Two-bottle-group logistics vehicle hydrogen supply system

Abstract

The utility model discloses a two-bottle-group logistics vehicle hydrogen supply system which comprises an installation support capable of being fixedly connected with a vehicle body chassis and a switching device used for controlling hydrogen output, and hydrogen storage bottles are arranged on the two sides of the installation support respectively. The switching device comprises electromagnetic valves arranged at bottle openings of the hydrogen storage bottles and pressure reducing valves arranged at the output ends of the electromagnetic valves, the tail portions of the hydrogen storage bottles are provided with release protection devices respectively, the hydrogen storage bottles are installed on the two sides of the installation support respectively, the space is reasonably utilized, and the installation procedure is simplified; the pressure reducing valve is arranged at the output end of the electromagnetic valve, so that hydrogen in the two hydrogen storage bottles is conveyed to the fuel cell engine at proper pressure, the discharge protection device is arranged at the tail part of each hydrogen storage bottle, so that an exhaust channel is formed in the mounting bracket when the external temperature is too high, and the hydrogen in the hydrogen storage bottles can be safely discharged; the hydrogen supply system for the commercial logistics vehicle belongs to the field of hydrogen supply systems for commercial logistics vehicles.

Description

Technical Field

[0001] The utility model belongs to the field of hydrogen supply systems for commercial logistics vehicles, and more specifically relates to a hydrogen supply system for logistics vehicles with two bottles. Background Art

[0002] We are now in an era of rapid development of new energy vehicles. The popularity of pure electric vehicles has improved people's lifestyles and brought positive impacts to the ecological environment. The new energy field is also constantly expanding in directions other than pure electricity. With the world's attention to environmental protection and sustainable development, hydrogen fuel cell vehicles, as a clean energy vehicle, will gradually become an important part of the new energy vehicle market.

[0003] The hydrogen supply system is a system that provides fuel for hydrogen-powered vehicles, which is equivalent to the fuel tank of a gasoline truck. Based on the existing level of technological development, the main application types are commercial vehicles, such as buses, transport logistics vehicles, refrigerated trucks, and trucks. Among them, commercial logistics vehicles are commercial vehicles that are mainly used to carry goods based on their design and technical characteristics.

[0004] Currently, most hydrogen supply systems are installed directly on the chassis of the car, which lacks safety. In addition, the chassis of commercial logistics vehicles will limit the volume of the hydrogen supply system, resulting in poor hydrogen storage capacity, complex installation procedures, and high installation difficulty. Utility Model Content

[0005] The main purpose of the utility model is to provide a two-bottle logistics vehicle hydrogen supply system that can improve system safety and hydrogen storage capacity and is easy to install.

[0006] In order to achieve the above object, the technical solution of the utility model is:

[0007] A two-bottle logistics vehicle hydrogen supply system comprises a mounting bracket fixedly connected to a vehicle chassis and a switch device for controlling hydrogen output, hydrogen storage bottles are respectively provided on both sides of the mounting bracket, the switch device comprises a solenoid valve respectively provided at the bottle mouth of each of the hydrogen storage bottles and a pressure reducing valve provided at the output end of the solenoid valve, the two hydrogen storage bottles can be connected under the control of the corresponding solenoid valve, and a discharge protection device is respectively provided at the tail of each of the hydrogen storage bottles, the discharge protection device can form an exhaust channel in the mounting bracket when the external temperature is too high, and the internal hydrogen of the hydrogen storage bottle can be safely discharged through the exhaust channel.

[0008] In a specific embodiment of the utility model, a hydrogen delivery device is also provided at the bottle mouth of the hydrogen storage bottle, and the hydrogen delivery device includes a high-pressure sensor arranged on one side of the solenoid valve and a hydrogen filling port arranged above the mounting bracket.

[0009] In a specific embodiment of the present invention, a pressure gauge is connected to the outer side of the high-pressure sensor, and the pressure in the corresponding hydrogen storage bottle can be read by the pressure gauge.

[0010] In a specific embodiment of the present invention, the mounting bracket includes two protective shells for accommodating the hydrogen storage bottle and at least two fixing rods arranged between the two protective shells.

[0011] In a specific embodiment of the present invention, reinforcing ribs are respectively provided at the connection between the fixing rod and the protective shell.

[0012] In a specific embodiment of the present invention, the two protective shells are arranged in parallel with each other, and the tops of the protective shells are respectively provided with openings and safety belts for fixing the hydrogen storage bottles.

[0013] In a specific embodiment of the present invention, the switch device further comprises a medium pressure sensor arranged on the pressure reducing valve and a filter arranged at the output end of the pressure reducing valve.

[0014] In a specific embodiment of the utility model, a manual discharge valve which can be communicated with the hydrogen transmission pipeline is further provided in the mounting bracket, and the hydrogen in the hydrogen transmission pipeline can be discharged by opening the manual discharge valve.

[0015] In a specific embodiment of the present invention, the discharge protection device includes a tail valve and a first hydrogen concentration sensor respectively arranged above the tail valve.

[0016] In a specific embodiment of the present invention, a second hydrogen concentration sensor is respectively provided above the solenoid valve.

[0017] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:

[0018] The overall dimensions of the utility model are designed according to the wheelbase and track of the vehicle, and hydrogen storage bottles are installed on both sides of the mounting bracket, respectively, so as to reasonably utilize the space and simplify the mounting process; and by arranging a solenoid valve and a pressure reducing valve at the output end of the solenoid valve, it is ensured that the hydrogen in the two hydrogen storage bottles is delivered to the fuel cell engine at a suitable pressure; further, by arranging a discharge protection device at the tail of the hydrogen storage bottle, an exhaust channel is formed in the mounting bracket when the external temperature is too high, so that the internal hydrogen of the hydrogen storage bottle can be safely discharged, thereby improving the safety of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments;

[0020] Attached Figure 1 This is an overall structural diagram of an embodiment of the utility model;

[0021] Attached Figure 2 A partial perspective view of an embodiment of the utility model;

[0022] Attached Figure 3 A top view of an embodiment of the utility model;

[0023] Attached Figure 4 It is a side view of an embodiment of the utility model. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.

[0029] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0030] See attached Figure 1 To Attachment Figure 4 As shown, a two-bottle hydrogen supply system for a logistics vehicle includes a mounting bracket 1 that can be fixedly connected to the vehicle chassis, a switch device 2 for controlling hydrogen output, two hydrogen storage bottles 3 with a volume of 385L, and a discharge protection device 4. The hydrogen storage bottles 3 are respectively arranged on both sides of the mounting bracket 1. The two hydrogen storage bottles 3 with a volume of 385L are combined with the mounting bracket 1 structure with high integration and high space utilization, which can effectively increase the hydrogen storage capacity and further increase the vehicle's cruising range.

[0031] In one embodiment of the utility model, the switch device 2 includes a solenoid valve 21 respectively arranged at the bottle mouth of each hydrogen storage bottle 3, a pressure reducing valve 22 arranged at the output end of the solenoid valve 21, and a filter 23 arranged at the output end of the pressure reducing valve 22. The two hydrogen storage bottles 3 can be connected under the control of the corresponding solenoid valve 21, and a second hydrogen concentration sensor 9 is respectively provided above the solenoid valve 21 to improve the safety when using hydrogen.

[0032] When the fuel cell engine needs to use the hydrogen in the hydrogen storage bottle 3, the electromagnetic valve 21 can be energized to automatically open the valve to release the hydrogen into the hydrogen transmission pipeline, and the pressure is further reduced to the pressure required by the fuel cell engine through the pressure reducing valve 22. A medium pressure sensor is provided on the pressure reducing valve 22 to read the pressure value after pressure reduction to avoid damage to the fuel cell engine due to excessively high or low pressure. Before the decompressed hydrogen enters the fuel cell engine, the filter 23 will filter the hydrogen to prevent impurities in the hydrogen from affecting the operation of the fuel cell engine.

[0033] In one embodiment of the utility model, a discharge protection device 4 is respectively provided at the tail of each hydrogen storage bottle 3, and the discharge protection device 4 includes a tail valve 41 and a first hydrogen concentration sensor 42 respectively arranged above the tail valve 41. When the temperature to which the hydrogen storage bottle 3 is subjected reaches 110°C or above, the discharge protection device 4 will sense the high temperature and break, and under the action of high-pressure hydrogen, an exhaust channel is formed in the mounting bracket 1 to discharge all the hydrogen in the hydrogen storage bottle 3, thereby avoiding dangers caused by high temperature hazards such as fire.

[0034] In one embodiment of the utility model, a hydrogen delivery device 5 is provided at the bottle mouth of the hydrogen storage bottle 3, and the hydrogen delivery device 5 includes a high-pressure sensor 51 arranged on one side of the solenoid valve 21 and a hydrogen filling port 52 arranged above the mounting bracket 1, and a pressure gauge 53 is connected to the outer side of the high-pressure sensor 51.

[0035] Hydrogen is added from the hydrogen filling port 52, and the pressure in the hydrogen storage bottle 3 can be observed by a pressure gauge 53 installed on the side, so that when filling hydrogen, the pressure gauge 53 can be observed to determine whether the filling is completed. In addition, the pressure inside the hydrogen storage bottle 3 can also be read by the high-pressure sensor 51. The pressure value in the hydrogen storage bottle 3 can then be determined to fill hydrogen in advance to avoid the vehicle breaking down after the hydrogen is consumed.

[0036] In one embodiment of the utility model, the mounting bracket 1 includes two protective shells 11 for accommodating the hydrogen storage bottle 3 and two fixing rods 12 arranged between the two protective shells 11, and reinforcing ribs 6 are respectively provided at the connection between each fixing rod 12 and the protective shell 11. The two protective shells 11 are arranged in parallel with each other, and openings and safety belts 7 for fixing the hydrogen storage bottle 3 are respectively provided at the top of the protective shells 11. The open design of the protective shell 11 can greatly reduce the risk of hydrogen leakage.

[0037] In one embodiment of the utility model, a manual drain valve 8 which can be connected to the hydrogen transmission pipeline is provided in the mounting bracket 1. The manual drain valve 8 can be opened to discharge the hydrogen in the hydrogen transmission pipeline. Therefore, when the hydrogen transmission pipeline leaks or the vehicle needs to be parked for a long time, the manual drain valve 8 can be opened to release the hydrogen in the hydrogen transmission pipeline through the discharge pipeline, thereby ensuring the safety of subsequent operations.

[0038] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A two-bottle hydrogen supply system for logistics vehicles, characterized in that: The invention comprises a mounting bracket (1) which can be fixedly connected to a vehicle chassis and a switch device (2) for controlling hydrogen output. Hydrogen storage bottles (3) are respectively arranged on both sides of the mounting bracket (1). The switch device (2) comprises a solenoid valve (21) respectively arranged at the bottle mouth of each hydrogen storage bottle (3) and a pressure reducing valve (22) arranged at the output end of the solenoid valve (21). The two hydrogen storage bottles (3) can be connected under the control of the corresponding solenoid valve (21). A discharge protection device (4) is respectively arranged at the tail of each hydrogen storage bottle (3). When the external temperature is too high, the discharge protection device (4) can form an exhaust channel in the mounting bracket (1), and the internal hydrogen of the hydrogen storage bottle (3) can be safely discharged through the exhaust channel.

2. The two-bottle logistics vehicle hydrogen supply system according to claim 1 is characterized by: A hydrogen delivery device (5) is also provided at the bottle mouth of the hydrogen storage bottle (3), and the hydrogen delivery device (5) comprises a high-pressure sensor (51) provided on one side of the solenoid valve (21) and a hydrogen filling port (52) provided above the mounting bracket (1).

3. The two-bottle logistics vehicle hydrogen supply system according to claim 2 is characterized in that: The outer side of the high-pressure sensor (51) is connected to a pressure gauge (53), and the pressure in the corresponding hydrogen storage bottle (3) can be read through the pressure gauge (53).

4. The two-bottle logistics vehicle hydrogen supply system according to claim 1 is characterized in that: The mounting bracket (1) comprises two protective shells (11) for accommodating the hydrogen storage bottles (3) and at least two fixing rods (12) arranged between the two protective shells (11).

5. The two-bottle logistics vehicle hydrogen supply system according to claim 4 is characterized in that: Reinforcing ribs (6) are respectively provided at the connection points between the fixing rod (12) and the protective shell (11).

6. The two-bottle logistics vehicle hydrogen supply system according to claim 4 is characterized by: The two protective shells (11) are arranged in parallel with each other, and the tops of the protective shells (11) are respectively provided with openings and safety belts (7) for fixing the hydrogen storage bottles (3).

7. The two-bottle logistics vehicle hydrogen supply system according to claim 1 is characterized by: The switch device (2) further comprises a medium pressure sensor arranged on the pressure reducing valve (22) and a filter (23) arranged at the output end of the pressure reducing valve (22).

8. The two-bottle logistics vehicle hydrogen supply system according to claim 1 is characterized by: A manual discharge valve (8) which can be communicated with the hydrogen transmission pipeline is also provided in the mounting bracket (1); the hydrogen in the hydrogen transmission pipeline can be discharged by opening the manual discharge valve (8).

9. The two-bottle logistics vehicle hydrogen supply system according to claim 1 is characterized by: The discharge protection device (4) comprises a tail valve (41) and a first hydrogen concentration sensor (42) respectively arranged above the tail valve (41).

10. The two-bottle logistics vehicle hydrogen supply system according to claim 1, characterized in that: A second hydrogen concentration sensor (9) is provided above each of the solenoid valves (21).

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