Vertical low-temperature storage tank device

Abstract

The invention provides a vertical low-temperature storage tank device. The vertical low-temperature storage tank device comprises an inner tank, a support, a heat preservation tank, an outer tank and an inflation pipe. The support is arranged at the bottom of the inner tank and used for supporting the inner tank. The heat preservation tank covers the outer side of the inner tank, the inner tank is contained in the heat preservation tank, a first interlayer is formed between the heat preservation tank and the inner tank, and a first heat preservation layer is arranged in the first interlayer. The outer tank covers the outer side of the heat preservation tank, a second interlayer is formed between the outer tank and the heat preservation tank, and a second heat preservation layer is arranged in the second interlayer. The gas filling pipe is arranged in the second interlayer and continuously introduces dry protective gas into the second interlayer, the second interlayer is filled with the protective gas, and the gas pressure in the second interlayer is larger than that of the external environment. The vertical low-temperature storage tank device can greatly shorten the construction time period, improve the construction efficiency and save the cost.

Description

Technical Field

[0001] This invention relates to the field of storage tanks, and particularly to a vertical cryogenic storage tank device. Background Technology

[0002] Due to limitations such as transportation, large cryogenic storage tanks usually need to be manufactured on-site. Currently, most containers for storing cryogenic media use vacuum or high vacuum insulation. The outer tank needs to withstand a negative pressure of 0.1 MPa. In order to meet the design requirements, in addition to using thicker plates, the outer tank also needs to add a certain number of reinforcing rings, which significantly increases the manufacturing cost of materials such as plate and welding materials for the container.

[0003] For large cryogenic storage tanks fabricated on-site, it is generally necessary to evacuate the internal insulation space. Due to the large construction volume of large cryogenic storage tanks, the vacuuming process takes a long time, sometimes several months or even longer. If a heating vacuuming method is used, a heating room needs to be built on-site, which is costly. Furthermore, vacuuming requires a lot of vacuuming equipment, making the operation more complex and the operating costs higher. Summary of the Invention

[0004] One object of the present invention is to overcome the shortcomings of the prior art and provide a vertical cryogenic storage tank device that can shorten the construction cycle and reduce the cost.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A vertical cryogenic storage tank device, comprising:

[0007] Inner tank, used for storing the medium;

[0008] A bracket, located at the bottom of the inner tank, is used to support the inner tank;

[0009] An insulated container is placed on the outside of the inner container, the inner container is housed inside the insulated container, a first interlayer is formed between the insulated container and the inner container, and a first insulation layer is provided in the first interlayer;

[0010] An outer can is placed over the outside of the insulated can, and a second interlayer is formed between the outer can and the insulated can, with a second insulation layer inside the second interlayer;

[0011] An inflation tube is located within the second interlayer. The inflation tube continuously introduces dry protective gas into the second interlayer, filling it with such gas that the pressure within the second interlayer is greater than the ambient pressure.

[0012] In one exemplary embodiment, the inflation tube is disposed around the second interlayer and is disposed near the bottom of the second interlayer.

[0013] In one exemplary embodiment, the top of the bracket abuts against and supports the outer side wall of the inner tank, and the bracket is disposed within the first interlayer, with the first insulation layer covering the outer side of the bracket.

[0014] In one exemplary embodiment, the support includes a plurality of pillars, a first insulation block and a second insulation block, the first insulation block separating the pillars and being located within the first interlayer, the second insulation block being disposed at the bottom of the pillars and used to isolate the bottom of the pillars.

[0015] In an exemplary embodiment, the insulated container includes an insulated cylinder, an insulated cover, and an insulated base plate. The insulated cover is located at the top of the insulated cylinder, and the insulated base plate is located at the bottom of the insulated cylinder. The insulated cover is arc-shaped.

[0016] In an exemplary embodiment, the outer can includes an outer cylinder and an outer top cover, the outer top cover being disposed on the top of the outer cylinder and being arc-shaped.

[0017] In one exemplary embodiment, a protective gas source is further included, which is connected to the inflation tube and is used to continuously supply the protective gas to the inflation tube.

[0018] In one exemplary embodiment, the first insulation layer is a foam glass layer, and the second insulation layer is a pearlescent sand layer, an elastic cotton layer, and an aluminum foil layer.

[0019] In one exemplary embodiment, the system further includes a base layer and an insulation layer disposed on the base layer. The base layer supports the outer tank and the bracket, and the insulation layer is located inside the outer tank, supporting the insulated tank.

[0020] In one exemplary embodiment, the system further includes a first anchor belt and a second anchor belt, wherein the first anchor belt connects the insulated tank to the insulation layer, and the two ends of the second anchor belt connect the outer tank to the base layer, respectively.

[0021] In one exemplary embodiment, the air pressure within the second interlayer is less than 1.01 times the ambient air pressure.

[0022] As can be seen from the above technical solution, the present invention has at least the following advantages and positive effects:

[0023] The aforementioned vertical cryogenic storage tank device includes an insulated tank.

[0024] A first insulation layer is installed between the inner tank and the insulated tank. A second insulation layer is installed between the outer tank and the insulated tank. The first insulation layer can be made of foam glass, while the second insulation layer can be made of materials such as perlite, elastic cotton, or aluminum foil. Furthermore, a dry protective gas is filled into the second interlayer between the outer tank and the insulated tank to effectively prevent external moisture from entering, ensuring the insulation effect of both the first and second insulation layers. Therefore, the second interlayer of this vertical cryogenic storage tank device does not require vacuuming, yet still meets the requirements for non-destructive storage time, reducing the manufacturing time of the vertical cryogenic storage tank device, shortening the manufacturing cycle, improving construction efficiency, and saving construction costs.

[0025] Furthermore, the aforementioned vertical cryogenic storage tank device, through the dual insulation effect of the first and second insulation layers, can ensure that less cold energy is transferred from the inner tank to the outer tank, thereby reducing condensation on the surface of the outer tank and enabling the valve structure on the outer side of the outer tank to maintain normal operation and improving the service life of the valve structure. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a vertical cryogenic storage tank device according to one embodiment.

[0027] The annotations in the attached figures are explained as follows:

[0028] 11. Base layer; 12. Support frame; 121. Column; 122. First insulation block; 123. Second insulation block; 124. Anchor; 125. Curved contact surface;

[0029] 13. Inner tank; 131. Filling port; 132. Discharge port; 133. Pipeline; 134. Insulation pipe;

[0030] 14. Insulated container; 141. Insulated cylinder; 142. Insulated cover; 143. Insulated base plate; 144. First anchor belt; 15. Outer container; 151. Outer cylinder; 152. Outer top cover; 153. Second anchor belt;

[0031] 16. Inflation pipe; 17. Insulation layer; 18. First insulation layer; 19. Second insulation layer;

[0032] 21. First interlayer; 22. Second interlayer. Detailed Implementation

[0033] Typical embodiments embodying 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 variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit the present invention.

[0034] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back) are merely for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0035] This embodiment provides a vertical cryogenic storage tank device. This vertical cryogenic storage tank device can be used to store liquid hydrogen, liquid helium, liquid oxygen, etc., and the storage medium of the storage tank device is not limited here.

[0036] The vertical cryogenic storage tank device of this embodiment is a large-scale storage tank device with a storage volume of 5,000 cubic meters or even larger, and it occupies a large building area. Due to the large size of each component of the vertical cryogenic storage tank device, and limited by transportation conditions, each component needs to be constructed on-site at the building location. The construction and assembly of large components must meet the requirement of ease of manufacturing.

[0037] Please see Figure 1 The vertical cryogenic storage tank device of this embodiment includes a base layer 11, a support 12, an inner tank 13, an insulated tank 14, an outer tank 15, and an air filling pipe 16.

[0038] The foundation layer 11 can be a reinforced concrete structure to provide foundation support. Due to the large weight of this vertical cryogenic storage tank unit, the foundation layer 11 can form a strong foundation structure to ensure the stability of the entire vertical cryogenic storage tank unit.

[0039] The inner tank 13 is used for storing media. The inner tank 13 can be used to store liquid hydrogen, liquid helium, liquid oxygen, etc. The storage capacity of the inner tank 13 can reach 5000 cubic meters or even larger.

[0040] The inner tank 13 can be a spherical structure. The inner tank 13 can be made of materials such as austenitic stainless steel that can withstand temperatures down to -269℃. Due to the large size of the inner tank 13, the original components are difficult to transport by land; therefore, the inner tank 13 can be fabricated on-site at the construction site. The inner tank 13 can be a single-layer structure, and its fabrication process is relatively convenient and easy to implement. The inner tank 13 can be a spherical tank.

[0041] In other embodiments, the inner tank 13 can also be other shapes, such as an elliptical tank or a vertical tank. The specific shape of the inner tank 13 is not limited here, as long as it meets the storage requirements of the corresponding storage medium.

[0042] The support 12 is located at the bottom of the inner tank 13. The support 12 is used to support the inner tank 13. The support 12 is supported on the base layer 11. The support 12 bears the weight of the inner tank 13 and needs to be supported on the high-strength base layer 11.

[0043] The support 12 includes multiple pillars 121, a first insulation block 122, and a second insulation block 123. The bottom ends of the pillars 121 are supported on the base layer 11. Since the inner tank 13 containing the storage medium is relatively heavy, the support 12 supporting the inner tank 13 needs to be supported on the base layer 11 with high strength to ensure that the support 12 can remain stable.

[0044] The top of the support column 121 abuts against the outer side of the inner tank 13 to support the inner tank 13. Furthermore, the side of the top of the support column 121 is provided with an arc-shaped contact surface 125 that adapts to the outer side of the inner tank 13. This arc-shaped contact surface 125 can better maintain contact with the inner tank 13, allowing the support column 121 to stably support the inner tank 13. The top of the support column 121 can also be fixed to the outer surface of the inner tank 13 by welding.

[0045] Specifically, in this embodiment, the first heat insulation block separates the support column 121. The first heat insulation block 122 is located in the middle of the support column 121. The first heat insulation block 122 may include two steel plates and a fiberglass component, with the fiberglass component sandwiched between the two steel plates. The support column 121 can be welded together from the steel plates, thereby achieving a fixed connection between the first heat insulation block 122 and each segment of the support column 121. By placing the first heat insulation block 122 in the middle of the support column 121, the transmission of cold air between the upper and lower sections of the support column 121 can be blocked, preventing the cold air at the end of the support column 121 in contact with the inner tank 13 from being transferred to the area below the support column 121, thus reducing cold air loss.

[0046] The second insulation block 123 is located at the bottom of the support column 121. The second insulation block 123 is in contact with the base layer 11, preventing the support column 121 from directly contacting the base layer 11. Specifically, the second insulation block 123 can be fixedly mounted on the base layer 11 using anchor bolts 124 or similar means. The second insulation block 123 further isolates the end of the support column 121, preventing cold energy from being transferred from the bottom of the support column 121 to the base layer 11.

[0047] The structure of the second insulation block 123 is similar to that of the first insulation block 122, namely, it may include two opposing steel plates, with a fiberglass block sandwiched between the two steel plates. The support column 121 can be welded together with the steel plates, thereby achieving a partial fixed connection between the second insulation block 123 and the support column 121. It is understood that the fiberglass in the first insulation block 122 and the second insulation block 123 can also be replaced with other block-shaped insulation materials that have insulation properties and a certain degree of hardness.

[0048] The vertical cryogenic storage tank assembly also includes an insulation layer 17. The insulation layer 17 is positioned above the base layer 11. The insulation layer 17 covers the base layer 11, isolating it from cold air. The insulation layer 17 also supports the insulated tank 14 and isolates the cold air from the base layer 11, including the internal cold air of the insulated tank 14. The insulated tank 14 is lighter than the inner tank 13 and can be placed directly on the insulation layer 17. The insulation layer 17 can be made of materials such as foam glass bricks, fiberglass cloth, or waterproof asphalt felt.

[0049] The bottom end of the support column 121 and the second insulation block 123 are both located inside the insulation layer 17. The insulation layer 17 can provide insulation protection for the bottom end of the support column 121 and the second insulation block 123, preventing the loss of cold energy from the support column 121 and the second insulation block 123.

[0050] It is understandable that the insulation layer 17 can be omitted, in which case the insulated tank 14 can be directly installed on the base layer 11. Then, the support 12 is located within the first interlayer 21, and the first insulation layer 18 covers the outside of the support 12. The insulated tank 14 is placed over the outside of the inner tank 13. Since the insulated tank 14 is close to the inner tank 13, a significant amount of cold air is transferred to it, requiring the use of materials with high low-temperature resistance. The insulated tank 14 can be made of materials such as austenitic stainless steel that can withstand temperatures down to -196℃.

[0051] The insulated tank 14 includes an insulated cylinder 141, an insulated cover 142, and an insulated base plate 143. The insulated cylinder 141 has a cylindrical structure. The insulated cover 142 is located on top of the insulated cylinder 141 and is arc-shaped. The insulated cover 142 can be domed or spherical. The insulated base plate 143 is located at the bottom of the insulated cylinder 141 and is circular. Therefore, the insulated tank 14 can be fabricated on-site, making the fabrication process relatively convenient. It can also be directly formed on the outside of the inner tank 13, facilitating fabrication and shortening the construction period.

[0052] The insulated tank 14 is placed on the insulation layer 17. The insulation base plate 143 is laid on the insulation layer 17, which can isolate the insulation layer 17 from the internal space of the insulated tank 14.

[0053] The inner tank 13 is housed within the insulated tank 14. A first interlayer 21 is formed between the insulated tank 14 and the inner tank 13, and a first insulation layer 18 is provided within the first interlayer 21. The first insulation layer 18 completely fills the first interlayer 21, and the shape of the first insulation layer 18 is the spatial shape of the first interlayer 21. The first insulation layer 18 is a foam glass layer. The first insulation layer 18 is typically made of foam glass insulation material that can withstand temperatures down to -269℃. Foam glass insulation layers have good filling properties, good insulation effects, and are relatively easy to operate with a short construction period. It can be understood that the first insulation layer 18 can also be other foam insulation layers.

[0054] Furthermore, the support 12 is disposed within the first interlayer 21. The first insulation layer 18 covers the outer side of the support 12. The bottom end of the support 12 is supported on the base layer 11, and the top end of the support 12 is connected to the inner tank 13. Since the top end of the support 12 is in contact with the inner tank 13, the support 12 is embedded within the first insulation layer 18. The first insulation layer 18 can keep the portion of the support 12 located within the first interlayer 21 cool, minimizing the transfer and dissipation of cold energy through the support 12.

[0055] Therefore, the first insulation layer 18 can cover the entire outer surface of the inner tank 13, and the first insulation layer 18 and the heat insulation layer 17 can cover the outer side of the support 12, which can play a role in heat preservation, isolate cold energy, retain the cold energy of the inner tank 13 to the greatest extent, and reduce cold energy leakage.

[0056] Furthermore, the insulation tank 14 also includes a first anchor band 144, with its two ends connecting the insulation tank 14 to the insulation layer 17, respectively. The first anchor band 144 can be a steel plate. Multiple steel plates can be spaced apart and evenly distributed around the periphery of the insulation tank 14. The first anchor band 144 is used to fix the insulation tank 14 and enhance its installation strength.

[0057] The outer can 15 is fitted over the outside of the insulated container 14. The outer can 15 includes an outer cylinder 151 and an outer top cover 152. The outer top cover 152 is located on top of the outer cylinder 151. The outer top cover 152 can be arc-shaped. For example, the outer top cover 152 can adopt an arched or spherical structure. The arc-shaped outer top cover 152 can increase the pressure resistance of the outer can 15 and enable it to withstand air pressure.

[0058] The outer cylinder 151 and outer top cover 152 of the outer tank 15 can be made of materials that can withstand ambient temperatures, such as carbon steel, low alloy steel, etc., for example, low alloy high strength steels like Q345R and 16MnDR. Therefore, the outer tank 15 can be manufactured by welding, splicing, or other methods using the aforementioned steel materials.

[0059] The insulation layer 17 is located inside the outer tank 15. The insulation layer 17 also isolates the internal space of the outer tank 15 from the base layer 11, reducing the transfer of cold energy from the outer tank 15 to the base layer 11 and preventing cold energy loss. Furthermore, the outer tank 15 houses the insulation layer 17, providing insulation protection for the insulation layer 17 and preventing external humid gases from entering the insulation layer 17.

[0060] The outer tank 15 is made of steel, ensuring high sealing performance and facilitating on-site construction. The outer tank 15 is built above the foundation layer 11, which supports it. A second anchor band 153 is provided between the outer tank 15 and the foundation layer 11. The second anchor band 153 is used to fix the outer tank 15 and enhance its installation strength. The second anchor band 153 can be made of steel plate. Multiple steel plates can be spaced apart and evenly distributed around the perimeter of the outer tank 15.

[0061] A second interlayer 22 is formed between the outer tank 15 and the insulated tank 14, and a second insulation layer 19 is provided within the second interlayer 22. The second insulation layer 19 can be made of materials such as pearlescent sand, elastic cotton, or aluminum foil. Because the second insulation layer 19 is made of insulation materials such as pearlescent sand, elastic cotton, and aluminum foil, there can be certain gaps between the insulation materials, reducing construction requirements, making it easier to manufacture, and shortening the construction period. The design pressure of the outer tank 15 does not exceed 1 kPa.

[0062] An inflation pipe 16 is located within the second interlayer 22. Dry protective gas is continuously introduced into the second interlayer 22 through the inflation pipe 16. The protective gas fills the second interlayer 22, making the air pressure within the second interlayer 22 slightly higher than the ambient air pressure. Since there are certain gaps in the insulation material of the second insulation layer 19, the protective gas can fill these gaps to improve the insulation effect of the second insulation layer 19. The air pressure within the second interlayer 22 is greater than the ambient air pressure but less than 1.01 times the ambient air pressure. Specifically, in this embodiment, the ambient air pressure can be standard atmospheric pressure, so the air pressure within the second interlayer 22 is less than 1.01 standard atmospheres. Therefore, the air pressure within the second interlayer 22 ensures better isolation of humid gases while also keeping construction costs low.

[0063] The inflation tube 16 is arranged around the second interlayer 22 and is located near the bottom of the second interlayer 22. The inflation tube 16 can be arranged around the second interlayer 22, and the protective gas that can be filled into the inflation tube 16 can be a dry inert gas, dry nitrogen, etc.

[0064] The protective gas introduced through the inflation pipe 16 can fill and inflate the second interlayer 22, making the gas pressure in the second interlayer 22 slightly higher than the ambient air pressure. Since the outer tank 15 has sufficient strength to withstand the pressure generated by the injected protective gas, and because the outer tank 15 does not require strict sealing, a small amount of leakage of the protective gas is permissible. Therefore, the continuous introduction of protective gas through the inflation pipe 16 ensures the adequate filling amount of the protective gas in the second interlayer 22, thereby maintaining a positive pressure within the second interlayer 22 to better isolate external humid gases and guarantee the insulation effect of the second insulation layer 19. Furthermore, compared to traditional outer tanks that require vacuuming, the outer tank 15 in this embodiment has lower requirements for airtightness and is easier to manufacture. Moreover, inflating the second interlayer 22 through the inflation pipe 16 avoids the use of complex vacuuming equipment, thus shortening construction time and reducing equipment costs.

[0065] Specifically, in this embodiment, the vertical cryogenic storage tank device also includes a protective gas source (not shown), which is connected to the filling pipe 16 and is used to continuously supply protective gas to the filling pipe 16. The protective gas source can be a gas storage tank or a gas source interface, etc., and must be able to provide a continuous and stable dry protective gas to the filling pipe 16. The dry protective gas can effectively reduce the entry of external moisture into the outer tank 15.

[0066] Furthermore, the inflation pipe 16 is equipped with a flow control valve (not shown in the figure), which controls the flow rate of the protective gas to maintain a balance between the amount of protective gas injected per unit time and the amount of protective gas lost from the outer tank 15.

[0067] Furthermore, the air inflator 16 can be a double-insulated pipe, which can minimize the conduction of cold energy from the second insulation layer 19 through the air inflator 16.

[0068] The inner tank 13 has a filling port 131 at the top and a discharge port 132 at the bottom. The filling port 131 and discharge port 132 are respectively connected to pipes 133, thereby enabling the filling and discharging of materials into the inner tank 13. The pipes 133 are embedded within the first insulation layer 18 and pass through the second insulation layer 19 to connect with the outside. When the pipes 133 pass through the insulated tank 14, the second insulation layer 19, and the outer tank 15, the pipes 133 are embedded within an insulated pipe 134. The insulated pipe 134 provides insulation and structural support, serving to insulate and protect the pipes 133.

[0069] In this embodiment of the vertical cryogenic storage tank device, an insulated tank 14 is provided, and a first insulation layer 18 is provided between the inner tank 13 and the insulated tank 14. A second insulation layer 19 is provided between the outer tank 15 and the insulated tank 14. The first insulation layer 18 can be insulated using a foam glass layer, and the second insulation layer 19 can be insulated using materials such as a pearlescent sand layer, an elastic cotton layer, or an aluminum foil layer. Furthermore, dry protective gas is injected into the second interlayer 22 between the outer tank 15 and the insulated tank 14 through an air filling pipe 16, so that the air pressure in the second interlayer 22 is positive, which can effectively prevent external moisture from entering. Therefore, the second interlayer 22 of this vertical cryogenic storage tank device does not need to be evacuated, and the non-destructive storage time requirement of the storage tank can still be met, reducing the manufacturing time of the vertical cryogenic storage tank device, shortening the manufacturing cycle, improving construction efficiency, and saving costs.

[0070] Furthermore, the aforementioned vertical cryogenic storage tank device, through the dual insulation effect of the first insulation layer 18 and the second insulation layer 19, can ensure that less cold energy is transferred from the inner tank to the outer tank, which can reduce the condensation on the surface of the outer tank 15, so that the valves and other components on the outside of the outer tank 15 can maintain normal operation and improve the service life of the valves and other components.

[0071] The above embodiments are merely illustrative examples of structures. The structures in each embodiment are not fixed combinations. In the absence of structural conflicts, the structures in multiple embodiments can be arbitrarily combined and used.

[0072] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many 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. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A vertical cryogenic storage tank device, characterized in that, include: Inner tank, used for storing the medium; A bracket, located at the bottom of the inner tank, is used to support the inner tank; An insulated container is placed on the outside of the inner container, the inner container is housed inside the insulated container, a first interlayer is formed between the insulated container and the inner container, and a first insulation layer is provided in the first interlayer; An outer can is placed over the outside of the insulated can, and a second interlayer is formed between the outer can and the insulated can, with a second insulation layer inside the second interlayer; An inflation tube is located within the second interlayer. The inflation tube continuously introduces dry protective gas into the second interlayer, filling it with such gas that the pressure within the second interlayer is greater than the ambient pressure.

2. The vertical cryogenic storage tank device according to claim 1, characterized in that, The inflation tube is arranged around the second interlayer and is located near the bottom of the second interlayer.

3. The vertical cryogenic storage tank device according to claim 1, characterized in that, The top of the bracket abuts against and supports the outer side wall of the inner tank, and the bracket is located in the first interlayer, with the first insulation layer covering the outer side of the bracket.

4. The vertical cryogenic storage tank device according to claim 1, characterized in that, The support includes multiple pillars, a first insulation block, and a second insulation block. The first insulation block separates the pillars and is located within the first interlayer. The second insulation block is located at the bottom of the pillars and is used to isolate the bottom of the pillars.

5. The vertical cryogenic storage tank device according to claim 1, characterized in that, The insulated container includes an insulated cylinder, an insulated cover, and an insulated base plate. The insulated cover is located at the top of the insulated cylinder, and the insulated base plate is located at the bottom of the insulated cylinder. The insulated cover is arc-shaped.

6. The vertical cryogenic storage tank device according to claim 1, characterized in that, The outer tank includes an outer cylinder and an outer top cover, the outer top cover being located on the top of the outer cylinder and being arc-shaped.

7. The vertical cryogenic storage tank device according to claim 1, characterized in that, It also includes a protective gas source, which is connected to the inflation tube and is used to continuously supply the protective gas to the inflation tube.

8. The vertical cryogenic storage tank device according to claim 1, characterized in that, The first insulation layer is a foam glass layer, and the second insulation layer is composed of a pearlescent sand layer, an elastic cotton layer, and an aluminum foil layer.

9. The vertical cryogenic storage tank device according to claim 1, characterized in that, It also includes a base layer and an insulation layer disposed on the base layer. The base layer supports the outer tank and the bracket. The insulation layer is located inside the outer tank and supports the insulated tank.

10. The vertical cryogenic storage tank device according to claim 9, characterized in that, It also includes a first anchor belt and a second anchor belt, the first anchor belt connecting the heat preservation tank and the heat insulation layer, and the two ends of the second anchor belt connecting the outer tank and the base layer, respectively.

11. The vertical cryogenic storage tank device according to claim 1, characterized in that, The air pressure inside the second interlayer is less than 1.01 times the ambient air pressure.

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