DE1428161A1 - Multi-stage centrifugal compressor - Google Patents

Multi-stage centrifugal compressor

Info

Publication number
DE1428161A1
DE1428161A1 DE19621428161 DE1428161A DE1428161A1 DE 1428161 A1 DE1428161 A1 DE 1428161A1 DE 19621428161 DE19621428161 DE 19621428161 DE 1428161 A DE1428161 A DE 1428161A DE 1428161 A1 DE1428161 A1 DE 1428161A1
Authority
DE
Germany
Prior art keywords
compressor
centrifugal compressor
stage
stage centrifugal
guide vanes
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.)
Pending
Application number
DE19621428161
Other languages
German (de)
Inventor
Karlheinz Heyer
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.)
Gutehoffnungshutte Sterkrade AG
Original Assignee
Gutehoffnungshutte Sterkrade AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gutehoffnungshutte Sterkrade AG filed Critical Gutehoffnungshutte Sterkrade AG
Publication of DE1428161A1 publication Critical patent/DE1428161A1/en
Pending 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
    • F04D17/122Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
    • 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
    • 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
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44Fluid-guiding means, e.g. diffusers
    • F04D29/46Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps

Description

Mehrstufiger Radialverdichter Die Erfindung bezieht sich a uf einen mehrstufigen Radialverdichter. Dieser Verdichter hat vorzugsweise eine konstante Drehzahl. Die Erfindung besteht darin, dass der Verdichter ausser einer Eintrittsdralldrossel vor der ersten Stufe hinter mindestens einem Laufrad einen Kranz verstellbarer Austrittsleitschaufeln aufweist.Multi-stage centrifugal compressor The invention relates to a multistage centrifugal compressor. This compressor preferably has a constant Rotational speed. The invention consists in that the compressor, in addition to an inlet swirl throttle in front of the first stage behind at least one impeller a ring of adjustable outlet guide vanes having.

Es ist bekannt, derartige Verdichter entweder nur mit einer Eintrittsdralldrossel oder nur mit verstellbaren Austrittsleitschaufeln zu regeln. Dies cringt Nachteile mit sich. Ein Verdichter gemäss der Erfindung ist dagegen besser regelbar, wie nachstehend erläutert wird.It is known that such compressors either only have an inlet swirl throttle or to be regulated only with adjustable outlet guide vanes. This has disadvantages with himself. A compressor according to the invention, on the other hand, can be regulated better, as follows is explained.

Mit der Eintrittsdralldrassel, die strömungsmässig vor der ersten Stufe des Verdichters angeordnet ist, wird von der Vollastmenge bis zu einer mittleren Menge, nämlich bis etwa zur fumpgrenze, z.B. bis zu'55 % der Vallastmenge, geregelt. Die Austrittsleitschaufeln befirden sich dabei vorzugsweise in Vollaferistellung. Für den Bereich von der Pumpgrenze ab zu noch kleineren Mengen hin wird die Dralldrossel vorzugsweise in Vollolfenstellung und werden die Austrittsleitschaufeln in Teil- _ offenstellung gebracht. In diesem Bereich wird dann nur mit Austrittsleitschaufeln geregelt. Umgekehrt gilt Entsprechendes. -- Solche verstellbaren Austrittsleitechaufeln können bei -mehrstufigen Radialverdichtern hinter jeder Stufe oder' nur hintereinigen Stufen, z.B. hinter der ersten, dritten, fünften usw. Stufe,vorgesehen sein. - .With the inlet swirl, the one in front of the first in terms of flow Stage of the compressor is arranged, is from the full load to a medium Volume, namely up to about the pump limit, e.g. up to 55% of the vallast volume. The outlet guide vanes are preferably in the fully open position. The swirl throttle is used for the area from the surge limit to even smaller quantities preferably in full position and the outlet guide vanes are in partial _ Open position brought. In this area only outlet guide vanes are used regulated. The same applies vice versa. - Such adjustable Outlet guide vanes can be installed behind each stage in multi-stage centrifugal compressors or 'only a series of stages, e.g. behind the first, third, fifth, etc. stage be. -.

In der Zeichnung sind in Fig. 1 als Ausführungsbeispiel die drei ersten Stufen eines mehr stufigen Verdichters gemäss der Erfindung schematisch dargestellt: Der wlterhalb der Verdichterwelle 10 befindliche Teil des Verdichters ist, da Symmetrie vorliegt, weggelassen.In the drawing, the first three are shown in FIG. 1 as an exemplary embodiment Stages of a multi-stage compressor according to the invention are shown schematically: The part of the compressor located outside of the compressor shaft 10 is due to symmetry present, omitted.

In Fig. 2 ist das Druck (p)-1vIengen, (V)-Diagramrn eines derartigen Verdichters dargestellt, d.h.-die Drehzahllinie (n = const) für den Fall-, dass die Eintrittsdralldrossel und sämtliche Austrittsleitschaufeln sich in Volloffanatellung befinden: -Der Verdichter weist eine Eintrittädralldrossel 11, also auf dem ganzen.Umfang verteilt angeordnete verstellbare Zeitschaufeln auf, die um je eine wellenparallele Achse drehbar sind. Auf der Welle 10 sitzen fest sämtliche Taufräder mit den Taufschaufeln 12. Jedem Laufrad strömungsmässig nachgeschaltet ist-ein Kranz von verstellbaren Austrittaleitschaufeln 13, die ebenfalls um je eine wellenparallele Achse, drehbar sind. Die Pfeile geben die Strömungsrichtung des zu verdichtenden Arbeitsmittels an.In Fig. 2, the pressure is (p) -1vIengen, (V) -diagram of such Compressor shown, i.e.-the speed line (n = const) for the case- that the inlet swirl throttle and all outlet guide vanes are fully open are located: -The compressor has an inlet wheel throttle 11, i.e. over the entire circumference adjustable time scoops arranged in a distributed manner, each around a wave-parallel Axis are rotatable. All the baptismal wheels with the baffles are firmly seated on the shaft 10 12. Downstream of each impeller in terms of flow is a ring of adjustable ones Ausittaleitschaufeln 13, which are also rotatable about an axis parallel to the shaft are. The arrows indicate the direction of flow of the working medium to be compressed at.

.Die Pumpgrenzlinie ist mit G bezeichnet. Der Verdichter ist von der Vollastmenge (100 %) über die Pumpgrarizlinie G hinweg bis zu kleinen Teillastmengen hin gut regelbar. -Z.B. kann jetzt-bei allen Fördermengen V ein etwa konstan- ter Enddruck des Yerdichtersp coust) bei konatanter Drehzahl des Verdichters gefahren werden. Dazu wird, - wenn man von V = 1004 ä her kommt, die Eintrittadrall- drossel 11 von yolloffenstellung inTeiloffenstellungen gedreht. Etwa bei V = 55 % wird sie wieder vorzugs- weise in Volloffenstellung gebracht, wobei etwa gleich- zeitig sämtliche verstellbaren Austrittsleitschaufeln 13 in Teiloffenstellungen gedreht werden. Indem Bereich zwischen der Pumpgrenzlinie G und dem gestric''ielt gezeichneten Teil der Drehzahlkennlinie wird mit die- sen Austrittsleitschaufeln 13 geregelt. The surge line is denoted by G. The compressor can be easily regulated from the full load quantity (100%) across the pump line G to small partial load quantities. -ZB can now -with all delivery rates V an approximately constant ter final pressure of the Yerdichtersp coust) with Konatanter Speed of the compressor. In addition, - if one comes from V = 1004 closer, the entry helix Throttle 11 from full open position to partially open position turned. At around V = 55% it is preferred again wisely brought into the fully open position, with approximately the same early all adjustable outlet guide vanes 13 be rotated in partially open positions. In that area between the surge line G and the knitted drawn part of the speed characteristic is sen outlet guide vanes 13 regulated.

Claims (1)

Patentanspruch: Mehrstufiger Radialverdichter, dadurch gekennzeichnet, dass er ausser einer Eintrittsdralldrossel (11) vor der ersten S+tufe hinter snindestens einem ?.äufrad (12) einen oder jeweils einen Kranz von verstellbaren Aust rittsleitschaufeln (13) aufweist.Claim: Multi-stage centrifugal compressor, characterized in that that apart from an inlet swirl throttle (11) before the first S + stage, it is at least behind an impeller (12), one or a ring of adjustable Aus rittsleitschaufeln (13).
DE19621428161 1962-07-24 1962-07-24 Multi-stage centrifugal compressor Pending DE1428161A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0042526 1962-07-24

Publications (1)

Publication Number Publication Date
DE1428161A1 true DE1428161A1 (en) 1969-01-30

Family

ID=7269915

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19621428161 Pending DE1428161A1 (en) 1962-07-24 1962-07-24 Multi-stage centrifugal compressor

Country Status (2)

Country Link
CH (1) CH401340A (en)
DE (1) DE1428161A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3029730A1 (en) * 1979-08-24 1981-03-12 Borg-Warner Corp., 60604 Chicago, Ill. TWO-STAGE CENTRIFUGAL COMPRESSOR.
EP0043017A1 (en) * 1980-06-25 1982-01-06 Atlas Copco Aktiebolag Guide vanes variation means for a radial compressor
WO2017150554A1 (en) * 2016-02-29 2017-09-08 三菱重工業株式会社 Centrifugal rotating machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3029730A1 (en) * 1979-08-24 1981-03-12 Borg-Warner Corp., 60604 Chicago, Ill. TWO-STAGE CENTRIFUGAL COMPRESSOR.
EP0043017A1 (en) * 1980-06-25 1982-01-06 Atlas Copco Aktiebolag Guide vanes variation means for a radial compressor
WO2017150554A1 (en) * 2016-02-29 2017-09-08 三菱重工業株式会社 Centrifugal rotating machine
EP3406914A4 (en) * 2016-02-29 2019-02-27 Mitsubishi Heavy Industries Compressor Corporation Centrifugal rotating machine
US10844863B2 (en) 2016-02-29 2020-11-24 Mitsubishi Heavy Industries Compressor Corporation Centrifugal rotary machine

Also Published As

Publication number Publication date
CH401340A (en) 1965-10-31

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