CN216280651U

CN216280651U - High-pressure hydrogen storage system of hydrogen energy truck

Info

Publication number: CN216280651U
Application number: CN202120647909.1U
Authority: CN
Inventors: 蔡腾飞; 郝义国; 时志鹏; 王飞; 汪江
Original assignee: Huanggang Grove Hydrogen Automobile Co Ltd
Current assignee: Huanggang Grove Hydrogen Automobile Co Ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2022-04-12
Anticipated expiration: 2031-03-29

Abstract

The utility model provides a high-pressure hydrogen storage system of a hydrogen energy truck, which comprises a fixing frame, a hydrogen conveying pipe and a plurality of hydrogen storage bottles, wherein all the hydrogen storage bottles are arranged in an installation grid of the fixing frame and are locked by a fixing clamp, one end of the hydrogen conveying pipe is provided with an air inlet, the other end of the hydrogen conveying pipe is connected to a pile of the hydrogen energy truck, the opening of each hydrogen storage bottle is connected to the middle part of the hydrogen conveying pipe through a hydrogen conveying branch pipe, a bottleneck valve component is arranged on each hydrogen conveying branch pipe, and a pressure reducing valve component is arranged at the air conveying end of the hydrogen conveying pipe. The utility model has the beneficial effects that: the hydrogen storage bottles of the high-pressure hydrogen storage system are connected to the hydrogen conveying pipe in a parallel connection mode, so that the reliability and the hydrogen storage capacity of the high-pressure hydrogen storage system can be improved; and the tail parts of all the hydrogen storage bottles are connected with the emptying pipe through an air release pipe, and each air release pipe is provided with a temperature driving release device which can enable hydrogen in the hydrogen bottle with overhigh temperature to be discharged through the emptying pipe, thereby improving the safety of the system.

Description

High-pressure hydrogen storage system of hydrogen energy truck

Technical Field

The utility model relates to the technical field of hydrogen energy automobiles, in particular to a high-pressure hydrogen storage system of a hydrogen energy truck.

Background

The hydrogen energy truck card is one of hydrogen energy cars, compared with a hydrogen energy passenger car, a hydrogen energy truck, in particular a heavy-duty hydrogen energy truck has higher requirements on multi-power size and endurance mileage, compared with a hydrogen storage system of the hydrogen energy passenger car, the hydrogen storage system of the hydrogen energy truck needs to store more hydrogen, and in order to enable the hydrogen storage system of the hydrogen energy truck to have stronger hydrogen storage capacity, the existing hydrogen storage system of the hydrogen energy truck generally adopts a hydrogen storage tank with larger size and higher pressure, the higher the pressure of the hydrogen storage tank of the hydrogen energy truck is, the higher the sealing performance of the hydrogen storage system to a hydrogen conveying pipeline of the hydrogen energy truck is, so the cost of the hydrogen storage system is increased, and the reliability and the safety of the hydrogen storage system are reduced, so that the high-pressure hydrogen storage system of the hydrogen energy truck, which can improve the reliability and the safety of the hydrogen storage system of the hydrogen energy truck, is needed.

SUMMERY OF THE UTILITY MODEL

In view of this, in order to improve the reliability and safety of the hydrogen storage system of the hydrogen energy truck, the utility model provides a high-pressure hydrogen storage system of the hydrogen energy truck, which comprises a fixing frame, a hydrogen delivery pipe and a plurality of hydrogen storage bottles, wherein the fixing frame is provided with a plurality of mounting grids, each hydrogen storage bottle is mounted in one mounting grid and locked by a fixing clamp, one end of the hydrogen delivery pipe is a gas inlet end, the other end of the hydrogen delivery pipe is a gas delivery end, the gas inlet end is provided with a gas inlet port and a first one-way valve, the gas delivery end is connected to a stack of the hydrogen energy truck, the mouth of each hydrogen storage bottle is connected to the middle part of the hydrogen delivery pipe through a hydrogen delivery branch pipe, each hydrogen delivery branch pipe is provided with a mouth valve component, the gas delivery end of the hydrogen delivery pipe is provided with a pressure reducing valve component, the gas inlet port is used for being connected with a hydrogen filling device, hydrogen is filled into each hydrogen storage bottle through the gas inlet port, hydrogen stored in the hydrogen storage bottle enters the stack of the hydrogen energy truck through the gas delivery end of the hydrogen delivery pipe, the pressure reducing valve assembly is used for reducing the pressure of hydrogen entering a galvanic pile of a hydrogen energy truck.

Furthermore, a first filter is further arranged at the air inlet end at one end of the hydrogen conveying pipe and used for filtering impurities entering the hydrogen in the hydrogen storage bottle.

Further, still include an evacuation pipe, the end connection of each hydrogen storage bottle afterbody and a snuffle, all snuffles are not connected on the evacuation pipe simultaneously with the other end that the hydrogen storage bottle is connected, the evacuation pipe tip is equipped with the evacuation port.

Furthermore, each air escape pipe is provided with a temperature driving relief device.

Furthermore, each bottleneck valve assembly comprises a second filter, a first manual valve, a first electromagnetic valve and a flow valve, the second filter, the first manual valve, the first electromagnetic valve and the flow valve are sequentially connected to the hydrogen conveying branch pipe, the second filter is closest to the hydrogen storage bottle, and the first electromagnetic valve is also connected with a one-way valve in parallel.

Further, the pressure reducing valve assembly comprises a main pressure reducing valve, a hydrogen exhaust branch pipe, a pressure sensor, a safety valve pipe and a second electromagnetic valve, the hydrogen exhaust branch pipe is connected between the emptying pipe and the hydrogen conveying pipe, a second manual valve is further arranged on the hydrogen exhaust branch pipe, the safety valve pipe is connected between the hydrogen conveying pipe and the hydrogen exhaust branch pipe, and a safety valve is arranged on the safety valve pipe.

The high-pressure hydrogen storage system of the hydrogen energy truck has the beneficial effects that: (1) the high-pressure hydrogen storage system is provided with a plurality of hydrogen storage bottles, all the hydrogen storage bottles are connected to the hydrogen conveying pipe in a parallel connection mode, each hydrogen storage bottle can be opened or closed through a first manual valve, and when the hydrogen storage bottle is damaged, the hydrogen storage bottle can be closed through the first manual valve without influencing the hydrogen storage and supply functions of other hydrogen storage bottles, so that the high-pressure hydrogen storage system is high in reliability; (2) the tail parts of all hydrogen storage bottles are connected with the emptying pipe through an air release pipe, each air release pipe is provided with a temperature driving release device, and the temperature driving release devices can enable hydrogen in hydrogen bottles with overhigh temperature to be discharged through the emptying pipe, so that the safety of a high-pressure hydrogen storage system is improved.

Drawings

Fig. 1 is a perspective view of a high-pressure hydrogen storage system of a hydrogen-powered truck according to an embodiment of the utility model.

Fig. 2 is a pipeline structure diagram of a high-pressure hydrogen storage system of a hydrogen energy truck according to an embodiment of the utility model.

Fig. 3 is a connection structure view of the mouthpiece valve assembly 5 in fig. 2.

FIG. 4 is a connecting structure diagram of the pressure reducing valve assembly 6 of FIG. 2

In the figure: 1-fixed frame, 11-fixed clamp, 2-hydrogen storage bottle, 3-hydrogen conveying pipe, 31-air inlet port, 32-first filter, 33-first one-way valve, 4-evacuation pipe, 41-temperature driving relief device, 42-evacuation port, 5-bottle mouth valve component, 51-second filter, 52-first manual valve, 53-first electromagnetic valve, 54-second one-way valve, 55-flow valve, 56-hydrogen conveying branch pipe, 6-pressure reducing valve component, 61-main pressure reducing valve, 62-hydrogen discharging branch pipe, 63-second manual valve, 64-pressure sensor, 65-second electromagnetic valve, 66-safety valve and 7-electric pile.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1, a high pressure hydrogen storage system for a heavy duty hydrogen energy truck includes a plurality of hydrogen storage bottles 2 for storing hydrogen gas, a fixing frame assembly for the hydrogen storage bottles, and a hydrogen pipe 3.

Referring to fig. 1 and 2, fig. 2 only shows the pipeline structure of two hydrogen storage bottles 2 of the high pressure hydrogen storage system, the number and size of the hydrogen storage bottles 2 in the high pressure hydrogen storage system can be set according to the actual installation space of the hydrogen energy truck, in this embodiment, the number of the hydrogen storage bottles 2 is ten, and the pipeline structure of the rest of the hydrogen storage bottles 2 is the same as that of the hydrogen storage bottles 2 in fig. 2. The fixed frame component comprises a fixed frame 1 and a fixed hoop 11, ten installation lattices are arranged on the fixed frame 1, ten hydrogen storage bottles 2 are respectively installed in the ten storage lattices, all the hydrogen storage bottles 2 are bound and locked in the installation lattices by the fixed hoop 11, the mouth of each hydrogen storage bottle 2 is connected to the middle part of a hydrogen conveying pipe 3 through a hydrogen conveying branch pipe 56, two ends of the hydrogen conveying pipe 3 are respectively an air inlet end and an air conveying end, the air inlet end of the hydrogen conveying pipe 3 is connected with an air inlet port 31, the air conveying end of the hydrogen conveying pipe 3 is connected to a pile 7 of a hydrogen energy truck, a first filter 32, a first check valve 33 and a pressure reducing valve component 6 are further arranged on the hydrogen conveying pipe 3, wherein the first filter 32 and the first check valve 33 are located close to the air inlet end, the pressure reducing valve component 6 is close to the air conveying end, and a mouth valve component 5 is arranged on each hydrogen conveying branch pipe 56.

Further, this high pressure hydrogen storage system still includes a row of blank pipes 4, many snuffles and a plurality of temperature drive bleeder mechanism (TPRD)41, and the snuffles and temperature drive bleeder mechanism 41 quantity is ten in this embodiment, and each hydrogen storage bottle 2 afterbody is connected with a snuffle tip, and all snuffles are not connected on the blank pipe 4 with hydrogen storage bottle 2's the other end simultaneously, the tip of the said blank pipe 4 is equipped with evacuation port 42, and ten temperature drive bleeder mechanism 4 set up respectively on ten snuffles, and the effect of temperature drive bleeder mechanism 4 is the temperature that detects the hydrogen in the hydrogen storage bottle 2 who is connected with it, and when the temperature was too high, temperature drive bleeder mechanism 4 automatically opened the valve that sets up in it, will be discharged with the hydrogen in the hydrogen storage bottle 2 who is connected with it, prevent that hydrogen from exploding because of the high temperature in the hydrogen storage bottle 2, and temperature drive bleeder mechanism 4 is prior art, the structure of which will not be described in detail here.

Specifically, referring to fig. 3, each of the mouthpiece valve assemblies 5 includes a second filter 51, a first manual valve 52, a first electromagnetic valve 53 and a flow valve 44, the second filter 51, the first manual valve 52, the first electromagnetic valve 53 and the flow valve 55 are sequentially connected to a hydrogen branch pipe 56, the second filter 51 is located closest to the hydrogen storage bottle 2, the first electromagnetic valve 53 is further connected in parallel with a one-way valve, the first manual valve 52 is used for closing and opening the hydrogen branch pipe 56 where the first manual valve is located, when a hydrogen storage bottle 2 is damaged, the first manual valve 52 on the hydrogen branch pipe 56 connected to the hydrogen storage bottle 2 is closed by the valve 2, and the first manual valve can be closed, so that the normal use of other hydrogen storage bottles 2 is not affected; the flow valve 54 is used for detecting the hydrogen flow of the hydrogen conveying branch pipe 56, if the hydrogen flow is too large, the hydrogen conveying branch pipe 56 is possibly damaged, and at the moment, the flow valve 54 controls the first electromagnetic valve 53 to close to prevent the hydrogen from leaking; the second filter 51 serves to filter the hydrogen gas entering the stack 7 and prevent impurities in the hydrogen storage cylinder 2 from entering the stack 7.

More specifically, referring to fig. 4, the pressure reducing valve assembly 6 includes a main pressure reducing valve 61, a hydrogen discharge branch pipe 62, a pressure sensor 64, a safety valve pipe 66 and a second solenoid valve 65, the main pressure reducing valve 61 is used for reducing the pressure of the hydrogen gas entering the stack 7 to keep the pressure of the hydrogen gas entering the stack 7 within a proper range, the pressure sensor 64 is used for detecting the pressure of the hydrogen gas entering the stack 7, when the pressure is too high or too low, the pressure sensor 64 controls the second solenoid valve 6 to close to prevent the pressure of the hydrogen gas entering the stack 7 from being too high or too low, the hydrogen discharge branch pipe 62 is connected between the exhaust pipe 4 and the hydrogen supply pipe 3, the hydrogen discharge branch pipe 62 is further provided with a second manual valve 63, the second manual valve 63 is used for discharging the hydrogen gas from the pipeline at the rear end of the main pressure reducing valve 61 during maintenance, the safety valve pipe 66 is connected between the hydrogen supply pipe 3 and the hydrogen discharge branch pipe 62, the safety valve pipe 66 is provided with a safety valve, and the safety valve is used for discharging the hydrogen in the hydrogen conveying pipe 3 through an emptying pipe after the main pressure reducing valve 61 fails, so that the safety of the pipeline of the hydrogen storage system is ensured.

Referring to fig. 1 to 4, the working principle of the high-pressure hydrogen storage system of the hydrogen energy truck of the present invention is as follows: when the high-pressure hydrogen storage system is filled with hydrogen, the gas inlet port 31 of the high-pressure hydrogen storage system is connected with a hydrogen filling device, the hydrogen filling device fills the hydrogen into the gas inlet port 31, and the hydrogen respectively enters each hydrogen storage bottle 2 along the hydrogen conveying branch pipe 56 after passing through the first filter 32 and the first one-way valve 33; when the hydrogen energy truck needs to use hydrogen, the bottleneck valve assemblies 5 of all hydrogen storage bottles 2 are opened, hydrogen in the hydrogen storage bottles 2 enters the galvanic pile 7 of the hydrogen energy truck after being decompressed through the decompression valve assemblies 6, so that the hydrogen energy truck is supplied with gas, the first filter 32 is used for filtering the hydrogen entering the hydrogen storage bottles 2, and impurities are prevented from entering the hydrogen storage bottles 2 along with the hydrogen.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The features of the embodiments and embodiments described herein above may be combined with each other without conflict.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a hydrogen energy truck high pressure hydrogen storage system which characterized in that: the hydrogen storage device comprises a fixing frame, a hydrogen conveying pipe, an emptying pipe and a plurality of hydrogen storage bottles, wherein the fixing frame is provided with a plurality of mounting grids, each hydrogen storage bottle is arranged in one mounting grid and locked by a fixing clamp, one end of the hydrogen conveying pipe is an air inlet end, the other end of the hydrogen conveying pipe is an air conveying end, the air inlet end is provided with an air inlet port and a first one-way valve, the air conveying end is connected to a pile of a hydrogen energy truck, the mouth of each hydrogen storage bottle is connected to the middle part of the hydrogen conveying pipe through a hydrogen conveying branch pipe, each hydrogen conveying branch pipe is provided with a mouth valve component, the air conveying end of the hydrogen conveying pipe is provided with a pressure reducing valve component, the air inlet port is used for being connected with a hydrogen filling device, hydrogen is filled into each hydrogen storage bottle through the air inlet port, the hydrogen stored in the hydrogen storage bottle enters the pile of the hydrogen energy truck through the air conveying end of the hydrogen conveying pipe, and the pressure reducing valve component is used for reducing the hydrogen entering the pile of the hydrogen energy truck, the tail of each hydrogen storage bottle is connected with the end of an air release pipe, the other ends of all the air release pipes which are not connected with the hydrogen storage bottles are connected to an emptying pipe simultaneously, the end of the emptying pipe is provided with an emptying port, and each air release pipe is provided with a temperature driving release device.

2. The high pressure hydrogen storage system of a hydrogen powered truck of claim 1, wherein: one end of the hydrogen conveying pipe is provided with a first filter at the air inlet end, and the first filter is used for filtering impurities entering the hydrogen in the hydrogen storage bottle.

3. The high pressure hydrogen storage system of a hydrogen powered truck of claim 1, wherein: each bottleneck valve component comprises a second filter, a first manual valve, a first electromagnetic valve and a flow valve, the second filter, the first manual valve, the first electromagnetic valve and the flow valve are sequentially connected to the hydrogen conveying branch pipe, the second filter is closest to the hydrogen storage bottle, and the first electromagnetic valve is also connected with a one-way valve in parallel.

4. The high pressure hydrogen storage system of a hydrogen powered truck of claim 1, wherein: the pressure reducing valve assembly comprises a main pressure reducing valve, a hydrogen discharging branch pipe, a pressure sensor, a safety valve pipe and a second electromagnetic valve, the hydrogen discharging branch pipe is connected between the emptying pipe and the hydrogen conveying pipe, a second manual valve is further arranged on the hydrogen discharging branch pipe, the safety valve pipe is connected between the hydrogen conveying pipe and the hydrogen discharging branch pipe, and a safety valve is arranged on the safety valve pipe.