• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Pressurized fluid storage bottle, comprising a sealed envelope (2) defining a gas storage volume, the bottle (1) comprising a device for indicating the shocks to the bottle (1), characterized in that the device for indicating shocks to the bottle (1) comprises an electric circuit (4) made by a conductive ink deposited on at least a part of the bottle (1
    公开号:FR3076594A1
    申请号:FR1850119
    申请日:2018-01-08
    公开日:2019-07-12
    发明作者:Olivier Bardoux；Pierre Blanc-Vannet；Philippe PAPIN；Mathilde Weber
    申请人:Air Liquide SA；LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude；
    IPC主号:
    专利说明:

    The invention relates to a bottle and a fluid storage device. The invention relates more particularly to a pressurized fluid storage bottle, comprising a sealed envelope defining a gas storage volume, the bottle comprising a device for indicating the shocks suffered by the bottle.
    Pressurized gas cylinders (in particular composite and storing flammable gases such as hydrogen) face several safety constraints.
    In the case of transport, the composite pressure cylinders subjected to a fire undergo an irreversible deterioration of their structure. In no case should they burst. A known solution is to activate a fuse ("TRD") which releases the gas via the melting of a eutectic. In the case of a localized fire and / or large tanks, there is a risk that the fuse will not be exposed to the increase in temperature which does not guarantee total safety.
    During the life of a bottle made of composite material, it can suffer numerous damages, some minor and some major. Such damage is not necessarily visible but can cause a significant loss of mechanical performance.
    The known detection methods are not yet satisfactory and are expensive. Improvements in terms of detectors and signal processing are still needed. There is thus no satisfactory system for monitoring the damage to the bottles.
    An object of the present invention is to overcome all or part of the drawbacks of the prior art noted above. To this end, the bottle according to the invention, moreover conforms to the generic definition given in the preamble above, is essentially characterized in that the device for indicating the shocks suffered by the bottle comprises an electrical circuit produced by a conductive ink deposited on at least part of the bottle.
    Furthermore, embodiments of the invention may include one or more of the following characteristics: - the bottle comprises at least one protective strip disposed around the envelope, the electrical circuit being formed on at least part of '' one side of the protective strip, - the protective strip comprises at least one of: a strip of composite material, a strip of epoxy resin, a strip of thermoplastic material, a strip of thermoplastic or resin containing fibers carbon and / or glass, - the protective strip with an electrical circuit is located on the periphery of the bottle, i.e. the electrical circuit is visible on the outside surface of the bottle, - the strip protection provided with an electric circuit is located in the thickness of the bottle, that is to say that the electric circuit is not visible on the external surface of the bottle, - the bottle the comprises several protective strips provided with an electrical circuit which are situated at distinct levels in the thickness of the bottle, - the electrical circuit is a strain gauge, - the bottle comprises several electrical circuits having the form of gauges of deformation and oriented in different directions, - the sealed envelope is made of plastic or metallic material, - the bottle comprises on the outer surface of the envelope at least one layer of composite mechanical reinforcement, The invention also relates to a storage device pressurized fluid and storage integrity control comprising at least one bottle conforming to any one of the characteristics above or below and an electrical measurement member connected to said circuit and configured to measure an electrical quantity or mechanical of said circuit.
    According to other particularities: - the electrical measuring member is configured to measure an electrical voltage or resistance, - the electric measuring member is integral with the at least one bottle. The invention may also relate to any alternative device or process comprising any combination of the above or below characteristics. Other particularities and advantages will appear on reading the description below, made with reference to the figures in which: - Figure 1 shows a sectional view, schematic and partial, of a storage device according to a first example of possible embodiment of the invention, - Figure 2 shows a top view, schematic and partial, of a set of electrical circuits capable of being used by the invention, - Figure 3 shows a sectional view , schematic and partial, of a storage device according to a second possible embodiment of the invention.
    The pressure fluid storage bottle 1 illustrated in FIG. 1 comprises a sealed envelope 2 (liner) defining a gas storage volume. This envelope 2 can be plastic or metallic.
    According to the invention, the bottle 1 comprises an electrical circuit 4 produced by a conductive ink deposited on at least part of the bottle 1. This electrical circuit 4 is provided to indicate the integrity / mechanical state of the bottle 1.
    As illustrated in FIG. 1, a first layer 5 and possibly a second layer 7 of composite reinforcement can be arranged on the exterior surface of the envelope 2.
    For example, the first reinforcing layer 5 comprises a composite structure (carbon fibers with resin). The second reinforcing layer 7 comprises for example a composite structure (glass fibers with resin).
    Preferably, the circuit or circuits 4 are formed on the face of at least one protective strip 3 disposed around the casing 2.
    For example, the first layer 5 and / or the second reinforcing layer 7 comprise or consist of such protective strips 3.
    The protective strip 3 can comprise at least one of: a strip of composite material, a strip of epoxy resin, a strip of thermoplastic material, a strip of thermoplastic or resin containing carbon and / or glass fibers.
    Thus, preferably a conductive ink is deposited on at least one of the strips 3 used for the manufacture of the reinforcing structure of the bottle 1 or on the envelope 2.
    These bands can be of the type marketed under the names “towpreg” or “prepreg” for example.
    After transforming the ink (by drying or cooking for example) an electrical circuit is obtained on the strip 4 which can be used to transmit a signal. The inks used can consist for example of conductive particles or of nanoparticles (graphene for example). The inks can be of the type used on printed circuits.
    The electrical device 6 for reading or measuring this circuit 4 (electrical energy source, signal processing device) can be located in or at the level of a base 8 of the bottle 1 and / or at the level of a valve 9 of bottle 1.
    Alternatively, this measuring member 6 can be separate from the bottle 1 (located at a packaging center for example).
    Thus, the coated layer of the circuit 4 can be on the outer surface of the bottle 1 (last layers with carbon reinforcement or layers with glass reinforcement) or be more in depth and participate in the mechanical strength. It is also possible to print one or more electrical circuits on several layers 5, 7 to follow those which participate most in the mechanical strength of the structure.
    The electrical circuit (s) 4 may be strain gauges on one or more successive folds of the strips 3. This makes it possible to follow the deformations of the bottle 1 and to deduce therefrom the internal pressure or the presence of a permanent deformation due to a shock (as well as its location). The recording of this data over time makes it possible to follow the aging of the bottle 1. It is also possible to have one or more circuits 4 (strain gauges) on the surface of the casing 2 to detect a sag (“ collapse ”).
    In the event of a detected fault, it is possible, for example, to trigger an alert when the bottle 1 is no longer serviceable, prohibit filling by automatically closing the valve 9, or even trigger the purging of bottle 1.
    The monitoring of the state of the bottle 1 can be carried out continuously or punctually at certain stages in the life of the bottle (inspection before filling or periodic maintenance for example).
    In the event of fire, the resin of the layer 5, 7 containing the printed circuit 4 is damaged. The electrical signal of its measurement is then lost.
    The loss / modification of the electrical signal of circuit 4 can be a criterion enabling the emptying of bottle 1.
    FIG. 2 illustrates the arrangement of three strain gauges 4 making it possible to obtain a displacement (extension) measurement in several distinct directions. Each gauge (circuit 4) can be printed on a respective fold of a strip wound on the bottle 1.
    In all these applications, the strips 3 can be wound (wound) around the bottle 1. The circuits 4 can be electrically connected with connectors connected to the measuring member 6 to collect the signal and interpret it.
    This structure can be applied to a unit bottle or a set of bottles integrated in a frame or a truck for example.
    In the embodiment of FIG. 3, a single reinforcing layer 5 comprising or consisting of strips 3 provided with circuits 4 is arranged on the external surface of the casing 2.
    权利要求:
    Claims (13)
    [1" id="c-fr-0001]
    1. Bottle for storing pressurized fluid, comprising a sealed envelope (2) defining a gas storage volume, the bottle (1) comprising a device for indicating the shocks suffered by the bottle (1), characterized in that the device for indicating the shocks suffered by the bottle (1) comprises an electrical circuit (4) produced by a conductive ink deposited on at least part of the bottle (1).
    [2" id="c-fr-0002]
    2. Bottle according to claim 1, characterized in that the bottle (1) comprises at least one protective strip (3) disposed around the casing (2) the electrical circuit (4) being formed on at least one part d 'one side of the protective strip (3).
    [3" id="c-fr-0003]
    3. Bottle according to claim 2, characterized in that the protective strip (3) comprises at least one of: a strip of composite material, a strip of epoxy resin, a strip of thermoplastic material, a strip of thermoplastic or resin containing carbon and / or glass fibers.
    [4" id="c-fr-0004]
    4. Bottle according to any one of claims 2 to 3, characterized in that the protective strip (3) provided with an electrical circuit is located at the periphery of the bottle (1), that is to say that the electrical circuit is visible on the outside surface of the bottle (1).
    [5" id="c-fr-0005]
    5. Bottle according to any one of claims 2 to 4, characterized in that the protective strip (3) provided with an electrical circuit is located in the thickness of the bottle (1), that is to say that the electrical circuit is not visible on the outside surface of the bottle (1).
    [6" id="c-fr-0006]
    6. Bottle according to any one of claims 2 to 5, characterized in that it comprises several strips (3) of protection provided with an electrical circuit (4) which are located at distinct levels in the thickness of the bottle (1).
    [7" id="c-fr-0007]
    7. Bottle according to any one of claims 2 to 6, characterized in that the electrical circuit (4) is a strain gauge.
    [8" id="c-fr-0008]
    8. Bottle according to claim 7, characterized in that the bottle comprises several electrical circuits (4) having the form of strain gauges and oriented in separate directions.
    [9" id="c-fr-0009]
    9. Bottle according to any one of claims 2 to 8, characterized in that the sealed envelope (2) is made of plastic or metallic material.
    [10" id="c-fr-0010]
    10. Bottle according to any one of claims 1 to 9, characterized in that it comprises on the outer surface of the envelope (2) at least one layer (5, 7) of composite mechanical reinforcement.
    [11" id="c-fr-0011]
    11. Device for storing fluid under pressure and for controlling the integrity of the storage comprising at least one bottle (1) according to any one of claims 1 to 10 and an electrical measurement member (6) connected to said circuit ( 4) and configured to measure an electrical or mechanical quantity of said circuit (4).
    [12" id="c-fr-0012]
    12. Device according to claim 11, characterized in that the electrical measurement member (6) is configured to measure an electrical voltage or resistance.
    [13" id="c-fr-0013]
    13. Device according to claim 11 or 12, characterized in that the electrical measuring member (6) is integral with the at least one bottle (1).
    类似技术:
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    FR2502289A1|1982-09-24|LIQUEFIED NATURAL GAS RESERVOIR, IN PARTICULAR METHANE
    US8297126B2|2012-10-30|Integration of strain gauges at inner- and outer liner of a high pressure tank to indicate discharge limit point
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    FR3076593A1|2019-07-12|COMPOSITE BOTTLE AND ITS INSPECTION METHOD
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    同族专利:
    公开号 | 公开日
    FR3076594B1|2019-12-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2611043A1|1987-02-16|1988-08-19|Crouzet Sa|PIEZORESISTIVE GAUGE PRESSURE SENSOR|
    US20080148853A1|2003-09-22|2008-06-26|Hyeung-Yun Kim|Gas tank having usage monitoring system|
    US20050284232A1|2004-06-25|2005-12-29|Rice Brian P|Sensing system for monitoring the structural health of composite structures|
    EP2369292A1|2010-03-15|2011-09-28|Rolls-Royce plc|A Strain Gauge Assembly and Method|
    FR3016424A1|2014-05-30|2015-07-17|Zodiac Aerotechnics|BOTTLE FOR CONTAINING HIGH PRESSURE GAS WITH PRESSURE DETECTOR, TOGETHER AND USE OF THE SAME|FR3103135A1|2019-11-20|2021-05-21|L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude|Method of manufacturing a composite pressurized fluid tank|
    EP3957899A1|2020-08-20|2022-02-23|Hexagon Ragasco AS|Digitally monitoring of composite pressure vessel|
    法律状态:
    2019-01-24| PLFP| Fee payment|Year of fee payment: 2 |
    2019-07-12| PLSC| Publication of the preliminary search report|Effective date: 20190712 |
    2020-01-21| PLFP| Fee payment|Year of fee payment: 3 |
    2021-01-21| PLFP| Fee payment|Year of fee payment: 4 |
    2022-01-19| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1850119|2018-01-08|
    FR1850119A|FR3076594B1|2018-01-08|2018-01-08|BOTTLE AND PRESSURE FLUID STORAGE DEVICE|FR1850119A| FR3076594B1|2018-01-08|2018-01-08|BOTTLE AND PRESSURE FLUID STORAGE DEVICE|
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