Skin structure in a vehicle-mounted hydrogen supply system with thermal pressure relief device

Abstract

The utility model discloses a skin structure in vehicle -mounted hydrogen supply system with heat pressure relief device, including hydrogen supply system, hydrogen supply system includes main body frame, sets up in a plurality of hydrogen storage bottles of main body frame and is connected with the heat pressure relief device of hydrogen storage bottle gas outlet, hydrogen supply system is equipped with skin component, and skin component includes the first skin of setting along the outside surface of main body frame, second skin, third skin and fourth skin and sets up the fifth skin at the top of main body frame, is equipped with a plurality of discharge ports with heat pressure relief device connection on the fifth skin, is equipped with the end cap of swing joint at the discharge port place, the utility model discloses the skin structure of existing vehicle -mounted hydrogen supply system is optimized design processing, can provide the protection effect of the foreign matter such as stone splashing impact in the driving process, reduces the security risk of hydrogen leakage of system, can also provide dustproof waterproof protection for TPRD discharge port.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen energy application equipment, and in particular to a skin structure in a vehicle-mounted hydrogen supply system with a thermal depressurization device. Background Technology

[0002] Hydrogen energy is a clean and renewable energy source that can be used to replace traditional fossil fuels, helping to reduce environmental pollution and climate change. As a key application scenario for hydrogen energy, the transportation sector has seen rapid growth in demand for fuel cell vehicles and locomotives, driven by the goals of carbon peaking and carbon neutrality.

[0003] If fuel cell vehicles / locomotives use hydrogen as their power source, the hydrogen supply system needs to be equipped with different specifications and numbers of hydrogen storage cylinders depending on their hydrogen demand. The safe use of hydrogen storage cylinders is particularly important for the safety of the entire vehicle system.

[0004] To ensure the safe use of hydrogen storage cylinders, the industry mandates that the cylinder valves be equipped with TPRD (thermal pressure relief device). When the temperature inside or outside the cylinder reaches 110℃±5℃, the device automatically releases the gas inside the cylinder to prevent accidents such as deflagration and explosion caused by overheating and overpressure of the hydrogen in the storage cylinder.

[0005] Hydrogen supply systems typically connect the TPRD ports on each gas cylinder in a series-parallel configuration using connectors and pipelines, and lead the combined exhaust outlet to the highest point of the vehicle. To ensure that the exhaust outlet is not blocked by water or debris, affecting emission safety, dustproof and waterproof protection measures are usually required.

[0006] In addition, in order to protect the gas cylinders and pipelines from impacts from splashing foreign objects, and to allow for rapid dissipation in the event of a hydrogen leak in the system to prevent hydrogen accumulation, the hydrogen supply system frame must be equipped with a skin that serves both protective and hydrogen dissipation functions. Utility Model Content

[0007] The purpose of this invention is to provide a skin structure for an on-board hydrogen supply system with a thermal depressurization device to meet the aforementioned requirements in the background art.

[0008] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0009] A skin structure for an on-board hydrogen supply system with a thermal pressure relief device includes a hydrogen supply system, the hydrogen supply system including a main frame, a plurality of hydrogen storage cylinders disposed within the main frame, and a thermal pressure relief device connected to the outlet of the hydrogen storage cylinders.

[0010] The hydrogen supply system is provided with a skin assembly, which includes a first skin, a second skin, a third skin and a fourth skin arranged along the outer side of the main frame, and a fifth skin arranged at the top of the main frame.

[0011] The fifth skin is provided with several discharge ports connected to the heat relief device, and an end cap is provided at the discharge port.

[0012] Furthermore, the main frame includes several support rods, which are connected to each other to form a frame structure, and the interior of the frame structure is used to place hydrogen storage cylinders.

[0013] Furthermore, the thermal relief device includes several discharge pipes and pipe fittings for connecting the discharge pipes. The inlet of the discharge pipe is connected to the thermal relief port of the hydrogen storage cylinder, and the outlet of the discharge pipe extends to the top of the main frame.

[0014] Furthermore, the outlet of the discharge pipeline is connected to the discharge port of the fifth skin, and the outlet of the discharge pipeline includes a first discharge port, a second discharge port, and an unloading port.

[0015] Furthermore, the end cap is movably connected to the discharge port via a rotating connector, which includes a fixed block and a rotating block;

[0016] The end face of the fixing block is provided with a first connecting hole, and it is fixedly installed on the side of the discharge port through the first connecting hole;

[0017] The rotating block is movably connected to the fixed block via a rotating shaft. A second connecting hole is provided on the end face of the rotating block, and it is fixedly connected to the end cap via the second connecting hole.

[0018] In summary, this utility model has the following beneficial effects:

[0019] By optimizing the skin structure of existing vehicle-mounted hydrogen supply systems, it can not only provide protection against the impact of flying foreign objects such as stones during driving, reducing the safety risk of hydrogen leakage, but also provide dust and water protection for the TPRD emission outlet. Attached Figure Description

[0020] Figure 1 This is an assembly diagram of the skin structure in the vehicle-mounted hydrogen supply system described in this utility model.

[0021] Figure 2 This is an exploded view of the skin structure in the on-board hydrogen supply system described in this utility model.

[0022] Figure 3 This is a schematic diagram of the internal structure of the vehicle-mounted hydrogen supply system described in this utility model.

[0023] Figure 4 This is a schematic diagram of the end cap in the open state as described in this utility model.

[0024] Figure 5This is a schematic diagram of the end cap in the closed state as described in this utility model.

[0025] Figure 6 This is a schematic diagram of the rotating connector described in this utility model. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with the illustrations and specific embodiments.

[0027] like Figures 1 to 6 As shown, the present invention proposes a skin structure for a vehicle-mounted hydrogen supply system with a heat relief device, including a hydrogen supply system 1. The hydrogen supply system 1 includes a main frame 2, a plurality of hydrogen storage cylinders 3 disposed within the main frame 2, and a heat relief device 4 connected to the outlet of the hydrogen storage cylinders 3.

[0028] The hydrogen supply system 1 is provided with a skin assembly, which includes a first skin 5, a second skin 6, a third skin 7 and a fourth skin 12 arranged along the outer side of the main frame 2, and a fifth skin 8 arranged at the top of the main frame 2.

[0029] The fifth skin 8 is provided with several discharge ports 9 connected to the heat relief device 4, and an end cap 10 is provided at the discharge port 9.

[0030] The main frame 2 includes several support rods 21, which are connected to each other to form a frame structure. The interior of the frame structure is used to place the hydrogen storage bottle 3.

[0031] The thermal pressure relief device 4 includes several discharge pipes 41 and pipe joints 42 for connecting the discharge pipes 41. The inlet of the discharge pipe 41 is connected to the thermal pressure relief port 31 of the hydrogen storage cylinder 3, and the outlet of the discharge pipe 41 extends to the top of the main frame 2.

[0032] The outlet of the discharge pipe 41 is connected to the discharge port 9 of the fifth skin 8. The outlet of the discharge pipe 41 includes a first discharge port 43, a second discharge port 44, and an unloading port 45.

[0033] The end cap 10 is movably connected to the discharge port 9 via a rotating connector 11, which includes a fixed block 111 and a rotating block 112.

[0034] The end face of the fixing block 111 is provided with a first connecting hole 113, and it is fixedly installed on the side of the discharge port 9 through the first connecting hole 113;

[0035] The rotating block 112 is movably connected to the fixed block 111 via a rotating shaft. A second connecting hole 114 is provided on the end face of the rotating block 112, and it is fixedly connected to the end cover 10 via the second connecting hole 114.

[0036] The working principle of this utility model is as follows:

[0037] Under normal circumstances, the end cap 10 will be closed under its own weight, providing dust and water protection for the first discharge port 43, the second discharge port 44 and the unloading port 45 of the heat relief device 4.

[0038] When the thermal depressurization device 4 is activated, the high-pressure hydrogen in the hydrogen storage cylinder 3 will be discharged through the discharge pipe 41 and impact the end cap 10 through the first discharge port 43, the second discharge port 44 and the unloading port 45. Since the impact force of the high-pressure hydrogen discharge is much greater than the weight of the end cap 10 itself, and the end cap 10 is installed by rotating the connecting piece 11, the end cap 10 will be forced open by itself, and the discharge pipe 41 will be directly discharged to the atmosphere to avoid safety accidents.

[0039] In this document, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", "vertical", and "horizontal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the purpose of clarifying the technical solution and for the convenience of description, and therefore should not be construed as limiting the present utility model.

[0040] In this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A skin structure in a vehicle-mounted hydrogen supply system with a heat relief device, comprising a hydrogen supply system (1), wherein the hydrogen supply system (1) comprises a main frame (2), a plurality of hydrogen storage cylinders (3) disposed within the main frame (2), and a heat relief device (4) connected to the outlet of the hydrogen storage cylinders (3); Its features are, The hydrogen supply system (1) is provided with a skin assembly, which includes a first skin (5), a second skin (6), a third skin (7) and a fourth skin (12) arranged along the outer side of the main frame (2), and a fifth skin (8) arranged on the top of the main frame (2). The fifth skin (8) is provided with several discharge ports (9) connected to the heat relief device (4), and an end cap (10) is provided at the discharge port (9).

2. The skin structure of the on-board hydrogen supply system with a thermal depressurization device according to claim 1, characterized in that, The main frame (2) includes several support rods (21), which are connected to each other to form a frame structure. The interior of the frame structure is used to place hydrogen storage cylinders (3).

3. The skin structure of the on-board hydrogen supply system with a thermal depressurization device according to claim 1, characterized in that, The heat relief device (4) includes several discharge pipes (41) and a pipe joint (42) for connecting the discharge pipes (41). The inlet of the discharge pipe (41) is connected to the heat relief port (31) of the hydrogen storage cylinder (3), and the outlet of the discharge pipe (41) extends to the top of the main frame (2).

4. The skin structure of the on-board hydrogen supply system with a thermal depressurization device according to claim 3, characterized in that, The outlet of the discharge pipe (41) is connected to the discharge port (9) of the fifth skin (8). The outlet of the discharge pipe (41) includes a first discharge port (43), a second discharge port (44), and an unloading port (45).

5. The skin structure of the on-board hydrogen supply system with a thermal depressurization device according to claim 1, characterized in that, The end cap (10) is movably connected to the discharge port (9) via a rotating connector (11), which includes a fixed block (111) and a rotating block (112). The end face of the fixing block (111) is provided with a first connecting hole (113), and is fixedly installed on the side of the discharge port (9) through the first connecting hole (113); The rotating block (112) is movably connected to the fixed block (111) via a rotating shaft. A second connecting hole (114) is provided on the end face of the rotating block (112), and it is fixedly connected to the end cover (10) via the second connecting hole (114).

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