CN219154234U - Vehicle-mounted hydrogen storage system and tractor - Google Patents

Abstract

The application relates to the technical field of vehicle engineering, in particular to a vehicle-mounted hydrogen storage system and a tractor. The utility model provides a vehicle-mounted hydrogen storage system which is arranged on a tractor and comprises: the hydrogen storage cylinder module comprises a first hydrogen storage cylinder assembly module and a second hydrogen storage cylinder assembly module, the tractor comprises a frame, a cab and a container, the first hydrogen storage cylinder assembly module is arranged above the cab, and the second hydrogen storage cylinder assembly module is arranged below the frame and at least one part of the second hydrogen storage cylinder assembly module is located in a gap between the cab and the container. The problem of sacrifice packing box length or sacrifice driver's cabin length in the current traditional scheme is solved, the practicality of whole car and the riding comfort and the life experience of driver have been improved.

Description

Vehicle-mounted hydrogen storage system and tractor

Technical Field

The application relates to the technical field of vehicle engineering, in particular to a vehicle-mounted hydrogen storage system and a tractor.

Background

In the large background of energy transformation and 'double carbon' targets, hydrogen energy plays an indispensable important role in a decarburization path as a clean energy source, while a hydrogen fuel cell is used as an important carrier for hydrogen energy transformation, and in recent years, the hydrogen fuel cell is more and more popularized and applied in the field of automobiles, particularly heavy truck commercial vehicles, and must become an indispensable part in the future automobile technical development.

The core components of the hydrogen fuel cell vehicle comprise a fuel cell system, a hydrogen storage system, an air inlet and outlet system, a power cell system, a driving system and the like, wherein the fuel cell system, the hydrogen storage system and the air inlet and outlet system realize the function of converting hydrogen energy into electric energy to provide electric energy for the whole vehicle through mutual cooperation. Hydrogen gas is stored in a hydrogen storage cylinder assembly as fuel for a hydrogen fuel cell.

In the current hydrogen fuel cell vehicles, taking a heavy truck tractor as an example, most of whole vehicle manufacturers adopt the technical scheme that the frame and the cab of the traditional fuel oil vehicle are utilized to reform the vehicle into a fuel cell vehicle type, a fuel cell system is arranged below the cab, and a hydrogen storage system is arranged behind the cab (back type).

As described above, most of the existing hydrogen fuel cell vehicles are fuel vehicles, the fuel cell system is disposed below the cab, and the hydrogen storage cylinder assembly is disposed behind the cab, which is illustrated with reference to fig. 1.

The current state regulations require that the overall length of the long-head tractor should not exceed 18.1 meters and that the overall length of the short-head tractor should not exceed 17.1 meters, and the shortcomings of the prior art solutions are now illustrated by the long-head tractor.

As shown in fig. 2, the cargo box of the heavy truck tractor rotates around the central axis of the saddle of the whole truck as an axis in the turning process, the gap between the cab and the cargo box is further compressed, and when the whole truck is required to have a longer endurance mileage, a correspondingly large number of hydrogen storage cylinder assemblies are needed to store hydrogen, and under the condition that the whole truck length is limited, the hydrogen storage cylinder assemblies are arranged behind the cab at this time, and enough hydrogen storage cylinder assembly arrangement space is reserved by shortening the length of the cargo box or the length of the cab. Therefore, if the length of the container is shortened, the cargo space is reduced, and even the 40-foot standard container cannot be pulled and loaded because the length of the container is insufficient, so that the practicability of the truck is greatly reduced. If the length of the cab is shortened, the working and living space of the driver is reduced, so that more practical products such as a vehicle-mounted refrigerator, a vehicle-mounted washing machine or a wider bed and the like are not arranged in the cab enough, and the comfort and living experience of the driver are reduced.

In view of this, the present utility model has been made.

Disclosure of Invention

The utility model aims at providing a on-vehicle hydrogen storage system and tractor, can compromise the whole car continuation of journey mileage again and do not sacrifice packing box or driver's cabin length, improve the practicality of whole car and the travelling comfort and the life experience of driver.

In order to achieve the above object, in a first aspect, the present utility model provides a vehicle-mounted hydrogen storage system, mounted on a tractor, comprising: the hydrogen storage cylinder module comprises a first hydrogen storage cylinder assembly module and a second hydrogen storage cylinder assembly module, the tractor comprises a frame, a cab and a container, the first hydrogen storage cylinder assembly module is arranged above the cab, and the second hydrogen storage cylinder assembly module is arranged below the frame and at least one part of the second hydrogen storage cylinder assembly module is located in a gap between the cab and the container.

In an alternative embodiment, the cab and the frame are both connected with a gas cylinder frame, and the gas cylinders of the first and second hydrogen storage cylinder assembly modules are mounted in the gas cylinder frame.

In an alternative embodiment, an external decorative plate and a guide cover are arranged on the top of the cab, and the first hydrogen storage cylinder assembly module is installed in a space formed by the cab, the external decorative plate and the guide cover in a surrounding mode.

In an alternative embodiment, a fuel cell system is connected to the hydrogen storage cylinder module, and the fuel cell system is disposed below the cab.

In an alternative embodiment, the hydrogen storage cylinder module is connected with an overflow valve through a gas pipeline, a pressure sensor is connected to the gas pipeline, and the pressure sensor is arranged between the overflow valve and the hydrogen storage cylinder module.

In an optional implementation manner, the overflow valve is connected with an air inlet branch, and the air inlet branch is sequentially provided with a hydrogenation port, a filter and a one-way valve, and external air supply sequentially passes through the hydrogenation port, the filter and the one-way valve and then enters the hydrogen storage cylinder module through the overflow valve.

In an alternative embodiment, the overflow valve is further connected with an air outlet branch, a pressure reducing valve is arranged on the air outlet branch, hydrogen in the hydrogen storage cylinder module enters the fuel cell system after passing through the pressure reducing valve, and the air outlet branch is connected with a safety valve and a manual emptying valve.

In an alternative embodiment, the first hydrogen storage cylinder assembly module and the second hydrogen storage cylinder assembly module are arranged in parallel and share the overflow valve.

In an alternative embodiment, the first hydrogen storage cylinder assembly module and the second hydrogen storage cylinder assembly module are independently arranged and respectively comprise a corresponding air inlet branch, an overflow valve, a pressure sensor and a pressure reducing valve.

In a second aspect, the present utility model provides a tractor comprising the on-board hydrogen storage system of any of the preceding embodiments.

Through setting up hydrogen storage cylinder module dispersion, and set up the below in the top of driver's cabin and frame respectively, make full use of the space of whole car floor and driver's cabin top, solved the problem of sacrifice packing box length or sacrifice driver's cabin length among the current traditional scheme, improved practicality and the riding comfort and the living experience of driver of whole car.

At least one part of the second hydrogen storage cylinder assembly module is arranged in a gap between the cab and the container, so that more sufficient installation space can be provided for other branch systems such as a power battery system, and the structural compactness of the whole vehicle is effectively enhanced.

Additional features and advantages of the present application will be set forth in the detailed description which follows.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the mounting position of a hydrogen storage cylinder on a finished vehicle in the prior art;

FIG. 2 is a schematic diagram of the change in position of a cargo box during cornering of a conventional heavy truck tractor;

FIG. 3 is a schematic diagram of the structure of the on-board hydrogen storage system of the present application on a tractor;

FIG. 4 is a schematic diagram of the fuel cell system and the power cell system of the present application on a tractor;

FIG. 5 is a schematic structural diagram of the vehicle-mounted hydrogen storage system in embodiment 1 of the present application;

fig. 6 is a schematic structural diagram of the vehicle-mounted hydrogen storage system in embodiment 2 of the present application.

Icon:

1-a cab; 11-an outer plaque; 12-a diversion cover;

2-a container;

3-a frame;

4-a hydrogen storage cylinder module; 41-a first hydrogen storage cylinder assembly module; 42-a first hydrogen storage cylinder assembly module;

5-overflow valve; 51-gas pipeline; 52-a pressure sensor;

6-an air inlet branch; 61-hydrogenation port; 62-a filter; 63-a one-way valve;

7-an air outlet branch; 71-a pressure reducing valve; 72-a safety valve; 73-manual drain valve;

an 8-fuel cell system;

9-power battery system.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the embodiments described are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put when the product of the application is used, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Referring to fig. 3, a schematic diagram of the structure of the on-board hydrogen storage system on the tractor is shown, and the fuel cell system 8 and the power cell system 9 of fig. 4 are combined.

The vehicle-mounted hydrogen storage system is mainly applied to a tractor, specifically, the top of a cab 1 of the tractor and the bottom space of a frame 3 are comprehensively utilized, the length of a cargo box 2 or the length of the cab 1 are not sacrificed, the layout of the vehicle-mounted hydrogen storage system on the tractor is replaced, and the practicality of the whole vehicle and riding comfort and living experience of a driver are improved.

The vehicle-mounted hydrogen storage system provided by the utility model is arranged on a tractor and particularly comprises a hydrogen storage cylinder module 4, wherein the hydrogen storage cylinder module 4 comprises a first hydrogen storage cylinder assembly module 41 and a second hydrogen storage cylinder assembly module 42, and the hydrogen storage cylinder module 4 can be distributed and arranged at different positions on the tractor by being divided into two modules, so that the flexibility of space arrangement is improved.

Further, the tractor comprises a frame 3, a cab 1 and a cargo box 2, wherein a first hydrogen storage cylinder assembly module 41 is arranged above the cab 1, the top space of the cab 1 is fully utilized, and a second hydrogen storage cylinder assembly module 42 is arranged below the frame 3, and the bottom space of the frame 3 is fully utilized.

By disposing at least a portion of the second hydrogen storage cylinder assembly module 42 in the gap between the cab 1 and the cargo box 2, more installation space can be provided for other branch systems, so that a smaller footprint, such as the power cell system 9, can be disposed at the bottom of the frame 3, freeing up more space to be effectively occupied.

According to the utility model, the layout form of the vehicle-mounted hydrogen storage system on the tractor does not occupy the gap between the cab 1 and the container 2, so that the length of the container 2 and the length of the cab 1 are ensured to the greatest extent, and the practicability of the whole vehicle and riding comfort of a driver are improved.

The cab 1 and the frame 3 are connected with a gas cylinder frame, and the gas cylinders of the first hydrogen storage gas cylinder assembly module 41 and the second hydrogen storage gas cylinder assembly module 42 are installed in the gas cylinder frame.

Specifically, the gas cylinder frame on the first hydrogen storage cylinder assembly module 41 is connected with the body of the cab 1, the top of the cab 1 is provided with the external decorative plate 11 and the air guide sleeve 12, the first hydrogen storage cylinder assembly module 41 is installed in a space formed by surrounding the cab 1, the external decorative plate 11 and the air guide sleeve 12, and the air guide sleeve 12 and the external decorative plate 11 shield the first hydrogen storage cylinder assembly module 41.

The gas cylinder frame on the second hydrogen storage gas cylinder assembly module 42 is arranged below the whole vehicle frame 3 and is connected with the frame 3, so that the gas cylinders of the second hydrogen storage gas cylinder assembly module 42 can be stored.

The hydrogen storage cylinder module 4 is connected with the fuel cell system 8 for carry hydrogen to the fuel cell system 8, the fuel cell system 8 sets up in the below of driver's cabin 1 to with power battery system 9 position relatively, fuel cell system 8 and power battery system 9 make full use of the lower part space of driver's cabin 1, through setting up both at the locomotive position, simplified the pipeline layout between hydrogen storage cylinder module 4 and the fuel cell system 8, and improved the steady reliability of hydrogen transmission process.

Based on the arrangement of the above systems on the whole vehicle, the hydrogen in the present utility model is specifically transferred between the hydrogen storage cylinder module 4 and the fuel cell system 8.

The hydrogen storage cylinder module 4 is connected with an overflow valve 5 through a gas transmission pipeline 51, and the overflow valve 5 is mainly used for inputting hydrogen into the hydrogen storage cylinder module 4 under an external supply working condition and outputting hydrogen from the hydrogen storage cylinder module 4 to the fuel cell system 8.

The gas transmission pipeline 51 is connected with a pressure sensor 52, and the pressure sensor 52 is arranged between the overflow valve 5 and the hydrogen storage cylinder module 4 and is used for detecting the hydrogen pressure of the hydrogen storage cylinder module 4.

The overflow valve 5 is connected with an air inlet branch 6, and the air inlet branch 6 is mainly used for inputting external air supply, specifically, the air inlet branch 6 is sequentially provided with a hydrogenation port 61, a filter 62 and a one-way valve 63, and the external air supply sequentially passes through the hydrogenation port 61, the filter 62 and the one-way valve 63 and then enters the hydrogen storage cylinder module 4 through the overflow valve 5.

Besides being connected with the gas inlet branch 6, the overflow valve 5 is also connected with the gas outlet branch 7, and the gas outlet branch 7 is mainly used for outputting hydrogen from the hydrogen storage cylinder module 4 to the fuel cell system 8. The pressure reducing valve 71 is arranged on the gas outlet branch 7, hydrogen in the hydrogen storage cylinder module 4 enters the fuel cell system 8 after being depressurized by the pressure reducing valve 71, the gas outlet branch 7 is connected with the safety valve 72 and the manual emptying valve 73, the safety valve 72 is specifically used for preventing the pressure reducing valve 71 from being invalid, the pressure of the hydrogen conveyed to the fuel cell system 8 is prevented from being too high through the safety valve 72, and the fuel cell system 8 is prevented from being damaged by high-pressure hydrogen in an emptying and discharging mode.

The hydrogen storage cylinder module 4 specifically comprises a cylinder body, a bottleneck valve and a tail valve, wherein the two hydrogen storage cylinder modules 4 in the application can be arranged in parallel or in an independent mode, and are specifically described by different embodiments.

Example 1

Referring to fig. 5, in the present embodiment, the first hydrogen storage cylinder assembly module 41 and the second hydrogen storage cylinder assembly module 42 are arranged in parallel, and are connected in parallel to a common overflow valve 5. The pressure sensor 52 is arranged between the overflow valve 5 and the hydrogen storage cylinder module 4 to collect the pressure of hydrogen, the gas is divided into two branches through the overflow valve 5, one branch is connected with the one-way valve 63, the filter 62 and the hydrogenation port 61 included in the gas inlet branch 6, the other branch is connected with the pressure reducing valve 71 on the gas outlet branch 7 to output the hydrogen to the fuel cell system 8, and the pressure reducing valve 71 and the gas outlet branch 7 of the fuel cell system 8 are also connected with the safety valve 72 and the manual emptying valve 73.

When the system supplies hydrogen to the fuel cell system 8, the operating principles include: the FCU sends a command to the bottleneck valve, the bottleneck valve is opened, hydrogen is discharged from the gas cylinder, and reaches the check valve 63 and the pressure reducing valve 71 after passing through the overflow valve 5, the check valve 63 can be switched on only when external gas is supplied, at this time, the check valve 63 is in a cut-off state, and hydrogen cannot pass through the check valve 63. The hydrogen gas is depressurized through the depressurization valve 71 to an operating pressure that satisfies the demand of the fuel cell system 8 and then enters the fuel cell system 8.

When the pressure reducing valve 71 fails and then the pressure at the rear end of the fuel cell system 8 is increased, the safety valve 72 automatically opens to relieve pressure, so that the damage of high-pressure hydrogen to the fuel cell system 8 is prevented, and the manual emptying valve 73 is used for emptying and relieving pressure of hydrogen in a pipeline through the manual emptying valve 73 when the system needs to be overhauled, so that the damage of high-pressure gas to maintenance personnel is prevented; the pressure sensor 52 between the overflow valve 5 and the gas bottle assembly is responsible for collecting the gas pressure, and when the gas pressure is lower than the lower pressure threshold, the FCU sends a signal indicating hydrogenation.

When the hydrogen storage cylinder module 4 is insufficient in residual hydrogen and needs hydrogenation, the working principle comprises: the fuel cell system 8 stops working, the hydrogenation equipment (hydrogenation gun) is inserted into the hydrogenation port 61, the bottleneck valve is opened, the hydrogen is filtered by the filter 62 to remove impurities therein, then the hydrogen enters the hydrogen storage cylinder module 4 through the one-way valve 63 and the overflow valve 5, and when the pressure sensor 52 detects that the pressure reaches the threshold value, the bottleneck valve is closed, and the hydrogenation is finished.

In the hydrogenation process, the depressurized hydrogen exists in the pipeline between the depressurization valve 71 and the fuel cell system 8, and at this time, the fuel cell system 8 is in a shutdown state, so that the hydrogen in the pipeline is in a cut-off state.

Example 2

Referring to fig. 6, the first hydrogen storage cylinder assembly module 41 and the second hydrogen storage cylinder assembly module 42 in the present embodiment are independently provided, and each include a corresponding gas inlet branch 6, an overflow valve 5, a pressure sensor 52, and a pressure reducing valve 71. The hydrogen in the first hydrogen storage cylinder assembly module 41 and the second hydrogen storage cylinder assembly module 42 is connected in parallel after passing through the pressure reducing valve 71 and then enters the fuel cell system 8, when the vehicle-mounted hydrogen storage system provides hydrogen for the fuel cell system 8, the two modules can work simultaneously, the two modules can work independently, the working principle of external air supply and outputting hydrogen to the fuel cell system 8 is the same, and the details are not repeated here.

By dividing the hydrogen storage cylinder module 4 into two independent modules, when one module fails and stops working, the other module can still continue to supply fuel, so that the normal operation of the whole vehicle is ensured.

The utility model also provides a tractor comprising the vehicle-mounted hydrogen storage system, which can simultaneously meet the requirements of heavy load high torque output and high speed high rotation speed output, and greatly improves the power transmission efficiency.

It should be noted that, without conflict, features in the embodiments of the present application may be combined with each other.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (10)

1. A vehicle-mounted hydrogen storage system mounted on a tractor, comprising: the hydrogen storage cylinder module comprises a first hydrogen storage cylinder assembly module and a second hydrogen storage cylinder assembly module, the tractor comprises a frame, a cab and a container, the first hydrogen storage cylinder assembly module is arranged above the cab, and the second hydrogen storage cylinder assembly module is arranged below the frame and at least one part of the second hydrogen storage cylinder assembly module is located in a gap between the cab and the container.

2. The vehicle-mounted hydrogen storage system of claim 1, wherein the cab and the frame are both connected with a cylinder frame, and the cylinders of the first hydrogen storage cylinder assembly module and the second hydrogen storage cylinder assembly module are mounted in the cylinder frame.

3. The vehicle-mounted hydrogen storage system of claim 2, wherein an exterior trim panel and a dome are provided on top of the cab, and the first hydrogen storage cylinder assembly module is mounted in a space defined by the cab, the exterior trim panel and the dome.

4. A vehicle-mounted hydrogen storage system according to any one of claims 1-3, wherein a fuel cell system is connected to the hydrogen storage cylinder module, the fuel cell system being disposed below the cab.

5. The vehicle-mounted hydrogen storage system of claim 4, wherein the hydrogen storage cylinder module is connected with an overflow valve through a gas pipeline, a pressure sensor is connected to the gas pipeline, and the pressure sensor is arranged between the overflow valve and the hydrogen storage cylinder module.

6. The vehicle-mounted hydrogen storage system according to claim 5, wherein the overflow valve is connected with an air inlet branch, a hydrogenation port, a filter and a one-way valve are sequentially arranged on the air inlet branch, and external air supply sequentially passes through the hydrogenation port, the filter and the one-way valve and then enters the hydrogen storage cylinder module through the overflow valve.

7. The vehicle-mounted hydrogen storage system according to claim 6, wherein the overflow valve is further connected with an air outlet branch, a pressure reducing valve is arranged on the air outlet branch, hydrogen in the hydrogen storage cylinder module enters the fuel cell system after passing through the pressure reducing valve, and the air outlet branch is connected with a safety valve and a manual emptying valve.

8. The on-vehicle hydrogen storage system of claim 7, wherein the first hydrogen storage cylinder assembly module and the second hydrogen storage cylinder assembly module are arranged in parallel and share the overflow valve.

9. The vehicle-mounted hydrogen storage system of claim 7, wherein the first hydrogen storage cylinder assembly module and the second hydrogen storage cylinder assembly module are independently arranged and respectively comprise a corresponding air inlet branch, an overflow valve, a pressure sensor and a pressure reducing valve.

10. A tractor comprising the on-board hydrogen storage system of any one of claims 1-9.

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