EP0052251A1 - Regenerative compressor - Google Patents

Regenerative compressor Download PDF

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Publication number
EP0052251A1
EP0052251A1 EP81108652A EP81108652A EP0052251A1 EP 0052251 A1 EP0052251 A1 EP 0052251A1 EP 81108652 A EP81108652 A EP 81108652A EP 81108652 A EP81108652 A EP 81108652A EP 0052251 A1 EP0052251 A1 EP 0052251A1
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EP
European Patent Office
Prior art keywords
blade rings
blade
rings
side channel
compressor according
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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
Application number
EP81108652A
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German (de)
French (fr)
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EP0052251B1 (en
Inventor
Werner Fischer
Jürgen Schatt
Kurt Willy Dipl.-Ing. Mugele
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Siemens AG
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Siemens AG
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Publication of EP0052251A1 publication Critical patent/EP0052251A1/en
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Publication of EP0052251B1 publication Critical patent/EP0052251B1/en
Expired legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F04D23/008—Regenerative pumps

Definitions

  • the invention relates to a side channel ring compressor, in which the impeller hub is provided with blade rings, to which ring channels are assigned in the housing, and in which a divided middle body is provided between the blade rings.
  • This preamble refers to an arrangement as is known for example from DE-PS 872 819.
  • Ring compressors are already known in which two double-flow impellers are arranged on a shaft. This construction sometimes has assembly problems because the individual impellers must be precisely adjusted with respect to the gaps.
  • the object of the present invention is to design a compressor of the type mentioned in such a way that an arrangement with at least four active ring channels results in a simple manner.
  • the central body is additionally provided with ring channels which are assigned to the blade sides of the blade rings facing the central body.
  • a ring compressor with four active ring channels is obtained, which is relatively easy to disassemble and assemble and in which the problems of gap adjustment are not particularly difficult.
  • the present invention is not limited to the use of two vane wheels on a hub, but further vane rings can also be arranged on the same hub.
  • the blade rings can be arranged symmetrically with respect to the hub or on only one side of the hub. In the latter case, the blade rings and the associated housing can cover the electric motor used to drive the ring compressor in a pot-like manner. In a further development of this idea, it is advantageous if the drive motor is designed directly as an external rotor motor and carries the blade rings.
  • the individual ring channels can be well separated from one another and pressure stages that are largely independent of one another can thus be formed.
  • a hub 2 is fastened on a shaft 1 and has two double-flow vane rings 3 and 4 on its outer circumference.
  • the blade rings 3 and 4 are surrounded by a fixed housing 5.
  • the ring channel 51 of the housing 5 is assigned to the left half 32 of the blade ring 3 and the ring gap 52 to the right half 42 of the blade ring 4.
  • the flow in these ring channels 61 and 62 is generated by the active impeller halves 31 and 41 of the blade rings 3 and 4.
  • Figure 2 shows an extension of the basic idea shown in Figure 1, namely that in addition to the blade rings 3 and 4, other blade rings, e.g. Wreath 7 may be provided, the ring channels 53 are formed by corresponding recesses in the divided housing and a further center piece.
  • Figure 3 shows a modification in such a way that the two double-flow vane rings 3 and 4 are arranged on one side of the hub 2 and cover the motor 11 used for driving the pot like a pot.
  • the center body 6 is provided with either a circumferential projection 63 or a circumferential recess 64, which are then encompassed by the recesses 33 in the blade rings 3 or as circumferential ones Extend extension 43 of blade ring 4 into recess 64.
  • each impeller for example 9 has four blade parts 91, 92, 93 and 94 which work together with an annular gap If you do not want to reach for a split housing, an additional split center body 10 must be provided here in addition to the center body 6.

Abstract

1. A side channel centrifugal compressor, in which the rotor hub (2) is provided with at least two rings of blades (3, 4) to which are assigned active annular channels (51, 52) in the housing (5), and in which a shared central body (6) is arranged between the blade rings, characterised in that the central body (6) is additionally provided with at least two active annular channels (61, 62) which are assigned to the blade sides (31, 41) of the double-suction blade rings (3, 4) which face towards the central body.

Description

Die Erfindung bezieht sich auf einen Seitenkanal-Ringverdichter, bei dem die Laufradnabe mit Schaufelkränzen versehen ist, denen im Gehäuse Ringkanäle zugeordnet sind und bei dem zwischen den Schaufelkränzen ein geteilter Mittelkörper vorgesehen ist.The invention relates to a side channel ring compressor, in which the impeller hub is provided with blade rings, to which ring channels are assigned in the housing, and in which a divided middle body is provided between the blade rings.

Mit diesem Oberbegriff wird auf eine Anordnung Bezug genommen , wie sie beispielsweise aus der DE-PS 872 819 bekannt ist.This preamble refers to an arrangement as is known for example from DE-PS 872 819.

Es sind bereits Ringverdichter bekannt, bei denen auf einer Welle zwei doppelflutige Laufräder angeordnet sind. Diese Konstruktion weist gelegentlich Probleme beim Zusammenbau auf, da die einzelnen Laufräder genau in bezug auf die Spalte justiert sein müssen.Ring compressors are already known in which two double-flow impellers are arranged on a shaft. This construction sometimes has assembly problems because the individual impellers must be precisely adjusted with respect to the gaps.

Die Aufgabe der vorliegenden Erfindung besteht darin, einen Verdichter der eingangs genannten Art so auszubilden, daß sich auf einfache Weise eine Anordnung mit mindestens vier aktiven Ringkanälen ergibt.The object of the present invention is to design a compressor of the type mentioned in such a way that an arrangement with at least four active ring channels results in a simple manner.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Mittelkörper zusätzlich mit Ringkanälen versehen ist, die den dem Mittelkörper zugewandten Schaufelseiten der Schaufelkränze zugeordnet sind.This object is achieved in that the central body is additionally provided with ring channels which are assigned to the blade sides of the blade rings facing the central body.

Auf diese Weise erhält man einen Ringverdichter mit vier aktiven Ringkanälen, der verhältnismäßig leicht demontierbar und montierbar ist und bei dem die Probleme der Spaltjustierung keine allzu großen Schwierigkeiten bereiten. Die vorliegende Erfindung ist nicht auf die Verwendung zweier Schaufelräder auf einer Nabe beschränkt, sondern es können genausogut auf der gleichen Nabe auch weitere Schaufelkränze angeordnet werden.In this way, a ring compressor with four active ring channels is obtained, which is relatively easy to disassemble and assemble and in which the problems of gap adjustment are not particularly difficult. The present invention is not limited to the use of two vane wheels on a hub, but further vane rings can also be arranged on the same hub.

Die Schaufelkränze können symmetrisch in bezug auf die Nabe oder auch auf nur einer Seite der Nabe angeordnet sein. Im letzteren Falle können dann die Schaufelkränze und das zugeordnete Gehäuse den zum Antrieb des Ringverdichters dienenden Elektromotor topfartig überdecken. In einer Weiterbildung dieses Gedankens ist es von Vorteil, wenn der Antriebsmotor direkt als Außenläufermotor ausgebildet ist und die Schaufelkränze trägt.The blade rings can be arranged symmetrically with respect to the hub or on only one side of the hub. In the latter case, the blade rings and the associated housing can cover the electric motor used to drive the ring compressor in a pot-like manner. In a further development of this idea, it is advantageous if the drive motor is designed directly as an external rotor motor and carries the blade rings.

Von Vorteil kann es auch sein, die Schaufelkränze bzw. das Gehäuse radial zu unterteilen, um auch in dieser Richtung mehrere aktive Ringkanäle herzustellen.It can also be advantageous to divide the blade rings or the housing radially in order to produce a plurality of active ring channels in this direction as well.

Sieht man kammartige Dichtungen zwischen den Mittelteilen und den Schaufeln der Schaufelkränze vor, so können die einzelnen Ringkanäle gut voneinander getrennt und damit voneinander weitgehend unabhängige Druckstufen gebildet werden.If comb-like seals are provided between the middle parts and the blades of the blade rings, the individual ring channels can be well separated from one another and pressure stages that are largely independent of one another can thus be formed.

Anhand eines in der Zeichnung dargestellten Ausführungsbeispieles sei die Erfindung näher erläutert; es zeigen:

  • Figur 1 das Prinzip eines Seitenkanalringverdichters mit einer Laufradnabe und zwei Schaufelkränzen,
  • Figur 2 die Erweiterung dieses Gedankens auf mehr als zwei Schaufelkränze,
  • Figur 3 eine asymmetrische Anordnung der Schaufelkränze in bezug auf die Nabe,
  • Figur 4 Dichtungen zwischen den Ringkanälen und
  • Figur 5 eine radiale Unterteilung der einzelnen Schaufelkränze.
The invention will be explained in more detail with reference to an embodiment shown in the drawing; show it:
  • FIG. 1 shows the principle of a side channel ring compressor with an impeller hub and two blade rings,
  • FIG. 2 the expansion of this idea to more than two blade rings,
  • FIG. 3 shows an asymmetrical arrangement of the blade rings with respect to the hub,
  • Figure 4 seals between the ring channels and
  • Figure 5 shows a radial division of the individual blade rings.

Bei der in Figur 1 gezeigten Anordnung ist auf einer Welle 1 eine Nabe 2 befestigt, die an ihrem Außenumfang zwei doppelflutige Schaufelkränze 3 und 4 trägt. Die Schaufelkränze 3 und 4 sind von einem feststehenden Gehäuse 5 umgeben. Der Ringkanal 51 des Gehäuses 5 ist der linken Hälfte 32 des Schaufelkranzes 3 zugeordnet und der Ringspalt 52 der rechten Hälfte 42 des Schaufelkranzes 4. Zwischen den Kränzen 3 und 4 ist ein axial geteilter Mittelkörper 6 vorgesehen, in dem ebenfalls Ringkanäle 61 und 62 untergebracht sind. Die Strömung in diesen Ringkanälen 61 und 62 wird durch die aktiven Laufradhälften 31 und 41 der Schaufelkränze 3 und 4 erzeugt.In the arrangement shown in FIG. 1, a hub 2 is fastened on a shaft 1 and has two double-flow vane rings 3 and 4 on its outer circumference. The blade rings 3 and 4 are surrounded by a fixed housing 5. The ring channel 51 of the housing 5 is assigned to the left half 32 of the blade ring 3 and the ring gap 52 to the right half 42 of the blade ring 4. Between the rings 3 and 4 there is an axially divided middle body 6 in which ring channels 61 and 62 are also accommodated . The flow in these ring channels 61 and 62 is generated by the active impeller halves 31 and 41 of the blade rings 3 and 4.

Figur 2 zeigt eine Erweiterung des in Figur 1 dargestellten prinzipiellen Gedankens, und zwar können zusätzlich zu den Schaufelkränzen 3 und 4 noch weitere Schaufelkränze, z.B. Kranz 7 vorgesehen sein, deren Ringkanäle 53 durch entsprechende Ausnehmungen des geteilten Gehäuses und eines weiteren Mittelstückes gebildet sind.Figure 2 shows an extension of the basic idea shown in Figure 1, namely that in addition to the blade rings 3 and 4, other blade rings, e.g. Wreath 7 may be provided, the ring channels 53 are formed by corresponding recesses in the divided housing and a further center piece.

Figur 3 zeigt eine Abwandlung in der Weise, daß die beiden doppelflutigen Schaufelkränze 3 und 4 auf einer Seite der Nabe 2 angeordnet sind und den zum Antrieb dienenden Motor 11 topfartig überdecken.Figure 3 shows a modification in such a way that the two double-flow vane rings 3 and 4 are arranged on one side of the hub 2 and cover the motor 11 used for driving the pot like a pot.

Um ein Überströmen zwischen den Ringkanälen möglichst zu verhindern, wird bei der in Figur 4 vorgesehenen Anordnung der Mittelkörper 6 entweder mit einem umlaufenden Vorsprung 63 oder einer umlaufenden Ausnehmung 64 versehen, die dann von den Ausnehmungen 33 in den Schaufelkränzen 3 umfaßt werden bzw. als umlaufende Verlängerung 43 des Schaufelkranzes 4 in die Ausnehmung 64 eingreifen.In order to prevent overflow between the ring channels as much as possible, in the arrangement provided in FIG. 4, the center body 6 is provided with either a circumferential projection 63 or a circumferential recess 64, which are then encompassed by the recesses 33 in the blade rings 3 or as circumferential ones Extend extension 43 of blade ring 4 into recess 64.

Bei der in Figur 5 gezeigten Anordnung sind die Schaufelkränze 8 und 9 auch in radialer Richtung unterteilt, so daß jedes Laufrad, z.B. 9, vier Schaufelteile 91, 92, 93 und 94 aufweist, die mit einem Ringspalt zusammenarbeiten. Falls man nicht zu einem geteilten Gehäuse greifen will, muß hier neben dem Mittelkörper 6 noch ein zusätzlicher geteilter Mittelkörper 10 vorgesehen werden.In the arrangement shown in FIG. 5, the blade rings 8 and 9 are also divided in the radial direction, so that each impeller, for example 9, has four blade parts 91, 92, 93 and 94 which work together with an annular gap If you do not want to reach for a split housing, an additional split center body 10 must be provided here in addition to the center body 6.

7 Patentansprüche 5 Figuren7 claims 5 figures

Claims (7)

1. Seitenkanal-Ringverdichter, bei dem die Laufradnabe mit Schaufelkränzen versehen ist, denen im Gehäuse Ringkanäle zugeordnet sind und bei dem zwischen den Schaufelkränzen ein geteilter Mittelkörper vorgesehen ist, dadurch gekennzeichnet , daß der Mittelkörper (6) zusätzlich mit Ringkanälen (61, 62) versehen ist, die den dem Mittelkörper zugewandten Schaufelseiten (31, 41) der doppelflutigen Schaufelkränze (3, 4) zugeordnet sind.1. side channel ring compressor, in which the impeller hub is provided with blade rings, to which ring channels are assigned in the housing and in which a divided middle body is provided between the blade rings, characterized in that the middle body (6) additionally with ring channels (61, 62) is provided which are assigned to the blade sides (31, 41) of the double-flow blade rings (3, 4) facing the central body. 2. Seitenkanal-Ringverdichter nach Anspruch 1, dadurch gekennzeichnet , daß die Schaufelkränze (3, 4) symmetrisch zur Laufradnabe (2) angeordnet sind (Fig. 1).2. Side channel ring compressor according to claim 1, characterized in that the blade rings (3, 4) are arranged symmetrically to the impeller hub (2) (Fig. 1). 3. Seitenkanal-Ringverdichter nach Anspruch 1, dadurch gekennzeichnet , daß zusätzlich auf der gleichen Laufradnabe (2) weitere Schaufelkränze (7) angeordnet sind (Fig. 2).3. Side channel ring compressor according to claim 1, characterized in that in addition on the same impeller hub (2) further blade rings (7) are arranged (Fig. 2). 4. Seitenkanal-Ringverdichter nach Anspruch 1, dadurch gekennzeichnet , daß die Schaufelkränze (3, 4) auf einer Seite der Nabe (2) angeordnet sind und den zum Antrieb dienenden Motor (11) topfartig überdecken (Fig. 3).4. Side channel ring compressor according to claim 1, characterized in that the blade rings (3, 4) are arranged on one side of the hub (2) and cover the motor (11) used for driving (Fig. 3). 5. Seitenkanal-Ringverdichter nach Anspruch 4, dadurch gekennzeichnet , daß die Schaufelkränze (3, 4) auf einem Außenläufermotor befestigt sind.5. Side channel ring compressor according to claim 4, characterized in that the blade rings (3, 4) are attached to an external rotor motor. 6. Seitenkanal-Ringverdichter nach Anspruch 1, dadurch gekennzeichnet , daß zwischen Schaufelkränzen (3, 4) und Mittelteil (6) radiale Dichtungen (33, 63) vorgesehen sind (Fig. 4).6. Side channel ring compressor according to claim 1, characterized in that between the blade rings (3, 4) and the central part (6) radial Seals (33, 63) are provided (Fig. 4). 7. Seitenkanal-Ringverdichter nach Anspruch 1, dadurch gekennzeichnet , daß den Schaufelkränzen (8, 9) in radialer Richtung mindestens zwei Ringkanäle auf jeder Seite zugeordnet sind (Fig. 5).7. Side channel ring compressor according to claim 1, characterized in that the blade rings (8, 9) in the radial direction are assigned to at least two ring channels on each side (Fig. 5).
EP19810108652 1980-11-13 1981-10-21 Regenerative compressor Expired EP0052251B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3042840 1980-11-13
DE19803042840 DE3042840C2 (en) 1980-11-13 1980-11-13 Side channel ring compressor

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EP0052251A1 true EP0052251A1 (en) 1982-05-26
EP0052251B1 EP0052251B1 (en) 1984-01-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0770781A1 (en) * 1992-04-29 1997-05-02 Varian Associates, Inc. Turbomolecular vacuum pumps
EP0805275A2 (en) * 1996-05-03 1997-11-05 The BOC Group plc Vacuum pumps

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10212505A1 (en) * 2002-03-20 2003-10-02 Siemens Ag Side channel pump for use in vehicle fuel tank has electric motor driving rotor sandwiched between two fixed housing parts with vanes in working chambers and labyrinth seals at rim
DE102004057991B4 (en) 2004-12-01 2018-03-29 Tni Medical Ag Housing shell, impeller and side channel blower
DE102017220623A1 (en) * 2017-11-17 2019-05-23 Robert Bosch Gmbh Side channel compressor for a fuel cell system for conveying and / or sealing a gaseous medium

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1893616A (en) * 1930-06-09 1933-01-10 Westco Pump Corp Pumping apparatus
DE872819C (en) * 1944-11-04 1953-04-09 Siemens Ag Ring compressor
US3560104A (en) * 1969-02-28 1971-02-02 Abas Beaucan Neale Two-stage,vortex-type centrifugal compressor or pump
DE1956013A1 (en) * 1969-11-07 1971-06-09 Rietschle Masch App Side channel blower
FR2110122A5 (en) * 1970-10-31 1972-05-26 Elektrische Gerate Gmbh
FR2216835A5 (en) * 1973-02-05 1974-08-30 Bertin & Cie

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE731085C (en) * 1939-12-19 1943-02-01 Siemens Ag Circulation pump without liquid ring for gases with cooled impeller
US3601507A (en) * 1969-08-27 1971-08-24 Rotron Inc Compact fluid compressor
DE2721233C2 (en) * 1977-05-11 1979-02-22 Siemens Ag, 1000 Berlin Und 8000 Muenchen Side channel compressor consisting of several compressor stages

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1893616A (en) * 1930-06-09 1933-01-10 Westco Pump Corp Pumping apparatus
DE872819C (en) * 1944-11-04 1953-04-09 Siemens Ag Ring compressor
US3560104A (en) * 1969-02-28 1971-02-02 Abas Beaucan Neale Two-stage,vortex-type centrifugal compressor or pump
DE1956013A1 (en) * 1969-11-07 1971-06-09 Rietschle Masch App Side channel blower
FR2110122A5 (en) * 1970-10-31 1972-05-26 Elektrische Gerate Gmbh
FR2216835A5 (en) * 1973-02-05 1974-08-30 Bertin & Cie

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0770781A1 (en) * 1992-04-29 1997-05-02 Varian Associates, Inc. Turbomolecular vacuum pumps
EP0805275A2 (en) * 1996-05-03 1997-11-05 The BOC Group plc Vacuum pumps
EP0805275A3 (en) * 1996-05-03 1998-07-29 The BOC Group plc Vacuum pumps

Also Published As

Publication number Publication date
DE3042840A1 (en) 1982-05-19
DE3042840C2 (en) 1984-06-07
EP0052251B1 (en) 1984-01-18

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