Profound hypothermia liquid transportation container and vehicle

Abstract

The invention provides a profound hypothermia liquid transportation container and a vehicle. The transportation container comprises an outer tank body and an inner tank body arranged in the outer tank body, and an outer supporting structure is arranged on the outer side of a cylinder body of the outer tank body; the device further comprises a static supporting structure and a dynamic supporting structure, the static supporting structure is arranged in an annular space between the inner tank body and the outer tank body, the first end of the static supporting structure is fixedly connected with the inner wall of the outer tank body, and the second end of the static supporting structure is connected with the outer wall of the barrel body of the inner tank body in a disengagement-contact switching mode. The first end of the dynamic supporting structure is fixedly connected with the outer wall of the barrel of the inner tank body, and the second end of the dynamic supporting structure penetrates through the barrel of the outer tank body and is telescopically connected with the barrel of the outer tank body in a sealed mode. During transportation, the second end of the dynamic supporting structure shrinks in the direction close to the annular space, and the second end of the static supporting structure is separated from the outer wall of the barrel body of the inner tank body; during placement, the second end of the dynamic supporting structure extends in the direction away from the annular space, and the second end of the static supporting structure makes contact with the outer wall of the barrel of the inner tank body.

Description

Technical Field

[0001] The present invention belongs to the technical field of cryogenic pressure vessels, and in particular, relates to a deep cryogenic liquid transport container and a vehicle. Background Art

[0002] The application of liquid hydrogen in the civilian field, especially its promotion in the transportation field, is considered to have broad prospects. For example, heavy-duty transport trucks, airplanes, ships and other means of transportation can use liquid hydrogen power to reduce carbon emissions during operation and achieve a longer driving range.

[0003] Many countries and regions have conducted research on on-board liquid hydrogen storage systems to varying degrees, and have developed dozens of liquid hydrogen-powered vehicle prototypes, including passenger cars, buses and trucks. At the same time, research on liquid hydrogen in the field of aviation power is also being stepped up, including liquid hydrogen-powered engines, liquid hydrogen efficient storage equipment, liquid hydrogen delivery systems and test equipment.

[0004] Therefore, it is necessary to study how transport containers can simultaneously meet the strength requirements of liquid hydrogen transportation and the requirements of low heat leakage loss during parking.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome at least some of the shortcomings of the prior art and provide a cryogenic liquid transport container. By arranging a static support structure and a dynamic support structure between the inner tank body and the outer tank body of the transport container, when the transport container is in a transport state, the second end of the dynamic support structure shrinks in a direction close to the annular space between the inner tank body and the outer tank body under the support of the support platform until the second end of the static support structure is out of contact with the outer wall of the cylinder of the inner tank body. When the transport container is in a placed state, the second end of the dynamic support structure is out of contact with the support platform and extends in a direction away from the annular space between the inner tank body and the outer tank body until the second end of the static support structure is in contact with the outer wall of the cylinder of the inner tank body. In this way, the corresponding support structure can be used to bear the weight and load of the inner tank body in different states, thereby achieving the purpose of simultaneously meeting the strength requirements of liquid hydrogen transportation and the requirements of low heat leakage loss during parking.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A cryogenic liquid transport container, comprising an outer tank body and an inner tank body arranged in the outer tank body, wherein an outer supporting structure is arranged outside the cylinder of the outer tank body;

[0009] Also includes:

[0010] A static support structure is disposed in the annular space between the inner tank body and the outer tank body, wherein a first end of the static support structure is fixedly connected to the inner wall of the outer tank body, and a second end of the static support structure is switchably connected to the outer wall of the cylinder of the inner tank body in a disengageable and contactable manner;

[0011] A dynamic support structure, wherein a first end of the dynamic support structure is fixedly connected to the outer wall of the cylinder of the inner tank body, and a second end of the dynamic support structure passes through the cylinder of the outer tank body and is sealed and telescopically connected thereto;

[0012] Wherein, when the transport container is in a transport state, the second end of the dynamic support structure shrinks toward the annular space between the inner tank body and the outer tank body under the support of the support platform until the second end of the static support structure is out of contact with the outer wall of the cylinder of the inner tank body;

[0013] When the transport container is in a placed state, the second end of the dynamic support structure separates from the support platform and extends in a direction away from the annular space between the inner tank body and the outer tank body until the second end of the static support structure contacts the outer wall of the cylinder of the inner tank body.

[0014] In some embodiments, the static support structure includes a hanger rod and a hanger lug;

[0015] Among them, the first end of the suspension rod is fixedly connected to the inner wall of the outer tank body, and the second end is provided with a slot extending in the vertical direction. The lifting ear is fixedly connected to the outer wall of the cylinder of the inner tank body, and the slot and the lifting ear can be switched between disengagement and contact.

[0016] In some embodiments, the width of the slot in the axial direction of the transport container is greater than the width of the lifting ear in the axial direction of the transport container;

[0017] The length of the slot in the vertical direction matches the telescopic length of the second end of the dynamic support structure.

[0018] In some embodiments, the suspension rod is made of carbon fiber composite material;

[0019] Wherein, the suspension rod is fixedly connected to the inner wall of the outer tank body through a top support.

[0020] In some embodiments, in the vertical direction, the first end of the suspension rod is higher than the second end of the suspension rod, and the angle between the suspension rod and the vertical direction is in the range of 40° to 50°.

[0021] In some embodiments, the outer tank body is provided with leg holes on the cylinder;

[0022] Wherein, the dynamic support structure comprises inner tank legs and elastic supports, wherein the elastic supports are located outside the outer tank and are thermally adiabatically sealed and connected to the legs through holes;

[0023] The first end of the inner tank body leg is fixedly connected to the outer wall of the cylinder of the inner tank body, and the second end of the inner tank body leg contracts and stretches in the direction of approaching and moving away from the annular space between the inner tank body and the outer tank body through the leg perforation.

[0024] In some embodiments, the elastic support adopts a bellows structure.

[0025] In some embodiments, the inner tank legs are made of epoxy fiberglass.

[0026] In some embodiments, an injection pipe and / or an outlet pipe of a cryogenic liquid is connected between the outer tank body and the inner tank body;

[0027] Wherein, the injection pipe and / or the outlet pipe adopts a flexible connecting pipe.

[0028] The present invention also provides a vehicle, comprising a support platform and the cryogenic liquid transport container described above.

[0029] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0030] 1. The cryogenic liquid transport container provided by the present invention is provided with a static support structure and a dynamic support structure between the inner tank body and the outer tank body of the transport container. When the transport container is in a transport state, the second end of the dynamic support structure contracts toward the annular space between the inner tank body and the outer tank body under the support of the support platform until the second end of the static support structure is out of contact with the outer wall of the cylinder of the inner tank body. When the transport container is in a placed state, the second end of the dynamic support structure is out of contact with the support platform and extends toward the annular space between the inner tank body and the outer tank body until the second end of the static support structure is in contact with the outer wall of the cylinder of the inner tank body. In this way, the corresponding support structure can be used in different states to bear the weight and load of the inner tank body, thereby achieving the purpose of simultaneously meeting the strength requirements for cryogenic liquid transportation and the requirements for low heat leakage loss when parked.

[0031] 2. The cryogenic liquid transport container provided by the present invention can adapt to the axial thermal expansion and contraction of the inner tank body caused by temperature changes by making the width of the slot in the axial direction of the transport container larger than the width of the lifting ear in the axial direction of the transport container, thereby ensuring that the second end of the static support structure can be switchedly connected to the outer wall of the cylinder of the inner tank body in a detachable and contactable manner.

[0032] 3. The cryogenic liquid transport container provided by the present invention uses a suspension rod made of a carbon fiber composite material, thereby reducing heat conduction and heat leakage loss while ensuring strength.

[0033] 4. The cryogenic liquid transport container provided by the present invention adopts a bellows structure for the elastic support, so that after leaving the supporting platform, the elastic support can rebound in the direction away from the inner tank body support legs, thereby separating the two, so that external heat cannot be transferred to the inner tank body through the elastic support, thereby reducing heat leakage loss.

[0034] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0036] Figure 1 is a partial structural schematic diagram of a cryogenic liquid transport container provided according to an exemplary embodiment of the present invention;

[0037] Figure 2 yes Figure 1 A partial enlarged view of the structure in the middle.

[0038] In the figure: 100, transport container;

[0039] 110. Outer tank body; 111. Leg perforation; 120. Inner tank body; 130. Vacuum multi-layer insulation layer; 140. Outer support structure; 150. Static support structure; 151. Hanging rod; 152. Lifting ear; 153. Slot; 160. Dynamic support structure; 161. Inner tank body leg; 162. Elastic support; 170. Injection pipe; 180. Export pipe.

[0040] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0042] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] As introduced in the background technology of this application, it is very necessary to study how transport containers can simultaneously meet the strength requirements of cryogenic liquid transportation and the requirements of low heat leakage loss when parked for the application of cryogenic liquid in the civilian field. Based on this, the present invention provides a cryogenic liquid transport container, including an outer tank body and an inner tank body arranged in the outer tank body, an outer support structure is arranged on the outer side of the cylinder of the outer tank body, and the cryogenic liquid transport container also includes a static support structure and a dynamic support structure. The static support structure is arranged in the annular space between the inner tank body and the outer tank body, the first end of the static support structure is fixedly connected to the inner wall of the outer tank body, and the second end is switchably connected to the outer wall of the cylinder of the inner tank body in a disengageable-contacting manner, the first end of the dynamic support structure is fixedly connected to the outer wall of the cylinder of the inner tank body, and the second end passes through the cylinder of the outer tank body and is sealed and telescopically connected thereto.

[0045] When the transport container is in a transport state, the second end of the dynamic support structure contracts toward the annular space between the inner tank body and the outer tank body under the support of the support platform, until the bottom of the second end of the dynamic support structure is on the same horizontal plane as the bottom of the outer support structure, and the second end of the static support structure is out of contact with the outer wall of the cylinder of the inner tank body; when the transport container is in a placement state, the second end of the dynamic support structure is out of contact with the support platform and extends toward the annular space between the inner tank body and the outer tank body, until the second end of the static support structure is in contact with the outer wall of the cylinder of the inner tank body.

[0046] Through the above scheme, corresponding supporting structures can be used in different states to bear the weight and load of the inner tank body, thereby achieving the purpose of simultaneously meeting the strength requirements for deep-cryogenic liquid transportation and the requirements for low heat leakage loss during parking.

[0047] The cryogenic liquid mentioned above is, for example, liquid helium, liquid hydrogen, liquid nitrogen, etc.

[0048] In some embodiments, the cryogenic liquid transport container is a horizontal container, and the cryogenic liquid is liquid hydrogen, which can be used to provide hydrogen fuel for hydrogen energy vehicles. It can be understood that under such working conditions, the capacity of the cryogenic liquid transport container is relatively small.

[0049] In some other embodiments, the cryogenic liquid transport container is a vehicle-mounted transport tank for transporting cryogenic liquid. It can be understood that under such working conditions, the capacity of the cryogenic liquid transport container is relatively large.

[0050] The preferred technical solution of the cryogenic liquid transport container provided by the present invention will be described in detail below with reference to the accompanying drawings, taking the cryogenic liquid as liquid hydrogen as an example.

[0051] Figure 1 is a partial structural schematic diagram of a cryogenic liquid transport container 100 provided according to an exemplary embodiment of the present invention. Figure 2 yes Figure 1 It should be noted that the shapes, proportions, sizes and orientations of the components in the figure are only for illustration purposes and are used to help understand the present invention. They are not intended to specifically limit the shapes, proportions, sizes and orientations of the components of the present invention. After understanding the teachings of the inventor, those skilled in the art can implement the invention based on existing technical knowledge and experience.

[0052] like Figure 1 and Figure 2 As shown, the cryogenic liquid transport container 100 includes an outer tank body 110 and an inner tank body 120 disposed in the outer tank body 110. A vacuum insulation cavity is formed between the outer tank body 110 and the inner tank body 120, and multiple layers of insulation materials are disposed in the vacuum insulation cavity to form a vacuum multi-layer insulation layer 130 sandwiched in the annular space between the outer tank body 110 and the inner tank body 120. An external support structure 140 is disposed outside the cylinder of the outer tank body 110 to bear the weight of the inner and outer tank bodies 110 and the cryogenic liquid.

[0053] As an example, the outer support structure 140 is a leg-shaped structure, and four outer support structures 140 are arranged at the bottom of the outer tank body 110 to form a stable structure with four legs supporting.

[0054] Refer again Figure 1 The cryogenic liquid transport container 100 also includes a static support structure 150 for supporting the weight of the inner tank body 120 and the cryogenic liquid therein when the hydrogen energy vehicle is in a parked state, and a dynamic support structure 160 for supporting the weight and impact force of the inner tank body 120 and the cryogenic liquid therein when the hydrogen energy vehicle is in a driving state.

[0055] Among them, the static support structure 150 is arranged in the annular space between the inner tank body 120 and the outer tank body 110, the first end of the static support structure 150 is fixedly connected to the inner wall of the outer tank body 110, and the second end is switchably connected to the outer wall of the cylinder of the inner tank body 120 in a detachable and contactable manner, and the first end of the dynamic support structure 160 is fixedly connected to the outer wall of the cylinder of the inner tank body 120, and the second end passes through the cylinder of the outer tank body 110 and is sealed and telescopically connected thereto.

[0056] When the hydrogen energy vehicle is in the driving state, the cryogenic liquid transport container 100 is in the transport state, and the second end of the dynamic support structure 160 shrinks toward the annular space between the inner tank body 120 and the outer tank body 110 under the support of the support platform, until the bottom of the second end of the dynamic support structure 160 is substantially on the same horizontal plane as the bottom of the outer support structure 140, and the second end of the static support structure 150 is out of contact with the outer wall of the cylinder of the inner tank body 120. At this time, since the second end of the static support structure 150 is out of contact with the outer wall of the cylinder of the inner tank body 120, the weight of the inner tank body 120 and the cryogenic liquid therein and the impact force generated by the flow of the liquid are all borne by the dynamic support structure 160, and the second end of the dynamic support structure 160 is supported on the support platform outside the cryogenic liquid transport container 100, which makes the weight of the inner tank body 120 and the cryogenic liquid therein and the impact force generated by the flow of the liquid receive relatively stable support, which can meet the strength requirements during transportation.

[0057] When the hydrogen energy vehicle is in a parking state, the cryogenic liquid transport container 100 is in a placed state, and the second end of the dynamic support structure 160 is separated from the support platform and extends in the direction away from the annular space between the inner tank body 120 and the outer tank body 110, until the second end of the static support structure 150 contacts the outer wall of the cylinder of the inner tank body 120. At this time, since the second end of the dynamic support structure 160 is separated from the support platform, the weight of the inner tank body 120 and the cryogenic liquid therein are borne by the outer support structure 140 and the static support structure 150, and the static support structure 150 is entirely located in the annular space between the inner tank body 120 and the outer tank body 110, and is not in contact with the external environment, which greatly reduces the heat leakage transmitted from the outer tank body 110 to the inner tank body 120, reduces the heat loss, and can meet the requirements of low leakage loss when parking.

[0058] In addition, the weight of the inner tank 120 and the cryogenic liquid therein is jointly borne by the outer support structure 140 and the static support structure 150, which can reduce the design pressure of the static support structure 150. In other words, the above scheme can reduce the support strength of the static support structure 150, adjust the stress distribution of the cryogenic liquid transport container 100 as a whole in the placed state, and achieve the effect of optimizing the entire structure.

[0059] In some embodiments, the above-mentioned support platform is movably connected to the hydrogen energy vehicle, and is placed on the bottom of the outer support structure 140 before the cryogenic liquid transport container 100 is in the transport state, so that the second end of the dynamic support structure 160 shrinks toward the direction of the annular space between the inner tank body 120 and the outer tank body 110 until the bottom of the second end of the dynamic support structure 160 is on the same horizontal plane as the bottom of the outer support structure 140.

[0060] When the cryogenic liquid transport container 100 is in a placed state, the support platform is taken out from the bottom of the cryogenic liquid transport container 100. It should be noted here that the bottom of the outer support structure 140 always conflicts with the bottom of the placement cabin of the hydrogen energy vehicle for placing the cryogenic liquid transport container 100. After the support platform is taken out from the bottom of the cryogenic liquid transport container 100, there is an extension space between the bottom of the second end of the dynamic support structure 160 and the bottom of the placement cabin, which allows the second end of the dynamic support structure 160 to extend in a direction away from the annular space between the inner tank body 120 and the outer tank body 110.

[0061] As an example, the bottom of the placement cabin is a "concave" structure, that is, the bottom of the placement cabin has a protruding part and a concave part. Among them, the bottoms of the four external support structures 140 are respectively abutted against the protruding parts at both ends in a group of two, and the bottom of the second end of the dynamic support structure 160 is opposite to the concave part in the middle, and the above-mentioned support platform can be placed in the concave part.

[0062] In some other embodiments, the support platform may also be connected to a driving structure for driving the support platform to rise and fall. Optionally, the driving structure adopts a screw driving structure, a hydraulic driving structure, etc. The driving structure may be arranged below the placement cabin to drive the support platform to rise and fall, so that the support platform can switch between supporting the second end of the dynamic support structure 160 and the second end of the dynamic support structure 160 being detached from the second end.

[0063] In some embodiments, Figure 2As shown, the static support structure 150 includes a suspension rod 151 and a lifting ear 152, wherein the first end of the suspension rod 151 is fixedly connected to the inner wall of the outer tank body 110, the second end of the suspension rod 151 is provided with a slot 153 extending in the vertical direction, the lifting ear 152 is fixedly connected to the outer wall of the cylinder of the inner tank body 120, and the slot 153 and the lifting ear 152 can be switched in a disengageable and contactable manner.

[0064] As an example, the static support structure 150 has four groups of suspension rods 151 and suspension ears 152, which are distributed at relatively large positions in the annular space between the inner tank body 120 and the outer tank body 110. Optionally, in the vertical direction, the first end of the suspension rod 151 is higher than the second end of the suspension rod 151, and the angle between the suspension rod 151 and the vertical direction ranges from 40° to 50°. Preferably, the angle between the suspension rod 151 and the vertical direction is 45°.

[0065] In the above solution, the suspension rod 151 is a slender rod-shaped structure with a small cross-sectional area, and the overall heat introduced per unit time is small, thereby reducing heat leakage on the basis of sufficient support.

[0066] Specifically, the first end of the suspension rod 151 is fixedly connected to the end cap of the outer tank body 110, or is fixedly connected to the supporting cylinder forming a common vacuum chamber with the outer tank body 110, and the second end of the suspension rod 151 is provided with an oblong hole-shaped slot 153 extending in the vertical direction. One end of the lifting ear 152 is fixedly connected to the outer wall of the inner tank body 120, and the other end extends in a substantially horizontal direction.

[0067] When the second end of the dynamic support structure 160 shrinks toward the annular space between the inner tank body 120 and the outer tank body 110 under the support of the support platform, the lug 152 fixed on the inner tank body 120 also moves upward. Since the suspension rod 151 is fixed on the outer tank body 110, the lug 152 can be separated from the contact with the slot 153 during the upward movement, so that there is no mutual force between the suspension rod 151 and the inner tank body 120, and the suspension rod 151 does not bear the transportation impact load force, so that the gravity and load of the inner tank body 120 and the liquid therein are all applied to the dynamic support structure 160.

[0068] When the second end of the dynamic support structure 160 is separated from the support platform and extends in the direction away from the annular space between the inner tank body 120 and the outer tank body 110, the lifting lug 152 fixed on the inner tank body 120 also moves downward. As mentioned above, since the suspension rod 151 is fixed on the outer tank body 110, the lifting lug 152 can abut against the upper wall surface of the slot 153 during the downward movement, so that the suspension rod 151 can lift the inner tank body 120 and bear the weight of the inner tank body 120 and the liquid inside. At the same time, the suspension rod 151 transfers the force to the outer tank body 110 and the outer support structure 140, so that the outer support structure 140 simultaneously bears the weight of the inner and outer tank bodies 110 and transfers it to the bottom of the placement cabin.

[0069] In some embodiments, the width of the slot 153 in the axial direction of the transport container 100 is greater than the width of the ear 152 in the axial direction of the transport container 100; the length of the slot 153 in the vertical direction matches the telescopic length of the second end of the dynamic support structure 160.

[0070] The above solution can adapt to the thermal expansion and contraction of the inner tank body 120 in the axial direction caused by temperature changes, ensuring that the second end of the static support structure 150 can be switchably connected to the outer wall of the cylinder of the inner tank body 120 in a detachable and contactable manner.

[0071] As an example, the suspension rod 151 is made of carbon fiber composite material, wherein the suspension rod 151 is fixedly connected to the inner wall of the outer tank body 110 through a top support.

[0072] It should be explained here that the carbon fiber composite material is a high-strength fiber composite material, which has the characteristics of high strength and low thermal conductivity. As mentioned above, the suspension rod 151 only lifts the inner tank body 120 in the placed state and does not bear the impact load of transportation. Therefore, compared with the supporting structure using steel structure in the prior art, the present invention can reduce heat leakage on the basis of having sufficient supporting capacity.

[0073] In addition, reinforcing plates may be added at the position where the lifting lug 152 is connected on the inner tank body 120 and at the position where the suspension rod 151 is connected on the outer tank body 110 to increase the local strength of the position.

[0074] In some embodiments, again referring to Figure 2, a leg through-hole 111 is opened on the cylinder of the outer tank body 110; wherein the dynamic support structure 160 includes an inner tank body leg 161 and an elastic support 162, wherein the elastic support 162 is located outside the outer tank body 110 and is adiabatically sealed and connected to the leg through-hole 111; the first end of the inner tank body leg 161 is fixedly connected to the outer wall of the cylinder of the inner tank body 120, and the second end of the inner tank body leg 161 contracts and stretches in the direction of approaching and moving away from the annular space between the inner tank body 120 and the outer tank body 110 through the leg through-hole 111.

[0075] As an example, four leg perforations 111 are provided on the cylinder of the outer tank body 110, and at the same time, four groups of inner tank body legs 161 and elastic supports 162 are arranged to match them, distributed below the inner tank body 120. It should be noted that the four groups of inner tank body legs 161 and elastic supports 162 are arranged one-to-one with the four outer support structures 140, and the distance between them is small. In other words, the inner tank body legs 161 and the elastic supports 162 are arranged adjacent to the outer support structure 140. Preferably, the inner tank body legs 161 and the elastic supports 162 are arranged on the inner side of the outer support structure 140.

[0076] Specifically, in the transport state, the support platform first contacts the bottom of the elastic support 162. Under the support of the support platform, the elastic support 162 contracts. When the bottom of the elastic support 162 touches the bottom of the inner tank body leg 161, the inner tank body leg 161 moves upward under the support of the support platform, driving the inner tank body 120 and the ear 152 provided on the inner tank body 120 to move upward, and the ear 152 breaks away from the contact with the slot 153 on the suspension rod 151.

[0077] In the placement state, after the support platform is separated from the elastic support 162, the bottom of the elastic support 162 is extended under the action of the rebound force, and the bottom of the elastic support 162 is separated from the bottom of the inner tank leg 161. The inner tank 120 moves downward under the action of its own weight and the weight of the deep cryogenic liquid inside. When it moves to the point where the lifting ear 152 contacts the slot 153, the inner tank 120 is lifted by the hanging rod 151, and the inner tank 120 stops moving downward. At this time, the bottom of the elastic support 162 is separated from the bottom of the inner tank leg 161, and the heat cannot be directly guided from the outside to the inner tank 120, and the heat leakage is very small.

[0078] In some embodiments, the elastic support 162 is a bellows structure. The inner tank support leg 161 is made of epoxy glass fiber reinforced plastic.

[0079] It should be pointed out that the bellows structure has the ability to stretch freely under vacuum pressure difference. The epoxy fiberglass material can reduce heat leakage on the basis of having sufficient supporting capacity.

[0080] In some embodiments, an injection pipe 170 and / or an outlet pipe 180 of a cryogenic liquid are connected between the outer tank 110 and the inner tank 120; wherein the injection pipe 170 and / or the outlet pipe 180 are flexible connecting pipes. In the above solution, the flexible pipe system can meet a certain vertical relative displacement between the inner tank 120 and the outer tank 110.

[0081] In some embodiments, the outer surface of the inner tank body 120, the outer surface of the injection pipe 170 and / or the outer surface of the outlet pipe 180, the outer surface of the suspension rod 151, the outer surface of the lifting ear 152, the outer surface of the inner tank body leg 161, etc. are all covered with multiple layers of anti-radiation super insulation material, which greatly reduces the radiation heat transfer between the outer tank body 110.

[0082] The present invention also provides a vehicle, comprising a support platform and the cryogenic liquid transport container 100 described above. The vehicle may be a hydrogen fuel vehicle or other transport vehicles.

[0083] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A cryogenic liquid transport container, comprising an outer tank body and an inner tank body arranged in the outer tank body, wherein an outer support structure is arranged outside the cylinder of the outer tank body; It is characterized in that Also includes: A static support structure is disposed in the annular space between the inner tank body and the outer tank body, wherein a first end of the static support structure is fixedly connected to the inner wall of the outer tank body, and a second end of the static support structure is switchably connected to the outer wall of the cylinder of the inner tank body in a disengageable and contactable manner; A dynamic support structure, wherein a first end of the dynamic support structure is fixedly connected to the outer wall of the cylinder of the inner tank body, and a second end of the dynamic support structure passes through the cylinder of the outer tank body and is sealed and telescopically connected thereto; Wherein, when the transport container is in a transport state, the second end of the dynamic support structure shrinks toward the annular space between the inner tank body and the outer tank body under the support of the support platform until the second end of the static support structure is out of contact with the outer wall of the cylinder of the inner tank body; When the transport container is in a placed state, the second end of the dynamic support structure separates from the support platform and extends in a direction away from the annular space between the inner tank body and the outer tank body until the second end of the static support structure contacts the outer wall of the cylinder of the inner tank body.

2. The cryogenic liquid transport container according to claim 1, characterized in that: The static support structure includes a suspension rod and a suspension lug; Among them, the first end of the suspension rod is fixedly connected to the inner wall of the outer tank body, and the second end is provided with a slot extending in the vertical direction. The lifting ear is fixedly connected to the outer wall of the cylinder of the inner tank body, and the slot and the lifting ear can be switched between disengagement and contact.

3. The cryogenic liquid transport container according to claim 2, characterized in that: The width of the clamping groove in the axial direction of the transport container is greater than the width of the lifting ear in the axial direction of the transport container; The length of the slot in the vertical direction matches the telescopic length of the second end of the dynamic support structure.

4. The cryogenic liquid transport container according to claim 2, characterized in that: The suspension rod is made of carbon fiber composite material; Wherein, the suspension rod is fixedly connected to the inner wall of the outer tank body through a top support.

5. The cryogenic liquid transport container according to claim 2, characterized in that ； In the vertical direction, the first end of the suspension rod is higher than the second end of the suspension rod, and the angle between the suspension rod and the vertical direction is in the range of 40° to 50°.

6. The cryogenic liquid transport container according to any one of claims 1 to 5, characterized in that: The outer tank body is provided with leg holes on the cylinder; Wherein, the dynamic support structure comprises inner tank legs and elastic supports, wherein the elastic supports are located outside the outer tank and are thermally adiabatically sealed and connected to the legs through holes; The first end of the inner tank body leg is fixedly connected to the outer wall of the cylinder of the inner tank body, and the second end of the inner tank body leg contracts and stretches in the direction of approaching and moving away from the annular space between the inner tank body and the outer tank body through the leg perforation.

7. The cryogenic liquid transport container according to claim 6, characterized in that: The elastic support adopts a bellows structure.

8. The cryogenic liquid transport container according to claim 6, characterized in that: The inner tank body legs are made of epoxy glass fiber reinforced plastics.

9. The cryogenic liquid transport container according to any one of claims 1 to 5, characterized in that: An injection pipe and / or an outlet pipe for cryogenic liquid are connected between the outer tank body and the inner tank body; Wherein, the injection pipe and / or the outlet pipe adopts a flexible connecting pipe.

10. A vehicle, characterized in that: The invention comprises a supporting platform and a cryogenic liquid transport container according to any one of claims 1 to 9.

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