EP3882507B1 - Druckgasbehälter, der mit einer elektronischen vorrichtung zur warnung bei abklemmung ausgestattet ist - Google Patents

Druckgasbehälter, der mit einer elektronischen vorrichtung zur warnung bei abklemmung ausgestattet ist Download PDF

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Publication number
EP3882507B1
EP3882507B1 EP21156395.2A EP21156395A EP3882507B1 EP 3882507 B1 EP3882507 B1 EP 3882507B1 EP 21156395 A EP21156395 A EP 21156395A EP 3882507 B1 EP3882507 B1 EP 3882507B1
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EP
European Patent Office
Prior art keywords
gas
flow rate
pressure
clamping
container
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
EP21156395.2A
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English (en)
French (fr)
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EP3882507A1 (de
Inventor
Sofia Andre Dias
Federica BELLINGERI
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Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
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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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/028—Special adaptations of indicating, measuring, or monitoring equipment having the volume as the parameter
    • 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
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • 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
    • F17C2201/056—Small (<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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0157—Details of mounting arrangements for transport
    • F17C2205/0165—Details of mounting arrangements for transport with handgrip
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0188—Hanging up devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0308—Protective caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0329—Valves manually actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0338—Pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/035—Flow reducers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • F17C2205/0364—Pipes flexible or articulated, e.g. a hose
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • F17C2221/017—Helium
    • 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
    • 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
    • F17C2221/031—Air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/036—Control means using alarms
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0443—Flow or movement of content
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0486—Indicating or measuring characterised by the location
    • F17C2250/0491—Parameters measured at or inside the vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0486—Indicating or measuring characterised by the location
    • F17C2250/0495—Indicating or measuring characterised by the location the indicated parameter is a converted measured parameter
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • F17C2260/026—Improving properties related to fluid or fluid transfer by calculation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/04—Effects achieved by gas storage or gas handling using an independent energy source, e.g. battery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/02—Applications for medical applications
    • F17C2270/025—Breathing

Definitions

  • the invention relates to a pressurized gas container, in particular a pressurized gas cylinder, equipped with a fluid dispensing tap comprising an electronic device with a digital display configured to detect a clamping of the gas dispensing conduit and to trigger, if necessary, a clamping alert which in particular is displayed on the digital display, for example a dedicated clamping alert icon.
  • Medical gases such as oxygen, NO/N 2 , N 2 O/O 2 , He/O 2 mixtures, medical air or others, are generally packaged in pressurized gas containers, in particular gas cylinders or canisters. These gas containers are equipped with a distribution tap, with or without an integrated pressure reduction system, used to supply the medical gas and a needle or digital pressure gauge used to display the residual gas pressure. In general, the tap and the pressure gauge are protected by a protective cover, also called a "hat”, used to protect them against shocks, falls, dirt, etc.
  • a protective cover also called a "hat"
  • the document EP-A-2918893 offers such a gas cylinder equipped with an integrated pressure reducing valve or RDI and a mechanical needle pressure gauge
  • the document EP-A-2918892 offers a gas bottle equipped with an electronic device with a digital display screen.
  • a gas bottle is also known as FR3070592A1 .
  • the gas i.e. to draw it from the container, it is common to connect a flexible gas line, such as a plastic hose, to the flow outlet connection of the dispensing valve through which the gas is delivered.
  • the gas can then be delivered through the flexible gas line to a patient who requires it as part of a gas inhalation treatment.
  • the gas may be medical oxygen that is delivered to the patient via a respiratory interface, such as a mask, nasal cannulas, or the like.
  • the flexible gas line typically a flexible hose
  • the flexible gas line is more or less clamped, i.e. crushed, twisted or bent, so that the actual gas flow sent to the patient is not the desired one, in in particular that it is (very) insufficient compared to what is necessary to treat the patient.
  • Such clamping of the flexible gas line i.e. flexible hose, delivering gas to patients bedridden in mechanical and/or electric beds, is recurrent and causes a decrease in the flow of gas, usually oxygen, supplied to patients, which can cause their desaturation (i.e. drop in the O2 content of the blood) and in the worst case, can lead to hypoxemic cardiac arrest and death in some patients.
  • gas usually oxygen
  • clamping creates a treatment safety problem for the patient because, in the event of significant clamping of the gas line, the patient cannot be treated effectively due to a lack of gas, typically oxygen, and therefore desaturates or worse.
  • the problem is therefore to be able to automatically detect as early as possible any clamping, in particular any significant clamping, of the flexible gas line, typically a flexible plastic pipe, connected to the flow outlet connector of a gas distribution tap equipping a gas container and to immediately alert the user in response to such clamping detection.
  • the solution of the invention relates to a pressurized gas container, as disclosed by claim 1.
  • FIG. 1 is a schematic diagram of a pressurized gas container 1 according to the invention, namely here a gas bottle of axis AA, while the Fig. 2 represents an embodiment of such a gas container 1.
  • Gas container 1 of Fig. 1 and Fig. 2 comprises an internal volume 2 for storing pressurized gas, for example more than 200 bar abs (full pressure), and is equipped with a fluid distribution tap 3, such as an RDI, crossed by at least one internal gas passage in fluid communication with the internal volume 2 of the container 1 so as to convey the gas within the body of the gas distribution tap 3 to a flow outlet connection 11 to which a flexible gas pipe 100 is fluidically connected, shown diagrammatically in Fig. 3 .
  • a fluid distribution tap 3 such as an RDI
  • the fluid container 1 is a gas cylinder of axis AA comprising a cylindrical body defining the internal volume 2 for storing gas under high pressure, typically a maximum pressure of 130 to 300 bar abs, or even beyond 300 bar abs, and a neck comprising an orifice communicating with the internal volume 2 and making it possible to draw off the gas from the internal volume 2 or, conversely, to fill it when it is empty.
  • the gas distribution tap 3 is mounted, typically screwed, at the orifice of the neck of the gas cylinder.
  • the gas distribution tap 3 comprises a gas distribution connector or tip, called a flow outlet connector 11, to which a flexible gas line 100, such as a flexible plastic pipe, can be connected, used to convey the gas to a medical device or apparatus using the gas supplied by the tap 3, for example a breathing mask distributing gas to a patient at a flow rate prescribed by a doctor or the like corresponding to a treatment to be followed.
  • a flexible gas line 100 such as a flexible plastic pipe
  • the gas distribution tap 3 comprises a pressure sensor 4 for measuring the gas pressure, within the internal gas passage and/or in the internal volume 2 of the container 1, and providing pressure measurements (i.e. measurement signals) to microprocessor control means 5, i.e. a control device or unit comprising one or more microprocessors implementing one or more algorithms, for example an electronic card carrying one (or more) microprocessors implementing one or more calculation algorithms or others, preferably a microcontroller.
  • microprocessor control means 5 i.e. a control device or unit comprising one or more microprocessors implementing one or more algorithms, for example an electronic card carrying one (or more) microprocessors implementing one or more calculation algorithms or others, preferably a microcontroller.
  • the microprocessor control means 5, configured to process the pressure measurements provided by the pressure sensor 4. They are preferably arranged in the housing of an electronic device 7, for example a digital pressure gauge, fixed to the fluid dispensing tap 3, which includes a digital display 6, such as an LCD screen or the like.
  • a flow rate selection device 12 operable by a user, such as a rotary handwheel, for selecting a desired gas flow rate (Qd) to be delivered through the flow rate outlet connector 11, for example to meet a doctor's prescription or the like.
  • the flow rate selection device 12 may be a rotary handwheel capable of rotating between several angular positions, offset from each other, which each correspond to a given flow rate value, for example selectable gas flow rate values between 0 L/min and 30 L/min, typically between 0 and 25 L/min.
  • the selectable flow rate values may be the following: 0, 0.5, 1, 2, 3, 5, 8, 10, 12, 15, 20, 22 and 25 L/min, or any other value.
  • the flow rate selection device 12 further cooperates with a flow rate adjustment device arranged in the valve body 3 in order to adjust the flow rate to the desired gas flow rate value (Qd), for example the flow rate adjustment device may be a calibrated orifice disc arranged on the gas path in the valve body 3. Such an arrangement is known per se.
  • the position of the flow rate selection device 12 for example the angular position of the rotary handwheel, can be determined using one or more position sensors. This then allows the control means 5 to know the value of the desired gas flow rate (Qd) having been selected. Such an arrangement is also known per se.
  • the flow outlet connection 11 is arranged centrally and coaxially with the flow selection rotary handwheel 12; however, they could also be separated from each other according to other possible embodiments (not shown).
  • the pressure sensor 4 is configured and arranged to measure the pressure of the gas at several successive times (t 1 , t 2 ), for example spaced successive times (t 1 , t 2 ) lasting from a few seconds to tens of seconds, for example a duration of the order of 10 seconds, and then provide the pressure measurements (p 1 , p 2 ) made which correspond to the pressure of the gas measured at these successive times (t 1 , t 2 ).
  • the determination of the time elapsing between the successive instants (t 1 , t 2 ) can be done by means of a time counter, for example internal to the microprocessor control means 5.
  • the pressure measurements (p 1 , p 2 ) made and transmitted by the sensor 14 are in fact signals which represent either pressure values or other quantities, such as voltage or current values, corresponding to pressure values.
  • the microprocessor control means 5 are configured to process the pressure measurement signals (p 1 , p 2 ) determined at successive times (t 1 , t 2 ) and supplied by the pressure sensor 4, which measures the pressure of the gas stored in the container 1, and determine measured pressure values from these measurement signals.
  • these pressure measurements are then processed by the control means 5 to determine, from the pressure measurements (p 1 , p 2 ) carried out at the successive times (t 1 , t 2 ), an actual gas flow rate (Qr) supplied by the outlet connector 11 as a flow rate from the tap 3 to the flexible gas pipe 100, between the successive times (t 1 , t 2 ).
  • Qr actual gas flow rate
  • the internal volume of the gas container (in water equivalent) is a known value that can be stored by storage means 9, such as an EEPROM type computer memory, of the electronic device 7.
  • storage means 9 such as an EEPROM type computer memory
  • gas cylinders equipped with this type of electronic device 7 used to distribute medical oxygen typically have volumes between 1 L and 20 L (water equiv.), typically between 2 L and 15 L, for example, depending on the cylinder considered, the volume can be of the order of 2 L, 3.5 L, 4.6 L, 5 L, 7 L, 10 L, 11 L or 15 L.
  • the storage means 9 can also record other data, such as for example the time elapsing between successive instants (t 1 , t 2 ), successive pressure measurements (p 1 , p 2 )... or other parameters, such as the gas temperature, ambient temperature, position of the selector, configuration of the bottle, filling pressure, presses on the acknowledgment button, alerts...
  • the electronic device 7 for example a digital pressure gauge, which comprises the microprocessor control means 5, typically an electronic card, is housed in an opening or housing provided in the body of the protective cover 14 arranged around the fluid distribution tap 3 and serving to protect it against impacts or other possible deterioration, for example a rigid cover made of polymer and/or metal, as illustrated in Fig. 2 .
  • the digital display 6 of the electronic device 7 comprises a digital screen, for example liquid crystal (LCD) or other, carried by the rigid housing, in in particular the front face 18, of the electronic device 7, as illustrated in Fig. 4 . It is electrically powered by an electrical energy source (not visible) arranged in the cowling 14, for example one or more batteries or cells arranged in a battery housing arranged in the wall of the cowling body and closed by a removable hatch or the like.
  • an electrical energy source not visible
  • arranged in the cowling 14 for example one or more batteries or cells arranged in a battery housing arranged in the wall of the cowling body and closed by a removable hatch or the like.
  • Fig. 3 illustrates a clamping of a flexible gas pipe 100 connected to the gas tap of a gas container according to the invention (not shown).
  • the object 102 which presses on the flexible gas pipe 100 locally deforms 101 its flexible wall, i.e. crushes it. This then causes a clamping, i.e. a restriction of passage causing a drop in flow rate.
  • Other forms of clamping exist, such as for example a bent pipe, i.e. forming an elbow or the like.
  • the triggering of a visual alert can be materialized by a display on the display screen 6 of a specific alert icon 10, for example here a danger triangle, and/or an alphanumeric indication 20 of clamping, for example here the term “CLAMP” or another equivalent term, such as CLAMPAGE, whether in French or in another language, for example CLAMPING in English.
  • a specific alert icon 10 for example here a danger triangle
  • an alphanumeric indication 20 of clamping for example here the term “CLAMP” or another equivalent term, such as CLAMPAGE, whether in French or in another language, for example CLAMPING in English.
  • the triggering of an alert may also be accompanied by the emission of an audible signal and/or a light signal, for example a flashing of the display screen 6 or of one (or more) alert diodes 19 present on the housing of the electronic device 7.
  • the digital display 6 of the electronic device 7 can also display other useful information, for example the value of the desired gas flow rate Qd or actual gas flow rate Qr (in L/min or in another unit), as illustrated in Fig. 4 , or even a gas autonomy (in hours and minutes), for example represented by a bargraph 22.
  • the digital display 6 comprises a screen with a height of, for example, between approximately 29 and 37 cm and a width of, for example, between approximately 39 and 43 cm.
  • the digital display 6 can be arranged in the front panel 18, i.e. the front face, of the housing of the electronic device 7 which is fixed to the fluid distribution tap 3 and housed in an opening in the body of the protective cover 14 protecting the tap 3.
  • the electronic device 7 may further comprise an alert acknowledgement button 21, in particular arranged in its front panel 18, used to acknowledge or stop an alert after it has been triggered.
  • the protective cover 14 may be a simple cover, such as a simple rigid protective shell or envelope without any other functionality, or be more advanced, i.e. include other functionalities, such as for example a carrying handle 15 fixed to the body of the cover 14 by one or more support uprights 16, and/or a mobile (e.g. pivoting or translative) or fixed attachment system 17 allowing the container/tap/cover assembly to be attached, i.e. suspended, to a support, typically to a bed or stretcher bar, or any other rod or the like.
  • a mobile e.g. pivoting or translative
  • the carrying handle 15 is advantageously sized to be able to be grasped manually by a user in order to allow easy handling and/or transport of the gas container/tap/cover assembly.
  • All components requiring electrical energy to operate are electrically powered by an electrical energy source arranged for example in the cover 14, for example an electric cell or battery.
  • a fluid container 1, in particular a gas bottle, equipped with a tap, such as an RDI, protected by a cover according to the invention is suitable for storing and supplying pressurized gas, in particular a gas or medical gas mixture, such as oxygen, NO/ N2 , O2 / N2O or He/ O2 mixture, air or other.
  • a gas or medical gas mixture such as oxygen, NO/ N2 , O2 / N2O or He/ O2 mixture, air or other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Claims (9)

  1. Druckgasbehälter (1), insbesondere eine Gasflasche, umfassend ein Innenvolumen (2) zur Speicherung von Druckgas und umfassend ferner:
    - ein Fluidabgabeventil (3), umfassend einen Volumenstrom-Austrittsanschluss (11), an den eine flexible Gasleitung (100) angeschlossen ist,
    - eine Volumenstromauswahlvorrichtung (12), die es ermöglicht, einen Soll-Volumenstrom (Qd) auszuwählen, der von dem Volumenstrom-Austrittsanschluss (11) abzugeben ist, wobei die Volumenstromauswahlvorrichtung (12) ein drehbares Rad umfasst, das dazu ausgestaltet ist, sich zwischen mehreren winklig zueinander versetzten Stellungen zu bewegen, wobei jede Stellung einem gegebenen Soll-Gasvolumenstromwert (Qd) zwischen 0 und 30 L/min entspricht, wobei der Soll-Volumenstromwert (Qd) von dem Benutzer durch Betätigen des drehbaren Rads ausgewählt wird,
    - einen Drucksensor (4), um den Druck des Gases zu mehreren aufeinander folgenden Zeitpunkten (t1, t2) zu messen und Druckmessungen (p1, p2) auszugeben, die dem zu den aufeinander folgenden Zeitpunkten (t1, t2) gemessenen Druck des Gases entsprechen, und
    - Ansteuerungsmittel mit Mikroprozessor (5), die dazu ausgestaltet sind, die von dem Drucksensor (4) ausgegebenen Druckmessungen (p1, p2) zu verarbeiten, dadurch gekennzeichnet, dass die Ansteuerungsmittel (5) in einer elektronischen Vorrichtung (7) mit digitaler Anzeige (6) angeordnet sind, die an dem Fluidabgabeventil (3) befestigt ist, und ferner dazu ausgestaltet sind:
    a) einen Ist-Gasvolumenstrom (Qr), der von dem Volumenstrom-Austrittsanschluss (11) des Ventils an die flexible Gasleitung (100) zwischen den aufeinander folgenden Zeitpunkten (t1, t2) ausgegeben wird, ausgehend von den Druckmessungen (p1, p2), die zu den aufeinander folgenden Zeitpunkten (t1, t2) vorgenommen werden, zu ermitteln,
    b) den Ist-Gasvolumenstrom (Qr) mit dem Soll-Gasvolumenstrom (Qd) zu vergleichen,
    c) eine Abklemmwarnung auszulösen, wenn:
    Qr < n . Qd mit: n ≤ 0,80.
  2. Behälter nach Anspruch 1, dadurch gekennzeichnet, dass die Ansteuerungsmittel (5) dazu ausgestaltet sind, eine Abklemmwarnung auszulösen, wenn: Qr < n . Qd mit: n ≤ 0,70.
  3. Behälter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Ansteuerungsmittel (5) dazu ausgestaltet sind, eine Abklemmwarnung auszulösen, wenn: Qr < n . Qd mit: n ≤ 0,60.
  4. Behälter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Ansteuerungsmittel (5) dazu ausgestaltet sind, eine Abklemmwarnung auszulösen, wenn: Qr < n . Qd mit: n ≤ 0,50.
  5. Behälter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Ansteuerungsmittel (5) dazu ausgestaltet sind, den Ist-Gasvolumenstrom (Qr) zwischen den aufeinander folgenden Zeitpunkten (t1, t2) zu ermitteln, indem die folgenden Berechnung vorgenommen wird: Qr = (ΔP . V) / Δt
    worin:
    - ΔP der Druckänderung zwischen zwei aufeinander folgenden Druckmessungen (p1, p2) entspricht,
    - V dem Volumen des Gasbehälters entspricht und
    - Δt der zeitlichen Änderung zwischen den aufeinander folgenden Zeitpunkten (t1, t2) entspricht, zu denen die beiden aufeinander folgenden Druckmessungen (p1, p2) vorgenommen worden sind.
  6. Behälter nach Anspruch 1, dadurch gekennzeichnet, dass die digitale Anzeige (6) der elektronischen Vorrichtung (7) dazu ausgestaltet ist, ein Abklemmwarnsymbol (10) und/oder eine alphanumerische Abklemmanzeige (20) im Fall des Auslösens einer Abklemmwarnung anzuzeigen.
  7. Behälter nach Anspruch 1, dadurch gekennzeichnet, dass der Drucksensor (4) so angeordnet ist, dass er den Druck des Gases in einem inneren Gasdurchlass des Gasabgabeventils (3) misst, der in Fluidverbindung mit dem Innenvolumen (2) des Gasbehälters (1) steht.
  8. Behälter nach Anspruch 1, dadurch gekennzeichnet, dass die elektronische Vorrichtung (7) an dem Gasabgabeventil (3) befestigt ist und von einer Quelle elektrischer Energie, bevorzugt einer oder mehreren Batterien oder Knopfzellen, elektrisch versorgt wird.
  9. Verwendung eines Gasbehälters (1), insbesondere einer Gasflasche, nach einem der vorhergehenden Ansprüche, um ein Druckgas, insbesondere ein medizinisches Gas, das unter Sauerstoff oder einem Gasgemisch N2O/O2, NO/N2, He/O2, medizinischer Luft gewählt ist, zu speichern oder auszugeben.
EP21156395.2A 2020-03-18 2021-02-10 Druckgasbehälter, der mit einer elektronischen vorrichtung zur warnung bei abklemmung ausgestattet ist Active EP3882507B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2002674A FR3108382B1 (fr) 2020-03-18 2020-03-18 Récipient de gaz sous pression équipé d’un dispositif électronique à alerte de clampage

Publications (2)

Publication Number Publication Date
EP3882507A1 EP3882507A1 (de) 2021-09-22
EP3882507B1 true EP3882507B1 (de) 2024-12-04

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EP21156395.2A Active EP3882507B1 (de) 2020-03-18 2021-02-10 Druckgasbehälter, der mit einer elektronischen vorrichtung zur warnung bei abklemmung ausgestattet ist

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EP (1) EP3882507B1 (de)
ES (1) ES3014713T3 (de)
FR (1) FR3108382B1 (de)
PT (1) PT3882507T (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3132556B1 (fr) * 2022-02-04 2024-01-19 Air Liquide Vanne pour fluide sous pression, et réservoir ou ensemble de réservoirs de fluide sous pression

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2929142A1 (fr) * 2008-03-28 2009-10-02 H M Sarl Procede et installation de fabrication de paquets de toles
EP2918893B1 (de) * 2014-03-12 2019-04-17 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Schutzhaube mit schwenkbarem Einrastsystem für Gasflasche

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3018583B1 (fr) 2014-03-12 2017-01-27 Air Liquide Capotage de protection pour bouteille de gaz avec ecran d’affichage electronique en position haute
FR3018579B1 (fr) * 2014-03-12 2016-12-30 Air Liquide Ensemble de distribution de gaz avec organe de commande rotatif protege par un rebord en saillie portant une fenetre de lecture
FR3064717A1 (fr) * 2017-03-31 2018-10-05 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dispositif de distribution de gaz a systeme de couplage ameliore de l’organe de manœuvre
FR3070592B1 (fr) * 2017-09-01 2019-08-23 Air Liquide Sante (International) Systeme d'aide a l'administration d'oxygene a un patient traite par oxygenotherapie

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2929142A1 (fr) * 2008-03-28 2009-10-02 H M Sarl Procede et installation de fabrication de paquets de toles
EP2918893B1 (de) * 2014-03-12 2019-04-17 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Schutzhaube mit schwenkbarem Einrastsystem für Gasflasche

Also Published As

Publication number Publication date
FR3108382A1 (fr) 2021-09-24
EP3882507A1 (de) 2021-09-22
FR3108382B1 (fr) 2022-08-19
ES3014713T3 (en) 2025-04-24
PT3882507T (pt) 2025-01-23

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