EP3447289B1 - Verfahren zum betreiben eines verdichters und verdichter - Google Patents

Verfahren zum betreiben eines verdichters und verdichter Download PDF

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Publication number
EP3447289B1
EP3447289B1 EP17020403.6A EP17020403A EP3447289B1 EP 3447289 B1 EP3447289 B1 EP 3447289B1 EP 17020403 A EP17020403 A EP 17020403A EP 3447289 B1 EP3447289 B1 EP 3447289B1
Authority
EP
European Patent Office
Prior art keywords
compressor
voltage
ionic liquid
electrochemical element
operating
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
EP17020403.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3447289A1 (de
Inventor
Robert Adler
Sascha Dorner
Christoph Nagl
Georg Fahrthofer
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.)
Linde GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Priority to US16/640,777 priority Critical patent/US20210033083A1/en
Priority to CN201880052563.1A priority patent/CN110998092B/zh
Priority to PCT/EP2018/025207 priority patent/WO2019037894A1/de
Priority to KR1020207004106A priority patent/KR102560641B1/ko
Publication of EP3447289A1 publication Critical patent/EP3447289A1/de
Application granted granted Critical
Publication of EP3447289B1 publication Critical patent/EP3447289B1/de
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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F04B39/0011—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons liquid pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/04—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being hot or corrosive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/18—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/04—Measures to avoid lubricant contaminating the pumped 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
    • F04C2210/00—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
    • F04C2210/00—Fluid
    • F04C2210/24—Fluid mixed, e.g. two-phase 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
    • F04C2210/00—Fluid
    • F04C2210/40—Properties

Definitions

  • the invention relates to a method for operating a compressor, in which an ionic liquid is used as the operating liquid, and to such a compressor.
  • Compressors are used in particular for compressing gaseous media.
  • the medium can be displaced in a displacement cylinder, for example by means of an operating fluid.
  • compressors are also referred to as pistonless compressors.
  • An ionic liquid can be used as the operating liquid. This is then available in particular in an actual hydraulic oil circuit and in a gas circuit. Ionic liquids have the advantage that they have no or at least no measurable vapor pressure. Therefore, gas can be compressed in the manner described without components of the operating fluid subsequently remaining in the compressed gas, as is the case with conventional operating fluids such as hydraulic oil.
  • a compressor is for example from the publication DE-102011101504-A1 known.
  • Ionic liquids are, in particular, liquid salt, which therefore forms an electrolyte within the compressor or the compressor system. Since in such a compressor different materials are generally used for different components or parts of the compressor with which the ionic liquid is also in contact, an electrochemical element is formed. Here, the less noble material or element in the ionic liquid with respect to the electrochemical voltage series goes into solution and is broken down or consumed. Elsewhere, this material is deposited accordingly. Overall, this leads to a reduced service life or running time of the compressor.
  • the present invention is based on a method for operating a compressor, in which an ionic liquid is used as the operating liquid. If such a compressor has two different materials that are brought into contact with the ionic liquid, an electrochemical element is automatically formed.
  • composition can also have a counter ion, in particular Cl - .
  • Cylinder heads, pipes, pistons, valve housings and valves are particularly relevant components or components of the compressor that can be affected here.
  • suitable materials are iron (or steel), aluminum and zinc.
  • a counter voltage is applied to the compressor at least for the partial compensation of a voltage of the electrochemical element. It is particularly expedient to compensate the tension as completely as possible, but at least 80%, in particular 90%, for example.
  • external current i.e. external current
  • the counter voltage can be generated by a suitable voltage source and applied at suitable points in the compressor or the corresponding components.
  • the voltage of the electrochemical element is measured and the countervoltage is set on the basis thereof.
  • a suitable measuring device can be provided, which, for example, taps off the applied voltage at suitable points of the different materials. This then enables a particularly precise setting or presetting of the counter voltage and thus the greatest possible compensation of the voltage caused by the electrochemical element. Ultimately, this leads to the lowest possible wear on the materials of the compressor and thus of the compressor as a whole.
  • counter voltage is set as part of a regulation. In this way, any deviations can be compensated for during operation of the compressor.
  • a piston compressor and / or a multi-stage compressor is preferably used as the compressor, in particular thus, for example, a multi-stage piston compressor.
  • Such compressors are relatively simple in construction, but still benefit from the advantages of the ionic liquid as the operating liquid. Screw compressors, scroll compressors, rotary compressors or compressors in which two-phase mixtures can be used are also suitable.
  • a gas in particular hydrogen, or a gas mixture is compressed by means of the compressor.
  • the use of the ionic liquid has the advantage that no residues of this liquid remain in the compressed gas and a particularly pure, compressed gas can thus be obtained. This is of particular interest in the case of hydrogen, since hydrogen is used, for example, for drives, in particular with fuel cells.
  • the invention further relates to a compressor in which an ionic liquid is provided as the operating liquid and in which two different materials of the compressor are in contact with the ionic liquid and form an electrochemical element.
  • a compressor in which an ionic liquid is provided as the operating liquid and in which two different materials of the compressor are in contact with the ionic liquid and form an electrochemical element.
  • ionic compressor in particular a so-called ionic compressor.
  • a voltage source is now provided with which one Counter voltage at least for partial compensation of a voltage of the electrochemical element can be applied to the compressor.
  • a measuring device for measuring the voltage of the electrochemical element is preferably provided, the voltage source being set up to set the counter voltage based on the measured voltage.
  • control and / or regulating unit is provided for setting and / or regulating the counter voltage. It is also advantageous if the compressor is designed as a piston compressor and / or multi-stage.
  • FIG. 1 A compressor 100 according to the invention is shown in a preferred embodiment.
  • the compressor here has five cylinders 110, 111, 112, 113 and 114 and a further chamber 150.
  • the cylinder 110 has a movable piston 120 and an inlet valve 140 and an outlet valve 141, these two valves each being arranged in a cylinder head 130 are.
  • the other four cylinders are of identical design, but for the sake of clarity no reference numerals are shown here. It should also be noted that the further cylinders 111 to 114 are smaller than the cylinder 110 in order to enable a corresponding, step-like compression.
  • the respective pistons can be moved, for example, using a suitable drive (not shown here) according to the prior art.
  • a gas b for example hydrogen
  • gas condensed in cylinder 110 can then be directed into the next cylinder 111 via a pipeline 120 (or other suitable connection).
  • the gas which is compressed further and further, can finally be led into the chamber 150 via further such pipelines and from there again out of the compressor 100 via an outlet 122.
  • a closable connecting line 123 is provided from the inlet 121 to the chamber 150.
  • the chamber 150 serves to separate the ionic liquid from the gas flow, the connecting line 123 allows a liquid flow due to the pressure difference between the first and last compressor stage, as a result of which a targeted injection of ionic liquid into the gas flow is possible.
  • An ionic liquid a is now provided as the operating liquid in each of the cylinders 110 to 114 and in the chamber 150.
  • this ionic liquid In addition to acting as a cooling and / or lubricating the compressor, it is a property of this ionic liquid that no gas remains in the gas during the compression of the gas b. As already mentioned at the beginning, this is due to the fact that an ionic liquid has no or at least no measurable vapor pressure.
  • a measuring device 160 is now provided, by means of which, for example, a voltage U is measured between the piston 120 and the cylinder 110 or the wall thereof. If the piston 120 and the cylinder 110 or its wall are now made of different materials, these two materials form an electrochemical cell with a voltage U - here measurable by means of the measuring device 160.
  • the cylinder 110 or its wall can be formed Steel (denoted by c), the piston 120 however, made of aluminum (labeled d). As such, as already mentioned, this leads to one of the materials dissolving in the ionic liquid b and, in particular, being deposited on the other material.
  • a voltage source 170 which in particular can also be part of a control and / or regulating unit, is now provided.
  • this voltage source 170 it is now possible to apply a counter voltage U G to the compressor, here between the piston 120 and the cylinder 110 or its wall, so that a current I G flows.
  • the counter voltage can now be matched as precisely as possible to the measured voltage, so that there is no or at least a significantly lower voltage between the corresponding components or components of the compressor, which thus prevents or at least reduces a solution of the one material in the ionic liquid. This accordingly increases the service life of the compressor 110.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
EP17020403.6A 2017-08-22 2017-09-05 Verfahren zum betreiben eines verdichters und verdichter Active EP3447289B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US16/640,777 US20210033083A1 (en) 2017-08-22 2018-08-01 Method for operating a compressor, and compressor
CN201880052563.1A CN110998092B (zh) 2017-08-22 2018-08-01 用于操作压缩机的方法和压缩机
PCT/EP2018/025207 WO2019037894A1 (de) 2017-08-22 2018-08-01 Verfahren zum betreiben eines verdichters und verdichter
KR1020207004106A KR102560641B1 (ko) 2017-08-22 2018-08-01 압축기 작동 방법, 및 압축기

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017007921.8A DE102017007921A1 (de) 2017-08-22 2017-08-22 Verfahren zum Betreiben eines Verdichters und Verdichter

Publications (2)

Publication Number Publication Date
EP3447289A1 EP3447289A1 (de) 2019-02-27
EP3447289B1 true EP3447289B1 (de) 2019-12-18

Family

ID=59811055

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17020403.6A Active EP3447289B1 (de) 2017-08-22 2017-09-05 Verfahren zum betreiben eines verdichters und verdichter

Country Status (6)

Country Link
US (1) US20210033083A1 (ko)
EP (1) EP3447289B1 (ko)
KR (1) KR102560641B1 (ko)
CN (1) CN110998092B (ko)
DE (1) DE102017007921A1 (ko)
WO (1) WO2019037894A1 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4061983A1 (de) 2019-11-21 2022-09-28 EEG Elements Energy GmbH Elektrolysevorrichtung
KR102503493B1 (ko) 2021-06-14 2023-02-28 (주)부흥산업사 이온성액체를 사용한 압축기 구조
KR102662208B1 (ko) 2022-03-25 2024-05-03 (주)부흥산업사 이온성액체가 함유된 피스톤 링 제조방법 및 이를 사용한 압축기 혹은 진공펌프 구조

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4618921B2 (ja) 2001-03-30 2011-01-26 株式会社鶴見製作所 水中回転機械における主軸の電食防止構造
CN100549150C (zh) * 2003-10-10 2009-10-14 出光兴产株式会社 润滑油
EP1794458A1 (de) * 2004-09-17 2007-06-13 Basf Aktiengesellschaft Verfahren zum betrieb eines flüssigringverdichters
DE102004046316A1 (de) * 2004-09-24 2006-03-30 Linde Ag Verfahren und Vorrichtung zum Verdichten eines gasförmigen Mediums
KR100540390B1 (ko) 2005-09-23 2006-01-11 주식회사 삼진정밀 공기배출기능을 갖는 쓰리웨이밸브가 구비된 부식방지용제수밸브
DE102006042918A1 (de) * 2006-09-13 2008-03-27 Linde Ag Kolbenloser Verdichter
DE102009020925A1 (de) * 2009-05-12 2010-11-18 Linde Aktiengesellschaft Verdichter mit Kolbendummy
DE102011101504A1 (de) * 2011-05-13 2012-11-15 Linde Ag Verdichtung eines mit Wasser gesättigten Mediums
WO2014109271A1 (en) * 2013-01-14 2014-07-17 Semiconductor Energy Laboratory Co., Ltd. Electrochemical device
DE102013212725A1 (de) 2013-06-28 2014-12-31 Ksb Aktiengesellschaft Fluidführendes System mit kathodischem Korrosionsschutz

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
WO2019037894A1 (de) 2019-02-28
CN110998092A (zh) 2020-04-10
US20210033083A1 (en) 2021-02-04
CN110998092B (zh) 2023-06-27
KR20200045469A (ko) 2020-05-04
KR102560641B1 (ko) 2023-07-26
EP3447289A1 (de) 2019-02-27
DE102017007921A1 (de) 2019-02-28

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