Hydrogen supply system for mine car

Abstract

The invention relates to the technical field of new energy, and discloses a mine car hydrogen supply system which comprises a high-pressure hydrogen inlet pipeline, the gas inlet end of the high-pressure hydrogen inlet pipeline is connected with a hydrogenation assembly used for hydrogenation, the high-pressure hydrogen inlet pipeline is connected with a hydrogen storage system, and the hydrogen using end of the hydrogen storage system communicates with a high-pressure hydrogen using pipeline. The output end of the high-pressure hydrogen pipeline is controllably communicated with a plurality of sets of fuel cell systems; the hydrogen storage system comprises a plurality of hydrogen cylinders which are connected in parallel; any hydrogen cylinder is respectively communicated with the high-pressure hydrogen inlet pipeline and the high-pressure hydrogen pipeline; according to the arrangement structure, the hydrogen storage amount is averagely distributed, the hydrogen utilization rate is improved, and the service life of the fuel cell and the hydrogen bottle is prolonged.

Description

Technical Field

[0001] The present application relates to the field of new energy technology, and specifically to a hydrogen supply system for a mine car. Background Art

[0002] At present, in the field of new energy mining cars, there are mainly two different technical routes: pure electric and hydrogen fuel cell hybrid. Due to the shortcomings of lithium batteries such as long charging time, short cruising range, and poor low-temperature adaptability, hydrogen fuel cell mining cars have developed rapidly in recent years. However, due to the high power demand and long cruising range of mining cars, the power system of a mining car is often composed of multiple sets of fuel cells. At the same time, in order to meet the hydrogen consumption requirements of mining cars, more hydrogen bottles need to be configured, and hydrogen bottles often need to be arranged in a decentralized manner. Multiple hydrogen bottles provide hydrogen to multiple sets of fuel cells, which often results in uneven hydrogen distribution. On the one hand, it will affect the power performance, and on the other hand, it will lead to the life of the fuel cell and hydrogen bottle.

[0003] Application Contents

[0004] The purpose of this application is to provide a mining car hydrogen supply system with a layout structure that achieves maximum even distribution of hydrogen storage, improves hydrogen utilization, and increases the service life of fuel cells and hydrogen bottles.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A hydrogen supply system for a mining vehicle of the present invention comprises a high-pressure hydrogen inlet pipeline, wherein the inlet end of the high-pressure hydrogen inlet pipeline is connected to a hydrogenation assembly for hydrogenation, the high-pressure hydrogen inlet pipeline is connected to a hydrogen storage system, the hydrogen use end of the hydrogen storage system is connected to the high-pressure hydrogen pipeline, and the output end of the high-pressure hydrogen pipeline is controllably connected to a plurality of fuel cell systems;

[0007] The hydrogen storage system includes a plurality of hydrogen bottles connected in parallel, and any one of the hydrogen bottles is respectively connected to the high-pressure hydrogen inlet pipeline and the high-pressure hydrogen use pipeline.

[0008] Furthermore, the hydrogenation assembly includes a plurality of hydrogenation ports, and any of the hydrogenation ports is connected to the high-pressure hydrogen pipeline via a one-way valve.

[0009] Furthermore, any of the hydrogen filling ports is connected to an infrared temperature sensor for detecting the temperature of the hydrogen.

[0010] Furthermore, the hydrogen discharge end of the hydrogen storage system is connected to a hydrogen discharge pipeline for discharging hydrogen.

[0011] Compared with the prior art, the beneficial effects of this application are:

[0012] In practical applications, the hydrogen inlet ends and hydrogen use ends of all hydrogen bottles are connected in parallel through high-pressure hydrogen inlet pipelines and high-pressure hydrogen use pipelines, and are respectively aggregated together to achieve hydrogen communication between each hydrogen bottle. When hydrogen is refueled through the hydrogen refueling assembly, the gas storage capacity of each hydrogen bottle is ensured to remain consistent; when hydrogen is used, the hydrogen storage capacity of the hydrogen bottles in the hydrogen storage system is evenly distributed to each fuel cell system through the high-pressure hydrogen use pipeline, so that the hydrogen storage capacity in the hydrogen storage system is evenly distributed; the layout structure of the present application realizes the average distribution of hydrogen storage capacity, improves hydrogen utilization, and increases the service life of fuel cells and hydrogen bottles. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the electrical structure of this application. DETAILED DESCRIPTION

[0015] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0016] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show the layers related to the present invention rather than being drawn according to the number, shape and size of the layers in actual implementation. In actual implementation, the type, quantity and proportion of each layer may be changed arbitrarily, and the layer layout may also be more complicated.

[0017] In the following description, numerous details are discussed to provide a more thorough explanation of embodiments of the present invention; however, it is apparent to one skilled in the art that embodiments of the present invention may be practiced without these specific details.

[0018] See also Figure 1, a hydrogen supply system for a mining vehicle, comprising a high-pressure hydrogen inlet pipeline, the inlet end of the high-pressure hydrogen inlet pipeline is connected to a hydrogenation assembly for hydrogenation, the high-pressure hydrogen inlet pipeline is connected to a hydrogen storage system, the hydrogen use end of the hydrogen storage system is connected to the high-pressure hydrogen pipeline, and the output end of the high-pressure hydrogen pipeline is controllably connected to multiple fuel cell systems;

[0019] The hydrogen storage system includes a plurality of hydrogen bottles connected in parallel, and any one of the hydrogen bottles is respectively connected to the high-pressure hydrogen inlet pipeline and the high-pressure hydrogen use pipeline.

[0020] In practical applications, the hydrogen inlet ends and hydrogen use ends of all hydrogen bottles are connected in parallel through high-pressure hydrogen inlet pipelines and high-pressure hydrogen use pipelines, and are respectively aggregated together to achieve hydrogen communication between each hydrogen bottle. When hydrogen is refueled through the hydrogen refueling assembly, the gas storage capacity of each hydrogen bottle is ensured to remain consistent; when hydrogen is used, the hydrogen storage capacity of the hydrogen bottles in the hydrogen storage system is evenly distributed to each fuel cell system through the high-pressure hydrogen use pipeline, so that the hydrogen storage capacity in the hydrogen storage system is evenly distributed; the layout structure of the present application realizes the average distribution of hydrogen storage capacity, improves hydrogen utilization, and increases the service life of fuel cells and hydrogen bottles.

[0021] See also Figure 1 The hydrogenation assembly includes a plurality of hydrogenation ports, and any of the hydrogenation ports is connected to the high-pressure hydrogen pipeline through a one-way valve.

[0022] In this embodiment, three hydrogen filling ports can be provided, and the hydrogen filling ports can be filled simultaneously, which effectively shortens the hydrogen filling time; each hydrogen filling port is provided with a one-way valve for preventing hydrogen backflow.

[0023] See also Figure 1 Any of the hydrogenation ports is connected to an infrared temperature sensor for detecting the temperature of the hydrogen.

[0024] In this embodiment, the infrared temperature sensor is used to detect the hydrogen temperature of each hydrogen filling port. Temperature control can prevent the occurrence of uneven temperature and pressure during simultaneous filling.

[0025] See also Figure 1 The high-pressure hydrogen pipeline is controllably connected to multiple sets of the fuel cell systems through multiple pressure reducing valves, and the multiple pressure reducing valves are connected in parallel. The air inlet end of the pressure reducing valve is connected to the high-pressure hydrogen pipeline, and the air outlet end of the pressure reducing valve is connected to the corresponding fuel cell system.

[0026] In this embodiment, the pressure reducing valve is used to regulate and meet the hydrogen pressure required by the corresponding connected fuel cell system.

[0027] See also Figure 1 The hydrogen discharge end of the hydrogen storage system is connected to a hydrogen discharge pipeline for discharging hydrogen.

[0028] In this embodiment, the hydrogen discharge ends of the hydrogen bottles of the hydrogen storage system are brought together through a hydrogen discharge pipeline, thereby effectively avoiding uneven hydrogen discharge speed.

[0029] In the above-mentioned embodiments, although the present invention has been described in conjunction with the specific embodiments of the present invention, many replacements, modifications and variations of these embodiments will be apparent to those of ordinary skill in the art based on the foregoing description. The embodiments of the present invention are intended to cover all such replacements, modifications and variations falling within the broad scope of the appended claims.

[0030] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A hydrogen supply system for a mine car, characterized in that: It comprises a high-pressure hydrogen inlet pipeline, the inlet end of which is connected to a hydrogenation assembly for hydrogenation, the high-pressure hydrogen inlet pipeline is connected to a hydrogen storage system, the hydrogen use end of the hydrogen storage system is connected to the high-pressure hydrogen pipeline, and the output end of the high-pressure hydrogen pipeline is controllably connected to multiple fuel cell systems; The hydrogen storage system includes a plurality of hydrogen bottles connected in parallel, and any one of the hydrogen bottles is respectively connected to the high-pressure hydrogen inlet pipeline and the high-pressure hydrogen use pipeline.

2. A mining car hydrogen supply system according to claim 1, characterized in that: The hydrogenation assembly includes a plurality of hydrogenation ports, and any of the hydrogenation ports is connected to the high-pressure hydrogen pipeline via a one-way valve.

3. A mining car hydrogen supply system according to claim 2, characterized in that: Any of the hydrogenation ports is connected to an infrared temperature sensor for detecting the temperature of the hydrogen.

4. A mining vehicle hydrogen supply system according to claim 1, characterized in that: The hydrogen discharge end of the hydrogen storage system is connected with a hydrogen discharge pipeline for discharging hydrogen.

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