EP3885638B1 - Accumulateur de gaz - Google Patents

Accumulateur de gaz Download PDF

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Publication number
EP3885638B1
EP3885638B1 EP20166504.9A EP20166504A EP3885638B1 EP 3885638 B1 EP3885638 B1 EP 3885638B1 EP 20166504 A EP20166504 A EP 20166504A EP 3885638 B1 EP3885638 B1 EP 3885638B1
Authority
EP
European Patent Office
Prior art keywords
material section
membrane
outer membrane
gas
cavity
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.)
Active
Application number
EP20166504.9A
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German (de)
English (en)
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EP3885638A1 (fr
EP3885638C0 (fr
Inventor
Cyriak Laner
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.)
AGROTEL GmbH
Original Assignee
AGROTEL GmbH
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Filing date
Publication date
Application filed by AGROTEL GmbH filed Critical AGROTEL GmbH
Priority to EP20166504.9A priority Critical patent/EP3885638B1/fr
Publication of EP3885638A1 publication Critical patent/EP3885638A1/fr
Application granted granted Critical
Publication of EP3885638C0 publication Critical patent/EP3885638C0/fr
Publication of EP3885638B1 publication Critical patent/EP3885638B1/fr
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Anticipated expiration legal-status Critical

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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
    • F17C3/00—Vessels not under pressure
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0119—Shape cylindrical with flat end-piece
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0176—Shape variable
    • F17C2201/0185—Shape variable with separating membrane
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/052—Size large (>1000 m3)
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/054—Size medium (>1 m3)
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/066—Plastics
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/068—Special properties of materials for vessel walls
    • F17C2203/0685—Special properties of materials for vessel walls flexible
    • 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
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps

Definitions

  • the present invention relates to a device for temporarily storing gaseous substances, in particular a gas storage device, according to the features of independent claim 1.
  • So-called double-membrane gas storage tanks are used in practice for the temporary storage of gases.
  • gas reservoirs are, for example, an additional or external gas reservoir, which are often used in biogas plants, sewage treatment plants or other plants where larger volumes of gas have to be stored, which are mostly fuel gases.
  • At least one gas can be supplied to such gas storage tanks for temporary storage via corresponding lines, which gas can also be removed again if required.
  • Such so-called double-membrane gas accumulators generally comprise an inner membrane or an inner shell which is largely impermeable to gas and which flexibly delimits the gas storage space.
  • the inner membrane is surrounded by a protective membrane, in particular by an outer membrane or an outer flexible cover.
  • at least one fluid preferably in the form of a gas, is introduced into the space between the inner membrane and the outer membrane using a suitable fluid system.
  • this fluid or gas is untreated ambient air that is introduced into the intermediate space.
  • the volume of air or gas introduced into the intermediate space is often also referred to as supporting gas or supporting air.
  • a gas accumulator in which at least one gas, for example in the form of air, can be introduced via a gas connection line into an intermediate space between the inner membrane and the outer membrane, which serves as supporting air.
  • the gas connection line runs along an outside of the outer membrane and ends approximately at the highest point of the gas reservoir in a line provided in the outer membrane Opening so that the gap can be filled with at least one gas.
  • the present gas connection line is a hose which is connected to a feed device on the inlet side.
  • hose Since the hose is routed from the feed device arranged on the bottom side over the entire outer membrane to the central opening at the top point of the gas storage tank, this connection must be of a correspondingly long design.
  • a long hose has the disadvantage, among other things, that the at least one gas has to be pumped or conveyed over a long distance until it finally enters the intermediate space between the inner and outer membrane.
  • such a hose is usually very susceptible to strong winds or heavy snow loads, as a result of which the gas supply into the intermediate space cannot be optimally guaranteed. Since the hose is also coupled to the outer membrane at the highest point of the gas holder, it is difficult to reach, for example, for maintenance or repair work.
  • a gas for example in the form of air
  • a feed device into the intermediate space formed between the inner membrane and the outer membrane.
  • a supply channel extending along the inside or outside of the outer membrane is provided for introducing the gas into the intermediate space.
  • the feed channel is connected to the feed device on the input side. So that the gas or the supporting air can flow from the feed channel into the intermediate space, the outer membrane is provided with a number of gas inlet holes in the area of the feed channel.
  • the feed duct as such is also susceptible to external environmental influences such as snow, hail and/or rain, so that under certain circumstances the feed duct can be pressed off or damaged if the loads are correspondingly high, which in turn creates the risk that the supply of Gas or supporting air can no longer take place or is interrupted in the gap, which has a negative effect on the overall stability and safety of the gas storage tank.
  • the invention is therefore based on the object of providing a device for the temporary storage of gaseous substances, in which the disadvantages of the prior art in the supply of at least one fluid, the gas or the supporting air in the between the inner membrane and outer membrane lying gap can be at least partially avoided.
  • a device is to be made available in which the at least one fluid, the gas or the supporting air can be easily drained from the space between the inner membrane and the outer membrane.
  • the device according to the invention for the temporary storage of gaseous substances which in particular forms a gas storage, comprises at least one gas storage space and an inner membrane, which spatially delimits the gas storage space with an inner side facing the gas storage space.
  • the gas storage space can be flexibly delimited by the inside of the inner membrane, since the inner membrane can adapt, in particular arch, depending on the filling level of the gas storage space.
  • membrane is generally used to refer to enveloping materials that are impermeable to gas or only slightly permeable to the enclosed gas, and not to materials that are partially permeable or partially permeable in one direction, which are normally associated with are assigned to the concept of the membrane.
  • the device according to the invention can, for example, be used in addition to biogas plants, sewage treatment plants or the like, since it can be used, for example, to temporarily store biogas or fuel gases, with the temporarily stored fuel or Biogas can be taken either cyclically or continuously, for example for the operation of combined heat and power plants or the like.
  • the device further comprises an outer membrane which is arranged at least in sections around an outer side of the inner membrane facing away from the gas storage space.
  • the outer membrane can form a kind of protective layer for the inner membrane and protect the inner membrane from environmental influences and undesirable loads, etc.
  • a gap is formed between the outside of the inner membrane and an inside of the outer membrane facing the outside of the inner membrane.
  • membrane the term should generally be used to refer to shell materials that are impermeable to gas or only slightly permeable to the enclosed gas or the supporting air, and not to materials that are partially permeable or partially permeable in one direction , which are usually associated with the term membrane.
  • At least one spatially limited cavity is provided, which is fluidically coupled to the intermediate space.
  • the at least one cavity is formed by two or more material sections, in particular by at least one first material section and by at least one second material section.
  • the first material section is fluid-permeable at least in sections.
  • the first material section can be gas-permeable at least in sections. Ie due to the at least partially fluid-permeable design of the first material section, a fluid flow or a fluid exchange between the at least one spatially limited cavity and the intermediate space in which the supporting air can be located.
  • the first material section has a large number of openings, preferably realized by a lattice structure, a lattice network or a perforated structure or similar perforated structure, whereby in particular the at least one cavity and the intermediate space can be fluidly coupled to one another.
  • the large number of openings can, for example, each have a round, angular, oval or similar cross-section, with passages with different opening contours also being conceivable.
  • the intermediate space can thus be optimally and/or more evenly supplied with the at least one fluid due to the large number of openings in the first material section. Due to the large number of openings, a larger fluid-permeable surface can thus be provided through the first material section, through which the at least one cavity and the intermediate space are fluidically coupled.
  • the first material section is integrated into the outer membrane, in particular into the respective outer membrane segment.
  • the first material section can have or assume at least approximately the same or approximately the same curvature as the outer membrane, which can mean in particular that the first material section can be inserted at least approximately into the outer membrane, which means in particular a contoured insertion.
  • the first material section is arranged slightly offset relative to the inside or outside of the outer membrane, in which case the curvature of the first material section can at least approximately correspond to the curvature of the outer membrane.
  • the gas reservoir can comprise at least two spatially limited cavities.
  • the at least one spatially delimited cavity can be assigned to at least one outer membrane segment and the at least one further spatially delimited cavity can be assigned to at least one further outer membrane segment.
  • the openings in the first material section can be angular, i.e. square, rectangular, hexagonal or similar.
  • the large number of openings each have a size of at least 2 ⁇ 2 mm and at most 20 ⁇ 20 mm, preferably approximately 10 ⁇ 10 mm.
  • these can have a cross section of at least 1 mm and at most 20 mm, preferably approximately 10 mm.
  • an outside of the first material section facing away from the intermediate space is surrounded by the second material section in a largely fluid-tight or insulating manner, i.e. the second material section can completely cover the outside of the first material section.
  • the outside of the first material section can in particular be that side of the first material section which faces away from the intermediate space.
  • At least one feed and/or discharge element is assigned to the second material section, which is designed to be fluidically connected or coupled to at least one feed and/or discharge device, so that at least one fluid can flow via the at least one feed and/or discharge device. or discharge element can be introduced into the at least one cavity and thus into the intermediate space, or the at least one fluid located in the intermediate space via the at least a feed and/or discharge element can be derived from the at least one cavity and thus from the intermediate space.
  • the at least one feed and/or discharge element can be fastened on an outside of the second material section, the outside of the second material section being in particular that side of the second material section which faces away from the at least one cavity.
  • the at least one feed and/or discharge element can be fastened to the outside of the second material section in a form-fitting, non-positive and/or material-locking manner, with combinations of different fastening methods also being conceivable.
  • the at least one feed and/or discharge element can be fastened and/or fixed in a non-positive manner on the outside of the second material section by means of fastening means, such as screws.
  • the at least one feed and/or discharge element can be welded or similarly fastened to the outside of the second material section.
  • the assignment or fastening of the at least one feed and/or removal element on the outside of the second material section also presupposes, of course, that the second material section comprises at least one recess in the area of the at least one feed and/or removal element, which corresponds to the at least one Feeding and / or discharge element is formed.
  • the at least one feed and/or discharge element can be formed, for example, by a connecting piece or a connecting flange.
  • the fluidic connection or coupling between the at least one supply and/or discharge element and the supply and/or discharge device can be formed by at least one line.
  • the at least one line can be formed from a flexible material, in particular in the form of a tube.
  • the at least one feed device can be formed, for example, by a blower or the like.
  • the blower can be designed in such a way that at least one fluid, in particular at least one gas such as air, can be introduced via the at least one feed element into the at least one cavity and thus into the intermediate space.
  • the introduction of at least one fluid into the intermediate space can therefore be necessary in particular in order to generate a defined pressure in the gas accumulator by means of the introduced support fluid or the introduced support air.
  • the defined pressure may be necessary, for example, so that the outer membrane gains stability and can maintain its shape even when external loads and/or forces occur, such as snow and wind loads, i.e. external loads and/or forces can be absorbed by the Outer membrane are added and / or compensated.
  • the inner membrane in particular its outside, can also be subjected to a defined pressure by the at least one fluid introduced into the intermediate space.
  • At least one non-return valve can be assigned to the at least one line.
  • the at least one non-return flap can be downstream of or downstream of the feed device, in particular the blower.
  • the at least one non-return flap can assume two positions, in particular an open and a closed position.
  • the at least one non-return valve can in particular assume an open position if at least one fluid is transported by means of the at least one supply device along the at least one line, which fluid is then introduced into the intermediate space via the at least one cavity.
  • the at least one non-return valve can automatically assume a closed position. In this way it can at least be ensured that the at least one fluid remains in the intermediate space and that the pressure generated by the at least one fluid is at least largely maintained in the intermediate space.
  • a discharge device which is formed by a pressure control unit, can be provided for discharging the at least one fluid located in the intermediate space.
  • the pressure control unit e.g. in the form of a valve, can be designed in such a way that the at least one fluid, in particular at least one gas, located in the intermediate space can be discharged via the at least one supply and/or discharge element from the at least one cavity and thus also from the intermediate space is.
  • the at least one fluid may need to be drained from the intermediate space, for example, if the pressure on the outer membrane and/or on the inner membrane is to be reduced in certain situations, such as when assembling and/or dismantling the gas accumulator.
  • excess fluid can also be discharged by means of the pressure control unit without significantly changing the pressure defined in the intermediate space.
  • the pressure control unit can be assigned to the at least one line and, in particular, be downstream of the non-return valve in terms of flow, i.e. the at least one fluid can be discharged from the intermediate space via the spatially limited cavity via which the at least one fluid is also supplied to the cavity and thus into the intermediate space, i.e. the at least one fluid can be supplied and discharged via the same cavity and thus via the supply and discharge element assigned to the cavity.
  • the pressure control unit can be associated with at least one further spatially limited cavity which is associated with the outer membrane, i.e. in the outer membrane of the gas accumulator at least two spatially limited cavities can be provided in different outer membrane segments of the outer membrane.
  • the at least one fluid can be fed into the intermediate space via the at least one cavity, while the at least one fluid is discharged from the intermediate space via the at least one further cavity.
  • This embodiment has proven particularly advantageous in that the fluid located in the intermediate space is “flushed through” and circulated. In this way, it is also possible to prevent an explosive mixture from building up, for example, in the intermediate space. Such "flushing" is required in particular by the safety requirements for biogas plants according to TRAS 120.
  • the curvature can in particular depend on the flow rate or gas volume of the at least one fluid provided by the at least one supply and/or discharge device, in particular the at least a gas.
  • the second material section can be strongly curved in relation to the outside of the first material section and/or the outer membrane if, by means of the at least one supply and/or discharge device, a correspondingly large fluid flow or gas flow via the at least one supply and/or discharge element in the at least one cavity and is thus directed into the intermediate space.
  • the second material section can be less or less curved compared to the outside of the first material section and/or outer membrane, provided that a correspondingly smaller fluid flow or gas flow via the at least one supply and/or discharge element by means of the at least one supply and/or discharge device is passed into the at least one cavity and thus into the intermediate space.
  • the curvature of the second material section can also be less pronounced than the outside of the first material section and/or the outer membrane if the at least one feed and/or discharge device is used to discharge the at least one feed and/or discharge element the at least one cavity and thus the at least one fluid, in particular the at least one gas, is derived from the intermediate space.
  • At least one recess is provided in the outer membrane, in which the spatially limited cavity, formed in particular by the at least two material sections, is integrated. It can be provided here that the first material section and/or the second material section, in particular with their edge regions or circumferential course, are connected at least in sections to the outer membrane in a force-fitting and/or material-locking manner.
  • the at least one recess can have different shapes.
  • the at least one recess can be trapezoidal, round, angular, rectangular or oval.
  • the first material section can be non-positively and/or materially connected at least in sections to the edge regions of the at least one recess provided in the outer membrane with its edge regions or its circumferential profile.
  • the first material section can be welded and/or glued with its edge areas or its circumferential profile at the edge areas of the at least one recess.
  • the first material section can be connected to its outer surfaces by means of screw and/or rivet connections or edge areas can be connected and/or fastened to the edge areas of the at least one recess.
  • the second material section can be non-positively and/or positively fastened directly to the outside of the outer membrane with its edge regions or its circumferential extent, with the second material section completely covering the first material section.
  • the second material section can be welded and/or glued directly to the outside of the outer membrane with its edge regions or its circumferential profile.
  • the second material section can be connected and/or fastened to the outside of the outer membrane or the respective outer membrane segment by means of screw and/or rivet connections with its edge regions or its circumferential profile.
  • the material connection in particular the welded connection produced by means of high-frequency welding, between the outer membrane and the first material section or the second material section has proven to be advantageous in practice proven because, in contrast to a force-fit connection, this is permanent and cannot be easily torn.
  • first material section and the second material section are non-positively and/or materially connected to one another.
  • first material section and the second material section can be connected to one another at least in sections in a force-fitting and/or material-locking manner at their edge regions.
  • the first material section and the second material section can be connected to one another in a wide variety of ways, at least in sections, at their edge regions.
  • the first material section and the second material section can be welded and/or glued to one another at their edge regions.
  • the first material section or the second material section can thus optionally be fastened to the edge regions of the at least one recess in a material-to-material and/or non-positive manner.
  • the inner membrane and the outer membrane are formed from at least one plastic material, synthetic material or the like.
  • the inner membrane and the outer membrane can preferably be formed from a material which is gas-tight, flame-retardant and UV-coated and has a high tear resistance.
  • the respective material of the inner membrane and the outer membrane can comprise a coating of PVC or the like, at least in sections, preferably over the entire surface.
  • the at least two material sections can be formed from at least one plastic material, synthetic material or the like.
  • the respective material of the inner membrane and the outer membrane can comprise a coating, e.g. made of PVC or a similar material, preferably over the entire surface.
  • the first material section and the second material section can be formed from the same material or from different materials.
  • the at least two material sections are formed from the same material as the inner and outer membranes, as a result of which separate material costs can be saved.
  • the first material section and/or the second material section are formed from different materials compared to the inner and outer membrane.
  • the first material section comprises, at least in sections, areas which are reinforced. Reinforced areas of this type can be formed, for example, in that a further material is assigned at least in sections to the first material section.
  • This further material can be, for example, a plastic material, metallic material or the like.
  • the at least one further material can, for example, be applied to the material of the first material section or integrated into the material of the first material section. Reinforced areas have the advantages, among other things, that the first material section is more dimensionally stable and/or is less susceptible to damage or the like.
  • the at least one spacer can, for example, by a nub or a variety of Knobs or ribs or the like may be formed.
  • Such a spacer element can also help to prevent the openings of the first material section from being closed, for example by the outer membrane being in direct contact with the inner membrane.
  • the outer membrane is formed by a multiplicity of flat outer membrane segments, with the at least one spatially limited cavity being provided in at least one outer membrane segment.
  • the inner membrane can also be formed by a large number of flat inner membrane segments.
  • the number of inner and/or outer membrane segments generally depends on the size of the respective gas reservoir. In the case of small gas reservoirs, for example at least seven to at most fifteen, sixteen or a little more inner and/or outer membrane segments can be sufficient to be able to form a corresponding inner membrane and an outer membrane for a gas reservoir. Larger gas reservoirs can be formed, for example, from at least fifteen to at most forty-eight inner and/or outer membrane segments of the same type that are joined together. Naturally, gas accumulators can also be formed from any number of inner and/or outer membrane segments.
  • the individual outer membrane segments and/or the inner membrane segments can each have a basic shape which corresponds to a spherical segment development, i.e. the individual outer membrane segments have a defined curvature.
  • the individual membrane segments can be bonded to one another to form the inner membrane or the outer membrane.
  • a welded connection can preferably be provided between the individual inner membrane segments or outer membrane segments, i.e. the membrane segments, in particular the outer membrane segments and/or the inner membrane segments, can be welded to one another or to one another at their edge regions or their circumferential extent.
  • the first material section has an area which occupies at least 40% to 70% of the respective outer membrane segment.
  • the first material section can preferably occupy an area of approximately 60% of an outer membrane segment.
  • the first material section in the outer membrane can occupy a total area of at least 0.5% to at most 5%, preferably from approximately 1% to 2%.
  • the respective first material sections of the at least two cavities in the outer membrane can take up a total area of approximately 4%.
  • the gas storage space which accommodates the gaseous substance and whose total volume is variable due to the flexible inner membrane, is formed by a base, an outer wall adjoining the base in the vertical direction, in particular of a hollow-cylindrical design, and an outer wall that covers the upper side and closes off the outside, in particular flexible inner membrane is formed.
  • FIG. 1 shows a perspective sectional view of a device 10 for temporarily storing gaseous substances, which device 10 can also be referred to as a gas storage device 12 .
  • the gas storage device 12 includes a gas storage space 14 which is formed by a base plate 15 and an inner membrane 18 .
  • the inner membrane 18 is anchored in the base plate 15 so that the inner membrane 18 spatially delimits the gas storage space 14 with its inner side facing the gas storage space 14 .
  • the inner membrane 18 remains intact.
  • a gas to be stored can be introduced into the gas storage space 14 via the supply line 45 .
  • the gas in the gas storage space 14 can be discharged again via the discharge line 46 .
  • a completely filled gas storage 12 is characterized, inter alia, in that between the inner membrane 18 and the outer membrane 20 at the zenith or at the highest point a distance of at least 0.3 meters to a maximum of 0.7 meters, in particular from 0, 5 meters is provided.
  • the gas reservoir 12 is preferably used as a supplement in biogas plants or the like, so that, for example, the gaseous substances or gases obtained in biogas plants can be temporarily stored in the gas reservoir 12 .
  • the device 10 can also be used in sewage treatment plants as a clean gas storage or the like.
  • the gas reservoir 12 further comprises an outer membrane 20, which is arranged at least in sections around an outside of the inner membrane 18 facing away from the gas storage space 14, as a result of which the inner membrane 18 is protected from external environmental influences, loads, damage or the like, i.e. the outer membrane 20 functions as a protective cover for the inner membrane 18.
  • Inner membrane 18 and outer membrane 20 are formed from a plastic material that includes a PVC coating.
  • the material of the inner membrane 18 and the outer membrane 20 should preferably be flame retardant and UV-coated and have a high tear resistance.
  • inner membrane 18 and outer membrane 20 used here are not intended to indicate that gas-permeable or partially gas-permeable materials are to be involved in each case. Rather, the terms are industry-standard designations for the flexible enveloping materials, which, however, can already give an indication that the enveloping materials that form the inner membrane 18 and the outer membrane 20 can be permeable to a small extent for the gases located on them, because a hermetic seal is technically hardly possible.
  • the inner membrane 18 and the outer membrane 20 are each formed by a large number of flat membrane segments, with the inner membrane 18 in particular being formed by a large number of flat inner membrane segments and the outer membrane 20 by a large number of flat outer membrane segments 26 (cf. 3 ).
  • the individual membrane segments of the inner membrane 18 and the outer membrane 20 each have a shape which corresponds to a spherical segment development, i.e. the individual membrane segments run from the base plate 15 to the center or zenith 30 of the inner membrane 18 or outer membrane 20 and each point a bulge.
  • the individual membrane segments are each connected to one another with a material fit, the individual membrane segments in particular being welded to one another at their edge regions.
  • the welded connection between the membrane segments was produced in particular by high-frequency welding.
  • the outer membrane 20 is arranged at least in sections around the outside of the inner membrane 18 such that an intermediate space 22 is formed between the outside of the inner membrane 18 and an inside of the outer membrane 20, which faces the outside of the inner membrane 18.
  • the outside of the inner membrane 18 is completely covered or covered by the outer membrane 20 . So that the outer membrane 20 remains in its position, it is also anchored in or on the base plate 15 .
  • the floor slab 15 is preferably a concrete slab.
  • At least one fluid in particular at least one gas
  • the intermediate space 22 is a supporting air space into which at least one gas, for example in the form of air, can be introduced.
  • the at least one gas introduced into the intermediate space 22 exerts pressure on the inside of the outer membrane 20, among other things, so that the outer membrane 20 retains its shape, for example even under wind and/or snow loads or the like. In this way, undesirably occurring stresses or loads can be absorbed by the outer membrane 20 without the inner membrane 18 being adversely affected or damaged.
  • the outside of the inner membrane 18 is also subjected to pressure via the at least one gas introduced into the intermediate space 22, so that the inner membrane 18 is also at least partially kept in shape.
  • the pressure generated on the inner membrane 18 can also be used, for example, to remove the im Gas storage space 14 stored gaseous substances are used by these gaseous substances, for example, are pressed through lines, not shown here.
  • At least one gas can be or can be introduced into the intermediate space 22 by means of the at least one supply device 48
  • at least one spatially limited cavity 24 is provided in the outer membrane 20 (cf. Figures 4A and 4B ) provided, which is fluidically coupled to the intermediate space 22.
  • the feed device 48 or the blower 50 is connected to the at least one cavity 24 via a line 52 which is of tubular design. So that the at least one gas introduced in the intermediate space 22 cannot escape unhindered, for example in the event of a failure of the fan 50 , the line 52 is assigned a non-return valve 54 which is downstream of the fan 50 in terms of flow.
  • line 52 is assigned at least one discharge device 56 .
  • the at least one discharge device is formed by a pressure control unit 58, for example in the form of a valve.
  • the pressure control unit 58 is downstream of the check valve 54 in terms of flow.
  • the at least one gas can escape and/or be discharged from the intermediate space 22 via this pressure control unit 58, which is done, among other things, by the in Figure 1B arrows shown should be made clear.
  • FIG. 2A and 2B Another embodiment of a gas accumulator 12 is shown, wherein the basic structure, including consisting of inner membrane 18 and outer membrane 20, at least largely in the Figures 1A and 1B corresponds to the structure shown.
  • At least one spatially limited cavity 24 is provided in the outer membrane 20 .
  • the at least one spatially delimited cavity 24 is fluidically coupled to a feed device 48 via a hose-shaped line 52 .
  • the feed device 48 is formed by a blower 50, which can generate a defined fluid flow, in particular an air flow.
  • At least one non-return valve 54 is assigned to the line 52 so that an unintentional escape of the at least one gas from the intermediate space 22 is prevented.
  • At least one further spatially limited cavity 24' is provided in outer membrane 20.
  • This at least one further cavity 24' is fluidically coupled via a further tubular line 52' to a discharge device 56, which is formed by a pressure control unit 58, for example in the form of a valve.
  • the at least one fluid in the intermediate space 22 can thus be discharged into the environment via this pressure control unit 58, which in Figure 2B is represented by the arrows.
  • the at least one cavity 24 and the at least one further cavity 24′ are preferably provided on opposite sides of the gas reservoir 12 in the outer membrane 20, the at least one gas present in the intermediate space 22 is advantageously also “flushed through”.
  • the gas storage device 12 comprises a gas storage space 14 which is formed by an outer wall 16 of hollow-cylindrical design and an inner membrane 18 .
  • the inner membrane 18 is stretched around the end face of the outer wall 16 which is open on one side, so that the inner membrane 18 spatially delimits the gas storage space 14 with its inner side facing the gas storage space 14 .
  • the inner membrane 18 is attached to the outer wall 16 by means of appropriate attachment means on the outer wall 16 .
  • an outer membrane 20 is arranged around the inner membrane 18 and is also fastened to the outer wall 16 by means of appropriate fastening means.
  • the at least one gas is fed into the gas storage space 14 in the same way as in the case of the figures 1 and 2 by means of a supply line and a derivative, which are not shown here.
  • At least one spatially limited cavity 24 is provided in the outer membrane 20, which is provided with a (not shown here).
  • the supply and discharge device is fluidically coupled in order to be able to introduce at least one gas into the intermediate space 22 or to be able to derive it from the intermediate space 22 .
  • the structure of the at least one spatially limited cavity 24 goes through the Figures 4A and 4B out. These figures make it clear that the at least one spatially limited cavity 24 is provided or integrated in/in an outer membrane segment 26 of the outer membrane 20 .
  • the at least one cavity 24 is formed by at least two material sections, in particular by a first material section 28 and a second material section 32 .
  • a first material section 28 In order to form a spatially limited cavity 24, at least one recess 34 (cf. 3 ) intended.
  • the first material section 28 is inserted into this recess 34 and is thereby welded with its circumferential profile or edge regions to the edge regions of the at least one recess 34 .
  • the second material section 32 forms an insulating cover for the first material section 28 or acts as an insulating cover
  • the second material section 32 has an area which is slightly larger than the first material section 28 .
  • the second material section 32 is fastened to the respective outer membrane segment 26 in a materially bonded manner with its circumferential profile or edge regions.
  • the circumferential course of the second material section 32 is welded to the outer membrane segment 26 .
  • the integral connection between the first material section 28 or second material section 32 and the outer membrane segment 26 has proven to be advantageous due to the high durability and tear resistance. Such integral connections can also be produced inexpensively and without great effort in production.
  • the first material section 28 is preferably welded to the edge regions of the at least one cutout 34 of the outer membrane segment 26 in such a way that the first material section 28 lies at least approximately in a plane of the outer membrane segment 26 or the outer membrane 20 or that the first material section 28 lies at least approximately in the outer membrane segment 26 is integrated, ie the first material section 28 can include a curvature which corresponds at least approximately to the curvature of the outer membrane segment 26 .
  • the first material section 28 has a basic shape which at least approximately corresponds to the shape of the at least one recess 34 of the respective outer membrane segment 26, i.e. the first material section 28 is at least approximately trapezoidal (cf Figures 5 and 6 ).
  • the first material section 28 is slightly larger than the at least one recess 34, so that the first material section 28 can be welded at the edge regions of the at least one recess 34.
  • the first material section 28 has an area which corresponds to at least 40% to 70% of the respective outer membrane section 26 .
  • the first material section can preferably occupy an area of approximately 60% of an outer membrane segment 26 .
  • the first material section 28 in the outer membrane 20 occupies a total area of at least 0.5% to at most 5%, preferably from about 1% to 2%.
  • the respective first material sections 28 of the at least two cavities 24, 24' in the outer membrane 20 take up a total area of approximately 4%.
  • the first material section 28 is designed to be fluid-permeable, in particular gas-permeable, at least in sections.
  • the first material section 28 comprises a multiplicity of openings, the first material section 28 preferably being formed by a lattice structure or by a lattice network 36 .
  • the numerous openings in the grid 36 are in particular each square, with the openings in the grid 36 having a size of at least 3 ⁇ 3 mm and at most 20 ⁇ 20 mm, preferably 10 mm. It would also be conceivable for the openings to be designed to be rectangular or contoured in some other way.
  • the first material section 28, in particular the grid 36, is surrounded by the second material section 32 in a fluid-tight or insulating manner.
  • an outside of the grid 36, which is on the side facing away from the intermediate space 22, is surrounded by the second material section 32 in a fluid-tight or insulating manner.
  • the second Material section 32 is formed, for example, by a membrane, foil and/or tarpaulin section.
  • the first material section 28 and the second material section 32 are formed by the same material as the inner membrane 18 and the outer membrane 20, i.e. the at least two material sections are formed from at least one plastic material which includes a PVC coating.
  • At least one feed and/or discharge element 38 is assigned to the second material section 32 so that at least one gas can be introduced or can be introduced via the at least one cavity 24 into the intermediate space 22 .
  • the at least one feed and/or discharge element 38 is assigned in particular to an outside of the second material section 32, which outside is the side facing away from the cavity 24.
  • the at least one feed and/or discharge element 38 is formed by a connecting piece 40 .
  • the connecting piece 40 includes a flange 42, which includes a plurality of bores, not shown here.
  • Fastening means 44 for example in the form of screws or rivets, are inserted or inserted into these bores, so that the connecting piece 40 is fastened to the outside of the second material section 32 .
  • the feed and/or discharge element 38 is connected to a feed and/or discharge device 48, 56 (cf. Figures 1 to 2 ) in fluidic connection.
  • the feed and/or discharge device 48, 56 is a blower 50 and/or a pressure control unit 58, by means of which at least one fluid, in particular a gas, can be fed into the at least one cavity 24 and thus into the
  • the intermediate space 22 can be introduced or the at least one fluid located in the intermediate space 22 can be derived or removed via the connecting piece 40 from the at least one cavity 24 and thus also from the intermediate space 22 .
  • the introduction of at least one gas into intermediate space 22 is necessary in order to generate a defined pressure on the inside of outer membrane 20 and on the outside of inner membrane 18 in gas reservoir 12, so that, among other things, outer membrane 20 can withstand external loads and/or Absorb and/or balance forces such as snow and wind loads and/or the inner membrane 18 can be kept at least approximately dimensionally stable.
  • the supply and/or discharge device 48, 56 is designed in such a way that at least one gas can be introduced into the at least one cavity 24 and thus into the intermediate space 22 or the at least one gas located in the intermediate space 22 from the at least one cavity 24 and thus deriving from the intermediate space 22, the pressure prevailing in the intermediate space 22 or the volume of gas in the intermediate space 22 can be adjusted and/or varied as desired via the interaction between the supply and discharge devices 48, 56.
  • connection piece 40 Since the at least one gas can flow either into the at least one cavity 24 or out of the at least one cavity 24 by means of the supply and/or discharge device 48, 56 via the connection piece 40, the connection piece 40 is designed to be passable for both directions of flow.
  • the second material section 32 is convexly curved in relation to the outside of the outer membrane 20 .
  • the curvature can depend in particular on the flow rate or the gas volume of the at least one gas provided by the at least one supply and/or discharge device 48, 56.
  • the convex curvature of the second material section 32 is large compared to the outside of the first material section 28 and/or outer membrane 20 if, by means of the at least one supply device 48, a correspondingly large gas volume is fed via the connecting piece 40 into the at least one cavity 24 and thus into the Gap 22 is passed.
  • the curvature of the second material section 32 is flatter than the outside of the first material section 28 and/or outer membrane 20 if, by means of the at least one supply device 48, a correspondingly small gas volume is fed via the connecting piece 40 into the at least one cavity 24 and thus into the intermediate space 22 is conducted.
  • the curvature of the second material section 32 is also flatter than the outside of the first material section 28 and/or the outer membrane 20 when the at least one gas in the intermediate space 22 is removed from the at least one Cavity 24 and thus from the gap 22 is derived.
  • the figure 5 shows a schematic view of an outer membrane segment 26 of an outer membrane 20, in which at least one cavity 24 can be integrated.
  • the basic shape of the outer membrane segment 26 becomes clear, with the tip 30 of the outer membrane segment 26 forming the center or the zenith of the outer membrane 26 together with the multitude of other outer membrane segments, but not shown here.
  • the basic shape of the outer membrane segment 26 can have a surface which corresponds to a spherical segment development and includes a defined curvature, as is the case, for example Figures 4A and 4B is shown.
  • At least one recess 34 is provided in the outer membrane segment 26 and is at least approximately trapezoidal in shape.
  • the at least one recess 34 is provided in particular in the opposite area of the tapering tip 30 of the outer membrane segment 26 .
  • this recess 34 as in the Figures 4A and 4B shown, which integrates at least one cavity 24, which also has a trapezoidal shape or contour due to the trapezoidal recess 34.
  • the schematic view of 6 shows a first material section 28 in one embodiment, which is formed by a grid 36.
  • the grid 36 is at least largely trapezoidal, and thus largely corresponds to the shape of the recess 34 provided in the outer membrane segment 26.
  • the grid 36 is slightly larger in terms of area than the at least one recess 34 provided in the outer membrane segment 26, since the grid 36 with its outer circumference is welded at the edge of the recess 34.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Claims (10)

  1. Dispositif (10) pour le stockage provisoire de substances gazeuses, notamment réservoir de gaz (12), comprenant au moins
    - une chambre de stockage de gaz (14),
    - une membrane intérieure (18) qui délimite dans l'espace ladite chambre de stockage de gaz (14) par une face intérieure tournée vers la chambre de stockage de gaz (14), ainsi que
    - une membrane extérieure (20) qui est agencée au moins partiellement autour d'une face extérieure de la membrane intérieure (18) opposée à la chambre de stockage de gaz (14), un espace intermédiaire (22) étant formé entre la face extérieure de la membrane intérieure (18) et une face intérieure de la membrane extérieure (20) qui est tournée vers la face extérieure de ladite membrane intérieure (18),
    étant prévu qu'au moins une cavité (24) limitée dans l'espace qui est couplée de manière fluidique audit espace intermédiaire (22) est prévue dans la membrane extérieure (20), notamment dans au moins un segment de membrane extérieure (26) de la membrane extérieure (20)
    caractérisé en ce que
    ladite au moins une cavité (24) est formée par au moins deux sections de matériau, notamment par une première section de matériau (28) et par une deuxième section de matériau (32), la première section de matériau (28) étant réalisée de manière à être au moins partiellement perméable aux fluides, et ladite première section de matériau (28) comprenant une structure de grille, un filet en grille ou une structure perforée de la même manière avec une pluralité d'ouvertures, et ladite première section de matériau (28) étant intégrée dans le segment correspondant de membrane extérieure (26).
  2. Dispositif selon la revendication 1, dans lequel notamment une face extérieure de la première section de matériau (28) est entourée de manière étanche aux fluides ou isolante par la deuxième section de matériau (32).
  3. Dispositif selon l'une quelconque des revendications précédentes, dans lequel est associé à la deuxième section de matériau (32) au moins un élément d'alimentation et/ou d'évacuation (38) qui est réalisé en contact fluidique avec, voire couplé à, un système d'alimentation et/ou d'évacuation (48, 56), de sorte qu'au moins un fluide peut être introduit dans ladite au moins une cavité (24), et ainsi dans l'espace intermédiaire (22), par le biais dudit au moins un élément d'alimentation et/ou d'évacuation (38), ou que ledit au moins un fluide se trouvant dans l'espace intermédiaire (22) peut être évacué de ladite au moins une cavité (24) et, ainsi, de l'espace intermédiaire (22) par le biais dudit au moins un élément d'alimentation et/ou d'évacuation (38).
  4. Dispositif selon la revendication 3, dans lequel ledit au moins un élément d'alimentation et/ou d'évacuation (38) est formé par une tubulure de raccordement (40) ou équivalent.
  5. Dispositif selon l'une quelconque des revendications précédentes, dans lequel la deuxième section de matériau (32) est, vis à vis d'une face extérieure de la première section de matériau (28) et/ou de la membrane extérieure (20), cintrée de manière convexe.
  6. Dispositif selon l'une quelconque des revendications précédentes, dans lequel au moins un évidement (34) est prévu dans la membrane extérieure (20), ladite au moins une cavité (24) limitée dans l'espace étant intégrée dans ledit évidement (34).
  7. Dispositif selon la revendication 6, dans lequel ledit au moins un évidement (34) est réalisé de forme trapézoïdale, circulaire, carrée, rectangulaire ou ovale ou similaire.
  8. Dispositif selon la revendication 6 ou 7, dans lequel la première section de matériau (28) et/ou la deuxième section de matériau (32), notamment avec leurs zones périphériques, sont reliées au moins partiellement à la membrane extérieure (20) par une liaison de force et/ou de matière.
  9. Dispositif selon l'une quelconque des revendications précédentes, dans lequel la membrane extérieure (20) est formée par une pluralité de segments de membrane extérieure (26) à plat, ladite au moins une cavité (24) étant prévue dans au moins un segment de membrane extérieure (26).
  10. Dispositif selon l'une quelconque des revendications 1 à 9, dans lequel la chambre de stockage de gaz (14) accueillant la substance gazeuse et variable dans son volume total en raison de la membrane intérieure souple (18), est formée par un fond, une paroi extérieure (16) se raccordant au fond dans la direction verticale, notamment réalisée en forme de cylindre creux, ainsi que par une membrane intérieure (18) notamment réalisée souple, et recouvrant la paroi extérieure (16) sur sa face supérieure et se fermant vers l'extérieur.
EP20166504.9A 2020-03-27 2020-03-27 Accumulateur de gaz Active EP3885638B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20166504.9A EP3885638B1 (fr) 2020-03-27 2020-03-27 Accumulateur de gaz

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20166504.9A EP3885638B1 (fr) 2020-03-27 2020-03-27 Accumulateur de gaz

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EP3885638A1 EP3885638A1 (fr) 2021-09-29
EP3885638C0 EP3885638C0 (fr) 2023-06-07
EP3885638B1 true EP3885638B1 (fr) 2023-06-07

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114623371B (zh) * 2022-03-13 2023-10-03 无锡恒大电子科技有限公司 一种具有双向密封功能的半导体生产用气柜

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT391181B (de) 1988-03-17 1990-08-27 Sattler Textilwerke Gasspeicher
AT412116B (de) 2003-02-17 2004-09-27 Sattler Ag Gasspeicher
EP2397540A1 (fr) * 2010-06-18 2011-12-21 Sattler AG Réservoir de gaz
EP2746385B1 (fr) * 2012-12-21 2017-12-06 JOPE Beteiligungs GmbH Plafond à double membrane

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EP3885638C0 (fr) 2023-06-07

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