Cryogenic fluid supply device and tank filling installation

Abstract

The invention relates to a device for supplying cryogenic fluid under pressure comprising a thermally insulated container and composed of an internal reservoir (2) for the cryogenic liquid to be pumped, for example hydrogen, and an external reservoir (3) delimiting a sealed volume around the internal reservoir (2), the internal (2) and external (3) reservoirs extending vertically and being closed at their upper end by a set of cover(s) (11, 12, 13), the device (1) comprising a pumping system (9, 10) mounted on the set of cover(s) (11, 12, 13) and comprising a lower end housed in the internal reservoir (2) to pump the cryogenic liquid therein, the device (1) further comprising a circuit (4) for supplying cryogenic liquid to supply the internal reservoir (2) and a discharge circuit (7) for transferring the cryogenic liquid pumped by the pumping system (9, 10) outside the internal tank (2),the pumping system comprising at least one piston pump (9, 10) actuated by an actuator (19), preferably linear. Abstract figure: Fig. 1,

Description

Title of the invention: Device for supplying cryogenic fluid and tank filling installation

[0001] The invention relates to a device for supplying cryogenic fluid and a tank filling installation.

[0002] The invention relates more particularly to a device for supplying cryogenic fluid under pressure comprising a thermally insulated container and composed of an internal tank delimiting a volume configured for storing cryogenic liquid to be pumped, for example liquid hydrogen, and an external tank arranged around the internal tank by delimiting a sealed volume around the internal tank, in the configuration of use of the device, the internal and external tanks extending vertically and being closed at their upper end by a set of cover(s), the device comprising a pumping system mounted on the set of cover(s) and comprising a lower end housed in the volume delimited by the internal tank and configured to pump the cryogenic liquid therein,the device further comprising a cryogenic liquid supply circuit configured to supply the internal tank with cryogenic fluid and a discharge circuit configured to transfer the cryogenic liquid pumped by the pumping system out of the internal tank.

[0003] Projects for refueling vehicles with this pressurized liquid hydrogen pose challenges in achieving the expected performances in terms of temperature, pressure and flow rate.

[0004] Currently known solutions consist of pumping liquid hydrogen in industrial refueling applications (liquid transfer) or pumping liquid hydrogen which is then vaporized at very high pressure.

[0005] An aim of the present invention is to overcome all or part of the drawbacks of the prior art noted above.

[0006] To this end, the device according to the invention, moreover in accordance with the generic definition given in the preamble above, is essentially characterized in that the pumping system comprises at least one piston pump actuated by an actuator, preferably linear.

[0007] Furthermore, embodiments of the invention may include one or more of the following features: - the pumping system comprises two piston pumps connected in parallel to the discharge circuitry and configured to be operated in a staggered manner to ensure a continuous flow of pumped cryogenic liquid in the discharge circuit, the set of cover(s) comprises a first cover and a second cover, the second cover closing an opening in the first cover, the second cover forming a support for the pumping system and being mounted in a sealed and removable manner on the second cover, the pumping system being configured to be mounted or dismounted vertically relative to the container with the mounting or dismounting of the second cover, the discharge circuitry comprises a discharge pipe having a lower end connected to the lower end of the pumping system and an upper end connected to the set of cover(s), in the configuration for use of the device, a part of the discharge pipe being immersed in the cryogenic liquid to be pumped, the upper end of the discharge pipe is connected to the second cover and opens onto the latter, the cryogenic liquid supply circuit includes a set of valve(s) and passes through the sealed volume delimited around the internal tank by the external tank, the set of cover(s) comprises at least one degassing outlet passage connected to a set of degassing pipe(s) passing through the sealed volume delimited around the internal tank by the external tank (3), the degassing pipe assembly(s) comprises a first degassing pipe having a first end connected to an upper end of the internal tank and a second end opening at a connection outside the container, the first degassing pipe comprises a valve, the set of degassing pipe(s) comprises at least one second degassing pipe having a first end connected to the first degassing pipe and a second end opening at a connection or passage outside the container, the device comprises at least one second degassing pipe fitted with a valve and / or connected to a pressure-sensitive safety valve located outside the container, the pumping system comprises a piston rod which extends vertically in the internal reservoir, the device comprising a structure for supporting and guiding the pumping system mounted around the piston rod inside the internal reservoir, the device further comprising a structure thermal insulation interposed around the support and guide structure, - the thermal insulation structure is mounted integral with the second cover between the second cover and a lower end of the support and guide structure, - the thermal insulation structure comprises a vertical stack of a set of layer(s) of insulating foam and / or a set of thermal screen(s), - the device comprises a purge circuit comprising at least one pipe having a first end opening at a connection or passage outside the container and a second end connected to the supply circuit, - the internal tank has a liquid level control and regulation system comprising at least one of: a pressure sensor measuring the pressure in the internal tank, a temperature sensor measuring the temperature in the internal tank, a liquid level sensor measuring the liquid level in the internal tank, - all the valves and devices for measuring and processing the pumped fluid flow are housed in the sealed volume delimited around the internal tank by the external tank.

[0008] The invention also relates to an installation for filling tanks with pressurized cryogenic fluid, in particular liquefied hydrogen, comprising at least one fluid supply device conforming to any one of the characteristics above or below, in which the cryogenic liquid supply circuit is configured to be connected to at least one source of liquefied cryogenic fluid, the installation comprising at least one pressurized cryogenic fluid distributor provided with a transfer pipe having one end configured to be connected to a tank to be filled, the installation comprising a distribution circuit connecting the discharge circuit of at least one fluid supply device to at least one fluid distributor.

[0009] According to other possible particularities: - the installation comprises several fluid supply devices connected in parallel to one or more fluid distributors via the distribution circuit, the distribution circuit comprising a common distribution pipe and a set of distribution valve(s) configured to allow the transfer of fluid selectively from one or more fluid supply devices to the fluid distributor(s), - the installation includes at least one connected source of cryogenic liquid to the cryogenic liquid supply circuit of at least one fluid supply device, - the installation comprises at least one source of cryogenic liquid connected to the cryogenic liquid supply circuit of at least one fluid supply device, - the fluid distributor comprises a pressurized gas recovery circuit connected to the transfer line and a gas recovery member, for example the cryogenic liquid source, - the fluid distributor comprises a gas recovery circuit having one end connected to the transfer pipe and one end connected to a gas recovery member, for example the cryogenic liquid source and / or connected to the chimney, - the installation includes a reserve of sweeping gas, for example nitrogen, and a purge network connecting the reserve of sweeping gas to the transfer line of the fluid distributor and to the supply device(s).

[0010] The invention may also relate to any alternative device or method comprising any combination of the above or below features within the scope of the claims.

[0011] Other features and advantages will appear on reading the description below, given with reference to the figures in which: Brief description of the figures

[0012] The invention will be better understood on reading the following description given solely by way of example and with reference to the appended drawings in which:

[0013] [Fig-1] is a schematic and partial vertical sectional view illustrating an example of a device for supplying cryogenic fluid according to an exemplary embodiment of the invention,

[0014] [Fig.2] is a schematic and partial vertical sectional view illustrating a detail of a pumping system of the cryogenic fluid supply device according to a possible exemplary embodiment of the invention;

[0015] [Fig.3] is a schematic and partial view illustrating an example of installation of filling of tanks using such a cryogenic fluid supply device,

[0016] [Fig.4] is a schematic and partial view illustrating an example of a distributor of fluid from such a filling installation. Detailed description

[0017] In all the figures, the same references refer to the same elements.

[0018] In this detailed description, the following embodiments are examples. Although the description refers to one or more embodiments, this does not mean that the features apply only to a single embodiment. Single features of different embodiments may also be combined and / or interchanged to provide other embodiments.

[0019] The device 1 for supplying cryogenic fluid under pressure comprises a thermally insulated container composed of an internal cryogenic tank 2 delimiting a volume configured for the storage of cryogenic liquid to be pumped, for example liquid hydrogen. The container further comprises an external tank 3 arranged around the internal tank 2 by delimiting a sealed volume around the internal tank 2 (preferably a vacuum volume). For example, the internal tank 2 is housed in the volume of the external tank 3.

[0020] In the configuration of use of the device 1, the internal 2 and external 3 reservoirs extend vertically from respective lower bottoms and are closed at their upper end by a set of common cover(s) 11, 12, 13.

[0021] For example, a main cover 11 closes the external tank 3 (for example by welding). This main cover 11 has an opening for the passage of the internal tank 2 and this opening is closed in a sealed manner by another intermediate cover 12 which closes the internal tank 2. For example, the intermediate cover 12 is fixed by welding on the main cover 11. Finally, the device 1 may comprise a third support cover 13 mounted on the intermediate cover 12 to close in a sealed manner a passage within the intermediate cover 12. This support cover 13 may be mounted in a sealed manner in a removable (unmountable) manner on the intermediate cover 12 and may serve as a support for a pumping system of the device 1 and described in more detail below.

[0022] The pumping system 9, 10 mounted on the cover assembly(s) has a lower end housed in the volume delimited by the internal reservoir 2 and configured to pump the cryogenic liquid there and an upper end located above the cover assembly (outside the container) comprising the hot actuation system (motor(s)).

[0023] The device 1 comprises a cryogenic liquid supply circuit 4 configured to supply the internal tank 2 with cryogenic fluid (supplied by a source). The device 1 further comprises a discharge circuit 7 configured to transfer the cryogenic liquid pumped by the pumping system 9, 10 out of the internal tank 2.

[0024] The pumping system comprises at least one piston pump 9, 10 actuated by a preferably linear actuator 19. As illustrated, the pumping system preferably comprises two piston pumps connected in parallel to the discharge circuitry 7, 8 and configured to be actuated in a staggered manner to ensure a continuous flow of cryogenic liquid pumped into the discharge circuitry 7. That is, the two alternative pumps 9, 10 are used in parallel and form a single compression stage delivering a flow at constant pressure and continuously. This makes it possible to provide controlled mass flow profiles.

[0025] Each piston can be driven by a respective linear motor 19, 20. This allows precise control of the position and heading of the piston. This allows for example an average stroke of 5 cm to 50 cm, a moderate frequency of the order of 0.1 to 5 Hz and moderate forces of 2 to 20 kN. The linear motor drive allows a non-sinusoidal cycle such as a square profile for a constant mass flow rate or operation at low speed during the intake phase and at high speed during the compression phase.

[0026] The arrangement comprises two separate heads operating at a phase of 180 degrees apart.

[0027] Each piston pump comprises for example a piston mounted at the end of an axis and which slides in a reciprocating movement in a cylinder to carry out compression and admission phases in a compression chamber. Preferably, each piston is movable in translation in a single-body cylinder. This limits the costs of parts and assembly. The piston head is preferably screwed onto the rod to be easily replaced.

[0028] Each lower pumping end may comprise a respective inlet valve 119, 100 and a respective discharge valve 219, 210.

[0029] The inlet valve 119, 110 and discharge valve 219, 210 may be arranged relatively to optimize the pressure drop on injection into the compression chamber to limit the generation of vaporization gas (flash) on injection and thus optimize the volumetric efficiency of the pump. For example, each pump comprises a set of slot(s) located at the axis and / or the piston configured to ensure gas evacuation during movements of the piston.

[0030] The discharge circuit 7 comprises a discharge pipe having a lower end connected to the lower end of the pumping system 9, 10 and an upper end connected to the support covers 13. For example, the discharge valves 219, 210 are connected in parallel to a lower end of the discharge pipe.

[0031] The discharge pipe extends from bottom to top and in the configuration of use of the device 1, a part of this discharge pipe is immersed in the cryogenic liquid to be pumped. This configuration ensures a heat exchange with the reserve of cold liquid to be pumped, keeping the pumped fluid cold before it leaves the container. This ensures the preservation of the exhaust temperature under cryogenic conditions.

[0032] As illustrated in [Fig.2], each pump 9, 10 may comprise a rod 42 of piston which extends vertically in the internal reservoir 2 and a structure 21 for supporting and guiding the rod 42 and piston 43 assembly. This support and guide structure 21 is mounted around the piston rod 42 inside the internal reservoir 2. The support and guide structure 21 comprises, for example, a tubular guide provided with shoulders at its ends.

[0033] In addition, the device 1 preferably comprises a thermal insulation structure 22, 23 interposed around the support and guide structure 21.

[0034] This thermal insulation structure 22, 23 is for example mounted integrally with the support cover 13 between this cover 13 and a lower end of the support and guide structure 21. The thermal insulation structure comprises for example a vertical stack of a set of layer(s) 22 of thermal insulation foam and / or a set of thermalized thermal screen(s) 23 (cooled for example by cryogenic fluid from the internal tank 2). As a variant or in combination, the thermal insulation structure may comprise an additional vacuum separation space.

[0035] Thus, the pumping system can be simply lifted vertically with its support cover 13 for maintenance, giving direct and rapid access to the repairable parts. In particular, at least one of: the discharge valves 219, 210, the inlet valves 119, 110, the discharge pipe, the support and guide structure 21, the thermal insulation structure 22, 23 can be integral with the support cover 13. Lifting the latter gives direct access to the repairable parts of the pumping part.

[0036] The volume of liquid in which the pumping ends are immersed is vacuum-insulated by the volume of the external reservoir 3 and which is used for the integration of the circuitry (valves and fluid coupling in particular). Thus, the cryogenic liquid supply circuitry 4 may comprise a set of valve(s) 14 and may pass through the sealed volume delimited around the internal reservoir 2 by the external reservoir 3.

[0037] The assembly of cover(s) comprises at least one degassing outlet passage 6 connected to a set of degassing pipe(s) 8, 120, 140, 15 passing through the sealed volume delimited around the internal reservoir 2 by the external reservoir 3. For example, a first degassing pipe 8 may extend between a first end connected to an upper end of the internal reservoir 2 and a second end opening at a connection 17 to the outside of the container. The first degassing pipe 8 comprises for example a degassing valve 14. As illustrated, the set of degassing pipes may comprise at least one second degassing pipe 120, 140, 15 having a first end connected to the first degassing pipe 8 and a second end opening at a connection or passage to the outside of the container. Preferably, at least one pipe 15 of degassing is provided with a valve 18 and / or connected to a pressure-sensitive safety valve 16 located outside the container (the discharged gas passing through a cover 11). Preferably, a redundant safety pressure relief valve 16 is provided for the internal tank 2. In addition, preferably a thermal expansion protection valve is also provided for each circuit node.

[0038] In an advantageous embodiment illustrated, the cryogenic liquid supply circuit 4 is without a valve in the external tank 3 but may comprise only a self-sealing valve 40 at a connection opening onto the external wall of the external tank 3.

[0039] As illustrated, the device 1 preferably comprises a purge circuit 24 comprising at least one pipe having a first end opening at a connection or passage outside the container and a second end connected to the supply circuit 4.

[0040] This simplified structure can thus use only two valves 14, 18, one valve 14 on the degassing line 8 to control the pressure level in the internal tank 2 and one valve 18 on another degassing line 15 for forced discharge to the vent 16 and / or for an inerting and conditioning procedure of the circuitry.

[0041] Thus, the volume of the external reservoir 3 forms a valve box.

[0042] As illustrated, the internal reservoir 2 preferably has a system 38 for controlling and regulating the liquid level in the internal reservoir 2. This control and regulation system 38 may comprise, for example, at least one of: a pressure sensor measuring the pressure in the internal reservoir 2, a temperature sensor 37 measuring the temperature in the internal reservoir 2, a liquid level sensor 39 measuring the liquid level in the internal reservoir 2. The measurements from the sensor(s) may be processed by an electronic member 38 comprising a microprocessor for the purpose, for example, of automated filling of the internal reservoir 2.

[0043] One or more devices 1 for supplying cryogenic fluid under pressure can be used in tank filling stations.

[0044] [Fig. 3] illustrates an installation 100 for filling tanks with pressurized cryogenic fluid, in particular liquefied hydrogen, comprising three fluid supply devices 1.

[0045] The circuitry 4 of the fluid supply devices 1 is connected to at least one source 25 of liquefied cryogenic fluid (here a cryogenic liquid storage). A source consisting of a static tank makes it possible to recover a significant quantity of the boiling gas generated by the pumping system or any other part of the installation 100. Of course, as a variant, this source 2 could be comprised or also be made up of a mobile delivery tank.

[0046] The installation 100 comprises three pressurized cryogenic fluid distributors 26, each provided with a transfer pipe 27 having one end configured to be connected to a tank 28 to be filled (quick connection). The installation 100 comprises a distribution circuit 29 connecting the discharge circuit 7 of the fluid supply device 1 to the distributors 26.

[0047] In this example, the fluid supply devices 1 are connected in parallel to the fluid distributors 26 via the cryogenic distribution circuitry 29. This distribution circuitry 29 may comprise a single common distribution pipe and a set of distribution valve(s) 30, 31 configured to allow the transfer of fluid selectively from one or more fluid supply devices 1 to the fluid distributor(s) 2). The set of distribution valves 30, 31 may comprise one or more three-way valves and / or several two-way valves arranged to allow the fluid to be distributed from any one of the supply devices to any one of the distributors 26.

[0048] The installation 100 may comprise a gas evacuation chimney 32 connected to the set of pipe(s) 8, 120, 140, 15 for degassing the fluid supply devices 1.

[0049] Each dispenser 26 includes a liquid transfer line 27, the downstream end of which may include a hose with a quick connector configured to connect to a tank to be filled. A hose support arm may be provided to lower the felt mass and translational forces for the flexible cryogenic lines and a connecting nozzle if applicable. A heater may be mounted at the base of the dispenser 26 hose system to defrost and remove dust from the nozzle before / after use.

[0050] As illustrated, the transfer line 27 may include an isolation valve 127 and possibly a flow meter 227.

[0051] Similarly, each fluid distributor 26 may comprise a circuit 33 for recovering pressurized gas connected to the transfer pipe 27 and a gas recovery member, for example towards the source 25 of cryogenic liquid.

[0052] The distributor 26 may comprise a first gas recovery pipe 34 having an upstream end located at a flexible hose and intended to be connected to the tank to be filled (to depressurize it). A second downstream end of this first gas recovery pipe 34 is provided for example to be connected to the source or any other gas collection system (vaporization gas). Between these upstream and downstream ends, the gas recovery pipe 34 may comprise a valve 134 and / or a pressure reducer 234.

[0053] A second gas recovery line 33 connected to a valve 133 may be connected to transfer line 27.

[0054] A transverse pipe 41 (equipped with a valve 141) may be provided to connect the transfer pipe 27 and the first gas recovery pipe 34.

[0055] One or more purge lines may be connected to the gas recovery line 34 and / or the transfer line 27 to supply and recover a flow of purge gas during a purging / sweeping operation of the circuits. This scavenging gas, for example nitrogen, may be supplied by a reserve 35 of scavenging gas of the installation 100. This purge gas may also preferably supply the circuits of the fluid transfer devices 1 via a purge network 36.

[0056] This conditioning and inerting system makes it possible to send gas (N2, H2, He) and the appropriate quantity to specific locations in the circuits.

[0057] The parallel arrangement of the distribution devices 1 and the distributors 26 allows in particular their separate maintenance without stopping the installation 100 as a whole.

[0058] All or part of the valves and / or members can be controlled by an electronic control member comprising a microprocessor and which communicates with the installation 100.

Claims

Claims

1. Device for supplying cryogenic fluid under pressure comprising a thermally insulated container and composed of an internal tank (2) delimiting a volume configured for storing cryogenic liquid to be pumped, for example liquid hydrogen, and an external tank (3) arranged around the internal tank (2) delimiting a sealed volume around the internal tank (2), in the configuration of use of the device (1), the internal (2) and external (3) tanks extending vertically and being closed at their upper end by a set of cover(s) (11, 12, 13), the device (1) comprising a pumping system (9, 10) mounted on the set of cover(s) (11, 12, 13) and comprising a lower end housed in the volume delimited by the internal tank (2) and configured to pump the cryogenic liquid therein,the device (1) further comprising a cryogenic liquid supply circuit (4) configured to supply the internal tank (2) with cryogenic fluid and a discharge circuit (7) configured to transfer the cryogenic liquid pumped by the pumping system (9, 10) out of the internal tank (2), characterized the pumping system comprises two piston pumps (9, 10) actuated by an actuator (19), preferably linear, the two piston pumps being connected in parallel to the discharge circuit (7, 8) and configured to be actuated in an offset manner to ensure a continuous flow of cryogenic liquid pumped into the discharge circuit (7), i.e. the two alternative pumps (9, 10) are used in parallel and form a single compression stage delivering a flow at constant pressure and continuously.,

2. Device according to claim 1, characterized in that the set of cover(s) (11, 12, 13) comprises a first cover (12) and a second cover (13), the second cover (13) closing an opening in the first cover (12), the second cover (13) forming a support for the pumping system (9, 10) and being mounted in a sealed and removable manner on the second cover (13), the pumping system being configured to be mounted or dismounted vertically relative to the container with the mounting or dismounting of the second cover (13).

3. Device according to any one of claims 1 to 2, characterized in that the discharge circuitry (7) comprises a discharge pipe- discharge having a lower end connected to the lower end of the pumping system (9, 10) and an upper end connected to the set of cover(s) (12, 13), in the configuration of use of the device (1), a part of the discharge pipe being immersed in the cryogenic liquid to be pumped.

4. Device according to claims 2 and 3, taken in combination, characterized in that the upper end of the discharge pipe (7) is connected to the second cover (13) and opens onto the latter.

5. Device according to any one of claims 1 to 4, characterized in that the circuitry (4) for supplying cryogenic liquid comprises a set of valve(s) and passes through the sealed volume delimited around the internal tank (2) by the external tank (3).

6. Device according to any one of claims 1 to 5, characterized in that the assembly of cover(s) (11, 12, 13) comprises at least one degassing outlet passage (6) connected to a assembly of degassing pipe(s) (8, 120, 140, 15) passing through the sealed volume delimited around the internal reservoir (2) by the external reservoir (3).

7. Device according to claim 6, characterized in that the set of degassing pipe(s) (8, 120, 140, 15) comprises a first degassing pipe (8) having a first end connected to an upper end of the internal reservoir (2) and a second end opening at a connection (17) outside the container.

8. Device according to claim 6, characterized in that the first degassing pipe (8) comprises a valve (14).

9. Device according to claim 6 or 7, characterized in that the set of degassing pipe(s) (8, 120, 140, 15) comprises at least one second degassing pipe (120, 140) having a first end connected to the first degassing pipe (8) and a second end opening at a connection or passage outside the container.

10. Device according to claim 9, characterized in that it comprises at least one second degassing pipe (15) provided with a valve (18) and / or connected to a pressure-sensitive safety valve (16) located outside the container.

11. Device according to any one of claims 1 to 10, characterized in that the pumping system (9, 10) comprises a piston rod which extends vertically in the internal reservoir (2), the device (1) comprising a structure (21) for supporting and guiding the pumping system (9, 10) mounted around the piston rod inside the internal reservoir (2), the device (1) further comprising a thermal insulation structure (22, 23) interposed around the support and guiding structure (21).

12. Device according to claim 11 combined with claim 3 or 5, characterized in that the thermal insulation structure (22, 23) is mounted integral with the second cover (13) between the second cover (13) and a lower end of the support and guide structure (21).

13. Device according to claim 11 or 12, characterized in that the thermal insulation structure (22, 23) comprises a vertical stack of a set of layer(s) of insulating foam and / or a set of thermal screen(s).

14. Device according to any one of claims 1 to 13, characterized in that it comprises a purge circuit (24) comprising at least one pipe having a first end opening at a connection or passage outside the container and a second end connected to the supply circuit (4).

15. Installation for filling tanks of pressurized cryogenic fluid, in particular liquefied hydrogen, comprising at least one fluid supply device (1) according to any one of claims 1 to 14, in which the cryogenic liquid supply circuit (4) is configured to be connected to at least one source (25) of liquefied cryogenic fluid, the installation (100) comprising at least one pressurized cryogenic fluid distributor (26) provided with a transfer pipe (27) having one end configured to be connected to a tank (28) to be filled, the installation (100) comprising a distribution circuit (29) connecting the discharge circuit (7) of at least one fluid supply device (1) to at least one fluid distributor (26).

16. Installation according to claim 15 characterized in that it comprises several fluid supply devices (1) connected in parallel to one or more fluid distributors (26) via the distribution circuit (29), the distribution circuit (29) comprising a common distribution pipe and a set of distribution valve(s) (30, 31) configured to allow the transfer of fluid selectively from one or more fluid supply devices (1) to the or the fluid distributors (26).

17. Installation according to any one of claims 15 or 16 characterized in that it comprises at least one source (25) of cryogenic liquid connected to the cryogenic liquid supply circuit (4) of the at least one fluid supply device (1).

18. Installation according to any one of claims 15 to 17 comprising at least one fluid supply device (1) according to claim 7 or 8, characterized in that it comprises a gas evacuation chimney (32) connected to the set of degassing pipe(s) (8, 120, 140, 15) of the fluid supply device (1).

19. Installation according to claims 17 and 18 characterized in that the fluid distributor (26) comprises a circuit (33) for recovering pressurized gas connected to the transfer pipe (27) and a gas recovery member, for example the source (25) of cryogenic liquid.

20. Installation according to claims 18 and 19, characterized in that the fluid distributor (26) comprises a gas recovery circuit (33, 34) having one end connected to the transfer pipe (27) and one end connected to a gas recovery member, for example the source (25) of cryogenic liquid and / or connected to the chimney (32).

21. Installation according to any one of claims 15 to 20, characterized in that it comprises a reserve (35) of sweeping gas, for example nitrogen, and a purge network (36) connecting the reserve (35) of sweeping gas to the transfer pipe (27) of the fluid distributor (26) and to the supply device(s) (1).

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