Liquid nitrogen tank device for preventing liquid nitrogen from splashing

Abstract

The liquid nitrogen tank device capable of preventing the liquid nitrogen from splashing comprises a tank body, a flange plate, a tank cover and a sealing ring, supports are welded to the periphery of the bottom of the tank body, a cooling assembly is arranged at the bottom of the tank body, and the cooling assembly comprises a refrigeration box, a semiconductor refrigeration rod, a filter screen, a fan, a clamping base and a communicating pipe. The refrigeration box is fixedly connected to the middle end of the bottom of the tank body, the fan is arranged on the left side of the refrigeration box, the semiconductor refrigeration rod is fixedly connected to the right side of the bottom of an inner cavity of the refrigeration box, and the communicating pipe communicates with the right side of the refrigeration box. External air can be sucked into the refrigeration box through the fan, the air can be refrigerated through the semiconductor refrigeration rod and converted into cold air, and the cold air enters the cooling pipe through the communicating pipe and is exhausted through the through holes formed in the inner side of the cooling pipe to be blown to the surface of the tank body to cool and refrigerate the tank body, so that the temperature of the surrounding environment of the tank body is reduced; internal liquid nitrogen splashing caused by temperature difference is avoided, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to a liquid nitrogen tank device for preventing liquid nitrogen from splashing, belonging to the technical field of liquid nitrogen tanks. Background Art

[0002] Liquid nitrogen tanks can generally be divided into two types: liquid nitrogen storage tanks and liquid nitrogen transport tanks. Storage tanks are mainly used for static storage of liquid nitrogen indoors and are not suitable for long-distance transportation in working conditions. Liquid nitrogen transport tanks have been specially designed to be shockproof in order to meet transportation conditions. In addition to static storage, they can also be used for transportation when filled with liquid nitrogen, but violent collisions and vibrations should also be avoided.

[0003] Existing liquid nitrogen tanks may splash, which may be caused by temperature differences. The liquid nitrogen in the liquid nitrogen tank is at an extremely low temperature (about -196 degrees Celsius), while the temperature of the surrounding environment is usually much higher. When liquid nitrogen comes into contact with a high-temperature object or environment, a drastic temperature difference will occur, causing the liquid nitrogen to boil rapidly and produce gas. This sudden gasification process may cause the liquid to splash out. Liquid nitrogen tank splashes may bring serious safety hazards, because the temperature of liquid nitrogen is extremely low, and contact with skin or tissue will cause severe frostbite and may even cause tissue necrosis. In addition, liquid nitrogen splashes may also cause damage to items or equipment, affect the surrounding environment, and even cause dangerous situations such as fire or explosion.

[0004] Therefore, a liquid nitrogen tank device for preventing liquid nitrogen from splashing is proposed. Utility Model Content

[0005] In view of this, the utility model provides a liquid nitrogen tank device for preventing liquid nitrogen from splashing, so as to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the utility model is implemented as follows: a liquid nitrogen tank device for preventing liquid nitrogen from splashing, comprising a tank body, a flange, a tank cover and a sealing ring, brackets are welded around the bottom of the tank body, a cooling component is arranged at the bottom of the tank body, the cooling component comprises a refrigeration box, a semiconductor refrigeration rod, a filter, a fan, a card seat and a connecting pipe, and the refrigeration box is fixedly connected to the middle end of the bottom of the tank body.

[0007] Further preferably, the fan is arranged on the left side of the refrigeration box, the semiconductor refrigeration rod is fixedly connected to the right side of the bottom of the inner cavity of the refrigeration box, the connecting pipe is connected to the right side of the refrigeration box, one end of the connecting pipe is connected to a cooling pipe, and a plurality of through holes are opened on the inner side of the cooling pipe and is wrapped around the surface of the tank body.

[0008] Further preferably, a fixing sleeve is provided on the surface of the cooling tube, connecting rods are welded to the upper and lower sides of the fixing sleeve, and one end of the connecting rod is fixedly connected to the surface of the tank body.

[0009] Further preferably, an inspection cover is provided on the front side of the refrigeration box, and the inner surface of the inspection cover is threadedly connected to the refrigeration box via fastening screws on all sides.

[0010] Further preferably, the tank cover is arranged on the top of the tank body, the tank body and the tank cover are connected by a flange, and a sealing ring is arranged on the inner side of the flange, and a feed port is arranged on the top of the tank cover.

[0011] Further preferably, the holder is welded to the upper and lower sides of the refrigeration box, and the filter is clamped in the holder.

[0012] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0013] 1. The utility model can suck the outside air into the refrigeration box through the fan, and can cool the air through the semiconductor refrigeration rod to convert it into cold wind. The cold wind enters the cooling pipe through the connecting pipe, and is discharged through the through hole arranged on the inner side of the cooling pipe to blow to the surface of the tank body, cooling it and lowering the temperature of the environment around the tank body, avoiding the splashing of liquid nitrogen inside due to temperature difference, and reducing safety hazards.

[0014] 2. The utility model can limit and fix the cooling pipe by providing a fixing sleeve and a connecting rod to prevent it from falling off. By providing an inspection cover, it is convenient for workers to take out the filter for cleaning or replacement. By providing a sealing ring on the inner side of the flange, the sealing effect between the tank body and the tank cover can be improved to avoid gas leakage. By providing a filter, the inhaled air can be filtered to avoid dust in the air.

[0015] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 This is a structural schematic diagram of the utility model when the tank body and tank cover are disassembled;

[0019] Figure 3 This is a schematic diagram of the cooling component structure of the utility model;

[0020] Figure 4 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0021] Figure numerals: 1, tank body; 2, bracket; 3, cooling component; 301, refrigeration box; 302, semiconductor refrigeration rod; 303, filter; 304, fan; 305, seat; 306, connecting pipe; 4, inspection cover; 5, cooling pipe; 6, flange; 7, tank cover; 8, feed port; 9, sealing ring; 10, fixing sleeve; 11, connecting rod. DETAILED DESCRIPTION

[0022] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0023] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0024] Example 1

[0025] like Figure 1-4 As shown, the embodiment of the utility model provides a liquid nitrogen tank device for preventing liquid nitrogen from splashing, including a tank body 1, a flange 6, a tank cover 7 and a sealing ring 9. Brackets 2 are welded around the bottom of the tank body 1. A cooling component 3 is arranged at the bottom of the tank body 1. The cooling component 3 includes a refrigeration box 301, a semiconductor refrigeration rod 302, a filter 303, a fan 304, a holder 305 and a connecting pipe 306. The refrigeration box 301 is fixedly connected to the middle end of the bottom of the tank body 1, the fan 304 is arranged on the left side of the refrigeration box 301, the semiconductor refrigeration rod 302 is fixedly connected to the right side of the bottom of the inner cavity of the refrigeration box 301, the connecting pipe 306 is connected to the right side of the refrigeration box 301, one end of the connecting pipe 306 is connected to the cooling pipe 5, and the inner side of the cooling pipe 5 is provided with a plurality of through holes and is wrapped around the surface of the tank body 1.

[0026] The outside air can be sucked into the refrigeration box 301 through the fan 304, and the air can be cooled by the semiconductor refrigeration rod 302 to be converted into cold wind. The cold wind enters the cooling tube 5 through the connecting tube 306, and is discharged through the through holes provided on the inner side of the cooling tube 5 to blow toward the surface of the tank body 1, cooling it and lowering the ambient temperature of the tank body 1, thereby avoiding splashing of liquid nitrogen inside due to temperature difference and reducing safety hazards.

[0027] Example 2

[0028] In one embodiment, a fixed sleeve 10 is provided on the surface of the cooling tube 5, and connecting rods 11 are welded on the upper and lower sides of the fixed sleeve 10, and one end of the connecting rod 11 is fixedly connected to the surface of the tank body 1, and an inspection cover 4 is provided on the front side of the refrigeration box 301, and the inner surface of the inspection cover 4 is threadedly connected to the refrigeration box 301 by fastening screws. The tank cover 7 is arranged on the top of the tank body 1, and the tank body 1 and the tank cover 7 are connected by a flange 6, and the sealing ring 9 is arranged on the inner side of the flange 6. A feed port 8 is provided on the top of the tank cover 7, and a holder 305 is welded to the upper and lower sides of the refrigeration box 301, and a filter screen 303 is clamped in the holder 305.

[0029] By providing a fixing sleeve 10 and a connecting rod 11, the cooling tube 5 can be limited and fixed to prevent it from falling off. By providing an inspection cover 4, it is convenient for the staff to take out the filter 303 for cleaning or replacement. By providing a sealing ring 9 on the inner side of the flange 6, the sealing effect between the tank body 1 and the tank cover 7 can be improved to prevent gas leakage. By providing a filter 303, the inhaled air can be filtered to prevent dust from being contained in the air.

[0030] When the utility model is working: first, the fan 304 is started, and the outside air is sucked into the refrigeration box 301 through the fan 304. The air is first filtered by the filter 303 to absorb dust in the outside air. Then, the air can be cooled by the semiconductor refrigeration rod 302 to be converted into cold wind. The cold wind enters the cooling tube 5 through the connecting pipe 306, and is discharged to the surface of the tank body 1 through the through hole provided on the inner side of the cooling tube 5, cooling it, reducing the temperature of the environment around the tank body 1, avoiding the splashing of internal liquid nitrogen due to temperature difference, and reducing safety hazards.

[0031] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A liquid nitrogen tank device for preventing liquid nitrogen from splashing, characterized in that: The invention comprises a tank body (1), a flange (6), a tank cover (7) and a sealing ring (9); brackets (2) are welded around the bottom of the tank body (1); a cooling component (3) is arranged at the bottom of the tank body (1); the cooling component (3) comprises a refrigeration box (301), a semiconductor refrigeration rod (302), a filter (303), a fan (304), a holder (305) and a connecting pipe (306); the refrigeration box (301) is fixedly connected to the middle end of the bottom of the tank body (1).

2. A liquid nitrogen tank device for preventing liquid nitrogen from splashing according to claim 1, characterized in that: The fan (304) is arranged on the left side of the refrigeration box (301), the semiconductor refrigeration rod (302) is fixedly connected to the right side of the bottom of the inner cavity of the refrigeration box (301), the connecting pipe (306) is connected to the right side of the refrigeration box (301), one end of the connecting pipe (306) is connected to the cooling pipe (5), and the inner side of the cooling pipe (5) is provided with a plurality of through holes and is wound around the surface of the tank body (1).

3. A liquid nitrogen tank device for preventing liquid nitrogen from splashing according to claim 2, characterized in that: The surface of the cooling pipe (5) is sleeved with a fixing sleeve (10), and connecting rods (11) are welded to the upper and lower sides of the fixing sleeve (10), and one end of the connecting rod (11) is fixedly connected to the surface of the tank body (1).

4. A liquid nitrogen tank device for preventing liquid nitrogen from splashing according to claim 1, characterized in that: The front side of the refrigeration box (301) is provided with an inspection cover (4), and the inner surface of the inspection cover (4) is threadedly connected to the refrigeration box (301) via fastening screws.

5. A liquid nitrogen tank device for preventing liquid nitrogen from splashing according to claim 1, characterized in that: The tank cover (7) is arranged on the top of the tank body (1); the tank body (1) and the tank cover (7) are connected via a flange (6); a sealing ring (9) is arranged on the inner side of the flange (6); and a feed port (8) is arranged on the top of the tank cover (7).

6. A liquid nitrogen tank device for preventing liquid nitrogen from splashing according to claim 1, characterized in that: The holder (305) is welded to the upper and lower sides of the refrigeration box (301), and the filter (303) is clamped in the holder (305).

Images