EP4377664A1 - Dispositif de prélèvement d'échantillon de gaz - Google Patents
Dispositif de prélèvement d'échantillon de gazInfo
- Publication number
- EP4377664A1 EP4377664A1 EP21751812.5A EP21751812A EP4377664A1 EP 4377664 A1 EP4377664 A1 EP 4377664A1 EP 21751812 A EP21751812 A EP 21751812A EP 4377664 A1 EP4377664 A1 EP 4377664A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inlet
- outlet
- circuit
- pipe
- fluid
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2226—Sampling from a closed space, e.g. food package, head space
-
- 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
-
- 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
- F17C13/04—Arrangement or mounting of valves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
-
- 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
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
-
- 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
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/0447—Composition; Humidity
- F17C2250/046—Humidity
-
- 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
- F17C2265/06—Fluid distribution
- F17C2265/066—Fluid distribution for feeding engines for propulsion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2226—Sampling from a closed space, e.g. food package, head space
- G01N2001/2229—Headspace sampling, i.e. vapour over liquid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2226—Sampling from a closed space, e.g. food package, head space
- G01N2001/2238—Sampling from a closed space, e.g. food package, head space the gas being compressed or pressurized
Definitions
- the invention relates to a device for taking a gas sample.
- the invention relates more particularly to a device for taking a gas sample, in particular for a hydrogen tank filling station, comprising a base supporting a fluid circuit comprising a first upstream end provided with an inlet connection intended to be removably connected to an outlet connector of a source of gas to be sampled, the circuit comprising a sample tank and a first pipe connecting the inlet connector to an inlet of the sample tank, the first pipe comprising a set several gas flow control valves arranged in series, the circuit comprising an evacuation line provided with a control valve and comprising a first upstream end connected to the first pipe and a second downstream end opening towards a zone of discharge such as the atmosphere, the circuit comprising a second conduit having an upstream end connected to an outlet of the withdrawal tank and a downstream end connected to the evacuation line via a control valve, the circuit comprising an analysis line comprising an upstream end connected to the first pipe and a downstream end provided with an analysis outlet intended to be connected to an analysis device, the analysis line comprising at least one control valve. Since the publication
- a plate used by the plaintiff uses a reservoir (or bottle) provided for sampling by compression/expansion or by dilution or sweeping.
- This tank has a tube plunger: gas enters at an inlet at the valve is transferred to the bottom of the tank through the dip tube and exits at an outlet of the valve.
- Known sampling devices have shortcomings, for example: a relatively large size, risks of leakage, a poorly adaptable structure.
- An object of the present invention is to overcome all or part of the drawbacks of the prior art noted above.
- the fluid circuit further comprises at least one manometer, said manometer also being arranged in a respective housing each comprising a fluid inlet and a fluid outlet to said manometer, the inlet of the manometer housing being connected directly to the outlet of the housing of an adjacent control valve and the outlet of the manometer housing being connected directly to the inlet of an adjacent housing of another control valve, all the control valves of the circuit as well as the at least one manometer are arranged in respective boxes each comprising a fluid inlet and a fluid outlet connected to said control valve, the corresponding inlets and outlets of said boxes being connected directly in series, the housings are modular and parallelepiped, in particular cubic, and comprise orifices on at least two distinct faces and preferably on four distinct faces, at least one housing contains a gas flow control valve or a manometer and comprises three orifices located on three separate faces, said orifices being connected directly respectively to inlets or outlets of three adjacent boxes, the first pipe comprises, arranged in series between
- FIG. 1 represents a top view and in transparency illustrating schematically the structure and operation of the sampling device according to an embodiment of the invention
- the circuit further comprises an analysis line comprising an upstream end connected to the first pipe 3 (downstream of the first flow regulator 7) and a downstream end provided with an analysis output 12 intended to be connected to a device analysis.
- This analysis line may comprise, arranged in series: a second pressure regulator 15 and a fifth valve 16 for isolation.
- the first isolation valve 6 and the second isolation valve 8 make it possible to isolate the circuit from the inlet 10 of the sampling reservoir 5 (and can be used for filling by compression/expansion or by filling by dilution or scanning).
- the third isolation valve 13 makes it possible to isolate the outlet 11 of the reservoir 5 for sampling. This valve 13 is preferably only used to carry out a filling by dilution or sweeping.
- the second pressure regulator 15 of the analysis line makes it possible to adjust the pressure to supply one or more analyzers connected to the output 12 of analysis.
- the fifth isolation valve 16 makes it possible to isolate the circuit from the analyzers downstream. At least some and preferably all of the gas flow control valves and accessories are disposed in respective housings 20 each comprising at least one fluid inlet and one fluid outlet connected. For elements (valves, accessories) adjacent in series, the output of a housing 20 is directly connected to the input of the adjacent housing 20.
- the boxes which include the organs may, for example, be of the type described in the documents
- each casing 20 may include an internal housing which receives the fluidic device (valve, pressure gauge, pressure and/or flow rate regulator or other) and a system of channels which connects the internal fluidic device to orifices on housing faces 20 to receive or distribute the fluid.
- the casings 20 are assembled in a leaktight manner face to face by fixing members and without requiring intermediate ducts.
- the circuit 4, 5 of the device 1 preferably comprises a vent valve 18 connected to the first pipe 3 (for example between the downstream of the first pressure regulator 7 and the fourth isolation valve 14) and to line 23 evacuation, to evacuate the gas in case of abnormal overpressure.
- the vent valve 18 may also be located in a respective housing 20 comprising a fluid inlet and a fluid outlet and connected directly to the inlet/outlet of at least one adjacent housing 20.
- a restriction (not shown) may be provided between the control valve 14 and the vent line 23.
- the vent valve 18 (valve) can be calibrated at 200 bar, for example, to avoid excessively high pressures (filling pressure greater than 600 bar, for example) in the circuit and in the tank 5 for sampling.
- the end of the evacuation line 23 is preferably connected to a purge or to an evacuation chimney, for example.
- the first pipe 3 may comprise a first flexible portion connecting an outlet of a housing 20 to the inlet 10 of the reservoir 5 for sampling.
- this first flexible portion is attached to the support 2 via a holding member 19 such as an anti-whipping cable.
- the second pipe 4 may comprise a flexible portion connecting the outlet 11 of the sampling reservoir 5 to an inlet of a housing 20 and this second flexible portion may also be attached to the support 2 via a holding member 19 such as an anti-whip cable. This improves the security of device 1.
- the anti-whip holding cables 19 have been shown schematically but could be fixed to anchor points on the edge of the base 2.
- the ends of the hoses can be connected to plugs for the maintain and protect quick couplings from bad weather.
- the base 2 can comprise a rigid top mounted on removable feet. Handles can be provided to allow transport of the base 2.
- Analysis output 12 allows on-site analyzes to be carried out (by connecting an analysis device to it).
- This device 1 makes it possible to take samples of hydrogen without having to fill a vehicle in parallel.
- the filling of the sampling reservoir 5 can be carried out by compression-expansion or by dilution or sweeping.
- two leak tests at two different pressures can be performed (40 bar and 180 bar for example).
- An empty sampling tank 5 is connected to the circuit.
- the gas outlet hose is not used and can remain connected to a protective cap.
- Leakage tests of the connections between the inlet connection 9 and the first valve 6 of closed isolation can be carried out.
- This first isolation valve 6 can then be opened (gradually) and leak tests can be carried out, for example, up to the first pressure regulator 7 . Then the latter can be opened and adjusted to this same pressure of 40 bar (measured by the pressure gauge 17 downstream).
- the second isolation valve 8 can be opened (withdrawal tank 5 remaining closed, the third isolation valve 13 and fourth isolation valve 14 and fifth isolation valve 16 also closed).
- the pressure delivered by the first pressure regulator 7 can be increased, for example, to 180 bar (below the opening value of the vent valve 18). Other leak tests at this second pressure can be performed.
- the dew point can be measured to ensure proper drying of the lines (H20 ⁇ -70°C).
- the first isolation valve 6 is open.
- the fifth isolation valve 16 is open.
- the second isolation valve 8 is closed and the fourth isolation valve 14 is gradually opened and the pressure can be expected to drop to around 10 bar.
- the fourth isolation valve 14 can be closed and the first isolation valve 6 can be opened.
- the first isolation valve 6 can be closed again and the fourth isolation valve 14 opened until it reaches 10 bar again.
- a water analyzer 26 is connected to the analysis output 12, it is necessary to reach a dew point lower than -70° C. (depending on the response time of the corresponding sensor).
- Moisture is an impurity present mainly in hydrogen filling stations in particular. The presence of water can make the sample non-compliant with the hydrogen quality standard, making its analysis or measurement preferably systematic during a hydrogen sample.
- the first isolation valve 6 can be opened and the fourth isolation valve 14 closed.
- the lines being correctly purged, it is possible to fill the sampling tank 5 .
- the first isolation valve 6 can be opened, as can the inlet valve 10 of the sampling tank 5 until the pressure stabilizes at, for example, 180 bar.
- Tank 5 body temperature should rise (confirming tank 5 filling).
- the first isolation valve 6 can be closed and the fourth isolation valve 14 can be opened.
- the pressurized gas is evacuated via line 23 for evacuation.
- the fourth isolation valve 14 can be closed.
- the first isolation valve 6 and the second isolation valve 8 can be opened gradually to refill the reservoir 5 for sampling.
- This operation can be repeated, for example ten times and the last time the pressure in the sampling tank 5 can be stabilized at 180 bar for example.
- the tap is closed (inlet 10) and the first isolation valve 6 is closed.
- the sample is taken.
- the fourth isolation valve 14 can be opened to lower the pressure in the circuit.
- the first isolation valve 6 can be opened, as can the third isolation valve 13 (the opening of the third isolation valve 13 evacuates the flow of gas to the evacuation line 23).
- compression/expansion cycles can be performed by acting on the first isolation valve 6 and the third isolation valve 13 (emptying of tank 5).
- the outlet valve 11 of the sampling tank 5 can be closed then that of the inlet 10. The sampling is carried out.
- the first isolation valve 6 is closed.
- the third isolation valve 13 remains open to empty the pressure of the entire circuit for a determined time (a few minutes for example). This purges the sample line.
- This procedure preferably uses an aforementioned device but it can be applied to other sampling devices.
- Leak tests are first carried out at low pressure (eg 40 bar) and, if conclusive, these tests can be repeated at higher pressure (eg 180 bar).
- the moisture analyzer 26 connected to the output 12 monitors the moisture content of the sampling circuit and before sampling.
- the first isolation valve 6 and the second isolation valve 8 are open.
- the fourth isolation valve 14, the fifth isolation valve 16 and the inlet valve 10 of tank 5 are closed.
- the first isolation valve 6 is closed and the fourth isolation valve 14 is gradually opened and the pressure can be expected to drop to around 10 bar.
- the fourth isolation valve 14 can be closed and the first isolation valve 6 can be opened.
- the first isolation valve 6 can be closed again and the fourth isolation valve 14 opened until it reaches 10 bar again.
- the first isolation valve 6 can be opened and the fourth isolation valve 14 and the second isolation valve 8 are closed.
- the fifth isolation valve 16 can be opened so that the gas to be sampled is analyzed by the humidity analyzer installed at the outlet 12.
- the humidity analysis 26 gives a result that does not comply with the standard (above a predetermined threshold), the user can be asked if he wishes to sample all the same in order to check the other impurities or if he wishes to correct the malfunction before sampling.
- the humidity analysis 26 gives a result that complies with the standard (ISO standard for example, these standards being liable to change), it is possible to purge the sampling tank 5 .
- the first isolation valve 6, the second isolation valve 8 and the inlet valve 10 of tank 5 are open.
- the fourth isolation valve 14 and the fifth isolation valve 16 are closed.
- the first isolation valve 6 is closed and the fourth isolation valve 14 is gradually opened and the pressure can be expected to drop to around 10 bar.
- the inlet valve 10 of the tank 5 is closed and the first isolation valve 6 is closed. The sample is taken.
- the fourth isolation valve 14 can be opened to lower the pressure in the circuit with a purge via the pipeline
- the fluid circuit preferably comprises an upstream pressure gauge 24 disposed in a housing 20 which comprises an inlet connected (preferably directly) to the inlet connector 9 and an outlet connected directly to the inlet of a housing 20 adjacent to another valve 6 control.
- This upstream manometer 24 is preferably configured to measure the pressure in a range of 0 to 1000 bar.
- this first housing 20 may include a second inlet forming an inlet connector 25 (for gas at lower pressure for example).
- this device can take gas at lower pressure via the other inlet 25 on hydrogen station or production plant circuits with the inlet connector 25 then by visualizing the pressure with the manometer
- the gas sampling method preferably uses the aforementioned device.
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2021/071276 WO2023006204A1 (fr) | 2021-07-29 | 2021-07-29 | Dispositif de prélèvement d'échantillon de gaz |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4377664A1 true EP4377664A1 (fr) | 2024-06-05 |
Family
ID=77249835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21751812.5A Withdrawn EP4377664A1 (fr) | 2021-07-29 | 2021-07-29 | Dispositif de prélèvement d'échantillon de gaz |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20240377288A1 (fr) |
| EP (1) | EP4377664A1 (fr) |
| WO (1) | WO2023006204A1 (fr) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6302141B1 (en) | 1996-12-03 | 2001-10-16 | Insync Systems, Inc. | Building blocks for integrated gas panel |
| US5860676A (en) | 1997-06-13 | 1999-01-19 | Swagelok Marketing Co. | Modular block assembly using angled fasteners for interconnecting fluid components |
| WO2005008107A2 (fr) | 2003-07-11 | 2005-01-27 | Michael Doyle | Systeme modulaire de distribution de fluides |
| FR2907219B1 (fr) * | 2006-10-17 | 2008-12-12 | Alcatel Sa | Caracterisation de gaz par spectrometrie optique a emission |
| FR3010482B1 (fr) * | 2013-09-12 | 2015-10-16 | Air Liquide | Dispositif d'echantillonnage de gaz et station de remplissage comprenant un tel dispositif |
| JP6333714B2 (ja) * | 2014-12-15 | 2018-05-30 | 岩谷産業株式会社 | 試料採取装置及び試料採取方法 |
| EP3299778B1 (fr) * | 2016-09-26 | 2020-05-06 | Tatsuno Corporation | Dispositif et procédé d'étalonnage |
| FR3069905B1 (fr) | 2017-08-03 | 2019-09-06 | Alcrys Fluid Control & Services | Module pour un kit de distribution et de regulation d’un gaz sous pression, kit et systeme de distribution et de regulation associes |
| US10502649B1 (en) * | 2018-09-05 | 2019-12-10 | Air Products And Chemicals, Inc. | Apparatus and method for testing compressed gas dispensing stations |
-
2021
- 2021-07-29 WO PCT/EP2021/071276 patent/WO2023006204A1/fr not_active Ceased
- 2021-07-29 EP EP21751812.5A patent/EP4377664A1/fr not_active Withdrawn
- 2021-07-29 US US18/293,100 patent/US20240377288A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20240377288A1 (en) | 2024-11-14 |
| WO2023006204A1 (fr) | 2023-02-02 |
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