EP0206303B1 - Vorrichtung zum Trocknen und Überhitzen von Dampf - Google Patents

Vorrichtung zum Trocknen und Überhitzen von Dampf Download PDF

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Publication number
EP0206303B1
EP0206303B1 EP86108539A EP86108539A EP0206303B1 EP 0206303 B1 EP0206303 B1 EP 0206303B1 EP 86108539 A EP86108539 A EP 86108539A EP 86108539 A EP86108539 A EP 86108539A EP 0206303 B1 EP0206303 B1 EP 0206303B1
Authority
EP
European Patent Office
Prior art keywords
steam
superheater
water separator
pressure tank
separator
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
EP86108539A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0206303A1 (de
Inventor
Günter Dr. Keintzel
Klaus Westebbe
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.)
Hitachi Zosen Inova Steinmueller GmbH
Original Assignee
L&C Steinmueller GmbH
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
Application filed by L&C Steinmueller GmbH filed Critical L&C Steinmueller GmbH
Publication of EP0206303A1 publication Critical patent/EP0206303A1/de
Application granted granted Critical
Publication of EP0206303B1 publication Critical patent/EP0206303B1/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 invention relates to a device according to the preamble of claim 1.
  • Such a device is known from EP-A-128 252.
  • the dried saturated steam from the water separator enters a space which is limited by the outlet side of the water separator, the inlet surface of the superheater and part of the inner wall of the pressure vessel.
  • the superheated steam emerging from the superheater enters a partial space which is delimited by the outlet surface of the superheater, separating plates and another part of the inner wall of the pressure vessel.
  • the known device thus has different rooms in which there are very different temperatures during operation of the device, so that a deformation of this container cannot be ruled out due to the uneven temperature distribution over the circumference of the pressure vessel.
  • a device in which the two systems accommodated in the pressure jacket, namely water separators and superheaters, are structurally connected to one another over their entire length. Due to different temperatures in both systems, the connection must not only be made pushing but also sealing to avoid bypass flows. The inner surface of the pressure jacket is partially or completely exposed to wet steam and must therefore be protected against corrosion by plating or baffles in a costly manner.
  • the known arrangement there is a parallel arrangement of the water separation units to the incoming steam. In order to evenly apply the water in the steam to the water separator units, considerable resistances in the form of rectifiers must be installed, each of which means a pressure loss and thus a reduction in performance.
  • the length of the pressure vessel can be adapted to the length of an LP turbine. This concept ensures that the steam outlet lines are routed extremely cheaply. The lines can be very short, so the pressure and heat loss is low.
  • the superheater is supported and the separator is suspended, since this can be done on common cantilever arms.
  • the superheater is suspended from tie rods on the wall of the pressure vessel.
  • the water separator it has the shape of a truncated pyramid or truncated cone in the direction of the container axis, and that the water separator units determining the water separator are arranged with their steam inflow surface to the axis of the container at an angle ⁇ between 10 ° and 90 °.
  • the steam which is relaxed and thus wet in the HP part of the turbine, enters the water separator 3 via one or more connecting pieces 2.
  • the water separator is formed from baffles 4 and water separator units 5.
  • the water separator tapers - on the inflow side - along its entire length. This taper and the steam outflow surfaces 5a of the water separation units 5 arranged at an angle a of 10 ° to 90 ° to the main flow direction achieve an almost uniform impingement of the water separation units 5. Rectifiers in the form of blind-like sheets and / or perforated sheets are only required to a small extent.
  • the wet steam arrives from the inlet port 2 directly into the interior of the water separator. When the steam flows through the water separation units 5, the steam is mechanically dried.
  • the steam entry speed is reduced by appropriately dimensioning the inflow cross section of the separation system.
  • Splash water and / or larger water drops fall out of the steam flow and are discharged via a separate discharge system 6 arranged on the lower steam baffle.
  • the steam thus dried only comes into contact with the wall of the pressure jacket 1. No water-related corrosion can occur on the unplated pressure jacket walls.
  • the single- or multi-flow and / or single- or multi-stage superheater essentially consists of the tube bundles 8, which can be designed both as a U-tube or straight tube heat exchanger.
  • the tube bundles 8 can be inclined and / or operated with so-called motive steam to allow the condensate formed during the heat exchange to run off.
  • the assemblies of the superheater 7 are suspended from the tank jacket 1 via tie rods 11, while the water separator 3 is supported in a sliding manner on brackets 12 welded to the pressure jacket 1.
  • Cantilever arms 13 in the form of an I-iron are attached laterally to the inner wall of the pressure jacket.
  • the superheater 7 is slidably supported on these by sliding shoes 14, while the water separator 3 is slidably attached to the cantilever arms 13 by means of suspensions 15 which grip over the lower flange of the I-iron.
  • FIG. 5 shows the assignment of two devices to a turbine, which illustrates the short connection of the outlet connections 10 to the turbine housing.
  • FIGS. 1, 3 and 4 Reference is expressly made to the assignment of the individual assemblies which can be seen from FIGS. In an embodiment according to FIGS. 1, 3 and 4 with two superheater assemblies, a flow resistance is installed between them, as indicated in FIG. 1 at 7a.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Separating Particles In Gases By Inertia (AREA)
EP86108539A 1985-06-22 1986-06-23 Vorrichtung zum Trocknen und Überhitzen von Dampf Expired EP0206303B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853522428 DE3522428A1 (de) 1985-06-22 1985-06-22 Vorrichtung zum trocknen und ueberhitzen von dampf
DE3522428 1985-06-22

Publications (2)

Publication Number Publication Date
EP0206303A1 EP0206303A1 (de) 1986-12-30
EP0206303B1 true EP0206303B1 (de) 1989-05-31

Family

ID=6273948

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86108539A Expired EP0206303B1 (de) 1985-06-22 1986-06-23 Vorrichtung zum Trocknen und Überhitzen von Dampf

Country Status (5)

Country Link
US (1) US4708093A (pl)
EP (1) EP0206303B1 (pl)
DE (2) DE3522428A1 (pl)
ES (1) ES8706927A1 (pl)
IN (1) IN163409B (pl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7640749B2 (en) * 2006-02-16 2010-01-05 Yousoufian Hrant H Moisture separator and reheater
US7993426B2 (en) * 2006-08-28 2011-08-09 Mitsubishi Heavy Industries, Ltd. Moisture separator
DE102011081865A1 (de) 2011-08-31 2013-02-28 Siemens Aktiengesellschaft Vorrichtung zum Trocknen und Überhitzen von Dampf

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH494920A (de) * 1968-10-25 1970-08-15 Balcke Ag Maschbau Vorrichtung zum Abscheiden von Wasser aus Dampf mit eingebautem Überhitzer

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593500A (en) * 1968-11-25 1971-07-20 Westinghouse Electric Corp Device for separating moisture-laden vapor
FR2116645A5 (pl) * 1970-12-02 1972-07-21 Babcock Atlantique Sa
FR2196702A5 (pl) * 1972-08-21 1974-03-15 Babcock Atlantique Sa
US4015562A (en) * 1975-07-25 1977-04-05 Foster Wheeler Energy Corporation Moisture separator and reheater
US4016835A (en) * 1975-08-01 1977-04-12 Southwestern Engineering Company Moisture separator-reheater
DE2555539A1 (de) * 1975-12-10 1977-06-23 Steinmueller Gmbh L & C Vorrichtung zum trocknen von nassdampf und anschliessendem ueberhitzen des getrockneten dampfes
FR2346636A1 (fr) * 1976-03-30 1977-10-28 Stein Industrie Dispositif echangeur de surchauffe de vapeur d'eau a deux enveloppes coaxiales et a axe horizontal
FR2424477A1 (fr) * 1978-04-28 1979-11-23 Stein Industrie Dispositif echangeur de sechage et de surchauffe de vapeur
DE2901272A1 (de) * 1979-01-13 1980-07-24 Balcke Duerr Ag Vorrichtung zum ueberhitzen von dampf
US4246872A (en) * 1979-04-30 1981-01-27 General Electric Company Heat exchanger tube support
US4485069A (en) * 1982-01-20 1984-11-27 Westinghouse Electric Corp. Moisture separator reheater with round tube bundle
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
DE3372035D1 (en) * 1983-06-13 1987-07-16 Babcock & Wilcox Co Nuclear power plant and apparatus for superheating steam
FR2553867B1 (fr) * 1983-10-19 1985-12-27 Stein Industrie Separateur surchauffeur de vapeur et son procede de montage

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH494920A (de) * 1968-10-25 1970-08-15 Balcke Ag Maschbau Vorrichtung zum Abscheiden von Wasser aus Dampf mit eingebautem Überhitzer

Also Published As

Publication number Publication date
US4708093A (en) 1987-11-24
IN163409B (pl) 1988-09-17
DE3663732D1 (en) 1989-07-06
EP0206303A1 (de) 1986-12-30
DE3522428C2 (pl) 1988-09-29
DE3522428A1 (de) 1987-01-02
ES556279A0 (es) 1987-07-16
ES8706927A1 (es) 1987-07-16

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