EP1522347B1 - Buse de distribution et procédé de mouillage d'une zone prédéterminée au moyen d'une telle buse - Google Patents

Buse de distribution et procédé de mouillage d'une zone prédéterminée au moyen d'une telle buse Download PDF

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Publication number
EP1522347B1
EP1522347B1 EP04405587A EP04405587A EP1522347B1 EP 1522347 B1 EP1522347 B1 EP 1522347B1 EP 04405587 A EP04405587 A EP 04405587A EP 04405587 A EP04405587 A EP 04405587A EP 1522347 B1 EP1522347 B1 EP 1522347B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
spray
central axis
accordance
distribution
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
EP04405587A
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German (de)
English (en)
Other versions
EP1522347A1 (fr
Inventor
Roland Niessen
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.)
Engie Refrigeration GmbH
Original Assignee
Axima Refrigeration 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 Axima Refrigeration GmbH filed Critical Axima Refrigeration GmbH
Priority to SI200430440T priority Critical patent/SI1522347T1/sl
Priority to EP04405587A priority patent/EP1522347B1/fr
Publication of EP1522347A1 publication Critical patent/EP1522347A1/fr
Application granted granted Critical
Publication of EP1522347B1 publication Critical patent/EP1522347B1/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
    • F28F25/06—Spray nozzles or spray pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/18—Roses; Shower heads
    • B05B1/185—Roses; Shower heads characterised by their outlet element; Mounting arrangements therefor

Definitions

  • the invention relates to a distribution nozzle for distributing a fluid and a method for wetting a predeterminable area around the distribution nozzle according to the preamble of the independent claim of the respective category. Furthermore, the invention relates to a cooling tower with such a distribution nozzle, which is operable by a method according to the invention.
  • Distribution nozzles are widely used as atomizing nozzles for atomizing a fluid in cooling devices, in particular in cooling towers.
  • a cooling tower is to be understood as meaning any component of an open or closed cooling circuit which comprises an open or closed housing and has the distribution nozzles in the sense of this application for cooling the fluid.
  • the fluid to be cooled such as the cooling water of a coal, gas or nuclear power plant or a corresponding cooling fluid of another technical device in which dissipates heat dissipated in operation, by one or more Verteildüsen for cooling in a second medium, For example, in air, atomized within the cooling tower, whereby the fluid can deliver a portion of its heat energy to the environment.
  • the fluid does not necessarily have to be water. Any other liquid coolant, such as alcohol, or even a gas to be cooled may be considered as to be distributed or atomized in the distribution nozzle fluid.
  • a distribution nozzle in the form of a spray nozzle which comprises a nozzle and a conical, provided with a plurality of openings diverging member, and a holding device, which holds the diverter at a distance from the nozzle and extends away therefrom.
  • a liquid jet is directed from the nozzle to the conical diverging member, which diverges in the direction of flow of the liquid jet, wherein through the openings, which are arranged in concentric circles about a central axis of the diverging member, a rotationally symmetrical about the central axis field is generated by spray jets.
  • a large cooling tower for example, a cooling tower of a power plant for generating electrical energy, may have several thousand such Verteldüsen, which may be distributed regularly over a floor area of several thousand square meters.
  • the nozzles may be arranged on a rectangular or square grid formed by a system of supply lines and supplying the cooling water to the distribution nozzles. The cooling water is sprayed in the cooling tower, so that the cooling water can deliver a part of its heat energy to the cooling air in the cooling tower.
  • the known from the prior art distribution nozzles such as the spray nozzles of DE 1 947 898 , are thereby preferably arranged in a relatively close distance from each other, so achieved by superposition of besprühbaren by individual spray nozzles surfaces, a more or less complete utilization of the surface to be sprayed in the cooling tower can be. Since the known spray nozzles, as explained above, provide a substantially rotationally symmetric spray pattern, arise either wholly or partially irrigation or poorly irrigated areas that provide either no or only a negligible contribution to the heat and mass transfer.
  • the distributing nozzle according to the invention for distributing a fluid comprises a holding device for fixing a diverting element, and an inlet nozzle with a nozzle mouth for acting on the diverting element with the fluid, wherein the diverting element has a plurality of spray holes for generating spray jets from the fluid.
  • the spray holes are configured and arranged with respect to a central axis of the diverging element such that, in the operating state, an emission angle of the spray jets varies in dependence on a polar angle measured about the central axis according to a predeterminable scheme.
  • the emission angle of the spray jets in the distribution nozzle according to the invention varies with the polar angle about the central axis according to a predeterminable scheme, it is possible to completely uniformly wet surfaces with any delimitation around the distribution nozzle according to the invention with the fluid, for example with cooling water.
  • the inlet nozzle the fluid, for example, the cooling water or other suitable liquid or gaseous cooling fluid, supplied by a supply line at a predetermined supply pressure, so that the fluid leaves the inlet nozzle through the nozzle mouth under a predetermined working pressure and the diverting element for Profdung of spray the fluid is applied.
  • the sprays are through formed the plurality of spray holes of the diverging element, wherein the spray holes are configured and arranged with respect to the central axis of the diverging element, that the spray jets are imparted different radiation angles depending on the polar angle, so that due to the throwing parabolas of the spray jets an area with specifiable geometric boundary is wetted.
  • the spray holes themselves which are arranged around the central axis of the diverting element, can be rounded in a manner known per se, round, elliptical, triangular, rectangular, in the form of an arc segment, or of any other suitable shape.
  • one or more lateral wall boundaries of these openings diverge away from the inlet nozzle with respect to the central axis of the diverging element.
  • the emission angle of the spray jets varies as a function of a distance to the central axis of the diverting element. That is, the spray holes are configured and arranged with respect to the central axis in the diverging element that the emission angle of the spray is both a function of the polar angle, as well as the distance of the spray hole from the central axis.
  • the spray holes are configured and arranged with respect to the central axis of the diverging element such that the spray angle of the spray as a function of the polar angle and the distance from the central axis varies such that a substantially rectangular base around the Distribution nozzle is evenly wetted. That is, the spray holes are arranged and configured so that spray jets are distributed on different, for example, parabolic webs, depending on the polar angle and depending on the distance to the central axis of the diverging element on a substantially rectangular base.
  • the spray holes are arranged in concentric circles with predeterminable radii at a distance around the central axis.
  • the spray holes can also be arranged in other ways, for example on parallel elliptical paths, on rectilinear paths, such as on quadrangular or triangular tracks, or in particular also in any other suitable form in the diverter element.
  • the diverting element itself preferably has a funnel-shaped expanding hollow shape with respect to the central axis and in a direction away from the nozzle mouth.
  • the diverging element may, for example, have a concavely curved cross-section.
  • the diverting element has a substantially triangular cross section and in a further preferred embodiment the diverting element has a convexly curved cross section.
  • the cross section of the diverging element also have any other suitable shape.
  • the method according to the invention for wetting a predeterminable area around a distribution nozzle with a fluid is carried out with a distribution nozzle comprising a holding device for fixing a diverting element and an inlet nozzle with a nozzle mouth for exposing the diverting element to the fluid, wherein the diverting element comprises a multiplicity of Spray holes for generating spray jets from the fluid and the spray holes are configured and arranged with respect to a central axis of the diverging element, that varies in the operating state, an emission angle of the spray in response to a measured about the central axis polar angle according to a predetermined scheme.
  • the emission angle of the spray jets is adjusted so that a substantially rectangular area is wetted uniformly around the distribution nozzle.
  • the invention also relates to a cooling device, in particular a cooling tower, with one of the distributing nozzle described in more detail above, which can be operated by a method according to the invention.
  • Fig. 1 shows a schematic representation of a distribution nozzle according to the invention, which is referred to in the following entirety by the reference numeral 1.
  • the distribution nozzle 1 for distributing a fluid 2 comprises a holding device 3 in which a diverting element 4 and an inlet nozzle 5 with a nozzle mouth 6 are fixed.
  • the nozzle mouth 6 tapers to an outlet opening 61 in the direction of the diverting element 4, wherein the inlet nozzle 5 as shown below Discharge element 4 is placed in the holding device 3 so that the diverting element 4 to the formation of spray jets 8 through the outlet opening 61 with the fluid 2 can be acted upon.
  • the illustration of the lower part of the inlet nozzle 5 has an inlet opening 51 for the fluid 2, so that the inlet nozzle 5 can be supplied via the inlet opening 51 from a supply line 9, which is connected to the distribution nozzle 1, with fluid 2.
  • the fluid 2 in the supply line 9 is preferably under a predeterminable supply pressure, so that the fluid 2 leaves the inlet nozzle 5 through the nozzle mouth 6 at a predeterminable working pressure and thus applies the fluid 2 to the diverting element 4 for forming spray jets 8.
  • the fluid 2 in the supply line 9 is preferably under a predeterminable supply pressure, so that the fluid 2 leaves the inlet nozzle 5 through the nozzle mouth 6 at a predeterminable working pressure and thus applies the fluid 2 to the diverting element 4 for forming spray jets 8.
  • the diverting element 4 has a funnel-shaped, in a funnel shape with respect to the center axis M, in a direction widening away from the nozzle mouth 6 and having a concavely curved cross-section.
  • the diverting element 4 To form the spray jets 8 and to form their emission angle ⁇ , the diverting element 4 a plurality of spray holes 7, which preferably, but not necessary, as shown schematically in Fig. 1, on concentric circles of radius R at a distance A from the central axis M are arranged.
  • the spray holes 7 are designed as a substantially cylindrical openings with a circular cross section, wherein a central axis 71 of the bore 7 so in relation to a perpendicular to the central axis M imaginary plane is inclined at the Abstrahlkwinkel ⁇ that the corresponding spray jet 8 formed by the spray hole 7 leaves the spray hole 7 substantially at the same emission angle ⁇ .
  • the angle ⁇ depends not only on the distance A of the spray hole 7 to the central axis M, but also from the polar angle ⁇ , under which the spray hole 7 is arranged with respect to the central axis M.
  • Fig. 2 is a section along the line II - II according to FIG. 1 is shown schematically.
  • the spray holes 7 are arranged in concentric circles with radius R at a distance A about the central axis M.
  • the respective central axes 71, 72 of different spray bores 7 are inclined relative to a plane perpendicular to the central axis M at the angle of emission ⁇ such that the corresponding spray jet 8 formed by the spray hole 8 leaves the spray hole 7 substantially at the same emission angle ⁇ .
  • the emission angle ⁇ of the spray jets 8 varies both as a function of the distance A to the central axis M, as well as in dependence on the polar angle ⁇ , under which the spray hole 7 is arranged with respect to the central axis M.
  • the spray holes 7 are arranged so that a substantially square area 10 with fluid 2 is uniformly wetted by the distribution nozzle 1.
  • two spray jets 81 and 82 are shown by way of example, emanating from two different spray holes 7 with different central axes 71 and 72.
  • the two different ones Holes 7 with the respective center axes 71 and 72 are arranged at the same distance A under the same radius R, but at two different polar angles ⁇ 1 and ⁇ 2 with respect to the central axis M of the diverging element 4.
  • the spray jet 81 has an emission angle ⁇ 1 and the spray jet 82 an emission angle ⁇ 2 , wherein in the present example the emission angle ⁇ 1 has a smaller value than the emission angle ⁇ 2 , since the spray jet 81 runs in the direction of a diagonal of the square-defined area 10 to be wetted, and thus has to bridge a greater distance than the spray jet 72, which therefore leaves the associated spray hole 7 at a larger radiation angle ⁇ 2 .
  • the distribution nozzle according to the invention By using the distribution nozzle according to the invention, it is possible to completely uniformly irrigate areas and areas with any boundary, in particular rectangular or square areas, without irrigated or insufficiently irrigated area remaining or irrigating certain areas of two or more different distribution nozzles simultaneously and overlapping.
  • the known disadvantages that arise in the known from the prior art distribution nozzles with rotationally symmetrical spray pattern completely overcome.
  • a substantial improvement of the cooling is achieved in comparison to the known distribution nozzles, so that the cooling process can be much more efficient and energy-economical and therefore more cost-effective.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Continuous Casting (AREA)
  • Inorganic Insulating Materials (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (10)

  1. Buse de distribution pour la distribution d'un fluide (2), comprenant une installation de retenue (3) pour la fixation d'un élément de pulvérisation (4) ainsi qu'une buse d'entrée (5) avec un orifice de buse (6) pour charger l'élément de diffusion (4) en fluide (2), où l'élément de diffusion (4) présente une multitude de perçages de projection (7) pour produire des jets de projection (8) à partir du fluide (2), caractérisée en ce que les perçages de projection (7) sont configurés de telle sorte et sont disposés par rapport à un axe médian (M) de l'élément de diffusion (4) de façon qu'à l'état de fonctionnement, un angle de rayonnement (α) des jets de projection (8) varie en fonction d'un angle polaire φ mesuré autour de l'axe médian (M) selon un schéma pouvant être prédéterminé.
  2. Buse de distribution selon la revendication 1, où l'angle de rayonnement (α) des jets de projection (8) varie en fonction d'un écart (A) à l'axe médian (M).
  3. Buse de distribution selon la revendication 1 ou 2, où les perçages de projection (7) sont configurés et disposés de telle sorte par rapport à l'axe médian (M) de l'élément de diffusion (4) que l'angle de rayonnement (α) des jets de projection (8) varie en fonction de l'angle polaire (φ) et de l'écart (A) de l'axe médian (M) de telle sorte qu'une face de base sensiblement rectangulaire (9) autour de la buse de distribution puisse être mouillée uniformément.
  4. Buse de distribution selon l'une des revendications précédentes, où les perçages de projection (7) sont disposés dans des cercles concentriques (K) avec des rayons prédéterminés (R) à un écart (A) autour de l'axe médian (M).
  5. Buse de distribution selon l'une des revendications précédentes, où l'élément de diffusion (4) présente une forme creuse s'élargissant en forme d'entonnoir par rapport à l'axe médian (M) et dans une direction éloignée de l'orifice de buse (6).
  6. Buse de distribution selon l'une des revendications précédentes, où l'élément de diffusion (4) présente une section transversale courbée concave.
  7. Buse de distribution selon l'une des revendications précédentes, où l'élément de diffusion (4) présente une section transversale sensiblement triangulaire.
  8. Buse de distribution selon l'une des revendications précédentes, où l'élément de diffusion (4) présente une section transversale courbée convexe.
  9. Procédé de mouillage d'une zone prédéterminée (10) autour d'une buse de distribution (1) avec un fluide (2), ladite buse de distribution (1) présentant une installation de retenue (3) pour la fixation d'un élément de diffusion (4) ainsi qu'une buse d'entrée (4) avec un orifice de buse (6) pour charger l'élément de diffusion (4) en fluide (2), où l'élément de diffusion (4) présente une multitude de perçages de projection (7) pour produire des jets de projection (8) à partir du fluide (2), et les perçages de projection (7) sont configurés et disposés de façon par rapport à un axe médian (M) de l'élément de diffusion (4) qu'à l'état de fonctionnement, un angle de rayonnement (α) des jets de projection (8) varie en fonction d'un angle polaire mesuré autour de l'axe médian (M) selon un schéma prédéterminé (φ), caractérisé en ce que l'angle de rayonnement α des jets de projection (8) est réglé de telle sorte qu'une zone sensiblement rectangulaire (10) autour de la buse de distribution (1) soit mouillée uniformément.
  10. Dispositif de refroidissement, en particulier tour de refroidissement, avec une buse de distribution (1) selon l'une des revendications 1 à 8, qui peut être amenée à fonctionner conformément à un procédé selon la revendication 9.
EP04405587A 2003-10-08 2004-09-17 Buse de distribution et procédé de mouillage d'une zone prédéterminée au moyen d'une telle buse Expired - Lifetime EP1522347B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200430440T SI1522347T1 (sl) 2003-10-08 2004-09-17 Distribucijska šoba in postopek za omočitev predhodno določenega področja s takšno distribucijsko šobo
EP04405587A EP1522347B1 (fr) 2003-10-08 2004-09-17 Buse de distribution et procédé de mouillage d'une zone prédéterminée au moyen d'une telle buse

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03405723 2003-10-08
EP03405723A EP1522346A1 (fr) 2003-10-08 2003-10-08 Buse de distribution et procédé de mouillage d'une zone prédéterminée au moyen d'une telle buse
EP04405587A EP1522347B1 (fr) 2003-10-08 2004-09-17 Buse de distribution et procédé de mouillage d'une zone prédéterminée au moyen d'une telle buse

Publications (2)

Publication Number Publication Date
EP1522347A1 EP1522347A1 (fr) 2005-04-13
EP1522347B1 true EP1522347B1 (fr) 2007-07-11

Family

ID=34307065

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03405723A Withdrawn EP1522346A1 (fr) 2003-10-08 2003-10-08 Buse de distribution et procédé de mouillage d'une zone prédéterminée au moyen d'une telle buse
EP04405587A Expired - Lifetime EP1522347B1 (fr) 2003-10-08 2004-09-17 Buse de distribution et procédé de mouillage d'une zone prédéterminée au moyen d'une telle buse

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP03405723A Withdrawn EP1522346A1 (fr) 2003-10-08 2003-10-08 Buse de distribution et procédé de mouillage d'une zone prédéterminée au moyen d'une telle buse

Country Status (5)

Country Link
EP (2) EP1522346A1 (fr)
AT (1) ATE366622T1 (fr)
DE (1) DE502004004279D1 (fr)
ES (1) ES2289469T3 (fr)
SI (1) SI1522347T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011114382A1 (de) * 2011-09-23 2013-03-28 Dürr Systems GmbH Beschichtungsverfahren und Beschichtungseinrichtung mit einer Kompensation von Unsymmetrien des Sprühstrahls

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2469873T3 (es) * 2010-05-28 2014-06-20 Aptar France Sas Cuerpo de boquilla para un dispositivo de pulverización de gotitas líquidas ultrasónico
CN102109296A (zh) * 2010-12-31 2011-06-29 山东西王药业有限公司 凉水塔用喷头

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1539331A (en) * 1923-03-12 1925-05-26 Henry M Siemann Lawn sprinkler
DE408676C (de) * 1923-06-19 1925-01-26 Karl Ludwig Lanninger Kalottenfoermiger Wasserverteiler zum Beregnen von Vierecksflaechen
US1717887A (en) * 1927-06-01 1929-06-18 Walter G Noack Sprinkler
FR1376493A (fr) * 1963-01-31 1964-10-31 Dispositif perfectionné pour l'arrosage par aspersion de surfaces de formes géométriques variées
US3533560A (en) * 1968-02-12 1970-10-13 Munters & Co Carl Cooling tower spray nozzle
US5143657A (en) * 1991-06-13 1992-09-01 Curtis Harold D Fluid distributor
US5180103A (en) * 1991-07-31 1993-01-19 Amsted Industries Incorporated Spray nozzle fluid distribution system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011114382A1 (de) * 2011-09-23 2013-03-28 Dürr Systems GmbH Beschichtungsverfahren und Beschichtungseinrichtung mit einer Kompensation von Unsymmetrien des Sprühstrahls

Also Published As

Publication number Publication date
DE502004004279D1 (de) 2007-08-23
EP1522347A1 (fr) 2005-04-13
ATE366622T1 (de) 2007-08-15
SI1522347T1 (sl) 2007-12-31
EP1522346A1 (fr) 2005-04-13
ES2289469T3 (es) 2008-02-01

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