EP1600638A1 - Pompe à anneau liquide à deux étages - Google Patents

Pompe à anneau liquide à deux étages Download PDF

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Publication number
EP1600638A1
EP1600638A1 EP04012597A EP04012597A EP1600638A1 EP 1600638 A1 EP1600638 A1 EP 1600638A1 EP 04012597 A EP04012597 A EP 04012597A EP 04012597 A EP04012597 A EP 04012597A EP 1600638 A1 EP1600638 A1 EP 1600638A1
Authority
EP
European Patent Office
Prior art keywords
stage
working space
liquid ring
pump
housing
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.)
Withdrawn
Application number
EP04012597A
Other languages
German (de)
English (en)
Inventor
Ralph Reick
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.)
Sterling Fluid Systems Germany GmbH
Original Assignee
Sterling Fluid Systems Germany GmbH
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 Sterling Fluid Systems Germany GmbH filed Critical Sterling Fluid Systems Germany GmbH
Priority to EP04012597A priority Critical patent/EP1600638A1/fr
Publication of EP1600638A1 publication Critical patent/EP1600638A1/fr
Withdrawn legal-status Critical Current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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
    • F04C19/005—Details concerning the admission or discharge
    • F04C19/007—Port members in the form of side plates

Definitions

  • the invention relates to a two-stage liquid ring vacuum pump with a pump housing, which has a first working space and a second working space encased in which each one eccentric to the central axis of the working space and arranged rotationally fixed on a common shaft Impeller is located, with the work spaces of the first and the second stage with each other, as well as the working space the first stage with a suction nozzle and the working space the second stage with a pressure port through openings of Control discs are connected.
  • Liquid ring vacuum pumps are Verdrängerver emphasizer, in which an eccentrically arranged in a round housing impeller during rotation into and out of a liquid ring dive again. During one revolution of the impeller the gap volume between the individual increases Wings from zero to maximum and shrinks then back to zero.
  • the impeller cells have during the phase of volume increase via the suction port (suction slot) connection to the intake; there is the suction of the conveying gas.
  • suction port suction slot
  • the impeller cells During the phase of volume reduction will be first compressed the delivery gas and then over the pressure port (Pressure slot) and pushed out the discharge nozzle.
  • liquid ring vacuum pump Depending on the size and design of the printing openings may be different Compression ratios with the liquid ring vacuum pump will be realized. For low suction pressures or high compression ratios, it makes sense perform the liquid ring vacuum pump in two stages. That the gas flow is in the first stage of Suction pressure to an intermediate pressure and then in the second Stage from the intermediate pressure to the final pressure (Atmospheric pressure) compressed.
  • Two-stage liquid ring vacuum pumps stand out due to very good efficiencies and stable operating behavior especially at low suction pressures. They have proven in the most diverse applications outstanding.
  • the two-stage vacuum pumps are classically referred to as so-called Bearing carrier pumps executed.
  • the first and second stages arranged one behind the other; the first and second stage impellers become guided and driven by a shaft.
  • the gas flow has the liquid ring vacuum pump axially on both sides housing with the corresponding suction or Discharge nozzle.
  • the gas flow is thereby axially through the pump passed; from the suction housing via the first stage and second Stage to the pressure housing.
  • the drive is usually via a Electric motor, via the coupling with the pump shaft is connected.
  • the aim of the present invention is a two-stage To design a liquid ring vacuum pump, which is a very short length and with as few components executable and therefore very inexpensive and easy to produce is.
  • the solution according to the invention is that the vacuum housing, which includes suction nozzle and discharge nozzle, between the working space of the first stage and the working space the second stage is arranged.
  • the invention not only shortens the overall length. It can also be the same parts in several places Pump be used, for. B. the control discs, what the Complexity and manufacturing costs further reduced.
  • Fig. 1 shows a two-stage block design Liquid ring pump.
  • the case of the Liquid ring pump consists of a so-called vacuum housing 11, a flange housing 2, which is connected to the engine flanged, and a cover 6 together.
  • Vacuum housing 11 are a suction nozzle 4 and a discharge nozzle 8 arranged.
  • the vacuum housing 11 is in FIG. 4. shown as a single part. It can be seen that the Suction nozzle 4 opens into a suction chamber 17.
  • FIG. 2 shows a longitudinal section through the liquid ring pump. It can be seen that the suction chamber 17 by means of a first control disk 3 of a first cylindrical Working space 13, which is located in the flange 2, is disconnected. An inserted into the first control disk 3 Suction slot 15, shown in Figure 6, allows the connection of the suction chamber 17 and the first working space 13. In the first working space 13 is an eccentric arranged impeller 5, this is against rotation connected to the motor shaft 10.
  • the first working space 13 is again through the first control disk 3 of a so-called intermediate channel 19, the is in the vacuum housing 11, separated.
  • One in the first control disc 3 introduced pressure slot 16, in turn Fig. 6, enables the connection of the first working space 13 with the intermediate channel 19th
  • the lid 6 At the side facing away from the motor 12 side of the vacuum housing 11th is the lid 6, this encloses the second Working space 14.
  • the intermediate channel 19 is through a second Control disc 7 separated from the second working space 14.
  • the second control disk 7 also has a suction slot 15, this allows the connection from the intermediate channel 19th to the second working space 14.
  • the second working space 14 is through the second control disk 7 separated from the pressure chamber 18.
  • the pressure chamber 18 is located in the vacuum housing 11 and is connected to the discharge nozzle, see Fig. 5.
  • the second control disk 7 also has a pressure slot 15, this allows the connection from the second working space 14 to the pressure chamber 18th
  • the gas flows in the pump according to the invention are schematic shown in FIG.
  • the gas passes through the Suction nozzle 4 in the pump. From here it flows over the Suction chamber 17 through the first suction slot 15 in the first Working space 13.
  • the compressed in the working space 13 gas flows through the first pressure slot 16 in the intermediate channel 19.
  • the second suction slot 15 it enters the second working space 14, here the gas is compressed again and through the second pressure slot 16 in the pressure chamber 18 promoted.
  • the gas leaves the Pump.
  • FIG. shown The gas flows in a conventional pump are shown in FIG. shown.
  • the conventional Pump on a larger length, as the first Vacuum housing A occupies a space with the suction, the once again through the second vacuum housing B with the Pressure port N is taken.
  • the inventive Pump will collapse as first and second vacuum housings coincide this place only needed once.
  • a total of four control discs C, E, G and I may be required, of which possibly the second control disk E and third control disk G folded together could become. It is not possible with two Dispense control discs as in the pump according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP04012597A 2004-05-27 2004-05-27 Pompe à anneau liquide à deux étages Withdrawn EP1600638A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04012597A EP1600638A1 (fr) 2004-05-27 2004-05-27 Pompe à anneau liquide à deux étages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04012597A EP1600638A1 (fr) 2004-05-27 2004-05-27 Pompe à anneau liquide à deux étages

Publications (1)

Publication Number Publication Date
EP1600638A1 true EP1600638A1 (fr) 2005-11-30

Family

ID=34925154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04012597A Withdrawn EP1600638A1 (fr) 2004-05-27 2004-05-27 Pompe à anneau liquide à deux étages

Country Status (1)

Country Link
EP (1) EP1600638A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113898584A (zh) * 2021-11-10 2022-01-07 佛山市真空泵厂有限公司 立式液环真空泵

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB377476A (en) * 1931-09-01 1932-07-28 Drysdale & Co Ltd Improvements in air-pumps
DE969945C (de) * 1956-01-20 1958-07-31 Siemens Ag Mehrstufige Fluessigkeitsring-Gaspumpe mit Zwischengehaeuse
US4093397A (en) * 1976-04-15 1978-06-06 Lovelady Grady R High vacuum pump
JPS578389A (en) * 1980-06-19 1982-01-16 Nakamura Suikan:Kk One operation side air opening type water ring pump
DE4123938A1 (de) * 1991-07-19 1993-01-21 Friedrich Gugel Fluessigkeitsring-vakuumpumpe
DE20200839U1 (de) * 2002-01-21 2003-05-28 Speck Pumpenfabrik Walter Spec Zweistufige Flüssigkeitsringpumpe in Blockbauweise

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB377476A (en) * 1931-09-01 1932-07-28 Drysdale & Co Ltd Improvements in air-pumps
DE969945C (de) * 1956-01-20 1958-07-31 Siemens Ag Mehrstufige Fluessigkeitsring-Gaspumpe mit Zwischengehaeuse
US4093397A (en) * 1976-04-15 1978-06-06 Lovelady Grady R High vacuum pump
JPS578389A (en) * 1980-06-19 1982-01-16 Nakamura Suikan:Kk One operation side air opening type water ring pump
DE4123938A1 (de) * 1991-07-19 1993-01-21 Friedrich Gugel Fluessigkeitsring-vakuumpumpe
DE20200839U1 (de) * 2002-01-21 2003-05-28 Speck Pumpenfabrik Walter Spec Zweistufige Flüssigkeitsringpumpe in Blockbauweise

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 069 (M - 125) 30 April 1982 (1982-04-30) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113898584A (zh) * 2021-11-10 2022-01-07 佛山市真空泵厂有限公司 立式液环真空泵
CN113898584B (zh) * 2021-11-10 2023-08-29 佛山市真空泵厂有限公司 立式液环真空泵

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