EP0599163B1 - Machine à anneau liquide - Google Patents

Machine à anneau liquide Download PDF

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Publication number
EP0599163B1
EP0599163B1 EP93118405A EP93118405A EP0599163B1 EP 0599163 B1 EP0599163 B1 EP 0599163B1 EP 93118405 A EP93118405 A EP 93118405A EP 93118405 A EP93118405 A EP 93118405A EP 0599163 B1 EP0599163 B1 EP 0599163B1
Authority
EP
European Patent Office
Prior art keywords
liquid ring
ring machine
housing
eccentricity
machine 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.)
Expired - Lifetime
Application number
EP93118405A
Other languages
German (de)
English (en)
Other versions
EP0599163A1 (fr
Inventor
Hermann Dipl.-Ing. Niebler
Hans Dipl.-Ing. Weigl (Fh)
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
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Publication of EP0599163A1 publication Critical patent/EP0599163A1/fr
Application granted granted Critical
Publication of EP0599163B1 publication Critical patent/EP0599163B1/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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • 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

Definitions

  • the invention relates to a liquid ring machine according to the preamble of claim 1.
  • liquid ring machines which are used as vacuum pumps and compressors
  • the axis of the impeller is arranged eccentrically to the axis of the housing.
  • the two corresponding axes are offset from each other by an eccentricity measure in the vertical direction.
  • a liquid ring machine optimized for vacuum operation does not work optimally in compressor operation.
  • the object of the present invention is to provide a liquid ring machine which can be optimally used in a simple manner both for vacuum operation and for compressor operation.
  • the liquid ring machine according to the invention has a maximum efficiency both for vacuum operation (final pressure equal to atmospheric pressure) and for compressor operation (suction pressure greater than or equal to atmospheric pressure). Since the pressure curve in the gas space influences the water ring contour, a liquid ring pump optimized for vacuum operation cannot work optimally in compressor operation. A better adaptation to these pressure forces can be achieved by changing the direction of the eccentricity measure.
  • the liquid ring machine according to the invention can e.g. in a frame, standing on the floor or hanging on the wall.
  • the axis of the impeller and the axis of the housing are perpendicular to one another by an amount of eccentricity transferred.
  • the minimum distance between the inside of the housing and the impeller (apex) is arranged radially above the impeller shaft in vacuum operation and radially below the impeller shaft in compressor operation (claim 2).
  • the position of the eccentricity between the axis of the housing and the axis of the impeller can be changed in a particularly simple manner in a liquid ring machine. If only one rotation of the liquid ring machine by 180 ° is provided for changing the position of the eccentricity measure, then an embodiment of the liquid ring machine according to claim 6 is particularly advantageous.
  • 1 denotes a control disk which is mounted together with an impeller in the housing of a liquid ring machine.
  • the control disc 1 In the control disc 1 are a suction slot 2 through which to Compressing gas enters the cells of the impeller located in front of the control disc 1, and a pressure slot 3 through which the compressed gas exits.
  • the control slots assigned to the pressure slot 3 are designated by 4.
  • a shaft passage 5 is arranged such that the axis 6 of the impeller is eccentric to the axis 7 of the housing.
  • the two corresponding axes 6 and 7 are offset from one another in the vertical direction by an eccentricity measure 8.
  • the eccentricity measure 8 in vacuum operation (FIG. 1) is against gravity and thus against the weight force F G
  • the eccentricity measure 8 in compressor operation (FIG. 2) is in the direction of gravity. This gives maximum efficiency in both vacuum and compressor operation.
  • the position of the eccentricity measure 8 can be changed particularly simply in the embodiment shown in FIG. 3 in a front view.
  • the shaft 9 of the impeller is supported at one end in a bearing bracket 11 cast onto the side plate 10.
  • the other end of the shaft 9 is also mounted in a bearing bracket (not shown in FIG. 3) which is cast on the other side plate (likewise not visible).
  • the liquid ring machine shown in FIG. 3 is - as can be seen from the position of the eccentricity measure 8 - prepared for vacuum operation.
  • a switch to compressor operation takes place in the embodiment shown a rotation of the liquid ring machine by 180 °.
  • the liquid ring machine then no longer stands, as shown in FIG. 3, on its feet 12 and 13 formed on the side plate 10, but on its additional feet 14 and 15 also molded on the side plate 10.
  • the additional feet 14 and 15 are preferably identical to the feet 12 and 13.
  • the feet 12 and 13 and the additional feet 14 and 15 can also be arranged on the housing and that instead of standing and additional feet, circumferential fastening rings and / or circumferential tensioning straps can also be provided.
  • the liquid ring machine according to the invention can then be rotated such that a hydrodynamic transverse force F H acting on the shaft 9 of the impeller is exactly opposed to the weight force F G of the impeller shaft 9.

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)

Claims (6)

  1. Machine à anneau liquide comportant un carter et un rotor, dont l'axe (6) est décalé d'une distance d'excentricité (8) par rapport à l'axe (7) du carter, caractérisée par le fait que cette distance d'excentricité (8) s'étend, dans le cas du fonctionnement avec production d'un vide, en sens inverse de la direction de la force de pesanteur et, dans le cas du fonctionnement en compresseur, dans la direction de la force de pesanteur.
  2. Machine à anneau liquide suivant la revendication 1, caractérisée par le fait que la distance minimale, qui est déterminée par la distance d'excentricité (8), entre la face intérieure du carter et le rotor est située, dans le cas du fonctionnement avec production d'un vide, radialement au-dessus de l'arbre (9) du rotor et, dans le cas d'un fonctionnement en compresseur, radialement au-dessous de l'arbre (9) du rotor.
  3. Machine à anneau liquide suivant la revendication 2, caractérisée par le fait que la distance minimale entre la face intérieure du carter et le rotor est choisie de telle sorte qu'une force transversale hydrodynamique (FH), qui agit sur l'arbre (9) du rotor, est dirigée exactement en sens opposé de la force correspondant au poids (FG) de l'arbre (9) du rotor.
  4. Machine à anneau liquide suivant l'une des revendications 1-3, caractérisée par le fait que la modification de la position de la distance d'excentricité (8) peut être obtenue au moyen d'une rotation de la machine à anneau liquide de préférence sur 180° autour de l'axe (7) de son carter.
  5. Machine à anneau liquide suivant l'une des revendications 1-4, caractérisée par le fait qu'un anneau circonférentiel de fixation ou un tuyau et une borne circonférentielle de serrage est disposé sur la périphérie extérieure du carter et/ou des flasques latéraux (10).
  6. Machine à anneau liquide suivant l'une des revendications 1-4, caractérisée par le fait que des pieds de support (12,13) et des pieds supplémentaires (14,15), situés à l'opposé des précédents, sont disposés sur le carter et/ou sur les flasques latéraux (10).
EP93118405A 1992-11-24 1993-11-12 Machine à anneau liquide Expired - Lifetime EP0599163B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4239462 1992-11-24
DE4239462A DE4239462C1 (fr) 1992-11-24 1992-11-24

Publications (2)

Publication Number Publication Date
EP0599163A1 EP0599163A1 (fr) 1994-06-01
EP0599163B1 true EP0599163B1 (fr) 1995-09-06

Family

ID=6473517

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93118405A Expired - Lifetime EP0599163B1 (fr) 1992-11-24 1993-11-12 Machine à anneau liquide

Country Status (3)

Country Link
US (1) US5452990A (fr)
EP (1) EP0599163B1 (fr)
DE (2) DE4239462C1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040202549A1 (en) * 2003-01-17 2004-10-14 Barton Russell H. Liquid ring pump

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE177867C (fr) *
US2098244A (en) * 1935-02-07 1937-11-09 Hopfensberger Georg Rotating machine
DE880382C (de) * 1943-05-07 1953-06-22 Siemens Ag Zweistufiger Fluessigkeitsring-Verdichter
US2453373A (en) * 1944-08-28 1948-11-09 Kollsman Paul Compressor
FR1388967A (fr) * 1964-01-02 1965-02-12 Perfectionnements aux pompes à gaz et compresseurs à anneau liquide
DE2605423A1 (de) * 1976-02-12 1977-08-25 Ewald Josef Ing Grad Doerr Kaltgasmaschine (waermepumpe)
SU1208311A1 (ru) * 1984-08-25 1986-01-30 Казанский Ордена Трудового Красного Знамени Химико-Технологический Институт Им.С.М.Кирова Жидкостно-кольцева машина
SU1460417A1 (ru) * 1987-02-04 1989-02-23 Всесоюзный научно-исследовательский и конструкторско-технологический институт компрессорного машиностроения Жидкостно-кольцева машина
DE8906100U1 (de) * 1989-05-17 1989-06-29 Siemens AG, 1000 Berlin und 8000 München Flüssigkeitsringpumpe
EP0584106B1 (fr) * 1991-05-14 1995-01-25 Siemens Aktiengesellschaft Pompe a anneau liquide a flux multiples

Also Published As

Publication number Publication date
US5452990A (en) 1995-09-26
DE59300565D1 (de) 1995-10-12
EP0599163A1 (fr) 1994-06-01
DE4239462C1 (fr) 1993-09-16

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