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EP0010261A1 - Vertikaler Wasserdampf-Abscheider-Überhitzer - Google Patents

Vertikaler Wasserdampf-Abscheider-Überhitzer Download PDF

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Publication number
EP0010261A1
EP0010261A1 EP79103904A EP79103904A EP0010261A1 EP 0010261 A1 EP0010261 A1 EP 0010261A1 EP 79103904 A EP79103904 A EP 79103904A EP 79103904 A EP79103904 A EP 79103904A EP 0010261 A1 EP0010261 A1 EP 0010261A1
Authority
EP
European Patent Office
Prior art keywords
separator
internal
zone
pyramid
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.)
Granted
Application number
EP79103904A
Other languages
English (en)
French (fr)
Other versions
EP0010261B2 (de
EP0010261B1 (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
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9213895&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0010261(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Stein Industrie SA filed Critical Stein Industrie SA
Publication of EP0010261A1 publication Critical patent/EP0010261A1/de
Application granted granted Critical
Publication of EP0010261B1 publication Critical patent/EP0010261B1/de
Publication of EP0010261B2 publication Critical patent/EP0010261B2/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
    • F22B37/266—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 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 place.
  • 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 into two truncated coaxial 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 higher level to that of its small base, and the annular chamber being connected by an annular passage to the volume internal to the external pyramid, but external to the internal pyramid.
  • the annular passage connecting the annular inlet chamber L to the volume between the external and internal pyramids comprises a bend at approximately 180 °, delimited on an internal side by sheets separated by interstices allowing a preliminary separation of part of the water contained in moist steam, under the effect of centrifugal force.
  • Flow devices 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.
  • Figure 2 shows a diametrical section along the axis II-II of Figure 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 Figure 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 separating 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 storey 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 below, and is evacuated by the axial tube 9.
  • the separating elements are grouped into two truncated pyramids with an octagonal base, the external pyramid 10 having its large base downwards, and the internal pyramid 11 with its large base upwards, the latter being substantially in contact with the small base of the pyramid. external. 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.
  • 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 i y ial zone 14A, on the other hand in a peripheral zone 14B.
  • the assembly then rises in the upper overheating part 4.
  • This overheating part is similar to that described in said patent application 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 ferrule 30, itself welded by its upper edge to the upper bottom 31 of the ferrule.
  • the superheater bundles are supplied with high pressure steam via the pipe 20, the O-manifold 21 and the connections 22 connected to the end chambers 23.
  • the high pressure steam condensed mainly in the tubular bundles such as 16, 17 and arriving in the end chambers 24, are collected in the collector 25, then sent via the conduit 26 to the recipe pot 27.
  • 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 dead angles z between the rectangular dividers, only two of which have been shown.
  • 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 further 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 can 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.

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)
  • Drying Of Solid Materials (AREA)
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
FR7829673 1978-10-18
FR7829673A FR2439358A2 (fr) 1978-10-18 1978-10-18 Separateur-surchauffeur de vapeur vertical

Publications (3)

Publication Number Publication Date
EP0010261A1 true EP0010261A1 (de) 1980-04-30
EP0010261B1 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
CA3047873C (en) * 2016-09-30 2022-06-07 Public Joint Stock Company "Machine-Building Plant "Zio-Podolsk" Steam superheater
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2140391A1 (de) * 1971-06-11 1973-01-19 Steinmueller Gmbh L & C
FR2187394A1 (de) * 1972-06-15 1974-01-18 Stein Industrie
FR2334933A1 (fr) * 1975-12-10 1977-07-08 Steinmueller Gmbh L & C Dispositif de sechage de vapeur humide suivi de surchauffe de la vapeur sechee
DE2703024A1 (de) * 1977-01-26 1978-07-27 Steinmueller Gmbh L & C Vorrichtung zum trocknen von nassdampf und anschliessendem ueberhitzen des getrockneten dampfes
FR2406157A1 (fr) * 1977-10-17 1979-05-11 Stein Industrie Separateur-surchauffeur de vapeur vertical

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867908A (en) * 1973-04-24 1975-02-25 Westinghouse Electric Corp Cross flow baffle for a steam generator
US4068627A (en) * 1976-01-06 1978-01-17 Westinghouse Electric Corporation Steam generator with vertical tubesheets

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2140391A1 (de) * 1971-06-11 1973-01-19 Steinmueller Gmbh L & C
FR2187394A1 (de) * 1972-06-15 1974-01-18 Stein Industrie
FR2334933A1 (fr) * 1975-12-10 1977-07-08 Steinmueller Gmbh L & C Dispositif de sechage de vapeur humide suivi de surchauffe de la vapeur sechee
DE2703024A1 (de) * 1977-01-26 1978-07-27 Steinmueller Gmbh L & C Vorrichtung zum trocknen von nassdampf und anschliessendem ueberhitzen 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
EP0010261B2 (de) 1985-04-10
ES485103A2 (es) 1980-07-01
FR2439358A2 (fr) 1980-05-16
CA1118651A (fr) 1982-02-23
FR2439358B2 (de) 1982-03-05
DE2941825A1 (de) 1980-04-30
US4273077A (en) 1981-06-16
EP0010261B1 (de) 1982-05-19

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