EP0736692B1 - Etanchéité, aménagement des paliers et entraínement des rotors d'un compresseur à vis tournant à sec - Google Patents

Etanchéité, aménagement des paliers et entraínement des rotors d'un compresseur à vis tournant à sec Download PDF

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Publication number
EP0736692B1
EP0736692B1 EP96101860A EP96101860A EP0736692B1 EP 0736692 B1 EP0736692 B1 EP 0736692B1 EP 96101860 A EP96101860 A EP 96101860A EP 96101860 A EP96101860 A EP 96101860A EP 0736692 B1 EP0736692 B1 EP 0736692B1
Authority
EP
European Patent Office
Prior art keywords
rotors
rotor
pressure side
bearing housing
bearing
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
EP96101860A
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German (de)
English (en)
Other versions
EP0736692A1 (fr
Inventor
Manfred Dipl.-Ing. Heinen
Hans-Hermann Dipl.-Ing. Reinersmann
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.)
MAN Turbo AG
Original Assignee
MAN Turbomaschinen AG GHH Borsig
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 MAN Turbomaschinen AG GHH Borsig filed Critical MAN Turbomaschinen AG GHH Borsig
Publication of EP0736692A1 publication Critical patent/EP0736692A1/fr
Application granted granted Critical
Publication of EP0736692B1 publication Critical patent/EP0736692B1/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
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • F04C2220/00—Application
    • F04C2220/10—Vacuum
    • F04C2220/12—Dry running

Definitions

  • the invention relates to a dry-running rotor compressor with meshing between a screw-toothed rib rotor and a screw-toothed slot rotor with the features of The preamble of claim 1.
  • a screw rotor compressor transports as inevitable conveying displacement machine accordingly the medium not only from the suction to the pressure side, but also compresses it this way too, by reducing the size of the tooth spaces. If the rotors or rotors rotate in the housing, they arrive the suction-side control edge out of engagement, so that a Cross section and a volume for suction opens. With another The rotors at their control edges turn again Intervention. The cross section of the axial direction itself moving workspace is reduced to the control edge on the pressure side of the housing on which the compressed medium is pushed out.
  • Screw rotor compressors can be used directly with the Engine speed via a built-in or external gear drive.
  • Screw rotor compressors with small compression ratios (Final pressure / suction pressure) at which the pumped medium is not included a coolant may be contaminated as dry-running screw rotor compressors or as dry rotors designated and need to maintain the distance of A differential gear, which the rotors in front Touch protects.
  • the rotors of these screw rotor compressors have both sides arranged pegs in axial and radial bearings in the housing are stored.
  • a screw compressor is known from EP-A-0 101 345, at which the pressure-side ends of the rotors with an inner bearing are provided, while the suction-side rotor ends outside are stored, and the drive point outside the compressor lies.
  • the well-known screw compressor shows only in Area of the bearing of the rotors individual sealing sections Atmosphere side. These seals are located radially on the rotors on, which increases the bearing distances.
  • the known Screw compressor has a relatively large length on and its sealing is unsatisfactory.
  • the drive of the screw rotor compressor can be done on one the rotor ends on the suction or pressure side.
  • a torsion shaft is also possible, which is through a hole in the suction or pressure side bearing housing and in one of the four Cone is guided. Via a coupling at the outer end of the Torsion shaft drives the compressor.
  • the sealing washers consist of a sintered PTFE-mica mixture or of a material with similar properties.
  • the invention has for its object a dry-running screw rotor compressor with extremely short To create design and the shortest possible design to achieve the greatest possible tightness.
  • the screw rotor compressor internal rotor bearings are part of the suction side and of the pressure side bearing housing and consist of the same Material, e.g. B. Cast steel.
  • the pins protrude into the holes Rotors into it, which are used to support the rotors with sliding or Rolling bearings are equipped.
  • the drive of the screw rotor compressor can be on one of the rotor ends on the suction or pressure side. Between the pressure side ends of the rotors and the pressure side Bearing housings are each gear wheels Differential gear and a seal housing with Sealing washers and seals arranged. Between suction-side ends of the rotors and the suction-side Bearing housings are only seal housings, sealing washers and seals provided.
  • Sealing the compression space from the environment is achieved with seals that are on the pressure side in one Seal housing and suction side also in one Seal housing that in the suction side bearing housing is attached, attached and against the rotor end faces are directed.
  • Gas-sealed seals for example, can be used as seals are used, the particularly high sealing requirements fulfill.
  • sealing washers which are also on the seal housing are attached, the tooth gap spaces sealed against each other.
  • the gap between the Rotors and the sealing washers will be on during assembly 0 mm set.
  • the Sealing discs removed from the rotors as far as for the non-contact run between the sealing washer and rotor is required.
  • Dry-running screw rotor compressors resulting from the given pressure level and the specified speed, according to the calculated Bearing force and the required service life, with sliding or roller bearings.
  • gear wheels arranged on the pressure side, Seals and the bearing housing are the pressure conditions customized.
  • 1 is the suction-side bearing housing (3) on its inside with a pin (25) for Intervention in the bore in the fin rotor (1) and with a further pin (25) for engagement in the Grooved rotor (2).
  • the pressure-side bearing housing (5) has on it Also inside the pin (25). One of those cones engages in the hole in the rib rotor (1) and the other into the hole in the slot rotor (2). Both bearing housings (3, 5) are detachable on the compressor housing (4) attached.
  • the rotors (1, 2) exist within the Compressor housing (4) only from the screw-toothed Part of the rib rotor (1) and the screw-toothed Part of the slot rotor (2), in the end centric holes for receiving the pin (25) introduced are.
  • Fig. 1 is the Drive of the compressor on the pressure side on the rib rotor (1).
  • the bearings of the rotors (1, 2) on the pressure side Pin (25) is carried out by radial bearings and axial bearings (20, 22) held by spacer rings (21) and are secured by shaft nuts (23). Suction side are the rotors (1, 2) in radial bearings (12) on the Pin (25) stored.
  • the rib rotor (1) is driven on the pressure side with the help of a torsion shaft (9) with coupling flange.
  • This torsion shaft is through a hole in the pressure-side bearing housing (5) and the pin (25) led and has a thickening at the inside end (26), which is in a recess of the bore of the Rib rotor (1) is located. Between the torsion shaft (9) and the rib rotor (1) is thereby a positive Connected.
  • the seal between the spaces between the teeth Rotors (1, 2) are made using sealing disks (15, 16), the in the suction side seal housing (14) or in the pressure side seal housing (8) inserted and be attached.
  • This differential consists of a gear wheel (6) for the rib rotor (1) and a gear wheel (7) for the slot rotor (2) with the required pressure side bearing locks (19).
  • Fig. 2 shows the design of a screw rotor compressor with radial bearings (12) and (20) for one high bearing load is laid out.
  • this is pressure-side bearing housing (5) designed so that wider gear wheels (6 ') on the rib rotor (1) and also wider gear wheels (7 ') on the slot rotor (23) and larger radial and axial bearings (20, 22) be used.
  • the gear wheels (6 ', 7') are with spur tooth clutches (24, 27) via central screws (18) with the Rotors (1, 2) connected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Claims (4)

  1. Invention concernant un compresseur à rotors de type sec, qui comprend :
    Un engrènement entre un rotor à nervures (1) à denture hélicoïdale et un rotor à cannelures (2) à denture hélicoïdale ;
    Un logement de palier (3,5), côté aspiration et côté pression, le logement de palier situé côté pression (5) présentant des tourillons qui font saillie dans des alésages pratiqués dans les rotors (1,2) et sont munis de paliers lisses ou de paliers à roulement ;
    Des garnitures d'étanchéité (17) placées sur les logements de palier (3,5) et les extrémités des rotors ;
    Ainsi que des roues d'engrenage (6,7 et 6',7') d'un mécanisme de compensation entre les extrémités des rotors (1,2) et le logement de palier (5) ;
    Ce compresseur à rotors de type sec se caractérise en ce que le logement de palier situé côté aspiration (3) présente lui aussi des tourillons qui font saillie dans des alésages pratiqués dans les rotors (1,2) et sont munis de paliers lisses ou de paliers à roulement;
    Un arbre de torsion (9) d'une moitié d'accouplement pour l'entraínement du compresseur est guidé à travers un alésage dans le logement de palier situé côté aspiration ou côté pression et à travers un des tourillons ;
    Il est prévu dans chaque cas, un boítier d'étanchéité (8,14) placé entre les extrémités côté pression et côté aspiration des rotors (1,2) et le logement de palier (5). Les garnitures d'étanchéité (17,10) et les disques d'étanchéité (16,15) sont montés dans ce boítier d'étanchéité et sont dirigés contre les surfaces de contact des rotors (1,2).
  2. Compresseur à rotors selon la revendication 1 caractérisé en ce qu'il est prévu entre les extrémités côté pression des rotors (1,2) et les roues d'engrenage (6',7') dont la largeur d'engrènement est plus importante, des accouplements à denture frontale (24,27) fixés de manière amovible aux extrémités côté pression des rotors (1,2) par une vis de centrage (18).
  3. Compresseur à rotors selon les revendications 1 et 2, caractérisé en ce que les garnitures d'étanchéité utilisées sont des garnitures d'étanchéité hermétiques aux gaz, de type statique ou dynamique ou une combinaison des deux types.
  4. Compresseur à rotors selon les revendications 1 à 3, caractérisé en ce que les disques d'étanchéité (15,16) sont produits de manière connue à partir d'un mélange PTFE-mica fritté ou à partir d'un matériau présentant des propriétés similaires.
EP96101860A 1995-04-08 1996-02-09 Etanchéité, aménagement des paliers et entraínement des rotors d'un compresseur à vis tournant à sec Expired - Lifetime EP0736692B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19513380 1995-04-08
DE19513380A DE19513380C2 (de) 1995-04-08 1995-04-08 Abdichtung, Lagerung und Antrieb der Rotoren eines trockenlaufenden Schraubenrotorverdichters

Publications (2)

Publication Number Publication Date
EP0736692A1 EP0736692A1 (fr) 1996-10-09
EP0736692B1 true EP0736692B1 (fr) 2001-04-18

Family

ID=7759258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96101860A Expired - Lifetime EP0736692B1 (fr) 1995-04-08 1996-02-09 Etanchéité, aménagement des paliers et entraínement des rotors d'un compresseur à vis tournant à sec

Country Status (4)

Country Link
US (1) US5695327A (fr)
EP (1) EP0736692B1 (fr)
JP (1) JPH08284855A (fr)
DE (1) DE19513380C2 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19800825A1 (de) * 1998-01-02 1999-07-08 Schacht Friedrich Trockenverdichtende Schraubenspindelpumpe
US6241486B1 (en) 1998-03-18 2001-06-05 Flowserve Management Company Compact sealless screw pump
EP0952351A1 (fr) 1998-04-21 1999-10-27 Ateliers Busch S.A. Machine volumétrique
DE19820523A1 (de) * 1998-05-08 1999-11-11 Peter Frieden Schraubenspindel-Vakuumpumpe mit Rotorkühlung
DE19820622A1 (de) * 1998-05-09 1999-11-11 Peter Frieden Demontierbare Vielzweckpumpe oder -kompressor für Chemie-, Verfahrens-, Lebensmittel- und Vakuumtechnik
US6652250B2 (en) * 2000-10-16 2003-11-25 Kobe Steel, Ltd. Screw compressor having intermediate shaft bearing
US7121814B2 (en) * 2004-09-30 2006-10-17 Carrier Corporation Compressor sound suppression
WO2006041494A1 (fr) * 2004-09-30 2006-04-20 Carrier Corporation Joint pour compresseur a vis
US20070092393A1 (en) * 2005-10-26 2007-04-26 General Electric Company Gas release port for oil-free screw compressor
US10941770B2 (en) 2010-07-20 2021-03-09 Trane International Inc. Variable capacity screw compressor and method
FR2964163A1 (fr) * 2010-10-12 2012-03-02 Alcatel Lucent Pompe a vide de type seche
US10718334B2 (en) 2015-12-21 2020-07-21 Ingersoll-Rand Industrial U.S., Inc. Compressor with ribbed cooling jacket
DE102017100537A1 (de) * 2016-09-21 2018-03-22 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Verfahren zum Herstellen eines Gehäuses eines Schraubenkompressors
CN109538478A (zh) * 2018-11-27 2019-03-29 王廷华 一种压缩机
DE202018107141U1 (de) * 2018-12-13 2020-03-18 Vogelsang Gmbh & Co. Kg Drehkolbenpumpe mit innenliegender Lagerung
BE1026993B1 (nl) 2019-01-29 2020-08-24 Atlas Copco Airpower Nv Drooglopend Systeem met Slijtwillig Afdichtingselement, Afdichtingselement Daarvoor en Werkwijze voor het Samenstellen van het Systeem
DK3889431T3 (da) * 2020-03-31 2024-03-18 Alfa Laval Corp Ab Roterende, positiv fortrængningspumpe

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GB2100353A (en) * 1981-06-17 1982-12-22 Zimmern Bernard Rotary positive-displacement fluidmachines
DE3609996A1 (de) * 1986-03-25 1987-10-01 Mahle Gmbh Schraubenverdichter

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Publication number Priority date Publication date Assignee Title
US2031125A (en) * 1934-02-06 1936-02-18 Erospha Inc Spherical machine
GB2100353A (en) * 1981-06-17 1982-12-22 Zimmern Bernard Rotary positive-displacement fluidmachines
DE3609996A1 (de) * 1986-03-25 1987-10-01 Mahle Gmbh Schraubenverdichter

Also Published As

Publication number Publication date
JPH08284855A (ja) 1996-10-29
US5695327A (en) 1997-12-09
DE19513380A1 (de) 1996-10-10
EP0736692A1 (fr) 1996-10-09
DE19513380C2 (de) 1997-09-04

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