EP0614693A1 - Gicleur d'aération pour aérer des liquides contenant des substances organiques - Google Patents

Gicleur d'aération pour aérer des liquides contenant des substances organiques Download PDF

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Publication number
EP0614693A1
EP0614693A1 EP94102433A EP94102433A EP0614693A1 EP 0614693 A1 EP0614693 A1 EP 0614693A1 EP 94102433 A EP94102433 A EP 94102433A EP 94102433 A EP94102433 A EP 94102433A EP 0614693 A1 EP0614693 A1 EP 0614693A1
Authority
EP
European Patent Office
Prior art keywords
nozzle according
ventilation
outer sleeve
ventilation nozzle
distributor
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
EP94102433A
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German (de)
English (en)
Other versions
EP0614693B1 (fr
Inventor
Simon Redl
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.)
Anton Steinecker Entwicklungs GmbH and Co
Original Assignee
Anton Steinecker Entwicklungs GmbH and Co
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 Anton Steinecker Entwicklungs GmbH and Co filed Critical Anton Steinecker Entwicklungs GmbH and Co
Publication of EP0614693A1 publication Critical patent/EP0614693A1/fr
Application granted granted Critical
Publication of EP0614693B1 publication Critical patent/EP0614693B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/13—Desuperheaters
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/75—Flowing liquid aspirates gas

Definitions

  • the invention relates to a ventilation nozzle for aerating liquids containing organic substances, with a liquid channel, the delimiting side walls of which have angles of inclination in regions with different diameters, with at least one gas inlet opening in a ventilation region in which the liquid channel is delimited by a distributor sleeve, which is defined by an outer sleeve is surrounded.
  • Such a ventilation nozzle is known from WO92 / 04972.
  • the gas flowing through the gas inlet openings is evenly distributed around the liquid flow. Due to the inclined side walls of the liquid channel, the gas is mixed in a laminar manner as the liquid flow continues to move.
  • turbulence still occurs on the one hand during the admixing of the gas; on the other hand, it has been recognized that, in this connection, the amount of gas entry required for aeration cannot be controlled sufficiently.
  • the object of the invention is to provide a ventilation nozzle in which the foam formation in the liquids containing organic substances to be aerated can be kept within limits in a controlled manner.
  • This object is achieved in that the angle of inclination of the side walls delimiting the liquid channel with respect to the longitudinal axis of the ventilation nozzle running in the direction of flow is at no point greater than 30 o , the distributor bushing, the liquid channel of which is formed in a straight line, against distributor bushings which differ in number and / or differentiate the size of the gas inlet openings, is interchangeable.
  • the flow remains almost exclusively laminar.
  • the desired gas entry can be optimally adapted to the different liquids by exchanging the distributor bushings.
  • a well-coordinated combination of the angles of inclination in connection with the gas inlet not only enables the gas to be mixed with the liquid which is not excessively foaming, but because of the good mixing results it is also possible to dispense with the expansion space used in the prior art.
  • This waiver means that the ventilation nozzle can be made much smaller, lighter and therefore less expensive, so that the ratio of useful content to total content is justifiable.
  • the distributor bushing is surrounded over a large part of its length by a closed annular chamber which has at least one gas supply opening is provided. This makes it possible to supply a large number of gas inlet openings arranged in any manner uniformly through the gas supply opening.
  • the gas inlet openings are bores and are distributed uniformly in a ring shape on the circumference of the distributor bushing. With such an arrangement, the gas flows are evenly distributed on the surface of the liquid flow.
  • the gas inlet openings of the distributor bushings are arranged at the beginning of the ventilation area, as seen in the direction of flow. This arrangement enables the mixing of the gas bubbles in the liquid to begin already in the distributor bushing.
  • the cross-section of the duct entry into the ventilation nozzle is very often not identical to the duct cross-section of the ventilation area. For this reason, it would be advantageous if the liquid channel, as seen in the direction of flow, has a conical entrance area from the liquid entry into the ventilation nozzle to the ventilation area. This compensates for the differences and converts them into each other without sales.
  • the liquid channel can preferably have an intermediate area following the ventilation area which merges into a mixing area with a conically tapering wall located at the liquid outlet.
  • this intermediate area ensures that the ventilation area and the mixing area are connected to one another; on the other hand, the tapered wall causes a change in the speed of the liquid in the channel, which results in better mixing of the gas bubbles with the liquid.
  • the liquid channel in the ventilation area and in the mixing area can advantageously be designed as a hollow cylinder, the liquid channel in the ventilation area having an inside diameter "D1" which is larger than the inside diameter "D2" of the liquid channel in the mixing area.
  • Hollow cylinders are best suited for laminar flow.
  • the length of the mixing area corresponds at least to the simple inside diameter “D2” of the liquid channel of the mixing area. It has also been shown that it is advantageous if the length of the intermediate region is at least three times as long compared to the size of the diameter difference from "D1" to "D2".
  • the annular chamber is formed by inserting the distributor bush, which is designed as a one-piece part, into the outer sleeve, the distributor bush forming an inner wall and the outer sleeve forming an outer wall of the annular chamber.
  • the distributor bushing can thus be separated from the outer sleeve at any time without difficulty, which means that the ventilation nozzle can be cleaned easily. If any damage occurs to individual parts, they can be replaced independently of one another.
  • the gas supply opening and the tapered wall can be formed in the outer sleeve.
  • liquid channel in the mixing area is formed by a connecting piece. This simplifies production and shortens the overall length.
  • connection piece and the outer sleeve can be welded together.
  • the connecting piece and the outer sleeve can be formed in one piece.
  • the one-piece is probably Education will be cheaper.
  • welding you can also respond to special requests at short notice.
  • At least one outer diameter of the distributor bushing is designed as a fit with the inner diameter of the outer sleeve.
  • the outer sleeve has a stop surface for an end face of the distributor bush when it is inserted into the outer sleeve, in particular if a seal is arranged between the stop surface of the outer sleeve and the corresponding end face of the distributor bush.
  • the stop surface can thus be used to fix the outer sleeve in the axial direction and at the same time serve for sealing.
  • the distributor bushing can be completely accommodated in the outer sleeve and pressed onto the stop surface with a closure. This prevents the distributor bush from slipping in the outer sleeve.
  • a seal can preferably be arranged between the closure and an end face of the distributor bushing. It is also advantageous to seal the closure, because the ring chamber is also sealed to the outside.
  • the liquid channel in the entrance area is formed in the closure. This makes it possible to simultaneously adjust a suitable entrance area for each cross section of the liquid inlet by changing the closure.
  • the closure can be screwed to a threaded connector with a union nut.
  • This screw connection is very easy to implement, in particular if the threaded connector is arranged outside the outer sleeve at the beginning of the ventilation area and is welded to it.
  • the threaded connector is arranged outside the outer sleeve at the beginning of the ventilation area and is made in one piece with it.
  • a gas supply nozzle is arranged on each outer gas supply opening on the outer sleeve.
  • the gas supply connector is welded to the outer sleeve.
  • the gas supply nozzle is formed in one piece with the outer sleeve.
  • the ventilation nozzle 1 has a liquid channel 2, which, viewed in the direction of flow 38, is divided into four adjoining areas. Starting from the liquid inlet 3, an inlet area 4, a ventilation area 5, an intermediate area 6 and a mixing area 7 are arranged one behind the other. The end of the mixing area 7 forms the liquid outlet 8.
  • the liquid channel 2 is formed in the ventilation area 5 in the form of a hollow cylinder with an inner diameter D1 in a ventilation nozzle 9.
  • a ventilation nozzle 9 In the wall of the ventilation nozzle 9, six bores 10 with a diameter of 1 mm are arranged evenly distributed radially around the circumference.
  • the bore axes 11 of the bores 10 are inclined at an inflow angle “ ⁇ ” relative to the longitudinal axis 13 of the ventilation nozzle 1 running in the direction of flow 38 by 45 ° with respect to the direction of flow 38.
  • the point of penetration of the bores 10 through an inner wall 14 of the distributor bush 9 lies in the front part of the ventilation area 5.
  • the distributor bush 9 has on its outer wall 15 over most of its length a radially circumferential trapezoidal groove 16 which opens outwards.
  • the side flanks 17 and 18 of this groove 16 are each bevelled by 45 ° with respect to the longitudinal axis 13.
  • the distributor bushing 9 is surrounded by an outer sleeve 19.
  • the outer wall 15 of the distributor sleeve 9 forms, together with a hollow cylindrical inner wall 20 of the outer sleeve 19, a closed annular chamber 21. This is sealed against the liquid channel 2 by two seals 22 and 23, which are arranged on the end faces 24 and 25 of the distributor sleeve 9.
  • the outer sleeve 19 has a stop surface 26 for the end face 24 of the distributor bush 9 for inserting it.
  • the seal 22 is arranged between the stop surface 26 and the end face 24.
  • a closure 27 is arranged in the entrance area 4 and has a second stop surface 28 for the end face 25 of the distributor bushing 9.
  • the seal 23 is arranged between the end face 25 and the second stop surface 28 of the closure 27.
  • the closure 27 is screwed to a threaded connector 30 with a union nut 29.
  • a seal 31 is also arranged between the closure 27 and the threaded connector 30.
  • the threaded connector 30 is welded to a circumferential weld seam 32 on the outside of the outer sleeve 19.
  • the liquid channel 2 in the entrance area 4 is formed in the closure 27.
  • its liquid channel 2 When viewed in the direction of flow 38, its liquid channel 2 has a conically opening wall which connects the liquid inlet 3 to the liquid channel 2 of the ventilation area 5.
  • the liquid channel 2 of the intermediate region 6 is formed in the outer sleeve 19.
  • This liquid channel 2 has a tapered wall 12 which connects the liquid channel 2 of the mixing area 7 with that of the Ventilation area 5 connects.
  • the liquid channel 2 of the mixing area 7 is hollow cylindrical with an inside diameter D2, which is smaller than the inside diameter D1, in a connecting piece 33. This is welded on the end face to the outer sleeve 19 with a radially circumferential weld seam 34.
  • the length of the mixing area 7 is just as long as the inner diameter D2 of the liquid channel 2 in the mixing area 7.
  • the length of the intermediate area 6 is five times as long as the size of the diameter difference from D1 to D2.
  • the outer sleeve 19 has two opposite gas supply openings 35 in the ventilation area 5, which allow a gas supply to the annular channel 21.
  • a gas supply connection 36 which is connected to the outer sleeve 19 by means of a radially circumferential weld seam 37.
  • the sum of the cross-sectional areas of the gas supply openings 35 is thirty-three times larger than the sum of the cross-sectional areas formed by the six bores 10.
  • the two outer ends of the ventilation nozzle 1 and the gas supply nozzle 36 are provided with standard connections.
  • the wort is fed to the liquid channel 2 through the liquid inlet 3 with an overpressure between 1.5 and 8 bar, usually with about 2 bar and a volume flow of 0.5 to 200 m3 / hour.
  • an overpressure between 1.5 and 8 bar, usually with about 2 bar and a volume flow of 0.5 to 200 m3 / hour.
  • this intermediate area 6 is at least three times as long as the size of the diameter difference from D1 to D2, this transition takes place very continuously. This means that liquid and gas are mixed together in a laminar manner and turbulence during mixing is avoided.
  • the optimally adapted distributor bushing 9 can be used for each liquid. These differ in the number and / or size of the bores 10 and in the inflow angle “ ⁇ ” of the bore axes 11. In this way not only is foaming of the wort avoided, but an optimal mixing can be set in the ventilation nozzle, so that an expansion space can be dispensed with, which was otherwise used in the prior art.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nozzles (AREA)
  • Physical Water Treatments (AREA)
EP94102433A 1993-02-26 1994-02-17 Gicleur d'aération pour aérer des liquides contenant des substances organiques Expired - Lifetime EP0614693B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9302862U DE9302862U1 (fr) 1993-02-26 1993-02-26
DE9302862U 1993-02-26

Publications (2)

Publication Number Publication Date
EP0614693A1 true EP0614693A1 (fr) 1994-09-14
EP0614693B1 EP0614693B1 (fr) 1997-05-28

Family

ID=6889948

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94102433A Expired - Lifetime EP0614693B1 (fr) 1993-02-26 1994-02-17 Gicleur d'aération pour aérer des liquides contenant des substances organiques

Country Status (8)

Country Link
US (1) US5496505A (fr)
EP (1) EP0614693B1 (fr)
JP (1) JP2649892B2 (fr)
CN (1) CN1101301A (fr)
AT (1) ATE153561T1 (fr)
AU (1) AU667605B2 (fr)
BR (1) BR9400690A (fr)
DE (2) DE9302862U1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3443728B2 (ja) * 1998-02-09 2003-09-08 孝 山本 汚水の浄化処理装置
US6356635B1 (en) * 1999-05-14 2002-03-12 Gn Netcom/Unex Inc. Headband for reversible mounting of headsets
DE10019414C2 (de) * 2000-04-19 2003-06-12 Ballard Power Systems Vorrichtung zum Einleiten von Gas in einen Rohrabschnitt
US6322055B1 (en) 2000-10-02 2001-11-27 Eco-Oxygen Technologies, Llc Gas dissolving apparatus and method
EP1254700A1 (fr) * 2001-05-03 2002-11-06 Sulzer Chemtech AG Anneau à brides intermédiaire pour une jonction de tuyaux pour l'introduction d'additives dans un écoulement de fluide
US6767007B2 (en) 2002-03-25 2004-07-27 Homer C. Luman Direct injection contact apparatus for severe services
US6668556B2 (en) 2002-04-18 2003-12-30 Eco Oxygen Technologies, Llc. Gas transfer energy recovery and effervescence prevention apparatus and method
FR2861605B1 (fr) * 2003-11-05 2005-12-30 Inst Francais Du Petrole Methode de melange et de distribution d'une phase liquide et d'une phase gazeuse
US7320749B2 (en) * 2004-02-09 2008-01-22 Eco-Oxygen Technologies, Llc Method and apparatus for control of a gas or chemical
US7566397B2 (en) * 2004-02-09 2009-07-28 Eco Oxygen Technologies, Llc Superoxygenation of raw wastewater for odor/corrosion control
US8251352B2 (en) * 2010-09-08 2012-08-28 Frank Chiorazzi Venturi apparatus for pouring and aereating beverages
US11780720B2 (en) * 2017-06-28 2023-10-10 Coravin, Inc. Beverage aeration
CN108359580B (zh) * 2018-02-28 2020-04-21 清华大学深圳国际研究生院 一种用于经济微藻培养的微泡光生物反应器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB713064A (en) * 1950-04-14 1954-08-04 Holmes & Co Ltd W C Improvements in method and apparatus for the oxidation of solutions and/or suspensions of oxidisable solids by means of oxygen-containing gases
SU1066824A1 (ru) * 1982-08-23 1984-01-15 Предприятие П/Я В-2877 Смеситель дл приготовлени строительных растворов
GB2143443A (en) * 1983-07-16 1985-02-13 Lechler Gmbh & Co Kg Cylindrical inserts for two-substance spray nozzles and nozzles incorporating such inserts
EP0165228A2 (fr) * 1984-01-30 1985-12-18 Karl Hütter Appareil pour l'aération de média coulants
WO1992004972A1 (fr) * 1990-09-21 1992-04-02 Anton Steinecker Entwicklungs Gmbh & Co. Buse d'aeration de liquides contenant des substances organiques

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US721036A (en) * 1901-11-19 1903-02-17 John Gwynne Apparatus for aerating liquids.
US1747687A (en) * 1925-12-05 1930-02-18 Bleach Process Company Absorption method and apparatus
US3282227A (en) * 1964-06-22 1966-11-01 Nielsen Mfg Co Adjustable venturi injector
US3646607A (en) * 1969-10-24 1972-02-29 Warren Automatic Tool Co Apparatus for controlling fluid flow through a conduit
US4134547A (en) * 1976-12-14 1979-01-16 O. Ditlev-Simonsen, Jr. Jet pipe
DK532278A (da) * 1977-12-02 1979-06-03 Nat Res Dev Apparat til gennemluftning af en vaeske
JPS57131648A (en) * 1981-02-04 1982-08-14 Hitachi Ltd Attracting and separating device for paper sheet
KR840001067B1 (ko) * 1982-10-30 1984-07-30 강진구 무선조종용 모우터 구동회로
BR8503919A (pt) * 1985-08-16 1987-03-24 Liquid Carbonic Ind Sa Ejetor para o processo co2 na neutralizacao de aguas alcalinas
FR2622470B1 (fr) * 1987-11-03 1991-05-10 Elf France Dispositif de dispersion de gaz au sein d'une phase liquide et application de ce dispositif a la realisation de traitements comportant le transfert d'une phase gazeuse dans une phase liquide
US4867918A (en) * 1987-12-30 1989-09-19 Union Carbide Corporation Gas dispersion process and system
US4861352A (en) * 1987-12-30 1989-08-29 Union Carbide Corporation Method of separating a gas and/or particulate matter from a liquid
JPH01194994A (ja) * 1988-01-29 1989-08-04 Ise Kagaku Kogyo Kk オゾン水の製造方法
CA1320598C (fr) * 1989-02-08 1993-07-20 Donald B. Waites Dispositif de barbotage utilise dans la flottation en colonne
DE9111657U1 (fr) * 1991-09-18 1991-11-14 Anton Steinecker Entwicklungs-Gmbh & Co., 8050 Freising, De

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB713064A (en) * 1950-04-14 1954-08-04 Holmes & Co Ltd W C Improvements in method and apparatus for the oxidation of solutions and/or suspensions of oxidisable solids by means of oxygen-containing gases
SU1066824A1 (ru) * 1982-08-23 1984-01-15 Предприятие П/Я В-2877 Смеситель дл приготовлени строительных растворов
GB2143443A (en) * 1983-07-16 1985-02-13 Lechler Gmbh & Co Kg Cylindrical inserts for two-substance spray nozzles and nozzles incorporating such inserts
EP0165228A2 (fr) * 1984-01-30 1985-12-18 Karl Hütter Appareil pour l'aération de média coulants
WO1992004972A1 (fr) * 1990-09-21 1992-04-02 Anton Steinecker Entwicklungs Gmbh & Co. Buse d'aeration de liquides contenant des substances organiques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED Section PQ Week 8437, 24 October 1984 Derwent World Patents Index; Class P64, AN 84-229837 *

Also Published As

Publication number Publication date
DE59402862D1 (de) 1997-07-03
EP0614693B1 (fr) 1997-05-28
AU5525794A (en) 1994-09-01
US5496505A (en) 1996-03-05
JP2649892B2 (ja) 1997-09-03
ATE153561T1 (de) 1997-06-15
JPH06296846A (ja) 1994-10-25
DE9302862U1 (fr) 1993-05-27
BR9400690A (pt) 1994-11-01
CN1101301A (zh) 1995-04-12
AU667605B2 (en) 1996-03-28

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