EP4155541A1 - Compresseur haute pression et système comprenant un compresseur haute pression - Google Patents

Compresseur haute pression et système comprenant un compresseur haute pression Download PDF

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Publication number
EP4155541A1
EP4155541A1 EP22197706.9A EP22197706A EP4155541A1 EP 4155541 A1 EP4155541 A1 EP 4155541A1 EP 22197706 A EP22197706 A EP 22197706A EP 4155541 A1 EP4155541 A1 EP 4155541A1
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EP
European Patent Office
Prior art keywords
compressor
gas
chamber
membrane
media
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.)
Pending
Application number
EP22197706.9A
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German (de)
English (en)
Inventor
Joachim Löffler
Matthias Böhm
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.)
Kyros Hydrogen Solutions GmbH
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Kyros Hydrogen Solutions GmbH
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Filing date
Publication date
Application filed by Kyros Hydrogen Solutions GmbH filed Critical Kyros Hydrogen Solutions GmbH
Publication of EP4155541A1 publication Critical patent/EP4155541A1/fr
Pending 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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/053—Pumps having fluid drive
    • 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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/1081—Casings, housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F05D2220/321—Application in turbines in gas turbines for a special turbine stage
    • F05D2220/3216—Application in turbines in gas turbines for a special turbine stage for a special compressor stage
    • F05D2220/3219—Application in turbines in gas turbines for a special turbine stage for a special compressor stage for the last stage of a compressor or a high pressure compressor

Definitions

  • a high-pressure compressor and a system with a high-pressure compressor are described, which are designed to compress a gas or gas mixture.
  • high pressure refers to the high-pressure compression of gases and gas mixtures at a compression of 40 bar above atmospheric pressure.
  • the high pressure compressor and system described herein can be used for the high pressure compression of combustible or oxidizing gases or gas mixtures.
  • An example of a combustible gas is hydrogen.
  • An example of an oxidizing gas is oxygen.
  • Flammable or oxidizing gas mixtures can contain hydrogen and oxygen.
  • Gases and gas mixtures with high pressures are required for various applications.
  • the pressures are in the range of several hundred bar or even over 1000 bar.
  • gases or gas mixtures with several 100 bar For example, hydrogen (H 2 ) is usually stored for interim storage in appropriate containers (gas cylinders) at a pressure of about 300 bar.
  • gases or gas mixtures There are difficulties in the compression of the gases or gas mixtures, with conventional solutions having disadvantages.
  • Known compressors for gas and gas mixtures are designed, for example, as piston compressors and have a linearly movable piston head, which compresses and thus compresses a gas or gas mixture introduced into a receiving space by reducing the receiving space. The compressed gas or gas mixture is then discharged and supplied to an application.
  • Such piston compressors are disadvantageous in particular because, due to the movable piston head, a seal must be provided which seals the piston head against a wall delimiting the receiving space. On the one hand, however, this seal cannot provide a complete seal because there is permanent movement between the components to be sealed, and it is subject to enormous wear due to the frequent movement.
  • the task is to provide a solution for the high-pressure compression of gases and gas mixtures which both eliminates the disadvantages of the prior art and also provides an alternative to the prior art that is simple in design and allows high compression of gases and gas mixtures in a small installation space.
  • a solution for high-pressure compression is to be provided which has no moving components that are primarily used for compression and are connected to the environment.
  • a high-pressure compressor for compressing a gas or gas mixture, having a housing that surrounds at least one first compression space and one media chamber, the at least one first compression space and the media chamber in the housing being separated from one another by at least one first membrane are separated, the housing having at least one first connection which opens into the media chamber and via which a medium can be introduced and/or discharged into the media chamber, the housing having at least one second connection which opens into the at least one first compressor chamber and via which a gas or gas mixture can be introduced and/or discharged, wherein the at least one first membrane consists of a polymer-based material and can be deformed to compress the gas or gas mixture that can be introduced into the at least one first compression chamber by introducing a medium into the media chamber.
  • the high-pressure compressor is designed as a membrane compressor and thus causes the compression of the gas or gas mixture that can be introduced into the media chamber by deforming the at least one first membrane.
  • a membrane compressor does not have a seal that is connected to moving components stands, so that there are no sealing problems.
  • the at least one first membrane can, for example, be installed tightly in the housing, with several sealing means being able to be provided.
  • the at least one first membrane can be clamped between two plates, with the at least one first membrane made of polymer-based material being arranged between the plates of the housing, which membrane itself serves as a “sealing ring” due to its material properties.
  • the high-pressure compressor is designed in such a way that the at least one first membrane is in contact with the inner wall of the at least one first compressor chamber in a first position.
  • the space that is available for introducing the gas or gas mixture includes both the media chamber and the at least one first compressor space. The entire volume of the high-pressure compressor is therefore available for compression.
  • the supply is interrupted and the line is sealed off. Compression then takes place, with an incompressible medium (e.g. water, (hydraulic) oil, etc.) being introduced into the media chamber via the at least one first connection.
  • an incompressible medium e.g. water, (hydraulic) oil, etc.
  • the pressure exerted on the at least one first membrane via the medium corresponds to the pressure on the side of the gas or gas mixture, so that compression is carried out essentially without differential pressure within the housing of the high-pressure compressor. This means that the pressure acting on the at least one first membrane inside the housing is the same on both sides.
  • the pressure on the at least one first membrane is increased by the incompressible medium from the media chamber side, so that the at least one first membrane is deformed in the direction of the at least one first compressor chamber, which then leads to a compression of the in the at least one first Compressor room recorded gas or gas mixture leads.
  • the at least one first membrane can be deformed by the incompressible medium until the at least one first membrane rests completely or almost completely on an inner wall of the at least one first compressor chamber. This achieves a high level of compression because the gas or gas mixture can be compressed essentially by the entire volume of the at least one first compressor chamber. Compared to known devices, a higher compression is thus achieved.
  • the at least one first membrane can be deformed by stretching the membrane, with the membrane being designed accordingly in terms of its design and/or internal structure so that the required deformation is achieved.
  • the compression chamber and the media chamber can have essentially the same volume.
  • the at least one first compression chamber and/or the media chamber can essentially have the shape of a spherical segment and the at least one first membrane form the base of the spherical segment.
  • the corresponding inner walls of the at least one first compressor chamber and the media chamber are essentially concave and thus have a curved inner side.
  • the at least one first membrane for example, can then rest against the curved inner walls, with the at least one first membrane being in surface contact with the corresponding inner wall of the at least one first compressor chamber after complete deformation.
  • the compressed gas or gas mixture can then be forced into at least one channel in the housing that communicates with the second port.
  • the essentially concave inner wall of the at least one first compressor chamber can have grooves or the like running towards the center, the depth and width of which can increase or decrease, so that the compressed gas or Gas mixture is pressed into the grooves or the like and discharged from there after the at least one membrane has been completely deformed, taking into account the fact that the at least one first membrane rests against the inner wall of the at least one first compressor chamber in the fully deformed state.
  • the at least one first membrane can be deformable to such an extent that it comes into contact with the inner wall of the at least one first compressor chamber and/or the media chamber from an initial position.
  • the high-pressure compressor can have a second compression chamber which is separated from the media chamber by a second membrane, the media chamber is arranged between the first compression chamber and the second compression chamber, and wherein the housing has at least one fourth connection which opens into the second compression chamber and via which a gas or gas mixture can be introduced and/or discharged.
  • the two membranes are simultaneously deformed in different directions for compressing a gas or gas mixture introduced into the first compression space and into the second compression space. For this purpose, an incompressible medium is fed into the media chamber.
  • the second membrane can be designed analogously to the embodiments described above.
  • the membranes and the associated first and second compression chambers can each be designed and constructed in the same way in the various designs.
  • the layer structure provides a simple structure of the high-pressure compressor.
  • the assembly of the high-pressure compressor easy to do.
  • the individual layers can be fastened to one another via screws or the like, with the screws or the like being guided through bores in the respective layers.
  • the layer structure offers the possibility of tensioning the membranes between the individual layers and making the interior of the housing absolutely gas-tight.
  • the at least one first membrane and/or the second membrane can have a larger surface area than a maximum diameter of the at least one first compression chamber, the media chamber and/or the second compression chamber.
  • the at least one first membrane can thus be arranged areally between individual layers of the housing and also provides a seal. This means that separate sealants can be dispensed with.
  • the at least one first membrane can consist of an elastomer.
  • the elastomer can be an ethylene propylene diene monomer or fluorocarbon rubber.
  • Such materials are particularly suitable for the high-pressure compressor used with combustible gases and gas mixtures, since they have sufficient properties that both prevent diffusion of gas or gas mixture and are not damaged or destroyed by the gas or gas mixture.
  • the deformability of the at least one first membrane results in the advantage that a greater deflection can be achieved compared to simple, disk-like membranes.
  • a significantly increased compression of a gas or gas mixture can be achieved, in particular compared to disc-like ones deformable membranes.
  • the greater deflection of the at least one first membrane also makes it possible to reduce the frequency of the at least one first membrane, ie the movements of the at least one first membrane in the appropriate directions for compression, with performance in relation to the amount of compressed gas provided or gas mixture is at least as large as in a comparable, non-deformable membrane. Lower frequencies have a particularly positive effect on the service life of the at least one first membrane and thus of the high-pressure compressor.
  • the deformability of the at least one first membrane can be supported, for example, by a structured design of the at least one first membrane, with the membrane having changes in its composition or constructive design features (eg grooves and beads - "loudspeakers").
  • the system offers the possibility of high-pressure compression of a gas or gas mixture with at least one high-pressure compressor, which, due to the large deflection of the at least one first membrane, requires lower load changes in order to compress the same amount of gas compared to a conventional compressor, with the Funding and control means also have reduced funding and control cycles. This makes the system easier form. This also simplifies the control of the system.
  • the pressurization of the medium within the at least one media chamber can be carried out via the conveying means, which convey the incompressible medium into the at least one media chamber.
  • the conveying means are designed, for example, as pistons and/or as a pump. It is particularly advantageous if a conveying means is designed as a pump that the piston can be omitted entirely. With such an advantageous configuration, a system without a piston can be used as the conveying and/or pressurizing means.
  • the medium circuit and the medium guided and conveyed via it can be heated and/or air-conditioned at least in the area of the at least one first connection.
  • a viscosity of the incompressible medium is advantageously achieved in this way so that no back pressure is generated on the conveying means when it flows into the at least one medium chamber via the at least one first connection.
  • FIGS. 1-10 show exemplary embodiments of a high-pressure compressor 100, of compressor systems 500 and methods for high-pressure compression in a compressor system 500, which are described below by way of example, and are possible implementations of the technical teaching disclosed herein.
  • the embodiments shown and described below are therefore not limiting and may additionally have features or alternatives indicated herein.
  • Features of the individual embodiments can also be provided reciprocally, even if they are only described for one of the embodiments, provided they are also suitable for this.
  • the high-pressure compressor 100 can be used, for example, to compress a gas, such as hydrogen (H 2 ), or a gas mixture. There is a high-pressure compression of the gas. In the case of high-pressure compression, pressures above approx. 40 bar are used in this context.
  • Conventional high-pressure compressors have a slidably mounted piston head in order to be able to generate the high pressures.
  • the piston head is moved a relatively large distance within a cylindrical tube in order to achieve the high compression of the gas.
  • the high-pressure compressor 100 described herein has the advantage over known high-pressure compressors that the device is relatively small and, moreover, no moving components are provided which are connected to the environment and primarily bring about the high-pressure compression. Therefore, a gas-tight design is guaranteed. In addition, there is no abrasion and thus no destruction of sealing means as in the prior art, because no seals are required and the membrane 200 itself serves as a seal.
  • the component provided for compressing a gas in the form of a first membrane 200 consisting of a polymer-based material is arranged within a housing 120 of the high-pressure compressor 100 and is therefore not in contact with the environment.
  • the high-pressure compressor 100 from 1 has a housing 120 which has a first compressor head 300 and a second compressor head 400 .
  • the compressor heads 300 and 400 are of identical design in the exemplary embodiment shown, so that descriptions of one of the compressor heads 300, 400 also apply to the other compressor head 300, 400.
  • the compressor heads 300, 400 can also differ from one another, in particular in the design and arrangement of connections etc.
  • the compressor heads 300, 400 are made of metal or a metal alloy and each have a solid design Plate 310, 410 on.
  • the design of the compressor heads 300, 400 is in 2 shown.
  • the material used for the compressor heads 300, 400 can be, for example, a stainless steel or a stainless steel alloy, such as a stainless steel alloy from the group 316L.
  • the compressor heads 300, 400 each have a compressor chamber 330 or a media chamber 430 on the opposite sides in the assembled state.
  • the compressor chamber 330 serves to accommodate a gas or gas mixture that is compressed.
  • the media chamber 430 is used to hold a medium that is required for the deformation of the membrane 200 to compress the gas or gas mixture.
  • the compressor space 330 and the media chamber 430 primarily serve to introduce the gas/gas mixture or the medium into the spaces.
  • the membrane 200 During the high-pressure compression, there is in particular a displacement of the membrane 200 such that it comes into contact with the opposite inner walls of the compressor space 330 and the media chamber 430 .
  • a gas/gas mixture or a medium can also be accommodated in the space spanned by the compressor space 330 or the media chamber 430 within the compressor heads 300 , 400 by a corresponding deformation of the membrane 200 .
  • the compressor space 330 and the media chamber 430 are concave.
  • the elastically deformable membrane 200 can be deformed to such an extent that the membrane 200 comes into contact with the inner walls of the compressor space 330 and the media chamber 430 essentially over its entire surface.
  • the membrane 200 which consists of a polymer-based material, is arranged between the compressor heads 300, 400. Elastomers are particularly suitable as the material. In 15 possible configurations of such membranes 200 are shown.
  • the membrane 200 is deformed so that it gradually comes into contact with the inner walls of the compressor space 330 or the media chamber 430 .
  • the formation of the membrane 200 therefore makes it possible to use the entire volume inside the housing 120 of the high-pressure compressor 100, consisting of the compressor space 330 and the media chamber 430, for the compression of a gas/gas mixture.
  • the membrane 200 can have a neutral position ( 15 ) and are deformed from the neutral position in both directions.
  • an incompressible medium is introduced under pressure via the media chamber 430 .
  • the pressure via the medium on the membrane 200 exerts a correspondingly high pressure on the gas/gas mixture, which is then compressed or condensed.
  • water or a (hydraulic) oil can be used as an incompressible medium.
  • Both the compressor space 330 and the media chamber 430 each have at least one connection 320, 420, via which the gas/gas mixture or the medium is fed in and removed again.
  • connection 320, 420 via which the gas/gas mixture or the medium is fed in and removed again.
  • separate connections for supplying and removing the gas/gas mixture or the medium can be provided.
  • the second connection 320 for supplying gas/a gas mixture can be designed such that, starting from a central supply opening in the second connection 320 at the Outside of the compressor head 300 of the connection 320 merges into a plurality of smaller channels that have a small diameter compared to the input diameter. These channels then protrude into the compressor space 330 via corresponding openings. This prevents the membrane 200 from being subjected to a punctiform, central loading when the gas/gas mixture or the medium flows in/out. By splitting the central inlet into many smaller channels, the load is distributed.
  • openings in the compressor chamber 330 and in the media chamber 430 can extend over an area which corresponds, for example, to three times the diameter of the connection 320, 420.
  • the openings of these channels can preferably only open into the area which has the greatest depth in relation to the spatial volume of the compressor space 330 or the media chamber 430 .
  • the supply and discharge of the gas/gas mixture and the medium is controlled via appropriate valves.
  • the membrane 200 itself is arranged between the opposite flat surfaces of the cylinder heads 300, 400 and the plates 310, 410, respectively.
  • the membrane 200 has a surface area that is greater than the surface area of the compressor chamber 330 and the media chamber 430. The membrane 200 therefore rests against the plates 310, 410 in the installed state.
  • the two cylinder heads 300, 400 and the membrane 200 arranged between them are connected to one another via fastening means 110.
  • the plates 310, 410 and the first membrane 200 have continuous openings 314, 414, 220 through which threaded rods 112 are guided.
  • the cylinder heads 300, 400 and the membrane 200 can be connected to one another via nuts 114 and washers 116 and the membrane 200 can be braced. This achieves sealing of the compressor space 330 and the media chamber 430 from the environment. Due to the material of the first membrane 200, a seal is additionally achieved in the area of the contact surfaces between the compressor heads 300, 400 and the first membrane 200. Structures can also be provided in the contact surfaces of the compressor heads 300, 400, which partially deform the membrane 200 in the connected state in order to further improve the gas-tight design of the high-pressure compressor 100.
  • FIG. 12 shows various views of a first and second compressor head of the high-pressure compressor of FIG 1 .
  • Walls 312, 412 are located between the openings 314, 414.
  • the design of the compressor heads 300, 400 is selected in such a way that they have a sufficiently large wall thickness around the compressor space 330 and the media chamber 430.
  • FIG 3 shows a schematic representation of a compressor system 500 with a high-pressure compressor 100 according to the embodiment of FIG 1 .
  • a compressor system 500 can also be equipped with a modification of the 1 shown high pressure compressor 100, which falls under the technical teaching described herein.
  • a compressor system 500 can in principle also have a plurality of high-pressure compressors 100 which are connected in parallel or in series, for example.
  • the compressor system 500 has lines and control devices as well as valves and a piston 510 and a tank 514 in which an incompressible medium is accommodated.
  • the tank 514, the piston 510 and a pump 512 are part of a media circuit, which in turn is part of the compressor system 500.
  • the compressor system 500 has a gas or gas mixture circuit which, in addition to the lines for the supply and discharge of the gas or gas mixture, has control devices, valves, a reservoir 520 in which the gas or gas mixture for high-pressure compression is stored, and a connection to any application 530 on.
  • the compressor system 500 also has overpressure valves which allow gas to escape to the atmosphere if critical, adjustable pressures in the system are exceeded.
  • a gas or gas mixture is compressed from a pressure of at least 10 bar in the reservoir 520 to a maximum of 1000 bar, so that the application 530 has a gas or Gas mixture is provided with a maximum pressure of 1000 bar.
  • FIGS Figures 4-7 The compression process in the compressor system 500 via the high-pressure compressor 100 is shown in FIGS Figures 4-7 shown and is described below with reference to FIG Figures 4-7 described.
  • the gas side or the compressor space 330 of the compressor head 300 is filled with gas from the supply 520 .
  • the valve from the reservoir 520 and a valve 522 are opened, so that gas is supplied into the compressor chamber 330 via the second connection 320 .
  • Gas is stored in the reservoir 520 at a pressure of about 10 bar.
  • the membrane 200 is deflected in the direction of the water side, i.e. in the direction of the media chamber 430, and for this step the pump 512 in the media circuit pumps the medium (water) back into the tank 514, which serves as a storage container for the water.
  • a relief line of the media circuit from the cylinder of the piston 510 is open and due to the higher pressure on the gas side (compression chamber side), the membrane 200 is completely applied to the inner wall of the media chamber 430 of the compressor head 400 and the head of the piston 510 is moved to its starting position.
  • Gas side inlet valve 522 is closed and valve 526 to application 530 is opened.
  • the circuit is closed back into the tank 514 and the relief line, and the water is pushed into the rear side of the cylinder of the piston 510, causing more Volume on the water side of the high-pressure compressor 100 in the compressor head 400 is funded. This change in volume causes the gas to be compressed on the gas side and thus increases the pressure in the application 530.
  • Step 1 to depressurize the high pressure compressor 100 (Fig. 6)
  • Valve 526 to gas application 530 is closed.
  • the water circuit in the media circuit back into the tank 514 is opened and, at the same time, the relief line into the tank 514. Due to the pressure present on the gas side of the high-pressure compressor 100, the head of the piston 510 is pushed back a little, depending on the prevailing pressure Starting position is pushed back and the escaping water is caught in the tank 514.
  • Step 2 to depressurize the high pressure compressor 100 (Fig. 7)
  • the relief line to tank 514 remains open and pump 512 continues to pump back into tank 514 .
  • the valve 524 for pressure relief on the gas side is opened and the pressure can drop very quickly due to the small volumes or the membrane 200 can deflect further towards the water side.
  • valve 522 can then be opened again and the valve 524 can be closed for pressure relief in order to carry out a renewed supply of gas into the compressor chamber 330 of the cylinder head 300 and high-pressure compression.
  • FIG 8 shows an exploded drawing of a high-pressure compressor 100 of a second embodiment.
  • the high-pressure compressor 100 of the second embodiment differs from that in FIG 1
  • the high-pressure compressor 100 shown is that the high-pressure compressor 100 instead of a second compressor head 400 has an intermediate plate 600, a third compressor head 700 and, in addition, a second membrane 200.
  • the third compressor head 700 has an identical design to the first compressor head 300. Instead of a media chamber 430 like the second compressor head 400, the third compressor head 700 has a second compressor chamber 730, into which a gas or gas mixture can be supplied and discharged via a third connection 610 .
  • the third connection 610 can be designed in exactly the same way as the second connection 320. The gas/gas mixture is fed into the high-pressure compressor 100 of the second embodiment via the second connection 320 and the third connection 610 together.
  • the second membrane 200 and the first membrane 200 are of identical design, with the first membrane 200 being arranged between the first compressor head 300 and the intermediate plate 600 and the second membrane 200 between the intermediate plate 600 and the third compressor head 700 .
  • the individual components of the housing 120 are held and clamped to one another by means of fastening means 110, analogously to the first embodiment.
  • the membranes 200 come into planar contact with the surfaces of the first compressor head 300 , the intermediate plate 600 and the third compressor head 700 , which surround the compressor chambers 330 , 730 and the media chamber 620 .
  • the intermediate plate 600 has, as shown in various views in 9 shown, a cylindrical, disc-shaped media chamber 620, in which two opposing third connections 610, an incompressible medium, such as water or (hydraulic) oil, can be introduced and discharged.
  • an incompressible medium such as water or (hydraulic) oil
  • the supply and removal of the incompressible medium can also take place via the two third connections 610 via a corresponding control and valves in such a way that one of the two third connections 610 is only used for media supply and the other third connection 610 only for media removal.
  • the intermediate plate 600 also has openings 630 through which threaded rods 112 can be guided in order to connect the compressor heads 300, 700, the intermediate plate 600 and the membranes 200 to one another.
  • the intermediate plate 600 consists of the same material as the compressor heads 300, 400 and 700.
  • the membranes 200 can be deformed by the introduced medium to such an extent that the membranes 200 come into complete contact with the insides of the compression chambers 330, 730 in order to compress the gas/gas mixture introduced into the compression chambers 330, 730.
  • a medium is introduced into the media chamber 620 for this purpose.
  • the membranes 200 can be shifted to such an extent that they dip into the media chamber 620 and rest against one another. This means that the entire available interior of the housing 120 is available for the high-pressure compression and, analogously to the 1 described first embodiment, a high compression can be achieved.
  • the high-pressure compressor 100 of the second embodiment essentially has a twice as large a volume for compression as the high-pressure compressor 100 of the first embodiment.
  • FIG. 10 shows a schematic representation of a compressor system 500 with a high-pressure compressor 100 according to the second embodiment 8 .
  • the gas is supplied via the valve 522 into the two compressor chambers 330, 730 together.
  • the gas is supplied via connections 320,720.
  • the compressed gas is discharged via further connections which are connected to the compression chambers 330, 730 and are designed, for example, in accordance with the connections 320, 720.
  • the compressed gas is also discharged together.
  • FIG. 1 shows various steps of high-pressure compression in the compressor system according to FIG 10 , wherein the compression steps are those of the compressor system 500 of FIGS Figures 3 to 7 are equivalent to.
  • the gas side or the compressor chambers 330, 730 of the compressor heads 300, 700 of the high-pressure compressor 100 are filled with gas from the supply 520.
  • the valve from the reservoir 520 and the valve 522 are opened, so that gas is supplied to the compressor chambers 330 , 730 via the second connection 320 and the fourth connection 720 .
  • Gas is stored in the reservoir 520 at a pressure of at least 10 bar.
  • the membranes 200 By introducing gas into the compressor chambers 330, 730, the membranes 200 are moved towards the water side, i.e. in Direction of the media chamber 620, and the pump 512 in the media circuit pumps the medium (e.g. water or oil) through the cylinder of the piston 510 and through the media chamber 620, the pressure being coupled to the gas side in the gas circuit via a dome valve 540.
  • the membranes 200 have no differential pressure and are therefore not deflected to either side.
  • the constant flow through the front part of the cylinder of the piston 510 ensures a constant heat exchange of the water, with which a temperature influence on a hydraulic medium for actuating the cylinder of the piston 510 can be neglected.
  • Gas side inlet valve 522 is closed and valve 526 to application 530 is opened.
  • the circuit is closed by the front side of the cylinder of the piston 510 and the water is pressed into the rear side of the cylinder, which means that more volume is pumped into the media chamber 620 via the water side of the high-pressure compressor 100. This change in volume causes the gas to be compressed on the gas side and thus increases the pressure in the application 530.
  • Step 1 to depressurize the high pressure compressor 100 (Fig. 13)
  • Valve 526 to gas application 530 is closed.
  • the water circuit in the media circuit through the front part of the cylinder is opened and, in parallel, a relief line into the tank 514.
  • the pressure applied via the dome valve 540 in the front part of the cylinder moves the head of the piston 510 to its initial position pressed back and the escaping water was collected in the tank 514.
  • Step 2 to depressurize the high pressure compressor 100 (Fig. 14)
  • valve 524 is closed to relieve pressure.
  • the relief line from the cylinder of piston 510 is closed.
  • FIG. 15 shows schematic representations of exemplary embodiments of a first membrane 200 and/or a second membrane 200 for a high-pressure compressor 100 of the first embodiment and the second embodiment.
  • the first membrane 200 and the second membrane 200 can be designed in the various versions, for example, as in 15 shown.
  • the first membrane 200 and the second membrane 200 are disc-shaped.
  • the diameter of the membranes 200 is larger than the diameter of the compressor chambers 330, 730 and the media chambers 430, 620, so that the membranes 200, depending on the embodiment, are flat in Plant with the contact surfaces of the compressor heads 300, 400, 700 and the intermediate plate 600 come.
  • the connecting elements, threaded rods 112 in the embodiments shown, are passed through the openings 220 of the membranes 200 .
  • the membranes 200 are made of a polymer-based material and therefore have "rubber-like" properties. The properties can be significantly adapted depending on the application by an appropriate selection of the polymers used, the thickness of the membranes 200 and other additives.
  • the "rubber-like" properties allow the membranes 200 to be shifted to such an extent that they come into complete contact with the inner walls of the compression chambers 330, 730 and the media chambers 430, 620. In addition, this property enables additional sealing of the interior of the high-pressure compressor 100.
  • the contact surfaces of the corresponding components can also have receiving recesses for the membranes 200, so that apart from the membranes these components are directly in contact stand with each other.
  • the lower representation of 15 12 shows both a membrane 200 having a rectangular shape and a membrane having a round shape.
  • the shape of the membrane 200 is not limited to the shown embodiments. Other shapes include polygonal configurations (eg six-, eight-, ten-, twelve-sided, etc. or correspondingly odd polygons). Essential to the teaching described herein is It is that the membrane 200 protrudes beyond the openings in the compressor heads 300, 400, 700 and the intermediate plate 600 in the area of the compressor chambers 330, 730 and the media chambers 430, 620 over a definable minimum section and this area in the shown embodiments within the fastening sections (openings 220) lies.
  • valve 522 and the valve 524 and the valve 526 can be designed as a check valve.
  • FIG. 5 shows a schematic diagram for high-pressure compression in a compressor system 500, which has a high-pressure compressor 100.
  • a high-pressure compressor 100 can, for example, be a high-pressure compressor 100 of the first embodiment ( 1 ) or a high-pressure compressor 100 of the second embodiment ( 8 ) be.
  • a first step S1 the high-pressure compressor 100 is filled from the supply 520 (see 4 / 11 ).
  • the corresponding valves are opened or closed.
  • step S2 the hub takes place in the application 530 (see figure 5 / 12 ) from the high-pressure compressor 100.
  • step S3 a first intermediate step for depressurizing the high-pressure compressor 100 takes place (see 6 / 13 ), whereby the supply of gas from the high-pressure compressor 100 to the gas application 530 is closed.
  • step S4 a second intermediate step for depressurizing the high-pressure compressor 100 takes place (see figure 7 / 14 ), whereby the pressure on the gas side is relieved by opening the valve 524 and reducing the pressure.
  • step S5 there is a switchover for a new filling of the high-pressure compressor 100, for which purpose the valve 522 is opened again and the valve 524 is closed to relieve the pressure.
  • the entire internal space in the housing 120 of the high-pressure compressor 100 is used for compression. Furthermore, only first membrane 200 and second membrane 200 are moved or deformed within housing 120, so that on the one hand the space required for compression does not depend on the compression process via moving components and, moreover, the compression space is essentially completely sealed from the environment becomes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
EP22197706.9A 2021-09-28 2022-09-26 Compresseur haute pression et système comprenant un compresseur haute pression Pending EP4155541A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021125047.1A DE102021125047A1 (de) 2021-09-28 2021-09-28 Hochdruckverdichter und System mit einem Hochdruckverdichter

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EP4155541A1 true EP4155541A1 (fr) 2023-03-29

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US (1) US20230095491A1 (fr)
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1963993A (en) * 1932-12-29 1934-06-26 William A Dean Pump for refrigerating devices
FR877859A (fr) * 1941-08-02 1943-01-05 Compresseur à gaz
US20080216898A1 (en) * 2007-02-27 2008-09-11 Deka Products Limited Partnership Cassette System Integrated Apparatus
WO2012107756A1 (fr) * 2011-02-07 2012-08-16 Re Hydrogen Ltd Compresseur à gaz produisant de l'hydrogène à haute pression
KR20160090036A (ko) * 2015-01-21 2016-07-29 국방과학연구소 다이어프램 펌프와 작동제어방법.
DE102016004420A1 (de) * 2016-04-12 2017-10-12 Linde Aktiengesellschaft Verdichter mit Doppelmembran und Leckagering

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1963993A (en) * 1932-12-29 1934-06-26 William A Dean Pump for refrigerating devices
FR877859A (fr) * 1941-08-02 1943-01-05 Compresseur à gaz
US20080216898A1 (en) * 2007-02-27 2008-09-11 Deka Products Limited Partnership Cassette System Integrated Apparatus
WO2012107756A1 (fr) * 2011-02-07 2012-08-16 Re Hydrogen Ltd Compresseur à gaz produisant de l'hydrogène à haute pression
KR20160090036A (ko) * 2015-01-21 2016-07-29 국방과학연구소 다이어프램 펌프와 작동제어방법.
DE102016004420A1 (de) * 2016-04-12 2017-10-12 Linde Aktiengesellschaft Verdichter mit Doppelmembran und Leckagering

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DE102021125047A1 (de) 2023-03-30

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