JP7384509B1 - Liquefied hydrogen transportation system - Google Patents

Abstract

[Purpose] To provide a low-cost liquefied hydrogen transport system in which a tank container containing liquefied hydrogen can be made movable but can be directly placed and fixed, and can serve as a liquefied hydrogen storage tank. [Structure] A tank container A in which two front composite jacks and two rear jacks at the front and rear of a rectangular parallelepiped frame-shaped container body 1 are each equipped with a hydraulic drive, and a hydrogen tank capable of filling with liquefied hydrogen is provided. It is. A truck B having a loading platform 6 on which a tank container A is loaded is provided. The tank container A can be loaded onto and separated from the loading platform 6 from the front side, and after being separated, the tank container A is placed directly on the ground G1. The tank container A is transported between a number of locations in Japan, including a pier F, a hydrogen storage facility C, a hydrogen station D that does not have a liquefied hydrogen storage tank, and a power plant E, and upon arrival at the desired location, the front and rear jacks are immediately raised and lowered. The tank container A is separated from the loading platform 6 and placed directly on the ground surface G1, and liquefied hydrogen can be loaded or discharged immediately after being placed directly on the ground. [Selection diagram] Figure 1

Description

The present invention provides a tank container containing liquefied hydrogen (liquid hydrogen) that can be both mobile and fixed and serve as a liquefied hydrogen storage tank. The present invention relates to a liquefied hydrogen transportation system that can be separated and loaded by lifting and lowering operations, and can be used immediately after being placed directly, can be downsized, and can be expected to meet a wide range of demand at a low price.

Specifically, a tank container equipped with a hydrogen tank that can be filled with liquefied hydrogen is equipped with jacks for lifting and lowering on the front and rear sides, and the jacks are used to move the tank container up and down to load and unload onto a truck bed. It is possible to efficiently circulate between a hydrogen storage facility and a hydrogen station or a hydrogen storage facility and a power plant, and in particular, the tank container can be placed directly, and liquefied hydrogen can be loaded or discharged after being placed directly. The present invention relates to a liquefied hydrogen transportation system that can efficiently carry out liquefied hydrogen.

Regarding liquefied hydrogen, there are on-site and off-site. The on-site type has a configuration in which new liquefied hydrogen is produced at a hydrogen station, and is a rare type in Japan. The off-site type is a general type of hydrogen station that currently has a liquefied hydrogen storage tank (liquefied hydrogen storage tank) but does not produce liquefied hydrogen.

Currently, in most cases, hydrogen fuel is supplied from a liquefied hydrogen storage facility to a general hydrogen station by being transported in the form of high-pressure gas by a hydrogen gas carder trailer (not shown). In this regard, as described in Patent Document 1, the amount that can be transported by a hydrogen gas card trailer is quite small per trailer. At present, the proportion of fuel cell vehicles (FCV vehicles) is quite small, so the transportation capacity of just one vehicle is sufficient.

There are also examples of liquefied hydrogen being transported by tank trucks, but as shown in the prior art on the right side of Figure 31, a small petroleum tank lorry carries about 2 kl (liter), and a medium-sized petroleum tank lorry carries about 4 kl. Large petroleum tank trucks transport approximately 16kl to 20kl. Although it is possible to make short turns to reach medium-sized petroleum tankers, transportation efficiency is inevitably reduced as the vehicle must be left at the hydrogen station upon arrival. When it comes to large petroleum tank trucks, it is difficult to make small turns and it is necessary to leave them at hydrogen stations for the desired amount of time, making efficient transportation difficult.

In addition, as shown in Figure 34, in major transportation companies, shipping containers are placed on platforms a with legs b of a predetermined height in order to arrange cargo, etc. on platforms for logistics efficiency. It was common to install In this case, the height of the center of gravity Mc of the shipping container is located high. In such a logistics relationship, even if a hydrogen tank or a hydrogen container is transported to a hydrogen station, it is expected that it will be installed on the pedestal a.

Patent Document 2 describes how industrial gas is transported (conveyed) while tank containers are loaded on a container-dedicated transport vehicle. In particular, only FIG. 8 describes transportation by truck, but in all descriptions in the specification, the container is described as a transport vehicle 20 exclusively for containers. In the drawings, the vehicle is shown as being towed as a coupled vehicle. Specifically, it is a trailer itself, and the tank container is a trailer that serves as a towed vehicle, and the vehicle that tows the trailer is called a tractor.

In FIG. 8(b) of Patent Document 2, a container is unloaded, but there is no description of the operational configuration of how the container is unloaded. A plurality of wheels are provided at the bottom of the trailer, and it is difficult to imagine that anything other than a crane could be used to unload the cargo from below, but there is no mention of this at all. It is recognized that this type of trailer-based tank container transportation (conveyance) takes into account the transportation efficiency of logistics.

In the current situation, tank trucks filled with liquefied hydrogen (liquid hydrogen) are large and unsuitable for small spaces, but hydrogen stations that install multiple tank trucks of this type require equipment costs. The situation was such that prices had no choice but to rise. In particular, in a hydrogen station, having multiple tank trucks permanently stationed requires not only space but also an increase in equipment costs.

For this reason, transporting hydrogen from a hydrogen storage facility to a hydrogen station requires a relatively large amount of transport, and the operation and transport conditions are comfortable, and hydrogen containers for storage can be separated and installed at low cost. There is a demand for an affordable conveyance system. Furthermore, countermeasures for expensive liquefied hydrogen storage tanks (liquefied hydrogen storage tanks) at hydrogen stations are also desired.

Further, Patent Document 3 discloses an invention of a ferry-type cargo house in which a lifting jack or an outrigger is attached to a container (cabinet) that can be loaded on the bed of a truck. Specifically, the system transports goods by lifting and unloading cargo at a platform 17 (train or ship) through the lifting and lowering drive of a lifting jack.

The container is a conveyance system via 17 platforms, and the container is installed at the platform locations with the bottom part of the lifting jack extending downward, and the center of gravity Mc of the container is always high. There is no mention of lowering the container above ground level for the purpose of increasing logistics efficiency.

Currently, swap body containers are becoming more popular as a container transportation system in which any container and any truck bed are separated and loaded, and great expectations are placed on this transportation system. However, this container is basically a frame a with legs b (see FIG. 34), and the current situation is that the container is not placed directly on the ground for reasons of logistics efficiency.

Japanese Patent Application Publication No. 2021-139375 Japanese Patent Application Publication No. 2015-155717 China Patent Application Publication No. 110422499

Under these circumstances, the problem (technical problem or purpose, etc.) that the present invention is intended to solve is that tank trucks or trailers that can be filled with liquefied hydrogen (liquid hydrogen) have become large and unsuitable for narrow spaces. However, only containers with hydrogen tanks could not be separated (unloaded) and were inefficient. As a result, the container with hydrogen tank can be separated from the loading platform fixed to the truck, making it possible to transport the container with hydrogen tank more efficiently, as well as taking measures against expensive liquefied hydrogen storage tanks (liquefied hydrogen storage tanks) at hydrogen stations. It is desired to realize a liquefied hydrogen transport system that can do this.

Therefore, as a result of intensive research in order to solve the above problems, the inventor has developed the invention of claim 1 into a tank container in which a vertically long hydrogen tank that can be filled with liquefied hydrogen is provided in a rectangular parallelepiped frame-shaped container body. A liquefied hydrogen transport system using a truck as only one vehicle fixed to the rear of the driver's cab as a loading platform on which the entire tank container is loaded and unloaded with a jack, wherein the tank container and the loading platform are The tank container, which is placed directly on a strong ground surface, can be loaded using only the front and rear jacks, and the unloading can also be carried out only by hydraulic drive of the jacks installed at the front and rear of the tank container. The loading and unloading structure includes a slide member that expands linearly outward in the width direction at the front end of the container body by hydraulic drive, and also expands and contracts vertically. Each of the two rear jacks, which are arranged on both sides in the width direction at the rear end of the container body together with the two front composite jacks that extend and retract only up and down, can be hydraulically driven,
A lower loading/discharging port for the liquefied hydrogen is provided at the rear lower side of the vertical hydrogen tank, and the liquefied hydrogen can be loaded and discharged from the rear side of the tank container without being obstructed by the jack. In the truck equipped with the tank container, which is configured to be able to transport the liquefied hydrogen between any one of a plurality of piers, hydrogen storage facilities, hydrogen stations, or power plants in Japan where the liquefied hydrogen is imported, After arriving at the desired location, the liquefied hydrogen can be immediately loaded or discharged into the tank container that is unloaded via the jack and placed directly on the ground, and the bottom of the tank container remains placed directly on the ground. The above problem has been solved by providing a liquefied hydrogen transport system, which is configured so that it can be stored on the hydrogen station, and the hydrogen station is not provided with a liquefied hydrogen storage tank.

The invention according to claim 2 is characterized in that, in the liquefied hydrogen transport system according to claim 1, the hydraulic pressure generators for both the front composite jacks and both the rear jacks are provided in the tank container. The above problem was solved by using a liquefied hydrogen transport system. The invention according to claim 3 is the liquefied hydrogen transport system according to claim 1 or 2, wherein the hydraulic pressure generators for both the front composite jacks and the rear jacks are provided in the truck, and the truck and the tank container The liquefied hydrogen transport system is characterized in that it is configured such that both the front composite jacks and both the rear jacks of the tank container can be driven only when the hydraulic circuit is connected to the tank container. The above problem was solved. In the liquefied hydrogen transport system according to claim 1 or 2, the tank container is placed on the second floor via stacking auxiliary pieces at four corners. Alternatively, the above problem is solved by providing a liquefied hydrogen transport system that can be stacked on three or more floors.

In the invention of claim 1, the tank container containing liquefied hydrogen (liquid hydrogen) can be both mobile and fixed in a direct position, and also serves as a liquefied hydrogen storage tank, and can be used in a wide range of applications while being inexpensive. The effect is expected to be in great demand. Specifically, hydrogen will be transported between piers, hydrogen storage facilities, hydrogen stations, power plants, and other hydrogen supply stations in Japan using trucks loaded with tank containers, and hydrogen will be placed on the ground at each location. The tank container can be directly placed directly by the lifting and lowering action of the front composite jack and both the rear jacks, and can be stored as it is, thus functioning as a liquefied hydrogen storage tank. Furthermore, in place of the separated tank container, another tank container can be immediately loaded onto the truck, providing an extremely good liquefied hydrogen transport system that makes on-site work extremely simple and quick. be. Furthermore, at a desired location, the tank container can be placed directly to lower the center of gravity for stable and secure installation, providing an effect different from that of a physical distribution system.

Moreover, the invention of claim 1 has a particularly great effect that the work of loading and discharging liquefied hydrogen into the tank container immediately after placing the tank container directly can be carried out without using a chair or a step stool. In addition, since both front side composite jacks exist via a sliding member that slides outward in the width direction at the front end of the tank container, when loading the tank container onto a truck, the tank container The distance between adjacent jacks only at the front position is widened, making it difficult for them to come into contact with the truck bed, making it possible to provide a liquefied hydrogen transport system that is extremely easy to drive and operate for the truck driver. In addition, the widening work for both front composite jacks is done manually and can be provided at minimal cost. In particular, liquefied hydrogen can be efficiently transported from each pier to a hydrogen storage facility, hydrogen station, or power plant. In the present invention, in particular, the hydrogen station is not configured without a liquefied hydrogen storage tank, so that the hydrogen station can be installed only by installing a strong ground section, and the hydrogen station can be installed in the main body. The tank container, which is a component of the invention, plays the role of a moving hydrogen storage tank, and a hydrogen station that can achieve the object of the invention can be made at a low price and can meet many demands.

As shown on the right side of Figure 30, in the prior art, liquefied hydrogen tanks were transported between hydrogen storage facilities or hydrogen stations using tank trucks or trailers; Was. This was to improve logistics efficiency and increase operating rates. When installed at the desired location, the center of gravity of the tank truck or trailer is also high, making it difficult to load or discharge liquefied hydrogen using a chair or step stool, making it impossible to work efficiently. However, in the invention of claim 1, as shown on the left side of FIG. 27, the tank container is directly placed via a jack in the hydrogen storage facility or hydrogen station to which the tank container is transported (static configuration), and the center of gravity is This low height has the unique advantage of allowing loading and unloading of liquefied hydrogen to be carried out without the use of chairs or step stools (dynamic configuration). At the same time, by lowering the center of gravity when placed directly, it allows for stable installation and provides safety and security even for hazardous materials.

Further, in the invention according to claim 2, the hydraulic pressure generators for both the front composite jacks and both the rear jacks are provided in the tank container, so that, in particular, the operation of raising and lowering the tank container is controlled. It has the advantage of being simple and quick. In the invention according to claim 3, the hydraulic pressure generators for both the front composite jacks and the rear jacks are provided in the truck, and the tank container is activated only when the hydraulic circuit between the truck and the tank container is connected. Since both the front composite jack and the rear jack are configured to be able to be driven, it is convenient for operators of hydrogen stations, etc. to deploy the tank container that is not equipped with a hydraulic pressure generator. This allows for relatively low capital investment. The operation of raising and lowering the tank container is performed by the driver of the truck, and the person in charge of the tank container can perform the work easily.

In the invention of claim 4, the tank containers can be stacked on top of each other to form two or three or more floors at a desired location such as a hydrogen storage facility, hydrogen station, or power plant, thereby further saving space. It can serve as a hydrogen storage tank. The ground portion in this case is of course made of concrete, which is hard and has excellent strength.

In this specification, the term "jack" is a generic term that includes the front composite jack and the rear jack, both of which are important components. Claim 1 describes two front side composite jacks and two rear side jacks, but hereinafter, both front side composite jacks and both rear side jacks are described, and both have the same or equivalent meaning.

The liquefied hydrogen transport system of the present invention comprises a hydrogen storage facility and a hydrogen station (first route), a hydrogen storage facility and a power plant (second route), or a hydrogen storage facility and another hydrogen supply station (third route). FIG. 2 is a schematic diagram of a transport system. 1 is a schematic diagram of a liquefied hydrogen transport system between hydrogen storage facilities and hydrogen stations in the Kanto region of Japan. The liquefied hydrogen transport system of the present invention is provided between a hydrogen storage facility and a power plant (second route), between a hydrogen storage facility and a hydrogen station (first route), or between a hydrogen storage facility and another hydrogen supply station (first route). 3) is a schematic diagram of a conveyance system. A medium-sized tank container, (A) is a perspective view of the tank container, (B) is a partial perspective view of the front side of the tank container, (C) is a rear view of the tank container, ( D) is a front view of the front side of the tank container, and (E) is a side view of the tank container lowered by front and rear jacks and placed directly on the ground. Another medium-sized tank container, (A) is a perspective view of the tank container, (B) is a rear view of the tank container, (C) is a front view of the front side of the tank container, (D ) is a side view of the same tank container loaded onto a loading platform fixed to the rear of the truck while shortening the front and rear jacks, (E) is the (W) location at the four corners of the truck loading platform, and (F) is the tank container. (G) is a perspective view of the main components of (F). (A) is a sectional view of both front composite jacks with the slide members closed, (B) is a sectional view of both front composite jacks with the slide members extended, and (C) is a perspective view of (B). It is. FIG. 2 is a status diagram of the liquefied hydrogen transport system of the present invention in FIG. 1, in which (A) is a work status diagram of separating and loading tank containers in a hydrogen station or power plant, and (B) is a status diagram of tank containers in a hydrogen storage facility. This is a work status diagram of separation and loading. In the liquefied hydrogen transport system of the present invention, (A) (i), (ii), (iii), and (iv) are loading work status diagrams of a tank container of a type with a built-in hydraulic pressure generator inside the container, and (B) ) is an enlarged view of part (S) of (A) with the tank container separated and placed directly on the ground. FIG. 2 is a hydraulic circuit diagram of the present invention. FIG. 2 is a schematic diagram of a liquefied hydrogen transport system according to another embodiment of the present invention, which is a transport system between a hydrogen storage facility and a hydrogen station (first route) or between a hydrogen storage facility and a power plant (second route). . FIG. 10 is a status diagram of the liquefied hydrogen transport system, in which (A) is a work status diagram of tank container separation and loading within a hydrogen station or power plant, and (B) is a work status diagram of tank container separation and loading within a hydrogen storage facility. It is a work status diagram of loading. In the liquefied hydrogen transport system of the present invention, (i), (ii), (iii), and (iv) are loading work status diagrams of tank containers of a type in which a hydraulic pressure generator is built into the truck. (A) is a plan view of the work state when the truck bed is being inserted into the bottom of the tank container with the front compound jack of the tank container extended, and (B) is a front view of point (Q) in (A). It is. (A) is a partially perspective view of the tank container from the front side, and (B) is a partially sectional side view of (A). (A) is a state diagram in which tank containers are loaded from the front side of the loading platform, and (B) is a diagram in which the tank containers are loaded from the front side of the loading platform in another embodiment. FIG. 7 is a side view of another embodiment in which the tank container is placed directly on the ground. (A) is a perspective view of two stacked tank containers of the same structure, and (B) is a side view of (A), with the lower tank container placed directly on the ground. FIG. 3 is a perspective view of another embodiment of a tank container. Another medium-sized tank container, (A) is a perspective view of the tank container, (B) is an enlarged perspective view of the front side of the tank container, (C) is a rear view of the tank container, (D) is a side view of the same tank container lowered by front and rear jacks and placed directly on the ground. Yet another medium-sized tank container, (A) is a perspective view of the tank container, (B) is an enlarged perspective view of the rear side of the tank container, and (C) is the back side of the rear side of the tank container. FIG. 3D is a side view of the same tank container lowered by front and rear jacks and placed directly on the ground. FIG. 20 is a hydraulic circuit diagram of FIG. 19; It is a large type tank container, and (A) is a perspective view of the tank container, (B) is a partial sectional view taken along the RR arrow in (A), and (C) is a sectional view of an intermediate position jack location. . Another large type tank container, (A) is a perspective view of the tank container, and (B) is a partial sectional view taken along arrow U-U in (A). FIG. 2 is a schematic diagram of another liquefied hydrogen transport system of the present invention, which is a transport system between a hydrogen storage facility and an existing hydrogen station or between a hydrogen storage facility and an existing power plant. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a liquefied hydrogen transportation system of the present invention, which is a transportation system between a hydrogen storage facility and an existing power plant or between a hydrogen storage facility and an existing hydrogen station. (A) is a schematic diagram of the liquefied hydrogen transport system between each wharf and hydrogen storage facility in the Kanto region of Japan, and (B) shows the main components of the present invention from an international container (20 feet) at the wharf. This is the implementation situation 1 of the present invention by transferring to a tank container (medium-sized type). (A) is a schematic view of the wharf, showing a group of international containers (20 feet) temporarily placed on the wharf and a perspective view of this one international container; (B) is a perspective view of the international container taken from the international container. FIG. 2 is a diagram illustrating an example of a one-step implementation of transferring the main components of a tank container (medium-sized type) to a tank container (medium-sized type). At the wharf, we transferred the international container (40 feet) to the tank container (large type), which is the main component of the present invention, and then loaded the tank container (large type) onto the truck bed and moved it to the hydrogen storage facility. This is implementation situation 2 of the present invention, in which the present invention is transported to a hydrogen station, a power plant, or the like. It has a structure in which tank containers can be stacked, and (A) is a partial perspective view of the tank container in the upper position as seen from the bottom side, and (B) is a partial perspective view as seen from the top side of the tank container in the lower position. (C) is a perspective view of the main part of the tank container showing the lower surface side and the upper surface side of the stacked portion, and (D) is a perspective view of an embodiment different from (C). It is a simple comparison diagram between the present invention and the prior art. A comparative diagram of a tank container-equipped truck according to the present invention (left side) and a conventional tank lorry (right side), in which (A) is a simplified diagram of both semi-medium-sized (small) trucks, (B) is a simplified diagram of both medium-sized trucks, (C) is a large-scale simplified diagram and the main configuration of the present invention. FIG. 2 is a diagram showing the tank container according to the present invention placed directly on the ground. 1 is a simplified diagram of a current hydrogen station according to the prior art. (A) is a state diagram of a platform, a known container, and a pedestal with legs, and (B) is a perspective view of the known container and pedestal with legs.

EMBODIMENT OF THE INVENTION Hereinafter, embodiments of the hydrogen transport system of the present invention will be described based on the drawings. The main components of the present invention include a tank container A and a truck B (see FIGS. 1, 2, 3, 4, and 5, etc.). The tank container A has a rectangular parallelepiped frame-shaped container body 1 provided with two unique front compound jacks 2, 2 and two rear side jacks 3, 3. The tank container A includes a hydrogen tank 4 filled with liquefied hydrogen (liquid hydrogen). The truck B has a power unit (not shown) and a loading platform 6 fixed to the rear of the driver's cab 5, and is configured such that the tank container A can be loaded and separated on the loading platform 6. (See Figures 5, 7 and 8).

The tank container A can be loaded onto and separated from the loading platform 6 of the truck B by lifting and lowering the hydrogen tank 4 in the container body 1, the front composite jacks 2, 2, and the rear jacks 3, 3. (See FIGS. 1 to 3, 5, 7, and 8). A truck B loaded with a full or empty tank container A filled with liquefied hydrogen is transported to a desired hydrogen storage station C and a plurality of desired hydrogen stations D (first route), or between the hydrogen storage station C and a power plant E ( 2nd route) or transported between the hydrogen storage station C and another hydrogen supply station P (3rd route), and place the full tank container A directly at the desired hydrogen station or power plant E. This is a liquefied hydrogen transport system in which an empty tank container A that has been placed directly at the location is loaded onto the truck B and is carried out once or multiple times (see FIGS. 1 and 3). Note that the first to third routes are not in the order of first, second, and third, but are in a parallel relationship.

Hydrogen supply destinations include the hydrogen station D or power plant E, as well as other hydrogen supply stations P such as major transportation companies and local governments. In the hydrogen station D, as shown in FIG. (also referred to as a hydrogen pressure accumulator) and a dispenser 95. There is a pre-cooler, but it was omitted. The route between the other hydrogen supply station P and the hydrogen storage station C may be referred to as a third route.

Further, as shown in FIG. 33, the currently existing hydrogen station, that is, the current hydrogen station Dex, is not equipped with a liquefied hydrogen storage tank 91 for a predetermined amount [generally, about 300 kiloliters (kl)]. ing. Often more or less than this. The hydrogen storage facility C is equipped with a liquefied hydrogen storage tank 91 with a large capacity (currently around 10,000 kl), a vaporizer 92, and a compressor 93. Since the purpose of the present invention is to transport, the vaporizer 92 and compressor 93 are omitted in FIGS. 1, 2, 3, 10, 24, and 25.

In the power plant E, as shown in FIG. A gas turbine 98 and a generator 99 are provided, and the generator 99 is configured to output electric power. In addition, in the case of the current power plant Eex, as shown in Figure 25, a liquefied hydrogen storage tank 91 with a large capacity [currently about 10,000 kl to about 300 kiloliters (kl)] is installed. This is the current situation in many cases.

Truck B loaded with the full tank container A is transported to a desired or designated hydrogen station D location, where the tank container A is separated from the loading platform 6 and placed on the ground surface G1. [See the dotted line frame on the right side of each of FIGS. 1, 3, 10, 24, and 25, and the left side of FIG. 7(A)]. The direct placement basically means that the tank container A is installed so that the bottom surface of the tank container A is in direct contact with the ground portion G1 (see FIG. 32). Here, the ground portion G1 is a portion as a concrete pedestal with a predetermined thickness (approximately 30 cm) provided on the ground or the ground G, and the height is several times higher than the ground or the ground G. It is formed cm taller, but it can also be of the same height. In addition, places where iron plates or wooden plates are laid are also included in the ground portion G1.

Regarding the ground portion G1, when a slight gap (about several cm, around 5 cm) is provided in the ground portion G1, or when a solid spacer member 99 such as a pedestal with a height h of about several cm is interposed. However, it is included in the category of direct placement (see FIG. 16). In this way, installing and storing the tank container A directly (see Figure 32) lowers the center of gravity Mc of the tank container A, making it particularly difficult to tip over and making it more stable. A can be stored safely, giving peace of mind. Regarding direct placement, the basic content is for the tank container A, but it is particularly effective for the full tank container A1, but the same is true for the empty tank container A0. In other words, direct storage can be stabilized and made safer regardless of whether it is full or empty.

Furthermore, by directly placing the tank container A, the work can be done in one step. Specifically, loading of liquefied hydrogen from the liquefied hydrogen storage tank 91 to the tank container A, and loading of liquefied hydrogen from the tank container A to the hydrogen station D or the power plant E, or even inside the equipment of the other hydrogen supply station P It is possible to do the work of discharging liquefied hydrogen to equipment and appliances without using a chair or a step stool.

As shown in FIG. 30, the ability to perform such a one-step operation can also be called "dynamic configuration." As mentioned above, the ability to lower the liquefied hydrogen tank container A using a jack using hydraulic drive and store it directly (low center of gravity Mc) is a "static configuration" as a device, but it is a one-step system. The result is an organic and effective effect of collaboration. Furthermore, the ability to directly store liquefied hydrogen tank container A is completely different from conventional gasoline storage, and requires installation on the ground G1 (high pressure gas storage method, etc.). For example, it is preferable to place it on the ground in a well-ventilated place.

Here, in the description of the present invention, as words indicating the direction of the tank container A, the front-rear direction (longitudinal direction) is the X-axis direction, the width direction is the Y-axis direction, and the up-down direction is the Z-axis direction, as shown in FIG. It is used as shown in FIG. 5(B) and FIG. 5(A). Specifically, the X-axis direction in the front-rear direction refers to the longitudinal direction of the direction connecting the front side and the rear side of the tank container A and the truck B, and the width direction refers to the longitudinal direction of the tank container A and the truck B. refers to the Y-axis direction that indicates the width of the Further, the vertical Z-axis direction refers to a direction indicating the height of the tank container A and the truck B. The X-axis, Y-axis, and Z-axis directions in the front-rear direction, width direction, and up-down direction are shown in the main drawings.

[About tank container A]
The tank container A mainly includes a container body 1 having a substantially rectangular parallelepiped frame shape, and a hydrogen tank 4 housed inside the container body 1. The hydrogen tank 4 includes various types of structures such as size and shape, which will be described later. The container body 1 has a substantially rectangular parallelepiped frame shape that is vertically elongated in the X-axis direction of the container body 1. The tank container A has a large type, a medium type, and a small type in terms of size, as shown on the left side of FIG. 31, but each type has the same configuration.

Specifically, as shown in FIGS. 4 and 5, the container main body 1 as a medium-sized type has front members 12a, 12b, 12c, Four pieces 12d are fixed to each other. Furthermore, the four rear side members 13a, 13b, 13c, and 13d are fixed to the rear end sides of the four horizontally long members 11a, 11b, 11c, and 11d, respectively, thereby forming the container as a vertically long substantially rectangular parallelepiped frame. A main body 1 is configured.

A plurality of reinforcing diagonal members 14, 14, . . . are provided on both sides of the container body 1. Further, a plurality of reinforcing members 15a, 15a, . . . are provided on the ceiling surface of the container body 1, and a plurality of reinforcing members 15b, 15b, . The number of reinforcing diagonal members 14, 14, . . . may be increased or decreased compared to the number of the embodiments shown in the drawings (FIGS. 4 and 5), and the number of reinforcing members 15a, 15b may be similarly increased or decreased. In particular, the reinforcing member 15a on the ceiling surface may be omitted. This is done in consideration of taking out the hydrogen tank 4.

As shown in FIGS. 4(A) and 4(B), the container body 1 is vertically expanded and contracted via slide members 22, 22 which slide outward in the width direction (by hydraulic drive) at the front end of the container body 1. Two front composite jacks 2, 2 are provided. Specifically, a cylindrical fixing part 23 is attached to the front member 12d of the front end of the container body 1 (see the right side of FIG. 4(A), FIG. 4(B), and FIGS. 12(A) and (B)). The slide members 22, 22 are slidably provided on both sides of the interior of the cylindrical fixing portion 23, and hydraulic jacks 21, 21 are fixed to the tips of the slide members 22, 22. The hydraulic jacks 21, 21 are composed of a cylinder portion 21a and a piston portion 21b.

As shown in FIG. 6, the front composite jack 2 includes a part of the cylindrical fixing part 23, a slide member 22 that can slide inside the cylindrical fixing part 23, and a slide member 22 fixed to the tip of the slide member 22. It is composed of a hydraulic jack 21. In FIGS. 6A and 6B, the left half and right half correspond to the front composite jack 2, respectively. In particular, the sliding member 22 of the front composite jack 2 is configured to slide under hydraulic drive from the hydraulic pressure generating device 7 [see FIG. 6(C)].

In particular, a large force is applied to the cylindrical fixing portion 23, and the front member 12d is required to have a strong member structure, but this is a known technique and is omitted from the explanation and detailed drawings in the embodiment. In addition, two rear side jacks 3, 3 are respectively fixed to the rear end of the container body 1 (on the left side in FIG. 4(A)), which are provided on both sides in the width direction and extend and contract up and down while remaining immovable in the width direction. There is. Specifically, as shown in FIG. 4, the hydraulic jacks 31, 31 of the rear side jacks 3, 3 are fixed to the rear side members 13a, 13c at the rear end of the container body 1, respectively, and the hydraulic jacks 31, 31 are provided with cylinder portions 31a, 31a and piston portions 31b, 31b, and the piston portions 31b, 31b are configured to be extendable and retractable downward from the cylinder portions 31a, 31a.

Both the rear side jacks 3, 3 and both the closed front side composite jacks 2, 2 are set in a range that is equal to or does not exceed both widthwise ends of at least the driver's cab 5 of the truck B [FIG. (C) and the dashed line in the same figure (D)]. Furthermore, when the both front side composite jacks 2, 2 are stored, as shown in FIGS. The width is equal to or does not exceed the width of the driver's cab 5, and is set to fit inward in the width direction. At the same time, the container body 1 is also regulated to a width that is equal to or does not exceed the width of the driver's cab 5.

Specifically, when the slide members 22, 22 are closed, the width is often smaller than the width of the loading platform 6 [FIG. 15(A)], but the width may be equal to or slightly larger than the loading platform 6 (FIG. 15(A)). Even if it is, the width is always set to a range that is equal to or does not exceed the width of the driver's cab 5 [FIG. 15(B)]. In other words, the front composite jacks 2, 2 are configured so as not to protrude from the width of the driver's cab 5 when stored.

When both the front composite jacks 2, 2 slide and protrude outward from the width direction of the container body 1, the amount of sliding is within several tens of cm to about 1 m [FIGS. 4(D) and 5] (C)]. With this configuration, by widening the distance between the piston parts 21b and 21b of the hydraulic jacks 21 and 21, the loading platform 6 of the truck B can be moved closer to the piston part, as shown in FIGS. 13(A) and 13(B). 21b, 21b, and the operation is easy to operate, and the tank container A can be separated and loaded from the loading platform 6 safely and quickly. In addition, if the sliding amount is made longer than this, as shown in FIGS. 4(A) and 4(B), the front member 12d, the cylindrical fixing portion 23, and the sliding members 22, 22 may be made of a stronger material. It is necessary to design and manufacture it as a component.

Furthermore, in order to increase the sliding amount, the cylindrical fixing part 23 is made into a double structure, as shown in FIGS. 19(A), (B), and 20(A). That is, the cylindrical fixing parts 23, 23 are double fixed to the front member 12d at the front end of the tank container A, and sliding members 22, 22 (manually) are provided on each of them outward in opposite directions. ing. Hydraulic jacks 21, 21 are attached to the outer ends of the slide members 22, 22. As described above, due to the presence of the double sliding members 22, 22, the distance between the piston parts 21b, 21b of both the hydraulic jacks 21, 21 of the front composite jacks 2, 2 is configured to be large (approximately 1.5 m, or more). ), the loading platform 6 of the truck B can be more smoothly inserted into the tank container A, and transport can be carried out with excellent maneuverability and efficiency.

The relationship between the tank container A and the truck B is such that when the tank container A is loaded (mounted) on the loading platform 6 of the truck B, the tank container A is placed almost entirely on the loading platform 6. In particular, only the rear side jacks 3, 3 are attached so as to protrude from the rear end of the loading platform 6 [see FIG. 5(D)]. Further, as shown in FIGS. 8, 12, and 13(A), the tank container A is configured so that it can be loaded onto the loading platform 6 of the truck B only from the front side of the tank container A. Furthermore, as shown in FIGS. 7 and 11, the separation and loading configuration of the tank container A is described.

a lower end surface of the piston portion 21b when the slide member 22 of the front composite jack 2 is retracted (retracted) and the piston portion 21b of the hydraulic jack 21 is retracted (retracted); There is a gap α of several centimeters between the top surface of the loading platform 6 of the truck B (see right side of FIG. 4(D)), and the slide member 22 is configured to be slidable.

Furthermore, even when the tank container A is placed directly on the ground G1, the gap α between the ground G1 and the lower end surface of the piston portion 21b of the hydraulic jack 21 of the front composite jack 2 is approximately several centimeters. [See FIG. 4(E)]. Similarly, when the piston portion 31b of the hydraulic jack 31 of the rear side jack 3 is retracted (retracted), a gap α is formed between the piston portion 31b and the lower end surface of the piston portion 31b [FIGS. 8(B)]. Note that the gaps α in the front and rear positions when the tank container A is placed directly on the ground portion G1 in FIG. 4(E) are the same, but may differ slightly.

[About hydrogen tank 4]
The hydrogen tank 4 is also manufactured into large types, medium-sized types, and small (semi-medium-sized) types. The large type is configured as a vertically elongated hydrogen tank 4A as shown in FIGS. 22, 23, 28, and the left side of FIG. 31(C). In terms of size, it corresponds to the current large petroleum tank truck (16kl to 20kl) [see the right side of Figure 31(C)], but the size of the truck B and tank container A of the present invention on the left side of the figure is as follows. It is a tank container A with a container body 1, and since the specific gravity of hydrogen is 0.071, which is less than 1/10 of the specific gravity of gasoline, it will not exceed the capacity and can be transferred to the present invention, which can be placed directly. This is a sensual image diagram.

Moreover, as a medium-sized type, as shown in FIG. 5, it may be configured as the spherical hydrogen tank 4B. This corresponds to the current medium-sized tank lorry (4kl) [see the right side of FIG. 31(B)], and in this case also, in the present invention, it is a tank container A with a container body 1, so this is also an image diagram. Furthermore, the small type corresponds to the current small tank truck (2kl) [see right side of FIG. 31(A)]. The small-sized hydrogen tank 4 is smaller in length and size than the above-mentioned medium-sized type (see FIG. 4), and the constituent members are of the same structure, so a description thereof will be omitted.

As mentioned above, products with various types of structures such as size and shape have been developed and manufactured, but liquefied hydrogen has a specific gravity of 0.071 and maintains a temperature of - (minus) 273 degrees Celsius. It has a structure that can withstand transportation. In this way, the hydrogen tank 4 is filled with liquefied hydrogen as needed, and is configured to be stored and transported at appropriate temperature and humidity. Furthermore, the vertically elongated hydrogen tank 4A in FIG. 4 may be downsized to have a medium-sized structure, or the spherical hydrogen tank 4B in FIG. 5 may be made into a large-sized type, and the present invention is not limited to the embodiment. In particular, as shown in FIGS. 4, 16 to 20, and 26 to 29, there is a lower loading/discharging port 42 for liquefied hydrogen at the rear lower side of the vertically long hydrogen tank 4A, and a lower loading/discharging port 42 for liquefied hydrogen at the upper side. , upper loading/discharging ports 43 are provided at 44 manhole locations. In the case of the spherical hydrogen tank 4B shown in FIG. 5, a lower loading/discharging port 42 is also provided.

Furthermore, in the hydrogen tank 4, in the case of the horizontally elongated hydrogen tank 4A, FIGS. As shown in FIG. 2, it is stably held by a support member 41 provided at the bottom of the container body 1. Further, as shown in FIG. 5, in the case of the spherical tank 4B, it is configured to stand upright on a circumferential seat 19a provided on the bottom surface of the spherical tank 4B, and these are provided on the lower side of the container body 1. The spherical tank 4B is further supported by a plurality of support rods 19c around the spherical tank 4B.

[About the lock configuration between tank container A and loading platform 6]
When the tank container A is loaded on the loading platform 6 of the truck B, a locking device is provided to prevent it from coming off due to vibrations of the truck B or the like. Specifically, as shown in FIGS. 5(E), (F), and (G), locking members 61 are provided at the four corners of the loading platform 6, and corresponding to the locking members 61, the Lockable members 17 are provided at the four corners of the lower surface of the tank container A. In operation, as soon as the tank container A is loaded on the loading platform 6, the handle 61b is turned approximately 90 degrees, so that the protrusion 61a of the locking member 61 enters the hole 17a of the locking member 17 and locks the cage. In this state, the tank container A is loaded onto the loading platform 6 of the truck B and transported.

[About hydraulic control mechanism]
The hydraulic control mechanism is a control mechanism for both the front composite jacks 2, 2 and both the rear jacks 3, 3. Specifically, as shown in FIG. 9, this is a lifting control mechanism for each of the hydraulic jacks 21, 21 and 31, 31. It is configured to be able to be driven by the driving force of the hydraulic pressure generating device 7 via a hydraulic circuit 74 .

As shown in FIG. 9, the hydraulic pressure generating device 7 is provided with a hydraulic pump 72 that can be driven by a motor 71. Each is connected so that it can be raised and lowered. In particular, the hydraulic jacks 21, 21 (both front compound jacks 2, 2) and 31, 31 (both rear jacks 3, 3) are controlled by known technology so that they can be raised and lowered simultaneously (synchronous raising and lowering). has been done. Note that a relief valve 75 is also provided.

In the hydraulic circuit having the hydraulic pressure generating device 7 shown in FIG. 9, specifically, the first switching valve 73A performs width widening control of both the slide members 22, 22 of both the front composite jacks 2, 2, The hydraulic jacks 21, 21 (both front compound jacks 2, 2) and 31, 31 (both rear compound jacks 3, 3) of both front compound jacks 2, 2 are controlled by the second switching valve 73B. It is configured so that it can be raised and lowered at the same time (synchronized raising and lowering).

[About the built-in type in tank container A regarding hydraulic pressure generator 7]
The hydraulic pressure generator 7 is provided in a part of the tank container A (front end side or rear end side, in the embodiment, on the left side of FIG. 8(A) as shown in FIG. 8(B)). The above-mentioned hydraulic circuit 74 is provided in both the hydraulic jacks 21, 21 of the both front side compound jacks 2, 2 and both the hydraulic jacks 31, 31 of both the rear side jacks 3, 3 from the hydraulic pressure generator 7. The piston part 21b and the piston part 31b are configured to be extendable and retractable.This built-in type makes it convenient to load and separate the tank container A onto the loading platform 6 of the truck B, and the work can be done more quickly. It is.

The operation of loading the tank container A onto the loading platform 6 of the truck B when the hydraulic pressure generator 7 is built-in (inside the tank container A) will be described [see FIG. 8(A)].
First, the slide members 22, 22 of both front compound jacks 2, 2 of the tank container A are manually pulled out and stopped, and the hydraulic pressure generator 7 in the tank container A is driven to drive both front compound jacks 2, 2. Both piston parts 21b, 21b of both hydraulic jacks 21, 21 of jacks 2, 2 and both piston parts 31b, 31b of both rear side jacks 3, 3 are extended simultaneously, and the lower ends of the respective legs are placed on the ground part G1, When a gap β is created in which the bottom surface of the tank container A is slightly higher than the top surface of the loading platform 6 of the truck B, only the tank container A is left standing by maintaining the extended state of each piston part.

Therefore, while maintaining the state shown in FIG. 13(A), the truck B is stopped by moving the truck B backward and positioning the loading platform 6 directly below the tank container A. Immediately thereafter, each piston portion of the tank container A is retracted to complete the loading of the tank container A onto the loading platform 6. This is a built-in tank container A type.

[Work situation inside hydrogen station D or power plant E] [See left side of Figure 7 (A)]
The separation of tank container A from truck B in a tank container A built-in type will be explained as a specific example. First, when a full tank container A1 is transported to a hydrogen station D or a power plant E by a truck B, the truck B is stopped at a predetermined position at this location, and the slide members 22 of the composite jacks 2, 2 on both front sides of the tank container A are , 22 manually to the outside and stop. Then, the hydraulic pressure generating device 7 in the tank container A is driven to drive both the piston parts 21b, 21b of both the hydraulic jacks 21, 21 of both the front composite jacks 2, 2, and the piston parts of both the rear jacks 3, 3. 31b and 31b are extended at the same time and the lower ends of each leg are placed on the ground part G1.

Furthermore, both piston parts 21b, 21b and both piston parts 31b, 31b of both rear side jacks 3, 3 are extended, and an appropriate gap β [approx. The loading platform 6 of the truck B is pulled out in a state where a difference of several cm to about 10 cm (see left side of FIG. 7(A)) is generated. Thereafter, the hydraulic pressure generator 7 is driven again to retract the piston portions of the full tank container A1 and place only the full tank container A1 directly on the ground surface G1 [see lower left side of FIG. 7(A)] ].

[Work situation inside hydrogen station D or power plant E] [See right side of Figure 7 (A)]
This time, in the same hydrogen station D or power plant E, an empty tank container A0 different from the full tank container A1 is placed directly, and first, both front composite jacks 2 of the empty tank container A0 are installed. , 2 is loaded onto the loading platform 6 of truck B by manually pulling out and stopping the slide members 22, 2 of 2, but the detailed explanation is the same as that explained in FIG. Although omitted, it is shown in the direction of the arrow on the right side of FIG. 7(A).

[Operating status inside hydrogen storage facility C] [See Figure 7 (B)]
After the empty tank container A0 is transported to the hydrogen storage facility C, it is separated, and this separation operation is shown in the left side view of FIG. 7(B), and the full tank container A1 is separated from the loading platform 6 of the truck B. This is the same as the operation [see left side of FIG. 6(A)], and the explanation thereof will be omitted.

Further, at the hydrogen storage location C, another full tank container A1 is loaded onto the loading platform 6 of the same truck B. This operation is shown in the right side view of FIG. 7(B) in the drawing, and is the same as the operation of loading the empty tank container A0 onto the loading platform 6 of truck B [see right side of FIG. 7(A)]. Explanation will be omitted.

[About the built-in type of hydraulic generator 7 in truck B] (See Figure 12)
The hydraulic pressure generating device 7 is provided in a part of the truck B (on the driver's cab 5 side or the rear end side of the loading platform 6, in the embodiment, at the rear of the driver's cab 5 in FIG. 12). The hydraulic configuration of the truck B built-in type will be explained (see Fig. 12). In particular, when the hydraulic pressure generator 7 is built-in to the truck B, couplings 76a, 76b, a hydraulic hose 74a in the hydraulic circuit 74, and a hose winding portion 74b are provided.

If the truck B is of the built-in type, as shown in FIG. This is possible using a known technique for the hose winding portion 74b that prevents entanglement, etc., and detailed drawings are omitted. With this built-in type, it takes a little time to load and separate the tank container A at the hydrogen storage facility C, hydrogen station D, and power plant E, but the cost of the tank container A can be particularly reduced.

Loading and separation of the tank container A built into the truck B of the hydraulic pressure generator 7 onto the loading platform 6 of the truck B will be described as a specific example.
[Operating status inside hydrogen station D or power plant E] [See Figure 11 (A)]
The work of loading and separating the tank container A onto the loading platform 6 of the truck B is the same as that of the built-in tank container A described above, but the difference is as shown in FIGS. 11(A) and (B). The hydraulic circuit is connected so that the loading platform 6 of the truck B and the tank container A are not separated.

To explain this point in detail, in FIG. 12, where the hydraulic pressure generating device 7 is built in the truck B, it is provided on the rear side of the driver's cab 5, and the hydraulic hose 74a as this hydraulic circuit is provided at an intermediate position of the loading platform 6. A hydraulic coupling 76b at the end and a length corresponding to the height of the loading platform 6 is provided via the hose winding portion 74b. The hydraulic coupling 76b can be hydraulically driven by physically coupling the hydraulic couplings 76a and 76b provided at the ends of the hydraulic circuit 74 of the four hydraulic jacks provided in the tank container A. It is configured.

That is, as shown in FIGS. 10 to 12, the difference is that the tank container A and the truck B must be operated while physically connected (by hydraulic coupling). In this way, by utilizing the built-in type of the hydraulic pressure generator 7 in the truck B, the hydrogen storage station C and the hydrogen station D or the power plant E are circulated appropriately by the truck B carrying the tank container A containing the hydrogen tank. As a transport system (FIGS. 1 to 3), in particular, the operation is almost the same as the tank container A built-in type (see FIG. 8), and the same as the liquefied hydrogen transport system as the top concept or superordinate concept described above. , and its explanation will be omitted.

[About the liquefied hydrogen transport system as the top concept of the present invention]
First, as shown in FIGS. 1 to 3, regardless of whether the inside of the hydrogen tank 4 is empty or full, liquefied hydrogen is stored in the tank container A with the hydrogen tank 4 at the hydrogen storage station C and the hydrogen station D. , the power plant E, another hydrogen supply station P, the current hydrogen station Dex, or the current power plant Eex. Specifically, the tank container A loaded on the loading platform 6 of truck B is transported to the desired hydrogen storage facility C, hydrogen station D or current hydrogen station Dex, power plant E, current power plant Eex, or other hydrogen supply station P. At any location, both the front composite jacks 2, 2 and both the rear jacks 3, 3 are retracted to separate the tank container A and place the tank container A directly on the ground G1.

The tank container A (empty) placed directly on either of the locations is loaded onto the truck B via both the front composite jacks 2, 2 and both the rear jacks 3, 3, and the hydrogen is stored in the truck B. The tank container A is transported to a location such as a hydrogen station C, a hydrogen station D, or a power plant E, where the tank container A is separated by the lifting and lowering action of both the front composite jacks 2, 2 and both the rear jacks 3, 3. This is a liquefied hydrogen transport system that is placed directly on the ground surface G1.

[About filling tank container A with liquefied hydrogen]
First, in the hydrogen storage facility C, the tank container A in which the hydrogen tank 4 is filled with liquefied hydrogen is called a full tank container A1, and the tank container A in which the liquefied hydrogen is emptied is called an empty tank container A0. I'll call it that. The terms ``full tank container A1'' and ``empty tank container A0'' are the same for the liquefied hydrogen transport systems of the following first embodiment and second embodiment, and further explanation will be omitted.
In addition, in the hydrogen tank 4, the term "empty" includes "empty" and "nearly empty and in a small amount".

[About the basic liquefied hydrogen transport system of the present invention]
First, the truck B loaded the full tank container A1 at the hydrogen storage facility A via both the front composite jacks 2, 2 and both the rear jacks 3, 3. hydrogen station D, power plant E, or other hydrogen supply station P (see Figure 1). Then, the full tank container A1 is placed on the ground surface G1 of the hydrogen station D, power plant E, or other hydrogen supply station P that has arrived under the lifting action of both the front compound jacks 2 and the rear jacks 3. The full tank container A1 is separated and placed directly on the ground portion G1 (see FIGS. 1 to 3).

Next, the empty tank container A0 that was already placed directly at this hydrogen station D, power plant E, or other hydrogen supply station P is loaded onto the loading platform 6 of the same truck B that was separated earlier, and in this state, the hydrogen The hydrogen storage facility C is transported to the hydrogen storage facility C, and the empty tank container A0 is separated and placed directly on the ground surface G1 of the hydrogen storage facility C. This is the liquefied hydrogen transport system.

In FIG. 2, it is a simplified diagram showing an example in which hydrogen is transported from a desired hydrogen storage station C to one desired hydrogen station D, which exists in many locations, in the Kanto area. A desired hydrogen storage station C in FIG. 2 is connected to a desired hydrogen station D by an arrow. Specifically, the hydrogen storage station C is connected to one hydrogen storage station C out of many in the Kanto area, and furthermore, the hydrogen station D is connected to one hydrogen station D out of many in the Kanto area. ing.

In the above explanation, the conveyance is carried out only once, but it varies depending on the conveyance distance. In fact, it may cycle several times a day. In this case, there is one hydrogen storage facility C, and the hydrogen stations D are generally different. In particular, even with one truck B, the work involves repeatedly transporting a full tank container A1 and an empty tank container A0, and even at the hydrogen storage station C, the hydrogen station D or the current hydrogen station At Dex and Power Plant E, liquefied hydrogen can be transported very efficiently because the work involves immediate separation and loading.

In the above explanation, hydrogen is circulated in an orderly manner between the hydrogen storage station C, hydrogen station D, or the current hydrogen station Dex, but in some cases, the same location may be transported multiple times, such as twice. However, this is also included in the concept of circulation. Specifically, the full tank container A1 was loaded and headed for the desired hydrogen station D, N (not shown in the drawing), but the tank was completely empty and went to hydrogen station D, marked M (not shown in the drawing). Even in the case where an empty tank container A0 from the original hydrogen station D is loaded and taken home, it is a circulation relationship, and various cases exist.

In the embodiment of this general concept, in the hydrogen storage station C, hydrogen station D, power plant E, and other hydrogen supply stations P, a full tank container A1 or an empty tank container A0 is directly placed on the ground surface G1 at that location. It can be placed. By directly placing the tank container A in this way, firstly, the center of gravity Mc is lowered, making it less likely to fall over, allowing for safe and secure storage. In particular, it can ensure stability without falling over even in the event of strong winds or earthquakes. Further, by directly placing the tank container A, the work can be done in one step.

Specifically, in this specification, the one step refers to loading liquefied hydrogen into the tank container A (from the liquefied hydrogen storage tank 91), which is a main component of the present invention, and loading the tank container A with liquefied hydrogen (from the liquefied hydrogen storage tank 91). This refers to the ability to eliminate chairs and step stools when discharging liquefied hydrogen to equipment and devices within the facilities of hydrogen station D, power plant E, and other hydrogen supply stations P. In particular, the present invention has the advantage of being able to perform such work in one step.

In a specific bird's-eye view as shown in FIG. 2, from one desired hydrogen storage station C (e.g., Yokohama), which exists in large numbers, to one desired hydrogen station D, which also exists in large numbers (e.g., somewhere in Tokyo). However, this is just one example, and the full tank container A1 may be transported from one hydrogen storage station C in Yokohama to a certain hydrogen station D in Saitama. Also in this case, the full tank container A1 can be placed directly.

From the hydrogen station D where the full tank container A1 is directly placed, the empty tank container A0 that has been placed directly is picked up and transported. Specifically, the empty tank container A0 is loaded onto the loading platform 6 of the truck B via both front composite jacks 2 and both rear side jacks 3, and transported to the hydrogen storage facility C. Then, the empty tank container A0 is filled with liquefied hydrogen and set up as a full tank container A1. FIG. 2 is an overview of a transportation overview that takes into account the Keihin Industrial Zone, Keiyo Industrial Zone, Kashima Waterfront Industrial Zone, etc. in Tokyo, Kanagawa Prefecture, and Chiba Prefecture, and can be adapted to any application.

[About 2-story and 3-story tank container A]
If necessary, the full tank container A1 is often installed on two floors at the same hydrogen station D [approximate center view of each of FIGS. 1, 3, 24, and 25, and FIG. 17 (A), (B)]. In order to ensure safety and reliability for two-story and three-story buildings, the tank container A has stacking auxiliary pieces at the four corners of the container body 1 on the top side of the tank container A, as shown in FIG. 16a is fixed by welding or the like.

As shown in FIG. 29, the stacking auxiliary piece 16a has a shape and configuration in which a plate piece is bent approximately 90 degrees when viewed from above, and is attached to the container body 1 on the lower surface side of the tank container A on the second floor side. The tank containers A on the second floor side can be stacked without any misalignment by having the four corners embrace the stacking auxiliary pieces 16a at the four corners of the container body 1 on the upper surface side of the tank container A on the first floor side. An example of such a two-story building is shown in FIG. Moreover, the case where the liquefied hydrogen conveying system of FIG. 1, FIG. 3, FIG. 24, and FIG. 25 is directly installed is also disclosed.

In addition, in the case of building a three-story building, the four corners of the container body 1 on the bottom side of the tank container A, which is on the third floor, will be on the second floor side, on the upper side of the tank container A, which is on the second floor. By holding the stacking auxiliary pieces 16a at the four corners of the container body 1 on the upper surface side of the tank containers A, the tank containers A on the third floor side can be stacked without any misalignment. The drawing for this three-story building will be omitted. Further, the stacking auxiliary piece 16a is shown in the main drawings of the tank container A (FIGS. 4, 5, 14 to 20, 26 to 29, etc.). Further, as shown in FIG. 26(D), the upper side of the stacking auxiliary piece 16a is formed with a slight opening, so that it is often formed as an improved stacking auxiliary piece 16b to facilitate stacking on the second floor or the like.

In this way, in order to build a 2-story, 3-story, or higher building, a reach stacker or the like used at a pier or the like is used for stacking and unloading. Directly placing the full tank container A1 at the hydrogen station D or the power plant E in this way also plays a role as an existing liquefied hydrogen storage tank. Furthermore, by building a two-story or three-story building (including temporary storage) where it is directly placed, it can be popularized in urban areas. In this way, there is an advantage in that it can provide equipment that can replace the expensive liquefied hydrogen storage tanks that exist in conventional or current hydrogen stations (current hydrogen stations).

[About other embodiments of tank container A]
As shown in FIG. 19, the rear jack 3, which slides a little, is basically the same as the front jack, and has a configuration in which the width of the jack 3 slides slightly (slightly expanded width). Specifically, a cylindrical fixing part 33 is fixed to the rear member 13d at the rear end of the container main body 1, and slide members 32, 32 are provided so as to be able to slide outward on both sides of the cylindrical fixing part 33. , hydraulic jacks 31, 31 are attached to the outer ends of the slide members 32, 32. The hydraulic jacks 31, 31 are composed of a cylinder portion 31a and a piston portion 31b that moves up and down. The widening of both front composite jacks 2, 2 in the width direction is hydraulically controlled, which has the advantage of being easy to operate.

As described above, although the width is small, ranging from about 10 cm to about 20 cm, by manually sliding it, contact with the loading platform 6 can be avoided and safe operation of truck B can be ensured. Even in this case, when the front composite jack 2 and the rear jack 3 are raised and lowered by the driving force of the hydraulic pressure generating device 7, the tank container A is safely loaded onto and separated from the loading platform 6 of the truck B in synchronization. Although the slide member 32 is a small slide, even if it is several tens of cm (about 30 to about 40 cm), it may be included in the category of small width.

Specifically, in the hydraulic circuit having the hydraulic pressure generating device 7 shown in FIG. Width widening control of both slide members 32, 32 of No. 3 is performed (synchronous width widening). In addition, the second switching valve 73B is used to control both the hydraulic jacks 21, 21 (both the front compound jacks 2, 2) and 31, 31 (both the rear compound jacks 3, 3) of the front compound jacks 2, 2. Each is configured so that it can be raised and lowered at the same time (synchronized raising and lowering). Although the slide member 32 is a small slide, even if it is several tens of cm (about 30 to about 40 cm), it may be included in the category of small width.

As shown in FIG. 20, the rear jack 3, which is reversible in plan view, has an arm portion 35 provided on a bearing portion 34 so as to be reversible by approximately 180 degrees (slightly widened). Specifically, the U-shaped frame 34b of the bearing portion 34 with the vertical shaft 34a is fixed to the rear members 13a, 13c at the rear end of the container body 1, respectively. The vertical shafts 34a, 34a of the respective bearing parts 34, 34 are reversibly provided on the base side cylindrical part 35a at one end base of the trapezoidal arm part 35, respectively. A tip cylindrical portion 35b is fixed to the other end (free end) of the arm portion 35.

Hydraulic jacks 31, 31 are attached to both the left and right end cylinder portions 35b, 35b. The hydraulic jack 31 includes a cylinder portion 31a and a piston portion 31b that moves up and down. When the arm portion 35 is closed [see FIG. 20(C)] or reversed and opened [see FIG. 20(A) and (B)], it is fixed in that position using known means. The explanation is omitted here. Further, as shown in FIG. 20, the arm portion 35 has a trapezoidal shape, but the arm portion 35 may be square, rectangular, or rod-like, and is not limited to the shape.

With the above configuration, when the tank container A is loaded onto the truck B, both the arm portions 35, 35 are closed and fixed as shown in FIG. 20(C). When separating the tank container A from the truck B and placing it directly on the site, both the arm parts 35, 35 are operated with spread. Even in this case, although the width is small, about 20 cm to about 30 cm, by manually reversing it, it is possible to avoid contact with the loading platform 6, ensuring safe operation of truck B, and also ensuring safe operation of the front composite jack 2. The tank container A is safely loaded onto and separated from the loading platform 6 of the truck B by synchronizing the raising and lowering of the rear jack 3 and the rear jack 3 with the driving force of the hydraulic pressure generating device 7.

[About small widening and large widening]
A widening structure is provided by slide members 32, 32 so that the cylindrical fixing portion 33 of both rear side jacks 3 shown in FIG. 19(C) attached to the rear side of the tank container A can be slid slightly outward on both sides. "Small width expansion", and the width expansion structure by opening and closing the arm portions 35, 35 shown in FIGS. 19(A), (B), and (C) is "Small width expansion". On the other hand, as shown in FIGS. 4 and 5, slide members are provided that can slide outward on both sides of the cylindrical fixing part 23 of both the front composite jacks 2 attached to the front side of the tank container A. The widened structure by 22, 22 is a "large widened" structure. As an example, "large widening" refers to widening of at least 4,50 cm or more and about 1 m, and "small widening" refers to widening of about 2,30 cm or less.

In the present invention, the front end of the tank container A may be provided with a front composite jack 2 that can be widened as a "large widening" and a rear jack 3 that is fixed or can be fixed or "slightly widened" (with a small widening length). The fundamental reason for these is to increase the degree of non-contact with the piston portions 21b, 21b of the front side composite jack 2 for the maneuverability of the truck B when loading the tank container A onto the loading platform 6 of the truck B. This is to ensure greater safety. On the other hand, the rear jack 3 is simply to ensure non-contact with the rear part of the loading platform 6, and can be fixed or widened slightly.

[About other embodiments of tank container A: intermediate reinforcement]
An intermediate position jack 8 is provided as necessary for reinforcing the tank container A (large type) shown in FIG. 22(A) at approximately the center in the longitudinal direction (X-axis direction). . Specifically, the intermediate position jacks 8, 8 are provided at substantially central positions in the longitudinal direction of the horizontally elongated members 11a, 11c of the container body 1 so as to be able to slightly slide outward (slightly widen). The intermediate position jack 8 is composed of a slide member 82, a cylindrical fixing part 83, a hydraulic jack 81, a cylinder part 81a, and a piston part 81b.

The cylindrical fixing part 83 of the intermediate position jack 8 is configured such that the cylindrical fixing part 83 is fixed to the reinforcing member 16 of the container body 1, and the slide member 82 can slide on the cylindrical fixing part 83, A hydraulic jack 81 is fixed to the tip of the slide member 82. The hydraulic jack 81 is fixedly constructed. The hydraulic jack 81 includes a cylinder portion 81a and a piston portion 81b.

In the container body 1 of the tank container A configured as described above, when the slides are closed, the intermediate position jacks 8, 8 on both sides are at least equal to or protrude from the width position of the track B. [See the dotted line in FIG. 22(C)]. Furthermore, as shown in FIG. 23 for reinforcing the tank container A, the horizontally elongated members 11a and 11d of the container body 1 may be formed to have a considerably large section modulus to constitute a reinforcing member.

The tank container A shown in FIG. 18 is a modification of the container body 1, and is of a type that does not have a rectangular parallelepiped shape. Specifically, the frame-shaped portion made up of the upper oblong members 11b, 11c, the front member 12b, and the rear member 13b has come off. Even with such a structure, the strength can be improved by increasing the number of reinforcing diagonal members 14 on both sides. This type of tank container A particularly has the advantage that the hydrogen tank 4 can be easily taken out and installed from the container body 1.

[About the liquefied hydrogen transport system of the first embodiment of the present invention]
As shown in FIGS. 1, 3, 7, and 8, this first embodiment is a basic liquefied hydrogen transport system in which the hydraulic pressure generator 7 is built into the tank container A. , it is convenient to load and separate the tank container A onto the loading platform 6 of the truck B, and although the price of the tank container A is a little higher, there is an advantage that the work can be done more quickly.

At the hydrogen storage station D, the truck B loaded with the full tank container A1 via both front composite jacks 2, 2 and both rear side jacks 3, 3 selects one desired hydrogen station D among the plurality. The hydrogen is transported towards the power plant E and other hydrogen supply stations P [see the transportation state indicated by the large arrow at the top of Figure 1], but in particular, the hydrogen is stored in the truck B carrying the full tank container A1 or the empty tank container A0. The transport system that appropriately circulates between the hydrogen station C, the hydrogen station D, the power plant E, or the other hydrogen supply station P is the same as the liquefied hydrogen transport system described above as a general concept, and its explanation will be omitted.

In particular, the loading and separation of the tank container A onto the loading platform 6 of the truck B when the hydraulic pressure generator 7 is built-in (inside the tank container A) will be described.
[Work situation inside a hydrogen station or power plant] [See Figure 7 (A)]
The full tank container A1 is placed on the ground G1 of the hydrogen station D or the power plant E, and the full tank container A1 is separated from the loading platform 6 by the lifting and lowering action of both front composite jacks 2, 2 and both rear jacks 3, 3. The full tank container A1 is placed directly on the ground portion G1 [left side in FIG. 7(A)]. Then, the empty tank container A0 that was already placed directly at the hydrogen station D or the power plant E is loaded onto the loading platform 6 of the truck B that was separated earlier [right side in FIG. 7(A)]. In this state, it is transported to hydrogen storage station D.

The empty tank container A0 is separated and placed directly on the ground portion G1 of the hydrogen storage facility C [left side in FIG. 7(B)]. Here, another full-tank container A1 is loaded onto the platform 6 of the truck B that was separated earlier [right side in FIG. 7B], and transported to the next desired hydrogen station D or power plant E. In this manner, the liquefied hydrogen transport system is capable of efficiently transporting liquefied hydrogen by loading and separating the full tank container A1 and the empty tank container A0 in one truck B.

[About the liquefied hydrogen transport system according to the second embodiment of the present invention]
This second embodiment is a type in which the hydraulic pressure generating device 7 is built into the truck B in the above-mentioned basic liquefied hydrogen transport system, and a system diagram of the system is shown in FIGS. 10 to 13. That's right. The basic system for separating and loading the full tank container A1 or the empty tank container A0 is the same as the liquefied hydrogen transport system of the first embodiment of the present invention shown in FIG. It can be done cheaply.

In this second embodiment, the hydraulic pressure generating device 7 is built into the truck B, and the tank container A can be loaded onto and separated from the loading platform 6 of the truck B. Easy to implement with less burden. Generally, the operator of hydrogen station D needs at least three containers: a full tank container A1, an empty tank container A0, and a tank container A in use. This lowers the hurdles for constructing Hydrogen Station D. In particular, the transportation system in which truck B carrying tank container A containing hydrogen tank 4 circulates appropriately between hydrogen storage station C and hydrogen station D or power plant E is the same as the liquefied hydrogen transportation system as the general concept described above. , and its explanation will be omitted.

[Another liquefied hydrogen transport system of the present invention]
[About transportation from pier F to hydrogen storage facility C, hydrogen station D, power station E, or other hydrogen supply station P]
In recent years, liquefied hydrogen has been imported from foreign countries, with large ships loaded with large numbers of A9 international containers berthed at each pier F. The international container A9 is available in two types: a 20-foot type (normal type) and a 40-foot type (large size, approximately 12 m long). International container A9 (40 feet) and international container A9 (20 feet) filled with liquefied hydrogen are transported from each of the above-mentioned piers F to hydrogen storage facility C, hydrogen station D, and power generation via a large crane or reach stacker. It is being transported to hydrogen supply station E and another hydrogen supply station P.

[Regarding implementation status 1 of the present invention by transfer at pier F]
As shown in FIG. 26(B), as an example, the liquefied hydrogen in the 20-foot international container A9 is "pressurized and dispensed" into the hydrogen tank 4 in the tank container A, which is a component of the present invention, using a known technique. The tank container A becomes a full-tank container A1 through the transfer, and the truck B that can load and separate the full-tank container A1 can be used accordingly.

In this way, liquefied hydrogen can be directly transported from each pier F to the desired hydrogen storage facility C, hydrogen station D, power plant E, other hydrogen supply station P, current hydrogen station Dex, or current power plant Eex. can do. As described above, by using the "pressurized discharge" method from international container A9 at each wharf F, this full tank container A is directly delivered from each wharf F to the desired hydrogen storage facility C, hydrogen station D, power station E, etc. The liquefied hydrogen can be directly transported to other hydrogen supply stations P, the current hydrogen station Dex, or the current power plant Eex, and the unit price of liquefied hydrogen can be provided at a lower price, which has the great advantage of contributing to a hydrogen gas society.

[Regarding implementation status 2 of the present invention by transfer at Wharf F]
As shown in FIG. 28, as an example, the liquefied hydrogen in the 40-foot type international container A9 is transferred into the hydrogen tank 4 in the tank container A, which is a component of the present invention, by a "pressurized discharge" method. Through the transfer, the tank container A becomes a full tank container A1, and accordingly, a truck B capable of loading and separating the full tank container A1 can be used. In particular, even when using the "pressurized discharge" method, the work of connecting the discharge port of the international container A9 and the loading port of the tank container A, which is a component of the present invention, can be done in one step.

In this way, liquefied hydrogen can be directly transported from each pier F to the desired hydrogen storage facility C, hydrogen station D, power station E, other hydrogen supply station P, current hydrogen station Dex, or current power station Eex. can do. In this case, the full tank container A1 can be filled with about 40 kl, and can be filled several times to seven times compared to about 270 kl to about 300 kl of the general type of liquefied hydrogen storage tank 91 of the current hydrogen station Dex. This is a value that allows it to be filled to a certain extent, and has the advantage that the full tank container A1, which can be placed directly, can also serve as the conventional liquefied hydrogen storage tank 91.

It may also be a "tank container for transporting liquefied hydrogen" as shown below.
"A tank container in which a hydrogen tank that can be filled with liquefied hydrogen is provided in a rectangular parallelepiped frame-shaped container body, the tank container as a whole is configured to be loaded on a loading platform fixed to the rear of a truck, and the tank container is configured to be loaded on a loading platform fixed to the rear of a truck, Loading and separation from the tank container can be carried out only by hydraulic drive of jacks attached to the front and rear of the container body, and the separation is carried out when the tank container loaded on the loading platform is lifted onto the ground using only the front and rear jacks. The tank container A, which is placed directly on the ground, can be stacked using only the front and rear jacks, and the front end of the container body Two front composite jacks are equipped with sliding members that expand in the direction of the container by hydraulic drive and also expand and contract up and down, and are placed on both sides of the container body in the width direction at the rear end of the container body so that they do not expand in the width direction. Each of the two rear side jacks, which are stationary and expand and contract only up and down, can be hydraulically driven, and both the front compound jacks and the rear side jacks, which are closed, are fixed at least at both widthwise ends of the cab of the truck. A tank container for transporting liquefied hydrogen, characterized by being set within a range that is equal to or does not exceed both ends of the range.

Furthermore, at each domestic wharf, the following ``liquefied hydrogen transportation system'' may be installed.
``A tank container having a rectangular parallelepiped frame-shaped container body provided with a hydrogen tank that can be filled with liquefied hydrogen, and a truck fixed to the rear of the driver's cab as a loading platform on which the entire tank container is loaded, Loading and separation of the tank container and the loading platform can be performed only by hydraulic drive of jacks installed at the front and rear of the tank container, and the separation can be performed only when the tank container loaded on the loading platform is moved only by the front and rear jacks. The tank container is placed directly on the ground, and the tank container is stacked on top of the tank container placed directly on the ground using only the front and rear jacks. Two front compound jacks are provided with slide members that expand outward in the direction of the container by hydraulic drive and also expand and contract vertically; Each of the two rear side jacks, which do not open but remain stationary and extend and retract only up and down, can be hydraulically driven, and both the front side compound jacks and both the rear side jacks, which are closed, are at least the width of the cab of the truck. The liquefied hydrogen in the international container is transferred into the tank container at each domestic wharf location using a pressurized discharge method using known technology. While loading the tank container filled in this way onto the loading platform of the truck, it is transported from each wharf to the desired hydrogen storage facility, hydrogen station, power plant, other hydrogen supply station, current hydrogen station, or current power generation station. The liquefied hydrogen is transported to the desired location, the tank container is directly placed from the loading platform immediately after arriving at the desired location, and the liquefied hydrogen can be discharged in one step immediately after the direct placement. A liquefied hydrogen transport system featuring

In addition, if automatic driving or AI driving becomes popular in the future, there is a high possibility that the width of the front compound jack 2, which can be widened, will be reduced by a small amount. When malfunctions are considered, the width cannot be reduced to zero. In addition, at present, even if the front end and the rear end of the tank container A are also provided with a rear jack 3 having the same configuration as the front composite jack 2 that can widen the width, it is possible to differentiate the front and rear of the tank container A and widen the rear side by a small amount. Even if the width of the rear jack 3 is slightly increased, the width of the rear jack 3 is considered to be small and is included within the technical scope of the present invention.

In the drawings of the present invention, the tank container A is originally provided with all rectangular parallelepiped container bodies 1; In some parts and all of FIGS. 2, 7, and 11, the container body 1 is omitted to make transportation of the hydrogen tank 4 easier to see.

As a liquefied hydrogen transportation system, liquefied hydrogen is transported and circulated between the hydrogen storage facility C, hydrogen station D, power plant E, other hydrogen supply station P, the current hydrogen station Dex, or the current power plant Eex. This is a system for discharging and loading hydrogen between the hydrogen storage facility C and hydrogen station D, between the hydrogen storage facility C and the power plant E, and between the hydrogen storage facility C and other hydrogen supply stations P. A dedicated transport system may be constructed between the hydrogen storage facility C and the current hydrogen station Dex, or between the hydrogen storage facility C and the current power station Eex.

In the present invention as described above, the main configuration is that the tank container A can be transported while being loaded on the platform 6 fixed to the rear of the cab 5 of the truck B, and the tank container A and the platform 6 can be loaded. - Separation can be performed only by hydraulic drive of the jacks (both front composite jacks 2, 2 and both rear side jacks 3, 3), and the separation can be performed by directly placing the tank container A from the loading platform 6 using only the jacks. , and the technical feature is that loading or discharging of liquefied hydrogen can be carried out in one step immediately after the direct placement, and the tank container A can be stacked on the loading platform 6 from the direct placement using only the jack. It is a composition. Note that both of the front composite jacks 2 are provided with slide members 22 that expand outward in the width direction of the tank container A by hydraulic drive.

The structure of the jacks attached to the front and rear of the tank container A as a liquefied hydrogen conveyance system was different at the front and rear, but the structure of the front jack, that is, the front end of the container body 1 in the width direction. The same structure as the two front composite jacks 2, 2 with slide members 22, 22 that expand outward and expand and contract vertically may be provided at the rear end of the container body 1. . In this case, although the component is relatively expensive, the same effect as the present invention can be achieved.

In particular, the present invention is a transport system for liquefied hydrogen, but it can also be widely used for transporting various liquefied gases (LP gas, etc.). In other words, it can be used as an LP gas transport system. Furthermore, the tank container A of the present invention has a safe and non-polluting tank structure that is tailored to the characteristics of the cargo such as water, alcohol, benzene, and hydrochloric acid. This is a system that enables the storage, transportation, and conveyance of powder and granular materials. In this way, the industrial applicability is extremely high.

A...tank container, A1...full tank container, A0...empty tank container,
1...Container body, 22...Slide member, 2...Front side composite jack,
3... Rear side jack, 4... Hydrogen tank, B... Truck, 5... Cab, 6... Loading platform,
C...Hydrogen storage facility, D...Hydrogen station, E...Power plant, P...Other hydrogen supply stations,
Dex...Current hydrogen station, Eex...Current power plant, 7...Hydraulic pressure generator,
91...Liquefied hydrogen storage tank, A9...International tank container, F...Wharf.

Claims (4)

A tank container with a rectangular parallelepiped frame-shaped container body equipped with a vertical hydrogen tank that can be filled with liquefied hydrogen, and a vehicle in which the entire tank container is fixed to the rear of the driver's cab as a loading platform to be loaded and unloaded using a jack. A liquefied hydrogen transportation system using trucks as only
The tank container and the loading platform can be loaded using only the jacks at the front and rear of the tank container, which is placed directly on a strong ground surface, and the unloading can also be carried out by mounting the tank container at the front and rear of the tank container. The loading and unloading can be carried out only by the hydraulic drive of the jack, and the loading/unloading structure includes a slide member that linearly expands outward in the width direction at the front end of the container body by hydraulic drive. The container body is provided with two front composite jacks that extend and contract vertically as well as two rear jacks that are disposed on both sides in the width direction at the rear end of the container body and that extend and contract only vertically, each of which can be hydraulically driven. Then,
A lower loading/discharging port for the liquefied hydrogen is provided at the rear lower side of the vertical hydrogen tank, and the liquefied hydrogen can be loaded and discharged from the rear side of the tank container without being obstructed by the jack. It is configured so that
In the truck equipped with the tank container that can transport the liquefied hydrogen between any one of a plurality of piers, hydrogen storage facilities, hydrogen stations, or power plants in Japan where the liquefied hydrogen is imported, after arriving at the desired location, the truck is loaded with the jack. The tank container is configured such that the liquefied hydrogen can be immediately loaded or discharged into the tank container which has been unloaded and placed directly, and the tank container can be stored on the ground portion with the bottom surface of the tank container placed directly. Then,
A liquefied hydrogen transport system characterized in that the hydrogen station is configured without a liquefied hydrogen storage tank. 3. The liquefied hydrogen transport system according to claim 1, wherein the hydraulic pressure generators for both the front composite jacks and the rear jacks are provided within the tank container. The liquefied hydrogen transport system according to claim 1 or 2, wherein the hydraulic pressure generators for both the front composite jacks and the rear jacks are provided in the truck, and a hydraulic circuit between the truck and the tank container is coupled. 1. A liquefied hydrogen conveying system characterized in that said front compound jacks and both rear side jacks of said tank container can be driven only when said tank container is in use. In the liquefied hydrogen transport system according to claim 1 or 2, the tank containers can be stacked on the second or third floor or more via stacking auxiliary pieces at the four corners on the tank container placed directly at a desired location. A liquefied hydrogen transport system characterized by:

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