High-purity nitrogen generator

Abstract

The utility model discloses a high-purity nitrogen generator. The high-purity nitrogen generator comprises a generator body and a filter cartridge, a groove is formed in the side wall of the generator body, the filter cartridge is fixedly installed in the groove, an air outlet and an air inlet are formed in the two ends of the top of the rear wall of the generator body respectively, an air inlet pipe is fixedly installed below one side of the filter cartridge and communicated with the air inlet, and an air outlet pipe is fixedly installed above the other side of the filter cartridge; a servo motor is installed at the bottom of the groove and located in the generator body in an embedded mode, a sealing bearing is arranged at the bottom of the filter cylinder, and a U-shaped frame is movably installed at the bottom end of the interior of the filter cylinder through the sealing bearing. According to the utility model, air can be filtered by using water, the filtering quality is better, the later-stage water is lower in replacement cost compared with the traditional filtering material, the interior of the filter cartridge can be conveniently and efficiently cleaned, time and labor are saved, and dirt in the filter cartridge can be effectively prevented from influencing the filtering quality.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen generators, in particular to a high-purity nitrogen generator. Background Art

[0002] The high-purity nitrogen generator directly separates high-purity nitrogen from the air by combining the principles of physical adsorption and electrochemical separation. It is made according to the principle of air separation by electrocatalysis. The electrolytic cell is designed using the reverse process of the fuel cell. When it works, the air pump is used to bring the pressure-stable and pure raw air into the electrolytic cell. The oxygen in the air is adsorbed at the cathode and obtains electrons, reacts with water to generate hydroxide ions, and migrates to the anode. Finally, the electrons are lost at the anode to precipitate oxygen, so the oxygen in the air is continuously separated. Only nitrogen is left to be output along the gas path;

[0003] However, the current high-purity nitrogen generator will filter the air when it enters to ensure the purity of the subsequent nitrogen. The filtration is generally completed using filter materials such as activated carbon, but this filtration method often cannot handle fine particles well, the filtration quality is often not ideal, and the cost of replacing the filter material later is often high.

[0004] Therefore, how to provide a high-purity nitrogen generator is a problem that those skilled in the art need to solve urgently. Utility Model Content

[0005] One purpose of the utility model is to provide a high-purity nitrogen generator. The utility model can use water to filter the air, the filtration quality is better, and the replacement cost of water in the later stage is lower than that of traditional filter materials. Secondly, the inside of the filter cartridge can be cleaned conveniently and efficiently, saving time and effort, and can effectively prevent the dirt inside the filter cartridge from affecting the filtration quality.

[0006] A high-purity nitrogen generator according to an embodiment of the utility model includes a generator body and a filter cartridge;

[0007] The side wall of the generator body is provided with a groove, the filter cartridge is fixedly installed in the groove, the top two ends of the rear wall of the generator body are respectively provided with an air outlet and an air inlet, an air inlet pipe is fixedly installed below one side of the filter cartridge, the air inlet pipe is connected with the air inlet, and an air outlet pipe is fixedly installed above the other side of the filter cartridge;

[0008] A servo motor is embedded and installed at the bottom of the groove and in the generator body, a sealed bearing is provided at the bottom of the filter cartridge, a U-shaped frame is movably installed at the bottom of the filter cartridge through the sealed bearing, the top rotating shaft of the servo motor is transmission-connected to the U-shaped frame through the sealed bearing, and the outer wall of the U-shaped frame is provided with bristles.

[0009] Furthermore, a dryer is detachably mounted on the side wall of the generator body and located in front of the filter cartridge, and the output end of the air outlet pipe is connected to the air inlet end of the dryer.

[0010] Furthermore, a liquid level meter is vertically embedded and installed on one side of the front end of the generator body, and a pressure gauge is embedded and installed on the upper part of the front wall of the generator body.

[0011] Furthermore, a filling port is fixedly installed on one side of the top of the generator body, and the filling port is connected to the electrolytic cell inside the generator body.

[0012] Furthermore, a water inlet is provided at the top of the filter cartridge, a drain outlet is provided at the bottom of the filter cartridge, and sealing covers are provided on the water inlet and the drain outlet.

[0013] Furthermore, a flow display screen is embedded and installed on the front wall of the generator body and on the other side of the liquid level meter.

[0014] Furthermore, a check valve is fixedly installed on the air intake pipe.

[0015] The beneficial effects of the utility model are:

[0016] The utility model allows air to first enter the filter cartridge through the air intake pipe, and then uses the water in the filter cartridge to filter the air. By using water for filtering, particulate matter and tiny organisms in the air can be stuck to the water, so as to achieve the purpose of purifying the air, and the filtering effect is good, and the cost of replacing the water in the later stage is lower than that of traditional filter materials. After long-term use, the servo motor can be started to drive the U-shaped frame in the filter cartridge to rotate, so that the inside of the filter cartridge can be cleaned with bristles to prevent dirt from affecting the filtering quality, and the cleaning method is simple to operate and saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a front view structural schematic diagram of a high-purity nitrogen generator proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the removal structure of a filter cartridge of a high-purity nitrogen generator proposed by the utility model;

[0020] Figure 3 The utility model provides a schematic diagram of the cross-sectional structure of a filter cartridge of a high-purity nitrogen generator.

[0021] In the figure: 1. Generator body; 2. Groove; 3. Filter cartridge; 4. Air inlet pipe; 5. Check valve; 6. Air outlet pipe; 7. Filling port; 8. Liquid level gauge; 9. Pressure gauge; 10. Flow display screen; 11. Air outlet; 12. Air inlet; 13. Water inlet; 14. Drain outlet; 15. Servo motor; 16. Sealed bearing; 17. U-shaped frame; 18. Brush; 19. Dryer. DETAILED DESCRIPTION

[0022] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0023] refer to Figure 1 , a high-purity nitrogen generator, comprising a generator body 1 and a filter cartridge 3;

[0024] A groove 2 is provided on the side wall of the generator body 1, and a filter cartridge 3 is fixedly installed in the groove 2. An air outlet 11 and an air inlet 12 are respectively provided at both ends of the top of the rear wall of the generator body 1. An air inlet pipe 4 is fixedly installed below one side of the filter cartridge 3, and the air inlet pipe 4 is connected to the air inlet 12. An air outlet pipe 6 is fixedly installed above the other side of the filter cartridge 3.

[0025] Among them, a drier 19 is detachably installed on the side wall of the generator body 1 and located in front of the filter cartridge 3. The interior of the drier 19 is filled with a variety of desiccants. The output end of the air outlet pipe 6 is connected to the air inlet end of the drier 19, and the output end of the drier 19 is connected to the electrolytic cell;

[0026] Secondly, a liquid level gauge 8 is vertically embedded and installed on one side of the front end of the generator body 1. The liquid level gauge 8 is used to display the liquid level inside the electrolytic cell. A pressure gauge 9 is embedded and installed above the front wall of the generator body 1. The pressure gauge 9 is used to display the intake pressure. A flow display screen 10 is embedded and installed on the front wall of the generator body 1 and located on the other side of the liquid level gauge 8. The flow display screen 10 is used to display the nitrogen flow rate;

[0027] In addition, a filling port 7 is fixedly installed on one side of the top of the generator body 1, and the filling port 7 is connected to the electrolytic cell inside the generator body 1, and water can be added to the electrolytic cell through the filling port 7;

[0028] It should be noted that a check valve 5 is fixedly installed on the air inlet pipe 4, and the check valve 5 can ensure that the air inlet pipe 4 sends air into the filter cartridge 3 while preventing water inside the filter cartridge 3 from flowing out along the air inlet pipe 4;

[0029] In this embodiment, the air pump output end can be connected through the air inlet 12, so that the air pump is used to draw in external air and enter the filter cartridge 3 through the air inlet pipe 4. At this time, the air can be filtered through the water inside the filter cartridge 3, and the treated air can enter the dryer 19 through the air outlet pipe 6 for drying, and then enter the electrolytic cell for reaction to generate nitrogen. In this process, the air intake pressure value can be monitored in real time through the pressure gauge 9, and the nitrogen can be detected through the internal flow meter after it is generated, and the detected value can be displayed through the flow display screen 10, which improves the convenience of use. After the nitrogen is generated, it can be discharged through the air outlet 11. During use, the remaining amount inside the electrolytic cell can be conveniently checked through the liquid level meter 8.

[0030] refer to Figure 1-3 A servo motor 15 is embedded and installed at the bottom of the groove 2 and located in the generator body 1. A sealed bearing 16 is provided at the bottom of the filter cartridge 3. A U-shaped frame 17 is movably installed at the bottom of the filter cartridge 3 through the sealed bearing 16. The top rotating shaft of the servo motor 15 is connected to the U-shaped frame 17 through the sealed bearing 16. The outer wall of the U-shaped frame 17 is provided with bristles 18, and the bristles 18 are closely attached to the inner wall of the filter cartridge 3.

[0031] The top of the filter cartridge 3 is provided with a water inlet 13, the bottom of the filter cartridge 3 is provided with a drain outlet 14, and both the water inlet 13 and the drain outlet 14 are provided with sealing covers;

[0032] In this embodiment, the U-shaped frame 17 can be driven to rotate inside the filter cartridge 3 by starting the servo motor 15. At this time, the bristles 18 on the outer wall of the U-shaped frame 17 can brush the inner wall of the filter cartridge 3. After brushing, the drain port 14 can be opened to discharge the waste water, thereby preventing internal contamination of the filter cartridge 3 from affecting the filtering effect and improving the convenience of subsequent cleaning.

[0033] Working principle: First, the air inlet 12 can be connected to the air inlet end, and then the air can enter the filter cartridge 3 through the air inlet 12 and the air inlet pipe 4. At this time, the air can directly enter the water inside the filter cartridge 3 for filtration. The air after filtration can enter the dryer 19 from the air outlet pipe 6. The dryer 19 can dry the filtered air. The clean air after treatment can enter the electrolytic cell for reaction, thereby generating nitrogen. Finally, the nitrogen can be discharged from the air outlet 11 for collection. After a certain period of use, the water in the filter cartridge 3 can be discharged through the drain port 14, and the water can be refilled through the water injection port 13, so as to achieve water replacement and ensure the filtration quality. The servo motor 15 can also be regularly turned on to drive the U-shaped frame 17 to rotate in the filter cartridge 3. At this time, the bristles 18 on the outer wall of the U-shaped frame 17 can scrub the inner wall of the filter cartridge 3, thereby preventing the inner wall of the filter cartridge 3 from being contaminated with dirt and affecting the filtration quality. In the scrubbing process, tap water can be continuously added from the water injection port 13, and the drain port 14 can be opened to ensure the scrubbing quality.

[0034] It is understandable that the servo motor driving mode in the utility model can be driven by an external power line, and the servo motor can be programmed and controlled by a main control system, and its control principle can be realized by existing control technology. The model of the servo motor is not limited to a single type and can be a type that is suitable for the utility model on the market.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-purity nitrogen generator, characterized in that: It comprises a generator body (1) and a filter cartridge (3); The side wall of the generator body (1) is provided with a groove (2), the filter cartridge (3) is fixedly installed in the groove (2), the top two ends of the rear wall of the generator body (1) are respectively provided with an air outlet (11) and an air inlet (12), an air inlet pipe (4) is fixedly installed below one side of the filter cartridge (3), the air inlet pipe (4) is connected to the air inlet (12), and an air outlet pipe (6) is fixedly installed above the other side of the filter cartridge (3); A servo motor (15) is embedded and installed at the bottom of the groove (2) and located inside the generator body (1); a sealed bearing (16) is provided at the bottom of the filter cartridge (3); a U-shaped frame (17) is movably installed at the bottom of the filter cartridge (3) via the sealed bearing (16); the top rotating shaft of the servo motor (15) is transmission-connected to the U-shaped frame (17) via the sealed bearing (16); and bristles (18) are provided on the outer wall of the U-shaped frame (17).

2. A high-purity nitrogen generator according to claim 1, characterized in that: A dryer (19) is detachably mounted on the side wall of the generator body (1) and located in front of the filter cartridge (3), and the output end of the air outlet pipe (6) is connected to the air inlet end of the dryer (19).

3. A high-purity nitrogen generator according to claim 1, characterized in that: A liquid level meter (8) is vertically embedded and installed on one side of the front end of the generator body (1), and a pressure gauge (9) is embedded and installed above the front wall of the generator body (1).

4. A high-purity nitrogen generator according to claim 1, characterized in that: A filling port (7) is fixedly mounted on one side of the top of the generator body (1), and the filling port (7) is connected to the electrolytic cell inside the generator body (1).

5. A high-purity nitrogen generator according to claim 1, characterized in that: The top of the filter cartridge (3) is provided with a water inlet (13), the bottom of the filter cartridge (3) is provided with a water outlet (14), and both the water inlet (13) and the water outlet (14) are provided with sealing covers.

6. A high-purity nitrogen generator according to claim 1, characterized in that: A flow display screen (10) is embedded and installed on the front wall of the generator body (1) and located on the other side of the liquid level meter (8).

7. A high-purity nitrogen generator according to claim 1, characterized in that: A check valve (5) is fixedly mounted on the air intake pipe (4).

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