EP1203158B1 - Procede et module compresseur pour comprimer un flux gazeux - Google Patents

Procede et module compresseur pour comprimer un flux gazeux Download PDF

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Publication number
EP1203158B1
EP1203158B1 EP00944043A EP00944043A EP1203158B1 EP 1203158 B1 EP1203158 B1 EP 1203158B1 EP 00944043 A EP00944043 A EP 00944043A EP 00944043 A EP00944043 A EP 00944043A EP 1203158 B1 EP1203158 B1 EP 1203158B1
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EP
European Patent Office
Prior art keywords
pressure
compressor
hydraulic fluid
compression stage
gas stream
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
EP00944043A
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German (de)
English (en)
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EP1203158A1 (fr
Inventor
Robert Adler
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
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Linde Gas AG
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Filing date
Publication date
Application filed by Linde Gas AG filed Critical Linde Gas AG
Publication of EP1203158A1 publication Critical patent/EP1203158A1/fr
Application granted granted Critical
Publication of EP1203158B1 publication Critical patent/EP1203158B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F04B25/00—Multi-stage pumps
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/008—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being a fluid transmission link

Definitions

  • the invention relates to a method for compressing a gas stream of the inlet temperature t 1 with the aid of hydraulically driven piston compressors in two compression stages from an inlet pressure p 1 to an intermediate pressure p 2 after the first compression stage and from the intermediate pressure p 2 to an outlet pressure p 3 after the second compression stage ,
  • the invention also relates to a compressor module for performing the inventive method with a two-stage compressor part, a Drive part and a power transmission between the compressor part and the Drive part via lines with hydraulic fluid.
  • a generic method for compressing a gas stream is for example known from US-A-5 863 186.
  • Piston compressors for example from 1 bar Compress 300 bar, are built with 3 or 4 stages and over a common Piston shaft driven. With a three-stage machine and cooling between the In stages, a stage pressure ratio of 6.7 is selected and 1 bar in the first stage to 6.7 bar in the second stage to 44.9 bar and in the third stage to 300 bar compacted.
  • the inlet pressure can only be varied within very narrow limits. This is disadvantageous if the entry gas instead of a gasometer from a pipeline with 7 bar pipeline pressure. Another compressor will used, which works with a step pressure ratio of 3.5 bar.
  • the object of the invention is therefore to provide a method and a compressor module To show compression of a gas stream, which is very different Initial pressure of the available gases a certain constant, for example Allow to achieve final pressure, the same machines being energetically favorable be used.
  • the pressure ratios are adjusted by adjusting a hydraulic oil flow for driving the first compression stage and a hydraulic oil flow for driving the second compression stage with the aid of two adjustable hydraulic oil pumps.
  • an inlet pressure changed from 1 bar to 7 bar the hydraulic oil flow for the first stage is reduced and the oil flow for the second stage is increased until both stages are operated at the same pressure ratio, which is the most energetically advantageous when an ideal gas to be compressed is assumed.
  • the deviations of the properties of real gases from the ideal gas and in the case of incomplete recooling to t 1 it can make sense to seek out an operation that is even more energy-efficient in a trial manner by changing the pressure ratios of the stages to one another with almost the same pressure ratio.
  • this re-optimization is familiar to the person skilled in the art, it can be carried out particularly easily with the aid of the drive according to the invention.
  • the one to be compressed can Gas flow methane or hydrogen or a mixture of methane and hydrogen contain.
  • the gas stream to be compressed can be, for example, a natural gas or a contain methane-containing fraction of a natural gas.
  • a pressure variable between 1 and 10 bar can be used as the inlet pressure p 1 .
  • the gas flow to be compressed is almost always made available by pipeline.
  • a fixed pressure between 250 and 350 bar can be used as the outlet pressure p 3 . This is a favorable prerequisite for filling a pressure tank, a pressure gas bottle or a buffer storage.
  • the Drive part for each compressor stage a hydraulic fluid pump with one each Includes adjustment device for the flow rate of the hydraulic fluid.
  • the Compressor stages via one liquid-cooled piston compressor and one each Aftercoolers. This creates an almost isothermal compression and a Setting of approximately the same inlet temperature in both compressor stages allows. This leads to a low specific compressor capacity.
  • the Aftercooler of the second compressor stage makes it easier to fill one of the Compression of the following container without it overheating.
  • Each piston compressor can have two working cylinders.
  • the pulsations in the pressure-carrying lines are then particularly low.
  • Cylinder running surfaces of the working cylinders can be used for cooling from the outside and from the inside be charged with hydraulic fluid. The cooling is then particularly effective.
  • the hydraulic fluid lines can be at least one air-cooled Guide the recooling device for the hydraulic fluid.
  • Such is special simple in construction and provides for operation without a fan, i.e. with natural Working convection, no additional sound source.
  • the method according to the invention can be carried out with at least one of the inventive methods
  • Compressor modules can be used in a natural gas filling station.
  • the fuel may be compressed to contain particles beforehand must be cleaned and dried. After compression, there is a buffer useful, from which vehicles can then be refueled.
  • the invention is explained in more detail using an embodiment with a figure.
  • the Process data mentioned by way of example relate to the use of the Invention at a natural gas filling station, ie with natural gas as a gas stream to be compressed.
  • the natural gas is taken from a pipeline and processed where necessary for operation in internal combustion engines: for example, particles are removed and the natural gas is dried to a water content of less than 10 mol-ppm. (This treatment is not shown in the figure.)
  • the piston compressor 4 has two working cylinders, the cylinder surfaces of which are cooled with hydraulic oil of approximately 60 ° C.
  • the piston compressor in the second compression stage is driven and cooled in the same way as that in the first compression stage.
  • the pressure medium can be a hydraulic oil, is also used as a coolant and is therefore cooled in the return flow 13, 14 from the piston compressors 4, 6.
  • the compressor module is advantageously constructed so that the drive part and a Compression part (with the compressor stages) mounted on a base frame and are housed in a cupboard. There can be several in a natural gas filling station Compressor modules are used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Reciprocating Pumps (AREA)

Claims (11)

  1. Procédé pour la compression d'un flux gazeux (1) d'une température d'entrée t1 à l'aide de compresseurs à piston entraínés hydrauliquement en deux étages de compression (4, 6), d'une pression d'entrée p1 à une pression intermédiaire p2 après le premier étage de compression (4), et de la pression intermédiaire p2 à une pression de sortie p3 après le deuxième étage de compression (6), où le flux gazeux (2) comprimé à la pression intermédiaire p2 est refroidi (5) à la température d'entrée t1 avant l'entrée dans le deuxième étage de compression (6), et où des rapports de pression p3/p2=p2/p1 identiques sont utilisés dans les étages de compression (4, 6), moyennant quoi les rapports de pression sont réglés en ce qu'à l'aide de deux pompes à liquide hydraulique (9, 10) réglables, un flux de liquide hydraulique est adapté en fonction de son débit pour l'entraínement du premier étage de compression (4), et un flux de liquide hydraulique est adapté en fonction de son débit pour l'entraínement du deuxième étage de compression (6).
  2. Procédé selon la revendication 1, caractérisé en ce que le flux gazeux (1, 2) à comprimer contient du méthane ou de l'hydrogène ou un mélange à base de méthane et d'hydrogène.
  3. Procédé selon la revendication 1, caractérisé en ce que le flux gazeux (1, 2) à comprimer contient du gaz naturel ou une fraction d'un gaz naturel à teneur en méthane.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que l'on utilise en guise de pression d'entrée p1, une pression comprise entre 1 et 10 bars.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'en guise de pression de sortie p3, on utilise une pression comprise entre 250 et 350 bars.
  6. Module compresseur pour l'exécution du procédé selon l'une quelconque des revendications 1 à 5 avec un élément de compresseur à deux étages (4, 6), un élément d'entraínement (8) et une transmission de puissance entre l'élément de compresseur (4, 6) et l'élément d'entraínement (8) via des conduites avec du liquide hydraulique (11, 12, 13, 14), caractérisé en ce que l'élément d'entraínement (8) contient pour chaque étage de compresseur (4, 6) une pompe à liquide hydraulique (9, 10) avec respectivement un dispositif de réglage pour l'acheminement du liquide hydraulique.
  7. Module compresseur selon la revendication 6, caractérisé en ce que les étages de compresseur disposent respectivement d'un compresseur à piston (4, 6) refroidi par liquide et respectivement d'un refroidisseur complémentaire (5, 7).
  8. Module compresseur selon la revendication 7, caractérisé en ce que chaque compresseur à piston (4, 6) dispose de deux cylindres de travail.
  9. Module compresseur selon la revendication 8, caractérisé en ce que des glaces de cylindres des cylindres de travail sont alimentées de l'extérieur et de l'intérieur avec du liquide hydraulique pour le refroidissement.
  10. Module compresseur selon l'une quelconque des revendications 7 à 9, caractérisé en ce que les conduites de liquide hydraulique (11, 12, 13, 14) guident au moins un dispositif de recyclage refroidi à l'air pour le liquide hydraulique.
  11. Utilisation du procédé selon l'une quelconque des revendications 1 à 6 et d'au moins un module compresseur selon l'une quelconque des revendications 6 à 11 dans une station de gaz naturel.
EP00944043A 1999-07-20 2000-07-19 Procede et module compresseur pour comprimer un flux gazeux Expired - Lifetime EP1203158B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19933989A DE19933989A1 (de) 1999-07-20 1999-07-20 Verfahren und Kompressormodul zum Verdichten eines Gasstromes
DE19933989 1999-07-20
PCT/EP2000/006901 WO2001006123A1 (fr) 1999-07-20 2000-07-19 Procede et module compresseur pour comprimer un flux gazeux

Publications (2)

Publication Number Publication Date
EP1203158A1 EP1203158A1 (fr) 2002-05-08
EP1203158B1 true EP1203158B1 (fr) 2004-02-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00944043A Expired - Lifetime EP1203158B1 (fr) 1999-07-20 2000-07-19 Procede et module compresseur pour comprimer un flux gazeux

Country Status (9)

Country Link
US (1) US6652241B1 (fr)
EP (1) EP1203158B1 (fr)
JP (1) JP4562335B2 (fr)
AT (1) ATE259938T1 (fr)
AU (1) AU5828500A (fr)
DE (2) DE19933989A1 (fr)
ES (1) ES2215684T3 (fr)
PT (1) PT1203158E (fr)
WO (1) WO2001006123A1 (fr)

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US7802426B2 (en) 2008-06-09 2010-09-28 Sustainx, Inc. System and method for rapid isothermal gas expansion and compression for energy storage
US8677744B2 (en) 2008-04-09 2014-03-25 SustaioX, Inc. Fluid circulation in energy storage and recovery systems
US7958731B2 (en) 2009-01-20 2011-06-14 Sustainx, Inc. Systems and methods for combined thermal and compressed gas energy conversion systems
US8448433B2 (en) 2008-04-09 2013-05-28 Sustainx, Inc. Systems and methods for energy storage and recovery using gas expansion and compression
US8250863B2 (en) 2008-04-09 2012-08-28 Sustainx, Inc. Heat exchange with compressed gas in energy-storage systems
US8225606B2 (en) 2008-04-09 2012-07-24 Sustainx, Inc. Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression
US8359856B2 (en) 2008-04-09 2013-01-29 Sustainx Inc. Systems and methods for efficient pumping of high-pressure fluids for energy storage and recovery
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WO2009126784A2 (fr) 2008-04-09 2009-10-15 Sustainx, Inc. Systèmes et procédés de stockage et de récupération d’énergie à l’aide de gaz comprimé
US8474255B2 (en) 2008-04-09 2013-07-02 Sustainx, Inc. Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange
US8037678B2 (en) 2009-09-11 2011-10-18 Sustainx, Inc. Energy storage and generation systems and methods using coupled cylinder assemblies
US8240140B2 (en) 2008-04-09 2012-08-14 Sustainx, Inc. High-efficiency energy-conversion based on fluid expansion and compression
US8479505B2 (en) 2008-04-09 2013-07-09 Sustainx, Inc. Systems and methods for reducing dead volume in compressed-gas energy storage systems
WO2010105155A2 (fr) 2009-03-12 2010-09-16 Sustainx, Inc. Systèmes et procédés destinés à améliorer le rendement de transmission pour le stockage d'énergie sous forme de gaz comprimé
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EP2433000A2 (fr) 2009-05-22 2012-03-28 General Compression Inc. Dispositif compresseur/détendeur
US8104274B2 (en) 2009-06-04 2012-01-31 Sustainx, Inc. Increased power in compressed-gas energy storage and recovery
WO2011056855A1 (fr) 2009-11-03 2011-05-12 Sustainx, Inc. Systèmes et procédés de stockage d'énergie produite par un gaz comprimé au moyen d'ensembles vérins couplés
JP5892945B2 (ja) 2009-12-24 2016-03-23 ジェネラル コンプレッション インコーポレイテッド 液圧作動システムの効率を最適化するシステム及び方法
US8171728B2 (en) 2010-04-08 2012-05-08 Sustainx, Inc. High-efficiency liquid heat exchange in compressed-gas energy storage systems
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KR20140031319A (ko) 2011-05-17 2014-03-12 서스테인쓰, 인크. 압축 공기 에너지 저장 시스템 내의 효율적인 2상 열전달을 위한 시스템 및 방법
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Also Published As

Publication number Publication date
DE19933989A1 (de) 2001-01-25
JP2003505630A (ja) 2003-02-12
EP1203158A1 (fr) 2002-05-08
ATE259938T1 (de) 2004-03-15
ES2215684T3 (es) 2004-10-16
PT1203158E (pt) 2004-07-30
WO2001006123A1 (fr) 2001-01-25
US6652241B1 (en) 2003-11-25
AU5828500A (en) 2001-02-05
DE50005342D1 (de) 2004-03-25
JP4562335B2 (ja) 2010-10-13

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