EP0005494A1 - Vertikal-Abscheider eines Gemisches von Dampf oder Gas mit flüssigen oder festen Teilchen - Google Patents

Vertikal-Abscheider eines Gemisches von Dampf oder Gas mit flüssigen oder festen Teilchen 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
Authority
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
English (en)
French (fr)
Other versions
EP0005494B1 (de
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.)
Filing date
Publication date
Priority claimed from FR7814212A external-priority patent/FR2425272A1/fr
Priority claimed from FR7908784A external-priority patent/FR2452973A2/fr
Application filed by Stein Industrie SA, Electricite de France SA filed Critical Stein Industrie SA
Publication of EP0005494A1 publication Critical patent/EP0005494A1/de
Application granted granted Critical
Publication of EP0005494B1 publication Critical patent/EP0005494B1/de
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.

Landscapes

  • 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)
EP79101381A 1978-05-12 1979-05-07 Vertikal-Abscheider eines Gemisches von Dampf oder Gas mit flüssigen oder festen Teilchen Expired EP0005494B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7814212A FR2425272A1 (fr) 1978-05-12 1978-05-12 Separateur vertical d'un melange de vapeur ou de gaz et de particules liquides ou solides
FR7814212 1978-05-12
FR7908784A FR2452973A2 (fr) 1979-04-06 1979-04-06 Separateur vertical d'un melange de vapeur ou de gaz et de particules liquides ou solides
FR7908784 1979-04-06

Publications (2)

Publication Number Publication Date
EP0005494A1 true EP0005494A1 (de) 1979-11-28
EP0005494B1 EP0005494B1 (de) 1981-10-14

Family

ID=26220593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79101381A Expired EP0005494B1 (de) 1978-05-12 1979-05-07 Vertikal-Abscheider eines Gemisches von Dampf oder Gas mit flüssigen oder festen Teilchen

Country Status (5)

Country Link
US (1) US4280825A (de)
EP (1) EP0005494B1 (de)
CA (1) CA1123756A (de)
DE (1) DE2960977D1 (de)
ES (1) ES480485A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0162441A2 (de) * 1984-05-23 1985-11-27 STEIN INDUSTRIE Société Anonyme dite: Zentrifugalseparator für Gemische
FR2564750A1 (fr) * 1984-05-23 1985-11-29 Electricite De France Separateur de melanges par centrifugation
FR2576224A2 (fr) * 1985-01-24 1986-07-25 Stein Industrie Separateur de melanges par centrifugation
US6620217B2 (en) 2001-06-19 2003-09-16 Balcke-Dürr Energietechnik GmbH Centrifugal separator for separating off water
RU2529672C1 (ru) * 2013-07-09 2014-09-27 Шлюмберже Текнолоджи Б.В. Многофазный сепаратор-измеритель

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886644A (en) * 1987-12-02 1989-12-12 Texaco Inc. Liquid degaser in an ebullated bed process
FI884183A (fi) * 1988-09-23 1990-03-13 Podolsky Mashinostroitelny Zavod Imeni Ordzhonikidze Centrifugalseparator.
DE69005206T2 (de) * 1989-06-20 1994-06-16 Sumitomo Light Metal Ind Vorrichtung zur Tröpfchenabscheidung.
DE10259410B4 (de) * 2002-12-19 2005-08-25 Forschungszentrum Karlsruhe Gmbh Aerosolabscheider
US7875103B2 (en) * 2006-04-26 2011-01-25 Mueller Environmental Designs, Inc. Sub-micron viscous impingement particle collection and hydraulic removal system
KR101309780B1 (ko) * 2007-04-17 2013-09-23 삼성전자주식회사 진공청소기의 사이클론 집진장치
US20120160187A1 (en) * 2010-12-23 2012-06-28 Paxton Corporation Zero emission steam generation process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE729104C (de) * 1940-07-25 1942-12-10 Metallgesellschaft Ag Rohrartige Vorrichtung zum Ausscheiden von Fluessigkeiten aus Gaen oder Gasgemischendurch Fliehkraft
FR1322176A (fr) * 1962-01-18 1963-03-29 Séparateur centrifuge à reprise
FR2078806A5 (de) * 1970-02-18 1971-11-05 Porta Test Mfg
FR2167529A1 (de) * 1972-01-10 1973-08-24 Shell Int Research
FR2357308A1 (fr) * 1976-07-05 1978-02-03 Electricite De France Perfectionnements aux dispositifs separateurs de phases

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1338143A (en) * 1918-05-13 1920-04-27 Frank R Mcgee Method of and apparatus for cleaning gases
US1333325A (en) * 1918-05-13 1920-03-09 Frank R Mcgee Apparatus for cleaning gases
FR1021374A (fr) * 1950-05-31 1953-02-18 Rechauffeurs D Air Aireco Soc Nouveaux perfectionnements apportés à la construction des appareils de captation de poussières par voie centrifuge
US3253999A (en) * 1961-08-18 1966-05-31 Westinghouse Electric Corp Boiling water nuclear reactor with improved vapor separating arrangement
US3520114A (en) * 1968-06-28 1970-07-14 Pall Corp Vortex air cleaner assembly having uniform particle removal efficiency throughout the array of air cleaners
US3868236A (en) * 1970-11-17 1975-02-25 Gutehoffnungshuette Sterkrade Centrifugal gas-liquid separator
DE2259076C3 (de) * 1972-12-02 1975-10-30 Gutehoffnungshuette Sterkrade Ag, 4200 Oberhausen Dampferzeuger
US4002432A (en) * 1975-04-25 1977-01-11 Exxon Research And Engineering Company Vapor-liquid separator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE729104C (de) * 1940-07-25 1942-12-10 Metallgesellschaft Ag Rohrartige Vorrichtung zum Ausscheiden von Fluessigkeiten aus Gaen oder Gasgemischendurch Fliehkraft
FR1322176A (fr) * 1962-01-18 1963-03-29 Séparateur centrifuge à reprise
FR2078806A5 (de) * 1970-02-18 1971-11-05 Porta Test Mfg
FR2167529A1 (de) * 1972-01-10 1973-08-24 Shell Int Research
FR2357308A1 (fr) * 1976-07-05 1978-02-03 Electricite De France Perfectionnements aux dispositifs separateurs de phases

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0162441A2 (de) * 1984-05-23 1985-11-27 STEIN INDUSTRIE Société Anonyme dite: Zentrifugalseparator für Gemische
FR2564750A1 (fr) * 1984-05-23 1985-11-29 Electricite De France Separateur de melanges par centrifugation
EP0162441A3 (en) * 1984-05-23 1986-06-11 Stein Industrie Societe Anonyme Dite: Centrifugal separator for mixtures
US4650578A (en) * 1984-05-23 1987-03-17 Stein Industrie Centrifuging mixture separator
FR2576224A2 (fr) * 1985-01-24 1986-07-25 Stein Industrie Separateur de melanges par centrifugation
US6620217B2 (en) 2001-06-19 2003-09-16 Balcke-Dürr Energietechnik GmbH Centrifugal separator for separating off water
RU2529672C1 (ru) * 2013-07-09 2014-09-27 Шлюмберже Текнолоджи Б.В. Многофазный сепаратор-измеритель

Also Published As

Publication number Publication date
US4280825A (en) 1981-07-28
DE2960977D1 (en) 1981-12-24
CA1123756A (fr) 1982-05-18
EP0005494B1 (de) 1981-10-14
ES480485A1 (es) 1979-11-16

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