Hydrogenation machine and hydrogenation system

Abstract

The utility model provides a hydrogenation machine and a hydrogenation system, the hydrogenation machine comprises a hydrogenation pipe group and a hydrogenation gun, the hydrogenation pipe group conveys hydrogen to the hydrogenation gun, and the hydrogenation gun is used for conveying the hydrogen to a vehicle; wherein the hydrogenation pipe group comprises a plurality of adjusting pipelines which are connected in parallel, each adjusting pipeline can be independently connected and disconnected, the flow of the adjusting pipelines is adjustable, and hydrogen in the adjusting pipelines is conveyed to the hydrogenation gun. By adopting the scheme, the hydrogenation pipe group comprises the plurality of adjusting pipelines connected in parallel, and the plurality of adjusting pipelines can convey hydrogen together, so that the flow capable of being conveyed by the hydrogenation pipe group is increased, and the problem that the hydrogenation flow is small due to valve performance limitation is solved; moreover, each adjusting pipeline can be independently switched on and off, so that the flow of the hydrogenation pipeline can be adjusted by opening and closing the adjusting pipelines, the flow of hydrogen output to the hydrogenation gun by the hydrogenation pipeline can meet the hydrogenation requirement of a vehicle, large-flow hydrogenation is realized, the hydrogenation efficiency is improved, and the waiting time of the vehicle is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogenation machines, and in particular to a hydrogenation machine and a hydrogenation system. Background Art

[0002] The hydrogen refueling machine in the prior art has a small flow rate when refueling vehicles with hydrogen due to valve performance limitations and other reasons, resulting in a long refueling time, a long waiting time for vehicles, and low refueling efficiency. Therefore, a hydrogen refueling machine that can achieve high-flow hydrogen refueling is needed. Utility Model Content

[0003] The utility model provides a hydrogenation machine and a hydrogenation system to solve the problem of small hydrogenation flow rate of the hydrogenation machine in the prior art.

[0004] In order to solve the above problems, according to one aspect of the utility model, the utility model provides a hydrogen filling machine, including a hydrogen filling pipe group and a hydrogen filling gun, the hydrogen filling pipe group transports hydrogen to the hydrogen filling gun, and the hydrogen filling gun is used to transport hydrogen to a vehicle; wherein the hydrogen filling pipe group includes a plurality of parallel regulating pipelines, each regulating pipeline can be opened and closed individually, and the flow of the regulating pipeline is adjustable, and the hydrogen in the regulating pipeline is transported to the hydrogen filling gun.

[0005] Furthermore, the regulating pipeline includes a delivery pipe, a hydrogen filter, a solenoid valve and a flow regulating valve. The hydrogen filter is used to filter the hydrogen entering the delivery pipe, the solenoid valve is used to control the on-off of the delivery pipe, and the flow regulating valve is used to regulate the hydrogen flow in the delivery pipe.

[0006] Furthermore, the hydrogenation pipe group also includes an input pipe, a first pressure transmitter and a first temperature transmitter. The input pipe is connected to the inlet of the regulating pipeline. The input pipe is used to transport hydrogen to the regulating pipeline. The first pressure transmitter and the first temperature transmitter are arranged on the input pipe. The first temperature transmitter is used to detect the temperature change in the input pipe. The first pressure transmitter is used to detect the pressure change in the input pipe.

[0007] Furthermore, the hydrogenation pipe group also includes an output pipe, a second pressure transmitter and a second temperature transmitter. The output pipe is connected to the outlet of the regulating pipeline. The output pipe is used to transport hydrogen to the hydrogenation gun. The second pressure transmitter and the second temperature transmitter are arranged on the output pipe. The second temperature transmitter is used to detect the temperature change in the output pipe. The second pressure transmitter is used to detect the pressure change in the output pipe.

[0008] Furthermore, the hydrogenation pipe group also includes an output pipe, a hydrogen flowmeter and a breakaway valve. The output pipe is connected to the outlet of the regulating pipeline, the hydrogen flowmeter is arranged on the output pipe, and the breakaway valve is arranged between the output pipe and the hydrogenation gun. The breakaway valve is used to close the output pipe to avoid hydrogen leakage when the hydrogenation gun falls off or leaks.

[0009] Furthermore, the hydrogenator also includes a vent main pipe and multiple vent pipes, the inlet of the vent pipe is connected to a regulating pipeline, the outlet of the vent pipe is connected to the vent main pipe, the vent pipe is provided with a safety valve, when the pressure in the regulating pipeline reaches a set value, the safety valve opens, and the vent pipe discharges hydrogen to the vent main pipe.

[0010] Furthermore, the hydrogenator also includes a nitrogen purge pipeline, which is connected to the inlet of the hydrogenation tube group. The nitrogen purge pipeline transports nitrogen into the hydrogenation tube group to discharge residual gas in the hydrogenation tube group.

[0011] Furthermore, the hydrogenator also includes a sampling pipeline, the inlet of which is connected to the hydrogenation tube group, and the sampling pipeline is used to sample and detect the gas in the hydrogenation tube group to determine whether the residual gas in the hydrogenation tube group is discharged.

[0012] Furthermore, there are multiple hydrogenation tube groups and multiple hydrogenation guns, and each hydrogenation tube group is connected to a corresponding hydrogenation gun.

[0013] According to another aspect of the utility model, a hydrogenation system is provided, including a gas unloading column, a compressor, a sequence control panel, a hydrogen storage bottle group and the above-mentioned hydrogenation machine, the outlet of the gas unloading column is connected to the inlet of the compressor, the outlet of the compressor is connected to the sequence control panel, the sequence control panel is connected to the hydrogen storage bottle group, and the sequence control panel is connected to the hydrogenation machine.

[0014] The technical solution of the utility model is applied to provide a hydrogenation machine, including a hydrogenation pipe group and a hydrogenation gun. The hydrogenation pipe group transports hydrogen to the hydrogenation gun, and the hydrogenation gun is used to transport hydrogen to the vehicle; wherein the hydrogenation pipe group includes a plurality of parallel regulating pipelines, each regulating pipeline can be opened and closed individually, and the flow of the regulating pipeline is adjustable, and the hydrogen in the regulating pipeline is transported to the hydrogenation gun. With this solution, the hydrogenation pipe group includes a plurality of parallel regulating pipelines, and the plurality of regulating pipelines can jointly transport hydrogen, so that the flow rate that the hydrogenation pipe group can transmit becomes larger, solving the problem of small hydrogenation flow rate limited by valve performance; and each regulating pipeline can be opened and closed individually, so that the flow rate of the hydrogenation pipe can be adjusted by opening and closing the regulating pipeline, so that the hydrogen flow rate output from the hydrogenation pipe to the hydrogenation gun can meet the needs of vehicle hydrogenation, realizing large-flow hydrogenation, improving hydrogenation efficiency, and reducing vehicle waiting time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 The structure diagram of the hydrogenation machine provided in the first embodiment of the utility model is shown;

[0017] Figure 2 The structure diagram of the hydrogenation machine provided in the second embodiment of the present utility model is shown;

[0018] Figure 3 The schematic diagram of the structure of the hydrogenation system provided in the third embodiment of the present utility model is shown.

[0019] The above drawings include the following reference numerals:

[0020] 10. Regulating pipeline; 11. Delivery pipe; 12. Hydrogen filter; 13. Solenoid valve; 14. Flow regulating valve;

[0021] 21. Hydrogenation gun; 22. Input pipe; 23. Output pipe; 24. Hydrogen flow meter; 25. Breakaway valve;

[0022] 31. First pressure transmitter; 32. First temperature transmitter; 33. Second pressure transmitter; 34. Second temperature transmitter;

[0023] 40. Release main pipe; 41. Release pipe; 42. Safety valve;

[0024] 50. Nitrogen purge pipeline;

[0025] 60. Sampling pipeline;

[0026] 71. Gas unloading column; 72. Compressor; 73. Sequential control panel; 74. Hydrogen storage bottle group. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] like Figure 1 to Figure 2 As shown, an embodiment of the utility model provides a hydrogen filling machine, including a hydrogen filling pipe group and a hydrogen filling gun 21, the hydrogen filling pipe group transports hydrogen to the hydrogen filling gun 21, and the hydrogen filling gun 21 is used to transport hydrogen to a vehicle; wherein the hydrogen filling pipe group includes a plurality of parallel regulating pipelines 10, each regulating pipeline 10 can be opened and closed individually, and the flow of the regulating pipeline 10 is adjustable, and the hydrogen in the regulating pipeline 10 is transported to the hydrogen filling gun 21.

[0029] With this solution, the hydrogenation pipe group includes a plurality of parallel regulating pipes 10, and the plurality of regulating pipes 10 can jointly transport hydrogen, so that the flow rate that the hydrogenation pipe group can transmit becomes larger, solving the problem of small hydrogenation flow rate limited by valve performance; and each regulating pipe 10 can be opened and closed separately, so that the flow rate of the hydrogenation pipe can be adjusted by opening and closing the regulating pipe 10, so that the hydrogen flow rate output from the hydrogenation pipe to the hydrogenation gun 21 can meet the needs of vehicle hydrogenation, realize large-flow hydrogenation, improve hydrogenation efficiency, and reduce vehicle waiting time. The plurality of the utility model is two or more.

[0030] like Figure 1 As shown, the regulating pipeline 10 includes a delivery pipe 11, a hydrogen filter 12, a solenoid valve 13 and a flow regulating valve 14. The hydrogen filter 12 is used to filter the hydrogen entering the delivery pipe 11, the solenoid valve 13 is used to control the on-off of the delivery pipe 11, and the flow regulating valve 14 is used to regulate the hydrogen flow in the delivery pipe 11.

[0031] In this arrangement, the delivery pipe 11 is used to deliver oxygen; the hydrogen filter 12 is used to filter the hydrogen flowing through the delivery pipe 11; the solenoid valve 13 is used to control the on-off of the delivery pipe 11; the flow regulating valve 14 is used to adjust the flow of hydrogen flowing through the delivery pipe 11, so that the flow of the hydrogenation pipe group can be adjusted by adjusting the on-off or flow of the regulating pipeline.

[0032] like Figure 2 As shown, the hydrogenation pipe group also includes an input pipe 22, a first pressure transmitter 31 and a first temperature transmitter 32. The input pipe 22 is connected to the inlet of the regulating pipeline 10. The input pipe 22 is used to transport hydrogen to the regulating pipeline 10. The first pressure transmitter 31 and the first temperature transmitter 32 are arranged on the input pipe 22. The first temperature transmitter 32 is used to detect the temperature change in the input pipe 22. The first pressure transmitter 31 is used to detect the pressure change in the input pipe 22.

[0033] In this configuration, the input pipe 22 transports hydrogen to the delivery pipe 11, the first pressure transmitter 31 is used to detect the pressure in the input pipe 22, and the first temperature transmitter 32 is used to detect the temperature in the input pipe 22. When the first pressure transmitter 31 and the first temperature transmitter 32 detect that the pressure or temperature in the input pipe 22 exceeds the set value, the emergency interlock cut-off function is triggered to urgently cut off the hydrogenation pipe group to avoid danger.

[0034] like Figure 2As shown, the hydrogenation pipe group also includes an output pipe 23, a second pressure transmitter 33 and a second temperature transmitter 34. The output pipe 23 is connected to the outlet of the regulating pipeline 10. The output pipe 23 is used to transport hydrogen to the hydrogenation gun 21. The second pressure transmitter 33 and the second temperature transmitter 34 are arranged on the output pipe 23. The second temperature transmitter 34 is used to detect the temperature change in the output pipe 23. The second pressure transmitter 33 is used to detect the pressure change in the output pipe 23.

[0035] In this configuration, the output pipe 23 is connected to the outlet of the regulating pipeline 10, and the output pipe 23 is used to transport hydrogen to the hydrogenation gun 21, so that the hydrogen is transported to the vehicle through the hydrogenation gun 21. The second pressure transmitter 33 detects the pressure in the output pipe 23, and the second temperature transmitter 34 detects the temperature of the output pipe 23. When the second pressure transmitter 33 and the second temperature transmitter 34 detect that the pressure or temperature in the output pipe 23 exceeds the set value, the emergency interlock cut-off function is triggered, and the hydrogenation pipe group is urgently cut off to avoid danger.

[0036] like Figure 1 As shown, the hydrogenation pipe group also includes an output pipe 23, a hydrogen flowmeter 24 and a break valve 25. The output pipe 23 is connected to the outlet of the regulating pipeline 10, the hydrogen flowmeter 24 is arranged on the output pipe 23, and the break valve 25 is arranged between the output pipe 23 and the hydrogenation gun 21. The break valve 25 is used to close the output pipe 23 to avoid hydrogen leakage when the hydrogenation gun 21 falls off or leaks.

[0037] In this way, the hydrogen flow meter 24 measures the hydrogen flow delivered to the hydrogenation gun 21 through the output pipe 23, so that the hydrogen flow output by the hydrogenation machine can be monitored in real time, which is beneficial to the use of the hydrogenation machine. The break valve 25 is arranged between the output pipe 23 and the hydrogenation gun 21. When the hydrogenation gun 21 and the output pipe 23 are broken, the break valve 25 closes the output pipe 23 to prevent hydrogen leakage.

[0038] like Figure 1 As shown, the hydrogenator also includes a vent main pipe 40 and multiple vent pipes 41. The inlet of the vent pipe 41 is connected to a regulating pipeline 10, and the outlet of the vent pipe 41 is connected to the vent main pipe 40. The vent pipe 41 is provided with a safety valve 42. When the pressure in the regulating pipeline 10 reaches a set value, the safety valve 42 opens, and the vent pipe 41 discharges hydrogen to the vent main pipe 40.

[0039] In this arrangement, the inlet of the vent pipe 41 is connected to a regulating pipeline 10. When the pressure in the regulating pipeline 10 reaches a set value, the safety valve 42 opens, allowing the hydrogen in the regulating pipeline 10 to enter the vent pipe 41, and the hydrogen in the vent pipe 41 is uniformly entered into the vent main pipe 40 for treatment.

[0040] like Figure 1As shown, the hydrogenator further includes a nitrogen purge pipeline 50, which is connected to the inlet of the hydrogenation tube group. The nitrogen purge pipeline 50 transports nitrogen into the hydrogenation tube group to discharge the residual gas in the hydrogenation tube group.

[0041] In this arrangement, the nitrogen purge pipeline 50 is connected to the inlet of the hydrogenation pipe group. The nitrogen purge pipeline 50 has a valve. When nitrogen purge is performed, the valve is opened to allow nitrogen to be blown into the hydrogenation pipe group to discharge the participating gas in the hydrogenation pipe group, thereby preventing the participating gas from making the hydrogen impure and causing harm.

[0042] like Figure 1 As shown, the hydrogenator further includes a sampling pipeline 60, the inlet of which is connected to the hydrogenation tube group. The sampling pipeline 60 is used to sample and detect the gas in the hydrogenation tube group to determine whether the residual gas in the hydrogenation tube group is discharged.

[0043] In this way, the inlet of the sampling pipeline 60 is connected to the hydrogenation tube group. After nitrogen purge, the sampling pipeline 60 samples and detects the hydrogen in the hydrogenation tube group. If the sampled gas meets the requirements, the hydrogenation tube group can be used. The sampling and detection standard is that the oxygen content in the gas is less than 0.5%.

[0044] In the first embodiment of the present invention, a single-gun hydrogenator is used for hydrogenation. The hydrogenator is purged and replaced with nitrogen and the filling is started after the sampling is qualified. The hydrogenator of this embodiment has three regulating pipelines 10. The regulating pipeline 10 is divided into a main pipeline and a branch pipeline. The inner diameter of the main pipeline is larger than the inner diameter of the branch pipeline. First, the valves of the two branch pipelines are opened to start hydrogenation. When the hydrogenation flow rate reaches the flow setting value, the main pipeline is opened until the hydrogenation flow rate rises to 12 kg / min.

[0045] 1) As the pressure of the onboard bottle increases and the hydrogenation flow rate drops to the first system setting value, the main pipeline is closed and the two branch pipelines remain open;

[0046] 2) When the flow rate drops to the second system setting value, one branch pipeline is closed and one branch pipeline is kept open, and automatic adjustment is performed according to the flow demand;

[0047] 3) By comparing the hydrogenation set value, when the cumulative flow reaches the set value, close all pipeline valves.

[0048] By refueling through the above-mentioned flow control, the refueling efficiency can be significantly improved, breaking the problem of low refueling time efficiency of traditional hydrogen refueling machines and long waiting time for heavy trucks with on-board hydrogen storage, maintaining the efficient operation of the hydrogen refueling system and reducing the operating costs of the entire station.

[0049] like Figure 2As shown, in the second embodiment of the present invention, there are two hydrogenation guns 21 and two hydrogenation tube groups, each hydrogenation tube group corresponds to one hydrogenation gun 21, so that the two hydrogenation guns 21 can hydrogenate two vehicles at the same time, thereby improving the efficiency of hydrogenation.

[0050] like Figure 3 As shown, according to another aspect of the utility model, a hydrogenation system is provided, including a gas unloading column 71, a compressor 72, a sequence control disk 73, a hydrogen storage bottle group 74 and the above-mentioned hydrogenation machine, the outlet of the gas unloading column 71 is connected to the inlet of the compressor 72, the outlet of the compressor 72 is connected to the sequence control disk 73, the sequence control disk 73 is connected to the hydrogen storage bottle group 74, and the sequence control disk 73 is connected to the hydrogenation machine.

[0051] The gas unloading column 71 is used to transport the hydrogen in the long tube trailer to the compressor 72, the compressor 72 is used to compress the hydrogen, and the sequence control panel 73 is used to transport the hydrogen output by the compressor 72 to the hydrogen storage bottle group 74 or to transport the hydrogen in the hydrogen storage bottle group 74 to the hydrogen filling machine.

[0052] The hydrogen transported by the long tube trailer is delivered to the compressor 72 through the gas unloading column 71. The compressor 72 compresses the hydrogen so that the hydrogen input into the hydrogen storage bottle group 74 has a certain pressure. The hydrogen storage bottle group 74 stores the hydrogen. When the pressure of the hydrogen storage bottle group 74 drops to a certain value, the sequence control disk 73 replenishes the hydrogen storage bottle group 74 with gas. When the hydrogen filling machine is working, the sequence control disk 73 supplies gas to the hydrogen filling machine.

[0053] In a specific embodiment of the present invention, a precooling system is provided before the hydrogenator, and the precooling system is used to cool the hydrogen entering the hydrogenator.

[0054] By using the above-mentioned solution for hydrogen refueling, the refueling efficiency can be significantly improved, breaking the problems of low refueling time of traditional hydrogen refueling machines and long waiting time for heavy trucks with on-board hydrogen storage, maintaining the efficient operation of the hydrogen refueling system and reducing the operating costs of the entire station.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0056] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0057] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0058] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0059] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0060] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

Claims

1. A hydrogenation machine, characterized in that: It comprises a hydrogenation pipe group and a hydrogenation gun (21), wherein the hydrogenation pipe group transports hydrogen to the hydrogenation gun (21), and the hydrogenation gun (21) is used to transport hydrogen to a vehicle; wherein, The hydrogenation pipe group comprises a plurality of parallel regulating pipes (10), each regulating pipe (10) can be switched on and off individually, and the flow rate of the regulating pipe (10) is adjustable, and the hydrogen in the regulating pipe (10) is transported to the hydrogenation gun (21); The regulating pipeline (10) comprises a delivery pipe (11), a solenoid valve (13) and a flow regulating valve (14); the solenoid valve (13) and the flow regulating valve (14) are both arranged on the delivery pipe (11); the solenoid valve (13) is used to control the on-off of the delivery pipe (11); and the flow regulating valve (14) is used to regulate the flow of hydrogen in the delivery pipe (11).

2. The hydrogenation machine according to claim 1, characterized in that: The regulating pipeline (10) comprises a hydrogen filter (12), wherein the hydrogen filter (12) is arranged on the delivery pipe (11), and the hydrogen filter (12) is used to filter the hydrogen entering the delivery pipe (11).

3. The hydrogenation machine according to claim 1, characterized in that: The hydrogenation pipe group further comprises an input pipe (22), a first pressure transmitter (31) and a first temperature transmitter (32); the input pipe (22) is connected to the inlet of the regulating pipeline (10); the input pipe (22) is used to transport hydrogen to the regulating pipeline (10); the first pressure transmitter (31) and the first temperature transmitter (32) are arranged on the input pipe (22); the first temperature transmitter (32) is used to detect the temperature change in the input pipe (22); and the first pressure transmitter (31) is used to detect the pressure change in the input pipe (22).

4. The hydrogenation machine according to claim 1, characterized in that: The hydrogenation pipe group further comprises an output pipe (23), a second pressure transmitter (33) and a second temperature transmitter (34); the output pipe (23) is connected to the outlet of the regulating pipeline (10); the output pipe (23) is used to transport hydrogen to the hydrogenation gun (21); the second pressure transmitter (33) and the second temperature transmitter (34) are arranged on the output pipe (23); the second temperature transmitter (34) is used to detect the temperature change in the output pipe (23); and the second pressure transmitter (33) is used to detect the pressure change in the output pipe (23).

5. The hydrogenation machine according to claim 1, characterized in that: The hydrogenation pipe group further comprises an output pipe (23), a hydrogen flow meter (24) and a break valve (25); the output pipe (23) is connected to the outlet of the regulating pipeline (10); the hydrogen flow meter (24) is arranged on the output pipe (23); the break valve (25) is arranged between the output pipe (23) and the hydrogenation gun (21); the break valve (25) is used to close the output pipe (23) to prevent hydrogen leakage when the hydrogenation gun (21) falls off or leaks.

6. The hydrogenation machine according to claim 1, characterized in that: The hydrogenator further comprises a vent main pipe (40) and a plurality of vent pipes (41), wherein the inlet of the vent pipe (41) is connected to one of the regulating pipelines (10), and the outlet of the vent pipe (41) is connected to the vent main pipe (40), and the vent pipe (41) is provided with a safety valve (42). When the pressure in the regulating pipeline (10) reaches a set value, the safety valve (42) opens, and the vent pipe (41) discharges hydrogen to the vent main pipe (40).

7. The hydrogenation machine according to claim 1, characterized in that: The hydrogenator further comprises a nitrogen purge pipeline (50), wherein the nitrogen purge pipeline (50) is connected to the inlet of the hydrogenation tube group, and the nitrogen purge pipeline (50) transports nitrogen into the hydrogenation tube group to discharge residual gas in the hydrogenation tube group.

8. The hydrogenation machine according to claim 7, characterized in that: The hydrogenator further comprises a sampling pipeline (60), the inlet of which is connected to the hydrogenation tube group, and the sampling pipeline (60) is used to sample and detect the gas in the hydrogenation tube group to determine whether the residual gas in the hydrogenation tube group is discharged.

9. The hydrogenation machine according to claim 1, characterized in that: There are a plurality of hydrogenation tube groups, a plurality of hydrogenation guns (21), and each hydrogenation tube group is connected to a corresponding hydrogenation gun (21).

10. A hydrogenation system, characterized in that: It comprises a gas unloading column (71), a compressor (72), a sequence control disk (73), a hydrogen storage bottle group (74) and the hydrogen filling machine according to any one of claims 1 to 9, wherein the outlet of the gas unloading column (71) is connected to the inlet of the compressor (72), the outlet of the compressor (72) is connected to the sequence control disk (73), the sequence control disk (73) is connected to the hydrogen storage bottle group (74), and the sequence control disk (73) is connected to the hydrogen filling machine.

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