EP0051200B2 - Verteiler für Zweiphasengemische, insbesondere Wasser-Dampf-Mischungen in Zwangsdurchlaufkesseln - Google Patents

Verteiler für Zweiphasengemische, insbesondere Wasser-Dampf-Mischungen in Zwangsdurchlaufkesseln Download PDF

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Publication number
EP0051200B2
EP0051200B2 EP81108508A EP81108508A EP0051200B2 EP 0051200 B2 EP0051200 B2 EP 0051200B2 EP 81108508 A EP81108508 A EP 81108508A EP 81108508 A EP81108508 A EP 81108508A EP 0051200 B2 EP0051200 B2 EP 0051200B2
Authority
EP
European Patent Office
Prior art keywords
distributor
inlet pipe
baffle plate
drum
outlet pipes
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
EP81108508A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0051200B1 (de
EP0051200A1 (de
Inventor
Egon Schneider
Wolfgang Dipl.-Ing. Köhler
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.)
Siemens AG
Original Assignee
Kraftwerk Union AG
Siemens AG
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=6115577&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0051200(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kraftwerk Union AG, Siemens AG filed Critical Kraftwerk Union AG
Priority to AT81108508T priority Critical patent/ATE4002T1/de
Publication of EP0051200A1 publication Critical patent/EP0051200A1/de
Publication of EP0051200B1 publication Critical patent/EP0051200B1/de
Application granted granted Critical
Publication of EP0051200B2 publication Critical patent/EP0051200B2/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
    • F22B37/62—Component parts or details of steam boilers specially adapted for steam boilers of forced-flow type
    • F22B37/70—Arrangements for distributing water into water tubes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85938—Non-valved flow dividers

Definitions

  • the invention relates to a distributor for water-steam mixtures in a once-through boiler, with a distributor drum into which an inlet pipe leads and from which several outlet pipes arranged at an angle to the direction of the inlet pipe start.
  • Such a distributor is known from FR-A-1 419 832.
  • Such distributors are also provided, for example, between different boiler areas, where after a first heating in relatively large pipe cross sections, a transfer to superheater areas with pipes of larger numbers but smaller cross sections takes place.
  • the distribution on the drain pipes should be as even as possible to avoid negative effects, for example overheating in weakly loaded boiler areas. So far, this task has not been completely satisfactorily achieved.
  • the distributor drum has a flat baffle plate which is perpendicular to the direction of the inlet pipe and whose edge is symmetrical to the longitudinal axis of the inlet pipe and to the mouths of the outlet pipes and leads to the outlet pipes at an angle of more than 135 °, so that the flow reaches the drain pipes without any further disturbance.
  • the distribution is evened out in that the liquid component emerging from the inlet pipe, irrespective of its distribution over the pipe cross-section, runs evenly on all sides from the stagnation point by changing the direction on the flat baffle plate.
  • the liquid component On the edge leading to the drain pipes symmetrically and smoothly in the invention, the liquid component then continues to flow without disturbance, so that the uniformity is maintained regardless of irregularities in the flow in the inlet pipe and the drain pipes in the same way, i.e. H. with equal proportions of liquid and vaporous medium.
  • baffle plate is a circular disc which is arranged in a rotationally symmetrical distributor drum opposite the cylindrical feed pipe.
  • the baffle plate it is also conceivable to design the baffle plate as a regular polygon with relatively few drain pipes, in the corners of which the drain pipes lie.
  • the edge leading smoothly to the drain pipes should prevent the liquid component evenly distributed on the baffle plate by the deflection from becoming uneven again due to disturbances, for example corners at the edge.
  • the edge can lead obliquely, in particular curved, to the drain pipes.
  • corners with walls that run at an acute angle to one another should be avoided, while corners with obtuse angles of, for example, more than 135 ° are permissible because they practically no longer interfere.
  • a rotationally symmetrical arrangement of the distributor is particularly advantageous for large raw reams with eight or more tubes on a distributor drum.
  • the diameter of the circular disk should be larger than the diameter of the inlet pipe, for example 1.2 to 2 times.
  • the same dimensions are chosen accordingly.
  • the distance of the baffle plate from the mouth of the inlet pipe must be at least so large that the baffle plate has no blocking effect with an undesirably high flow resistance. It is a good value, for example, if the distance is approximately as large as the diameter of the inlet pipe.
  • the invention can be carried out in such a way that the baffle plate and the outlet pipes are arranged in one half and the inlet pipe in the other half of the ball and that the two halves are flanged together or are welded.
  • the side of the baffle plate facing away from the inlet pipe can be adapted to the spherical shape of the distributor drum in order to obtain a uniform support.
  • the plate and the distributor drum which may be stressed by vibrations, as will be explained in more detail later.
  • the baffle plate is formed by a flat wall area of the distributor drum. So here the baffle plate is not an additional component but a specially shaped area of the distributor drum itself. This region can be an integral part of the wall of the distributor drum, which is manufactured as a forged piece, for example. However, it can also be formed by a welded-in floor with a special material if required.
  • the distributor 1 belongs to a once-through boiler with fossil fueling. It sits between a first heating zone charged with feed water and a second heating zone in which further evaporation and / or overheating takes place. For this reason, a water-steam mixture comes from the first heating zone at a pressure of, for example, 90 to 160 bar in an inlet pipe 2 in the direction of the arrow 3.
  • the water flows above all at a speed of, for example, 2 to 6 m / s along the wall of the pipe 2, while the steam at a speed of 15 to 20 m / s primarily in the middle of the circular pipe cross-section.
  • the tube 2 has a diameter d of, for example, 360 mm. It protrudes by approximately this diameter into a spherical distributor drum 4, which is welded together at 7 from two hemispheres 5 and 6.
  • the ball diameter is 700 mm.
  • a flat circular disk is arranged as a baffle plate 10 in a rotationally symmetrical manner with respect to the axis 8 of the inlet pipe 2 shown in dash-dotted lines, which also passes through the center of the ball 4.
  • the baffle plate 10 is exactly opposite the inlet line 2. Their plane forms a right angle with the vertical axis 3 of the inlet pipe 2, the axis 8 passing through the center of the circle of the baffle plate 10.
  • the edge 12 of the baffle plate is welded to the wall of the underside 6 of the drum 4, a smooth transition being created.
  • the angle 14 which is formed on the weld seam 13 is, at 150 °, far greater than an acute angle. This results in a smooth transition from the baffle plate 10 to drain pipes 15, which are arranged symmetrically around the circumference on the lower part 6 of the drum, as shown in FIG. 2.
  • the diameter D of the baffle plate 10, at 460 mm, is more than 1/4 larger than the diameter d of the inlet pipe 2. This ensures that an expanding beam, which is indicated by the arrows 16, also has one for the uniform one Spread sufficient distance from the edge 12 hits the baffle plate 10.
  • the diameter D can also be chosen larger, for example 2d.
  • the distance A of the baffle plate 10 from the mouth 18 of the inlet pipe 2 is suitably 1 to 4 times the diameter d.
  • the value is not critical and can also be selected to be smaller, in particular at low flow velocities, for example 0.8d, if this does not cause undesired throttling of the flow.
  • the water of the two-phase mixture supplied asymmetrically in the inlet pipe 2 due to pipe elbows or for other reasons is distributed uniformly over the flat surface of the baffle plate 10. This also results in an even distribution between the eight drain pipes 15 distributed around the edge of the lower part 6. This means that the other areas of a superheater zone (not shown) in the boiler connected to the drain pipes 15 are evenly supplied with liquid and steam in the desired manner, such as is represented by the arrows 19. This prevents local overheating there.
  • FIG. 1 Another embodiment of the invention, in which the plate opposite the inlet pipe 2 at right angles and symmetrically is formed by the wall of the distributor drum 4 itself, can be thought of as omitting the spherical region 20 below the baffle plate 10.
  • the side of the baffle plate 10 facing away from the tube 2 can also be adapted to the spherical shape of the half 6 with the hatched area 21.
  • baffle plate 10 can, however, also be designed and arranged in such a way that its bulged edge extends directly to the drain pipes 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
EP81108508A 1980-10-30 1981-10-19 Verteiler für Zweiphasengemische, insbesondere Wasser-Dampf-Mischungen in Zwangsdurchlaufkesseln Expired EP0051200B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81108508T ATE4002T1 (de) 1980-10-30 1981-10-19 Verteiler fuer zweiphasengemische, insbesondere wasser-dampf-mischungen in zwangsdurchlaufkesseln.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3040927 1980-10-30
DE3040927A DE3040927C1 (de) 1980-10-30 1980-10-30 Verteiler fuer Zweiphasengemische,insbesondere Wasser-Dampf-Mischungen in Zwangsdurchlaufkesseln

Publications (3)

Publication Number Publication Date
EP0051200A1 EP0051200A1 (de) 1982-05-12
EP0051200B1 EP0051200B1 (de) 1983-06-29
EP0051200B2 true EP0051200B2 (de) 1988-07-20

Family

ID=6115577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81108508A Expired EP0051200B2 (de) 1980-10-30 1981-10-19 Verteiler für Zweiphasengemische, insbesondere Wasser-Dampf-Mischungen in Zwangsdurchlaufkesseln

Country Status (8)

Country Link
US (1) US4593653A (enrdf_load_stackoverflow)
EP (1) EP0051200B2 (enrdf_load_stackoverflow)
JP (1) JPS57104005A (enrdf_load_stackoverflow)
AT (1) ATE4002T1 (enrdf_load_stackoverflow)
CA (1) CA1167737A (enrdf_load_stackoverflow)
DE (1) DE3040927C1 (enrdf_load_stackoverflow)
DK (1) DK149717C (enrdf_load_stackoverflow)
ZA (1) ZA817499B (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3123261A1 (de) * 1981-06-12 1982-12-30 Volkswagenwerk Ag, 3180 Wolfsburg Vorrichtung zur gleichmaessigen verteilung einer 2phasen-stroemung
DE3145573C2 (de) * 1981-11-17 1985-03-28 L. & C. Steinmüller GmbH, 5270 Gummersbach Massenstromverteileinrichtung zum Aufteilen eines Wasser-Dampf-Gemisches
JPH0612165B2 (ja) * 1985-09-06 1994-02-16 三菱重工業株式会社 気液二相流体分配器
US4907619A (en) * 1988-06-15 1990-03-13 Delta Conveying Inc. Flow proportioner apparatus
US6945266B2 (en) * 2001-10-19 2005-09-20 Metallic Power, Inc. Manifold for fuel cell system
US6679280B1 (en) * 2001-10-19 2004-01-20 Metallic Power, Inc. Manifold for fuel cell system
DE10330659B3 (de) * 2003-07-08 2004-12-23 Gea Energietechnik Gmbh Abdampfleitung für Dampfkraftanlagen
MX2010012015A (es) * 2008-05-06 2010-12-01 Fluor Tech Corp Metodos y aparatos para separar un flujo de fases multiples.
US8726663B2 (en) * 2010-01-05 2014-05-20 General Electric Company Combined cycle system employing phase change material
EP2712663A1 (de) 2012-10-01 2014-04-02 Basf Se Verfahrenstechnischer Apparat, insbesondere Kolonne, mit einem horizontalen Zulauf für ein Fluid, insbesondere Zweiphasenströmung, und einer Umlenkeinheit für das Fluid
CN109340758B (zh) * 2018-09-03 2020-08-21 江西国财中洁新能环境产业有限公司 一种高效的垃圾热解装置
CN111895846B (zh) * 2020-06-11 2021-12-07 中海石油气电集团有限责任公司 一种圆盘式气液两相流体均布装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US629520A (en) * 1898-12-10 1899-07-25 Robert Ludwig Mond Method of heating liquids.
US1599726A (en) * 1920-12-08 1926-09-14 Donald V H Smith Tubulous steam generator
US1650632A (en) * 1925-04-30 1927-11-29 Gen Electric Electrode steam boiler
US1887147A (en) * 1929-01-28 1932-11-08 Int Comb Eng Corp Regulating system for high capacity boilers
US2239895A (en) * 1938-12-15 1941-04-29 Riley Stoker Corp Waste heat boiler
US2299849A (en) * 1940-07-19 1942-10-27 Thomas J Rees Steam generating plant
US3048373A (en) * 1957-08-30 1962-08-07 Phillips Petroleum Co Heat exchange apparatus and method
GB871561A (en) * 1959-04-21 1961-06-28 Andre Huet Improvements in or relating to fluid distributing systems
FR1419832A (fr) * 1964-10-21 1965-12-03 Siemens Ag Dispositif de distribution pour des systèmes tubulaires de chaudières à circulation forcée
US3338218A (en) * 1965-10-22 1967-08-29 Foster Wheeler Corp Once-through boiler downcomer flow distribution system
FR1505376A (fr) * 1966-06-03 1967-12-15 Du Pont Appareil perfectionné de division d'un courant de fluide visqueux
FR2210273A5 (enrdf_load_stackoverflow) * 1972-12-06 1974-07-05 Gutehoffnungshuette Sterkrade
US3899000A (en) * 1973-09-20 1975-08-12 Atlantic Richfield Co Liquid-vapor distributor
JPS577989Y2 (enrdf_load_stackoverflow) * 1977-07-12 1982-02-16
US4333629A (en) * 1980-03-11 1982-06-08 Pepsico, Inc. Floating manifold for multi-cavity injection mold

Also Published As

Publication number Publication date
DK149717B (da) 1986-09-15
ATE4002T1 (de) 1983-07-15
DK477281A (da) 1982-05-01
CA1167737A (en) 1984-05-22
US4593653A (en) 1986-06-10
EP0051200B1 (de) 1983-06-29
EP0051200A1 (de) 1982-05-12
JPH0220883B2 (enrdf_load_stackoverflow) 1990-05-11
ZA817499B (en) 1982-10-27
JPS57104005A (en) 1982-06-28
DK149717C (da) 1987-03-30
DE3040927C1 (de) 1981-10-15

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