Liquid nitrogen supply tank with protection function

Abstract

The liquid nitrogen supply tank with the protection function comprises a base, a supply tank body with an opening in the top is fixed to the base, a clamping groove is fixed to the top of the supply tank body, a limiting plate is movably connected in the clamping groove in a clamped mode, a pump body is fixedly installed on the base, and a first cooling pipe is fixedly installed at a liquid inlet of the pump body. The first cooling pipe is spirally arranged on the peripheral wall of the supply tank in a surrounding mode, a heat exchange pipe is installed on a channel of the first cooling pipe, an air cooling assembly is arranged on one side of the heat exchange pipe, one end of the first cooling pipe is fixedly connected with a second cooling pipe arranged in the supply tank, and one end of the second cooling pipe is connected with a liquid outlet of the pump body through a backflow pipe. A supporting seat used for placing the inner container is movably clamped in the supply tank, and a buffering assembly is arranged at the bottom of the supporting seat. The liquid nitrogen supply tank with the protection function can effectively avoid accidents caused by cold and hot impact when the inner container is filled with liquid nitrogen.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid nitrogen supply tank technical field, concretely is a liquid nitrogen supply tank with protection function. BACKGROUND

[0002] Liquid nitrogen refers to liquid nitrogen. Liquid nitrogen is inert, colorless, odorless, non-corrosive, non-flammable, and extremely low temperature liquid, and a large amount of heat is absorbed when vaporizing, causing frostbite. Nitrogen constitutes most of the atmosphere (volume ratio 78.03%, weight ratio 75.5%). At normal pressure, the boiling point of nitrogen is-196.56℃, and 1 cubic meter of liquid nitrogen can expand to 696 cubic meters of pure gaseous nitrogen (21℃). If pressurized, liquid nitrogen can be obtained at a higher temperature.

[0003] When liquid nitrogen is filled into the supply pipe, the temperature difference between the supply tank and the liquid nitrogen may cause cold and hot impact, which may cause accidents. Therefore, a liquid nitrogen supply tank with protection function is provided to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the utility model provides a liquid nitrogen supply tank with protection function, which solves the existing problems.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a liquid nitrogen supply tank with protection function, comprising a base, the base is fixed with a supply tank with an open top, the supply tank top is fixed with a clamping groove, the clamping groove is movably connected with a limiting plate, the base is fixedly installed with a pump body, the liquid inlet of the pump body is fixedly installed with a first cooling pipe, the first cooling pipe is spirally arranged on the outer wall of the supply tank, the passage on the first cooling pipe is installed with a heat exchange pipe, one side of the heat exchange pipe is provided with a air cooling assembly, one end of the first cooling pipe is fixedly connected with a second cooling pipe arranged in the supply tank, one end of the second cooling pipe is connected with the liquid outlet of the pump body through a backflow pipe, the inside of the supply tank is provided with a support seat movably connected with an inner container, the bottom of the support seat is provided with a buffer assembly.

[0006] Preferably, the limiting plate is matched with the inner size of the clamping groove, and the lower surface of the limiting plate is fixedly bonded with a soft rubber layer.

[0007] Preferably, the air cooling assembly comprises a bracket fixedly installed on the base, the bracket is fixedly installed with a motor, the output end of the motor is installed with a rotating shaft, and the rotating shaft is fixedly installed with a fan blade.

[0008] Preferably, the second cooling pipe is arranged in the cavity of the supply tank in a serpentine shape.

[0009] Preferably, the buffer assembly comprises telescopic rods fixed between the four corners of the lower wall of the support base and the inner bottom wall of the supply tank, and springs are sleeved on the outer periphery of the telescopic rods.

[0010] Preferably, a controller for controlling the power components is fixedly installed on the base.

[0011] Advantages

[0012] The utility model provides a liquid nitrogen supply tank with protection function compares with prior art has the following advantages:

[0013] 1、 this liquid nitrogen supply tank with protection function, the liner is installed in the supply tank inside, when input liquid nitrogen to the liner inside, start the pump body can circulate the cooling liquid in the first cooling pipe, the second cooling pipe, the reflux pipe and flow, so that the cooling liquid can take away the heat of the surface of the supply tank and the heat inside the supply tank and precool it, thereby precooling the liner inside the supply tank, which can effectively prevent accidents caused by cold and hot impact when filling liquid nitrogen in the liner.

[0014] 2、 this liquid nitrogen supply tank with protection function, the support base bottom is provided with buffer assembly, and the buffer assembly comprises telescopic rods and springs, when input liquid nitrogen to the liner inside, can cause certain impact to the liner, so that the telescopic rods and springs can buffer the impact to a certain extent, avoid the impact to the structure damage of the liner, improve the protection effect of the liner. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the local structure schematic diagram of the utility model;

[0017] Figure 3 It is the utility model Figure 1 Local enlarged structure schematic diagram.

[0018] In the drawing: 1, base; 2, supply tank; 3, clamping groove; 4, limiting plate; 5, pump body; 6, first cooling pipe; 7, heat exchange pipe; 8, air cooling assembly; 801, support; 802, motor; 803, rotating shaft; 804, fan blade; 9, second cooling pipe; 10, reflux pipe; 11, liner; 12, support base; 13, telescopic rod; 14, spring. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figures 1-3 The present application provides two technical solutions:

[0021] Embodiment one:

[0022] A liquid nitrogen supply tank with a protection function, comprising a base 1, the base 1 is fixed with a top opening supply tank 2, the supply tank 2 top is fixed with a clamping groove 3, the clamping groove 3 is movably connected with a limiting plate 4, the base 1 is fixedly installed with a pump body 5, the inlet of the pump body 5 is fixedly installed with a first cooling pipe 6, the first cooling pipe 6 is spirally arranged on the outer wall of the supply tank 2, the passageway of the first cooling pipe 6 is installed with a heat exchange pipe 7, one side of the heat exchange pipe 7 is provided with an air cooling assembly 8, one end of the first cooling pipe 6 is fixedly connected with a second cooling pipe 9 arranged in the supply tank 2, one end of the second cooling pipe 9 is connected with the outlet of the pump body 5 through a backflow pipe 10, the inside of the supply tank 2 is provided with a support seat 12 movably connected with an inner container 11, the bottom of the support seat 12 is provided with a buffer assembly.

[0023] Embodiment two:

[0024] The main difference from embodiment one is:

[0025] The application discloses a liquid nitrogen supply tank with a protection function, wherein the outer size of a limiting plate 4 is matched with the inner size of a clamping groove 3, the lower surface of the limiting plate 4 is fixedly connected with a soft rubber layer, the inner container 11 is limited by being movably clamped in the clamping groove 3 through the limiting plate 4; the air cooling assembly 8 comprises a support 801 fixedly installed on the base 1, a motor 802 fixedly installed on the support 801, a rotating shaft 803 installed at the output end of the motor 802, and a fan blade 804 fixedly installed on the rotating shaft 803; cooling liquid circulates in the first cooling pipe 6, the second cooling pipe 9 and the return pipe 10 to flow, so that the cooling liquid can take away the heat on the surface of the supply tank 2 and the heat in the supply tank 2 to precool the supply tank 2; when the cooling liquid passes through the heat exchange pipe 7, the motor 802 is started to drive the rotating shaft 803 to rotate and further drive the fan blade 804 to rotate to blow the heat exchange pipe 7 through the fan blade 804 to cool the cooling liquid, so that the heat absorption capacity is improved; the second cooling pipe 9 is arranged in a snakelike mode in the inner cavity of the supply tank 2, and the second cooling pipe 9 can take away the heat in the inner cavity of the supply tank 2; the buffer assembly comprises an expansion rod 13 fixed between the lower wall of the supporting seat 12 and the bottom wall in the supply tank 2, and a spring 14 sleeved on the outer periphery of the expansion rod 13; when liquid nitrogen is input into the inner container 11, a certain impact is caused on the inner container 11, so that the expansion rod 13 and the spring 14 can buffer the impact to a certain extent, the impact is avoided to cause structural damage to the inner container 11, and the protection of the inner container 11 is improved; the base 1 is fixedly installed with a controller for controlling the electric power components, and the electric power components are automatically controlled.

[0026] When the liquid nitrogen supply tank with the protection function is used, the inner container 11 is installed in the supply tank 2, the pump body 5 is started to circulate the cooling liquid in the first cooling pipe 6, the second cooling pipe 9 and the return pipe 10 to flow when liquid nitrogen is input into the inner container 11, so that the cooling liquid can take away the heat on the surface of the supply tank 2 and the heat in the supply tank 2 to precool the supply tank 2, thereby precooling the inner container 11 in the supply tank 2, and accidents caused by cold and hot impact when the inner container 11 is filled with liquid nitrogen can be effectively avoided; in addition, the buffer assembly is arranged at the bottom of the supporting seat 12, the buffer assembly comprises the expansion rod 13 and the spring 14, liquid nitrogen is input into the inner container 11, a certain impact is caused on the inner container 11, the expansion rod 13 and the spring 14 can buffer the impact to a certain extent, the impact is avoided to cause structural damage to the inner container 11, and the protection of the inner container 11 is improved.

[0027] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.

[0028] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0029] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A liquid nitrogen supply tank with a protection function, comprising a base (1), characterized in that: The base (1) is fixed with a top opening supply tank (2), the supply tank (2) top is fixed with a clamping groove (3), the clamping groove (3) is movably connected with a limiting plate (4), the base (1) is fixedly installed with a pump body (5), the liquid inlet of the pump body (5) is fixedly installed with a first cooling pipe (6), the first cooling pipe (6) is spirally arranged on the outer wall of the supply tank (2), the passageway of the first cooling pipe (6) is installed with a heat exchange pipe (7), one side of the heat exchange pipe (7) is provided with an air cooling assembly (8), one end of the first cooling pipe (6) is fixedly connected with a second cooling pipe (9) arranged in the supply tank (2), one end of the second cooling pipe (9) is connected with the liquid outlet of the pump body (5) through a backflow pipe (10), the inside of the supply tank (2) is provided with a support seat (12) movably connected with an inner container (11), the bottom of the support seat (12) is provided with a buffer assembly.

2. The liquid nitrogen supply tank with a protection function according to claim 1, characterized in that: The limiting plate (4) is matched with the inner size of the clamping groove (3), and the lower surface of the limiting plate (4) is fixedly bonded with a soft rubber layer.

3. The liquid nitrogen supply tank with a protection function according to claim 1, characterized in that: The air cooling assembly (8) comprises a bracket (801) fixedly installed on the base (1), the bracket (801) is fixedly installed with a motor (802), the output end of the motor (802) is installed with a rotating shaft (803), and the rotating shaft (803) is fixedly installed with a fan blade (804).

4. The liquid nitrogen supply tank with a protection function according to claim 1, characterized in that: The second cooling pipe (9) is arranged in the inner cavity of the supply tank (2) in a serpentine shape.

5. The liquid nitrogen supply tank with a protection function according to claim 1, characterized in that: The buffer assembly comprises a telescopic rod (13) fixed between the lower wall of the support seat (12) and the inner bottom wall of the supply tank (2), and the telescopic rod (13) is externally sleeved with a spring (14).

6. The liquid nitrogen supply tank with a protection function according to claim 1, characterized in that: The base (1) is fixedly installed with a controller for controlling the power components.

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