EP0005494A1 - Vertical separator of a mixture of steam or gas and liquid or solid particles - Google Patents

Vertical separator of a mixture of steam or gas and liquid or solid particles Download PDF

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Publication number
EP0005494A1
EP0005494A1 EP79101381A EP79101381A EP0005494A1 EP 0005494 A1 EP0005494 A1 EP 0005494A1 EP 79101381 A EP79101381 A EP 79101381A EP 79101381 A EP79101381 A EP 79101381A EP 0005494 A1 EP0005494 A1 EP 0005494A1
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EP
European Patent Office
Prior art keywords
gas
tubes
vapor
mixture
vertical
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
EP79101381A
Other languages
German (de)
French (fr)
Other versions
EP0005494B1 (en
Inventor
Jacques Marjollet
Gérard Tondeur
Jean-Pierre Cerdan
Patrick Talleu
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
Electricite de France SA
Original Assignee
Stein Industrie SA
Electricite de France 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.)
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Priority claimed from FR7814212A external-priority patent/FR2425272A1/en
Priority claimed from FR7908784A external-priority patent/FR2452973A2/en
Application filed by Stein Industrie SA, Electricite de France SA filed Critical Stein Industrie SA
Publication of EP0005494A1 publication Critical patent/EP0005494A1/en
Application granted granted Critical
Publication of EP0005494B1 publication Critical patent/EP0005494B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/26—Steam-separating arrangements
    • F22B37/32—Steam-separating arrangements using centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B04C3/04—Multiple arrangement thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/24—Multiple arrangement thereof
    • B04C5/28—Multiple arrangement thereof for parallel flow

Definitions

  • the present invention relates to a vertical separator of a mixture of vapor or gas and liquid or solid particles, comprising inside an external shell an inlet enclosure of said mixture, a plurality of vertical tubes provided at their inlet fixed blades imparting a helical movement to the mixture, and at their exit from a coaxial tube of smaller diameter allowing in its internal duct the evacuation of dry vapor or gas, and in the annular space that of a mixture richer in liquid or solid particles, said annular space opening into a free volume allowing the separation of said mixture richer in liquid or solid particles into a substantially dry vapor or a gas and a fluid little loaded with vapor or gas, and said conduits internal opening into a dry vapor or gas collection chamber.
  • Separation dryers in tubes by centrifugation effect have the advantage of a small footprint in relation to the flow of steam to be treated, and can therefore be arranged directly at the outlet of devices generating humidity in the steam, such as expansion turbines, by eliminating or reducing the lengths of piping transporting wet steam, and consequently subject to the phenomenon of erosion-corrosion. They make it possible to obtain a dry vapor of low residual water content, of the order of 0.1%, and consequently to reduce as much as possible the volumes of water retained in the steam circuits, and liable to vaporize during vapor pressure drops. However, the separated water is still mixed with steam, and even if it opens into a chamber allowing a certain separation by gravity, it is imperfect.
  • the flowing water still causes a certain amount of steam which is lost for the cycle thermodynamics, which reduces the efficiency of downstream devices (expansion turbines, exchangers).
  • the steam which rises> .e in this chamber still entrains water droplets, so that it is difficult to use without precaution, and risks in particular to cause corrosions on its circuit or to require the use of piping in expensive stainless steel.
  • the object of the present invention is to remedy the above drawbacks, and to provide a vertical separator which makes it possible on the one hand to obtain dry steam or a gas of low residual content of liquid or solid particles, and on the other hand an additional fraction of vapor or gas freed from most of the residual liquid or solid particles, and containing only a few percent of residual particles, usable in thermodynamic circuits without special precautions. It also aims, in the case of the separation of a mixture of vapor or gas and a liquid, to minimize the amount of liquid vaporized during a pressure drop of the vapor or gas, and reduce the pressure drop on the dry steam or gas circuit and the overall size of the separator.
  • the separator according to the invention is characterized in that it comprises at the bottom of the free volume a convex bottom with convexity facing upwards, an annular ring for collecting the fluid little charged with vapor or gas, and passages regularly arranged between the vertical tubes and allowing substantially dry vapor or gas to escape upward between the vertical tubes.
  • FIGS. 1 and 2 on the one hand, 3 to 5 on the other hand, are represented with marks comprising as a digit hundreds 1 for FIGS. 1 and 2, and 3 for FIGS. 3 to 5.
  • the outer casing of the separator made of carbon steel, comprises an upper frustoconical part 101, followed by a cylindrical part 102. Inside the frustoconical part is welded an access sleeve 3 of steel stainless steel, to which is fixed a plate 104 for spacing the vertical separation tubes, with the interposition of an expansion joint 5.
  • the separation tubes 106 have flared access orifices 107, joined by their edges so as to form hexagonal paving (see figure 2).
  • the tubes 106 are provided in the vicinity of their inlet with members 107A imparting a vortex movement to the humid steam. They include at their lower end devices 8 for separating the centrifuged water and the dry steam, the latter engaging in an internal tube 109 of smaller diameter.
  • the tubes 109 are welded to a convex bottom 110 and open on the other side of the latter by mouths 111 into a tranquilization chamber for dry steam 112.
  • the latter is connected to a dry steam discharge duct 113 with a large radius of curvature, so as to minimize the pressure drop on the dry steam circuit.
  • the curved bottom 110 constitutes the upper end of a cylindrical shell 14, welded to a circular crown 123, itself welded inside the external shell 102.
  • an outer ferrule 15 also made of stainless steel, the lower part of which defines, with the inner ferrule 14, an annular ring for collecting separate water 116, of small volume.
  • This crown is connected by conduits 117, 118, 180 ° from one another, to an external receptacle for the collection of separate water, of significantly larger volume, not shown. In this way, in the event of a pressure drop on the wet steam circuit, the quantity of water liable to re-vaporize is small.
  • a peripheral sheet 19 surrounds the devices 8 for separating the centrifuged water from the dry steam, so as to avoid rising mixed water vapor towards the pipes 120, 121 for evacuating the substantially dry rising steam.
  • the tubes 120, 121 are at 180 ° from one another. The homogenization of the substantially dry vapor flow rates is ensured using deflectors such as 22 in front of the outlet pipes.
  • the moisture-laden vapor arrives vertically downwards in the cuff 3. It is also distributed between the different tubes 3, thanks to the hexagonal inlets 107 of the tubes 106. The wet vapor descends into the tubes 106, after being seen to print a vortex movement by the organs 107A. Under the effect of centrifugal force, the water droplets are projected against the internal wall of the tubes, along which they run.
  • the dry vapor which remains in the axial zone of the tubes engages inside the tubes 109 of smaller diameter, in which its vortex movement is rectified by the members 109A, then crosses the curved bottom 110 and collects in the stilling chamber 112, from where it is sent for use by the piping 113, with a large radius of curvature.
  • the relatively low humidity vapor escapes and rises between the tubes 106, passing through slots of defined width formed between these tubes, not shown, then is sent for use by the tubes 120 and 121.
  • the remaining water collects in jets which descend along the outer periphery of the tubes 109 towards the convex bottom 110.
  • the water then flows on this domed bottom towards the periphery thereof, where it collects in the annular crown 116. It is evacuated from this annular crown by the conduits 117 and 118, at 180 0 one of the another, to a water recipe container, not shown.
  • the separator shell made of stainless steel, so as to resist the erosion-corrosion action high speed wet steam, comprises a frustoconical part 301 on the side of the wet steam intake, a central cylindrical part 302, and a frustoconical part 313 on the side of the dry steam discharge.
  • the bottom 304 for separating the separation tubes 306 has a rim raised upwards 26, welded on part of its periphery inside the ferrule, and free on the other part of it, as it will be described below in more detail.
  • the domed bottom 310 is welded to a circular crown 323, itself welded to the outer shell, and which thus supports all of the separation tubes.
  • the outer shroud like that of FIG. 1, is fitted with pipes 317 for discharging the separated water to a collecting flask (not shown), and pipes for discharging water-depleted vapor 320.
  • the structure of the flat bottom 3CI t is more visible with reference to Figures 4, 5A, 5B.
  • This is welded to the shell external 301 by means of gussets 27 engaging in notches of the rim 26A (see FIG. 5A), along two sectors 28, forming an angle of 50 °, in the zones where the tubes are relatively distant from the rim of the background. Its rim 26B is however free on the rest of the periphery (FIG. 5B), in the zones 29 where the tubes are closer to the rim of the bottom.
  • a double sealing blade 30A, 30B bolted from place to place and tightened by nuts 35 on 3 tabs 36 welded to the ferrule (FIGS. 5A, 5B).
  • the flat bottom 304 is provided with orifices 31 for evacuating the water which is deposited there.
  • These orifices open out onto bent evacuation tubes 32 provided with an expansion bellows 33, and open out to the outside of the shell by a tube 34.
  • These tubes are connected to the same collecting flask as the tubes 317, by l 'i h U-shaped tubes providing compensation for the pressure difference.
  • the separators which have just been described with reference to the figures appear to be preferable embodiments, it will be understood that various modifications can be made to them without departing from the scope of the invention, some of their members being able to be replaced by others. who would play a similar technical role.
  • the members intended to impart a swirling movement to wet steam can have any suitable shape, as well as those intended to straighten the movement, on the one hand of dry steam, on the other hand of water, bottom of the tubes.
  • the convex bottom separating the liquid chamber and the vapor stilling chamber can be replaced by a conical bottom.
  • the invention applies more particularly to separators of wet water vapor into dry steam and residual water, in particular in power generation plants. However, it can also be applied to the separation of liquid or solid particles conveyed by a vapor or by a gas.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Cyclones (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

Séparateur vertical d'un mélange de vapeur ou de gaz et de particules liquides ou solides, comprenant dans une virole externe (101, 102) une enceinte d'admission du mélange, des tubes verticaux (106) munis à leur entrée d'aubes (107A) imprimant au mélange un mouvement hélicoïdal, et à leur sortie d'un tube coaxial de plus faible diamètre (109) permettant dans un conduit interne l'évacuation de vapeur sèche ou de gaz et dans l'espace annulaire celle d'un mélange plus riche ou particules, l'espace annulaire débouchant dans un volume libré permettant la séparaton du mélange plus riche en particules en une vapeur sensiblement sèche ou un gaz et un fluide peu chargé en vapeur ou gaz. Il comporte au bas du volume libre un fond (110) bombé vers le haut, une couronne annulaire de recueil du fluide peu chargé en vapeur ou gaz (116), et des passages entre les tubes verticaux permettant à la vapeur ou au gaz de s'échapper vers le haut. Application au séchage de vapeur d'eau.Vertical separator of a mixture of vapor or gas and of liquid or solid particles, comprising in an external shell (101, 102) an enclosure for admitting the mixture, vertical tubes (106) provided with blades at their inlet ( 107A) imparting to the mixture a helical movement, and at their exit from a coaxial tube of smaller diameter (109) allowing in an internal duct the evacuation of dry vapor or gas and in the annular space that of a mixture richer or particles, the annular space opening into a free volume allowing the separation of the mixture richer in particles into a substantially dry vapor or a gas and a fluid little charged with vapor or gas. It comprises at the bottom of the free volume a bottom (110) curved upwards, an annular ring for collecting the fluid little charged with vapor or gas (116), and passages between the vertical tubes allowing the vapor or the gas to s escape up. Application to the drying of water vapor.

Description

La présente invention concerne un séparateur vertical d'un mélange de vapeur ou de gaz et de particules liquides ou solides, comprenant à l'intérieur d'une virole externe une enceinte d'admission dudit mélange, une pluralité de tubes verticaux munis à leur entrée d'aubes fixes imprimant au mélange un mouvement hélicoïdal, et à leur sortie d'un tube coaxial de plus faible diamètre permettant dans son conduit interne l'évacuation de vapeur sèche ou de gaz, et dans l'espace annulaire celle d'un mélange plus riche en particules liquides ou solides, ledit espace annulaire débouchant dans un volume libre permettant la séparation dudit mélange plus riche en particules liquides ou solides en une vapeur sensiblement sèche ou un gaz et un fluide peu chargé en vapeur ou en gaz, et lesdits conduits internes débouchant dans une chambre de recueil de vapeur sèche ou de gaz.The present invention relates to a vertical separator of a mixture of vapor or gas and liquid or solid particles, comprising inside an external shell an inlet enclosure of said mixture, a plurality of vertical tubes provided at their inlet fixed blades imparting a helical movement to the mixture, and at their exit from a coaxial tube of smaller diameter allowing in its internal duct the evacuation of dry vapor or gas, and in the annular space that of a mixture richer in liquid or solid particles, said annular space opening into a free volume allowing the separation of said mixture richer in liquid or solid particles into a substantially dry vapor or a gas and a fluid little loaded with vapor or gas, and said conduits internal opening into a dry vapor or gas collection chamber.

Les sécheurs à séparation dans des tubes par effet de centrifugation présentent l'avantage d'un faible encombrement par rapport au débit de vapeur à traiter, et peuvent donc être disposés directement à la sortie des dispositifs générateurs d'humidité dans la vapeur, tels que des turbines de détente, en éliminant ou réduisant les longueurs de tuyauteries transportant de la vapeur humide, et soumises par suite au phénomène d'érosion-corrosion. Ils permettent d'obtenir une vapeur sèche de faible teneur résiduaire en eau, de l'ordre de 0,1 %, et par suite de réduire au maximum les volumes d'eau retenus dans les circuits de vapeur, et susceptibles de se vaporiser lors de chutes de pression de la vapeur. Cependant l'eau séparée est encore mélangée de vapeur, et même si elle débouche dans une chambre permettant une certaine séparation par gravité, celle-ci est imparfaite. L'eau qui ruisselle entraine encore une certaine quantité de vapeur qui est perdue pour le cycle thermodynamique, ce qui réduit le rendement des appareils en aval (turbines de détente, échangeurs). La vapeur qui s'élé>.e dans cette chambre entraine encore des gouttelettes d'eau, de sorte qu'elle est difficilement utilisable sans précaution, et risque notamment de provoquer des corrosions sur son circuit ou de nécessiter l'emploi de tuyauteries en acier inoxydable coûteuses.Separation dryers in tubes by centrifugation effect have the advantage of a small footprint in relation to the flow of steam to be treated, and can therefore be arranged directly at the outlet of devices generating humidity in the steam, such as expansion turbines, by eliminating or reducing the lengths of piping transporting wet steam, and consequently subject to the phenomenon of erosion-corrosion. They make it possible to obtain a dry vapor of low residual water content, of the order of 0.1%, and consequently to reduce as much as possible the volumes of water retained in the steam circuits, and liable to vaporize during vapor pressure drops. However, the separated water is still mixed with steam, and even if it opens into a chamber allowing a certain separation by gravity, it is imperfect. The flowing water still causes a certain amount of steam which is lost for the cycle thermodynamics, which reduces the efficiency of downstream devices (expansion turbines, exchangers). The steam which rises> .e in this chamber still entrains water droplets, so that it is difficult to use without precaution, and risks in particular to cause corrosions on its circuit or to require the use of piping in expensive stainless steel.

La présente invention a pour but de remédier aux inconvénients ci-dessus, et de procurer un séparateur vertical qui permette d'obtenir d'une part une vapeur sèche ou un gaz de faible teneur résiduaire en particules liquides ou solides, et d'autre part une fraction complémentaire de vapeur ou de gaz débarrassée de la plus grande partie des particules liquides ou solides résiduaires, et ne contenant plus que quelques pourcent de particules résiduaires, utilisable dans des circuits thermodynamiques sans précaution particulière. Elle a également pour but, dans le cas de la séparation d'un mélange de vapeur ou de gaz et d'un liquide, de réduire au minimum la quantité de liquide vaporisée lors d'une chute de pression de la vapeur ou du gaz, et de réduire la perte de charge sur le circuit de vapeur sèche ou de gaz et l'encombrement général du séparateur.The object of the present invention is to remedy the above drawbacks, and to provide a vertical separator which makes it possible on the one hand to obtain dry steam or a gas of low residual content of liquid or solid particles, and on the other hand an additional fraction of vapor or gas freed from most of the residual liquid or solid particles, and containing only a few percent of residual particles, usable in thermodynamic circuits without special precautions. It also aims, in the case of the separation of a mixture of vapor or gas and a liquid, to minimize the amount of liquid vaporized during a pressure drop of the vapor or gas, and reduce the pressure drop on the dry steam or gas circuit and the overall size of the separator.

Le séparateur selon l'invention est caractérisé en ce qu'il comporte au bas du volume libre un fond convexe à convexité tournée vers le haut, une couronne annulaire de recueil du fluide peu chargé en vapeur ou en gaz, et des passages régulièrement disposés entre les tubes verticaux et permettant à la vapeur sensiblement sèche ou au gaz de s'échapper vers le haut entre les tubes verticaux.The separator according to the invention is characterized in that it comprises at the bottom of the free volume a convex bottom with convexity facing upwards, an annular ring for collecting the fluid little charged with vapor or gas, and passages regularly arranged between the vertical tubes and allowing substantially dry vapor or gas to escape upward between the vertical tubes.

Il comporte en outre de préférence au moins l'une des caractéristiques suivantes :

  • - la chambre de recueil de vapeur sèche ou de gaz est reliée par le bas à un conduit d'évacuation de la vapeur sèche ou du gaz s'écartant latéralement de l'axe du séparateur avec un grand rayon de courbure.
  • - la couronne annulaire de recueil du fluide peu chargé en vapeur ou en gaz est de faible volume et reliée à un récipient de grand volume de recueil dudit fluide, extérieur au séparateur.
  • - ladite couronne annulaire est reliée au récipient de recueil par au moins deux conduits régulièrement répartis sur son pourtour.
  • - il comprend deux ou plusieurs tubulures latérales d'évacuation de la vapeur sensiblement sèche ou de gaz échappés vers le haut entre les tubes verticaux, régulièrement réparties sur son pourtour.
  • - l'ensemble de l'enceinte d'admission du mélange, des tubes de séparation et du fond convexe repose par le bord inférieur dudit fond convexe sur une couronne soudée à l'enveloppe externe du séparateur.
  • - l'ensemble de l'enceinte d'admission et du volume libre autour des tubes verticaux de séparation est entouré par une enveloppe interne en métal résistant à l'érosion-corrosion par la vapeur d'eau humide circulant à grande vitesse, solidaire du fond convexe, et l'enveloppe externe est en un métal non résistant à l'érosion-corrosion par la vapeur d'eau humide circulant à grande vitesse
  • - il comporte une enveloppe unique entourant directement l'enceinte d'admission du mélange et le volume libre autour des tubes de séparation, et le fond plat séparant l'enceinte d'admission et le volume libre autour des tubes est muni d'un rebord relevé vers le haut soudé sur la virole interne sur au moins une partie de son pourtour.
  • - ledit rebord relevé vers le haut est soudé sur la virole externe dans des secteur où les tubes verticaux sont relativement éloignés du bord dudit fond plat, et il reste libre dans des secteurs où les tubes verticaux sont relativement proches du bord dudit fond plat.
  • - l'intervalle entre le rebord relevé du fond et la virole externe, au moins dans les secteurs où ils ne sont pas soudés l'un à l'autre, est recouvert par des bandes d'étanchéité élastiques fixées de place en place à ladite virole externe.
  • - ledit fond plat est m uni sur son pourtour d'orifices reliés à des tubes coudés d'évacuation à l'extérieur de la virole de l'eau susceptible de se déposer sur lui
  • - lesdits tubes coudés sont munis dans une partie verticale au voisinage dudit fond plat de soufflets de dilatation.
It also preferably includes at least one of the following characteristics:
  • - the dry steam or gas collection chamber is connected from below to a discharge pipe for dry steam or gas which laterally deviates from the axis of the separator with a large radius of curvature.
  • - the annular ring for collecting the fluid lightly loaded with vapor or gas is of small volume and connected to a large volume container for collecting said fluid, outside the separator.
  • - Said annular crown is connected to the collection container by at least two conduits regularly distributed around its periphery.
  • - It comprises two or more lateral pipes for evacuating substantially dry vapor or gases escaping upwards between the vertical tubes, regularly distributed around its periphery.
  • - The whole of the mixture intake enclosure, the separation tubes and the convex bottom rests by the lower edge of said convex bottom on a crown welded to the outer casing of the separator.
  • - the entire intake enclosure and the free space around the vertical separation tubes is surrounded by an internal metal envelope resistant to erosion and corrosion by wet steam circulating at high speed, secured to the convex bottom, and the outer casing is made of a metal that is not resistant to erosion-corrosion by moist water vapor circulating at high speed
  • - It has a single envelope directly surrounding the intake enclosure of the mixture and the free volume around the separation tubes, and the flat bottom separating the intake enclosure and the free volume around the tubes is provided with a rim upwardly welded to the inner shell over at least part of its periphery.
  • - Said flange raised upwards is welded to the outer shell in sectors where the vertical tubes are relatively far from the edge of said flat bottom, and it remains free in sectors where the vertical tubes are relatively close to the edge of said flat bottom.
  • - the interval between the raised edge of the bottom and the outer shell, at least in the sectors where they are not welded to each other, is covered by elastic sealing strips fixed from place to place at said outer shell.
  • - Said flat bottom is m united around its periphery of orifices connected to bent evacuation tubes outside the ferrule of water likely to be deposited on it
  • - Said bent tubes are provided in a vertical part in the vicinity of said flat bottom with expansion bellows.

Il est décrit ci-après, à titre d'exemples et en référence aux figures du dessin annexé, deux formes de réalisation d'un séparateur de vapeur chargé d'eau issue d'une turbine de détente d'une centrale nucléaire, selon l'invention.

  • La figure 1 représente une première forme de réalisation en coupe axiale.
  • La figure 2 représente une coupe diamètrale selon l'axe II-II de la figure 1.
  • La figure 3 représente une autre forme de réalisation en coupe axiale selon l'axe III-III de la figure 4, avec rabattement d'une partie de la coupe.
  • La figure 4 représente une coupe diamétrale selon l'axe IV-IV de la figure 3.
  • La figure 5A représente le détail A de la figure 3.
  • La figure 5B représente le détail B de la figure 3.
It is described below, by way of examples and with reference to the figures of the appended drawing, two embodiments of a steam separator charged with water from an expansion turbine of a nuclear power plant, according to 'invention.
  • Figure 1 shows a first embodiment in axial section.
  • FIG. 2 represents a diametrical section along the axis II-II of FIG. 1.
  • FIG. 3 represents another embodiment in axial section along the axis III-III of FIG. 4, with a part of the section being folded down.
  • FIG. 4 represents a diametral section along the axis IV-IV of FIG. 3.
  • FIG. 5A represents the detail A of FIG. 3.
  • FIG. 5B represents the detail B of FIG. 3.

Les éléments communs aux figures 1 et 2 d'une part, 3 à 5 d'autre part, sont représentés avec des repères comportant comme chiffre des centaines 1 pour les figures 1 et 2, et 3 pour les figures 3 à 5.The elements common to FIGS. 1 and 2 on the one hand, 3 to 5 on the other hand, are represented with marks comprising as a digit hundreds 1 for FIGS. 1 and 2, and 3 for FIGS. 3 to 5.

Dans la figure 1, l'enveloppe externe du séparateur, en acier au carbone, comporte une partie tronconique supérieure 101, suivie d'une partie cylindrique 102. A l'intérieur de la partie tronconique est soudée une manchette d'accès 3 en acier inoxydable, à laquelle est fixée une plaque 104 d'entretoisement des tubes verticaux de séparation, avec interposition d'un joint de dilatation 5. Les tubes de séparation 106 comportent des orifices d'accès évasés 107, réunis par leurs bords de façon à former un pavage hexagonal (voir figure 2). Les tubes 106 sont munis au voisinage de leur entrée d'organes 107A imprimant à la vapeur humide un mouvement tourbillonnaire. Ils comportent à leur extrémité inférieure des dispositifs 8 de séparation de l'eau centrifugée et de la vapeur sèche, celle-ci s'engageant dans un tube interne 109 de plus faible diamètre. Les tubes 109, munis des organes de redressage d'écoulement 109A, sont soudés sur un fond bombé 110 et débouchent de l'autre côté de celui-ci par des embouchures 111 dans une chambre de tranquillisation de la vapeur sèche 112. Celle-ci est reliée à un conduit d'évacuation de la vapeur sèche 113 de grand rayon de courbure, de façon à réduire au minimum la perte de charge sur le circuit de vapeur sèche.In FIG. 1, the outer casing of the separator, made of carbon steel, comprises an upper frustoconical part 101, followed by a cylindrical part 102. Inside the frustoconical part is welded an access sleeve 3 of steel stainless steel, to which is fixed a plate 104 for spacing the vertical separation tubes, with the interposition of an expansion joint 5. The separation tubes 106 have flared access orifices 107, joined by their edges so as to form hexagonal paving (see figure 2). The tubes 106 are provided in the vicinity of their inlet with members 107A imparting a vortex movement to the humid steam. They include at their lower end devices 8 for separating the centrifuged water and the dry steam, the latter engaging in an internal tube 109 of smaller diameter. The tubes 109, provided with the flow straightening members 109A, are welded to a convex bottom 110 and open on the other side of the latter by mouths 111 into a tranquilization chamber for dry steam 112. The latter is connected to a dry steam discharge duct 113 with a large radius of curvature, so as to minimize the pressure drop on the dry steam circuit.

Le fond bombé 110 constitue l'extrémité supérieure d'une virole cylindrique 14, soudée sur une couronne circulaire 123, elle-même soudée à l'intérieur de la virole externe 102.The curved bottom 110 constitutes the upper end of a cylindrical shell 14, welded to a circular crown 123, itself welded inside the external shell 102.

A la plaque d'entretoisement 104 est fixée une virole extérieure 15, également en acier inoxydable, dont la partie inférieure définit avec la virole intérieure 14 une couronne annulaire de recueil de l'eau séparée 116, de faible volume. Cette couronne est reliée par des conduits 117, 118, à 1800 l'un de l'autre, à un récipient externe de recette de l'eau séparée, de volume notablement plus important, non représenté. De la sorte, en cas d'apparition d'une chute de pression sur le circuit de vapeur humide, la quantité d'eau susceptible de se revaporiser est peu importante.To the bracing plate 104 is fixed an outer ferrule 15, also made of stainless steel, the lower part of which defines, with the inner ferrule 14, an annular ring for collecting separate water 116, of small volume. This crown is connected by conduits 117, 118, 180 ° from one another, to an external receptacle for the collection of separate water, of significantly larger volume, not shown. In this way, in the event of a pressure drop on the wet steam circuit, the quantity of water liable to re-vaporize is small.

Par ailleurs, une tôle périphérique 19 entoure les dispositifs 8 de séparation de l'eau centrifugée de la vapeur sèche, de façon à éviter des remontées de vapeur mélangée d'eau vers les tubulures 120, 121 d'évacuation de la vapeur sensiblement sèche remontant entre les tubes 106 à partir des dispositifs 108. Les tubulures 120, 121 sont à 180° l'une de l'autre. L'homogénéisation des débits de vapeur sensiblement sèche est assurée à l'aide de déflecteurs tels que 22 en face des tubulures de sortie.In addition, a peripheral sheet 19 surrounds the devices 8 for separating the centrifuged water from the dry steam, so as to avoid rising mixed water vapor towards the pipes 120, 121 for evacuating the substantially dry rising steam. between the tubes 106 from the devices 108. The tubes 120, 121 are at 180 ° from one another. The homogenization of the substantially dry vapor flow rates is ensured using deflectors such as 22 in front of the outlet pipes.

Le fonctionnement du séparateur est le suivant :The operation of the separator is as follows:

La vapeur chargée d'humidité arrive verticalement vers le bas dans la manchette 3. Elle se répartit également entre les différents tube3, grâce aux entrées hexagonales 107 des tubes 106. La vapeur humide descend dans les tubes 106, après s'être vue imprimer un mouvement tourbillonnaire par les organes 107A. Sous l'effet de la force centrifuge, les gouttelettes d'eau sont projetées contre la paroi interne des tubes, le long de laquelle elles ruissellent. A la hauteur des extrémités inférieures des tubes de séparation 6, la vapeur sèche qui reste dans la zone axiale des tubes s'engage à l'intérieur des tubes 109 de plus faible diamètre, dans lesquels son mouvement tourbillonnaire est redressé par les organes 109A, puis traverse le fond bombé 110 et se rassemble dans la chambre de tranquillisation 112, d'où elle est envoyée à l'utilisation par la tuyauterie 113, à grand rayon de courbure.The moisture-laden vapor arrives vertically downwards in the cuff 3. It is also distributed between the different tubes 3, thanks to the hexagonal inlets 107 of the tubes 106. The wet vapor descends into the tubes 106, after being seen to print a vortex movement by the organs 107A. Under the effect of centrifugal force, the water droplets are projected against the internal wall of the tubes, along which they run. At the height of the lower ends of the separation tubes 6, the dry vapor which remains in the axial zone of the tubes engages inside the tubes 109 of smaller diameter, in which its vortex movement is rectified by the members 109A, then crosses the curved bottom 110 and collects in the stilling chamber 112, from where it is sent for use by the piping 113, with a large radius of curvature.

Du mélange d'eau et de vapeur qui s'écoule entre les tubes 108 et 109, et dont le mouvement tourbillonnaire est redressé par des organes non représentés, la vapeur relativement peu humide s'échappe et remonte entre les tubes 106, en traversant des fentes de largeur définie ménagées entre ces tubes, non représentées, puis est envoyée à l'utilisation par les tubulures 120 et 121. L'eau subsistante se rassemble en jets qui descendent le long du pourtour externe des tubes 109 vers le fond bombé 110. L'eau ruisselle alors sur ce fond bombé vers le pourtour de celui-ci, où elle se rassemble dans la couronne annulaire 116. Elle est évacuée de cette couronne annulaire par les conduits 117 et 118, à 1800 l'un de l'autre, vers un récipient de recette d'eau, non représenté. On observera que l'eau et la vapeur d'eau une fois séparées au niveau des dispositifs de séparation 108, suivent des trajets entièrement différents, l'un vers le bas, l'autre vers le haut, et qu'il n'y a donc aucun risque de nouveau mélange entre eau et vapeur. Par ailleurs, l'ensemble des dilatations différentielles de l'appareil, posé sur la couronne inférieure 123, est absorbé par le joint de dilatation 5 de la manchette 3. Si l'on veut effectuer des réparations sur l'entrée des tubes 106, on dispose j avantageusement des trous d'homme 24, 25 sur la partie conique 1 de l'enveloppe et sur la manchette 3.From the mixture of water and steam which flows between the tubes 108 and 109, and whose vortex movement is rectified by members not shown, the relatively low humidity vapor escapes and rises between the tubes 106, passing through slots of defined width formed between these tubes, not shown, then is sent for use by the tubes 120 and 121. The remaining water collects in jets which descend along the outer periphery of the tubes 109 towards the convex bottom 110. The water then flows on this domed bottom towards the periphery thereof, where it collects in the annular crown 116. It is evacuated from this annular crown by the conduits 117 and 118, at 180 0 one of the another, to a water recipe container, not shown. It will be observed that the water and the water vapor, once separated at the level of the separation devices 108, follow entirely different paths, one downwards, the other upwards, and that there is no there is therefore no risk of re-mixing between water and steam. Furthermore, all the differential expansions of the device, placed on the lower ring 123, are absorbed by the expansion joint 5 of the cuff 3. If one wishes to carry out repairs on the inlet of the tubes 106, there are advantageously j manholes 24, 25 on the conical part 1 of the envelope and on the cuff 3.

Dans la figure 3, la virole du séparateur, en acier inoxydable, de façon à résister à l'action d'érosion-corrosion de la vapeur humide à grande vitesse, comporte une partie tronconique 301 du côté de l'admission de la vapeur humide, une partie cylindrique centrale 302, et une partie tronconique 313 du côté de l'évacuation de la vapeur sèche. Le fond 304 d'entretoisement des tubes de séparation 306 comporte un rebord re;evé vers le haut 26, soudé sur une partie de son pourtour à l'intérieur de la virole, et libre sur l'autre partie de celui-ci, comme il sera décrit ci-après plus en détail.In Figure 3, the separator shell, made of stainless steel, so as to resist the erosion-corrosion action high speed wet steam, comprises a frustoconical part 301 on the side of the wet steam intake, a central cylindrical part 302, and a frustoconical part 313 on the side of the dry steam discharge. The bottom 304 for separating the separation tubes 306 has a rim raised upwards 26, welded on part of its periphery inside the ferrule, and free on the other part of it, as it will be described below in more detail.

Les tubes de séparation 306, de section droite circulaire, se terminent au-dessus du fond 304 par des orifices d'accès évasés 307, réunis par leur bords de façon à former un passage hexagonal (voir figure 4), comme dans le cas selon les figures 1 et 2.The separation tubes 306, of circular cross section, terminate above the bottom 304 by flared access orifices 307, joined by their edges so as to form a hexagonal passage (see FIG. 4), as in the case according to Figures 1 and 2.

Ils sont munis à leur entrée de jeux d'aubes inclinées 107A, fixés sur des mandrins axiaux 6A, et imprimant à la vapeur humide un mouvement tourbillonnaire hélicoidal. ILs comportent à leur extrémité inférieure des dispositifs de séparation de l'eau centrifugée et de la vapeur sèche 308, celle-ci s'engageant dans un tube interne 309, initialement de plus faible diamètre que le tube 306. Les tubes 309, munis d'aubes de redressage d'écoulement de la vapeur sèche 309A, et s'évasant en forme de tronc de cône, de façon à assurer le ralentissement de celle-ci, sont soudés sur le fond bombé 310, et se terminent par des orifices d'évacuation évasés 311, se réunissant en un pavage hexagonal analogue à celui des orifices d'accès 307, et débouchant dans la chambre de recueil de vapeur sèche 312. Celle-ci est réunie à un conduit d'évacuation de la vapeur sèche, non représenté.They are provided at their entry with sets of inclined vanes 107A, fixed on axial mandrels 6A, and printing with humid steam a helical vortex movement. They comprise at their lower end devices for separating centrifuged water and dry steam 308, the latter engaging in an internal tube 309, initially of smaller diameter than the tube 306. The tubes 309, provided with 'straightening steam flow vanes 309A, and flaring in the form of a truncated cone, so as to slow it down, are welded to the convex bottom 310, and terminate in orifices d flared outlet 311, meeting in a hexagonal paving similar to that of the access orifices 307, and opening into the dry steam collection chamber 312. This is joined to a dry steam outlet duct, not represented.

Le fond bombé 310 est soudé sur une couronne circulaire 323, elle-même soudée à la virole externe, et qui supporte ainsi l'ensemble des tubes de séparation.The domed bottom 310 is welded to a circular crown 323, itself welded to the outer shell, and which thus supports all of the separation tubes.

La virole externe, comme celle de la figure 1, est munie de tubulures 317 d'évacuation de l'eau séparée vers un ballon de recueil (non représenté), et de tubulures d'évacuation de vapeur appauvrie en eau 320.The outer shroud, like that of FIG. 1, is fitted with pipes 317 for discharging the separated water to a collecting flask (not shown), and pipes for discharging water-depleted vapor 320.

La structure du fond plat 3CIt est plus visible en référence aux figures 4, 5A, 5B. Celui-ci est soudé à la virole externe 301 par l'intermédiaire de goussets 27 s'engageant dans des échancrures du rebord 26A (voir figure 5A), le long de deux secteurs 28, formant un angle de 50°, dans les zones où les tubes sont relativement éloignés du rebord du fond. Son rebord 26B est par contre libre sur le reste du pourtour (figure 5B), dans les zones 29 où les tubes sont plus proches du rebord du fond. Afin d'éviter les fuites de vapeur humide le long de ce dernier, la partie supérieure du rebord est recouverte par une double lame d'étanchéité 30A, 30B, boulonnée de place en place et serrée par des écrous 35 sur de3 taquets 36 soudés à la virole (figures 5A, 5B).The structure of the flat bottom 3CI t is more visible with reference to Figures 4, 5A, 5B. This is welded to the shell external 301 by means of gussets 27 engaging in notches of the rim 26A (see FIG. 5A), along two sectors 28, forming an angle of 50 °, in the zones where the tubes are relatively distant from the rim of the background. Its rim 26B is however free on the rest of the periphery (FIG. 5B), in the zones 29 where the tubes are closer to the rim of the bottom. In order to avoid leakage of wet steam along the latter, the upper part of the flange is covered by a double sealing blade 30A, 30B, bolted from place to place and tightened by nuts 35 on 3 tabs 36 welded to the ferrule (FIGS. 5A, 5B).

Un peu d'humidité se séparant déjà avant l'entrée du mélange d'eau et de vapeur dans les tubes de séparation 306, le fond plat 304 est muni d'orifices 31 d'évacuation de l'eau qui s'y dépose. Ces orifices débouchent sur des tubes coudés d'évacuation 32 munis d'un souflet de dilatation 33, et débouchant à l'extérieur de la virole par une tubulure 34. Ces tubes sont reliés au même ballon de recueil que les tubulures 317, par l'ihtermédiaire des tubes en U assurant la compensation de l'écart de pression.A little moisture separating already before the entry of the water and steam mixture into the separation tubes 306, the flat bottom 304 is provided with orifices 31 for evacuating the water which is deposited there. These orifices open out onto bent evacuation tubes 32 provided with an expansion bellows 33, and open out to the outside of the shell by a tube 34. These tubes are connected to the same collecting flask as the tubes 317, by l 'i h U-shaped tubes providing compensation for the pressure difference.

Bien que les séparateurs qui viennent d'être décrits en référence aux figures paraissent les formes de réalisation préférables, on comprendra que diverses modifications peuvent leur être apportées sans sortir du cadre de l'invention, certains de leurs organes pouvant être remplacés par d'autres qui joueraient un rôle technique analogue. En particulier, les organes destinés à imprimer à la vapeur humide un mouvement tourbillonnaire peuvent avoir toute forme appropriée, de même que ceux destinés à redresser le mouvement, d'une part de la vapeur sèche, d'autre part de l'eau, au bas des tubes. Le fond bombé de séparation de la chambre de liquide et de la chambre de tranquillisation de vapeur peut être remplacé par un fond conique.Although the separators which have just been described with reference to the figures appear to be preferable embodiments, it will be understood that various modifications can be made to them without departing from the scope of the invention, some of their members being able to be replaced by others. who would play a similar technical role. In particular, the members intended to impart a swirling movement to wet steam can have any suitable shape, as well as those intended to straighten the movement, on the one hand of dry steam, on the other hand of water, bottom of the tubes. The convex bottom separating the liquid chamber and the vapor stilling chamber can be replaced by a conical bottom.

L'invention s'applique plus particulièrement aux séparateurs de vapeur d'eau humide en vapeur sèche et eau résiduelle, notamment dans les centrales de producticn d'énergie électrique. Cependant, elle peut s'appliquer également à la séparation de particules liquides ou solides véhiculées par une vapeur ou par un gaz.The invention applies more particularly to separators of wet water vapor into dry steam and residual water, in particular in power generation plants. However, it can also be applied to the separation of liquid or solid particles conveyed by a vapor or by a gas.

Claims (12)

1. Séparateur vertical d'un mélange de vapeur ou de gaz et de particules liquides ou solides, comprenant à l'intérieur d'une virole externe (101, 102) une enceinte (3) d'admission dudit mélange, une pluralité de tubes verticaux (106) munis à leur entrée d'aubes fixes (107A) imprimant au mélange un mouvement hélicoïdal, et à leur sortie d'un tube coaxial de plus faible diamètre (109) permettant dans un conduit interne l'évacuation de vapeur sèche ou de gaz et dans l'espace annulaire celle d'un mélange plus riche en particules liquides ou solides, ledit espace annulaire débouchant dans un volume libre permettant la séparation dudit mélange plus riche en particules liquides ou solides en une vapeur sensiblement sèche ou un gaz et un fluide peu chargé en vapeur ou en gaz, et lesdits conduits internes débouchant dans une chambre (112) de recueil de vapeur sèche ou de gaz, caractérisé en ce qu'il comporte au bas dudit volume libre un fond convexe (110) à convexité tournée vers le haut, une couronne annulaire de recueil du fluide peu chargé en vapeur ou en gaz (116), et des passages régulièrement disposés entre les tubes verticaux et permettant à la vapeur sensiblement sèche ou au gaz de s'échapper vers le haut entre lesdits tubes verticaux (106).1. Vertical separator of a mixture of vapor or gas and liquid or solid particles, comprising inside an external shroud (101, 102) an enclosure (3) for admitting said mixture, a plurality of tubes vertical (106) provided at their entry with fixed vanes (107A) imparting to the mixture a helical movement, and at their exit from a coaxial tube of smaller diameter (109) allowing in an internal duct the evacuation of dry vapor or of gas and in the annular space that of a mixture richer in liquid or solid particles, said annular space opening into a free volume allowing the separation of said mixture richer in liquid or solid particles in substantially dry vapor or a gas and a fluid little charged with vapor or gas, and said internal conduits opening into a chamber (112) for collecting dry vapor or gas, characterized in that it comprises at the bottom of said free volume a convex bottom (110) with convexity facing up, a c annular column for collecting the fluid little loaded with vapor or gas (116), and passages regularly arranged between the vertical tubes and allowing substantially dry vapor or gas to escape upward between said vertical tubes (106) . 2. Séparateur selon la revendication 1, caractérisé en ce que la chambre (112) de recueil de vapeur sèche ou de gaz est reliée par le bas à un conduit d'évacuation de la vapeur sèche ou du gaz (113) s'écartant latéralement de l'axe du séparateur avec un grand rayon de courbure.2. Separator according to claim 1, characterized in that the chamber (112) for collecting dry steam or gas is connected from below to a duct for evacuating dry steam or gas (113) spreading laterally of the separator axis with a large radius of curvature. 3. Séparateur selon les revendications 1 ou 2, caractérisé en ce que la couronne annulaire de recueil du fluide peu chargé en vapeur ou en gaz (116) est de faible volume et reliée à un récipient de grand volume de recueil dudit fluide, extérieur au séparateur.3. Separator according to claims 1 or 2, characterized in that the annular ring for collecting the fluid little loaded with vapor or gas (116) is of small volume and connected to a container of large volume for collecting said fluid, outside the separator. 4. Séparateur selon l'une des revendications 1 à 3, caractérisé en ce que la couronne annulaire de recueil du fluide peu chargé en vapeur ou en gaz (116) est reliée au récipient de recueil par au moins deux conduits (117, 118) régulièrement répartis sur son pourtour.4. Separator according to one of claims 1 to 3, characterized in that the annular ring for collecting the fluid little loaded with vapor or gas (116) is connected to the collection container by at least two conduits (117, 118) regularly distributed around its perimeter. 5. Séparateur selon l'une des revendications 1 à 4, caractérisé en ce qu'il comporte deux ou plusieurs tubulures latérales (120, 121) d'évacuation de vapeur sensiblement sèche ou de gaz échappés vers le haut entre lesdits tubes verticaux, régulièrement réparties sur son pourtour.5. Separator according to one of claims 1 to 4, characterized in that it comprises two or more lateral pipes (120, 121) for evacuating substantially dry vapor or gases escaped upward between said vertical tubes, regularly spread around its perimeter. 6. Séparateur selon l'une des revendications 1 à 5, caractérisé en ce que l'ensemble de l'enceinte d'admission, des tubes verticaux de séparation et du fond convexe repose par le bord inférieur dudit fond convexe sur une couronne (123) soudée à la virole externe (101, 102) du séparateur.6. Separator according to one of claims 1 to 5, characterized in that the assembly of the intake enclosure, vertical separation tubes and the convex bottom rests by the lower edge of said convex bottom on a crown (123 ) welded to the outer shell (101, 102) of the separator. 7. Séparateur selon l'une des revendications 1 à 6, caractérisé en ce que l'ensemble de l'enceinte d'admission et du volume libre autour des tubes verticaux de séparation est entouré par une enveloppe (15) interne en métal résistant à l'érosion- corrosion par la vapeur d'eau humide circulant à grande vitesse, solidaire du fond convexe, et en ce que la virole externe (101, 102) est en métal non résistant à l'érosion- corrosion par la vapeur d'eau humide circulant à grande vitesse.7. Separator according to one of claims 1 to 6, characterized in that the assembly of the intake enclosure and the free volume around the vertical separation tubes is surrounded by an internal envelope (15) of metal resistant to erosion- corrosion by wet steam circulating at high speed, integral with the convex bottom, and in that the outer shell (101, 102) is made of metal not resistant to erosion- corrosion by steam wet water circulating at high speed. 8. Séparateur selon l'une des revendications 1 à 6,caractérisé en ce qu'il comporte une virole unique (301, 302) entourant directement l'enceinte d'admission du mélange et le volume libre autour des tubes, et en ce que le fond plat (304) séparant l'enceinte d'admission et le volume autour des tubes est muni d'un rebord (26) relevé vers le haut soudé sur ladite virole unique sur au moins une partie de son pourtour (figure 3).8. Separator according to one of claims 1 to 6, characterized in that it comprises a single ferrule (301, 302) directly surrounding the mixture intake enclosure and the free volume around the tubes, and in that the flat bottom (304) separating the intake enclosure and the volume around the tubes is provided with a flange (26) raised upwards welded onto said single ferrule over at least part of its periphery (FIG. 3). 9. Séparateur selon la revendication 8, caractérisé en ce que ledit rebord relevé vers le haut est soudé sur la virole externe dans des secteurs (28) où les tubes verticaux sont relativement éloignés du bord dudit fond plat, et en ce qu'il reste libre (26B) dans des secteurs (29) où les tubes verticaux sont relativement proches du bord dudit fond plat.9. Separator according to claim 8, characterized in that said rim raised upwards is welded to the outer shell in sectors (28) where the vertical tubes are relatively far from the edge of said flat bottom, and in that it remains free (26B) in sectors (29) where the vertical tubes are relatively close to the edge of said flat bottom. 10. Séparateur selon la revendication 9, caractérisé en ce que l'intervalle entre le rebord relevé du fond et de la virole externe est recouvert par des bandes d'étanchéité élastiques (30) fixées de place en place à ladite virole externe.10. Separator according to claim 9, characterized in that the interval between the raised rim of the bottom and of the outer shell is covered by elastic sealing strips (30) fixed from place to place to said outer shell. 11. Séparateur selon l'une des revendications 8 à 10, caractérisé en ce que ledit fond plat est muni sur son pourtour d'orifices (31) reliés à des tubes coudés (32) d'évacuation à l'extérieur de la virole de l'eau susceptible de se déposer sur lLi.11. Separator according to one of claims 8 to 10, characterized in that said flat bottom is provided on its periphery with orifices (31) connected to bent tubes (32) for evacuation outside the shell of water likely to settle on l L i. 12. Séparatsur selon la revendication 11, caractérisé en ce que lesdits tubes coudés sont munis dans une partie verticale au voisinage dudit fond plat de soufflets de dilatation (33).12. Separator on according to claim 11, characterized in that said bent tubes are provided in a vertical part in the vicinity of said flat bottom with expansion bellows (33).
EP79101381A 1978-05-12 1979-05-07 Vertical separator of a mixture of steam or gas and liquid or solid particles Expired EP0005494B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7814212 1978-05-12
FR7814212A FR2425272A1 (en) 1978-05-12 1978-05-12 VERTICAL SEPARATOR FOR A MIXTURE OF VAPOR OR GAS AND LIQUID OR SOLID PARTICLES
FR7908784 1979-04-06
FR7908784A FR2452973A2 (en) 1979-04-06 1979-04-06 VERTICAL SEPARATOR OF A MIXTURE OF VAPOR OR GAS AND LIQUID OR SOLID PARTICLES

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EP0005494A1 true EP0005494A1 (en) 1979-11-28
EP0005494B1 EP0005494B1 (en) 1981-10-14

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EP (1) EP0005494B1 (en)
CA (1) CA1123756A (en)
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Also Published As

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DE2960977D1 (en) 1981-12-24
ES480485A1 (en) 1979-11-16
CA1123756A (en) 1982-05-18
US4280825A (en) 1981-07-28
EP0005494B1 (en) 1981-10-14

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