solid titanium tube plates Download PDF

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Publication number
EP0267350B1
EP0267350B1 EP86870168A EP86870168A EP0267350B1 EP 0267350 B1 EP0267350 B1 EP 0267350B1 EP 86870168 A EP86870168 A EP 86870168A EP 86870168 A EP86870168 A EP 86870168A EP 0267350 B1 EP0267350 B1 EP 0267350B1
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EP
European Patent Office
Prior art keywords
shell
flange
tube plate
face
tube
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
EP86870168A
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German (de)
French (fr)
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EP0267350A1 (en
Inventor
Alfred Camille Emerent Ghislain Montagne
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Hamon Sobelco SA
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Hamon Sobelco SA
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Filing date
Publication date
Application filed by Hamon Sobelco SA filed Critical Hamon Sobelco SA
Priority to EP86870168A priority Critical patent/EP0267350B1/en
Priority to AT86870168T priority patent/ATE51442T1/en
Priority to DE8686870168T priority patent/DE3669918D1/en
Priority to ES86870168T priority patent/ES2013726B3/en
Publication of EP0267350A1 publication Critical patent/EP0267350A1/en
Application granted granted Critical
Publication of EP0267350B1 publication Critical patent/EP0267350B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/086—Heat exchange elements made from metals or metal alloys from titanium or titanium alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/20—Fastening; Joining with threaded elements

Definitions

  • the present invention relates to the assembly of tubular plates on a sleeve of a tubular heat exchanger according to the preamble of claim 1.
  • EP-A 123 940 discloses an assembly of the plates on a sleeve of a condenser water-cooled, condenser in which the steel sleeve delimits with the tubular plates mounted at its two ends a vapor condensation enclosure by heat exchange with the water passing through the tubes which extend in said enclosure, of a tubular plate at the other, each tubular plate on the other hand forming, with a corresponding bottom, a compartment respectively for inlet and outlet of the cooling water.
  • the tubular plate is either welded to the body of the exchanger, or clamped between two flanges, one of which is fixed to the cuff and the other to the corresponding bottom of the exchanger.
  • a titanium plating is applied by explosion to the cuff or the cuff flange, at the point of contact with the tube plate.
  • the seal between the titanium cladding and the tube plate is ensured by a weld bead. This must be done before threading and fixing the tubes in the device, otherwise the space due to the tubes no longer allows this to be done.
  • the reference notation 1 designates a carbon steel sleeve
  • 2 designates a tubular plate also made of carbon steel, this plate being traversed by a multitude of tubes 3 made of titanium. These also pass through another similar tubular plate at the other end of the cuff.
  • the cuff and the tubular plates delimit an enclosure B which receives the steam entering from the end coming from a turbine.
  • the titanium tubes 3 are traversed by a fluid such as cold sea water entering through a bottom compartment C. On contact with the tubes 3, the vapor condenses and the condensate leaves at the bottom of the enclosure B. The sea water heated by this same contact passes into the other compartment of the bottom C of the condenser from where it is evacuated, as can be seen in FIG. 4.
  • the various parts of the assembly are welded together, the welds being designated 4.
  • the tube plate 2 is plated with titanium 5, the plating in titanium being produced by explosion. and removed on the periphery of the plate.
  • a covering defect located in the transition zone marked A quickly leads to significant and localized corrosion with perforation. This causes pollution of enclosure B by the fluid circulating in the enclosure.
  • the known technique for overcoming this technical problem illustrated in FIG. 3 consists in using a massive titanium plate 2 clamped between flanges 7, 8. This titanium plate 2 cannot in fact be welded to the carbon steel of the sleeve 1, flanges 7, 8 and from the bottom of the condenser.
  • the covering or protective coating 6 relates only to the wall 1a of the enclosure C and any defect would only lead to an outward leak without pollution of the enclosure B.
  • this solution requires the establishment of a seal 9 between the flange 7 of the cuff 1 and the solid plate 2 and another seal 10 between the latter and the flange 8 of the bottom 1a of the condenser.
  • the joint is made of a special material such as braided asbestos or a synthetic resin loaded with glass fibers.
  • the seal 10 is made of a more ordinary material such as synthetic rubber or neoprene.
  • a steam inlet 11, a condensate outlet 12, a seawater inlet 13 and a seawater outlet 14 can be distinguished.
  • Variations in the sealing of the seals over time can cause either leaks to the outside or air inlets.
  • each tubular plate is fixed on the steam side to the flange of the cuff by screws and in that it is provided means cooperating with the face of the flange of the cuff contiguous to the tube plate and the peripheral face of the tube plate to receive and tighten a seal outside the cuff.
  • These means include in particular a floating flange intended to marry the assembly formed by the tubular plate and the cuff flange, this floating flange having a chamfered part or the equivalent for delimiting with the face of the cuff flange and the face of the tube plate a housing for the seal, the seal pressing against the aforementioned faces when the floating flange is tightened against the flange of the cuff.
  • the massive tubular plate 2 made of titanium or other material is mechanically fixed by means of screws 15 to the flange 7 welded to the sleeve 1 on the steam side B.
  • the mechanical assembly by screws can be done by the interior as shown in Figure 5 or the exterior as shown in Figure 6.
  • a floating flange 16 in one or more pieces is inserted to match with the required tolerances the assembly formed by the tubular plate 2 and the flange 7 of the body 1.
  • This floating flange 16 is inserted so that after placement a housing is formed for a seal 17 made of elastomer between the face 7a of the flange 7 of the body, the peripheral face 2a of the tubular plate 2 and the chamfered part 16a of the floating flange 16.
  • This is held in place by a series of threaded rods 18 fitted a base 19 and nuts 20 at their ends located on the side of the cuff. These same threaded rods serve to fix, by the nuts 21, the bottoms 1a to the tubular plate by means of the seal 10.
  • the base 19 can be in place of the nut 20 and the latter can be in place of the base 19 by adapting the notch provided in the flange 16.
  • the seal 17 of appropriate dimensions and shapes placed in its housing is pressed against the three faces 7a, 16a and 2a thereof when the floating flange 16 is clamped against the flange 7 of the body.

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  • 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)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

1. Mounting of the tube plates onto a shell of a tubular heat exchanger, in which exchanger the carbon steel shell (1) defines, together with the solid titanium tube plates (2) mounted at its two ends, a chamber for the condensation of steam (B) by heat exchange with a fluid such as sea water running through the tubes which extend, in the chamber (B), from one tube plate to the other, each tube plate (2) forming, moreover, together with a corresponding carbon steel cover (1_a), a chamber (C) for the inlet (13) and outlet (14) respectively of the sea water or of a similar fluid, each tube plate being clamped between two flanges, one (7) of which is fastened to the shell (1) and the other (8) is fastened to the corresponding cover (1_a) of the exchanger, characterized in that each tube plate (2) is fastened on the steam side (B) to the flange (7) of the shell (1) by screws (15) and in that means (16, 16a, 19) are provided which interact with the face (7a) of the flange (7), the face adjacent to the tube plate (2), and with the peripheral face (2a) of the tube plate (2), in order to accommodate and hold tightly a sealing strip (17) outside the shell.

Description

La présente invention concerne l'assemblage de plaques tubulaires sur une manchette d'un échangeur thermique tubulaire selon le préambule de la revendication 1.The present invention relates to the assembly of tubular plates on a sleeve of a tubular heat exchanger according to the preamble of claim 1.

Ces échangeurs exigent à la fois une étanchéité parfaite de l'assemblage tube/plaque et une résistance à la corrosion.These exchangers require both perfect sealing of the tube / plate assembly and resistance to corrosion.

A cet effet il est connu, ainsi qu'on le verra ci-après en se référant aux figures 1 à 4 des dessins, d'utiliser des tubes soudés sur une plaque tubulaire qui peut être soit massive en titane, soit en acier au carbone plaqué ou revêtu de titane en raison de l'impossibilité de souder directement le titane à l'acier.To this end, it is known, as will be seen below with reference to FIGS. 1 to 4 of the drawings, to use tubes welded on a tubular plate which can be either solid in titanium or in carbon steel plated or coated with titanium due to the impossibility of directly welding titanium to steel.

La plaque tubulaire est suivant le cas, soit soudée au corps de l'échangeur (figures 1 et 2), soit pincée entre brides (figures 3 et 4) EP-A 123 940 divulgue un assemblage des plaques sur une manchette d'un condenseur refroidi par eau, condenseur dans lequel la manchette en acier délimite avec les plaques tubulaires montées à ses deux extrémités une enceinte de condensation de vapeur par échange thermique avec l'eau parcourant les tubes qui s'étendent dans ladite enceinte, d'une plaque tubulaire à l'autre, chaque plaque tubulaire formant d'autre part, avec un fond correspondant, un compartiment respectivement d'entrée et de sortie de l'eau de refroidissement.The tubular plate is, as the case may be, either welded to the body of the exchanger (Figures 1 and 2), or clamped between flanges (Figures 3 and 4) EP-A 123 940 discloses an assembly of the plates on a sleeve of a condenser water-cooled, condenser in which the steel sleeve delimits with the tubular plates mounted at its two ends a vapor condensation enclosure by heat exchange with the water passing through the tubes which extend in said enclosure, of a tubular plate at the other, each tubular plate on the other hand forming, with a corresponding bottom, a compartment respectively for inlet and outlet of the cooling water.

Selon ce document antérieur la plaque tubulaire est soit soudée au corps de l'échangeur, soit pincée entre deux brides dont l'une est fixée à la manchette et l'autre au fond correspondant de l'échangeur. Dans l'un et l'autre cas, un placage de titane est appliqué par explosion sur la manchette ou la bride de la manchette, à l'endroit de contact avec la plaque tubulaire.According to this prior document, the tubular plate is either welded to the body of the exchanger, or clamped between two flanges, one of which is fixed to the cuff and the other to the corresponding bottom of the exchanger. In both cases, a titanium plating is applied by explosion to the cuff or the cuff flange, at the point of contact with the tube plate.

L'étanchéité entre le placage de titane et la plaque tubulaire est assurée par un cordon de soudure. Celui-ci doit être réalisé avant enfilage et fixation des tubes dans l'appareil sinon l'encombrement dû aux tubes ne permet plus de le faire.The seal between the titanium cladding and the tube plate is ensured by a weld bead. This must be done before threading and fixing the tubes in the device, otherwise the space due to the tubes no longer allows this to be done.

Le contrôle de l'étanchéité de cette soudure est dès lors très difficile à réaliser si on veut le faire avant enfilage des tubes. Après enfilage et fixation des tubes, ce contrôle peut se faire mais la réparation des fuites éventuelles à cette soudure n'est plus possible parce que la soudure n'est plus accessible.Checking the tightness of this weld is therefore very difficult to do if you want to do it before threading the tubes. After threading and fixing the tubes, this check can be done but the repair of any leaks from this weld is no longer possible because the weld is no longer accessible.

Lorsque la plaque tubulaire est fixée par brides, un autre gros défaut apparaît lors de l'enlèvement des compartiments à eau, notamment lors de l'ouverture de l'échangeur pour inspection. Après débou- lonnage de la bride et enlèvement du fond, la lourde plaque tubulaire en titane alourdie d'une partie du poids des tubes est retenue à la manchette par la seule soudure d'étanchéité qui conditionne la vie de l'assemblage.When the tubular plate is fixed by flanges, another big defect appears during the removal of the water compartments, in particular during the opening of the exchanger for inspection. After unbuttoning the flange and removing the bottom, the heavy titanium tube plate weighed down by part of the weight of the tubes is retained at the cuff by the only sealing weld which conditions the life of the assembly.

Dans les dessins relatifs à l'art antérieur,

  • - la figure 1 illustre un assemblage de manchette et de plaque tubulaire au niveau de la jonction entre la manchette et le fond de l'échangeur de chaleur;
  • - la figure 2 montre un détail de l'assemblage de la figure 1 avec un point de corrosion;
  • - la figure 3 illustre une variante d'assemblage;
  • - la figure 4 donne une vue d'ensemble d'un condenseur.
In the drawings relating to the prior art,
  • - Figure 1 illustrates a cuff and tube plate assembly at the junction between the cuff and the bottom of the heat exchanger;
  • - Figure 2 shows a detail of the assembly of Figure 1 with a point of corrosion;
  • - Figure 3 illustrates an alternative assembly;
  • - Figure 4 gives an overview of a condenser.

Dans ces différentes figures, les mêmes notations de référence désignent les mêmes éléments.In these different figures, the same reference notations designate the same elements.

Sur la figure 1 la notation de référence 1 désigne une manchette en acier au carbone, 2 désigne une plaque tubulaire également en acier au carbone, cette plaque étant traversée par une multitude de tubes 3 en titane. Ceux-ci traversent également une autre plaque tubulaire similaire, à l'autre extrémité de la manchette. La manchette et les plaques tubulaires délimitent une enceinte B qui reçoit la vapeur entrant par le bout en provenance d'une turbine. Les tubes 3 en titane sont parcourus par un fluide tel que l'eau de mer froide entrant par un compartiment de fond C. Au contact des tubes 3, la vapeur se condense et le condensat sort à la partie inférieure de l'enceinte B. L'eau de mer réchauffée par ce même contact passe dans l'autre compartiment du fond C du condenseur d'où elle est évacuée, ainsi qu'on le voit sur la figure 4.In FIG. 1, the reference notation 1 designates a carbon steel sleeve, 2 designates a tubular plate also made of carbon steel, this plate being traversed by a multitude of tubes 3 made of titanium. These also pass through another similar tubular plate at the other end of the cuff. The cuff and the tubular plates delimit an enclosure B which receives the steam entering from the end coming from a turbine. The titanium tubes 3 are traversed by a fluid such as cold sea water entering through a bottom compartment C. On contact with the tubes 3, the vapor condenses and the condensate leaves at the bottom of the enclosure B. The sea water heated by this same contact passes into the other compartment of the bottom C of the condenser from where it is evacuated, as can be seen in FIG. 4.

Les différentes pièces de l'assemblage sont soudées entre elles, les soudures étant désignées 4. Du côté où elle est en contact avec l'eau de mer, la plaque tubulaire 2 est plaquée de titane 5, le placage en titane étant réalisé par explosion et enlevé sur la périphérie de la plaque.The various parts of the assembly are welded together, the welds being designated 4. On the side where it is in contact with seawater, the tube plate 2 is plated with titanium 5, the plating in titanium being produced by explosion. and removed on the periphery of the plate.

A cette périphérie, la protection de l'acier au carbone contre la corrosion accélérée par le couple galvanique entre l'acier au carbone et le titane est assurée par un revêtement 6 qui assure, du côté fluide corrosif (côté C), un isolement le meilleur possible entre la partie recouverte de titane et l'acier au carbone.At this periphery, the protection of carbon steel against corrosion accelerated by the galvanic couple between carbon steel and titanium is ensured by a coating 6 which ensures, on the corrosive fluid side (side C), the insulation best possible between the part covered with titanium and carbon steel.

L'application correcte d'un revêtement de protection sur l'acier au carbone et jusqu'au titane est une opération difficile dont le résultat satisfaisant ne peut être assuré avec une parfaite certitude et qui demande un contrôle régulier.The correct application of a protective coating on carbon steel and up to titanium is a difficult operation, the satisfactory result of which cannot be ensured with perfect certainty and which requires regular inspection.

Un défaut de recouvrement localisé dans la zone de transition repérée A (voir figure 2) amène rapidement une corrosion importante et localisée avec perforation. Celle-ci entraîne une pollution de l'enceinte B par le fluide circulant dans l'enceinte.A covering defect located in the transition zone marked A (see Figure 2) quickly leads to significant and localized corrosion with perforation. This causes pollution of enclosure B by the fluid circulating in the enclosure.

La technique connue pour pallier ce problème technique illustrée sur la figure 3, consiste à utiliser une plaque massive 2 en titane pincée entre brides 7, 8. Cette plaque en titane 2 ne peut en effet pas être soudée à l'acier au carbone de la manchette 1, des brides 7, 8 et du fond la du condenseur.The known technique for overcoming this technical problem illustrated in FIG. 3 consists in using a massive titanium plate 2 clamped between flanges 7, 8. This titanium plate 2 cannot in fact be welded to the carbon steel of the sleeve 1, flanges 7, 8 and from the bottom of the condenser.

De cette manière le recouvrement ou revêtement de protection 6 ne concerne que la paroi 1a de l'enceinte C et tout défaut n'amènerait qu'une fuite vers l'extérieur sans pollution de l'enceinte B. Par contre, cette solution nécessite la mise en place d'un joint 9 entre la bride 7 de la manchette 1 et la plaque massive 2 et d'un autre joint 10 entre celle-ci et la bride 8 du fond 1 a du condenseur.In this way the covering or protective coating 6 relates only to the wall 1a of the enclosure C and any defect would only lead to an outward leak without pollution of the enclosure B. On the other hand, this solution requires the establishment of a seal 9 between the flange 7 of the cuff 1 and the solid plate 2 and another seal 10 between the latter and the flange 8 of the bottom 1a of the condenser.

Le joint est réalisé en un matériau spécial tel que l'amiante tressée ou une résine synthétique chargée de fibres de verre. Le joint 10 est réalisé en un matériau plus ordinaire tel qu'un caoutchouc synthétique ou néoprène.The joint is made of a special material such as braided asbestos or a synthetic resin loaded with glass fibers. The seal 10 is made of a more ordinary material such as synthetic rubber or neoprene.

Le joint 9, une fois en place, et les tubes droits étant fixés aux deux plaques de l'appareil, ne peuvent plus être remplacés ainsi qu'on le voit sur la vue d'ensemble qui est la figure 4.The seal 9, once in place, and the straight tubes being fixed to the two plates of the apparatus, can no longer be replaced as can be seen in the overview which is in FIG. 4.

Sur cette même figure 4, on distingue en plus des éléments déjà décrits, une entrée de vapeur 11, une sortie de condensat 12, une entrée d'eau de mer 13 et une sortie d'eau de mer 14.In this same figure 4, in addition to the elements already described, a steam inlet 11, a condensate outlet 12, a seawater inlet 13 and a seawater outlet 14 can be distinguished.

Les variations d'étanchéité des joints au cours du temps peuvent provoquer soit des fuites vers l'extérieur, soit des entrées d'air.Variations in the sealing of the seals over time can cause either leaks to the outside or air inlets.

Pour remédier aux inconvénients décrits ci-dessus, l'assemblage des plaques tubulaires pincées entre brides selon l'invention se caractérise en ce que chaque plaque tubulaire est fixée côté vapeur à la bride de la manchette par des vis et en ce qu'il est prévu des moyens coopérant avec la face de la bride de la manchette contiguë à la plaque tubulaire et la face périphérique de la plaque tubulaire pour recevoir et serrer un joint d'étanchéité extérieur à la manchette. Ces moyens comprennent en particulier une bride flottante destinée à épouser l'assemblage formé par la plaque tubulaire et la bride de la manchette, cette bride flottante présentant une partie chanfreinée ou l'équivalent pour délimiter avec la face de la bride de la manchette et la face de la plaque tubulaire un logement pour le joint, le joint s'appuyant contre les faces précitées lorsque la bride flottante est serrée contre la bride de la manchette.To overcome the drawbacks described above, the assembly of the pinched tubular plates between flanges according to the invention is characterized in that each tubular plate is fixed on the steam side to the flange of the cuff by screws and in that it is provided means cooperating with the face of the flange of the cuff contiguous to the tube plate and the peripheral face of the tube plate to receive and tighten a seal outside the cuff. These means include in particular a floating flange intended to marry the assembly formed by the tubular plate and the cuff flange, this floating flange having a chamfered part or the equivalent for delimiting with the face of the cuff flange and the face of the tube plate a housing for the seal, the seal pressing against the aforementioned faces when the floating flange is tightened against the flange of the cuff.

L'invention sera décrite ci-après en se référant aux figures 5 et 6 des dessins qui illustrent deux réalisations préférées d'un assemblage selon la présente invention.The invention will be described below with reference to Figures 5 and 6 of the drawings which illustrate two preferred embodiments of an assembly according to the present invention.

Comme représenté sur les figures 5 et 6, la plaque tubulaire massive 2 en titane ou autre matière est fixée mécaniquement au moyen de vis 15 à la bride 7 soudée à la manchette 1 côté vapeur B. L'assemblage mécanique par vis peut se faire de l'intérieur comme représenté sur la figure 5 ou de l'extérieur comme représenté sur la figure 6.As shown in FIGS. 5 and 6, the massive tubular plate 2 made of titanium or other material is mechanically fixed by means of screws 15 to the flange 7 welded to the sleeve 1 on the steam side B. The mechanical assembly by screws can be done by the interior as shown in Figure 5 or the exterior as shown in Figure 6.

Une bride flottante 16 en une ou plusieurs pièces est insérée pour épouser avec les tolérances requises l'assemblage formé par la plaque tubulaire 2 et la bride 7 du corps 1. Cette bride flottante 16 est insérée pour que après placement un logement soit constitué pour un joint 17 en élastomère entre la face 7a de la bride 7 du corps, la face périphérique 2a de la plaque tubulaire 2 et la partie chanfreinée 16a de la bride flottante 16. Celle-ci est maintenue en place par une série de tiges filetées 18 équipées d'une embase 19 et d'écrous 20 à leurs extrémités situées du côté de la manchette. Ces mêmes tiges filetées servent à fixer, par les écrous 21, les fonds 1a sur la plaque tubulaire par l'intermédiaire du joint 10.A floating flange 16 in one or more pieces is inserted to match with the required tolerances the assembly formed by the tubular plate 2 and the flange 7 of the body 1. This floating flange 16 is inserted so that after placement a housing is formed for a seal 17 made of elastomer between the face 7a of the flange 7 of the body, the peripheral face 2a of the tubular plate 2 and the chamfered part 16a of the floating flange 16. This is held in place by a series of threaded rods 18 fitted a base 19 and nuts 20 at their ends located on the side of the cuff. These same threaded rods serve to fix, by the nuts 21, the bottoms 1a to the tubular plate by means of the seal 10.

En variante l'embase 19 peut se trouver à la place de l'écrou 20 et celui-ci peut se trouver à la place de l'embase 19 moyennant adaptation de l'encoche prévue dans la bride 16.As a variant, the base 19 can be in place of the nut 20 and the latter can be in place of the base 19 by adapting the notch provided in the flange 16.

Le joint 17 de dimensions et formes appropriées placé dans son logement est appuyé contre les trois faces 7a, 16a et 2a de celui-ci lorsque la bride flottante 16 est serrée contre la bride 7 du corps.The seal 17 of appropriate dimensions and shapes placed in its housing is pressed against the three faces 7a, 16a and 2a thereof when the floating flange 16 is clamped against the flange 7 of the body.

La solution ainsi proposée offre l'avantage que le joint d'étanchéité 17 est toujours remplaçable. Il suffit pour cela de desserrer l'assemblage 18-20.The solution thus proposed has the advantage that the seal 17 is always replaceable. You just have to loosen the assembly 18-20.

Claims (5)

1. Mounting of the tube plates onto a shell of a tubular heat exchanger, in which exchanger the carbon steel shell (1) defines, together with the solid titanium tube plates (2) mounted at its two ends, a chamber for the condensation of steam (B) by heat exchange with a fluid such as sea water running through the tubes which extend, in the chamber (B), from one tube plate to the other, each tube plate (2) forming, moreover, together with a corresponding carbon steel cover (1a), a chamber (C) for the inlet (13) and outlet (14) respectively of the sea water or of a similar fluid, each tube plate being clamped between two flanges, one (7) of which is fastened to the shell (1) and the other (8) is fastened to the corresponding cover (1a) of the exchanger, characterized in that each tube plate (2) is fastened on the steam side (B) to the flange (7) of the shell (1) by screws (15) and in that means (16, 16a, 19) are provided which interact with the face (7a) of the flange (7), the face adjacent to the tube plate (2), and with the peripheral face (2a) of the tube plate (2), in order to accommodate and hold tightly a sealing strip (17) outside the shell.
2. Mounting according to Claim 1, characterized in that a floating flange (16) is provided, intended to hug the mounting formed by the tube plate (2) and the flange (7) of the shell (1), this floating flange (16) having a bevelled or equivalently shaped part (16a) in order to define, together with the face (7a) of the flange (7) of the shell (1) and the face (2a) of the tube plate (2), a housing for the seal (17), the seal (17) bearing against the abovementioned faces (7a, 2a and 16a) when the floating flange (16) is held tightly against the flange (7) of the shell (1).
3. Mounting according to Claim 1, characterized in that the floating flange (16) is held in place by a series of threaded rods (18) equipped with a collar (19) and with nuts (20) at their ends situated on the shell side.
4. Mounting according to any one of Claims 1 to 3, characterized in that the fastening of the tube plate (2) to the flange (7) by the screws (15) is carried out inside the shell (1).
5. Mounting according to any one of Claims 1 to 3, characterized in that the fastening of the tube plate (2) to the flange (7) by the screws (15) is carried out outside the shell (1).
EP86870168A 1986-11-13 1986-11-13 Assembly by flanges of tube plates in heat exchangers comprising solid titanium tube plates Expired - Lifetime EP0267350B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP86870168A EP0267350B1 (en) 1986-11-13 1986-11-13 Assembly by flanges of tube plates in heat exchangers comprising solid titanium tube plates
AT86870168T ATE51442T1 (en) 1986-11-13 1986-11-13 ASSEMBLY THROUGH FLANGES OF TUBE PLATES IN HEAT EXCHANGER CONTAINING SOLID TITANIUM TUBE PLATES.
DE8686870168T DE3669918D1 (en) 1986-11-13 1986-11-13 ASSEMBLED THROUGH FLANGES OF TUBE PLATES IN HEAT EXCHANGERS CONTAINING SOLID TITANIUM TUBE PLATES.
ES86870168T ES2013726B3 (en) 1986-11-13 1986-11-13 TUBULAR PLATE FLANGE ASSEMBLY ON RADIATORS, BEHAVIOR SOLID TITANIUM TUBULAR PLATES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86870168A EP0267350B1 (en) 1986-11-13 1986-11-13 Assembly by flanges of tube plates in heat exchangers comprising solid titanium tube plates

Publications (2)

Publication Number Publication Date
EP0267350A1 EP0267350A1 (en) 1988-05-18
EP0267350B1 true EP0267350B1 (en) 1990-03-28

Family

ID=8196550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86870168A Expired - Lifetime EP0267350B1 (en) 1986-11-13 1986-11-13 Assembly by flanges of tube plates in heat exchangers comprising solid titanium tube plates

Country Status (4)

Country Link
EP (1) EP0267350B1 (en)
AT (1) ATE51442T1 (en)
DE (1) DE3669918D1 (en)
ES (1) ES2013726B3 (en)

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CN104969023A (en) * 2012-12-07 2015-10-07 西班牙博格华纳排放系统公司 Heat exchanger

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59004704D1 (en) * 1990-12-05 1994-03-31 Asea Brown Boveri Water cooled condenser.
NL1011503C2 (en) * 1999-03-09 2000-09-14 Peter Plukkel Heat exchanger for cooling exhaust gases uses assembly of many straight pipes which pass through cylindrical cooling jacket
CN103162557B (en) * 2011-12-14 2016-01-27 孟祥成 Detachable pressure-tolerant spiral-plate heat exchanger
CN105910474B (en) * 2016-06-29 2018-03-30 李志典 More tubular sheet heat exchangers
CN107084887B (en) * 2017-06-20 2023-07-28 沈阳汇博热能设备有限公司 Detachable tube bundle tube side reliability pressure testing device

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Publication number Priority date Publication date Assignee Title
US1511836A (en) * 1922-12-04 1924-10-14 Schutte & Koerting Co Heat-exchange apparatus
FR623803A (en) * 1925-11-02 1927-07-01 Improvements to tube bundle heat exchangers
US1884080A (en) * 1931-12-28 1932-10-25 Westinghouse Electric & Mfg Co Heat transfer apparatus
FR1537988A (en) * 1967-07-12 1968-08-30 Danto Rogeat & Co Improvement in tubular heat exchangers
DE1812560A1 (en) * 1968-12-04 1970-06-18 Steinmueller Gmbh L & C Tubular heat transmission system with - pressure tight housing
CH664626A5 (en) * 1983-04-28 1988-03-15 Bbc Brown Boveri & Cie Wassergekuehlter capacitor.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104969023A (en) * 2012-12-07 2015-10-07 西班牙博格华纳排放系统公司 Heat exchanger
CN104969023B (en) * 2012-12-07 2017-06-13 西班牙博格华纳排放系统公司 Heat exchanger

Also Published As

Publication number Publication date
EP0267350A1 (en) 1988-05-18
DE3669918D1 (en) 1990-05-03
ES2013726B3 (en) 1990-06-01
ATE51442T1 (en) 1990-04-15

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