EP1273353A2 - Zerstäuber - Google Patents
Zerstäuber Download PDFInfo
- Publication number
- EP1273353A2 EP1273353A2 EP02011239A EP02011239A EP1273353A2 EP 1273353 A2 EP1273353 A2 EP 1273353A2 EP 02011239 A EP02011239 A EP 02011239A EP 02011239 A EP02011239 A EP 02011239A EP 1273353 A2 EP1273353 A2 EP 1273353A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- atomizer
- liquid
- heater
- inner tube
- atomized
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/32—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by electrostatic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/03—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
- F23D11/101—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet
-
- 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
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
- B05B7/0475—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber with means for deflecting the peripheral gas flow towards the central liquid flow
Definitions
- the invention relates to an atomizer for atomizing a Liquid, especially for atomizing a liquid Fuel in a burner of a heater.
- heaters used in motor vehicles e.g. as auxiliary heater or as auxiliary heating
- small burner capacities can be realized for example, should be less than 5 kW.
- heaters should be as light as possible and be compact, as well as a low electrical Have power consumption.
- electrostatic atomization is the liquid fuel before it comes out of a mouth Nozzle emerges, electrostatically charged. After the exit form from the mouth due to the electrostatic Repulsive forces the desired droplets.
- the disadvantage is here that the droplets with respect to the exit direction, with which the liquid fuel emerges from the mouth, a relatively high rate of propagation in radial Have direction, with the result that a low pollutant Combustion process is difficult to reach.
- the atomizer according to the invention with the features of Claim 1 has the advantage that a axially directed flow of an atomized liquid can be generated without a compressor is required.
- Atomizer according to the invention when used in a Heater for very low burner outputs, e.g. of 5 kW up to 1 kW an axially aligned flow of an atomized Fuel are generated, which also makes these small Burner performance low-pollutant combustion is feasible.
- the The atomizer according to the invention also in the low power can still be operated fully modulating.
- the inner tube then emerges to become electrostatic Atomization of the liquid inside an outer tube, that is pressurized with a gas.
- This gas can then Take the atomized liquid with you or take it away and out of the Exit the outer tube.
- the Mouth of the outer tube can be the desired axial aligned flow for the atomized liquid can be achieved.
- the present invention is based on the general Thoughts of electrostatic sputtering to superimpose gas-assisted atomization, the actual atomization takes place electrostatically while the Formation of an aligned flow through the Overlay with an already aligned gas flow takes place, which takes the atomized liquid.
- this connection has shown that even low gas pressures are sufficient to generate the desired flow, so that on one powerful compressor can be dispensed with.
- a conventional air-based Atomization is a relatively powerful compressor required to achieve the high level required for atomization To be able to provide air pressure.
- the inner tube and / or outer tube and / or can expediently Electrode parallel to one another, in particular coaxially be arranged, which is a particularly high quality Achieve axial flow for the atomized liquid leaves.
- a rod-shaped design is also advantageous Electrode to a relatively large contact zone to achieve electrical charging of the liquid.
- the problem underlying the invention is also solved by solved a heater with the features of claim 10, whose burner with an atomizer according to the invention Is provided.
- the gas that is in the The atomizer takes the atomized liquid with it Combustion air formed in a combustion chamber of the The heater burns with the fuel carried.
- an additional fresh air supply can be used or a separate gas supply to the atomizer is not required.
- the heater can Fresh air blower to supply the combustion chamber with Have fresh air, then the outer tube of the Atomizer on the input side to the pressure side of this Fresh air blower is connected.
- Fresh air blowers can be used to apply fresh air to the Atomizer according to the invention are used so that a additional compressor or the like can be omitted.
- FIG. 1 shows a halved longitudinal section through an atomizer according to the invention.
- the 1 has an atomizer according to the invention 1 a cylindrical inner tube 2, which with a liquid 3rd can be acted on, which in Fig. 1 by an arrow is symbolized.
- the inner tube 2 has an aperture trained mouth 4, the outlet cross-section smaller is the inner cross section of the inner tube 2.
- the atomizer 1 has a cylindrical one Outer tube 5, which envelops the inner tube 2, the two tubes 2 and 5 preferably coaxially with each other are arranged. Radially between outer tube 5 and inner tube 2 an annular space 6 is formed which is in contact with a gas 7 can be acted upon, which symbolizes here by an arrow is.
- the outer tube 5 has an aperture-shaped mouth 8 on, aligned here to the mouth 4 of the inner tube 2 is arranged.
- the outlet cross section of the outer pipe mouth 8 is also smaller than the cross section in Inside of the outer tube 5. Furthermore, the Exit cross section of the outer tube mouth 8 larger than that Outlet cross section of the inner tube mouth 4.
- the two tubes 2 and 5 are arranged and so formed that a mouth region 9 of the outer tube 5th overlaps a mouth region 10 of the inner tube 2, that between the mouth areas 9 and 10 Atomization chamber 11 is formed, which is connected to the annular chamber 6 communicated.
- the atomizer 1 according to the invention corresponds to one conventional atomizing nozzle, as in a known airborne atomization can be used.
- the atomizer 1 is now also included a rod-shaped electrode 12, the inside of the inner tube 2 is arranged and for electrostatic Charges the liquid 3 to be atomized.
- the Electrode 12 is expediently coaxial with the inner tube 2 or Outer tube 5 is arranged and extends inside the Inner tube 2 preferably up to the vicinity of the inner tube mouth 4th
- the atomizer 1 works as follows:
- the liquid to be atomized 3, preferably a liquid fuel, is supplied to the inner tube 2, in which the liquid by means of the electrode 12 electrostatically is charged. At the outlet of the inner pipe mouth 4 comes it due to the electrostatic charge initiated drop disintegration to the desired atomization. This atomization takes place at least partially in the Atomization room 11 instead.
- the supplied to the annulus 6 Gas flow, especially air flow, mixes in the Area of the atomization chamber 11 with the atomized Liquid, takes or entrains it, causing the desired axially oriented flow of the atomized Liquid is achieved.
- a relative is enough low overpressure, which is due to the electrostatic charge droplets spreading axially in redirect in the axial direction to the desired spray pattern to create.
- the atomizing effect of the electrostatic charge to improve the liquid or liquid fuel, can preheated the liquid upstream of the atomizer 1 will be provided for which appropriate preheating means can.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
- Wick-Type Burners And Burners With Porous Materials (AREA)
Abstract
Description
Claims (13)
- Zerstäuber zum Zerstäuben einer Flüssigkeit (3), insbesondere zum Zerstäuben eines flüssigen Brennstoffes bei einem Brenner eines Heizgerätes, mit einem Innenrohr (2), das mit der zu zerstäubenden Flüssigkeit (3) beaufschlagbar ist, und mit einem Außenrohr (5), welches das Innenrohr (2) unter Ausbildung eines Ringraums (6) umschließt, das mit einem Gas (7) beaufschlagbar ist und dessen Mündungsbereich (9) einen Mündungsbereich (10) des Innenrohrs (2) unter Ausbildung eines mit dem Ringraum (6) kommunizierenden Zerstäubungsraums (11) überlappt, wobei im Innenrohr (2) eine Elektrode (12) zur elektrostatischen Aufladung der zu zerstäubenden Flüssigkeit (3) angeordnet ist.
- Zerstäuber nach Anspruch 1,
dadurch gekennzeichnet, daß Innenrohr (2) und/oder Außenrohr (5) und/oder Elektrode (12) achsparallel zueinander angeordnet sind. - Zerstäuber nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß Innenrohr (2) und/oder Außenrohr (5) und/oder Elektrode (12) koaxial zueinander angeordnet sind. - Zerstäuber nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß die Elektrode (12) stabförmig ausgebildet ist. - Zerstäuber nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß die Elektrode (12) im Inneren des Innenrohres (2) vor dessen Mündung (4) endet. - Zerstäuber nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß eine Mündung (4) des Innenrohrs (2) blendenförmig ausgebildet ist. - Zerstäuber nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß eine Mündung (8) des Außenrohrs (5) blendenförmig ausgebildet ist. - Zerstäuber nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß ein Austrittsquerschnitt des Außenrohrs (5) größer ist als ein Austrittsquerschnitt des Innenrohrs (2). - Zerstäuber nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, daß eine Mündung (8) des Außenrohrs (5) koaxial fluchtend zu einer Mündung (4) des Innenrohrs (2) angeordnet ist. - Heizgerät, insbesondere als Zusatzheizer oder Standheizung eines Kraftfahrzeugs betriebenes Heizgerät, mit einem Brenner, der einen Zerstäuber (1) nach einem der Ansprüche 1 bis 9 aufweist,
dadurch gekennzeichnet, daß die dem Innenrohr (2) zugeführte Flüssigkeit durch einen flüssigen Brennstoff (3) gebildet ist und daß das dem Außenrohr (5) zugeführte Gas durch Frischluft (7) gebildet ist, mit welcher der zerstäubte Brennstoff in einer Brennkammer des Heizgeräts verbrennt. - Heizgerät nach Anspruch 10,
dadurch gekennzeichnet, daß ein Frischluftgebläse zur Versorgung des Brennraums mit Frischluft vorgesehen ist, wobei das Außenrohr (5) des Zerstäubers (1) eingangsseitig an die Druckseite des Frischluftgebläses angeschlossen ist. - Verwendung eines Zerstäubers (1) nach einem der Ansprüche 1 bis 9 in einem mit flüssigem Brennstoff gespeisten Brenner eines Heizgeräts, insbesondere eines als Zusatzheizer oder Standheizung eines Kraftfahrzeugs betriebenen Heizgeräts, wobei der Zerstäuber (1) zum zerstäuben des flüssigen Brennstoffs (3) dient, wobei Frischluft (7) zur Beaufschlagung des Außenrohrs (5) des Zerstäubers (1) dient.
- Verfahren zum Erzeugen einer axial ausgerichteten Strömung einer zerstäubten Flüssigkeit, bei dem die zu zerstäubende Flüssigkeit (3) zunächst elektrostatisch zerstäubt wird und bei dem der zerstäubten Flüssigkeit eine axial ausgerichtete Gasströmung überlagert wird, welche die zerstäubte Flüssigkeit mitnimmt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10132195 | 2001-07-03 | ||
DE2001132195 DE10132195A1 (de) | 2001-07-03 | 2001-07-03 | Zerstäuber |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1273353A2 true EP1273353A2 (de) | 2003-01-08 |
EP1273353A3 EP1273353A3 (de) | 2006-01-25 |
Family
ID=7690440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02011239A Withdrawn EP1273353A3 (de) | 2001-07-03 | 2002-05-22 | Zerstäuber |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1273353A3 (de) |
DE (1) | DE10132195A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106090943A (zh) * | 2016-08-03 | 2016-11-09 | 王海升 | 一种处置工业危险废液的雾化燃烧器 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10327697A1 (de) | 2003-06-20 | 2005-01-05 | Robert Bosch Gmbh | Brenner für flüssige Brennstoffe |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3841824A (en) * | 1972-09-25 | 1974-10-15 | G Bethel | Combustion apparatus and process |
JPS5665627A (en) * | 1979-11-05 | 1981-06-03 | Agency Of Ind Science & Technol | Method of combining particles of liquid, etc. |
US4472134A (en) * | 1980-02-15 | 1984-09-18 | Electro Vapor Energy Corp. | Vaporizing fuel oil burner |
JPS6057907B2 (ja) * | 1981-06-18 | 1985-12-17 | 工業技術院長 | 液体の混合噴霧化方法 |
US5765761A (en) * | 1995-07-26 | 1998-06-16 | Universtiy Of Georgia Research Foundation, Inc. | Electrostatic-induction spray-charging nozzle system |
-
2001
- 2001-07-03 DE DE2001132195 patent/DE10132195A1/de not_active Ceased
-
2002
- 2002-05-22 EP EP02011239A patent/EP1273353A3/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
None |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106090943A (zh) * | 2016-08-03 | 2016-11-09 | 王海升 | 一种处置工业危险废液的雾化燃烧器 |
Also Published As
Publication number | Publication date |
---|---|
DE10132195A1 (de) | 2003-01-30 |
EP1273353A3 (de) | 2006-01-25 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: F23D 11/10 19680901ALI20051207BHEP Ipc: B05B 5/03 19900101ALI20051207BHEP Ipc: B05B 7/04 19680901AFI20021029BHEP |
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