Hydrogen supply system skin of fuel cell locomotive

Abstract

The utility model discloses a hydrogen supply system skin of a fuel cell locomotive, which relates to the technical field of new energy fuel cell hydrogen supply systems, and comprises a locomotive appearance surface side skin, a locomotive driving direction side skin, a top cover skin assembly and a hydrogen supply system main body frame, the locomotive appearance surface side skin and the locomotive driving direction side skin are installed on the two sides of the hydrogen supply system body respectively, the locomotive appearance surface side skin and the locomotive driving direction side skin surround to form a space for installing a hydrogen supply system body frame, and the locomotive appearance surface side skin and the locomotive driving direction side skin are perpendicular to each other. The locomotive appearance face side skin and the locomotive running direction side skin are welded and matched, and the top cover skin assembly is installed on the hydrogen supply system main body frame and used for accelerating gas flow of a hydrogen storage cavity in the skin. Splashing impact of foreign matter such as pebbles on the rail is effectively prevented, the risk of leakage of the hydrogen supply system due to external impact is reduced, air fluidity is improved once leakage occurs, and potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of hydrogen supply systems of new energy fuel cells, and in particular to a hydrogen supply system skin of a fuel cell locomotive. BACKGROUND

[0002] Hydrogen energy is a clean and renewable energy source that can replace traditional fossil fuels and help reduce environmental pollution and climate change. The demand for fuel cell vehicles and locomotives has been growing rapidly in the transportation sector, which is an important application scenario for hydrogen energy, under the guidance of the carbon peak and carbon neutral goals.

[0003] If a fuel cell locomotive uses hydrogen energy as a power source, it requires a large amount of hydrogen, and the hydrogen supply system needs to be equipped with a large number of hydrogen storage cylinders, which has higher requirements for the protection and hydrogen leakage of the hydrogen supply system. Although the hydrogen supply system skin of the fuel cell locomotive can provide certain physical protection, its protection effect is limited when facing high-speed moving stones and other foreign objects, which can easily cause hydrogen leakage. Simple ventilation devices cannot effectively control the flow of hydrogen inside the hydrogen supply system. Once a leak occurs, hydrogen may rapidly accumulate in a closed space, creating an environment that is prone to fire and explosion, increasing the risk of safety hazards. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the protection effect when high-speed moving stones and other foreign objects, which can easily cause hydrogen leakage, and to prevent rapid accumulation that can cause safety hazards when a leak occurs, the application provides a hydrogen supply system skin for a fuel cell locomotive.

[0005] The hydrogen supply system skin for a fuel cell locomotive provided by the application adopts the following technical solution:

[0006] A hydrogen supply system skin for a fuel cell locomotive includes a locomotive appearance side skin, a locomotive running direction side skin, a top cover skin assembly, and a hydrogen supply system main body frame. The locomotive appearance side skin and the locomotive running direction side skin are installed on both sides of the hydrogen supply system main body. The locomotive appearance side skin and the locomotive running direction side skin form a space around the hydrogen supply system main body frame. The locomotive appearance side skin and the locomotive running direction side skin are perpendicular to each other. The locomotive appearance side skin and the locomotive running direction side skin are welded together. The top cover skin assembly is installed on the hydrogen supply system main body frame to accelerate the flow of gas in the hydrogen storage cavity.

[0007] By adopting the technical scheme, the locomotive appearance surface side skin and the locomotive running direction side skin surround the space in which the hydrogen supply system main frame is installed, the top cover skin assembly is installed on the hydrogen supply system main frame, the hydrogen supply system is effectively protected from external foreign matters such as stones and the like, the stability and durability of the hydrogen supply system are ensured, the top cover skin assembly is installed on the top of the hydrogen supply system main frame, the gas flowability of the hydrogen storage cavity in the skin is increased, and the effect of reducing the safety risk of hydrogen leakage of the system is achieved.

[0008] Optionally, the top cover skin assembly comprises a top cover main frame and an explosion-proof fan assembly, the top cover main frame is installed on the hydrogen supply system main frame, and the explosion-proof fan assembly is installed on the top cover main frame.

[0009] By adopting the technical scheme, the gas flowability of the hydrogen storage cavity in the skin is effectively increased, the gas flow air duct that inhales from the side and discharges from the top is formed, the hydrogen gas is prevented from gathering in the skin assembly cavity to form a dangerous hydrogen atmosphere when the hydrogen supply system leaks, and the safety risk is significantly reduced. The explosion-proof fan assembly ensures the rapid response and efficient operation of the fan in an emergency, and further improves the use safety of the hydrogen supply system.

[0010] Optionally, the side skin of the locomotive appearance surface is provided with a louvered exhaust hole.

[0011] By adopting the technical scheme, the louvered exhaust hole provided on the side skin of the locomotive appearance surface can effectively increase the gas flowability of the hydrogen storage cavity in the skin, form the gas flow air duct that inhales from the side and discharges from the top, prevent the hydrogen gas from gathering in the skin assembly cavity when the hydrogen supply system leaks, reduce the safety risk of hydrogen leakage, and further improve the ventilation performance of the hydrogen supply system, further improve the operation stability and safety of the system.

[0012] Optionally, the top cover main frame is provided with a mounting hole, the explosion-proof fan assembly is further provided with a flange plate fixing base, and the flange plate fixing base and the mounting hole are matched.

[0013] By adopting the technical scheme, it is ensured that the explosion-proof fan assembly can be firmly and reliably installed on the top cover main frame, the stability and safety of the explosion-proof fan are improved, the safety hidden danger caused by loosening or falling is avoided, the system is facilitated to be disassembled and maintained, and the operability of the system is improved.

[0014] Optionally, the top cover main frame is further provided with a handle, and the handle and the top cover main frame are integrally formed.

[0015] By adopting the technical scheme, the staff can easily lift the top cover skin assembly during maintenance or replacement, and the operation convenience is improved. The integrally formed structure increases the strength, ensures that the handle is not easily damaged during long-term use, and further improves the reliability and safety of the hydrogen supply system.

[0016] Optionally, the cross section of the top cover body frame is trapezoidal.

[0017] By adopting the technical scheme, the cross section of the top cover body frame is trapezoidal, so that the top cover skin assembly has better structural stability and mechanical properties, can more effectively resist external impact force, and also helps to optimize the internal space layout, further improving the overall safety and reliability of the hydrogen supply system.

[0018] Optionally, the locomotive appearance surface skin and the hydrogen supply system body frame are fastened by bolts.

[0019] By adopting the technical scheme, the locomotive appearance surface skin and the hydrogen supply system body frame are fastened by bolts, so that the skin structure is more stable and reliable, easy to install and maintain, and the protection capability of the hydrogen supply system is improved, the risk of hydrogen supply system leakage caused by foreign matter impact is reduced, and the safety and stability of the overall system are improved.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. By setting the louver exhaust hole on the locomotive appearance surface side skin and assembling the explosion-proof fan on the top cover skin assembly, an effective gas flow air duct is formed, the flowability of hydrogen in the skin inner cavity is improved, the risk of hydrogen accumulation after leakage is reduced, and the safety of the hydrogen supply system is enhanced;

[0022] 2. The skin assembly provides effective protection against impact of foreign matter such as stones on the track, reduces the probability of leakage of the hydrogen supply system due to external impact, and further improves the overall safety of the hydrogen supply system. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 is a total assembly diagram of the hydrogen supply system shown in the present application.

[0025] Figure 2 is an explosion diagram of the hydrogen supply system assembly shown in the present application.

[0026] Figure 3 is an explosion view of a top cover assembly.

[0027] Fig. 10 is an explosion view of a top cover assembly. DETAILED DESCRIPTION

[0028] The following will be described in detail below with reference to the accompanying drawings. Figures 1-3 The present application will be further described in detail.

[0029] The present application discloses a hydrogen supply system skin of a fuel cell locomotive.

[0030] Referring to Figure 1 and Figure 2 , it comprises a locomotive appearance side skin 200, a locomotive driving direction side skin 500, a top cover skin assembly 100 and a hydrogen supply system body frame 600. The locomotive appearance side skin 200 and the locomotive driving direction side skin 500 are symmetrically installed on both sides of the hydrogen supply system body respectively. The locomotive driving direction side skin 500 and the locomotive appearance side skin 200 are both provided with two pieces, which provide protection against the impact of foreign objects such as stones on the track, effectively increase the gas flowability of the hydrogen storage cavity in the skin, and reduce the safety risk of hydrogen leakage. The locomotive appearance side skin 200 and the locomotive driving direction side skin 500 surround a space for installing the hydrogen supply system body frame 600. The locomotive appearance side skin 200 and the locomotive driving direction side skin 500 are perpendicular to each other. The locomotive appearance skin and the hydrogen supply system body frame 600 are fastened by bolts. The bolt fastening connection is simple and reliable, and is convenient for installation and disassembly. The locomotive appearance side skin 200 and the locomotive driving direction side skin 500 are welded together. The top cover skin assembly 100 is installed on the top of the hydrogen supply system body frame 600. The skin assembly is connected by welding, which ensures the firmness and sealing of the connection part to prevent hydrogen leakage.

[0031] Referring to Figure 3 , the top cover skin assembly 100 comprises a top cover body frame 10 and a blast fan assembly 20. The top cover body frame 10 is connected and fixed with the hydrogen supply system body frame 600 by bolts, which ensures the stability and reliability of the connection. The blast fan assembly 20 is installed on the top cover body frame 10, which is used to promote the circulation of hydrogen in the skin and reduce the risk of hydrogen accumulation in the closed space. The blast fan assembly 20 comprises fan blades and a motor. The fan blades are made of lightweight aluminum alloy material, which has good balance and durability. The motor is high-efficiency and energy-saving, which ensures stable operation for a long time.

[0032] Referring to Figure 3As shown, the top cover body frame 10 is provided with mounting holes, and the explosion-proof fan assembly 20 is also provided with a flange plate fixing base which is matched with the mounting holes. The flange plate fixing base is made of stainless steel material, has good corrosion resistance and aging resistance, and ensures the reliability of long-term use. The top cover body frame 10 is also provided with a handle which is integrally formed with the top cover body frame 10, facilitating disassembly and maintenance.

[0033] Referring to Figure 2 As shown, the louvered exhaust holes are provided on the locomotive appearance surface side skin 200, effectively guiding the flow of hydrogen from the inside to the outside of the skin, forming a natural ventilation effect, reducing the accumulation of hydrogen in the skin. The size and number of the louvered exhaust holes can be adjusted according to actual needs, for example, in a high humidity environment, the number of louvered exhaust holes can be appropriately increased to improve ventilation efficiency. The opening angle of the louvered exhaust holes can also be adjusted to maintain the best ventilation effect under different working conditions.

[0034] Referring to Figure 2 As shown, the cross section of the top cover body frame 10 is trapezoidal, which can effectively disperse the pressure on the top cover skin, improve its pressure resistance and stability, and the bottom width of the trapezoidal cross section is greater than the top width, which is beneficial to improve the support area of the top cover skin, reduce local stress concentration, and prolong the service life. The trapezoidal cross section can also increase the surface area of the top cover skin, improve the heat dissipation effect, and reduce the influence of temperature on hydrogen storage.

[0035] The implementation principle of the hydrogen supply system skin of the fuel cell locomotive according to the embodiment of the present application is as follows: the hydrogen supply system skin is composed of the locomotive appearance surface side skin 200, the locomotive running direction side skin 500, the top cover skin assembly 100 and the hydrogen supply system body frame 600, realizing the overall protection of the hydrogen supply system. The welding connection mode of the locomotive appearance surface side skin 200 and the locomotive running direction side skin 500 ensures the integrity and sealing of the skin, effectively preventing hydrogen leakage; the explosion-proof fan assembly 20 and the louvered exhaust hole on the top cover skin assembly 100 form an effective gas flow air duct, promoting the circulation of hydrogen and reducing the risk of hydrogen accumulation in the skin; the trapezoidal cross section of the top cover body frame 10 and the integrally formed handle improve the pressure resistance of the top cover skin and the maintenance convenience.

[0036] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Unless otherwise defined, the terms "first", "second" or "third" and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. The terms "one", "another", "an" or "some" as well as similar referents in the context of describing the specification and claims are to be construed to be open-ended, i.e., to cover both singular and plural referents unless otherwise indicated. The terms "including", "containing" or "comprising" and the like are not intended to exclude other integers or steps, but to "include" or "comprise" other integers or steps unless otherwise indicated. The terms "connected", "coupled" or "pathway" are not restricted to direct connections, couplings or pathways but include indirect connections, couplings or pathways unless otherwise indicated. The terms "above", "below", "left", "right" and the like are only used to express relative positions such that if an absolute position of a described object is changed, the relative positions can also be changed accordingly.

[0037] The above are only preferred embodiments of the present application, not intended to limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A hydrogen supply system skin for a fuel cell locomotive, characterized in that: The system includes a locomotive exterior side skin (200), a locomotive travel direction side skin (500), a top cover skin assembly (100), and a hydrogen supply system main frame (600). The locomotive exterior side skin (200) and the locomotive travel direction side skin (500) are respectively installed on both sides of the main body of the hydrogen supply system. The locomotive exterior side skin (200) and the locomotive travel direction side skin (500) surround each other to form a space for installing the main frame of the hydrogen supply system (600). The locomotive exterior side skin (200) and the locomotive travel direction side skin (500) are perpendicular to each other. The locomotive exterior side skin (200) and the locomotive travel direction side skin (500) are welded together. The top cover skin assembly (100) is installed on the main frame of the hydrogen supply system (600) to accelerate the gas flow in the hydrogen storage cavity inside the skin.

2. The hydrogen supply system skin of a fuel cell locomotive according to claim 1, characterized in that: The top cover skin assembly (100) includes a top cover main frame (10) and an explosion-proof fan assembly (20). The top cover main frame (10) is mounted on the hydrogen supply system main frame (600), and the explosion-proof fan assembly (20) is mounted on the top cover main frame (10).

3. The hydrogen supply system skin of a fuel cell locomotive according to claim 2, characterized in that: The locomotive's exterior side skin (200) is provided with louvered exhaust vents.

4. The hydrogen supply system skin of a fuel cell locomotive according to claim 2, characterized in that: The main frame (10) of the top cover is provided with mounting holes, and the explosion-proof fan assembly (20) is also provided with a flange fixing base, which matches the mounting holes.

5. The hydrogen supply system skin of a fuel cell locomotive according to claim 2, characterized in that: A handle is also installed on the main frame (10) of the top cover, and the handle and the main frame (10) of the top cover are integrally formed.

6. The hydrogen supply system skin of a fuel cell locomotive according to claim 2, characterized in that: The cross-section of the main frame (10) of the top cover is trapezoidal.

7. The hydrogen supply system skin of a fuel cell locomotive according to claim 1, characterized in that: The locomotive's exterior skin and the main frame (600) of the hydrogen supply system are fastened with bolts.

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