Storage device for liquid nitrogen

Abstract

The utility model discloses a liquid nitrogen storage device, and relates to the technical field of mechanical engineering. A liquid nitrogen storage device comprises a supporting base and a storage tank, a reinforcing assembly is arranged on the supporting base and comprises two reinforcing mounting plates, two mounting bases, four protective shells and a plurality of reinforcing ribs, and the two reinforcing mounting plates are inserted into reinforcing mounting plate grooves in the outer wall of the storage tank through the reinforcing assembly correspondingly; as the cambered surface of a reinforcing mounting plate is attached to the inner wall of a reinforcing mounting plate groove, at the moment, a mounting seat at the lower end of the reinforcing mounting plate is located in a mounting seat groove in a supporting base, and then a rotating threaded rod sleeve on the outer wall of a protective shell is rotated, so that a rotating threaded rod is driven by the rotating threaded rod sleeve to move in the direction of a T-shaped block; and a threaded rod is rotated to push a limiting block to gradually extend into a second limiting block groove, so that firm fixation of the reinforcing mounting plate, the mounting seat, the supporting base and the storage tank is realized, and the stability of the storage tank is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a liquid nitrogen storage device. Background Technology

[0002] Liquid nitrogen, as an important medium in the cryogenic field, is widely used in biological sample preservation, food quick-freezing, and metal material processing. Since the boiling point of liquid nitrogen is as low as -196℃, its storage and storage devices must have good thermal insulation performance and safety stability. At present, liquid nitrogen storage devices generally adopt a double-layer vacuum insulation structure. The inner tank is made of low-temperature resistant metal material to resist the extremely low temperature environment, while the outer tank plays a protective and thermal insulation role.

[0003] In actual use, existing liquid nitrogen storage devices are often subjected to vibration and impact during transportation due to road bumps and collisions, causing the tank to bear significant external forces. During frequent filling and draining operations, the pressure fluctuations inside the tank also cause continuous stress on the tank structure. Traditional tank structures rely solely on the strength of the materials themselves and lack targeted reinforcement designs. Long-term use can easily lead to problems such as tank deformation and weld cracking, which in turn can cause the vacuum interlayer to fail, accelerate liquid nitrogen evaporation, and even cause safety accidents such as liquid nitrogen leakage. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a liquid nitrogen storage device that can solve the problem that during the transportation of liquid nitrogen storage devices, vibrations and impacts caused by road bumps and collisions during handling often cause the tank body to bear a large external force. Thus, during frequent filling and draining operations, the pressure fluctuations inside the tank will also cause continuous stress on the tank structure. Traditional tank structures rely only on the strength of the material itself and lack targeted reinforcement design. Long-term use is prone to problems such as tank deformation and weld cracking, which in turn leads to the failure of the vacuum jacket seal, accelerates the evaporation of liquid nitrogen, and even causes safety accidents such as liquid nitrogen leakage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a liquid nitrogen storage device, comprising a support base and a storage tank, wherein a reinforcing component is provided on the support base;

[0006] The reinforcement assembly includes two reinforcement mounting plates, two mounting bases, four protective shells, and multiple reinforcing ribs. The multiple reinforcing ribs are fixedly installed on the outer walls of the two reinforcement mounting plates. Two reinforcement mounting plate slots are opened on the outer wall of the storage tank. Two mounting bases are fixedly connected to the lower ends of the corresponding reinforcement mounting plates. The storage tank is fixedly installed on the upper surface of the support base. Mounting base slots are opened on both sides of the upper outer wall of the support base. Four protective shells are fixedly connected to both sides of the upper outer wall of the support base. T-blocks are fixedly connected to both sides of the outer wall of the two mounting bases.

[0007] Among them, T-shaped block grooves are opened on both sides of the inner wall of the two mounting seat grooves, and first limiting block grooves are opened inside the four T-shaped block grooves. Limiting blocks are slidably connected inside the four first limiting block grooves. Rotating threaded rod sleeves are rotatably connected to the outer wall of the four protective shells. Conical block grooves are opened on both sides of the inner wall of the four first limiting block grooves. Rotating threaded rods are provided inside the four first limiting block grooves. Second limiting block grooves are opened on the outer wall of the four T-shaped blocks.

[0008] Preferably, one side of both reinforcing mounting plates is curved, and the two reinforcing mounting plates are slidably connected to the interior of the corresponding reinforcing mounting plate groove;

[0009] Multiple reinforcing ribs form a reinforcement area on the outer wall of the two reinforcement mounting plates, and the outer curved surface of the two reinforcement mounting plates contacts the inner wall of the corresponding reinforcement mounting plate groove.

[0010] Preferably, the outer walls of the two mounting seats are slidably connected to the interior of the corresponding mounting seat grooves, and the outer walls of the four T-blocks are slidably connected to the interior of the corresponding T-block grooves.

[0011] The interiors of the four protective shells are connected to the interiors of the corresponding first limiting block grooves.

[0012] Preferably, the four rotating threaded rod sleeves extend into the interior of the protective shell at the end closest to the protective shell, and the outer walls of the conical blocks on both sides of the four limiting blocks are slidably connected to the interior of the corresponding conical block grooves.

[0013] The four rotating threaded rods are rotatably connected to the outer wall of the corresponding limit block at one end near the limit block.

[0014] Preferably, the ends of the four limiting blocks near the second limiting block grooves all slide into the interior of the T-shaped block grooves and are respectively slidably connected to the interior of the corresponding second limiting block grooves;

[0015] The outer wall of the end of each of the four rotating threaded rods away from the limiting block is respectively connected to the internal thread of the corresponding rotating threaded rod sleeve.

[0016] Preferably, a feed pipe is installed on the upper surface of the storage tank, the inside of the feed pipe is in communication with the inside of the storage tank, and a discharge pipe is installed on the lower outer wall of the storage tank;

[0017] The discharge pipe is connected to the storage tank, and the two mounting bases are arc-shaped on the side away from the reinforcing mounting plate, with multiple reinforcing ribs arranged horizontally.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This liquid nitrogen storage device uses a reinforcement assembly to insert two reinforcement mounting plates into the reinforcement mounting plate grooves on the outer wall of the storage tank. Since the curved surface of the reinforcement mounting plate fits against the inner wall of the reinforcement mounting plate groove, the mounting seat at the lower end of the reinforcement mounting plate is inside the mounting seat groove on the support base. Then, rotating the threaded sleeve on the outer wall of the protective shell causes the threaded rod to move towards the T-shaped block under the drive of the threaded sleeve. The threaded rod pushes the limiting block to gradually extend into the second limiting block groove. Simultaneously, the conical blocks on both sides of the threaded rod tightly engage with the conical block groove, firmly locking the T-shaped block. This achieves a firm fixation of the reinforcement mounting plate, mounting seat, support base, and storage tank, enhancing the stability of the storage tank and preventing problems such as tank deformation and weld cracking that may occur with long-term use. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the external structure of the mounting plate of this utility model;

[0023] Figure 3 This is a schematic diagram of the external structure of the limiting block of this utility model;

[0024] Figure 4 This utility model Figure 3 A structural schematic diagram of the enlarged view at point A in the middle.

[0025] Reference numerals: 1. Support base; 2. Rotating threaded rod sleeve; 3. Protective shell; 4. Storage tank; 5. Feed pipe; 6. Reinforcing mounting plate; 7. Reinforcing rib; 8. T-block groove; 9. T-block; 10. Reinforcing mounting plate groove; 11. Discharge pipe; 12. Mounting seat; 13. Mounting seat groove; 14. First limit block groove; 15. Limit block; 16. Rotating threaded rod; 17. Conical block groove; 18. Second limit block groove. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a liquid nitrogen storage device, including a support base 1 and a storage tank 4;

[0031] The support base 1 is equipped with a reinforcing component;

[0032] The reinforcement assembly includes two reinforcing mounting plates 6, two mounting bases 12, four protective shells 3, and multiple reinforcing ribs 7. The multiple reinforcing ribs 7 are fixedly installed on the outer walls of the two reinforcing mounting plates 6. One side of each of the two reinforcing mounting plates 6 is curved. Two reinforcing mounting plate grooves 10 are formed on the outer wall of the storage tank 4. The two reinforcing mounting plates 6 are slidably connected to the interior of the corresponding reinforcing mounting plate grooves 10. The multiple reinforcing ribs 7 form a reinforcement area on the outer walls of the two reinforcing mounting plates 6. The curved outer walls of the two reinforcing mounting plates 6 contact the inner walls of the corresponding reinforcing mounting plate grooves 10. The two mounting bases 12... 2. The storage tank 4 is fixedly connected to the lower end of the corresponding reinforcing mounting plate 6. The storage tank 4 is fixedly installed on the upper surface of the support base 1. The upper two outer walls of the support base 1 are provided with mounting slots 13. The outer walls of the two mounting seats 12 are slidably connected to the interior of the corresponding mounting slots 13. The four protective shells 3 are fixedly connected to the upper two outer walls of the support base 1. T-shaped blocks 9 are fixedly connected to the outer walls of the two mounting seats 12. T-shaped block grooves 8 are provided on the inner walls of the two mounting slots 13. The outer walls of the four T-shaped blocks 9 are slidably connected to the interior of the corresponding T-shaped block grooves 8. Each T-shaped slot 8 has a first limiting slot 14 inside. The interior of each of the four protective shells 3 communicates with the interior of the corresponding first limiting slot 14. Each of the four first limiting slots 14 has a limiting block 15 slidably connected inside. Each of the four protective shells 3 has a rotating threaded rod sleeve 2 rotatably connected to its outer wall. The end of each of the four rotating threaded rod sleeves 2 near the protective shell 3 extends rotatably into the interior of the protective shell 3. Each of the two inner walls of the four first limiting slots 14 has a conical slot 17. The outer walls of the conical blocks on both sides of the four limiting blocks 15 communicate with the interior of the corresponding conical slot 17. The sliding connection is provided. Each of the four first limiting block grooves 14 is provided with a rotating threaded rod 16. The end of each of the four rotating threaded rods 16 near the limiting block 15 is rotatably connected to the outer wall of the corresponding limiting block 15. The outer wall of each of the four T-shaped blocks 9 is provided with a second limiting block groove 18. The end of each of the four limiting blocks 15 near the second limiting block groove 18 slides into the interior of the T-shaped block groove 8 and is slidably connected to the interior of the corresponding second limiting block groove 18. The outer wall of the end of each of the four rotating threaded rods 16 away from the limiting block 15 is threadedly connected to the interior of the corresponding rotating threaded rod sleeve 2.

[0033] The storage tank 4 has an inlet pipe 5 installed on its upper surface, and the inside of the inlet pipe 5 is connected to the inside of the storage tank 4. The storage tank 4 has an outlet pipe 11 installed on its lower outer wall, and the inside of the outlet pipe 11 is connected to the inside of the storage tank 4. The two mounting seats 12 are arc-shaped on the side away from the reinforcing mounting plate 6, and multiple reinforcing ribs 7 are arranged horizontally.

[0034] Furthermore, when using the device, the two reinforcing mounting plates 6 are respectively inserted into the reinforcing mounting plate grooves 10 on the outer wall of the storage tank 4. Since the arc surface of the reinforcing mounting plate 6 fits against the inner wall of the reinforcing mounting plate groove 10, a tight connection is ensured. At this time, the mounting base 12 at the lower end of the reinforcing mounting plate 6 is aligned with the mounting base groove 13 on the support base 1. The mounting base 12 is pushed so that its outer wall slides in the mounting base groove 13. At the same time, the T-shaped blocks 9 on both sides of the mounting base 12 slide into the T-shaped block grooves 8, completing the initial positioning of the reinforcing component on the support base 1. Then, the device is rotated... The rotating threaded rod sleeve 2 on the outer wall of the dynamic protective shell 3, due to the threaded connection between the rotating threaded rod 16 and the rotating threaded rod sleeve 2, moves towards the T-shaped block 9 under the drive of the rotating threaded rod sleeve 2. The rotating threaded rod 16 pushes the limiting block 15, causing it to slide within the first limiting block groove 14 and the conical block groove 17. The end of the limiting block 15 near the T-shaped block 9 gradually extends into the second limiting block groove 18. As the limiting block 15 goes deeper, the conical blocks on both sides of it fit tightly with the conical block groove 17, firmly locking the T-shaped block 9, thereby achieving... The reinforcement mounting plate 6, mounting base 12, support base 1, and storage tank 4 are firmly fixed together, enhancing the stability of storage tank 4. Then, liquid nitrogen is delivered into storage tank 4 through the feed pipe 5 on the upper surface of storage tank 4. During the feeding process, due to the reinforcement components, storage tank 4 remains stable and will not shift due to the pressure and shaking generated by the liquid nitrogen injection. When liquid nitrogen is needed, the discharge pipe 11 at the lower end of storage tank 4 is opened, and liquid nitrogen flows out from the discharge pipe 11 under its own pressure or external auxiliary pressure. At this time, the reinforcement components continuously provide power to the storage tank. Storage tank 4 provides stable support to ensure safe discharge. When it is necessary to disassemble the reinforcing mounting plate 6 and reinforcing ribs, rotate the rotating threaded rod sleeve 2 on the outer wall of the protective shell 3 in the opposite direction. Rotate the threaded rod 16 to drive the limiting block 15 to move away from the T-block 9. The limiting block 15 exits from the second limiting block groove 18. After the limiting block 15 is completely disengaged from the second limiting block groove 18, the mounting seat 12 can be pulled out from the mounting seat groove 13. At the same time, the reinforcing mounting plate 6 can be removed from the reinforcing mounting plate groove 10 of the storage tank 4 to complete the disassembly operation of the device.

[0035] Two reinforcing mounting plates 6 are inserted into the reinforcing mounting plate grooves 10 on the outer wall of the storage tank 4 through the reinforcing assembly. Since the arc surface of the reinforcing mounting plate 6 fits against the inner wall of the reinforcing mounting plate groove 10, the mounting seat 12 at the lower end of the reinforcing mounting plate 6 is inside the mounting seat groove 13 on the support base 1. Then, the rotating threaded rod sleeve 2 on the outer wall of the protective shell 3 is rotated so that the rotating threaded rod 16 moves towards the T-shaped block 9 under the drive of the rotating threaded rod sleeve 2. The rotating threaded rod 16 pushes the limiting block 15 to gradually extend into the second limiting block groove 18. At the same time, the conical blocks on both sides of it fit tightly with the conical block groove 17, firmly locking the T-shaped block 9. This achieves a firm fixation of the reinforcing mounting plate 6, mounting seat 12, support base 1, and storage tank 4, enhancing the stability of the storage tank 4 and avoiding problems such as tank deformation and weld cracking that are prone to occur during long-term use.

[0036] Structural Description: Support Base 1: Support Base 1 is the basic load-bearing component of the entire device, providing stable support for Storage Tank 4. The upper two outer walls are provided with mounting slots 13 for mounting mounting seats 12 in the reinforcement components. Four protective shells 3 are also fixedly connected to the two outer walls. The interior of the protective shell 3 communicates with the first limiting block slot 14 in the mounting slot 13, providing space for the operation and protection of the limiting block 15, while protecting internal rotating threaded rods 16 and other components from external collisions and corrosion.

[0037] Storage tank 4: Storage tank 4 is the core container for storing liquid nitrogen. The upper surface is equipped with a feed pipe 5, which can transport liquid nitrogen into the tank. The lower outer wall is equipped with a discharge pipe 11, which facilitates the output of liquid nitrogen. The outer wall of the tank is provided with two reinforcing mounting plate grooves 10, which cooperate with the reinforcing mounting plate 6 to realize the connection between the reinforcing components and the storage tank 4.

[0038] Reinforcing mounting plate 6: There are two of them. One side is arc-shaped and fits against the inner wall of the reinforcing mounting plate groove 10 on the storage tank 4. Multiple horizontally arranged reinforcing ribs 7 are fixedly installed on the outer wall. The multiple reinforcing ribs 7 form a reinforcement area on the outer wall of the two reinforcing mounting plates 6, which enhances the strength and stability of the reinforcing mounting plates 6. The reinforcing mounting plates 6 can slide in the reinforcing mounting plate groove 10 to achieve a tight connection with the storage tank 4.

[0039] Mounting base 12: Two mounting bases 12 are respectively fixed to the lower end of the corresponding reinforcing mounting plate 6. Their outer walls are slidably connected to the mounting base groove 13 on the support base 1 to realize the positioning of the reinforcing component on the support base 1. T-shaped blocks 9 are fixedly connected to the outer walls on both sides of the mounting base 12. The T-shaped blocks 9 are slidably engaged with the T-shaped block grooves 8 on the inner walls on both sides of the mounting base groove 13 to further ensure the stability of the mounting base 12. At the same time, a second limiting block groove 18 is opened on the T-shaped block 9, which cooperates with the limiting block 15 to realize the fixation of the reinforcing component.

[0040] Protective shell 3: Four protective shells 3 are fixed on the outer walls of the upper two sides of the support base 1. The interior is connected to the first limiting block groove 14. The outer wall is rotatably connected to the rotating threaded rod sleeve 2. The protective shell 3 not only protects the internal structure, but also provides installation space and operation channel for the rotating threaded rod sleeve 2 and the limiting block 15.

[0041] Reinforcing ribs 7: Multiple reinforcing ribs 7 are horizontally fixedly installed on the outer wall of the reinforcing mounting plate 6 to form a reinforced area, improve the deformation resistance of the reinforcing mounting plate 6, and ensure that the reinforcing mounting plate 6 can effectively share the pressure when the storage tank 4 is subjected to external forces, thereby enhancing the stability of the overall structure.

[0042] Limiting block 15: Four limiting blocks 15 are slidably connected in four first limiting block grooves 14 respectively. Conical blocks are provided on both sides of the limiting block 15, which slide in cooperation with the conical block grooves 17 on both sides of the inner wall of the first limiting block groove 14. The end of the limiting block 15 near the T-shaped block 9 can extend into the second limiting block groove 18. By rotating the rotating threaded rod sleeve 2, the rotating threaded rod 16 is moved, thereby controlling the extension and retraction of the limiting block 15, and realizing the fixing and loosening of the reinforcement component.

[0043] Rotating threaded rod 16 and rotating threaded rod sleeve 2: One end of rotating threaded rod 16 is rotatably connected to limiting block 15, and the other end is threadedly connected to the inside of rotating threaded rod sleeve 2. When rotating rotating threaded rod sleeve 2, rotating threaded rod 16 moves axially under the action of threaded transmission, pushing or pulling limiting block 15, so that it slides in the first limiting block groove 14, the conical block groove 17 and the second limiting block groove 18, to complete the locking and unlocking operation of the reinforcement component.

[0044] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A liquid nitrogen storage device, comprising a support base (1) and a storage tank (4), characterized in that: The support base (1) is provided with a reinforcing component; The reinforcement assembly includes two reinforcement mounting plates (6), two mounting bases (12), four protective shells (3) and multiple reinforcement ribs (7). Multiple reinforcement ribs (7) are fixedly installed on the outer walls of the two reinforcement mounting plates (6). Two reinforcement mounting plate slots (10) are opened on the outer wall of the storage tank (4). Two mounting bases (12) are fixedly connected to the lower end of the corresponding reinforcement mounting plates (6). The storage tank (4) is fixedly installed on the upper surface of the support base (1). Mounting base slots (13) are opened on both sides of the upper end of the support base (1). Four protective shells (3) are fixedly connected to both sides of the upper end of the support base (1). T-shaped blocks (9) are fixedly connected to both sides of the outer walls of the two mounting bases (12). Among them, the inner walls of the two mounting slots (13) are provided with T-shaped block slots (8), the inner walls of the four T-shaped block slots (8) are provided with first limiting block slots (14), the inner walls of the four first limiting block slots (14) are slidably connected with limiting blocks (15), the outer walls of the four protective shells (3) are rotatably connected with rotating threaded rod sleeves (2), the inner walls of the four first limiting block slots (14) are provided with conical block slots (17), the inner walls of the four first limiting block slots (14) are provided with rotating threaded rods (16), and the outer walls of the four T-shaped blocks (9) are provided with second limiting block slots (18).

2. The liquid nitrogen storage device according to claim 1, characterized in that: Both of the two reinforcing mounting plates (6) have an arc surface on one side, and the two reinforcing mounting plates (6) are slidably connected to the interior of the corresponding reinforcing mounting plate groove (10); Among them, multiple reinforcing ribs (7) form a reinforcing area on the outer wall of the two reinforcing mounting plates (6), and the outer wall of the arc surface of the two reinforcing mounting plates (6) respectively contacts the inner wall of the corresponding reinforcing mounting plate groove (10).

3. The liquid nitrogen storage device according to claim 1, characterized in that: The outer walls of the two mounting seats (12) are slidably connected to the interior of the corresponding mounting seat groove (13), and the outer walls of the four T-blocks (9) are slidably connected to the interior of the corresponding T-block groove (8); The interiors of the four protective shells (3) are connected to the interiors of the corresponding first limiting block grooves (14).

4. A liquid nitrogen storage device according to claim 1, characterized in that: The four rotating threaded rod sleeves (2) extend into the interior of the protective shell (3) at the end closest to the protective shell (3), and the outer walls of the conical blocks on both sides of the four limiting blocks (15) are slidably connected to the interior of the corresponding conical block grooves (17); Among them, the ends of the four rotating threaded rods (16) near the limiting block (15) are respectively rotatably connected to the outer wall of the corresponding limiting block (15).

5. A liquid nitrogen storage device according to claim 1, characterized in that: The four limiting blocks (15) extend slidably into the interior of the T-shaped block groove (8) at one end near the second limiting block groove (18) and are respectively slidably connected to the interior of the corresponding second limiting block groove (18); Among them, the outer wall of the end of the four rotating threaded rods (16) away from the limiting block (15) is respectively connected to the internal thread of the corresponding rotating threaded rod sleeve (2).

6. A liquid nitrogen storage device according to claim 1, characterized in that: The storage tank (4) is equipped with a feed pipe (5) on its upper surface. The inside of the feed pipe (5) is connected to the inside of the storage tank (4). The storage tank (4) is equipped with a discharge pipe (11) on its lower outer wall. The inside of the discharge pipe (11) is connected to the inside of the storage tank (4), and the two mounting bases (12) are arc-shaped on the side away from the reinforcing mounting plate (6), and multiple reinforcing ribs (7) are arranged horizontally.

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