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
  • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
  • G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
  • G01F22/02—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for involving measurement of pressure
• • G—PHYSICS
  • G05—CONTROLLING; REGULATING
  • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
  • G05B19/00—Program-control systems
  • G05B19/02—Program-control systems electric
  • G05B19/04—Program control other than numerical control, i.e. in sequence controllers or logic controllers
  • G05B19/042—Program control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
• • G—PHYSICS
  • G05—CONTROLLING; REGULATING
  • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
  • G05B19/00—Program-control systems
  • G05B19/02—Program-control systems electric
  • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form
  • G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form characterised by monitoring or safety
• • 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
  • F17C2201/058—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
  • 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
  • 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
  • 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
  • F17C2250/034—Control means using wireless transmissions
• • 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
  • F17C2250/0408—Level of content in 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
  • F17C2250/0404—Parameters indicated or measured
  • F17C2250/0426—Volume
• • 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
  • F17C2250/0439—Temperature
• • 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
  • F17C2250/0404—Parameters indicated or measured
  • F17C2250/0473—Time or time periods
• • 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
  • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
  • F17C2250/06—Controlling or regulating of parameters as output values
  • F17C2250/0689—Methods for controlling or regulating
  • F17C2250/0694—Methods for controlling or regulating with calculations
• • 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
  • F17C2250/07—Actions triggered by measured parameters
  • F17C2250/072—Action when predefined value is reached
  • F17C2250/075—Action when predefined value is reached when full
• • 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
  • F17C2250/07—Actions triggered by measured parameters
  • F17C2250/072—Action when predefined value is reached
  • F17C2250/077—Action when predefined value is reached when empty
• • 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
  • F17C2260/03—Dealing with losses
  • F17C2260/035—Dealing with losses of fluid
  • F17C2260/038—Detecting leaked fluid
• • 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 present invention relates to a valve for a bottle of fluid under pressure and a corresponding bottle.
• the invention relates more particularly to a valve for a bottle of pressurized fluid
• a valve for a bottle of pressurized fluid comprising a body provided with an end intended to be mounted in the orifice of a bottle of pressurized fluid, the valve body housing a first withdrawal circuit comprising an upstream first end for communicating the storage volume of a pressurized fluid bottle and a second downstream end intended to be connected to a user body of the withdrawn gas, the first withdrawal circuit comprising a flow control member and or the pressure of the fluid drawn between the upstream and downstream ends, the valve comprising a manual control member of the regulating member, the control member being mounted movably relative to the valve body and cooperating with the regulating member to control the flow rate and / or the fluid pressure allowed to flow from the upstream end to the downstream end according to the positioning the control member relative to the body, the valve comprising an electronic data indicating device (s) relative to the fluid content in a bottle connected to the tap, the electronic indication device comprising an organ for storing and processing data and at least
• the invention relates to a valve provided with an electronic device for indicating physical data relating to the contents of a bottle of pressurized fluid, in particular gas under pressure.
• the invention relates in particular to a device called electronic and digital pressure gauge.
• a device called electronic and digital pressure gauge For example, reference may be made to document FR2868160A1 which describes an example of such a device.
• Such a device comprises a pressure sensor and an electronic logic that calculates and displays fluid quantity and / or autonomy data.
• the device To calculate and display such reliable autonomy information the device must perform several successive pressure measurements before evaluating the flow rate selected by the tap user. This generates a calculation time that does not allow to display immediately a range or withdrawal rate selected. A time of thirty to sixty seconds may for example be necessary. In addition, this device also has an identical reaction time in case of change of the withdrawal parameters (change of the selected withdrawal rate ).
• the pressure signal measured by the manometer undergoes an oscillation in phase with the ventilation phases. Due to the wide variety of ventilation modes, it is difficult to calculate or display relevant information.
• EP21 10949A1, US6098646 and WO2012164240A1 describe devices for measuring the position of a selector via several sensors.
• US6518749 discloses a magnetic position detector. In addition to its cost, this device has the disadvantage of requiring the presence of magnet (s) potentially annoying (s) for other electrical components.
• An object of the present invention is to overcome all or part of the disadvantages of the prior art noted above.
• the valve according to the invention is essentially characterized in that the position sensor of the control member comprises a mechanism meshing with the control member and a potentiometer, the mechanism comprising a moving part forming a slider of the potentiometer, the sensor of position providing a determined voltage and / or resistance value as a function of the position of the control member.
• embodiments of the invention may include one or more of the following features:
• the position sensor further comprises a capacitive system measuring an electrical capacitance between a magnetic fixed reference and a mobile part connected to the moving part of the mechanism,
• the manual control member of the regulating member is movable in a so-called "closing" position corresponding to a closure of the first withdrawal circuit, that is to say that the flow of fluid admitted to pass from the upstream end to the downstream end is zero,
• the potentiometer of the position sensor of the control member is calibrated by measuring the value of voltage or resistance that it provides corresponding to the so-called "closing" position; the manual control member ensuring a closure of the first circuit of withdrawal, then measuring the value of voltage or resistance provided by the potentiometer corresponding to a position of the extreme control member relative to the closed position, the intermediate values of voltage or resistance provided by the potentiometer being respectively assigned at the intermediate positions of the control member,
• the potentiometer of the position sensor of the control member is calibrated by measuring the voltage or resistance value that it provides corresponding to a position of the control member in which no pressure variation is measured by the sensor during a determined period of time, for example one to three minutes, this position is defined as being the closed position,
• the organ storage and data acquisition system is configured to control the display on the display of a fixed information relating to the pressure and / or the quantity of fluid in the bottle and / or a history of this information and / or information relating to a history of the use of the tap such as flow (s) withdrawn (s), history of the pressure measured, duration (s) of use (s),
• the valve comprises a pressure sensor intended to measure the pressure within the storage volume of a bottle of fluid connected to the tap, the pressure sensor being connected to the storage acquisition and data processing element for transmitting to the latter a signal representative of the measured fluid pressure, the storage acquisition and data processing member being configured, in response to the reception of this pressure signal, to calculate and display on the display a information of autonomy or fluid content remaining,
• At least one of the position sensor and the pressure sensor is of the electric type and powered by a battery and / or an inductive system, said at least one sensor being fed discontinuously, the acquisition member of storage and data processing being configured to provide this discontinuous power supply at the time of a measurement,
• the data storage and data acquisition device is configured to calculate an autonomy or fluid content information over a determined time interval of between one second and ten minutes and preferably between thirty seconds and six minutes from the pressure signal measured by the pressure sensor, the storage and data acquisition member being configured also to compare this calculated range information on the basis of the measured pressure signal with respect to the pressure sensor.
• theoretical autonomy information calculated from the quantity or pressure variation imposed by the regulator,
• the data storage and processing acquisition unit is configured to automatically recalculate and display an update of the autonomy or fluid content information upon receipt of a signal from the position sensor indicating a change of flow rate and / or the fluid pressure imposed by the regulator via the control member
• the data storage and processing acquisition unit is configured to automatically recalculate and display an update of the autonomy or fluid content information upon receipt of a signal from the position sensor indicating a change of flow rate and / or the fluid pressure imposed by the regulator via the control member
• the position sensor of the control member comprises a converter of a mechanical displacement of the control member into an electrical signal that can be exploited by the data storage and data acquisition member,
• the position sensor of the control member comprises a mechanism meshing with the control member and an optical and / or digital encoder, the encoder providing a digital signal determined as a function of the position of the control member,
• the storage acquisition member and data processing is configured to calculate a remaining fluid autonomy information from the measurement of the initial pressure signal and the variation of this pressure signal given by the pressure sensor, the acquisition member of storage and data processing being configured to control the display on the display of this calculated autonomy information and / or information relating to the pressure or the initial quantity of fluid in the bottle.
• the invention also relates to a bottle of pressurized fluid comprising a valve according to any one of the above characteristics or below.
• the storage acquisition and data processing unit is configured to control the display on the display of a fixed information relating to the contents of the bottle. fluid in the bottle until the position sensor has transmitted a signal representative of a flow and / or pressure of fluid withdrawn from the reservoir during a determined period of time and / or corresponding to a determined quantity of fluid.
• the invention may also relate to any alternative device or method comprising any combination of the above or below features.
• FIG. 1 represents a schematic and partial side view illustrating a tap mounted on a cylinder of pressurized gas according to an exemplary embodiment of the invention
• FIG. 2 diagrammatically and partially shows the structure and operation of a part of the valve of FIG. 1,
• FIGS. 3 to 5 diagrammatically and partially illustrate the structure and operation of respectively three examples of position sensors of a valve according to the invention
• FIG. 6 diagrammatically represents two curves illustrating examples of signals generated by one or more position sensors of FIG. 5,
• FIGS. 7 and 8 schematically and partially illustrate the structure and operation of respectively a fourth example and a fifth example of a valve position sensor according to the invention
• FIG. 9 schematically represents an example of a pressure curve measured as a function of time.
• Figure 1 shows schematically a cylinder 2 of pressurized gas provided with a valve 1 capable of implementing the invention.
• the valve 1 comprising a body provided with an end intended to be mounted in the orifice of a bottle 2 of fluid under pressure (for example by screwing).
• the valve body 1 houses a first withdrawal circuit 3 comprising an upstream first end 13 communicating with the storage volume of the bottle 2.
• the withdrawal circuit 3 comprises a second downstream end 23 intended to be connected to a user organ withdrawn gas (for example a patient in the case of oxygen or another medical gas).
• the first withdrawal circuit 3 comprises a member 4 for regulating the flow rate and / or the pressure of the fluid withdrawn between the upstream and downstream ends 13 23.
• This regulating member 4 is for example a flow regulator with calibrated orifices 16 making it possible to select a gas flow rate withdrawn (see the diagram of FIG. 3).
• any other regulating member may be envisaged, for example a proportional opening valve.
• the valve 1 comprises a member 5 for manual control of the member 4.
• the control member 5 is mounted movably relative to the body of the valve 1 and cooperates with the regulating member 4 to control the flow rate and / or the pressure of the fluid allowed to circulate according to the position of the control member 5 relative to the valve body.
• the control member 5 comprises for example a rotary wheel.
• any other suitable system can be envisaged (pivoting lever, ).
• the control member selects a calibrated orifice and / or controls a rate restriction valve based on its position among a plurality of stable discrete positions or a plurality of positions of a continuous displacement.
• the stable positions can be referenced mechanically by a hard point (for example via a latching system).
• the valve 1 comprises an electronic device 6 indicating data (s) relative (s) fluid content in a bottle 2 connected to the valve 1.
• the device may be of the type comprising a storage acquisition and data processing member 7 and at least one data display 8 connected to the storage acquisition and data processing device 7.
• the storage acquisition and data processing unit 7 comprises for example a computer and / or a microprocessor or any other equivalent system.
• this device may comprise one or more data receiving members (by wired and / or wireless connection) as well as one or more data transmission members (by wired and / or wireless connection).
• the valve 1 comprises a sensor 9 of the position of the body 5 of manual control of the control member 4.
• the position sensor 9 is connected to the storage acquisition and data processing member 7 to transmit to the latter a signal representative of the flow rate and / or the fluid pressure imposed by the regulating member 4.
• the position sensor 9 of the control member 5 comprises a converter of the mechanical displacement of the control member in an electrical signal that can be used by the storage acquisition and data processing unit 7.
• the detector is for example integral with a fixed part of the valve, or respectively of the control member, the detector providing an electrical or digital signal determined according to the position of the control member. This signal can be provided wired and / or wireless.
• the position sensor 9 of the control member 5 comprises a mechanism 19 meshing with the control member 5 (for example a gearing and / or notching system) and a potentiometer 39. comprises a moving part 29 (for example a wheel or a rod or a rack) forming a slider of the potentiometer 39.
• the position sensor 9 provides a value of tension and / or resistance determined according to the position of the the control member 5.
• the position sensor 9 of the control member 5 also comprises a mechanism meshing with the control member 5 comprising an optical and / or digital coder 49, for example a wire coder ( conductive wire and a ground wire).
• the encoder 49 provides a digital signal determined according to the position of the control member.
• one or more wires are energized or short-circuited forming a plurality of distinct signals to characterize different positions (for example 2 n-1 for a n-wire system).
• FIG. 5 illustrates another solution in which the position sensor 9 of the control member 5 comprises a magnetic system comprising at least one magnet 59 integral with the control member 5 and at least one magnetic field detector 69, 79 of the at least one magnet 59.
• a detector 69 detects for example a magnetic field E as a function of the displacement D which oscillates and makes it possible to characterize a plurality of positions.
• the device comprises a second detector 79 (or more), several separate signals can be operated simultaneously to improve the detection of distinct positions.
• the position sensor 9 of the control member 5 may comprise a capacitive system measuring a capacitance between a magnetic reference 89 and a mobile part 99 connected to the control member 5
• the potentiometer system and more generally each detection system can be easily calibrated during manufacture.
• the potentiometer 39 or sensor 9 of the position sensor 9 of the control member 5 can be calibrated by measuring the value of voltage or resistance (see magnetic field and capacitance) that it provides corresponding to the position called "Closing" (zero flow). Then, it is possible to measure the voltage or resistance value provided by the potentiometer 39 corresponding to a position of the extreme control member with respect to the closed position.
• the intermediate values of voltage or resistance provided by the potentiometer 39 are respectively assigned to the intermediate positions of the control member 5 between the closed position and the extreme position. (Idem for the detection of another physical quantity, magnetic field, capacity ... where the intermediate positions of the signal can be assigned respectively to the intermediate positions of the control member).
• the potentiometer 39 of the position sensor 9 of the control member 5 can be calibrated by measuring the voltage or resistance value that it provides corresponding to a position of the control member 5 in which no variation of The pressure is measured by the pressure sensor for a predetermined time, for example one to three minutes.
• This position (this signal value) is defined as the closing position of the circuit (zero flow).
• This mode of definition of the closed position can be applied to the other examples (magnetic field, capacity ).
• a robot and / or operator may move the controller 5 to match different positions of the controller 5 with the corresponding electrical values generated.
• All or part of this calibration system, original in itself, can also be applied to the other embodiments of the position sensor (capacitive sensor, magnetic sensor Certainly, the invention can relate to a valve whose different values of the signal supplied by the position sensor 9 of the control member (capacitive, magnetic or other) are assigned respectively to different positions of the valve. 5 control member.
• the manual control member 5 and / or the regulating member 4 can be movable according to a plurality of discrete positions (mechanically stable or not) respectively corresponding to flow values and / or the fluid pressure allowed to pass from the end 13 upstream to the downstream end.
• storage and data processing unit 7 is configured to select and display on the display 8 one or both of these adjacent values or an intermediate value between these two adjacent values or a value range defined by these two adjacent values.
• the device does not display any information, in particular no encrypted information when the manual control member is disposed in an intermediate position between two adjacent values (to react the user and correct his incorrect selection).
• the storage acquisition and data processing member 7 displays and / or signal (wireless or wired or wireless distance transmission) the value that is the most critical or the most unfavorable for the user.
• the data acquisition and data acquisition member 7 is configured to calculate and display on the display 8 information of autonomy or fluid content remaining in the bottle based on the highest value of the two adjacent values.
• the storage acquisition and data processing unit 7 can be configured to calculate a range based on the flow rate value taken from n + 1 liter per minute (less autonomy than it had been calculated with the value of n liter per minute).
• the storage and data processing acquisition member 7 can be configured to display on the display 8 d information relating to the withdrawn flow rate imposed by the regulating member 4 corresponding to the lowest value of the two adjacent values.
• the storage acquisition and data processing unit 7 can be configured to display on the display 8 information based on the flow rate value taken from n liter per minute (the lowest rate that may for example be below the medical prescription). This, in addition to or instead of an alarm, will prompt the user to correct the flow selection.
• the device may be configured in this case to deliver a flow of fluid corresponding to one of the two adjacent values, in particular the displayed value.
• the 4 is configured to allow the withdrawal of a non-zero fluid flow rate between said two respective adjacent flow rate and / or pressure, including the displayed value.
• the member 4 Regulation is consistent to authorize the withdrawing a fluid flow rate equal to one of said two adjacent flow rate and / or pressure values.
• the storage acquisition and data processing member 7 can be configured to display the actual flow rate value selected.
• the valve preferably also comprises a pressure sensor 10 for measuring the pressure within the storage volume of the bottle 2.
• the pressure sensor 10 is connected to the acquisition member 7 storage and data processing to transmit to the latter (wired and / or wireless) a signal representative of the measured fluid pressure, in particular in real time or periodically.
• the storage acquisition and data processing member 7 can be configured, in response to the reception of this pressure signal delivered by the sensor 10, to calculate and display on the display 8 a piece of autonomy or remaining fluid content.
• the body 5 of manual control of the regulating member 4 is movable in a so-called "closing" position corresponding to a closure of the first withdrawal circuit 3. That is to say that the fluid flow admitted to pass from the upstream end 13 to the downstream end 23 is zero.
• the storage and data acquisition member 7 is preferably configured to control the display on the display 8 of a fixed information relating to the pressure and / or the quantity of fluid in the bottle 2.
• the device detects that the bottle 12 is not withdrawn and displays for example information on its contents.
• the valve 1 preferably comprises a second withdrawal circuit 1 1, for example distinct from the first withdrawal circuit 3 and which avoids the flow control member 4 and / or the pressure of the first circuit racking 3.
• This second circuit 1 1 withdrawal may if necessary have a common portion with the first circuit 3 of withdrawal.
• This second circuit 1 1 withdrawal is for example provided to provide a gas at a controlled pressure (via a pressure regulator 14).
• the second circuit 1 1 withdrawal provides an adjustable or fixed pressure f of the order of 3 to 10 bar to a user device.
• the second withdrawal circuit 1 1 has an outlet connection 101 (for example via a toothed inlet) that can be connected to a medical ventilator to supply oxygen to the ventilator.
• This second circuit 1 1 withdrawal can supply gas cylinder 2 independently of the first circuit 3 withdrawal.
• a threshold of determined variation for example 25mbar per minute
• the storage acquisition and data processing member 7 can detect a withdrawal of fluid via the second circuit 1 1 of withdrawal or, if this second circuit 1 1 of withdrawal is not used, a possible leakage of fluid.
• the storage acquisition and data processing member 7 can, if necessary, control the display on the display 8 or the sending (wirelessly, wired or audibly) of information relating to a withdrawal via the second circuit 1 1 draw and or relating to a leak (warning signal).
• the storage acquisition and data processing member 7 is configured to detect at least one characteristic of the shape of the variation of fluid pressure in the bottle due to the withdrawal via the second withdrawal circuit 1 1.
• the at least one characteristic comprises, for example: a periodic character of the pressure or quantity variation, the frequency of the pressure or quantity variation, the level of variation of pressure or of quantity, etc.
• this makes it possible to detect, after two to three pressure oscillations instantaneously, for example a periodic withdrawal corresponding to a gas supply of a respiratory fan. Indeed, even if the gas withdrawn does not pass through the flow regulator 4, the flow rate is regulated directly by a ventilator and depends on the breathing of the patient. This flow thus delivered is not constant but oscillates in time (according to the breathing of the patient).
• the storage acquisition and data processing unit 7 may be configured to detect (recognize) a characteristic pressure drop of a ventilation according to the following principle:
• the storage acquisition and data processing member 7 can be configured to measure the pressure drop on the optimums to deduce the equivalent decay slope. (see reference 15 in FIG. Alternatively or cumulatively, the storage acquisition and data processing unit 7 can be configured to average the pressure drop over a relatively long time (several minutes, for example ten minutes) so as to erase the inaccuracies of the data. picture.
• this pressure signal does not correspond to a ventilation signal (for example a continuous decreasing variation)
• the storage acquisition and data processing member 7 can determine that it is a leakage or improper use of the gas and may report it in the same way.
• Storage and data acquisition acquisition may be configured to calculate fluid remaining information from the measurement of the initial pressure signal and the variation of this pressure signal given by the pressure sensor.
• the storage acquisition and data processing member 7 can in particular be configured to control the display on the display 8 of this calculated autonomy information and / or information relating to the pressure or the initial quantity of fluid. in the bottle 2.
• the pressure sensor 10 may be located for example at the upstream end of the first withdrawal circuit 3 and / or at the second 1 1 withdrawal circuit.
• the storage acquisition and data processing member 7 may be configured, in response to the reception of this flow rate and / or imposed pressure signal, to control the display on the display 8 of FIG. relative information of the flow rate and / or the fluid pressure imposed by the regulating member 4.
• the storage acquisition and data processing member 7 can thus be configured to receive both the pressure signal P measured from the pressure sensor 10 and the flow and / or pressure signal D supplied by the sensor 9. position.
• the storage acquisition and data processing member 7 can thus be programmed to calculate a fluid autonomy information remaining from these two pieces of information, the remaining fluid autonomy being determined for example by calculating, from of the initial pressure measured, the theoretical time reduction of pressure or the amount of gas generated by the flow and / or the pressure D of withdrawal imposed by the regulating member 4.
• conversions between pressure and quantity can be calculated via the perfect gas equation or any other equivalent formula, the volume of the bottle 2 being known and indicated in the organ 7 acquisition of storage and data processing and the temperature can be measured by an ambient or calculated or informed or approximated external sensor
• the dynamic pressure measurement can make it possible to readjust, if necessary more precisely, the display of the actual flow withdrawn and / or the displayed autonomy.
• the storage acquisition and data processing member 7 can be configured to automatically recalculate and display an update of the autonomy or fluid content information upon receipt of a sensor signal. 9 indicating a flow rate change and / or the fluid pressure imposed by the control member 4 via the control member 5.
• the storage acquisition and data processing member 7 may be configured to include a guaranteed seal function indicating that the bottle 2 has not been used following a filling.
• the storage acquisition and data processing unit 7 can control the display on the display 8 of a fixed information relating to the fluid content in the bottle 2 (and / or information of the "full bottle” type) as long as the position sensor 9 has not transmitted a signal representative of a flow rate and / or the fluid pressure withdrawn from the tank 2 during a determined period of time and / or corresponding to a quantity determined fluid (for example 20 liters of gas withdrawn). This detection can be ensured or supplemented by the information given by the pressure sensor.
• the invention is relatively simple and inexpensive it is easy to see that it allows faster display of flow rate and autonomy information.
• the invention is advantageously applied to pressurized gas cylinders, in particular bottles containing oxygen under pressure.

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Automation & Control Theory (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Human Computer Interaction (AREA)
• Manufacturing & Machinery (AREA)
• Fluid Mechanics (AREA)
• Measuring Fluid Pressure (AREA)
• Measuring Volume Flow (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=50549105

Family Applications (1)

Country Status (4)

Families Citing this family (9)

Family Cites Families (12)

• 2014
  • 2014-01-22 FR FR1450524A patent/FR3016677B1/fr not_active Expired - Fee Related
  • 2014-11-26 WO PCT/FR2014/053044 patent/WO2015110717A1/fr not_active Ceased
  • 2014-11-26 EP EP14814960.2A patent/EP3097340A1/de not_active Withdrawn
  • 2014-11-26 US US15/112,757 patent/US20160348844A1/en not_active Abandoned

Also Published As

Similar Documents

Legal Events