Tail exhaust system of hydrogen fuel tractor

Abstract

The utility model discloses a hydrogen fuel tractor tail exhaust system which comprises a water collecting tank, a low liquid level sensor and a high liquid level sensor which are used for monitoring the liquid level in the water collecting tank are arranged on the water collecting tank, a tail exhaust inlet connector and a tail exhaust pipe which are communicated with the interior of the water collecting tank are arranged on the water collecting tank, and a water drainage pipe is installed on the surface of the water collecting tank. A valve for controlling the drainage of the drainage pipe is mounted on the drainage pipe. The device is simple in structure, gas and water generated during power generation of the electric propulsion system are accelerated through mutual matching of the water collecting tank, the low liquid level sensor, the high liquid level sensor, the water discharging pipe and the valve, meanwhile, separated water in the water collecting tank can be discharged in time in real time, and therefore it can be guaranteed that the tail discharging structure is always kept in the running state, and the service life of the tail discharging structure is prolonged. And secondly, gas-water separation can be greatly increased, and meanwhile, the tail exhaust structure design changes the gas flow rate and direction, so that the effect of changing the tone is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen fuel tractors, in particular to a tail exhaust system of a hydrogen fuel tractor. Background Art

[0002] At present, hydrogen energy has gradually become one of the energy sources that the world pays attention to, prompting the application of hydrogen fuel products to be studied and paid attention to by all walks of life.

[0003] Hydrogen fuel tractors are currently mainly used in large ports and airports, where they perform alternating indoor and outdoor operations. The exhaust gas generated by the fuel cell reaction contains a large amount of water vapor. If the tail exhaust system is not treated, the ground at the user's work site will become wet and slippery, posing a work safety risk and a poor working environment. At the same time, if the tail exhaust is not treated, the system will have a loud operating noise and a poor driving experience. Therefore, a tail exhaust system for a hydrogen fuel tractor is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a tail exhaust system for a hydrogen fuel tractor to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tail discharge system for a hydrogen fuel tractor, comprising a water collecting tank, the water collecting tank being provided with a low liquid level sensor and a high liquid level sensor for monitoring the liquid level in the water collecting tank, the water collecting tank being provided with a tail discharge inlet interface and a tail discharge pipe connected to the interior thereof, a drain pipe being installed on the surface of the water collecting tank, and a valve being installed on the drain pipe for controlling whether the drain pipe discharges water.

[0006] As a further solution of the utility model: one end of the drain pipe is connected to the water collecting tank, and a three-way joint is installed at the end of the drain pipe away from the water collecting tank.

[0007] As a further solution of the utility model: the valve includes a drainage solenoid valve and a manual valve connected to a three-way joint, and the drainage pipe, the drainage solenoid valve and the manual valve are respectively located at three ports of the three-way joint.

[0008] As a further solution of the utility model: the water collecting tank is a special-shaped box body, and its overall structure is narrow at the top and wide at the bottom.

[0009] As a further solution of the utility model: the high liquid level sensor is installed on the top of the water collecting tank, and the low liquid level sensor is installed in the middle of the water collecting tank.

[0010] As a further solution of the utility model: the tail discharge inlet interface includes a trumpet pipe and a U-shaped pipe that are integrally arranged, one end of the U-shaped pipe is connected to the water collecting tank, and the end of the trumpet pipe away from the U-shaped pipe is connected to the battery stack.

[0011] As a further solution of the utility model: the water collecting box is connected to the bottom plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Through the cooperation of the water collecting tank, low liquid level sensor, high liquid level sensor, drain pipe and valve, the gas and water generated by the electric propulsion system during power generation can be accelerated, and the separated water in the water collecting tank can be discharged in real time. This can ensure that the tail discharge structure always remains in operation, and avoid the whole vehicle being restricted from running when the liquid level in the water collecting tank is full, and it needs to stop for drainage before normal use.

[0014] 2. The setting of water collecting tank, tail discharge inlet interface and tail discharge pipe can greatly increase the separation of gas and water. At the same time, the tail discharge structure design changes the gas flow rate and direction, which will also affect the tail discharge sound and achieve the effect of changing the timbre. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the tail row structure of the utility model;

[0016] Figure 2 It is a side view schematic diagram of the tail exhaust structure of the utility model;

[0017] In the figure: 1. Water collecting tank; 2. Low liquid level sensor; 3. High liquid level sensor; 4. Tail discharge inlet interface; 5. Tail discharge pipe; 6. Drain pipe; 7. Drain solenoid valve; 8. Manual valve; 9. Bottom plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2 In an embodiment of the utility model, a tail discharge system of a hydrogen fuel tractor includes a water collecting tank 1, on which a low liquid level sensor 2 and a high liquid level sensor 3 for monitoring the liquid level in the water collecting tank 1 are fixedly installed, and a tail discharge inlet interface 4 and a tail discharge pipe 5 connected to the interior of the water collecting tank 1 are installed, and a drain pipe 6 is installed on the surface of the water collecting tank 1, and a valve for controlling whether the drain pipe 6 drains water is installed on the drain pipe 6.

[0020] Through the design of the above technical solution, the water collecting tank 1 is specifically a special-shaped box body, and its overall structure is narrow at the top and wide at the bottom. The interior of the water collecting tank 1 can be divided into three liquid level levels, namely liquid level level 1: the liquid level is below the low liquid level sensor 2; liquid level 2: the liquid level covers the low liquid level sensor 2 and is below the high liquid level sensor 3; liquid level 3: the liquid level covers the low liquid level sensor 2 and the high liquid level sensor 3; when the liquid level level is at 1, there is no need to drain the interior of the water collecting tank 1, when the liquid level level is at 2, the staff can selectively drain the interior of the water collecting tank 1, and when the liquid level level is at 3, the liquid level of the water collecting tank 1 is full and needs to be drained. When draining, the valve that controls whether the drain pipe 6 is drained is opened, so that the water in the water collecting tank 1 can be discharged.

[0021] See also Figure 1 In one embodiment, in this embodiment, preferably, one end of the drain pipe 6 is connected to the water collecting tank 1, and a three-way joint is installed at the end of the drain pipe 6 away from the water collecting tank 1; the valve includes a drain solenoid valve 7 and a manual valve 8 connected to the three-way joint, and the drain pipe 6, the drain solenoid valve 7 and the manual valve 8 are respectively located at the three ports of the three-way joint.

[0022] Specifically, the drain pipe 6 is installed on the side wall of the water collecting tank 1 near the bottom. Since the drain pipe 6 is installed at a lower position, the water in the water collecting tank 1 can be discharged as much as possible. The port of the drain pipe 6 is connected to the drain solenoid valve 7 and the manual valve 8 through a three-way joint. In this way, the drain solenoid valve 7 can be electrically controlled to discharge the water in the water collecting tank 1 through the drain pipe 6. At the same time, the manual valve 8 drainage pipeline is retained, which can cope with the situation where the drain solenoid valve 7 fails and cannot drain the water.

[0023] See also Figure 1 In one embodiment, in this embodiment, preferably, the tail discharge inlet interface 4 includes an integrally arranged trumpet pipe and a U-shaped pipe, one end of the U-shaped pipe is connected to the water collecting tank 1, and the end of the trumpet pipe away from the U-shaped pipe is connected to the battery stack (not shown in the figure).

[0024] Specifically, the high-temperature steam from the tail exhaust of the fuel cell stack passes through the trumpet-type condensation input interface and the tail discharge inlet interface 4. This structure can increase the heat dissipation area of ​​the pipeline, accelerate the separation of gas and water, and make part of the gas and water condense into water droplets and enter the water collecting tank 1. It also increases the contact surface between the box and the air, which is beneficial to the separation of gas and water. The remaining part of the gas and water is discharged through the tail discharge pipe 5 of the air outlet pipeline at the top of the water collecting tank 1. In this way, the content of water molecules in the treated and discharged gas and water is lower than that in the gas and water before treatment, which effectively prevents the ground at the user's work site from becoming wet and slippery. Secondly, the U-shaped pipe and the tail discharge pipe 5 can change the flow speed and pressure of gas and water, thereby affecting the propagation and reflection of sound, and then changing the timbre.

[0025] See also Figure 1In one embodiment, in this embodiment, preferably, the water collecting tank 1 is connected to the base plate 9. Furthermore, the high liquid level sensor 3, the low liquid level sensor 2, the water collecting tank 1, the tail discharge inlet interface 4, the manual valve 8, the tail discharge pipe 5, etc. are all installed on the base plate 9 for integration, so as to facilitate the tail discharge system to complete the vehicle assembly.

[0026] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0027] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A tail exhaust system for a hydrogen fuel tractor, comprising a water collecting tank (1), characterized in that: The water collecting tank (1) is provided with a low liquid level sensor (2) and a high liquid level sensor (3) for monitoring the liquid level in the water collecting tank (1), the water collecting tank (1) is provided with a tail discharge inlet interface (4) and a tail discharge pipe (5) communicating with the interior thereof, a drain pipe (6) is installed on the surface of the water collecting tank (1), and the drain pipe (6) is provided with a valve for controlling whether the drain pipe (6) discharges water.

2. The hydrogen fuel tractor tail exhaust system according to claim 1, characterized in that: One end of the drainage pipe (6) is connected to the water collecting tank (1), and a three-way joint is installed at the end of the drainage pipe (6) away from the water collecting tank (1).

3. The hydrogen fuel tractor tail exhaust system according to claim 2, characterized in that: The valve comprises a drainage solenoid valve (7) and a manual valve (8) connected to a three-way joint, and the drainage pipe (6), the drainage solenoid valve (7) and the manual valve (8) are respectively located at three ports of the three-way joint.

4. The hydrogen fuel tractor tail exhaust system according to claim 1, characterized in that: The water collecting box (1) is a special-shaped box body, and its overall structure is narrow at the top and wide at the bottom.

5. The hydrogen fuel tractor tail exhaust system according to claim 1, characterized in that: The high liquid level sensor (3) is installed on the top of the water collecting tank (1), and the low liquid level sensor (2) is installed in the middle of the water collecting tank (1).

6. The hydrogen fuel tractor tail exhaust system according to claim 1, characterized in that: The tail discharge inlet interface (4) comprises an integrally arranged trumpet pipe and a U-shaped pipe, one end of the U-shaped pipe is connected to the water collecting tank (1), and the end of the trumpet pipe away from the U-shaped pipe is connected to the battery stack.

7. The tail exhaust system of a hydrogen fuel tractor according to claim 3, characterized in that: The water collecting tank (1) is connected to the bottom plate (9).

Images