Liquid nitrogen cryogenic recovery device

Abstract

The utility model provides a liquid nitrogen copious cooling recovery device which comprises a copious cooling circulation recovery tank body, the copious cooling circulation recovery tank body is installed on an equipment supporting bottom plate, and an output port of the copious cooling circulation recovery tank body is connected to an input port of a refrigerating machine through a cooling liquid output pipe. An output port of the refrigerating machine is connected to an input port of the cryogenic circulation recovery tank body through a cooling liquid input pipe, a refrigerating controller is arranged on the cooling liquid output pipe, a refrigerant control valve is arranged on the cooling liquid input pipe, a nitrogen input port is formed in the cryogenic circulation recovery tank body, and a nitrogen outlet is formed in the nitrogen input port. A liquid nitrogen discharge port is formed in the lower end of the cryogenic circulation recovery tank body, the nitrogen input port is connected to a liquid nitrogen recovery pipe, and the liquid nitrogen discharge port is connected to a liquid nitrogen storage tank through a liquid nitrogen conveying pipe. And deployment is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas circulation recovery device technical field, concretely is a kind of liquid nitrogen cryogenic recovery device. BACKGROUND

[0002] Nitrogen is a chemical element with the chemical symbol N and atomic number 7. In nature, nitrogen mainly exists in elemental form, which is nitrogen gas (N2). Nitrogen gas is a colorless, odorless and relatively inert gas, accounting for about 78% of the total volume of the Earth's atmosphere, and is the most abundant component in the atmosphere.

[0003] Nitrogen plays a very important role in living organisms. It is a key element of proteins, nucleic acids and other life macromolecules, and is essential for the structure and function of living organisms. In the ecological system, nitrogen cycle is one of the core links, covering nitrogen fixation, ammonification, nitrification and denitrification, etc. These processes maintain the dynamic balance of nitrogen elements in the biosphere and environment.

[0004] In the industrial field, nitrogen is widely used. 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. In addition, liquid nitrogen is widely used in freezing, medical treatment and other fields due to its extremely low temperature, such as frozen preservation of biological samples and low-temperature treatment. Nitrogen compounds are diverse, not only have a profound impact on human life, but also play an important role in scientific research.

[0005] A kind of liquid nitrogen deep cooling recovery system for loading waste gas is disclosed in Chinese patent (application number: 202421350221.7), relating to waste gas technical field.The technical scheme is as follows: including inlet and outlet heat exchanger one, inlet and outlet heat exchanger two, two-stage cooler one, two-stage cooler two, liquid nitrogen cooler one and liquid nitrogen cooler two;The pipe passage inlet of liquid nitrogen cooler one and liquid nitrogen cooler two is connected with liquid nitrogen feeding pipeline and low-temperature nitrogen feeding pipeline, valve one and valve two are arranged on liquid nitrogen feeding pipeline, valve three and valve four are arranged on low-temperature nitrogen feeding pipeline, valve five and valve six are respectively arranged on the pipe passage outlet pipeline of liquid nitrogen cooler one and liquid nitrogen cooler two, valve seven and valve eight are respectively arranged on the nitrogen outlet pipeline of liquid nitrogen cooler one and liquid nitrogen cooler two. However, its recovery efficiency is low, the use cost is high, and it is not convenient to deploy. UTILITY MODEL CONTENT

[0006] The technical problem solved by the utility model is to provide a liquid nitrogen cryogenic recovery device to solve the problems raised in the above background.

[0007] The technical problems solved by the utility model adopt the following technical scheme to realize: a liquid nitrogen deep cooling recovery device, comprising: a deep cooling circulation recovery tank body, the deep cooling circulation recovery tank body is installed on the equipment support bottom plate, the output of the deep cooling circulation recovery tank body is connected to the input of the refrigerator through the cooling liquid output pipe, the output of the refrigerator is connected to the input of the deep cooling circulation recovery tank body through the cooling liquid input pipe, the cooling liquid output pipe is equipped with a refrigeration controller, the cooling liquid input pipe is equipped with a refrigerant control valve, the deep cooling circulation recovery tank body is equipped with a nitrogen input, the lower end of the deep cooling circulation recovery tank body is equipped with a liquid nitrogen discharge port, the nitrogen input is connected to the liquid nitrogen recovery pipe, the liquid nitrogen discharge port is connected to the liquid nitrogen storage tank through the liquid nitrogen conveying pipe, the deep cooling circulation recovery tank body comprises a recovery tank body, the recovery tank body is equipped with a refrigeration input end and a refrigeration output end, and the recovery tank body is equipped with a refrigeration pipeline.

[0008] Further, the recovery tank body comprises an inner shell and an outer shell, a heat preservation layer is arranged between the inner shell and the outer shell, and a reinforcing support ring is arranged between the inner shell and the outer shell.

[0009] Further, the refrigeration pipeline comprises a plurality of refrigeration coils, the refrigeration coils are installed on a coil support frame, and flanges are arranged at the two ends of the refrigeration coils.

[0010] Further, the liquid nitrogen storage tank is provided with a nitrogen refrigeration circulation pipe at the upper end, and the nitrogen refrigeration circulation pipe is connected to the nitrogen input through a three-way valve.

[0011] Further, the refrigeration controller comprises a controller body, the controller body is installed on a controller shell, and the controller body is provided with a control input and a control output.

[0012] Further, the liquid nitrogen storage tank comprises a storage tank body, the storage tank body is provided with an input connecting flange and an output connecting flange, and a plurality of monitoring end heads are arranged on the storage tank body.

[0013] Further, the storage tank body comprises an inner shell and an outer shell, a heat preservation layer is arranged between the inner shell and the outer shell, and a reinforcing support ring is arranged between the inner shell and the outer shell.

[0014] Further, the lower end of the storage tank body is installed on an equipment support column, the lower end of the equipment support column is provided with an equipment support base plate, and an inspection hole is arranged on the storage tank body.

[0015] Compared with the prior art, the utility model has the advantages that the utility model can realize the circulation recovery of nitrogen, and can realize the liquefaction circulation of liquid nitrogen to ensure the storage effect, and the overall design is reasonable and convenient to deploy. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the structure schematic view of the utility model.

[0017] Fig. 2 It is the refrigeration pipeline structure schematic view of the utility model.

[0018] Fig. 3 It is the deep cold cycle recovery tank body structure schematic view of the utility model.

[0019] Fig. 4 It is the refrigeration controller structure schematic view of the utility model.

[0020] Fig. 5 It is the liquid nitrogen storage tank structure schematic view of the utility model. DETAILED DESCRIPTION

[0021] In order to make the implementation technical means, creation characteristics, achieve the purpose and function of the utility model easy to understand, the following specific diagram is combined, and the utility model is further described, and it should be explained in the description of the utility model that unless there are explicit provisions and limitations, the terms "installation", "link", "connection" should be understood broadly, for example, it can be fixedly connected, can be detachably connected, or integrally connected, which can be mechanically connected or electrically connected, and can be directly connected or indirectly connected through an intermediate medium, and can be connected inside two elements.

[0022] Example 1

[0023] As Figs. 1-5 shown, a liquid nitrogen deep cold recovery device, comprising: a deep cold cycle recovery tank body 2, the deep cold cycle recovery tank body 2 is installed on the equipment support base plate 1, the output of the deep cold cycle recovery tank body 2 is connected to the input of the refrigerator 5 through the cooling liquid output pipe 3, the output of the refrigerator 5 is connected to the input of the deep cold cycle recovery tank body 2 through the cooling liquid input pipe 6, the cooling liquid output pipe 3 is provided with a refrigeration controller 4, the cooling liquid input pipe 6 is provided with a refrigerant control valve 7, the deep cold cycle recovery tank body 2 is provided with a nitrogen input, the lower end of the deep cold cycle recovery tank body 2 is provided with a liquid nitrogen discharge port, the nitrogen input is connected to the liquid nitrogen recovery pipe, the liquid nitrogen discharge port is connected to the liquid nitrogen storage tank 9 through the liquid nitrogen conveying pipe 10, the deep cold cycle recovery tank body 2 comprises a recovery tank body 31, the recovery tank body 31 is provided with a refrigeration input end 32 and a refrigeration output end 33, and the recovery tank body 31 is provided with a refrigeration pipeline.

[0024] Example 2

[0025] As Figs. 1-5As shown, a cryogenic liquid nitrogen recovery device includes: a cryogenic circulation recovery tank 2, which is mounted on an equipment support base plate 1. The output port of the cryogenic circulation recovery tank 2 is connected to the input port of a refrigeration unit 5 via a coolant output pipe 3. The output port of the refrigeration unit 5 is connected to the input port of the cryogenic circulation recovery tank 2 via a coolant input pipe 6. A refrigeration controller 4 is provided on the coolant output pipe 3. A refrigerant control valve 7 is provided on the coolant input pipe 6. A nitrogen inlet is provided on the cryogenic circulation recovery tank 2. A liquid nitrogen outlet is provided at the lower end of the cryogenic circulation recovery tank 2. The nitrogen inlet is connected to a liquid nitrogen recovery pipe. The liquid nitrogen outlet is connected to a liquid nitrogen storage tank 9 via a liquid nitrogen delivery pipe 10. The cryogenic circulation recovery tank 2 includes a recovery tank body 31. The recovery tank body 31 is provided with a refrigeration input end 32 and a refrigeration output end 33. A refrigeration pipe is provided inside the recovery tank body 31. The recycling tank body 31 includes an inner shell and an outer shell, with an insulation layer between the inner shell and the outer shell, and a reinforcing support ring between the inner shell and the outer shell. The refrigeration pipeline includes a plurality of refrigeration coils 21, which are mounted on coil support frames 22, and each refrigeration coil 21 has coil mounting flanges 23 at both ends.

[0026] Example 3

[0027] like Figs. 1-5 As shown, a cryogenic liquid nitrogen recovery device includes: a cryogenic circulation recovery tank 2, which is mounted on an equipment support base plate 1. The output port of the cryogenic circulation recovery tank 2 is connected to the input port of a refrigeration unit 5 via a coolant output pipe 3. The output port of the refrigeration unit 5 is connected to the input port of the cryogenic circulation recovery tank 2 via a coolant input pipe 6. A refrigeration controller 4 is provided on the coolant output pipe 3. A refrigerant control valve 7 is provided on the coolant input pipe 6. A nitrogen inlet is provided on the cryogenic circulation recovery tank 2. A liquid nitrogen outlet is provided at the lower end of the cryogenic circulation recovery tank 2. The nitrogen inlet is connected to a liquid nitrogen recovery pipe. The liquid nitrogen outlet is connected to a liquid nitrogen storage tank 9 via a liquid nitrogen delivery pipe 10. The cryogenic circulation recovery tank 2 includes a recovery tank body 31. The recovery tank body 31 is provided with a refrigeration input end 32 and a refrigeration output end 33. A refrigeration pipe is provided inside the recovery tank body 31. The liquid nitrogen storage tank 9 is equipped with a nitrogen refrigeration circulation pipe 8 at its upper end, and the nitrogen refrigeration circulation pipe 8 is connected to the nitrogen inlet through a three-way valve.

[0028] Example 4

[0029] like Figs. 1-5As shown, a cryogenic liquid nitrogen recovery device includes: a cryogenic circulation recovery tank 2, which is mounted on an equipment support base plate 1. The output port of the cryogenic circulation recovery tank 2 is connected to the input port of a refrigeration unit 5 via a coolant output pipe 3. The output port of the refrigeration unit 5 is connected to the input port of the cryogenic circulation recovery tank 2 via a coolant input pipe 6. A refrigeration controller 4 is provided on the coolant output pipe 3. A refrigerant control valve 7 is provided on the coolant input pipe 6. A nitrogen inlet is provided on the cryogenic circulation recovery tank 2. A liquid nitrogen outlet is provided at the lower end of the cryogenic circulation recovery tank 2. The nitrogen inlet is connected to a liquid nitrogen recovery pipe. The liquid nitrogen outlet is connected to a liquid nitrogen storage tank 9 via a liquid nitrogen delivery pipe 10. The cryogenic circulation recovery tank 2 includes a recovery tank body 31. The recovery tank body 31 is provided with a refrigeration input end 32 and a refrigeration output end 33. A refrigeration pipe is provided inside the recovery tank body 31. The refrigeration controller 4 includes a controller body 41, which is mounted on a controller housing 42. The controller body 41 is provided with a control input port 44 and a control output port 43.

[0030] Example 5

[0031] like Figs. 1-5 As shown, a cryogenic liquid nitrogen recovery device includes: a cryogenic circulation recovery tank 2, which is mounted on an equipment support base plate 1. The output port of the cryogenic circulation recovery tank 2 is connected to the input port of a refrigeration unit 5 via a coolant output pipe 3. The output port of the refrigeration unit 5 is connected to the input port of the cryogenic circulation recovery tank 2 via a coolant input pipe 6. A refrigeration controller 4 is provided on the coolant output pipe 3. A refrigerant control valve 7 is provided on the coolant input pipe 6. A nitrogen inlet is provided on the cryogenic circulation recovery tank 2. A liquid nitrogen outlet is provided at the lower end of the cryogenic circulation recovery tank 2. The nitrogen inlet is connected to a liquid nitrogen recovery pipe. The liquid nitrogen outlet is connected to a liquid nitrogen storage tank 9 via a liquid nitrogen delivery pipe 10. The cryogenic circulation recovery tank 2 includes a recovery tank body 31. The recovery tank body 31 is provided with a refrigeration input end 32 and a refrigeration output end 33. A refrigeration pipe is provided inside the recovery tank body 31. The liquid nitrogen storage tank 9 includes a tank body 91, on which an input connection flange 93 and an output connection flange 92 are provided, and several monitoring terminals 97 are provided. The tank body 91 has an inner shell and an outer shell, with an insulation layer between them and a reinforcing support ring between them. The lower end of the tank body 91 is mounted on an equipment support column 95, and an equipment support pad 96 is provided at the lower end of the equipment support column 95. The tank body 91 has an inspection hole 94.

[0032] The output port of the deep cold circulation recovery tank body 2 is connected to the input port of the refrigerating machine 5 through a cooling liquid output pipe 3, the output port of the refrigerating machine 5 is connected to the input port of the deep cold circulation recovery tank body 2 through a cooling liquid input pipe 6, a refrigeration controller 4 is arranged on the cooling liquid output pipe 3, a refrigerant control valve 7 is arranged on the cooling liquid input pipe 6, a nitrogen input port is arranged on the deep cold circulation recovery tank body 2, a liquid nitrogen discharge port is arranged on the lower end of the deep cold circulation recovery tank body 2, the nitrogen input port is connected to a liquid nitrogen recovery pipe, the liquid nitrogen discharge port is connected to a liquid nitrogen storage tank 9 through a liquid nitrogen conveying pipe 10, the deep cold circulation recovery tank body 2 comprises a recovery tank body 31, refrigeration input end heads 32 and refrigeration output end heads 33 are arranged on the recovery tank body 31, and refrigeration pipelines are arranged in the recovery tank body 31. Not only the circulation recovery of nitrogen can be realized, but also the liquefaction circulation of liquid nitrogen can be ensured to guarantee the storage effect, meanwhile, the whole design is reasonable, and the deployment is convenient.

[0033] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall into the scope of the utility model claimed to be protected. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A liquid nitrogen cryogenic recovery apparatus comprising: The application discloses a deep-cold circulation recycling tank body (2), characterized in that the deep-cold circulation recycling tank body (2) is installed on a device support bottom plate (1), an output port of the deep-cold circulation recycling tank body (2) is connected to an input port of a refrigerating machine (5) through a cooling liquid output pipe (3), an output port of the refrigerating machine (5) is connected to an input port of the deep-cold circulation recycling tank body (2) through a cooling liquid input pipe (6), a refrigeration controller (4) is arranged on the cooling liquid output pipe (3), a refrigerant control valve (7) is arranged on the cooling liquid input pipe (6), a nitrogen input port is arranged on the deep-cold circulation recycling tank body (2), a liquid nitrogen discharge port is arranged at a lower end of the deep-cold circulation recycling tank body (2), the nitrogen input port is connected to a liquid nitrogen recycling pipe, the liquid nitrogen discharge port is connected to a liquid nitrogen storage tank (9) through a liquid nitrogen conveying pipe (10), the deep-cold circulation recycling tank body (2) comprises a recycling tank body (31), the recycling tank body (31) is provided with a refrigeration input end head (32) and a refrigeration output end head (33), and the recycling tank body (31) is provided with a refrigeration pipeline.

2. The liquid nitrogen deep cooling recovery device according to claim 1, characterized in that: The recycling tank body (31) comprises an inner shell and an outer shell, a heat preservation layer is arranged between the inner shell and the outer shell, and a reinforcing support ring is arranged between the inner shell and the outer shell.

3. The liquid nitrogen deep cooling recovery device according to claim 1, characterized in that: The refrigeration pipeline comprises a plurality of refrigeration coils (21), the refrigeration coils (21) are installed on a coil support frame (22), and the refrigeration coils (21) are provided with coil mounting flanges (23) at two ends.

4. The liquid nitrogen deep cooling recovery device according to claim 1, characterized in that: A nitrogen refrigeration circulation pipe (8) is arranged at an upper end of the liquid nitrogen storage tank (9), and the nitrogen refrigeration circulation pipe (8) is connected to the nitrogen input port through a three-way valve.

5. The liquid nitrogen deep cooling recovery device according to claim 1, characterized in that: The refrigeration controller (4) comprises a controller body (41), the controller body (41) is installed on a controller shell (42), and the controller body (41) is provided with a control input port (44) and a control output port (43).

6. The liquid nitrogen deep cooling recovery device according to claim 1, characterized in that: The liquid nitrogen storage tank (9) comprises a storage tank body (91), the storage tank body (91) is provided with an input connecting flange (93) and an output connecting flange (92), and a plurality of monitoring end heads (97) are arranged on the storage tank body (91).

7. The liquid nitrogen cryogenic recovery apparatus of claim 6, wherein: The storage tank body (91) comprises an inner shell and an outer shell, a heat preservation layer is arranged between the inner shell and the outer shell, and a reinforcing support ring is arranged between the inner shell and the outer shell.

8. The liquid nitrogen cryogenic recovery apparatus of claim 6, wherein: A lower end of the storage tank body (91) is installed on a device support column (95), a device support base plate (96) is arranged at a lower end of the device support column (95), and an overhauling hole (94) is arranged on the storage tank body (91).

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