EP0039767A2 - Cyclone, especially for multi-stage heat exchanger - Google Patents

Cyclone, especially for multi-stage heat exchanger Download PDF

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Publication number
EP0039767A2
EP0039767A2 EP81102125A EP81102125A EP0039767A2 EP 0039767 A2 EP0039767 A2 EP 0039767A2 EP 81102125 A EP81102125 A EP 81102125A EP 81102125 A EP81102125 A EP 81102125A EP 0039767 A2 EP0039767 A2 EP 0039767A2
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EP
European Patent Office
Prior art keywords
cyclone
spiral
partial
diameter
spirals
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Granted
Application number
EP81102125A
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German (de)
French (fr)
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EP0039767B1 (en
EP0039767A3 (en
Inventor
Otto Ing. Grad. Heinemann
Heinz-Herbert Ing. Grad. Schmits
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ThyssenKrupp Industrial Solutions AG
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Krupp Polysius AG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C3/00—Other direct-contact heat-exchange apparatus
    • F28C3/10—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material
    • F28C3/12—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/08—Vortex chamber constructions
    • B04C5/081—Shapes or dimensions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/04—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being spirally coiled

Definitions

  • the invention relates to a cyclone, in particular for multi-stage heat exchangers, with an external inlet spiral and a gas line which is supplied from below and is deflected approximately at right angles directly in front of the inlet spiral.
  • Multi-stage cyclone heat exchangers are used, for example, as preheaters in cement kilns.
  • attempts are made to further reduce the overall volume of the cyclones.
  • considerable separation problems arise.
  • the outer entry spiral should extend over a circumferential angle of at least 180 °.
  • this requires a considerable volume and weight of the cyclone.
  • the gas flow undergoes an approximately right-angled deflection before entering the cyclone, which leads to a separation of the dust in the gas and results in a particularly high dust accumulation in the uppermost part of the entry spiral.
  • the invention is therefore based on the object, avoiding these disadvantages, to design a cyclone of the type mentioned in such a way that the construction volume and the dead weight are substantially reduced with approximately the same pressure loss and degree of separation.
  • the invention thus makes use of the knowledge that, on the one hand, a longer separation path and a higher centrifugal force are required in the upper region of the entry spiral because of the higher dust load present there (due to the deflection of the gas flow in the gas feed line), while on the other hand a reduction in the length of the entry spiral is required in the lower area, a reduction in the diameter of the cyclone housing in this lower area, and thus a substantial reduction in the construction volume of the cyclone, is made possible.
  • the required height of the cyclone funnel depends on the diameter of the cyclone housing at the upper edge of the funnel; this housing diameter is significantly reduced by the subdivision of the entry spiral according to the invention and the lengthwise gradation of the partial spirals.
  • the uppermost partial spiral expediently extends over a circumferential angle between 180 ° and 360 ° and the lowermost partial spiral extends over a circumferential angle between 90 and 180 °, preferably between 135 and 180 °.
  • the length of the partial spirals in between is graded accordingly.
  • the cyclone 1 shown in FIGS. 1 to 3 contains an inlet spiral 2, which is connected to a gas supply line which is not shown, is supplied from below and is deflected approximately at right angles, and is divided into three partial spirals 3, 4 and 5 lying one above the other. These three partial spirals 3, 4 and 5 have a different length, decreasing from top to bottom.
  • the uppermost partial spiral 3 extends over a circumferential angle of approximately 270 °, the central partial spiral 4 over a circumferential angle of approximately 180 ° and the lowermost partial spiral 5 over a circumferential angle of approximately 135 °.
  • All partial spirals 3, 4 and 5 open out in the diameter D of the cyclone housing, which corresponds to the diameter of the gas outlet opening 6 of this cyclone, which is designed without a dip tube.
  • a material discharge funnel 8 is connected to the lowermost partial spiral 4 via a relatively short cylindrical connecting piece 7.
  • FIG 4 differs from that in Figures 1 to 3 illustrated cyclone 9. merely by the presence of a dip tube, the diameter d of this immersion pipe is slightly smaller than the diameter D of the yklongereheatuses Z, in which the partial spirals 3, 4 and 5 of the entry spiral 2 open.

Abstract

Die Erfindung betrifft einen insbesondere für mehrstufige Wärmetauscher bestimmten Zyklon, dessen Eintrittsspirale in mehrere übereinanderliegende Teilspiralen unterteilt ist, die eine unterschiedliche, von oben nach unten abnehmende Länge aufweisen. Ein solcher Zyklon zeichnet sich bei etwa gleichem Druckverlust und Abscheidegrad durch ein wesentlich verringertes Bauvolumen und Eigengewicht aus.The invention relates to a cyclone, in particular for multi-stage heat exchangers, whose inlet spiral is subdivided into a plurality of partial spirals lying one above the other, which have a different length that decreases from top to bottom. Such a cyclone is characterized by a substantially reduced construction volume and its own weight, with approximately the same pressure loss and degree of separation.

Description

Die Erfindung betrifft einen Zyklon, insbesondere für mehrstufige Wärmetauscher, mit einer außenliegenden Eintrittsspirale und einer von unten zugeführten, unmittelbar vor der Eintrittsspirale etwa rechtwinklig umgelenkten Gasleitung.The invention relates to a cyclone, in particular for multi-stage heat exchangers, with an external inlet spiral and a gas line which is supplied from below and is deflected approximately at right angles directly in front of the inlet spiral.

Mehrstufige Zyklonwärmetauscher werden beispielsweise als Vorwärmer in Zementbrennanlagen verwendet. In dem Bestreben, die Bauhöhe derartiger mehrstufigerzyklonwärmetauscher zu verringern, versucht man, das Bauvolumen der Zyklone weiter zu verkleinern. Hierbei tauchen jedoch angesichts der hohen Staubbeladung der Gase in solchen Wärmetauschern erhebliche Abscheideprobleme auf.Multi-stage cyclone heat exchangers are used, for example, as preheaters in cement kilns. In an effort to reduce the overall height of such multi-stage cyclone heat exchangers, attempts are made to further reduce the overall volume of the cyclones. However, given the high dust loading of the gases in such heat exchangers, considerable separation problems arise.

Um einen annehmbaren Abscheidegrad zu erreichen, sollte sich die außenliegende Eintrittsspirale über einen-Umfangswinkel von mindestens 180° erstrecken. Dies bedingt jedoch ein beträchtliches Bauvolumen und Eigengewicht des Zyklons. Hinzu kommt, daß beim Hintereinanderschalten mehrerer Zyklonstufen die Gasströmung vor Eintritt in den Zyklon eine etwa rechtwinklige Umlenkung erfährt, was zu einer Separation des Staubes im Gas führt und im obersten Teil der Eintrittsspirale eine besonders hohe Staubanreicherung zur Folge hat.In order to achieve an acceptable degree of separation, the outer entry spiral should extend over a circumferential angle of at least 180 °. However, this requires a considerable volume and weight of the cyclone. In addition, when several cyclone stages are connected in series, the gas flow undergoes an approximately right-angled deflection before entering the cyclone, which leads to a separation of the dust in the gas and results in a particularly high dust accumulation in the uppermost part of the entry spiral.

Wird nun ein derartiger Zyklon sehr klein ausgeführt und wird wegen der hohen Betriebstemperaturen nur ein sehr kurzes oder überhaupt kein Tauchrohr eingebaut, so zeigen die praktischen Erfahrungen, daß sich in einem solchen Zyklon kaum noch ein die Abscheidung fördernder Wirbel ausbildet. Der Wirbel wird vielmehr schon nach etwa einer halben Umdrehung aufgelöst, und das Gas strömt durch die Austrittsöffnung zur nächsten Zyklonstufe. In den unteren zwei Drittel der Bauhöhe des Zyklons erfolgt keine nennenswerte Staubabscheidung durch Wirbelbildung.If such a cyclone is now made very small and, because of the high operating temperatures, only a very short or no immersion tube is installed, practical experience shows that in such a cyclone there is hardly any vortex that promotes separation. Rather, the vortex dissolves after about half a revolution and the gas flows through the outlet opening to the next cyclone stage. In the lower two thirds of the cyclone's height, there is no significant dust separation due to eddy formation.

Der Erfindung liegt daher die Aufgabe zugrunde, unter Vermeidung dieser Nachteile einen Zyklon der eingangs genannten Art so auszubilden, daß bei etwa gleichem Druckverlust und Abscheidegrad das Bauvolumen und das Eigengewicht wesentlich verringert werden.The invention is therefore based on the object, avoiding these disadvantages, to design a cyclone of the type mentioned in such a way that the construction volume and the dead weight are substantially reduced with approximately the same pressure loss and degree of separation.

Diese Aufgabe wird erfindungsgemäß durch die Kombination folgender Merkmale gelöst:

  • a) Die Eintrittsspirale ist in mehrere übereinander liegende Teilspiralen unterteilt;
  • b) die Teilspiralen besitzen eine unterschiedliche, von oben nach unten abnehmende Länge, wobei sich die oberste Teilspirale über einen Umfangswinkel von mindestens 180° und die unterste Teilspirale über einen Umfangswinkel von mindestens 90° erstreckt;
  • c) alle Teilspiralen münden in dem Durchmesser des Zyklongehäuses aus, der dem Durchmesser der Gasaustrittsöffnung eines ohne Tauchrohr ausgeführten Zyklons entspricht.
This object is achieved according to the invention by combining the following features:
  • a) The entry spiral is divided into several partial spirals lying one above the other;
  • b) the partial spirals have a different length, decreasing from top to bottom, the uppermost partial spiral extending over a circumferential angle of at least 180 ° and the lowest partial spiral over a circumferential angle of at least 90 °;
  • c) all partial spirals open out in the diameter of the cyclone housing, which corresponds to the diameter of the gas outlet opening of a cyclone designed without a dip tube.

Die Erfindung macht damit von der Erkenntnis Gebrauch, daß einerseits im oberen Bereich der Eintrittsspirale wegen der dort (durch die Umlenkung der Gasströmung in der Gaszuleitung) vorhandenen höheren Staubbeladung ein längerer Abscheideweg und eine höhere Zentrifugalkraft erforderlich sind, während andererseits eine Verringerung der Länge der Eintrittsspirale im unteren Bereich eine Verkleinerung des Durchmessers des Zyklongehäuses in diesem unteren Bereich und damit eine wesentliche Verringerung des Bauvolumens des Zyklons ermöglicht. So hängt insbesondere die erforderliche Höhe des Zyklontrichters vom Durchmesser des Zyklongehäuses am oberen Trichterrand ab; dieser Gehäusedurchmesser wird durch die erfindungsgemäße Unterteilung der Eintrittsspirale und die längenmäßige Abstufung der Teilspiralen wesentlich verkleinert.The invention thus makes use of the knowledge that, on the one hand, a longer separation path and a higher centrifugal force are required in the upper region of the entry spiral because of the higher dust load present there (due to the deflection of the gas flow in the gas feed line), while on the other hand a reduction in the length of the entry spiral is required in the lower area, a reduction in the diameter of the cyclone housing in this lower area, and thus a substantial reduction in the construction volume of the cyclone, is made possible. In particular, the required height of the cyclone funnel depends on the diameter of the cyclone housing at the upper edge of the funnel; this housing diameter is significantly reduced by the subdivision of the entry spiral according to the invention and the lengthwise gradation of the partial spirals.

Erfindungsgemäß wird die Eintrittsspirale zweckmäßig in mindestens drei Teilspiralen von vorzugsweise gleicher Höhe unterteilt. Die Erfahrung hat dabei gezeigt, daß die Größe von Staubablagerungen auf den sichelförmigen Böden der Teilspiralen von der Größe der Fläche dieser sichelförmigen Böden abhängen. Wird die Eintrittsspirale in mehrere Teilspiralen unterteilt, so ergeben sich verhältnismäßig kleine Bodenflächen der einzelnen Teilspiralen, so daß keine Störungen durch Staubablagerungen auftreten können.According to the invention, the entry spiral is expediently divided into at least three partial spirals, preferably of the same height. Experience has shown that the size of dust deposits on the crescent-shaped bottoms of the partial spirals depend on the size of the surface of these crescent-shaped bottoms. If the inlet spiral is divided into several partial spirals, so resulting relatively small bottom surfaces of the individual T eilspiralen so that no interference can occur due to dust deposits.

Zweckmäßig erstreckt sich die oberste Teilspirale über einen Umfangswinkel zwischen 180° und 360° und die unterste Teilspirale über einen Umfangswinkel zwischen 90 und 180°, vorzugsweise zwischen 135 und 180°. Die dazwischen liegenden Teilspiralen werden in ihrer Länge entsprechend abgestuft.The uppermost partial spiral expediently extends over a circumferential angle between 180 ° and 360 ° and the lowermost partial spiral extends over a circumferential angle between 90 and 180 °, preferably between 135 and 180 °. The length of the partial spirals in between is graded accordingly.

Wird der erfindungsgemäße Zyklon ohne Tauchrohr ausgeführt (wie dies besonders in den heißesten Stufen eines mehrstufigen Wärmetauschers zweckmäßig ist), so münden alle Teilspiralen in dem Durchmesser des Zyklongehäuses aus, der dem Durchmesser der Gasaustrittsöffnung dieses Zyklons entspricht. Bei einem mit Tauchrohr ausgebildeten Zyklon münden andererseits alle Teilspiralen in den Durchmesser des Zyklongehäuses aus, der dem Durchmesser der Gasaustrittsöffnung eines äquivalenten, ohne Tauchrohr ausgeführen Zyklons entspricht.If the cyclone according to the invention carried out without immersion tube (as is expedient particularly in the heißesten stages of a multistage heat exchanger), so all open T eilspiralen in the diameter of the cyclone body, corresponding to the diameter of the gas outlet opening of said cyclone. In the case of a cyclone designed with a dip tube, on the other hand, all the partial spirals open out into the diameter of the cyclone housing, which corresponds to the diameter of the gas outlet opening of an equivalent cyclone designed without an dip tube.

Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung veranschaulicht. Es zeigen

  • Fig.1 einen Horizontalschnitt (längs.der Linie I-I der Fig.2) durch ein erstes Ausführungsbeispiel eines erfindungsgemäßen Zyklons;
  • Fig.2 - einen Vertikalschnitt längs der Linie II-II der Fig.1;
  • Fig.3 einen Vertikalschnitt längs der Linie III-III der Fig.1;
  • Fig.4 einen Schnitt (entsprechend Fig.2) durch ein weiteres Ausführungsbeispiel des erfindungsgemäßen Zyklons.
Two embodiments of the invention are illustrated in the drawing. Show it
  • 1 shows a horizontal section (along line II of FIG. 2) through a first embodiment of a cyclone according to the invention;
  • Fig.2 - a vertical section along the line II-II of Fig.1;
  • 3 shows a vertical section along the line III-III of Figure 1;
  • 4 shows a section (corresponding to FIG. 2) through a further exemplary embodiment of the cyclone according to the invention.

Der in den Fig.1 bis 3 dargestellte Zyklon 1 enthält - anschließend an eine nicht dargestellte, von unten zugeführte und etwa rechtwinklig umgelenkte Gaszuleitung - eine Eintrittsspirale 2, die in drei übereinanderliegende Teilspiralen 3, 4 und 5 unterteilt ist. Diese drei Teilspiralen 3, 4 und 5 besitzen eine unterschiedliche, von oben nach unten abnehmende Länge. Die oberste Teilspirale 3 erstreckt sich über einen Umfangswinkel von etwa 270°, die mittlere Teilspirale 4 über einen Umfangswinkel von etwa 180° und die unterste Teilspirale 5 über einen Umfangswinkel von etwa 135°.The cyclone 1 shown in FIGS. 1 to 3 contains an inlet spiral 2, which is connected to a gas supply line which is not shown, is supplied from below and is deflected approximately at right angles, and is divided into three partial spirals 3, 4 and 5 lying one above the other. These three partial spirals 3, 4 and 5 have a different length, decreasing from top to bottom. The uppermost partial spiral 3 extends over a circumferential angle of approximately 270 °, the central partial spiral 4 over a circumferential angle of approximately 180 ° and the lowermost partial spiral 5 over a circumferential angle of approximately 135 °.

Alle Teilspiralen 3, 4 und 5 münden in dem Durchmesser D des Zyklongehäuses aus, der dem Durchmesser der Gasaustrittsöffnung 6 dieses ohne Tauchrohr ausgeführten Zyklons entspricht.All partial spirals 3, 4 and 5 open out in the diameter D of the cyclone housing, which corresponds to the diameter of the gas outlet opening 6 of this cyclone, which is designed without a dip tube.

An die unterste Teilspirale 4 schließt sich über ein verhältnismäßig kurzes zylindrisches Verbindungsstück 7 ein Gutaustragstrichter 8 an.A material discharge funnel 8 is connected to the lowermost partial spiral 4 via a relatively short cylindrical connecting piece 7.

Das in Fig.4 dargestellte Ausführungsbeispiel unterscheidet sich von dem in den Fig.1 bis 3 dargestellten Zyklon lediglich durch das Vorhandensein eines Tauchrohres 9. Der Durchmesser d dieses Tauchrohres ist etwas kleiner als der Durchmesser D des Zyklongehäuses,in dem die Teilspiralen 3, 4 und 5 der Eintrittsspirale 2 ausmünden.The embodiment shown in Figure 4 differs from that in Figures 1 to 3 illustrated cyclone 9. merely by the presence of a dip tube, the diameter d of this immersion pipe is slightly smaller than the diameter D of the yklongehäuses Z, in which the partial spirals 3, 4 and 5 of the entry spiral 2 open.

In der obigen Beschreibung wurde zur Vereinfachung der Erläuterung von einer vertikalen Ausrichtung der Zyklonachse ausgegangen. Es ist selbstverständlich im Rahmen der Erfindung möglich, den Zyklon auch mit einer beliebigen Achsneigung anzuordnen. Die in der Beschreibung der Eintrittsspirale verwendeten Ausdrücke ("oberste" bzw. "unterste" Teilspirale) sind dann sinngemäß anzupassen.In the above description, a vertical orientation of the cyclone axis was assumed to simplify the explanation. It goes without saying in the frame the invention possible to arrange the cyclone with any axis inclination. The expressions used in the description of the entry spiral ("uppermost" or "lowest" partial spiral) must then be adapted accordingly.

Claims (5)

1. Zyklon, insbesondere für mehrstufige Wärmetauscher, mit einer außenliegenden Eintrittsspirale und einer von unten zugeführten, unmittelbar vor der Eintrittsspirale etwa rechtwinklig umgelenkten Gasleitung, gekennzeichnet durch die Kombination folgender Merkmale: a) Die Eintrittsspirale (2) ist in mehrere übereinanderliegende Teilspiralen (3, 4, 5) unterteilt; b) die Teilspiralen (3, 4, 5) besitzen eine unterschiedliche, von oben nach unten abnehmende Länge, wobei sich die oberste Teilspirale (3) über einen Umfangswinkel von mindestens 180° und die unterste Teilspirale (5) über einen Umfangswinkel von mindestens 90° erstreckt; c) alle Teilspiralen (3, 4, 5) münden in dem Durchmesser(D)des Zyklongehäuses aus, der dem Durchmesser der Gasaustrittsöffnung (6) eines ohne Tauchrohr ausgeführten Zyklons entspricht. 1. Cyclone, in particular for multi-stage heat exchangers, with an external inlet spiral and a gas line which is supplied from below and is deflected approximately at right angles directly in front of the inlet spiral, characterized by the combination of the following features: a) The entry spiral (2) is divided into several partial spirals (3, 4, 5) one above the other; b) the partial spirals (3, 4, 5) have a different length, decreasing from top to bottom, the uppermost partial spiral (3) extending over a circumferential angle of at least 180 ° and the bottom partial spiral (5) over a circumferential angle of at least 90 ° extends; c) all partial spirals (3, 4, 5) open out in the diameter (D) of the cyclone housing, which corresponds to the diameter of the gas outlet opening (6) of a cyclone without a dip tube. 2. Zyklon nach Anspruch 1, dadurch gekennzeichnet, daß die Eintrittsspirale (-2) in mindestens zwei, vorzugsweise drei Teilspiralen (3, 4, 5) von vorzugsweise gleicher Höhe unterteilt ist.2. Cyclone according to claim 1, characterized in that the entry spiral (-2) is divided into at least two, preferably three partial spirals (3, 4, 5) of preferably the same height. 3. Zyklon nach Anspruch 1, dadurch gekennzeichnet, daß sich die oberste Teilspirale (3) über einen Umfangswinkel zwischen 180° und 360° erstreckt.3. Cyclone according to claim 1, characterized in that the uppermost partial spiral (3) extends over a circumferential angle between 180 ° and 360 °. 4. Zyklon nach Anspruch 1, dadurch gekennzeichnet, daß sich die unterste Teilspirale (5) über einen Umfangswinkel zwischen 90 und 180°, vorzugsweise zwischen 135 und 180°, erstreckt.4. Cyclone according to claim 1, characterized in that the lowermost partial spiral (5) extends over a circumferential angle between 90 and 180 °, preferably between 135 and 180 °. 5. Zyklon nach Anspruch 1, enthaltend ein Tauchrohr, dadurch gekennzeichnet, daß alle Teilspiralen (3, 4, 5) in dem Durchmesser(D)des Zyklongehäuses ausmünden, der dem Durchmesser der Gasaustrittsöffnung eines äquivalenten, ohne Tauchrohr (9) ausgeführten Zyklons entspricht.5. Cyclone according to claim 1, comprising an immersion tube, characterized in that all partial spirals (3, 4, 5) open out in the diameter (D) of the cyclone housing, which corresponds to the diameter of the gas outlet opening of an equivalent cyclone without an immersion tube (9) .
EP81102125A 1980-05-14 1981-03-20 Cyclone, especially for multi-stage heat exchanger Expired EP0039767B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803018519 DE3018519A1 (en) 1980-05-14 1980-05-14 CYCLE, ESPECIALLY FOR MULTI-STAGE HEAT EXCHANGERS
DE3018519 1980-05-14

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EP0039767A2 true EP0039767A2 (en) 1981-11-18
EP0039767A3 EP0039767A3 (en) 1982-09-15
EP0039767B1 EP0039767B1 (en) 1985-02-06

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US (1) US4344783A (en)
EP (1) EP0039767B1 (en)
JP (2) JPS5710363A (en)
KR (1) KR830005551A (en)
BR (1) BR8102980A (en)
DE (2) DE3018519A1 (en)
DK (1) DK215481A (en)
ES (1) ES272448Y (en)
IN (1) IN155716B (en)
ZA (1) ZA812693B (en)

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US4786412A (en) * 1987-11-23 1988-11-22 Eagle-Picher Industries, Inc. Hydrocyclone having dewatering tube
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JP5109847B2 (en) * 2008-07-14 2012-12-26 パナソニック株式会社 Dust collector
WO2014196168A1 (en) * 2013-06-06 2014-12-11 パナソニックＩｐマネジメント株式会社 Oil separator and method for manufacturing oil separator
CN106457267B (en) * 2014-08-29 2020-04-21 株式会社日清制粉集团本社 Cyclone separator device and classification method
CN108380403A (en) * 2018-03-07 2018-08-10 深圳市宜和勤环保科技有限公司 A kind of rotational flow sorting devices and methods therefor of crushed material grain diameter

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GB473484A (en) * 1935-04-12 1937-10-11 Adam Johannes Ter Linden Centrifugal means for the extraction of grit from flowing gases
DE875753C (en) * 1941-11-29 1953-05-07 Kohlenscheidungs Ges Mit Besch Device for separating solid good parts suspended in a gas flow
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WO1993010908A1 (en) * 1991-12-02 1993-06-10 Celleco-Hedemora Ab Hydrocyclone with turbulence creating means
US5437794A (en) * 1991-12-02 1995-08-01 Celleco Hedmora Ab Hydrocyclone with turbulence creating means
GB2341124A (en) * 1998-09-04 2000-03-08 Stimvak Limited Suction cleaner
US6494929B2 (en) 1998-09-04 2002-12-17 Stimvak Limited Cyclone for suction cleaner
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Also Published As

Publication number Publication date
EP0039767B1 (en) 1985-02-06
ZA812693B (en) 1982-06-30
JPS5710363A (en) 1982-01-19
JPS5895251U (en) 1983-06-28
DE3168718D1 (en) 1985-03-21
DK215481A (en) 1981-11-15
BR8102980A (en) 1982-02-02
DE3018519A1 (en) 1981-11-19
EP0039767A3 (en) 1982-09-15
US4344783A (en) 1982-08-17
JPS5916134Y2 (en) 1984-05-12
IN155716B (en) 1985-02-23
ES272448U (en) 1984-02-01
KR830005551A (en) 1983-08-20
ES272448Y (en) 1984-09-01

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