A fuel cell underground mining truck using solid-state hydrogen storage

Abstract

This utility model discloses a fuel cell underground mining truck using solid-state hydrogen storage, comprising a connected driver's cab, engine compartment, and chassis. Its key feature is that the engine compartment houses a fuel cell system, and a drive motor and a tail exhaust hydrogen eliminator are mounted on the chassis behind the fuel cell system. A radiator and a battery pack are located on the top of the engine compartment. The air inlet of the fuel cell system is connected to a two-stage air filter device, including a primary physical air filter and a secondary chemical air filter. The hydrogen inlet of the fuel cell system is connected to a low-pressure solid-state hydrogen storage system, and the exhaust outlet of the fuel cell system is connected to the tail exhaust hydrogen eliminator. The cooling water circuit of the fuel cell system is connected to the radiator and the low-pressure solid-state hydrogen storage system, and the radiator is connected to an expansion tank. The fuel cell system is electrically connected to the drive motor, and the battery pack is connected to both the drive motor and the fuel cell system. This utility model features minimal space occupation, high energy utilization efficiency, energy saving, cost reduction, high safety, and high heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to a fuel cell underground mining truck using solid hydrogen storage, belonging to the technical field of underground mining vehicles. Background Technology

[0002] Traditional underground mining cars are powered by diesel engines. Diesel engines are noisy and produce highly polluting exhaust fumes. Combined with the limited space and restricted airflow underground, prolonged work in this environment seriously damages the health of workers. Furthermore, diesel engines have low thermal efficiency and high fuel costs. In addition, the restricted airflow and high temperatures underground make air-cooled radiators inefficient in this environment. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a fuel cell underground mining truck that uses solid hydrogen storage.

[0004] The technical solution provided by this utility model is as follows: A fuel cell underground mining truck using solid hydrogen storage includes a connected driver's cab, engine compartment, and chassis; characterized in that a fuel cell system is installed in the engine compartment, and a drive motor and a tail exhaust hydrogen eliminator are installed on the chassis behind the fuel cell system; a radiator and a battery pack are installed on the top of the engine compartment; the air inlet of the fuel cell system is connected to a two-stage air filter device, which includes a first-stage physical air filter and a second-stage chemical air filter; the hydrogen inlet of the fuel cell system is connected to a low-pressure solid hydrogen storage system; the tail gas outlet of the fuel cell system is connected to the tail exhaust hydrogen eliminator; the cooling water circuit of the fuel cell system is connected to the radiator and the low-pressure solid hydrogen storage system, and the radiator is connected to an expansion tank; the fuel cell system is electrically connected to the drive motor, and the battery pack is connected to both the drive motor and the fuel cell system.

[0005] Furthermore, the tail exhaust hydrogen eliminator is connected to the tail exhaust muffler.

[0006] The beneficial effects of this invention are as follows: This invention uses a vehicle power system consisting of a fuel cell system, a battery pack, and a drive motor to replace the diesel engine as the power source, solving the diesel engine exhaust emission problem, improving energy utilization efficiency, and achieving energy saving and cost reduction. Using a low-pressure solid-state hydrogen storage system to provide hydrogen to the fuel cell system is not only safe and compact, but also beneficial for heat dissipation of the fuel cell system. Because air flow is restricted and temperatures are high underground, radiators have low heat dissipation efficiency in this environment. The low-pressure solid-state hydrogen storage system can utilize the waste heat from the fuel cell system to heat itself, reducing the requirements of the fuel cell's cooling system. Smaller radiators can be selected to reduce the space occupied in the vehicle and also lower costs. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of this utility model;

[0008] Figure 2 This is a schematic diagram of the internal structure of the engine compartment of this utility model;

[0009] Figure 3 This is a schematic diagram of the intake and exhaust principle of the fuel cell system of this utility model;

[0010] Figure 4 This is a schematic diagram illustrating the thermal management principle of the fuel cell system of this utility model;

[0011] Figure 5 This is a schematic diagram of the energy transfer of the vehicle power system according to this utility model;

[0012] In the diagram: 1. Low-pressure solid hydrogen storage system, 2. Two-stage air filter, 3. Fuel cell system, 4. Exhaust hydrogen eliminator, 5. Exhaust muffler, 6. Expansion tank, 7. Radiator, 8. Battery pack, 9. Cockpit, 10. Engine compartment, 11. Drive motor, 12. Chassis. Detailed Implementation

[0013] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0014] like Figures 1-5 As shown, a fuel cell underground mining truck using solid-state hydrogen storage includes a connected driver's cab 9, an engine compartment 10, and a chassis 12. The engine compartment 10 houses a fuel cell system 3, and a drive motor 11, a hydrogen exhaust eliminator 4, and an exhaust muffler 5 are mounted on the chassis 12 behind the fuel cell system 3. A radiator 7 and a battery pack 8 are installed on the top of the engine compartment 10.

[0015] The fuel cell system 3 uses hydrogen to generate electricity with zero emissions and no pollution. The air inlet of the fuel cell system 3 is connected to a two-stage air filtration device 2, which includes a primary physical air filter 21 and a secondary chemical air filter 22. The primary physical air filter 21 is a physical air filter, which is used because there are many dust particles in the underground mine tunnels. The secondary chemical air filter 22 is a chemical air filter. The mine tunnel air contains gases that are harmful to the fuel cell. After the primary air filter filters out the dust particles, the secondary air filter filters out the harmful gases in the air, effectively protecting the fuel cell and extending its service life.

[0016] The hydrogen inlet of fuel cell system 3 is connected to low-pressure solid-state hydrogen storage system 1, which stores hydrogen and supplies it to fuel cell system 3. The exhaust outlet of fuel cell system 3 is connected to exhaust hydrogen eliminator 4, which in turn is connected to exhaust muffler 5. Exhaust hydrogen eliminator 4 reacts the small amount of hydrogen in the exhaust gas of fuel cell system 3 with oxygen in the exhaust gas under catalysis to produce water, ensuring that the exhaust gas is hydrogen-free and safe. Exhaust muffler 5 reduces exhaust noise.

[0017] The cooling water circuit of fuel cell system 3 is connected to radiator 7 and low-pressure solid hydrogen storage system 1. Radiator 7 is connected to expansion tank 6. Radiator 7 and low-pressure solid hydrogen storage system 1 mainly provide heat dissipation for fuel cell system 3.

[0018] The fuel cell system 3 is electrically connected to the drive motor 11, providing electrical energy to the drive motor 11, which in turn drives the mining truck. The battery pack 8 is connected to both the drive motor 11 and the fuel cell system 3. The battery pack 8 stores the electrical energy generated by the fuel cell system 3 and then transfers it to the drive motor 11. The fuel cell system 3 generates electrical energy through a reaction, which powers the drive motor 11. When the vehicle starts, the battery pack 8 provides the electrical energy to start the fuel cell system 3. The fuel cell system 3 then uses hydrogen provided by the low-pressure solid hydrogen storage system 1 to generate electricity, simultaneously powering the drive motor 11, which in turn drives the mining truck. Under heavy load and rapid acceleration conditions, both the battery pack 8 and the fuel cell system 3 work together to power the drive motor 11. When the battery pack 8 is low on power, the fuel cell system 3 can also charge it. During acceleration, the drive motor 11 can recover energy to charge the battery pack 8, improving the overall energy utilization efficiency of the vehicle and achieving energy saving and cost reduction.

[0019] It should be understood that any parts not described in detail in this specification belong to the prior art. The above embodiments are merely descriptions of preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and improvements to the technical solutions of this utility model made by those skilled in the art without departing from the spirit of this utility model should fall within the protection scope defined by the claims of this utility model.

Claims

1. A fuel cell underground mining truck using solid-state hydrogen storage, comprising a connected driver's cab, engine compartment, and chassis; characterized in that, The engine compartment houses the fuel cell system, with a drive motor and exhaust hydrogen scavenger mounted on the chassis behind it. A radiator and battery pack are located on the top of the engine compartment. The air inlet of the fuel cell system is connected to a two-stage air filtration system, consisting of a primary physical air filter and a secondary chemical air filter. The hydrogen inlet of the fuel cell system is connected to a low-pressure solid-state hydrogen storage system, and the exhaust outlet of the fuel cell system is connected to the exhaust hydrogen scavenger. The cooling water circuit of the fuel cell system connects to the radiator and the low-pressure solid-state hydrogen storage system, with the radiator connected to an expansion tank. The fuel cell system is electrically connected to the drive motor, and the battery pack is connected to both the drive motor and the fuel cell system.

2. A fuel cell underground mining truck using solid-state hydrogen storage as described in claim 1, characterized in that... The tail exhaust hydrogen elimination device is connected to the tail exhaust muffler.

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