CN220397260U - Hydrogen production hydrogenation device and system - Google Patents

Abstract

The application discloses hydrogen production hydrogenation device and system, wherein the hydrogen production hydrogenation device comprises hydrogen production equipment, hydrogen storage equipment, a hydrogenation gun and a compressor, wherein the hydrogen production equipment is used for generating hydrogen with first pressure, the compressor is connected with the hydrogen production equipment, the hydrogen storage equipment and the hydrogenation gun and can be switched between a hydrogen storage state and a hydrogenation state, and in the hydrogen storage state, the compressor is used for pressurizing the hydrogen with the first pressure from the hydrogen production equipment to second pressure and storing the hydrogen in the hydrogen storage equipment; in the hydrogenation state, the compressor pressurizes the hydrogen gas at the second pressure from the hydrogen storage device to a third pressure and delivers the hydrogen gas to the hydrogenation gun; wherein the third pressure is greater than the second pressure, and the second pressure is greater than the first pressure. The embodiment of the application can effectively solve the problem of higher hydrogen transportation cost in the related technology, avoid the potential safety hazard caused by long-distance transportation of hydrogen, and can also effectively reduce the arrangement cost of compression equipment.

Description

Hydrogen production hydrogenation device and system

Technical Field

The application belongs to the technical field of fuel cells, and particularly relates to a hydrogen production hydrogenation device and system.

Background

With the development of hydrogen energy technology, the convenience of hydrogenation of devices such as vehicles, which employ fuel cells, has been attracting attention. The existing fuel cell hydrogen adding station is generally an external hydrogen supplying hydrogen adding station, a hydrogen source is generally required to be transported to the hydrogen adding station from a production site through a high-pressure gas state, the hydrogen transportation cost is high, and certain traffic safety hazards exist in long-distance transportation.

Disclosure of Invention

The application aims to provide a hydrogen production hydrogenation device and a hydrogen production hydrogenation system, which at least solve the problems that the hydrogen transportation cost is higher and certain traffic safety hidden trouble exists in long-distance transportation in the related technology.

In order to solve the technical problems, the application is realized as follows:

in a first aspect, an embodiment of the present application provides a hydrogen production hydrogenation apparatus, including:

a hydrogen production plant for producing hydrogen at a first pressure;

a hydrogen storage device;

a hydrogenation gun;

the compressor is connected with the hydrogen production equipment, the hydrogen storage equipment and the hydrogenation gun, and can be switched between a hydrogen storage state and a hydrogenation state, and in the hydrogen storage state, the compressor pressurizes hydrogen from a first pressure of the hydrogen storage equipment to a second pressure and stores the hydrogen in the hydrogen storage equipment; in the hydrogenation state, the compressor pressurizes the hydrogen gas at the second pressure from the hydrogen storage device to a third pressure and delivers the hydrogen gas to the hydrogenation gun; wherein the third pressure is greater than the second pressure, and the second pressure is greater than the first pressure.

In a second aspect, embodiments of the present application further provide a hydrogen production hydrogenation system, including:

a vehicle operating in a work site; the method comprises the steps of,

the hydrogen production hydrogenation device as shown in the first aspect is arranged in a working site, and is used for hydrogenating a vehicle.

The hydrogen production hydrogenation device comprises hydrogen production equipment, hydrogen storage equipment, a hydrogenation gun and a compressor, wherein the hydrogen production equipment is used for producing hydrogen with first pressure, the compressor is connected with the hydrogen production equipment, the hydrogen storage equipment and the hydrogenation gun, the compressor can be switched between a hydrogen storage state and a hydrogenation state, and in the hydrogen storage state, the compressor is used for pressurizing the hydrogen with the first pressure from the hydrogen production equipment to second pressure and storing the hydrogen in the hydrogen storage equipment; in the hydrogenation state, the compressor pressurizes the hydrogen gas at the second pressure from the hydrogen storage device to a third pressure and delivers the hydrogen gas to the hydrogenation gun; wherein the third pressure is greater than the second pressure, and the second pressure is greater than the first pressure. According to the hydrogen storage device, through the integrated design of hydrogen production and hydrogenation, the problem that the hydrogen transportation cost is high in the related art can be effectively solved, the potential safety hazard caused by long-distance transportation of hydrogen is avoided, in addition, the compressor in the embodiment of the application is switched between the hydrogen storage state and the hydrogenation state, gradual pressurization of the hydrogen is achieved, the arrangement cost of the compression device can be effectively reduced, the hydrogen is pressurized to the second pressure in the hydrogen storage state and stored in the hydrogen storage device, on one hand, the efficiency of subsequent hydrogen filling can be guaranteed, on the other hand, the cost of the hydrogen storage device can be reduced, and the potential safety hazard of the hydrogen storage device is reduced.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is one of the schematic structural diagrams of a hydrogen production hydrogenation apparatus provided in an embodiment of the present application;

FIG. 2 is a second schematic structural view of a hydrogen production hydrogenation apparatus according to an embodiment of the present disclosure;

FIG. 3 is a third schematic structural view of a hydrogen production hydrogenation apparatus according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a hydrogen production hydrogenation apparatus according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a hydrogen production hydrogenation apparatus according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of a hydrogen production hydrogenation apparatus according to an embodiment of the present disclosure.

Reference numerals: 110-hydrogen plant, 120-hydrogen storage plant, 121-pressure sensor, 130-hydrogenation gun, 140-compressor, 150-oxygen storage plant, 161-first conduit, 162-second conduit, 163-third conduit, 164-fourth conduit, 171-first valve, 172-second valve, 173-third valve, 174-fourth valve, 175-fifth valve, 176-sixth valve, 180-cooler, 190-controller, 200-vehicle.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the like or similar elements throughout or elements having the same or similar functions. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The features of the terms "first", "second", and the like in the description and in the claims of this application may be used for descriptive or implicit inclusion of one or more such features. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

As shown in fig. 1, a hydrogen production hydrogenation apparatus according to some embodiments of the present application includes:

hydrogen plant 110 for producing hydrogen at a first pressure;

a hydrogen storage device 120;

a hydrogenation gun 130;

the compressor 140, the compressor 140 is connected to the hydrogen production device 110, the hydrogen storage device 120 and the hydrogenation gun 130, the compressor 140 is capable of switching between a hydrogen storage state in which the compressor 140 pressurizes hydrogen from a first pressure of the hydrogen production device 110 to a second pressure and stores the hydrogen in the hydrogen storage device 120; in the hydrogenated state, the compressor 140 pressurizes the hydrogen gas at the second pressure from the hydrogen storage device 120 to a third pressure and sends the hydrogen gas to the hydrogenation gun 130; wherein the third pressure is greater than the second pressure, and the second pressure is greater than the first pressure.

In this embodiment, the hydrogen production apparatus 110 may be a hydrogen production apparatus in the form of electrolytic hydrogen production, fossil fuel hydrogen production, biological hydrogen production, or the like, and for simplicity of description, the hydrogen production apparatus 110 will be mainly described as an electrolytic hydrogen production apparatus.

Unlike the hydrogen in the existing hydrogen addition station that originates from other production sites, in the embodiments of the present application, hydrogen can be locally generated by the hydrogen production device 110, so as to avoid the higher cost and safety problems caused by long-distance transportation of hydrogen.

The hydrogen storage device 120 included in the hydrogen-producing hydrogenation apparatus may be a pressure vessel for storing hydrogen, such as a hydrogen storage tank or other shaped hydrogen storage vessel.

For example, the hydrogen storage device 120 may include a plurality of hydrogen storage tanks, where the hydrogen storage tanks may be set in groups, each group of hydrogen storage tanks may further include a plurality of hydrogen tanks connected in parallel, and the same group of hydrogen storage tanks may share a pipeline and a valve group, so that the hydrogen storage capacity of the hydrogen storage device 120 may be effectively improved, and the setting cost of pipeline elements such as the valve group is reduced.

In connection with one example, each set of hydrogen storage tanks above may be referred to as a set of cells, a set of cells may include 16 hydrogen storage tanks having a volume of 50L, and hydrogen storage device 120 may include at least two sets of cells in the form of more than two sets. Of course, the specification of the hydrogen storage device 120 is an exemplary illustration, and in practical applications, the number of the hydrogen storage cells in the hydrogen storage device 120 and the number and volume of the hydrogen storage tanks used in each cell may be adjusted as needed, and are not particularly limited herein.

The hydrogenation gun 130 is used to charge hydrogen gas into a hydrogen device of the type of the vehicle 200 or the like, and the hydrogenation gun 130 may be of an existing construction and will not be described in detail herein.

The compressor 140 may be used to boost hydrogen, and the compressor 140 may be a reciprocating compressor 140, such as a liquid-driven compressor, etc., to cope with a potentially more frequent start-stop condition. Alternatively, the compressor 140 may be a diaphragm compressor 140 or the like.

The compressor 140 is connected to the hydrogen plant 110, the hydrogen storage plant 120, and the hydrogenation gun 130, and the compressor 140 may be switched between a hydrogen storage state and a hydrogenation state.

In the hydrogen storage state, compressor 140 may boost the hydrogen gas at the first pressure generated by hydrogen plant 110 to a second pressure and store in hydrogen storage plant 120. Taking the example of electrolytic hydrogen production by the hydrogen production device 110, the first pressure of the hydrogen produced by the hydrogen production device 110 is usually 1.5-2.5 MPa, and the hydrogenation requirement pressure of the hydrogen production device for the vehicle 200 and the like is usually 35MPa or 70MPa, if the hydrogen with the first pressure is directly stored, a multi-stage compression device may need to be arranged in the hydrogenation process to meet the requirement of the hydrogenation pressure, so that the configuration cost of the compression device is higher.

In this embodiment, the hydrogen generated by hydrogen generating apparatus 110 may be pressurized by compressor 140 and stored in hydrogen storage apparatus 120. In some examples, the second pressure may be selected to be between 5MPa and 20MPa. When the hydrogen-using device has a hydrogen-adding requirement, the hydrogen-producing hydrogenation device may use the compressor 140 to further boost the pressure of the hydrogen gas with relatively high pressure in the hydrogen storage device 120, so as to meet the hydrogen filling pressure requirement of 35MPa or 70 MPa.

Specifically, in embodiments of the present application, the compressor 140 may operate in a hydrogenated state in which the compressor 140 may further pressurize the hydrogen in the hydrogen storage device 120 and deliver the hydrogen to the hydrogenation gun 130 such that the hydrogenation gun 130 is capable of filling the hydrogen storage device with hydrogen.

In one example, in the hydrogenated state of the compressor 140, the hydrogen gas may be pressurized to a third pressure, for example, 35MPa, that is substantially capable of meeting the hydrogen filling pressure requirements of the hydrogen-using apparatus. Of course, in practical applications, the third pressure may also be set as required.

Based on the above description, in the embodiment of the present application, the compressor 140 is switched between the hydrogen storage state and the hydrogenation state, and can gradually boost hydrogen in different stages, that is, boost the hydrogen pressure from the first pressure to the second pressure in the hydrogen storage state, boost the hydrogen pressure from the second pressure to the third pressure in the hydrogenation state, so that the requirement on the boosting ratio performance of the compressor 140 can be effectively reduced, and the boosting rate of the compressor 140 in each state is facilitated to be improved.

Compared with the prior art, the multi-stage supercharging is performed by adopting a plurality of compression devices, so that the hydrogen pressure generated by the hydrogen production device 110 is boosted to the realization structure of the hydrogen filling demand pressure.

In addition, in the embodiment of the present application, the pressure of the hydrogen stored in the hydrogen storage device 120 is a second pressure, where the second pressure is greater than the first pressure and less than the third pressure, so that on one hand, the requirement on the pressurization ratio of the compressor 140 in the hydrogenation stage can be reduced, and the hydrogen filling efficiency is improved; on the other hand, the pressure level requirement of the hydrogen storage device 120 can be relatively reduced, the cost of the hydrogen storage device 120 is reduced, and the potential safety hazard of the hydrogen storage device 120 is reduced.

The hydrogen production hydrogenation device provided by the embodiment of the application comprises a hydrogen production device 110, a hydrogen storage device 120, a hydrogenation gun 130 and a compressor 140, wherein the hydrogen production device 110 is used for generating hydrogen with a first pressure, the compressor 140 is connected with the hydrogen production device 110, the hydrogen storage device 120 and the hydrogenation gun 130, the compressor 140 can be switched between a hydrogen storage state and a hydrogenation state, and in the hydrogen storage state, the compressor 140 is used for pressurizing the hydrogen with the first pressure from the hydrogen production device 110 to a second pressure and storing the hydrogen in the hydrogen storage device 120; in the hydrogenated state, the compressor 140 pressurizes the hydrogen gas at the second pressure from the hydrogen storage device 120 to a third pressure and sends the hydrogen gas to the hydrogenation gun 130; wherein the third pressure is greater than the second pressure, and the second pressure is greater than the first pressure. According to the hydrogen storage device, through the integrated design of hydrogen production and hydrogenation, the problem that the hydrogen transportation cost is high in the related art can be effectively solved, the potential safety hazard caused by long-distance transportation of hydrogen is avoided, in addition, the compressor 140 in the embodiment of the application is switched between the hydrogen storage state and the hydrogenation state, gradual pressurization of the hydrogen is achieved, the arrangement cost of the compression device can be effectively reduced, the hydrogen is pressurized to the second pressure in the hydrogen storage state and stored in the hydrogen storage device 120, on one hand, the efficiency of subsequent hydrogen filling can be guaranteed, on the other hand, the cost of the hydrogen storage device 120 can be reduced, and the potential safety hazard of the hydrogen storage device 120 is reduced.

Alternatively, compressor 140 comprises a liquid-driven compressor.

The liquid-driven compressor is also called as a liquid-driven piston compressor, is one type of reciprocating compressor, and is driven by a hydraulic system in a reciprocating manner, unlike the traditional reciprocating compressor in which a crank-link mechanism drives a piston to reciprocate. The hydraulic drive compressor is characterized in that a hydraulic system alternately injects high-pressure hydraulic oil into two sides of an oil cylinder to push an oil cylinder piston to reciprocate, and the oil cylinder piston drives a piston rod and pushes the oil cylinder piston to reciprocate in an air cylinder. Compared with the traditional reciprocating compressor, the liquid-driven compressor has the characteristics of good stability, good sealing performance, small occupied area, small vibration and the like, and can achieve a larger compression ratio.

In some examples, the first pressure is 1.5-2.5 MPa, the second pressure is 5-20MPa, and the third pressure is 35MPa.

Combining some application scenes, to the less hydrogen scene of discharge capacity, this application adopts container check as interim hydrogen storage unit, under the current prerequisite of no hydrogen filling demand, directly compress the hydrogen of 2.5Mpa of hydrogen manufacturing export to 20Mpa with the liquid drive compressor and store in container check temporarily. When the hydrogen filling requirement exists in the hydrogen filling equipment, the gas is taken from the container, at the moment, the gas taking pressure of the liquid drive compressor is the container pressure, the pressure meets the high-pressure gas inlet requirement of 5-20Mpa, the rear end can be quickly filled with the hydrogen filling equipment, the filling speed is ensured, and the required quantity of the compression equipment is reduced.

Optionally, as shown in fig. 2, the hydrogen production hydrogenation apparatus further includes a first pipe 161, a first valve 171 disposed on the first pipe 161, a second pipe 162, a second valve 172 disposed on the second pipe 162, a third pipe 163, a third valve 173 disposed on the third pipe 163, a fourth pipe 164, and a fourth valve 174 disposed on the fourth pipe 164;

the first pipe 161 is connected to the hydrogen plant 110 and the inlet of the compressor 140, the second pipe 162 is connected to the outlet of the compressor 140 and the hydrogen storage device 120, the third pipe 163 is connected to the hydrogen storage device 120 and the inlet of the compressor 140, and the fourth pipe is connected to the outlet of the compressor 140 and the hydrogenation gun 130.

The embodiment limits the connection relation of the pipelines in the hydrogen production hydrogenation device, and can realize the on-off control of each pipeline by arranging corresponding valves on each pipeline.

In some embodiments, the first valve 171, the second valve 172, the third valve 173, and the fourth valve 174 may be electrically controlled valves, and the on/off of each valve may be controlled by sending control signals to each valve.

Of course, in some possible embodiments, each valve may be a manual valve, and the on-off of the corresponding pipeline is controlled by manually operating the valve.

In yet other embodiments, the number of valves on each conduit may be one or more, and when there are multiple valves on a single conduit, manual and electrically controlled valves may be included. For example, the fourth valve 174 may include a plurality of valves including a manual valve and an electrically controlled valve, and the electrically controlled valve may be used to control the opening and closing of the fourth conduit 164 during normal hydrogen, and the manual valve may be used to close the fourth conduit 164 in some emergency situations, or when the hydrogen filling is about to complete.

Optionally, in the hydrogen storage state, the first valve 171 and the second valve 172 are opened, and the third valve 173 and the fourth valve 174 are closed;

in the hydrogenation state, the first valve 171 and the second valve 172 are closed, and the third valve 173 and the fourth valve 174 are opened.

As shown in fig. 2, the inlet of the compressor 140 may be denoted as a, the outlet of the compressor 140 may be denoted as B, the inlet a of the compressor 140 may be connected to the hydrogen generating apparatus 110, and the outlet B of the compressor 140 may be connected to the hydrogen storage apparatus 120 when the first valve 171 and the second valve 172 are opened and the third valve 173 and the fourth valve 174 are closed, so that the compressor 140 may pressurize the hydrogen generated by the hydrogen generating apparatus 110 and store the pressurized hydrogen in the hydrogen storage apparatus 120.

When the first valve 171 and the second valve 172 are closed and the third valve 173 and the fourth valve 174 are opened, the inlet a of the compressor 140 is connected to the hydrogen storage device 120, and the outlet B of the compressor 140 is connected to the hydrogenation gun 130, so that the compressor 140 can further pressurize the hydrogen in the hydrogen storage device 120 and deliver the pressurized hydrogen to the hydrogenation gun 130, so as to further fill the hydrogen using device, such as the vehicle 200, with hydrogen.

The foregoing is illustrative of some embodiments of the piping connection in a hydrogen plant, as shown in fig. 3, in some variations, the hydrogen plant may include a fifth valve 175 and a sixth valve 176, where the fifth valve 175 and the sixth valve 176 are two-position two-way valves, and the inlet a of the compressor 140 is selectively connected to the hydrogen plant 110 and the hydrogen storage plant 120 through the fifth valve 175, and the inlet B of the compressor 140 is selectively connected to the hydrogenation gun 130 and the hydrogen storage plant 120 through the sixth valve 176. By switching the fifth valve 175 and the sixth valve 176, the compressor 140 can be switched between the hydrogen storage state and the hydrogenation state.

Optionally, as shown in fig. 4, the hydrogen production hydrogenation apparatus further includes a cooler 180, and the cooler 180 is connected between the outlet of the compressor 140 and the hydrogenation gun 130.

In this embodiment, the cooler 180 may cool the hydrogen added to the compressor 140, so as to improve the stability of the hydrogen filling process.

In some examples, the cooler 180 may employ a heat exchanger to cool the hydrogen gas with a cooling medium such as a coolant. In other examples, a structure such as a fin that increases the heat dissipation area may be used to achieve the cooling effect of the cooler 180.

Optionally, as shown in fig. 5, the hydrogen-producing hydrogenation apparatus further includes an oxygen storage device 150, where the hydrogen-producing device 110 generates hydrogen by electrolysis, and the oxygen storage device 150 is connected to the hydrogen-producing device 110, and is configured to store oxygen generated by electrolysis of the hydrogen-producing device 110.

In this embodiment, the hydrogen producing device 110 may be an electrolytic hydrogen producing device, and it is easy to understand that in addition to hydrogen, oxygen is also generated during the electrolytic hydrogen producing process, and the two gases are generated at different electrodes, so that the two gases may be collected separately.

In this embodiment, the oxygen storage device 150 is provided, and the oxygen storage device 150 is connected with the hydrogen production device 110, so that oxygen generated in the electrolysis process can be collected.

In combination with some examples of application scenarios, the fuel cell used by some electric devices may use oxygen as the cathode reaction gas, and based on the oxygen storage device 150 provided in this embodiment, oxygen may be filled into the electric devices.

In other examples, oxygen produced during electrolytic hydrogen production collected by oxygen storage device 150 may be further used in industrial processes, such as providing an oxidant for combustion, and the like.

Therefore, the oxygen storage device 150 is arranged in the embodiment, so that oxygen generated in the electrolytic hydrogen production process can be recycled, and the utilization rate of electrolytic hydrogen production products is improved.

Optionally, as shown in fig. 6, the hydrogen production hydrogenation apparatus further includes a controller 190, where the controller 190 is electrically connected to the hydrogenation gun 130 and the hydrogen production device 110;

the controller 190 is configured to control the hydrogen production apparatus 110 to stop producing hydrogen upon detecting that the hydrogenation gun 130 is turned on.

The controller 190 may be a central processing unit or a microprocessor, etc., and is not particularly limited herein.

In some embodiments, the hydrogenation gun 130 may be configured with a switch or a mass flow meter, and the controller 190 may determine whether the hydrogenation gun 130 is in an on state by detecting the state of the switch or acquiring a detection value of the mass flow meter.

Since the hydrogen input sources of the compressor 140 are different in different states, and when the hydrogenation gun 130 is turned on, it is often indicated that the compressor 140 is in the hydrogenation state, and at this time, the hydrogen input source of the compressor 140 is the hydrogen storage device 120, and the channels of the hydrogen production device 110, the compressor 140 and the hydrogen storage device 120 are cut off, so in this case, the controller 190 may control the hydrogen production device 110 to stop producing hydrogen, so as to avoid the danger in the hydrogen production device 110 caused by excessive pressure.

The control process of the controller 190 is further implemented in a hardware structure of the hydrogen production hydrogenation device provided in the embodiment of the present application. As for the comparison and judgment by the controller 190 in combination with the input data, and the generation of the relevant control signals to control the relevant actuators, all can be realized by the prior art.

Optionally, as shown in fig. 6, the hydrogen production hydrogenation device further includes a pressure sensor 121 and a controller 190;

the pressure sensor 121 is connected to the hydrogen storage device 120 for detecting the pressure in the hydrogen storage device 120;

controller 190 is electrically connected to pressure sensor 121 and hydrogen plant 110, and controller 190 is configured to control the start-up of hydrogen plant 110 in the event that the pressure in hydrogen storage plant 120 is less than a pressure threshold.

The present embodiment may detect the pressure of the hydrogen gas in the hydrogen storage device 120 through the pressure sensor 121, and when the pressure of the hydrogen gas in the hydrogen storage device 120 is less than the pressure threshold, it indicates that the hydrogen gas in the hydrogen storage device 120 is insufficient, and at this time, the controller 190 may control the hydrogen production device 110 to be started to supplement the hydrogen gas to the hydrogen storage device 120.

In combination with some application scenarios, if the current hydrogenation gun 130 is in a state of injecting hydrogen into the hydrogen storage device, if the pressure of the hydrogen in the hydrogen storage device 120 is smaller than the pressure threshold, the hydrogenation gun 130 may be temporarily turned off, the compressor 140 is switched from the hydrogenation state to the hydrogen storage state, and the controller 190 controls the hydrogen production device 110 to start, so as to supplement the hydrogen storage device 120 with hydrogen.

In combination with another application scenario, the pressure sensor 121 may still continuously monitor the pressure of the hydrogen in the hydrogen storage device 120 when the pressure is smaller than the pressure threshold, and the controller 190 may also control the hydrogen production device 110 to start and make the hydrogen storage device 120 be replenished with hydrogen, so that a sufficient hydrogen storage amount can be continuously reserved in the hydrogen storage device 120, and the hydrogen injection requirement of the hydrogen storage device is met.

In some examples, the pressure threshold may be selected from 5MP, 10MPa, etc., and may be set according to actual needs, which is not particularly limited herein.

In some possible embodiments, the hydrogen production hydrogenation device includes an alarm device, if the current hydrogenation gun 130 is in a state of injecting hydrogen into the hydrogen device, and if the pressure of the hydrogen in the hydrogen storage device 120 is less than the pressure threshold, the alarm device may send out an audible and visual alarm message to prompt the user that the current hydrogen storage device is in a state of low hydrogen storage.

Alternatively, if the pressure in the hydrogen storage device 120 is less than the pressure threshold when the pressure-boosting performance of the compressor 140 is high, the inlet a of the compressor 140 may be connected to the hydrogen production device 110, the outlet B of the compressor 140 may be connected to the hydrogenation gun 130, and the hydrogen generated by the hydrogen production device 110 may be directly boosted to the third pressure and delivered to the hydrogenation gun 130. Because the boost pressure is relatively high at this time, the hydrogen injection efficiency of the hydrogen gun 130 to the hydrogen device is relatively low, and in some embodiments, an alarm condition may also be used to alert the user at this time.

As shown in fig. 1, an embodiment of the present application further provides a hydrogen production hydrogenation system, including:

a vehicle 200 running in a work site; the method comprises the steps of,

the hydrogen production hydrogenation device is arranged in the working site and is used for hydrogenating the vehicle 200.

In some examples, the worksite may be a warehouse site, a factory, a mine site, a construction site, or the like. The vehicle 200 may be a forklift, an automobile, a digger, or other type of work machine, etc. The type of work site and vehicle 200 are not an exhaustive illustration.

Hydrogen production hydrogen plants may be located at the above work sites with relatively geographical limitations and, accordingly, the hydrogen demand of vehicles 200 within the work site is also relatively small.

For example, hydrogen fuel cell forklifts within a factory are generally difficult to access for hydrogen addition (and hydrogen addition resources are limited). If the hydrogenation station is invested in the factory by oneself, the construction difficulty is high, the cost is high, and the benefit is low. In contrast, in the hydrogen production hydrogenation system provided by the embodiment of the application, the hydrogen production hydrogenation device can provide the hydrogen production hydrogenation function, and compared with the traditional hydrogenation station, the hydrogen production hydrogenation system is low in cost and high in safety.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A hydrogen production hydrogenation apparatus, comprising:

a hydrogen production plant (110) for producing hydrogen at a first pressure;

a hydrogen storage device (120);

a hydrogenation gun (130);

-a compressor (140), the compressor (140) being connected to the hydrogen production plant (110), to a hydrogen storage plant (120) and to a hydrogenation gun (130), the compressor (140) being switchable between a hydrogen storage state in which the compressor (140) pressurizes hydrogen at a first pressure from the hydrogen production plant (110) to a second pressure and to be stored in the hydrogen storage plant (120); in the hydrogenated state, the compressor (140) pressurizes hydrogen gas at a second pressure from the hydrogen storage device (120) to a third pressure and delivers the hydrogen gas to the hydrogenation gun (130); wherein the third pressure is greater than the second pressure, and the second pressure is greater than the first pressure.

2. The hydrogen plant according to claim 1, wherein the compressor (140) comprises a liquid-driven compressor.

3. The hydrogen-producing hydrogenation apparatus according to claim 1, further comprising an oxygen storage device (150), said hydrogen-producing device (110) producing hydrogen by electrolysis, said oxygen storage device (150) being connected to said hydrogen-producing device (110) for storing oxygen electrolytically produced by said hydrogen-producing device (110).

4. The hydrogen production hydrogenation apparatus according to claim 1, further comprising a first pipe (161), a first valve (171) provided on the first pipe (161), a second pipe (162), a second valve (172) provided on the second pipe (162), a third pipe (163), a third valve (173) provided on the third pipe (163), a fourth pipe (164), and a fourth valve (174) provided on the fourth pipe (164);

the first pipeline (161) is connected with the hydrogen production equipment (110) and the inlet of the compressor (140), the second pipeline (162) is connected with the outlet of the compressor (140) and the hydrogen storage equipment (120), the third pipeline (163) is connected with the hydrogen storage equipment (120) and the inlet of the compressor (140), and the fourth pipeline (164) is connected with the outlet of the compressor (140) and the hydrogenation gun (130).

5. The hydrogen plant according to claim 4, characterized in that in the hydrogen storage state, the first valve (171) and the second valve (172) are open, and the third valve (173) and the fourth valve (174) are closed;

in the hydrogenation state, the first valve (171) and the second valve (172) are closed, and the third valve (173) and the fourth valve (174) are opened.

6. The hydrogen plant according to claim 1, further comprising a cooler (180), the cooler (180) being connected between an outlet of the compressor (140) and the hydrogenation gun (130).

7. The hydrogen plant according to claim 1, further comprising a controller (190), the controller (190) electrically connecting the hydrogenation gun (130) with the hydrogen plant (110);

the controller (190) is configured to control the hydrogen production apparatus (110) to stop producing hydrogen upon detecting that the hydrogenation gun (130) is turned on.

8. The hydrogen production hydrogenation apparatus of claim 1, further comprising a pressure sensor (121) and a controller (190);

the pressure sensor (121) is connected to the hydrogen storage device (120) for detecting a pressure in the hydrogen storage device (120);

the controller (190) is electrically connected with the pressure sensor (121) and the hydrogen production device (110), and the controller (190) is used for controlling the hydrogen production device (110) to start under the condition that the pressure in the hydrogen storage device (120) is smaller than a pressure threshold value.

9. The hydrogen production hydrogenation apparatus according to claim 1, wherein the first pressure is 1.5 to 2.5MPa, the second pressure is 5 to 20MPa, and the third pressure is 35MPa.

10. A hydrogen production hydrogenation system, comprising:

a vehicle (200) operating in a work site; the method comprises the steps of,

the hydrogen production hydrogenation apparatus as claimed in any one of claims 1 to 9, provided in the work site, for hydrogenating the vehicle (200).