EP0782471B1 - Process for separating liquid drops from a gas stream - Google Patents
Process for separating liquid drops from a gas stream Download PDFInfo
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- EP0782471B1 EP0782471B1 EP96922843A EP96922843A EP0782471B1 EP 0782471 B1 EP0782471 B1 EP 0782471B1 EP 96922843 A EP96922843 A EP 96922843A EP 96922843 A EP96922843 A EP 96922843A EP 0782471 B1 EP0782471 B1 EP 0782471B1
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- Prior art keywords
- gas stream
- liquid drops
- gas
- process according
- flow
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- 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 separating liquid drops Diameters less than 10 ⁇ m from a very hot gas flow. It is known that a separation of liquid droplets from a gas phase with decreasing diameter, especially when falling below Diameters from 10 ⁇ m, considerable difficulties. In different industrial areas, however, is the separation of such small droplets wanted and required.
- DE 42 14 094 C1 describes a droplet separator for separating droplets known from a liquid-flow gas flow. It's about a wavy profile with a flow line that resembles a sine wave.
- the known device is suitable for large diameter drops and is based on the principle of direct wall flow due to the droplet inertia.
- a droplet separator based on the same principle is known from DE 78 15 425 U1 known. In this document it is proposed to reduce the Size of the separable drops with the sinusoidal passages Cross-bracing plates and corrugated plates at the edges, so that the plates can be made as thin as possible and thus shaped well.
- the present invention has for its object to provide a method for separating liquid drops with diameters smaller than 10 microns from a very hot gas flow, which is suitable for the deposition regardless of the temperature range with simple means.
- the technical solution to this problem is proposed a method for separating liquid drops with diameters smaller than 10 ⁇ m from a very hot gas flow, the gas being guided in its flow path through alleys formed by parallel plates, which are chosen so closely that considerable Whirls in the flow path result, the plates having a surface made of a ceramic with oxides from the group of subgroup elements, which forms a charge-generating surface at high temperature.
- the solution according to the invention takes advantage of the effect that flowing gases in a pipe one depending on the distance from the wall Have flow rate.
- the gas molecules in immediate The speed near the wall is slowed down considerably, almost to 0, while increasing with distance from the wall Set speeds. If the alleys are narrow enough, the result is considerable turbulence in the flow path. As for discussion standing liquid drops follow the gas flow almost without inertia, they will statistically reach a wall and are reflected there.
- bodies can be combined to form alleys become.
- the alley width is chosen so narrow that under Taking into account the speed of the gas the probability of one Gas / surface contact is maximized.
- the alley width is variably adjustable.
- the alley width over the Flow path may be different.
- Drops in the sense of the present invention are preferred Field of use.
- the invention relates and is suitable for any type of Particles, even if they change depending on the temperature in others Aggregate or intermediate states.
- a preferred proposal of the invention provides that one near the wall occurring laminar underlayer by appropriate design of the Surface can be taken into account.
- the liability of the droplets on the Wall is influenced by molecular interaction, one speaks of Wetting.
- suitable choice of material for the surface of the flowed around the body or the plates on the liability significantly influenced become. Coalescing to a liquid film also favors through Reducing the surface tension of a deposit.
- the Surface design should be chosen from the point of view of liability.
- Liability-relevant aspects in the sense of the present invention are Question of the wettability or non-wettability of a surface on the one hand and on the other hand, the guidance of liquid collected on the surface.
- a Surface can for example be designed so that the drops converge and no longer tear-off, large-area, well manageable units form, or the surface can be designed so that the impinging Drops remain as isolated as possible and even from the flow again can be carried away.
- the surfaces can be smooth, rough, porous or otherwise be trained.
- the material itself can be a compact one have a foam-like, fibrous or similar structure.
- the gas parallel the particularly narrow streets of a stack flow through arranged plates so that the probability of gas / surface contact is maximized.
- the decisive factor for the separation lane width to be set and the flow velocity of the gas This The latter two factors depend on the substance constants of the Gases and the current operating parameters such as pressure and temperature. A Optimization of the deposition is therefore taking these parameters into account possible.
- the direction of the flow can Requirements are adapted, for example, cocurrent or countercurrent of the gas to the separated liquid and the position of the separator compared to the horizontal or vertical.
- ceramic materials can be classified as electrical insulators, the conductivity of both the composition and depends on the temperature.
- zirconium oxide-containing ceramics from a temperature above 600 ° C
- there is a very different change in conductivity showing materials that rapidly increase in one with increasing temperature Range of conductors with a resistance in the kiloohm range. This Effect is particularly pronounced with melt-cast ceramics and is based obviously on a given by the special structure of the material facilitated electron mobility.
- the uses of oxides from the Row of sub-group elements, for example zirconium oxide and the like are therefore preferable.
- non-oxide Ceramics such as carbides, silicides, nitrides or the like.
- thermal emission To build up a field between at least two surfaces of the above The effect known as thermal emission is used.
- the method according to the invention uses special material properties corresponding temperature and flow conditions to in a gas stream to divert, collect or otherwise present the smallest diameter drops to influence, the measures according to the invention being economical and are easy to implement.
- a plate pack is shown schematically, which consists of a variety there are parallel plates that clear alleys between them.
- the distances are adjustable, for which adjustment bolts and washers can be used.
- This Fastening areas can be outside of the flow area or compared to this be streamlined disguised.
- the plates 2, 3 can be made of materials that are different Generate charges when very hot gases flow through them, see above that an electric field can be built up. This can be done as described significantly promote the separation of liquid drops.
- the separator 1 has the plates 2, 3 on, in a housing 4 by means of adjusting bolts 5, 6 to form correspondingly narrow streets are adjustable. In the embodiment shown the flow takes place in the direction of arrow 7.
- the plates can also be hung in flow cross-sections, in grooves used or otherwise attached.
- the plates can be emitted as conductive / insulating plates or with reversed polarity.
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Abscheidung von Flüssigkeitstropfen mit Durchmessern kleiner als 10µm aus einer sehr heißen Gasströmung. Es ist bekannt, daß eine Abscheidung von Flüssigkeitströpfchen aus einer Gasphase mit kleiner werdendem Durchmesser, insbesondere bei Unterschreiten von Durchmessern ab 10 µm, erhebliche Schwierigkeiten bereitet. In unterschiedlichen industriellen Bereichen ist jedoch das Abscheiden derartiger kleiner Tröpfchen erwünscht und erforderlich.The invention relates to a method for separating liquid drops Diameters less than 10µm from a very hot gas flow. It is known that a separation of liquid droplets from a gas phase with decreasing diameter, especially when falling below Diameters from 10 µm, considerable difficulties. In different industrial areas, however, is the separation of such small droplets wanted and required.
Aus der DE 42 14 094 C1 ist ein Tropfenabscheider zum Abscheiden von Tropfen aus einer flüssigkeitsgelandenen Gasströmung bekannt. Es handelt sich um ein wellenförmiges Profil mit einer Durchströmungslinie, die einer Sinuswelle ähnelt. Die vorbekannte Vorrichtung eignet sich für Tropfen mit großem Durchmesser und basiert auf dem Prinzip der direkten Wandanströmung infolge der Tropfenträgheit. Ein auf dem gleichen Prinzip basierender Tropfenabscheider ist aus der DE 78 15 425 U1 bekannt. In dieser Druckschrift ist vorgeschlagen, zur Reduzierung der Größe der abscheidbaren Tropfen die sinusförmigen Durchlässe mit Queraussteifungsplatten und an den Rändern mit gewellten Platten zu versehen, um somit die Platten möglichst dünn herstellen und somit gut formen zu können.DE 42 14 094 C1 describes a droplet separator for separating droplets known from a liquid-flow gas flow. It's about a wavy profile with a flow line that resembles a sine wave. The known device is suitable for large diameter drops and is based on the principle of direct wall flow due to the droplet inertia. A droplet separator based on the same principle is known from DE 78 15 425 U1 known. In this document it is proposed to reduce the Size of the separable drops with the sinusoidal passages Cross-bracing plates and corrugated plates at the edges, so that the plates can be made as thin as possible and thus shaped well.
An sich eignen sich für eine Tropfenabscheidung alle Arten von Staubabscheidern, zum Beispiel filternde Abscheider, Elektroabscheider, Zyklone und dergleichen. Speziell für Tropfenabscheidungen werden jedoch bevorzugt Lamellen- und Zentrifugalabscheider eingesetzt. Hierbei wird, wie in den oben beschriebenen Tropfenabscheidersystemen, dem Gasstrom eine Richtungsänderung aufgezwungen, welcher die Flüssigkeitströpfchen infolge Trägheit nicht folgen und somit an der Kanalwandung niederschlagen. Bei Tröpfchen kleiner 10 µm kann jedoch ein derartiges System nicht wirksam eingesetzt werden, da diese Tröpfchen dem Gasstrom fast trägheitslos folgen.All types of dust separators are suitable for droplet separation, for example filtering separators, electrical separators, cyclones and the like. However, lamella and Centrifugal separator used. Here, as described in the above Droplet separator systems, the gas flow one Direction change forced, which the liquid droplets as a result Do not follow inertia and thus precipitate on the channel wall. at However, such a system cannot be effective for droplets smaller than 10 µm can be used because these droplets follow the gas flow almost without inertia.
Einsatzgebiete, in welchen auch derartig kleine Tröpfchen aus der Gasphase abgeschieden werden müssen, ergeben sich beispielsweise im Bereich der Kraftwerkstechnologie, zum Beispiel bei Gasturbinen, die mit extrem hohen Antriebstemperaturen arbeiten, und dergleichen. Bereits kleinste Tröpfchen können in Abhängigkeit von der Gasgeschwindigkeit zu erheblichen Beschädigungen oder Verringerungen von Standzeiten von eingesetzten Vorrichtungen führen.Areas of application in which such small droplets from the gas phase must be separated, for example in the area of Power plant technology, for example in gas turbines with extremely high Drive temperatures work, and the like. Even the smallest droplets can become significant depending on the gas velocity Damage or reduction in the service life of used Devices.
Ausgehend von diesem Stand der Technik liegt der vorliegenden Erfindung die Aufgabe zugrunde, ein Verfahren zur Abscheidung von Flüssigkeitstropfen mit Durchmessern kleiner als 10µm aus einer sehr heißen Gasströmung bereitzustellen, welches zur Abscheidung unabhängig vom Temperaturbereich mit einfachen Mitteln geeignet ist.Starting from this prior art, the present invention has for its object to provide a method for separating liquid drops with diameters smaller than 10 microns from a very hot gas flow, which is suitable for the deposition regardless of the temperature range with simple means.
Verfahrensseitig wird zur technischen Lösung dieser Aufgabe vorgeschlagen ein Verfahren zum Abscheiden von Flüssigkeitstropfen mit Durchmessern kleiner als 10µm aus einer sehr heißen Gasströmung, wobei das Gas in seinem Strömungsweg durch mittels zueinander parallelen Platten gebildete Gassen geführt wird, die derart eng gewählt sind, daß sich erhebliche Verwirbelungen im Durchströmungsweg ergeben, wobei die Platten eine Oberfäche aus einer Keramik mit Oxyden aus der Reihe der Nebengruppenelemente aufweisen, die bei hoher Temperatur eine ladungserzeugende Oberfläche ausbildet.On the process side, the technical solution to this problem is proposed a method for separating liquid drops with diameters smaller than 10 μm from a very hot gas flow, the gas being guided in its flow path through alleys formed by parallel plates, which are chosen so closely that considerable Whirls in the flow path result, the plates having a surface made of a ceramic with oxides from the group of subgroup elements, which forms a charge-generating surface at high temperature.
Durch die erfindungsgemäße Lösung wird der Effekt genutzt, daß strömende Gase in einem Rohr eine vom Abstand von der Wand abhängige Strömungsgeschwindigkeit aufweisen. Die Gasmoleküle in unmittelbarer Wandnähe werden in ihrer Geschwindigkeit stark abgebremst, nahezu auf 0, während sich mit zunehmender Entfernung von der Wand höhere Geschwindigkeiten einstellen. Sind die Gassen eng genug gewählt, ergeben sich erhebliche Verwirbelungen im Durchströmungsweg. Da die zur Diskussion stehenden Flüssigkeitstropfen dem Gasstrom fast trägheitslos folgen, werden sie statistisch an eine Wandung gelangen und sich dort niederschlagen. Zusätzlich zu den Platten können Körper zur Gassenbildung kombiniert werden. The solution according to the invention takes advantage of the effect that flowing gases in a pipe one depending on the distance from the wall Have flow rate. The gas molecules in immediate The speed near the wall is slowed down considerably, almost to 0, while increasing with distance from the wall Set speeds. If the alleys are narrow enough, the result is considerable turbulence in the flow path. As for discussion standing liquid drops follow the gas flow almost without inertia, they will statistically reach a wall and are reflected there. In addition to the plates, bodies can be combined to form alleys become.
In vorteilhafter Weise wird die Gassenbreite so eng gewählt, daß unter Berücksichtigung der Geschwindigkeit des Gases die Wahrscheinlichkeit für einen Gas-/Oberflächenkontakt maximiert wird. Mit besonderem Vorteil wird vorgeschlagen, daß die Gassenbreite variabel einstellbar ist. Gemäß einem weiteren vorteilhaften Vorschlag der Erfindung kann die Gassenbreite über den Strömungsweg unterschiedlich sein.Advantageously, the alley width is chosen so narrow that under Taking into account the speed of the gas the probability of one Gas / surface contact is maximized. With particular advantage proposed that the alley width is variably adjustable. According to one Another advantageous proposal of the invention can be the alley width over the Flow path may be different.
Tropfen im Sinne der vorliegenden Erfindung sind das bevorzugte Anwendungsgebiet. Die Erfindung bezieht und eignet sich für jede Art von Partikeln, selbst wenn diese sich in Abhängigkeit von der Temperatur in anderen Aggregat- oder Zwischenzuständen befinden.Drops in the sense of the present invention are preferred Field of use. The invention relates and is suitable for any type of Particles, even if they change depending on the temperature in others Aggregate or intermediate states.
Ein bevorzugter Vorschlag der Erfindung sieht vor, daß einer in Wandnähe auftretenden laminaren Unterschicht durch entsprechende Gestaltung der Oberfläche Rechnung getragen werden kann. Die Haftung der Tröpfchen an der Wand wird durch molekulare Wechselwirkung beeinflußt, man spricht dann von Benetzung. Somit kann durch geeignete Wahl des Materials für die Oberfläche der umströmten Körper oder der Platten auf die Haftung erheblich Einfluß genommen werden. Koaleszieren zu einem Flüssigkeitsfilm begünstigt darüber hinaus durch Verringerung der Oberflächenspannung eine Abscheidung.A preferred proposal of the invention provides that one near the wall occurring laminar underlayer by appropriate design of the Surface can be taken into account. The liability of the droplets on the Wall is influenced by molecular interaction, one speaks of Wetting. Thus, by suitable choice of material for the surface of the flowed around the body or the plates on the liability significantly influenced become. Coalescing to a liquid film also favors through Reducing the surface tension of a deposit.
Bei einer weiteren Ausgestaltungsform der Erfindung kann die Oberflächengestaltung unter haftungsrelevanten Gesichtspunkten gewählt sein. Haftungsrelevante Gesichtspunkte im Sinne der vorliegenden Erfindung sind die Frage der Benetzbarkeit bzw. Unbenetzbarkeit einer Oberfläche einerseits sowie die Führung von auf der Oberfläche gesammelter Flüssigkeit andererseits. Eine Oberfläche kann beispielsweise so ausgestaltet werden, daß die Tropfen zusammenlaufen und nicht mehr abreißbare, großflächige, gut führbare Einheiten bilden, oder die Oberfläche kann so ausgestaltet sein, daß die auftreffenden Tropfen möglichst vereinzelt bleiben und sogar wieder von der Strömung mitgerissen werden können. Die Oberflächen können glatt, rauh, porös oder sonstwie ausgebildet werden. Das Material selbst kann eine kompakte, eine schaumartige, eine faserige oder eine ähnliche Struktur aufweisen. In a further embodiment of the invention, the Surface design should be chosen from the point of view of liability. Liability-relevant aspects in the sense of the present invention are Question of the wettability or non-wettability of a surface on the one hand and on the other hand, the guidance of liquid collected on the surface. A Surface can for example be designed so that the drops converge and no longer tear-off, large-area, well manageable units form, or the surface can be designed so that the impinging Drops remain as isolated as possible and even from the flow again can be carried away. The surfaces can be smooth, rough, porous or otherwise be trained. The material itself can be a compact one have a foam-like, fibrous or similar structure.
Bei einer Vorrichtung zur Nutzung des beschriebenen Effektes kann - im einfachsten Fall - das Gas die besonders engen Gassen eines Stapels parallel zueinander angeordneter Platten durchströmen, so daß die Wahrscheinlichkeit eines Gas-/Oberflächenkontaktes maximiert wird. Neben der Wahl der Wandmaterials sind die für die Abscheidung ausschlaggebende Größe die einzustellende Gassenbreite und die Strömungsgeschwindigkeit des Gases. Diese beiden letztgenannten Faktoren sind abhängig von den Stoffkonstanten des Gases und den aktuellen Betriebsparametern wie Druck und Temperatur. Eine Optimierung der Abscheidung ist daher unter Berücksichtigung dieser Parameter möglich.In a device for using the described effect - in simplest case - the gas parallel the particularly narrow streets of a stack flow through arranged plates so that the probability of gas / surface contact is maximized. In addition to the choice of Wall material is the decisive factor for the separation lane width to be set and the flow velocity of the gas. This The latter two factors depend on the substance constants of the Gases and the current operating parameters such as pressure and temperature. A Optimization of the deposition is therefore taking these parameters into account possible.
Die Richtung der Durchströmung kann den Erfordernissen angepaßt werden, beispielsweise Gleichstrom oder Gegenstrom des Gases zur abgeschiedenen Flüssigkeit sowie die Lage des Abscheiders gegenüber der Horizontalen bzw. Vertikalen.The direction of the flow can Requirements are adapted, for example, cocurrent or countercurrent of the gas to the separated liquid and the position of the separator compared to the horizontal or vertical.
Im allgemeinen sind keramische Materialien als elektrische Isolatoren einzuordnen, wobei die Leitfähigkeit sowohl von der Zusammensetzung als auch von der Temperatur abhängig ist. Gute Isolatoreigenschaften kann man jedoch nicht bei allen Keramiken in jedem Temperaturbereich antreffen. So haben sich beispielsweise zirkonoxidhaltige Keramiken ab einer Temperatur über 600°C als gegenüber guten Isolatoren eine stark abweichende Änderung in der Leitfähigkeit aufweisende Materialien erwiesen, die bei steigender Temperatur rapide in einen Bereich von Leitern mit einem Widerstand im Kiloohmbereich gelangen. Dieser Effekt ist besonders ausgeprägt bei schmelzgegossenen Keramiken und beruht offensichtlich auf einer durch die besondere Struktur des Materials gegebenen erleichterten Elektronenbeweglichkeit. Die Verwendungen von Oxiden aus der Reihe der Nebengruppenelemente, beispielsweise Zirkonoxid und dergleichen sind somit zu bevorzugen. In general, ceramic materials can be classified as electrical insulators, the conductivity of both the composition and depends on the temperature. However, you cannot have good isolator properties encounter with all ceramics in every temperature range. So have yourself for example, zirconium oxide-containing ceramics from a temperature above 600 ° C Compared to good insulators, there is a very different change in conductivity showing materials that rapidly increase in one with increasing temperature Range of conductors with a resistance in the kiloohm range. This Effect is particularly pronounced with melt-cast ceramics and is based obviously on a given by the special structure of the material facilitated electron mobility. The uses of oxides from the Row of sub-group elements, for example zirconium oxide and the like are therefore preferable.
Neben den genannten Werkstoffen können andere Keramiken oder keramikähnliche Werkstoffe eingesetzt werden, beispielsweise nicht-oxydische Keramiken wie Carbide, Silicide, Nitride oder ähnliches. Der genannte Effekt der ladungserzeugenden Oberfläche aufgrund hoher Temperatur kann durch das zusätzliche Anlegen von Strom verstärkten werden.In addition to the materials mentioned, other ceramics or ceramic-like materials are used, for example non-oxide Ceramics such as carbides, silicides, nitrides or the like. The said effect of charge-generating surface due to high temperature can by the additional application of electricity will be amplified.
Zum Aufbau eines Feldes zwischen wenigstens zwei Oberflächen der genannten Art wird der als Thermoemission bezeichnete Effekt genutzt.To build up a field between at least two surfaces of the above The effect known as thermal emission is used.
Mit dem erfindungsgemäßen Verfahren können in einem Gasstrom enthaltene Teilchen abgelenkt, gesammelt, neutralisiert oder sonstwie beeinflußt werden. Verfahrensgemäß können die Oberflächen auf einer Wandung eines Strömungsabschnittes, auf einem Zusatzelement oder auf einem im Strömungsbereich ohnehin anzuordnenden Bauteil ausgebildet sein.With the method according to the invention can be contained in a gas stream Particles are deflected, collected, neutralized or otherwise affected. According to the method, the surfaces on a wall of a Flow section, on an additional element or on an in Flow area to be arranged component to be arranged anyway.
Das erfindungsgemäße Verfahren nutzt besondere Materialeigenschaften bei entsprechenden Temperatur- und Strömungsbedingungen, um in einem Gasstrom befindliche Tropfen kleinster Durchmesser abzulenken, zu sammeln oder sonstwie zu beeinflussen, wobei die erfindungsgemäßen Maßnahmen wirtschaftlich und einfach realisierbar sind.The method according to the invention uses special material properties corresponding temperature and flow conditions to in a gas stream to divert, collect or otherwise present the smallest diameter drops to influence, the measures according to the invention being economical and are easy to implement.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus der folgenden Beschreibung anhand der Figuren. Dabei zeigen:
Figur 1- eine schematische perspektivische Ansicht eines Ausführungsbeispiels für einen Abscheider.
- Figure 1
- is a schematic perspective view of an embodiment of a separator.
In Figur 1 ist schematisch ein Plattenpaket gezeigt, welches aus einer Vielzahl paralleler Platten besteht, die zwischen sich Gassen freilassen. Die Abstände sind einstellbar, wozu Einstellbolzen und -scheiben verwendet werden können. Diese Befestigungsbereiche können außerhalb des durchströmten Bereiches liegen oder gegenüber diesem strömungsgünstig verkleidet sein.In Figure 1, a plate pack is shown schematically, which consists of a variety there are parallel plates that clear alleys between them. The distances are adjustable, for which adjustment bolts and washers can be used. This Fastening areas can be outside of the flow area or compared to this be streamlined disguised.
Die Platten 2, 3 können aus Materialien hergestellt sein, die unterschiedliche
Ladungen bei der Durchströmung mit sehr heißen Gasen hervorbringen, so
daß sich ein elektrisches Feld aufbauen läßt. Dieses kann in beschriebener Weise
die Abscheidung von Flüssigkeitstropfen erheblich fördern. Der Abscheider 1 weist
die Platten 2, 3 auf, die in einem Gehäuse 4 mittels Einstellbolzen 5, 6 zur Bildung
entsprechend enger Gassen einstellbar sind. Im gezeigten Ausführungsbeispiel
erfolgt die Durchströmung in Richtung des Pfeils 7.The
Die Platten können auch in Durchströmungsquerschnitte eingehängt, in Nuten eingesetzt oder sonstwie befestigt werden. Die Platten können emittierend als leitende/isolierende Platten oder mit umgekehrter Polarität eingesetzt werden. The plates can also be hung in flow cross-sections, in grooves used or otherwise attached. The plates can be emitted as conductive / insulating plates or with reversed polarity.
- 11
- Abscheiderseparators
- 22
- Plattenplates
- 33
- Platteplate
- 44
- Gehäusecasing
- 55
- Einstellbolzenadjusting
- 66
- Einstellbolzenadjusting
- 77
- DurchströmungsrichtungFlow direction
Claims (6)
- Process for separating liquid drops of diameters of less than 10µm from a very hot gas stream, wherein the gas is routed in its flow path through channels which are formed by means of parallel plates and which are of a narrowness such that considerable turbulence is produced in the through-flow path, wherein the plates have a surface of a ceramic material with oxides from the subgroup element series which forms a charge-generating surface at a high temperature.
- Process according to Claim 1, characterised in that the channel width is of a narrowness such that, taking account of the gas speed, the probability of gas/surface contact is maximised.
- Process according to either of the preceding Claims, characterised in that the channel width is variably adjustable.
- Process according to any one of the preceding Claims, characterised in that a varying channel width is set over the through-flow length.
- Process according to any one of the preceding Claims, characterised in that the surfaces are configured according to adherence-relevant aspects.
- Process according to any one of the preceding Claims, characterised in that the channel-forming surfaces are porous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK96922843T DK0782471T3 (en) | 1995-06-19 | 1996-06-19 | Process for separating liquid droplets from a gas stream |
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19522104 | 1995-06-19 | ||
| DE19522104 | 1995-06-19 | ||
| DE19522103 | 1995-06-19 | ||
| DE19522102 | 1995-06-19 | ||
| DE19522103 | 1995-06-19 | ||
| DE19522102 | 1995-06-19 | ||
| PCT/EP1996/002651 WO1997000116A1 (en) | 1995-06-19 | 1996-06-19 | Process and device for separating liquid drops from a gas stream |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0782471A1 EP0782471A1 (en) | 1997-07-09 |
| EP0782471B1 true EP0782471B1 (en) | 2004-11-24 |
Family
ID=27215202
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96922844A Expired - Lifetime EP0782476B1 (en) | 1995-06-19 | 1996-06-19 | Process and device for separating liquid drops from a gas stream |
| EP96922843A Expired - Lifetime EP0782471B1 (en) | 1995-06-19 | 1996-06-19 | Process for separating liquid drops from a gas stream |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96922844A Expired - Lifetime EP0782476B1 (en) | 1995-06-19 | 1996-06-19 | Process and device for separating liquid drops from a gas stream |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US6003434A (en) |
| EP (2) | EP0782476B1 (en) |
| AT (2) | ATE283109T1 (en) |
| AU (2) | AU6357796A (en) |
| CA (1) | CA2203891C (en) |
| DE (2) | DE59611148D1 (en) |
| DK (1) | DK0782476T3 (en) |
| WO (2) | WO1997000116A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19541803B4 (en) * | 1995-11-09 | 2013-06-27 | Robert Bosch Gmbh | Heat exchanger for gas-heated water heaters |
| FR2769517B1 (en) * | 1997-10-13 | 1999-11-12 | Francis Al Dullien | CROSSLINKED FOAM SPONGIOUS TYPE SEPARATOR |
| FR2821281B1 (en) * | 2001-02-28 | 2003-04-18 | Inst Francais Du Petrole | SEPARATOR IN POROUS MATERIAL COMPRISING A FELT STRUCTURE AND APPARATUS COMPRISING SUCH A SEPARATOR |
| CA2456375A1 (en) * | 2004-01-27 | 2005-07-27 | Alberta Research Council, Inc. | Method and apparatus for separating particles from a gas stream |
| DE502004010923D1 (en) * | 2004-05-04 | 2010-04-29 | Munters Euroform Gmbh Carl | droplet |
| MX344139B (en) * | 2004-06-14 | 2016-12-07 | Pratt & Whitney Line Maintenance Services Inc | System and devices for collecting and treating waste water from engine washing. |
| US7306655B2 (en) * | 2006-04-18 | 2007-12-11 | Oreck Holdings, Llc | Corona ground element |
| US7276106B1 (en) * | 2006-04-18 | 2007-10-02 | Oreck Holdings Llc | Electrode wire retaining member for an electrostatic precipitator |
| EP1878506B1 (en) * | 2006-07-13 | 2019-10-16 | Trinc.Org | Flotage trapping device |
| US8206478B2 (en) | 2010-04-12 | 2012-06-26 | Pratt & Whitney Line Maintenance Services, Inc. | Portable and modular separator/collector device |
| SG11201602221RA (en) | 2013-10-10 | 2016-04-28 | Ecoservices Llc | Radial passage engine wash manifold |
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| DE547981C (en) * | 1932-04-05 | Ernst Heilmann Dipl Ing | Settling plate for gravity separator | |
| 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 (en) * | 1943-08-05 | 1945-12-15 | Bbc Brown Boveri & Cie | Device for separating liquid droplets that float in a gas stream. |
| US2724457A (en) * | 1953-12-22 | 1955-11-22 | Charles S Besser | Electrostatic air filter |
| DE1007296B (en) * | 1954-12-10 | 1957-05-02 | Eugen Feifel Dr Ing | Two-zone filter with contact electrical charging |
| DE1137980B (en) * | 1955-04-15 | 1962-10-11 | Ford Werke Ag | Electrostatic device for multi-sided paint spraying on workpieces |
| 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 (en) * | 1958-03-28 | 1964-08-21 | Methods of cleaning the gas circuit of thermal generators by application of so-called aerosols: thermal aerosol processes | |
| DE1249221B (en) * | 1961-05-18 | 1967-09-07 | Aktiengesellschaft Brown, Boveri & Qe., Baden (Schweiz) | Device for separating liquid droplets from a gas stream |
| US3405511A (en) * | 1966-05-16 | 1968-10-15 | Burgess Manning Co | Vane type separator |
| FR1525097A (en) * | 1967-01-24 | 1968-05-17 | Ameliorair Sa | Improvements to installations with baffle separators |
| CH546594A (en) * | 1969-07-14 | 1974-03-15 | Hungate Ernest Cornell | Disentrainment of liquid droplets from gas stream - using chevron arrange-ment of parallel plates with foam coating in final passages |
| 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 (en) * | 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 | High resistance dust collection method |
| FR2395061A1 (en) * | 1977-06-23 | 1979-01-19 | Hamon | Liq. drop separator e.g. for industrial refrigerators - has parallel corrugated plates joined by bracing plates whose edges follow the corrugations |
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| US4340616A (en) * | 1980-02-19 | 1982-07-20 | United States Steel Corporation | Method for decreasing the wear on a surface |
| SU1072877A1 (en) * | 1982-12-28 | 1984-02-15 | Руставский Химический Завод | Separator |
| DE8701718U1 (en) * | 1987-02-05 | 1987-04-02 | Metzka, Hans-Joachim, 8500 Nuernberg, De | |
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-
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 AT AT96922843T patent/ATE283109T1/en not_active IP Right Cessation
- 1996-06-19 DE DE59611148T patent/DE59611148D1/en not_active Expired - Lifetime
- 1996-06-19 WO PCT/EP1996/002651 patent/WO1997000116A1/en active IP Right Grant
- 1996-06-19 CA CA002203891A patent/CA2203891C/en not_active Expired - Fee Related
- 1996-06-19 AT AT96922844T patent/ATE250461T1/en not_active IP Right Cessation
- 1996-06-19 DE DE59610732T patent/DE59610732D1/en not_active Expired - Lifetime
- 1996-06-19 DK DK96922844T patent/DK0782476T3/en active
- 1996-06-19 WO PCT/EP1996/002652 patent/WO1997000139A1/en active IP Right Grant
- 1996-06-19 US US08/793,906 patent/US6080225A/en not_active Expired - Fee Related
- 1996-06-19 AU AU63576/96A patent/AU6357696A/en not_active Abandoned
- 1996-06-19 EP EP96922844A patent/EP0782476B1/en not_active Expired - Lifetime
- 1996-06-19 EP EP96922843A patent/EP0782471B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2203891C (en) | 2007-09-11 |
| AU6357796A (en) | 1997-01-15 |
| DK0782476T3 (en) | 2004-02-09 |
| US6080225A (en) | 2000-06-27 |
| EP0782476B1 (en) | 2003-09-24 |
| EP0782471A1 (en) | 1997-07-09 |
| ATE283109T1 (en) | 2004-12-15 |
| ATE250461T1 (en) | 2003-10-15 |
| DE59610732D1 (en) | 2003-10-30 |
| CA2203891A1 (en) | 1997-01-03 |
| WO1997000116A1 (en) | 1997-01-03 |
| US6003434A (en) | 1999-12-21 |
| EP0782476A1 (en) | 1997-07-09 |
| WO1997000139A1 (en) | 1997-01-03 |
| AU6357696A (en) | 1997-01-15 |
| DE59611148D1 (en) | 2004-12-30 |
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