DE503753C - Device for optional parallel and series connection of centrifugal compressors or blowers - Google Patents

Device for optional parallel and series connection of centrifugal compressors or blowers

Info

Publication number
DE503753C
DE503753C DEA57531D DEA0057531D DE503753C DE 503753 C DE503753 C DE 503753C DE A57531 D DEA57531 D DE A57531D DE A0057531 D DEA0057531 D DE A0057531D DE 503753 C DE503753 C DE 503753C
Authority
DE
Germany
Prior art keywords
wheels
series connection
centrifugal compressors
blowers
optional parallel
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.)
Expired
Application number
DEA57531D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
Publication date
Priority to DEA57531D priority Critical patent/DE503753C/en
Application granted granted Critical
Publication of DE503753C publication Critical patent/DE503753C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08Centrifugal pumps
    • F04D17/10Centrifugal pumps for compressing or evacuating
    • F04D17/12Multi-stage pumps
    • F04D17/14Multi-stage pumps with means for changing the flow-path through the stages, e.g. series-parallel, e.g. side-loads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08Centrifugal pumps
    • F04D17/10Centrifugal pumps for compressing or evacuating
    • F04D17/12Multi-stage pumps
    • F04D17/127Multi-stage pumps with radially spaced stages, e.g. for contrarotating type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/28Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
    • F04D29/286Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors multi-stage rotors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00Geometry
    • F05D2250/50Inlet or outlet
    • F05D2250/51Inlet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Vorrichtung zur wahlweisen Parallel- und Hintereinanderschaltung von Kreiselverdichtern bzw. -gebläsen Es ist bei Pumpen und Verdichtern bekannt, einzelne Räder oder Radgruppen parallel oder hintereinanderzuschalten. Meist sind die Umschaltorgane, wie Schieber, Rückschlagklappen o. dgl., in den Saug-, Druck-und Verbindungsleitungen der einzelnen Räder bzw. Radgruppen angeordnet, oder sie sind auch zum Teil unmittelbar in das. Gehäuse eingebaut, wobei besondere Umschaltkanäle vorgesehen sind.Device for the optional parallel and series connection of Centrifugal compressors or fans It is known for pumps and compressors, individual To switch wheels or wheel groups in parallel or one behind the other. Most of the time the switching organs are such as slides, non-return valves or the like, in the suction, pressure and connecting lines of the individual wheels or groups of wheels, or some of them are also direct Built into the housing, with special switching channels being provided.

Den Gegenstand der Erfindung bildet .eine besonders einfache Lösung zur beliebigen Parallel- oder Hintereinanderschaltung von Rädern bzw. Radgruppen eines zwei- oder mehrstufigen Kreiselverdichters bzw. -gebläses. Hiernach ist auf die bekannte Bauart von Kreiselverdichtern mit dicht nebeneinanderliegenden Rädern, deren Eintrittsöffnungen ich kreisringförmig überlagern, zurückgegriffen. Diese Bauart bezweckte bisher entweder die Verminderung der Radreibung oder mittels axial verschiebbaren Absperrorgans die zeitweise Absperrung eines der beiden Laufräder. Gemäß der Erfindung wird nun ein solches Absperrorgan derart als Umschaltorgan ausgebildet, daß bei dicht nebeneinanderliegenden Laufrädern mit sich kreisförmig überlagernden Eintrittsöffnungen die Laufräder wahlweise parallel oder hi.ntereinandergeschaltet werden können.The subject of the invention is a particularly simple solution for any parallel or series connection of wheels or groups of wheels a two- or multi-stage centrifugal compressor or fan. After that is on the well-known design of centrifugal compressors with closely spaced wheels, whose inlet openings I superimpose in a circular ring, drawn back. These Up to now, the aim of the design was either to reduce wheel friction or to use it axially sliding shut-off device temporarily shutting off one of the two impellers. According to the invention, such a shut-off device is now designed as a switching device, that when impellers are located close to one another with overlapping circular shapes Inlet openings the impellers can be connected in parallel or one behind the other can be.

In den Abb. i und 2 der Zeichnung ist eine beispielsweise Ausführungsform der Erfindung in Parallel- bzw. Hintereinanderschaltung der Laufräder veranschaulicht. Die beiden Räder i und 2, welche fliegend oder zwischen zwei Lagern angeordnet sein können, sind in bekannter Weise seitlich nebeneinandergelegt mit auf der gleichen Seite beginnenden, sich kreisringförmig überlagernden Eintrittsöffnungen. Der Druckraum 3 des einen Rades ist in bekannter Weise um die eigentliche Druckspirale ¢ herumgeführt, so daß sämtliche Luftwege, welche bei der Umschaltung gesteuert werden müssen, örtlich nahe beisammen und auf einem möglichst kleinen Durchmesser liegen, was ein einfaches Umschaltorgan 5 ergibt, das alle Funktionen des Umschaltens gleichzeitig erfüllt. Abb. i zeigt die Vorrichtung in der Stellung für parallel geschaltete und Abb. 2 für hinter-Pinandergeschaltete Räder. 6 ist der Saugstutzen und 7 der Druckstutzen des Verdichters bzw. Gebläses. Das Umstellorgan kann beispielsweise mit Antrieb 8 verstellt werden. An Stelle einer axialen Verstellung des Organs 5 könnte auch eine Verdrehung in Frage kommen.In Figs. I and 2 of the drawing there is an exemplary embodiment the invention illustrated in parallel or series connection of the wheels. The two wheels i and 2, which are cantilevered or arranged between two bearings can, are placed side by side in a known manner with on the same Side beginning, circular overlapping inlet openings. The printing room 3 of one wheel is guided around the actual pressure spiral ¢ in a known manner, so that all airways that have to be controlled during the switchover are local close together and on the smallest possible diameter, which is a simple one Switching element 5 results, which fulfills all the functions of switching at the same time. Fig. I shows the device in the position for connected in parallel and Fig. 2 for rear-mounted wheels. 6 is the suction port and 7 is the pressure port of the compressor or fan. The changeover element can, for example, have a drive 8 can be adjusted. Instead of an axial adjustment of the organ 5 could also a twist come into question.

Claims (1)

PATENTANSPRUCH: Vorrichtung zur wahlweisen Parallel-und Hintereinanderschaltung von Kreiselverdichtern bzw. -gebläsen mit mehreren Rädern oder Radgruppen, deren Eintrittsöffnungen nach derselben Seite gerichtet sind und sich kreisringförmig überlagern und von denen mindestens eine Eintrittsöffnung durch ein axial verschiebbares, zylindrisches Absperrorgan abschaltbar und mindestens einer der Druckräume zur Saugöffnung des anderen Rades bzw. der Radgruppe zurückgeführt ist, dadurch gekennzeichnet, daß das Absperrorgan als Umschaltorgan (5) in Verbindung mit der Zurückführungsleitung (3) derart ausgebildet ist, daß es in seinen Endstellungen entweder die Eintrittsöffnungen der Räder freigibt oder die Zurückführungsleitung mit der Saugöffnung verbindet.PATENT CLAIM: Device for optional parallel and series connection of centrifugal compressors or fans with several wheels or groups of wheels, their Inlet openings are directed towards the same side and are circular overlay and of which at least one inlet opening through an axially displaceable, cylindrical shut-off device and at least one of the pressure chambers to the suction opening of the other wheel or the wheel group is returned, characterized in that that the shut-off device as a switching device (5) in connection with the return line (3) is designed in such a way that it either has the inlet openings in its end positions releases the wheels or connects the return line to the suction opening.
DEA57531D Device for optional parallel and series connection of centrifugal compressors or blowers Expired DE503753C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA57531D DE503753C (en) Device for optional parallel and series connection of centrifugal compressors or blowers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA57531D DE503753C (en) Device for optional parallel and series connection of centrifugal compressors or blowers

Publications (1)

Publication Number Publication Date
DE503753C true DE503753C (en) 1930-07-24

Family

ID=6941136

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA57531D Expired DE503753C (en) Device for optional parallel and series connection of centrifugal compressors or blowers

Country Status (1)

Country Link
DE (1) DE503753C (en)

Similar Documents

Publication Publication Date Title
DE1044374B (en) Outlet grille for air and other means of flow
DE503753C (en) Device for optional parallel and series connection of centrifugal compressors or blowers
DE888207C (en) Self-priming pump
DE1503512B2 (en) Device to prevent pumping in a centrifugal compressor
DE579585C (en) Axial blower with several sets of blades on the impeller at different distances from its shaft axis
CH144384A (en) Multi-stage centrifugal compressor resp. -fan.
DE855363C (en) Self-priming circulation pump
CH116423A (en) Multi-stage centrifugal pump, especially for motorized fire engines.
DE559300C (en) Air valve for musical instruments
DE728617C (en) Device on a fan to reduce the noise generated by the vibrations of the air flow through interference effects
DE1528828A1 (en) Housing of a multistage centrifugal pump
DE576643C (en) Multi-stage centrifugal compressor
DE967139C (en) Adjustment device for the guide vanes of blowers
DE537690C (en) Storage of a motorized air moving unit accommodated in an outer housing, in particular for vacuum cleaners
DE340447C (en) Multi-stage centrifugal pump in which the stages can be switched individually or in groups, either in parallel or in series
DE1528826B2 (en)
AT101871B (en) Centrifugal pump.
DE869013C (en) Slide valve with slide that can be pivoted between two end positions, especially for compressed air brake lines in motor vehicles
DE1428055A1 (en) Centrifugal blower
DE460986C (en) Multi-stage centrifugal pump, in which switching stages consisting of at least one impeller each can be switched one behind the other or in parallel by means of a switching element arranged outside the circumference of the wheel body
DE662202C (en) Centrifugal pump
DE693138C (en) Automotive heating
DE716534C (en) Impeller compressor with a sealing circular fluid ring
DE572781C (en) Device to reduce the surge limit in centrifugal compressors
DE555067C (en) Centrifugal pump