Environment-friendly nitrogen making machine equipment

By introducing a vibration structure and inclined guide groove design into the nitrogen generator, combined with air and nitrogen storage tanks, a multi-stage pretreatment is formed, which solves the problem of easy clogging of filters in traditional nitrogen generators, realizes an efficient and stable nitrogen generation process, and reduces maintenance costs and energy consumption.

CN224370996UActive Publication Date: 2026-06-19SHANDONG LIXING ADVANCED MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG LIXING ADVANCED MATERIAL TECH CO LTD
Filing Date
2025-07-18
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Traditional nitrogen generators use static filters, which are prone to clogging, leading to reduced air intake efficiency, high maintenance costs, and reduced production efficiency.

Method used

The system employs a filtration mechanism, combined with a vibration structure and inclined guide groove design. The filter screen works in conjunction with the vibration structure and multi-stage filtration, along with air and nitrogen storage tanks, to form a continuous nitrogen production process, featuring multi-stage pretreatment and pressure swing adsorption nitrogen production technology.

Benefits of technology

Extend filter life, improve nitrogen production efficiency and purity, reduce maintenance costs, reduce energy waste, and meet environmental protection and energy conservation requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of nitrogen generator technology, specifically an environmentally friendly nitrogen generator device, including a filtration mechanism. The filtration mechanism includes a body, with a partition plate fixedly installed in the middle of the body. Guide grooves are formed on both sides of the middle of one end of the partition plate. A filter frame is slidably engaged in the middle of the guide grooves, and a filter screen is engaged in the middle of the filter frame. A fixing plate is fixedly installed at one end of the middle of the body, and a bracket is fixedly installed on one side of the fixing plate. A rotating shaft is rotatably mounted in the middle of the bracket, and a rotation groove is formed on the surface of the rotating shaft. A motor is fixedly installed at the upper end of the bracket. This utility model solves the problem that traditional nitrogen generators typically use static filters to filter air, which has many shortcomings.
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Description

Technical Field

[0001] This utility model relates to the field of nitrogen generator technology, specifically to an environmentally friendly nitrogen generator device. Background Technology

[0002] A nitrogen generator is a device that uses physical methods to separate oxygen and nitrogen from the air to obtain high-purity nitrogen gas. It has wide applications in various fields, including environmental protection, chemical industry, food industry, and electronics industry. In environmental protection, it can be used for wastewater treatment. By introducing nitrogen into wastewater, the dissolved oxygen content in the water is adjusted, promoting the growth and metabolism of certain microorganisms, thereby improving wastewater treatment efficiency. Furthermore, in landfills, nitrogen can be used as a covering gas to reduce the emission of harmful gases such as methane. In the chemical industry, it is a major raw material for ammonia synthesis, and ammonia is an important intermediate in the production of fertilizers, nitric acid, explosives, and many other chemical products. Simultaneously, nitrogen is also used in organic synthesis and petrochemical production processes as a protective gas to prevent the oxidation of raw materials or products.

[0003] Traditional nitrogen generators typically use stationary filters to filter the air. However, this filtration method has several drawbacks in practical use. For example, the filters are prone to clogging. During prolonged air filtration, dust, impurities, and other particles in the air continuously adhere to the filter. Over time, the pores of the filter gradually become clogged, reducing airflow and decreasing the nitrogen generator's intake efficiency, thus increasing power consumption. Furthermore, maintenance costs are high. To ensure the normal operation of the nitrogen generator, clogged filters need to be cleaned or replaced regularly. Cleaning filters requires significant manpower and time, and even incomplete cleaning can still affect filtration efficiency. Replacing filters requires purchasing new ones, increasing equipment maintenance costs. Frequent cleaning or replacement of filters also increases equipment downtime, impacting production efficiency. Utility Model Content

[0004] One of the technical problems that this application aims to solve is that traditional nitrogen generators typically use static filters to filter the air, and this filtration method has many shortcomings in practical use.

[0005] To address the aforementioned technical problems, this application provides an environmentally friendly nitrogen generator, including a filtration mechanism. The filtration mechanism includes a body, with a partition plate fixedly installed in the middle of the body. Guide grooves are formed on both sides of the middle of one end of the partition plate. A filter frame is slidably engaged in the middle of the guide grooves, and a filter screen is engaged in the middle of the filter frame. A fixing plate is fixedly installed at one end of the middle of the body, and a bracket is fixedly installed on one side of the fixing plate. A rotating shaft is rotatably mounted in the middle of the bracket, and a rotation groove is formed on the surface of the rotating shaft. A motor is fixedly installed at the upper end of the bracket, and the output end of the motor is fixedly connected to the upper end of the rotating shaft. A support frame is fixedly installed on the other side of the fixing plate, with a cross slider slidably engaged in the middle of the support frame. Springs are fixedly installed at both the upper and lower ends of the cross slider, and the two springs are respectively fixedly installed to the inner walls of the upper and lower ends of the support frame. One end of the cross slider is slidably engaged in the rotation groove in the middle of the rotating shaft, and the other end of the cross slider is fixedly connected to one side of the filter frame by screws.

[0006] In some embodiments, inclined guide plates are fixedly installed at both ends on the other side of the middle of the body, an inclined guide groove is formed in the middle of the two inclined guide plates, a through hole is opened in the middle of the partition plate, the inclined guide groove and the through hole are connected, the size of the filter screen is larger than the size of the through hole, and a cover plate is fixedly installed at the upper end of the body by screws.

[0007] In some embodiments, one end of the filter mechanism with an inclined guide groove is connected to and fixed with a connecting pipe, one end of the connecting pipe is connected to and fixed with an air tank, and the lower end of one end of the air tank is connected to and fixed with an air inlet pipe.

[0008] In some embodiments, the end of the filter mechanism away from the inclined guide groove is connected to and fixed with a connecting pipe two, and the end of the connecting pipe two is connected to and fixed with a refrigerated dryer.

[0009] In some embodiments, a connecting pipe is fixedly connected to one side of the refrigerated dryer.

[0010] In some embodiments, one end of the connecting pipe three is connected to and fixed with a pressure swing adsorption nitrogen generator, and one side of the pressure swing adsorption nitrogen generator is connected to and fixed with a connecting pipe four.

[0011] In some embodiments, one end of the connecting pipe four is connected to a fixed nitrogen storage tank.

[0012] In some embodiments, an outlet pipe is fixedly connected to one side of the lower end of the nitrogen storage tank.

[0013] This utility model has at least the following beneficial effects:

[0014] 1. When this utility model is in use, the filter screen in the filtration mechanism, together with the vibration structure, can shake off impurities in time, avoid clogging, and extend the service life of the filter screen; at the same time, the inclined guide groove design makes the air flow evenly to the filter screen, and the multi-stage filtration ensures that the air entering the nitrogen generator is clean and dry, providing a high-quality gas source for nitrogen production and improving nitrogen production efficiency and purity.

[0015] 2. In use, the air storage tank and nitrogen storage tank play buffering and storage roles respectively, ensuring stable air and nitrogen supply; the components are connected in an orderly manner through connecting pipes to form a continuous nitrogen generation process. The pressure swing adsorption nitrogen generator accurately separates under high-quality air intake conditions, ensuring a stable and efficient nitrogen generation process and meeting the nitrogen needs of different scales.

[0016] 3. When in use, this utility model adopts a clean pressure swing adsorption nitrogen generation process, which produces no harmful pollutants; multi-stage pretreatment reduces equipment wear and tear, extends the life of adsorbents and other components, and reduces maintenance costs; at the same time, stable and efficient operation reduces energy waste and meets environmental protection and energy-saving requirements. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the filtration mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram showing the connection relationship between the partition plate and the fixing plate of this utility model;

[0021] Figure 5 This is a schematic diagram showing the connection between the support frame and the cross slider of this utility model.

[0022] In the diagram: 1. Air tank; 11. Inlet pipe; 12. Connecting pipe one; 13. Connecting pipe two; 14. Refrigerated dryer; 15. Connecting pipe three; 16. Pressure swing adsorption nitrogen generator; 17. Connecting pipe four; 18. Nitrogen tank; 19. Outlet pipe; 2. Filtration mechanism; 21. Body; 22. Cover plate; 23. Angled guide plate; 24. Angled guide groove; 25. Divider plate; 26. Through hole; 27. Guide slide; 28. Filter frame; 29. ​​Filter screen; 30. Fixing plate; 31. Bracket; 32. Motor; 33. Rotating shaft; 34. Rotary groove; 35. Support frame; 36. Cross slider; 37. Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: Please refer to Figure 1-5 This utility model provides a technical solution: an environmentally friendly nitrogen generator, including a filtration mechanism 2. The filtration mechanism 2 includes a body 21, a partition plate 25 fixedly installed in the middle of the body 21, guide grooves 27 on both sides of the middle of one end of the partition plate 25, a filter frame 28 slidably engaged in the middle of the guide groove 27, a filter screen 29 engaged in the middle of the filter frame 28, a fixing plate 30 fixedly installed at one end of the middle of the body 21, a bracket 31 fixedly installed on one side of the fixing plate 30, a rotating shaft 33 rotatably installed in the middle of the bracket 31, a rotation groove 34 opened on the surface of the rotating shaft 33, a motor 32 fixedly installed at the upper end of the bracket 31, the output end of the motor 32 fixedly connected to the upper end of the rotating shaft 33, and the other side of the fixing plate 30 is fixed. A support frame 35 is installed, and a cross slider 36 is slidably engaged in the middle of the support frame 35. Springs 37 are fixedly installed at both the upper and lower ends of the cross slider 36. The two springs 37 are respectively fixedly installed to the inner walls of the upper and lower ends of the support frame 35. One end of the cross slider 36 is slidably engaged with the rotary groove 34 in the middle of the rotating shaft 33. The other end of the cross slider 36 is fixedly connected to one side of the filter frame 28 by screws. Both ends of the other side of the machine body 21 are fixedly installed with inclined guide plates 23. An inclined guide groove 24 is formed in the middle of the two inclined guide plates 23. A through hole 26 is opened in the middle of the partition plate 25. The inclined guide groove 24 and the through hole 26 are connected. The size of the filter screen 29 is larger than the size of the through hole 26. A cover plate 22 is fixedly installed at the upper end of the machine body 21 by screws.

[0025] In this embodiment, the motor 32 drives the rotating shaft 33 to rotate. The special design of the rotary groove 34 on the rotating shaft 33 causes the cooperating cross slider 36 to slide back and forth within the support frame 35. The cross slider 36 is connected to the filter frame 28, thereby causing the filter frame 28 to vibrate and slide within the guide groove 27. This vibration allows dust, particles, and other impurities attached to the surface of the filter screen 29 to fall off, preventing excessive accumulation of impurities on the filter screen 29 and causing blockage. This maintains the permeability of the filter screen 29, and the filtration efficiency does not decrease due to impurity accumulation. The reduced risk of damage to the filter 29 due to excessive localized pressure caused by clogging extends its lifespan. The vibration of the filter frame 28 ensures more even contact between all parts of the filter 29 and the air during filtration, preventing localized filter failure caused by prolonged filtration of large amounts of impurities. This results in a more balanced overall filtration performance and extends the effective lifespan of the filter 29. The inclined guide groove 24 formed by the inclined guide plate 23 connects to the through hole 26 in the middle of the partition plate 25, allowing air to enter the body 2. At the same time, the inclined guide groove 24 can guide the air to flow to the filter screen 29 at a more reasonable angle and path, so that the air is more evenly distributed on the surface of the filter screen 29, improving the utilization rate of the filter screen 29. At the same time, this guiding design also helps to reduce the resistance during the air flow process, reduce energy consumption, and conform to the design concept of environmentally friendly equipment. The size of the filter screen 29 is larger than the size of the through hole 26, which ensures that the air entering from the inclined guide groove 24 must be filtered by the filter screen 29 before passing through the through hole 26, avoiding the air from forming a short circuit around the filter screen 29, ensuring the filtration effect, providing cleaner air for the subsequent nitrogen generation process, and helping to improve the overall performance and nitrogen generation quality of the nitrogen generator. The upper end of the body 21 is fixed with a cover plate 22 by screws, which makes it easy to open the cover plate 22 when it is necessary to replace or clean the filter screen 29 or to inspect the inside of the filter mechanism 2. The operation space is large and convenient. Compared with some closed structure filter mechanisms 2, this design greatly reduces the difficulty of maintenance and inspection, improves the maintainability of the equipment, and reduces maintenance time and cost.

[0026] Example 2: As Figure 1-3 As shown, the filter mechanism 2 has an inclined guide groove 24, one end of which is connected to and fixed with a connecting pipe 12. One end of the connecting pipe 12 is connected to and fixed with an air tank 1. An air inlet pipe 11 is connected to and fixed below one end of the air tank 1. The end of the filter mechanism 2 away from the inclined guide groove 24 is connected to and fixed with a connecting pipe 2 13. One end of the connecting pipe 2 13 is connected to and fixed with a refrigerated dryer 14. One side of the refrigerated dryer 14 is connected to and fixed with a connecting pipe 3 15. One end of the connecting pipe 3 15 is connected to and fixed with a pressure swing adsorption nitrogen generator 16. One side of the pressure swing adsorption nitrogen generator 16 is connected to and fixed with a connecting pipe 4 17. One end of the connecting pipe 4 17 is connected to and fixed with a nitrogen tank 18. One side of the lower end of the nitrogen tank 18 is connected to and fixed with an outlet pipe 19.

[0027] In this embodiment, the air storage tank 1 serves to buffer and store air. After the air inlet pipe 11 introduces outside air into the air storage tank 1, the air storage tank 1 can stably store a certain amount of air, providing a continuous and stable air source for the subsequent nitrogen generation process. This helps to avoid the impact of unstable or fluctuating outside air supply on the operation of the nitrogen generator, ensuring the stable operation of the entire nitrogen generation system. When the air stays in the air storage tank 1, some larger particles of impurities and moisture will naturally settle under gravity, achieving a preliminary filtration and impurity separation effect, which reduces the burden on subsequent filtration. The reduced workload of mechanism 2 extends the service life of components such as filter screen 29 in the filtration mechanism 2. The filtration mechanism 2 further filters the air through the inclined guide groove 24 and filter screen 29, removing dust, particles and other impurities from the air. The refrigerated dryer 14 dries the air after preliminary filtration, reducing the moisture content of the air, making the air entering the pressure swing adsorption nitrogen generator 16 cleaner and drier. This multi-stage pretreatment method can effectively improve the quality of the air entering the pressure swing adsorption nitrogen generator 16, reduce the damage of impurities and moisture to the nitrogen generator adsorbent, and improve the service life of the adsorbent and nitrogen generation efficiency. After thorough pretreatment, the air enters the pressure swing adsorption (PSA) nitrogen generator 16. Because the air quality is guaranteed, the PSA nitrogen generator 16 can more accurately separate oxygen, nitrogen, and other components in the air using the adsorbent, improving nitrogen purity and yield. A stable air source and excellent intake conditions help the PSA nitrogen generator 16 operate under optimal conditions, reducing problems such as unstable nitrogen production or decreased purity caused by intake air quality issues. The nitrogen storage tank 18 stores a certain amount of nitrogen, acting as a buffer and regulating the nitrogen supply. When the user's nitrogen demand... When changes occur, nitrogen storage tank 18 can replenish or store nitrogen in a timely manner, ensuring the stability and continuity of nitrogen supply. For example, when the user's nitrogen consumption suddenly increases, nitrogen storage tank 18 can quickly provide the required nitrogen, avoiding supply interruptions caused by insufficient nitrogen generator production capacity. Through multi-stage pretreatment and reasonable system layout, the operating efficiency of nitrogen generator and the output and purity of nitrogen are improved, reducing energy waste caused by low nitrogen generation efficiency. At the same time, the buffering effect of air storage tank 1 and nitrogen storage tank 18 also helps to reduce the frequent start-up and shutdown of equipment, further saving energy.

[0028] like Figure 1-5As shown, outside air enters the air storage tank 1 through the air inlet pipe 11. The air storage tank 1 serves to stabilize the air pressure and initially settle impurities. When air enters, some large particles and moisture naturally settle under gravity, providing a relatively stable and cleaner air source for subsequent processing. The air in the air storage tank 1 flows into the inclined guide groove 24 of the filter mechanism 2 through the connecting pipe 12. The inclined guide groove 24 is formed by the inclined guide plate 23, which can guide the air to flow evenly towards the filter screen 29. The motor 32 drives the rotating shaft 33 to rotate. The rotary groove 34 on the surface of the rotating shaft 33 cooperates with the cross slider 36, so that the cross slider 36 reciprocates within the support frame 35. The cross slider 36 is connected to the filter frame 28, causing the filter frame 28 to vibrate within the guide groove 27, allowing impurities attached to the filter screen 29 to fall off, preventing the filter screen 29 from clogging and ensuring the filtration effect. After the air is deeply filtered by the filter screen 29 to remove dust, particles, and other impurities, it continues the subsequent process through the through hole 26 in the middle of the partition plate 25. The filtered air flows out from the filter mechanism 2 and enters the refrigerated dryer 14 through the connecting pipe 2 13. The refrigerated dryer 14 uses the cooling principle to lower the air temperature, causing the water vapor in it to condense into liquid water and be discharged, thereby reducing the water content of the air and obtaining dry air. The dried air enters the pressure swing adsorption nitrogen generator 16 through the connecting pipe 3 15. The pressure swing adsorption nitrogen generator 16 uses the difference in the amount of oxygen and nitrogen in the air adsorbed by an adsorbent such as carbon molecular sieve under different pressures to achieve separation. The high-purity nitrogen produced by the pressure swing adsorption nitrogen generator 16 is transported to the nitrogen storage tank 18 for storage through the connecting pipe 4 17. The nitrogen storage tank 18 can stabilize the pressure of nitrogen and store a certain amount of nitrogen to meet different nitrogen needs. When nitrogen is needed, the valve of the outlet pipe 19 is opened, and nitrogen can be output from the nitrogen storage tank 18 to the place of use.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] 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 of the present invention.

Claims

1. An environmentally friendly nitrogen making machine device comprising a filtering mechanism (2), characterized in that: The filtration mechanism (2) includes a body (21), a partition plate (25) is fixedly installed in the middle of the body (21), guide grooves (27) are provided on both sides of the middle of one end of the partition plate (25), a filter frame (28) is slidably engaged in the middle of the guide groove (27), a filter screen (29) is engaged in the middle of the filter frame (28), a fixing plate (30) is fixedly installed at one end of the middle of the body (21), a bracket (31) is fixedly installed on one side of the fixing plate (30), a rotating shaft (33) is rotatably installed in the middle of the bracket (31), a rotary groove (34) is provided on the surface of the rotating shaft (33), and the bracket (31) is rotatably mounted in the middle of the bracket (31). A motor (32) is fixedly installed at the upper end of the fixed plate (30). The output end of the motor (32) is fixedly connected to the upper end of the rotating shaft (33). A support frame (35) is fixedly installed on the other side of the fixed plate (30). A cross slider (36) is slidably engaged in the middle of the support frame (35). Springs (37) are fixedly installed at both the upper and lower ends of the cross slider (36). The two springs (37) are fixedly installed on the inner walls of the upper and lower ends of the support frame (35). One end of the cross slider (36) is slidably engaged in the rotary groove (34) in the middle of the rotating shaft (33). The other end of the cross slider (36) is fixedly connected to one side of the filter frame (28) by screws.

2. The environmentally friendly nitrogen generator according to claim 1, characterized in that: Both ends of the other side of the body (21) are fixedly installed with inclined guide plates (23). An inclined guide groove (24) is formed in the middle of the two inclined guide plates (23). A through hole (26) is opened in the middle of the partition plate (25). The inclined guide groove (24) and the through hole (26) are connected. The size of the filter screen (29) is larger than the size of the through hole (26). A cover plate (22) is fixedly installed on the upper end of the body (21) by screws.

3. The environmentally friendly nitrogen generator equipment according to claim 2, characterized in that: The filter mechanism (2) has an inclined guide groove (24) at one end connected to a connecting pipe (12), and an air tank (1) at one end of the connecting pipe (12). An air inlet pipe (11) is connected to the lower end of one end of the air tank (1).

4. The environmentally friendly nitrogen generator according to claim 3, characterized in that: The filter mechanism (2) is connected to a connecting pipe (13) at one end away from the inclined guide groove (24), and a refrigerated dryer (14) is connected to one end of the connecting pipe (13).

5. The environmentally friendly nitrogen generator according to claim 4, characterized in that: One side of the refrigerated dryer (14) is connected to a connecting pipe three (15).

6. The environmentally friendly nitrogen generator according to claim 5, characterized in that: One end of the connecting pipe three (15) is connected to and fixed with a pressure swing adsorption nitrogen generator (16), and one side of the pressure swing adsorption nitrogen generator (16) is connected to and fixed with a connecting pipe four (17).

7. The environmentally friendly nitrogen generator according to claim 6, characterized in that: One end of the connecting pipe four (17) is connected to a nitrogen storage tank (18).

8. The environmentally friendly nitrogen generator according to claim 7, characterized in that: The nitrogen storage tank (18) has an outlet pipe (19) fixedly connected to one side of its lower end.