WO2014095050A1 - Unité de manipulation des gaz - Google Patents

Unité de manipulation des gaz Download PDF

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Publication number
WO2014095050A1
WO2014095050A1 PCT/EP2013/003823 EP2013003823W WO2014095050A1 WO 2014095050 A1 WO2014095050 A1 WO 2014095050A1 EP 2013003823 W EP2013003823 W EP 2013003823W WO 2014095050 A1 WO2014095050 A1 WO 2014095050A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
handling unit
gas handling
piston
unit according
Prior art date
Application number
PCT/EP2013/003823
Other languages
German (de)
English (en)
Inventor
Erwin Weh
Wolfgang Weh
Original Assignee
Erwin Weh
Wolfgang Weh
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
Priority claimed from DE201210024851 external-priority patent/DE102012024851A1/de
Priority claimed from DE201210024850 external-priority patent/DE102012024850A1/de
Application filed by Erwin Weh, Wolfgang Weh filed Critical Erwin Weh
Priority to DE112013006097.3T priority Critical patent/DE112013006097A5/de
Publication of WO2014095050A1 publication Critical patent/WO2014095050A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • G05D16/103—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger the sensing element placed between the inlet and outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0338—Pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators
    • F17C2205/0385—Constructional details of valves, regulators in blocks or units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/066—Fluid distribution for feeding engines for propulsion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0184—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Definitions

  • the invention relates to a gas handling unit, a so-called gas handling unit (GHU) for a system, in particular a vehicle, preferably a tank system of a vehicle with a fluid medium, in particular a gas, with up to 500 bar, in particular up to 700 bar, especially in Range of up to 700 bar up to 1000 bar, reduced to an outlet pressure of less than 50 bar, in particular less than 25 bar, in particular in the range 25 bar to 5 bar pressure.
  • GHU gas handling unit
  • a so-called gas handling unit (GHU) for a system in particular a vehicle, preferably a tank system of a vehicle with a fluid medium, in particular a gas, with up to 500 bar, in particular up to 700 bar, especially in Range of up to 700 bar up to 1000 bar, reduced to an outlet pressure of less than 50 bar, in particular less than 25 bar, in particular in the range 25 bar to 5 bar pressure.
  • GHU gas handling unit
  • Today, increasingly gaseous media such as natural gas or
  • Hydrogen used as fuels for driving machinery, especially vehicles the gaseous medium, after it has been discharged from a gas station in a vehicle tank, during operation of the vehicle continuously to a consumer, such as a motor or a fuel cell, out and consumed there.
  • a consumer such as a motor or a fuel cell
  • Hydrogen stored under high pressure in the tank is continuously fed to the consumer, e.g. B.
  • the vehicle engine or the fuel cell and preferably under constant outlet pressure, preferably an outlet pressure of less than 50 bar, in particular less than 25 bar, in particular in the range 25 to 5 bar, consumed.
  • the pressure in the tank drops from, for example, initially 500 bar to, for example, 9 bar.
  • GHU gas handling unit
  • the pressure valve (1) has two or more pressure reducing stages (10, 46) and at least one of the pressure reducing stages with a pressure regulating mechanism for regulating the fluid pressure downstream of the respective pressure reducing stage.
  • a gas handling unit with overpressure protection, high-pressure measuring device, low-pressure measuring device and filter device is not shown in DE 10 2006 026 338 A1.
  • EP 1 316 755 A1 shows a container valve for a gas container with pressure reducing function. A gas handling unit is not apparent from EP 1 316 755 A1.
  • the object of the invention is to avoid the disadvantages of the prior art and a compact gas handling unit without the abandonment of features such. As delivery rate or pressure resistance to provide.
  • gas handling unit should be characterized by high reliability and a simple, lightweight and compact design and provide sufficient flow. Furthermore, the component should allow a simple function test.
  • the gas handling unit (GHU) according to the invention comprises:
  • a pressure control device in particular in the form of a pressure control valve
  • a high-pressure measuring device and / or at least one filter device may be provided.
  • the GHU is at least characterized in that the pressure control device, in particular the pressure control valve, the overpressure protection unit, possibly the high pressure measuring device and the low pressure measuring device form a structural unit, in particular housed in a common housing, wherein the common housing can be formed integrally or in several parts and the gas handling unit in a high pressure part (HT) and a low pressure part (NT) is divided.
  • HT high pressure part
  • NT low pressure part
  • the gas handling unit (GHU) is further characterized in that a sufficient mass flow of, for example, 12 kg / h, preferably 8 kg / h of gaseous medium, in particular hydrogen, can be provided at a pressure of 9 bar, for example, on the low-pressure side of the GHU , even if the pressure on the input side of the GHU (gas handling unit) has fallen by pressure drop in the tank of 1000 bar or 500 bar to a pressure of, for example, 15 bar.
  • the gas handling unit is designed so that pressures of more than 500 bar, preferably more than 700 bar, in particular in the range 700 bar to 1000 bar can be pending.
  • the system weight is reduced, without having to accept performance losses.
  • the number of components can be reduced. This is achieved by integrating the components into a single component.
  • Components of the GHU are preferably unified and standardized to form a component module. This achieves a processing simplification.
  • the width of the component is preferably less than 200 mm, in particular less than 100 mm, the height of the component less than 200 mm, in particular less than 100 mm and the length of the component less than 300 mm , in particular less than 180 mm.
  • the dimensions are less than 90 x 90 x 200 mm (width x height x length).
  • a particularly preferred component has dimensions of 74 x 87 x 158 mm (width x height x length).
  • the dimensions given are for the housing block of the GHU, not the parts protruding beyond the housing block, for example the pressure relief valve.
  • the work space that must be made available in a vehicle, for example, is significantly larger than the housing block and is up to 70% more than the dimensions of the housing block, ie the work space has for example dimensions of 100 x 100 x 180 mm.
  • the gas handling unit according to the invention is thus characterized by minimal dimensions of the housing block or minimum working space with simultaneous optimization of the overall component size and the weight.
  • the gas handling unit according to the invention is designed as an overall component which fulfills the function of the individual components in their entirety.
  • the gas handling unit gas handling unit (GHU) according to the invention is characterized by an integration of the components in a minimum or predetermined working space with simultaneous optimization of the overall component size, the weight and the resulting costs for the gas handling unit.
  • the gas handling unit (GHU) according to the invention is further distinguished by tightness and reliability at temperatures of up to -40 ° C.
  • gas handling unit (GHU) is the fact that in the functional test only a single component must be tested. A functional test is therefore possible in a single test procedure.
  • a safety shut-off valve may be provided on the low-pressure side of the gas handling unit. This shut-off valve can either be configured separately or be part of the gas handling unit.
  • the pressure control device in the form of a pressure control valve at least one slide member, a conversion element and a spring element and the pressure control unit is configured such that the input pressure by means of the conversion element via the spring element and the slide member continuously to a substantially constant output pressure is regulated.
  • Possible spring elements are z. B. normal springs, helical compression springs or disc springs.
  • the conversion element may be a piston, a bellows or a membrane.
  • the piston can be mounted floating relative to the slider component.
  • a very quiet high control accuracy can be achieved for a mechanical, single-stage pressure regulator.
  • the floating bearing of the piston allows the piston to oscillate and so the z. B. compensated by the spring-related transverse forces.
  • the wear can be further reduced, so that the pressure control valve according to the invention is characterized by a long service life and in particular a high control accuracy, which also has a low drift in the output pressure over the lifetime of up to 20 years.
  • control accuracy of the pressure control valve according to the invention is ⁇ 5 bar, in particular ⁇ 2 bar, more preferably ⁇ 0.5 bar for an output pressure on the output side of less than 25 bar, in particular 5 to 15 bar, preferably for example 9 bar.
  • control accuracy means that the outlet pressure can be maintained at, for example, 9 ⁇ 0.5 bar, at inlet pressures of up to 900 bar.
  • low drift means that the outlet pressure drifts only slightly over time, for example in 10 years, especially 20 years, only by ⁇ 1 bar, preferably ⁇ 0.5 bar, ie. the outlet pressure has changed in 10 years, especially 20 years, only from 9.0 bar to 9.5 bar, for example due to wear.
  • the gas handling unit (GHU) is further characterized in that a sufficient mass flow of, for example, 12 kg / h, preferably 8 kg / h of gaseous medium, in particular hydrogen, can be provided at a pressure of 9 bar, for example, on the low-pressure side of the GHU , even if the pressure on the input side of the GHU (gas handling unit) has fallen by pressure drop in the tank of 1000 bar or 500 bar to a pressure of, for example, 15 bar.
  • the slide component and the piston it is also possible for the slide component and the piston to be rigidly connected in a second embodiment. In such a second embodiment, the spring is then floating relative to the piston, in particular oscillating, mounted.
  • a further third embodiment of the invention can be provided to move the pressure relief valve of the pressure control unit in the direction of the output side of the pressure control unit relative to the low pressure sensor. This simplifies the guidance and minimizes the risk of wear.
  • the guide is particularly improved because the guide member or the guide sleeve moves closer to the main seal.
  • the slide member and piston are rigidly connected, resulting in a spool member and the output of the pressure regulator is moved forward in the gas handling unit, so that it is not necessary to lead gas through the spool member of the spool member for removal.
  • the spring is arranged downstream of the piston, it is even achieved that the spring is accessible from outside, d. H.
  • the cover of the gas handling unit can be removed and the spring can be adjusted from the outside, especially during operation. This is not possible in a configuration with a separate piston and separate slide and / or pressure decrease after the piston.
  • the pressure relief valve in the third embodiment migrates to the rear, the output of the pressure regulator at the point at which sits in the first embodiment of the invention, the pressure relief valve can be arranged.
  • the slider component can be made simpler,
  • the flow is improved.
  • the guide bush can move closer to the main seal.
  • the piston can be moved on the slider component, for example by means of a thread.
  • a locking device which is designed to prevent rotation with locking openings, in which a bolt of the floating, stored piston is designed, be provided, provided.
  • a threaded screw may also be used preferably adhesively bonded.
  • a lock on the slide member can be completely eliminated in the second embodiment, in the slide member and piston are a component.
  • a lock to bias the spring but is still necessary, for example with a lock nut or the like in the area in which the spring is biased. So that in a second embodiment of the pressure regulator remains adjustable, an adjustment is given on the other side of the spring. This pressure regulator is then characterized in that the element with which the bias of the spring is adjusted, can be locked.
  • Alternative way to lock is a locknut.
  • the tip is cone-shaped as in the first embodiment, the tip must always go a long way when the full flow is retrieved because the tip must first clear the main seal.
  • the minimized lift in the third embodiment reduces and minimizes possible wear. Another advantage is that the response is faster.
  • a flat gasket can sit in the housing or in the slide component.
  • the spring element of the pressure control unit has a bias and the spring element acts on the piston to adjust the output pressure.
  • the gas handling unit according to the invention is also distinguished by the fact that the gas can flow in a flow-optimized manner from the inlet side to the outlet side.
  • the slide member comprises a bore for passing the fluid medium, in particular the gaseous medium, from the inlet side with the inlet pressure to the outlet side with the outlet pressure and / or a pointed portion, wherein the bore and / or the pointed portion preferred designed optimized flow.
  • the bore, and / or the seal bore with a relatively large diameter of more than 1, 7 mm, in particular more than 2 mm, whereby a mass flow of more than 8 kg / h of hydrogen , preferably more than 12 kg / h of hydrogen, can be guaranteed at a very low inlet pressure of only 15 bar.
  • This allows for a shoring in a vehicle sufficient hydrogen supply to a fuel cell with almost empty storage tank, the low input pressures of z. B. 15 bar or 9 bar leads. Determining the flow is first the size of the bore in the seal, ie the so-called seal bore.
  • the dimension of the bore in the valve member and its flow-optimized design is decisive for the flow to the output side.
  • a particularly good tightness is achieved if, at the pointed portion of the slider component, the pressure regulating valve has a seal with a sealing bore, which comes into contact both with the pointed portion of the slider component and with the housing wall.
  • Very good tightness and high durability with good wear behavior and high temperature resistance and high resistance can be achieved if the seal in the region of the tip portion as a sealing material made of a hydrogen-resistant material, in particular polyamideimide exists. It would also be possible to use PL) or PEEK, polyimide, PCTFE or PTFE.
  • the seal is not applied in the first embodiment of the pressure regulator on the tip of the slide member and seals only against metal, but is designed as a sealing ring, and the tapered sides of the tip portion of the slide member abut the sealing ring, whereby a very high tightness is achieved. Furthermore, the wear of the sealing material is low, since the sealing surface is remote from the mass flow of the flowing medium, so that particles that can be in the mass flow, the seal can not destroy or attack. The sealing ring is thus not directly in the flow of the fluid medium, and is thus wear. As a result, a long service life is achieved, which in turn leads to an increased control accuracy ie low outlet pressure tolerance and to a low drift in the outlet pressure over the entire service life.
  • the sealing ring itself is in the housing of the pressure regulator, which is preferably made of aluminum, pressed.
  • the tightness of the pressure control valve inwards, ie inside the pressure control unit of the gas handling unit, eg. B. from high pressure to low pressure part is such that the leakage is less than 10 Ncm 3 / h H 2 .
  • the leakage to the inside, ie the overflow from the high pressure part in the low pressure part is less than 2 ⁇ 10 ⁇ 4 mbar l / s H 2 , even after 10 years, especially after 20 years.
  • the tightness of the entire gas handling unit (GHU) with pressure control valve to the outside, ie into the environment is such that the leakage is less than 10 Ncm 3 / h H 2 over all sealing points.
  • the leakage to the outside less than 2 10 ⁇ 4 mbar l / s H 2 or better than 0.7 Ncm 3 / h, even after 10 years, especially after 20 years.
  • the gas handling unit (GHU) is preferably provided with a filter device.
  • the filter device is designed as a fine filter on the input side in the flow direction in front of the main seal, whereby it is preferably without limitation a filter screen with a mesh size in the range of 2 ⁇ m to 100 ⁇ m, in particular 2 ⁇ to 40 ⁇ , is.
  • a filter screen with a mesh size in the range of 2 ⁇ m to 100 ⁇ m, in particular 2 ⁇ to 40 ⁇ , is.
  • a filter screen is described in the filed for the same applicant, but post-published application PCT / EP2012 / 004692, to which reference is made in its entirety.
  • a sintered filter would also be conceivable or a wire-wound filter as described, for example, in WO 02/00322 A1, the disclosure content of which is incorporated in full.
  • the filter screen can be applied to a wide variety of basic bodies. So a conical body is conceivable or even a cylindrical body.
  • the filter component preferably comprises a base body which forms the support body for the filter screen or filter mesh.
  • a large filter surface is provided in a small space available.
  • the base body allows a multilayer structure of the filter surface, whereby an optimization of the respective required gas flow is possible.
  • such a constructed filter component also has sufficient resistance to pressure peaks and alternating loads in the range 700 bar to 875 bar. Another advantage of such a filter component is a high pressure resistance at a high differential pressure.
  • the gas handling unit has a guide bushing.
  • the guide bush can be made of a high performance polymer.
  • the guide bushing is preferably surrounded by the spring which acts on the piston, but does not have to.
  • the piston in turn preferably has seals, which are preferably arranged between slide member and housing wall and / or piston and housing wall.
  • seals which are preferably arranged between slide member and housing wall and / or piston and housing wall.
  • a piston guide band can also be introduced.
  • the piston guide belt then takes over the management tasks.
  • the O-ring on the piston takes over the management task.
  • the piston can then rub on the housing, which is disadvantageous.
  • the conversion element of the pressure regulating valve can be a diaphragm or a bellows instead of a piston. If the conversion element is a membrane, the inlet pressure is regulated by means of the membrane via the spring to the outlet pressure.
  • the high-pressure measuring device preferably comprises a high-pressure sensor in a housing bore, wherein the housing bore is connected to the high-pressure part of the pressure-regulating device in a fluid-conducting manner, preferably within the housing.
  • a filter for example, a sintered filter with a filter fineness of 20 pm and less, preferably 10 ⁇ , provided so that impurities from the housing bore, such , As abrasion or particles, do not penetrate into the high pressure part of the pressure control device.
  • the sintered filter is first preferably pressed into a bush, preferably made of PEEK, and then into the housing bore.
  • the high-pressure sensor is inserted in a tubular body which is introduced into the bore with the aid of the sealing concept described in WO 2009/100898 for a high-pressure screw joint, the disclosure content of which is included in the present application.
  • the low-pressure measuring device has a low-pressure sensor in a housing bore, wherein the housing bore is fluid-conducting - preferably within the housing - connected to the low pressure part of the pressure control valve of the gas handling unit. A filter is not required as the low pressure sensor sits in the gas flow past the main seal.
  • the overpressure protection unit comprises a pressure relief valve which is integrated into the housing of the gas handling unit (GHU), wherein the overpressure valve preferably triggers at pressures of more than 1.5 times to 2 times a rated output pressure. This ensures that the pressure relief valve does not trip too fast. On the other hand, it is ensured that a triggering takes place before the maximum operating pressure of the low pressure part is reached.
  • GHU gas handling unit
  • an emptying device integrated into the housing in particular in the form of an emptying function, is furthermore provided, wherein the emptying device is connected to the low-pressure part.
  • the pressure relief valve and emptying function are not a separate component, but form a single combined component, i. Overpressure protection and emptying function are integrated in one component.
  • the pressure relief valve is opened with an eccentric.
  • the eccentric can be designed so that it remains open by itself when it is actuated.
  • the gas can either be discharged directly to the outside or via an already installed piped-away discharge line.
  • the discharge line can either only be plugged or it can, for. B. a thread can be attached so that the discharge line can be screwed.
  • pins in particular three pieces, may be arranged on the circumference, which are pressed inwards via a coupling and thereby open the overpressure valve. The advantage of such an embodiment is that venting is possible only with the aid of the coupling.
  • a spring-loaded ring can be attached to the outer diameter of the pressure relief valve, which is able to push balls inward, which then open the inner piston of the pressure relief valve.
  • the spring-loaded ring could be pressed by screwing on an adapter.
  • the adapter would thus be the removal coupling.
  • the flow rate during the removal of the gas via the service connection could also be throttled accordingly with this coupling.
  • the pressure relief valve via a
  • valve piston by screwing on an adapter, the valve piston is raised via a shaft securing ring so that gas, in particular hydrogen, can escape.
  • a discharge line can be attached, for. B. plugged or screwed on a thread to dissipate the outflowing gas, in particular the hydrogen.
  • an eccentric is arranged at the bottom of the valve piston. Via the eccentric, the valve piston can be lifted from below, so that gas, in particular hydrogen, can escape.
  • a discharge pipe can be attached as described in the first embodiment.
  • a pressure screw can be arranged at the bottom of the valve piston. About the pressure screw, the valve piston can be lifted from below, so that gas, especially hydrogen, can escape.
  • a discharge line can, as described in the first embodiment, be mounted.
  • a standardized profile for a coupling can be attached at the outlet of the emptying device.
  • the piped-away discharge line or discharge line must first be dismantled in order to close with the coupling. This is advantageous so that the then escaping hydrogen z. B. is discharged into a container or into the open and not z. B. can be drained into the workshop room.
  • a discharge line, for example a workshop, can also be connected to the discharge line of the vehicle. This disassembly of the discharge line of the vehicle is unnecessary.
  • a low-pressure shut-off valve is provided on the low pressure side of the gas handling unit (GHU), which can be attached directly to the gas handling unit or can also be integrated directly into the gas handling unit.
  • the invention also provides a vehicle with a gas handling unit (GHU), the high-back part of the gas handling unit being fluid-conductively connected to a tank system, in particular a tank container, and the low-pressure part to a consumer, in particular an internal combustion engine of the vehicle or a fuel cell.
  • GHU gas handling unit
  • FIG. 1 shows a sectional view (section A-A according to FIG. 2) of an execution unit of a gas handling unit with pendulum-mounted piston;
  • FIG. 2 shows a plan view of the housing of the gas handling unit (GHU) according to FIG. 1, wherein high-pressure and low-pressure areas are indicated;
  • FIG. 3 shows section B-B through the high-pressure region according to FIG. 2;
  • Figure 4a is a sectional view through a first embodiment of a GHU with a spool member
  • FIG. 4b is a sectional view through a second embodiment of a GHU with spool member Figure 4c 3-dimensional exterior view of a gas handling unit (GHU)
  • GHU gas handling unit
  • Figure 5a is a sectional view of an embodiment of a GHU with rearwardly offset pressure relief valve; 5b-5f different embodiments of a combined pressure relief valve with emptying function;
  • Figure 6 is a sectional view of an embodiment of a GHU with rearwardly offset pressure relief valve and forward laid low pressure outlet;
  • Figure 7 is a sectional view of one embodiment of a GHU with a separate low-pressure shut-off valve;
  • Figure 8 is a sectional view of one embodiment of a GHU with integrated low pressure shut-off valve
  • FIG. 9 shows a sectional view of an embodiment of a GHU with a low-pressure sensor and a one-piece housing laid in the front area;
  • Figure 10 is a sectional view of an embodiment of a GHU with a bellows as a conversion element
  • Figure 11 is a schematic view of a tank system in the GHU.
  • FIG. 1 shows in section AA according to FIG. 2 a gas handling unit (GHU) 1000 with a pressure regulating valve 1 as a pressure regulating device which in the present case is integrated in a housing component 3 without restriction thereto.
  • the housing 3 is divided into two parts into a first housing 3.1 and a second housing 3.2.
  • First and second housings are, as shown in Fig. 2, connected to each other by a flange connection.
  • the pressure regulating valve 1 comprises a piston 5, which is mounted floating on a slider component 10.
  • the floating bearing requires that the piston can oscillate and in this way lateral forces, which are generated for example by the spring, can be compensated.
  • the gas handling unit comprises an input side 20, which is preferably connected to a vehicle tank (not shown).
  • a fluid medium On the input side 20 of the gas handling unit is a fluid medium, in particular a gaseous medium with a pressure.
  • the pressure may be between 10 and 500 bar, in particular between 10 and 700 bar, in particular in the range of 9 bar to 1000 bar.
  • the fluid under high pressure flows via lines through the pressure control valve to the output side 30 of the gas handling unit, wherein the output side of the gas handling unit in the working machine or the fuel cell always an equal pressure of less than 25 bar, in particular 9 bar, is applied.
  • the pressure regulating valve of the gas handling unit is characterized in that the outlet pressure can be regulated to, for example, 9 ⁇ 5 bar, in particular 9 ⁇ 2 bar, particularly preferably 9 ⁇ 1 bar, particularly preferably 9 ⁇ 0.5 bar.
  • a piston 5 is provided as a conversion element, so that the input pressure at the input side 20 by means of the piston 5 via the spring 40 and the slide member 10 to the outlet pressure at the Output side 30 can be reduced.
  • the output-side pressure acts on the piston outer side 50 of the piston 5, since the gas from the input side 20 through the bore 60, which is preferably optimized flow optimized for a flow, is passed into the space 70 on the output side 30 of the gas handling unit, said Outside of the piston 5 is acted upon.
  • the pressure force on the piston counteracts the spring force. If the pressure drops below the set value due to a decrease in fluid medium, the spring opens the control valve. At pressures greater than the set value, the pressure force on the piston exceeds the spring force, so that the sealing tip of the slider member is pressed into the seal.
  • the bore 60 may be relatively large, for example, with a diameter of more than 1, 7 mm, for example, 2.0 mm, due to the high control accuracy of the arrangement according to the invention. Preference is given to diameters of more than 2.2 mm, in particular 3 mm. It is then possible to provide a large mass flow of fluid medium, in particular hydrogen.
  • the size of the seal bore 61 determines the mass flow rate. It can also be used with a large diameter of more than 1.7 mm, for example 2.0 mm or more than 2.2 mm, preferably more than 3 mm.
  • the gas handling unit (GHU) is further characterized in that a sufficient mass flow of, for example, 12 kg / h, preferably 8 kg / h of gaseous medium, in particular hydrogen, can be provided at a pressure of 9 bar, for example, on the low-pressure side of the GHU , even if the pressure on the input side of the GHU (gas handling unit) has fallen by pressure drop in the tank of 1000 bar or 500 bar to a pressure of, for example, 15 bar.
  • openings 80 are provided in the slider member 10, in which bolts 90, which are passed through the piston 5, can engage. In this way, by means of bolts 90, the piston 5 is held against rotation in a predetermined position on the slider component and the output-side pressure is adjusted.
  • the anti-rotation device prevents the piston from rotating out of the threaded position.
  • the piston can be rotated and secured at different positions and the output pressure can be set to different values.
  • the piston 5 is sealed both relative to the housing 3 by means of a seal 7 and to a slide member by means of the seal 9.
  • a space 54 is formed, which is not media-leading.
  • the space 54 is closed by means of a plug 56.
  • the plug has one
  • Membrane via the pressure from the inside to the outside can be discharged when in room 54, z. B. due to leaks, a pressure is built up. On the other On the other hand, the membrane prevents dirt and moisture from entering the space 54.
  • the guide of the slide member 10, on which the piston 5 is mounted floating, is ensured by means of a guide bushing 100. By the guide tilting of the slider component is prevented and thus increases the tightness of the component according to the invention and reduces wear.
  • the slider member 10 is sealed from the housing in front of the sleeve with seal 102.
  • the seal 102 has the purpose of preventing fluid medium, in particular hydrogen, from passing the slider component into the space 54 instead of passing through the bore 60 onto the rear side of the piston 5.
  • the high-pressure part HT of the pressure-regulating valve of the gas-handling unit is separated from the low-pressure part NT of the pressure regulating valve by the seal 200 with sealing bore 61.
  • the seal 200 which separates the high-pressure part HT from the low-pressure part NT, is a seal made of a hydrogen-resistant material, for example polyamideimide, polyimide, PU, PCTFE, PTFE or PEEK, the very good sealing properties, a very good wear behavior, a long service life and a high Temperature resistance and a very high resistance.
  • the slider member 10 has a tip 12 with a slope. Due to the concern of the slope of the tip to seal 200 a very high tightness is achieved. It is particularly preferred if a sealing inwards and outwards for the entire system of 2 ⁇ 10 -4 mbar l / s H 2 or better is achieved, very particularly preferably for 10 years, in particular for 20 years, ie over the entire life cycle the gas handling unit. Pressure control valve. Due to the slope, a sealing cone is formed, which comes with the seal to the plant.
  • the gas handling unit 1000 comprises a pressure relief valve 300.
  • the overpressure valve can be provided with a malfunction of the pressure regulator. remove excessively high pressure.
  • the pressure relief valve according to the invention is integrated in the housing of the gas handling unit.
  • the filter component 3 0 includes, for example, a base body 312, which is preferably conical or cylindrical and a filter screen 314, which is stretched over the main body 312 with a mesh size of 2 to 100 ⁇ , in particular 2 to 40 pm.
  • the gas handling unit on the low-pressure side NT of the pressure control valve comprises an emptying function 400, which allows easy emptying of the tank system with high external tightness.
  • this embodiment allows that a correspondingly formed coupling can be connected leak-free under pressure.
  • the emptying function can also be integrated into the housing, but it does not have to. It would also be a separate arrangement possible. Furthermore, it is possible to integrate the emptying function directly into the pressure relief valve. Embodiments of a combined component of pressure relief valve and emptying functions are shown in Fig. 5b to 5f.
  • FIG. 2 shows a plan view of the gas handling unit which is shown in section AA in FIG.
  • the top view shows the top view of the overpressure valve 300 and the emptying function 400.
  • the input side is marked 20, the output side is 30.
  • the section through the gas handling unit (GHU) along the line AA according to FIG. 1 is shown in FIG.
  • the gas handling unit 1000 may include ports for pressure sensors.
  • section BB shows a high-pressure sensor (not shown), which is accommodated in a connection for a high-pressure sensor, in particular a bore 800.
  • the bore 800 is fluid-conductively connected to the high-pressure part via line 820, ie line 820 opens in front of the seal 200 on the high-pressure side.
  • a sinter filter 830 with a filter fineness of 10 pm shown.
  • the sintered filter 830 is inserted in a bore 840 in the bore 800.
  • the high-pressure sensor in the bore can be used to determine the pressure in the high-pressure part of the gas handling unit.
  • High-pressure part HT and low-pressure part NT in the present embodiment are two components, which are tightly flanged together via a flange 900.
  • FIGS. 4a to 10 show variants of the gas handling unit (GHU), as shown in FIGS. 1 to 3 and described in detail.
  • the gas handling unit according to FIG. 4a differs in that the pressure regulating valve does not comprise a piston that is floatingly mounted on a slide component, but slide member 110 and piston 1105 are firmly connected, resulting in a spool member 1197.
  • Same components as in FIGS. 1 to 3 are designated by 1100 and 11000 respectively increased reference numerals.
  • the spring 1140 acts on a bearing member 1198 and the bearing member 1198 directly on the spool member 1197 in the area 1195.
  • the rounding 1199 allows a point-like storage.
  • Fig. 4a is in the second embodiment, in the slide member and
  • Piston are rigidly connected to each other, the spring against the piston 1105 of the spool member floating, in particular oscillating, stored.
  • the pressure relief valve can, as shown in Figures 5b to 5f, be executed without this
  • the seal is designated 11200, the seal bore 1161.
  • FIG. 4b shows a second embodiment in which pistons 21205 and slide component 21210 have been combined to form a single spool component 21297.
  • a single spool component 21297 is provided to provide the output side to the consumer in the front part of the pressure control valve or the gas handling unit GHU available.
  • the embodiment according to FIG. 4b is implemented as in FIG. 4a, i. Piston 21205 and spool member 21210 are combined to form a spool member 21297.
  • the spool component may be formed in one or more parts. In multi-part design, the items of the spool member are rigidly connected. The same components as in Fig. 1 are marked with 21200 and 212000 higher reference numerals.
  • pistons and slides are rigidly connected to one another to form a spool piston component.
  • the spring is floating, in particular oscillating, stored.
  • the spring acts on a bearing element 21298 and the bearing element 21298 directly on the rounding 21299 of a receiving element 21291.
  • the receiving element 21291 is connected to the spool member, preferably via a thread 21293.
  • the spool component 21297 can be axially displaced relative to the receiving member by twisting. As a result, the bias of the spring 21140 and thus the pressure control unit or the gas handling unit can be adjusted.
  • an engagement for example a hexagonal engagement 21295, is provided at the end of the spool component.
  • the rounding 21299 of the receiving member 21291 in the region in which this acts on the spool member 21297 causes, as in Figure 4a, the oscillating mounting of the slide piston member 21297.
  • Another advantage of the embodiment in Figure 4b is that the spring outside of the pressure arranged area of the gas handling unit is arranged. In the embodiment in FIG.
  • the spring is accommodated in a separate housing 21292, which surrounds a pressure-free space and is arranged on the single-stage pressure regulating valve or the gas handling unit.
  • This housing is detachably connected to the housing of the gas handling unit (GHU) and can be removed without affecting the pressure regulation.
  • the housing 21292 includes an opening. This allows the adjustment of the spring tension of the spring element and thus of the pressure control valve or the gas handling unit during operation or after installation of the pressure control valve or the gas handling unit. An expansion of the spring as in the embodiment of Figure 4a for adjusting the pressure control valve is not necessary. This is a significant improvement over the embodiment shown in Figure 4a.
  • FIG. 4c shows in a 3-dimensional view of the gas handling unit 22000 from the outside, which is shown in Figure 4b in section. Clearly visible is the housing 22002, over the housing 22002 protruding pressure relief valve 212130. Also clearly visible is the input side 21220 of the GHU and output side 21230. FIG. 4c particularly shows the compact design of the GHU 2200, which allows installation in a working space with dimensions of 100 ⁇ 100 ⁇ 180 mm, without lines and piping ,
  • a gas handling unit constructed as in Fig. 1, i. Piston 1205 and slide members 1210 are separate components, with the piston 1205 being oscillated relative to the slider member 1210.
  • the same components as in Fig. 1 are marked by 1200 and 12000 higher reference numerals.
  • the pressure relief valve 12300 can be derived with the unacceptably high pressure from the low pressure part NT of the pressure regulator, offset in the rear part of the gas handling unit.
  • the outlet side 1230 at which the fluid medium is made available at low pressure, lies behind the pressure relief valve 12300, so that the fluid medium, in particular the gas, through the bore or the channel 1260 in the slide component flows from the input side 1220 to the output side 1230. Since the fluid medium or gas is supplied to a consumer on the outlet side, it is necessary that the bore 1260 in the slide member has a sufficient cross-section and is flow-optimized to provide the required minimum mass flow. Although in the embodiment in Fig. 5a slider member and piston are separate components, this is not necessary, of course, these can also be combined to form a common spool member, as shown in Fig. 4. The advantage of such a design is an improved guidance.
  • FIG. 5b shows a first embodiment of a pressure relief valve and an emptying function in a combined component 100000.
  • the piston 100001 of the pressure relief valve 100000 is lifted by means of a pressure screw 100002 from the valve inlet side and thus opened for emptying.
  • a pressure screw can be arranged at the bottom of the valve piston.
  • the valve piston can be lifted from below, so that gas, especially hydrogen, can escape.
  • a discharge line can, as described in the first embodiment, be mounted.
  • the pressure relief valve is opened with an eccentric 100010.
  • the eccentric can be designed so that it keeps itself open when it is actuated.
  • the gas can either be discharged directly to the outside or via an already installed piped-away discharge line (not shown).
  • the discharge line can either only be plugged or it can, for. B. a thread are attached, so that a discharge line can be screwed.
  • the eccentric 100010 raises the valve piston 00001 from the inlet side.
  • FIGS. 5b to 5f The possibility of discharging the gas into the open air via a piped-away discharge line is provided by all the exemplary embodiments illustrated in FIGS. 5b to 5f.
  • three pins may be arranged on the circumference, which are pressed by a coupling inwards and thereby opens the pressure relief valve.
  • the advantage of such an embodiment is that venting is possible only with the aid of the coupling.
  • a spring-loaded ring Constructively can be attached to the outer diameter of the pressure relief valve, a spring-loaded ring, which is able to push balls inward, then opens the inner piston of the pressure relief valve.
  • the spring-loaded ring could be pressed by screwing on an adapter. The adapter would thus be the removal coupling. The flow could also be throttled accordingly with this coupling.
  • valve piston 100001 is raised by screwing on an adapter 100100 via the shaft securing ring 100110 so that gas, in particular hydrogen, can escape.
  • a discharge line 100120 can be attached, eg. B. plugged or screwed on a thread to dissipate the outflowing gas, in particular the hydrogen.
  • a first collet 100500.1 and a second collet 100500.2 are provided.
  • the first collet 100500.1 connects the quick-acting connection 100600 pressure-tight to the pressure relief valve with piston 100001. With the second clamping tongue 100500.2, the valve piston 100001 can be gripped and lifted by means of a mechanical or pneumatic actuation.
  • the pressure relief valve is mounted via a coupling. The advantage of this embodiment is that venting is possible only with the help of the coupling. At the rear end of the component, a discharge line can then be attached, via which the outflowing gas, in particular H2, is discharged.
  • an eccentric is arranged at the bottom of the valve piston. Via the eccentric 100700, the valve piston can be lifted from below so that gas, especially hydrogen, can escape.
  • a discharge line can, as described in the first exemplary embodiment, be attached.
  • the outlet side is available to the consumer in the front part of the gas handling unit (GHU) put.
  • the embodiment according to FIG. 6 is designed as in FIG. 1, ie the piston and slide component are separated. The same components as in Fig. 4 are marked by 1300 and 13000 higher reference numerals.
  • FIG. 7 shows an embodiment of the invention in which a gas handling unit (GHU) according to FIG. 1 is used.
  • GHU gas handling unit
  • the same components as in Fig. 1 are designated by 1400 increased reference numerals.
  • a low pressure shut-off valve 1481 is provided on the exit side 1430 of the gas handling unit shown in FIG. 7, a low pressure shut-off valve 1481 is provided.
  • a higher degree of integration of the GHU is achieved.
  • the valve is used to shut off when z. B. the vehicle is parked. Again, the suspension of the piston is oscillating on the slider member. Slider component and pistons are separate components.
  • Fig. 8 an embodiment of the invention is shown, in turn, the gas handling unit, as in Fig.
  • FIG. 1 shows an embodiment of the invention according to FIG. 1. The same components as in FIG. 1 are marked with reference numbers increased by 1600.
  • the gas handling unit in FIG. 9 is designed in the form of a cover in the part in which the outlet opening 1630 is inserted. Further, the low pressure sensor 16910 is disposed in the front part of the gas handling unit opposite to the relief valve 16300.
  • the advantage of the embodiment according to FIG. 9 can be seen in the fact that a one-piece housing design with cover can be represented.
  • FIG. 10 shows a variant of the invention which essentially corresponds to the variant as in FIG. 6, i. the exit side 1730 is located in front of the slider member 1710.
  • a bellows preferably a metal bellows used.
  • a membrane instead of the preferably designed as a metal bellows 1779 conversion element can be used in a configuration according to FIG. 10, a membrane.
  • the same components as in Fig. 1 are designated by 1700 and 17000 increased reference numerals. Compared to a piston as
  • a bellows has a higher accuracy due to less friction and mass. Furthermore, the bellows has a certain spring stiffness. This allows the use of a weaker spring over the embodiment of Figure 1 or even a waiver thereof.
  • FIG. 11 shows the installation of a gas handling unit (GHU) 1000 according to the invention into a tank system of a vehicle.
  • the different tank reservoirs of the tank system are designated 2000.1, 2000.2, 2000.3.
  • the individual tanks 2000.1, 2000.2, 2000.3 can be refueled via a tank nipple, namely by a reservoir arranged outside the vehicle.
  • a check valve 2300 is inserted in the refueling line from the tank nipple 2100 via the distributor 2200 to the respective tanks 2000.1, 2000.2, 2000.3. introduced.
  • a check valve 2300 is provided in the line from the tank nipple 2100 to the distribution piece 2000. Since a check valve is usually already provided in the tank nipple, the check valve 2300 is used for safety. If, for example, the check valve in the tank nipple is leaking, only the volume between the tank nipple 2100 and the additional check valve 2300 will be drained.
  • the gas handling unit 1000 provides fluid on the low pressure side NT to a consumer, such as a fuel cell or an internal combustion engine 2500.
  • the shut-off valve 2600 is introduced into the fluid path from the low-pressure side NT to the consumer 2500 and, if appropriate, a second pressure regulator.
  • the shut-off valve 2600 which is also referred to ascoreabsperrventil, serves to be able to interrupt the gas flow to the consumer safely, if there were in the pressure control unit or gas handling unit increased inner leaks.
  • the shut-off valve 2600 may be integrated into the gas handling unit 1000 in a preferred embodiment. Alternatively, the shut-off valve 2600 may also be flanged to the gas handling unit.
  • a gas handling unit is also possible in a stationary system, ie, for example, in a stationary fuel cell.
  • the gas handling unit ensures that a certain pressure on the low pressure side NT for the consumer, such as the fuel cell, is constantly available.
  • a pressure sensor (not shown) is also arranged on the low-pressure side, which is inserted into a bore 910, 16910. In difference for the hole for the low pressure sensor no filter is provided here.
  • the bore is fluid-conductively connected to the low-pressure part.
  • the input and the output side pressure of the pressure control valve can be constantly monitored.
  • the sensor arranged on the low-pressure side is part of the low-pressure measuring device, which in turn is part of the gas handling unit (GHU) according to the invention.
  • the GHU is designed so that the component has an electrical conductivity.
  • the invention for the first time specifies a gas handling unit which has a small number of components. This is achieved by integrating the components into a single component.
  • the components of the GHU are preferably unified and standardized to form a component module. This achieves a processing simplification.
  • the gas handling unit according to the invention distinguishes minimum working space while optimizing the overall component size and the weight. Furthermore, by the pressure control device in the form of the pressure valve, a pre-pressure of up to 875 bar single stage mechanically with a high control accuracy to 9 bar, for example 9 ⁇ 5 bar, preferably 9 ⁇ 2 bar, more preferably ⁇ 1 bar, most preferably 9 ⁇ 0.5 bar and low drift with a service life of more than 10 years, in particular more than 20 years to less than 25 bar, in particular about 9 bar, are regulated and a high flow can be provided. Furthermore, the gas handling unit 1000 is characterized by an individually changeable adapter, which can be adapted to the respective fuel line.
  • the gas handling unit makes it possible to connect a tank in a vehicle, which is operated with a fluid medium under high pressure, for example a fuel cell vehicle, the tank directly to the consumer, such as the fuel cell. This makes it possible to connect and leak Minimize weight and space.
  • the oscillating and floating bearing of the piston on the slide component in the pressure control valve of the gas handling unit (GHU) according to the invention makes it possible to compensate for transverse forces of the spring and thus to improve the control accuracy as well as the wear resistance and the response behavior.
  • the spring force is adjustable, preferably (without limitation), prior to delivery of the gas handling unit.
  • the pressure control unit of the gas handling unit with floating piston is characterized by high low wear and very good guides and very high control accuracy and good response.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Fluid Pressure (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Fuel Cell (AREA)

Abstract

L'invention concerne une unité de manipulation des gaz (GHU) pour un système, notamment un véhicule, de préférence un véhicule équipé d'un système de réservoir contenant un milieu fluide, notamment un gaz, de préférence de l'hydrogène gazeux jusqu'à 500 bar, notamment jusqu'à 700 bar, plus particulièrement dans la plage allant de jusqu'à 700 bar à jusqu'à 1000 bar, comprenant - un dispositif de réglage de la pression, notamment une soupape de réglage de la pression - une unité de sécurité contre les surpressions dans le plage de basse pression - un dispositif de mesure de basse pression, caractérisé en ce que le dispositif de réglage de la pression, notamment la soupape de réglage de la pression, l'unité de sécurité contre les surpressions, le dispositif de mesure de basse pression forment un ensemble structurel, notamment sont logés dans un boîtier commun. Le boîtier commun est réalisé en une ou plusieurs parties et l'unité de manipulation des gaz est divisée en une partie à haute pression (HT) et une partie à basse pression (NT).
PCT/EP2013/003823 2012-12-19 2013-12-18 Unité de manipulation des gaz WO2014095050A1 (fr)

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DE201210024851 DE102012024851A1 (de) 2012-12-19 2012-12-19 Druckregelventil
DE201210024850 DE102012024850A1 (de) 2012-12-19 2012-12-19 Gashhandhabungseinheit
DE102012024850.4 2012-12-19
DE102012024851.2 2012-12-19
DE202013004126.9 2013-05-02
DE202013004126.9U DE202013004126U1 (de) 2012-12-19 2013-05-02 Gashandhabungseinheit

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PCT/EP2013/003823 WO2014095050A1 (fr) 2012-12-19 2013-12-18 Unité de manipulation des gaz

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CN113898872A (zh) * 2021-10-18 2022-01-07 詹清楚 一种安全防泄漏的氧气管运输设备
FR3136458A1 (fr) * 2022-06-14 2023-12-15 Manitou Bf Machine de manutention comportant un châssis rotatif et une pile à combustible

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US4033378A (en) * 1973-12-10 1977-07-05 Pauliukonis Richard S Compressed gas valve with constant flow
US5623964A (en) * 1995-08-14 1997-04-29 Tsai; Shun-Ching Safety gas filling valve for vehicles
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DE20010933U1 (de) 2000-06-27 2001-09-13 Weh Erwin Filterteil für Fluidleitungen
US20090071550A1 (en) * 2007-09-14 2009-03-19 Daryll Duane Patterson In-line adjustable regulators
DE202008002211U1 (de) 2008-02-15 2009-03-26 Weh, Erwin Hochdruckverschraubung
US9074703B2 (en) * 2008-10-28 2015-07-07 GM Global Technology Operations LLC Pressure regulator for hydrogen storage system
GB201006347D0 (en) * 2010-04-16 2010-06-02 Linde Ag Gas pressure control valve
EP2676544A1 (fr) 2012-06-22 2013-12-25 Daily Life, LLC. Gant de toilettage pour animaux

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US4033378A (en) * 1973-12-10 1977-07-05 Pauliukonis Richard S Compressed gas valve with constant flow
FR2329010A1 (fr) * 1975-10-20 1977-05-20 Larga Spa Dispositif reducteur de pression avec stabilisation directe de la pression reduite d'aval
US5623964A (en) * 1995-08-14 1997-04-29 Tsai; Shun-Ching Safety gas filling valve for vehicles
US20090014089A1 (en) * 2006-03-06 2009-01-15 Toyota Jidosha Kabushiki Kaisha Valve, Valve Controller, and Fuel Cell System

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WO2014095051A3 (fr) 2014-08-28
DE202013004126U1 (de) 2014-03-24
DE112013006097A5 (de) 2015-09-03
WO2014095051A2 (fr) 2014-06-26

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