Container type membrane separation nitrogen making machine

Abstract

The invention discloses a container type membrane separation nitrogen making machine, and relates to the technical field of membrane separation nitrogen making, the container type membrane separation nitrogen making machine comprises a heating mechanism, the heating mechanism comprises a gas inlet box, one side of the gas inlet box is fixedly connected with two groups of gas inlet fans, and the inner wall of the gas inlet box is sleeved with a plurality of groups of first heat conduction copper pipes; the inner wall of the air inlet box is sleeved with a plurality of sets of second heat conduction copper pipes. Through rotation of separation blades, air enters the separation bin in the tangential direction of the inner wall of the separation bin and then rapidly rotates, so that water in the air is condensed on the inner wall of the separation bin through centrifugal force, and the temperature of the air is high after the air is heated by a first heat conduction copper pipe and a second heat conduction copper pipe; by means of the structure, moisture in hot air is more easily condensed when making contact with the interior of the low-temperature separation bin, the moisture in the air is removed, the concentration and efficiency of prepared nitrogen are improved, the situation that the filtering effect of a polymeric membrane is changed after the moisture makes contact with the polymeric membrane is avoided, and the service life of the polymeric membrane is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of membrane separation nitrogen production, in particular to a container-type membrane separation nitrogen production machine. Background Art

[0002] A nitrogen generator uses air as its raw material and physically separates oxygen and nitrogen to produce nitrogen. A containerized nitrogen generator consists of an entire nitrogen production system placed inside a standard container. A membrane separation nitrogen generator uses polymer membrane separation technology to separate nitrogen from air. Its operating principle is based on the difference in diffusion rates of gas molecules on specific materials. By selecting appropriate membrane materials, it effectively separates nitrogen (approximately 78%), the most abundant gas in the air, from other gas components such as oxygen (21%) and carbon dioxide, thereby producing high-purity nitrogen.

[0003] The existing patent (publication number: CN220201444U) discloses a container-type nitrogen generator, which includes a box body, a nitrogen-generating mechanism is fixedly installed on the bottom of the inner side of the box body through a fixing seat, and wheels are symmetrically rotatably installed on both sides of the bottom of the box body. By sliding a clamping plate upward inside a limiting groove, the bottom end of the clamping plate is separated from the slot, and the clamping plate is fixed by a magnet; the box body can be removed from the top of the base by the wheels, so as to facilitate the movement of the nitrogen generator, which is simple to operate and easy to use; the box body can be limited by the clamping connection between the clamping plate and the clamping slot to prevent the nitrogen generator from moving during use; the air entering the box body can be filtered by a filtering mechanism such as a filter screen, an inclined surface, a drain port and a fixed cover to avoid affecting the nitrogen-generating mechanism, and the air inside the box body can be discharged by the filtering mechanism and the exhaust pipe to facilitate heat dissipation.

[0004] However, the above technical solution still has certain defects. When separating and producing nitrogen, moisture in the air will enter the nitrogen generator. After entering the nitrogen generator, this moisture will cause oxidation and corrosion of the internal parts of the nitrogen generator, and will cause the nitrogen concentration in the air to decrease, thereby reducing the nitrogen production efficiency. For this reason, a containerized membrane separation nitrogen generator is proposed. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a container-type membrane separation nitrogen generator to solve the technical problems raised in the above background.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a container-type membrane separation nitrogen generator, comprising a heating mechanism, the heating mechanism comprising an air intake box, two groups of air intake fans fixedly connected to one side of the air intake box, the inner wall of the air intake box is sheathed with multiple groups of first heat-conducting copper tubes, the inner wall of the air intake box is sheathed with multiple groups of second heat-conducting copper tubes, the first heat-conducting copper tubes and the second heat-conducting copper tubes are staggered on the inner wall of the air intake box, the side wall of each group of the first heat-conducting copper tubes is respectively provided with a group of inner grooves, the interior of the air intake box is provided with an air duct, and the side wall of the air intake box is connected to a guide port; The end of the guide port is connected to a separation mechanism, which includes a separation bin, a motor fixedly installed at the bottom end of the separation bin, and a rotating shaft fixedly connected to the output of the motor. The rotation of the rotating shaft is connected to the inner wall of the separation bin, and the top of the rotating shaft extends to the top of the separation bin. The outer wall of the rotating shaft is fixedly connected to multiple groups of separation blades, and the separation blades are located inside the separation bin.

[0007] As an optimal technical solution, the bottom end of the separation bin is connected to a drain valve, the side wall of the separation bin is provided with a cooling interlayer, the side wall of the separation bin is provided with a heat dissipation water tank, the side wall of the heat dissipation water tank is connected to the top of the cooling interlayer at the top end, and the side wall of the heat dissipation water tank is connected to the bottom of the cooling interlayer at the bottom end.

[0008] As an optimal technical solution, a filtering mechanism is provided at the top of the separation bin, and the filtering mechanism includes a turntable, which is fixedly connected to the top of the rotating shaft. The top of the rotating shaft is an inclined surface, and a sliding groove is provided at the top of the rotating shaft.

[0009] As an optimal technical solution, the inner wall sliding sleeve of the slide groove is provided with multiple groups of ball heads, the outer wall of each group of ball heads is fixedly connected to a group of push rods, and the top end of the push rods is fixedly connected to a piston.

[0010] As an optimal technical solution, the outer wall sliding sleeve of the piston is provided with a sleeve, the top of the sleeve is fixedly connected to a first one-way valve, the top of the sleeve is fixedly connected to a second one-way valve, and the first one-way valve is close to the outer ring of the turntable.

[0011] As an optimal technical solution, the top ends of multiple groups of the first one-way valves are connected to two groups of first connecting pipes, the ends of the two groups of the first connecting pipes are connected to the top end of the separation bin, and the top ends of multiple groups of the second one-way valves are connected to the second connecting pipes, and the top ends of the second connecting pipes are connected to the filter barrel.

[0012] As a preferred technical solution, the top of the filter barrel is connected to an exhaust port, and a polymer membrane is fixedly sleeved on the inner wall of the filter barrel near the top.

[0013] As an optimal technical solution, the internal fixed sleeve of the filter barrel is provided with an air intake hood, the air intake hood is located below the polymer membrane, the interior of the air intake hood is fixedly connected to an inner flow guide hood, the inner wall of the inner flow guide hood is fixedly connected to a low-pressure cone, the inner wall of the inner flow guide hood is fixedly connected to a diversion skirt near the top position, and the diversion skirt is arranged on the outside of the low-pressure cone.

[0014] In summary, the present invention mainly has the following beneficial effects: 1. The present invention drives the rotating shaft to rotate by the motor, so that the rotating shaft drives the separation blades to rotate, so that the air enters the separation chamber along the tangential direction of the inner wall of the separation chamber and rotates rapidly, thereby utilizing centrifugal force to condense the moisture in the air on the inner wall of the separation chamber, and the air is preliminarily cooled in the process of passing through the first heat-conducting copper tube and the second heat-conducting copper tube. The separation chamber maintains a relatively low temperature under the action of the cooling interlayer, the heat dissipation water tank and the coolant in the cooling interlayer, so that the moisture in the hot air is more easily condensed when it contacts the low-temperature separation chamber. Subsequently, the moisture condensed on the inner wall of the separation chamber flows to the bottom end of the inner wall of the separation chamber and is discharged through the drain valve, so that the moisture in the air is removed, thereby improving the concentration and efficiency of the nitrogen produced in the subsequent separation and nitrogen production, avoiding the contact of water vapor with the polymer membrane, reducing the burden of the polymer membrane in the filtration process, and avoiding the change of the filtration effect of the polymer membrane after the contact of moisture with the polymer membrane, thereby extending the service life of the polymer membrane; 2. The present invention drives the turntable to rotate as the shaft rotates, so that the chute at the top of the turntable continuously drives multiple sets of ball heads to rise and fall in sequence. During the process of the ball heads rising and falling, the ball heads drive the push rods to rise or fall, so that the top drives the pistons to slide back and forth on the inner wall of the sleeve. Moreover, each time the turntable rotates one circle, the multiple sets of pistons will slide back and forth once, so that air is pushed into the interior of the filter barrel more continuously and the pressure of the air when it contacts the polymer membrane is guaranteed, thereby promoting the separation speed and ensuring the continuity of the separation process. 3. The present invention, under the action of the Coanda effect, causes these airflows to flow along the outer walls of the air inlet hood, the inner guide hood and the diversion skirt, and part of the airflow flows along the outer wall of the low-pressure cone, so that the airflow can be evenly distributed on the outer wall of the polymer membrane. There will be no problem that the central area of the polymer membrane is subjected to a higher air pressure while the surrounding air pressure is lower. The polymer membrane as a whole is evenly impacted by the airflow, thereby ensuring the separation efficiency and making the polymer membrane not easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 It is a bottom view structural schematic diagram of the present invention; Figure 3Schematic diagram of the cross-sectional structure of the separation mechanism of the present invention; Figure 4 Schematic diagram of the cross-sectional structure of the heating mechanism of the present invention; Figure 5 This is a schematic diagram of the diversion port structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the separation bin of the present invention; Figure 7 Schematic diagram of the mechanism of the first one-way valve, the second one-way valve, the first connecting pipe and the second connecting pipe in a separated state of the present invention; Figure 8 This is a structural schematic diagram of the piston and sleeve of the present invention in a separated state; Figure 9 This is a schematic diagram of the cross-sectional structure of the filter barrel of the present invention; Figure 10 It is a schematic diagram of the cross-sectional structure of the air intake hood of the present invention.

[0016] In the figure: 1. Heating mechanism; 2. Separation mechanism; 3. Filtering mechanism; 101. Air intake box; 102. Air intake fan; 103. First heat-conducting copper tube; 104. Second heat-conducting copper tube; 105. Inner groove; 106. Air duct; 107. Air guide port; 201, separation chamber; 202, cooling interlayer; 203, heat dissipation water tank; 204, motor; 205, rotating shaft; 206, separation blade; 207, drain valve; 301. Turntable; 302. Slide; 303. Ball head; 304. Push rod; 305. Piston; 306. Casing; 307. First one-way valve; 308. Second one-way valve; 309. First connecting pipe; 310. Second connecting pipe; 311. Filter barrel; 312. Exhaust port; 313. Polymer membrane; 314. Inlet hood; 315. Inner guide hood; 316. Low-pressure cone; 317. Diversion skirt. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0018] The following describes an embodiment of the present invention based on its overall structure.

[0019] A containerized membrane separation nitrogen generator, such as Figures 1 to 10As shown, the heating mechanism 1 includes an air intake box 101, two groups of air intake fans 102 are fixedly connected to one side of the air intake box 101, the inner wall of the air intake box 101 is provided with multiple groups of first heat-conducting copper tubes 103, the inner wall of the air intake box 101 is provided with multiple groups of second heat-conducting copper tubes 104, the first heat-conducting copper tubes 103 and the second heat-conducting copper tubes 104 are staggered on the inner wall of the air intake box 101, and the side wall of each group of first heat-conducting copper tubes 103 is respectively provided with a group of inner grooves 105, the interior of the air intake box 101 is provided with an air duct 106, and the side wall of the air intake box 101 is connected with a guide port 107; The end of the guide port 107 is connected to the separation mechanism 2, which includes a separation chamber 201. A motor 204 is fixedly installed at the bottom end of the separation chamber 201. The output of the motor 204 is fixedly connected to a rotating shaft 205. The rotation of the rotating shaft 205 is connected to the inner wall of the separation chamber 201. The top of the rotating shaft 205 extends to the top of the separation chamber 201. The outer wall of the rotating shaft 205 is fixedly connected to multiple groups of separation blades 206. The separation blades 206 are located inside the separation chamber 201. The bottom end of the separation chamber 201 is connected to a drain valve 207. A cooling interlayer is provided on the side wall of the separation chamber 201. A heat dissipation water tank 203 is provided on the side wall of the separation chamber 201. The side wall of the heat dissipation water tank 203 is connected to the top of the cooling interlayer 202 near the top, and the side wall of the heat dissipation water tank 203 is connected to the bottom of the cooling interlayer 202 near the bottom.

[0020] The air intake fan 102 blows air into the air intake box 101, so that the air slides from the outer wall of the first heat-conducting copper tube 103 to the outer wall of the second heat-conducting copper tube 104, and then the air slides from the outer wall of the second heat-conducting copper tube 104 into the inner groove 105, and then the air slides from the inner groove 105 into the outer wall of the first heat-conducting copper tube 103 at the rear, thereby repeating the above process again, so that the air has sufficient contact time with the first heat-conducting copper tube 103 and the second heat-conducting copper tube 104, and then the air is inside the air duct 106, so that the air enters the first heat-conducting copper tube 103 and the second heat-conducting copper tube 104 along the air duct 106. The inner wall of the hot copper tube 104 causes the air to be initially cooled before entering the separation chamber 201, thereby reducing the heat in the air. Then, the air enters the separation chamber 201, and the motor 204 drives the shaft 205 to rotate, so that the shaft 205 drives the separation blades 206 to rotate. When the airflow enters the separation chamber 201, since the airflow flows along the tangent of the inner wall of the separation chamber 201, the airflow rotates along the inner wall of the separation chamber 201, and the rotation of the separation blades 206 further drives the air entering the separation chamber 201 to rotate, and the air is centrifuged during the rotation process. Due to the effect of force, the density of the small water droplets in the air is higher, so that all the small water droplets in the air contact the inner wall of the separation chamber 201. The density of air is smaller than that of the small water droplets, and more of them are concentrated in the middle position of the separation chamber 201. As more and more small water droplets contact the inner wall of the separation chamber 201, these water droplets gather into large water droplets. At this time, these large water droplets flow along the inner wall of the separation chamber 201 to the bottom of the separation chamber 201, thereby removing most of the moisture in the air flow. In this process, the water inside the cooling interlayer 202 is continuously dissipated through the heat dissipation water tank 203, which reduces the side wall temperature of the separation chamber 201. The temperature is low, and after the air is dissipated by the first heat-conducting copper tube 103 and the second heat-conducting copper tube 104, the heat in the air is reduced, and the water vapor in the air is more likely to condense when it contacts the low-temperature interior of the separation chamber 201. Subsequently, the water condensed on the inner wall of the separation chamber 201 flows to the bottom end of the inner wall of the separation chamber 201, and is then discharged through the drain valve 207, so that the water in the air is removed, thereby improving the concentration and efficiency of the nitrogen produced in the subsequent separation and nitrogen production, and avoiding the change of the filtering effect of the polymer membrane 313 after the water contacts the polymer membrane 313, thereby extending the service life of the polymer membrane 313.

[0021] Please refer to the figure in detail. The bottom end of the separation chamber 201 is connected to a drain valve 207. The side wall of the separation chamber 201 is provided with a cooling interlayer. The side wall of the separation chamber 201 is provided with a heat dissipation water tank 203. The side wall of the heat dissipation water tank 203 is connected to the top of the cooling interlayer 202 by the top position. The side wall of the heat dissipation water tank 203 is connected to the bottom of the cooling interlayer 202 by the bottom position. The top of the separation chamber 201 is provided with a filter mechanism 3. The filter mechanism 3 includes a turntable 301. The turntable 301 is fixedly connected to the top of the rotating shaft 205. The top of the rotating shaft 205 is an inclined surface. The top of the rotating shaft 205 is provided with a slide groove 302. The inner wall sliding sleeve of the slide groove 302 is provided with multiple groups of ball heads 303. Each group The outer wall of the ball head 303 is fixedly connected to a group of push rods 304, the top of the push rods 304 is fixedly connected to the piston 305, the outer wall of the piston 305 is slidably sleeved with a sleeve 306, the top of the sleeve 306 is fixedly connected to a first one-way valve 307, the top of the sleeve 306 is fixedly connected to a second one-way valve 308, the first one-way valve 307 is close to the outer circle direction of the turntable 301, the tops of the multiple groups of first one-way valves 307 are connected to two groups of first connecting pipes 309, the ends of the two groups of first connecting pipes 309 are connected to the top of the separation chamber 201, the tops of the multiple groups of second one-way valves 308 are connected to the second connecting pipe 310, and the top of the second connecting pipe 310 is connected to the filter barrel 311.

[0022] The rotating disk 301 is driven to rotate during the rotation of the rotating shaft 205, so that the slide groove 302 at the top of the rotating disk 301 continuously drives the multiple sets of ball heads 303 to rise and fall in sequence. During the rising and falling process of the ball heads 303, the ball heads 303 drive the push rods 304 to rise or fall, so that the top drives the piston 305 to slide back and forth on the inner wall of the sleeve 306. During the reciprocating sliding of the piston 305, when the piston 305 slides downward, the first one-way valve 307 opens and the second one-way valve 308 closes, so that the air at the top of the inner wall of the separation chamber 201 passes through the first connecting pipe 309 and then passes through The first one-way valve 307 enters the interior of the sleeve 306. When the piston 305 slides upward, the first one-way valve 307 closes and the second one-way valve 308 opens, so that the air inside the sleeve 306 is pushed upward through the second one-way valve 308 and then enters the interior of the filter barrel 311 through the second connecting pipe 310. Moreover, each time the turntable 301 rotates one circle, multiple groups of pistons 305 will occasionally slide back and forth up and down once, so that the air is pushed into the interior of the filter barrel 311 more continuously, and the pressure of the air when it contacts the polymer membrane 313 is guaranteed, thereby ensuring the continuity of the separation process.

[0023] Please refer to the figure in particular. The top of the filter barrel 311 is connected to the exhaust port 312, and the inner wall of the filter barrel 311 is fixedly sleeved with a polymer membrane 313 near the top. The inside of the filter barrel 311 is fixedly sleeved with an air intake cover 314, and the air intake cover 314 is located below the polymer membrane 313. The inside of the air intake cover 314 is fixedly connected to the inner guide cover 315, and the inner wall of the inner guide cover 315 is fixedly connected to the low-pressure cone 316. The inner wall of the inner guide cover 315 is fixedly connected to the diversion skirt 317 near the top, and the diversion skirt 317 is sleeved on the outside of the low-pressure cone 316.

[0024] After the air enters the filter barrel 311, it enters the air intake hood 314. After passing through the air intake hood 314, the air contacts the polymer membrane 313, thereby screening the nitrogen in the air. The separated nitrogen is discharged through the exhaust port 312. The thread at the exhaust port 312 can be connected to the gas storage device to store the nitrogen. In the process of the air passing through the air intake hood 314, the air will flow through the outer wall of the inner guide hood 315 and the diversion skirt 317. The air intake hood 314, the inner guide hood 315 and the diversion skirt 317 are all outward-expanding trumpet-shaped. Under the action of the Coanda effect, these airflows will flow along the outer walls of the air intake hood 314, the inner guide hood 315 and the diversion skirt 317, and some airflow will flow along the outer wall of the low-pressure cone 316, so that the overall flow state of the balloon appears as follows Figure 10 The state in the middle allows the airflow to be evenly distributed on the outer wall of the polymer membrane 313, and there will be no problem that the central area of the polymer membrane 313 is subjected to a higher air pressure while the surrounding air pressure is lower. The polymer membrane 313 as a whole is evenly impacted by the airflow, which ensures the separation efficiency and makes the polymer membrane 313 not easily damaged.

[0025] When in use, the motor 204 drives the rotating shaft 205 to rotate, so that the rotating shaft 205 drives the separation blades 206 to rotate, so that the air enters the separation chamber 201 along the tangential direction of the inner wall of the separation chamber 201 and rotates rapidly, thereby using centrifugal force to condense the moisture in the air on the inner wall of the separation chamber 201, and the air is heated by the first heat-conducting copper tube 103 and the second heat-conducting copper tube 104. The separation chamber 201 maintains a low temperature under the action of the cooling interlayer 202, the heat dissipation water tank 203 and the coolant in the cooling interlayer 202, so that the hot air The moisture in the air is more likely to condense when it comes into contact with the low-temperature interior of the separation chamber 201. The moisture condensed on the inner wall of the separation chamber 201 then flows to the bottom of the inner wall of the separation chamber 201 and is then discharged through the drain valve 207, so that the moisture in the air is removed, thereby improving the concentration and efficiency of the nitrogen produced during subsequent separation and nitrogen production, and avoiding the change in the filtering effect of the polymer membrane 313 after the moisture contacts the polymer membrane 313, thereby extending the service life of the polymer membrane 313. The parts not involved in this device are the same as the existing technology or can be implemented using the existing technology.

[0026] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A containerized membrane separation nitrogen generator, comprising a heating mechanism (1), characterized in that: The heating mechanism (1) includes an air intake box (101), one side of the air intake box (101) is fixedly connected to two groups of air intake fans (102), the inner wall of the air intake box (101) is provided with a plurality of groups of first heat-conducting copper tubes (103), the inner wall of the air intake box (101) is provided with a plurality of groups of second heat-conducting copper tubes (104), the first heat-conducting copper tubes (103) and the second heat-conducting copper tubes (104) are staggered on the inner wall of the air intake box (101), and the side wall of each group of the first heat-conducting copper tubes (103) is provided with a group of inner grooves (105), the interior of the air intake box (101) is provided with an air duct (106), and the side wall of the air intake box (101) is connected to a guide port (107); The end of the guide port (107) is connected to a separation mechanism (2), and the separation mechanism (2) includes a separation chamber (201). A motor (204) is fixedly installed at the bottom end of the separation chamber (201), and the output of the motor (204) is fixedly connected to a rotating shaft (205). The rotating shaft (205) is connected to the inner wall of the separation chamber (201), and the top end of the rotating shaft (205) extends above the separation chamber (201). The outer wall of the rotating shaft (205) is fixedly connected to multiple groups of separation blades (206), and the separation blades (206) are located inside the separation chamber (201).

2. A containerized membrane separation nitrogen generator according to claim 1, characterized in that: The bottom end of the separation chamber (201) is connected to a drain valve (207), a cooling interlayer is provided on the side wall of the separation chamber (201), a heat dissipation water tank (203) is provided on the side wall of the separation chamber (201), the side wall of the heat dissipation water tank (203) is connected to the top end of the cooling interlayer (202), and the side wall of the heat dissipation water tank (203) is connected to the bottom end of the cooling interlayer (202) at its bottom end.

3. The containerized membrane separation nitrogen generator according to claim 1, characterized in that: A filtering mechanism (3) is provided at the top of the separation bin (201), and the filtering mechanism (3) comprises a rotating disk (301). The rotating disk (301) is fixedly connected to the top of the rotating shaft (205). The top of the rotating shaft (205) is an inclined surface, and a sliding groove (302) is provided at the top of the rotating shaft (205).

4. A containerized membrane separation nitrogen generator according to claim 3, characterized in that: The inner wall sliding sleeve of the slide groove (302) is provided with a plurality of groups of ball heads (303), and the outer wall of each group of ball heads (303) is fixedly connected to a group of push rods (304), and the top end of the push rods (304) is fixedly connected to a piston (305).

5. The containerized membrane separation nitrogen generator according to claim 4, characterized in that: The outer wall of the piston (305) is slidably sleeved with a sleeve (306), the top end of the sleeve (306) is fixedly connected to a first one-way valve (307), the top end of the sleeve (306) is fixedly connected to a second one-way valve (308), and the first one-way valve (307) is close to the outer ring direction of the turntable (301).

6. The containerized membrane separation nitrogen generator according to claim 5, characterized in that: The top ends of the plurality of groups of the first one-way valves (307) are connected to two groups of first connecting tubes (309), and the ends of the two groups of the first connecting tubes (309) are connected to the top end of the separation chamber (201). The top ends of the plurality of groups of the second one-way valves (308) are connected to the second connecting tubes (310), and the top ends of the second connecting tubes (310) are connected to the filter barrel (311).

7. The containerized membrane separation nitrogen generator according to claim 6, characterized in that: The top end of the filter barrel (311) is connected to an exhaust port (312), and a polymer membrane (313) is fixedly sleeved on the inner wall of the filter barrel (311) near the top end.

8. The containerized membrane separation nitrogen generator according to claim 6, characterized in that: The filter barrel (311) is internally fixedly sleeved with an air intake cover (314), the air intake cover (314) is located below the polymer membrane (313), the air intake cover (314) is internally fixedly connected to an inner flow guide cover (315), the inner wall of the inner flow guide cover (315) is fixedly connected to a low-pressure cone (316), the inner wall of the inner flow guide cover (315) is fixedly connected to a diversion skirt (317) at the top position, and the diversion skirt (317) is sleeved on the outside of the low-pressure cone (316).

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