Liquid nitrogen storage tank with adjustable feet
Patent Information
- Application Number
- CN202522129911.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-09
AI Technical Summary
上述这种方式对于卧式的液氮储罐而言，由于其重心较低，稳定性足以满足使用需求，但对于立式的液氮储罐而言，其重心较高，存在因外界环境影响而意外倾倒的问题，如台风天、运输车意外碰撞等导致液氮储罐倾倒，因此，提升液氮储罐安装后的稳定性是很有必要的
[0014]上述技术方案的积极效果是：
Smart Images
Figure CN224771332U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas storage technology, specifically to a liquid nitrogen storage tank with adjustable feet. Background Technology
[0002] Nitrogen, as an inert gas, is chemically stable at room temperature and does not readily react, making it widely used in various fields. For example, it is used as a protective gas in welding operations to prevent oxidation or corrosion of the weld. It is also used as a filler and anti-oxidant gas in food processing, and as tire pressure gas to reduce the impact of external factors such as temperature, thus improving tire pressure stability. Currently, nitrogen is typically stored in liquid nitrogen tanks. When needed, the pressure is released to form gaseous nitrogen before use, making liquid nitrogen storage tanks crucial equipment in nitrogen applications. Furthermore, due to the high pressure characteristics of liquid nitrogen storage, it poses a significant safety hazard; therefore, improving the safety of liquid nitrogen storage tanks is a key focus for the industry.
[0003] Existing liquid nitrogen storage tanks are divided into large and small types. Large tanks are mainly used for liquid nitrogen storage in factory areas, while small tanks are generally used for liquid nitrogen storage by individual users. For large liquid nitrogen storage tanks, after the transport vehicle delivers liquid nitrogen to the factory area, it is filled into the storage tank. The liquid nitrogen is then depressurized through pipelines and delivered to various gas-using workstations, or filled into small tanks and transported to the gas-using workstations to realize the utilization of nitrogen. However, different factory environments have different requirements, and the space for placing large liquid nitrogen storage tanks varies. For ease of installation and subsequent replenishment, traditional large liquid nitrogen storage tanks are usually installed outside buildings, with a concrete base on the ground. The bottom of the liquid nitrogen storage tank is equipped with legs, which are used to install it onto the concrete base. For horizontal liquid nitrogen storage tanks, the above method provides sufficient stability due to their low center of gravity. However, for vertical liquid nitrogen storage tanks, the high center of gravity makes them susceptible to accidental tipping due to external environmental factors, such as typhoons or accidental collisions with transport vehicles. Therefore, improving the stability of liquid nitrogen storage tanks after installation is essential. Summary of the Invention
[0004] To address the aforementioned problems in existing technologies, this invention aims to provide a liquid nitrogen storage tank with adjustable support legs. Several telescopic support legs are hinged to the top of the vertical liquid nitrogen storage tank, and a flip-up plate is hinged to the bottom of the tank. The upper part of the flip-up plate can be selectively connected to or separated from the middle of the tank. When there is a wall beside the tank, the other end of the telescopic support leg can be installed on the wall and its extension and retraction can adapt to the installation distance, achieving multi-point support for the tank and improving installation stability. When there is no wall beside the tank, the flip-up plate can be unfolded and connected to the telescopic support legs to form a triangular support beside the tank. The flip-up plate expands the bottom contact area of the tank, and the telescopic support legs support the upper part of the tank, similarly improving the stability of the liquid nitrogen storage tank after installation and preventing accidental tipping due to external environmental factors when the center of gravity of the liquid nitrogen storage tank is high.
[0005] The specific technical solution is as follows: A liquid nitrogen storage tank with adjustable feet includes a tank body and feet. The bottom of the tank body has several feet evenly distributed. The tank has the following features: Several telescopic support legs, one end of which is hinged to the side wall of the upper part of the tank, and one telescopic support leg corresponds to one bottom foot; Several flip plates are provided, and each flip plate corresponds to a certain number of feet. The lower end of the flip plate is hinged to the corresponding foot. The upper end of the flip plate is provided with a first connecting part. The telescopic support foot is provided with a second connecting part at the end away from the tank body. At the same time, a third connecting part is provided on the outer wall of the middle part of the tank body. During installation, the first connecting part at the upper end of the flip plate is connected to either the second connecting part or the third connecting part.
[0006] In the aforementioned liquid nitrogen storage tank with adjustable feet, the lowest point of the tank bottom is higher than the lowest point of the feet.
[0007] The aforementioned liquid nitrogen storage tank with adjustable support legs includes a telescopic support leg comprising a main pipe, a telescopic rod, and a connecting nut. One end of the main pipe is hinged to the tank body, and a connecting nut is provided at the pipe opening at the other end of the main pipe. Meanwhile, one end of the telescopic rod is a screw rod that extends into the main pipe and is threadedly connected to the connecting nut.
[0008] The aforementioned liquid nitrogen storage tank with adjustable legs further includes a locking nut, which is threaded onto the screw of the telescopic rod. The locking nut is located on the end of the telescopic rod outside the main pipe and the connecting nut and abuts against the connecting nut.
[0009] The aforementioned liquid nitrogen storage tank with adjustable feet, wherein each foot is arranged outward at an angle relative to the axial direction of the tank body.
[0010] The liquid nitrogen storage tank with adjustable feet described above includes a first connecting part comprising a connecting plate with a plurality of connecting holes, which are countersunk holes, and the countersunk ends of the countersunk holes are located on the side of the connecting plate away from the tank body.
[0011] In the aforementioned liquid nitrogen storage tank with adjustable legs, the second connecting part includes a movable head and a contact plate. The movable head is installed on one end of the telescopic support leg, and the contact plate is disposed on the movable head. The contact plate is provided with a plurality of mounting holes, and the mounting holes correspond one-to-one with the connecting holes.
[0012] The aforementioned liquid nitrogen storage tank with adjustable legs includes a movable head comprising a sleeve, a T-shaped rod, and a swing rod. One end of the sleeve is connected to the end of the telescopic rod of the telescopic support foot away from the main pipe. The inner hole of the sleeve connected to the telescopic support foot is flared. The large end of the T-shaped rod is located inside the flare, and the small end extends out of the sleeve after passing through it. One end of the swing rod is hinged to the end of the T-shaped rod extending out of the sleeve, and the other end of the swing rod is connected to a contact plate.
[0013] The aforementioned liquid nitrogen storage tank with adjustable legs includes a third connecting part comprising a support plate and a docking plate. One end of the support plate is welded to the outer wall of the middle part of the tank body, and the other end of the support plate is welded to the docking plate, which has several docking holes corresponding to the connecting holes.
[0014] The positive effects of the above technical solution are: The aforementioned liquid nitrogen storage tank with adjustable legs has several telescopic support legs hinged to the upper part of the vertical liquid nitrogen storage tank body. At the same time, a flip-up plate is hinged to the bottom foot of the tank body. The upper part of the flip-up plate can selectively connect to the middle part of the tank body or the telescopic support legs. When there is a wall next to the tank body, the telescopic support legs can be installed on the wall. When there is no wall, the flip-up plate can be flipped down to contact the ground and connect with the telescopic support legs to form a triangular support structure. The plate can adapt to the installation distance through its own extension and contraction. It can adapt to different installation environments through different connection methods. By using the wall and the unfolded flip-up plate to expand the contact area with the ground, the stability of the liquid nitrogen storage tank after installation is improved, preventing accidental tipping caused by external environmental factors when the center of gravity of the liquid nitrogen storage tank is high. Attached Figure Description
[0015] Figure 1 This is a structural diagram of an embodiment of the liquid nitrogen storage tank with adjustable legs according to the present invention; Figure 2 for Figure 1 Enlarged view of section A; Figure 3 for Figure 1 Enlarged view of section B; Figure 4 for Figure 1Enlarged view of section C.
[0016] In the attached diagram: 1. Tank body; 11. Third connecting part; 111. Support plate; 112. Butt plate; 1121. Butt hole; 2. Base foot; 3. Telescopic support foot; 31. Second connecting part; 32. Main pipe; 33. Telescopic rod; 34. Connecting nut; 35. Locking nut; 311. Moving head; 312. Contact plate; 3111. Sleeve; 3112. T-shaped rod; 3113. Swing rod; 3121. Mounting hole; 4. Flip plate; 41. First connecting part; 411. Connecting plate; 4111. Connecting hole. Detailed Implementation
[0017] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following embodiments are provided in conjunction with the appendix. Figure 1 To be continued Figure 4 The technical solution provided by this utility model is described in detail, but the following content is not intended to limit this utility model.
[0018] Figure 1 This is a structural diagram of an embodiment of the liquid nitrogen storage tank with adjustable legs according to this utility model. Figure 1 As shown, the liquid nitrogen storage tank with adjustable feet provided in this embodiment includes: a tank body 1, feet 2, telescopic support feet 3, and a tilting plate 4. Like a conventional liquid nitrogen storage tank, several feet 2 are evenly distributed at the bottom of the tank body 1. The feet 2 provide support for the bottom of the tank body 1, allowing the tank body 1 to contact the ground or a base and be placed stably on the ground or a base.
[0019] Specifically, several telescopic support legs 3 are provided, and one end of each telescopic support leg 3 is hinged to the side wall of the upper part of the tank body 1. Each telescopic support leg 3 corresponds to a base foot 2, so that several telescopic support legs 3 are evenly distributed around the upper part of the tank body 1. Furthermore, the telescopic support legs 3 at different positions can support the upper part of the tank body 1 from different directions, improving the stability of the tank body 1 after installation. In addition, the telescopic support legs 3 hinged to the tank body 1 can adapt to different installation angles by rotation, and can meet different connection distances through their own telescopic movement, improving adaptability.
[0020] Specifically, several flip plates 4 are provided, and each flip plate 4 corresponds one-to-one with a number of base feet 2. The lower end of the flip plate 4 is hinged to the corresponding base foot 2, allowing the flip plate 4 to flip on the corresponding base foot 2. This enables the flip plate 4 to maintain its inclined support on the tank body 1, strengthening the connection between the base foot 2 and the tank body 1. It also allows the flip plate 4 to unfold downwards to contact the ground, expanding the contact area of the base foot 2 with the ground and improving the stability of the liquid nitrogen storage tank after installation. At this time, the upper end of the flip plate 4 is provided with a first connecting part 41, the end of the telescopic support foot 3 opposite to the tank body 1 is provided with a second connecting part 31, and a third connecting part 11 is provided on the outer wall of the middle part of the tank body 1. During installation, the first connecting part 41 at the upper end of the flip plate 4 can be connected to either the second connecting part 31 or the third connecting part 11, thereby realizing the connection and support of the flip plate 4 in different states and meeting different support requirements. During installation, if one side of the tank 1 is a building wall, the second connecting part 31 of the telescopic support foot 3 near the wall is installed on the wall, achieving a direct connection between the upper part of the tank 1 and the wall. This provides support for both the upper and lower parts of the tank 1, improving the stability of the liquid nitrogen storage tank after installation. Simultaneously, the first connecting part 41 of the tilting plate 4 near the wall connects to the third connecting part 11 in the middle of the tank 1, allowing the tilting plate 4 to be tilted between the base foot 2 and the tank 1, serving as an auxiliary support structure connecting the tank 1 and the base foot 2, further enhancing the stability of the liquid nitrogen storage tank after installation. Furthermore, the flip-up plate 4, which is not near the wall, flips down and unfolds to contact the ground or base. Simultaneously, the second connecting part 31 of the corresponding telescopic support leg 3 connects to the first connecting part 41 on the flip-up plate 4, allowing the tank 1, telescopic support leg 3, and flip-up plate 4 to form a triangular structure. This provides lateral support to the tank 1, and the flip-up plate 4 expands the ground contact area of the base foot 2, enhancing the support effect on the tank 1 on that side and further improving the stability of the liquid nitrogen storage tank after installation. It is worth noting that since the distance between the tank 1 and the wall is uncertain, and it is also uncertain whether the telescopic support leg 3 is connected to the wall or the flip-up plate 4, the telescopic support leg 3 adapts to changes in distance through its own extension and retraction, meeting the installation requirements in different scenarios.
[0021] More specifically, the lowest point of the bottom of tank 1 is higher than the lowest point of foot 2, creating a height difference between the bottom of tank 1 and the bottom of foot 2. This allows for a clearance between the bottom of tank 1 and the ground, preventing corrosion of the tank 1 due to ground environmental factors. It also provides space for the installation and operation of structures such as pressure relief valves at the bottom of tank 1, resulting in a more rational structural design.
[0022] More specifically, the telescopic support leg 3 includes a main pipe 32, a telescopic rod 33, and a connecting nut 34. One end of the main pipe 32 is hinged to the tank body 1 to meet the usage requirements of the telescopic support leg 3 deflecting on the tank body 1. Furthermore, a connecting nut 34 is provided at the other end of the main pipe 32. Preferably, the connecting nut 34 is welded to the main pipe 32. Meanwhile, one end of the telescopic rod 33 is a screw, which extends into the main pipe 32 and is threadedly connected to the connecting nut 34. This allows the telescopic rod 33 to move axially within the main pipe 32 when the screw is rotated, enabling the telescopic rod 33 to extend or retract relative to the main pipe 32, thereby adjusting the length of the telescopic support leg 3.
[0023] More specifically, the telescopic support foot 3 also includes a locking nut 35. The locking nut 35 is threaded onto the threaded rod of the telescopic rod 33, allowing it to rotate on the threaded rod. Simultaneously, the locking nut 35 is located at the end of the telescopic rod 33 outside the main pipe 32 and the connecting nut 34, and abuts against the connecting nut 34. In use, after the telescopic rod 33 is adjusted to its proper position relative to the main pipe 32, the locking nut 35 is tightened, causing it to abut against the connecting nut 34. The connecting nut 34 and the locking nut 35 form a double-nut locking structure, effectively preventing the telescopic rod 33 from extending or retracting relative to the main pipe 32, thus improving the stability and reliability of the telescopic support foot 3 after adjustment.
[0024] More specifically, each foot 2 is arranged outward at an angle relative to the axial direction of the tank body 1, which allows the foot 2 to increase the contact area of the tank body 1 with the ground and provide a larger support surface, thereby improving the stability of the tank body 1. In addition, it also allows the bottom of the foot 2 to extend to the outer side wall of the tank body 1 in the vertical projection direction, providing conditions for the upper end of the subsequent flip plate 4 to form an inclined triangular support structure when connected to the tank body 1.
[0025] Figure 2 for Figure 1 An enlarged view of part A in the image. (See image below.) Figure 1 and Figure 2 As shown, the first connecting part 41 on the flip plate 4 includes a connecting plate 411. Several connecting holes 4111 are provided on the connecting plate 411, through which the plate connects to the tank body 1 or the telescopic support leg 3. The connecting holes 4111 are countersunk holes, with the countersunk end located on the side of the connecting plate 411 away from the tank body 1. This allows the ends of the connecting bolts to be hidden through the countersunk end of the connecting holes 4111 after the flip plate 4 is flipped down and unfolded, thus maintaining the flatness of the bottom surface of the connecting plate 411 and achieving stable contact with the ground or base, further improving the stability of the liquid nitrogen storage tank after installation.
[0026] Figure 3 for Figure 1 A magnified view of section B. (See image below.) Figure 1 and Figure 3 As shown, the second connecting part 31 on the telescopic support leg 3 includes a movable head 311 and a contact plate 312. At this time, the movable head 311 is installed on the end of the telescopic rod 33 of the telescopic support leg 3 away from the main pipe 32, and the contact plate 312 is set on the movable head 311. That is, the contact plate 312 is connected to the telescopic support leg 3 through the movable head 311. At this time, the contact plate 312 is provided with a plurality of mounting holes 3121, which correspond one-to-one with the connecting holes 4111. This allows the telescopic support leg 3 to be installed on the wall by connecting the mounting holes 3121 with the expansion screws on the wall. When the second connecting part 31 is connected to the first connecting part 41, the mounting holes 3121 on the contact plate 312 are connected to the connecting holes 4111 on the connecting plate 411 by connecting bolts, thereby connecting the telescopic support leg 3 to the flip plate 4. In addition, the movable head 311 enables the contact plate 312 to change direction relative to the telescopic support foot 3, allowing the contact plate 312 to fit tightly against the wall or connecting plate 411, resulting in a more reasonable structural design.
[0027] More specifically, the movable head 311 includes a sleeve 3111, a T-shaped rod 3112, and a swing rod 3113. During installation, one end of the sleeve 3111 is connected to the end of the telescopic rod 33 of the telescopic support foot 3 that is away from the main pipe 32. The inner hole of the end of the sleeve 3111 connected to the telescopic support foot 3 is flared. The large end of the T-shaped rod 3112 is located inside the flare, and the small end passes through the sleeve 3111 and extends to the outside of the sleeve 3111. The connection between the T-shaped rod 3112 and the sleeve 3111 is achieved through the interaction between the large end of the T-shaped rod 3112 and the flare, and the T-shaped rod 3112 can rotate within the sleeve 3111. Preferably, the flare is a bowl-shaped structure, and the large end of the T-shaped rod 3112 is a spherical structure, so that the large end of the T-shaped rod 3112 can have a larger contact area with the flare, making the connection more reliable and the rotation smoother. In addition, one end of the swing rod 3113 is hinged to the end of the T-shaped rod 3112 extending outside the sleeve 3111, and the other end of the swing rod 3113 is connected to the contact plate 312. This allows for adjustment of the circumferential installation angle of the contact plate 312 relative to the telescopic support foot 3 through the cooperation of the T-shaped rod 3112 and the sleeve 3111. Simultaneously, the swing rod 3113 enables axial tilting of the contact plate 312 relative to the telescopic support foot 3. Combined, these two mechanisms allow for adjustments to various installation angles of the contact plate 312, meeting the requirements for installation on walls and flip-up panels 4. It is worth noting that when the sleeve 3111 is installed on the telescopic rod 33 of the telescopic support foot 3, the T-shaped rod 3112 can be passed through the sleeve 3111 first, and then the sleeve 3111 can be welded to the telescopic rod 33 of the telescopic support foot 3, thus enabling the installation of the movable head 311 on the telescopic support foot 3.
[0028] Figure 4 for Figure 1 A magnified view of section C. (See image below.) Figure 1 and Figure 4 As shown, the third connecting part 11 on the tank body 1 includes a support plate 111 and a docking plate 112. One end of the support plate 111 is welded to the outer wall of the middle part of the tank body 1, and the other end of the support plate 111 is welded to the docking plate 112. The docking plate 112 has several docking holes 1121 that correspond one-to-one with the connecting holes 4111, so that when the upper end of the flip plate 4 is connected to the middle part of the tank body 1, the connection can be achieved by passing bolts through the docking holes 1121 and the connecting holes 4111, making disassembly and assembly more convenient.
[0029] The liquid nitrogen storage tank with adjustable feet provided in this embodiment includes a tank body 1, base feet 2, telescopic support feet 3, and a flip plate 4. Several telescopic support feet 3 are hinged to the upper part of the tank body 1, and a flip plate 4 is hinged to the base feet 2 at the lower part of the tank body 1. The upper part of the flip plate 4 can selectively connect to the middle of the tank body 1 or the telescopic support feet 3. When there is a wall on the side of the tank body 1, the upper part of the flip plate 4 connects to the middle of the tank body 1, while the telescopic support feet 3 are connected to the wall. When there is no wall, the flip plate 4 can be flipped down to contact the ground and connect to the telescopic support feet 3. The telescopic support feet 3 and the flip plate 4 form a triangular support for the tank body 1, expanding the contact area with the ground and improving installation stability. This allows for different connection methods to be selected for installation in different installation environments, preventing accidental tipping due to external environmental factors when the liquid nitrogen storage tank has a high center of gravity, and improving the stability of the liquid nitrogen storage tank after installation.
[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A liquid nitrogen storage tank with adjustable feet, comprising a tank body and feet, the bottom of the tank body is uniformly distributed with several feet, characterized in that, Also includes: A plurality of telescopic support legs, one end of which is hinged to the side wall of the upper part of the tank body, and one telescopic support leg corresponds to one bottom foot; A plurality of flip plates are provided, each of which corresponds to a plurality of base feet. The lower end of each flip plate is hinged to the corresponding base foot. A first connecting part is provided at the upper end of each flip plate. A second connecting part is provided at the end of each telescopic support foot away from the tank body. At the same time, a third connecting part is provided on the outer wall of the middle part of the tank body. During installation, the first connecting part at the upper end of the flip plate is connected to either the second connecting part or the third connecting part.
2. The liquid nitrogen storage tank with adjustable feet of claim 1, wherein, The lowest point of the bottom of the tank is higher than the lowest point of the foot.
3. The liquid nitrogen storage tank with adjustable feet of claim 1, wherein, The telescopic support leg includes a main pipe, a telescopic rod, and a connecting nut. One end of the main pipe is hinged to the tank body, and the connecting nut is provided at the opening of the other end of the main pipe. Meanwhile, one end of the telescopic rod is a screw rod, which extends into the main pipe and is threadedly connected to the connecting nut.
4. The liquid nitrogen storage tank with adjustable feet of claim 3, wherein, It also includes a locking nut, which is threaded onto the screw of the telescopic rod. The locking nut is located on the end of the telescopic rod outside the main tube and the connecting nut and abuts against the connecting nut.
5. The liquid nitrogen storage tank with adjustable feet of claim 1, wherein, Each of the aforementioned feet is arranged outward at an angle relative to the axial direction of the tank body.
6. The liquid nitrogen storage tank with adjustable legs according to claim 1, characterized in that, The first connecting part includes a connecting plate, which has a plurality of connecting holes. The connecting holes are countersunk holes, and the countersunk ends of the countersunk holes are located on the side of the connecting plate away from the tank body.
7. The liquid nitrogen storage tank with adjustable feet of claim 6, wherein, The second connecting part includes a movable head and a contact plate. The movable head is installed on one end of the telescopic support leg, and the contact plate is disposed on the movable head. The contact plate is provided with a plurality of mounting holes, and the mounting holes correspond one-to-one with the connecting holes.
8. The liquid nitrogen storage tank with adjustable legs according to claim 7, characterized in that, The movable head includes a sleeve, a T-shaped rod, and a swing rod. One end of the sleeve is connected to one end of the telescopic support foot. The inner hole of the sleeve connected to the telescopic support foot is flared. The large end of the T-shaped rod is located inside the flared end, and the small end passes through the sleeve and extends to the outside of the sleeve. One end of the swing rod is hinged to the end of the T-shaped rod extending to the outside of the sleeve, and the other end of the swing rod is connected to the contact plate.
9. The liquid nitrogen storage tank with adjustable feet of claim 6, wherein, The third connecting part includes a support plate and a docking plate. One end of the support plate is welded to the outer wall of the middle part of the tank, and the other end of the support plate is welded to the docking plate. The docking plate is provided with a plurality of docking holes that correspond one-to-one with the connecting holes.