EP0010261B1 - Vertikaler Wasserdampf-Abscheider-Überhitzer - Google Patents

Vertikaler Wasserdampf-Abscheider-Überhitzer Download PDF

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Publication number
EP0010261B1
EP0010261B1 EP79103904A EP79103904A EP0010261B1 EP 0010261 B1 EP0010261 B1 EP 0010261B1 EP 79103904 A EP79103904 A EP 79103904A EP 79103904 A EP79103904 A EP 79103904A EP 0010261 B1 EP0010261 B1 EP 0010261B1
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EP
European Patent Office
Prior art keywords
separator
pyramid
zone
annular
superheater
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP79103904A
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English (en)
French (fr)
Other versions
EP0010261A1 (de
EP0010261B2 (de
Inventor
Roger Bessouat
Jacques Marjollet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stein Industrie SA
Original Assignee
Stein Industrie SA
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Filing date
Publication date
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Application filed by Stein Industrie SA filed Critical Stein Industrie SA
Publication of EP0010261A1 publication Critical patent/EP0010261A1/de
Publication of EP0010261B1 publication Critical patent/EP0010261B1/de
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Publication of EP0010261B2 publication Critical patent/EP0010261B2/de
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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
    • F22B37/266—Separator reheaters

Definitions

  • the present invention relates to a vertical vapor separator-superheater comprising, inside a common shell, a lower part forming a separation zone, and an upper part forming a superheating zone, comprising an axial zone for the arrival of dry vapor, tubular bundles of overheating arranged in envelopes distributed around the central zone, and fixed to a thin and flexible ferrule itself fixed to the upper part of the common ferrule, and a peripheral zone for collecting superheated steam.
  • a separator-superheater of this kind makes it possible to absorb the expansions and contractions of the superheater bundles without special device such as expansion lyres, and facilitates the possible extraction of these bundles for their repair.
  • the arrangement of the separator elements grouped in several parallel rows of V-shaped stacks makes it less easy to access the internal walls of the lower zone of the separator-superheater, and it also imposes the orientation of the access pipes. wet steam to be treated, since this must arrive symmetrically with respect to the rows of stacks of separating elements.
  • the object of the present invention is to provide a separator-superheater which allows excellent accessibility to all the internal walls of the lower zone ensuring the separation function, and whose access pipes of the steam to be treated can have any orientation. It also aims to provide a set of separating elements in which the bodies for discharging the stopped water occupy a very small space.
  • the separator-superheater according to the present invention is characterized in that its lower part comprises an annular chamber for the admission of wet steam, connected to openings for introducing the latter, and separating elements grouped in two coaxial truncated pyramids, the external pyramid having its large base at a level lower than that of its small base, and the internal pyramid its large base at a level higher than that of its small base, and the annular chamber being connected by an annular passage to the interior volume at the outer pyramid, but outside the inner pyramid.
  • Flow organs for the water stopped in the separating elements are arranged at the edges of the truncated pyramids.
  • Part of the annular passage is formed by the internal wall of the bottom of the common ferrule.
  • FIG. 1 represents an axial section along axis II of FIG. 2 a separator-superheater in which the annular passage for the introduction of wet steam to the superheater elements descends to the vicinity of the bottom of the shell, part of this bottom constituting a wall of the passage.
  • FIG. 2 represents a diametral section along the axis II-II of FIG. 1.
  • Figure 3 shows in axial section another separator-superheater in which the annular passage for the introduction of wet steam is above the bottom of the shell.
  • the separator-superheater of FIG. 1 comprises, inside a cylindrical shell 1, supported by a usual annular support by a floor 2, a lower part 3 (forming a separator) and an upper part 4 (forming a superheater) .
  • the lower part is fitted with 4A pipes for supplying wet steam.
  • 4A pipes for supplying wet steam.
  • Part of the internal wall of this passage is formed by the wall 6A of the bottom of the shell. This makes it possible to reduce the total height of the separator part 3, but requires that the wall 6A be coated with stainless steel, like the rest of the passage wall, in order to avoid the phenomenon of erosion-corrosion by wet steam at high speed.
  • the other part of the external wall of the passage consists of sheets 7 angularly offset with respect to the vertical axis and separated by interstices 7A at stepped levels, ensuring a preliminary separation of the water droplets under the effect of the centrifugal force resulting from the change in direction of the vapor.
  • the water separated on the sheets 7 and flowing through the interstices 7A collects in the bottom 8 with the water retained in the separating elements, as will be indicated further on, and is evacuated via the axial tubing 9.
  • the separating elements are grouped in two truncated pyramids with an octagonal base, the external pyramid 10 having its large base downwards, and the internal pyramid 11 its large base upwards, the latter being substantially in contact with the small base of the external pyramid. It therefore appears between the two pyramids an annular gap 12, of decreasing width upwards, for the access of the wet steam to the separating elements. These are similar to those described in the intermediate document FR-A 2 406 157.
  • the pyramids of separating elements are provided along their external edges with elements for discharging separate water, such as 13A for the external pyramid and 13B for the internal pyramid.
  • the dried steam leaving the separating elements meets on the one hand, in an axial zone 14A, on the other hand in a peripheral zone 14B.
  • the assembly then rises through an intermediate zone 13 towards the upper overheating part 4.
  • This overheating part is similar to that described in the intermediate document FR-A 24 06 157 and will therefore not be described in detail again. It has an axial zone 15, around which are arranged four superheater bundles such as 16, 17. These are fixed to the internal surface of a thin shell 30, itself welded by its upper edge to the upper bottom 31 of the ferrule. The dried steam therefore rises towards the axial zone 15, then passes radially through the bundles while overheating and reaches an outlet pipe 19 through a peripheral zone 18 for collecting the superheated steam.
  • High pressure steam is supplied to the superheater bundles via the pipe 20, the O-manifold 21 and the fittings 22 connected to the end chambers 23.
  • FIG. 2 shows more precisely the arrangement of the separate water collection members, such as 13A, 13B, respectively at the edges of the outer and inner pyramids of the stacks of separating elements, therefore in the blind spots between the rectangular separators , only two of which have been represented.
  • This arrangement allows the useful volume offered to be reduced only to a small extent, while ensuring satisfactory flow of the separated water.
  • separator 32 of the external truncated pyramid and a separator 33 of the internal truncated pyramid. It can also be seen that the separator system is symmetrical with respect to the vertical axis of the shell.
  • FIG. 3 represents a separator-superheater similar to that of FIGS. 1 and 2, but in which the passage 6 of the wet steam from the inlet pipes to the separating elements is more distant from the bottom of the shell.
  • the identical members will therefore not be described again.
  • the passage 6 always prints a 180 ° bend with wet steam, which allows a preliminary separation of the water droplets on the sheets 7 delimiting the passage, with evacuation of the water by the interstices 7A between these sheets.
  • the number of sides of the truncated pyramids formed by the stacks of separators may be less than or greater than eight. It is possible to provide for a partial withdrawal of dried steam before it is introduced into the overheating zone.

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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)
  • Drying Of Solid Materials (AREA)

Claims (5)

1. Vertikaler Dampfabscheider-Überhitzer, der im Inneren eines gemeinsamen Gehäuses (1) einen unteren Teil (3), der einen Abscheidebereich bildet, und einen oberen Teil (4) aufweist, der den Überhitzungsbereich bildet, mit einer axialen Trockendampf-Einlaßzone (15), mit Überhitzerrohrbündeln (16, 17), die in Hüllen rund um den zentralen Bereich angeordnet sind, welche an einem dünnen und biegsamen Gehäuse (30) befestigt sind, das selbst am oberen Teil des gemeinsamen Gehäuses befestigt ist, und mit einer peripheren Zone (18) zum Auffangen des überhitzten Dampfes, dadurch gekennzeichnet, daß der untere Teil eine ringförmige Naßdampf-Einlaßkammer (5), die mit Naßdampf-Einlaßöffnungen (4A) verbunden ist, und Abscheideelemente aufweist, die in zwei koaxialen Pyramidenstümpfen gruppiert sind, wobei die große Basis der äußeren Pyramide (10) sich auf einer niedrigeren Ebene befindet als ihre kleine Basis und die große Basis der inneren Pyramide (11) sich auf einer höheren Ebene befindet als ihre kleine Basis und die ringförmige Kammer über einen ringförmigen Durchgang (6) mit dem zwischen innerer und äußerer Pyramide liegenden Raum verbunden ist.
2. Dampfabscheider-Überhitzer nach Anspruch 1, dadurch gekennzeichnet, daß der ringförmige Durchgang, der die ringförmige Einlaßkammer mit dem Raum zwischen der inneren und äußeren Pyramide verbindet, einen Knick von etwa 180° aufweist, der auf einer inneren Seite von winklig versetzten Blechen (7) begrenzt wird, die durch Zwischenräume (7A) voneinander getrennt werden, was eine Vorabscheidung eines Teils des im Naßdampf enthaltenen Wassers durch Zentrifugalkraft ermöglicht
3. Dampfabscheider-Überhitzer nach Anspruch 2, dadurch gekennzeichnet, daß die Zwischenräume zwischen den Blechen (7A) sich auf abgestuften Ebenen befinden.
4. Dampfabscheider-Überhitzer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß Ablaßorgane (13A, 13B) für das in den Abscheideelementen angehaltene Wasser an den Kanten der Pyramidenstümpfe angeordnet sind.
5. Dampfabscheider-Überhitzer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß ein Teil des ringförmigen Durchgangs aus der inneren Wand (6A) des Bodens des gemeinsamen Gehäuses gebildet wird.
EP79103904A 1978-10-18 1979-10-11 Vertikaler Wasserdampf-Abscheider-Überhitzer Expired EP0010261B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7829673A FR2439358A2 (fr) 1978-10-18 1978-10-18 Separateur-surchauffeur de vapeur vertical
FR7829673 1978-10-18

Publications (3)

Publication Number Publication Date
EP0010261A1 EP0010261A1 (de) 1980-04-30
EP0010261B1 true EP0010261B1 (de) 1982-05-19
EP0010261B2 EP0010261B2 (de) 1985-04-10

Family

ID=9213895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79103904A Expired EP0010261B2 (de) 1978-10-18 1979-10-11 Vertikaler Wasserdampf-Abscheider-Überhitzer

Country Status (6)

Country Link
US (1) US4273077A (de)
EP (1) EP0010261B2 (de)
CA (1) CA1118651A (de)
DE (1) DE2941825A1 (de)
ES (1) ES485103A2 (de)
FR (1) FR2439358A2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3307101C2 (de) * 1983-03-01 1985-09-26 L. & C. Steinmüller GmbH, 5270 Gummersbach Aus Blechpaketen bestehender Wasserabscheider zum Trocknen von Naßdampf mit anschließender Überhitzung des getrockneten Dampfes
DE3531054C1 (de) * 1985-08-30 1986-11-06 L. & C. Steinmüller GmbH, 5270 Gummersbach Vorrichtung zum Trocknen von Nassdampf und anschliessendem UEberhitzen des getrockneten Dampfes
CN103216817A (zh) * 2013-01-30 2013-07-24 珠海新市节能环保科技有限公司 一种用于锅炉的汽水隔离器
JP2020509322A (ja) * 2016-09-30 2020-03-26 パブリック ジョイント ストック カンパニー マシン−ビルディング プラント“ジオ ポドリスク” 過熱器
CN109966806B (zh) * 2017-12-28 2024-04-09 核动力运行研究所 一种基于立式汽水分离再热器的预分离器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2128897C3 (de) * 1971-06-11 1978-11-23 L. & C. Steinmueller Gmbh, 5270 Gummersbach Vorrichtung zum Abscheiden von in einem Gasstrom enthaltener Flüssigkeit
FR2187394B1 (de) * 1972-06-15 1974-12-27 Stein Industrie
US3867908A (en) * 1973-04-24 1975-02-25 Westinghouse Electric Corp Cross flow baffle for a steam generator
DE2555539A1 (de) * 1975-12-10 1977-06-23 Steinmueller Gmbh L & C Vorrichtung zum trocknen von nassdampf und anschliessendem ueberhitzen des getrockneten dampfes
US4068627A (en) * 1976-01-06 1978-01-17 Westinghouse Electric Corporation Steam generator with vertical tubesheets
DE2703024C3 (de) * 1977-01-26 1979-06-28 L. & C. Steinmueller Gmbh, 5270 Gummersbach Vorrichtung zum Trocknen von Naßdampf und anschließendem Oberhitzen des getrockneten Dampfes
FR2406157A1 (fr) * 1977-10-17 1979-05-11 Stein Industrie Separateur-surchauffeur de vapeur vertical

Also Published As

Publication number Publication date
FR2439358B2 (de) 1982-03-05
DE2941825A1 (de) 1980-04-30
FR2439358A2 (fr) 1980-05-16
EP0010261A1 (de) 1980-04-30
ES485103A2 (es) 1980-07-01
EP0010261B2 (de) 1985-04-10
US4273077A (en) 1981-06-16
CA1118651A (fr) 1982-02-23

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