Low temperature storage container

Abstract

The present invention provides a low-temperature storage and transportation container, including an outer tank, a plurality of inner liners and a support assembly. The outer tank includes a cylinder and two heads respectively located at both ends of the cylinder; a plurality of inner liners are arranged side by side and spaced apart in the outer tank; each inner liners extends between the two heads, and each inner liners has a space between the cylinder; the support assembly is supported between the plurality of inner liners and the outer tank. Through the above arrangement, a plurality of inner liners are adapted to an outer tank, the diameter of the inner liners is reduced, and the wall thickness of the inner liners is effectively reduced when the design pressure bearing capacity of the inner liners is the same, thereby reducing the difficulty of making the inner liners materials, the difficulty of molding the inner liners and the difficulty of detecting the inner liners after molding, and finally reducing the difficulty of manufacturing the inner liners. Moreover, the pressure of the plurality of inner liners can be set according to actual needs, and different media can be stored and transported to meet various needs.

Description

Technical Field

[0001] The present invention relates to the technical field of cryogenic medium storage and transportation equipment, and in particular to a cryogenic storage and transportation container. Background Art

[0002] In recent years, the global energy problem has attracted more and more attention from most people, and the storage and transportation of energy have also been increasingly valued by various countries. Cryogenic storage and transportation containers can store and transport various cryogenic media, almost replacing traditional high-pressure gas storage tanks, and are widely used in various fields such as energy, environmental protection, medicine, and food.

[0003] Cryogenic storage and transportation containers refer to storage and transportation equipment used to store and transport cryogenic media, generally including an outer tank and an inner tank. The inner tank is used to store cryogenic media, so the inner tank is required to be able to withstand the pressure from the cryogenic media. With the expansion of the application scope of cryogenic storage and transportation containers, some cryogenic media with higher pressures are also stored and transported using cryogenic storage and transportation containers, which increases the design pressure bearing capacity of the inner tank, increases the wall thickness of the inner tank, and makes the material manufacturing of the inner tank more difficult, the molding of the inner tank more difficult, and the detection of the inner tank after molding more difficult. Summary of the invention

[0004] The object of the present invention is to provide a low-temperature storage and transportation container with a low manufacturing difficulty of the inner liner, so as to solve the problems in the prior art.

[0005] In order to solve the above technical problems, the present invention provides a low-temperature storage and transportation container, comprising: an outer tank, comprising a cylinder and two heads respectively located at both ends of the cylinder; a plurality of inner tanks, arranged side by side and spaced apart in the outer tank; each of the inner tanks extends between the two heads, and each of the inner tanks has a space between it and the cylinder; a support assembly, supported between the plurality of the inner tanks and the outer tank.

[0006] In one embodiment, the plurality of inner containers include a central inner container and a plurality of peripheral inner containers, and the plurality of peripheral inner containers are evenly distributed around the periphery of the central inner container.

[0007] In one embodiment, the support assembly includes a fixed support member and a movable support member respectively located at both ends of the axial direction of the cylinder; the fixed support member and the movable support member are both perpendicular to the axis of the cylinder, and the fixed support member and the movable support member are both provided with a plurality of mounting holes for clamping the inner liner, and the axes of the mounting holes extend along the axial direction of the cylinder; the fixed support members are respectively connected and fixed to the inner liner and the outer tank so that the inner liner and the outer tank are relatively fixed, and the movable support member allows axial relative movement between the inner liner and the outer tank.

[0008] In one embodiment, the fixed support member includes a first support plate, a plurality of first internal connecting members and a plurality of first external connecting members spaced apart on the outer periphery of the first support plate; a plurality of mounting holes are opened on the first support plate; a plurality of first internal connecting members are arranged corresponding to the plurality of first mounting holes, and each of the first internal connecting members is connected and fixed to the first support plate and the inner tank; each of the first external connecting members is connected and fixed to the outer periphery of the cylinder and the support plate.

[0009] In one embodiment, the first external connecting member includes: a first pad, which is arranged on the outer periphery of the first support plate and is perpendicular to the first support plate; a first radial connecting tube, which extends radially along the cylinder; and the first radial connecting tube respectively connects and fixes the first pad and the cylinder.

[0010] In one embodiment, the first inner connecting member includes: a fixed clamping ring, fixedly disposed on the first supporting plate and arranged around the mounting hole; a plurality of clamping grooves are provided on the fixed clamping ring at intervals along its circumference; a rotating clamping ring, fixedly sleeved on the outer circumference of the inner liner; a plurality of buckles are provided on the rotating clamping ring at intervals along its circumference, and the buckles protrude outward; the plurality of buckles are clamped and fixed with the plurality of clamping grooves in a one-to-one correspondence, so that the inner liner is connected and fixed to the first supporting plate.

[0011] In one embodiment, the slot includes a passing portion for the buckle to pass through and a limiting portion for limiting the buckle; the passing portion and the limiting portion of each slot are arranged along the circumferential direction of the fixed snap ring, and the passing portion is communicated with the limiting portion.

[0012] In one embodiment, the movable support member includes a second support plate and a plurality of second external connecting members spaced apart on the outer periphery of the second support plate; the plurality of mounting holes of the movable support member are provided on the second support plate; each of the second external connecting members connects and fixes the outer periphery of the cylinder and the support plate, and the second support plate and the inner tank are movable.

[0013] In one embodiment, the second external connecting member includes: a second pad, which is arranged on the outer periphery of the second support plate and is perpendicular to the second support plate; a second fixed tube, which is fixed to the inner wall of the cylinder; a second radial connecting tube, which extends radially along the cylinder and is sleeved in the second fixed tube; and a baffle, which is fixed to the outer periphery of the second pad and fits onto the lower outer peripheral surface of the second radial connecting tube.

[0014] In one embodiment, the upper spaces of the multiple inner pots are connected by a pipe, the lower spaces of the multiple inner pots are connected by a pipe, or the upper space of the inner pot is connected to the lower space of another inner pot by a pipe.

[0015] In one embodiment, the plurality of inner containers are divided into a plurality of groups, each group comprising one or more inner containers; the plurality of inner containers in each group are connected to each other via a pipe.

[0016] In one embodiment, the diameters of the plurality of inner containers are the same or the diameters of the plurality of inner containers are different.

[0017] In one embodiment, the periphery of each inner liner is coated with a thermal insulation layer, or the periphery formed by multiple inner liner is coated with a thermal insulation layer, or the multiple inner liner are divided into multiple groups, and the periphery formed by the inner liner in each group is coated with a thermal insulation layer.

[0018] In one embodiment, it also includes a cold shield container located in the outer tank, the cold shield container extends between the two heads, and there is a gap between the cold shield container and the cylinder; the cold shield container is a sealed structure; each of the inner liners is located in the cold shield container; the support assembly includes an inner support assembly supported between multiple inner liners and the cold shield container and an outer support assembly supported between the outer tank and the cold shield container.

[0019] It can be seen from the above technical solution that the advantages and positive effects of the present invention are:

[0020] The low-temperature storage and transportation container of the present invention includes an outer tank, multiple inner liners and a support assembly. Multiple inner liners are arranged side by side in the outer tank, each inner liners extends between the two heads of the outer tank, and each inner liners has a gap with the cylinder. Through the above arrangement, multiple inner liners are adapted to one outer tank, which reduces the diameter of the inner liners. Under the condition that the design pressure bearing capacity of the inner liners is the same, the pressure that the inner liners need to withstand is further reduced, and the wall thickness of the inner liners is effectively reduced, thereby reducing the difficulty of making the inner liners materials, the difficulty of molding the inner liners and the difficulty of testing the inner liners after molding, and finally reducing the difficulty of manufacturing the inner liners. The pressure of multiple inner liners can be set according to actual needs, and multiple inner liners can also store and transport different media to meet various needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a first embodiment of a low-temperature storage and transportation container of the present invention;

[0022] Figure 2 The present invention Figure 1 A top view of a cryogenic storage and transportation container;

[0023] Figure 3 The present invention Figure 1 A bottom view of the cryogenic storage and transportation container;

[0024] Figure 4It is a partial structural schematic diagram of a fixed support member in Embodiment 1 of a low-temperature storage and transportation container of the present invention;

[0025] Figure 5 It is a schematic structural diagram of a fixed clamp ring in a first embodiment of a low-temperature storage and transportation container of the present invention;

[0026] Figure 6 It is a schematic structural diagram of a rotating clamp ring in a first embodiment of a low-temperature storage and transportation container of the present invention;

[0027] Figure 7 It is a partial structural schematic diagram of the movable support member in the first embodiment of the low-temperature storage and transportation container of the present invention;

[0028] Figure 8 This is a schematic structural diagram of a third embodiment of a low-temperature storage and transportation container of the present invention;

[0029] Fig. 9 This is a schematic structural diagram of a fourth embodiment of a low-temperature storage and transportation container of the present invention;

[0030] Fig.10 This is a schematic structural diagram of a fifth embodiment of a low-temperature storage and transportation container of the present invention;

[0031] Fig.11 2 is a schematic structural diagram of the front end of a sixth embodiment of a low-temperature storage and transportation container of the present invention;

[0032] Fig.12 2 is a schematic structural diagram of the rear end of the sixth embodiment of the low-temperature storage and transportation container of the present invention;

[0033] Fig.13 It is a structural schematic diagram of Embodiment 7 of the low-temperature storage and transportation container of the present invention.

[0034] The accompanying drawings are described as follows: 1. low-temperature storage and transportation container; 11. outer tank; 111. cylinder; 112. head; 12. liner; 13. fixed support; 131. first support plate; 133. first reinforcing rib; 1341. first pad; 135. first reinforcing ring; 136. first reinforcing rib; 1371. fixed snap ring; 1372. rotating snap ring; 1376. slot; 1377. through portion; 1378. limiting portion; 1379. buckle; 14. movable support; 141. second support plate; 142. second reinforcing ring; 143. second reinforcing rib; 1441. second pad; 145. second reinforcing ring; 146. second reinforcing rib;

[0035] 3. Low temperature storage and transportation container; 31. Outer tank; 32. Center liner; 33. Peripheral liner.

[0036] 4. Low temperature storage and transportation container; 41. Outer tank; 42. Central liner; 43. First peripheral liner; 44. Second peripheral liner;

[0037] 5. Low temperature storage and transportation container; 51. Outer tank; 52. Inner tank;

[0038] 6. Low temperature storage and transportation container; 61. Outer tank; 62. Central liner; 63. First peripheral liner; 64. Second peripheral liner; 65. Third peripheral liner; 66. Fourth peripheral liner; 67. Fifth peripheral liner; 68. Sixth peripheral liner;

[0039] 7. Low-temperature storage and transportation container; 71. Outer tank; 72. Central liner; 721. First gas-connected interface; 722. First liquid-connected interface; 73. Peripheral liner; 731. Second gas-connected interface; 732. Second liquid-connected interface; 741. Support rod; 742. Support frame. DETAILED DESCRIPTION

[0040] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0041] In order to further illustrate the principle and structure of the present invention, preferred embodiments of the present invention are now described in detail with reference to the accompanying drawings.

[0042] The present invention provides a low-temperature storage and transportation container for storing and transporting cryogenic media, such as liquid, gaseous or supercritical hydrogen, helium, nitrogen, oxygen, argon, natural gas, etc.

[0043] Example 1 of low temperature storage and transportation container

[0044] See also Figure 1 The low temperature storage and transportation container 1 in this embodiment is a vertical low temperature storage and transportation container 1. During use, the low temperature storage and transportation container 1 is placed vertically. The low temperature storage and transportation container 1 mainly includes an outer tank 11, multiple inner tanks, a support assembly and a thermal insulation layer.

[0045] The outer tank 11 includes a cylinder 111 and seals 112 located at both ends of the cylinder 111. In this embodiment, the cylinder 111 is cylindrical, and the axis extends vertically. The material of the outer tank 11 is carbon steel or stainless steel.

[0046] A plurality of inner containers are arranged side by side in the outer tank 11. Specifically, each inner container extends between two end caps 112 of the outer tank 11, and there is a gap between each inner container and the cylinder 111.

[0047] In this embodiment, there are seven inner containers, and the diameters of the inner containers are the same, and the axes of the inner containers are parallel to the axis of the outer tank 11. Among the seven inner containers, one is located in the center, which is defined as the central inner container; the remaining six inner containers are located at the periphery of the central inner container, which are defined as peripheral inner containers. The peripheral inner containers are evenly distributed around the periphery of the central inner container. Specifically, the centers of the six peripheral inner containers are located on the same circumference.

[0048] In other embodiments, the diameters of the inner liner may be different. For example, one inner liner has a first diameter, and the diameters of the remaining inner liner are all second diameters; or three inner liner have a first diameter, and the diameters of the remaining four inner liner are all second diameters; or two inner liner have a first diameter, the other two have a second diameter, and the remaining three have a third diameter.

[0049] Specifically in this embodiment, refer to Figure 2 and Figure 3 , seven inner tanks form a group, that is, the tops of the inner tanks are interconnected through pipes, the bottoms are interconnected through pipes, and the pipe on one of the inner tanks extends out of the outer tank 11 to communicate with the outside. For example, the first inner tank and the second inner tank of the six peripheral inner tanks are connected at the top through a pipe, the second inner tank and the third inner tank are connected at the top through a pipe, the third inner tank and the fourth inner tank are connected at the top through a pipe, the fourth inner tank and the fifth inner tank are connected at the top through a pipe, the fifth inner tank and the sixth inner tank are connected at the top through a pipe, and the sixth inner tank and the central inner tank are connected at the top through a pipe, wherein the top opening of the first inner tank is connected to the outside as a gas phase port, and the bottom opening of the first inner tank is connected to the outside as a liquid phase port.

[0050] In other embodiments, multiple inner tanks can be grouped, for example, two inner tanks form a group, and the inner tanks in the same group are interconnected through pipes, and an opening of one of the inner tanks is selected to be connected to the outside through a pipe to serve as a gas phase port and a liquid phase port. The grouped inner tanks enable the low-temperature storage and transportation container 1 to store and transport different media to meet different needs.

[0051] The support assembly is located in the outer tank 11 and supported between the multiple inner tanks and the outer tank 11, so that the multiple inner tanks are stably located in the outer tank 11. Specifically, the support assembly includes a fixed support member 13 and a movable support member 14. The fixed support member 13 and the movable support member 14 are respectively located at both ends of the axial direction of the cylinder 111, that is, the fixed support member 13 is located at the bottom end of the cylinder 111, and the movable support member 14 is located at the top end of the cylinder 111.

[0052] See also Figure 4The fixed support member 13 includes a first support plate 131, a first reinforcement ring, a first reinforcement rib 133, a first outer connecting member, a first reinforcement ring 135, a first reinforcement rib 136 and a first inner connecting member.

[0053] The first support plate 131 is located at the bottom of the cylinder 111 of the outer tank 11 and is perpendicular to the axis of the cylinder 111. There is a gap between the outer periphery of the first support plate 131 and the inner wall of the cylinder 111. In this embodiment, the first support plate 131 is circular.

[0054] The first support plate 131 is provided with a plurality of first mounting holes for clamping the inner container. The shape of the first mounting holes matches the shape of the inner container. In this embodiment, the number of the first mounting holes is seven. One of the first mounting holes is provided at the center of the first support plate 131, and the other six first mounting holes are arranged around the first mounting hole at the center, and the centers of the six first mounting holes are located on the same circumference.

[0055] A plurality of first reinforcing rings 132 are arranged one by one corresponding to the plurality of first mounting holes. The first reinforcing ring 132 is arranged on the first support plate 131 and surrounds the first mounting hole, and the top of the first reinforcing ring exceeds the first support plate 131. The arrangement of the first reinforcing ring strengthens the strength of the first support plate 131 to better support each liner. The first reinforcing rib 133 is connected between any two adjacent first reinforcing rings to increase the strength of the fixed support 13.

[0056] The first support plate 131 may also be provided with weight-reducing holes according to strength and weight requirements.

[0057] A plurality of first external connecting members are arranged at intervals on the outer periphery of the first supporting plate 131 to connect the fixed cylinder 111 and the first supporting plate 131. Specifically, each first external connecting member includes a first pad 1341, a first radial connecting pipe, a first fixed pipe and a first transition pipe.

[0058] The first pads 1341 are disposed at intervals on the outer periphery of the first support plate 131 , and the first pads 1341 are perpendicular to the first support plate 131 .

[0059] The first radial connecting pipe extends in the radial direction of the cylinder 111, and its two ends are respectively connected to the first pad 1341 and the cylinder 111 to achieve the connection and fixation between the outer tank 11 and the first support plate 131. Specifically in this embodiment, the first radial connecting pipe is connected and fixed to the first pad 1341 through the first fixing pipe, and is connected and fixed to the cylinder 111 through the first transition pipe.

[0060] The axes of the first fixed pipe and the first transition pipe extend radially along the cylinder 111, and the two ends of the first radial connecting pipe are respectively sleeved in the first fixed pipe and the first transition pipe. The first radial connecting pipe is concentric with the first fixed pipe, and the first radial connecting pipe is concentric with the first transition pipe. The material of the first radial connecting pipe is glass fiber reinforced plastic, and the first transition pipe has the same structure and material as the first fixed pipe.

[0061] The first reinforcing ring 135 is disposed on the outer periphery of the first supporting plate 131, and the first pads 1341 of the plurality of first external connecting members are disposed on the outer periphery of the first reinforcing ring 135 to achieve connection between the plurality of first pads 1341 and the first reinforcing ring 135. Both ends of the first reinforcing ring 135 extend beyond the first supporting plate 131, and both ends of the first pad 1341 extend beyond the first reinforcing ring 135.

[0062] A first reinforcing rib 136 is further provided between each first pad 1341 and the first support plate 131 to enhance the connection strength between the first pad 1341 and the first support plate 131. Specifically, the first reinforcing rib 136 is welded to the first reinforcing ring 135 to achieve connection with the first pad 1341.

[0063] The first reinforcing rib 136 may be a rib plate perpendicular to the first support plate 131, and the rib plate is trapezoidal. The first reinforcing rib 136 may also be a reinforcing ring, and the axis of the first reinforcing ring 132 is parallel to the first support plate 131, and the axis of the first reinforcing ring 132 extends horizontally. In this embodiment, the end of the first reinforcing ring 132 abuts against the first pad 1341.

[0064] A first reinforcing rib 133 is also provided between the first reinforcing ring 135 and the adjacent first reinforcing ring 132 to increase the strength of the fixing support member 13 .

[0065] The plurality of first inner connectors are arranged in one-to-one correspondence with the plurality of mounting holes on the first support plate 131 , that is, the plurality of first inner connectors are arranged in one-to-one correspondence with the plurality of inner tanks. Specifically, the first inner connector includes a fixed snap ring 1371 and a rotating snap ring 1372 .

[0066] The fixing snap ring 1371 is disposed on the top of the first reinforcement ring. In this embodiment, the fixing snap ring 1371 is integrally formed with the first reinforcement ring, that is, the fixing snap ring 1371 also serves as the first reinforcement ring in this embodiment. In other implementations, the fixing snap ring 1371 can also be welded to the outer periphery of the first reinforcement ring or welded to the inner periphery of the first reinforcement ring.

[0067] See also Figure 5A plurality of slots 1376 are arranged at intervals along the circumference of the fixed snap ring 1371. The slots 1376 include a through portion 1377 for the buckle 1379 to pass through and a limiting portion 1378 for limiting the buckle 1379. The through portion 1377 and the limiting portion 1378 are distributed along the circumference of the fixed snap ring 1371, and the through portion 1377 and the limiting portion 1378 are connected. The through portion 1377 is arranged at the top of the fixed snap ring 1371 and has an opening.

[0068] The rotating clamp ring 1372 is sleeved on the outer periphery of the top of the inner container. In this embodiment, the rotating clamp ring 1372 is fixedly connected to the inner container.

[0069] See also Figure 6 A plurality of buckles 1379 protruding outward are provided at intervals along the circumference of the rotating buckle 1372. The buckles 1379 enter the through portion 1377 through the opening of the slot 1376, and enter the limiting portion 1378 of the slot 1376 after rotation, so as to realize the connection and fixation between the rotating buckle 1372 and the fixed buckle 1371, and further realize the connection and fixation between the inner container and the first support plate 131.

[0070] During installation, the inner liner is clamped into the first installation hole, so that the buckle 1379 of the rotating clamp ring 1372 passes through the through portion 1377 of the fixed clamp ring 1371; then the inner liner is rotated so that the buckle 1379 of the rotating clamp ring 1372 is placed in the limiting portion 1378 of the clamping groove 1376, so that the inner liner is connected and fixed to the second support plate of the fixed support 13. Conversely, when disassembling the inner liner, the inner liner is rotated in the opposite direction to that during installation, so that the buckle 1379 rotates to the through portion 1377, and the inner liner is separated from the second support plate, that is, the inner liner and the fixed support 13 are disassembled.

[0071] See also Figure 7 The movable support 14 includes a second support plate 141, a second reinforcement ring 142, a second reinforcement rib 143, a second external connection member, a second reinforcement ring 145 and a second reinforcement rib 146.

[0072] The second support plate 141 is located at the top of the cylinder 111 of the outer tank 11 and is perpendicular to the axis of the cylinder 111. There is a gap between the outer periphery of the second support plate 141 and the inner wall of the cylinder 111. In this embodiment, the second support plate 141 is circular.

[0073] The second support plate 141 is provided with a plurality of second mounting holes for clamping the inner liner. And the shape of the second mounting hole is adapted to the shape of the inner liner. In this embodiment, the number of the second mounting holes is seven. One of the second mounting holes is provided at the center of the second support plate 141, and the axis of the second mounting hole and the first mounting hole located at the center are located on the same straight line to jointly support an inner liner. The other six second mounting holes are arranged around the second mounting hole at the center, and the centers of the six second mounting holes are located on the same circumference. At the same time, the six second mounting holes are arranged one-to-one with the six first mounting holes located at the periphery, so that the axes of a first mounting hole and a second mounting hole are located on the same straight line to jointly support an inner liner.

[0074] The plurality of second reinforcing rings 142 are arranged in one-to-one correspondence with the plurality of second mounting holes. The second reinforcing rings 142 are arranged on the second support plate 141 and surround the second mounting holes, and the top of the second reinforcing ring 142 exceeds the second support plate 141. The arrangement of the second reinforcing rings 142 strengthens the strength of the second support plate 141 to better support each liner.

[0075] A lining layer or an epoxy glass plate is also provided on the inner side wall of the second reinforcement ring and the inner peripheral wall of the second mounting hole, which can not only reduce the wear between the inner liner and the second reinforcement ring, and the inner liner and the second support plate, but also reduce the heat transfer between the inner liner and the second reinforcement ring, and the inner liner and the second support plate.

[0076] The second reinforcing ribs 143 are connected between any two adjacent second reinforcing rings 142 to increase the strength of the movable support 14 .

[0077] A plurality of second outer connecting members are arranged at intervals on the outer circumference of the second support plate 141 to connect the fixed cylinder 111 and the second support plate 141. Specifically, each second outer connecting member includes a second pad 1441, a second radial connecting pipe, a second fixed pipe and a second transition pipe.

[0078] The second pads 1441 are disposed at intervals on the outer periphery of the second support plate 141 , and the second pads 1441 are perpendicular to the second support plate 141 .

[0079] The second radial connecting pipe extends in the radial direction of the cylinder 111, and its two ends are respectively connected to the second pad 1441 and the cylinder 111 to achieve the connection and fixation between the outer tank 11 and the second support plate 141. Specifically in this embodiment, the second radial connecting pipe is connected and fixed to the second pad 1441 through the second fixing pipe, and is connected and fixed to the cylinder 111 through the second transition pipe.

[0080] The axes of the second fixed pipe and the second transition pipe extend radially along the cylinder 111, and the two ends of the second radial connecting pipe are respectively sleeved in the second fixed pipe and the second transition pipe. The second radial connecting pipe is concentric with the second fixed pipe, and the second radial connecting pipe is concentric with the second transition pipe. The material of the second radial connecting pipe is glass fiber reinforced plastic, and the second transition pipe has the same structure and material as the second fixed pipe.

[0081] The second reinforcing ring 145 is disposed on the outer periphery of the second supporting plate 141, and the second pads 1441 of the second external connecting members are disposed on the outer periphery of the second reinforcing ring 145 to achieve connection between the second pads 1441 and the second reinforcing ring 145. Both ends of the second reinforcing ring 145 extend beyond the second supporting plate 141, and both ends of the second pads 1441 extend beyond the second reinforcing ring 145.

[0082] A second reinforcing rib 146 is further provided between each second pad 1441 and the second support plate 141 to enhance the connection strength between the second pad 1441 and the second support plate 141. Specifically, the second reinforcing rib 146 is welded to the second reinforcing ring 145 to achieve connection with the second pad 1441.

[0083] The second reinforcing rib 146 may be a rib plate perpendicular to the second support plate 141, and the rib plate is trapezoidal. The second reinforcing rib 146 may also be a reinforcing ring, and the axis of the second reinforcing ring 142 is parallel to the second support plate 141, and the axis of the second reinforcing ring 142 extends horizontally. In this embodiment, the end of the second reinforcing ring 142 abuts against the second pad 1441.

[0084] A second reinforcing rib 143 is also provided between the second reinforcing ring 145 and the adjacent second reinforcing ring 142 to increase the strength of the movable support member 14 .

[0085] The movable support 14 is connected and fixed to the second support plate 141 and the cylinder 111 through the second external connecting member. The relative movement in the axial direction between the inner liner and the outer tank 11 is achieved through the mobility between the second support plate 141 and the inner liner, thereby achieving movable support.

[0086] The working principle of the low-temperature storage and transportation container 1 in this embodiment is as follows: the movable support 14 allows the inner liner and the outer tank 11 to have axial relative movement; the fixed support 13 makes the inner liner and the outer tank 11 relatively fixed. The movable support 14 provides the displacement of the inner liner to shrink downward, so that the inner liner can slide axially relative to the outer tank 11 to meet the needs of thermal expansion and contraction of the inner liner.

[0087] The thermal insulation layer is coated on the outer periphery of the inner liner. Specifically in the present embodiment, the number of the thermal insulation layers is seven, which are coated on the outer periphery of each inner liner respectively. In other embodiments, the number of the thermal insulation layer can also be one, which is coated on the outer periphery formed by the seven inner liner, that is, the outer periphery formed by the six inner liner located on the outer periphery. The number of the thermal insulation layers can also be two, one of which is coated on the outer periphery formed by four of the inner liner, and the other is coated on the outer periphery formed by the remaining three inner liner. The number of the thermal insulation layers can also be three or four, and each thermal insulation layer respectively coats one or more inner liner.

[0088] The insulation layer may also include an inner insulation layer and an outer insulation layer. For example, the inner insulation layer covers the central inner liner and three adjacent peripheral inner liner. The outer insulation layer covers the outer circumference formed by the seven inner liner, and the inner insulation layer is located inside the outer insulation layer. The number of inner liner covered by the inner insulation layer can be set according to actual needs.

[0089] Example 2 of low temperature storage and transportation container

[0090] The difference between this embodiment and the first embodiment of the low-temperature storage and transportation container is that the movable support member includes a movable second support plate, a second reinforcement ring, a second reinforcement rib, a second outer connecting member, a second reinforcement ring, a second reinforcement rib and a second inner connecting member.

[0091] The second outer connecting member includes a second pad, a second radial connecting tube, a second fixing tube and a blocking bar.

[0092] Among them, the second pad, the second reinforcement ring, the second radial connecting pipe, and the second fixing pipe refer to the second external connecting piece in the first embodiment of the low-temperature storage and transportation container and will not be described in detail.

[0093] The plurality of second outer connecting members' baffles are arranged one by one corresponding to the plurality of second pads. Each baffle is attached to the outer peripheral surface of the lower side of the second radial connecting tube to provide an upward limiting function in the axial direction. The baffle is semicircular and has the same center as the second radial connecting tube.

[0094] The second support plate, the second reinforcement ring, the second reinforcement rib, the second reinforcement ring and the second reinforcement rib refer to the description in the first embodiment of the low-temperature storage and transportation container, and the second inner connecting piece refers to the first inner connecting piece in the first embodiment of the low-temperature storage and transportation container, and will not be described in detail.

[0095] The movable support member in this embodiment connects and fixes each inner liner and the second support plate through the second inner connecting member, and connects and fixes the cylinder through one end of the second outer connecting member. The other end of the second outer connecting member and the second support plate are movable to achieve relative movement in the axial direction between the inner liner and the outer tank, thereby achieving movable support.

[0096] Other features of the low-temperature storage and transportation container in this embodiment can be referred to in Example 1 and will not be described in detail.

[0097] Example 3 of low temperature storage and transportation container

[0098] See also Figure 8 The difference between the low-temperature storage and transportation container 3 of this embodiment and the embodiment 1 is that the number of inner liners arranged in the outer tank 31 is six, among which the number of central inner liners 32 is one, the number of peripheral inner liners 33 is five, and the centers of the five peripheral inner liners 33 are located on the same circumference.

[0099] The diameter of the central inner container 32 is a first diameter, and the diameters of the five peripheral inner containers 33 are the same, which is a second diameter. The second diameter is different from the first diameter.

[0100] Other features of the low-temperature storage and transportation container 3 in this embodiment can be referred to in the first embodiment and will not be described in detail.

[0101] Example 4 of low temperature storage and transportation container

[0102] See also Fig. 9 The difference between the low-temperature storage and transportation container 4 of this embodiment and the first embodiment is that the number of the inner liners arranged in the outer tank 41 is nine, among which the number of the central inner liners 42 is one, and the outer peripheral inner liners include a plurality of first outer peripheral inner liners 43 and a plurality of second outer peripheral inner liners 44 arranged at intervals, that is, a second outer peripheral inner liner 44 is arranged between any two adjacent first outer peripheral inner liners 43, and a first outer peripheral inner liner 43 is arranged between any two adjacent second outer peripheral inner liners 44, that is, there are four first outer peripheral inner liners 43 and four second outer peripheral inner liners 44. The centers of the four first outer peripheral inner liners 43 are located on the same circumference, and the centers of the four second outer peripheral inner liners 44 are located on the same circumference.

[0103] The diameter of the central inner pot 42 is the first diameter, the diameters of the four first peripheral inner pots 43 are the same, which is the second diameter, and the diameters of the four second peripheral inner pots 44 are the same, which is the third diameter. Specifically in this embodiment, the third diameter is the same as the first diameter.

[0104] Other features of the low-temperature storage and transportation container 4 in this embodiment can be referred to in the first embodiment and will not be described in detail.

[0105] Example 5 of low temperature storage and transportation container

[0106] See also Fig.10 The difference between the low-temperature storage and transportation container 5 of this embodiment and the first embodiment is that the cross section of the cylinder of the outer tank 51 is elliptical. There are two inner tanks 52, and the centers of the two inner tanks 52 and the center of the cylinder are located on the same straight line. The shapes of the first support plate and the second support plate are adapted to the cross-sectional shape of the cylinder.

[0107] The first inner connector of the fixed support member can adopt the method of embodiment 1, and the first support plate and the inner liner can be directly welded to achieve the fixed connection between the first support plate and the inner liner. Other features of the low-temperature storage and transportation container 5 in this embodiment can refer to embodiment 1 and will not be described in detail.

[0108] Example 6 of Low Temperature Storage and Transportation Container

[0109] The difference between the low-temperature storage and transportation container 6 of this embodiment and the first embodiment is that the low-temperature storage and transportation container is a horizontal low-temperature storage and transportation container. During use, the low-temperature storage and transportation container is placed horizontally, that is, the axis of the low-temperature storage and transportation container extends horizontally.

[0110] The axis of the outer tank 61 extends horizontally.

[0111] There are seven inner containers, and the top of the front end of each inner container has an opening, the top of the rear end of each inner container has an opening, and the bottom of the rear end of each inner container has an opening.

[0112] Specifically, the inner shells are a first peripheral inner shell 63 , a second peripheral inner shell 64 , a third peripheral inner shell 65 , a fourth peripheral inner shell 66 , a fifth peripheral inner shell 67 , a sixth peripheral inner shell 68 and a central inner shell 62 .

[0113] The first peripheral liner 63, the second peripheral liner 64 and the third peripheral liner 65 are the first group of liner groups. The fourth peripheral liner 66, the fifth peripheral liner 67, the sixth peripheral liner 68 and the central liner 62 are the second group of liner groups. The two groups of liner groups can store and transport the same medium or different media.

[0114] See also Fig.11 The opening at the front end of the first peripheral liner 63 is connected to the opening at the front end of the second peripheral liner 64 through a pipe, and the opening at the front end of the second peripheral liner 64 is connected to the opening at the front end of the third peripheral liner 65 through a pipe. The opening at the front end of the fourth peripheral liner 66 is connected to the opening at the front end of the fifth peripheral liner 67 through a pipe, the opening at the front end of the fifth peripheral liner 67 is connected to the opening at the front end of the sixth peripheral liner 68 through a pipe, and the opening at the front end of the sixth peripheral liner 68 is connected to the opening at the front end of the central liner 62 through a pipe.

[0115] See also Fig.12 The opening at the top of the rear end of the first peripheral inner liner 63 is connected to the outside, the opening at the bottom of the rear end of the first peripheral inner liner 63 is connected to the opening at the top of the rear end of the second peripheral inner liner 64 through a pipe, the opening at the bottom of the rear end of the second peripheral inner liner 64 is connected to the opening at the top of the rear end of the third peripheral inner liner 65 through a pipe, and the opening at the bottom of the rear end of the third peripheral inner liner 65 is connected to the outside.

[0116] The opening at the top of the rear end of the sixth peripheral inner liner 68 is connected to the outside, the opening at the bottom of the rear end of the sixth peripheral inner liner 68 is connected to the opening at the top of the rear end of the central inner liner 62 via a pipe, the opening at the bottom of the rear end of the central inner liner 62 is connected to the opening at the top of the rear end of the fourth peripheral inner liner via a pipe, the opening at the bottom of the rear end of the fifth peripheral inner liner 67 is connected to the opening at the top of the rear end of the fourth peripheral inner liner 66 via a pipe, and the opening at the bottom of the rear end of the fourth peripheral inner liner 66 is connected to the outside.

[0117] When the same medium is stored and transported in the first and second liner groups, two groups of connecting pipes and pressure reducing valves are arranged outside the outer tank, and the high-pressure side gas phase is used to perform a pressurization operation on the low-pressure side.

[0118] In the horizontal low-temperature storage and transportation container, the movable support is located at the front end and the fixed support is located at the rear end. The rear end refers to the end close to the inlet and outlet pipelines. The structure of the movable support and the fixed support can refer to the first embodiment and will not be described in detail.

[0119] Other features of the low-temperature storage and transportation container 6 in this embodiment can be referred to in the first embodiment and will not be described in detail.

[0120] Example 7 of Low Temperature Storage and Transportation Container

[0121] See also Fig.13 The difference between the low-temperature storage and transportation container 7 of this embodiment and the sixth embodiment is that the number of inner liners located in the outer tank 71 is nine, one of which is a central inner liner 72, and the central inner liner 72 is a first inner liner group. The other eight are peripheral inner liners 73, which are evenly distributed on the periphery of the central inner liner 72 and form a second inner liner group. The second inner liner group surrounds the central inner liner 72 in the middle.

[0122] The diameter of the central inner liner 72 is relatively large, and the diameter of the peripheral inner liner 73 is relatively small.

[0123] A first gas connection interface 721 is provided at the top of the rear end of the central liner 72 , and a first liquid connection interface 722 is provided at the bottom, and both are connected to the outside through pipelines.

[0124] The peripheral inner tanks 73 are interconnected through pipelines, and a second gas connection interface 731 is set at the highest point of the top, and a second liquid connection interface 732 is set at the lowest point of the bottom, and both are connected to the outside through pipelines.

[0125] The support assembly includes a support member and a support frame 742 .

[0126] The support member is supported between the central liner 72 and the cylinder of the outer tank. The support member specifically includes a plurality of support rods 741 spaced along the outer periphery of the central liner 72. The one located at the front end of the outer tank is a movable support, in which case one end of the support rod 741 is fixedly connected to the outer tank, and the other end is movable with the central liner 72. The one located at the rear end of the outer tank is a fixed support, in which one end of the support rod 741 is fixedly connected to the outer tank, and the other end is fixedly connected to the central liner 72. In this embodiment, the support rod 741 is an insulating support rod 741, that is, the material of the support rod 741 is an insulating material.

[0127] The support frame 742 is connected between adjacent peripheral inner tanks 73, and the support frame 742 extends between two heads of the outer tank.

[0128] In this embodiment, the support frame 742 is in an arc shape and is located on the same circumference as the center of each peripheral inner liner 73 .

[0129] A through hole for the central liner 72 to pass through and a plurality of mounting holes for clamping the peripheral liner 73 are opened on it. The mounting holes are evenly arranged on the periphery of the through holes, and the centers of the mounting holes are located on the same circumference.

[0130] The heat-insulating layer includes a heat-insulating layer covering the periphery of the central inner liner 72 and a heat-insulating layer covering the periphery formed by each peripheral inner liner 73 and each support frame 742 .

[0131] The outer periphery formed by each peripheral liner 73 and each supporting frame 742 forms a cold shield after being coated with an insulating layer, which surrounds the central liner 72 inside.

[0132] The cryogenic storage and transportation container in this embodiment can use the medium in each peripheral liner 73 to provide cold energy for the central liner 72. For example, when the second liner group, i.e., each peripheral liner 73, is filled with low-pressure liquid nitrogen, the first liner group, i.e., the central liner 72, is filled with liquid helium or liquid hydrogen, and the liquid nitrogen is used as a cold energy barrier to improve the cold preservation effect of the first liner group.

[0133] In other embodiments, the cold shield can be cooled by attaching the pipe to the surface through pipe clamps, thereby forming heat insulation protection for the inner tank.

[0134] Example 8 of Low Temperature Storage and Transportation Container

[0135] The difference between the low-temperature storage and transportation container of this embodiment and the seventh embodiment is that this embodiment also includes a cold shield container, which is a sealed structure, specifically including a cylinder and heads located at both ends of the cylinder.

[0136] The cold shield container extends between the two heads of the outer tank, and there is a gap between the cold shield container and the cylinder of the outer tank.

[0137] Each inner liner is located in the cold shield container, each inner liner extends between two heads of the cold shield container, and there is a gap between each inner liner and the cylinder of the cold shield container.

[0138] The pipeline connecting the inner tank with the outside passes through the cold shield container and the outer tank.

[0139] The support assembly comprises an inner support assembly supported between a plurality of inner tanks and the cold shield container and an outer support assembly supported between an outer tank and the cold shield container.

[0140] The outer support assembly comprises a radial support tube, a fixed connecting tube and a limit stop strip.

[0141] A plurality of fixed connecting pipes are fixed on the inner wall of the cylinder of the outer tank and are arranged at intervals around the cylinder of the outer tank.

[0142] The plurality of radial support tubes are arranged correspondingly to the plurality of fixed connection tubes, and the radial support tubes extend in the radial direction of the outer tank. Each radial support tube is sleeved in the fixed connection tube, and the two are concentric.

[0143] The plurality of limit stoppers are arranged one by one corresponding to the plurality of radial support tubes, and each limit stopper is attached to the outer peripheral surface of the lower side of the radial support tube to provide an upward limit function in the axial direction. The limit stopper is semicircular, and the stopper is concentric with the radial support tube.

[0144] The inner support assembly includes a support member and a support frame, and the structure of the embodiment 7 may be referred to and will not be described in detail.

[0145] In the low-temperature storage and transportation container of this embodiment, a low-temperature medium can be injected into the cold shield container to protect the medium in each inner tank. From the above technical solution, it can be seen that the advantages and positive effects of the present invention are:

[0146] The low-temperature storage and transportation container of the present invention includes an outer tank, multiple inner liners and a support assembly. Multiple inner liners are arranged side by side in the outer tank, each inner liners extends between the two heads of the outer tank, and each inner liners has a gap with the cylinder. Through the above arrangement, multiple inner liners are adapted to one outer tank, the diameter of the inner liners is reduced, and when the design pressure bearing capacity of the inner liners is the same, the wall thickness of the inner liners is effectively reduced, thereby reducing the difficulty of making the inner liners materials, the difficulty of molding the inner liners and the difficulty of testing the inner liners after molding, and finally reducing the difficulty of manufacturing the inner liners. The pressure of multiple inner liners can be set according to actual needs, and multiple inner liners can also store and transport different media to meet various needs.

[0147] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A low temperature storage and transportation container, characterized in that: include: The outer tank comprises a cylinder and two heads respectively located at two ends of the cylinder; A plurality of inner tanks are arranged side by side and spaced apart in the outer tank; each inner tank extends between the two end caps, and each inner tank has a space between it and the cylinder; A support assembly, supported between the plurality of inner tanks and the outer tank; the support assembly comprises a fixed support member and a movable support member respectively located at both ends of the cylinder axis direction; the fixed support member and the movable support member are both perpendicular to the cylinder axis, and the fixed support member and the movable support member are both provided with a plurality of mounting holes for clamping the inner tank, and the axes of the mounting holes extend along the axis direction of the cylinder; The fixed support member is respectively connected and fixed to the inner liner and the outer tank so that the inner liner and the outer tank are relatively fixed, and the movable support member allows the inner liner and the outer tank to have axial relative movement; The fixed support member includes a first support plate, a plurality of first inner connecting members, and a plurality of first outer connecting members spaced apart on the outer periphery of the first support plate; a plurality of mounting holes are provided on the first support plate; a plurality of first inner connecting members are provided corresponding to the plurality of mounting holes, and each of the first inner connecting members is connected and fixed to the first support plate and the inner container; Each of the first external connecting members connects and fixes the outer periphery of the cylinder and the support plate; The first external connecting member comprises: A first pad, disposed on the outer periphery of the first support plate, and the first pad is perpendicular to the first support plate; a first radial connecting pipe extending in the radial direction of the cylinder; the first radial connecting pipe is respectively connected and fixed to the first pad and the cylinder; The movable support member comprises a second support plate and a plurality of second external connecting members spaced apart on the outer periphery of the second support plate; the plurality of mounting holes of the movable support member are provided on the second support plate; each of the second external connecting members is connected and fixed to the outer periphery of the cylinder and the second support plate, and the second support plate and the inner container are movable; The second external connecting member comprises: A second pad, disposed on the outer periphery of the second support plate, and the second pad is perpendicular to the second support plate; A second fixed tube, fixed to the inner wall of the cylinder; A second radial connecting tube, extending in the radial direction of the cylinder and sleeved in the second fixing tube; The upper spaces of the multiple inner containers are connected through a pipe, the lower spaces of the multiple inner containers are connected through a pipe, or the upper space of the inner container is connected to the lower space of another inner container through a pipe.

2. The low-temperature storage and transportation container according to claim 1, characterized in that: The plurality of inner containers include a central inner container and a plurality of peripheral inner containers, and the plurality of peripheral inner containers are evenly distributed around the periphery of the central inner container.

3. The low temperature storage and transportation container according to claim 1, characterized in that: The first inner connecting member comprises: A fixed clamping ring, fixedly arranged on the first supporting plate and arranged around the mounting hole; a plurality of clamping grooves are arranged on the fixed clamping ring at intervals along the circumference thereof; A rotating clamp is fixedly sleeved on the outer circumference of the inner liner; a plurality of buckles are arranged on the rotating clamp at intervals along the circumference thereof, and the buckles protrude outward; The plurality of buckles are fixedly connected with the plurality of slots in a one-to-one correspondence, so that the inner container is connected and fixedly connected with the first supporting plate.

4. The low-temperature storage and transportation container according to claim 3, characterized in that: The clamping slot includes a passing portion for the buckle to pass through and a limiting portion for limiting the buckle; the passing portion and the limiting portion of each clamping slot are arranged along the circumferential direction of the fixed clamp ring, and the passing portion is communicated with the limiting portion.

5. The low temperature storage and transportation container according to claim 1, characterized in that: The second external connecting member comprises: The baffle is fixed to the outer periphery of the second pad and is attached to the lower outer peripheral surface of the second radial connecting pipe.

6. The low-temperature storage and transportation container according to claim 1, characterized in that: The multiple inner containers are divided into multiple groups, each group contains one or more inner containers; the multiple inner containers in each group are connected through pipelines.

7. The low-temperature storage and transportation container according to claim 1, characterized in that: The diameters of the multiple inner containers are the same or the diameters of the multiple inner containers are different.

8. The low-temperature storage and transportation container according to claim 1, characterized in that: The periphery of each inner liner is coated with a thermal insulation layer, or the periphery formed by a plurality of inner liner is coated with a thermal insulation layer, or the plurality of inner liner are divided into a plurality of groups, and the periphery formed by the inner liner in each group is coated with a thermal insulation layer.

9. The low-temperature storage and transportation container according to claim 1, characterized in that: It also includes a cold shield container located in the outer tank, the cold shield container extends between the two heads, and there is a gap between the cold shield container and the cylinder; the cold shield container is a sealed structure; Each of the inner tanks is located in the cold shield container; The support assembly includes an inner support assembly supported between the plurality of inner tanks and the cold shield container and an outer support assembly supported between the outer tank and the cold shield container.

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