Heat insulation type high-pressure tank for liquid nitrogen storage

Abstract

The utility model discloses a heat insulation type high-pressure tank for liquid nitrogen storage, which belongs to the technical field of high-pressure storage tank bodies and comprises a high-pressure storage tank body, a damping compression ring is fixedly connected outside the high-pressure storage tank body, a plurality of first damping springs are mounted below the damping compression ring, and a protective shell is arranged below the first damping springs. The protective shell is movably connected with the damping pressing ring, a transverse groove is formed in the inner side wall of the protective shell, and a connecting rod is movably connected into the transverse groove. According to the heat insulation type high-pressure tank for liquid nitrogen storage, by arranging a damping pressing ring, a protective shell, an extrusion block and a third reset spring, the high-pressure storage tank extrudes the damping pressing ring and the extrusion block, so that a first damping spring and the third reset spring conduct preliminary damping on the high-pressure storage tank, and then the extrusion block moves downwards to drive an extrusion buffer plate to move; and therefore, an extrusion buffer plate drives a second damping spring to further damp and buffer the high-pressure storage tank body, and the safety of the high-pressure storage tank body during conveying is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-pressure storage tanks, and particularly relates to a heat-insulating high-pressure tank for liquid nitrogen storage. Background Technique

[0002] The heat-insulating high-pressure tank for liquid nitrogen storage is a high-pressure container designed for long-term storage of liquid nitrogen. This kind of tank is usually made of high-quality stainless steel materials to ensure good corrosion resistance and compressive performance. In the actual use of the current high-pressure tanks on the market, when transporting, multiple high-pressure tanks often need to be carried at the same time. During transportation, the vibration caused by improper handling easily makes the high-pressure tanks squeeze and collide with each other, resulting in damage to the high-pressure tanks and being unfavorable to the normal use of the high-pressure tanks. Content of the Utility Model

[0003] In order to overcome the above defects, the utility model provides a heat-insulating high-pressure tank for liquid nitrogen storage, which solves the problem that when transporting, multiple high-pressure tanks often need to be carried at the same time. During transportation, the vibration caused by improper handling easily makes the high-pressure tanks squeeze and collide with each other, resulting in damage to the high-pressure tanks and being unfavorable to the normal use of the high-pressure tanks.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A heat-insulating high-pressure tank for liquid nitrogen storage, including a high-pressure storage tank body, a shock-absorbing pressure ring is fixedly connected to the outside of the high-pressure storage tank body, a plurality of first shock-absorbing springs are installed under the shock-absorbing pressure ring, a protective shell is arranged under the first shock-absorbing springs, the protective shell is movably connected with the shock-absorbing pressure ring, a transverse groove is opened on the inner side wall of the protective shell, and a connecting rod is movably connected in the transverse groove;

[0005] A second shock-absorbing spring is arranged outside the connecting rod, one end of the second shock-absorbing spring is provided with an extrusion buffer plate, an extrusion block is arranged on the extrusion buffer plate, the extrusion block is fixedly connected with the high-pressure storage tank body, and a pressing rod is arranged under the extrusion block.

[0006] As a further scheme of the utility model: A third return spring is arranged under the pressing rod, and the third return spring is movably connected with the protective shell.

[0007] As a further scheme of the utility model: A rotating shaft is installed under the protective shell, a movable seat is arranged under the rotating shaft, and a movable ring groove is opened on the movable seat.

[0008] As a further scheme of the utility model: A limiting and reinforcing rod is arranged on the inner wall of the movable ring groove, the limiting and reinforcing rod is movably connected with the protective shell, and a movable wheel is installed under the movable seat.

[0009] As a further solution of the present utility model: an insulating layer is provided on the inner wall of the high-pressure storage tank body, and a handle is fixedly connected to the high-pressure storage tank body. The number of the handles is four and they are distributed in a circular array.

[0010] As a further solution of the present utility model: a pressure measuring instrument is installed on the high-pressure storage tank body near the handle, and a heat-insulating sealing cover is provided on the high-pressure storage tank body.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. For the heat-insulating high-pressure tank for liquid nitrogen storage, by providing a shock-absorbing pressure ring, a protective shell, a pressing block and a third return spring, when the high-pressure storage tank body is impacted and vibrates, the high-pressure storage tank body presses the shock-absorbing pressure ring and the pressing block, so that the first shock-absorbing spring and the third return spring perform preliminary shock absorption on the high-pressure storage tank body. Subsequently, the pressing block moves downward to drive the extrusion buffer plate to move, so that the extrusion buffer plate drives the second shock-absorbing spring to perform further shock absorption and buffering on the high-pressure storage tank body, ensuring the safety of the high-pressure storage tank body during transportation.

[0013] 2. For the heat-insulating high-pressure tank for liquid nitrogen storage, by providing a rotating shaft, a handle, a movable seat and a movable wheel, by pulling the handle, the movable wheel can be driven to rotate in the movable seat, and at the same time, the movable seat can adjust the moving direction through the rotating shaft, so that the high-pressure storage tank body can be short-distance transported, thereby improving the flexibility of the high-pressure storage tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0015] Figure 2 is a schematic structure diagram of the shock-absorbing pressure ring and the extrusion buffer plate of the present utility model;

[0016] Figure 3 is a schematic cross-sectional structure diagram of the high-pressure storage tank body and the protective shell of the present utility model;

[0017] Figure 4 is a schematic structure diagram of the pressing block and the movable seat of the present utility model;

[0018] In the figure: 1. High-pressure storage tank body; 2. Shock-absorbing pressure ring; 3. First shock-absorbing spring; 4. Protective shell; 5. Horizontal groove; 6. Connecting rod; 7. Second shock-absorbing spring; 8. Extrusion buffer plate; 9. Pressing block; 10. Pressing rod; 11. Third return spring; 12. Rotating shaft; 13. Movable seat; 14. Movable ring groove; 15. Limit reinforcement rod; 16. Movable wheel; 17. Insulating layer; 18. Handle; 19. Pressure measuring instrument; 20. Heat-insulating sealing cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

[0020] As Figures 1-4 shown, the present utility model provides a technical solution: a heat-insulating high-pressure tank for liquid nitrogen storage, including a high-pressure storage tank body 1, an inner wall of the high-pressure storage tank body 1 is provided with a heat-insulating layer 17, and a handle 18 is fixedly connected to the high-pressure storage tank body 1. The number of handles 18 is four and they are distributed in a circular array. By providing the heat-insulating layer 17, the heat-insulating layer 17 can reduce the influence of the external temperature on the inside of the high-pressure storage tank body 1, thereby ensuring the heat-insulating effect of the high-pressure tank;

[0021] A shock-absorbing pressure ring 2 is fixedly connected to the outside of the high-pressure storage tank body 1. A plurality of first shock-absorbing springs 3 are installed under the shock-absorbing pressure ring 2. A protective shell 4 is provided under the first shock-absorbing springs 3. A rotating shaft 12 is installed under the protective shell 4. An activity seat 13 is provided under the rotating shaft 12. An activity ring groove 14 is formed on the activity seat 13. By providing the protective shell 4, the high-pressure storage tank bodies 1 can be separated from each other through the protective shell 4, thereby reducing the mutual contact of the high-pressure storage tank bodies 1 and effectively improving the safety of the high-pressure tank during transportation;

[0022] A limiting and reinforcing rod 15 is provided on the inner wall of the activity ring groove 14. The limiting and reinforcing rod 15 is movably connected to the protective shell 4. An activity wheel 16 is installed under the activity seat 13. By providing the limiting and reinforcing rod 15, the limiting and reinforcing rod 15 can move in the activity ring groove 14, thereby reducing the pressure received when the rotating shaft 12 rotates and improving the flexibility of the high-pressure tank;

[0023] A pressure measuring instrument 19 is installed on the high-pressure storage tank body 1 near the handle 18. A heat-insulating sealing cover 20 is provided on the high-pressure storage tank body 1. By providing the pressure measuring instrument 19, the staff can observe the specific situation inside the high-pressure storage tank body 1 through the pressure measuring instrument 19;

[0024] The protective shell 4 is movably connected to the shock-absorbing pressure ring 2. A transverse groove 5 is formed on the inner side wall of the protective shell 4. A connecting rod 6 is movably connected in the transverse groove 5;

[0025] A second shock-absorbing spring 7 is provided outside the connecting rod 6. One end of the second shock-absorbing spring 7 is installed with a squeezing buffer plate 8. An extrusion block 9 is provided on the squeezing buffer plate 8. The extrusion block 9 is fixedly connected to the high-pressure storage tank body 1. A pressing rod 10 is provided under the extrusion block 9. A third return spring 11 is provided under the pressing rod 10. The third return spring 11 is movably connected to the protective shell 4.

[0026] The working principle of the present utility model is:

[0027] When carrying the high-pressure tank, by pulling the handle 18, the movable wheel 16 can be driven to rotate within the movable seat 13. Meanwhile, the movable seat 13 can adjust the moving direction through the rotating shaft 12, so that the high-pressure storage tank body 1 can achieve short-distance transportation. Or the whole can be lifted by the handle 18 and placed at the required position. At the same time, the first shock-absorbing spring 3 and the third reset spring 11 play a role in buffering and shock-absorbing the high-pressure storage tank body 1 during the placement process;

[0028] When the high-pressure storage tank body 1 is impacted and vibrates, the high-pressure storage tank body 1 will simultaneously squeeze the shock-absorbing pressure ring 2 and the extrusion block 9, causing the first shock-absorbing spring 3 below the shock-absorbing pressure ring 2 and the third reset spring 11 below the extrusion block 9 to initially shock-absorb the high-pressure storage tank body 1. Subsequently, the extrusion block 9 moves downward to drive the extrusion buffer plate 8 to move outward, so that the extrusion buffer plate 8 drives the second shock-absorbing spring 7 to further shock-absorb and buffer the high-pressure storage tank body 1.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0030] The above has made a detailed description of the preferred embodiment of this patent. However, this patent is not limited to the above embodiment. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can also be made without departing from the purpose of this patent.

Claims

1. An insulated high-pressure tank for storing liquid nitrogen, comprising a high-pressure storage tank body (1), characterized in that: The high-pressure storage tank body (1) is fixedly connected to a shock-absorbing pressure ring (2) on the outside, a plurality of first shock-absorbing springs (3) are installed under the shock-absorbing pressure ring (2), a protective shell (4) is arranged under the first shock-absorbing spring (3), the protective shell (4) is movably connected to the shock-absorbing pressure ring (2), a transverse groove (5) is provided on the inner side wall of the protective shell (4), and a connecting rod (6) is movably connected in the transverse groove (5); A second damping spring (7) is arranged outside the connecting rod (6), an extrusion buffer plate (8) is installed at one end of the second damping spring (7), an extrusion block (9) is arranged on the extrusion buffer plate (8), the extrusion block (9) is fixedly connected to the high-pressure storage tank body (1), and a lower pressure rod (10) is arranged under the extrusion block (9).

2. The insulated high-pressure tank for storing liquid nitrogen according to claim 1, characterized in that: A third return spring (11) is arranged under the lower pressure rod (10), and the third return spring (11) is movably connected to the protective shell (4).

3. The insulated high-pressure tank for storing liquid nitrogen according to claim 1, characterized in that: A rotating shaft (12) is installed under the protective shell (4), a movable seat (13) is arranged under the rotating shaft (12), and a movable annular groove (14) is provided on the movable seat (13).

4. The heat-insulated high-pressure tank for storing liquid nitrogen according to claim 3, characterized in that: A limit reinforcing rod (15) is provided on the inner wall of the movable annular groove (14), the limit reinforcing rod (15) is movably connected to the protective shell (4), and a movable wheel (16) is installed under the movable seat (13).

5. The heat-insulated high-pressure tank for storing liquid nitrogen according to claim 1, characterized in that: The inner wall of the high-pressure storage tank body (1) is provided with a heat insulation layer (17), and a handle (18) is fixedly connected to the high-pressure storage tank body (1), and the handles (18) are four in number and distributed in a ring array.

6. The heat-insulated high-pressure tank for storing liquid nitrogen according to claim 5, characterized in that: A pressure measuring instrument (19) is installed on the high-pressure storage tank body (1) near the handle (18), and a heat-insulating sealing cover (20) is provided on the high-pressure storage tank body (1).

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