Hydrogen storage device and hydrogen exchange heavy truck with same

Abstract

The invention discloses a hydrogen storage device and a hydrogen exchange heavy truck with the same, the hydrogen storage device comprises a quick-change frame and a hydrogen storage bottle detachably mounted in the quick-change frame, the hydrogen storage bottle is provided with a gas outlet interface, the bottom of the quick-change frame is provided with a hydrogen output interface, and the hydrogen output interface is connected with the quick-change frame. The hydrogen output connector is communicated with the gas outlet connector of the hydrogen storage bottle through a first pipeline, a pressure reducer is arranged on the first pipeline, the hydrogen storage device is easy to replace from a hydrogen exchange heavy truck, and the hydrogen exchange heavy truck with the hydrogen storage device does not need to wait for a long hydrogenation process and has higher use efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and particularly to a hydrogen storage device and a hydrogen-refueling heavy truck having the hydrogen storage device. Background Art

[0002] Hydrogen fuel cell vehicles have advantages such as fast fuel replenishment, zero emissions, high energy density, and good low-temperature characteristics. However, existing hydrogen fuel cell vehicles need to drive into a hydrogen refueling station for hydrogen energy replenishment before the hydrogen energy is exhausted. On the other hand, as disclosed in Chinese Invention Patent No. CN113829872B announced on May 30, 2023, and Chinese Utility Model Patent No. CN219283061U announced on June 30, 2023, existing hydrogen fuel storage devices are generally fixedly installed on vehicles. However, this approach also has drawbacks. For example, when the hydrogen fuel storage device needs to be repaired, the vehicle cannot continue to operate, or when the remaining fuel is not enough to drive into the hydrogen refueling station, it is necessary to wait for other vehicles to deliver hydrogen midway. Therefore, it is necessary to develop a new hydrogen-refueling mode to overcome the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a hydrogen storage device that can be quickly replaced and is easy to repair.

[0004] To achieve the above purpose, the present invention provides a hydrogen storage device, which includes a quick-change frame and a hydrogen storage bottle detachably installed in the quick-change frame. The hydrogen storage bottle has an air outlet interface, and a hydrogen output interface is installed at the bottom of the quick-change frame. The hydrogen output interface and the air outlet interface of the hydrogen storage bottle are connected by a first pipeline, and a pressure reducer is provided on the first pipeline.

[0005] Further, a plurality of accommodation spaces are spaced in the quick-change frame, and a plurality of hydrogen storage bottles are correspondingly installed in the accommodation spaces. The plurality of hydrogen storage bottles are arranged parallel to each other in a first direction. The first pipeline includes a high-pressure pipeline connected between the hydrogen storage bottles and a low-pressure pipeline communicated with the hydrogen output interface, and the pressure reducer is arranged between the high-pressure pipeline and the low-pressure pipeline.

[0006] Further, the hydrogen storage bottle has a bottle mouth valve, and the air outlet interface and an air inlet interface are provided on the bottle mouth valve. A hydrogen input interface is provided at the bottom and / or side of the quick-change frame. The hydrogen input interface and the air inlet interface are connected by a second pipeline, and a one-way valve is provided on the second pipeline.

[0007] Further, the quick-change frame includes a top frame and a bottom frame, and at least one quick-release member detachably connected to the quick-change frame is further provided on the side of the quick-change frame between the top frame and the bottom frame.

[0008] Furthermore, a restraint device is provided inside the accommodation space. The restraint device is used to fix the hydrogen storage cylinder and has a shock-absorbing effect on the hydrogen storage cylinder.

[0009] Furthermore, a loading and unloading grasping part is provided at the top or side of the quick-change frame.

[0010] The present invention also provides a hydrogen-refueling heavy truck that does not need to wait for the hydrogen refueling process.

[0011] For this purpose, a hydrogen-refueling heavy truck is provided. The hydrogen-refueling heavy truck includes a vehicle frame, a bearing seat fixedly installed on the vehicle frame, and a hydrogen power system. The above-mentioned hydrogen storage device is detachably provided on the bearing seat. A plug is fixedly provided on the bearing seat and is docked with the hydrogen output interface. The plug is communicated with the hydrogen power system through a third pipeline.

[0012] Furthermore, a plurality of first guiding parts are provided on the bearing seat. The top of the first guiding part extends into the quick-change frame, and a locking hole is provided on the first guiding part.

[0013] Furthermore, a plurality of second guiding parts are also provided on the bearing seat. A plurality of positioning holes are provided at the bottom of the quick-change frame. The second guiding parts and the positioning holes match each other.

[0014] Furthermore, a buffer pad is provided between the bearing seat and the hydrogen storage device.

[0015] Advantages of the present invention: The present invention provides an easily replaceable hydrogen storage device and a hydrogen-refueling heavy truck with the hydrogen storage device. The hydrogen storage device is easy to repair and maintain. When the remaining amount of hydrogen stored therein is insufficient, another hydrogen storage device filled with hydrogen can be directly replaced. Therefore, the hydrogen-refueling heavy truck using the hydrogen storage device does not need to wait for a long hydrogen refueling process and has a higher utilization rate. Description of the drawings

[0016] Figure 1 is a three-dimensional structural schematic diagram of a hydrogen storage device provided in Embodiment 1 of the present invention installed on the bearing seat of a hydrogen-refueling heavy truck; Figure 2 is Figure 1 a three-dimensional schematic diagram after the hydrogen storage device shown is separated from the bearing seat; Figure 3 is a three-dimensional structural schematic diagram of the hydrogen storage device provided in Embodiment 2 of the present invention; Figure 4 is Figure 2 a three-dimensional structural schematic diagram of another perspective of the hydrogen storage device shown; Figure 5 is Figure 1 a three-dimensional schematic diagram of the bearing seat of the hydrogen-refueling heavy truck shown; Figure 6It is a schematic three-dimensional structure diagram of the hydrogen storage device provided in Embodiment 3 of the present invention; Figure 7 is Figure 1 A schematic three-dimensional diagram of the hydrogen storage device shown after hiding the quick-change frame; Figure 8 It is a schematic diagram of the pipeline wiring of the hydrogen storage device provided in Embodiment 1 of the present invention; Figure 9 It is a schematic diagram of the pipeline wiring of the hydrogen storage device provided in another embodiment of the present invention.

[0017] Explanation of reference numerals: 100, hydrogen storage device; 10, quick-change frame; 101, accommodation space; 102, top frame; 103, bottom frame; 104, grasping part; 105, positioning hole; 106, restraint device; 107, quick-connection hole; 11, hydrogen storage bottle; 110, bottle mouth valve; 111, bottle mouth; 112, bottle bottom; 141, gas outlet interface; 142, gas inlet interface; 161, hydrogen output interface; 162, hydrogen input interface; 15, pressure reducer; 17, quick-release stopper; 171, hanging part; 172, locking part; 18, one-way valve; 200, bearing seat; 21, bearing frame; 26, cross beam; 261, plug; 263, third pipeline; 23, first guiding part; 230, locking hole; 231, guiding inclined surface; 24, second guiding part; 210, buffer pad; 211, sensor; 31, first pipeline; 312, high-pressure pipeline; 311 low-pressure pipeline; 32, second pipeline. Detailed description of the specific implementation

[0018] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0019] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly under and obliquely under the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0021] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0022] See Figures 1 to 7 , an embodiment of the present invention provides a hydrogen storage device 100, which includes a quick-change frame 10 and hydrogen storage bottles 11 installed in the quick-change frame 10. The hydrogen storage bottles 11 are detachably installed in the quick-change frame 10 to facilitate later maintenance and replacement. In this embodiment, the quick-change frame 10 includes a top frame 102 and a bottom frame 103 arranged oppositely, and a plurality of independent accommodation spaces 101 separated by a plurality of support frames (not labeled) between the top frame 102 and the bottom frame 103. The accommodation spaces 101 are distributed at intervals in the vertical direction and are used to respectively accommodate a plurality of horizontally placed hydrogen storage bottles 11 in a one-to-one correspondence. Both the top frame 102 and the bottom frame 103 are rectangular hollow frame structures. The top frame 102 is used to lift the hydrogen storage device 100 from the top, and the bottom frame 103 is used to accommodate and install components such as a control box (not shown). Among them, the height of the top frame 102 is less than the height of any one of the accommodation spaces 101, and only needs to meet the requirement that it can be grabbed and fixed. For example, the top frame 102 is provided with a hole-shaped grasping portion 104. By inserting a gripper (not shown) into the grasping portion 104, the hydrogen storage device 100 can be lifted. In some other embodiments, only a single hydrogen storage bottle 11 may be provided in the quick-change frame 10, and the grasping portion 104 may also be provided on one side of the quick-change frame 10 to grab the hydrogen storage device 100 from the side, which will not be elaborated here. Among them, the hydrogen storage bottle 11 has a bottle mouth 111 provided with a bottle mouth valve 110 and a bottle bottom 112 arranged opposite to the bottle mouth 111. The bottle mouth valve 110 is provided with an air outlet interface 141 and an air inlet interface 142, which are respectively used for the hydrogen storage bottle 11 to output hydrogen externally and inject hydrogen into the hydrogen storage bottle 11 from the outside.

[0023] A hydrogen output interface 161 is installed at the bottom of the quick-change frame 10. Preferably, the hydrogen output interface 161 opens downward to facilitate the automatic docking and matching with the plug 261 provided on the socket 200 during the downward movement of the hydrogen storage device 100. The hydrogen output interface 161 is communicated with the gas outlet interface 141 of the hydrogen storage bottle 11 through a first pipeline 31. A pressure reducer 15 is provided on the first pipeline 31. The high-pressure hydrogen in the hydrogen storage bottle 11 can be depressurized through the pressure reducer 15 to reduce the leakage risk at the hydrogen output interface 161. Optionally, the pressure reducer 15 is a pressure reducing valve. In this embodiment, a hydrogen input interface 162 is provided at the bottom of the quick-change frame 10. The hydrogen input interface 162 is communicated with the intake interface 142 through a second pipeline 32. A one-way valve 18 is provided on the second pipeline 32. By placing the quick-change frame 10 on a hydrogen replenishment seat (not shown) and docking the hydrogen filling interface on the hydrogen replenishment seat with the hydrogen input interface 162, hydrogen can be replenished to multiple hydrogen storage bottles 11 simultaneously through the hydrogen input interface 162. In another embodiment, the hydrogen input interface 162 can also be provided on the side of the quick-change frame 10 (not shown). At this time, a movable hydrogen filling gun connected to the pipeline can be used to replenish hydrogen to multiple hydrogen storage bottles 11 from the side. Obviously, in some other embodiments, the hydrogen input interface 162 can also be provided on both the side and the bottom of the quick-change frame 10. Due to the adoption of the one-way valve 18, the simultaneously provided hydrogen input interfaces 162 do not affect each other and can be selectively used to hydrogenate the hydrogen storage bottles 11 in the hydrogen storage device 100, or hydrogenate simultaneously to more quickly complete the energy replenishment of the hydrogen storage device 100. Figure 8 and Figure 9 The following shows an exemplary illustration of the connection relationship between the hydrogen storage bottle 11, the hydrogen output interface 161 and the hydrogen input interface 162.

[0024] A plurality of hydrogen storage bottles 11 are installed in the accommodation space 101 one by one. Preferably, the plurality of hydrogen storage bottles 11 are arranged parallel to each other and independently in a first direction. The first pipeline 31 includes a high-pressure pipeline 312 connected between the hydrogen storage bottles 11 and a low-pressure pipeline 311 communicated with the hydrogen output interface 161. The pressure reducer 15 is arranged between the high-pressure pipeline 312 and the low-pressure pipeline 311. Preferably, the high-pressure pipeline 312 extends in a second direction perpendicular to the first direction and is fixedly installed on the quick-change frame 10. Hydrogen release interfaces (not labeled) corresponding to the number of hydrogen storage bottles 11 are arranged in parallel on the high-pressure pipeline 312. The hydrogen release interfaces are detachably connected to the respective gas outlet interfaces 141. At the same time, hydrogen filling interfaces (not labeled) corresponding to the number of hydrogen storage bottles 11 are also arranged in parallel on the second pipeline 32. The hydrogen filling interfaces and the intake interface 142 are also designed to be detachably connected, that is to say, the above-mentioned detachable connection can be achieved between the hydrogen storage bottle 11 and the quick-change frame 10. Preferably, asFigure 1 As shown in the figure, in the first embodiment, a restraint device 106 fixedly installed on the quick-change frame 10 is respectively provided in each accommodation space 101. The restraint device 106 is used to fix the hydrogen storage cylinder 11 and can play a role in shock absorption and protection for the hydrogen storage cylinder 11 during transportation, improving the safety of the hydrogen storage device 100.

[0025] As Figure 2 and Figure 4 shown in the figure, in the second embodiment, a quick-connection hole 107 is further provided on the top frame 102 of the quick-change frame 10. The quick-change frame 10 further includes a quick-release blocking member 17 with one end inserted into the quick-connection hole 107 and the other end detachably connected to the bottom frame 103. The quick-release blocking member 17 has a hanging portion 171 provided at the top and a locking portion 172 provided at the bottom. The locking portion 172 has a through hole. By passing a bolt (not shown) through the through hole and threadedly connecting the bolt to the bottom frame 103 of the quick-change frame 10, the quick-release blocking member 17 can be quickly fixed on the quick-change frame 10, thereby closing each accommodation space 101 simultaneously, effectively preventing the hydrogen storage cylinder 11 from falling, and further improving the safety of the hydrogen storage device 100. As Figure 6 shown in the figure, the third embodiment provides another quick-release blocking member 17. The quick-release blocking member 17 is multiple and is respectively in an X shape. The two sides of the X-shaped quick-release blocking member 17 are respectively detachably connected to the side parts of the quick-change frame 10 for respectively closing each accommodation space 101. Preferably, in some other embodiments, abutting portions (not shown) can be respectively provided on the quick-release blocking member 17 corresponding to each hydrogen storage cylinder 11. The abutting portions are used to abut against the bottom 112 of the hydrogen storage cylinder 11 to play a role in reinforcement and anti-shaking.

[0026] The present application also discloses a hydrogen-refueling heavy truck. The hydrogen-refueling heavy truck includes a vehicle frame, a seat 200 fixedly installed on the vehicle frame, and a hydrogen power system (not shown). The above-mentioned hydrogen storage device 100 is detachably provided on the seat 200. As Figure 4 shown in the figure, the seat 200 has a bearing frame 21 matching the bottom of the quick-change frame 10. The bearing frame 21 is generally rectangular. A cross beam 26 is provided on the bearing frame 21. A plug 261 extending upward and docked with the aforementioned hydrogen output interface 161 is fixedly provided on the cross beam 26. The plug 261 is communicated with the hydrogen power system through a third pipeline 263, and can continuously provide hydrogen after pressure reduction for the hydrogen power system, thereby realizing providing hydrogen fuel for the hydrogen-refueling heavy truck.

[0027] In order to accurately align the hydrogen output interface 161 with the connector 261, a plurality of first guiding portions 23 are provided on the socket 200. The top of the first guiding portion 23 can extend into the quick-change frame 10. Through a plurality of guiding inclined surfaces 231 respectively provided on the first guiding portion 23 and facing different directions, guiding and positioning can be performed before the quick-change frame 10 falls onto the socket 200. Preferably, a locking hole 230 is further provided on the first guiding portion 23. By extending a locking tongue (not shown) from the locking hole 230 to press against the bottom of the quick-change frame 10, the installed hydrogen storage device 100 can be fastened to the socket 200.

[0028] In order to improve the positioning accuracy, further, a plurality of second guiding portions 24 are also provided on the socket 200. The height of the second guiding portion 24 is lower than that of the aforementioned first guiding portion 23. A plurality of positioning holes 105 corresponding to the second guiding portions 24 are provided at the bottom of the quick-change frame 10. The second guiding portion 24 can extend into the positioning holes 105 and match with the positioning holes 105. By means of the simultaneous cooperation of a plurality of pins and holes, the plugging accuracy between the hydrogen output interface 161 and the connector 261 is ensured. In order to further enhance the reliability of the installation between the hydrogen storage device 100 and the socket 200, buffer pads 210 and sensors 211 are provided at multiple positions on the bearing frame 21 of the socket 200. By providing buffer pads 210 between the socket 200 and the hydrogen storage device 100, the impact received by the hydrogen storage device 100 can be effectively reduced. Through the sensor 211, it can be detected whether the hydrogen storage device 100 is installed in place, so as to judge whether to extend the aforementioned locking tongue to fix the hydrogen storage device 100 to the socket 200, thereby enhancing the safety of the hydrogen refueling heavy truck when using the hydrogen storage device 100.

[0029] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A hydrogen storage device (100) includes a quick-change frame (10) and a hydrogen storage cylinder (11) detachably mounted in the quick-change frame (10). The hydrogen storage cylinder (11) has an air outlet interface (141), characterized in that, A hydrogen output interface (161) is installed at the bottom of the quick-change frame (10). The hydrogen output interface (161) is communicated with an air outlet interface (141) of a hydrogen storage cylinder (11) through a first pipeline (31), and a pressure reducer (15) is arranged on the first pipeline (31).

2. The hydrogen storage device (100) according to claim 1, characterized in that: A plurality of accommodation spaces (101) are arranged at intervals in the quick-change frame (10). A plurality of hydrogen storage cylinders (11) are provided and are respectively installed in the accommodation spaces (101). The plurality of hydrogen storage cylinders (11) are arranged parallel to each other along a first direction. The first pipeline (31) includes a high-pressure pipeline (312) connected between the hydrogen storage cylinders (11) and a low-pressure pipeline (311) communicated with the hydrogen output interface (161), and the pressure reducer (15) is arranged between the high-pressure pipeline (312) and the low-pressure pipeline (311).

3. The hydrogen storage device (100) according to claim 2, characterized in that: The hydrogen storage cylinder (11) has a bottle mouth valve (110). An air outlet interface (141) and an air inlet interface (142) are arranged on the bottle mouth valve (110). A hydrogen input interface (162) is arranged at the bottom and / or side of the quick-change frame (10). The hydrogen input interface (162) is communicated with the air inlet interface (142) through a second pipeline (32), and a one-way valve (18) is arranged on the second pipeline (32).

4. The hydrogen storage device (100) according to claim 2, characterized in that: The quick-change frame (10) includes a top frame (102) and a bottom frame (103). At least one quick-release blocking member (17) detachably connected to the quick-change frame (10) is further arranged between the top frame (102) and the bottom frame (103) and on the side of the quick-change frame (10).

5. The hydrogen storage device (100) according to claim 2, characterized in that: A constraint device (106) is arranged in the accommodation space (101). The constraint device (106) is used for fixing the hydrogen storage cylinder (11) and playing a shock-absorbing role on the hydrogen storage cylinder (11).

6. The hydrogen storage device (100) according to claim 1, characterized in that: A loading and unloading grasping part (104) is arranged at the top or side of the quick-change frame (10).

7. A hydrogen-refueling heavy truck includes a vehicle frame, a seat (200) fixedly installed on the vehicle frame, and a hydrogen power system. The hydrogen storage device (100) as described in any one of claims 1 to 6 is detachably arranged on the seat (200). A socket (261) extending upward and docked with the hydrogen output interface (161) is fixedly arranged on the seat (200), and the socket (261) is communicated with the hydrogen power system through a third pipeline (263).

8. The hydrogen replacement heavy truck according to claim 7, wherein, A plurality of first guiding parts (23) are arranged on the seat (200). The top of the first guiding parts (23) extends into the quick-change frame (10), and locking holes (230) are arranged on the first guiding parts (23).

9. The hydrogen replacement heavy truck according to claim 8, wherein, A plurality of second guiding parts (24) are further arranged on the seat (200). A plurality of positioning holes (105) are arranged at the bottom of the quick-change frame (10), and the second guiding parts (24) and the positioning holes (105) are mutually matched.

10. The hydrogen replacement heavy truck according to claim 7, characterized in that, A buffer pad (210) is arranged between the seat (200) and the hydrogen storage device (100).

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