DE576643C - Multi-stage centrifugal compressor - Google Patents
Multi-stage centrifugal compressorInfo
- Publication number
- DE576643C DE576643C DEG76458D DEG0076458D DE576643C DE 576643 C DE576643 C DE 576643C DE G76458 D DEG76458 D DE G76458D DE G0076458 D DEG0076458 D DE G0076458D DE 576643 C DE576643 C DE 576643C
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- low
- centrifugal compressor
- throttling
- stage
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
- F04D29/464—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps adjusting flow cross-section, otherwise than by using adjustable stator blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Mehrstufiger Kreiselverdichter Gemäß dem Hauptpatent wird eine Erniedrigung der Pumpgrenze bei einer Verdichteranlage, die aus einem doppelseitig ansaugenden Niederdruckteil und einem dahüitergeschalteten Hochdruckteil besteht, dadurch erreicht, daß man die eine parallel geschaltete Stufengruppe des Niederdruckverdichters abschaltet.Multistage Centrifugal Compressor According to the main patent, there is a degradation the surge limit in a compressor system that consists of a double-sided intake Consists of a low-pressure part and a high-pressure part connected to the circuit, thereby achieving that one switches off the one parallel group of stages of the low-pressure compressor.
Nun kann es aber in gewissen Betriebsfällen erwünscht sein, die Pumpgr enze noch weiter herabzusetzen. Dies wird gemäß der Erfindung dadurch erreicht, daß durch eine in der Verbindungsleitung zwischen dem Niederdruck- und dem Hochdruckteil oder unmittelbar vor dem Hochdruckteil oder in dem Hochdruckgehäuse selbstangeordnete Drosselvorrichtung der Durchströmquerschnitt mehr oder weniger verengt wird.In certain operating cases, however, it may be desirable to use the pump size reduce enze even further. According to the invention, this is achieved by that by one in the connecting line between the low-pressure and the high-pressure part or directly in front of the high pressure part or in the high pressure housing itself Throttle device, the flow cross-section is more or less narrowed.
Bei Kreiselverdichtern ist es an sich bekannt, die Saugleitung mit einer Drosselvorrichtung zur Verminderung der Saugspannung oder zum Abschalten eines Verdichterteils auszustatten.In centrifugal compressors, it is known per se to use the suction line a throttle device to reduce the suction voltage or to switch off a To equip the compressor part.
Die Erfindung liegt darin, daß die Drosselung des Hochdruckteils bei einem Verdichter gemäß dem Hauptpatent mit abschaltbarem Niederdruckteil Anwendung findet.The invention is that the throttling of the high pressure part a compressor according to the main patent with a low-pressure part that can be switched off finds.
Die zusätzliche Drosselvorrichtung kann in bekannter Weise vom Druck des Fördermittels selbsttätig gesteuert werden. Die Drosselung innerhalb des Hochdruckgehäuses kann auch durch Verengung der Leitkanäle mit Hilfe von drehbaren Leitschaufeln oder durch Verengung der Laufradeintrittsöffnung mittels eines Schiebers erfolgen.The additional throttle device can in a known manner from the pressure of the conveyor can be controlled automatically. The throttling inside the high pressure housing can also be achieved by narrowing the guide channels with the help of rotating guide vanes or be done by narrowing the impeller inlet opening by means of a slide.
In der Zeichnung ist eine Verdichteranlage gemäß der Erfindung in vereinfachter Darstellung veranschaulicht.In the drawing, a compressor system according to the invention is shown in FIG simplified representation illustrated.
Die Anlage besteht aus dem Nieder druckverdichter N und dem Hochdruckverdichter H, die beide durch die Leitung 7 verbunden sind. Der Niederdruckverdichter besteht aus den beiden Niederdruckhälften r, 2, von denen die eine von der Förderung abzusperren ist, um die Pumpgrenze herabzusetzen. Um die Pumpgrenze noch weiter herabsetzen zu können, ist vor dem Hochdruckgehäuse ein Drosselventil 2 t in der Leitung 7 angeordnet. Dieses Ventil kann, -,vie an sich bekannt, vom Druck des Fördermittels selbsttätig gesteuert werden.The system consists of the low pressure compressor N and the high pressure compressor H, both of which are connected by line 7. The low pressure compressor exists from the two low-pressure halves r, 2, one of which is to be shut off from the promotion is to lower the surge line. Lower the surge line even further To be able to, a throttle valve 2 t is arranged in the line 7 in front of the high pressure housing. This valve can, as is known per se, automatically from the pressure of the conveying means being controlled.
Die Drosseleinrichtung kann auch in das Hochdruckgehäuse H hineinverlegt_ sein und sich z. B. vor der Eintrittsöffnung des ersten Laufrades -befinden. Die Drosselung der Einströmöffnung des Laufrades erfolgt in diesem Fälle z. B. durch einen axial zu verschiebenden Ringschieber 22. Die Drosselung des Strömungsquerschnittes innerhalb des Hochdruckgehäuses kann auch durch Verengung der Leitkanäle erfolgen. In diesem letzteren Falle finden vorteilhaft drehbare Leitschaufeln Anwendung.The throttle device can also be moved into the high-pressure housing H. be and z. B. in front of the inlet opening of the first impeller -be. the Throttling of the inflow opening of the impeller takes place in this case, for. B. by an axially displaceable ring slide 22. The throttling of the flow cross-section within the high-pressure housing can also be done by narrowing the guide channels. In this latter case, rotatable guide vanes are advantageously used.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG76458D DE576643C (en) | Multi-stage centrifugal compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG76458D DE576643C (en) | Multi-stage centrifugal compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE576643C true DE576643C (en) | 1933-05-27 |
Family
ID=7136235
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEG76458D Expired DE576643C (en) | Multi-stage centrifugal compressor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE576643C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2431398A (en) * | 1944-08-22 | 1947-11-25 | United Aircraft Corp | Supercharger with controllable inlet |
-
0
- DE DEG76458D patent/DE576643C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2431398A (en) * | 1944-08-22 | 1947-11-25 | United Aircraft Corp | Supercharger with controllable inlet |
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