Liquid nitrogen storage device

Abstract

The utility model provides a liquid nitrogen storage device which comprises a storage main tank body, a plurality of equipment supporting frames are arranged on the outer side of the storage main tank body, a liquid nitrogen filling system is arranged on one side of the storage main tank body, and the lower end of the liquid nitrogen filling system is connected to an external discharging opening in a lower supporting sealing plug. The upper end of the liquid nitrogen filling system is connected to a filling opening in the upper connecting sealing plug, a liquid nitrogen filling device is arranged on the filling opening, the liquid nitrogen filling system comprises a liquid discharging pipe, one end of the liquid discharging pipe is installed on an external discharging opening, the other end of the liquid discharging pipe is provided with a connecting flange, and the middle of the liquid discharging pipe is connected to a circulating pipe through a three-way pipe. The upper end of the circulating pipe is connected to a filling pipe I through a three-way pipe, one end of the filling pipe I is connected to a filling pipe II through a connecting bent pipe, and the middle of the filling pipe II is connected to a conveying pipe through a three-way pipe. And convenience in filling and use can be realized.

Description

Technical Field

[0001] This utility model relates to the field of storage device technology, specifically a liquid nitrogen storage device. Background Technology

[0002] Nitrogen is a chemical element with the symbol N and atomic number 7. In nature, nitrogen mainly exists in its elemental form, namely nitrogen gas (N2). Nitrogen gas is a colorless, odorless, and chemically inert gas that makes up about 78% of the Earth's atmosphere, making it the most abundant component in the atmosphere.

[0003] Nitrogen plays a vital role in living organisms. It is a key component of biomolecules such as proteins and nucleic acids, and is essential for the structure and function of organisms. In ecosystems, the nitrogen cycle is one of the core components, encompassing multiple processes such as nitrogen fixation, ammonification, nitrification, and denitrification. These processes maintain the dynamic balance of nitrogen in the biosphere and environment.

[0004] In industry, nitrogen has extremely wide applications. It is an important raw material for the production of fertilizers, nitric acid, and explosives, and is of great significance to agricultural production and industrial manufacturing. Furthermore, liquid nitrogen, due to its extremely low temperature, is widely used in freezing, medical, and other fields, such as cryopreservation of biological samples and cryotherapy. Nitrogen compounds are numerous and diverse, not only profoundly impacting human life but also occupying an important position in scientific research.

[0005] Chinese patent discloses a medical liquid nitrogen storage device (application number: 202110320354.4), including a liquid nitrogen tank, a support assembly, a storage assembly, a fixing assembly, and a driving component; the support assembly includes a support plate and a support platform; the support plate is disposed above the support platform; the support platform is used to contact the ground; the storage assembly includes a storage cylinder; the storage cylinder is fixed to the center position of the upper surface of the support plate; the side wall of the storage cylinder has multiple vertical grooves; the liquid nitrogen tank is disposed in the storage cylinder; however, its filling is inconvenient, making its use rather troublesome. Utility Model Content

[0006] The technical problem solved by this invention is to provide a liquid nitrogen storage device to address the issues raised in the background section.

[0007] The technical problem solved by this utility model is achieved by the following technical solution: A liquid nitrogen storage device, comprising: a main storage tank, an upper connecting sealing plug at the upper end of the main storage tank, a lower supporting sealing plug at the lower end of the main storage tank, a plurality of equipment support frames on the outside of the main storage tank, a liquid nitrogen filling system on one side of the main storage tank, the lower end of the liquid nitrogen filling system being connected to the outlet on the lower supporting sealing plug, and the upper end of the liquid nitrogen filling system being connected to the filling port on the upper connecting sealing plug, the filling port being provided with a liquid nitrogen filling device. The liquid nitrogen filling system includes a discharge pipe, one end of which is installed on an external outlet and the other end is provided with a connecting flange. The middle part of the discharge pipe is connected to a circulation pipe through a T-connector. The upper end of the circulation pipe is connected to a filling pipe I through a T-connector. One end of the filling pipe I is connected to a filling pipe II through a connecting bend. The middle part of the filling pipe II is connected to a delivery pipe through a T-connector. The upper end of the delivery pipe is connected to a liquid nitrogen filling device. Electromagnetic control valves are provided on both sides of the T-connector on the filling pipe I and on both sides of the T-connector on the filling pipe II.

[0008] Furthermore, the main storage tank includes an inner tank and an outer tank, with an insulation layer between the inner tank and the outer tank. The inner tank is equipped with a tank support frame, and the outer tank is equipped with several equipment support frames on its outer side.

[0009] Furthermore, the tank support frame includes a tank support crossbar and a tank support longitudinal bar, which are vertically connected. Tank connecting lugs are provided on the outer sides of the tank support crossbar and the tank support longitudinal bar.

[0010] Furthermore, the main storage tank is provided with an equipment maintenance manhole on one side, and a lifting lug is provided on the main storage tank. A pressure monitoring device is provided on the upper connecting sealing plug, and a spare connecting pipe is provided on the upper connecting sealing plug on one side of the pressure monitoring device.

[0011] Furthermore, the equipment support frame includes an equipment support column, the upper end of which is provided with a tank fixing plate, and the lower end of which is provided with an equipment fixing pad. The equipment support column and the equipment fixing pad are welded and fixed to the equipment support column.

[0012] Furthermore, the liquid nitrogen filling device includes a filling tube, and the lower end of the filling tube is provided with a dispersion tube I and a dispersion tube II. The dispersion tube I and the dispersion tube II are arranged vertically, and a plurality of diversion tubes are provided on the dispersion tube I and the dispersion tube II.

[0013] Compared with the prior art, the advantages of this utility model are: this utility model can not only achieve uniform filling of liquid nitrogen, making the temperature and pressure inside the storage tube uniform and ensuring storage safety, but also achieve convenient filling and convenient use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the tank support frame structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the equipment support frame structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the liquid nitrogen filling system of this utility model.

[0018] Figure 5 This is a schematic diagram of the liquid nitrogen filling device of this utility model. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; and they can be internal connections between two components.

[0020] Example 1

[0021] like Figures 1-5 As shown, a liquid nitrogen storage device includes: a main storage tank 1, with an upper connecting sealing plug 3 at the upper end and a lower supporting sealing plug 2 at the lower end; several equipment support frames 5 are provided on the outer side of the main storage tank 1; a liquid nitrogen filling system 6 is provided on one side of the main storage tank 1; the lower end of the liquid nitrogen filling system 6 is connected to an outlet on the lower supporting sealing plug 2; the upper end of the liquid nitrogen filling system 6 is connected to a filling port on the upper connecting sealing plug 3; a liquid nitrogen filling device 8 is provided on the filling port; and the liquid nitrogen filling system 6 includes a discharge pipe 61. One end of the discharge pipe 61 is installed on the external discharge port, and the other end is provided with a connecting flange 67. The middle part of the discharge pipe 61 is connected to the circulation pipe 62 through a tee pipe. The upper end of the circulation pipe 62 is connected to the filling pipe I 63 through a tee pipe. One end of the filling pipe I 63 is connected to the filling pipe II 65 through a connecting bend 64. The middle part of the filling pipe II 65 is connected to the delivery pipe 66 through a tee pipe. The upper end of the delivery pipe 66 is connected to the liquid nitrogen filling device 8. Electromagnetic control valves are provided on both sides of the tee pipe on the filling pipe I 63 and on both sides of the tee pipe on the filling pipe II 65.

[0022] Example 2

[0023] like Figures 1-5 As shown, a liquid nitrogen storage device includes: a main storage tank 1, an upper connecting sealing plug 3 at the upper end of the main storage tank 1, a lower supporting sealing plug 2 at the lower end of the main storage tank 1, a plurality of equipment support frames 5 on the outer side of the main storage tank 1, a liquid nitrogen filling system 6 on one side of the main storage tank 1, the lower end of the liquid nitrogen filling system 6 being connected to an outlet on the lower supporting sealing plug 2, the upper end of the liquid nitrogen filling system 6 being connected to a filling port on the upper connecting sealing plug 3, and a liquid nitrogen filling device 8 on the filling port. The main storage tank 1 includes an inner tank and an outer tank, with an insulation layer between the inner tank and the outer tank. A tank support frame is provided inside the inner tank, and a plurality of equipment support frames 5 are provided on the outer side of the outer tank. The tank support frame includes a tank support crossbar 11 and a tank support longitudinal bar 12, which are vertically connected. Tank connection lugs 13 are provided on the outer sides of the tank support crossbar 11 and the tank support longitudinal bar 12.

[0024] Example 3

[0025] like Figures 1-5 As shown, a liquid nitrogen storage device includes: a main storage tank 1, an upper connecting sealing plug 3 at the upper end of the main storage tank 1, a lower supporting sealing plug 2 at the lower end of the main storage tank 1, several equipment support frames 5 on the outside of the main storage tank 1, a liquid nitrogen filling system 6 on one side of the main storage tank 1, the lower end of the liquid nitrogen filling system 6 being connected to an outlet on the lower supporting sealing plug 2, the upper end of the liquid nitrogen filling system 6 being connected to a filling port on the upper connecting sealing plug 3, a liquid nitrogen filling device 8 on the filling port, an equipment maintenance manhole 4 on one side of the main storage tank 1, lifting lugs 10 on the main storage tank 1, a pressure monitoring device 7 on the upper connecting sealing plug 3, and a spare connecting pipe 9 on the upper connecting sealing plug 3 on one side of the pressure monitoring device 7.

[0026] Example 4

[0027] like Figures 1-5As shown, a liquid nitrogen storage device includes: a main storage tank 1, an upper connecting sealing plug 3 at the upper end of the main storage tank 1, a lower supporting sealing plug 2 at the lower end of the main storage tank 1, several equipment support frames 5 on the outside of the main storage tank 1, a liquid nitrogen filling system 6 on one side of the main storage tank 1, the lower end of the liquid nitrogen filling system 6 being connected to an outlet on the lower supporting sealing plug 2, the upper end of the liquid nitrogen filling system 6 being connected to a filling port on the upper connecting sealing plug 3, a liquid nitrogen filling device 8 being provided on the filling port, and the equipment support frame 5 including an equipment support column 51, a tank fixing plate 52 at the upper end of the equipment support column 51, and an equipment fixing pad 53 at the lower end of the equipment support column 51. The equipment support column 51 and the equipment fixing pad 53 are welded and fixed to the equipment support column 51.

[0028] Example 5

[0029] like Figures 1-5 As shown, a liquid nitrogen storage device includes: a main storage tank 1, an upper connecting sealing plug 3 at the upper end of the main storage tank 1, a lower supporting sealing plug 2 at the lower end of the main storage tank 1, several equipment support frames 5 on the outer side of the main storage tank 1, a liquid nitrogen filling system 6 on one side of the main storage tank 1, the lower end of the liquid nitrogen filling system 6 being connected to an outlet on the lower supporting sealing plug 2, the upper end of the liquid nitrogen filling system 6 being connected to a filling port on the upper connecting sealing plug 3, a liquid nitrogen filling device 8 on the filling port, the liquid nitrogen filling device 8 including a filling pipe 81, a dispersion pipe I 82 and a dispersion pipe II 83 at the lower end of the filling pipe 81, the dispersion pipe I 82 and the dispersion pipe II 83 being vertically arranged, and several diversion pipes 84 being provided on the dispersion pipe I 82 and the dispersion pipe II 83.

[0030] Embodiment 1 of this utility model

[0031] like Figures 1-5 As shown, a liquid nitrogen storage device includes: a main storage tank 1, an upper connecting sealing plug 3 at the upper end of the main storage tank 1, a lower supporting sealing plug 2 at the lower end of the main storage tank 1, several equipment support frames 5 on the outer side of the main storage tank 1, a liquid nitrogen filling system 6 on one side of the main storage tank 1, the lower end of the liquid nitrogen filling system 6 being connected to an outlet on the lower supporting sealing plug 2, and the upper end of the liquid nitrogen filling system 6 being connected to a filling port on the upper connecting sealing plug 3, with a liquid nitrogen filling device 8 on the filling port. This device not only enables uniform filling of liquid nitrogen, resulting in uniform temperature and pressure within the storage tube and ensuring storage safety, but also facilitates filling and use.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A liquid nitrogen storage device, comprising: The utility model provides a storage main tank body (1), its characterized in be equipped with upper connection sealing plug (3) on the upper end of storage main tank body (1), be equipped with lower support sealing plug (2) on the lower end of storage main tank body (1), be equipped with a plurality of equipment support frame (5) on the outside of storage main tank body (1), be equipped with liquid nitrogen filling system (6) on one side of storage main tank body (1), the lower end of liquid nitrogen filling system (6) is connected on the outside of lower support sealing plug (2) on the mouth, the upper end of liquid nitrogen filling system (6) is connected on the filling mouth of upper connection sealing plug (3), be equipped with liquid nitrogen filling device (8) on the filling mouth, liquid nitrogen filling system (6) includes liquid discharge pipe (61), one end of liquid discharge pipe (61) is installed on the outside of mouth, the other end is equipped with connecting flange (67), the middle part of liquid discharge pipe (61) is connected on circulating pipe (62) through three -way pipe, the upper end of circulating pipe (62) is connected on filling pipe I (63) through three -way pipe, one end of filling pipe I (63) is connected on filling pipe II (65) through connecting elbow (64), the middle part of filling pipe II (65) is connected on conveying pipe (66) through three -way pipe, the upper end of conveying pipe (66) is connected on liquid nitrogen filling device (8), both sides of three -way pipe on filling pipe I (63) are equipped with electromagnetic control valve, both sides of three -way pipe on filling pipe II (65) are equipped with electromagnetic control valve.

2. The liquid nitrogen storage device of claim 1, wherein: The storage main tank body (1) includes an inner tank and an outer tank, a heat preservation layer is arranged between the inner tank and the outer tank, a tank support frame is arranged in the inner tank, and a plurality of equipment support frames (5) are arranged on the outer side of the outer tank.

3. The liquid nitrogen storage device of claim 2, wherein: The tank support frame includes a tank support horizontal rod (11) and a tank support vertical rod (12), the tank support horizontal rod (11) and the tank support vertical rod (12) are vertically connected, and tank connection ears (13) are arranged on the outer sides of the tank support horizontal rod (11) and the tank support vertical rod (12).

4. The liquid nitrogen storage device of claim 1, wherein: One side of the storage main tank body (1) is provided with an equipment maintenance manhole (4), the storage main tank body (1) is provided with a lifting lug (10), the upper connection sealing plug (3) is provided with a pressure monitoring device (7), and a standby connecting pipeline (9) is arranged on one side of the upper connection sealing plug (3).

5. The liquid nitrogen storage device of claim 1, wherein: The equipment support frame (5) includes an equipment support column (51), the equipment support column (51) is provided with a tank fixing plate (52) at the upper end, and the equipment support column (51) is provided with an equipment fixing base plate (53) at the lower end, and the equipment support column (51) and the equipment fixing base plate (53) are welded and fixed on the equipment support column (51).

6. The liquid nitrogen storage device of claim 1, wherein: The liquid nitrogen filling device (8) includes a filling pipe (81), the lower end of the filling pipe (81) is provided with a dispersion pipe I (82) and a dispersion pipe II (83), the dispersion pipe I (82) and the dispersion pipe II (83) are vertically arranged, and a plurality of shunt pipes (84) are arranged on the dispersion pipe I (82) and the dispersion pipe II (83).

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