EP0121877A2 - Buse de pulvérisation en forme d'un cône creux - Google Patents

Buse de pulvérisation en forme d'un cône creux Download PDF

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Publication number
EP0121877A2
EP0121877A2 EP84103521A EP84103521A EP0121877A2 EP 0121877 A2 EP0121877 A2 EP 0121877A2 EP 84103521 A EP84103521 A EP 84103521A EP 84103521 A EP84103521 A EP 84103521A EP 0121877 A2 EP0121877 A2 EP 0121877A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
mixing chamber
hollow cone
inlet
liquid
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.)
Granted
Application number
EP84103521A
Other languages
German (de)
English (en)
Other versions
EP0121877A3 (en
EP0121877B1 (fr
Inventor
Günter Eipper
Hans Langenfelder
Hans-Jochen Beyse
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to AT84103521T priority Critical patent/ATE38339T1/de
Publication of EP0121877A2 publication Critical patent/EP0121877A2/fr
Publication of EP0121877A3 publication Critical patent/EP0121877A3/de
Application granted granted Critical
Publication of EP0121877B1 publication Critical patent/EP0121877B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3478—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet the liquid flowing at least two different courses before reaching the swirl chamber
    • 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
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3426—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels emerging in the swirl chamber perpendicularly to the outlet axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge

Definitions

  • the invention relates to a hollow cone atomizing nozzle in which the spray cone of the atomized liquid is adjustable.
  • the swirl of the liquid to be atomized which is required for the formation of the spray cone, is generated by built-in parts in the nozzle housing or by eccentric introduction of the liquid into the nozzle housing.
  • the angular momentum of the liquid which is decisive for the swirl, in turn depends on its flow velocity.
  • the spray angle of the nozzle also changes due to the fixed geometry of the internals or the eccentric introduction and the subsequent chamber in the nozzle housing. If, on the other hand, the flow velocity is constant, the spray angle can only be changed by exchanging the swirl-generating internals.
  • Hollow cone atomizing nozzles are e.g. used in the manufacture of dyes for atomizing dye suspensions in atomizing dryers.
  • a certain spray angle of the atomized suspension must be kept constant in a small area. If the angle is too small, the heat content of the dry air is not used optimally, so that in addition to a reduced efficiency of the system, incompletely dried product particles are the result.
  • a spray angle that is too large causes product caking on the dryer wall, which must be removed for safety and quality reasons. For this purpose, the drying process is interrupted again and again.
  • the drying conditions e.g. redefine the inlet and outlet temperatures of the dry air for individual batches.
  • an optimal product flow should be maintained, on the other hand, there is a drop in quality e.g. due to excessive temperature during drying. To achieve this, it is necessary to vary the flow rate to the nozzle.
  • the drying process may have to be interrupted several times in order to replace by Nozzle parts to optimize the spray angle.
  • the hollow cone atomizing nozzle according to the invention is explained in more detail below with reference to exemplary embodiments shown schematically in the drawing.
  • the principle of the construction of the present hollow cone atomizing nozzle is based on the measure of introducing the liquid to be atomized into the nozzle housing in two or more partial flows, of which at least one partial flow is given a swirl which builds up the spray angle of the nozzle and the further partial flow (s) can be fed without twist.
  • the partial flows are superimposed in a mixing chamber of the nozzle, so that for the total flow of the liquid emerging from the nozzle opening there is a swirl which determines the angle of the spray cone and a rotary pulse resulting from the size of the partial flows.
  • the partial flows leading to the nozzle and thus the spray angle can be adjusted.
  • the nozzle housing 1 is provided with an inlet bore 3 opening eccentrically into a swirl chamber 2 and with an inlet bore 6 arranged in an insert 4 coaxial to the nozzle axis 5, which has one or more inlet bores 7 at an angle from 45 ° to the nozzle axis opens into the swirl chamber.
  • a rotationally symmetrical mixing chamber 8 adjoins the swirl chamber, in which the inlet chamber is located Mix holes 3 and 6 introduced partial streams so that the angular momentum of the eccentrically introduced partial stream is distributed over the entire liquid stream to be atomized.
  • the outlet of the mixing chamber is led to the nozzle opening 9.
  • a borehole leading radially or parallel to the nozzle axis with adjoining swirl-producing internals, such as swirl chamber plates or swirl-generating channels, can also be provided.
  • the inlet bore 6 can be replaced by a bore parallel to the nozzle axis 5 (FIG. 5) or else a bore opening radially into the mixing chamber 8 (FIG. 3).
  • the supply lines, not shown in the drawing, for the inlet bores 3 and 6 can be guided via fine control valves, so that the partial flows supplied to the bores and thus the spray angle of the entire liquid flow leaving the nozzle opening 9 can be adjusted without the nozzle having to be changed or internals having to be replaced . This also enables automatic control of the spray angle.
  • a further embodiment of the nozzle according to the invention provides that two inlet bores are guided eccentrically and in the flow direction of the partial streams of the liquid to be atomized to be introduced into the swirl chamber and the downstream mixing chamber opposite to one another.
  • swirl-generating internals can also be provided for the inlet bores.
  • the nozzle according to the invention it is now possible to readjust the spray angle with a variable total volume flow through the nozzle, with fluctuations in the viscosity of the liquid to be atomized or with fluctuations in the solids content of the liquid. Conversely, with a constant volume flow, the spray angle can be changed over a wide range.

Landscapes

  • Nozzles (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Reciprocating Pumps (AREA)
EP84103521A 1983-04-06 1984-03-30 Buse de pulvérisation en forme d'un cône creux Expired EP0121877B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103521T ATE38339T1 (de) 1983-04-06 1984-03-30 Hohlkegelzerstaeubungsduese.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833312301 DE3312301A1 (de) 1983-04-06 1983-04-06 Hohlkegelzerstaeubungsduese
DE3312301 1983-04-06

Publications (3)

Publication Number Publication Date
EP0121877A2 true EP0121877A2 (fr) 1984-10-17
EP0121877A3 EP0121877A3 (en) 1985-11-13
EP0121877B1 EP0121877B1 (fr) 1988-11-02

Family

ID=6195545

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103521A Expired EP0121877B1 (fr) 1983-04-06 1984-03-30 Buse de pulvérisation en forme d'un cône creux

Country Status (5)

Country Link
EP (1) EP0121877B1 (fr)
JP (1) JPS59213462A (fr)
AT (1) ATE38339T1 (fr)
DE (2) DE3312301A1 (fr)
DK (1) DK161947C (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4977190A (en) * 1988-06-10 1990-12-11 Basf Aktiengesellschaft Preparation of riboflavin, produced by a microbial method, in the form of spray-dried granules or microgranules
DE19608349A1 (de) * 1996-03-05 1997-09-11 Abb Research Ltd Druckzerstäuberdüse
WO2006059065A1 (fr) * 2004-12-01 2006-06-08 Incro Limited Agencement de buse comprenant une chambre de tourbillonnement
EP2629016A3 (fr) * 2012-02-16 2017-05-17 Delavan Inc. Injection multipoint à angle variable
EP2962041B1 (fr) * 2013-02-28 2020-05-13 United Technologies Corporation Chambre de combustion de turbine à gaz avec gicleur d'injecteur de carburant à turbulence variable

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5013877A (en) * 1988-02-08 1991-05-07 Raychem Corporation Devices for electrical connection
DE9318544U1 (de) * 1993-12-03 1994-01-27 Rubenberger, Karl, 85435 Erding Wirbelkammerzerstäuber
DE102021133674A1 (de) 2021-12-17 2023-06-22 Technische Universität Dresden Düse mit einstellbarer Strahlgeometrie, Düsenanordnung und Verfahren zum Betrieb einer Düse

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE222120C (fr) *
US2484577A (en) * 1945-03-29 1949-10-11 Monarch Mfg Works Inc Double orifice solid cone spray nozzle
JPS525365B2 (fr) * 1973-01-31 1977-02-12
CH568781A5 (en) * 1973-08-17 1975-11-14 Kurylec Michael Spray nozzle for removing dust from gases esp. smoke - whirl chamber in housing extends into dirt trap
US3908903A (en) * 1974-02-11 1975-09-30 Jr Samuel L Burns Snow making apparatus and method
US3920187A (en) * 1974-05-24 1975-11-18 Porta Test Mfg Spray head
DE2542240C3 (de) * 1975-09-23 1981-07-30 Lechler Gmbh & Co Kg, 7012 Fellbach Hohlkegeldüse zum Zerstäuben von Flüssigkeit
DE2733102A1 (de) * 1977-07-22 1979-02-01 Bayer Ag Verfahren und vorrichtung zum zerstaeuben von fluessigkeiten

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4977190A (en) * 1988-06-10 1990-12-11 Basf Aktiengesellschaft Preparation of riboflavin, produced by a microbial method, in the form of spray-dried granules or microgranules
DE19608349A1 (de) * 1996-03-05 1997-09-11 Abb Research Ltd Druckzerstäuberdüse
EP0794383A3 (fr) * 1996-03-05 1998-04-01 Abb Research Ltd. Buse de pulvérisation par pression
WO2006059065A1 (fr) * 2004-12-01 2006-06-08 Incro Limited Agencement de buse comprenant une chambre de tourbillonnement
CN100544828C (zh) * 2004-12-01 2009-09-30 英克罗有限公司 包含涡流室的喷嘴装置
EP2629016A3 (fr) * 2012-02-16 2017-05-17 Delavan Inc. Injection multipoint à angle variable
US9745936B2 (en) 2012-02-16 2017-08-29 Delavan Inc Variable angle multi-point injection
US10480472B2 (en) 2012-02-16 2019-11-19 Delavan Inc. Variable angle multi-point injection
EP2962041B1 (fr) * 2013-02-28 2020-05-13 United Technologies Corporation Chambre de combustion de turbine à gaz avec gicleur d'injecteur de carburant à turbulence variable
US11326775B2 (en) 2013-02-28 2022-05-10 Raytheon Technologies Corporation Variable swirl fuel nozzle

Also Published As

Publication number Publication date
ATE38339T1 (de) 1988-11-15
DK179584A (da) 1984-10-07
JPH0448502B2 (fr) 1992-08-06
DE3312301A1 (de) 1984-10-11
EP0121877A3 (en) 1985-11-13
DK161947C (da) 1992-02-03
EP0121877B1 (fr) 1988-11-02
DK179584D0 (da) 1984-04-05
DE3474917D1 (en) 1988-12-08
DK161947B (da) 1991-09-02
JPS59213462A (ja) 1984-12-03

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