Liquid nitrogen cold heat separation device

Abstract

The utility model provides a kind of liquid nitrogen cold heat separation device, comprising: liquid nitrogen raw material storage tank, the liquid outlet of liquid nitrogen raw material storage tank is connected in liquid nitrogen cold heat separation equipment by conveying pipeline, nitrogen gas conveying pipeline is equipped on the upper end of the liquid nitrogen cold heat separation equipment, nitrogen gas conveying pipeline is connected in nitrogen storage device, liquid nitrogen conveying pipeline is equipped in the lower end of the liquid nitrogen cold heat separation equipment, liquid nitrogen conveying pipeline is connected in liquid nitrogen storage device, the liquid nitrogen cold heat separation equipment includes several gas-liquid separation tank, and gas-liquid separation tank is connected in parallel between, one side of the gas-liquid separation tank is equipped with refrigeration compressor, the gas-liquid separation tank, refrigeration compressor are installed in equipment box, the utility model not only can realize liquid nitrogen gas-liquid cold heat separation, and, according to different needs adjustment separation tank temperature, so that separation operation is more accurate.

Description

Technical Field

[0001] This utility model relates to the field of gas production and utilization technology, specifically to a liquid nitrogen cold and hot separation 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 liquid nitrogen gas-liquid separation device (application number: 201720870035.X), including an outer tank and an inner tank shell disposed inside the outer tank. The inner tank shell has an upper and a lower partition plate, which divide the inner tank shell from top to bottom into a nitrogen inlet buffer chamber, a heat exchange chamber, and a sterile liquid nitrogen storage chamber. The heat exchange chamber has several condenser pipes connecting the nitrogen inlet buffer chamber and the sterile liquid nitrogen storage chamber. A sterile liquid nitrogen outlet, connected to the sterile liquid nitrogen storage chamber, is located on the lower outer wall of the outer tank shell. The sterile liquid nitrogen outlet is connected to a gas-liquid separation device via a discharge pipe. However, its structure is relatively complex and its operation is inconvenient. Utility Model Content

[0006] The technical problem solved by this utility model is to provide a liquid nitrogen cold and hot separation device to solve the problems mentioned in the background art.

[0007] The technical problem solved by this utility model is achieved by the following technical solution: A liquid nitrogen cold and heat separation device, comprising: a liquid nitrogen raw material storage tank, the liquid outlet of the liquid nitrogen raw material storage tank being connected to a liquid nitrogen cold and heat separation device via a conveying pipe, a nitrogen conveying pipe being provided at the upper end of the liquid nitrogen cold and heat separation device and connected to a nitrogen storage device, a liquid nitrogen conveying pipe being provided at the lower end of the liquid nitrogen cold and heat separation device and connected to a liquid nitrogen storage device, the liquid nitrogen cold and heat separation device comprising a plurality of gas-liquid separation tanks, the gas-liquid separation tanks being arranged in parallel, a refrigeration compressor being provided on one side of each gas-liquid separation tank, the gas-liquid separation tanks and the refrigeration compressor being installed in a device housing, each gas-liquid separation tank comprising a separation tank body, a liquid nitrogen input terminal being provided on one side of the upper end of the separation tank body, a nitrogen output connector being provided at the upper end of the separation tank body, a liquid nitrogen output connector being provided at the lower end of the separation tank body, a temperature control circulation pipe being provided inside the separation tank body, one end of the temperature control circulation pipe being connected to the refrigeration compressor via a circulation input pipe and the other end being connected to the refrigeration compressor via a circulation output pipe.

[0008] Furthermore, the liquid nitrogen raw material storage tank includes a storage tank body, a discharge port is provided on one side of the lower end of the storage tank body, a primary filter tank is provided on the discharge port, and a liquid nitrogen injection port is provided at the upper end of the storage tank body.

[0009] Furthermore, the lower end of the storage tank body is provided with several tank support frames, the lower end of the tank support frames is provided with several tank support pads, and the tank support pads are provided with several bolt fixing holes.

[0010] Furthermore, a gas filtration device is provided between the liquid nitrogen raw material storage tank and the liquid nitrogen cold and heat separation equipment. The gas filtration device includes a filtration conveying pipeline, and the filtration conveying pipeline is equipped with a primary filtration tank, a secondary filtration tank, and a filtration control valve.

[0011] Furthermore, the liquid nitrogen storage device includes a storage bottle body, which is mounted on a bottle mounting bracket on a bottle fixing base. One end of the storage bottle body is provided with a bottle port, and an input connection pipe is provided on the bottle port.

[0012] Furthermore, the nitrogen storage device includes a storage bottle body, which is mounted on a bottle mounting bracket on a bottle fixing base. One end of the storage bottle body is provided with a bottle port, and an input connection pipe is provided on the bottle port.

[0013] Compared with the prior art, the advantages of this utility model are: this utility model can not only realize the cold and hot separation of liquid nitrogen gas and liquid, but also adjust the temperature of the separation tank according to different needs, making the separation operation more precise. 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 liquid nitrogen raw material storage tank of this utility model.

[0016] Figure 3 This is a schematic diagram of the gas filtration device of this utility model.

[0017] Figure 4 This is a schematic diagram of the gas-liquid separator of this utility model.

[0018] Figure 5 This is a schematic diagram of the nitrogen storage 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 thermal separation device includes: a liquid nitrogen raw material storage tank 1, the liquid outlet of which is connected to a liquid nitrogen thermal separation device 3 via a conveying pipe; a nitrogen conveying pipe 5 is provided at the upper end of the liquid nitrogen thermal separation device 3, which is connected to a nitrogen storage device 7; a liquid nitrogen conveying pipe 4 is provided at the lower end of the liquid nitrogen thermal separation device 3, which is connected to a liquid nitrogen storage device 6; the liquid nitrogen thermal separation device 3 includes a plurality of gas-liquid separation tanks, which are arranged in parallel; and a gas-liquid separation tank is provided on one side. The equipment includes a refrigeration compressor. The gas-liquid separator and the refrigeration compressor are installed inside the equipment housing. The gas-liquid separator includes a separator body 31. A liquid nitrogen input terminal 32 is provided on one side of the upper end of the separator body 31. A nitrogen output connector 33 is provided at the upper end of the separator body 31. A liquid nitrogen output connector 34 is provided at the lower end of the separator body 31. A temperature control circulation pipe 35 is provided inside the separator body 31. One end of the temperature control circulation pipe 35 is connected to the refrigeration compressor through a circulation input pipe 36, and the other end is connected to the refrigeration compressor through a circulation output pipe 37.

[0022] Example 2

[0023] like Figures 1-5 As shown, a liquid nitrogen thermal separation device includes: a liquid nitrogen raw material storage tank 1, the liquid outlet of the liquid nitrogen raw material storage tank 1 being connected to a liquid nitrogen thermal separation device 3 via a conveying pipe; a nitrogen conveying pipe 5 being provided at the upper end of the liquid nitrogen thermal separation device 3, the nitrogen conveying pipe 5 being connected to a nitrogen storage device 7; a liquid nitrogen conveying pipe 4 being provided at the lower end of the liquid nitrogen thermal separation device 3, the liquid nitrogen conveying pipe 4 being connected to a liquid nitrogen storage device 6; the liquid nitrogen thermal separation device 3 including a plurality of gas-liquid separation tanks arranged in parallel; a refrigeration compressor being provided on one side of each gas-liquid separation tank; the gas-liquid separation tanks and the refrigeration compressor being installed inside an equipment housing; the liquid nitrogen raw material storage tank 1 including a storage tank body 11; a discharge port 13 being provided on one side of the lower end of the storage tank body 11; a primary filter tank 15 being provided on the discharge port 13; and a liquid nitrogen injection port 14 being provided at the upper end of the storage tank body 11. The storage tank body 11 is provided with several tank support frames 12 at its lower end, and several tank support pads are provided at the lower end of the tank support frames 12. Several bolt fixing holes are provided on the tank support pads.

[0024] Example 3

[0025] like Figures 1-5 As shown, a liquid nitrogen thermal separation device includes: a liquid nitrogen raw material storage tank 1, the liquid outlet of the liquid nitrogen raw material storage tank 1 being connected to a liquid nitrogen thermal separation device 3 via a conveying pipe; a nitrogen conveying pipe 5 being provided at the upper end of the liquid nitrogen thermal separation device 3, the nitrogen conveying pipe 5 being connected to a nitrogen storage device 7; a liquid nitrogen conveying pipe 4 being provided at the lower end of the liquid nitrogen thermal separation device 3, the liquid nitrogen conveying pipe 4 being connected to a liquid nitrogen storage device 6; the liquid nitrogen thermal separation device 3 including a plurality of gas-liquid separation tanks arranged in parallel; a refrigeration compressor being provided on one side of each gas-liquid separation tank; the gas-liquid separation tanks and the refrigeration compressor being installed inside an equipment housing; a gas filtration device 2 being provided between the liquid nitrogen raw material storage tank 1 and the liquid nitrogen thermal separation device 3; the gas filtration device 2 including a filtration conveying pipe 21, a primary filtration tank 23, a secondary filtration tank 24, and a filtration control valve 22 being provided on the filtration conveying pipe 21.

[0026] Example 4

[0027] like Figures 1-5As shown, a liquid nitrogen thermal separation device includes: a liquid nitrogen raw material storage tank 1, the liquid outlet of the liquid nitrogen raw material storage tank 1 being connected to a liquid nitrogen thermal separation device 3 via a conveying pipe; a nitrogen conveying pipe 5 being provided at the upper end of the liquid nitrogen thermal separation device 3, the nitrogen conveying pipe 5 being connected to a nitrogen storage device 7; a liquid nitrogen conveying pipe 4 being provided at the lower end of the liquid nitrogen thermal separation device 3, the liquid nitrogen conveying pipe 4 being connected to a liquid nitrogen storage device 6; the liquid nitrogen thermal separation device 3 including a plurality of gas-liquid separation tanks arranged in parallel; a refrigeration compressor being provided on one side of each gas-liquid separation tank; the gas-liquid separation tanks and the refrigeration compressor being installed inside an equipment housing; and a liquid nitrogen storage device 6 including a storage bottle body 61, the storage bottle body 61 being mounted on a bottle body fixing seat 63 via a bottle body mounting bracket 62; a bottle body port 64 being provided at one end of the storage bottle body 61, and an input connection pipe 65 being provided on the bottle body port 64.

[0028] Example 5

[0029] like Figures 1-5 As shown, a liquid nitrogen thermal separation device includes: a liquid nitrogen raw material storage tank 1, the liquid outlet of the liquid nitrogen raw material storage tank 1 being connected to a liquid nitrogen thermal separation device 3 via a conveying pipe; a nitrogen conveying pipe 5 being provided at the upper end of the liquid nitrogen thermal separation device 3, the nitrogen conveying pipe 5 being connected to a nitrogen storage device 7; a liquid nitrogen conveying pipe 4 being provided at the lower end of the liquid nitrogen thermal separation device 3, the liquid nitrogen conveying pipe 4 being connected to a liquid nitrogen storage device 6; the liquid nitrogen thermal separation device 3 including a plurality of gas-liquid separation tanks arranged in parallel; a refrigeration compressor being provided on one side of each gas-liquid separation tank; the gas-liquid separation tanks and the refrigeration compressor being installed inside an equipment housing; and a nitrogen storage device 7 including a storage bottle body 61, the storage bottle body 61 being mounted on a bottle body fixing seat 63 via a bottle body mounting bracket 62; a bottle body port 64 being provided at one end of the storage bottle body 61, and an input connection pipe 65 being provided on the bottle body port 64.

[0030] The liquid nitrogen raw material storage tank 1 of this utility model has its outlet port connected to a liquid nitrogen thermal separation device 3 via a conveying pipe. The liquid nitrogen thermal separation device 3 has a nitrogen conveying pipe 5 at its upper end, which is connected to a nitrogen storage device 7. The liquid nitrogen thermal separation device 3 has a liquid nitrogen conveying pipe 4 at its lower end, which is connected to a liquid nitrogen storage device 6. The liquid nitrogen thermal separation device 3 includes several gas-liquid separation tanks, which are arranged in parallel. A refrigeration compressor is provided on one side of each gas-liquid separation tank. The gas-liquid separation tanks and the refrigeration compressor are installed inside the equipment housing. This not only enables the thermal separation of liquid nitrogen gas and liquid, but also allows the temperature of the separation tanks to be adjusted according to different needs, making the separation operation more precise.

[0031] 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 cold-heat separation device, comprising: A liquid nitrogen raw material storage tank (1) is characterized in that: the liquid outlet of the liquid nitrogen raw material storage tank (1) is connected to a liquid nitrogen thermal separation device (3) via a conveying pipe; a nitrogen conveying pipe (5) is provided at the upper end of the liquid nitrogen thermal separation device (3), and the nitrogen conveying pipe (5) is connected to a nitrogen storage device (7); a liquid nitrogen conveying pipe (4) is provided at the lower end of the liquid nitrogen thermal separation device (3), and the liquid nitrogen conveying pipe (4) is connected to a liquid nitrogen storage device (6); the liquid nitrogen thermal separation device (3) includes several gas-liquid separation tanks, which are arranged in parallel; a refrigeration compressor is provided on one side of each gas-liquid separation tank. The gas-liquid separator and the refrigeration compressor are installed inside the equipment box. The gas-liquid separator includes a separator body (31). A liquid nitrogen input terminal (32) is provided on one side of the upper end of the separator body (31). A nitrogen output connector (33) is provided at the upper end of the separator body (31). A liquid nitrogen output connector (34) is provided at the lower end of the separator body (31). A temperature control circulation pipe (35) is provided inside the separator body (31). One end of the temperature control circulation pipe (35) is connected to the refrigeration compressor through a circulation input pipe (36), and the other end is connected to the refrigeration compressor through a circulation output pipe (37).

2. The liquid nitrogen cold and hot separation device according to claim 1, characterized in that: The liquid nitrogen raw material storage tank (1) includes a storage tank body (11), a discharge port (13) is provided on one side of the lower end of the storage tank body (11), a primary filter tank (15) is provided on the discharge port (13), and a liquid nitrogen injection port (14) is provided at the upper end of the storage tank body (11).

3. The liquid nitrogen cold and hot separation device according to claim 2, characterized in that: The storage tank body (11) is provided with several tank support frames (12) at its lower end, and several tank support pads are provided at the lower end of the tank support frames (12), and several bolt fixing holes are provided on the tank support pads.

4. The liquid nitrogen cold and hot separation device according to claim 1, characterized in that: A gas filtration device (2) is provided between the liquid nitrogen raw material storage tank (1) and the liquid nitrogen cold and heat separation equipment (3). The gas filtration device (2) includes a filter conveying pipe (21), and a primary filter tank (23), a secondary filter tank (24), and a filter control valve (22) are provided on the filter conveying pipe (21).

5. The liquid nitrogen cold and hot separation device according to claim 1, characterized in that: The liquid nitrogen storage device (6) includes a storage bottle body (61), which is mounted on a bottle fixing seat (63) via a bottle mounting bracket (62). One end of the storage bottle body (61) is provided with a bottle port (64), and an input connection pipe (65) is provided on the bottle port (64).

6. The liquid nitrogen cold and hot separation device according to claim 1, characterized in that: The nitrogen storage device (7) includes a storage bottle body (61), which is mounted on a bottle fixing seat (63) via a bottle mounting bracket (62). One end of the storage bottle body (61) is provided with a bottle port (64), and an input connection pipe (65) is provided on the bottle port (64).

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