A pressure swing adsorption nitrogen production device

Abstract

The present invention discloses a pressure swing adsorption nitrogen making device, including a base, a gas storage tank, a drying box, a water tank and a pressure swing adsorption nitrogen making machine body. The gas storage tank, the drying box, the water tank and the pressure swing adsorption nitrogen making machine body are fixedly installed on the top of the base from left to right in sequence, and the tops of both sides of the gas storage tank are respectively fixedly connected with an air inlet pipe and an air outlet pipe. This pressure swing adsorption nitrogen making device, through a filtering mechanism, allows impurities in the air to be blocked by a filter before the air enters the pressure swing adsorption nitrogen making machine body, thereby improving the quality of the air entering the pressure swing adsorption nitrogen making machine body, and people can control the rotation of a hand wheel to make two threaded rods rotate simultaneously under the transmission of two connecting gears and a chain, thereby driving the frame to move, so that a clean filter enters the interior of the filter box, and a dirty filter is separated from the interior of the filter box. The operation is simple and quick, so that people can clean the dirty filter without shutting off the air supply.

Description

Technical Field

[0001] The present invention relates to a nitrogen production device, specifically a pressure swing adsorption nitrogen production device. Background Art

[0002] Taking air as raw material, using carbon molecular sieve as adsorbent, applying the principle of pressure swing adsorption, and separating nitrogen and oxygen by the selective adsorption of carbon molecular sieve to oxygen and nitrogen, this method is generally called PSA nitrogen production. There are three types in industry, namely cryogenic air separation method, molecular sieve air separation method (PSA), and membrane air separation method.

[0003] Currently, most nitrogen production processes use pressure swing adsorption nitrogen generators, but the existing pressure swing adsorption nitrogen generators still have the following problems: 1. Poor drying effect; 2. When cleaning the filter screen, the gas supply pipeline needs to be closed first, which affects the overall nitrogen production efficiency. Therefore, we make improvements and propose a pressure swing adsorption nitrogen production device. Summary of the Invention

[0004] A pressure swing adsorption nitrogen production device of the present invention includes a base, a gas storage tank, a drying box, a water tank, and a pressure swing adsorption nitrogen production machine body. The gas storage tank, the drying box, the water tank, and the pressure swing adsorption nitrogen production machine body are fixedly installed at the top of the base from left to right in sequence. The top ends on both sides of the gas storage tank are respectively fixedly communicated with an inlet pipe and an outlet pipe. Valves are fixedly installed in the middle of the inlet pipe and the outlet pipe. The end of the outlet pipe is fixedly communicated with an L-shaped pipe. The bottom end of the L-shaped pipe is fixedly communicated with the middle of the top of the drying box. A cooling mechanism is arranged outside the L-shaped pipe. The cooling mechanism consists of a cooling cylinder, a first connecting pipe, a second connecting pipe, a water pump, and two fans. The two fans are respectively fixedly installed on the front and back of the top of the water tank. A circular groove is opened at the bottom of the water tank. A heat dissipation mechanism is arranged inside the circular groove. The heat dissipation mechanism consists of three rotating shafts, a driving gear, two driven gears, a first stirring paddle, two second stirring paddles, and a motor. Three drying mechanisms are arranged inside the drying box. Each of the three drying mechanisms consists of a bracket, a magnetic strip, and a drying package. The bottom of the front of the drying box is fixedly communicated with a first air pipe. A filtering mechanism is arranged at the end of the first air pipe. The filtering mechanism consists of a filtering box, two sealing rings, a frame, two filter screens, two threaded rods, a connecting plate, two connecting gears, and a chain. The end of the filtering box far away from the first air pipe is fixedly communicated with a second air pipe. The end of the second air pipe is fixedly communicated with the air inlet end of the pressure swing adsorption nitrogen production machine body. The water pump is electrically connected to an external power supply through an external power switch. The two fans are electrically connected to an external power supply through external control switches. The motor is electrically connected to an external power supply through an external power switch. The pressure swing adsorption nitrogen production machine body is electrically connected to an external power supply through a control panel thereon.

[0005] As a preferred technical solution of the present invention, the cooling cylinder is fixedly sleeved outside the L-shaped pipe. One end of the bottom of one side of the cooling cylinder is fixedly communicated with one end of the second connecting pipe, and the other end of the second connecting pipe is fixedly communicated with the top of one side of the water tank. One side of the front of the top of the water tank is fixedly communicated with a water inlet pipe.

[0006] As a preferred technical solution of the present invention, one end of the first connecting pipe is fixedly communicated with the top of one side of the cooling cylinder, and the other end of the first connecting pipe is fixedly communicated with the output end of the water pump. The water pump is fixedly installed in the middle of the top of the water tank. The input end of the water pump is fixedly communicated with a circular pipe, and the end of the circular pipe penetrates and extends to the bottom of the inner cavity of the water tank.

[0007] As a preferred technical solution of the present invention, the middle parts of the three rotating shafts are respectively connected to the bottom of the inner cavity of the water tank through sealing bearings. The ends of the three rotating shafts all penetrate and extend into the water tank and are respectively fixedly connected to the bottom ends of the first stirring paddle and the two second stirring paddles.

[0008] As a preferred technical solution of the present invention, the middle parts of the tops of the driving gear and the two driven gears are respectively fixedly connected to the bottom end of the upper rotating shaft. The two driven gears are symmetrically distributed on both sides of the driving gear. The middle part of the bottom end of the driving gear is fixedly connected to the output shaft of the motor. The motor is fixedly installed at the bottom end of the base.

[0009] As a preferred technical solution of the present invention, the three drying bags are respectively placed inside the three brackets. The outsides of the three brackets are all inserted and connected to the inside of the drying box. A plurality of through holes are opened at the bottoms of the three brackets, and connecting rods are arranged in the middle of the fronts of the three brackets.

[0010] As a preferred technical solution of the present invention, the drying box is made of iron. Three clamping grooves are opened on one side of the inner cavity of the drying box. The inside of the three clamping grooves are respectively inserted and connected to the outsides of the three magnetic strips. One sides of the three magnetic strips are respectively fixedly connected to one sides of the three brackets.

[0011] As a preferred technical solution of the present invention, one end of the filter box is fixedly communicated with the end of the first air pipe. The filter box is fixedly installed at the top end of the base. The sealing rings are respectively fixedly installed in the middle of the front and back of the filter box. The outer walls of the frame are all attached to the inner walls of the two sealing rings. The outside of the frame is inserted and connected to the middle of the filter box. The two filter nets are respectively fixedly installed on both sides of the frame.

[0012] As a preferred technical solution of the present invention, one end of the two threaded rods is connected to the middle of the top and bottom ends of the front side of the filter box through bearings, the outside of the two threaded rods is connected to the top and bottom of the connecting plate through bearings, and the top and bottom of the front side of the frame are connected to the external threads of the two threaded rods.

[0013] As a preferred technical solution of the present invention, the ends of the two threaded rods are respectively fixedly connected to the middle parts of the two connecting gears, the chain is wound around the outer teeth of the two connecting gears, and the end of one of the threaded rods passes through one of the connecting gears and is fixedly connected to a hand wheel.

[0014] The beneficial effects of the present invention are:

[0015] 1. The pressure swing adsorption nitrogen making device, through the coordinated use of the cooling cylinder, the first connecting pipe, the second connecting pipe, the water pump and the fan, allows people to control the water pump to allow the water in the water tank to enter the interior of the cooling cylinder, cool the air in the L-shaped tube, liquefy the water vapor in the air into water droplets, and then more easily be absorbed by the drying bag, thereby improving the air drying effect. In addition, through the coordinated use of the rotating shaft, the driving gear, the driven gear, the first stirring paddle, the second stirring paddle and the motor, people can control the motor to allow the first stirring paddle and the second stirring paddle to rotate inside the water tank under the drive of the driven gear, the driving gear and the rotating shaft, thereby causing the water in the water tank to tumble. Moreover, since the first stirring paddle and the second stirring paddle rotate in different directions, the degree of water tumbling is increased. The tumbling of water can increase the contact area with the air, accelerate the cooling of the water, and thereby allow the water to enter the interior of the cooling cylinder at a low temperature, thereby improving practicality.

[0016] 2. This type of PSA nitrogen generator uses a filtering mechanism to block impurities in the air before it enters the PSA nitrogen generator body, thereby improving the quality of the air entering the PSA nitrogen generator body. In addition, people can control the rotation of the hand wheel to make the two threaded rods rotate simultaneously under the transmission of the two connecting gears and chains, thereby driving the frame to move, so that the clean filter enters the interior of the filter box and the dirty filter is separated from the interior of the filter box. The operation is simple and quick, so that people can clean the dirty filter without shutting off the air supply. 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 It is a structural schematic diagram of a pressure swing adsorption nitrogen production device of the present invention;

[0019] Figure 2It is a schematic structural diagram of a cooling cylinder of a pressure swing adsorption nitrogen production device according to the present invention;

[0020] Figure 3 It is a schematic structural diagram of a drying box of a pressure swing adsorption nitrogen production device according to the present invention;

[0021] Figure 4 It is a schematic structural diagram of a filtering mechanism of a pressure swing adsorption nitrogen production device according to the present invention;

[0022] Figure 5 It is a schematic sectional view of a filtering box of a pressure swing adsorption nitrogen production device according to the present invention;

[0023] Figure 6 It is a schematic structural diagram of a water tank of a pressure swing adsorption nitrogen production device according to the present invention.

[0024] In the figure: 1, base; 2, gas storage tank; 3, drying box; 4, water tank; 5, pressure swing adsorption nitrogen production machine body; 6, intake pipe; 7, outlet pipe; 8, valve; 9, L-shaped pipe; 10, bracket; 11, water pump; 12, first connecting pipe; 13, cooling cylinder; 14, second connecting pipe; 15, fan; 16, circular groove; 17, rotating shaft; 18, driving gear; 19, driven gear; 20, first stirring paddle; 21, second stirring paddle; 22, motor; 23, first air pipe; 24, filtering mechanism; 25, filtering box; 26, sealing ring; 27, frame; 28, filter screen; 29, threaded rod; 30, connecting plate; 31, connecting gear; 32, chain; 33, second air pipe; 34, magnetic strip; 35, drying packet. Detailed implementation manners

[0025] The following is a description of the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0026] Embodiment: As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown in the figure, a pressure swing adsorption nitrogen production device of the present invention includes a base 1, a gas storage tank 2, a drying box 3, a water tank 4 and a pressure swing adsorption nitrogen production machine body 5. The gas storage tank 2, the drying box 3, the water tank 4 and the pressure swing adsorption nitrogen production machine body 5 are fixedly installed on the top of the base 1 in sequence from left to right. The top ends on both sides of the gas storage tank 2 are respectively fixedly communicated with an inlet pipe 6 and an outlet pipe 7. Valves 8 are fixedly installed in the middle of the inlet pipe 6 and the outlet pipe 7. The end of the outlet pipe 7 is fixedly communicated with an L-shaped pipe 9. The bottom end of the L-shaped pipe 9 is fixedly communicated with the middle of the top of the drying box 3. A cooling mechanism is arranged outside the L-shaped pipe 9. The cooling mechanism consists of a cooling cylinder 13, a first connecting pipe 12, a second connecting pipe 14, a water pump 11 and two fans 15. The two fans 15 are respectively fixedly installed on the front and back of the top of the water tank 4. A circular groove 16 is opened at the bottom of the water tank 4. A heat dissipation mechanism is arranged inside the circular groove 16. The heat dissipation mechanism consists of three rotating shafts 17, a driving gear 18, two driven gears 19, a first stirring paddle 20, two second stirring paddles 21 and a motor 22. Three drying mechanisms are arranged inside the drying box 3. Each of the three drying mechanisms consists of a bracket 10, a magnetic strip 34 and a drying packet 35. The bottom of the front of the drying box 3 is fixedly communicated with a first air pipe 23. A filtering mechanism 24 is arranged at the end of the first air pipe 23. The filtering mechanism 24 consists of a filtering box 25, two sealing rings 26, a frame 27, two filter meshes 28, two threaded rods 29, a connecting plate 30, two connecting gears 31 and a chain 32. The end of the filtering box 25 far away from the first air pipe 23 is fixedly communicated with a second air pipe 33. The end of the second air pipe 33 is fixedly communicated with the air inlet end of the pressure swing adsorption nitrogen production machine body 5. The water pump 11 is electrically connected to an external power supply through an external power switch. The two fans 15 are both electrically connected to an external power supply through external control switches. The motor 22 is electrically connected to an external power supply through an external power switch. The pressure swing adsorption nitrogen production machine body 5 is electrically connected to an external power supply through the control panel thereon.

[0027] Among them, the cooling cylinder 13 is fixedly sleeved outside the L-shaped pipe 9. The bottom end on one side of the cooling cylinder 13 is fixedly communicated with one end of the second connecting pipe 14. The other end of the second connecting pipe 14 is fixedly communicated with the top of one side of the water tank 4. One side of the front of the top of the water tank 4 is fixedly communicated with a water inlet pipe. Through the water inlet pipe, people can inject water into the inside of the water tank 4.

[0028] Among them, one end of the first connecting pipe 12 is fixedly communicated with the top end of one side of the cooling cylinder 13, and the other end of the first connecting pipe 12 is fixedly communicated with the output end of the water pump 11. The water pump 11 is fixedly installed in the middle of the top end of the water tank 4. The input end of the water pump 11 is fixedly communicated with a round pipe, and the end of the round pipe penetrates and extends to the bottom of the inner cavity of the water tank 4. Through the coordinated use of the water pump 11, the first connecting pipe 12 and the second connecting pipe 14, people can control the water pump 11 to inject the water in the water tank 4 into the inside of the cooling cylinder 13 and finally circulate back to the inside of the water tank 4 for recycling.

[0029] Among them, the middle parts of the three rotating shafts 17 are respectively connected to the bottom of the inner cavity of the water tank 4 through sealed bearings. The ends of the three rotating shafts 17 all penetrate and extend into the inside of the water tank 4 and are respectively fixedly connected to the bottom ends of the first stirring paddle 20 and the two second stirring paddles 21. Through the coordinated use of the rotating shaft 17, the driving gear 18, the driven gears 19, the first stirring paddle 20, the second stirring paddle 21 and the motor 22, people can control the motor 22 to make the first stirring paddle 20 and the second stirring paddle 21 rotate inside the water tank 4 under the transmission of the driven gear 19, the driving gear 18 and the rotating shaft 17, thereby making the water in the water tank 4 roll. And because the rotation directions of the first stirring paddle 20 and the second stirring paddle 21 are different, the degree of water rolling is increased. The water rolling can increase the contact area with the air and accelerate the cooling of the water, so that the water can enter the inside of the cooling cylinder 13 while maintaining a low temperature, improving the practicability.

[0030] Among them, the middle parts of the tops of the driving gear 18 and the two driven gears 19 are respectively fixedly connected to the bottom end of the upper rotating shaft 17. The two driven gears 19 are symmetrically distributed on both sides of the driving gear 18. The middle part of the bottom end of the driving gear 18 is fixedly connected to the output shaft of the motor 22. The motor 22 is fixedly installed at the bottom end of the base 1. Through the connection of the driving gear 18 and the driven gears 19, when the output shaft of the motor 22 rotates, it can drive the three rotating shafts 17 to rotate simultaneously.

[0031] Among them, the three drying packages 35 are respectively placed inside the three brackets 10. The exteriors of the three brackets 10 are all inserted into the inside of the drying box 3. A plurality of through holes are opened at the bottoms of the three brackets 10. Connecting rods are arranged in the middle of the fronts of the three brackets 10. Through the connecting rods, it is convenient for people to pull the brackets 10.

[0032] Among them, the drying box 3 is made of iron. Three card slots are opened on one side of the inner cavity of the drying box 3. The interiors of the three card slots are respectively inserted with the exteriors of the three magnetic strips 34. One sides of the three magnetic strips 34 are respectively fixedly connected to one side of the three brackets 10. Through the magnetic force of the magnetic strips 34, after the magnetic strips 34 enter the inside of the drying box 3 and are inserted into the inside of the card slots, the brackets 10 can be fixed inside the drying box 3.

[0033] Among them, one end of the filter box 25 is fixedly communicated with the end of the first air pipe 23. The filter box 25 is fixedly installed at the top of the base 1. Sealing rings 26 are respectively fixedly installed in the middle of the front and back of the filter box 25. The outer walls of the frame 27 are all attached to the inner walls of the two sealing rings 26. The outside of the frame 27 is inserted and connected with the middle of the filter box 25. Two filter meshes 28 are respectively fixedly installed on both sides of the frame 27. Through the filtering mechanism 24, before the air enters the pressure swing adsorption nitrogen generation machine body 5, impurities in the air can be blocked by the filter meshes 28, improving the quality of the air entering the pressure swing adsorption nitrogen generation machine body 5. And people can control the rotation of the hand wheel, so that the two threaded rods 29 rotate simultaneously under the drive of the two connecting gears 31 and the chain 32, thereby driving the frame 27 to move, so that the clean filter mesh 28 enters the inside of the filter box 25, and the dirty filter mesh 28 is separated from the inside of the filter box 25. The operation is simple and fast, enabling people to clean the dirty filter mesh 28 without shutting off the air supply.

[0034] Among them, one end of each of the two threaded rods 29 is connected to the middle of the top and bottom of the front of the filter box 25 through bearings respectively. The outer parts of the two threaded rods 29 are connected to the top and bottom of the connecting plate 30 through bearings respectively. The top and bottom of the front of the frame 27 are respectively threadedly connected to the outer parts of the two threaded rods 29, ensuring that the two threaded rods 29 can drive the frame 27 to move when rotating.

[0035] Among them, the ends of the two threaded rods 29 are respectively fixedly connected to the middle of the two connecting gears 31. The chain 32 is wound around the outer teeth of the two connecting gears 31. The end of one of the threaded rods 29 passes through one of the connecting gears 31 and is fixedly connected with a hand wheel, which facilitates people to rotate the threaded rod 29.

[0036] During operation, first, water is injected into the interior of the water tank 4 through the water inlet pipe on the water tank 4, and the water level is controlled to be three - quarters of the height of the water tank 4, lower than the second connecting pipe 14. After the injection is completed, the water injection stops. Then, control the start of the two blowers 15, the water pump 11, the motor 22, and the pressure swing adsorption nitrogen generator body 5. The water pump 11 injects the water in the water tank 4 into the interior of the cooling cylinder 13 through the first connecting pipe 12 and returns it to the interior of the water tank 4 through the second connecting pipe 14. The wind blown by the blower 15 dissipates the heat of the water in the water tank 4. The output shaft of the motor 22 drives the three rotating shafts 17 to rotate through the driving gear 18 and the two driven gears 19. The three rotating shafts 17 drive the first stirring paddle 20 and the two second stirring paddles 21 to rotate and stir the water in the water tank 4. Open the valve 8 on the air inlet pipe 6 to inject air into the gas storage tank 2. After the injection is completed, close the valve 8 on the air inlet pipe 6 and open the valve 8 on the air outlet pipe 7. The air is injected into the interior of the drying box 3 through the air outlet pipe 7 and the L - shaped pipe 9. When the air passes through the interior of the L - shaped pipe 9, the water in the water tank 4 enters the interior of the cooling cylinder 13 to cool the air in the L - shaped pipe 9, causing the water vapor in the air to liquefy into water droplets, which are then more easily absorbed by the drying package 35. After the air enters the interior of the drying box 3, most of the water vapor and water droplets in the air are absorbed by the drying package 35. The air enters the interior of the filter box 25 through the first air pipe 23. The impurities in the air are blocked by the filter screen 28. The air enters the interior of the pressure swing adsorption nitrogen generator body 5 through the second air pipe 33 for the nitrogen production process. When it is necessary to clean the dirty filter screen 28, rotate the handwheel, so that the two threaded rods 29 rotate simultaneously under the drive of the two connecting gears 31 and the chain 32. The two threaded rods 29 drive the frame 27 to move, so that the clean filter screen 28 enters the interior of the filter box 25, and the dirty filter screen 28 is separated from the interior of the filter box 25, and then clean the dirty filter screen 28. When nitrogen production is not required, turn off the power supplies of the blower 15, the water pump 11, the motor 22, and the pressure swing adsorption nitrogen generator body 5. When it is necessary to replace the drying package 35, pull the three connecting rods outwards forcefully, so that the three magnetic strips 34 are separated from the inner walls of the three card slots, and separate the three water pumps 11 from the interior of the drying box 3. Take out the three drying packages 35 from the interiors of the three water pumps 11. Place the new three drying packages 35 on the three brackets 10, push the three brackets 10 into the interior of the drying box 3, and make the three magnetic strips 34 fit with the inner walls of the three card slots.

[0037] Finally, it should be noted that the above - mentioned are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pressure swing adsorption nitrogen production device, characterized in that, It includes a base (1), a gas storage tank (2), a drying box (3), a water tank (4) and a pressure swing adsorption nitrogen generator body (5). The gas storage tank (2), the drying box (3), the water tank (4) and the pressure swing adsorption nitrogen generator body (5) are fixedly installed at the top of the base (1) in sequence from left to right. At the top ends on both sides of the gas storage tank (2), an inlet pipe (6) and an outlet pipe (7) are respectively fixedly connected. Valves (8) are fixedly installed in the middle of the inlet pipe (6) and the outlet pipe (7). At the end of the outlet pipe (7), an L-shaped pipe (9) is fixedly connected. The bottom end of the L-shaped pipe (9) is fixedly connected to the middle of the top of the drying box (3). A cooling mechanism is arranged outside the L-shaped pipe (9). The cooling mechanism is composed of a cooling cylinder (13), a first connecting pipe (12), a second connecting pipe (14), a water pump (11) and two fans (15). The two fans (15) are respectively fixedly installed on the front and back of the top of the water tank (4). A circular groove (16) is opened at the bottom of the water tank (4). A heat dissipation mechanism is arranged inside the circular groove (16). The heat dissipation mechanism is composed of three rotating shafts (17), a driving gear (18), two driven gears (19), a first stirring paddle (20), two second stirring paddles (21) and a motor (22). Three drying mechanisms are arranged inside the drying box (3). The three drying mechanisms are all composed of a bracket (10), a magnetic strip (34) and a drying packet (35). At the bottom of the front of the drying box (3), a first air pipe (23) is fixedly connected. A filtering mechanism (24) is arranged at the end of the first air pipe (23). The filtering mechanism (24) is composed of a filtering box (25), two sealing rings (26), a frame (27), two filter meshes (28), two threaded rods (29), a connecting plate (30), two connecting gears (31) and a chain (32). At the end of the filtering box (25) away from the first air pipe (23), a second air pipe (33) is fixedly connected. The end of the second air pipe (33) is fixedly connected to the air inlet end of the pressure swing adsorption nitrogen generator body (5). The water pump (11) is electrically connected to an external power supply through an external power switch. The two fans (15) are both electrically connected to an external power supply through external control switches. The motor (22) is electrically connected to an external power supply through an external power switch. The pressure swing adsorption nitrogen generator body (5) is electrically connected to an external power supply through the control panel on it; One end of the filtering box (25) is fixedly connected to the end of the first air pipe (23). The filtering box (25) is fixedly installed at the top of the base (1). The sealing rings (26) are respectively fixedly installed in the middle of the front and back of the filtering box (25). The outer wall of the frame (27) is fitted with the inner walls of the two sealing rings (26). The outside of the frame (27) is inserted into the middle of the filtering box (25). The two filter meshes (28) are respectively fixedly installed on both sides of the frame (27);The drying oven (3) is made of iron. On one side of the inner cavity of the drying oven (3), three clamping grooves are provided. The inside of the three clamping grooves are respectively inserted and connected with the outside of three magnetic strips (34). One sides of the three magnetic strips (34) are respectively fixedly connected with one sides of three brackets (10).; 2. The pressure swing adsorption nitrogen production device according to claim 1, characterized in that, The cooling cylinder (13) is fixedly sleeved outside the L-shaped pipe (9). The bottom end of one side of the cooling cylinder (13) is fixedly communicated with one end of the second connecting pipe (14). The other end of the second connecting pipe (14) is fixedly communicated with the top of one side of the water tank (4). One side of the front of the top end of the water tank (4) is fixedly communicated with a water inlet pipe.

3. The pressure swing adsorption nitrogen production device according to claim 1, characterized in that, One end of the first connecting pipe (12) is fixedly communicated with the top end of one side of the cooling cylinder (13). The other end of the first connecting pipe (12) is fixedly communicated with the output end of the water pump (11). The water pump (11) is fixedly installed in the middle of the top end of the water tank (4). The input end of the water pump (11) is fixedly communicated with a circular pipe. The end of the circular pipe penetrates and extends to the bottom of the inner cavity of the water tank (4).

4. A pressure swing adsorption nitrogen generation device according to claim 1, characterized in that, The middle parts of the three rotating shafts (17) are respectively connected with the bottom of the inner cavity of the water tank (4) through sealed bearings. The end parts of the three rotating shafts (17) all penetrate and extend into the inside of the water tank (4) and are respectively fixedly connected with the bottom ends of the first stirring paddle (20) and the two second stirring paddles (21).

5. The pressure swing adsorption nitrogen production device according to claim 1, characterized in that, The middle parts of the tops of the driving gear (18) and the two driven gears (19) are respectively fixedly connected with the bottom ends of the rotating shafts (17). The two driven gears (19) are symmetrically distributed on both sides of the driving gear (18). The middle part of the bottom end of the driving gear (18) is fixedly connected with the output shaft of the motor (22). The motor (22) is fixedly installed at the bottom end of the base (1).

6. The pressure swing adsorption nitrogen production device according to claim 1, wherein, The three drying packets (35) are respectively placed inside the three brackets (10). The outsides of the three brackets (10) are all inserted and connected with the inside of the drying box (3). A plurality of through holes are formed in the bottoms of the three brackets (10). Connecting rods are arranged in the middle of the fronts of the three brackets (10).

7. A pressure swing adsorption nitrogen production device according to claim 1, characterized in that, One ends of the two threaded rods (29) are respectively connected with the middle parts of the top end and the bottom end of the front of the filter box (25) through bearings. The outer parts of the two threaded rods (29) are respectively connected with the top and the bottom of the connecting plate (30) through bearings. The top and the bottom of the front of the frame (27) are respectively threadedly connected with the outer parts of the two threaded rods (29).

8. A pressure swing adsorption nitrogen production device according to claim 1, characterized in that, The end parts of the two threaded rods (29) are respectively fixedly connected with the middle parts of the two connecting gears (31). The chain (32) is wound around the outer teeth of the two connecting gears (31). The end part of one of the threaded rods (29) penetrates through one of the connecting gears (31) and is fixedly connected with a handwheel.

Images