CN216694168U - Liquid nitrogen residual cold utilization device - Google Patents
Liquid nitrogen residual cold utilization device Download PDFInfo
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- CN216694168U CN216694168U CN202123445476.0U CN202123445476U CN216694168U CN 216694168 U CN216694168 U CN 216694168U CN 202123445476 U CN202123445476 U CN 202123445476U CN 216694168 U CN216694168 U CN 216694168U
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Abstract
The utility model belongs to the technical field of refrigeration equipment, and relates to a liquid nitrogen residual cold utilization device which comprises a liquid nitrogen evaporator connected with a refrigeration system, wherein the liquid nitrogen evaporator is arranged in a water tank, circulating cooling water is contained in the water tank, a spraying device for spraying the circulating cooling water onto the surface of the liquid nitrogen evaporator is further arranged in the water tank, a water outlet is formed in the bottom of the water tank, the water outlet is connected with an inlet of a heat exchange device through a first pipeline, an outlet of the heat exchange device is connected with the spraying device through a second pipeline, and the circulating cooling water is driven by a circulating water pump to circulate in the water tank, the first pipeline, the heat exchange device, the second pipeline and the spraying device. The liquid nitrogen residual cold utilization device provided by the utility model not only solves the problem of ice layer coverage of the liquid nitrogen evaporator, but also reasonably utilizes the cold energy of the ice layer.
Description
Technical Field
The utility model belongs to the technical field of refrigeration equipment, and relates to a liquid nitrogen residual cold utilization device.
Background
The liquid nitrogen evaporator often forms a thick ice layer on the surface due to extremely low surface temperature, and the normal operation of the liquid nitrogen evaporator is seriously influenced by the existence of the ice layer. In order to ensure the normal operation of the liquid nitrogen evaporator, necessary technical means are adopted to remove the ice layer on the surface of the liquid nitrogen evaporator. On the other hand, the ice layer is also an excellent source of cold energy, and how to reasonably utilize the cold energy of the ice layer is also a project worthy of development.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a liquid nitrogen residual cold utilization device, which not only solves the problem of ice layer coverage of a liquid nitrogen evaporator, but also reasonably utilizes the cold energy of the ice layer.
In order to solve the above technical problems, the object of the present invention is achieved by the following technical solutions:
the liquid nitrogen residual cold utilization device comprises a liquid nitrogen evaporator connected with a refrigerating system, wherein the liquid nitrogen evaporator is arranged in a water tank, circulating cooling water is contained in the water tank, a spraying device for spraying the circulating cooling water onto the surface of the liquid nitrogen evaporator is further arranged in the water tank, a water outlet is formed in the bottom of the water tank, the water outlet is connected with an inlet of the heat exchange device through a first pipeline, an outlet of the heat exchange device is connected with the spraying device through a second pipeline, and the circulating cooling water is driven by a circulating water pump to circulate in the water tank, the first pipeline, the heat exchange device, the second pipeline and the spraying device.
In the device for utilizing residual cold in liquid nitrogen, the heat exchange device is connected with the device requiring cold, and the circulating cooling water and the device requiring cold exchange heat in the heat exchange device.
In the device for utilizing residual liquid nitrogen cooling, the device requiring cooling capacity comprises a heat treatment device requiring cooling, an electric furnace or a quenching medium.
In the device for utilizing residual cold in liquid nitrogen, the circulating water pump is arranged on the first pipeline.
In the device for utilizing residual cold in liquid nitrogen, the first pipeline and/or the second pipeline are/is provided with a pipeline valve, and the pipeline valve can cut off the corresponding pipeline.
In the device for utilizing residual cold in liquid nitrogen, a pressure detection meter and a temperature detection meter are arranged on the first pipeline and/or the second pipeline. The pressure and temperature of the circulating cooling water in the first pipeline and/or the second pipeline are respectively monitored.
In the device is utilized to the incomplete cold of foretell liquid nitrogen, the water tank top is connected with moisturizing pipeline, is provided with the moisturizing valve on the moisturizing pipeline, the water tank bottom is provided with drainage pipe, is provided with the drainage valve on the drainage pipe. When necessary, the water tank may be replenished with water through a replenishing pipe to increase the amount of circulating cooling water, or the circulating cooling water may be discharged through a drain pipe to decrease the amount of circulating cooling water.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model sprays the circulating cooling water with heat to the liquid nitrogen evaporator through the spraying device, removes the ice layer on the surface of the liquid nitrogen evaporator, inputs the sprayed water into the heat exchanger for heat exchange with equipment requiring cold energy after the temperature of the sprayed water is reduced, and enables the circulating cooling water to absorb heat while cooling the equipment and to circulate to the spraying device again. The liquid nitrogen residual cold utilization device provided by the utility model not only solves the problem of ice layer coverage of the liquid nitrogen evaporator, but also reasonably utilizes the cold energy of the ice layer. The normal work of the liquid nitrogen evaporator is guaranteed, and the energy consumption is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
reference numerals: 1. a liquid nitrogen evaporator; 2. a water tank; 3. a spraying device; 4. a first conduit; 5. a heat exchange device; 6. a second conduit; 7. a water circulating pump; 8. a pipeline valve; 9. a pressure detection meter; 10. a temperature detection meter; 11. a water replenishing pipeline; 12. a water replenishing valve; 13. a water discharge pipeline; 14. a drain valve.
Detailed Description
The utility model will be further described in the following with reference to specific embodiments in conjunction with the accompanying drawings, see fig. 1:
the device is utilized to incomplete cold of liquid nitrogen, include the liquid nitrogen evaporator 1 who is connected with refrigerating system, liquid nitrogen evaporator 1 sets up in water tank 2, the splendid attire has recirculated cooling water in the water tank 2, still be provided with spray set 3 with 1 surperficial of liquid nitrogen evaporator with recirculated cooling water in the water tank 2, the bottom of water tank 2 is provided with the delivery port, the delivery port is through the access connection of first pipeline 4 with heat exchange device 5, and heat exchange device 5's export is passed through second pipeline 6 and is connected with spray set 3, recirculated cooling water is circulated in water tank 2, first pipeline 4, heat exchange device 5, second pipeline 6 and spray set 3 by circulating water pump 7 drive.
The heat exchange device 5 is connected with equipment requiring cold energy, and the circulating cooling water and the equipment requiring cold energy exchange heat in the heat exchange device 5.
The equipment requiring cold energy may be any equipment requiring cooling, including, for example, heat treatment equipment requiring cooling, an electric furnace, or a quenching medium.
The number of the circulating water pumps 7 may be one or more. The circulating water pump 7 is provided in plurality for better driving the circulation of the circulating cooling water, and a circulating water pump group can also be used. In the embodiment, the circulating water pump is arranged on the first pipeline.
And the first pipeline 4 and/or the second pipeline 6 are/is provided with a pipeline valve 8, and the pipeline valve 8 can cut off the corresponding pipeline.
In order to grasp the running condition of the circulating cooling water in time and adjust the running condition in time, a pressure detection meter 9 and a temperature detection meter 10 are arranged on the first pipeline 4 and/or the second pipeline 6 so as to monitor the pressure and the temperature of the circulating cooling water in the first pipeline 4 and/or the second pipeline 6 respectively. Preferably, the pressure detection gauge 9 and the temperature detection gauge 10 on the first pipeline 4 and the second pipeline 6 are arranged on two sides of the heat exchange device 5.
The top of the water tank 2 is connected with a water supplementing pipeline 11, a water supplementing valve 12 is arranged on the water supplementing pipeline 11, a drainage pipeline 13 is arranged at the bottom of the water tank 2, and a drainage valve 14 is arranged on the drainage pipeline 13. When necessary, the water tank 2 may be replenished with water through the replenishment pipe 11 to increase the amount of circulating cooling water, or discharged through the drainage pipe 13 to decrease the amount of circulating cooling water. The circulating cooling water can be replaced integrally through the water replenishing pipeline 11 and the water draining pipeline 13.
The working process of the embodiment is as follows: the low-temperature circulating cooling water in the water tank 2 enters the heat exchange device 5 under the driving of the circulating water pump 7, the circulating cooling water in the heat exchange device 5 exchanges heat with equipment requiring cold energy, the equipment requiring cold energy after exchange is cooled, the circulating cooling water absorbs heat and then warms up, the circulating cooling water after warming up enters the spraying device 3 under the driving of the circulating water pump 7 and is sprayed to the surface of the liquid nitrogen evaporator 1 through the spraying device 3, the circulating cooling water with heat exchanges heat with an ice layer covering the surface of the liquid nitrogen evaporator 1, the ice layer melts, and the circulating cooling water with heat is cooled again into low-temperature circulating cooling water.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.
Claims (7)
1. The device for utilizing the residual cold of the liquid nitrogen comprises a liquid nitrogen evaporator (1) connected with a refrigerating system, and is characterized in that the liquid nitrogen evaporator (1) is arranged in a water tank (2), circulating cooling water is contained in the water tank (2), a spraying device (3) for spraying the circulating cooling water onto the surface of the liquid nitrogen evaporator (1) is further arranged in the water tank (2), a water outlet is arranged at the bottom of the water tank (2), the water outlet is connected with an inlet of a heat exchange device (5) through a first pipeline (4), an outlet of the heat exchange device (5) is connected with the spraying device (3) through a second pipeline (6), and the circulating cooling water is driven by a circulating water pump (7) to circulate in the water tank (2), the first pipeline (4), the heat exchange device (5), the second pipeline (6) and the spraying device (3).
2. The residual cold utilization device of liquid nitrogen according to claim 1, characterized in that the heat exchange device (5) is connected with a device requiring cold, and the circulating cooling water and the device requiring cold exchange heat in the heat exchange device (5).
3. The residual liquid nitrogen cold utilization device according to claim 2, wherein the device requiring cold energy comprises a heat treatment device requiring cooling, an electric furnace or a quenching medium.
4. The residual cold utilization device of liquid nitrogen according to claim 1, characterized in that the circulating water pump (7) is arranged on the first pipeline (4).
5. The device for utilizing residual cold in liquid nitrogen as defined in claim 1, wherein a pipeline valve (8) is arranged on the first pipeline (4) and/or the second pipeline (6).
6. The device for utilizing residual cold in liquid nitrogen as claimed in claim 1, wherein the first pipeline (4) and/or the second pipeline (6) are provided with a pressure detection meter (9) and a temperature detection meter (10).
7. The device for utilizing residual cold in liquid nitrogen as claimed in claim 1, wherein a water replenishing pipeline (11) is connected to the top of the water tank (2), a water replenishing valve (12) is arranged on the water replenishing pipeline (11), a water draining pipeline (13) is arranged at the bottom of the water tank (2), and a water draining valve (14) is arranged on the water draining pipeline (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123445476.0U CN216694168U (en) | 2021-12-28 | 2021-12-28 | Liquid nitrogen residual cold utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123445476.0U CN216694168U (en) | 2021-12-28 | 2021-12-28 | Liquid nitrogen residual cold utilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216694168U true CN216694168U (en) | 2022-06-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123445476.0U Active CN216694168U (en) | 2021-12-28 | 2021-12-28 | Liquid nitrogen residual cold utilization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216694168U (en) |
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2021
- 2021-12-28 CN CN202123445476.0U patent/CN216694168U/en active Active
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