Industrial nitrogen production cooling device
By combining internal and external pipe heat exchangers with a vacuum cooler to form a circulating coolant system, the problem of low cooling efficiency in existing nitrogen production units has been solved, achieving efficient cooling and resource-saving nitrogen cooling effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUOYANG HUAXIA GAS CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-19
AI Technical Summary
Existing industrial nitrogen production equipment is inefficient and has a long cooling time during the cooling process. The water temperature gradually rises, resulting in a decrease in water cooling effect and a large consumption of water resources, creating a need for wastewater treatment.
A circulating coolant system is adopted, which combines heat exchange between inner and outer pipes with a vacuum cooler to achieve the circulation of coolant. The vacuum cooler is used to quickly reduce the coolant temperature, and nitrogen is used for cooling in combination with heat conduction between inner and outer pipes.
It improves nitrogen cooling efficiency, reduces coolant consumption, lowers wastewater treatment requirements, and achieves highly efficient cooling.
Smart Images

Figure CN224262293U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nitrogen production technology, specifically to an industrial nitrogen production cooling device. Background Technology
[0002] Nitrogen is an elemental form of nitrogen, and it is a colorless and odorless gas at room temperature and pressure.
[0003] Chinese Patent Publication No. CN219829225U discloses "An Industrial Nitrogen Production Cooling Device," comprising a housing, heat dissipation pipes, and a water-cooled tank. A feed valve is fixed to the top of the housing, and heat dissipation pipes are fixed inside the housing via a mounting bracket. A spiral tube is fixed inside the conveying pipe, and the upper and lower ends of the spiral tube are connected to the feed valve and the water-cooled tank respectively via the conveying pipe. Compared to traditional equipment, this device effectively combines air cooling and water cooling, increasing its cooling efficiency. The step-by-step cooling process (air cooling to water cooling to air cooling) allows for balanced cooling at each cooling point, preventing the accumulation of air and water cooling components and thus providing more comprehensive cooling for nitrogen gas passing through for a given time.
[0004] While existing technologies can achieve cooling, they suffer from low cooling efficiency, long cooling times, and a gradual decrease in cooling effectiveness as the water temperature rises during the cooling process. Furthermore, water cooling systems consume large amounts of water and generate significant wastewater treatment requirements. Utility Model Content
[0005] The purpose of this invention is to provide an industrial nitrogen production cooling device to solve the problems of low cooling efficiency, long cooling time, and gradual increase in water temperature during water cooling, which leads to a gradual decrease in the cooling effect, large water consumption, and significant wastewater treatment requirements in the aforementioned background technology.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an industrial nitrogen production cooling device, including a base plate, and a cooling component is provided on the top of the base plate;
[0007] The cooling component includes a support frame, and multiple support blocks are fixedly connected to one side of the outer surface of the support frame. An outer tube is fixedly connected to the outer surface of each of the multiple support blocks, and an inner tube is provided inside the outer tube. An air inlet is provided on one side of the outer surface of the inner tube, and an air outlet is provided on one side of the outer surface of the inner tube.
[0008] Preferably, a water tank is fixedly connected to the top of the outer surface of the base plate, and an inlet pipe is fixedly connected to the top of the outer surface of the water tank. A valve is installed inside the water tank.
[0009] Preferably, a first liquid pump is fixedly connected to the top of the outer surface of the water tank, and a liquid delivery pipe is provided inside the first liquid pump, with the side of the liquid delivery pipe away from the first liquid pump located inside the outer pipe.
[0010] Preferably, a lifting pad is fixedly connected to the top of the outer surface of the base plate, and a vacuum cooler is fixedly connected to the top of the outer surface of the lifting pad. A second liquid pump is fixedly connected to one side of the outer surface of the vacuum cooler, and a liquid outlet pipe is provided inside the second liquid pump. The side of the liquid outlet pipe away from the second liquid pump is located inside the outer pipe.
[0011] Preferably, a third liquid pump is fixedly connected to the top of the outer surface of the base plate, and a return pipe is provided inside the third liquid pump. The side of the return pipe away from the third liquid pump is located inside the vacuum cooler, and the third liquid pump is fixedly connected to one side of the outer surface of the water tank.
[0012] Preferably, a support plate is fixedly connected to the top of the outer surface of the support frame, and the support plate is fixedly connected to the top of the outer surface of the base plate.
[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0014] First, this utility model adds coolant to the water tank through the inlet pipe and adds nitrogen gas, which needs to be cooled, into the inner tube through the air inlet. By activating the first pump, coolant is drawn from the water tank and delivered to the outer tube through the delivery pipe. The inner tube circulates within the outer tube, with nitrogen gas flowing inside the inner tube and coolant flowing inside the outer tube. The heat from the high-temperature nitrogen gas in the inner tube passes through the tube wall and is transferred to the low-temperature coolant in the outer tube, lowering the nitrogen temperature and achieving heat exchange through heat conduction. The coolant then passes through the second... The liquid pump and outlet pipe enter the vacuum cooler, where the coolant is cooled again. After cooling, the coolant returns to the water tank via a third pump and return pipe. The first pump then cools the nitrogen again, thus achieving coolant recycling. This technical solution uses coolant and outer pipe to cool nitrogen, and the vacuum cooler rapidly reduces the coolant temperature in a short time, ensuring the outer pipe can work continuously and effectively, improving cooling efficiency and reducing coolant consumption. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a top-view three-dimensional structural diagram of the present invention;
[0017] Figure 3 This is a three-dimensional structural diagram of the cooling component of this utility model.
[0018] The components are as follows: 1. Base plate; 2. Water tank; 201. Valve; 202. Liquid inlet pipe; 3. First liquid pump; 301. Liquid delivery pipe; 4. Support frame; 401. Support block; 402. Support plate; 5. Outer pipe; 501. Inner pipe; 502. Air inlet; 503. Air outlet; 6. Vacuum cooler; 601. Elevating pad; 602. Second liquid pump; 603. Liquid outlet pipe; 604. Liquid return pipe; 605. Third liquid pump. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-3 An industrial nitrogen production cooling device includes a base plate 1, and a cooling component is provided on the top of the base plate 1.
[0021] The cooling component includes a support frame 4, and multiple support blocks 401 are fixedly connected to one side of the outer surface of the support frame 4. An outer tube 5 is fixedly connected to the outer surface of each of the multiple support blocks 401, and an inner tube 501 is provided inside each of the outer tubes 5. An air inlet 502 is provided on one side of the outer surface of the inner tube 501, and an air outlet 503 is provided on one side of the outer surface of the inner tube 501.
[0022] Through the above technical solution, coolant is added to the water tank 2 through the inlet pipe 202, and nitrogen gas requiring cooling is added to the inner pipe 501 through the air inlet 502. The first pump 3 is activated to draw coolant from the water tank 2. The coolant is then transported to the outer pipe 5 through the delivery pipe 301. The inner pipe 501 circulates within the outer pipe 5. Nitrogen gas flows within the inner pipe 501, and coolant flows within the outer pipe 5. The heat from the high-temperature nitrogen gas in the inner pipe 501 passes through the pipe wall and is transferred to the low-temperature coolant in the outer pipe 5, lowering the nitrogen temperature. This heat conduction achieves heat exchange and cooling. The coolant enters the vacuum cooler 6 through the second pump 602 and the outlet pipe 603. The vacuum cooler 6 cools the coolant again. After cooling, the coolant returns to the water tank 2 through the third pump 605 and the return pipe 604. Driven by the first pump 3, the nitrogen gas is cooled again, thus realizing the recycling of coolant. Through the above technical solution, the nitrogen gas is cooled by the coolant and the outer pipe 5, and the temperature of the coolant is rapidly reduced by the vacuum cooler 6 in a short time, thereby ensuring that the outer pipe 5 can work continuously and effectively, improving cooling efficiency and reducing coolant resource consumption.
[0023] Specifically, a water tank 2 is fixedly connected to the top of the outer surface of the base plate 1, and an inlet pipe 202 is fixedly connected to the top of the outer surface of the water tank 2. A valve 201 is installed inside the water tank 2.
[0024] The above technical solution involves adding coolant into the water tank 2 through the inlet pipe 202 and discharging the coolant through the valve 201.
[0025] Specifically, a first liquid pump 3 is fixedly connected to the top of the outer surface of the water tank 2, and a liquid delivery pipe 301 is provided inside the first liquid pump 3. The side of the liquid delivery pipe 301 away from the first liquid pump 3 is located inside the outer pipe 5.
[0026] Through the above technical solution, the first pump 3 draws coolant from the water tank 2, and the coolant is delivered to the outer pipe 5 through the delivery pipe 301.
[0027] Specifically, a lifting pad 601 is fixedly connected to the top of the outer surface of the base plate 1, and a vacuum cooler 6 is fixedly connected to the top of the outer surface of the lifting pad 601. A second liquid pump 602 is fixedly connected to one side of the outer surface of the vacuum cooler 6, and an outlet pipe 603 is provided inside the second liquid pump 602. The side of the outlet pipe 603 away from the second liquid pump 602 is located inside the outer pipe 5.
[0028] Through the above technical solution, the coolant enters the vacuum cooler 6 through the second pump 602 and the outlet pipe 603, and the vacuum cooler 6 cools the coolant again.
[0029] Specifically, a third liquid pump 605 is fixedly connected to the top of the outer surface of the base plate 1, and a return pipe 604 is provided inside the third liquid pump 605. The side of the return pipe 604 away from the third liquid pump 605 is located inside the vacuum cooler 6, and the third liquid pump 605 is fixedly connected to one side of the outer surface of the water tank 2.
[0030] Through the above technical solution, the coolant after cooling is completed returns to the water tank 2 through the third pump 605 and the return pipe 604.
[0031] Specifically, a support plate 402 is fixedly connected to the top of the outer surface of the support frame 4, and the support plate 402 is fixedly connected to the top of the outer surface of the base plate 1.
[0032] The above technical solution uses a support plate 402 to support the support frame 4.
[0033] In use, coolant is added to the water tank 2 through the inlet pipe 202, and nitrogen gas to be cooled is added to the inner pipe 501 through the air inlet 502. The first pump 3 is activated to draw coolant from the water tank 2. The coolant is then transported to the outer pipe 5 through the delivery pipe 301. The inner pipe 501 circulates within the outer pipe 5. Nitrogen gas flows within the inner pipe 501, and coolant flows within the outer pipe 5. The heat from the high-temperature nitrogen gas in the inner pipe 501 passes through the pipe wall and is transferred to the low-temperature coolant in the outer pipe 5, lowering the nitrogen temperature and achieving heat exchange through heat conduction. The coolant enters the vacuum cooler 6 through the second pump 602 and the outlet pipe 603, where it is cooled again. After cooling, the coolant returns to the water tank 2 through the third pump 605 and the return pipe 604. Driven by the first pump 3, the nitrogen is cooled again, thus achieving the recycling of the coolant. Through the above technical solution, the nitrogen is cooled by the coolant and the outer pipe 5, and the temperature of the coolant is rapidly reduced by the vacuum cooler 6 in a short time, thereby ensuring that the outer pipe 5 can work continuously and effectively, improving cooling efficiency and reducing coolant consumption.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An industrial nitrogen production cooling device, comprising a base plate (1), characterized in that: A cooling component is provided on the top of the base plate (1); The cooling component includes a support frame (4), and a plurality of support blocks (401) are fixedly connected to one side of the outer surface of the support frame (4). An outer tube (5) is fixedly connected to the outer surface of each of the plurality of support blocks (401), and an inner tube (501) is provided inside the outer tube (5). An air inlet (502) is provided on one side of the outer surface of the inner tube (501), and an air outlet (503) is provided on one side of the outer surface of the inner tube (501).
2. The industrial nitrogen production cooling device according to claim 1, characterized in that: A water tank (2) is fixedly connected to the top of the outer surface of the base plate (1), and an inlet pipe (202) is fixedly connected to the top of the outer surface of the water tank (2). A valve (201) is installed inside the water tank (2).
3. The industrial nitrogen production cooling device according to claim 2, characterized in that: The top of the outer surface of the water tank (2) is fixedly connected to a first liquid pump (3), and the inside of the first liquid pump (3) is provided with a liquid delivery pipe (301). The side of the liquid delivery pipe (301) away from the first liquid pump (3) is located inside the outer pipe (5).
4. The industrial nitrogen production cooling device according to claim 1, characterized in that: A lifting pad (601) is fixedly connected to the top of the outer surface of the base plate (1), and a vacuum cooler (6) is fixedly connected to the top of the outer surface of the lifting pad (601). A second liquid pump (602) is fixedly connected to one side of the outer surface of the vacuum cooler (6), and an outlet pipe (603) is provided inside the second liquid pump (602). The side of the outlet pipe (603) away from the second liquid pump (602) is located inside the outer pipe (5).
5. The industrial nitrogen production cooling device according to claim 1, characterized in that: A third liquid pump (605) is fixedly connected to the top of the outer surface of the base plate (1), and a return pipe (604) is provided inside the third liquid pump (605). The side of the return pipe (604) away from the third liquid pump (605) is located inside the vacuum cooler (6), and the third liquid pump (605) is fixedly connected to one side of the outer surface of the water tank (2).
6. The industrial nitrogen production cooling device according to claim 1, characterized in that: A support plate (402) is fixedly connected to the top of the outer surface of the support frame (4), and the support plate (402) is fixedly connected to the top of the outer surface of the base plate (1).