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EP0068957A1 - Distributing device for multitubular heat exchangers - Google Patents

Distributing device for multitubular heat exchangers Download PDF

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Publication number
EP0068957A1
EP0068957A1 EP82401059A EP82401059A EP0068957A1 EP 0068957 A1 EP0068957 A1 EP 0068957A1 EP 82401059 A EP82401059 A EP 82401059A EP 82401059 A EP82401059 A EP 82401059A EP 0068957 A1 EP0068957 A1 EP 0068957A1
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EP
European Patent Office
Prior art keywords
cylindrical part
tubes
tube
inlet chamber
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
EP82401059A
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German (de)
French (fr)
Other versions
EP0068957B1 (en
Inventor
Roland Kotwica
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.)
Norsolor SA
Original Assignee
Chimique Des Charbonnages Sa Ste
Chimique des Charbonnages SA
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Priority to AT82401059T priority Critical patent/ATE9840T1/en
Publication of EP0068957A1 publication Critical patent/EP0068957A1/en
Application granted granted Critical
Publication of EP0068957B1 publication Critical patent/EP0068957B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0282—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by varying the geometry of conduit ends, e.g. by using inserts or attachments for modifying the pattern of flow at the conduit inlet or outlet
    • 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
    • F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
    • F28D3/04—Distributing arrangements

Definitions

  • the present invention relates to a liquid distributor device for multi-tubular falling film heat exchangers and an exchanger provided with said device.
  • a multitubular heat exchanger consists, by definition, of a bundle of parallel tubes and a casing. Two fluid circuits are to be considered: the first is outside the tubes, the second inside the tubes. An inlet chamber receives the fluid which will be distributed inside the tubes and an outlet chamber receives the fluid having circulated in said tubes. The isolation between the two fluid circuits is ensured by two tubular plates on which the ends of the bundle tubes are welded.
  • the fluid circulating inside the tubes is a mixture of an undispersed liquid phase and a gaseous phase, for example of a liquid phase in the presence of its saturated vapor, an inequality in the distribution of the liquid phase between the tubes constituting the bundle.
  • French Patent No. 2,268,178 describes the installation, in the inlet chamber of an exchanger, of an openwork attached cover. This added cover is open at its top (located at the entrance to the inlet chamber of the exchanger).
  • French Patent No. 2,280,436 describes a dispensing device formed by a conical or frustoconical cover pierced with orifices over its entire surface; the top of the cover can be flattened and can include a central orifice; the device is tightly connected to the widest edge of the envelope tube.
  • German Patent No. 2,232,074 describes a device consisting of a massive and compact plate placed in the inlet chamber of an exchanger receiving a mixture of gas and liquid at high speed.
  • the devices according to the first two patents above are not satisfactory if the liquid phase (in particular a solution) is in the presence of a gas phase.
  • the liquid entering from the upper part into the inlet chamber of the exchanger is always preferentially directed, although to a lesser extent compared to the exchangers not provided with these devices, towards the central tubes of the bundle.
  • the device according to the third patent above does not achieve the object of the invention.
  • the object of the present invention is to ensure a uniform distribution of a liquid flowing by gravity in each tube of a vertical multitubular heat exchanger.
  • the present invention relates to a liquid distributor device for multitubular heat exchangers with a falling film consisting of a cylindro-conical or cylindro-frustoconical cover, the conical or frustoconical part of said cover being closed.
  • This device is intended to be fixed in the inlet chamber of a multitubular exchanger in such a way that the liquid entering the inlet chamber flows on the outside of the conical or frustoconical part of the device and then on the outside of the cylindrical part, then is distributed through the orifice (s) made between the bottom of the cylindrical part and the tube plate of the exchanger before being distributed in the bundle of tubes.
  • the angle at the top ⁇ of the conical or frustoconical part is advantageously between 140 and 160 Q.
  • the outside diameter D of the cylindrical part is advantageously between 0.8 and 1.2 times the height H of said cylindrical part.
  • Figures 1 and 2 show a dispensing device.
  • the cover is cylindrical-conical
  • Figure 2 it is cylindrical-frustoconical.
  • the references have the following meanings: (1) is the cylindrical part of the cover, (2) the conical (a) or frustoconical part (b), H and D respectively, the height and the outside diameter of the part cylindrical (1), 0 (the angle at the top of the conical or frustoconical part.
  • FIG. 3 An example of such an exchanger is shown in Figure 3 in the appendix, in which (3) represents the shell of the exchanger, (4) the inlet chamber, (5) the inlet manifold, (8 ) the tube plate where the upper ends (7) of the tubes (6) constituting the bundle are welded.
  • the dispensing device (A) is fixed by means of fixing lugs (13), so that all the openings of the tubes are located inside the dispensing device and that one or more orifices are formed between the bottom of the cylindrical part (1) and the tube plate (8).
  • the height h of the opening (s) thus formed is between 5 and 15 mm.
  • the outside diameter D of the cylindrical part (1) is chosen so as to leave a space between 1 and 5 mm between the internal wall of the inlet chamber (4) and the external wall of the cylindrical part (1) .
  • the total height of the dispensing device is at most equal to the height of the inlet chamber of the exchanger.
  • this height is between 0.80 and 0.95 times the height of the chamber.
  • the distributor device is associated, in order to improve the distribution of the liquid on the internal wall of each tube of the exchanger, with a distributor device specific to each tube of the exchanger.
  • This distributor device is preferably constituted by a cylindrical piece, provided with helical coils, partially engaged in each tube (6) of the exchanger and fixed at the end (7) of each tube so as to provide a space for passage side of the liquid.
  • the overall diameter of the distributor device is slightly less than the inside diameter of the tube which will receive said distributor device.
  • An example of an exchanger of which each tube is provided with such a distributor device is shown in partial section in FIG.
  • (6) is a tube of the bundle whose end (7) is welded to the plate (8) , and (11) the distributor device comprising helical turns (12) fixed to the end of the tube (6) so that a space is provided for the lateral passage of the liquid.
  • the dispensing device makes it possible to obtain a uniform distribution of the liquid between the tubes of the multitubular bundle of an exchanger.
  • the distributor device according to the invention finds a particularly advantageous application in installations for the concentration and dehydration of maleic acid implementing the process of static evaporation using co-currents, according to the French patent application n ° 80 / 13.117.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Buffer Packaging (AREA)

Abstract

A distribution cap for a multitubular falling heat exchanger, in which the exchanger has a bundle of parallel tubes, an entrance channel for the tubes and a perpendicularly disposed distribution plate surrounding the entrance end of the tubes, the distribution cap is located in the entrance channel above the distribution plate and over the entrance ends of the tubes, and has cylindrical sidewalls and a closed top having sides that slope downwardly toward the cylindrical sidewalls of the cap.

Description

La présente invention concerne un dispositif distributeur de liquide pour échangeurs de chaleur multitubulaires à film tombant et un échangeur muni dudit dispositif.The present invention relates to a liquid distributor device for multi-tubular falling film heat exchangers and an exchanger provided with said device.

Un échangeur de chaleur multitubulaire est constitué, par définition, d'un faisceau de tubes parallèles et d'une enveloppe. Deux circuits de fluides sont à considérer : le premier est extérieur aux tubes, le second intérieur aux tubes. Une chambre d'entrée reçoit le fluide qui sera distribué à l'intérieur des tubes et une chambre de sortie reçoit le fluide ayant circulé dans lesdits tubes. L'isolement entre les deux circuits de fluide est assuré par deux plaques tubulaires sur lesquelles sont soudées les extrémités des tubes du faisceau.A multitubular heat exchanger consists, by definition, of a bundle of parallel tubes and a casing. Two fluid circuits are to be considered: the first is outside the tubes, the second inside the tubes. An inlet chamber receives the fluid which will be distributed inside the tubes and an outlet chamber receives the fluid having circulated in said tubes. The isolation between the two fluid circuits is ensured by two tubular plates on which the ends of the bundle tubes are welded.

Si le fluide circulant à l'intérieur des tubes est un mélange d'une phase liquide non dispersée et d'une phase gazeuse, par exemple d'une phase liquide en présence de sa vapeur saturante, on observe fréquemment une inégalité de la répartition de la phase liquide entre les tubes constituant le faisceau.If the fluid circulating inside the tubes is a mixture of an undispersed liquid phase and a gaseous phase, for example of a liquid phase in the presence of its saturated vapor, an inequality in the distribution of the liquid phase between the tubes constituting the bundle.

Des dispositifs tendant à améliorer la répartition d'une phase liquide homogène entre les tubes d'un échangeur multitubulaire ont été décrits. Ainsi le brevet français n° 2.268.178 décrit la mise en place, dans la chambre d'entrée d'un échangeur, d'un capot rapporté ajouré. Ce capot rapporté est ouvert à son sommet (situé à l'entrée de la chambre d'entrée de l'échangeur). Le brevet français n° 2.280.436 décrit un dispositif distributeur formé d'un capot conique ou tronconique percé d'orifices sur toute sa surface ; le sommet du capot peut être aplati et peut comprendre un orifice central ; le dispositif se rattache de façon étanche au bord le plus large du tube d'enveloppe. Le brevet allemand n° 2.232.074 décrit un dispositif constitué d'une plaque massive et compacte disposée dans la chambre d'entrée d'un échangeur recevant un mélange de gaz et liquide à grande vitesse.Devices tending to improve the distribution of a homogeneous liquid phase between the tubes of a multitubular exchanger have been described. Thus, French Patent No. 2,268,178 describes the installation, in the inlet chamber of an exchanger, of an openwork attached cover. This added cover is open at its top (located at the entrance to the inlet chamber of the exchanger). French Patent No. 2,280,436 describes a dispensing device formed by a conical or frustoconical cover pierced with orifices over its entire surface; the top of the cover can be flattened and can include a central orifice; the device is tightly connected to the widest edge of the envelope tube. German Patent No. 2,232,074 describes a device consisting of a massive and compact plate placed in the inlet chamber of an exchanger receiving a mixture of gas and liquid at high speed.

Les dispositifs selon les deux premiers brevets ci-dessus ne sont pas satisfaisants si la phase liquide (en particulier une solution) est en présence d'une phase gazeuse. Dans ce cas le liquide entrant par la partie supérieure dans la chambre d'entrée de l'échangeur se dirige toujours préférentiellement, bien que dans une moindre mesure par rapport aux échangeurs non munis de ces dispositifs, vers les tubes centraux du faisceau. Le dispositif selon le troisième brevet ci-dessus ne permet pas d'atteindre le but de l'invention.The devices according to the first two patents above are not satisfactory if the liquid phase (in particular a solution) is in the presence of a gas phase. In this case, the liquid entering from the upper part into the inlet chamber of the exchanger is always preferentially directed, although to a lesser extent compared to the exchangers not provided with these devices, towards the central tubes of the bundle. The device according to the third patent above does not achieve the object of the invention.

Le but de la présente invention est d'assurer une distribution uniforme d'un liquide coulant par gravité dans chaque tube d'un échangeur de chaleur multitubulaire vertical.The object of the present invention is to ensure a uniform distribution of a liquid flowing by gravity in each tube of a vertical multitubular heat exchanger.

Un objet de la. présente invention concerne un dispositif distributeur de liquide pour échangeurs de chaleur multitubulaire à film tombant constitué d'un capot cylindro-conique ou cylindro-tronconique, la partie conique ou tronconique dudit capot étant fermée. Ce dispositif est destiné à être fixé dans la chambre d'entrée d'un échangeur multitubulaire de telle façon que le liquide entrant dans la chambre d'entrée ruisselle sur l'extérieur de la partie conique ou tronconique du dispositif puis sur l'extérieur de la partie cylindrique, puis se répartisse à travers le ou les orifices ménagés entre le bas de la partie cylindrique et la plaque tubulaire de l'échangeur avant de se répartir dans le faisceau de tubes.An object of the. The present invention relates to a liquid distributor device for multitubular heat exchangers with a falling film consisting of a cylindro-conical or cylindro-frustoconical cover, the conical or frustoconical part of said cover being closed. This device is intended to be fixed in the inlet chamber of a multitubular exchanger in such a way that the liquid entering the inlet chamber flows on the outside of the conical or frustoconical part of the device and then on the outside of the cylindrical part, then is distributed through the orifice (s) made between the bottom of the cylindrical part and the tube plate of the exchanger before being distributed in the bundle of tubes.

L'angle au sommet α de la partie conique ou tronconique est avantageusement compris entre 140 et 160Q. Le diamètre extérieur D de la partie cylindrique est avantageusement compris entre 0,8 et 1,2 fois la hauteur H de ladite partie cylindrique.The angle at the top α of the conical or frustoconical part is advantageously between 140 and 160 Q. The outside diameter D of the cylindrical part is advantageously between 0.8 and 1.2 times the height H of said cylindrical part.

Un mode particulier de réalisation de l'invention sera maintenant décrit en se référant aux dessins annexés.A particular embodiment of the invention will now be described with reference to the accompanying drawings.

Les figures 1 et 2 représentent un dispositif distributeur. Sur la figure 1 le capot est cylindro-conique, sur la figure 2 il est cylindro-tronconique. Sur ces deux figures les repères ont les significations suivantes : (1) est la partie cylindrique du capot, (2) la partie conique (a) ou tronconique (b), H et D respectivement, la hauteur et le diamètre extérieur de la partie cylindrique (1), 0( l'angle au sommet de la partie conique ou tronconique.Figures 1 and 2 show a dispensing device. In Figure 1 the cover is cylindrical-conical, in Figure 2 it is cylindrical-frustoconical. In these two figures, the references have the following meanings: (1) is the cylindrical part of the cover, (2) the conical (a) or frustoconical part (b), H and D respectively, the height and the outside diameter of the part cylindrical (1), 0 (the angle at the top of the conical or frustoconical part.

Un autre objet de la présente invention concerne un échangeur de chaleur multitubulaire muni du dispositif distributeur décrit ci-dessus. Un exemple d'un tel échangeur est représenté à la figure 3 en annexe, sur laquelle (3) représente l'enveloppe de l'échangeur, (4) la chambre d'entrée, (5) le collecteur d'entrée, (8) la plaque tubulaire où sont soudées les extrémités supérieures (7) des tubes (6) constituant le faisceau. Le dispositif distributeur (A) est fixé par l'intermédiaire de pattes de fixation (13), de façon telle que toutes les ouvertures des tubes soient situées à l'intérieur du dispositif distributeur et qu'un ou plusieurs orifices soient ménagés entre le bas de la partie cylindrique (1) et la plaque tubulaire (8). Avantageusement la hauteur h du ou des orifices ainsi ménagés est comprise entre 5 et 15 mm. Le diamètre extérieur D de la partie cylindrique (1) est choisi de façon à ménager entre la paroi interne de la chambre d'entrée (4) et la paroi externe de la partie cylindrique (1) un espace d compris entre 1 et 5 mm.Another object of the present invention relates to a multitubular heat exchanger provided with the dispensing device described above. An example of such an exchanger is shown in Figure 3 in the appendix, in which (3) represents the shell of the exchanger, (4) the inlet chamber, (5) the inlet manifold, (8 ) the tube plate where the upper ends (7) of the tubes (6) constituting the bundle are welded. The dispensing device (A) is fixed by means of fixing lugs (13), so that all the openings of the tubes are located inside the dispensing device and that one or more orifices are formed between the bottom of the cylindrical part (1) and the tube plate (8). Advantageously, the height h of the opening (s) thus formed is between 5 and 15 mm. The outside diameter D of the cylindrical part (1) is chosen so as to leave a space between 1 and 5 mm between the internal wall of the inlet chamber (4) and the external wall of the cylindrical part (1) .

La hauteur totale du dispositif distributeur est au plus égale à la hauteur de la chambre d'entrée de l'échangeur. Avantageusement, et de façon à obtenir une plus grande efficacité, cette hauteur est comprise entre 0,80 et 0,95 fois la hauteur de la chambre.The total height of the dispensing device is at most equal to the height of the inlet chamber of the exchanger. Advantageously, and in order to obtain greater efficiency, this height is between 0.80 and 0.95 times the height of the chamber.

Selon un mode particulier de réalisation de l'invention, on associe au dispositif distributeur, en vue d'améliorer la répartition du liquide sur la paroi interne de chaque tube de l'échangeur, un dispositif répartiteur propre à chaque tube de l'échangeur. Ce dispositif répartiteur est de préférence constitué par une pièce cylindrique, munie de spires hélicoïdales, engagée partiellement dans chaque tube (6) de l'échangeur et fixée à l'extrémité (7) de chaque tube de façon à ménager un espace pour le passage latéral du liquide. Le diamètre hors tout du dispositif répartiteur est légèrement inférieur au diamètre intérieur du tube qui recevra ledit dispositif répartiteur. Un exemple d'un échangeur dont chaque tube est muni d'un tel dispositif répartiteur est représenté en coupe partielle à la figure 4 où (6) est un tube du faisceau dont l'extrémité (7) est soudée à la plaque (8), et (11) le dispositif répartiteur comprenant des spires hélicoïdales (12) fixé à l'extrémité du tube (6) de telle façon qu'un espace soit ménagé pour le passage latéral du liquide.According to a particular embodiment of the invention, the distributor device is associated, in order to improve the distribution of the liquid on the internal wall of each tube of the exchanger, with a distributor device specific to each tube of the exchanger. This distributor device is preferably constituted by a cylindrical piece, provided with helical coils, partially engaged in each tube (6) of the exchanger and fixed at the end (7) of each tube so as to provide a space for passage side of the liquid. The overall diameter of the distributor device is slightly less than the inside diameter of the tube which will receive said distributor device. An example of an exchanger of which each tube is provided with such a distributor device is shown in partial section in FIG. 4 where (6) is a tube of the bundle whose end (7) is welded to the plate (8) , and (11) the distributor device comprising helical turns (12) fixed to the end of the tube (6) so that a space is provided for the lateral passage of the liquid.

La présence d'un tel dispositif répartiteur à l'entrée de chaque tube ne perturbe pas la distribution uniforme du liquide entre les différents tubes, assurée par le dispositif distributeur.The presence of such a distributor device at the inlet of each tube does not disturb the uniform distribution of the liquid between the different tubes, ensured by the distributor device.

Le dispositif distributeur selon l'invention permet d'obtenir une répartition uniforme du liquide entre les tubes du faisceau multitubulaire d'un échangeur.The dispensing device according to the invention makes it possible to obtain a uniform distribution of the liquid between the tubes of the multitubular bundle of an exchanger.

Le dispositif distributeur selon l'invention, auquel on associe ou non un dispositif répartiteur, trouve une application particulièrement intéressante dans les installations de concentration et déshydratation de l'acide maléique mettant en oeuvre le procédé d'évaporation statique à co-courants, selon la demande de brevet français n° 80/13.117.The distributor device according to the invention, with which a distributor device is associated or not, finds a particularly advantageous application in installations for the concentration and dehydration of maleic acid implementing the process of static evaporation using co-currents, according to the French patent application n ° 80 / 13.117.

Claims (8)

1. Dispositif distributeur de liquide pour échangeurs de chaleur multitubulaires à film tombant constitué d'un capot cylindro-conique ou cylindro-tronconique, caractérisé en ce que la partie conique ou tronconique (2) dudit capot est fermée.1. Liquid dispensing device for multitubular heat exchangers with a falling film consisting of a cylindro-conical or cylindro-frustoconical cover, characterized in that the conical or frustoconical part (2) of said cover is closed. 2. Dispositif selon la revendication 1, caractérisé en ce que l'angle au sommet «de la partie conique ou tronconique (2) a une valeur comprise entre 140 et 160°.2. Device according to claim 1, characterized in that the apex angle "of the conical or frustoconical part (2) has a value between 140 and 160 °. 3. Dispositif selon l'une des revendications 1 et 2, caractérisé en ce que le diamètre extérieur D de la partie cylindrique (1) est compris entre 0,8 et 1,2 fois la hauteur H de ladite partie cylindrique.3. Device according to one of claims 1 and 2, characterized in that the external diameter D of the cylindrical part (1) is between 0.8 and 1.2 times the height H of said cylindrical part. 4. Echangeur de chaleur multitubulaire comprenant une enveloppe (3), une chambre d'entrée (4), un collecteur d'entrée (5), au moins deux tubes (6) comportant chacun deux extrémités et dont une extrémité (7) de chaque tube est soudée à la plaque tubulaire (8) isolant la chambre d'entrée (4) de la paroi externe des tubes (6), caractérisé en ce qu'il est équipé d'un dispositif selon l'une des revendications 1 à 3, placé à l'intérieur de ladite chambre d'entrée (4) et fixé par sa partie cylindrique (1) sur la plaque tubulaire (8) de façon telle que toutes les extrémités (7) des tubes (6) soudées à la plaque tubulaire (8) soient situées, à l'intérieur dudit dispositif distributeur et qu'un ou plusieurs orifices soient ménagés entre le bas de la partie cylindrique (1) et la plaque tubulaire (8).4. Multitubular heat exchanger comprising a casing (3), an inlet chamber (4), an inlet manifold (5), at least two tubes (6) each having two ends and one end (7) of each tube is welded to the tube plate (8) isolating the inlet chamber (4) from the external wall of the tubes (6), characterized in that it is equipped with a device according to one of claims 1 to 3, placed inside said inlet chamber (4) and fixed by its cylindrical part (1) to the tubular plate (8) so that all the ends (7) of the tubes (6) welded to the tubular plate (8) are located inside said dispensing device and one or more orifices are formed between the bottom of the cylindrical part (1) and the tubular plate (8). 5. Echangeur selon la revendication 4, caractérisé en ce que la hauteur h du ou des orifices ménagés entre le bas de la partie cylindrique (1) et la plaque tubulaire (8) est comprise entre 5 et 15 mm.5. Exchanger according to claim 4, characterized in that the height h of the orifice (s) formed between the bottom of the cylindrical part (1) and the tube plate (8) is between 5 and 15 mm. 6. Echangeur selon l'une des revendications 4 et 5, caractérisé en ce que le diamètre extérieur D de la partie cylindrique (1) est choisi de façon à ménager entre la paroi interne de la chambre d'entrée (4) et la paroi externe de la partie cylindrique (1) du dispositif distributeur un espace d compris entre 1 et 5 mτ.6. Exchanger according to one of claims 4 and 5, characterized in that the external diameter D of the cylindrical part (1) is chosen so as to form between the internal wall of the inlet chamber (4) and the wall external of the cylindrical part (1) of the dispensing device a space of between 1 and 5 mτ. 7. Echangeur selon l'une des revendications 4 à 6, caractérisé en ce que la hauteur totale du dispositif est comprise entre 0,80 et 0,95 fois la hauteur de la chambre d'entrée (4).7. Exchanger according to one of claims 4 to 6, characterized in that the total height of the device is between 0.80 and 0.95 times the height of the inlet chamber (4). 8. Echangeur selon l'une des revendications 4 à 7, caractérisé en ce que l'extrémité (7) de chaque tube (6) est munie d'un dispositif répartiteur de liquide constitué par une pièce cylindrique munie de spires hélicoïdales, engagée partiellement dans chaque tube (6) et fixée à l'extrémité (7) dudit tube de façon à ménager un espace pour le passage latéral du liquide.8. Exchanger according to one of claims 4 to 7, characterized in that the end (7) of each tube (6) is provided with a liquid distributor device constituted by a cylindrical part provided with helical turns, partially engaged in each tube (6) and fixed to the end (7) of said tube so as to provide a space for the lateral passage of the liquid.
EP82401059A 1981-06-15 1982-06-11 Distributing device for multitubular heat exchangers Expired EP0068957B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82401059T ATE9840T1 (en) 1981-06-15 1982-06-11 DISTRIBUTION DEVICE FOR TUBE HEAT EXCHANGER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8111696A FR2507761B1 (en) 1981-06-15 1981-06-15 DISTRIBUTOR DEVICE FOR MULTITUBULAR EXCHANGERS
FR8111696 1981-06-15

Publications (2)

Publication Number Publication Date
EP0068957A1 true EP0068957A1 (en) 1983-01-05
EP0068957B1 EP0068957B1 (en) 1984-10-10

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EP82401059A Expired EP0068957B1 (en) 1981-06-15 1982-06-11 Distributing device for multitubular heat exchangers

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US (1) US4469169A (en)
EP (1) EP0068957B1 (en)
JP (1) JPS582592A (en)
AT (1) ATE9840T1 (en)
CA (1) CA1217476A (en)
DE (1) DE3260946D1 (en)
FR (1) FR2507761B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60160372U (en) * 1984-03-30 1985-10-24 日立造船株式会社 Liquid film forming plug on the inner surface of heat transfer tube for liquid film heat exchanger
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US9897308B2 (en) * 2013-12-26 2018-02-20 Nuscale Power, Llc Steam generator with tube aligning orifice
CN108485926A (en) * 2018-03-08 2018-09-04 太原理工大学 Biogas slurry preheating buffer storage based on waste heat recovery and its pre-heating mean
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US2097104A (en) * 1936-02-08 1937-10-26 Aatto P Saha Heat exchange apparatus
FR1222655A (en) * 1959-01-19 1960-06-13 Pechiney Prod Chimiques Sa Improvements to heat exchangers
FR1249001A (en) * 1959-02-24 1960-12-23 Maschf Augsburg Nuernberg Ag tube heat exchanger for expensive heat carriers
DE1501484A1 (en) * 1966-04-29 1969-10-23 Christian Carl Fa Continuous cooler
DE1501674A1 (en) * 1966-08-18 1969-10-23 Zeitz Hydrierwerk Arrangement for liquid distribution for heat exchange and mass transfer systems
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FR2280436A1 (en) * 1974-07-29 1976-02-27 Siemens Ag DISPENSER FOR FLOWING FLUIDS
US4227551A (en) * 1978-08-03 1980-10-14 Babcock & Wilcox, Limited Tube banks

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JPS582592A (en) 1983-01-08
ATE9840T1 (en) 1984-10-15
DE3260946D1 (en) 1984-11-15
FR2507761A1 (en) 1982-12-17
FR2507761B1 (en) 1986-05-16
US4469169A (en) 1984-09-04
EP0068957B1 (en) 1984-10-10
CA1217476A (en) 1987-02-03

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