WO2017186341A1 - Machine à énergie fluidique - Google Patents

Machine à énergie fluidique Download PDF

Info

Publication number
WO2017186341A1
WO2017186341A1 PCT/EP2017/000482 EP2017000482W WO2017186341A1 WO 2017186341 A1 WO2017186341 A1 WO 2017186341A1 EP 2017000482 W EP2017000482 W EP 2017000482W WO 2017186341 A1 WO2017186341 A1 WO 2017186341A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid energy
energy machine
housing
pressure
pressure medium
Prior art date
Application number
PCT/EP2017/000482
Other languages
German (de)
English (en)
Inventor
Wilfried-Henning Reese
Tobias Kederer
Martin BRÜCKLMEIER
Simon Schäfer
Michael WESTERMEIER
Original Assignee
Linde Aktiengesellschaft
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 Aktiengesellschaft filed Critical Linde Aktiengesellschaft
Priority to US16/096,062 priority Critical patent/US20190128246A1/en
Priority to EP17720359.3A priority patent/EP3449123A1/fr
Priority to CN201780026620.4A priority patent/CN109072891A/zh
Priority to JP2018556377A priority patent/JP2019515177A/ja
Priority to KR1020187034407A priority patent/KR20190002606A/ko
Publication of WO2017186341A1 publication Critical patent/WO2017186341A1/fr

Links

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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
    • F04B15/08—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • 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
    • F04B51/00—Testing machines, pumps, or pumping installations
    • 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
    • F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
    • F04B15/08—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
    • F04B2015/081—Liquefied gases
    • F04B2015/0822—Hydrogen

Definitions

  • the invention relates to a fluid energy machine comprising a crank drive and a drive device mechanically connected to the crank drive, wherein the drive device comprises two electric motors whose respective output members are mechanically connected to the crank drive and a method for operating this fluid energy machine.
  • cryogenic pumps or cryogenic high-pressure pump are known, which are suitable to promote a fluid in the low temperature range.
  • a pump which is designed in particular for cryogenic media.
  • This pump comprises a piston-cylinder unit which is adapted to convey and / or compress very cold fluids, such as hydrogen.
  • Such pumps are usually operated with a hydraulic drive.
  • Other conventional cryogenic pumping devices include a rotary drive instead of the hydraulic drive, which in turn is coupled to the piston of the piston-cylinder unit.
  • the hydraulic drive for the cryogenic pumping device usually requires a relatively large volume for housing additional units and a cooling device and a reservoir for the hydraulic fluid. Furthermore, a pump device with hydraulic drive in the installation and maintenance as well as for the measuring equipment to be installed for measuring distance in the hydraulic cylinder is relatively expensive. Usually, a linear displacement measuring system is to be arranged for this purpose. In order to avoid impermissible peak values of the volume flow to be generated, a sine-like acceleration curve of the piston is to be set in the pump device. When using a hydraulic drive device is the
  • a fluid machine which is capable of overcoming the disadvantages comprises a crank mechanism and a drive device mechanically connected to the crank mechanism, with which a torque can be introduced into the crank mechanism.
  • the fluid energy machine comprises a piston-cylinder unit whose piston is mechanically connected to the crank mechanism.
  • the drive device comprises two electric motors whose respective output members are mechanically connected to the crank mechanism.
  • the piston-cylinder unit comprises only one piston and only one cylinder.
  • the electric motors hereinafter also referred to as motors for short, are rotatory motors, whereby the arrangement of more than two motors should not be excluded.
  • the drive device thus comprises at least two motors.
  • Speeds can use the electric motors high torque in the range of 1000 Up to 8000 Nm, in particular up to 4000 Nm, can be achieved. The resulting on the
  • the force exerted on the piston rod is 10 to 150 kN, in particular 15 to 20 kN.
  • the bearings can be dimensioned correspondingly smaller, or the waves can be run with a smaller diameter.
  • Category I and II explosion protection zones are not possible due to the availability of suitable electric motors currently available on the market. However, this is especially important for the promotion of hydrogen and other combustible substances.
  • the object of the invention is to provide a fluid energy machine and a method for operating a fluid energy machine, which can be used in explosion protection zones of category I and I I.
  • the object is achieved on the device side in such a way that the fluid energy machine is set up within a housing which seals the fluid energy machine from the environment and which is connected to a pressure maintenance system.
  • water-cooled electric motors are used as electric motors.
  • no air supply for cooling the motors is necessary and the sealing of the housing is easier to implement.
  • the object is achieved such that the fluid energy machine is set up within a housing through which a pressure medium flows.
  • the housing is preferably a force-bearing housing.
  • the housing is divided into several rooms, the rooms are in communication.
  • the spaces are connected in series.
  • the spaces are flowed through successively by the pressure medium.
  • the housing is subdivided into three or five spaces, wherein a first space surrounds the crank drive and a passage for connecting the crank drive to a piston-cylinder unit is provided. All bushings of the housing are known to those skilled in the art
  • Two other rooms each represent the outer space of the respective electric motor.
  • Bushings for cooling and power supply as well as control and regulation technology Another two rooms form in a preferred embodiment, the respective inner space of the two electric motors. Within these rooms is the connection of the respective shaft for power transmission of the respective motor. These spaces are sealed off from the atmosphere by additional covers with special gaskets and allow the passage of the waves.
  • the electric motors may be arranged in another preferred embodiment only within a room.
  • the housing is in particular designed so that an overpressure between 0, 01 and 50 mbar, in particular of 2.5 mbar can be created.
  • This means that the seals for sealing all bushings are designed so that at an overpressure of 0.01 and 50 mbar, in particular of 2.5 mbar, inside the housing compared to the environment of the fluid energy machine, no
  • the overpressure can also be realized in a preferred embodiment in a sealed against the environment housing when no constant flow takes place.
  • the housing communicates via an inlet and an outlet with the pressure-retaining system.
  • the inlet is arranged on the first space and the outlet is installed on the last, in particular the fifth space.
  • the rooms communicate with each other through holes that all
  • Cavities are interconnected and can be traversed by a pressure medium.
  • an overpressure of the pressure medium is maintained by the pressure holding system.
  • the pressure holding system is preferably a compressor station or a Bundles of cylinders. If pressure medium escapes from the housing into the environment as a result of slight leakage and there is thus a loss of pressure medium, the pressure retaining system can introduce new pressure medium.
  • the pressure medium does not have to flow continuously through the housing, but preferably new pressure medium can only ever be added if the overpressure in the housing falls below a predetermined value.
  • the pressure medium used is advantageously air, nitrogen or another inert gas.
  • the pressure medium flows preferably at an overpressure between 0.01 and 50 mbar, in particular at 2.5 mbar through the housing.
  • sensors may be provided within the pressure-maintaining system and / or within the housing to monitor the pressure of the pressure medium. Should the deviation of the pressure from a predetermined value be detected, for example a pressure loss, this indicated a leakage.
  • the sensors are advantageously in connection with the electric motors, so that they can be switched off and de-energized. Thus, the electric motors would no longer be an ignition source.
  • sensors may be provided which detect traces of the medium to be conveyed within the pressure medium in order to determine a leakage within the housing.
  • sensors may be provided which detect traces of the medium to be conveyed within the pressure medium in order to determine a leakage within the housing.
  • the fluid energy machine may exceed a predetermined one
  • the system After a standstill of the fluid energy machine and / or the pressure maintenance system, the system is preferably for a certain time, in particular 2 to 5 minutes, rinsed with an increased flow of the pressure medium to remove any impurities.
  • the fluid energy machine is used to generate a hydrogen volume flow and to compress hydrogen. It is preferred for refueling a vehicle with liquid or gaseous
  • the hydrogen is compressed to a system pressure of 50 to 1000 bar, in particular 350 to 500 bar or 700 or 900 bar.
  • the delivery rate of the hydrogen is adjusted via the frequency of the electric motors, so that it is between 0 and 250 kg / h, in particular between 30 and 200 kg / h.
  • FIG. 1 shows a schematic embodiment of the invention
  • the pump is suitable for cryogenic fluids, in particular for hydrogen.
  • the housing is divided into the rooms 1 to 5, wherein the rooms communicate with each other.
  • Room 1 encloses the crank drive A.
  • Space 2 and space 4 each represent the outer space of the respective electric motor M.
  • the respective magnets, coils and the power electronics are in these
  • Room 3 and room 5 form the respective inner space of the two electric motors M. Within these spaces is the connection of the respective shaft for power transmission of the respective motor. These rooms are sealed off by additional covers W with special seals against the atmosphere.
  • a pressure medium is introduced into the housing.
  • the pressure medium flows through all rooms 1 to 5 in succession and is returned to room 5 via an outlet D back to the pressure holding system.
  • the pressure holding system is designed to maintain the pressure medium at a pressure of 2.5 mbar. If pressure medium escapes into the environment due to small leaks, pressure medium can be supplied in the pressure holding system. If a pressure drop in the pressure holding system is detected or too high
  • Hydrogen content detected within the pressure medium is carried out an emergency shutdown.
  • the motors are stopped and de-energized.
  • the engines are no longer an ignition source.
  • the system can be restarted.
  • the pressure holding system for a certain time, in particular 2 min flushed with an increased mass flow of the pressure medium. If, during standstill, hydrogen has leaked from the pump or lines into the housing, it will be removed or at least diluted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Reciprocating Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

L'invention concerne une machine à énergie fluidique, comprenant une transmission à bielle (A) et un dispositif d'entraînement relié mécaniquement à cette transmission à bielle (A), le dispositif d'entraînement comprenant deux moteurs électriques (M) dont les organes de sortie respectifs sont reliés mécaniquement à la transmission à bielle, cette machine à énergie fluidique étant installée dans un carter (1-5) qui rend la machine à énergie fluidique étanche par rapport à l'environnement et qui est relié à un système de maintien de pression. La présente invention concerne en outre un procédé pour faire fonctionner une telle machine à énergie fluidique.
PCT/EP2017/000482 2016-04-28 2017-04-12 Machine à énergie fluidique WO2017186341A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US16/096,062 US20190128246A1 (en) 2016-04-28 2017-04-12 Fluid energy machine
EP17720359.3A EP3449123A1 (fr) 2016-04-28 2017-04-12 Machine à énergie fluidique
CN201780026620.4A CN109072891A (zh) 2016-04-28 2017-04-12 流体能量机器
JP2018556377A JP2019515177A (ja) 2016-04-28 2017-04-12 流体エネルギー装置
KR1020187034407A KR20190002606A (ko) 2016-04-28 2017-04-12 유체 에너지 기계

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016005216.3A DE102016005216A1 (de) 2016-04-28 2016-04-28 Fluidenergiemaschine
DE102016005216.3 2016-04-28

Publications (1)

Publication Number Publication Date
WO2017186341A1 true WO2017186341A1 (fr) 2017-11-02

Family

ID=58644993

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/000482 WO2017186341A1 (fr) 2016-04-28 2017-04-12 Machine à énergie fluidique

Country Status (7)

Country Link
US (1) US20190128246A1 (fr)
EP (1) EP3449123A1 (fr)
JP (1) JP2019515177A (fr)
KR (1) KR20190002606A (fr)
CN (1) CN109072891A (fr)
DE (1) DE102016005216A1 (fr)
WO (1) WO2017186341A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146096A (en) * 1983-08-29 1985-04-11 Helix Tech Corp Cryogenic refrigeration
FR2644211A1 (fr) * 1989-03-10 1990-09-14 Deutsche Forsch Luft Raumfahrt Pompe a gaz cryogenique, utilisable notamment dans des vehicules
DE9301603U1 (de) * 1993-02-05 1994-06-09 Knf-Neuberger Gmbh, 79112 Freiburg Pumpe zum Fördern explosiver Gase
WO2004088141A2 (fr) * 2003-04-02 2004-10-14 Gebr. Becker Gmbh & Co. Kg Pompe
US20040255591A1 (en) * 2003-06-20 2004-12-23 Denso Corporation Nippon Soken Fluid machine for converting heat into mechanical rotational force
DE102009005447A1 (de) * 2009-01-21 2010-07-22 Wabco Gmbh Kolbenmaschine

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3487657A (en) * 1968-12-04 1970-01-06 Trane Co Refrigeration system with multiple motor and crankshaft compressor
DE19709206A1 (de) * 1997-03-06 1998-09-10 Leybold Vakuum Gmbh Vakuumpumpe
US5957667A (en) * 1997-05-23 1999-09-28 Ballard Generation Systems Inc. Oilless compressor with a pressurizable crankcase and motor containment vessel
JP2001280247A (ja) * 2000-03-31 2001-10-10 Toyota Autom Loom Works Ltd 電動圧縮機
CN2453151Y (zh) * 2000-07-21 2001-10-10 王若亮 一种利用水动力的供水装置
KR20030032303A (ko) * 2001-10-17 2003-04-26 엘지전자 주식회사 수소저장합금 반응시스템의 수소이송용 펌핑장치
DE102007035616A1 (de) 2007-07-30 2009-02-05 Linde Ag Pumpe, insbesondere für kryogene Medien
CN201137518Y (zh) * 2008-01-10 2008-10-22 陈维加 对置式发电机
CN102042188A (zh) * 2009-10-21 2011-05-04 中国科学院理化技术研究所 低温液氢泵及其用途
NO333684B1 (no) * 2011-03-07 2013-08-12 Aker Subsea As Undervanns trykkøkningsmaskin
CN202194801U (zh) * 2011-09-05 2012-04-18 广州市安途电器有限公司 双驱动式打气泵
CN202358618U (zh) * 2011-11-18 2012-08-01 三一重型装备有限公司 输送机双电机驱动装置及输送机
GB2501735B (en) * 2012-05-02 2015-07-22 Edwards Ltd Method and apparatus for warming up a vacuum pump arrangement
AT513836B1 (de) * 2013-09-23 2014-08-15 Hoerbiger Kompressortech Hold Kompressor mit und Verfahren zur Spülung des Kompressorgehäuses mit Spülgas
CN203674886U (zh) * 2014-01-17 2014-06-25 南阳防爆（苏州）特种装备有限公司 用于防爆电机的正压通风控制装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146096A (en) * 1983-08-29 1985-04-11 Helix Tech Corp Cryogenic refrigeration
FR2644211A1 (fr) * 1989-03-10 1990-09-14 Deutsche Forsch Luft Raumfahrt Pompe a gaz cryogenique, utilisable notamment dans des vehicules
DE9301603U1 (de) * 1993-02-05 1994-06-09 Knf-Neuberger Gmbh, 79112 Freiburg Pumpe zum Fördern explosiver Gase
WO2004088141A2 (fr) * 2003-04-02 2004-10-14 Gebr. Becker Gmbh & Co. Kg Pompe
US20040255591A1 (en) * 2003-06-20 2004-12-23 Denso Corporation Nippon Soken Fluid machine for converting heat into mechanical rotational force
DE102009005447A1 (de) * 2009-01-21 2010-07-22 Wabco Gmbh Kolbenmaschine

Also Published As

Publication number Publication date
EP3449123A1 (fr) 2019-03-06
CN109072891A (zh) 2018-12-21
JP2019515177A (ja) 2019-06-06
US20190128246A1 (en) 2019-05-02
KR20190002606A (ko) 2019-01-08
DE102016005216A1 (de) 2017-11-02

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