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EP1741931B1 - Compresseur à lobes - Google Patents

Compresseur à lobes Download PDF

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Publication number
EP1741931B1
EP1741931B1 EP05014523A EP05014523A EP1741931B1 EP 1741931 B1 EP1741931 B1 EP 1741931B1 EP 05014523 A EP05014523 A EP 05014523A EP 05014523 A EP05014523 A EP 05014523A EP 1741931 B1 EP1741931 B1 EP 1741931B1
Authority
EP
European Patent Office
Prior art keywords
oil
rotary piston
piston compressor
compressor according
rotors
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
EP05014523A
Other languages
German (de)
English (en)
Other versions
EP1741931A1 (fr
Inventor
Ulrich Götzel
Björn IRTEL
Oliver Palm
Olaf Tanner
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.)
Aerzener Maschinenfabrik GmbH
Original Assignee
Aerzener Maschinenfabrik 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 Aerzener Maschinenfabrik GmbH filed Critical Aerzener Maschinenfabrik GmbH
Priority to AT05014523T priority Critical patent/ATE392554T1/de
Priority to DE502005003748T priority patent/DE502005003748D1/de
Priority to EP05014523A priority patent/EP1741931B1/fr
Publication of EP1741931A1 publication Critical patent/EP1741931A1/fr
Application granted granted Critical
Publication of EP1741931B1 publication Critical patent/EP1741931B1/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
    • F04C29/04—Heating; Cooling; Heat insulation
    • 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
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
    • 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
    • F04C18/126—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 radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type

Definitions

  • the rotors run with each other and against the cylinder part of the housing in normal operation without contact. This is ensured by the lateral arrangement of the gearbox, the gears of which, together with the bearing arrangement for the rotors, are preferably lubricated by means of a so-called “oil sump lubrication” for reasons of simplicity and cost savings.
  • the oil supply of the gears and the bearing is usually effected by a mounted on a shaft so-called “ ⁇ lschleuderusion", which is arranged in the oil chamber and immersed in the oil sump.
  • a very important element of such known rotary compressor is the sealing arrangement which is arranged between the oil chamber and the actual delivery chamber.
  • the sealing arrangement consists of special shaft seals or soft packings (so-called stuffing box packings), which have the task of keeping the pumped medium and in particular steam or condensate away from the oil space. Get that Liquid or vapor into the oil space, so the oil is mixed with liquid or condensed steam, so that the lubricity is at least impaired, but often even largely reduced so that the gears of the gear assembly or bearings of the bearing assembly are not sufficiently lubricated, which is capital Damage to the compressor can result.
  • vapor collecting spaces are arranged between the delivery chamber and the oil chamber in the region of the sealing arrangements. These have the task to collect in the direction of the oil space flowing condensates or vapors and to divert through channels and openings provided before reaching the bearing assembly.
  • the complex design of the sealing arrangements has the disadvantage that they are very expensive and often subject to high wear under the given operating conditions.
  • the sealing arrangements are constantly exposed to condensates and dirt particles from the conveying medium.
  • versions without relubricating and use of shaft seals also occurs after a short period of operation by consumption and washout a lack of fat and consequent increased wear in the field of sealing arrangements.
  • versions with relubrication on the other hand longer life of the sealing arrangements are only possible if for a regular maintenance is provided by the operating staff.
  • Object of the present invention is to provide a rotary compressor and a method for its operation, in which a completely new approach is taken to solve the above problems.
  • an electric heater or heating by means of heat exchangers can also be arranged outside the housing in the region of the oil space.
  • the compaction heat inevitably produced during operation by the compression of the pumped medium is utilized.
  • any suitable material can be used. It is advantageous, however, if a glass fiber fleece is used as insulating material.
  • the rotary compressor 1 is designed as a Roots compressor having two rotors, each with three wings or teeth.
  • the housing 2 is further equipped with resistance sensors 4 and 5, with which the temperature of the oil in the oil chambers 43 and 42 is monitored.
  • the supply pipe 15 arranged on the outlet side is equipped with a connection 25 for the injection of conveying medium in its liquid phase.
  • the port 25 further has a branch line, a pressure measuring device 26 and a solenoid valve 27, can be injected via the medium in its liquid phase in the feed tube 15. As already mentioned, this injection is controlled only by the process temperature.
  • FIG. 2 results, the rotors of the rotary compressor 1 via stub shafts 30, 31, 32 and 33 are mounted in the housing 2.
  • This storage consists of rolling bearings 34, which are designed differently in a conventional manner depending on the respective load assumptions.
  • the amount of oil including the housing walls forming the oil space is heated.
  • the necessary for the heating of the oil and the oil chamber housing walls necessary energy can be obtained at least in stationary operation from the inevitably resulting compression heat on the pressure side of the rotary compressor.
  • the heat of compression must be conducted into the region of the oil space, which is accomplished predominantly via the housing 2 of the rotary compressor.
  • the temperature control takes place here by means of the injection of suitable amounts of the liquid phase of the pumped medium via the connection 22 on the suction side of the compressor.
  • This additional heating takes place in the case of the embodiment according to FIG. 2 by two electric heating rods 46 and 47.
  • the heating element 46 is arranged in the region of the oil chamber 42 of the gear arrangement 36 and the heating element 47 in the region of the oil chamber 43 on the opposite side of the housing 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Supercharger (AREA)
  • Friction Gearing (AREA)
  • Rotary Pumps (AREA)

Claims (9)

  1. Compresseur à pistons rotatifs en lobes (1), pour transporter des fluides contenant des vapeurs ou des mélanges gaz-vapeurs en condensation, de préférence de la vapeur d'eau, avec
    - deux rotors ayant chacun deux ailettes ou dents,
    - un carter (2) entourant les rotors, formant, sur ses surfaces intérieures et les surfaces extérieures des ailettes ou des dents, des chambres de transport pour le fluide à transporter,
    - un agencement de palier (34) disposé dans le carter (2) pour les rotors, séparé des chambres de transport par l'intermédiaire d'un dispositif d'étanchéité (35),
    - un agencement de transmission (36), pour le maintien sans contact des rotors pendant le fonctionnement,
    - ainsi qu'une enceinte d'huile (42, 43) , devant recevoir au moins une partie de l'agencement de transmission (36) et une quantité d'huile prévue pour sa lubrification,
    caractérisé en ce que
    la quantité d'huile et/ou les parois de carter formant l'enceinte d'huile (42, 43) sont susceptibles d'être chauffées, directement ou indirectement, de manière que sa/leur température soit située au-dessus de la température d'évaporation ou de condensation du fluide à transporter.
  2. Compresseur à pistons rotatifs en lobes selon la revendication 1, caractérisé en ce qu'un chauffage (4) électrique est prévu pour assurer le chauffage.
  3. Compresseur à pistons rotatifs en lobes selon la revendication 1, caractérisé en ce qu'un échangeur de chaleur est prévu pour assurer le chauffage.
  4. Compresseur à pistons rotatifs en lobes selon la revendication 1, caractérisé en ce que le chauffage est effectué par apport, à l'enceinte à huile (42, 43), de la chaleur de compression produite par la compression du fluide à transporter.
  5. Compresseur à pistons rotatifs en lobes selon les revendications 1 et 4, caractérisé en ce que la température de la quantité d'huile et des parois formant l'enceinte à huile (42, 43) est commandée par injection de fluide à transporter, dans sa phase liquide, sur le côté aspiration du compresseur.
  6. Compresseur à pistons rotatifs en lobes selon la revendication 5, caractérisé en ce qu'une injection côté refoulement est prévue, en plus de l'injection effectuée côté aspiration.
  7. Compresseur à pistons rotatifs en lobes selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la température du fluide à transporter, du côté refoulement, et les températures d'huile dans les deux enceintes à huile sont mesurées par des capteurs de température.
  8. Compresseur à pistons rotatifs en lobes selon la revendication 7, caractérisé en ce que les capteurs de température sont reliés à une commande électronique.
  9. Compresseur à pistons rotatifs en lobes selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que le carter (2) est isolé avec un matelas non tissé (3) formé de fibres de verre.
EP05014523A 2005-07-05 2005-07-05 Compresseur à lobes Expired - Lifetime EP1741931B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT05014523T ATE392554T1 (de) 2005-07-05 2005-07-05 Drehkolbenverdichter
DE502005003748T DE502005003748D1 (de) 2005-07-05 2005-07-05 Drehkolbenverdichter
EP05014523A EP1741931B1 (fr) 2005-07-05 2005-07-05 Compresseur à lobes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05014523A EP1741931B1 (fr) 2005-07-05 2005-07-05 Compresseur à lobes

Publications (2)

Publication Number Publication Date
EP1741931A1 EP1741931A1 (fr) 2007-01-10
EP1741931B1 true EP1741931B1 (fr) 2008-04-16

Family

ID=35365742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05014523A Expired - Lifetime EP1741931B1 (fr) 2005-07-05 2005-07-05 Compresseur à lobes

Country Status (3)

Country Link
EP (1) EP1741931B1 (fr)
AT (1) ATE392554T1 (fr)
DE (1) DE502005003748D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013112024A1 (de) * 2013-10-31 2015-04-30 ENVA Systems GmbH Drehkolbengebläse mit einem Dichtsystem

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006015602A1 (de) * 2006-04-04 2007-10-11 Hydac System Gmbh Einrichtung zum Fördern strömungsfähiger Medien, insbesondere von Schmierstoffen
JP7555870B2 (ja) 2021-03-29 2024-09-25 株式会社荏原製作所 真空ポンプ装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1519045A2 (fr) * 2003-09-25 2005-03-30 Aisin Seiki Kabushiki Kaisha Pompe à vide multi-étagée avec compression à sec

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH365821A (de) * 1959-03-17 1962-11-30 Balzers Hochvakuum Verfahren zum Betrieb von mechanischen Vakuumpumpen und Vakuumpumpe zur Durchführung dieses Verfahrens
DE3414064A1 (de) 1982-10-13 1985-10-17 Aerzener Maschinenfabrik Gmbh, 3251 Aerzen Roots-kompressor zum komprimieren von gasfoermigen foerdermedium
DE3414039A1 (de) 1984-04-13 1985-10-17 Aerzener Maschinenfabrik Gmbh, 3251 Aerzen Roots-kompressor zum komprimieren von gasfoermigem foerdermedium
JPH05141382A (ja) * 1991-11-21 1993-06-08 Matsushita Refrig Co Ltd 冷凍装置
JP4017365B2 (ja) * 2001-07-19 2007-12-05 株式会社荏原製作所 ドライ真空ポンプ
JP4086510B2 (ja) * 2002-02-01 2008-05-14 株式会社荏原製作所 ガス圧縮装置及びその運転方法、及びガスタービン発電装置
SE0202111D0 (sv) * 2002-07-05 2002-07-05 Delaval Holding Ab An arrangement and a method for the treatment of a vacuum pump
DE10330856A1 (de) * 2003-07-09 2005-01-27 Meissner, Werner Pumpe, insbesondere Vakuumpumpe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1519045A2 (fr) * 2003-09-25 2005-03-30 Aisin Seiki Kabushiki Kaisha Pompe à vide multi-étagée avec compression à sec

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013112024A1 (de) * 2013-10-31 2015-04-30 ENVA Systems GmbH Drehkolbengebläse mit einem Dichtsystem

Also Published As

Publication number Publication date
ATE392554T1 (de) 2008-05-15
DE502005003748D1 (de) 2008-05-29
EP1741931A1 (fr) 2007-01-10

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