EP3322899B1 - Compresseur et procédé de commande de la vitesse angulaire - Google Patents

Compresseur et procédé de commande de la vitesse angulaire Download PDF

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Publication number
EP3322899B1
EP3322899B1 EP16745062.6A EP16745062A EP3322899B1 EP 3322899 B1 EP3322899 B1 EP 3322899B1 EP 16745062 A EP16745062 A EP 16745062A EP 3322899 B1 EP3322899 B1 EP 3322899B1
Authority
EP
European Patent Office
Prior art keywords
compressor
rotational rate
speed
target rotational
mean value
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.)
Active
Application number
EP16745062.6A
Other languages
German (de)
English (en)
Other versions
EP3322899A1 (fr
Inventor
Frank Georg Klaus
Norbert RHEINLÄNDER
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.)
Gardner Denver Deutschland GmbH
Original Assignee
Gardner Denver Deutschland 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 Gardner Denver Deutschland GmbH filed Critical Gardner Denver Deutschland GmbH
Publication of EP3322899A1 publication Critical patent/EP3322899A1/fr
Application granted granted Critical
Publication of EP3322899B1 publication Critical patent/EP3322899B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/08—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the rotational speed
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/026—Lubricant separation

Definitions

  • the present invention initially relates to a method for controlling the speed of a compressor, by which in particular the rotational speed of a rotating compression element of the compressor is controlled. Furthermore, the invention relates to a compressor; For example, a compressor for generating compressed air.
  • the DE 603 13 320 T2 shows a method of unloading a screw compressor in which air is removed from the screw compressor with a closed air inlet.
  • the DE 10 2013 111 218 A1 teaches an electronic control device for a component for generating compressed air.
  • the controller relies on models for the structure and behavior of the compressed air component.
  • the DE 601 18 088 T2 shows a method for controlling a compressor unit, in which the speed of a lubricated compressor element is controlled.
  • the WO 2007/019651 A2 describes a device for adjusting the flow rate of a screw compressor.
  • the object of the present invention starting from the prior art is to permanently ensure the function of a compressor whose output power is variable by varying its speed while allowing efficient operation of the compressor.
  • the inventive method is used for speed control of a compressor.
  • the compressor is in particular a compressor, which preferably serves to generate compressed air.
  • the operation of the compressor is through a speed is characterized, which is in particular the rotational speed of a rotatable compression element of the compressor.
  • the compressor should be operated during its operation at a speed which has an average value which is at least as large as a minimum mean value.
  • the speed is variable over time.
  • the mean value is an average value of the time-varying speed.
  • the permanent function of the compressor is guaranteed only if its speed in the longer term average is at least as large as the minimum mean value. This results from the fact that individual operations in the compressor, such as in particular an oil separation or lubrication, only to a sufficient extent, if the speed of the compressor in the longer term average is at least as large as the minimum mean.
  • a setpoint speed of the compressor is determined which is necessary for an output power to be achieved by the compressor.
  • the output power to be obtained by the compressor is determined by another process or by an operator of the compressor and is variable in time. Accordingly, the setpoint speed is temporally variable.
  • a particular advantage of the method according to the invention is that the compressor can be operated efficiently because it can work at times even at low speeds, which are below a corresponding static lower speed limit, if a correspondingly low power requirement exists.
  • the time profile of the time-variable setpoint speed of the compressor is recorded during the monitoring interval.
  • the average of the target speed but also the time course of the target speed is present.
  • the time-varying output power to be achieved is preferably represented by a volume flow of the medium compressed by the compressor.
  • the speed of the compressor and the volume flow are directly dependent on each other.
  • the achievable, time-varying output power can also be represented by a pressure.
  • the volume flow of the screw compressor is at a minimum speed of the screw compressor below the minimum volume flow of the fine separator. If the screw compressor were operated permanently at its minimum speed, this would lead to an increased residual fluid content, so that the function of the screw compressor would be impaired or the desired purity of the delivered medium (eg compressed air) does not meet the requirements, resulting in subsequent damage , supplied power plant components.
  • the delivered medium eg compressed air

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Claims (10)

  1. Procédé de commande de vitesse de rotation d'un compresseur, lequel doit être utilisé pendant son fonctionnement avec une vitesse de rotation qui comporte une valeur moyenne, laquelle est au moins aussi grande qu'une moyenne minimale pour garantir le fonctionnement du compresseur, le procédé comprenant les étapes suivantes :
    - détermination d'une vitesse de rotation théorique variable dans le temps du compresseur, qui est nécessaire pour une puissance initiale variable dans le temps à atteindre par le compresseur,
    - détermination d'une moyenne temporelle de la vitesse de rotation théorique variable dans le temps, et
    - augmentation d'une limite de vitesse de rotation inférieure au cas où la moyenne temporelle de la vitesse de rotation théorique variable est plus petite que la valeur moyenne minimale de la vitesse de rotation du compresseur.
  2. Procédé selon la revendication 1, caractérisé en ce que la moyenne temporelle de la vitesse de rotation théorique variable dans le temps est déterminée pendant un intervalle de surveillance.
  3. Procédé selon la revendication 2, caractérisé en ce que la limite de vitesse de rotation inférieure est augmentée directement après expiration de l'intervalle de surveillance, au cas où la moyenne temporelle de la vitesse de rotation théorique variable est plus petite que la valeur moyenne minimale de la vitesse de rotation du compresseur.
  4. Procédé selon la revendication 2 ou 3, caractérisé en ce que l'évolution dans le temps de la vitesse de rotation théorique variable dans le temps du compresseur est enregistrée pendant l'intervalle de surveillance.
  5. Procédé selon la revendication 4, caractérisé en ce que la limite de vitesse de rotation inférieure est augmentée après expiration de l'intervalle de surveillance dans la mesure où l'évolution dans le temps enregistrée de la vitesse de rotation théorique variable dans le temps comporte une moyenne temporelle pendant l'intervalle de surveillance avec une limitation assurée par la limite de vitesse de rotation inférieure relevée, laquelle est aussi grande que la valeur moyenne minimale de la vitesse de rotation du compresseur.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'il comprend les étapes suivantes :
    - surveillance du nombre de fois où la vitesse de rotation théorique variable dans le temps change entre une vitesse de rotation théorique supérieure et une vitesse de rotation théorique inférieure, et
    - baisse d'une limite de vitesse de rotation supérieure au cas où le nombre de changements entre la vitesse de rotation théorique inférieure et la vitesse de rotation théorique supérieure dépasse un nombre maximal prédéfini.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'un gaz est compressé avec le compresseur, un fluide étant utilisé comme lubrifiant et/ou comme réfrigérant, lequel est séparé du gaz compressé par un séparateur.
  8. Procédé selon la revendication 7, caractérisé en ce que la limite de vitesse de rotation inférieure est relevée au cas où la moyenne temporelle de la vitesse de rotation théorique variable est plus petite que la valeur moyenne minimale de la vitesse de rotation du compresseur pour garantir la séparation du fluide du gaz compressé.
  9. Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la puissance initiale à atteindre, variable dans le temps est représentée par un débit volumique d'un milieu à compresser par le compresseur.
  10. Compresseur pour compresser un milieu, comprenant au moins un élément de compression pouvant tourner et un moteur pour entraîner au moins un élément de compression pouvant tourner, le compresseur étant à faire fonctionner pendant son fonctionnement à une vitesse de rotation qui comporte une valeur moyenne, laquelle est au moins aussi grande qu'une valeur moyenne minimale pour garantir le fonctionnement continu du compresseur et le compresseur comprenant une commande de vitesse de rotation qui est configurée pour exécuter un procédé selon l'une quelconque des revendications 1 à 9.
EP16745062.6A 2015-07-13 2016-07-12 Compresseur et procédé de commande de la vitesse angulaire Active EP3322899B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015111287.6A DE102015111287B4 (de) 2015-07-13 2015-07-13 Kompressor und Verfahren zu dessen Drehzahlsteuerung
PCT/EP2016/066469 WO2017009307A1 (fr) 2015-07-13 2016-07-12 Compresseur et procédé de commande de sa vitesse de rotation

Publications (2)

Publication Number Publication Date
EP3322899A1 EP3322899A1 (fr) 2018-05-23
EP3322899B1 true EP3322899B1 (fr) 2019-05-08

Family

ID=56555360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16745062.6A Active EP3322899B1 (fr) 2015-07-13 2016-07-12 Compresseur et procédé de commande de la vitesse angulaire

Country Status (7)

Country Link
US (1) US10815996B2 (fr)
EP (1) EP3322899B1 (fr)
CN (1) CN107923401B (fr)
BR (1) BR112018000483B1 (fr)
CA (1) CA2991806A1 (fr)
DE (1) DE102015111287B4 (fr)
WO (1) WO2017009307A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112865659B (zh) * 2019-11-12 2022-04-19 杭州先途电子有限公司 一种转矩补偿控制方法、系统及控制器

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE30994E (en) * 1978-03-02 1982-07-13 Dunham-Bush, Inc. Vertical axis hermetic rotary helical screw compressor with improved rotary bearings and oil management
JPH0742939B2 (ja) * 1985-10-07 1995-05-15 株式会社日立製作所 トルク制御式圧縮機
KR910009242B1 (ko) * 1987-08-04 1991-11-07 가부시기가이샤 히다찌세이사꾸쇼 회전 전동기의 토오크 제어장치
US6216474B1 (en) 1999-09-27 2001-04-17 Carrier Corporation Part load performance of variable speed screw compressor
BE1013293A3 (nl) 2000-02-22 2001-11-06 Atlas Copco Airpower Nv Werkwijze voor het besturen van een compressorinstallatie en aldus bestuurde compressorinstallatie.
JP4415340B2 (ja) 2000-06-02 2010-02-17 株式会社日立産機システム スクリュー圧縮装置とその運転制御方法
GB2367333B (en) 2000-09-25 2002-12-11 Compair Uk Ltd Improvements in variable speed oil-injected screw compressors
US6860730B2 (en) 2002-05-20 2005-03-01 Driltech Mission, Llc Methods and apparatus for unloading a screw compressor
BE1015088A5 (nl) 2002-09-03 2004-09-07 Atlas Copco Airpower Nv Verbeteringen aan compressors.
BE1016727A4 (nl) 2005-08-17 2007-05-08 Atlas Copco Airpower Nv Verbeterde inrichting voor het regelen van het debiet van een mobiele oliegeinjecteerde schroefcompressor.
EP2074357A4 (fr) * 2006-10-06 2013-06-12 Carrier Corp Système réfrigérant avec compresseur à modulation d'impulsions en durée à vitesse multiple
US9145893B2 (en) 2011-06-08 2015-09-29 Bendix Commercial Vehicle Systems Llc Current control via speed control for driving screw compressor under cold conditions
JP5568517B2 (ja) 2011-06-22 2014-08-06 株式会社神戸製鋼所 蒸気駆動式圧縮装置
DE102013111218A1 (de) 2013-10-10 2015-04-16 Kaeser Kompressoren Se Elektronische Steuerungseinrichtung für eine Komponente der Drucklufterzeugung, Druckluftaufbereitung, Druckluftspeicherung und/oder Druckluftverteilung
DE102013113557A1 (de) 2013-12-05 2015-06-11 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Kompressorsystem für ein Schienenfahrzeugs und Verfahren zum Betrieb des Kompressorsystems mit einem sicheren Notlaufbetrieb

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
BR112018000483B1 (pt) 2023-01-10
US20180202443A1 (en) 2018-07-19
WO2017009307A1 (fr) 2017-01-19
DE102015111287B4 (de) 2018-04-26
US10815996B2 (en) 2020-10-27
BR112018000483A2 (pt) 2018-09-11
DE102015111287A1 (de) 2017-01-19
EP3322899A1 (fr) 2018-05-23
CN107923401A (zh) 2018-04-17
CN107923401B (zh) 2019-11-15
CA2991806A1 (fr) 2017-01-19

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