Use of a device for testing and inspecting an industrial hydrogen production plant

Abstract

Use of a device (10) for testing and inspecting an industrial hydrogen production plant (100) with several electrolysis devices configured to produce hydrogen from water using electric current, wherein the device (10) has a water circuit for supplying the electrolysis devices with water and electrical connections for connecting the hydrogen production plant (100) to an electric current source or voltage source or an electric power grid that supplies the electrolysis devices of the hydrogen production plant (100) with electrical power for the production of hydrogen, wherein the device (10) has an encapsulated receiving space (11) configured to receive the hydrogen production plant (100) to be tested, wherein the assemblies of the hydrogen production plant (100) are arranged in a container (101).and wherein the encapsulated receiving space (11) of the device (10) is configured to receive the container (101).

Description

[0001] The invention relates to the use of a device for testing and inspecting an industrial hydrogen production plant.

[0002] DE 10 2017 108 413 A1 discloses an electrolysis device with a cell stack comprising several cell stack elements, wherein the cell stack elements of the cell stack form several electrolysis cells. Furthermore, the electrolysis device known from this prior art has a force application unit by which a force can be exerted on the cell stack to compress the cell stack elements of the cell stack in a fluid-tight manner. The force application unit has opposing end plates between which the cell stack is arranged and compressed. The force application unit also includes compression devices comprising spring elements and struts, wherein the spring force of the spring elements presses the end plates against each other, compressing the cell stack. Connections are provided on the end plates of the electrolysis device, namely water supply connections, water discharge connections, and hydrogen connections.Water is supplied to the electrolysis device via the water inlet connections, while water and oxygen are removed from the electrolysis device via the water outlet connections. The hydrogen connections are used to remove or pass through the hydrogen produced during electrolysis from the electrolysis device.

[0003] In a hydrogen production plant, several electrolysis devices are installed, wherein the electrolysis devices are connected in series in the respective cascade, forming at least one cascade, preferably several parallel cascades.

[0004] The electrolysis units of a hydrogen production plant are connected to a water circuit within the plant, which supplies the electrolysis units with hydrogen for hydrogen production. For hydrogen production, the electrolysis units are connected to an electrical power source or voltage source, or to the electrical grid, via electrical connections within the plant.

[0005] The applicant markets an industrial plug-and-play hydrogen production plant under the product name ME450. This plant requires an electrical power supply of approximately 1 MW to produce about 450 kg of high-purity hydrogen per day. The components of such a hydrogen production plant, such as the electrolysis units, are housed in a standard container, allowing the plant to be transported as a single unit. For commissioning, it only needs to be connected to an electrical power source or grid, a water supply, and any necessary ancillary connections (such as wastewater, medium-voltage grid connection, etc.). These transportable hydrogen production plants can be shipped as a single unit from the manufacturer to the customer and commissioned there by connecting to an electrical grid or grid.an electrical power source or voltage source, as well as a water source and any auxiliary connections, must be put into operation.

[0006] Hydrogen production plants must undergo comprehensive inspection and testing. In particular, manufacturer-side inspection and testing of a hydrogen production plant before delivery to the customer is crucial. Since hydrogen is explosive and poses a hazard, a safe testing environment is essential for inspecting and testing a hydrogen production plant. Currently, no devices are known that allow for the safe inspection and testing of a fully operational hydrogen production plant, especially by the manufacturer, before delivery to a customer.

[0007] WO 2021 / 104978 A1 discloses a device for testing and inspecting a hydrogen production plant with several electrolysis units designed to produce hydrogen from water using electricity. The device for testing and inspecting a hydrogen production plant includes a water circuit for supplying the electrolysis units with water. The device also includes electrical connections for connecting the hydrogen production plant to an electrical current source, voltage source, or power grid that supplies the electrolysis units of the hydrogen production plant with electrical power for the production of hydrogen.

[0008] The object of the invention is to provide a use for a device for testing and inspecting an industrial hydrogen production plant, in order to safely test and inspect a hydrogen production plant inside or outside a building. This object is achieved by a use V according to claim 1.

[0009] The device for testing and inspecting an industrial hydrogen production plant has an encapsulated receiving chamber designed to accommodate the hydrogen production plant under test. Encapsulation is understood to mean a substantially gas-tight enclosure. The components of the hydrogen production plant are arranged in a container, with the encapsulated receiving chamber of the device being configured to hold the container.

[0010] Should hydrogen escape uncontrollably from the hydrogen production plant during inspection or testing, this hydrogen will be contained in the encapsulated collection chamber, preventing it from escaping into the environment.

[0011] Preferably, the device according to the invention comprises a supply blower or intake device configured to supply air, in particular ambient air, to the receiving chamber from the outside, and / or an exhaust blower or extraction device configured to discharge air from the receiving chamber to the outside. A defined atmosphere can be established in the encapsulated receiving chamber via the supply blower or intake device and / or the exhaust blower or extraction device of the device, for example, by supplying air to the encapsulated receiving chamber via the supply blower or intake device and / or by extracting atmosphere from the receiving chamber via the exhaust blower or extraction device. This can be achieved through a continuous air exchange between the atmosphere in the receiving chamber of the device and the environment.

[0012] Preferably, the supply blower or intake device and / or the exhaust blower or extraction device is integrated into a substantially completely or partially closed air circuit. A closed air circuit in which the supply blower or intake device and / or the exhaust blower or extraction device are integrated is particularly preferred in order to provide a defined atmosphere while reducing or minimizing pressure differences within the encapsulated receiving space. In a closed air circuit, it is possible to control the extent to which air is fed back from the exhaust blower or extraction device to the supply blower or intake device, the extent to which fresh air is supplied from outside, and the extent to which stale air is discharged to the outside. In a completely closed air circuit, no air exchange takes place at all.In a partially closed air circuit, the proportion of air exchange can be adjusted as required using suitable means, e.g., proportional valves.

[0013] A closed air circuit exists, for example, when room air from the space (building) surrounding the testing and inspection device is drawn in and returned to the same space, rather than air from the environment. In this way, at least some of the exhausted air is drawn back in and supplied to the testing and inspection device. An open air circuit, on the other hand, is one in which air is drawn in from the environment and also returned to it.

[0014] Preferably, the encapsulated receiving chamber is equipped with at least one hydrogen sensor configured to measure the hydrogen concentration within the chamber. A control unit is configured to operate the supply blower or intake device and / or the exhaust blower or extraction device based on the measured hydrogen concentration in the receiving chamber. The hydrogen sensor measures the hydrogen concentration in the receiving chamber, i.e., in the atmosphere within the receiving chamber. Based on this measurement, the control unit can then activate the supply blower or intake device and / or the exhaust blower or extraction device to prevent the presence of an explosive mixture of hydrogen and oxygen within the receiving chamber.

[0015] Preferably, the device for testing and inspecting a hydrogen production plant includes a conversion device for converting the hydrogen produced during testing and inspecting the hydrogen production plant back into water, in particular at least one catalyst and / or at least one fuel cell. The hydrogen produced during testing and inspecting the hydrogen production plant can be directly converted back into water via the conversion device, with heat being primarily generated in a catalyst and electrical energy being primarily generated in a fuel cell. The conversion device is preferably arranged within the encapsulated receiving space.This allows the total amount of hydrogen present at any given time to be significantly limited, thus reducing the overall risk and consequences of explosions compared to a test or inspection device where the amount of hydrogen present increases continuously during operation. By immediately eliminating the produced hydrogen, it is possible to test or inspect even high-capacity hydrogen production plants essentially without risk.

[0016] The recycled water is preferably collected in a water collection tank. The water collection tank is expediently designed to be pressure-tight in order to receive and temporarily store the pressurized water.

[0017] The water collection container is only depressurized and emptied after the inspection or test has been completed.

[0018] Since the water is ultrapure, and the production of ultrapure water is complex, the converted water can optionally be temporarily stored for reuse in a hydrogen production plant or a testing or inspection device.

[0019] Alternatively or additionally, further devices can be connected to or attached to the testing and inspection device, through which the produced hydrogen is used and / or temporarily stored, for example, a hydrogen tank for (intermediate) storage of the produced hydrogen, a combustion plant for heat generation, a power engine for converting the chemical energy bound in the hydrogen into mechanical energy. Other uses are also possible.

[0020] Preferably, the device for testing and inspecting a hydrogen production plant comprises at least one hydrogen supply line to feed the hydrogen produced during testing or inspection from the hydrogen production plant to a tank, at least one compressed air injector to supply air to the tank, and at least one discharge line to discharge a mixture of hydrogen and air from the tank to the reconversion device. The tank can be located outside or inside the encapsulated receiving space. This is preferred to allow for the controlled discharge of the hydrogen produced during testing or inspection into a tank and the subsequent delivery of a defined mixture of hydrogen and air from the tank to the reconversion device. Air under pressure (compressed air) can be introduced via the compressed air injector.The air in question can be compressed air (using a compressor) or, in particular, compressed ambient air. Due to the hydrogen introduced under pressure, introducing air without pressure is not possible.

[0021] Preferably, the device is used for testing and inspecting an industrial hydrogen production plant, in particular a plug-and-play hydrogen production plant, which can be supplied with electrical power in the range of more than 0.2 megawatts, in particular more than 0.5 and up to 5, preferably between 2 and 5 megawatts (MW) for the production of hydrogen.

[0022] The components of the hydrogen production plant are arranged in a container, in particular an ISO container with a width of 2.4384 meters (8 feet), a height of 2.591 meters (8.5 feet), and a length of 6.058 meters (20 feet), or preferably a length of 12.192 meters (40 feet), wherein the encapsulated receiving space is designed to accommodate the container and any attachments to the container. The device is used in particular for testing or inspecting an industrial hydrogen production plant. Preferably, the device is used for testing or inspecting an industrial plug-and-play hydrogen production plant whose components are housed in a standard container.

[0023] Preferred embodiments of the invention are set forth in the dependent claims and the following description. Exemplary embodiments of the invention are explained in more detail with reference to the drawing, without being limited thereto. The drawing shows: Fig. 1 a schematic representation of a first device for testing and inspecting a hydrogen production plant together with a hydrogen production plant to be tested or inspected, Fig. 2 a schematic representation of a second device for testing and inspecting a hydrogen production plant together with a hydrogen production plant to be tested, Fig. 3 a cross-section through Fig. 2, Fig. 4 a detail of a modification of the device for testing and inspecting a hydrogen production plant according to Fig. 2.

[0024] Fig. Figure 1 shows a schematic representation of a device 10 for testing and inspecting a hydrogen production plant 100.

[0025] The hydrogen production plant 100 to be tested or examined in the apparatus 10 comprises several electrolysis devices (not shown) configured to produce hydrogen from water using electric current. The electrolysis devices typically form several cascades connected in parallel, each consisting of several electrolysis devices connected in series. The hydrogen production plant 100 to be tested or examined in the apparatus 10 further comprises a water circuit to which the electrolysis devices are connected in order to supply the electrolysis devices with water for hydrogen production.Furthermore, the hydrogen production plant 100 to be tested or examined in the device 10 has electrical connections to connect the hydrogen production plant to an electrical current source or an electrical voltage source or an electrical power grid for hydrogen production, and thus to supply the electrolysis devices of the hydrogen production plant 100 with electrical power for the production of hydrogen.

[0026] In the illustrated embodiment, an industrial plug-and-play hydrogen production plant 100 is tested or inspected in the device 10, wherein, in such an industrial plug-and-play hydrogen production plant, assemblies thereof, in particular all electrolysis devices, the water circuit, a water treatment device integrated into the water circuit, and an oxygen separator integrated into the water circuit are arranged in a container 101, specifically in a standard container or ISO container with a width of 2.4384 meters (8 feet), a height of 2.591 meters (8.5 feet), and a length of 6.058 meters (20 feet), or preferably a length of 12.192 meters (40 feet). Fig. In section 1, a door 102 is incorporated into such container 101, through which, for example, maintenance personnel can enter container 101. Furthermore, it shows Fig. 1 as an optional attachment 103 to the container 101 a cooling device 103 of the hydrogen production plant 100 for the removal of heat from the process water circuit.

[0027] The device 10 for testing and inspecting the hydrogen production plant 100 has an encapsulated receiving space 11 which is designed to receive the hydrogen production plant 100 to be tested or inspected, i.e. in Fig. 1 the container 101 and optional attachments 103 to the container 101. In the encapsulated receiving space 11 of the device 10, the entire hydrogen production plant 100 to be tested or inspected can therefore be arranged, which in the illustrated embodiment is a plug-and-play hydrogen production plant which only needs to be supplied with water for hydrogen production and needs to be connected to an electrical current source or an electrical voltage source or an electrical power grid via its electrical connections not shown.

[0028] In the exemplary embodiment of the Fig. 1 The device 10 for testing and inspecting the hydrogen production plant is arranged in a building 200, for example in a manufacturer's factory hall for the hydrogen production plant 100.

[0029] In the illustrated embodiment, the device 10 has a supply blower 12 or an intake device, wherein the supply blower 12 or the intake device is configured to supply air, namely ambient air, to the encapsulated receiving chamber 11 from the outside. Thus, in Fig. 1 The supply blower 12 or the intake device draws fresh air from the environment via a line 13, specifically from outside the building 200 in which the device 10 is arranged, in order to supply the encapsulated receiving chamber 11 with fresh air.

[0030] In the illustrated embodiment, the device 10 further comprises a discharge fan 14 or an extraction device, wherein the discharge fan 14 or the extraction device is configured to discharge atmosphere, namely air located in the receiving chamber 11, from the receiving chamber 11 to the outside, specifically into Fig. 1 via a line 15, which leads outwards from building 200 into the surrounding area.

[0031] In Fig. Accordingly, to provide a defined atmosphere within the encapsulated receiving chamber 11, fresh air is drawn in from the surroundings of the building 200, in which the device 10 is located, via the supply blower 12 or the intake device and supplied to the receiving chamber 11. At the same time, atmosphere is extracted from the receiving chamber 11 into the surroundings of the building 200 via the exhaust blower or the extraction device. This provides an open air circuit for ventilating the encapsulated receiving chamber 11, in particular to ensure that no explosive hydrogen mixture is present in the receiving chamber 11.

[0032] Fig. Figure 1 further shows a vent line 16 to discharge the hydrogen produced during the testing and inspection of the hydrogen production plant 100 into the environment. A valve 17 can be integrated into this vent line 16.

[0033] According to Fig. 1 A hydrogen sensor 18 is arranged within the encapsulated recording chamber 11. Using the hydrogen sensor 18, the hydrogen concentration within the recording chamber 11, i.e., within the atmosphere located in the recording chamber 11, can be measured, with the hydrogen sensor 18 providing its measured value to a control unit 19.

[0034] The control unit 19 is configured to control the supply blower 12 or the intake device and / or the exhaust blower 14 or the extraction device, depending on the measured value of the hydrogen sensor 18, i.e., depending on the hydrogen concentration within the encapsulated intake chamber 11. If the hydrogen concentration within the atmosphere of the encapsulated intake chamber 11 exceeds a limit value, the supply blower 12 and / or exhaust blower 14 are controlled in such a way that the air exchange within the encapsulated intake chamber 11 is increased in order to reduce the hydrogen concentration below the limit value.

[0035] In Fig. 1 the control unit 19 is still set up to control the optional valve 17 integrated into the drain line 16 for the hydrogen.

[0036] In the exemplary embodiment of the Fig. According to Figure 1, the device 10 for testing and inspecting a hydrogen production plant 100 has an encapsulated receiving chamber 11. This encapsulated receiving chamber 11 is designed to accommodate the hydrogen production plant 100 to be tested as a single unit. The hydrogen production plant 100 to be tested is an industrial hydrogen production plant, specifically designed to produce more than 100 kg of hydrogen per day during operation. The device 10 is therefore intended for testing and inspecting industrial hydrogen production plants and not for testing or inspecting laboratory-scale hydrogen production plants.

[0037] A controlled atmosphere prevails in the encapsulated receiving chamber 10, which is provided in particular by the supply blower 12 or the intake device and / or the exhaust blower 14 or the extraction device. The controlled atmosphere in the encapsulated receiving chamber 11 can be monitored metrologically using a hydrogen sensor 18 in order to control the supply blower 12 and / or exhaust blower 14 accordingly.

[0038] Fig. Figure 2 shows a modification of device 10 of the Fig. 1, in which the supply blower 12 or the intake device and the exhaust blower 14 or the extraction device are integrated into a closed air circuit 20. The atmosphere extracted via the extraction device 14 is thus returned towards the supply blower 12 and continuously recirculated. This reduces pressure differences and increases the efficiency of the device 10. A device 21 can be integrated into the closed air circuit 20 to purify the recirculated air, in particular to remove hydrogen from it. The air circuit 20 is not necessarily to be understood as a closed duct system.The closed air circuit should also be understood to mean that – if the testing and inspection device 10 is located, for example, in a building 200 – the air is supplied to the building via the device 21 and drawn back in from inside the building. The closed air circuit can therefore also be a virtual air circuit. In contrast to the embodiment of the . Fig. 1. In a closed air circuit 20, there are therefore no chimneys 13,15 projecting into the environment. Extraction and intake devices 12 and 14 are "short-circuited" via the interior of the building 200.

[0039] In Fig. Figure 2 does not show building 200, in which the device 10 for testing and inspecting the hydrogen production plant 100 may be located. Also in Fig. However, the device 10 can be arranged in a building 200.

[0040] Also in Fig. 2 For the sake of simplicity, the hydrogen sensor 18 and the control unit 19 are not shown. In the exemplary embodiment of the Fig. However, 2 can be related to Fig. The hydrogen sensor 18 described above and the control unit 19 can be used in an analogous manner.

[0041] The device 10 of the Fig. 2, Fig. 3 has a reconversion device 22 to preferably completely convert the hydrogen produced during the testing and inspection of the hydrogen production plant 10 back into water.

[0042] In the exemplary embodiment of the Fig. 2 The conversion device 22 comprises several catalysts 23 that convert the hydrogen back into water, primarily generating heat in the process. Alternatively or additionally to such catalysts 23, the conversion device 22 can also include at least one fuel cell to convert the hydrogen produced during the testing and inspection of the hydrogen production plant 100 back into water, primarily generating electrical energy in the process.

[0043] In the exemplary embodiment of the Fig. 2 The device 10 has a hydrogen line 24, through which the hydrogen produced during the testing and inspection of the hydrogen production plant 10 can be supplied from the hydrogen production plant 100 to a tank 25.

[0044] Furthermore, it shows Fig. 2 oxygen lines 26, via which the oxygen produced during hydrogen production can be supplied to tank 25 from the hydrogen production plant 100.

[0045] Tank 25 is in Fig. 2. At least one compressed air injector 27 is assigned to introduce ambient air into tank 25 in addition to the hydrogen supplied via hydrogen line 24 and the oxygen supplied via oxygen line 26. This serves to form a defined mixture of oxygen, hydrogen, and air in tank 25, which can be discharged from tank 25 via at least one discharge line 28 and directed towards the conversion device 22.

[0046] This can increase the efficiency of converting hydrogen back into water.

[0047] In the exemplary embodiment of the Fig. 2, Fig. 3 back into tank 25, specifically into a floor area 29 of tank 25 below the compressed air injectors 27, in order to be discharged from there via a water pipe 30 from tank 25. Fig. Figure 3 shows a water collection container 31 for the water discharged from tank 25 via line 30.

[0048] According to Fig. 2, Fig. 3. The hydrogen produced by the hydrogen production plant 10 during testing and inspection is therefore converted back and mixed with oxygen and / or ambient air before the conversion to provide a mixing ratio advantageous for the conversion of the hydrogen.

[0049] The reconversion device 22, in particular the at least one catalyst 23 thereof, can be temperature-controlled by means of a heating device in order to operate it in a temperature range advantageous for the reconversion, in particular in a temperature range between 250 °C and 350 °C.

[0050] How Fig. 2, Fig. 3, the recovery device 22 is arranged within the encapsulated receiving chamber 11. In Fig. 2, Fig. 3. Tank 25 is located outside the encapsulated receiving space 11. However, it is also possible to arrange tank 25 inside the encapsulated receiving space 11.

[0051] The hydrogen produced during the testing and inspection of the hydrogen production plant 100 is preferably present at a pressure between 25 and 30 bar. The oxygen produced during hydrogen production is preferably at atmospheric pressure. Pressure equalization, i.e., expansion of the hydrogen, takes place within tank 25, particularly to a pressure level between 4 and 8 bar. At this pressure, ambient air is introduced via the pressure injectors 27 to ultimately provide a mixture of hydrogen, oxygen, and air in tank 25 that is advantageous for reconversion and to supply it to the reconversion device 22.

[0052] Fig. Figure 4 shows a detail of a device 10 for testing and inspecting a hydrogen production plant 100, specifically in the area of ​​the tank 25 thereof, wherein, in contrast to the exemplary embodiment of the Fig. 2 and Fig. 3. Hydrogen is supplied to tank 25 only from the hydrogen production plant 100, but no oxygen is supplied to mix the hydrogen with ambient air in the area of ​​tank 25, which is introduced into tank 25 via the compressed air injectors 27.

[0053] Fig. Figure 4 illustrates that within a first zone 25a of the tank 25, the hydrogen is initially depressurized, in particular from a pressure between 25 bar and 30 bar to a pressure between 4 bar and 8 bar, preferably to a pressure of 6 bar, wherein subsequently, in a zone 25b of the tank 25, the depressurized hydrogen is mixed with compressed air introduced into the tank 25. A mixture then exists in a zone 25c, which flows towards the catalyst 23 of the Fig. The conversion device 22 shown in section 4 is used.

[0054] Also in Fig.4 The generated water flows back into tank 25 and can be discharged from tank 25 via a drain 30 and fed into the collection tank 31.

[0055] The collection container 31 can have a volume of between 50 and 150 liters for holding water.

[0056] The device 10 allows for the safe and reliable testing and inspection of an industrial hydrogen production plant 10, in order to test or inspect it over a defined testing and inspection period of, for example, between 30 and 120 minutes or 30 and 90 minutes or 30 and 60 minutes, in particular on the manufacturer's side in a factory hall of the manufacturer.

[0057] The heat generated during the catalysis of hydrogen can be coupled into a heat cycle (not shown) via a heat exchanger (not shown) of the device 10, in order to heat, for example, domestic water, a process medium or the like.

[0058] The invention relates to the use of the device 10 for testing and inspecting a hydrogen production plant 100. The hydrogen production plant 100 to be tested or inspected is an industrial hydrogen production plant 100, which is configured to produce more than 100 kg of pure hydrogen per day. In particular, such a hydrogen production plant is supplied with an electrical power of between 0.5 and 5 MW for hydrogen production.

[0059] In the use according to the invention, the device 10 is used for testing and inspecting a hydrogen production plant 100, which is preferably designed as a plug-and-play hydrogen production plant, i.e., it is transported to a customer as a unit and only needs to be connected there to an electrical power grid or an electrical voltage source or electrical current source. Such a plug-and-play hydrogen production plant 100 comprises a container 101, which houses the components of the hydrogen production plant, and optionally also attachments 103 to the container 101. The container 101 is a standard container or ISO container with a length of 6.058 meters (20 feet) or preferably a length of 12.192 meters (40 feet). The width of such a container is 2.4384 meters (8 feet) and its height is 2.591 meters (8.5 feet).

[0060] The invention is particularly useful for testing and inspecting such industrial, transportable hydrogen production plants 100 for early fault detection and correction with minimal effort. Reference symbol list 10 Device 11 Recording Room 12 feed fans 13 Management 14 exhaust fans 15 Management 16 Blow-off line 17 valve 18 hydrogen sensor 19 Control unit 20 Air circulation 21 Cleaning equipment 22 Conversion device 23 Catalyst 24 Hydrogen pipeline 25 Tank 25a Zone 25b Zone 25°C Zone 26 Oxygen line 27 Compressed air injector 28 Drain line 29 Floor area 30 Water pipe 31 water collection containers 100 hydrogen production plants 101 containers 102 Door 103 Extension 200 buildings

Claims

[1] Use of a device (10) for testing and inspecting an industrial hydrogen production plant (100) comprising several electrolysis devices designed to produce hydrogen from water using electric current, wherein the device (10) has a water circuit for supplying the electrolysis devices with water, and wherein the device (10) has electrical connections for connecting the hydrogen production plant (100) to an electrical current source or electrical voltage source or an electrical power grid which supplies the electrolysis devices of the hydrogen production plant (100) with electrical power for the production of hydrogen, wherein the device (10) has an encapsulated receiving space (11) which is configured to receive the hydrogen production plant (100) to be inspected or tested, wherein the components of the hydrogen production plant (100) are arranged in a container (101), wherein the encapsulated receiving space (11) of the device (10) is designed to receive the container (101). [2] Use according to claim 1, characterized by that the device (10) has a supply blower (12) or an intake device which is configured to supply air to the receiving chamber (11) from the outside. [3] Use according to claim 1 or 2, characterized by that the device (10) has a discharge blower (14) or an extraction device which is designed to discharge air from the receiving chamber (11) to the outside. [4] Use according to claim 2 or 3, characterized by , that the supply blower (12) or the intake device and / or the discharge blower (14) or the extraction device are integrated into a fully or partially closed air circuit (20). [5] Use according to any one of claims 2 to 4, characterized by , that the encapsulated receiving chamber (11) is assigned at least one hydrogen sensor (18) which is configured to measure the hydrogen concentration in the receiving chamber (11), wherein a control unit (19) is configured to operate the supply blower (12) or the intake device and / or exhaust blower (15) or the extraction device depending on the measured hydrogen concentration. [6] Use according to any one of claims 1 to 5, characterized by , that the device (10) includes a reconversion device (22) for reconverting the hydrogen produced during the inspection and testing of the hydrogen production plant (100) into water. [7] Use according to claim 6, characterized by that the reconversion device (22) has at least one catalyst (23) and / or at least one fuel cell. [8] Use according to claim 6 or 7, characterized by the device (10) has at least one hydrogen line (24) to supply the hydrogen produced during the testing and inspection of the hydrogen production plant (100) from the hydrogen production plant (100) to a tank (25), the device (10) has at least one compressed air injector (27) to supply air to the tank (25), the device (10) has at least one discharge line (28) to discharge a mixture of hydrogen and air from the tank (25) and supply it to the reconversion device (22). [9] Use according to claim 8, characterized by , that the device (10) has at least one oxygen line (26) to supply oxygen produced during the inspection and testing of the hydrogen production plant (100) to the tank (25). [10] Use according to claim 8 or 9, characterized by , that the tank (25) is arranged outside the encapsulated receiving space (11). [11] Use according to any one of claims 6 to 10, characterized by that the conversion device (22) is arranged within the encapsulated receiving space (11). [12] Use according to any one of claims 6 to 11, characterized by , that a water collection container (31) is associated with the conversion device (22) and / or the tank (25). [13] Use according to any one of claims 1 to 12 for testing and checking a plug-and-play hydrogen production plant (100). [14] Use according to any one of claims 1 to 13, , characterized by , that the container (102) is an ISO container with a width of 2.4384 meters, a height of 2.591 meters and a length of 6.058 meters or 12.192 meters.

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