Electrolytic hydrogen production system

Abstract

The utility model provides an electrolytic hydrogen production system which comprises a central control device and at least two container modules, and any container module comprises a first box body, a plurality of electrolytic cells, a first control device, a second box body and a gas-liquid separation device. The multiple electrolytic cells are located in the first box body, and the first control device is located in the first box body and electrically connected to the multiple electrolytic cells. The second box body is located outside the first box body, the gas-liquid separation device is located inside the second box body, the gas-liquid separation device is electrically connected to the first control device, and the central control device is electrically connected to the first control device in at least one container module. According to the electrolytic hydrogen production system disclosed by the utility model, the plurality of container modules are controlled by the central control device, so that the plurality of container modules can be integrated, the electrolytic hydrogen production system is suitable for large-scale electrolytic hydrogen production operation, and the expansibility and the flexibility of the electrolytic hydrogen production system are improved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of electrolytic hydrogen production, and more specifically to an electrolytic hydrogen production system. Background Art

[0002] The containerized electrolysis hydrogen production unit is a modular, portable hydrogen production system that can produce hydrogen in various environments and is suitable for scenarios such as distributed energy systems, remote areas and emergency needs.

[0003] When the current containerized hydrogen electrolysis device design is expanded on a large scale, the coordination and integration between different modules may become complicated, affecting the overall performance and stability of the system. Since the energy supply of green energy (wind energy, photovoltaic energy, etc.) is relatively volatile, the allocation and management of resources become more complicated, requiring a more efficient resource scheduling mechanism. The existing hydrogen electrolysis system configuration is relatively fixed and it is difficult to quickly adapt to changes in different scenarios and needs.

[0004] Therefore, it is necessary to provide a hydrogen production system by electrolysis 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 an electrolytic hydrogen production system, the electrolytic hydrogen production system comprising a central control device and at least two container modules, any of the container modules comprising:

[0007] The first box;

[0008] A plurality of electrolytic cells, wherein the plurality of electrolytic cells are located inside the first housing;

[0009] A first control device, the first control device is located inside the first housing and is electrically connected to the plurality of electrolytic cells;

[0010] a second box, the second box being located outside the first box;

[0011] A gas-liquid separation device, the gas-liquid separation device is located inside the second box, and the gas-liquid separation device is electrically connected to the first control device;

[0012] The central control device is electrically connected to the first control device in at least one of the container modules.

[0013] Optionally, at least part of the first box body includes a box body and a side door, and the box body includes a side opening;

[0014] The side door extends along the length direction of the box body, and is configured to be pivotally connected to the box body around the length direction of the box body to open and close the side opening.

[0015] Optionally, the first housing has a first accommodating area, and a plurality of partition members are arranged in the first accommodating area, and the partition members partition the first accommodating area into a plurality of mutually independent sub-chambers;

[0016] Along the height direction of the first box body, the sub-chambers have at least two layers;

[0017] Along the width direction of the first box body, the sub-chambers have at least two rows;

[0018] At least one electrolytic cell is disposed in any of the sub-chambers.

[0019] Optionally, the first box body further comprises a second accommodating area, and along the length direction of the first box body, the second accommodating area is separated from the first accommodating area by the spacing member;

[0020] The first control device is disposed in the second accommodating area;

[0021] The first control device includes a rectifier cabinet and a control box, and the control box is electrically connected to the rectifier cabinet.

[0022] Optionally, the second box body is detachably connected to the top surface of the first box body and is consistent with the extension direction of the first box body.

[0023] Optionally, the gas-liquid separation device comprises:

[0024] a liquid separation tank connected to the bottom surface of the second housing;

[0025] a drainer connected to a bottom surface of the second housing;

[0026] A secondary liquid separator, the secondary liquid separator is located on one side of the liquid separator tank;

[0027] a scrubber, the scrubber being located on one side of the secondary liquid separator; and

[0028] A cooler is located above the liquid separation tank.

[0029] Optionally,

[0030] The liquid separator tank comprises a hydrogen side liquid separator tank and an oxygen side liquid separator tank, and the hydrogen side liquid separator tank and the oxygen side liquid separator tank are spaced apart along the length direction of the second box body;

[0031] The drainer includes a hydrogen side drainer and an oxygen side drainer, the drainer is located between the hydrogen side liquid separation tank and the oxygen side liquid separation tank, and the hydrogen side drainer and the oxygen side drainer are spaced apart along the length direction of the second box;

[0032] The secondary liquid separator is located between the hydrogen side liquid separator and the oxygen side liquid separator, and includes a hydrogen side secondary liquid separator and an oxygen side secondary liquid separator, and the hydrogen side secondary liquid separator and the oxygen side secondary liquid separator are spaced apart along the length direction of the second box.

[0033] Optionally,

[0034] The secondary liquid separator protrudes upward from the drainer, and the drainer is located between the hydrogen-side secondary liquid separator and the oxygen-side secondary liquid separator;

[0035] The scrubber protrudes upward from the liquid separator tank, and the scrubber includes a hydrogen side scrubber and an oxygen side scrubber, the hydrogen side scrubber and the oxygen side scrubber are spaced apart along the length direction of the second box, and the secondary liquid separator is located between the hydrogen side scrubber and the oxygen side scrubber;

[0036] The cooler includes a hydrogen side cooler and an oxygen side cooler, and the hydrogen side cooler is spaced apart from the oxygen side cooler along a length direction of the second box.

[0037] Optionally, the electrolysis hydrogen production system further includes air conditioning equipment, which is installed inside the first box body and the second box body respectively.

[0038] Optionally, the electrolysis hydrogen production system further includes a purification device and a hydrogen storage tank, wherein the purification device and the hydrogen storage tank are both located outside the first box body and the second box body, and the purification device and the hydrogen storage tank are both electrically connected to the first control device.

[0039] According to the electrolytic hydrogen production system of the utility model, multiple container modules are controlled by a central control device, so that multiple container modules can be integrated, which is suitable for large-scale electrolytic hydrogen production operations and improves the scalability and flexibility of the electrolytic hydrogen production system. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The following drawings of the embodiments of the present invention are used as 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 principles of the present invention. In the drawings,

[0041] Figure 1 This is a schematic cross-sectional structure diagram of a container module of an electrolytic hydrogen production system according to a preferred embodiment of the utility model (I);

[0042] Figure 2 This is a schematic cross-sectional structure diagram of a container module of an electrolytic hydrogen production system according to a preferred embodiment of the utility model (II);

[0043] Figure 3 is a schematic cross-sectional structure diagram of an electrolytic cell placed in a first box; and

[0044] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure when the first box body is opened.

[0045] Description of reference numerals:

[0046] 1 Electrolysis hydrogen production system 11 Container module

[0047] 12 First box 12a First accommodating area

[0048] 12b Second accommodating area 12c Sub-chamber

[0049] 13 electrolytic cell 14 first control device

[0050] 15 Second box 16 Gas-liquid separation device

[0051] 121 box body 121a side opening

[0052] 122 side door 123 partition member

[0053] 123a first partition plate 123b second partition plate

[0054] 123c Third partition 141 Rectifier cabinet

[0055] 161 Separation tank 161a Hydrogen side separation tank

[0056] 161b Oxygen side liquid separation tank 162 Drainer

[0057] 162a Hydrogen side drainer 162b Oxygen side drainer

[0058] 163 Secondary liquid separator 163a Hydrogen side secondary liquid separator

[0059] 163b Oxygen side secondary liquid separator 164 Scrubber

[0060] 164a Hydrogen side scrubber 164b Oxygen side scrubber

[0061] 165 Cooler 165a Hydrogen side cooler

[0062] 165b Oxygen side cooler DL Length direction

[0063] DW width direction DH height direction DETAILED DESCRIPTION

[0064] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0065] In order to fully understand the implementation of the present invention, a detailed structure will be presented in the following description. Obviously, the implementation of the implementation of the present invention is not limited to the specific details familiar to those skilled in the art.

[0066] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present invention, and the singular forms "a", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, it indicates the presence of the features, integral bodies, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integral bodies, steps, operations, elements, components and / or combinations thereof.

[0067] 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 the present invention are for illustrative purposes only and are not limiting.

[0068] Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings. These drawings show representative embodiments of the present invention and are not intended to limit the present invention.

[0069] This embodiment provides a hydrogen production system by electrolysis.

[0070] See also Figure 1The electrolysis hydrogen production system 1 includes a central control device and at least two container modules 11, and any container module 11 includes a first box 12, a plurality of electrolyzers 13, a first control device 14, a second box 15, and a gas-liquid separation device 16. Specifically, the plurality of electrolyzers 13 are located inside the first box 12. The first control device 14 is located inside the first box 12 and is electrically connected to the plurality of electrolyzers 13. The second box 15 is located outside the first box 12. The gas-liquid separation device 16 is located inside the second box 15, and the gas-liquid separation device 16 is electrically connected to the first control device 14. The central control device is electrically connected to the first control device 14 in at least one container module 11.

[0071] According to the electrolytic hydrogen production system 1 of the utility model, multiple container modules 11 are controlled by a central control device, so that multiple container modules 11 can be integrated, which is suitable for large-scale electrolytic hydrogen production operations, thereby improving the scalability and flexibility of the electrolytic hydrogen production system 1.

[0072] It should be noted that the first control device 14 can be any existing device or equipment that can be applied to the electrolysis hydrogen production system 1 and regulate the operation of the electrolyzer 13; similarly, the central control device can be any existing device or equipment that can be applied to the electrolysis hydrogen production system 1 and coordinately regulate the first control device 14.

[0073] See also Figure 1 In this embodiment, the second box 15 is detachably connected to the top surface of the first box 12 and is consistent with the extension direction of the first box 12. Alternatively, the second box 15 can be arranged in sequence with the first box 12 in a horizontal direction, such as the length direction DL or the width direction DW of the box. Under actual site constraints, the first box 12 can be tilted or vertical relative to the second box 15. The container module 11 can be connected to the central control device through a standardized interface.

[0074] Please continue reading Figure 1 The first housing 12 has a first accommodating area 12a and a second accommodating area 12b. Along the length direction DL of the first housing 12, the second accommodating area 12b is separated from the first accommodating area 12a by a spacing member 123. The first control device 14 is disposed in the second accommodating area 12b. The first control device 14 includes a rectifier cabinet 141 and a control box. The control box is electrically connected to the rectifier cabinet 141. Figure 2 and Figure 3Specifically, a plurality of partition members 123 are provided in the first accommodating area 12a, and the partition members 123 partition the first accommodating area 12a into a plurality of mutually independent sub-chambers 12c. Along the height direction DH of the first box body 12, the sub-chambers 12c have at least two layers, and along the width direction DW of the first box body 12, the sub-chambers 12c have at least two rows, and at least one electrolytic cell 13 is provided in any sub-chamber 12c. For example Figure 2 and Figure 3 In the embodiment, along the height direction DH of the first box body 12, the sub-chambers 12c are two layers, along the width direction DW of the first box body 12, the sub-chambers 12c are two rows, and each sub-chamber 12c is provided with an electrolytic cell 13. It should be noted that the partition member 123 may include a first partition plate 123a, a second partition plate 123b and a third partition plate 123c. Figures 1 to 3 The first partition 123a is used to separate the first accommodating area 12a from the second accommodating area 12b, the second partition 123b is used to separate the adjacent sub-chambers 12c along the height direction DH of the first box body 12, and the third partition 123c is used to separate the adjacent sub-chambers 12c along the width direction DW of the first box body 12, so as to facilitate the placement of the electrolytic cell 13.

[0075] See also Figure 4 In order to facilitate the placement of the electrolytic cell 13, at least part of the first box body 12 includes a box body 121 and a side door 122, for example, each box body 12 includes a side door 122. Specifically, the box body 121 includes a side opening 121a, and the side door 122 extends along the length direction of the box body 121. The side door 122 is configured to be pivotally connected to the box body 121 around the length direction DL of the box body 121 to open and close the side opening 121a. In other words, after the side door 122 is opened, the electrolytic cell 13 can be placed in the box body 121 along the length direction DL of the box body 121 to improve the working efficiency.

[0076] Return to Reference Figure 1 and Figure 3, the gas-liquid separation device 16 includes a liquid separator 161, a drainer 162, a secondary liquid separator 163, a scrubber 164 and a cooler 165. Specifically, the liquid separator 161 is connected to the bottom surface of the second box 15. The drainer 162 is connected to the bottom surface of the second box 15. The secondary liquid separator 163 is located on one side of the liquid separator 161, and the scrubber 164 is located on one side of the secondary liquid separator 163. The cooler 165 is located above the liquid separator 161. Further, the liquid separator 161 includes a hydrogen side liquid separator 161a and an oxygen side liquid separator 161b, and the hydrogen side liquid separator 161a and the oxygen side liquid separator 161b are spaced along the length direction DL of the second box 15. The drainer 162 includes a hydrogen side drainer 162a and an oxygen side drainer 162b, and the drainer 162 is located between the hydrogen side liquid separator 161a and the oxygen side liquid separator 161b. The hydrogen side drainer 162a and the oxygen side drainer 162b are spaced apart along the length direction DL of the second housing 15. The secondary liquid separator 163 is located between the hydrogen side liquid separator 161a and the oxygen side liquid separator 161b. Specifically, the secondary liquid separator 163 includes a hydrogen side secondary liquid separator 163a and an oxygen side secondary liquid separator 163b. The hydrogen side secondary liquid separator 163a and the oxygen side secondary liquid separator 163b are spaced apart along the length direction DL of the second housing 15. The secondary liquid separator 163 protrudes upward from the drainer 162. The drainer 162 is located between the hydrogen side secondary liquid separator 163a and the oxygen side secondary liquid separator 163b. The scrubber 164 protrudes upward from the liquid separator 161. The scrubber 164 includes a hydrogen side scrubber 164a and an oxygen side scrubber 164b. The hydrogen side scrubber 164a and the oxygen side scrubber 164b are spaced apart along the length direction of the second tank 15, and the secondary liquid separator 163 is located between the hydrogen side scrubber 164a and the oxygen side scrubber 164b. The cooler 165 includes a hydrogen side cooler 165a and an oxygen side cooler 165b, and the hydrogen side cooler 165a and the oxygen side cooler 165b are spaced apart along the length direction DL of the second tank 15.

[0077] Those skilled in the art know that the hydrogen generated by hydrogen electrolysis needs to be purified and collected, so the hydrogen electrolysis system 1 also includes a purification device and a hydrogen storage tank. It should be noted that the purification device and the hydrogen storage tank are both located outside the first box 12 and the second box 15, and the purification device and the hydrogen storage tank are electrically connected to the first control device 14. The first box 12 and the second box 15 can be constructed as containers of standard size, and the hydrogen electrolysis system 1 also includes air conditioning equipment, which is installed inside the first box 12 and the second box 15 respectively to adjust the temperature inside the box to ensure the effective operation of the hydrogen electrolysis system 1.

[0078] The following describes a 4000Nm 3 / h hydrogen production project design, the existing technical solutions mostly do not consider the container type, this embodiment sets the hydrogen production capacity of the electrolyzer 13 to 50Nm 3 / h.

[0079] See also Figure 1 and Figure 2 , 16 electrolyzers 13 are placed in the first box 12, and accordingly, a first control device 14 is also placed in the first box 12. The input and output pipelines of the electrolytic hydrogen production are connected to the box, for example, by flange connection. The gas-liquid separation device 16 is placed inside the second box 15 located on the top of the first box 12, with 5 container modules 11 as a group, so that the hydrogen production capacity of the electrolytic hydrogen production system 1 is 50Nm 3 / h*16*5=4000Nm 3 / h, the first box body 12 is opened through the side door 122. The purification device and the hydrogen storage tank are placed in a specific area, and the container module 11 is placed in an orderly manner. Through the intelligent control of the central control device, the working time of a single electrolyzer 13 is adjusted in time according to the power supply load. Compared with the overall equipment, the controllability of the electrolytic hydrogen production system 1 of the utility model is greatly enhanced, and it can meet the requirements of maintaining the quality of the generated hydrogen stable under low-load power supply conditions.

[0080] According to the electrolytic hydrogen production system 1 of the utility model, the container module 11 can be operated in coordination with the central control device. As the demand for electrolytic hydrogen production changes, the number of container modules 11 can be increased or decreased, which is convenient for the central control device to manage uniformly and for technicians to find and solve problems in a timely manner through the central control device. In addition, each container module 11 has an independent first control device 14, which can monitor and control a single container module 11. In addition, the central control device can dynamically adjust the allocation of container modules 11 to improve the overall work efficiency and resource utilization of the system.

[0081] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" appearing in this article may indicate that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0082] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of the protection claimed by the utility model.

Claims

1. A hydrogen production system by electrolysis, characterized in that: The electrolysis hydrogen production system comprises a central control device and at least two container modules, and any of the container modules comprises: The first box; A plurality of electrolytic cells, wherein the plurality of electrolytic cells are located inside the first housing; A first control device, the first control device is located inside the first housing and is electrically connected to the plurality of electrolytic cells; a second box, the second box being located outside the first box; A gas-liquid separation device, the gas-liquid separation device is located inside the second box, and the gas-liquid separation device is electrically connected to the first control device; The central control device is electrically connected to the first control device in at least one of the container modules.

2. The electrolysis hydrogen production system according to claim 1, characterized in that: At least part of the first box body includes a box body and a side door, and the box body includes a side opening; The side door extends along the length direction of the box body, and is configured to be pivotally connected to the box body around the length direction of the box body to open and close the side opening.

3. The electrolysis hydrogen production system according to claim 1, characterized in that: The first housing has a first accommodating area, and a plurality of partition members are arranged in the first accommodating area, and the partition members partition the first accommodating area into a plurality of mutually independent sub-chambers; Along the height direction of the first box body, the sub-chambers have at least two layers; Along the width direction of the first box body, the sub-chambers have at least two rows; At least one electrolytic cell is disposed in any of the sub-chambers.

4. The electrolysis hydrogen production system according to claim 3, characterized in that: The first box body also has a second accommodating area, and along the length direction of the first box body, the second accommodating area is separated from the first accommodating area by the spacing member; The first control device is disposed in the second accommodating area; The first control device includes a rectifier cabinet and a control box, and the control box is electrically connected to the rectifier cabinet.

5. The electrolysis hydrogen production system according to claim 1, characterized in that: The second box body is detachably connected to the top surface of the first box body and is consistent with the extension direction of the first box body.

6. The electrolysis hydrogen production system according to claim 5, characterized in that: The gas-liquid separation device comprises: a liquid separation tank connected to the bottom surface of the second housing; a drainer connected to a bottom surface of the second housing; A secondary liquid separator, the secondary liquid separator is located on one side of the liquid separator tank; a scrubber, the scrubber being located on one side of the secondary liquid separator; and A cooler is located above the liquid separation tank.

7. The electrolysis hydrogen production system according to claim 6, characterized in that: The liquid separator tank comprises a hydrogen side liquid separator tank and an oxygen side liquid separator tank, and the hydrogen side liquid separator tank and the oxygen side liquid separator tank are spaced apart along the length direction of the second box body; The drainer includes a hydrogen side drainer and an oxygen side drainer, the drainer is located between the hydrogen side liquid separation tank and the oxygen side liquid separation tank, and the hydrogen side drainer and the oxygen side drainer are spaced apart along the length direction of the second box; The secondary liquid separator is located between the hydrogen side liquid separator and the oxygen side liquid separator, and includes a hydrogen side secondary liquid separator and an oxygen side secondary liquid separator, and the hydrogen side secondary liquid separator and the oxygen side secondary liquid separator are spaced apart along the length direction of the second box.

8. The electrolysis hydrogen production system according to claim 7, characterized in that: The secondary liquid separator protrudes upward from the drainer, and the drainer is located between the hydrogen-side secondary liquid separator and the oxygen-side secondary liquid separator; The scrubber protrudes upward from the liquid separator tank, and the scrubber includes a hydrogen side scrubber and an oxygen side scrubber, the hydrogen side scrubber and the oxygen side scrubber are spaced apart along the length direction of the second box, and the secondary liquid separator is located between the hydrogen side scrubber and the oxygen side scrubber; The cooler includes a hydrogen side cooler and an oxygen side cooler, and the hydrogen side cooler is spaced apart from the oxygen side cooler along a length direction of the second box.

9. The hydrogen production system by electrolysis according to any one of claims 1 to 8, characterized in that: The electrolytic hydrogen production system further includes an air conditioning device, which is installed inside the first box and the second box respectively.

10. The hydrogen production system by electrolysis according to any one of claims 1 to 8, characterized in that: The electrolytic hydrogen production system also includes a purification device and a hydrogen storage tank, wherein the purification device and the hydrogen storage tank are both located outside the first box body and the second box body, and the purification device and the hydrogen storage tank are both electrically connected to the first control device.

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