EP0344517A1 - Compresseur à canal latéral - Google Patents

Compresseur à canal latéral Download PDF

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Publication number
EP0344517A1
EP0344517A1 EP89108884A EP89108884A EP0344517A1 EP 0344517 A1 EP0344517 A1 EP 0344517A1 EP 89108884 A EP89108884 A EP 89108884A EP 89108884 A EP89108884 A EP 89108884A EP 0344517 A1 EP0344517 A1 EP 0344517A1
Authority
EP
European Patent Office
Prior art keywords
side channel
compressor
injection nozzle
channel compressor
cooling liquid
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.)
Granted
Application number
EP89108884A
Other languages
German (de)
English (en)
Other versions
EP0344517B1 (fr
Inventor
Siegfried Dipl.-Ing. Schönwald
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0344517A1 publication Critical patent/EP0344517A1/fr
Application granted granted Critical
Publication of EP0344517B1 publication Critical patent/EP0344517B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F04D23/008—Regenerative 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/5846—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling by injection

Definitions

  • the invention relates to a side channel compressor, with an impeller having conveying blades and with a device for introducing a cooling liquid into the conveying path of the compressor.
  • the object of the invention is to introduce the coolant into the conveying path in a side channel compressor of the type described in the introduction in such a way that damage to the impeller blades of the impeller by liquid drops is largely avoided.
  • the object is achieved according to the invention in that at least one injection nozzle for the cooling liquid is provided on the part of the compressor housing which forms the side channel, the injection nozzle being directed into the blade-free side channel.
  • the injection nozzle ensures that the cooling liquid already mixes with the gas in the side channel and flows together with it from the side into the space between the individual conveyor blades and thus hits the surface of the conveyor blades at most at a very shallow angle.
  • a more intensive mixing and as far as possible evaporation before entering the space between the conveyor blades can be achieved according to one embodiment of the invention in that the injection nozzle is inclined against the conveying direction of the side channel compressor. As a result, the cooling liquid is introduced against the direction of flow of the gas, which causes a strong swirl.
  • a less pronounced vortex formation with still good mixing of the cooling liquid and gas results from the fact that the injection nozzle is oriented inclined in the conveying direction of the side channel compressor in such a way that its injection direction corresponds as far as possible to the predominant flow direction of the gas conveyed by the side channel compressor at its installation location. Because of this directional coincidence, there is less pronounced vortex formation which adversely affects the delivery capacity of the side channel compressor.
  • a reduction in the intake volume of the side channel compressor can be avoided by arranging the injection nozzle or injectors approximately in the circumferential center of the compressor housing lying between the inlet and outlet openings.
  • the cooling liquid By introducing the cooling liquid at a point further away from the inlet opening, there are no effects on the intake behavior of the side channel compressor. This can be explained by the fact that the cooling caused by the injection of the coolant reduces the volume of the gas, i.e. results in a pressure reduction. Since the additional volume required for the injected coolant is largely compensated for by the reduction in volume of the gas, there is no significant change in pressure in the injection area which influences the intake behavior of the side channel compression.
  • FIG. 1 and 2 designate two side-channel compressors assembled to form a multi-stage compressor unit.
  • the outer housing parts 3 and 4 of the two side channel compressors 1 and 2 are supplemented by an intermediate housing part 5 to form complete compressor housings in which there are impellers 8 and 9 arranged on a common, rotatably mounted shaft 6 and provided with conveyor blades 7.
  • a side channel 10 is formed laterally to the conveyor blades 7 by a corresponding bulging of the housing parts 3, 4 and 5.
  • An injection nozzle 13 is arranged on the intermediate housing part 5 approximately in the middle of the circumference between the inlet opening 11 and the outlet opening 12 of the intermediate housing part 5. Via this injection nozzle 13, for example, water can be injected into the side channel 10, the evaporation of which cools the gas conveyed by the side channel compressor.
  • the injection nozzle 13 is mounted inclined on the intermediate housing part 5 in such a way that its injection direction corresponds as closely as possible to the direction of flow of the conveyed gas at the installation point of the injection nozzle 13.
  • This arrangement of the injection nozzle largely prevents a disturbance in the gas flow due to eddy formation.
  • the mixture of gas and cooling liquid then enters from the side into the spaces between the conveyor blades 7, so that a hard impact of the cooling liquid particles on the conveyor blades 7, which leads to cavitation damage, is largely excluded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP89108884A 1988-05-30 1989-05-17 Compresseur à canal latéral Expired - Lifetime EP0344517B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8807064U 1988-05-30
DE8807064U DE8807064U1 (de) 1988-05-30 1988-05-30 Seitenkanalverdichter

Publications (2)

Publication Number Publication Date
EP0344517A1 true EP0344517A1 (fr) 1989-12-06
EP0344517B1 EP0344517B1 (fr) 1992-05-20

Family

ID=6824548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89108884A Expired - Lifetime EP0344517B1 (fr) 1988-05-30 1989-05-17 Compresseur à canal latéral

Country Status (4)

Country Link
US (1) US4907945A (fr)
EP (1) EP0344517B1 (fr)
JP (1) JPH0746796Y2 (fr)
DE (2) DE8807064U1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9006172U1 (de) * 1990-05-31 1991-10-10 Siemens AG, 8000 München Seitenkanalverdichter
US5372475A (en) * 1990-08-10 1994-12-13 Nippondenso Co., Ltd. Fuel pump
JP2917563B2 (ja) * 1991-04-15 1999-07-12 株式会社デンソー 渦流式ポンプ
US6174128B1 (en) 1999-02-08 2001-01-16 Ford Global Technologies, Inc. Impeller for electric automotive fuel pump
US6233937B1 (en) 2000-09-20 2001-05-22 Siemens Westinghouse Power Corporation Cooling spray application to a turbine and exhaust region of a steam turbine
JP2010509527A (ja) * 2006-11-06 2010-03-25 ボーグワーナー・インコーポレーテッド 二重入口再生空気ポンプ
US9249806B2 (en) 2011-02-04 2016-02-02 Ti Group Automotive Systems, L.L.C. Impeller and fluid pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB153603A (en) * 1919-11-10 1921-12-08 Escher Wyss Maschf Ag Improvements in a process for compressing vapour in multi-stage centrifugal compressors
US2786626A (en) * 1952-08-07 1957-03-26 Gulf Oil Corp Process for the compression of gases
DE2138383A1 (de) * 1971-07-31 1973-02-08 Siemens Ag Pumpenaggregat zur mehrstufigen verdichtung von gasen
DE2166847A1 (de) * 1971-07-31 1976-01-29 Siemens Ag Mehrstufige pumpenanordnung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191128731A (en) * 1911-12-20 1912-09-05 Richard James Wainwright Brown Improvements in and relating to Fluid Pressure Turbines.
US1400813A (en) * 1920-11-03 1921-12-20 Graemiger Benjamin Process of compressing vapor in multistage centrifugal compressors
US3233551A (en) * 1964-02-03 1966-02-08 Hitachi Ltd Westco pump
US3436916A (en) * 1967-10-02 1969-04-08 John Edward Becker Hydraulic couplings
US3663117A (en) * 1970-01-21 1972-05-16 Cornell Mfg Co Aeration pump
DE7715000U1 (de) * 1977-05-11 1977-08-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Mehrstufiger seitenkanalverdichter
US4695224A (en) * 1982-01-04 1987-09-22 General Electric Company Centrifugal compressor with injection of a vaporizable liquid

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB153603A (en) * 1919-11-10 1921-12-08 Escher Wyss Maschf Ag Improvements in a process for compressing vapour in multi-stage centrifugal compressors
US2786626A (en) * 1952-08-07 1957-03-26 Gulf Oil Corp Process for the compression of gases
DE2138383A1 (de) * 1971-07-31 1973-02-08 Siemens Ag Pumpenaggregat zur mehrstufigen verdichtung von gasen
DE2166847A1 (de) * 1971-07-31 1976-01-29 Siemens Ag Mehrstufige pumpenanordnung

Also Published As

Publication number Publication date
DE58901457D1 (de) 1992-06-25
JPH01174596U (fr) 1989-12-12
US4907945A (en) 1990-03-13
EP0344517B1 (fr) 1992-05-20
DE8807064U1 (de) 1989-09-28
JPH0746796Y2 (ja) 1995-10-25

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