A methanol mining truck cargo box structure and a methanol mining truck

Abstract

This utility model relates to a methanol mining truck cargo box structure and a methanol mining truck, belonging to the field of hybrid vehicles. The technical solution is as follows: a methanol mining truck cargo box structure includes a cargo box body and an exhaust mechanism. The exhaust mechanism includes an air intake device and a heating device. The heating device includes a heating chamber located at the bottom of the cargo box body and its area is adapted to the bottom area of ​​the cargo box body. The air intake device is connected to the front of the heating chamber. A vertical air duct is provided at the rear of the heating chamber. A smoke exhaust port is opened at the upper end of the vertical air duct, and a water outlet is provided at the lower end of the vertical air duct. In this solution, a vertical air duct is provided at the rear of the cargo box body. The exhaust gas passing through the heating chamber is discharged upward from the vertical air duct, guiding water vapor to a high position for discharge, making it higher than the driver's rearward line of sight, greatly reducing interference with visibility. At the same time, as the exhaust gas rises in the vertical air duct, it condenses on the inner wall of the air duct and is discharged from the bottom water outlet, further reducing the water content of the exhaust gas.

Description

Technical Field

[0001] This utility model relates to the field of hybrid vehicles, and in particular to a methanol mining truck cargo box structure and a methanol mining truck. Background Technology

[0002] Methanol mining trucks are mining trucks powered by methanol and are gaining increasing importance in the mining transportation sector. These vehicles are equipped with a methanol engine as a range extender, along with a motor, battery, and other power components. The methanol engine burns methanol to drive a generator, producing electricity to power the motor, which in turn drives the vehicle. Under certain conditions, such as when the vehicle is braking or going downhill, an energy recovery system can convert kinetic energy into electrical energy and store it in the battery, achieving highly efficient energy utilization.

[0003] When methanol mining trucks are used in cold environments, the cargo loaded in the cargo box is prone to freezing and sticking to the cargo box due to the low ambient temperature. The material at the bottom of the cargo box is not easy to unload, resulting in repeated accumulation of material. To address this issue, most methanol hybrid mining trucks use the exhaust gas from the engine to heat the bottom of the cargo box, and the heated gas is discharged directly from the bottom of the cargo box.

[0004] However, the complete combustion of methanol produces a large amount of water (2 moles of methanol produce 4 moles of water upon complete combustion). In low-temperature environments, the gaseous water produced by methanol combustion will liquefy instantly upon encountering the cold at the bottom of the cargo box, generating a large amount of water mist that is emitted. If the exhaust port is placed at the bottom of the cargo box, the large amount of water mist emitted will accumulate around the tires and under the cargo box, greatly affecting the driver's rearview mirror vision, impacting driving, and posing a safety hazard. Summary of the Invention

[0005] This invention addresses the problem that water vapor generated from the combustion of methanol in methanol mining trucks forms mist that obstructs the driver's rear visibility, by providing a new cargo box structure for methanol mining trucks.

[0006] To solve the above problems, the technical solution adopted by this utility model is a methanol mining truck cargo box structure, including a cargo box body and an exhaust mechanism. The exhaust mechanism includes an air intake device and a heating device. The heating device includes a heating chamber, which is a hollow plate-shaped box structure located at the bottom of the cargo box body and its area is adapted to the bottom area of ​​the cargo box body. Along the vehicle's driving direction, the air intake device is connected to the front of the heating chamber. A vertical air duct is provided at the rear of the heating chamber. A smoke exhaust port is opened at the upper end of the vertical air duct, and a water outlet is provided at the lower end of the vertical air duct. In this solution, a vertical air duct is set at the rear of the cargo box body. The exhaust gas passing through the heating chamber is discharged upward from the vertical air duct, guiding the water vapor to a high position for discharge, making it higher than the driver's rear line of sight, greatly reducing interference with visibility. At the same time, as the exhaust gas rises in the vertical air duct, it condenses on the inner wall of the air duct and is discharged from the bottom water outlet, further reducing the water content of the exhaust gas.

[0007] As a preferred implementation of the cargo box structure for a methanol mining truck, the air intake device includes an exhaust pipe that can be connected to the vehicle engine. The exhaust pipe is connected to a three-way reversing valve. The first outlet of the three-way reversing valve is connected to a cargo box heating intake pipe, which is connected to the heating chamber. The second outlet of the three-way reversing valve is connected to an exhaust pipe, the tail end of which is open to the outside atmosphere. The three-way reversing valve allows for flexible control of the exhaust gas flow. When it is necessary to use the heat from the exhaust gas to heat the bottom of the cargo box, the exhaust gas is introduced into the heating chamber; when heating is not required, the exhaust gas can be directly discharged to the outside atmosphere through the exhaust pipe, improving the system's flexibility and adaptability and contributing to the rational use of energy.

[0008] As a preferred embodiment of the cargo box structure for methanol mining trucks, a buffer mechanism is provided at the connection between the cargo box heating air intake pipe and the cargo box body. The buffer mechanism can effectively reduce the vibration and impact caused by the exhaust gas flow, reduce the risk of damage to the connection of the cargo box body, extend the service life of the connection parts, and at the same time reduce the noise generated by vibration, thereby improving the comfort of the driving environment.

[0009] As a preferred embodiment of the cargo box structure for methanol mining trucks, the rear end of the cargo box heating air intake pipe is provided with a vertically arranged flexible pipe. The lower end of the flexible pipe is connected to the cargo box heating air intake pipe, and the upper end of the flexible pipe is connected to the bottom surface of the heating chamber. The flexible pipe can adapt to the relative displacement between the cargo box body and the heating air intake pipe caused by bumps and vibrations during vehicle operation, avoiding pipe rupture or damage due to rigid connection, and improving the reliability and stability of the exhaust mechanism.

[0010] As a preferred embodiment of the methanol mining truck cargo box structure, the rear end of the cargo box heating air intake pipe is further provided with a spring base, and the bottom of the heating chamber is provided with a spring connecting seat. A spring is provided between the spring base and the spring connecting seat, and the spring is sleeved on the outside of the flexible pipe. This further enhances the buffering effect on the connection between the heating air intake pipe and the heating chamber. When the vehicle is bumpy, the spring can absorb vibration energy, protect the flexible pipe and the connection, and also help maintain the stability of exhaust gas delivery, ensuring the normal operation of the heating chamber.

[0011] As a preferred embodiment of the methanol mining truck cargo box structure, the upper end of the vertical air duct is inclined forward along the vehicle's driving direction. This forward inclination of the vertical air duct, opposite to the exhaust airflow direction, intensifies the collision between the gas and the inner wall of the air duct, thereby promoting the condensation of water vapor and reducing the moisture content of the exhaust gas.

[0012] As a preferred embodiment of the methanol mining truck cargo box structure, a drain valve is provided at the water outlet, and the drain valve is normally open. The drain valve's piping structure obstructs the gas flow, reducing the amount of gas discharged at the water outlet and decreasing the generation of low-level water vapor. Simultaneously, the normally open drain valve promptly drains condensed water from the vertical air passage, preventing water accumulation and avoiding impact on exhaust gas emission efficiency due to excessive water buildup. It also reduces corrosion of the air passage's inner wall by moisture, extending the service life of the vertical air passage.

[0013] As a preferred embodiment of the methanol mining truck cargo box structure, the heating chamber is equipped with multiple square support columns connecting the top surface of the heating chamber to the ground. These columns divide the inner cavity of the heating chamber into a grid-like air passage. The support columns not only enhance the structural strength of the heating chamber, enabling it to withstand vibrations and pressures during vehicle operation, but the grid-like air passage design also increases the flow path and residence time of exhaust gas within the heating chamber, improving the heat exchange efficiency between the exhaust gas and the bottom of the cargo box, thus enhancing the heating effect.

[0014] As a preferred embodiment of the methanol mining truck cargo box structure, the three-way reversing valve is a solenoid valve, and a temperature sensor is installed inside the cargo box body, electrically connected to the three-way reversing valve. The cooperation between the temperature sensor and the solenoid valve enables intelligent control of the cargo box body heating process. When the temperature inside the cargo box body is lower than a set value, the temperature sensor transmits a signal to the solenoid valve, causing the three-way reversing valve to switch to the state of introducing exhaust gas into the heating chamber; when the temperature inside the cargo box body reaches the set value, the three-way reversing valve switches to the direct exhaust state, achieving precise temperature control, improving energy utilization efficiency, and preventing overheating of the cargo box body.

[0015] On the other hand, this utility model also provides a methanol mining truck, which adopts the above-mentioned methanol mining truck cargo box structure.

[0016] As can be seen from the above technical solutions, the advantages of this utility model are as follows: This solution, by setting a vertical air duct at the rear of the cargo box body, guides water vapor to a high position for emission, reducing interference with the driver's rear view. Furthermore, as the exhaust gas rises through the vertical air duct, water vapor condenses and is discharged from the bottom water outlet, reducing the water content of the exhaust gas. The upper end of the vertical air duct is tilted forward, further promoting water vapor condensation. The normally open drain valve at the water outlet can promptly discharge condensate, preventing water accumulation from affecting exhaust gas emission efficiency and corroding the inner wall of the air duct, thus extending the service life of the vertical air duct. The three-way reversing valve of the air intake device can flexibly control the exhaust gas flow direction, in conjunction with the cargo box body... Internal temperature sensors and solenoid valves enable intelligent and precise temperature control of the cargo box's internal heating process, improving energy efficiency and preventing overheating. Support columns within the heating chamber enhance structural strength, while a mesh-like air duct design improves heat exchange efficiency between exhaust gases and the bottom of the cargo box. A buffer mechanism at the connection between the cargo box heating intake pipe and the cargo box body, a flexible rear tube, and externally fitted springs reduce exhaust gas flow vibration and impact, adapt to relative displacement caused by vehicle movement, protect connection points, improve the reliability and stability of the exhaust system, reduce noise, and enhance driving comfort. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present utility model. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the buffer mechanism in Embodiment 1 of this utility model.

[0021] Explanation of main figure symbols 1. Exhaust pipe, 2. Exhaust pipe, 3. Cargo box heating air inlet pipe, 4. Buffer mechanism, 401 spring base, 402 spring, 403 spring connecting seat, 5. Cargo box body, 6. Water outlet, 7. Smoke outlet, 8. Three-way reversing valve, 9. Heating chamber, 10. Vertical air passage. Detailed Implementation

[0022] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0023] like Figure 1 , 2 As shown, a methanol mining truck cargo box structure includes a cargo box body 5 and an exhaust mechanism. The exhaust mechanism includes an intake device and a heating device. The heating device includes a heating chamber 9. The intake device includes an exhaust pipe 1 that can be connected to the vehicle engine. The exhaust pipe 1 is connected to a three-way reversing valve 8. The first outlet of the three-way reversing valve 8 is connected to a cargo box heating intake pipe 3. The cargo box heating intake pipe 3 is connected to the heating chamber 9. The heating chamber 9 has multiple square support columns connecting the top surface of the heating chamber 9 to the ground. The support columns divide the inner cavity of the heating chamber 9 into a grid-like air passage. The second outlet of the three-way reversing valve 8... The outlet is connected to an exhaust pipe 2, the tail end of which is connected to the outside atmosphere. The heating chamber 9 is a hollow plate-shaped box structure. The heating chamber 9 is located at the bottom of the cargo box body and its area is adapted to the bottom area of ​​the cargo box body. Along the vehicle driving direction, the air intake device is connected to the front of the heating chamber 9. The rear of the heating chamber 9 is provided with a vertical air duct 10. The upper end of the vertical air duct 10 is provided with a smoke exhaust port 7. The lower end of the vertical air duct 10 is provided with a water outlet 6. A drain valve is provided at the water outlet 6. The drain valve is normally open. The upper end of the vertical air duct 10 is inclined forward along the vehicle driving direction.

[0024] The three-way reversing valve 8 is a solenoid valve. A temperature sensor is installed inside the cargo box body 5, and the temperature sensor is electrically connected to the three-way reversing valve 8, enabling intelligent control of the heating process of the cargo box body. When the internal temperature of the cargo box body is lower than the set value, exhaust gas is introduced into the heating chamber; when the set value is reached, the exhaust gas is directly discharged, achieving precise temperature control, improving energy utilization efficiency, and preventing overheating inside the cargo box body.

[0025] Exhaust gas enters the heating chamber through the intake device and then exits through a vertical air duct at the rear of the heating chamber, pushing water vapor upwards to reduce interference with the driver's rear view. Furthermore, as the exhaust gas rises, water vapor condenses on the inner wall of the air duct and exits through the bottom water outlet, reducing the water content in the exhaust gas. A three-way reversing valve can control the exhaust gas flow as needed, allowing the exhaust heat to be used to heat the bottom of the cargo box or to directly exhaust the exhaust gas, making heating more flexible and improving energy efficiency.

[0026] Furthermore, such as Figure 3As shown, the rear end of the cargo box heating air inlet pipe 3 is provided with a vertically arranged flexible pipe. The lower end of the flexible pipe is connected to the cargo box heating air inlet pipe 3, and the upper end of the flexible pipe is connected to the bottom surface of the heating chamber 9. A buffer mechanism 4 is provided at the connection between the cargo box heating air inlet pipe 3 and the cargo box body 5. The rear end of the cargo box heating air inlet pipe 3 is also provided with a spring base 401. The bottom of the heating chamber 9 is provided with a spring connecting seat 403. A spring 402 is provided between the spring base 401 and the spring connecting seat 403. The spring 402 is sleeved on the outside of the flexible pipe.

[0027] The vertical flexible tube at the rear end of the cargo box heating air intake pipe adapts to the relative displacement of the cargo box body and the heating air intake pipe during vehicle movement, preventing pipe damage caused by rigid connections and making the exhaust mechanism more reliable and stable. A buffer mechanism is installed at the connection between the cargo box heating air intake pipe and the cargo box to reduce vibration and impact from exhaust gas flow, lowering the risk of damage to the connection, extending service life, reducing noise, and making driving more comfortable. A spring exists between the spring base at the rear end of the heating air intake pipe and the spring connecting seat at the bottom of the heating chamber, sleeved on the flexible tube, further enhancing the buffering of the connection. When the vehicle bumps, the spring absorbs vibration energy, protecting the flexible tube and connection, ensuring stable exhaust gas delivery, and allowing the heating chamber to operate normally.

[0028] Example 2 This embodiment further provides a methanol mining truck, which adopts the methanol mining truck cargo box structure provided in Embodiment 1.

[0029] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows: This solution, by setting a vertical air duct at the rear of the cargo box body, guides water vapor to a high position for emission, reducing interference with the driver's rear view. Furthermore, as the exhaust gas rises through the vertical air duct, water vapor condenses and is discharged from the bottom water outlet, reducing the water content of the exhaust gas. The upper end of the vertical air duct is tilted forward, further promoting water vapor condensation. The normally open drain valve at the water outlet can promptly discharge condensate, preventing water accumulation from affecting exhaust gas emission efficiency and corroding the inner wall of the air duct, thus extending the service life of the vertical air duct. The three-way reversing valve of the air intake device can flexibly control the exhaust gas flow direction, in conjunction with the cargo box body... Temperature sensors and solenoid valves inside the cargo box enable intelligent and precise temperature control during the heating process, improving energy efficiency and preventing overheating. Support columns inside the heating chamber enhance structural strength, while their mesh-like air duct design improves the thermal efficiency of exhaust gases and the bottom of the cargo box. The buffer mechanism at the connection between the cargo box heating intake pipe and the cargo box body uses a flexible tube and an externally fitted spring to reduce exhaust gas flow vibration and impact, adapt to relative displacement caused by vehicle bumps, protect the connection parts, improve the reliability and stability of the exhaust system, reduce noise, and enhance driving comfort.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A methanol mining truck cargo box structure, comprising a cargo box body (5) and an exhaust mechanism, characterized in that, The exhaust mechanism includes an air intake device and a heating device. The heating device includes a heating chamber (9). The heating chamber (9) is a hollow plate-shaped box structure. The heating chamber (9) is located at the bottom of the cargo box body (5) and its area is adapted to the bottom area of ​​the cargo box body (5). Along the vehicle driving direction, the air intake device is connected to the front of the heating chamber (9). The rear of the heating chamber (9) is provided with a vertical air passage (10). The upper end of the vertical air passage (10) is provided with a smoke exhaust port (7), and the lower end of the vertical air passage (10) is provided with a water outlet (6).

2. The methanol mining truck cargo box structure according to claim 1, characterized in that, The intake device includes an exhaust pipe (1) that can be connected to the vehicle engine. The exhaust pipe (1) is connected to a three-way reversing valve (8). The first outlet of the three-way reversing valve (8) is connected to a cargo box heating intake pipe (3). The cargo box heating intake pipe (3) is connected to the heating chamber (9). The second outlet of the three-way reversing valve is connected to an exhaust pipe (2). The tail end of the exhaust pipe (2) is connected to the outside atmosphere.

3. The methanol mining truck cargo box structure according to claim 2, characterized in that, A buffer mechanism (4) is provided at the connection between the cargo box heating air inlet pipe (3) and the cargo box body (5).

4. The methanol mining truck cargo box structure according to claim 3, characterized in that, The rear end of the cargo box heating air inlet pipe (3) is provided with a vertically arranged flexible pipe. The lower end of the flexible pipe is connected to the cargo box heating air inlet pipe (3), and the upper end of the flexible pipe is connected to the bottom surface of the heating chamber (9).

5. The methanol mining truck cargo box structure according to claim 4, characterized in that, The rear end of the cargo box heating air inlet pipe (3) is also provided with a spring base (401), and the bottom of the heating chamber (9) is provided with a spring connecting seat (403). A spring (402) is provided between the spring base (401) and the spring connecting seat (403), and the spring (402) is sleeved on the outside of the flexible tube.

6. The methanol mining truck cargo box structure according to claim 1, characterized in that, The upper end of the vertical air passage (10) is tilted forward along the vehicle's driving direction.

7. The methanol mining truck cargo box structure according to claim 1, characterized in that, A drain valve is provided at the water outlet (6), and the drain valve is normally open.

8. The methanol mining truck cargo box structure according to claim 1, characterized in that, The heating chamber (9) is provided with multiple support columns connecting the top surface of the heating chamber (9) and the ground. The support columns are square and divide the inner cavity of the heating chamber (9) into a grid-like air passage.

9. The methanol mining truck cargo box structure according to claim 3, characterized in that, The three-way reversing valve (8) is a solenoid valve. A temperature sensor is installed inside the cargo box body (5), and the temperature sensor is electrically connected to the three-way reversing valve (8).

10. A methanol mining card, characterized in that, The methanol mining truck cargo box structure described in any one of claims 1-9 is adopted.

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