Liquefied fuel medium storage system and transport vehicle

Abstract

A liquefied fuel medium storage system and a transport vehicle, the system comprising a liquefied fuel medium storage device, a liquefied fuel medium supply device and a driving device; the liquefied fuel medium storage device has a first storage device connecting port, the first storage device connecting port being located at an upper end of the liquefied fuel medium storage device; the liquefied fuel medium supply device has a first supply device connecting port, the first supply device connecting port being located at an upper end of the liquefied fuel medium supply device; the first storage device connecting port is connected with the first supply device connecting port through a first pipeline; the liquefied fuel medium supply device is connected with the driving device through a fuel supply pipeline; and a first pressure trigger valve is arranged on the first pipeline. The system improves the efficiency of storage and transportation of liquefied fuel medium by configuring the liquefied fuel medium storage system with the liquefied fuel medium supply device for supplying energy to the driving device and the first pipeline.

Description

Technical Field

[0001] This application relates to the field of hydrogen energy technology, and more specifically, to a liquefied fuel medium storage system and a transport vehicle. Background Technology

[0002] Liquefied fuel media typically include liquefied natural gas, liquefied coal gas, and liquefied hydrogen. Liquefied fuel media are usually stored and transported using liquefied fuel media storage systems.

[0003] Current liquefied fuel storage systems typically only store the liquefied fuel itself. In processes such as liquefied fuel transshipment, these systems cannot provide energy to the transport vehicles carrying the fuel. This is especially true for storage systems storing liquefied hydrogen, a clean and efficient energy carrier with significant advantages in the energy revolution. However, current hydrogen storage systems cannot provide energy to the transport vehicles, thus limiting the efficiency of hydrogen transportation.

[0004] Therefore, current liquefied fuel storage systems limit the efficiency of liquefied fuel storage and transportation. Summary of the Invention

[0005] The purpose of this application is to provide a liquefied fuel medium storage system and a transport vehicle, which, by configuring a liquefied fuel medium supply device for supplying power to the drive unit, and by using a pipeline between the liquefied fuel medium supply device and the liquefied fuel medium storage device, replenishes the liquefied fuel medium supply device and adjusts the pressure of the liquefied fuel medium storage device, thereby improving the storage and transportation efficiency of the liquefied fuel medium storage system.

[0006] In a first aspect, this application provides a liquefied fuel medium storage system, including a liquefied fuel medium storage device, a liquefied fuel medium supply device, and a driving device; the liquefied fuel medium storage device has a first storage device connection port located at the upper end of the liquefied fuel medium storage device; the liquefied fuel medium supply device has a first supply device connection port located at the upper end of the liquefied fuel medium supply device; the first storage device connection port is connected to the first supply device connection port via a first pipeline; the liquefied fuel medium supply device is connected to the driving device via a fuel supply pipeline; a first pressure-triggered valve is provided on the first pipeline; the first pressure-triggered valve is configured to switch to a connected state when the pressure in the first pipeline exceeds a first pressure threshold.

[0007] The aforementioned liquefied fuel medium storage system, by configuring a liquefied fuel medium supply device for powering the drive unit, and by triggering a first pressure-triggered valve to open when the pressure inside the liquefied fuel medium supply device reaches a certain level, allows the vaporized liquefied fuel medium in the storage device to be transferred to the liquefied fuel medium supply device through a first pipeline. This achieves fuel replenishment for the liquefied fuel medium supply device and pressure adjustment within the liquefied fuel medium storage device, thereby improving the efficiency of liquefied fuel medium storage and transportation.

[0008] In conjunction with the first aspect, optionally, a vaporizer is provided on the fuel supply pipeline; the vaporizer is configured to vaporize the liquefied fuel medium supplied by the liquefied fuel medium supply device to the drive device; the first pipeline has a first pipeline branch point; the first pipeline branch point is located between the first pressure trigger valve and the liquefied fuel medium supply device; the fuel supply pipeline has a second pipeline branch point; the second pipeline branch point is located between the vaporizer and the drive device; the first pipeline branch point is connected to the second pipeline branch point through a second pipeline; a second pressure trigger valve is provided on the second pipeline; the second pressure trigger valve is configured to switch to a connected state when the pressure in the second pipeline exceeds a second pressure threshold; wherein, the first pressure threshold is less than the second pressure threshold.

[0009] The aforementioned liquefied fuel medium storage system, by installing a second pipeline equipped with a second pressure-triggered valve at the first branch point of the first pipeline, allows for the transfer of vaporized liquefied fuel medium from the storage device to the supply device via the second pipeline, even when the pressure inside the supply device remains excessively high. This provides further assurance that the pressure within the storage device will not exceed acceptable limits.

[0010] In conjunction with the first aspect, optionally, the first pressure-triggered valve includes a first check valve; wherein the conduction direction of the first check valve is from the liquefied fuel medium storage device to the liquefied fuel medium supply device; the second pressure-triggered valve includes a second check valve; wherein the conduction direction of the second check valve is from the liquefied fuel medium storage device to the liquefied fuel medium supply device.

[0011] The aforementioned liquefied fuel medium storage system, by employing a first check valve and a second check valve as the first pressure trigger valve and the second pressure trigger valve respectively, largely restricts the backflow of vaporized liquefied fuel medium from the liquefied fuel medium supply device and the drive device into the liquefied fuel medium storage device, thereby providing further assurance that the pressure in the liquefied fuel medium storage device does not exceed the standard.

[0012] In conjunction with the first aspect, optionally, a safety valve is further provided on the first pipeline and / or the second pipeline; the safety valve is configured to discharge gas from the first pipeline and / or the second pipeline when the pressure in the first pipeline and / or the second pipeline exceeds a third pressure threshold; wherein the second pressure threshold is less than the third pressure threshold.

[0013] The aforementioned liquefied fuel medium storage system, by installing safety valves on the first and / or second pipelines, allows for the release of vaporized liquefied fuel medium from the storage device if the pressure remains excessive even after discharging the vaporized liquefied fuel medium through both pipelines. This provides a further guarantee to ensure that the pressure in the liquefied fuel medium storage device does not exceed the limit.

[0014] In conjunction with the first aspect, optionally, the drive device has a stopped state; a first shut-off valve is also provided on the second pipeline; the first shut-off valve is configured to shut off the second pipeline when the drive device is in the stopped state.

[0015] The aforementioned liquefied fuel medium storage system, by installing a first shut-off valve on the second pipeline, cuts off the second pipeline when the drive unit is in a stopped state. This reduces the risk of fire or explosion caused by residual liquefied fuel medium in the drive unit, and also reduces the risk of excessive stress on internal seals and valves of the drive unit caused by vaporized liquefied fuel medium, thus reducing the risk of damage to these components. Furthermore, it reduces the waste of liquefied fuel medium.

[0016] In conjunction with the first aspect, optionally, the liquefied fuel medium storage device has a second storage device connection port located at the upper end of the liquefied fuel medium storage device; the liquefied fuel medium supply device has a second supply device connection port located at the lower end of the liquefied fuel medium supply device; the second storage device connection port is connected to the second supply device connection port via a third pipeline; a second shut-off valve is provided on the third pipeline; the second shut-off valve is configured to switch to a connected state when the liquefied fuel medium storage device needs to be replenished with liquefied fuel medium.

[0017] The aforementioned liquefied fuel medium storage system, by installing a third pipeline in the liquefied fuel medium storage device and the liquefied fuel medium supply device for backfilling the liquefied fuel medium into the liquefied fuel medium storage device, and correspondingly installing a second shut-off valve, realizes the backfilling of the liquefied fuel medium through the third pipeline, thereby ensuring the basic transport volume of the transport vehicle during the transfer of the liquefied fuel medium, and ultimately improving the ease of use of the liquefied fuel medium storage system.

[0018] In conjunction with the first aspect, optionally, a spray head is provided at one end of the third pipeline connected to the liquefied fuel medium storage device; the spray head extends from the upper end of the liquefied fuel medium storage device into the liquefied fuel medium and is located inside the liquefied fuel medium storage device near the upper end.

[0019] The aforementioned liquefied fuel medium storage system atomizes the liquid liquefied fuel medium supplied from the liquefied fuel medium supply device by spraying from the spray head. This increases the contact area between the liquid and gaseous liquefied fuel medium, thereby better cooling the vaporized liquefied fuel medium to liquefy it, and ultimately further reducing the pressure in the liquefied fuel medium storage device.

[0020] In conjunction with the first aspect, optionally, the liquefied fuel medium storage device has a third storage device connection port located at the lower end of the liquefied fuel medium storage device; the liquefied fuel medium supply device has a third supply device connection port located at the upper end of the liquefied fuel medium supply device; the third storage device connection port is connected to the third supply device connection port via a fourth pipeline; the lower end of the liquefied fuel medium storage device is at a greater height than the upper end of the liquefied fuel medium supply device in the same direction as gravity; a third shut-off valve is provided on the fourth pipeline; the third shut-off valve is configured to switch to a connected state when the liquefied fuel medium supply device needs to be replenished with liquefied fuel medium.

[0021] The aforementioned liquefied fuel medium storage system, when the pressure in the liquefied fuel medium storage device is reduced through the first pipeline, the second pipeline, and the safety valve, but the pressure remains too high, or when fuel replenishment to the drive unit through the first and second pipelines is still insufficient, can control the opening of the third shut-off valve to directly transfer the liquid liquefied fuel medium from the storage device to the liquefied fuel medium supply device. This further reduces the pressure in the storage device, providing a further guarantee that the pressure in the storage device will not exceed the standard. It also ensures, to a certain extent, the supply of fuel required by the drive unit.

[0022] In conjunction with the first aspect, the liquefied fuel medium may optionally include liquefied hydrogen.

[0023] The aforementioned liquefied fuel medium storage system, due to hydrogen's status as a clean and efficient energy carrier, possesses unique advantages in the energy revolution. Therefore, by using the liquefied fuel medium storage system provided in this application for the storage and transportation of liquefied hydrogen, the storage and transportation efficiency of liquefied hydrogen is improved. This provides new technological support for the development of hydrogen energy.

[0024] Secondly, this application provides a transport vehicle, including a transport pallet and a liquefied fuel medium storage system as described in the first aspect; the liquefied fuel medium storage device is disposed on the pallet; and the liquefied fuel medium supply device is disposed below the pallet.

[0025] The aforementioned transport vehicle has the same beneficial effects as the liquefied fuel medium storage system provided by the first aspect or any optional embodiment of the first aspect, which will not be elaborated here.

[0026] In summary, the liquefied fuel medium storage system and transport vehicle provided in this application, by configuring a liquefied fuel medium supply device for powering the drive unit in the liquefied fuel medium storage system, enables the vaporized liquefied fuel medium in the liquefied fuel medium storage device to be transferred to the liquefied fuel medium supply device through a first pipeline. This achieves fuel replenishment for the liquefied fuel medium power supply device and also enables pressure adjustment in the liquefied fuel medium storage device, thereby improving the efficiency of liquefied fuel medium storage and transportation. By setting a second pipeline equipped with a second pressure-triggered valve, a safety valve, and a fourth pipeline at the first pipeline branch point of the first pipeline, further assurance is provided to ensure that the pressure in the liquefied fuel medium storage device does not exceed the standard. By using a first one-way valve and a second one-way valve as the first pressure-triggered valve and the second pressure-triggered valve, respectively, backflow of the liquefied fuel medium is restricted, further ensuring that the pressure in the liquefied fuel medium storage device does not exceed the standard. By installing a first shut-off valve on the second pipeline, the second pipeline can be shut off when the drive unit is in a stopped state, reducing the risk of accidents and minimizing waste of liquefied fuel. By configuring a third pipeline, liquefied fuel can be replenished via a third pipeline, ensuring the basic transport capacity of the transport vehicle during liquefied fuel transfer, ultimately improving the ease of use of the liquefied fuel storage system. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the structure of the liquefied fuel medium storage system provided in the embodiments of this application;

[0029] Figure 2 A schematic diagram of the structure of the transport vehicle provided in the embodiments of this application.

[0030] Icons: 100, Liquefied fuel medium storage system; 110, Liquefied fuel medium storage device; 111, First storage device connection port; 112, Second storage device connection port; 113, Third storage device connection port; 120, Liquefied fuel medium supply device; 121, First supply device connection port; 122, Second supply device connection port; 123, Third supply device connection port; 130, Drive device; 140, First pipeline; 141, First pressure contact 142. First pipeline branch point; 150. Carburetor; 160. Second pipeline; 161. Second pressure-triggered valve; 162. Safety valve; 163. First shut-off valve; 170. Third pipeline; 171. Second shut-off valve; 172. Spray head; 180. Fourth pipeline; 181. Third shut-off valve; 190. Fuel supply pipeline; 191. Second pipeline branch point; 10. Transport vehicle; 200. Pallet; 300. Liquefied fuel medium. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a liquefied fuel medium storage system 100 provided in an embodiment of this application. The liquefied fuel medium storage system 100 provided in this embodiment may include a liquefied fuel medium storage device 110, a liquefied fuel medium supply device 120, and a drive device 130. The liquefied fuel medium storage device 110 may have a first storage device connection port 111, which may be located at the upper end of the liquefied fuel medium storage device 110. The liquefied fuel medium supply device 120 may have a first supply device connection port 121, which may be located at the upper end of the liquefied fuel medium supply device 120. The first storage device connection port 111 can be connected to the first supply device connection port 121 through a first pipeline 140. The liquefied fuel medium supply device 120 can be connected to the drive device 130 through a fuel supply pipeline 190. A first pressure trigger valve 141 may be provided on the first pipeline 140. The first pressure trigger valve 141 may be configured to switch to a connected state when the pressure in the first pipeline 140 exceeds a first pressure threshold.

[0038] The liquefied fuel medium storage device 110 can be a storage tank for storing liquefied fuel. The liquefied fuel medium supply device 120 can be a fuel tank for transferring the liquefied fuel medium 300. The drive device 130 can be a device capable of converting the chemical energy of the liquefied fuel medium 300 into the mechanical energy of a transportation vehicle. For example, it could be a power generation device that generates electricity by burning the liquefied fuel medium 300, or an internal combustion engine that obtains mechanical energy by directly burning the liquefied fuel medium 300.

[0039] When the liquefied fuel medium storage device 110 and the liquefied fuel medium supply device 120 are not completely filled with liquefied fuel medium 300, vaporized liquefied fuel medium 300 will usually exist in the upper part of the liquefied fuel medium storage device 110 and the liquefied fuel medium supply device 120. The more vaporized liquefied fuel medium 300 in the liquefied fuel medium storage device 110, the greater its internal pressure will be. In order to prevent the liquefied fuel medium storage device 110 from being damaged due to excessive internal pressure, the vaporized liquefied fuel medium 300 inside the liquefied fuel medium storage device 110 can be transferred to the liquefied fuel medium supply device 120 through the first storage device connection port 111 at the upper end of the liquefied fuel medium storage device 110 via the first pipeline 140. The first pressure trigger valve 141 installed on the first pipeline 140 can sense the pressure change on the first pipeline 140 and automatically open when the pressure reaches the first pressure threshold, so as to realize that the vaporized liquefied fuel medium 300 in the liquefied fuel medium storage device 110 is transmitted to the liquefied fuel medium supply device 120 through the first pipeline 140.

[0040] In the above implementation process, a liquefied fuel medium supply device 120 for supplying power to the drive device 130 is configured in the liquefied fuel medium storage system 100. When the pressure inside the liquefied fuel medium 300 power supply device reaches a certain level, a first pressure trigger valve 141 is opened, allowing the vaporized liquefied fuel medium 300 in the liquefied fuel medium storage device 110 to be transferred to the liquefied fuel medium supply device 120 through the first pipeline 140. This achieves fuel replenishment for the liquefied fuel medium 300 power supply device and also adjusts the pressure in the liquefied fuel medium storage device 110, thereby improving the efficiency of storing and transporting the liquefied fuel medium 300.

[0041] Please continue to refer to Figure 1In some alternative embodiments, a vaporizer 150 may be provided on the fuel supply line 190. The vaporizer 150 may be configured to vaporize the liquefied fuel medium 300 supplied from the liquefied fuel medium supply device 120 to the drive device 130. The first line 140 may have a first line branch point 142. The first line branch point 142 may be located between the first pressure trigger valve 141 and the liquefied fuel medium supply device 120. The fuel supply line 190 may have a second line branch point 191. The second line branch point 191 may be located between the vaporizer 150 and the drive device 130. The first line branch point 142 may be connected to the second line branch point 191 via a second line 160. A second pressure trigger valve 161 may be provided on the second line 160. The second pressure trigger valve 161 may be configured to switch to an open state when the pressure in the second line 160 exceeds a second pressure threshold. The first pressure threshold may be less than the second pressure threshold.

[0042] Whether the drive unit 130 is a power generation device that generates electricity by burning liquefied fuel medium 300, or an internal combustion engine that obtains mechanical energy by directly burning liquefied fuel medium 300, the liquefied fuel medium usually needs to be vaporized before it can be burned. Therefore, the vaporizer 150 is a device used to vaporize the liquefied fuel medium 300.

[0043] The first pipe 140 and the second pipe 160 correspond to a two-branched pipe extending from the upper end of the liquefied fuel medium storage device 110. One branch connects to the upper end of the liquefied fuel medium supply device 120, and the other branch connects to the drive device 130 at the rear end of the vaporizer 150. In other words, since the liquefied fuel medium 300 output from the upper end of the liquefied fuel medium storage device 110 is typically gaseous, vaporization is not required using the vaporizer 150, allowing the other branch to bypass the vaporizer 150 and connect directly to the drive device 130.

[0044] Similarly, a second pressure-triggered valve 161 may be installed on the second pipeline 160. The second pressure-triggered valve 161 may be configured to switch to a connected state when the pressure in the second pipeline 160 exceeds a second pressure threshold.

[0045] The second pressure threshold can be greater than the first pressure threshold. Therefore, in the branched pipeline formed by the first pipeline 140 and the second pipeline 160, when the pressure in the liquefied fuel medium storage device 110 reaches a lower value, the liquefied fuel medium 300 first enters the liquefied fuel medium supply device 120 through the first pipeline 140; when the pressure in the liquefied fuel medium storage device 110 reaches a higher value, the liquefied fuel medium 300 then flows directly to the drive device 130 through the second pipeline 160.

[0046] In the above implementation process, by setting a second pipeline 160 equipped with a second pressure trigger valve 161 at the first pipeline branch point 142 of the first pipeline 140, if the pressure inside the liquefied fuel medium 300 supply device is still too high when the vaporized liquefied fuel medium 300 in the liquefied fuel medium storage device 110 is transferred to the liquefied fuel medium supply device 120 through the first pipeline 140, the vaporized liquefied fuel medium 300 in the liquefied fuel medium storage device 110 can be transferred to the liquefied fuel medium supply device 120 again through the second pipeline 160. This provides further assurance that the pressure in the liquefied fuel medium storage device 110 does not exceed the standard.

[0047] Please continue to refer to Figure 1 In some optional embodiments, the first pressure-triggered valve 141 may include a first check valve. The conduction direction of the first check valve may be from the liquefied fuel medium storage device 110 to the liquefied fuel medium supply device 120. The second pressure-triggered valve 161 may include a second check valve. The conduction direction of the second check valve may be from the liquefied fuel medium storage device 110 to the liquefied fuel medium supply device 120.

[0048] In the above implementation process, by using the first check valve and the second check valve as the first pressure trigger valve 141 and the second pressure trigger valve 161 respectively, the backflow of the vaporized liquefied fuel medium 300 in the liquefied fuel medium supply device 120 and the drive device 130 to the liquefied fuel medium storage device 110 is greatly restricted, thereby providing further assurance that the pressure in the liquefied fuel medium storage device 110 does not exceed the standard.

[0049] Please continue to refer to Figure 1 In some optional embodiments, a safety valve 162 may also be provided on the first pipeline 140 and / or the second pipeline 160. The safety valve 162 may be configured to discharge gas from the first pipeline 140 and / or the second pipeline 160 when the pressure in the first pipeline 140 and / or the second pipeline 160 exceeds a third pressure threshold. The second pressure threshold may be less than the third pressure threshold.

[0050] In other words, safety valve 162 can be located between the first pressure-triggered valve 141 and the second pressure-triggered valve 161, specifically either on the first pipeline 140 or on the second pipeline 160. Safety valve 162 can also be located at the rear end of the second pressure-triggered valve 161. Specifically, safety valve 162 can be manually operated for releasing vaporized liquefied fuel medium 300 from the liquefied fuel medium storage device 110.

[0051] When the second pressure threshold is less than the third pressure threshold, the vaporized liquefied fuel medium 300 in the liquefied fuel medium storage device 110 is discharged through the first pipeline 140 and the second pipeline 160 together to reduce the pressure of the liquefied fuel medium storage device 110. If the pressure of the liquefied fuel medium storage device 110 is still too high, the vaporized liquefied fuel medium 300 in the liquefied fuel medium storage device 110 can be released by opening the safety valve 162.

[0052] In the above implementation process, by installing safety valves 162 on the first pipeline 140 and / or the second pipeline 160, if the pressure of the liquefied fuel medium 300 in the liquefied fuel medium storage device 110 is still too high after the vaporized liquefied fuel medium 300 is discharged through the first pipeline 140 and the second pipeline 160, the vaporized liquefied fuel medium 300 in the liquefied fuel medium storage device 110 can be released by opening the safety valves 162. This provides further assurance that the pressure in the liquefied fuel medium storage device 110 will not exceed the limit.

[0053] Please continue to refer to Figure 1 In some alternative embodiments, the drive unit 130 has a stopped state. A first shut-off valve 163 may also be provided on the second pipeline 160. The first shut-off valve 163 may be configured to shut off the second pipeline 160 when the drive unit 130 is in the stopped state.

[0054] The shutdown state of the drive unit 130 can be the shutdown state of the transport vehicle. When the transport vehicle is in a shutdown state, the consumption of liquefied fuel medium 300 is usually suspended. Therefore, there is no need to supply vaporized liquefied fuel medium 300 to the drive unit 130.

[0055] When the drive unit 130 is in the off state, in order to prevent the liquefied fuel medium storage device 110 from continuing to directly supply vaporized liquefied fuel medium 300 to the drive unit 130 through the second pipeline 160, a first shut-off valve 163 can be installed on the second pipeline 160 to control the opening and closing of the second pipeline 160. The first shut-off valve 163 can be manually controlled or electrically controlled.

[0056] In the above implementation process, by installing a first shut-off valve 163 on the second pipeline 160, the second pipeline 160 is shut off when the drive device 130 is in a stopped state. This reduces the risk of fire or explosion caused by residual liquefied fuel medium 300 in the drive device 130, and also reduces the risk of excessive stress on the internal seals and valves of the drive device 130 caused by vaporized liquefied fuel medium 300, which could lead to damage to these components. Furthermore, it reduces the waste of liquefied fuel medium 300.

[0057] Please continue to refer to Figure 1 In some optional embodiments, the liquefied fuel medium storage device 110 may have a second storage device connection port 112, which may be located at the upper end of the liquefied fuel medium storage device 110. The liquefied fuel medium supply device 120 may have a second supply device connection port 122, which may be located at the lower end of the liquefied fuel medium supply device 120. The second storage device connection port 112 may be connected to the second supply device connection port 122 via a third pipeline 170. A second shut-off valve 171 may be provided on the third pipeline 170. The second shut-off valve 171 may be configured to switch to an open state when the liquefied fuel medium storage device 110 needs to be replenished with liquefied fuel medium 300.

[0058] Based on the foregoing description, the lower part of the liquefied fuel medium supply device 120 contains the liquid fuel medium. Therefore, by providing a second supply device connection port 122 at the lower end of the liquefied fuel medium supply device 120, and leading a third pipeline 170 from the second supply device connection port 122 to the second storage device connection port 112 at the upper end of the liquefied fuel medium storage device 110, it is possible to replenish the liquid fuel medium in the liquefied fuel medium supply device 120 back into the liquefied fuel medium storage device 110. The second shut-off valve 171 can be manually controlled or electrically controlled.

[0059] It is worth mentioning that when the vaporized liquid fuel medium in the liquefied fuel medium storage device 110 is transported to the liquefied fuel medium supply device 120, the pressure in the liquefied fuel medium supply device 120 usually increases, thereby enabling the liquid fuel medium in the liquefied fuel medium supply device 120 to flow back to the liquefied fuel medium storage device 110.

[0060] The scenario where the liquid fuel medium in the liquefied fuel medium supply device 120 needs to be returned to the liquefied fuel medium storage device 110 can be that after the transport vehicle has delivered the liquefied fuel medium 300 to the destination, in order to ensure the basic transport volume of the liquefied fuel medium 300 in the liquefied fuel medium storage device 300, the second shut-off valve 171 can be opened to achieve the return of the liquefied fuel medium 300.

[0061] In the above implementation process, by setting a third pipeline 170 in the liquefied fuel medium storage device 110 and the liquefied fuel medium supply device 120 for backfilling the liquefied fuel medium 300 to the liquefied fuel medium storage device 110, and correspondingly setting a second shut-off valve 171, the liquefied fuel medium 300 is backfilled through the third pipeline 170, thereby ensuring the basic transport volume of the transport vehicle during the transfer of the liquefied fuel medium 300, and ultimately improving the ease of use of the liquefied fuel medium storage system 100.

[0062] Please continue to refer to Figure 1 In some alternative embodiments, a spray head 172 may be provided at the end of the third conduit 170 that is connected to the liquefied fuel medium storage device 110. The spray head 172 may extend from the upper end of the liquefied fuel medium storage device 110 into the liquefied fuel medium 300 and may be located in the liquefied fuel medium storage device 110 near the upper end.

[0063] Since the temperature of the liquefied fuel medium 300 in its gaseous and liquid states is typically different, and the temperature of the liquid liquefied fuel medium 300 is generally lower, the spray head 172 can atomize the liquid liquefied fuel medium 300 replenished from the liquefied fuel medium supply device 120 by spraying, thereby increasing the contact area between the liquid and gaseous liquefied fuel medium 300. This improves the heat exchange efficiency between the two liquefied fuel media 300 in different states, thus better cooling the vaporized liquefied fuel medium 300.

[0064] In the above process, the liquid liquefied fuel medium 300 replenished from the liquefied fuel medium supply device 120 is atomized by spraying through the spray head 172, which increases the contact area between the liquid liquefied fuel medium 300 and the gaseous liquefied fuel medium 300, thereby better cooling the vaporized liquefied fuel medium 300 so that the vaporized liquefied fuel medium 300 is liquefied, and finally further reducing the pressure in the liquefied fuel medium storage device 110.

[0065] Please continue to refer to Figure 1In some optional embodiments, the liquefied fuel medium storage device 110 may have a third storage device connection port 113, which may be located at the lower end of the liquefied fuel medium storage device 110. The liquefied fuel medium supply device 120 may have a third supply device connection port 123, which may be located at the upper end of the liquefied fuel medium supply device 120. The third storage device connection port 113 may be connected to the third supply device connection port 123 via a fourth pipeline 180. The height of the lower end of the liquefied fuel medium storage device 110 in the direction parallel to gravity may be greater than the height of the upper end of the liquefied fuel medium supply device 120 in the direction parallel to gravity. A third shut-off valve 181 may be provided on the fourth pipeline 180. The third shut-off valve 181 may be configured to switch to an open state when the liquefied fuel medium supply device 120 needs to be replenished with liquefied fuel medium 300.

[0066] In other words, the height of the liquefied fuel medium storage device 110 can be higher than the height of the liquefied fuel medium supply device 120. This facilitates the direct delivery of the liquefied fuel medium 300 in liquid state from the liquefied fuel medium storage device 110 to the liquefied fuel medium supply device 120 via the fourth pipeline 180. The third shut-off valve 181 can be manually controlled or electrically controlled.

[0067] In the aforementioned process, if the pressure in the liquefied fuel medium storage device 110 is reduced through the first pipeline 140, the second pipeline 160, and the safety valve 162, but the pressure in the liquefied fuel medium storage device 110 remains too high, or if fuel replenishment to the drive device 130 through the first pipeline 140 and the second pipeline 160 still cannot provide sufficient fuel, etc., the third shut-off valve 181 can be opened to allow the liquefied fuel medium 300 in the liquefied fuel medium storage device 110 to be directly transported to the liquefied fuel medium supply device 120, thereby further reducing the pressure in the liquefied fuel medium storage device 110. This provides further assurance that the pressure in the liquefied fuel medium storage device 110 does not exceed the standard. It also ensures, to a certain extent, the supply of fuel required by the drive device 130.

[0068] In some alternative embodiments, the liquefied fuel medium 300 may include liquefied hydrogen.

[0069] In the above-described process, hydrogen, as a clean and efficient energy carrier, possesses unique advantages in the energy revolution. Therefore, by using the liquefied fuel medium storage system 100 provided in the preceding embodiments of this application for the storage and transportation of liquefied hydrogen, the storage and transportation efficiency of liquefied hydrogen is improved. This provides new technical support for the development of hydrogen energy.

[0070] Please refer to Figure 2 The figure is a schematic diagram of the structure of the transport vehicle 10 provided in an embodiment of this application. Based on the same concept, an embodiment of this application provides a transport vehicle 10, which may include a transport pallet 200 and the liquefied fuel medium storage system 100 described in the preceding embodiments. The liquefied fuel medium storage device 110 may be disposed on the pallet 200. The liquefied fuel medium supply device 120 may be disposed below the pallet 200.

[0071] The above implementation process is the same as that of the liquefied fuel medium storage system 100 described in the previous embodiments, and will not be repeated here.

[0072] In summary, the liquefied fuel medium storage system 100 and transport vehicle 10 provided in the various embodiments of this application, by configuring a liquefied fuel medium supply device 120 for powering the drive device 130 in the liquefied fuel medium storage system 100, enable the vaporized liquefied fuel medium 300 in the liquefied fuel medium storage device 110 to be transferred to the liquefied fuel medium supply device 120 through the first pipeline 140. This achieves fuel replenishment for the liquefied fuel medium 300 power supply device and also enables pressure adjustment in the liquefied fuel medium storage device 110. This further improves the efficiency of storing and transporting the liquefied fuel medium 300. By setting a second pipeline 160 with a second pressure trigger valve 161, a safety valve 162, and a fourth pipeline 180 at the first pipeline branch point 142 of the first pipeline 140, further assurance is provided to ensure that the pressure in the liquefied fuel medium storage device 110 does not exceed the standard. By employing a first check valve and a second check valve as the first pressure-triggered valve 141 and the second pressure-triggered valve 161 respectively, the backflow of liquefied fuel medium 300 is restricted, further ensuring that the pressure in the liquefied fuel medium storage device 110 does not exceed the standard. By installing a first shut-off valve 163 on the second pipeline 160, the second pipeline 160 is shut off when the drive device 130 is in a stopped state, reducing the risk of accidents and minimizing waste of liquefied fuel medium 300. By configuring a third pipeline 170, the liquefied fuel medium 300 can be replenished through the third pipeline 170, thereby ensuring the basic transport volume of the transport vehicle during the transfer of liquefied fuel medium 300, ultimately improving the ease of use of the liquefied fuel medium storage system 100.

[0073] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A liquefied fuel medium storage system, characterized in that, It includes a liquefied fuel medium storage device, a liquefied fuel medium supply device, and a drive device; The liquefied fuel medium storage device has a first storage device connection port, which is located at the upper end of the liquefied fuel medium storage device; The liquefied fuel medium supply device has a first supply device connection port, which is located at the upper end of the liquefied fuel medium supply device; The first storage device connection port is connected to the first supply device connection port via a first pipeline; The liquefied fuel medium supply device is connected to the drive device via a fuel supply pipeline; A first pressure-triggered valve is installed on the first pipeline; The first pressure-triggered valve is configured to switch to a connected state when the pressure in the first pipeline exceeds a first pressure threshold.

2. The liquefied fuel medium storage system according to claim 1, characterized in that, A vaporizer is installed on the fuel supply pipeline; The vaporizer is configured to vaporize the liquefied fuel medium supplied by the liquefied fuel medium supply device to the drive device; The first pipeline has a first pipeline branch point; The first pipeline branch point is located between the first pressure-triggered valve and the liquefied fuel medium supply device; The fuel supply line has a second branch point; The second pipeline branch point is located between the vaporizer and the drive device; The first pipeline branch point is connected to the second pipeline branch point through the second pipeline; A second pressure-triggered valve is installed on the second pipeline; The second pressure-triggered valve is configured to switch to a connected state when the pressure in the second pipeline exceeds a second pressure threshold; Wherein, the first pressure threshold is less than the second pressure threshold.

3. The liquefied fuel medium storage system according to claim 2, characterized in that, The first pressure-triggered valve includes a first check valve; wherein the conduction direction of the first check valve is from the liquefied fuel medium storage device to the liquefied fuel medium supply device; The second pressure-triggered valve includes a second check valve; wherein the directional flow of the second check valve is from the liquefied fuel medium storage device to the liquefied fuel medium supply device.

4. The liquefied fuel medium storage system according to claim 2, characterized in that, A safety valve is also provided on the first pipeline and / or the second pipeline; The safety valve is configured to discharge gas from the first pipeline and / or the second pipeline when the pressure in the first pipeline and / or the second pipeline exceeds a third pressure threshold. Wherein, the second pressure threshold is less than the third pressure threshold.

5. The liquefied fuel medium storage system according to claim 2, characterized in that, in, The drive unit has a stopped state; The second pipeline is also equipped with a first shut-off valve; The first shut-off valve is configured to shut off the second pipeline when the drive device is in the stopped state.

6. The liquefied fuel medium storage system according to claim 1, characterized in that, The liquefied fuel medium storage device has a second storage device connection port, which is located at the upper end of the liquefied fuel medium storage device; The liquefied fuel medium supply device has a second supply device connection port, which is located at the lower end of the liquefied fuel medium supply device; The second storage device connection port is connected to the second supply device connection port via a third pipeline; A second shut-off valve is installed on the third pipeline; The second shut-off valve is configured to switch to the connected state when the liquefied fuel medium storage device needs to be replenished with liquefied fuel medium.

7. The liquefied fuel medium storage system according to claim 6, characterized in that, A spray head is provided at one end of the third pipeline that is connected to the liquefied fuel medium storage device. The spray head extends from the upper end of the liquefied fuel medium storage device into the liquefied fuel medium and is located inside the liquefied fuel medium storage device near the upper end.

8. The liquefied fuel medium storage system according to claim 1, characterized in that, The liquefied fuel medium storage device has a third storage device connection port, which is located at the lower end of the liquefied fuel medium storage device; The liquefied fuel medium supply device has a third supply device connection port, which is located at the upper end of the liquefied fuel medium supply device; The third storage device connection port is connected to the third supply device connection port through a fourth pipeline; The lower end of the liquefied fuel medium storage device is at a height parallel to gravity than the upper end of the liquefied fuel medium supply device is at a height parallel to gravity. A third shut-off valve is installed on the fourth pipeline; The third shut-off valve is configured to switch to the connected state when the liquefied fuel medium supply device needs to be replenished with liquefied fuel medium.

9. The liquefied fuel medium storage system according to any one of claims 1 to 8, characterized in that, The liquefied fuel medium includes liquefied hydrogen.

10. A transport vehicle, characterized in that, Includes transport pallets and a liquefied fuel medium storage system according to any one of claims 1 to 9; The liquefied fuel medium storage device is disposed on the pallet; The liquefied fuel medium supply device is located below the tray.

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