Water electrolysis hydrogen production and hydrogenation integrated device

Abstract

The utility model belongs to the technical field of water electrolysis hydrogen production and hydrogenation, and discloses a water electrolysis hydrogen production and hydrogenation integrated device which comprises a hydrogen production device, a compression device, a sequence control device, a hydrogen storage device and a hydrogenation device which are arranged in a box body, the hydrogen output end of the hydrogen production device is connected with the hydrogen input end of the compression device, the compression device is connected with a hydrogen conveying device located outside the box body, and the hydrogen output end of the compression device is connected with the hydrogen input end of the sequence control device. The hydrogen output end of the sequence control device is respectively connected with the hydrogen input end of the hydrogen storage device and the hydrogen input end of the hydrogenation device, and the hydrogen output end of the hydrogenation device is connected to a hydrogenation vehicle located outside the box body; according to the utility model, the compactness and the integration level of the device can be improved, and the system efficiency and the hydrogen energy production capacity are improved.

Description

Technical Field

[0001] This utility model relates to the field of water electrolysis hydrogen production and hydrogen refining technology, specifically to an integrated water electrolysis hydrogen production and hydrogen refining device. Background Technology

[0002] Hydrogen energy, as a widely available, green, and low-carbon secondary energy source, is a crucial support for large-scale, deep decarbonization in transportation, industrial production, and construction. It is also an ideal interconnecting medium for promoting the clean and efficient utilization of fossil fuels and supporting the large-scale development of new energy sources. The hydrogen energy industry is a strategic emerging industry and a future direction for industrial development. Supporting and promoting its development can effectively support the achievement of carbon peaking and carbon neutrality goals, creating a new green economic growth engine. Simultaneously, the hydrogen energy industry facilitates deep decarbonization of production processes, extends the industrial chain, enhances the value chain, and integrates the supply chain, holding significant strategic importance for optimizing energy consumption structure and transforming and upgrading industrial structure.

[0003] Hydrogen production through water electrolysis is crucial for the future use of clean and sustainable energy. It involves using direct current to electrochemically dissociate water molecules into hydrogen and oxygen, which are then released at the cathode and anode, respectively. The modular nature of water electrolysis systems makes them ideal for centralized hydrogen production. Therefore, hydrogen production through water electrolysis will be integral to the entire process of hydrogen energy development and is an indispensable component in building a "hydrogen society."

[0004] Given the rapid development of China's renewable energy hydrogen production industry, the mismatch between hydrogen sources and hydrogen energy application scenarios is a limiting factor, and achieving the joint implementation of hydrogen production and refueling is the key. However, existing water electrolysis hydrogen production technology has limited capacity and production capacity, making it difficult to meet the needs of large-scale hydrogen energy applications, and its efficiency is low. Furthermore, domestic hydrogen production typically uses water electrolysis, which generates a large amount of coolant that, if not utilized, becomes waste liquid, resulting in water resource waste. To further address the water resource waste and low efficiency issues in water electrolysis hydrogen production and refueling, it is urgent to optimize water electrolysis hydrogen production and refueling equipment to make it more suitable for engineering needs and industrial development. Utility Model Content

[0005] The purpose of this invention is to provide an integrated electrolytic hydrogen production and refueling device to overcome the problems existing in the prior art. The device is skid-mounted, which improves the compactness and integration of the integrated water electrolytic hydrogen production and refueling device, enhances system efficiency and hydrogen production capacity, maximizes the utilization of land resources, and saves land use quotas and initial investment. By treating the coolant with a water treatment device and connecting it to the coolant input terminals of the primary and secondary compression units, the cooling water supply needs of the primary and secondary compression units are met, allowing the coolant to be reused and avoiding water waste.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An integrated water electrolysis hydrogen production and hydrogen refueling device includes a hydrogen production unit, a compression unit, a sequence control unit, a hydrogen storage unit, a hydrogen refueling unit, and a housing;

[0008] The hydrogen production device, compression device, sequence control device, hydrogen storage device, and hydrogen refueling device are installed inside the housing. The hydrogen production device is connected to a power source. The coolant input of the hydrogen production device is connected to the outside of the housing. The hydrogen output of the hydrogen production device is connected to the hydrogen input of the compression device. The compression device is connected to a hydrogen transport device located outside the housing. The hydrogen output of the compression device is connected to the hydrogen input of the sequence control device. The hydrogen output of the sequence control device is connected to the hydrogen input of the hydrogen storage device and the hydrogen input of the hydrogen refueling device, respectively. The hydrogen output of the hydrogen refueling device is connected to a hydrogen refueling vehicle located outside the housing.

[0009] Furthermore, the coolant output end of the hydrogen production device is also connected to a water treatment device, which is located inside the housing.

[0010] Furthermore, the coolant output end of the water treatment device is connected to the coolant input end of the compression device;

[0011] Furthermore, the compression device includes a primary compression device and a secondary compression device;

[0012] The hydrogen output terminal of the hydrogen production device is connected to the hydrogen input terminal of the primary compression device, the hydrogen output terminal of the primary compression device is connected to the hydrogen input terminal of the secondary compression device, and the hydrogen output terminal of the secondary compression device is connected to the hydrogen input terminal of the sequential control device; the coolant output terminal of the water treatment device is connected to the coolant input terminals of the primary compression device and the secondary compression device respectively.

[0013] Furthermore, the hydrogen output end of the primary compression unit and the hydrogen input end of the secondary compression unit are connected to the hydrogen transport device;

[0014] Furthermore, the hydrogen output end of the primary compression unit and the hydrogen input end of the secondary compression unit are connected to the hydrogen transport device via a transmission pipeline;

[0015] Furthermore, the hydrogen pressure at the hydrogen output end of the primary compression device is ≤20 MPa;

[0016] Furthermore, the hydrogen pressure at the hydrogen output end of the secondary compression device is ≤45 MPa;

[0017] Furthermore, the hydrogen transport device includes, but is not limited to, hydrogen tube trailers and hydrogen cylinder trucks;

[0018] Furthermore, the power source is a DC power source.

[0019] The above technical solution has the following advantages or beneficial effects:

[0020] This utility model provides an integrated electrolytic hydrogen production and refueling device. By installing the hydrogen production device, compression device, sequence control device, hydrogen storage device, and hydrogen refueling device inside a housing, forming a single skid, it can be easily moved or transported as a whole. At the same time, by isolating the housing from the outside world, the potential for accidents can be controlled within the housing, improving safety performance. It can simultaneously perform functions such as water electrolysis hydrogen production, purification, compression, hydrogen refueling, hydrogen storage, and water treatment, improving the compactness and integration of the integrated water electrolysis hydrogen production and refueling device, enhancing system efficiency and hydrogen energy production capacity, making the device more suitable for engineering needs and industrial development. In addition, it can also meet the hydrogen transportation needs of hydrogen refueling vehicles and hydrogen tube trailers.

[0021] Furthermore, under the premise of ensuring stable production, there is no need to set up a separate external water source. The device is directly connected to a water treatment device to achieve the reuse of coolant. The water source comes from the coolant of the hydrogen production unit, thus avoiding the waste of water resources in the integrated water electrolysis hydrogen production and hydrogen refueling unit. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an integrated electrolytic hydrogen production and hydrogenation device according to the present invention;

[0023] In the diagram, 1-hydrogen production unit; 2-first-stage compression unit; 3-second-stage compression unit; 4-sequence control unit; 5-hydrogen storage unit; 6-hydrogen refueling unit; 7-water treatment unit; 8-tank; 9-hydrogen transportation unit. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0025] In the description of this utility model, 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., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] See Figure 1 This utility model provides an integrated water electrolysis hydrogen production and hydrogen refueling device, including a hydrogen production device 1, a compression device, a sequence control device 4, a hydrogen storage device 5, a hydrogen refueling device 6, a water treatment device 7, and a housing 8; the compression device includes a primary compression device 2 and a secondary compression device 3.

[0031] The hydrogen production unit 1, compression unit, sequence control unit 4, hydrogen storage unit 5, hydrogen refueling unit 6, and water treatment unit 7 are installed inside the enclosure 8, forming a single skid for easy relocation or transportation. It possesses functions including water electrolysis for hydrogen production, purification, compression, hydrogen refueling, hydrogen storage, and water treatment. Simultaneously, the enclosure isolates it from the outside environment, confining potential hazards within the enclosure and enhancing safety. The hydrogen production unit 1 is connected to a DC power supply. Its coolant inlet is connected to the outside of the enclosure 8. The hydrogen output of the hydrogen production unit 1 is connected to the hydrogen input of the first-stage compression unit 2, and the hydrogen output of the first-stage compression unit 2 is connected to the hydrogen input of the second-stage compression unit 3. The hydrogen pressure at the hydrogen output of the first-stage compression unit 2 is ≤20 kJ / L. The coolant output of hydrogen production unit 1 is connected to the coolant input of water treatment unit 7. After treatment to meet the standards, the coolant output of water treatment unit 7 is connected to the coolant input of primary compression unit 2 and secondary compression unit 3 respectively, which can meet the needs of water resource reuse and cooling water supply for primary compression unit 2 and secondary compression unit 3. The hydrogen output of primary compression unit 2 and the hydrogen input of secondary compression unit 3 are connected to hydrogen transportation unit 9 outside the box 8 through a transmission pipeline. The hydrogen output of secondary compression unit 3 is connected to the hydrogen input of sequence control device 4. The hydrogen pressure of hydrogen output of secondary compression unit 3 is ≤45 MPa. The hydrogen output of sequence control device 4 is connected to the hydrogen input of hydrogen storage unit 5 and hydrogen input of hydrogen refueling unit 6 respectively. The hydrogen output of hydrogen refueling unit 6 is connected to hydrogen refueling vehicle outside the box 8.

[0032] Preferably, hydrogen production device 1 can also be called a purification device;

[0033] Preferably, the sequence control device 4 is a sequence control disk;

[0034] Preferably, the hydrogen transport device 9 includes, but is not limited to, a hydrogen long-tube trailer or a hydrogen cylinder vehicle.

[0035] The structure and working principle of this utility model will be further explained below:

[0036] The purpose of this invention is to provide an integrated water electrolysis hydrogen production and refueling device. When the hydrogen production device 1 is connected to a DC power supply and the electrolysis current rises to a certain value, the water in the hydrogen production device 1 is electrolyzed into hydrogen and oxygen. The hydrogen from the hydrogen production device 1 is pressurized by a primary compression device 2 and a secondary compression device 3. The hydrogen pressure at the hydrogen output end of the primary compression device 2 does not exceed 20 MPa, meeting the hydrogen transportation needs of hydrogen transport devices such as hydrogen tube trailers. The hydrogen pressure at the hydrogen output end of the secondary compression device 3 does not exceed 45 MPa. After passing through a sequence control device 4, the hydrogen is sent to a hydrogen storage device 5 and a hydrogen refueling device 6 to meet the hydrogen refueling needs of hydrogen refueling vehicles. Current hydrogen production and refueling... Hydrogen integrated devices typically combine hydrogen production, compression, and refueling units, and can only refuel hydrogen-powered vehicles, not hydrogen-powered long-tube trailers. This invention can simultaneously meet the hydrogen transportation needs of both hydrogen-powered vehicles and hydrogen-powered long-tube trailers. The coolant outlet of the hydrogen production unit 1 is connected to the coolant inlet of the water treatment unit 7. After treatment to meet standards, the coolant is connected to the coolant inlets of the primary compression unit 2 and the secondary compression unit 3, respectively, to meet the requirements for water reuse. This avoids water waste in the water electrolysis hydrogen production and refueling integrated device and meets the cooling water supply needs of the primary compression unit 2 and the secondary compression unit 3.

[0037] This utility model provides an integrated electrolytic hydrogen production and refueling device. By installing the hydrogen production device 1, compression device, sequence control device 4, hydrogen storage device 5, and hydrogen refueling device 6 inside a housing 8, forming a single skid, it can be easily moved or transported as a whole. At the same time, by isolating the housing 8 from the outside world, the potential for accidents can be controlled within the housing 8, improving safety performance. It can simultaneously perform functions such as water electrolysis hydrogen production, purification, compression, hydrogen refueling, hydrogen storage, and water treatment, improving the compactness and integration of the integrated water electrolysis hydrogen production and refueling device, enhancing system efficiency and hydrogen production capacity, and making the device more suitable for engineering needs and industrial development.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications made to the technical solutions based on the technical concept proposed by this utility model shall fall within the scope of protection of the claims of this utility model.

Claims

1. A device for integrated hydrogen production by water electrolysis and hydrogenation, characterized in that, Hydrogen production device (1), compression device, sequential control device (4), hydrogen storage device (5), hydrogenation device (6) and box (8) are included; The hydrogen production device (1), compression device, sequential control device (4), hydrogen storage device (5) and hydrogenation device (6) are installed in the inside of the box (8), the hydrogen production device (1) is connected with the power supply, the cooling liquid input end of the hydrogen production device (1) is connected to the outside of the box (8), the hydrogen output end of the hydrogen production device (1) is connected with the hydrogen input end of the compression device, the compression device is connected with the hydrogen transport device (9) located outside the box (8), the hydrogen output end of the compression device is connected with the hydrogen input end of the sequential control device (4), the hydrogen output end of the sequential control device (4) is connected with the hydrogen input end of the hydrogen storage device (5) and the hydrogen input end of the hydrogenation device (6) respectively, the hydrogen output end of the hydrogenation device (6) is connected to the hydrogenation vehicle located outside the box (8).

2. The integrated device of claim 1, wherein the integrated device is configured to produce hydrogen from water electrolysis and to hydrogenate the hydrocarbon feedstock. The cooling liquid output end of the hydrogen production device (1) is also connected with the water treatment device (7), and the water treatment device (7) is located in the inside of the box (8).

3. The integrated device of claim 2, wherein the hydrogen produced by the water electrolysis is used to hydrogenate the hydrodeoxygenated product. The cooling liquid output end of the water treatment device (7) is connected with the cooling liquid input end of the compression device. ​ 4. The integrated device of claim 3, wherein the hydrogen storage material is a metal hydride. The compression device includes primary compression device (2) and secondary compression device (3); The hydrogen output end of the hydrogen production device (1) is connected with the hydrogen input end of the primary compression device (2), the hydrogen output end of the primary compression device (2) is connected with the hydrogen input end of the secondary compression device (3), the hydrogen output end of the secondary compression device (3) is connected with the hydrogen input end of the sequential control device (4); The cooling liquid output end of the water treatment device (7) is connected with the cooling liquid input end of the primary compression device (2) and the secondary compression device (3) respectively.

5. The integrated device of claim 4, wherein the hydrogen storage material is a metal hydride. The hydrogen output end of the primary compression device (2) is connected with the hydrogen input end of the secondary compression device (3) and the hydrogen transport device (9).

6. The integrated device of claim 5, wherein the hydrogen storage material is a metal hydride. The hydrogen output end of the primary compression device (2) is connected with the hydrogen input end of the secondary compression device (3) through the transmission pipeline and the hydrogen transport device (9).

7. The integrated device of claim 4, wherein the integrated device is characterized by: The hydrogen pressure of the hydrogen output end of the primary compression device (2) is ≤20 MPa.

8. The integrated device of claim 4, wherein the integrated device is characterized by: The hydrogen pressure of the hydrogen output end of the secondary compression device (3) is ≤45 MPa. 9.The water electrolysis hydrogen production and hydrogenation integrated device according to claim 1, characterized in that, The hydrogen transport device (9) includes but is not limited to hydrogen long pipe trailer, hydrogen bottle group vehicle.

10. The integrated device of claim 1, wherein, The power supply is a direct current power supply.

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