EP1477681A1 - Pompe à gaz à anneau liquide - Google Patents

Pompe à gaz à anneau liquide Download PDF

Info

Publication number
EP1477681A1
EP1477681A1 EP03011218A EP03011218A EP1477681A1 EP 1477681 A1 EP1477681 A1 EP 1477681A1 EP 03011218 A EP03011218 A EP 03011218A EP 03011218 A EP03011218 A EP 03011218A EP 1477681 A1 EP1477681 A1 EP 1477681A1
Authority
EP
European Patent Office
Prior art keywords
liquid ring
ring gas
gas pump
housing part
pump according
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
EP03011218A
Other languages
German (de)
English (en)
Other versions
EP1477681B1 (fr
Inventor
Bernd Wenckebach
Silke Heetsch
Alfons Dr. Jünemann
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
Sterling Fluid Systems GmbH
Original Assignee
Sterling Fluid Systems Germany GmbH
Sterling Fluid Systems 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, Sterling Fluid Systems GmbH filed Critical Sterling Fluid Systems Germany GmbH
Priority to DK03011218T priority Critical patent/DK1477681T3/da
Priority to DE50304745T priority patent/DE50304745D1/de
Priority to ES03011218T priority patent/ES2271420T3/es
Priority to PT03011218T priority patent/PT1477681E/pt
Priority to EP03011218A priority patent/EP1477681B1/fr
Priority to AT03011218T priority patent/ATE337489T1/de
Priority to TW093112243A priority patent/TWI273173B/zh
Priority to CNB2004800134706A priority patent/CN100482946C/zh
Priority to CA 2525480 priority patent/CA2525480C/fr
Priority to JP2006529736A priority patent/JP2006529015A/ja
Priority to US10/557,304 priority patent/US7563075B2/en
Priority to PCT/EP2004/004743 priority patent/WO2004102003A1/fr
Priority to MYPI20041818A priority patent/MY136591A/en
Publication of EP1477681A1 publication Critical patent/EP1477681A1/fr
Priority to NO20055277A priority patent/NO20055277L/no
Application granted granted Critical
Publication of EP1477681B1 publication Critical patent/EP1477681B1/fr
Priority to HK06111848.5A priority patent/HK1091251A1/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • 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
    • 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
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/21—Manufacture essentially without removing material by casting
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F04C2230/231—Manufacture essentially without removing material by permanently joining parts together by welding
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Definitions

  • the invention relates to a liquid ring gas pump with a first housing part, the one or two working spaces radially encloses, in each of which an eccentrically rotatably mounted Impeller is arranged, with second and third housing parts, which the first housing part and the pump on both sides complete and channels or chambers for supply and discharge of the extracted gas, and with which the work rooms control disks limiting in the axial direction
  • an impeller runs inside of an eccentrically circling liquid ring. While of the circulation the liquid ring is more or less submerged far into those formed between the vanes of the impeller Cells. This creates the free volume in the impeller cells alternately enlarged and reduced. In that one Circulation area in which the cell volume increases, the suction opening is located on the front of a control disc, through which the gas to be pumped is sucked into the cells becomes. In the end area of the circulation part in which there is the compression takes place, there is the pressure opening, through which the compressed gas enters the pressure chamber of the pump is pushed out.
  • Liquid ring gas pumps are used both as vacuum pumps where the conveying gas from a negative pressure to approximately atmospheric pressure is compressed, as well as used as a compressor in which the conveying gas from atmospheric pressure to overpressure is compressed.
  • Liquid ring gas pumps are available as single-stage and multi-stage versions. Single stage liquid ring gas pumps can due to the lower compression ratio as a vacuum pump in the upper rough vacuum or can be used as a compressor. Have two-stage machines its preferred area of application as a vacuum pump in the lower pressure range of the vacuum.
  • the work rooms in which the impeller rotates and the Liquid ring forms, are axially on one or both sides limited by a control disc.
  • multi-level Liquid ring pumps are these working spaces with an impeller and control discs in a corresponding number axially one behind the other arranged.
  • a liquid ring gas pump consists of one Large number of components used in pump assembly in axial Towards each other.
  • the contact surfaces of the individual components are simultaneously sealing surfaces of the machine from inside the pump to the environment. Close axially outwards to the control discs on the outer housing, in which channels or chambers for guiding the gas and liquid flows are included. Also between the control discs and the outer ones Housings are surfaces to be sealed again.
  • Such a conventional liquid ring gas pump has in single-stage design, four axial sealing surfaces and two-stage Construction even seven axial sealing surfaces.
  • the assembly is complex and the construction expensive and also has the disadvantage of a large number of surfaces to be sealed, in particular a greater risk of early leakage in the company.
  • the object of the invention is to create a Liquid ring gas pump of the type mentioned, in which the number of individual parts and in particular the number of Sealing surfaces to the outside is greatly reduced.
  • the solution according to the invention is that the first housing part is integrally formed, at least one of second connecting channel leading to the third housing part is provided and that to the adjacent housing part directed openings are designed so that the second and third housing parts can be configured identically are.
  • the invention is applicable for single and two-stage liquid ring gas pumps. If the liquid ring gas pump has two stages is advantageously formed, the first Housing part devices for receiving inner control disks between the two levels, in particular one Partition wall with at least one channel for passage of the extracted gas.
  • the invention Liquid ring gas pump only two to be sealed to the outside Connection points, namely in particular the connection points adjacent housing parts.
  • the construction of the pump is further simplified if the first Housing part connections for emptying and / or dirt emptying, Cavitation protection and ventilation on the suction side.
  • the housing parts can be designed as a cast construction.
  • Another one advantageous embodiment are the housing parts as Welded construction trained.
  • the construction according to the invention is characterized by a small number of components and few sealing surfaces to the outside. This creates significant advantages in manufacturing and Assembly process and the operational safety of the new Liquid ring gas pump. There is a particular advantage also that the second and third housing parts are identical can be of the same design, which is also the manufacturing cost and reduces the cost of storing spare parts.
  • FIG. 1 is a conventional liquid ring gas pump in cross section shown.
  • workrooms A are eccentric on a shaft B impellers C.
  • the work rooms A are partially with a liquid, in particular Water filled so that the cells are between the wings enlarge the impellers due to the liquid ring and reduce, thereby achieving the pumping effect.
  • Housing parts E limit the work spaces in the radial direction to the outside.
  • At both ends there are still housing parts F that have the required channels or chambers for the supply and discharge of the gas to be pumped exhibit.
  • housing parts F are in axial In the direction of very many components assembled in succession, with a seal at the connection points must be provided to the outside.
  • the two-stage pump according to the invention shown in Figure 2 is also has two impellers 1, which a shaft 11 attached and in the eccentric workrooms 16 rotate.
  • a connecting channel 13 is shown, the the suction opening 14 of the left (second) stage with the pressure opening 15 of the right (first) stage connects with what Partial flow of the conveying gas from the right (first) stage in the left (second) stage is headed.
  • the other one Opening of the middle control discs 3 is through the middle Wall 8 covered and therefore inoperative.
  • This middle wall 8 is part of a first housing part 5, which the working spaces 16 surrounds.
  • This first housing part 5 has another Connection channel 7 for the gas flows within the pump.
  • a second partial flow is created of the conveying gas from the pressure opening 17 of the right (first) Stage led to the suction opening 18 of the left (second) stage.
  • Other components are the left and to the right of the first housing part 1 arranged second and third housing parts 4, which can be identical.
  • the only outside sealing surfaces are the sealing surfaces between the first housing and the second housing 4. These sealing surfaces are designated 9.
  • At 19 are screws referred to, with which the housing parts 1, 4 to each other be attached.
  • connection channel 7 the task of printing on both sides of the Control discs to combine 2 emerging gas flows.
  • connection channel for the Suction side is also present, but not in Figure 3 shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • External Artificial Organs (AREA)
  • Gyroscopes (AREA)
  • Rotary Pumps (AREA)
EP03011218A 2003-05-16 2003-05-16 Pompe à gaz à anneau liquide Expired - Lifetime EP1477681B1 (fr)

Priority Applications (15)

Application Number Priority Date Filing Date Title
DK03011218T DK1477681T3 (da) 2003-05-16 2003-05-16 Væskeringsgaspumpe
DE50304745T DE50304745D1 (de) 2003-05-16 2003-05-16 Flüssigkeitsringgaspumpe
ES03011218T ES2271420T3 (es) 2003-05-16 2003-05-16 Bomba de gas hidrorrotativa.
PT03011218T PT1477681E (pt) 2003-05-16 2003-05-16 Bomba de gás com anel de líquido
EP03011218A EP1477681B1 (fr) 2003-05-16 2003-05-16 Pompe à gaz à anneau liquide
AT03011218T ATE337489T1 (de) 2003-05-16 2003-05-16 Flüssigkeitsringgaspumpe
TW093112243A TWI273173B (en) 2003-05-16 2004-04-30 Liquid ring gas pump
CA 2525480 CA2525480C (fr) 2003-05-16 2004-05-04 Pompe a gaz a anneau liquide
CNB2004800134706A CN100482946C (zh) 2003-05-16 2004-05-04 液环式气泵
JP2006529736A JP2006529015A (ja) 2003-05-16 2004-05-04 液封ポンプ
US10/557,304 US7563075B2 (en) 2003-05-16 2004-05-04 Liquid ring pump
PCT/EP2004/004743 WO2004102003A1 (fr) 2003-05-16 2004-05-04 Pompe a gaz a anneau liquide
MYPI20041818A MY136591A (en) 2003-05-16 2004-05-14 Liquid ring gas pump
NO20055277A NO20055277L (no) 2003-05-16 2005-11-09 Ringformet vaeskepumpe
HK06111848.5A HK1091251A1 (en) 2003-05-16 2006-10-26 Liquid ring pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03011218A EP1477681B1 (fr) 2003-05-16 2003-05-16 Pompe à gaz à anneau liquide

Publications (2)

Publication Number Publication Date
EP1477681A1 true EP1477681A1 (fr) 2004-11-17
EP1477681B1 EP1477681B1 (fr) 2006-08-23

Family

ID=33016918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03011218A Expired - Lifetime EP1477681B1 (fr) 2003-05-16 2003-05-16 Pompe à gaz à anneau liquide

Country Status (15)

Country Link
US (1) US7563075B2 (fr)
EP (1) EP1477681B1 (fr)
JP (1) JP2006529015A (fr)
CN (1) CN100482946C (fr)
AT (1) ATE337489T1 (fr)
CA (1) CA2525480C (fr)
DE (1) DE50304745D1 (fr)
DK (1) DK1477681T3 (fr)
ES (1) ES2271420T3 (fr)
HK (1) HK1091251A1 (fr)
MY (1) MY136591A (fr)
NO (1) NO20055277L (fr)
PT (1) PT1477681E (fr)
TW (1) TWI273173B (fr)
WO (1) WO2004102003A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2507089A (en) 2012-10-18 2014-04-23 Ccl Group Ltd An anchor having expanded sections in multi wired tendons
DE112015004060T5 (de) * 2014-09-04 2017-07-06 Scoprega S.P.A. Volumetrischer Verdichter
GB2571972B (en) * 2018-03-14 2021-01-20 Edwards Tech Vacuum Engineering Qingdao Co Ltd Method and apparatus related to servicing of liquid ring pumps

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1662250A (en) * 1926-06-11 1928-03-13 Irving C Jennings Method and apparatus relating to motor-driven pumps
DE2714475A1 (de) * 1976-04-07 1977-10-20 Gen Signal Corp Fluessigkeitsringpumpe
JPS61167196A (ja) * 1985-08-21 1986-07-28 Nakamura Suikan:Kk １作動側気口型水リングポンプ
JPH05118285A (ja) * 1991-07-18 1993-05-14 Ebara Corp 液封式ポンプ
DE19758340A1 (de) * 1997-12-22 1999-07-08 Gardner Denver Wittig Gmbh Mehrflutige Flüssigkeitsringpumpe

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1699327A (en) * 1926-08-02 1929-01-15 Jr Augustus C Durdin Displacement apparatus
US2416538A (en) * 1944-11-04 1947-02-25 Arthur J Nelson Hydroturbine pump
DE1428243A1 (de) * 1962-10-17 1969-07-10 Siemen & Hinsch Gmbh Fluessigkeitsring-Gaspumpe
DE3111538A1 (de) * 1981-03-24 1982-10-21 Siemens AG, 1000 Berlin und 8000 München Fluessigkeitsringpumpe mit einer zwischen dem laufradgehaeuse und dem mit anschlussstutzen versehenen deckel angeordneten steuerscheibe
US4747752A (en) * 1987-04-20 1988-05-31 Somarakis, Inc. Sealing and dynamic operation of a liquid ring pump
EP0367845B1 (fr) * 1988-11-07 1991-12-18 Siemens Aktiengesellschaft Pompe à anneau liquide

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1662250A (en) * 1926-06-11 1928-03-13 Irving C Jennings Method and apparatus relating to motor-driven pumps
DE2714475A1 (de) * 1976-04-07 1977-10-20 Gen Signal Corp Fluessigkeitsringpumpe
JPS61167196A (ja) * 1985-08-21 1986-07-28 Nakamura Suikan:Kk １作動側気口型水リングポンプ
JPH05118285A (ja) * 1991-07-18 1993-05-14 Ebara Corp 液封式ポンプ
DE19758340A1 (de) * 1997-12-22 1999-07-08 Gardner Denver Wittig Gmbh Mehrflutige Flüssigkeitsringpumpe

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 375 (M - 545) 13 December 1986 (1986-12-13) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 486 (M - 1473) 3 September 1993 (1993-09-03) *

Also Published As

Publication number Publication date
MY136591A (en) 2008-10-31
DK1477681T3 (da) 2007-01-02
WO2004102003A1 (fr) 2004-11-25
CA2525480A1 (fr) 2004-11-25
TW200506214A (en) 2005-02-16
CN1791752A (zh) 2006-06-21
US7563075B2 (en) 2009-07-21
HK1091251A1 (en) 2007-01-12
DE50304745D1 (de) 2006-10-05
ES2271420T3 (es) 2007-04-16
EP1477681B1 (fr) 2006-08-23
US20070065298A1 (en) 2007-03-22
CA2525480C (fr) 2008-08-05
NO20055277L (no) 2005-12-02
NO20055277D0 (no) 2005-11-09
ATE337489T1 (de) 2006-09-15
PT1477681E (pt) 2006-12-29
TWI273173B (en) 2007-02-11
JP2006529015A (ja) 2006-12-28
CN100482946C (zh) 2009-04-29

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