EP0172336A1 - Dispositif pour répartir uniformément un mélange à deux phases - Google Patents

Dispositif pour répartir uniformément un mélange à deux phases Download PDF

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Publication number
EP0172336A1
EP0172336A1 EP85107184A EP85107184A EP0172336A1 EP 0172336 A1 EP0172336 A1 EP 0172336A1 EP 85107184 A EP85107184 A EP 85107184A EP 85107184 A EP85107184 A EP 85107184A EP 0172336 A1 EP0172336 A1 EP 0172336A1
Authority
EP
European Patent Office
Prior art keywords
container
level
section
discharge line
lowest level
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.)
Withdrawn
Application number
EP85107184A
Other languages
German (de)
English (en)
Inventor
Heinz Dr. Juzi
Marco Luca Bernasconi
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer 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
Application filed by Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of EP0172336A1 publication Critical patent/EP0172336A1/fr
Withdrawn legal-status Critical Current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
    • F22B37/22—Drums; Headers; Accessories therefor
    • F22B37/227—Drums and collectors for mixing
    • 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
    • Y10T137/2931—Diverse fluid containing pressure systems
    • 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
    • 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
    • Y10T137/86348—Tank with internally extending flow guide, pipe or conduit

Definitions

  • the invention relates to a device for uniformly distributing a two-phase mixture fed to a container onto at least one discharge line connected to the container, a level which separates the liquid from the gaseous phase being formed in the container and which can fluctuate between a lowest and a highest value, and the outlet cross-section of the discharge line is still wetted by the liquid phase even at the lowest level.
  • the known device has a high sensitivity to changes in the level. Such level differences can occur frequently in operation, namely as a result of changes in the operating state and also due to vibrations and / or shocks act on the container. If the proportion of liquid phase is small, it must be discharged from the container in small amounts, this small amount being supposed to be evenly distributed in the relatively large amount of the gaseous phase in the discharge lines. The greater the number of discharge lines, the more difficult this becomes. If, on the other hand, the proportion of liquid phase is large, it must reach the discharge lines in a sufficient amount of the gaseous phase. It has been shown that the known device cannot meet the requirement for an adaptation of the uniform distribution when large and rapid level changes occur.
  • Devices of the type mentioned are e.g. applied to steam generators fired with fossil fuels, the combustion chamber of which is formed from vertically tube-walled walls, the water to be evaporated flowing through the walls from bottom to top.
  • the combustion chamber of which is formed from vertically tube-walled walls, the water to be evaporated flowing through the walls from bottom to top.
  • the proportions of liquid and gaseous phases in the steam / water mixture leaving the combustion chamber walls there are changes in the proportions of liquid and gaseous phases in the steam / water mixture leaving the combustion chamber walls.
  • the heat distribution within the combustion chamber is not uniform, the heat absorption by the water in the individual pipes of the walls is uneven, which results in additional changes in the phase components for the water-steam mixture that emerges from the pipes.
  • the effect of the device according to the invention can be improved even more if the horizontal dimension of the mouth cross-section decreases - starting from the lowest level - this decrease taking place continuously or in stages.
  • the device has a tubular container 1, to which a plurality of supply lines 2 and a plurality of discharge lines 3 are connected from above.
  • a group of two discharge lines 3 is provided for each supply line 2.
  • the supply and discharge lines 2 and 3 protrude in the form of tubes with a circular cross-section into the space enclosed by the container 1, namely they end below the lowest level 6 that occurs during operation.
  • the container 1 is at the two ends, not shown, by means of a tightly welded disc 4 closed.
  • the discharge lines 3 have a smaller clear diameter than the feed lines 2.
  • the sections 3 ' are each provided with a slot 10 which is provided on the side facing away from the associated section 2' of the feed line 2 and in the longitudinal direction of the pipe section 3 '.
  • the slots 10 form the mouth cross section of the discharge lines 3, the horizontal dimension of which is constant here from bottom to top, since the vertical boundary edges are parallel.
  • the container 1 and the Sections 2 'and 3' of the supply lines 2 and the discharge lines 3 protruding into it are designed such that the ends of the sections are immersed in the liquid phase below the level 6, even at the lowest level at least 20% of the length of the slots 10 of the liquid phase is wetted. At the highest level, a small section of the slots always remains open.
  • the discharge lines 3 are arranged essentially vertically, whereas the supply lines 2 are somewhat inclined with respect to the vertical, but are perpendicular to the axis of the container 1. At the penetration points of the supply and discharge lines 2 and 3, these are tightly welded to the container wall.
  • a two-phase mixture for example of steam and water, flows via the feed lines 2, 2 'into the container 1, is distributed in the relatively large container space and thus loses speed considerably, with the two phases, of all, falling apart the effect of gravity, so that level 6 is formed.
  • the liquid and the gaseous phase flow through the slots 10 in accordance with the behavior already described, so that - since all discharge lines 3, 3' have the same operating conditions and the same dimensions are present - the ratio of gas or steam to liquid in the discharged mixture in all discharge lines 3, 3 'is practically the same.
  • the slot 41 delimiting the mouth cross section of the section 40 of the discharge line protruding into the container is formed by a slightly curved cutting surface which runs downwards against the axis of the section, so that the slot in the front view according to FIG has a trapezoidal outline.
  • the pipe section 42 of a discharge line is provided with a slot 43 through which .
  • a flat cutting surface has been created which runs downwards against the axis of the section, so that the slot appears in the front view according to FIG. 6 as a half ellipse.
  • the decrease in the horizontal dimension of the mouth cross section formed by the slot takes place more rapidly with increasing level in the example according to FIGS. 3 and 4 than in that according to FIGS. 5 and 6.
  • the change in the horizontal dimension of the slot 45 in the pipe section 44 of the discharge line according to FIGS. 7 and 8 is very particularly advantageous.
  • the slot 45 is approximately in the uppermost third like the slot 10 in FIGS. 1 and 2 and otherwise like that 3 and 4 formed slot 41. It has been shown that the shape of the slot 45 at the transition from the lowest to the highest level achieves a sufficiently rapid increase in the amount of liquid phase removed. This slot shape is also insensitive to level fluctuations to a sufficient extent.
  • the supply and discharge lines may include angles other than 90 ° with the longitudinal direction of the container or may also be curved; the supply lines can also be connected to the container from the side or from below.
  • the container can have a shape other than the circular cylindrical tube.
  • the supply and / or the discharge lines can be closed at their ends projecting into the container, so that the openings forming the respective mouth cross-section are only in the jacket of the pipe section in question, or the openings mentioned can have shapes other than those shown, for example as a helical slot; two or more parallel-flowing slots per pipe section are also possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
EP85107184A 1984-08-24 1985-06-11 Dispositif pour répartir uniformément un mélange à deux phases Withdrawn EP0172336A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4046/84 1984-08-24
CH404684 1984-08-24

Publications (1)

Publication Number Publication Date
EP0172336A1 true EP0172336A1 (fr) 1986-02-26

Family

ID=4268802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85107184A Withdrawn EP0172336A1 (fr) 1984-08-24 1985-06-11 Dispositif pour répartir uniformément un mélange à deux phases

Country Status (5)

Country Link
US (1) US4681129A (fr)
EP (1) EP0172336A1 (fr)
JP (1) JPS6155504A (fr)
AU (1) AU4661085A (fr)
PL (1) PL254240A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2694824B1 (fr) * 1992-08-11 1994-09-16 Inst Francais Du Petrole Dispositif de régulation et de distribution d'un fluide polyphasique.
US5291911A (en) * 1993-07-19 1994-03-08 Texaco Inc. Conical variable area throttling device
US6427671B1 (en) * 2000-07-17 2002-08-06 Caterpillar Inc. Exhaust gas recirculation mixer apparatus and method
US6371158B1 (en) * 2000-10-03 2002-04-16 Deere & Company Hydraulic system sump standpipe
EA007546B1 (ru) * 2003-06-24 2006-10-27 МОРТЕН МЮЛЛЕР ЛТД., АпС Устройство для разделения двухфазного потока на два или большее число потоков с желаемым соотношением пара и жидкости
US7261120B2 (en) * 2003-06-24 2007-08-28 Morten Muller Ltd. Aps Device for splitting a two-phase stream into two or more streams with the desired vapor/liquid ratios
US9175845B2 (en) * 2012-07-10 2015-11-03 Westinghouse Electric Company Llc Axial flow steam generator feedwater dispersion apparatus
DE102017102829A1 (de) * 2017-02-13 2018-08-16 Cardiobridge Gmbh Spülsystem

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2063380A (en) * 1935-10-18 1936-12-08 Peerless Ice Machine Company Refrigerant distributor
US2193696A (en) * 1937-08-23 1940-03-12 Young Radiator Co Distributor head for evaporators
US2196858A (en) * 1938-12-03 1940-04-09 Chrysler Corp Distributor head
US2220595A (en) * 1938-11-17 1940-11-05 Young Radiator Co Distributor head for evaporators
CH480590A (de) * 1968-08-13 1969-10-31 Tsni I Pk Kotloturbinny I Im I Verteiler für Gas-Flüssigkeits-Gemische
DE1526927A1 (de) * 1966-04-27 1969-12-18 Steinmueller Gmbh L & C Verteilung von Zweiphasen-Gemischen
FR2479961A3 (fr) * 1980-04-05 1981-10-09 Sueddeutsche Kuehler Behr Radiateur pour vehicules automobiles
EP0052773A2 (fr) * 1980-11-21 1982-06-02 R. & G. Schmöle Metallwerke GmbH & Co. KG Dispositif de distribution

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US266680A (en) * 1882-10-31 Liquid-distributer for refrig eratin g - m ac h in es
US1181910A (en) * 1915-03-06 1916-05-02 Hunter M Bennett Method of removing accumulated liquid from gas-mains and the like.
CH219260A (de) * 1941-01-17 1942-01-31 Sulzer Ag Vorrichtung zur gleichmässigen Zuführung eines flüssigen oder gasförmigen Mittels in parallel geschaltete Rohre.
US3636976A (en) * 1970-04-02 1972-01-25 Sun Oil Co Suction vortex eliminator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2063380A (en) * 1935-10-18 1936-12-08 Peerless Ice Machine Company Refrigerant distributor
US2193696A (en) * 1937-08-23 1940-03-12 Young Radiator Co Distributor head for evaporators
US2220595A (en) * 1938-11-17 1940-11-05 Young Radiator Co Distributor head for evaporators
US2196858A (en) * 1938-12-03 1940-04-09 Chrysler Corp Distributor head
DE1526927A1 (de) * 1966-04-27 1969-12-18 Steinmueller Gmbh L & C Verteilung von Zweiphasen-Gemischen
CH480590A (de) * 1968-08-13 1969-10-31 Tsni I Pk Kotloturbinny I Im I Verteiler für Gas-Flüssigkeits-Gemische
FR2479961A3 (fr) * 1980-04-05 1981-10-09 Sueddeutsche Kuehler Behr Radiateur pour vehicules automobiles
EP0052773A2 (fr) * 1980-11-21 1982-06-02 R. & G. Schmöle Metallwerke GmbH & Co. KG Dispositif de distribution

Also Published As

Publication number Publication date
PL254240A1 (en) 1986-06-17
JPS6155504A (ja) 1986-03-20
US4681129A (en) 1987-07-21
AU4661085A (en) 1986-02-27

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19861027

RIN1 Information on inventor provided before grant (corrected)

Inventor name: JUZI, HEINZ, DR.

Inventor name: BERNASCONI, MARCO LUCA