EP0846866B1 - Verdichter für Gase mit Schwefelwasserstoffanteilen - Google Patents
Verdichter für Gase mit Schwefelwasserstoffanteilen Download PDFInfo
- Publication number
- EP0846866B1 EP0846866B1 EP97120808A EP97120808A EP0846866B1 EP 0846866 B1 EP0846866 B1 EP 0846866B1 EP 97120808 A EP97120808 A EP 97120808A EP 97120808 A EP97120808 A EP 97120808A EP 0846866 B1 EP0846866 B1 EP 0846866B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- impeller
- compressor
- wheel diameter
- flow direction
- impellers
- 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 - Lifetime
Links
- 239000007789 gas Substances 0.000 title claims description 45
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title claims description 21
- 229910000037 hydrogen sulfide Inorganic materials 0.000 title description 4
- 238000000034 method Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 description 8
- 230000007704 transition Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Images
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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage pumps
- F04D17/122—Multi-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
-
- 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
- F04D23/001—Pumps adapted for conveying materials or for handling specific elastic fluids
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
- F04D29/286—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors multi-stage rotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/50—Intrinsic material properties or characteristics
- F05D2300/501—Elasticity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/50—Intrinsic material properties or characteristics
- F05D2300/518—Ductility
Definitions
- the invention relates to a compressor, in particular a turbocompressor, for the gradual compression of process gases with increased hydrogen sulfide (H 2 S) fractions with the features of the preamble of claim 1.
- a compressor in particular a turbocompressor
- H 2 S hydrogen sulfide
- process gases are hydrocarbon-containing C or CH gases.
- turbo compressors are used, for example, in chemical plants or refineries, u. a. used in FCC processes.
- the gas composition is approximately in all wheels of the compressor equal.
- the pressure of the gas increases in each compressor wheel, the final pressure is reached after the last wheel.
- the directive applies to all wheels of a turbo compressor applied, although z. B. does not apply to the first wheel, so all wheels of the turbocompressor have a fixed maximum Peripheral speed of z. B. 260 m / s.
- DE-A-1 428 170 describes a multi-stage turbocompressor in which the wheel diameter of the impellers of the individual compressor stages decreases in the direction of the higher pressure. From DE-C-970 801 a multi-stage turbocompressor with three impellers each with the same wheel diameter and opposite flow direction is known, in which an intermediate cooling is provided behind the first three impellers. In both known compressors, no gas containing H 2 S is compressed.
- the process gas to be compressed enters the housing on the left, is compressed in the impellers on the left, first in the uncritical H 2 S range, then in the critical H 2 S range and then intercooled outside the compressor.
- the process gas then enters the compressor on the right of the housing, is compressed on the right in the critical H 2 S range and exits the compressor in the center.
- the number of impellers on the compressor shaft left and right is determined by the external process conditions. All impellers fall below the maximum permissible circumferential speed, which results from the reduced yield strength of the impeller material for H 2 S conditions.
- the object of the invention is therefore the aforementioned directive not applicable to all wheels of a compressor as before, if the terms of the directive apply to at least one wheel are met, but the directive only applies to the compressor wheels apply to which these conditions apply and not to the Use wheels for which these conditions do not apply.
- this directive is now e.g. B. for the first wheel of Turbo compressor, to which it does not apply, not used, so the peripheral speed of this compressor wheel can be greater be arranged on the compressor shaft than that of the others Impellers (i.e. greater than 260 m / s). This can vary depending further boundary conditions of the compression process according to the invention to reduce the size of the compressor and lead to a reduction in the number of compressor wheels.
- the gas inlet side faces the first Compressor pressure level less than one compressor impeller the second pressure stage after cooling and reversing the Flow direction.
- the peripheral speed can be increased because the yield strength of the impeller material of the first wheel of the first pressure stage does not have to be reduced to the H 2 S limit.
- the peripheral speed is increased by increasing the wheel diameter at the same speed.
- the two wheels of the first pressure stage lead to the same pressure increase as the three wheels of the second pressure stage.
- the wheels of the second pressure stage in the critical H 2 S area remain unchanged.
- a compressor with the same flow direction as the one to be compressed Process gases and created without external intermediate cooling.
- the first impeller of the first pressure stage ie the impeller in the H 2 S noncritical range
- the first impeller of the first pressure stage can be designed with or without a cover disk, while all other impellers can a cover plate must be equipped.
- Fig. 1 shows a section through a process gas compressor with housing (5) according to the prior art.
- the compressor is equipped with three impellers (2) with a cover disc (4) arranged on the left and three on the right on the shaft (1).
- the transition from non-critical H 2 S region of the H 2 S critical region is based on the output of the first links on the shaft (1) arranged impeller (2).
- the process gas to be compressed containing H 2 S enters at the gas inlet (7) of the first stage, is compressed in the wheels (2) on the left side of the process gas compressor, then cooled in a cooling device (6) or heat exchanger outside the compressor.
- the process gas enters the compressor at the housing (5) on the right at the second gas inlet stage (8), is compressed in a flow direction to the left and exits the compressor at the gas outlet (9).
- the number of impellers (2) left and right is determined by the external process conditions.
- Fig. 2 shows a section through an inventive Process gas compressor, in its housing (5) a shaft (1) two impellers (3) and (2) with cover disks (4) with the right flow direction (7) and after cooling (6) three impellers (2) with cover disks (4) are arranged with the left flow direction (8).
- the pre-compressed process gas then becomes one Cooling (6) fed before it to the second gas entry stage (8) back into the wheels (2) of the Process gas compressor enters and this at the gas outlet (9) leaves.
- the circumferential speed of this wheel (3) can be increased by increasing the diameter, because the yield strength of the impeller material of this impeller (3) does not have to be on the H 2 S Limit can be lowered.
- Fig. 3 shows a section through an inventive Process gas compressor on the same scale as Fig. 2 and with the same compressor performance.
- Impeller (3) and (2) have one size reduced wheel diameter and the housing (5) similarly a size smaller.
- Impeller (3) is at this example without cover plate (4), the impellers (2) are with cover plate (4) in every flow direction executed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
- Fig. 1
- einen Schnitt durch einen Prozeßgasverdichter nach dem Stand der Technik,
- Fig. 2
- einen Schnitt durch einen erfindungsgemäßen Prozeßgasverdichter,
- Fig. 3
- einen Schnitt durch einen erfindungsgemäßen Prozeßgasverdichter mit den gleichen Prozeßdaten wie der Verdichter nach Fig. 2.
- 1
- Welle
- 2
- Laufrad kleineren Durchmessers
- 3
- Laufrad größeren Durchmessers
- 4
- Deckscheibe
- 5
- Gehäuse
- 6
- Kühlung
- 7
- Gaseintritt, rechte Strömungsrichtung
- 8
- Gaseintritt, linke Strömungsrichtung
- 9
- Gasaustritt
Claims (8)
- Verdichter, insbesondere Turboverdichter, zum stufenweisen Verdichten von Prozeßgasen mit erhöhten Schwefelwasserstoff-(H2S)-Anteilen zunächst in einem H2S-unkritischen Bereich und oberhalb einer aus Druck des Gases und Schwefelwasserstoffkonzentration im Gas festgelegten Grenzlinie in-einem H2S-kritischen Bereich, wobei der Verdichter mindestens ein Laufrad (3) im H2S-unkritischen Bereich und mindestens ein Laufrad (2) im H2S-kritischen Bereich aufweist, dadurch gekennzeichnet, daß der Raddurchmesser des im H2S-unkritischen Bereich vorgesehenen Laufrades (3) bei gleicher Drehzahl erhöht und die Streckgrenze des Laufradwerkstoffes dieses Laufrades (3) nicht auf den H2S-kritischen Grenzwert abgesenkt ist und daß das im H2S-kritischen Bereich vorgesehene Laufrad (2) einen gegenüber dem im H2S-unkritischen Bereich vorgesehenen Laufrad (3) kleineren Raddurchmesser und einen Laufradwerkstoff mit abgesenkter Streckgrenze aufweist.
- Verdichter nach Anspruch 1, dadurch gekennzeichnet, daß der Verdichter mehrere Laufräder (2, 3) aufweist, die von den Prozeßgasen ausgehend von dem Gaseintritt in entgegengesetzten Strömungsrichtungen nach links oder nach rechts durchströmt sind, daß mindestens ein Laufrad (3) größeren Durchmessers und mit einem Laufradwerkstoff mit einer nicht auf den H2S-kritischen Grenzwert abgesenkten Streckgrenze im H2S-unkritischen Bereich mit einer nach rechts gerichteten Strömungsrichtung (7) vorgesehen ist und daß jeweils mindestens ein Laufrad (2) kleineren Raddurchmessers und mit einen Laufradwerkstoff mit abgesenkter Streckgrenze im H2S-kritischen Bereich mit einer nach rechts gerichteten Strömungsrichtung (7) und nach einer externen Zwischenkühlung im H2S-kritischen Bereich mit einer nach links gerichteten Strömungsrichtung (8) vorgesehen sind.
- Verdichter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß alle Laufräder (2, 3) mit einer Deckscheibe (4) versehen sind.
- Verdichter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das im H2S-unkritischen Bereich vorgesehene Laufrad (3) größeren Raddurchmessers auf einer Verdichterwelle (1) ohne Deckscheibe (4) angeordnet ist.
- Verdichter nach Anspruch 2, dadurch gekennzeichnet, daß auf der Verdichterwelle (1) ein Laufrad (3) größeren Raddurchmessers und ein Laufrad (2) kleineren Raddurchmessers mit rechter Strömungsrichtung (7) und drei oder zwei Laufräder (2) kleineren Raddurchmessers mit linker Strömungsrichtung (8) angeordnet sind.
- Verdichter nach Anspruch 2, dadurch gekennzeichnet, daß auf der Verdichterwelle (1) zwei Laufräder (3) größeren Raddurchmessers mit rechter Strömungsrichtung (7) und zwei oder drei Laufräder (2) kleineren Raddurchmessers mit linker Strömungsrichtung (8) angeordnet sind.
- Verdichter nach Anspruch 2, dadurch gekennzeichnet, daß auf der Verdichterwelle (1) ein Laufrad (3) größeren Raddurchmessers und zwei Laufräder (2) kleineren Raddurchmessers mit rechter Strömungsrichtung (7) und drei oder vier Laufräder (2) kleineren Raddurchmessers mit linker Strömungsrichtung (8) angeordnet sind.
- Verdichter nach Anspruch 2, dadurch gekennzeichnet, daß auf der Verdichterwelle (1) zwei Laufräder (3) größeren Raddurchmessers und ein Laufrad (2) kleineren Raddurchmessers mit rechter Strömungsrichtung (7) und drei oder vier Laufräder kleineren Raddurchmessers mit linker Strömungsrichtung (8) angeordnet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19650910 | 1996-12-07 | ||
DE19650910A DE19650910C1 (de) | 1996-12-07 | 1996-12-07 | Verdichter für Gase mit Schwefelwasserstoffanteilen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0846866A2 EP0846866A2 (de) | 1998-06-10 |
EP0846866A3 EP0846866A3 (de) | 1999-03-31 |
EP0846866B1 true EP0846866B1 (de) | 2003-02-26 |
Family
ID=7813995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97120808A Expired - Lifetime EP0846866B1 (de) | 1996-12-07 | 1997-11-27 | Verdichter für Gase mit Schwefelwasserstoffanteilen |
Country Status (4)
Country | Link |
---|---|
US (1) | US6174131B1 (de) |
EP (1) | EP0846866B1 (de) |
JP (1) | JP3712028B2 (de) |
DE (2) | DE19650910C1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2454188B (en) * | 2007-10-30 | 2010-09-29 | Richard Julius Gozdawa | Gas compressor |
US9316228B2 (en) * | 2009-03-24 | 2016-04-19 | Concepts Nrec, Llc | High-flow-capacity centrifugal hydrogen gas compression systems, methods and components therefor |
US20110315230A1 (en) * | 2010-06-29 | 2011-12-29 | General Electric Company | Method and apparatus for acid gas compression |
EP2640988B1 (de) * | 2011-01-19 | 2014-10-29 | Siemens Aktiengesellschaft | Gleitlager für einen turbomaschinenrotor und turbomaschine mit dem gleitlager |
DE102011003632A1 (de) * | 2011-02-04 | 2012-08-09 | Siemens Aktiengesellschaft | Turboverdichterlaufrad und Verfahren zum Herstellen desselben |
DE102011121223A1 (de) * | 2011-12-15 | 2013-06-20 | Robert Bosch Gmbh | Turboverdichter |
ITFI20120125A1 (it) * | 2012-06-19 | 2013-12-20 | Nuovo Pignone Srl | "wet gas compressor and method" |
DE102014226195A1 (de) * | 2014-12-17 | 2016-06-23 | Siemens Aktiengesellschaft | Radialturbofluidenergiemaschine |
JP2017101636A (ja) | 2015-12-04 | 2017-06-08 | 三菱重工業株式会社 | 遠心圧縮機 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1004332B (de) * | 1953-10-24 | 1957-03-14 | Maschf Augsburg Nuernberg Ag | Mehrstufiger Verdichterlaeufer radialer Bauart |
FR1113637A (fr) * | 1953-11-23 | 1956-04-03 | Sulzer Ag | Compresseur radial à plusieurs étages |
DE970801C (de) * | 1955-09-20 | 1958-10-30 | Gutehoffnungshuette Sterkrade | Verfahren und Anordnung zur Erhoehung der Wirtschaftlichkeit mehrstufiger Turbokompressoren |
DE1428170B2 (de) * | 1963-04-16 | 1972-01-27 | Gutehoffnungshutte Sterkrade AG, 4200 Oberhausen | Laeufer fuer einen mehrstufigen radialverdichter |
US3802795A (en) * | 1972-04-19 | 1974-04-09 | Worthington Cei | Multi-stage centrifugal compressor |
US3902823A (en) * | 1972-04-24 | 1975-09-02 | Hitachi Ltd | Impeller for gas-handling apparatus |
-
1996
- 1996-12-07 DE DE19650910A patent/DE19650910C1/de not_active Expired - Fee Related
-
1997
- 1997-11-27 EP EP97120808A patent/EP0846866B1/de not_active Expired - Lifetime
- 1997-11-27 DE DE59709388T patent/DE59709388D1/de not_active Expired - Fee Related
- 1997-12-01 JP JP36422597A patent/JP3712028B2/ja not_active Expired - Fee Related
- 1997-12-05 US US08/985,764 patent/US6174131B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE19650910C1 (de) | 1998-01-08 |
EP0846866A3 (de) | 1999-03-31 |
US6174131B1 (en) | 2001-01-16 |
EP0846866A2 (de) | 1998-06-10 |
JPH10184585A (ja) | 1998-07-14 |
JP3712028B2 (ja) | 2005-11-02 |
DE59709388D1 (de) | 2003-04-03 |
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