Container type hydrogen production system

Abstract

The utility model discloses a container type hydrogen production system. The container type hydrogen production system comprises a box body and a pipeline connecting piece, the interior of the box body is sequentially divided into a first cavity, a second cavity and a third cavity through partition plates in the length direction of the box body, electric control equipment is installed in the first cavity, hydrogen production equipment is installed in the second cavity, and auxiliary equipment is installed in the third cavity; the pipeline connecting pieces are installed on the box body, one ends of the pipeline connecting pieces extend into the corresponding cavities, the other ends of the pipeline connecting pieces are exposed on the outer side of the box body and used for being connected with corresponding external pipelines, at least one pipeline connecting piece is a gas circuit connecting piece, and one end of each gas circuit connecting piece extends into the second cavity to be connected with the output end of the hydrogen production equipment. According to the container type hydrogen production system disclosed by the utility model, the pipeline connecting piece is pre-mounted on the box body, so that the external pipeline can be connected with equipment in the corresponding cavity, the standardization degree is higher, the installation is simpler, and the difficulty of field installation of the hydrogen production system is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen preparation, and specifically to a container-type hydrogen production system. Background Art

[0002] Carbon emissions are currently considered to be one of the main causes of global warming. In order to reduce the emission of carbon dioxide or other greenhouse gases, "reducing carbon and adding hydrogen" has become a global energy development trend. China has also followed the world's footsteps and vigorously developed the hydrogen energy industry. In recent years, with the gradual expansion of hydrogen application areas, temporary hydrogen use scenarios have become more and more common. Traditional hydrogen systems mostly use on-site installed hydrogen production stations to provide hydrogen products to users. However, the fixed hydrogen system cannot be easily moved and has poor flexibility, which cannot meet the needs of some special hydrogen use scenarios.

[0003] In order to facilitate the transportation and movable installation of hydrogen production systems, containerized hydrogen production systems came into being, that is, the hydrogen production system is packaged and installed in containers, thus forming a skid-mounted hydrogen refueling station, which not only reduces the transportation cost of the hydrogen production system, but also can adapt to different hydrogen usage scenarios. However, when the existing containerized hydrogen production system is installed on site, in order to adapt to external pipes of different radial sizes, corresponding through holes need to be opened on the container so that the external pipes can pass through the through holes and extend into the container to connect with the hydrogen production system, resulting in cumbersome on-site installation steps for the hydrogen production system, affecting its installation efficiency, and unable to achieve standardized installation.

[0004] Therefore, a containerized hydrogen production system is needed to at least partially solve the above problems. Utility Model Content

[0005] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0006] In order to at least partially solve the above problems, the utility model provides a container-type hydrogen production system, comprising:

[0007] A box body, wherein the box body is divided into a first cavity, a second cavity and a third cavity in sequence along its length direction by a partition, the first cavity is equipped with an electric control device, the second cavity is equipped with a hydrogen production device, and the third cavity is equipped with an auxiliary device;

[0008] A pipe connector, wherein the pipe connector is installed to the box, one end of the pipe connector extends into the corresponding cavity, and the other end is exposed to the outside of the box, and is used to be connected to the corresponding external pipe. At least one of the pipe connectors is constructed as a gas circuit connector, and one end of the gas circuit connector extends into the second cavity and is connected to the output end of the hydrogen production equipment.

[0009] According to the containerized hydrogen production system of the utility model, by pre-installing pipeline connectors on the box body, the on-site installation process of the hydrogen production system is simplified, and it can be quickly installed in different hydrogen usage scenarios, with a higher degree of standardization and simpler installation.

[0010] Optionally, the hydrogen production equipment includes an electrolyzer for producing hydrogen, the auxiliary equipment includes a supply device for providing pure water to the electrolyzer, and at least one of the pipe connectors is constructed as a pure water waterway connector, which extends into the third cavity and is connected to the input end of the supply device.

[0011] Optionally, the hydrogen production equipment includes an electrolyzer for producing hydrogen, a separation device for gas-liquid separation and a purification device for purifying mixed gas, and the gas circuit connector includes a waste discharge connector connected to the separation device and a hydrogen discharge connector connected to the purification device.

[0012] Optionally, the purification device comprises a hydrogen discharge pipeline having a plurality of hydrogen discharge branches, a concentration detection element for detecting the hydrogen content of the hydrogen product is provided in the hydrogen discharge pipeline, and a plurality of hydrogen discharge connectors are respectively connected to corresponding hydrogen discharge branches.

[0013] Optionally, the hydrogen production equipment also includes a cooling device for cooling the separation device and / or the purification device, and at least two of the pipe connectors are respectively constructed as a water inlet connector and a drainage connector, and the water inlet connector and the drainage connector are respectively connected to both ends of the cooling pipeline of the cooling device.

[0014] Optionally, the water inlet connector and the water outlet connector are installed on the same side of the box body.

[0015] Optionally, the box body includes a top plate, a first side plate and a second side plate located on both sides of the top plate, the pipe connector is installed to the first side plate, the second side plate has a second opening connected to the second cavity, and the second side plate is connected to a second box door for covering the second opening in an openable and closable manner.

[0016] Optionally, the first side panel and / or the second side panel is provided with a vent; and / or

[0017] The top plate is equipped with a heat dissipation device for adjusting the temperature inside the box.

[0018] Optionally, the box body is provided with a first opening connected to the first cavity and a third opening connected to the third cavity at both ends along its length direction, and the box body is connected with a first box door for opening and closing to cover the first opening and a third box door for opening and closing to cover the third opening.

[0019] Optionally, the pipeline connector is an interface flange, which includes a flange body, an internal pipe joint and an external pipe joint located on both sides of the flange body, the box body is provided with a through hole for the internal pipe joint to extend into the box body, and the external pipe joint is connected to the external pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following drawings of the present invention are used as a part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principle of the present invention.

[0021] In the attached figure:

[0022] Figure 1 A top view of a containerized hydrogen production system with the top plate removed according to the present invention;

[0023] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0024] Figure 3 It is a side view of a container-type hydrogen production system with a first side panel according to the utility model;

[0025] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0026] Figure 5 It is a side view of a container-type hydrogen production system with the first side panel removed according to the utility model.

[0027] Description of reference numerals:

[0028] 100: Containerized hydrogen production system 10: Container 11: Box

[0029] 111: top plate 112: first side plate 113: second side plate

[0030] 114: bottom plate 12: first cavity 13: second cavity

[0031] 14: The third chamber 15: The first door 16: The second door

[0032] 17: Third door 18: Partition 19: Ventilation hole

[0033] 21: Electric control equipment 211: Control cabinet 212: Rectifier transformer

[0034] 22: Hydrogen production equipment 221: Electrolyzer 222: Separation device

[0035] 223: Purification device 23: Auxiliary equipment 231: Supply device

[0036] 232: Pure water tank 233: Make-up water pump 234: Alkaline solution tank

[0037] 235: Alkali pump 236: Air compressor 30: Pipeline connector

[0038] 31: Gas connection 311: Waste discharge connection 312: Hydrogen discharge connection

[0039] 32: Water connection 321: Pure water connection 322: Water inlet connection

[0040] 323: Drain connector 33: Nitrogen connector 30a: Flange body

[0041] 30b: Internal pipe joint 30c: External pipe joint 30d: Mounting hole

[0042] 40: Heat dissipation device DETAILED DESCRIPTION

[0043] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of the features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0045] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component". It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer" and similar expressions used in this document are for illustrative purposes only and are not limiting.

[0046] Now, exemplary embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

[0047] The utility model provides a containerized hydrogen production system 100. For the specific structure of the containerized hydrogen production system 100, please refer to Figure 1 and Figure 2 , which includes a container 10, wherein the container 10 includes a box body 11, the box body 11 is constructed in a roughly rectangular parallelepiped structure, and the box body 11 is divided into a first cavity 12, a second cavity 13 and a third cavity 14 along its length direction by a partition 18. An electric control device 21 is installed in the first cavity 12, a hydrogen production device 22 is installed in the second cavity 13, and an auxiliary device 23 is installed in the third cavity 14. The hydrogen production system is divided into multiple modules, and different modules are integrated in the container 10, which has the advantages of easy transportation, high integration and modularization, and the partition 18 is made of explosion-proof material, providing safe and reliable hydrogen production and storage conditions.

[0048] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the box body 11 is installed with multiple pipe connectors 30, one end of the pipe connector 30 extends into the corresponding cavity, and the other end is exposed on the outside of the box body 11, which is used to be connected to the corresponding external pipeline, wherein the pipe connector 30 can be a gas circuit connector 31 or a water circuit connector 32, or it can be other pipe connectors 30 used to connect the hydrogen production system and the external pipeline.

[0049] According to the containerized hydrogen production system 100 of the present invention, the box body 11 is pre-installed with a pipe connector 30, so that the external pipe can be connected to the equipment in the corresponding cavity, with a higher degree of standardization and simpler installation, which reduces the difficulty of on-site installation of the hydrogen production system.

[0050] like Figure 1 , Figure 2 and Figure 5As shown, at least one pipe connector 30 is constructed as a gas connector 31, one end of the gas connector 31 extends into the second cavity 13 and is connected to the output end of the hydrogen production equipment 22, and the other end is exposed to the outside of the box 11 and is connected to an external pipe for exporting gas, so as to output the gas prepared by the hydrogen production equipment 22 to the outside, thereby forming a skid-mounted hydrogen refueling station, which not only reduces the transportation cost of the hydrogen production system, but also can adapt to different hydrogen usage scenarios.

[0051] For the specific structure of the hydrogen production equipment 22, please refer to Figure 1 and Figure 3 , which includes an electrolytic cell 221, a separation device 222 and a purification device 223, wherein the electrolytic cell 221 is used to produce hydrogen, the separation device 222 is used to separate gas and liquid, the purification device 223 is used to purify the mixed gas, and the gas circuit connector 31 includes a waste discharge connector 311 connected to the separation device 222 and a hydrogen discharge connector 312 connected to the purification device 223, so that the hydrogen product and the waste gas are discharged through different external pipelines.

[0052] like Figure 1 and Figure 3 As shown, an electrolyte is injected into the electrolytic cell 221, and then a direct current is passed through the electrolytic cell 221 filled with the electrolyte, and water molecules undergo an electrochemical reaction on the electrodes to decompose into hydrogen and oxygen. The decomposed hydrogen and oxygen are then passed into the separation device 222 together with the circulating electrolyte for gas-liquid separation, washing, and cooling to obtain raw hydrogen containing a small amount of oxygen and water vapor and oxygen containing a small amount of hydrogen and water vapor. The raw hydrogen is further passed into the purification device 223, and after deoxygenation, cooling, gas-water separation, and drying, product hydrogen is finally obtained, wherein the electrolyte contains a solution of electrolytes such as sulfuric acid, sodium hydroxide, and potassium hydroxide. The oxygen containing a small amount of hydrogen and water vapor obtained by the separation device 222 is discharged through an external pipeline connected to the waste discharge connector 311, and the product hydrogen obtained by the purification device 223 is discharged through an external pipeline connected to the hydrogen discharge connector 312, thereby achieving separation and purification of hydrogen and oxygen.

[0053] For the specific structure of the purification device 223, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5, which includes a hydrogen discharge pipeline with multiple hydrogen discharge branches, in which a concentration detection element for detecting the hydrogen content of hydrogen products, such as a hydrogen sensor, is provided; the hydrogen discharge pipeline is provided with a valve for controlling the on-off of the output end of the purification device 223 and the hydrogen discharge branch, and multiple hydrogen discharge connectors 312 are respectively connected to the corresponding hydrogen discharge branches. According to the hydrogen content of the hydrogen product detected by the concentration detection element, the product hydrogen is controlled to flow out through the corresponding hydrogen discharge branch. Exemplarily, the hydrogen is divided into at least qualified products and unqualified products according to the hydrogen content of the hydrogen product, and the hydrogen discharge connector 312 can be divided into a qualified product connector and an unqualified product connector to ensure that the output of the hydrogen product meets the use requirements.

[0054] Preferably, the hydrogen discharge pipeline is a three-way pipeline with two hydrogen discharge branches, and the valve is a three-way valve for controlling the on-off of the three-way pipeline. It has a simple structure and is easy to operate, and can quickly introduce hydrogen products with different hydrogen contents into the corresponding hydrogen discharge branches.

[0055] The hydrogen production equipment 22 also includes a cooling device for cooling the separation device 222 and / or the purification device 223, such as Figure 1 , Figure 2 and Figure 4 As shown, at least two pipe connectors 30 are constructed as water connectors 32, and the two water connectors 32 are respectively a water inlet connector 322 and a drainage connector 323. The water inlet connector 322 and the drainage connector 323 are respectively connected to the two ends of the cooling pipeline of the cooling device. The other end of the water inlet connector 322 exposed to the outside of the box body 11 is connected to an external pipeline for inputting cooling water, and the other end of the drainage connector 323 exposed to the outside of the box body 11 is connected to an external pipeline for outputting cooling water, so as to ensure the effect of hydrogen separation and purification, and finally obtain a hydrogen product that meets the use requirements. At the same time, the output cooling water can also be recycled to achieve energy saving and emission reduction.

[0056] like Figure 2 and Figure 5 As shown, the water inlet connector 322 and the drain connector 323 are installed on the same side of the box body 11, which is more convenient to operate and is conducive to the input and output of cooling water.

[0057] For the specific structure of the auxiliary device 23, please refer to Figures 1 to 5 It includes a supply device 231 for providing pure water to the electrolytic cell 221, at least one pipe connector 30 is configured as a water connector 32, and the water connector 32 is a pure water water connector 321. The pure water water connector 321 extends into the third cavity 14 and is connected to the input end of the supply device 231. The other end of the pure water water connector 321 exposed to the outside of the box body 11 is connected to an external pipe for inputting pure water, thereby ensuring that the supply amount of pure water meets the required amount of pure water of the electrolytic cell 221.

[0058] like Figure 1 and Figure 3 As shown, an air compressor 236, a pure water tank 232 and a water replenishment pump 233 for injecting the pure water in the pure water tank 232 into the electrolytic cell 221 are installed in the third cavity 14, wherein the supply device 231 re-purifies the pure water input through the pure water waterway to ensure that the refined pure water meets the electrolysis process requirements, and the output end of the supply device 231 is connected to the pure water tank 232 so that the refined pure water can be injected into the electrolytic cell 221 through the water replenishment pump 233, so as to achieve continuous output of hydrogen through water electrolysis.

[0059] like Figure 1 and Figure 3 As shown, a control cabinet 211 and a rectifier transformer 212 are installed in the first cavity 12, wherein the input end of the rectifier transformer 212 is connected to the control cabinet 211 through a cable, and the output end of the rectifier transformer 212 is connected to the cable electrolytic cell 221 to supply direct current to the electrolyte in the electrolytic cell 221.

[0060] According to the different electrolytes, it is divided into alkaline water electrolysis hydrogen production and acid water electrolysis hydrogen production. Taking alkaline water electrolysis hydrogen production as an example, Figure 1 and Figure 3 As shown, an alkali liquid tank 234 and an alkali pump 235 are also installed in the third cavity 14, so that the alkali liquid tank 234 can be continuously injected into the electrolytic cell 221 through the alkali pump 235, wherein the alkali liquid tank 234 stores alkaline electrolytes such as sodium hydroxide and potassium hydroxide.

[0061] like Figure 1 and Figure 5 As shown, at least one pipeline connector 30 is configured as a nitrogen connector 33, one end of the nitrogen connector 33 extends into the second cavity 13 and is connected to the separation device 222 and / or the purification device 223, and the other end is exposed to the outside of the box 11 and is connected to an external pipeline for inputting nitrogen. Before separating and purifying hydrogen, nitrogen is introduced into the separation device 222 and / or the purification device 223 to discharge the air remaining therein, thereby preventing an explosion of hydrogen due to excessive air concentration.

[0062] For the specific structure of the box 11, please refer to Figures 1 to 5 , which includes a top plate 111, a bottom plate 114, a first side plate 112 and a second side plate 113. The top plate 111 and the bottom plate 114 are arranged relatively to each other in the vertical direction of the box body 11, and the first side plate 112 and the second side plate 113 are arranged relatively to each other on both sides of the top plate 111 and the bottom plate 114 in the width direction of the box body 11. The pipeline connector 30 is installed to the first side plate 112, which is convenient for connecting the pipeline connector 30 with the corresponding external pipeline, thereby improving the on-site installation efficiency and ensuring that the containerized hydrogen production system 100 is quickly put into use.

[0063] like Figure 1 As shown, the second side plate 113 is provided with a second opening connected to the second cavity 13, and the second side plate 113 is connected with a second door 16 for covering the second opening in an openable and closable manner, which is conducive to the rapid disassembly and assembly of the hydrogen production equipment 22 and ensures a stable transportation environment and use environment. In addition, by opening the second door 16, the ventilation effect of the second cavity 13 can be enhanced and the temperature in the second cavity 13 can be effectively controlled.

[0064] The first side plate 112 and the second side plate 113 are provided with ventilation openings 19, for example, Figure 4 As shown, a plurality of vents 19 are arranged at intervals on the first side plate 112, so that the first cavity 12, the second cavity 13 and the third cavity 14 respectively exchange heat with the outside through the corresponding vents 19, ensuring that the temperature in the box 11 meets the safety production requirements.

[0065] Figure 4 As shown, the vents 19 arranged in alternate rows on the first side panel 112 are louver vents, which can control the ventilation volume by controlling the angle of the blades, have a strong ability to regulate air flow, and can also prevent mosquitoes from flying in and wind and rain from entering. At the same time, they can reduce direct sunlight and slow down the aging of equipment.

[0066] The top plate 111 is equipped with a heat dissipation device 40 for adjusting the temperature in the box 11, such as an exhaust fan, which can accelerate the air flow in the box 11, thereby improving the efficiency of cooling the box 11. For example, Figure 3 As shown, the top plate 111 is provided with a plurality of exhaust ports, the first cavity 12, the second cavity 13 and the third cavity 14 are respectively connected to the corresponding exhaust ports, and a heat dissipation device 40 is respectively provided at each exhaust port to further improve the ventilation and heat dissipation effects.

[0067] like Figure 1 As shown, the box body 11 is provided with a first opening connected to the first cavity 12 and a third opening connected to the third cavity 14 at both ends along its length direction, and the box body 11 is connected with a first box door 15 for opening and closing to cover the first opening and a third box door 17 for opening and closing to cover the third opening, which is conducive to the rapid disassembly and assembly of the hydrogen production equipment 22, and by opening the first box door 15 and the third box door 17, the ventilation effect of the first cavity 12 and the third cavity 14 can be enhanced, and the temperature in the first cavity 12 and the third cavity 14 can be effectively controlled.

[0068] like Figure 1As shown, the first box door 15, the second box door 16 and the third box door 17 each include two plate-shaped door bodies. When the first box door 15, the second box door 16 and the third box door 17 are in an open state, they are in a double-opening type, that is, one end of the door body is hinged to the box body 11, and the other end is a free end. The free end can rotate around the hinged end to open the first opening, the second opening and the third opening of the box body 11 accordingly, to install the electronic control equipment 21, the hydrogen production equipment 22 and the auxiliary equipment 23, or to accelerate the speed at which the hot air in the box body 11 diffuses outward.

[0069] like Figure 2 and Figure 5 As shown, the pipeline connector 30 is an interface flange, which includes a flange body 30a, an internal pipe joint 30b and an external pipe joint 30c located on both sides of the flange body 30a, and the box body 11 is provided with a through hole for the internal pipe joint 30b to extend into the box body 11, and the external pipe joint 30c is connected to the external pipe. It has a simple structure, convenient assembly, reliable connection method, excellent sealing performance, high degree of standardization, and is suitable for industrial production.

[0070] like Figure 2 and Figure 5 As shown, the flange body 30a radially protrudes from the internal pipe joint 30b and the external pipe joint 30c, and the flange body 30a is provided with a plurality of mounting holes 30d for fasteners to pass through. The fasteners pass through the mounting holes on the external pipe and the mounting holes 30d on the flange body 30a in sequence, thereby realizing a fastened connection and a sealed fit between the external pipe and the interface flange, facilitating the fastened connection between the external pipe and the corresponding interface flange, and improving the firmness of the connection structure.

[0071] The processes and steps described in all the above preferred embodiments are only examples. Unless adverse effects occur, various processing operations can be performed in a sequence different from the sequence of the above processes. The sequence of steps in the above processes can also be increased, merged or deleted according to actual needs.

[0072] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. The features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise specified in the other embodiment.

[0073] The present invention has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and explanation, and the present invention is not limited to the above-mentioned embodiments. According to the teachings of the present invention, more variations and modifications can be made, and these variations and modifications all fall within the scope of protection required by the present invention.

Claims

1. A containerized hydrogen production system, characterized in that: include: A box body, wherein the box body is divided into a first cavity, a second cavity and a third cavity in sequence along its length direction by a partition, the first cavity is equipped with an electric control device, the second cavity is equipped with a hydrogen production device, and the third cavity is equipped with an auxiliary device; A pipe connector, wherein the pipe connector is installed to the box, one end of the pipe connector extends into the corresponding cavity, and the other end is exposed to the outside of the box, and is used to be connected to the corresponding external pipe. At least one of the pipe connectors is constructed as a gas circuit connector, and one end of the gas circuit connector extends into the second cavity and is connected to the output end of the hydrogen production equipment.

2. The containerized hydrogen production system according to claim 1, characterized in that: The hydrogen production equipment includes an electrolyzer for producing hydrogen, and the auxiliary equipment includes a supply device for providing pure water to the electrolyzer. At least one of the pipe connectors is constructed as a pure water waterway connector, and the pure water waterway connector extends into the third cavity and is connected to the input end of the supply device.

3. The containerized hydrogen production system according to claim 1, characterized in that: The hydrogen production equipment includes an electrolyzer for producing hydrogen, a separation device for gas-liquid separation and a purification device for purifying mixed gas, and the gas path connector includes a waste discharge connector connected to the separation device and a hydrogen discharge connector connected to the purification device.

4. The containerized hydrogen production system according to claim 3, characterized in that: The purification device comprises a hydrogen discharge pipeline having a plurality of hydrogen discharge branches, wherein a concentration detection element for detecting the hydrogen content of hydrogen products is arranged in the hydrogen discharge pipeline, and a plurality of hydrogen discharge connectors are respectively connected to corresponding hydrogen discharge branches.

5. The containerized hydrogen production system according to claim 3, characterized in that: The hydrogen production equipment also includes a cooling device for cooling the separation device and / or the purification device, and at least two of the pipeline connectors are respectively constructed as a water inlet connector and a drainage connector, and the water inlet connector and the drainage connector are respectively connected to two ends of the cooling pipeline of the cooling device.

6. The containerized hydrogen production system according to claim 5, characterized in that: The water inlet connector and the water discharge connector are installed on the same side of the box.

7. The containerized hydrogen production system according to claim 1, characterized in that: The box body includes a top plate, a first side plate and a second side plate located on both sides of the top plate, the pipe connector is installed on the first side plate, the second side plate is provided with a second opening connected to the second cavity, and the second side plate is connected to a second box door for covering the second opening in an openable and closable manner.

8. The containerized hydrogen production system according to claim 7, characterized in that: The first side panel and / or the second side panel are provided with ventilation holes; and / or The top plate is equipped with a heat dissipation device for adjusting the temperature inside the box.

9. The containerized hydrogen production system according to claim 1, characterized in that: The box body is provided with a first opening connected to the first cavity and a third opening connected to the third cavity at both ends along its length direction, and the box body is connected with a first box door for opening and closing to cover the first opening and a third box door for opening and closing to cover the third opening.

10. The containerized hydrogen production system according to any one of claims 1 to 9, characterized in that: The pipeline connector is an interface flange, which includes a flange body, an internal pipe joint and an external pipe joint located on both sides of the flange body. The box body is provided with a through hole for the internal pipe joint to extend into the box body, and the external pipe joint is connected to the external pipe.

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