EP0756670B1 - Flüssigkeitsringgaspumpe - Google Patents

Flüssigkeitsringgaspumpe Download PDF

Info

Publication number
EP0756670B1
EP0756670B1 EP95917930A EP95917930A EP0756670B1 EP 0756670 B1 EP0756670 B1 EP 0756670B1 EP 95917930 A EP95917930 A EP 95917930A EP 95917930 A EP95917930 A EP 95917930A EP 0756670 B1 EP0756670 B1 EP 0756670B1
Authority
EP
European Patent Office
Prior art keywords
space
chamber
pressure chamber
hub
gas pump
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
Application number
EP95917930A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0756670A1 (de
Inventor
Klaus Domagalla
Udo Segebrecht
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
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
Publication of EP0756670A1 publication Critical patent/EP0756670A1/de
Application granted granted Critical
Publication of EP0756670B1 publication Critical patent/EP0756670B1/de
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
    • 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
    • F04C19/004—Details concerning the operating liquid, e.g. nature, separation, cooling, cleaning, control of the supply

Definitions

  • connection housing Sufficiently dimensioned channels are provided for this in the housing part that contains the pressure chamber and forms the connections and which is therefore referred to below as the connection housing.
  • This junction box the mechanical seal can also be used within a designated hub space included, which must be lubricated and cooled during operation. This happens in the prior art in that the fresh liquid is passed through the hub space or that a partial flow is branched off from the liquid ring, via the mechanical seal guided and fed back to the work area on the suction side (DE-U-7017341).
  • the invention is based, the Reduce fresh fluid requirements or simplify fluid management. she achieves this in that the circulating fluid for lubricating the mechanical seal is used by the connection for the return of the return liquid from the Pressure chamber is led into the work space via the hub space.
  • This has compared to those known pumps in which the mechanical seal by means of fresh liquid is lubricated, the advantage that the part used as a cooling flow in the pressure chamber located liquid reduces the fresh liquid requirement and cooling the Seal is not dependent on the constant fresh liquid supply. This can therefore be diminished and need not be maintained continuously.
  • the cooling by a specially for this is effected from the liquid ring branched off, this has the advantage of Simplification.
  • the management of the extension leads to the side of the pump containing the suction chamber has a largely horizontal course the extension, which is a good separation of what may still be included Gas fraction allows before reaching the hole from extension to Hub space leads.
  • the extension should in other words, to the side beyond the vertical diameter of the pump lead, preferably below the hub space, because in the low-lying area in the pressure chamber the gas content in the liquid is lower than in the higher one. Also has this Construction the advantage that it is very simple.
  • the function of the pressure chamber extension to calm the circulating fluid requires that the cross section of the pressure chamber extension is large compared to the cross section of the bore leading into the hub space or the cross section of the flow paths from the hub space into the work space to lead.
  • the shaft 1 of the pump is in a motor or bearing block, not shown overhung, which is flanged to the connection housing 2.
  • the Connection housing forms the suction port 3 and the pressure port 4, the connected to the suction chamber 5 and the pressure chamber 6 within the housing are. When installed horizontally, they are above each other through a wall 7 separated, which runs approximately vertically. Below they are through walls 8 or 9 limited. In the middle they are delimited by an annular wall 10 which includes a hub space 11 in which a mechanical seal 12 is housed.
  • a pressure chamber extension branches from the lower area of the pressure chamber 6 18 from which leads below the hub space 11 to the other side of the connection housing.
  • the other side is in this context understand the side from the pressure chamber side by the diameter is separated, which is determined by the wall 7, which in the upper region Separates the pressure chamber from the suction chamber. Instead, you can also use the vertical Diameter can be switched off, in the present example with the through the wall 7 has a certain diameter.
  • a bore 19 is in the Wall 10 is provided through which the circulating liquid from the pressure chamber 6 in can cross the hub space 11. It is expediently arranged that it is directed towards the area of the mechanical seal to be cooled, to intensify cooling there on the one hand and possibly on the other to rinse off adhering gas bubbles.
  • the circulating fluid After the circulating fluid has flowed through the hub space 11, it passes through the in the control disc 13 provided shaft bore on the end face 20 of the hub of the Impeller 17 and flows - mainly on the suction side - between this and the control disk 13 through into the work space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Gyroscopes (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Gas Separation By Absorption (AREA)
EP95917930A 1994-04-20 1995-04-18 Flüssigkeitsringgaspumpe Expired - Lifetime EP0756670B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9406597U DE9406597U1 (de) 1994-04-20 1994-04-20 Flüssigkeitsringgaspumpe
DE9406597U 1994-04-20
PCT/EP1995/001433 WO1995029340A1 (de) 1994-04-20 1995-04-18 Flüssigkeitsringgaspumpe

Publications (2)

Publication Number Publication Date
EP0756670A1 EP0756670A1 (de) 1997-02-05
EP0756670B1 true EP0756670B1 (de) 1998-11-04

Family

ID=6907612

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95917930A Expired - Lifetime EP0756670B1 (de) 1994-04-20 1995-04-18 Flüssigkeitsringgaspumpe

Country Status (15)

Country Link
US (1) US5735674A (zh)
EP (1) EP0756670B1 (zh)
JP (1) JP2736287B2 (zh)
CN (1) CN1062941C (zh)
AT (1) ATE173057T1 (zh)
AU (1) AU2406495A (zh)
CA (1) CA2187426C (zh)
CZ (1) CZ285858B6 (zh)
DE (2) DE9406597U1 (zh)
DK (1) DK0756670T3 (zh)
ES (1) ES2124547T3 (zh)
MY (1) MY114165A (zh)
SK (1) SK280349B6 (zh)
TW (1) TW265396B (zh)
WO (1) WO1995029340A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1274050A (zh) * 1999-05-14 2000-11-22 杨双来 高压气泵
FI126831B (fi) * 2010-04-14 2017-06-15 Evac Oy Nesterengaspumppu ja menetelmä nesterengaspumpun käyttämiseksi
US9689387B2 (en) * 2012-10-30 2017-06-27 Gardner Denver Nash, Llc Port plate of a flat sided liquid ring pump having a gas scavenge passage therein

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1668532A (en) * 1924-09-08 1928-05-01 W L Stewart Rotary machine
DE970813C (de) * 1942-11-07 1958-10-30 Schweizerische Lokomotiv Wasserringpumpe fuer gasfoermiges Foerdergut
CH230129A (de) * 1942-11-07 1943-12-15 Schweizerische Lokomotiv Flüssigkeitsringpumpe.
GB955091A (en) * 1959-07-07 1964-04-15 Cotton Ltd W Improvements in or relating to straight bar knitting machines
US3209987A (en) * 1961-02-20 1965-10-05 Nash Engineering Co Liquid ring pump
SE353580B (zh) * 1968-05-17 1973-02-05 Nash Engineering Co
DE2022104C3 (de) * 1969-05-09 1979-02-08 The Nash Engineering Co., Norwalk, Conn. (V.St.A.) Motorgetriebene Flüssigkeitsringpumpe
US3713749A (en) * 1970-09-30 1973-01-30 Nash Engineering Co Motor-driven pedestal-mounted pump assembly and method for manufacturing the same
DE2318538B2 (de) * 1973-04-12 1975-12-04 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verteiler für einen Flüssigkeitsringgasverdichter
US3894812A (en) * 1974-02-19 1975-07-15 Atlantic Fluidics Inc Liquid ring vacuum pump-compressor
US4498844A (en) * 1983-08-08 1985-02-12 The Nash Engineering Company Liquid ring pump with conical or cylindrical port member
US4755107A (en) * 1986-05-14 1988-07-05 Siemens Aktiengesellschaft Liquid-ring pump having additional openings in control disc for warm and cold liquid
DE3617344A1 (de) * 1986-05-23 1987-11-26 Siemens Ag Verfahren zur herstellung einer steuerscheibe bzw. eines steuerschildes fuer eine fluessigkeitsringmaschine fuer aggressivere medien
DE4118843A1 (de) * 1991-06-07 1993-02-11 Sihi Gmbh & Co Kg Fluessigkeitsringgaspumpe mit fliegend gelagertem fluegelrad
DE4229017C2 (de) * 1992-09-03 1995-05-24 Sihi Gmbh & Co Kg Flüssigkeitsringverdichter in Motorblock- oder Motorträgerausführung
DE4332275A1 (de) * 1993-09-23 1995-03-30 Sihi Gmbh & Co Kg Steuerscheibe für eine Flüssigkeitsringgaspumpe

Also Published As

Publication number Publication date
JP2736287B2 (ja) 1998-04-02
WO1995029340A1 (de) 1995-11-02
ATE173057T1 (de) 1998-11-15
CZ289696A3 (en) 1997-03-12
JPH09506151A (ja) 1997-06-17
EP0756670A1 (de) 1997-02-05
TW265396B (zh) 1995-12-11
DE9406597U1 (de) 1995-08-24
ES2124547T3 (es) 1999-02-01
CN1146233A (zh) 1997-03-26
SK130596A3 (en) 1997-06-04
CA2187426C (en) 2002-07-23
DE59504151D1 (de) 1998-12-10
DK0756670T3 (da) 1999-07-19
US5735674A (en) 1998-04-07
CN1062941C (zh) 2001-03-07
MY114165A (en) 2002-08-30
CA2187426A1 (en) 1995-11-02
AU2406495A (en) 1995-11-16
SK280349B6 (sk) 1999-12-10
CZ285858B6 (cs) 1999-11-17

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