EP4155542A1 - High-pressure compressor and system comprising a high-pressure compressor - Google Patents

Abstract

A high-pressure compressor (100) and a system (500) with a high-pressure compressor (100) are described, which are designed to compress a gas or gas mixture, the high-pressure compressor (100) having a housing (120), which surrounds at least one compression space (330) and one media chamber (430), the compression space (330) and the media chamber (430) in the housing (120) being separated from one another by a membrane (200). The housing (120) has at least one first connection (420) which opens into the media chamber (430) and via which a medium can be fed into and/or discharged from the media chamber (430). The housing (120) has at least one second connection (320) which opens into the compressor chamber (330) and via which a gas or gas mixture can be fed in and/or discharged. The membrane (200) is made of metal or a metal alloy and can be deformed by introducing a medium into the media chamber (430) in order to compress a gas or gas mixture that can be introduced into the compressor chamber (330).

Description

A high-pressure compressor and a system with a high-pressure compressor are described, which are designed to compress a gas or gas mixture.

background

According to the general technical understanding, "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 under high pressure are required for various applications. In some cases, the pressures are in the range of several hundred bar or even over 1000 bar. For example, in applications in the field of energy-generating Facilities or for mobile applications (e.g. vehicles) require gases or gas mixtures with several 100 bar. There are difficulties in the compression of the gases or gas mixtures, with conventional solutions having disadvantages.

State of the art

Known compressors for gas and gas mixtures are designed, for example, as piston compressors and have a linearly movable piston, 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, because of the movable piston, a seal is provided which seals the piston 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.

Furthermore, such a compressor requires—depending on the compression ratio—a lot of installation space.

Task

In contrast, the object 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 provides an alternative to the prior art that is simple and allows a high compression of gases and gas mixtures in a small space. In this way, 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.

Solution

The above-mentioned object is achieved by a high-pressure compressor for compressing a gas or gas mixture, having a housing which surrounds at least a first compression space and a media chamber, the compression space and the media chamber being separated from one another in the housing by a membrane, the Housing has 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, wherein the housing has at least one second connection, which opens into the compressor space and via which a gas or gas mixture enters - and/or can be discharged, wherein the membrane consists of metal or a metal alloy and can be deformed by introducing a medium into the media chamber in order to compress a gas or gas mixture that can be introduced into the compressor 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 membrane. Advantageously compared to piston compressors, such a membrane compressor does not have a seal that is connected to moving components, so that there are no sealing problems. The membrane can, for example, be installed tightly in the housing, with one or more additional sealing means being able to be provided. For example, the Membrane be clamped between two plates, with sealing washers or rings being provided between the plates of the housing and the metal membrane. However, such sealing means are not absolutely necessary.

The high-pressure compressor is designed in such a way that, in a first neutral position, the membrane is in contact with the inner wall of the compressor chamber. Thus, the space that is available for introducing the gas or gas mixture includes both the media chamber and the compressor space. The entire volume of the high-pressure compressor is therefore available for compression.

After a gas or gas mixture has been introduced via the at least one second connection, the supply is interrupted and the line is sealed off. Compression then takes place, with an incompressible medium (eg water, (hydraulic) oil, etc.) being introduced into the media chamber via the at least one first connection. The pressure exerted on the membrane via the medium corresponds to the pressure on the side of the gas or gas mixture, so that compression without differential pressure is carried out within the housing of the high-pressure compressor. This means that the pressure acting on the membrane inside the housing is the same on both sides. As soon as the amount of incompressible medium exceeds a threshold value, the metal diaphragm "snaps over", with the diaphragm being deformed. The threshold value is based on the dimensions of the housing and the media chamber as well as the compressor chamber, the material for the membrane, the amount of gas or gas mixture introduced and the pressure prevailing over the medium and the design of the membrane. For this purpose, the membrane is designed accordingly, so that snapping can take place, which represents a significant advantage over known designs of compressors. In particular, this means that the membrane can be deformed by the incompressible medium until the membrane bears against or almost completely against an inner wall of the 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 high-pressure compressor, consisting of the volume of the media chamber and the volume of the compressor space. Compared to known devices, a higher compression is thus achieved.

The membrane can be deformed by stretching the metal membrane, with the membrane being designed accordingly in terms of its design and/or internal structure so that the required deformation is achieved.

Further advantageous configurations result from developments which are defined by the dependent claims.

In further embodiments, the compression chamber and the media chamber can have essentially the same volume.

For the "snapping" of the metal membrane and its deformation, the membrane can be structured in further embodiments. The structure supports "snapping" and allows for deformation. A "snapping" can occur suddenly or step by step.

The structured training includes all measures, which by influencing the material of the membrane Deformation affects at least one area. For example, structures can be achieved by mechanical deformations or by changing the inner structure of the metal or the metal alloy of the membrane.

In further configurations, the membrane can have elevations and depressions which extend in the radial direction and form a structuring of the metal membrane. In this case, the membrane can be designed essentially similar to a "loudspeaker" and have corresponding beads and corrugations.

In further versions, the membrane can be designed as a geometrically shaped disk and can be referred to as such, the geometric shape also including the structures mentioned above.

In further embodiments, the compression space and/or the media chamber can essentially have the shape of a spherical segment and the membrane can form the base area of the spherical segment. The corresponding inner walls of the compressor space and the media chamber are essentially concave and thus have a curved inner side. The structured membrane, for example, can then rest against the curved inner walls, whereby after a complete deformation of the membrane on the corresponding inner wall either centrally circumferential grooves can arise or the membrane can be deformed to the extent that it is in planar contact with the corresponding inner wall. The compressed gas or gas mixture can then be forced into at least one channel in the housing that communicates with the second port.

In yet other versions, the essentially concave inner walls of the compressor chamber and the media 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 can flow into the Grooves or the like is pressed and discharged from there after a complete deformation of the membrane, so that the fact is taken into account that the membrane rests in the fully deformed state on the inner wall of the compressor chamber. This also applies correspondingly to the introduction of the incompressible medium when the membrane is in contact with the inner wall of the media chamber.

In further embodiments, the compressor space and/or the media chamber can be designed essentially in the form of stepped pyramids or stepped cones, and the membrane can have steps corresponding to the design of the compressor space and/or the media chamber. This can lead to a gradual deformation of the membrane, with the steps of the membrane coming into contact with the corresponding steps of the media chamber or the compression chamber during the deformation process when compressing the gas or gas mixture.

The membrane can be deformable to such an extent that it comes into contact with the inner wall of the compressor space and/or the media chamber from an initial position.

In further embodiments, the housing of the high-pressure compressor can be constructed in layers and have at least a first compressor head with the compressor chamber and a second compressor head with the media chamber, the membrane being arranged between the first compressor head and the second compressor head.

The layer structure provides a simple structure of the high-pressure compressor. In addition, the high-pressure compressor can be assembled easily. For example, 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. Furthermore, the layer structure offers the possibility of tensioning the membrane between the individual layers and of making the interior of the housing absolutely gas-tight using additional sealing elements.

In general, the deformability of the membrane results in the advantage that a larger deflection can be achieved compared to simple, disk-like membranes. A significantly increased compression of a gas or gas mixture can thus be achieved in a small installation space, in particular compared to disk-like, non-deformable membranes. The greater deflection of the membrane also makes it possible to reduce the frequency of the membrane, i.e. the movements of the membrane in the appropriate directions for compression, with the performance in relation to the amount of compressed gas or gas mixture provided being at least as great as with a comparable, non-deformable membrane. Lower frequencies have a particularly positive effect on the service life of the membrane and thus of the high-pressure compressor. The membrane can be deformed in particular by the structured design, as specified above in various versions.

• der Hochdruck-Verdichter ein Gehäuse aufweist, das einen Verdichterraum und eine Medienkammer umgibt, wobei der Verdichterraum und die Medienkammer in dem Gehäuse über eine Membran voneinander getrennt sind,
• der Hochdruck-Verdichter mindestens einen ersten in eine Medienkammer mündenden Anschluss aufweist,
• der erste Anschluss mit dem Medienvorrat über zugehörige Leitungen und korrespondierende Förder- und/oder Steuermittel verbunden sind, so dass ein inkompressibles Medium aus dem Medienvorrat über den ersten Anschluss in die Medienkammer und aus der Medienkammer in den Medienvorrat einbringbar ist,
• der Hochdruck-Verdichter mindestens einen zweiten in den Verdichterraum mündenden Anschluss aufweist,
• der mindestens eine zweite Anschluss mit dem Gas oder Gasgemisch-Vorrat und dem Gas oder Gasgemisch-Lager über zugehörige Leitungen und korrespondierende Förder-und/oder Steuermittel verbunden ist, so dass ein Gas oder Gasgemisch aus dem Gas oder Gasgemisch-Vorrat in den Verdichterraum und aus dem Verdichterraum in das Gas oder Gasgemisch-Lager einbringbar ist, und
• das inkompressible Medium über zugehörige Förder- und/oder Steuermittel mit Druck beaufschlagbar ist, so dass eine Verformung der Membran und hierüber eine Komprimierung des in dem Verdichterraum aufgenommenen Gas oder Gasgemischs erreichbar ist, wozu Leitungen zu und von dem Gas oder Gasgemisch-Vorrat, dem Gas oder Gasgemisch-Lager und dem Medienvorrat über korrespondierende Steuermittel abschließbar sind.

The above-mentioned object is also achieved by a compressor system for high-pressure compression of a gas or gas mixture, having at least one high-pressure compressor according to one of the above-mentioned ones Versions, a gas or gas mixture supply, a gas or gas mixture store, a media supply and conveying means for conveying a gas or gas mixture and an incompressible medium and control means for regulating the flow of the gas or gas mixture and the incompressible medium via associated lines, wherein

• the high-pressure compressor has a housing which encloses a compression space and a media chamber, the compression space and the media chamber being separated from one another in the housing by a membrane,
• the high-pressure compressor has at least one first connection opening into a media chamber,
• the first connection is connected to the media reservoir via associated lines and corresponding conveying and/or control means, so that an incompressible medium can be introduced from the media reservoir into the media chamber via the first connection and from the media chamber into the media reservoir,
• the high-pressure compressor has at least one second connection opening into the compressor chamber,
• the at least one second connection is connected to the gas or gas mixture supply and the gas or gas mixture store via associated lines and corresponding conveying and/or control means, so that a gas or gas mixture from the gas or gas mixture supply can flow into the compressor space and can be introduced from the compressor space into the gas or gas mixture store, and
• the incompressible medium can be pressurized via associated conveying and/or control means, so that the membrane can be deformed and the gas or gas mixture contained in the compressor chamber can be compressed, for which purpose lines to and from the gas or gas mixture supply, the Gas or gas mixture storage and the Media supply can be locked via corresponding control means.

In an advantageous embodiment of the compressor system, the pressure can be applied to the medium within the at least one media chamber via the conveying means, which convey the more 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, so 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.

In a further advantageous embodiment, 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.

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 membrane, requires lower load changes to compress the same amount of gas compared to a conventional compressor, whereby the delivery and Control means also have reduced funding and control cycles. This makes it easier to design the system. This also simplifies the control of the system.

Further advantages, features and configuration options result from the following figure description of exemplary embodiments which are not to be understood as limiting.

Brief description of the drawings

Fig. 1

eine Explosionszeichnung eines Hochdruck-Verdichters;

Fig. 2

verschiedene Ansichten eines ersten und zweiten Verdichterkopfs des Hochdruck-Verdichters von Fig. 1;

Fig. 3

eine schematische Darstellung eines Verdichtersystems mit einem Hochdruck-Verdichter gemäß Fig. 1;

Fig. 4-7

verschiedene Schritte der Hochdruckverdichtung in dem Verdichtersystem gemäß Fig. 3;

Fig. 8

schematische Darstellungen einer bespielhaften Ausführungsform einer Membran für einen Hochdruck-Verdichter; und

Fig. 9

ein schematisches Diagramm zur Hochdruckverdichtung in einem Verdichtersystem.

In the drawings shows:

1

an exploded view of a high-pressure compressor;

2

various views of a first and second compressor head of the high-pressure compressor of FIG 1 ;

3

a schematic representation of a compressor system with a high-pressure compressor according to FIG 1 ;

Figures 4-7

according to various steps of high-pressure compression in the compressor system 3 ;

8

schematic representations of an exemplary embodiment of a membrane for a high-pressure compressor; and

9

a schematic diagram for high pressure compression in a compressor system.

In the drawings, elements provided with the same reference numbers correspond essentially to one another, unless otherwise indicated. In addition, there is no need to show and describe components that are not essential for understanding the technical teaching disclosed herein. In the following, the reference symbols are not repeated for all elements that have already been introduced and illustrated, provided that the elements themselves and their function have already been described or are known to a person skilled in the art.

Detailed description of exemplary embodiments

The figures show an exemplary embodiment of a high-pressure compressor 100, a compressor system 500 and a method 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.

1 shows an exploded view of a high-pressure compressor 100. The high-pressure compressor 100 can be used, for example, to compress a gas, such as hydrogen, 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 in order to be able to generate the high pressures. The piston 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 here has the advantage over known high-pressure compressors that the device is relatively small and, in addition, no moving components are provided that are connected to the environment. Therefore, a gas-tight design is guaranteed. In addition, there is no abrasion and thus no destruction of sealants as in the prior art, because optionally provided seals are not moved and seals can be dispensed with in further versions. The component provided for compressing a gas in the form of a membrane 200 made of metal or a metal alloy 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. In further specific embodiments that are not shown, the compressor heads 300, 400 can also differ from one another, in particular in the design and arrangement of connections etc.

Compressor heads 300, 400 are made of metal or a metal alloy and each have a solid plate 310, 410. 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 for Recording a medium, which is required for the deformation of the membrane 200 to compress the gas or gas mixture.

Here, the compressor space 330 and the media chamber 430 primarily serve to introduce the gas/gas mixture or the medium into the spaces. 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 . Thus, 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 .

In the exemplary embodiment shown, the compressor chamber 330 and the media chamber 430 are designed in such a way that they have steps 332 , 432 . The steps 332, 432 make it possible for the membrane 200 to come 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 metal or a metal alloy, is arranged between the compressor heads 300, 400. In particular, noble metals or noble metal alloys are suitable as the material, preferably a high-grade steel alloy of group 316 L. The membrane 200 is configured in a structured manner. The structuring of the membrane 200 enables the membrane 200 to be deformed in such a way that it can come into contact both with the inner wall of the compressor chamber 330 and with the inner wall of the media chamber 430 . For this purpose, the membrane 200 has beads 210, as in 8 shown schematically.

During the high-pressure compression, the membrane 200 can be deformed due to the beads 210 so that it gradually comes into contact with the stepped inner walls of the compressor space 330 and 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.

Depending on the design of the high-pressure compressor 100 and its components, an adaptation of the compression ratio of gases or gas mixtures can thus be achieved. In particular, the deformability of the membrane 200 is decisive for the compression. The greater the deformability, the greater the compaction. For this purpose, the membrane 200 can have a large number of structures that are necessary for the deformation. Compared to simple metal membranes, which can only be slightly deflected in one direction, for which purpose these are concave or convex (“bowl-like”) depending on the definition, the membrane 200 can also have a neutral position ( 8 ) and are deformed from the neutral position in both directions. The structures in the membrane 200 or the beads 210 also allow the membrane 200 to retain the deformed positions without any further application of force.

In order to deform the membrane 200 for the high-pressure compression of a gas/gas mixture introduced via the compressor space 330 , an incompressible medium is introduced under pressure via the media chamber 430 . This ensures that 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. For example, 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. In further versions, separate connections for supplying and removing the gas/gas mixture or the medium can be provided.

The supply and discharge takes place centrally in the central area of the compressor space 330 or the media chamber 430. In particular, 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 diaphragm 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. These 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 have through openings 314, 414 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. In the area of the contact surfaces between the compressor heads 300, 400 and the membrane 200, at least one sealing ring can additionally be arranged. Furthermore, 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. Furthermore, the membrane 200 can also have the structures required for this, in addition to the structures required for the deformation.

2 FIG. 12 shows various views of a first and second compressor head of the high-pressure compressor of FIG 1 . There are walls 312, 412 between the openings 314, 414. The design of the compressor heads 300, 400 is selected in such a way that they surround the compressor space 330 and the media chamber 430 have a sufficiently large wall thickness around. The wall thickness is to be determined with regard to the internal pressure during high-pressure compression.

3 shows a schematic representation of a compressor system 500 with a high-pressure compressor 100 according to the embodiment of FIG 1 .

In further versions that are not shown, 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. Finally, 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.

In addition to the high-pressure compressor 100, 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. In which In the exemplary embodiment of the compressor system 500 shown, a gas or gas mixture is compressed from a pressure of at least 10 bar in the reservoir 520 to approx. 1200 bar, so that the application 530 is provided with a gas or gas mixture with a pressure of approx. 1200 bar becomes.

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.

Filling the high pressure compressor 100 (Fig. 4)

The gas side or the compressor space 330 of the compressor head 300 is filled with gas from the supply 520 . For this purpose, 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 at least 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.

Hub to application (Fig. 5)

Gas side inlet valve 522 is closed and valve 526 to application 530 is opened. At the same time, the circuit back into the tank 514 and the relief line is closed in the media circuit and the water is pressed into the rear side of the cylinder of the piston 510, whereby more volume is conveyed via the water side of the high-pressure compressor 100 into the compressor head 400. 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.

Subsequently, the valve 522 can be opened again and the valve 524 can be closed for pressure relief in order to perform renewed gas supply in the compression chamber 330 of the cylinder head 300 and a high-pressure compression.

In 8 Schematic representations of an exemplary embodiment of a membrane 200 for a high-pressure compressor 100 are shown. The membrane 200 is designed as a metal membrane and has structural elements that allow deformation. These are structurings of the membrane 200 that enable deformation in such a way that the membrane 200 comes into contact both with the inner wall of the compressor chamber 330 and with the inner wall of the media chamber 430 and can also assume a neutral position.

This can be done by structuring using beads 210, as shown in the figures. However, it is additionally or alternatively possible to change the inner structure of the membrane 200 by introducing additional materials or by weakening areas that are essential for fulfilling the necessary properties, instead of geometric shapes of the membrane 200, which serve for the required deformability .

In one embodiment of the compressor system, the valve 522 and the valve 524 and the valve 526 can be designed as a check valve.

9 FIG. 5 shows a schematic diagram for high-pressure compression in a compressor system 500, which has a high-pressure compressor 100. FIG.

In a first step S1, the high-pressure compressor 100 is filled from the supply 520 (see 4 ). For this purpose, the corresponding valves are opened or closed. In step S2, the hub takes place in the application 530 (see figure 5 ) from the high-pressure compressor 100.

In step S3, a first intermediate step for depressurizing the high-pressure compressor 100 takes place (see 6 ), whereby the supply of gas from the high-pressure compressor 100 to the gas application 530 is closed.

In step S4, a second intermediate step for depressurizing the high-pressure compressor 100 takes place (see 7 ), whereby the pressure on the gas side is relieved by opening the valve 524 and reducing the pressure.

In 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 above procedure can be repeated over and over to achieve continuous high pressure compression for various applications.

Advantageously, the entire internal space in the housing 120 of the high-pressure compressor 100 is used for compression. Furthermore, only the membrane 200 is moved or deformed within the housing 120, so that on the one hand the space required for the compression does not depend on the compression process via moving components and, moreover, a substantially complete sealing of the compression chamber from the environment is achieved.

Reference List

100

high-pressure compressor

110

fasteners

112

threaded rod

114

Mother

116

washer

120

Housing

200

membrane

210

bead

300

compressor head

310

plate

312

Wall

314

opening

320

second connection

330

compressor room

332

Step

400

compressor head

410

plate

412

Wall

414

opening

420

first connection

430

media chamber

432

Step

500

compressor system

510

Pistons

512

pump

514

tank

520

stock

522

Valve

524

Valve

526

Valve

530

Application

Claims (9)

High-pressure compressor for compressing a gas or gas mixture, having a housing (120) which surrounds at least one compression space (330) and one media chamber (430), the compression space (330) and the media chamber (430) in the housing (120) are separated from one another by at least one membrane (200), the housing (120) having at least one first connection (420) which opens into the media chamber (430) and via which a medium flows into and/or into the media chamber (430). can be discharged, the housing (120) having at least one second connection (320) which opens into the compressor chamber (330) and via which a gas or gas mixture can be fed in and/or discharged, the membrane (200) being made of metal or consists of a metal alloy and for compaction in the
Compressor chamber (330) gas or gas mixture that can be introduced can be deformed by introducing a medium into the media chamber (430). The high pressure compressor of claim 1, wherein the compression space (330) and the media chamber (430) have substantially equal volumes. High-pressure compressor according to claim 1 or 2, wherein the membrane (200) is structured. The high-pressure compressor of claim 3, wherein the diaphragm (200) has radially extending peaks and valleys. High-pressure compressor according to one of claims 1 to 4, wherein the compression space (330) and / or the media chamber (430) essentially have the shape of a spherical segment and the membrane (200) forms the base of the spherical segment. High-pressure compressor according to one of Claims 1 to 4, wherein the compression space (330) and/or the media chamber (430) are essentially designed in the manner of a stepped pyramid or stepped cone and the membrane (200) corresponds to the design of the compression space (330) and/or the Media chamber (430) has corresponding steps. High-pressure compressor according to one of Claims 1 to 6, the membrane (200) being deformable to such an extent that it comes into contact with the inner wall of the compressor chamber (330) and/or the media chamber (430) from an initial position. High-pressure compressor according to one of claims 1 to 7, wherein the housing (120) is constructed in layers and at least a first compressor head (300) with the compression chamber (330) and a second
Compressor head (400) with the media chamber (430), wherein the membrane (200) is arranged between the first compressor head (300) and the second compressor head (400). Compressor system for high-pressure compression of a gas or gas mixture, having at least one high-pressure compressor (100) according to one of Claims 1 to 8, a gas or gas mixture supply (520), a gas or gas mixture store, a media supply and conveying means for conveying a gas or gas mixture and an incompressible medium and control means for regulating the flow of the gas or gas mixture and the incompressible medium via associated lines, wherein - The high-pressure compressor (100) has a housing (120) which surrounds a compression space (330) and a media chamber (430), the compression space (330) and the media chamber (430) in the housing (120) via a membrane (200) are separated from each other, - the high-pressure compressor (100) has at least one first connection (420) opening into a media chamber (430), - The first connection (420) is connected to the media reservoir via associated lines and corresponding conveying and/or control means, so that an incompressible medium can flow from the media reservoir via the first connection (420) into the media chamber (430) and out of the media chamber ( 430) can be brought into the media stock, - the high-pressure compressor (100) has at least one second connection (320) opening into the compressor chamber (330), - the at least one second connection (320) is connected to the gas or gas mixture supply (520) and the gas or gas mixture store via associated lines and corresponding conveying and/or control means, so that a gas or gas mixture from the gas or The gas mixture supply (520) can be introduced into the compressor space (330) and from the compressor space (330) into the gas or gas mixture store, and - the incompressible medium can be pressurized via associated conveying and/or control means, so that a deformation of the membrane (200) and thereby a compression of the gas or gas mixture received in the compressor space (330) can be achieved, for which purpose lines to and from the Gas or gas mixture supply (520), the gas or gas mixture store and the media supply can be locked via corresponding control means.

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