EP0946305B1 - Dispositif de production d'aerosol - Google Patents

Dispositif de production d'aerosol Download PDF

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Publication number
EP0946305B1
EP0946305B1 EP97953853A EP97953853A EP0946305B1 EP 0946305 B1 EP0946305 B1 EP 0946305B1 EP 97953853 A EP97953853 A EP 97953853A EP 97953853 A EP97953853 A EP 97953853A EP 0946305 B1 EP0946305 B1 EP 0946305B1
Authority
EP
European Patent Office
Prior art keywords
gas jet
impactor
outlet
injector
aerosol
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
EP97953853A
Other languages
German (de)
English (en)
Other versions
EP0946305A1 (fr
Inventor
Jens Hesselbach
Heinz Karle
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.)
SKF Lubrication Systems Germany GmbH
Original Assignee
Willy Vogel 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 Willy Vogel AG filed Critical Willy Vogel AG
Publication of EP0946305A1 publication Critical patent/EP0946305A1/fr
Application granted granted Critical
Publication of EP0946305B1 publication Critical patent/EP0946305B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • 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
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B05B1/265—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being symmetrically deflected about the axis of the nozzle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
    • B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
    • B01F23/2132—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using nozzles
    • 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
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/25—Mixing by jets impinging against collision plates
    • 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
    • B01F25/3141—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit with additional mixing means other than injector mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
    • B05B12/18—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area using fluids, e.g. gas streams
    • 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
    • B05B7/0012—Apparatus for achieving spraying before discharge from the apparatus

Definitions

  • the invention relates to a device for aerosol generation, in particular in a Cooling lubrication device for tools or workpieces, with an injector device, which can be supplied with a carrier gas and a liquid and which are at an outlet emits a gas jet with liquid droplets contained therein, the Gas jet onto a conical or frustoconical impact body with a step structure is directed and flows along this and the impact body one has a tapered shape in the direction facing the gas jet.
  • Aerosols are used in many areas of technology, for example on inhalers in medical technology, humidifiers in household technology Applying cleaning or protective agents, etc. should be pointed out. About that In addition, it is also known to use aerosols for cooling or lubricating a tool or to use a workpiece, which is assumed in the following as an example becomes.
  • the cooling lubricant mist generated in the above-mentioned manner is relatively inhomogeneous with regard to the droplet size.
  • a device according to the preamble of claim 1 is known, with the stable, ultra-fine fog can be generated from a liquid / gas mixture. This is the liquid / gas flow passed along a central packing, at the end a single step is attached. This stage comes with a head start the device together so that a flow is generated with which the ultrafine fog is generated.
  • a spray device is shown through which a spray mist directly aimed at parts of a machine tool or at the tool or the workpiece becomes.
  • a diffuser in the form of a GB 816,992 stepped cylindrical block provided from the outlet of a mixing chamber, in which a cooling liquid and air are mixed together, spaced apart is.
  • the invention has for its object to a device for aerosol generation with which an aerosol with a small particle size can be reliably obtained.
  • This object is achieved in a generic device for Aerosol generation solved in that the impact body is arranged in a pressure vessel and that the step structure on the lateral surface of the impact body is a Has a staircase structure with a large number of successive steps.
  • the lubricating fluid is known Sucked in by means of a vacuum and in a jet of a carrier gas, preferably air, atomized.
  • the carrier gas is placed under pressure in a chamber Injector device initiated, due to the increase in cross section Vacuum sets the lubricant from it also into the chamber promotes mouth and feeds the carrier gas stream at high speed.
  • the lubricant is carried along with the carrier gas flow and strikes finely distributed on the structured surface of the impact body. Because the carrier gas flow at high speed over the structured surface of the impact body Flowing away, it atomizes what is formed on the structured surface Lubricant film in an aerosol of smaller particle size.
  • the size of the particles and the amount of aerosol in the invention Device for aerosol generation are preferably changed in that both the supply of the lubricating liquid and the supply of the carrier gas via Valves can be controlled separately. It can also be done this way the greasiness of the aerosol can vary continuously.
  • the impact body is arranged in front of the outlet of the injector device and is preferably designed as a rotationally symmetrical body with a structured lateral surface. It has proven particularly useful if the impact body has a tapered shape has, preferably conical at its end facing the gas jet tapers. A cone or truncated cone can thus be used as the impact body Find.
  • the tip of the cone or the narrow end of the truncated cone is preferred arranged directly at the outlet of the injector device so that the gas jet on it Place hits the cone or truncated cone.
  • the outlet of the injector device is widened conically in the direction of flow of the gas jet. So can the conical or truncated cone-shaped baffle partially protrude into the outlet, so that between the inner wall of the outlet and the outer wall of the Impact body a flow channel is formed.
  • the distance between the impact body and the Outlet of the injector device for the gas jet is changeable. It can be done also change the dimension of the aforementioned flow channel. It has shown that the particle size can be varied by varying the distance, because this also changes the speed of the gas jet. The higher the speed of the gas jet is adjusted, the finer the particle size of the aerosol generated.
  • the concentration of the aerosol in the gas jet from the Shape of the structured surface, for example the step structure, of the impact body is dependent.
  • the steps each have an acute angle Have tear-off edge, which causes the lubricant droplets in very small size are carried away by the gas flow.
  • the steps below their tear-off edge have an undercut, to get a particularly sharp tear-off edge.
  • the steps on their tear-off edge have a tapered projection, which preferably is directed against the incoming gas jet.
  • the aerosol-containing gas stream after overflowing the impact body preferably filtered one or more times.
  • a sharp deflection of the Gas flow can be viewed as a result of the heavy and therefore larger particles can be separated.
  • the structured Gas stream flowing along the surface from a jacket gas jet in particular is enveloped in air.
  • the jacket gas jet with a known per se Ring nozzle can be generated, accelerates the aerosol and thus supports the Separation of larger particles, while the finest particles block the jacket gas jet can penetrate.
  • a sieve filter and / or a cyclone can also be provided as the filter device his.
  • the latter can also be designed as a buffer for the aerosol to be able to compensate for fluctuations in withdrawal.
  • the generation of the aerosol does not require moving parts, so that high process reliability is guaranteed.
  • the amount of the aerosol produced depends on the amount withdrawn by the consumer. Becomes If a lot of aerosol is removed, the corresponding amount of air flows into the aerosol chamber after, the internal pressure in the chamber remains constant and that at one Pressure reducing valve corresponds to the set operating pressure upstream of the chamber is. The amount of aerosol that can be generated is therefore dependent on the amount of air which is fed into the system.
  • a cooling lubrication device 30 has a container 31, which in in its lower area a supply 32 of liquid cooling lubricant, for example Contains oil.
  • the container 31 is closed by a lid 33 and as Pressure vessel trained.
  • Container 31 is an aerosol that is formed by a stream of compressed air via a line 35, in which a control valve 18 is arranged, and a further one Line 17 is fed to an injector device 16.
  • an adjusting device 37 which is a control valve 37b and a shutdown device 37a for quick shutdown, and a further line 36 is sucked into the injector device 16 from the supply 32 becomes.
  • the volume flow of the Control the oil in the suction line 34 continuously.
  • a connection line 38 is provided in the cover 33 of the container 31 via which can be removed from the container 31 aerosol, for example for Use internal cooling.
  • the promotion of the aerosol through the connecting line 38 can be done by the internal pressure in the container 31. 1 is additional a suction nozzle 39 is provided, via a line, not shown, with compressed air is supplied. The air is introduced into the suction nozzle 39 in the conveying direction, so that the air flow sucks in the aerosol, whereby the oil particles swirl again and be accelerated.
  • the aerosol flow A can - as indicated in Fig. 1 - on several branch lines 27 distributed and in these different machine tools 28 with corresponding Tools 29 are supplied.
  • internal cooling is shown as an example in FIG. 1 is shown, in which the aerosol through channels running in the tool 29 is conveyed through and emerges at the tool tip, alternatively or in addition, the known external cooling can also be used.
  • the device 10 for aerosol generation is shown in detail in FIG. 2. It includes the injector device 16 with an injector block 11, inside of which one Injector chamber 22 is formed.
  • the injector chamber 22 is compressed air G via the Line 35, the control valve 18 and the further line 17 can be fed.
  • At Entry into the injector chamber 22 occurs as a result of the cross-sectional enlargement Negative pressure, as a result oil F via the suction line 34, the adjusting device 37 and the further line 36 is sucked into the injector chamber 22.
  • the injector chamber 22 is flared.
  • a conical baffle 13 is arranged below the outlet 23
  • the lateral surface 13a is a staircase structure with a large number of successive steps 13c.
  • the cone is oriented so that its tip 13b to the outlet 23 of the injector device 16 points and partially into the flared outlet 23 protrudes.
  • the cone-shaped baffle 13 is via holding rods 12 on the lid 33 of the container 31 held.
  • the injector block 11 has one in its upper section Lid 33 of the container 31 penetrating adjusting device 15, by means of which Injector block 11 (as indicated by the double arrow V) at a distance from it Impact body 13 can be changed.
  • the injector block is during the adjustment movement 11 guided on a plurality of guide pins 14 arranged on the impact body 13, which can be moved into corresponding recesses 24 of the injector block 11 intervention.
  • An annular nozzle 21 is arranged over the circumference of the injector block 11 emits downward directed air jet 26, which envelops the gas jet 25.
  • the gas jet 25 formed in the injector chamber 22 with liquid droplets contained therein strikes the stepped surface 13a of the impact body 13, whereupon the liquid droplets initially settle on the step surfaces.
  • the inflowing air of the gas jet 25 then tears at the one shown in FIG. 3 Tear-off edges 13d of the steps 13c with the finest droplets of the oil, so that overall an aerosol with very fine oil particles.
  • the aerosol flow is directed laterally outwards and experiences a strong deflection, which the heavy particles do not can follow, which fall further down into the oil reservoir 32. This is also through favors the outer jacket air jet 26, which entrains the larger particles and in returns the oil supply 32. The fine particles can coat the air jet 26 penetrate and accumulate in the space above the oil reservoir 32.
  • the injector block 11 can be relative to the Baffle 13 are moved. If the between the tip 13b of the impact body 13 and the conical outlet 23 flow channel formed by one another to directed movement of the injector block 11 and the impact body 13 in its cross section is reduced, the flow velocity of the gas jet 25 increases, resulting in an aerosol with smaller particles.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nozzles (AREA)
  • Colloid Chemistry (AREA)
  • Medicinal Preparation (AREA)
  • Lubricants (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Catching Or Destruction (AREA)

Claims (13)

  1. Dispositif de production d'aérosol, en particulier dans un dispositif de lubrification à réfrigération pour des outils ou des pièces à usiner, comprenant un dispositif d'injection (16), auquel peuvent être amenés un gaz porteur et un liquide, et qui délivre à une sortie (23) un jet de gaz (25) contenant des gouttelettes de liquide, où le jet de gaz est dirigé sur un corps de rebondissement en forme de cône ou de cône tronqué (13) à structure à degrés et circule le long de celui-ci et où le corps de rebondissement (13) présente une forme se rétrécissant dans la direction tournée vers le jet de gaz (25), caractérisé en ce que le corps de rebondissement (12) est agencé dans un réservoir sous pression et en ce que la structure à degrés sur la surface de l'enveloppe (13a) du corps de rebondissement (13) présente une structure en escalier avec une pluralité de marches successives (13c).
  2. Dispositif selon la revendication 1, caractérisé en ce que la sortie (23) s'élargit en forme de cône dans la direction de circulation du jet de gaz (25).
  3. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que le corps de rebondissement (13) s'étend en forme de cône à son extrémité tournée vers le jet de gaz (25).
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le corps de rebondissement (13) forme un cône dont la pointe (13b) est orientée vers la sortie (23) du dispositif d'injection (16).
  5. Dispositif selon la revendication 4, caractérisé en ce que la pointe du cône (13c) est agencée directement sur la sortie (23) du dispositif d'injection (16).
  6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le jet de gaz (25) est fortement dévié après le débordement du corps de rebondissement (13).
  7. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la distance entre le corps de rebondissement (13) et la sortie (23) du dispositif d'injection (16) peut être modifiée.
  8. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les degrés (13c) présentent chacune une arête vive.
  9. Dispositif selon la revendication 8, caractérisé en ce que les degrés (13c) possèdent une contre-dépouille (13e) en dessous de leur arête (13d).
  10. Dispositif selon l'une des revendications 8 ou 9, caractérisé en ce que les degrés (13c) présentent une saillie (13f) avançant en pointe sur leur arête (13d).
  11. Dispositif selon la revendication 10, caractérisé en ce que la saillie (13f) est tournée en opposition au sens de circulation du jet de gaz.
  12. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le jet de gaz (25) circulant le long de la surface structurée (13a) est entouré par un jet de gaz d'enveloppe (26).
  13. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le jet de gaz (25) est fortement dévié après le débordement du corps de rebondissement (13).
EP97953853A 1996-12-24 1997-12-18 Dispositif de production d'aerosol Expired - Lifetime EP0946305B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19654321 1996-12-24
DE19654321A DE19654321A1 (de) 1996-12-24 1996-12-24 Vorrichtung zur Aerosolerzeugung
PCT/EP1997/007118 WO1998028085A1 (fr) 1996-12-24 1997-12-18 Dispositif de production d'aerosol

Publications (2)

Publication Number Publication Date
EP0946305A1 EP0946305A1 (fr) 1999-10-06
EP0946305B1 true EP0946305B1 (fr) 2003-04-02

Family

ID=7816180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97953853A Expired - Lifetime EP0946305B1 (fr) 1996-12-24 1997-12-18 Dispositif de production d'aerosol

Country Status (12)

Country Link
EP (1) EP0946305B1 (fr)
JP (1) JP3445282B2 (fr)
KR (1) KR100500084B1 (fr)
CN (1) CN1114506C (fr)
AT (1) ATE235965T1 (fr)
DE (2) DE19654321A1 (fr)
ES (1) ES2195198T3 (fr)
ID (1) ID22862A (fr)
IL (1) IL130496A0 (fr)
NO (1) NO993108L (fr)
TW (1) TW396059B (fr)
WO (2) WO1998028085A1 (fr)

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DE19917219B4 (de) * 1999-04-16 2005-06-16 Unilube Ag Schmiervorrichtung
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JP2001141182A (ja) * 1999-11-18 2001-05-25 Fuoogeru Japan Kk 噴霧給油装置
DE10104012C2 (de) * 2001-01-31 2003-05-28 Vogel Willi Ag Vorrichtung zur Aerosolerzeugung
DE10129243C2 (de) * 2001-06-18 2003-12-04 Fraunhofer Ges Forschung Verfahren und Vorrichtung zur Dosierung fluider Medien
DE10218896A1 (de) 2002-04-26 2003-11-06 Vogel Willi Ag Vorrichtung zur Erzeugung eines Aerosols
DE10345130A1 (de) * 2003-09-26 2005-04-21 Vogel Willi Ag Vorrichtung und Verfahren zur Aerosolschmierung unter Verwendung eines Bypass-Ventils
CN1321767C (zh) * 2004-11-11 2007-06-20 华南理工大学 使润滑物质均匀分布在固体粉末表面的方法及其装置
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AT508319A1 (de) * 2009-05-20 2010-12-15 Mittermayr Alexander Verfahren zur aromabehandlung eines in einer verpackung vorgesehenen lebensmittels
DE102011102539A1 (de) * 2011-05-26 2012-11-29 Linde Aktiengesellschaft Aerosol-Schmiervorrichtung, Schmieranordnung und Schmierverfahren
AT512219B1 (de) * 2011-12-02 2016-06-15 Braincon Handels-Gmbh Zerstäubungsvorrichtung
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DE102013006331A1 (de) * 2013-04-12 2014-10-16 Technotrans Ag Werkstückbeöler und Verfahren zum Beölen von Werkstücken
CN106256447B (zh) * 2015-12-10 2018-09-21 耘创九州智能装备有限公司 字符选择气控装置以及字符选择的气控方法
CN105499047A (zh) * 2016-01-22 2016-04-20 苏州市计量测试研究所 一种新型气溶胶雾化装置
DE102017103047A1 (de) 2016-11-29 2018-05-30 Aixtron Se Aerosolverdampfer
DE102017209068A1 (de) * 2017-05-30 2018-12-06 Bielomatik Leuze Gmbh + Co. Kg Aerosolvorrichtung und Verfahren zum Bereitstellen eines Aerosols
CN110496724B (zh) * 2019-09-29 2021-06-11 业成科技（成都）有限公司 点胶设备及点胶方法
WO2021069080A1 (fr) * 2019-10-11 2021-04-15 Kraussmaffei Technologies Gmbh Dispositif de mélange lubrifié pour matières plastiques de réaction
CN111482294B (zh) * 2020-04-27 2021-07-06 青岛众瑞智能仪器股份有限公司 一种喷雾器及气溶胶颗粒过滤检测装置

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Also Published As

Publication number Publication date
DE19654321A1 (de) 1998-06-25
ATE235965T1 (de) 2003-04-15
CN1114506C (zh) 2003-07-16
ID22862A (id) 1999-12-16
JP2001502970A (ja) 2001-03-06
NO993108L (no) 1999-07-09
CN1241955A (zh) 2000-01-19
KR100500084B1 (ko) 2005-07-12
KR20000062335A (ko) 2000-10-25
NO993108D0 (no) 1999-06-22
TW396059B (en) 2000-07-01
WO1998028085A1 (fr) 1998-07-02
EP0946305A1 (fr) 1999-10-06
IL130496A0 (en) 2000-06-01
WO1998028086A1 (fr) 1998-07-02
JP3445282B2 (ja) 2003-09-08
ES2195198T3 (es) 2003-12-01
DE59709723D1 (de) 2003-05-08

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