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EP1723377B1 - Distributeur de liquide - Google Patents

Distributeur de liquide Download PDF

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Publication number
EP1723377B1
EP1723377B1 EP05730198A EP05730198A EP1723377B1 EP 1723377 B1 EP1723377 B1 EP 1723377B1 EP 05730198 A EP05730198 A EP 05730198A EP 05730198 A EP05730198 A EP 05730198A EP 1723377 B1 EP1723377 B1 EP 1723377B1
Authority
EP
European Patent Office
Prior art keywords
liquid
distributor
tank
charging tubes
tubes
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 - Lifetime
Application number
EP05730198A
Other languages
German (de)
English (en)
Other versions
EP1723377A2 (fr
Inventor
Mario Harm
Christian Schweigler
Franz Storkenmaier
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.)
ZAE Bayern Bayerisches Zentrum fuer Angewandte Energieforschung eV
Original Assignee
ZAE Bayern Bayerisches Zentrum fuer Angewandte Energieforschung eV
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 ZAE Bayern Bayerisches Zentrum fuer Angewandte Energieforschung eV filed Critical ZAE Bayern Bayerisches Zentrum fuer Angewandte Energieforschung eV
Publication of EP1723377A2 publication Critical patent/EP1723377A2/fr
Application granted granted Critical
Publication of EP1723377B1 publication Critical patent/EP1723377B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00—Component parts of trickle coolers
    • F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
    • F28D3/04—Distributing arrangements

Definitions

  • the invention relates to a liquid distributor according to claim 1.
  • the uniform distribution of liquid on a surface is used in a variety of technical applications, such. As absorber, evaporator, tube bundle heat exchangers, etc. necessary.
  • a falling film heat exchanger having a distribution trough with a trough bottom in which a plurality of tipping tubes distributed regularly over the trough bottom are provided.
  • the feed tubes extend downwardly from the bottom of the pan bottom and submerge in a liquid sump whose overflow opens into evaporator tubes. The liquid emerging from the lower opening of the feed tube thus forcibly mixes with liquid from other feed tubes.
  • US-A-5, 622, 060 is a device for uniform application of aqueous LiBr solution to a tube bundle known.
  • a distributor tube is arranged above the tube bundle, which has distributor slots from which the aqueous LiBr solution to be distributed emerges and drips onto the tube bundle.
  • the distribution slots have inwardly into the manifold facing side walls, so that in the manifold first a certain liquid level must be exceeded before liquid exits through the distribution slots.
  • the distribution slots have a regular distribution, but can drop from adjacent distribution slots run into each other and then drain together. Thus, the uniform distribution of the liquid is no longer guaranteed.
  • a liquid distributor for uniform application of liquid to be distributed on a tube bundle known.
  • a distributor trough is arranged above the tube bundle.
  • a plurality of uniformly distributed outlet openings are provided, through which the liquid to be dispensed exits and drips onto the tube bundle.
  • These outlet openings arranged in a flat surface define a liquid distribution area. Again, the regular distribution of the liquid is disturbed by the fact that leaking from the individual outlet openings into each other and then drip together.
  • a specifically adjustable, in particular a uniform distribution profile over the liquid distribution area is therefore not possible.
  • the inwardly projecting feed tubes also have a dirt-Rückhal tefunktion, since at the bottom of the distribution tray settling dirt can not penetrate into the feed tubes.
  • inventive liquid distributor can operate without pressure, i. the desired fluid profile, e.g. a uniform distribution of liquid is achieved solely by gravity.
  • the liquid to be distributed is not introduced directly into the distribution trough, but the liquid supply comprises a Vorabsetzwanne, in which the liquid feed opens.
  • the Vorabsetzwanne serves to calm the liquid.
  • the calmed liquid then passes through an overflow into the distribution tank. By settling, dirt can settle and does not get into the distribution tray.
  • the smoothed liquid flow enables outgassing or controlled removal of steam when superheated liquids enter the liquid distributor. (Claim 2)
  • a dirt separator is provided in the Vorabsetzwanne before the overflow. This prevents dirt particles from getting into the distribution tray and adding individual feed tubes. (Claim 3 and 4)
  • the diesstechniksverteil Colour is dimensioned so that the liquid level in the distributor trough is higher than the level of the upper opening of the feed tube. This is achieved by the number of feed tubes per unit area and by the dimensions of the feed tubes themselves. This is always ensured that liquid can enter all the upper openings of the feed tube and thus can drain from the lower opening of the feed tube. Slight inclinations, which may be temporary, therefore do not adversely affect the desired fluid distribution profile. (Claim 6)
  • the feed tubes are provided with different diameters and / or have different lengths, so that it is possible to set a particular liquid distributor profile. (Claim 7)
  • the liquid distribution profile can also be influenced by the fact that the level of the upper opening of the feed tube is chosen differently. As a result, for example, the desired or necessary inclined position of the distribution tray can be compensated. Moreover, this allows the amount of distributed liquid to influence specifically by once as much liquid is added to the distribution tray at different high feed tubes, so that all the upper openings are flooded or only as much Liquid is supplied, that only a part of the upper openings of the feed tube is flooded. (Claim 8)
  • the liquid distribution profile can be influenced. (Claim 9)
  • a Schmutzabscheidevorraum is also provided in the region of the upper opening of the feed tube. This also prevents dirt from clogging the feed tube. (Claim 10)
  • the feed tubes are designed as spiral tension pins which are fitted in bores in the trough bottom of the distributor trough.
  • spiral clamping pins results in a very simple installation by means of a press fit in the holes in the bottom of the tank.
  • Figs. 1 and 2 show a first exemplary embodiment of the invention.
  • the liquid distributor according to the invention is cuboid as a whole. It comprises a distributor trough 2 with a flat trough bottom 4. Via a liquid feed 6 with a liquid inlet 8, the liquid to be distributed passes into the distributor trough 4.
  • a plurality of liquid drains 10 are provided which define a liquid distribution region 12.
  • the liquid drains 10 are regularly distributed over the rectangular tub bottom 4.
  • the liquid drains 10 include holes 14 in the tub bottom 4 in each of which a feed tube 16 with an upper opening 18 and a lower opening 20 is fitted liquid-tight.
  • the feed tubes 16 pass through the tub bottom 4 and protrude slightly into the interior of the distributor pan 2 and extend downwardly beyond the underside of the pan bottom 4.
  • the lower opening 20 of the feed tube 16 forms a liquid drip area 22.
  • a pre-settling trough 24 is connected upstream.
  • the Vorabsetzwanne 24 is also cuboid.
  • On one side of the liquid inlet 8 opens into the Vorabsetzwanne 24.
  • On the opposite side of the settling tank 24, an overflow 26 is provided, which opens into the distribution tank.
  • the liquid level 28 in the pre-settling trough 24 is above the liquid level 30 of the distributor trough 2.
  • the overflow 26 comprises a horizontal trough portion 32 and thereafter an obliquely downwardly sloping channel section 33.
  • the two channel sections 32 and 33 extend into the distributor trough 2.
  • a screening device 34 is provided, which extends over the entire width of the distributor trough 2 and over approximately 2/3 of the length of the distributor trough 2. By the sieve 34 may be retained in the liquid to be distributed dirt particles. The liquid to be dispensed drips from the screening device 34 into the distributor trough 2.
  • the liquid level 30 in the distribution trough 2 is higher than the level 36 of the upper opening 18 of the individual feed tubes 16, so that the feed tubes 16 are always flooded.
  • Distributor tray 2 and Vorabsetzwanne 24 are arranged side by side in an integrally formed cuboidal trough 38.
  • the common tray 38 is closed by a cover 40.
  • the cover 40 prevents liquid from splashing out of the distributor trough 2 when excess heated and thus boiling liquid enter the distributor trough 2 and thus is lost.
  • dispensing tube 16 preferably helical sleeves made of stainless steel are used.
  • Fig. 3 shows a perspective view of a second embodiment, which differs from the first embodiment in terms of the design of Vorabsetzwanne 24. Although no delivery tubes are shown in FIG. 3, delivery tubes are nevertheless provided in the second embodiment as well. In Fig. 3, only the holes 14 are shown in the feed tubes 16 are used.
  • the Vorabsetzwanne 24 differs from the Vorabsetzwanne the embodiment of FIG. 1 only in that the liquid inlet 8 opens from above into the Vorabsetzwanne 24 and in that the overflow 26 is configured differently.
  • the overflow 26 includes a separator plate 42 projecting obliquely inwardly and downwardly into the pre-settling sump 24 which, in addition to or in place of the sifting device 34 of the first embodiment, prevents debris from entering the distributor sump and clogging individual dispensing tubes 16.

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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Claims (11)

  1. Distributeur de liquide, en particulier pour l'application uniforme de liquide sur des surfaces d'échange de matière et de chaleur, avec
    un bac de distribution (2) doté d'un fond de bac (4),
    une alimentation de liquide (6), dans laquelle aboutit une arrivée de liquide (8) et au moyen de laquelle le liquide à distribuer peut être introduit dans le bac de distribution (2),
    une pluralité d'évacuations de liquide (10) prévues dans le fond de bac (4) du bac de distribution (2), qui définissent une zone de distribution de liquide (12),
    caractérisé
    en ce que les évacuations de liquide (10) comportent des tubes d'alimentation (16), qui présentent chacun un orifice supérieur (18) et un orifice inférieur (20),
    en ce que les tubes d'alimentation (16) traversent le fond de bac (4) du bac de distribution (2),
    en ce que les tubes d'alimentation (16) pénètrent dans le bac de distribution (4) sur une certaine longueur et en ce qu'ils s'étendent vers le bas en s'éloignant du fond de bac (4),
    en ce que l'orifice inférieur (18) des tubes d'alimentation (16) forme une zone d'égouttement de liquide (22).
  2. Distributeur de liquide selon la revendication 1, caractérisé en ce que le mécanisme d'alimentation de liquide (6) présente un bac de décantation préalable (24) à la première extrémité duquel débouche l'arrivée de liquide (8) et à l'autre extrémité duquel est prévu un déversoir (26), qui aboutit dans le bac de distribution (2).
  3. Distributeur de liquide selon la revendication 2, caractérisé en ce que le bac de décantation préalable (24) est conçu de façon à ce que le niveau de liquide (28) dans le bac de décantation préalable (24) soit supérieur au niveau de liquide (30) dans le bac de distribution (2),
    et en ce qu'un séparateur d'impuretés (34, 42) est prévu dans la zone du déversoir (26).
  4. Distributeur de liquide selon la revendication 3, caractérisé en ce que le séparateur d'impuretés est conçu comme une plaque de séparation (42) s'étendant en biais vers le bas depuis le déversoir (26) dans le liquide du bac de décantation préalable (24).
  5. Distributeur de liquide selon l'une quelconque des revendications 3 à 4, caractérisé en ce qu'un dispositif de tamisage (34) est prévu au-dessus du niveau de liquide (30) dans le bac de distribution (2) et au-dessous du déversoir (26) dans le bac de décantation préalable (34).
  6. Distributeur de liquide selon l'une quelconque des revendications précédentes, caractérisé en ce que les tubes d'alimentation (16) sont dimensionnés de telle façon que le niveau de liquide (30) dans le bac de distribution (2) est supérieur au niveau (36) de l'orifice supérieur (18) des tubes d'alimentation (16).
  7. Distributeur de liquide selon l'une quelconque des revendications précédentes, caractérisé en ce que les tubes d'alimentation (16) présentent des diamètres différents et/ou des longueurs différentes.
  8. Distributeur de liquide selon l'une quelconque des revendications précédentes, caractérisé en ce que le niveau (36) de l'orifice supérieur (18) des tubes d'alimentation (16) est différent.
  9. Distributeur de liquide selon l'une quelconque des revendications précédentes, caractérisé en ce que le nombre de tubes d'alimentation par unité de surface est choisi conformément au profil de distribution de liquide souhaité.
  10. Distributeur de liquide selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif de séparation d'impuretés est prévu au niveau de l'orifice supérieur (18) des tubes d'alimentation (16).
  11. Distributeur de liquide selon l'une quelconque des revendications précédentes, caractérisé en ce que les tubes d'alimentation (16) sont des goupilles spiralées qui sont emboîtées dans des trous (14) dans le fond de bac (4) du bac de distribution (2).
EP05730198A 2004-03-12 2005-03-14 Distributeur de liquide Expired - Lifetime EP1723377B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004012276A DE102004012276A1 (de) 2004-03-12 2004-03-12 Flüssigkeitsverteiler
PCT/EP2005/002714 WO2005088226A2 (fr) 2004-03-12 2005-03-14 Distributeur de liquide

Publications (2)

Publication Number Publication Date
EP1723377A2 EP1723377A2 (fr) 2006-11-22
EP1723377B1 true EP1723377B1 (fr) 2007-08-22

Family

ID=34895328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05730198A Expired - Lifetime EP1723377B1 (fr) 2004-03-12 2005-03-14 Distributeur de liquide

Country Status (5)

Country Link
EP (1) EP1723377B1 (fr)
AT (1) ATE371158T1 (fr)
DE (2) DE102004012276A1 (fr)
ES (1) ES2293562T3 (fr)
WO (1) WO2005088226A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5789386B2 (ja) * 2011-03-10 2015-10-07 株式会社神戸製鋼所 低温液化ガスの気化装置
DE102014105008B4 (de) 2014-04-08 2017-05-18 Technische Universität Berlin Flüssigkeitsverteiler und Anordnung
CN104006569B (zh) * 2014-05-22 2016-11-23 清华大学 一种u形管隔压和孔板布液装置及方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3820353A (en) * 1972-11-09 1974-06-28 Japan Gasoline Evaporative cooling apparatus
CH658198A5 (de) * 1983-01-04 1986-10-31 Sulzer Ag Fluessigkeitsverteiler in einer stoff- und waermeaustauschkolonne.
US4567942A (en) * 1983-03-04 1986-02-04 Chicago Bridge & Iron Company Shell and tube falling film heat exchanger with tubes in concentric rings and liquid distribution box
CH674895A5 (fr) * 1988-03-22 1990-07-31 Kuehni Ag
DD279613A1 (de) * 1989-01-27 1990-06-13 Orgreb Inst Kraftwerke Aufgabevorrichtung fuer fallfilmverdampfer
KR100320169B1 (ko) * 1994-05-13 2002-03-20 구자홍 수평흡수식냉동기의리튬브롬수용액분사장치
DE19703956C2 (de) * 1997-02-03 1998-11-12 Raschig Ag Dispersionseinrichtung für einen Flüssigkeitsverteiler
US6253571B1 (en) * 1997-03-17 2001-07-03 Hitachi, Ltd. Liquid distributor, falling film heat exchanger and absorption refrigeration

Also Published As

Publication number Publication date
DE502005001318D1 (de) 2007-10-04
EP1723377A2 (fr) 2006-11-22
WO2005088226A3 (fr) 2005-10-27
ES2293562T3 (es) 2008-03-16
DE102004012276A1 (de) 2005-09-29
ATE371158T1 (de) 2007-09-15
WO2005088226A2 (fr) 2005-09-22

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