EP0782476A1 - Verfahren und vorrichtung zur beeinflussung von in einer gasströmung befindlichen flüssigkeitstropfen - Google Patents
Verfahren und vorrichtung zur beeinflussung von in einer gasströmung befindlichen flüssigkeitstropfenInfo
- Publication number
- EP0782476A1 EP0782476A1 EP96922844A EP96922844A EP0782476A1 EP 0782476 A1 EP0782476 A1 EP 0782476A1 EP 96922844 A EP96922844 A EP 96922844A EP 96922844 A EP96922844 A EP 96922844A EP 0782476 A1 EP0782476 A1 EP 0782476A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid drops
- gas stream
- gas
- flow
- gekenn
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/38—Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/28—Plant or installations without electricity supply, e.g. using electrets
Definitions
- the invention relates to a method for influencing liquid drops in a gas flow. Furthermore, the invention relates to a device for performing the method.
- lamella and centrifugal separators are preferably used for droplet separation.
- a change of direction is forced on the gas flow, which the liquid drops do not follow and are thus deposited on a wall and can be removed from the gas flow.
- the separation of liquid drops from a gas phase with a decreasing diameter in particular when the diameter falls below 10 ⁇ m, presents considerable difficulties.
- Attempts have been made to favor a meeting and coagulation of drops by means of a special gas flow guide in order to be able to separate drops of corresponding size more easily. This will be preferred
- Electrostatic filters are used, which, however, cannot be used in the specified temperature ranges.
- the object of the present invention is to provide a method for influencing liquid drops in a gas flow, which is simple and economical to produce, can be used in extremely high temperature ranges and can also be used to influence liquid drops smaller than 10 ⁇ m is. Furthermore, the invention is intended to provide a device for carrying out the method. On the process side, it is proposed for the technical solution to this problem that at least one surface which generates electrical charges due to high temperature is introduced into a flow section.
- the invention uses the effect that an increase in electron mobility occurs in some materials as a result of use in the high temperature range, so that an electrical charge is established. If at least one surface made of such a material is introduced into a flow section so that the gas sweeps over this surface, the pollutant can be extracted if the surface charge is opposite to the pollutant loads.
- Drops in the sense of the present invention are the preferred field of application.
- the invention relates to and is suitable for any type of particle, even if it is in other aggregate or intermediate states depending on the temperature.
- At least two surfaces which point to one another and produce different electrical charges due to the high temperature are introduced in a flow section to build up an electric field.
- the electric field can be used to influence the drops, for example to give the drops a certain direction, to guide them onto a certain surface and the like.
- the at least one surface is advantageously a ceramic.
- the materials used at high temperatures are mostly ceramic materials. These are used either in highly pure form or as mixtures.
- the main components are mostly silicon oxide and aluminum oxide.
- Special refractory properties are achieved by adding further oxides.
- Special properties with regard to resistance to temperature changes and chemical resistance are generated by special processing processes, for example sintering or isostatic pressing.
- ceramic materials can be classified as electrical insulators, the conductivity being dependent both on the composition and on the temperature. However, good insulator properties cannot be found with all ceramics in every temperature range. Thus, for example, zirconium oxide-containing ceramics above a temperature above 600 ° C.
- thermal emission is used to build up a field between at least two surfaces of the type mentioned.
- particles contained in a gas stream can be deflected, collected, neutralized or otherwise influenced.
- the surfaces can be formed on a wall of a flow section, on an additional element or on a component to be arranged anyway in the flow area.
- the method according to the invention uses special material properties under appropriate temperature and flow conditions in order to deflect, collect or otherwise influence drops of the smallest diameter in a gas stream, the measures according to the invention being economical and simple to implement.
- the invention proposes a device that can be inserted or formed in a flow section and comprises at least one surface that generates an electrical charge at high temperature.
- this device has at least one ceramic surface which contains constituents of zirconium oxide.
- the device can be an additional component, a surface formed on a component present in the flow region or a solid one Represent functional element, be formed in the region of a wall of a flow section and the like.
- a special embodiment of the invention provides that plates arranged parallel to one another form a corresponding device. It is proposed that a plurality of plates form flowable alleys.
- the alley width is chosen so that the probability of gas / surface contact is maximized taking into account the gas velocity. Instead of the plates, other shaped elements can also form corresponding flow-through lanes.
- the alley width is related to the speed of the gas and the electric fields. The higher the speed and the narrower the alleys, the lower the electric field can be. Conversely, a low speed with electrically charged particles can also provide good separation when gases flow through between molded elements.
- the invention provides a simply constructed device for influencing liquid drops in a gas flow, even of the smallest diameter, which can be economically realized by simply forming surfaces with materials with corresponding properties. In combination with fluidic effects, very high efficiencies can be achieved.
- ceramics or ceramic-like materials can be used, for example non-oxide ceramics such as carbides, silicides, nitrides or the like.
- non-oxide ceramics such as carbides, silicides, nitrides or the like.
- Figure 1 is a schematic perspective view of an exemplary embodiment of a separator.
- a plate pack is shown schematically, which consists of a plurality of parallel plates, which clear alleys between themselves, the distances are adjustable, for which adjustment bolts and washers can be used. These fastening areas can lie outside the area through which the flow flows or can be clad in a flow-favorable manner with respect to this area.
- the plates 2, 3 can be made of materials that produce different charges when flowing with very hot gases, so that an electric field can be built up. This can significantly promote the separation of liquid drops in the manner described.
- the separator 1 has the plates 2, 3 which can be adjusted in a housing 4 by means of adjusting bolts 5, 6 to form correspondingly narrow streets. In the exemplary embodiment shown, the flow takes place in the direction of arrow 7.
- the plates can also be suspended in flow cross-sections, inserted in grooves or otherwise fastened.
- the plates can be emitted as conductive / insulating plates or with reverse polarity.
Description
Claims
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19522103 | 1995-06-19 | ||
DE19522102 | 1995-06-19 | ||
DE19522104 | 1995-06-19 | ||
DE19522103 | 1995-06-19 | ||
DE19522104 | 1995-06-19 | ||
DE19522102 | 1995-06-19 | ||
PCT/EP1996/002652 WO1997000139A1 (de) | 1995-06-19 | 1996-06-19 | Verfahren und vorrichtung zur beeinflussung von in einer gasströmung befindlichen flüssigkeitstropfen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0782476A1 true EP0782476A1 (de) | 1997-07-09 |
EP0782476B1 EP0782476B1 (de) | 2003-09-24 |
Family
ID=27215202
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96922843A Expired - Lifetime EP0782471B1 (de) | 1995-06-19 | 1996-06-19 | Verfahren zur abscheidung von flüssigkeitstropfen aus einer gasströmung |
EP96922844A Expired - Lifetime EP0782476B1 (de) | 1995-06-19 | 1996-06-19 | Verfahren und vorrichtung zur abtrennung von in einer gasströmung befindlichen flüssigkeitstropfen |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96922843A Expired - Lifetime EP0782471B1 (de) | 1995-06-19 | 1996-06-19 | Verfahren zur abscheidung von flüssigkeitstropfen aus einer gasströmung |
Country Status (8)
Country | Link |
---|---|
US (2) | US6003434A (de) |
EP (2) | EP0782471B1 (de) |
AT (2) | ATE283109T1 (de) |
AU (2) | AU6357796A (de) |
CA (1) | CA2203891C (de) |
DE (2) | DE59610732D1 (de) |
DK (1) | DK0782476T3 (de) |
WO (2) | WO1997000116A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19541803B4 (de) * | 1995-11-09 | 2013-06-27 | Robert Bosch Gmbh | Wärmeübertrager für gasbeheizte Wassererhitzer |
FR2769517B1 (fr) * | 1997-10-13 | 1999-11-12 | Francis Al Dullien | Separateur de type spongieux en mousse reticulee |
FR2821281B1 (fr) * | 2001-02-28 | 2003-04-18 | Inst Francais Du Petrole | Separateur en matiere poreuse comprenant une structure en feutre et appareil comprenant un tel separateur |
CA2456375A1 (en) * | 2004-01-27 | 2005-07-27 | Alberta Research Council, Inc. | Method and apparatus for separating particles from a gas stream |
CN100493667C (zh) * | 2004-05-04 | 2009-06-03 | 蒙特斯欧洲制造有限公司 | 液滴分离器装置 |
WO2005121509A1 (en) * | 2004-06-14 | 2005-12-22 | Gas Turbine Efficiency Ab | System and devices for collecting and treating waste water from engine washing |
US7276106B1 (en) * | 2006-04-18 | 2007-10-02 | Oreck Holdings Llc | Electrode wire retaining member for an electrostatic precipitator |
US7306655B2 (en) * | 2006-04-18 | 2007-12-11 | Oreck Holdings, Llc | Corona ground element |
EP1878506B1 (de) * | 2006-07-13 | 2019-10-16 | Trinc.Org | Vorrichtungen zum Auffangen von treibendem Material |
US8206478B2 (en) | 2010-04-12 | 2012-06-26 | Pratt & Whitney Line Maintenance Services, Inc. | Portable and modular separator/collector device |
CA2925232C (en) | 2013-10-10 | 2020-01-07 | Ecoservices, Llc | Radial passage engine wash manifold |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE547981C (de) * | 1932-04-05 | Ernst Heilmann Dipl Ing | Absetzplatte fuer Schwerkraftabscheider | |
US970053A (en) * | 1909-01-29 | 1910-09-13 | Henry Howard | Method of separating dust from gases. |
US1405613A (en) * | 1921-09-06 | 1922-02-07 | Milliken Humphreys | Apparatus for extracting dust and fume from gases or air in which they are carried in suspension |
US1926924A (en) * | 1928-04-30 | 1933-09-12 | American Air Filter Co | Sinuous air filter and medium |
CH240212A (de) * | 1943-08-05 | 1945-12-15 | Bbc Brown Boveri & Cie | Vorrichtung zum Abscheiden von Flüssigkeitstropfen, welche in einem Gasstrom schweben. |
US2724457A (en) * | 1953-12-22 | 1955-11-22 | Charles S Besser | Electrostatic air filter |
DE1007296B (de) * | 1954-12-10 | 1957-05-02 | Eugen Feifel Dr Ing | Zweizonenfilter mit kontaktelektrischer Aufladung |
DE1137980B (de) * | 1955-04-15 | 1962-10-11 | Ford Werke Ag | Elektrostatische Vorrichtung zum mehrseitigen Farbspritzen auf Werkstuecke |
GB820415A (en) * | 1956-10-11 | 1959-09-23 | Davidson & Co Ltd | Improvements in or relating to the collection of dust from gases by electrostatic precipitation |
FR1369951A (fr) * | 1958-03-28 | 1964-08-21 | Procédés de nettoyage du circuit des gaz des générateurs thermiques par application d'aérosols dits : procédés aux aérosols thermiques | |
DE1249221B (de) * | 1961-05-18 | 1967-09-07 | Aktiengesellschaft Brown, Boveri & Qe., Baden (Schweiz) | Vorrichtung zur Abscheidung von Flüssigkeitstropfen aus einem Gasstrom |
US3405511A (en) * | 1966-05-16 | 1968-10-15 | Burgess Manning Co | Vane type separator |
FR1525097A (fr) * | 1967-01-24 | 1968-05-17 | Ameliorair Sa | Perfectionnements apportés aux installations à séparateurs à chicanes |
CH546594A (de) * | 1969-07-14 | 1974-03-15 | Hungate Ernest Cornell | Vorrichtung zum abscheiden von fluessigkeitspartikeln aus einem gasstrom. |
US3813855A (en) * | 1972-12-08 | 1974-06-04 | Combustion Eng | Separator |
US4035164A (en) * | 1974-11-29 | 1977-07-12 | Minnesota Mining And Manufacturing Company | Methods for removing charged and non-charged particles from a fluid by employing a pyrollectric filter |
JPS5929302B2 (ja) * | 1976-07-05 | 1984-07-19 | メタルゲゼルシヤフト・アクチエンゲゼルシヤフト | 高抵抗ダスト集塵方法 |
FR2395061A1 (fr) * | 1977-06-23 | 1979-01-19 | Hamon | Dispositif pour separer d'un flux de gaz, les gouttes en suspension dans ce flux, notamment pour refrigerant atmospherique |
DE2854931A1 (de) * | 1978-12-20 | 1980-07-10 | Bayer Ag | Vorrichtung zum agglomerieren und abscheiden von feinen nebeltropfen |
US4225323A (en) * | 1979-05-31 | 1980-09-30 | General Electric Company | Ionization effected removal of alkali composition from a hot gas |
US4340616A (en) * | 1980-02-19 | 1982-07-20 | United States Steel Corporation | Method for decreasing the wear on a surface |
SU1072877A1 (ru) * | 1982-12-28 | 1984-02-15 | Руставский Химический Завод | Сепаратор |
DE8701718U1 (de) * | 1987-02-05 | 1987-04-02 | Metzka, Hans-Joachim, 8500 Nuernberg, De | |
US4784674A (en) * | 1987-08-05 | 1988-11-15 | Flakt, Inc. | Mist eliminator module and a method for self-cleaning of the same |
NO173262C (no) * | 1988-06-23 | 1993-11-24 | Shell Int Research | Innretning for separering av v{skedr}per fra en gassstr!m |
SU1605130A1 (ru) * | 1988-12-26 | 1990-11-07 | Ленинградский институт текстильной и легкой промышленности им.С.М.Кирова | Водоуловитель тепломассообменных аппаратов |
DE3936421A1 (de) * | 1989-11-02 | 1991-05-08 | Didier Werke Ag | Einrichtung zur entfernung von russpartikel aus abgasen |
DE4200343C2 (de) * | 1992-01-09 | 1993-11-11 | Metallgesellschaft Ag | Elektrostatischer Abscheider |
DE4214094C1 (de) * | 1992-04-29 | 1993-09-02 | Dieter Prof. Dr.-Ing. 7570 Baden-Baden De Wurz | |
US5302190A (en) * | 1992-06-08 | 1994-04-12 | Trion, Inc. | Electrostatic air cleaner with negative polarity power and method of using same |
-
1995
- 1995-06-19 US US08/793,907 patent/US6003434A/en not_active Expired - Fee Related
-
1996
- 1996-06-19 AU AU63577/96A patent/AU6357796A/en not_active Abandoned
- 1996-06-19 EP EP96922843A patent/EP0782471B1/de not_active Expired - Lifetime
- 1996-06-19 US US08/793,906 patent/US6080225A/en not_active Expired - Fee Related
- 1996-06-19 WO PCT/EP1996/002651 patent/WO1997000116A1/de active IP Right Grant
- 1996-06-19 EP EP96922844A patent/EP0782476B1/de not_active Expired - Lifetime
- 1996-06-19 WO PCT/EP1996/002652 patent/WO1997000139A1/de active IP Right Grant
- 1996-06-19 AT AT96922843T patent/ATE283109T1/de not_active IP Right Cessation
- 1996-06-19 CA CA002203891A patent/CA2203891C/en not_active Expired - Fee Related
- 1996-06-19 DK DK96922844T patent/DK0782476T3/da active
- 1996-06-19 AU AU63576/96A patent/AU6357696A/en not_active Abandoned
- 1996-06-19 DE DE59610732T patent/DE59610732D1/de not_active Expired - Lifetime
- 1996-06-19 DE DE59611148T patent/DE59611148D1/de not_active Expired - Lifetime
- 1996-06-19 AT AT96922844T patent/ATE250461T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9700139A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0782471A1 (de) | 1997-07-09 |
EP0782471B1 (de) | 2004-11-24 |
ATE283109T1 (de) | 2004-12-15 |
DK0782476T3 (da) | 2004-02-09 |
CA2203891C (en) | 2007-09-11 |
US6003434A (en) | 1999-12-21 |
WO1997000116A1 (de) | 1997-01-03 |
EP0782476B1 (de) | 2003-09-24 |
ATE250461T1 (de) | 2003-10-15 |
CA2203891A1 (en) | 1997-01-03 |
AU6357696A (en) | 1997-01-15 |
WO1997000139A1 (de) | 1997-01-03 |
DE59611148D1 (de) | 2004-12-30 |
DE59610732D1 (de) | 2003-10-30 |
US6080225A (en) | 2000-06-27 |
AU6357796A (en) | 1997-01-15 |
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Legal Events
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