Hydrogen filling port protection device and hydrogen energy rail car

Abstract

The utility model provides a hydrogenation port protection device and a hydrogen energy rail car, comprising: a housing, the housing comprises a door plate, a fixed plate and an accommodating cavity, the door plate and the fixed plate are oppositely arranged, a hydrogenation pipe penetrates through the fixed plate, and the hydrogenation end of a hydrogenation port is arranged in the accommodating cavity; the door plate is rotatably arranged relative to the shell; the protection switch is arranged in the containing cavity, the protection switch comprises an induction part and an adsorption part, the induction part is arranged on the door plate, the adsorption part is fixed in the containing cavity, the adsorption part is communicated with a power circuit, and when the circuit is powered on, the adsorption part adsorbs the induction part so that the door plate can be in a closed state; when the circuit is powered off, the adsorption part is disconnected with the sensing part, and the door plate is rotated to be opened. According to the hydrogen filling port protection device and the hydrogen energy rail car, the technical problem that safety accidents are extremely easily caused when hydrogen is injected into the hydrogen filling port under the condition that the hydrogen energy rail car is not powered off in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen energy rail hydrogenation equipment, and in particular to a hydrogenation port protection device and a hydrogen energy rail vehicle. Background Art

[0002] Hydrogen-powered rail vehicles have the advantages of good environmental performance, high conversion efficiency, short refueling time and long cruising range. They are an important direction for the sustainable development of the future transportation industry and an important strategic measure to cope with global energy shortages and environmental pollution.

[0003] The existing hydrogenation structure is to connect a pipeline to the hydrogen storage device, and inject hydrogen into the hydrogen storage device by opening the hydrogenation port cover on the pipeline to supply energy for the hydrogen energy rail car. Since hydrogen is flammable and explosive, during the hydrogenation operation, it is necessary to ensure that the hydrogen energy rail car is in a power-off state. If hydrogen is injected into the hydrogenation port of the hydrogen energy rail car without powering off, it is very easy to cause a safety accident.

[0004] Therefore, the prior art needs to be further developed. Utility Model Content

[0005] The purpose of the utility model is to overcome the above technical deficiencies and provide a hydrogen filling port protection device and a hydrogen energy rail car to solve the technical problem in the related art that injecting hydrogen into the hydrogen filling port of a hydrogen energy rail car without cutting off the power is very likely to cause a safety accident.

[0006] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a hydrogenation port protection device is provided, comprising: a shell, the shell comprising a door panel, a fixed plate and a accommodating chamber, the door panel and the fixed plate are arranged opposite to each other, the hydrogenation pipe passes through the fixed plate, the hydrogenation port on the hydrogenation pipe is arranged in the accommodating chamber, and the door panel is rotatably arranged relative to the shell; a protection switch, the protection switch is arranged in the accommodating chamber, the protection switch comprises a sensing component and an adsorption component, the sensing component is arranged on the door panel, the adsorption component is fixed in the accommodating chamber, the adsorption component is connected to the power circuit, when the circuit is powered on, the adsorption component adsorbs the sensing component to put the door panel in a closed state; when the circuit is powered off, the adsorption component is disconnected from the sensing component, and the door panel is rotated to open the door panel.

[0007] Furthermore, the induction component is a magnet, and when the circuit is energized, the adsorption component adsorbs the magnet.

[0008] Furthermore, the shell also includes a first side plate and a second side plate, the door plate, the first side plate, the fixing plate and the second side plate are sequentially connected to form a receiving cavity, and the first side plate and the second side plate are arranged opposite to each other.

[0009] Furthermore, the shell also includes an upper protective plate and a lower protective plate, one end of the door panel, the first side panel, the fixed plate and the second side panel are connected to the upper protective plate, and the other ends of the door panel, the first side panel, the fixed plate and the second side panel are connected to the lower protective plate, the upper protective plate and the lower protective plate are arranged at intervals, the upper protective plate and the lower protective plate are arranged parallel to each other, and the upper protective plate is located above the lower protective plate.

[0010] Furthermore, the fixed plate, the first side plate, the second side plate, the upper protective plate and the lower protective plate are all provided with a plurality of diffusion holes, each of which is arranged at intervals, and the hydrogen in the accommodating cavity is diffused to the outside of the shell through the diffusion holes.

[0011] Furthermore, a fixing bracket is provided on the lower protective plate, and the adsorption component is fixed on the fixing bracket.

[0012] Furthermore, it also includes a hinge assembly, which is connected to the door panel. The hinge assembly is rotated to drive the door panel to rotate relative to the shell.

[0013] Furthermore, the hinge assembly includes: a first hinge, the first hinge is fixed on the upper protective plate; a second hinge, the second hinge is fixed on the door panel; a movable shaft, the first hinge and the second hinge are both connected to the movable shaft, and the first hinge and the second hinge are respectively rotatably arranged relative to the movable shaft.

[0014] Furthermore, the hydrogen filling port protection device also includes a hydrogen concentration sensor, which is disposed in the accommodating cavity and fixed on the fixing plate. The hydrogen concentration sensor is located above the hydrogen filling port.

[0015] A hydrogen energy rail car comprises the hydrogen filling port protection device as mentioned above.

[0016] Beneficial effects:

[0017] 1. The hydrogen filling port protection device of the utility model has the following advantages: when the equipment is powered on, the adsorption component adsorbs the sensing component so that the door panel cannot be opened; after the power is cut off, the adsorption component is disconnected from the sensing component, thereby opening the door panel, ensuring that the equipment is in a power-off state when the door panel is opened, thereby preventing safety accidents caused by ignition of hydrogen due to power failure.

[0018] 2. The hydrogenation port protection device of the utility model has a plurality of air dispersion holes on the shell to prevent hydrogen from leaking from the hydrogenation port and gathering to avoid explosion.

[0019] 3. The hydrogen energy rail car of the utility model is equipped with a hydrogen concentration sensor near the hydrogen filling port of the hydrogen filling port protection device. Once a hydrogen leak occurs, an alarm is issued to remind the staff to handle it, so as to ensure the safety of the hydrogen energy rail car and personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a structural schematic diagram of a hydrogenation port protection device adopted in an embodiment of the utility model from one perspective;

[0021] Figure 2 It is a structural schematic diagram of the hydrogenation port protection device adopted in the embodiment of the utility model from another perspective;

[0022] Figure 3 It is a structural schematic diagram of a hydrogen storage device for a hydrogen energy rail vehicle adopted in an embodiment of the utility model.

[0023] The above drawings include the following reference numerals:

[0024] 1. Shell; 11. Door panel; 12. Fixed plate; 13. First side panel; 14. Second side panel; 15. Accommodating chamber; 16. Upper protective plate; 17. Lower protective plate; 18. Door lock; 2. Hydrogen filling pipe; 21. Hydrogen filling port; 3. Protective switch; 31. Induction component; 32. Adsorption component; 4. Air diffusion hole; 5. Hinge assembly; 51. First loose-leaf; 52. Second loose-leaf; 53. Movable shaft; 6. Hydrogen concentration sensor; 7. Fixed bracket; 8. Hydrogen storage device. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] According to the embodiment of the utility model, a hydrogenation port protection device is provided. Figures 1 to 3, including: a shell 1, the shell 1 includes a door plate 11, a fixed plate 12 and a receiving chamber 15, the door plate 11 and the fixed plate 12 are arranged opposite to each other, the hydrogenation pipe 2 is arranged through the fixed plate 12, the hydrogenation port 21 on the hydrogenation pipe 2 is arranged in the receiving chamber 15, and the door plate 11 is rotatably arranged relative to the shell 1; a protection switch 3, the protection switch 3 is arranged in the receiving chamber 15, the protection switch 3 includes a sensing component 31 and an adsorption component 32, the sensing component 31 is arranged on the door plate 11, the adsorption component 32 is fixed in the receiving chamber 15, the adsorption component 32 is connected to the power circuit, when the circuit is powered on, the adsorption component 32 adsorbs the sensing component 31 to make the door plate 11 in a closed state; when the circuit is powered off, the adsorption component 32 is disconnected from the sensing component 31, and the door plate 11 is rotated to open the door plate 11. The hydrogenation pipe 2 passes through the fixed plate 12 and enters the receiving chamber 15, and the sensing component 31 in the receiving chamber 15 is fixed on the door plate 11 and is arranged corresponding to the adsorption component 32. When the power is on, the adsorption component 32 adsorbs the sensing component 31, so that the door panel 11 cannot move and is in a closed state, so that hydrogen cannot be injected into the hydrogen filling port 21. When the power is off, the adsorption component 32 is disconnected from the sensing component 31, and the door panel 11 is rotated to open it. At this time, hydrogen can be injected into the hydrogen filling port 21 to ensure that the equipment is safely hydrogenated in the power-off state. The hydrogen filling port protection device of this embodiment solves the technical problem in the related art that hydrogen energy rail vehicles are easily prone to safety accidents when hydrogen is injected into the hydrogen filling port without power off.

[0027] See also Figure 1 and Figure 2 In the hydrogenation port protection device of this embodiment, the induction component 31 is a magnet, and when the circuit is powered on, the adsorption component 32 adsorbs the magnet. When the power is turned on, the adsorption component 32 has a component capable of adsorbing the magnet inside; when the power is turned off, the adsorption component 32 cannot adsorb the magnet.

[0028] See also Figure 1 and Figure 2 In the hydrogenation port protection device of this embodiment, the housing 1 further includes a first side plate 13 and a second side plate 14, the door plate 11, the first side plate 13, the fixing plate 12 and the second side plate 14 are sequentially connected to form a receiving chamber 15, and the first side plate 13 and the second side plate 14 are arranged opposite to each other. The door plate 11 and the fixing plate 12 are arranged opposite to each other, and the first side plate 13 and the second side plate 14 are arranged opposite to each other to form the receiving chamber 15.

[0029] See also Figure 1 and Figure 2In the hydrogenation port protection device of this embodiment, the housing 1 further includes an upper protection plate 16 and a lower protection plate 17. One ends of the door plate 11, the first side plate 13, the fixing plate 12, and the second side plate 14 are all connected to the upper protection plate 16. The other ends of the door plate 11, the first side plate 13, the fixing plate 12, and the second side plate 14 are all connected to the lower protection plate 17. The upper protection plate 16 and the lower protection plate 17 are arranged at intervals. The upper protection plate 16 and the lower protection plate 17 are arranged parallel to each other. The upper protection plate 16 is located above the lower protection plate 17. The door plate 11, the first side plate 13, the fixing plate 12, the second side plate 14, and the upper protection plate 16 and the lower protection plate 17 parallel to each other form a six-sided rectangular parallelepiped structure, and the hydrogenation port 21 is in the accommodating chamber 15.

[0030] See also Figure 1 and Figure 2 In the hydrogen filling port protection device of the present embodiment, a plurality of diffusion holes 4 are provided on the fixed plate 12, the first side plate 13, the second side plate 14, the upper protection plate 16 and the lower protection plate 17. The diffusion holes 4 are arranged at intervals, and the hydrogen in the accommodating chamber 15 is diffused to the outside of the shell 1 through the diffusion holes 4.

[0031] See also Figure 1 and Figure 2 In the hydrogenation port protection device of this embodiment, a fixing bracket 7 is provided on the lower protection plate 17, and the adsorption component 32 is fixed on the fixing bracket 7. The fixing bracket 7 is an L-shaped structure, including a first bracket and a second bracket, the first bracket is fixed on the lower protection plate 17, the second bracket is perpendicular to the lower protection plate 17, and one end of the adsorption component 32 passes through the second bracket, thereby adsorbing the sensing component 31.

[0032] See also Figure 1 and Figure 2 In the hydrogenation port protection device of the present embodiment, the hinge assembly 5 is further included. The hinge assembly 5 is connected to the door panel 11. The hinge assembly 5 is rotated to drive the door panel 11 to rotate relative to the housing 1.

[0033] See also Figure 1 In the hydrogenation port protection device of this embodiment, the hinge assembly 5 includes: a first hinge 51, the first hinge 51 is fixed on the upper protection plate 16; a second hinge 52, the second hinge 52 is fixed on the door panel 11; a movable shaft 53, the first hinge 51 and the second hinge 52 are both connected to the movable shaft 53, and the first hinge 51 and the second hinge 52 are rotatably arranged relative to the movable shaft 53. The first hinge 51 is fixed on the upper protection plate 16, and the door panel 11 is rotated in the vertical direction. Such an arrangement can make the door panel 11 in a closed state under the action of gravity, ensuring the hydrogenation port 21 inside the accommodating chamber 15. A door lock 18 is also installed on the door panel 11 to further block the door panel 11.

[0034] See also Figure 1 and Figure 2 In the hydrogen filling port protection device of this embodiment, the hydrogen filling port protection device further includes a hydrogen concentration sensor 6, which is disposed in the accommodating cavity 15, fixed on the fixing plate 12, and located above the hydrogen filling port 21. When hydrogen leaks, the hydrogen concentration sensor 6 sends a signal to remind the staff to handle it in time.

[0035] See also Figure 3 The hydrogen energy rail vehicle of this embodiment includes the hydrogen filling port protection device as described above. The hydrogen filling port protection devices are arranged on both sides of the hydrogen energy rail vehicle, with good ventilation to prevent the leakage of hydrogen from gathering, ensure safety while facilitating hydrogenation of the vehicle, and ensure that hydrogen can smoothly pass through the hydrogen filling port into the hydrogen storage device 8. A one-way valve is arranged inside the hydrogen filling port 21 to ensure that hydrogen will not leak when it is not in the hydrogenation state, and the hydrogen filling port is covered with a dust plug to prevent foreign matter from entering. The hydrogen filling port 21 can withstand a load of 670N from any direction without affecting the air tightness of the fuel system. A protective switch 3 is arranged on the hydrogen filling port protection device to ensure that the fuel cell is in the off state during hydrogenation.

[0036] The hydrogen filling port protection device is equipped with a protection switch, which has normally open and normally closed contacts. In the hydrogen energy rail car of this embodiment, normally closed contacts are used. The magnet is installed on the door panel 11, and the adsorption component 32 is fixed inside the shell 1. When the door panel 11 can be opened, it means that the protection switch is in a closed state, and the signal is transmitted to the fuel cell through the controller to ensure that it is in a shutdown state; when the door panel 11 is closed, the protection switch is in a disconnected state, and the fuel cell can be turned on.

[0037] In the hydrogen energy rail car of this embodiment, a grounding socket is welded on the shell 1, and a cable is used to connect the grounding socket of the car body to eliminate static electricity. A quick-plug grounding device is installed inside the shell 1, which is connected to the grounding bar on the ground during hydrogenation to ensure that the hydrogenation port or the grounding bar connected to the hydrogenation port can effectively conduct static electricity to the ground during the filling process.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0040] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0041] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0042] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A hydrogenation port protection device, characterized in that: include: A shell (1), the shell (1) comprising a door plate (11), a fixing plate (12) and a receiving chamber (15), the door plate (11) and the fixing plate (12) being arranged opposite to each other, the hydrogenation pipe (2) being arranged to pass through the fixing plate (12), the hydrogenation port (21) on the hydrogenation pipe (2) being arranged in the receiving chamber (15), and the door plate (11) being arranged to be rotatable relative to the shell (1); A protection switch (3), wherein the protection switch (3) is arranged in the accommodating cavity (15), and the protection switch (3) comprises a sensing component (31) and an adsorption component (32), wherein the sensing component (31) is arranged on the door panel (11), and the adsorption component (32) is fixed in the accommodating cavity (15), and the adsorption component (32) is connected to a power circuit. When the circuit is powered on, the adsorption component (32) adsorbs the sensing component (31) to put the door panel (11) in a closed state; when the circuit is powered off, the adsorption component (32) is disconnected from the sensing component (31), and the door panel (11) is rotated to open the door panel (11).

2. The hydrogenation port protection device according to claim 1, characterized in that: The induction component (31) is a magnet, and when the circuit is energized, the adsorption component (32) adsorbs the magnet.

3. The hydrogenation port protection device according to claim 1, characterized in that: The shell (1) further comprises a first side plate (13) and a second side plate (14); the door plate (11), the first side plate (13), the fixing plate (12) and the second side plate (14) are sequentially connected to form a receiving cavity (15); the first side plate (13) and the second side plate (14) are arranged opposite to each other.

4. The hydrogenation port protection device according to claim 3, characterized in that: The shell (1) also includes an upper protective plate (16) and a lower protective plate (17); one end of the door plate (11), the first side plate (13), the fixed plate (12) and the second side plate (14) are connected to the upper protective plate (16); the other ends of the door plate (11), the first side plate (13), the fixed plate (12) and the second side plate (14) are connected to the lower protective plate (17); the upper protective plate (16) and the lower protective plate (17) are arranged at intervals; the upper protective plate (16) and the lower protective plate (17) are arranged parallel to each other; and the upper protective plate (16) is located above the lower protective plate (17).

5. The hydrogenation port protection device according to claim 4, characterized in that: The fixing plate (12), the first side plate (13), the second side plate (14), the upper protective plate (16) and the lower protective plate (17) are all provided with a plurality of diffusion holes (4), the diffusion holes (4) being arranged at intervals, and the hydrogen in the accommodating cavity (15) is diffused to the outside of the shell (1) through the diffusion holes (4).

6. The hydrogenation port protection device according to claim 4, characterized in that: A fixing bracket (7) is provided on the lower protection plate (17), and the adsorption component (32) is fixed on the fixing bracket (7).

7. The hydrogenation port protection device according to claim 4, characterized in that: It also comprises a hinge assembly (5), wherein the hinge assembly (5) is connected to the door panel (11), and the door panel (11) is driven to rotate relative to the housing (1) by rotating the hinge assembly (5).

8. The hydrogenation port protection device according to claim 7, characterized in that: The hinge assembly (5) comprises: A first movable leaf (51), wherein the first movable leaf (51) is fixed on the upper protective plate (16); A second movable leaf (52), wherein the second movable leaf (52) is fixed on the door panel (11); A movable shaft (53), the first movable leaf (51) and the second movable leaf (52) are both connected to the movable shaft (53), and the first movable leaf (51) and the second movable leaf (52) are respectively rotatably arranged relative to the movable shaft (53).

9. The hydrogenation port protection device according to claim 1, characterized in that: The hydrogen filling port protection device further comprises a hydrogen concentration sensor (6), wherein the hydrogen concentration sensor (6) is arranged in the accommodating cavity (15), the hydrogen concentration sensor (6) is fixed on the fixing plate (12), and the hydrogen concentration sensor (6) is located above the hydrogen filling port (21).

10. A hydrogen-powered rail vehicle, characterized in that: It comprises the hydrogenation port protection device as described in any one of claims 1 to 9.

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