EP3882507A1 - 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
EP3882507A1
EP3882507A1 EP21156395.2A EP21156395A EP3882507A1 EP 3882507 A1 EP3882507 A1 EP 3882507A1 EP 21156395 A EP21156395 A EP 21156395A EP 3882507 A1 EP3882507 A1 EP 3882507A1
Authority
EP
European Patent Office
Prior art keywords
gas
pressure
sub
flow rate
clamping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21156395.2A
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English (en)
French (fr)
Inventor
Sofia Andre Dias
Federica BELLINGERI
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.)
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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Filing date
Publication date
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of EP3882507A1 publication Critical patent/EP3882507A1/de
Pending legal-status Critical Current

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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

  • a pressurized gas container in particular a pressurized gas cylinder, equipped with a fluid dispensing valve comprising a digital display electronic device configured to sense a clamping of the gas distribution 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, mixtures of NO / N 2 , N 2 O / O 2 , He / O 2 , medical air or the like, are generally packaged in pressurized gas containers, in particular cylinders. or gas cylinders. These gas containers are fitted with a distribution valve, with or without an integrated pressure relief system, for supplying medical gas and a needle or digital manometer for displaying the residual gas pressure.
  • a protective cover also called a "cap" which serves to protect them against shocks, falls, dirt, etc.
  • 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 cylinder equipped with an electronic device with a digital display screen.
  • the gas can be medical oxygen which is delivered to the patient via a respiratory interface, for example a mask, nasal cannulas or the like.
  • the flexible gas pipe typically a flexible pipe
  • the flexible gas pipe is more or less clamped, that is to say crushed, twisted or bent, so that the actual gas flow sent to the patient is not not the desired one, in particularly that it is (very) insufficient compared to what is necessary to treat the patient.
  • Such clamping of the flexible gas line, ie flexible pipe, delivering the gas to patients bedridden in mechanical and / or electrical beds, are recurrent and cause a decrease in the flow of gas, generally oxygen, supplied to the patients. , which can cause their desaturation (ie drop in the O 2 content of the blood) and in the worst case, can lead to hypoxemic cardiac arrest and the death of some patients.
  • the clampings generate a problem of treatment safety 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 due to a lack of gas. oxygen, therefore desaturate or worse.
  • the problem is therefore to be able to detect automatically and as early as possible any clamping, in particular any significant clamping, of the flexible gas pipe, typically a flexible plastic pipe, connected to the flow outlet connection of a distribution valve. gas equipping a gas container and immediately alert the user in response to such detection of clamping.
  • the Fig. 1 is a block diagram of a pressurized gas container 1 according to the invention, namely here a gas cylinder with axis AA, while the Fig. 2 shows an embodiment of such a gas container 1.
  • the gas container 1 of the Fig. 1 and Fig. 2 comprises an internal volume 2 for storing pressurized gas, for example of more than 200 bar abs (full pressure), and is equipped with a fluid distribution valve 3, such as an RDI, crossed by at least one internal passage gas 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 valve 3 to an outlet connection 11 in flow to which a flexible gas pipe is fluidly connected 100, schematized in Fig. 3 .
  • a fluid distribution valve 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 withdraw the gas from the internal volume 2 or, conversely, to fill it when it is empty.
  • the gas distribution valve 3 is mounted, typically screwed, at the level of the orifice of the neck of the gas cylinder.
  • the gas distribution valve 3 comprises a gas distribution fitting or nozzle, called the flow outlet fitting 11, to which can be connected a flexible gas pipe 100, such as a flexible plastic pipe, serving in conveying the gas to a medical device or device using the gas supplied by the valve 3, for example a breathing mask delivering gas to a patient at a rate prescribed by a doctor or the like corresponding to a treatment to be followed.
  • a flexible gas pipe 100 such as a flexible plastic pipe
  • the gas distribution valve 3 comprises a pressure sensor 4 for measuring the pressure of the gas, within the internal gas passage and / or in the internal volume 2 of the container 1, and to provide pressure measurements (ie measurement signals ) to microprocessor control means 5, that is to say a device or a control unit comprising one or more microprocessors implementing one or more algorithms, for example an electronic card carrying one (or more) microprocessors setting implementing one or more calculation algorithms or the like, preferably a microcontroller.
  • microprocessor control means 5 that is to say a device or a control unit comprising one or more microprocessors implementing one or more algorithms, for example an electronic card carrying one (or more) microprocessors setting implementing one or more calculation algorithms or the like, preferably a microcontroller.
  • the microprocessor control means 5, configured to process the pressure measurements supplied by the pressure sensor 4. They are preferably arranged in the casing of an electronic device 7, for example a digital manometer, attached to the fluid dispensing valve 3, which comprises 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, serving to select a desired gas flow rate (Qd) to be delivered by the outlet connection 11 in flow rate, for example to meet a prescription from a doctor or the like.
  • the flow rate selection device 12 may be a rotary handwheel capable of moving in rotation between several angular positions, offset from one another, which each correspond to a given flow rate value, for example selectable gas flow rate values included between 0 L / min and 30 L / min, typically between 0 and 25 L / min.
  • the selectable flow values can be: 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 body of the valve 3 in order to adjust the flow rate to the desired gas flow rate value (Qd), for example the adjustment device flow can be a calibrated orifice disc arranged in the path of the gas in the body of the valve 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 by means of one or more position sensors. This then allows the control means 5 to then know the value of the desired gas flow rate (Qd) having been selected. Such an arrangement is also known per se.
  • the flow outlet connector 11 is arranged centrally and coaxially with the flow rate 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 instants (t 1 , t 2 ), for example spaced apart successive instants (t 1 , t 2 ) lasting 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 instants (t 1 , t 2 ).
  • the time elapsing between successive instants (t 1 , t 2 ) can be determined 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 values pressure.
  • the microprocessor control means 5 are configured to process the pressure measurement signals (p 1 , p 2 ) determined at successive instants (t 1 , t 2 ) and supplied by the pressure sensor 4, which measures the pressure gas stored in 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 ) taken at successive instants (t 1 , t 2 ), a real gas flow ( Qr) supplied by the outlet connection 11 in flow from the valve 3 to the flexible gas pipe 100, between the successive instants (t 1 , t 2 ).
  • the internal volume of the gas container (in water equivalent) is a known value which can be memorized by storage means 9, such as a computer memory of the EEPROM type, of the electronic device 7.
  • storage means 9 such as a computer memory of the EEPROM type, of the electronic device 7.
  • gas cylinders equipped with this type of electronic device 7 used to dispense 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 bottle 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 the successive instants (t 1 , t 2 ), the successive pressure measurements (p 1 , p 2 ) ... or d '' other parameters, such as the gas temperature, the ambient temperature, the position of the selector, the configuration of the cylinder, the filling pressure, the presses on the acknowledgment button, the 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 valve. distribution of fluid 3 and serving to protect it against impact or other possible damage, 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 the like, carried by the rigid case, 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 compartment arranged in the wall of the cowling body and closed by a removable hatch or similar.
  • an electrical energy source not visible
  • arranged in the cowling 14 for example one or more batteries or cells arranged in a battery compartment arranged in the wall of the cowling body and closed by a removable hatch or similar.
  • the control means 5 are configured to trigger a visual and / or audible alert in order to warn the user of this clamping.
  • the Fig. 3 illustrates a clamping of a flexible gas line 100 connected to the gas valve of a gas container according to the invention (not shown).
  • the object 102 which comes to press on the flexible gas pipe 100 locally deforms 101 its flexible wall, that is to say crushes it. This then causes clamping, that is to say a restriction of passage causing a drop in flow.
  • Other forms of clamping exist, such as for example a bent pipe, that is to say forming a bend 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.
  • the triggering of an alert can 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) diodes. warning 19 present on the box of the electronic device 7.
  • the present invention it is possible to prevent an insufficient gas flow from being delivered to a patient, for example a flow not in accordance with a medical prescription, that is to say to immediately detect any clamping of the patient.
  • the flexible gas pipe fluidly connected to the flow outlet connection 11 of the valve 3.
  • 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 Qr (in L / min or in another unit), as illustrated. in Fig. 4 , or a gas autonomy (in hours and minutes), for example represented by a bar graph 22.
  • the digital display 6 comprises a screen with a height for example between 29 and 37 cm approximately and a width for example between 39 and 43 cm approximately.
  • the digital display 6 can be arranged in the front panel 18, that is to say the front panel, of the housing of the electronic device 7 which is fixed on the fluid dispensing valve 3 and housed in an opening of the body of the device. protective cover 14 protecting the valve 3.
  • the electronic device 7 may further include an alert acknowledgment button 21, in particular arranged in its front panel 18, serving to acknowledge or stop an alert after it has been triggered.
  • the protective cover 14 can be a simple cover, such as a simple shell or rigid protective envelope without other functionality, or be more advanced, that is to say include other functions, such as for example a carrying handle 15 fixed to the body of the cowling 14 by one or more support posts 16, and / or a mobile (eg pivoting or translating) or fixed attachment system 17 making it possible to attach, ie to suspend, the container / valve / cowling assembly to a support, typically to a bed or stretcher bar, or any other rod or the like.
  • a carrying handle 15 fixed to the body of the cowling 14 by one or more support posts 16, and / or a mobile (eg pivoting or translating) or fixed attachment system 17 making it possible to attach, ie to suspend, the container / valve / cowling assembly to a support, typically to a bed or stretcher bar, or any other rod or the like.
  • the carrying handle 15 is advantageously sized to be able to be gripped manually by a user in order to allow easy handling and / or transport of the gas container / valve / cowling assembly.
  • All the components requiring electrical energy to operate are supplied electrically by an electrical energy source arranged for example in the cowling 14, for example an electric battery or battery.
  • a fluid container 1, in particular a gas cylinder, equipped with a valve, such as an RDI, protected by a cover according to the invention is suitable for the storage and supply of gas under pressure, in particular a gas or medical gas mixture, such as oxygen, an NO / N 2 , O 2 / N 2 O or He / O 2 mixture, air or the like.
  • a gas or medical gas mixture such as oxygen, an NO / N 2 , O 2 / N 2 O or He / O 2 mixture, air or the like.

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)
EP21156395.2A 2020-03-18 2021-02-10 Druckgasbehälter, der mit einer elektronischen vorrichtung zur warnung bei abklemmung ausgestattet ist Pending EP3882507A1 (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 (1)

Publication Number Publication Date
EP3882507A1 true EP3882507A1 (de) 2021-09-22

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Application Number Title Priority Date Filing Date
EP21156395.2A Pending EP3882507A1 (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) EP3882507A1 (de)
FR (1) FR3108382B1 (de)

Families Citing this family (1)

* 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 (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2918892A1 (de) 2014-03-12 2015-09-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Schutzhaube für Gasflasche mit elektronischem Anzeigebildschirm in oberer Position
EP2918893A1 (de) 2014-03-12 2015-09-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Schutzhaube mit schwenkbarem Einrastsystem für Gasflasche
FR3018579A1 (fr) * 2014-03-12 2015-09-18 Air Liquide Ensemble de distribution de gaz avec organe de commande rotatif protege par un rebord en saillie portant une fenetre de lecture
EP3382259A1 (de) * 2017-03-31 2018-10-03 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Gasabgabevorrichtung mit verbessertem kupplungssystem des betätigungsorgans
FR3070592A1 (fr) * 2017-09-01 2019-03-08 Air Liquide Sante (International) Systeme d'aide a l'administration d'oxygene a un patient traite par oxygenotherapie

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2918892A1 (de) 2014-03-12 2015-09-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Schutzhaube für Gasflasche mit elektronischem Anzeigebildschirm in oberer Position
EP2918893A1 (de) 2014-03-12 2015-09-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Schutzhaube mit schwenkbarem Einrastsystem für Gasflasche
FR3018579A1 (fr) * 2014-03-12 2015-09-18 Air Liquide Ensemble de distribution de gaz avec organe de commande rotatif protege par un rebord en saillie portant une fenetre de lecture
EP3382259A1 (de) * 2017-03-31 2018-10-03 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Gasabgabevorrichtung mit verbessertem kupplungssystem des betätigungsorgans
FR3070592A1 (fr) * 2017-09-01 2019-03-08 Air Liquide Sante (International) Systeme d'aide a l'administration d'oxygene a un patient traite par oxygenotherapie

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FR3108382B1 (fr) 2022-08-19
FR3108382A1 (fr) 2021-09-24

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