Multistage oil-gas separation type air compressor

Abstract

The present application relates to oil-gas separation technical field, particularly to a kind of multistage oil-gas separation formula air compressor, including gas storage tank, air compression module, first-stage separation unit, second-stage separation unit, third-stage separation unit;Adopt three-stage series oil-gas separation structure, can be widely applied in the reform upgrading of various oil-containing air compressor;First-stage separation unit has adopted filter screen group based on Fibonacci inverse ratio sequence arrangement, simulates natural flow system, and part of oil droplet is left when oil-gas flow passes, with the characteristics of natural coordination of rhythm, disturbance and convergence level;Second-stage separation unit has adopted multiple umbrella-shaped fairing caps similar to parachute, with good fairing and oil droplet capture characteristics through axial staggered arrangement;Third-stage separation unit is filled with activated carbon particles or glass fiber filter element, for adsorbing residual oil droplet in gas, as the last safeguard of oil-gas separation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil-gas separation, and particularly relates to a multi-stage oil-gas separation type air compressor. BACKGROUND

[0002] Air compressors are widely used in production and life, and can be divided into oil-free air compressors and oil lubricated air compressors according to lubrication modes. Among them, the oil-free air compressor does not use lubricating oil in the compression process, and the compression cavity is completely oil-free. High-performance materials (such as PTFE coating) or water lubrication are usually used to reduce wear and friction, and the technical content is high. It is usually used in high-end application scenarios, such as high-end manufacturing industry, pharmaceutical industry, etc. The compression cavity of the oil lubricated air compressor has lubricating oil participating in lubrication, sealing and cooling. The structure is relatively mature, the efficiency is high, the service life is long, and it is most widely used in general industrial scenes, especially in scenes with high cost control requirements and low gas purity requirements.

[0003] However, for the oil lubricated air compressor, the lubricating oil is inevitably taken out by the air in the compression process to form an oil-gas mixture. If it is not effectively separated, it will cause problems such as oil pollution of downstream equipment, product quality reduction, pipeline blockage and environmental pollution. For the oil-gas separation problem, the existing technology usually adopts mechanical centrifugal separation or filter element separation solution. The oil-gas separation technology using a single separation scheme obviously has many shortcomings, and the comprehensive oil-gas separation technology using multiple schemes integration has the shortcomings of complex integrated system, large volume, large space occupation and unsuitable for small equipment. SUMMARY

[0004] The present application relates to the technical field of oil-gas separation, and particularly relates to a multi-stage oil-gas separation type air compressor.

[0005] To address the aforementioned technical problems, the present invention adopts the following technical solution: a multi-stage oil-gas separation air compressor, comprising an air tank, an air compression module, a primary separation unit, a secondary separation unit, and a tertiary separation unit. The air tank is equipped with a pressure gauge, an air inlet, and an air delivery valve. The air compression module is fixedly mounted on the air tank. The primary separation unit is fixedly mounted on the air tank, with one end connected to the air compression module via a first connecting pipe. The secondary separation unit is fixedly mounted on the air tank, with one end connected to the other end of the primary separation unit via a second connecting pipe. The tertiary separation unit… The unit is fixedly installed on the secondary separation unit. One end of the tertiary separation unit is connected to the other end of the secondary separation unit. The other end of the tertiary separation unit is connected to the gas storage port through a third connecting pipe. The primary separation unit is equipped with multiple filters arranged based on the inverse Fibonacci sequence. The secondary separation unit is equipped with multiple equidistantly distributed parachute-shaped rectifier caps. All parachute-shaped rectifier caps are arranged coaxially about the central axis of the secondary separation unit. Any two adjacent parachute-shaped rectifier caps have different rotation angles about the central axis of the secondary separation unit. The tertiary separation unit is filled with activated carbon particles or glass fiber filter elements.

[0006] Preferably, the gas tank is equipped with four wheels at the bottom and a handle is fixedly installed on the gas tank.

[0007] Preferably, the air compression module includes a controller, a motor, a first pulley, a transmission belt, a second pulley, and an air compression unit. The motor is fixedly mounted on the air tank, the controller is fixedly mounted on the motor and electrically connected to the motor, the first pulley is fixedly mounted on the output shaft of the motor, the second pulley is fixedly mounted on the power input end of the air compression unit, the two sides of the transmission belt are respectively fitted onto the first pulley and the second pulley, and the air compression unit is fixedly mounted on the air tank.

[0008] Preferably, the air compression unit adopts a two-stage tandem piston air compression mechanism, including a transmission box, a first cover plate, a first guide plate, a first intake valve, a first outlet valve, a first cylinder, a median, a first piston, a first connecting rod, a crankshaft, a second cover plate, a second guide plate, a second intake valve, a second outlet valve, a second cylinder, a second piston, and a second connecting rod. The transmission box is fixedly mounted on the air tank. Both ends of the crankshaft are hinged to the transmission box. The crankshaft is the power input end of the air compression unit. The first and second connecting rods are respectively hinged to the crankshaft. The first piston is hinged to the first connecting rod, and the second piston is hinged to the second connecting rod. The first and second cylinders are respectively fixedly mounted on the transmission box. The first piston is slidably mounted inside the first cylinder, and the second piston is slidably mounted inside the second cylinder. The first guide plate is fixedly mounted on the transmission box. A first cover plate is fixedly installed on the first guide plate, and a first intake valve and a first exhaust valve are fixedly installed inside the first guide plate, both of which are connected to the internal chamber of the first cylinder. A second guide plate is fixedly installed on the second cylinder, and a second cover plate is fixedly installed on the second guide plate. A second intake valve and a second exhaust valve are fixedly installed inside the second guide plate, both of which are connected to the internal chamber of the second cylinder. Both ends of the medium tube are fixedly connected to the first guide plate and the second guide plate, respectively, and both ends of the medium tube are connected to the first exhaust valve and the second intake valve, respectively. The outer surface of the medium tube is provided with multiple equidistantly distributed heat dissipation fins. One end of the first connecting pipe is fixedly installed on the second guide plate, and the first connecting pipe is connected to the second exhaust valve.

[0009] Preferably, the air compression unit further includes a filter nozzle, which is fixedly installed on the first guide plate and is connected to the first intake valve. The filter nozzle is used to filter the air drawn in by the first intake valve.

[0010] Preferably, the primary separation unit further includes a separation pipe, which is bent into a U-shape and fixedly installed on the gas storage tank. One end of the separation pipe is fixedly connected to the other end of the first connecting pipe, and the first connecting pipe communicates with the separation pipe. A [missing information - likely a device or component] is fixedly installed inside the separation pipe. n A filter based on the inverse Fibonacci sequence. n Let n be a positive integer, and 3 ≤ n ≤ 10. Let F be a one-dimensional vector matrix formed by the inverse Fibonacci sequence. Then, the expression for F is:

[0011] F=[1,1,2,3,5,8,13,21,34,55];

[0012] Let L1 be the axial distance from the first filter screen to one end of the separator tube. i The filter to the first i -1 The axial distance between the filters is L i F i The first element in a one-dimensional vector matrix F is the... i Each element value, F jThe first element in a one-dimensional vector matrix F is the... j The element value and the length of the separator tube are L. * Then we have:

[0013] .

[0014] Preferably, the different filter screens have different mesh counts, from the first filter screen to the second. n Each filter screen has a mesh size that increases monotonically.

[0015] Preferably, the secondary separation unit further includes a first sealing cover, a first separation cylinder, and a second sealing cover. The first sealing cover is fixedly installed at one end of the first separation cylinder, and the other end of the separation pipe is fixedly connected to one end of the second connecting pipe. The first sealing cover is fixedly connected to the other end of the second connecting pipe, and the second connecting pipe communicates with the interior of both the separation pipe and the first separation cylinder. The second sealing cover is fixedly installed at the other end of the first separation cylinder, and the first separation cylinder is fixedly connected to the gas storage tank. Multiple parachute-shaped fairing caps are fixedly installed inside the first separation cylinder. The inner and outer surfaces of the parachute-shaped fairing caps are similar, equidistant curved surfaces. 0 - xyz The parametric equations in a spatial rectangular coordinate system are:

[0016] ;

[0017] In the formula, υ Both u and u are parameters. ε The disturbance coefficient is... R As the reference radius, c This is the top height coefficient. a This is the bottom depth coefficient. k This represents the disturbance coefficient.

[0018] Preferably, each umbrella-shaped rectifier cap has a plurality of air holes evenly distributed on it for ventilation, with the convex portion of each umbrella-shaped rectifier cap facing the second sealing cap and the concave portion of each umbrella-shaped rectifier cap facing the first sealing cap.

[0019] Preferably, the three-stage separation unit further includes a second separation cylinder, which is fixedly installed on the second sealing cover. The second separation cylinder is connected to the interior of the first separation cylinder through the second sealing cover. The interior of the second separation cylinder is used to hold activated carbon particles or glass fiber filter elements. One end of the second separation cylinder is fixedly connected to the third connecting pipe, and the gas storage port is fixedly connected to the other end of the third connecting pipe. The third connecting pipe is connected to the interior of the gas storage tank and the second separation cylinder respectively.

[0020] The advantages of this invention compared to the prior art are:

[0021] (1) The present invention adopts a three-stage series oil-gas separation structure, which can be widely used in the transformation and upgrading of various oil-containing air compressors;

[0022] (2) The primary separation unit uses a filter array arranged based on the inverse Fibonacci sequence to simulate a natural flow system. When the oil-containing gas flows through, some oil droplets will be left behind. It has the characteristics of hierarchical rhythm and natural coordination of disturbance and convergence.

[0023] (3) The secondary separation unit uses multiple parachute-shaped fairing caps, which have good rectification and oil droplet capture characteristics through the axial staggered layout.

[0024] (4) The three-stage separation unit is filled with activated carbon particles or glass fiber filter to adsorb residual oil droplets in the gas, serving as the last guarantee for oil-gas separation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0027] Figure 3 This is a cross-sectional view of the air compression unit in the present invention. Figure 1 ;

[0028] Figure 4 This is a cross-sectional view of the air compression unit in the present invention. Figure 2 ;

[0029] Figure 5 This is a cross-sectional view of the structure of the primary separation unit in this invention;

[0030] Figure 6 This is a cross-sectional view of the secondary and tertiary separation units in this invention;

[0031] Figure 7 This is a schematic diagram showing the angular position distribution of the umbrella-shaped rectifier cap in this invention;

[0032] Figure 8 This is a schematic diagram of the component structure of the umbrella-shaped rectifier cap in this invention;

[0033] Figure 9 This is a schematic diagram of the curved surface structure of the umbrella-shaped rectifier cap in this invention.

[0034] In the diagram: 1. Air tank; 2. Air compression module; 3. Primary separation unit; 4. Secondary separation unit; 5. Tertiary separation unit; 6. Pressure gauge; 7. Air inlet; 8. Air supply valve; 9. Wheel; 10. Handle; 11. First connecting pipe; 12. Second connecting pipe; 13. Third connecting pipe; 201. Controller; 202. Motor; 203. First pulley; 204. Drive belt; 205. Second pulley; 206. Air compression unit; 207. Transmission box; 208. Filter; 209. First cover plate; 210. First guide plate; 211. First intake valve; 21 2. First exhaust valve; 213. First cylinder; 214. Median; 215. First piston; 216. First connecting rod; 217. Crankshaft; 218. Second cover plate; 219. Second guide plate; 220. Second intake valve; 221. Second exhaust valve; 222. Second cylinder; 223. Second piston; 224. Second connecting rod; 301. Separator tube; 302. Filter screen; 401. First sealing cap; 402. First separation cylinder; 403. Umbrella-shaped rectifier cap; 404. Second sealing cap; 405. Curved surface; 501. Second separation cylinder; 502. Activated carbon granules. Detailed Implementation

[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures, and should not be construed as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0036] Figures 1 to 9 This is a preferred embodiment of the present invention.

[0037] like Figure 1 and Figure 2As shown, a multi-stage oil-gas separation air compressor includes an air tank 1, an air compression module 2, a primary separation unit 3, a secondary separation unit 4, and a tertiary separation unit 5. The air tank 1 is equipped with a pressure gauge 6, an air inlet 7, and an air delivery valve 8. The tertiary separation unit 5 is filled with activated carbon particles 502 or a glass fiber filter. Four wheels 9 are installed at the bottom of the air tank 1. A handle 10 is fixedly installed on the air tank 1. The air compression module 2 is detachably and fixedly installed on the air tank 1. The primary separation unit 3 is detachably and fixedly installed on the air tank 1, with one end connected to the air compression module 2 via a first connecting pipe 11. The secondary separation unit 4 is detachably and fixedly installed on the air tank 1. One end of the separation unit 4 is connected to the other end of the first-stage separation unit 3 via a second connecting pipe 12. The third-stage separation unit 5 is detachably fixedly installed on the second-stage separation unit 4. One end of the third-stage separation unit 5 is connected to the other end of the second-stage separation unit 4, and the other end of the third-stage separation unit 5 is connected to the air storage port 7 via a third connecting pipe 13. The first-stage separation unit 3 contains ten filters 302 arranged based on the inverse Fibonacci sequence. The second-stage separation unit 4 contains three equidistantly distributed parachute-shaped rectifier caps 403. All the parachute-shaped rectifier caps 403 are coaxially arranged about the central axis of the second-stage separation unit 4. The rotation angles of any two adjacent parachute-shaped rectifier caps 403 about the central axis of the second-stage separation unit 4 are different. Figure 7 As shown, with Figure 7 The horizontal dotted line on the left is the reference line. The rotation angle of the bottom umbrella-shaped rectifier cap 403 is 0°, the rotation angle of the middle umbrella-shaped rectifier cap 403 is 40°, and the rotation angle of the top umbrella-shaped rectifier cap 403 is 80°. This arrangement ensures that the nine protruding parts on the three umbrella-shaped rectifier caps 403 are evenly distributed around the circumference at 40° intervals.

[0038] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the air compression module 2 includes a controller 201, a motor 202, a first pulley 203, a transmission belt 204, a second pulley 205, and an air compression unit 206. The motor 202 is detachably and fixedly mounted on the air tank 1. The controller 201 is fixedly mounted on the motor 202 and electrically connected to it. The first pulley 203 is fixedly mounted on the output shaft of the motor 202. The second pulley 205 is fixedly mounted on the power input end of the air compression unit 206. The transmission belt 204 is respectively fitted onto the first pulley 203 and the second pulley 205 on both sides. The air compression unit 206 is detachably and fixedly mounted on the air tank 1. The air compression unit 206 is an oil-impregnated air compression mechanism. In this embodiment, the air compression unit 206 adopts a two-stage tandem piston air compression mechanism. Specifically, the transmission box 207 is detachably fixedly mounted on the air tank 1. Both ends of the crankshaft 217 are hinged to the transmission box 207. The crankshaft 217 is the power input end of the air compression unit 206. The first connecting rod 216 and the second connecting rod 224 are respectively hinged to the crankshaft 217. The first piston 215 is hinged to the first connecting rod 216, and the second piston 223 is hinged to the second connecting rod 224. The first cylinder 213 and the second cylinder 222 are respectively fixedly mounted on the transmission box 207. The first piston 215 is slidably mounted on the first connecting rod 216. Inside cylinder 213, a second piston 223 is slidably mounted inside a second cylinder 222. A first guide plate 210 is fixedly mounted on the first cylinder 213. A first cover plate 209 is fixedly mounted on the first guide plate 210. A first intake valve 211 and a first exhaust valve 212 are respectively fixedly mounted inside the first guide plate 210, and both the first intake valve 211 and the first exhaust valve 212 communicate with the internal chamber of the first cylinder 213. A second guide plate 219 is fixedly mounted on the second cylinder 222. A second cover plate 218 is fixedly mounted on the second guide plate 219. A second intake valve 220 and a second exhaust valve 221 are respectively fixedly mounted inside the second guide plate 219. Both the air valve 220 and the second air outlet valve 221 are connected to the internal chamber of the second cylinder 222. The two ends of the median tube 214 are fixedly connected to the first guide plate 210 and the second guide plate 219, respectively. The two ends of the median tube 214 are connected to the first air outlet valve 212 and the second air inlet valve 220, respectively. The outer surface of the median tube 214 is provided with a plurality of equidistantly distributed heat dissipation fins. One end of the first connecting pipe 11 is fixedly installed on the second guide plate 219. The first connecting pipe 11 is connected to the second air outlet valve 221. The filter nozzle 208 is fixedly installed on the first guide plate 210. The filter nozzle 208 is connected to the first air inlet valve 211. The filter nozzle 208 is used to filter the air drawn in by the first air inlet valve 211.

[0039] like Figure 2As shown, the primary separation unit 3 also includes a separation pipe 301. The separation pipe 301 is bent into a U-shape and fixedly installed on the gas storage tank 1. One end of the separation pipe 301 is fixedly connected to the other end of the first connecting pipe 11, and the first connecting pipe 11 communicates with the interior of the separation pipe 301. Figure 5 As shown, ten filter screens 302 arranged according to the inverse Fibonacci sequence are fixedly installed inside the separation tube 301. The one-dimensional vector matrix formed by the inverse Fibonacci sequence is F. The expression for F is:

[0040] F=[1,1,2,3,5,8,13,21,34,55];

[0041] Let L1 be the axial distance from the first filter screen 302 to one end of the separation tube 301. i Filter 302 to the first i -1 filter screen 302 axial distance is L i F i The first element in a one-dimensional vector matrix F i Each element value, F j The first element in a one-dimensional vector matrix F j The element value, and the length of the separator 301 is L. * Then we have:

[0042] ;

[0043] Different filters 302 have different mesh counts, and the mesh count increases monotonically from the first filter 302 to the nth filter 302; in this embodiment, L * The parameter values ​​for 10 filters of 302 with a diameter of 1000mm are shown in Table 1.

[0044] Table 1 Filter Parameter Values

[0045]

[0046] like Figure 6 As shown, the secondary separation unit 4 also includes a first sealing cover 401, a first separation cylinder 402, and a second sealing cover 404. The first sealing cover 401 is fixedly installed at one end of the first separation cylinder 402, and the other end of the separation pipe 301 is fixedly connected to one end of the second connecting pipe 12. The first sealing cover 401 is also fixedly connected to the other end of the second connecting pipe 12, which communicates with the interiors of both the separation pipe 301 and the first separation cylinder 402. The second sealing cover 404 is fixedly installed at the other end of the first separation cylinder 402. The first separation cylinder 402 is detachably fixedly connected to the gas storage tank 1, and multiple parachute-shaped umbrella-shaped rectifier caps 403 are fixedly installed inside the first separation cylinder 402. Figure 8 and Figure 9As shown, the inner and outer surfaces of the umbrella-shaped rectifier cap 403 are similar, equidistant curved surfaces 405. The curved surfaces 405 are... 0 - xyz The parametric equations in a spatial rectangular coordinate system are:

[0047] ;

[0048] In the formula, υ Both u and u are parameters. x , y , z The units are all mm.

[0049] like Figure 7 and Figure 8 As shown, each umbrella-shaped rectifier cap 403 has multiple air holes evenly distributed on it for ventilation. The convex portion of each umbrella-shaped rectifier cap 403 faces the second sealing cap 404, and the concave portion of each umbrella-shaped rectifier cap 403 faces the first sealing cap 401.

[0050] like Figure 6 As shown, the three-stage separation unit 5 also includes a second separation cylinder 501, which is fixedly installed on the second sealing cover 404. The second separation cylinder 501 is connected to the interior of the first separation cylinder 402 through the second sealing cover 404. The interior of the second separation cylinder 501 is used to hold activated carbon particles 502 or glass fiber filter cartridges. One end of the second separation cylinder 501 is fixedly connected to the third connecting pipe 13. Figure 4 As shown, the gas storage port 7 is fixedly connected to the other end of the third connecting pipe 13, and the third connecting pipe 13 is connected to the interior of the gas storage tank 1 and the second separation cylinder 501 respectively.

[0051] Working principle of the invention:

[0052] In use, the controller 201 controls the motor 202 to output power, which is transmitted to the crankshaft 217 via the transmission belt 204. The crankshaft 217 drives the first connecting rod 216 and the second connecting rod 224 to move, which in turn drives the first piston 215 to move reciprocatingly in the first cylinder 213 and the second piston 223 to move reciprocatingly in the second cylinder 222. During the piston movement of the first piston 215, as... Figure 3 As shown, external air is drawn in through the filter 208, enters the first cylinder 213 via the first intake valve 211, and is then compressed and discharged into the median 214 via the first exhaust valve 212; during the movement of the second piston 223, as... Figure 4 As shown, compressed air is drawn in through the median 214, enters the second cylinder 222 via the second intake valve 220, and is then compressed and discharged into the first connecting pipe 11 via the second exhaust valve 221; as Figure 2 and Figure 5As shown, the compressed air entering the first connecting pipe 11 enters from one end of the separation pipe 301, passes through 10 filter screens 302 in sequence, and finally exits from the other end of the separation pipe 301 and enters the second connecting pipe 12. During the process of the compressed air entering the separation pipe 301, as shown in Table 1, the compressed air mixed with oil droplets goes through the coarse filtration stage, the transition stage, the intermediate filtration section, the focusing area, the particulate filtration section, the fine filtration section, and the final filtration section. In this process, the compressed air mixed with oil droplets collide with different filter screens 302, and impounds oil droplets of different masses layer by layer on the filter screens 302, thereby completing the first-stage oil-gas separation.

[0053] like Figure 2 and Figure 6 As shown, the compressed air entering the second connecting pipe 12, under pressure, further passes through the first sealing cover 401 and enters the first separating cylinder 402. Due to the special structure of the umbrella-shaped rectifier cap 403, some of the compressed air will generate a certain resistance during its upward movement, and a backflow will form inside the umbrella-shaped rectifier cap 403. During the backflow convection process, the collision contact time between the oil droplets and the inner surface of the umbrella-shaped rectifier cap 403 is increased, causing the oil droplets to remain on the inner surface of the umbrella-shaped rectifier cap 403 and slide down along the curved surface 405. At the same time, another... Some of the compressed air moves upward from the area between the umbrella-shaped rectifier cap 403 and the first separation cylinder 402. Due to the staggered arrangement of the three umbrella-shaped rectifier caps 403, the compressed air is guided to form a rotating and rising airflow along the inner wall of the first separation cylinder 402. This increases the collision contact time between the airflow and the inner wall of the first separation cylinder 402, and increases the turbulence of the airflow between the three umbrella-shaped rectifier caps 403. This causes oil droplets to remain on the inner wall surface of the first separation cylinder 402 and the surfaces of the multiple umbrella-shaped rectifier caps 403 and slide down, thereby completing the secondary oil-gas separation.

[0054] Specifically, the first sealing cover 401 is located inside the first separating cylinder 402 where compressed air is introduced, and its structure can be an inverted funnel shape. Figure 6 (Not shown in the text), so that the falling oil droplets collect in the area surrounded by the funnel-shaped structure, the first sealing cover 401 and the first separation cylinder 402. At this time, the newly introduced compressed air will not directly blow up the collected oil, which facilitates the subsequent recycling of the oil.

[0055] like Figure 2 and Figure 6 As shown, after compressed air flows from the first separator 402 into the second separator 501, the activated carbon particles 502 adsorb the last remaining oil droplets in the compressed air, thereby achieving three-stage oil-gas separation. Finally, the gas enters the gas storage tank 1 through the third connecting pipe 13 and the gas storage port 7.

[0056] like Figure 1As shown, pressure gauge 6 is used to measure the air pressure in air tank 1, air supply valve 8 is used to release high-pressure air to the outside, and handle 10 and wheels 9 facilitate the movement of the whole machine.

[0057] This invention is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort are within the protection scope of this invention.

Claims

1. A multi-stage oil-gas separation air compressor, comprising an air storage tank (1), an air compression module (2), a primary separation unit (3), a secondary separation unit (4), and a tertiary separation unit (5), characterized in that: The air storage tank (1) is equipped with a pressure gauge (6), an air storage port (7), and an air supply valve (8). The air compression module (2) is fixedly installed on the air storage tank (1). The first-stage separation unit (3) is fixedly installed on the air storage tank (1). One end of the first-stage separation unit (3) is connected to the air compression module (2) through the first connecting pipe (11). The second-stage separation unit (4) is fixedly installed on the air storage tank (1). One end of the second-stage separation unit (4) is connected to the other end of the first-stage separation unit (3) through the second connecting pipe (12). The third-stage separation unit (5) is fixedly installed on the second-stage separation unit (4). One end of the third-stage separation unit (5) is connected to the second-stage separation unit (3). (4) The other end is connected, and the other end of the third-stage separation unit (5) is connected to the gas storage port (7) through the third connecting pipe (13). The first-stage separation unit (3) is equipped with multiple filters (302) arranged based on the inverse Fibonacci sequence. The second-stage separation unit (4) is equipped with multiple equidistant umbrella-shaped rectifier caps (403) in the shape of parachutes. All umbrella-shaped rectifier caps (403) are arranged coaxially about the central axis of the second-stage separation unit (4). Any two adjacent umbrella-shaped rectifier caps (403) have different rotation angles about the central axis of the second-stage separation unit (4). The third-stage separation unit (5) is filled with activated carbon particles (502) or glass fiber filter.

2. The multi-stage oil-gas separation air compressor as described in claim 1, characterized in that: The bottom of the gas tank (1) is equipped with four wheels (9), and a handle (10) is fixedly installed on the gas tank (1).

3. A multi-stage oil-gas separation air compressor as described in claim 2, characterized in that: The air compression module (2) includes a controller (201), a motor (202), a first pulley (203), a transmission belt (204), a second pulley (205), and an air compression unit (206). The motor (202) is fixedly installed on the air tank (1), the controller (201) is fixedly installed on the motor (202), and the controller (201) is electrically connected to the motor (202). The first pulley (203) is fixedly installed on the output shaft of the motor (202), the second pulley (205) is fixedly installed on the power input end of the air compression unit (206), the two sides of the transmission belt (204) are respectively fitted on the first pulley (203) and the second pulley (205), and the air compression unit (206) is fixedly installed on the air tank (1).

4. A multi-stage oil-gas separation air compressor as described in claim 3, characterized in that: The air compression unit (206) adopts a two-stage tandem piston air compression mechanism, including a transmission box (207), a first cover plate (209), a first guide plate (210), a first intake valve (211), a first exhaust valve (212), a first cylinder (213), a median (214), a first piston (215), a first connecting rod (216), a crankshaft (217), a second cover plate (218), a second guide plate (219), a second intake valve (220), a second exhaust valve (221), a second cylinder (222), a second piston (223), and a second connecting rod (224). The transmission box (207) is fixedly installed. On the air tank (1), both ends of the crankshaft (217) are hinged to the transmission box (207). The crankshaft (217) is the power input end of the air compression unit (206). The first connecting rod (216) and the second connecting rod (224) are respectively hinged to the crankshaft (217). The first piston (215) is hinged to the first connecting rod (216), and the second piston (223) is hinged to the second connecting rod (224). The first cylinder (213) and the second cylinder (222) are respectively fixedly installed on the transmission box (207). The first piston (215) is slidably installed in the first cylinder (213), and the second piston (223) is slidably installed in the second cylinder (206). Inside the two cylinders (222), the first guide plate (210) is fixedly installed on the first cylinder (213), the first cover plate (209) is fixedly installed on the first guide plate (210), the first intake valve (211) and the first exhaust valve (212) are respectively fixedly installed inside the first guide plate (210), and both the first intake valve (211) and the first exhaust valve (212) are connected to the internal chamber of the first cylinder (213). The second guide plate (219) is fixedly installed on the second cylinder (222), the second cover plate (218) is fixedly installed on the second guide plate (219), and the second intake valve (220) and the second exhaust valve (221) are connected to the internal chamber of the first cylinder (213). The first air intake valve (220) and the second air outlet valve (221) are fixedly installed in the second guide plate (219). The second air intake valve (220) and the second air outlet valve (221) are both connected to the internal chamber of the second cylinder (222). The two ends of the median (214) are fixedly connected to the first guide plate (210) and the second guide plate (219) respectively. The two ends of the median (214) are connected to the first air outlet valve (212) and the second air intake valve (220) respectively. The outer surface of the median (214) is provided with multiple equidistant heat dissipation fins. One end of the first connecting pipe (11) is fixedly installed on the second guide plate (219). The first connecting pipe (11) is connected to the second air outlet valve (221).

5. A multi-stage oil-gas separation air compressor as described in claim 4, characterized in that: The air compression unit (206) also includes a filter (208), which is fixedly installed on the first guide plate (210). The filter (208) is connected to the first intake valve (211) and is used to filter the air drawn in by the first intake valve (211).

6. A multi-stage oil-gas separation air compressor as described in any one of claims 1-5, characterized in that: The primary separation unit (3) also includes a separation pipe (301), which is bent into a U-shape and fixedly installed on the gas storage tank (1). One end of the separation pipe (301) is fixedly connected to the other end of the first connecting pipe (11), and the first connecting pipe (11) is connected to the separation pipe (301). A certain component is fixedly installed inside the separation pipe (301). n A filter (302) based on the inverse Fibonacci sequence. n Let n be a positive integer, and 3 ≤ n ≤ 10. Let F be a one-dimensional vector matrix formed by the inverse Fibonacci sequence. Then, the expression for F is: F=[1，1，2，3，5，8，13，21，34，55]； Let L1 be the axial distance from the first filter screen (302) to one end of the separator tube (301). i The filter (302) to the first i -1 filter screen (302) axial distance is L i F i The first element in a one-dimensional vector matrix F is the... i Each element value, F j The first element in a one-dimensional vector matrix F is the... j The element value, the length of the separator (301) is L * Then we have: 。 7. A multi-stage oil-gas separation air compressor as described in claim 6, characterized in that: Different filters (302) have different mesh counts; the first filter (302) has a mesh count of [missing information]. n Each filter (302) exhibits a monotonically increasing mesh count.

8. A multi-stage oil-gas separation air compressor as described in claim 7, characterized in that: The secondary separation unit (4) also includes a first sealing cover (401), a first separation cylinder (402), and a second sealing cover (404). The first sealing cover (401) is fixedly installed at one end of the first separation cylinder (402). The other end of the separation pipe (301) is fixedly connected to one end of the second connecting pipe (12). The first sealing cover (401) is fixedly connected to the other end of the second connecting pipe (12). The second connecting pipe (12) communicates with the interior of the separation pipe (301) and the first separation cylinder (402) respectively. The second sealing cover (404) is fixedly installed at the other end of the first separation cylinder (402). The first separation cylinder (402) is fixedly connected to the gas storage tank (1). Multiple parachute-shaped umbrella-shaped rectifier caps (403) are fixedly installed inside the first separation cylinder (402). The inner and outer surfaces of the umbrella-shaped rectifier caps (403) are similar and equidistant morphological curved surfaces (405). The morphological curved surfaces (405) are in 0 - xyz The parametric equations in a spatial rectangular coordinate system are: ； In the formula, υ Both u and u are parameters. ε The disturbance coefficient is... R As the reference radius, c This is the top height coefficient. a This is the bottom depth coefficient. k This represents the disturbance coefficient.

9. A multi-stage oil-gas separation air compressor as described in claim 8, characterized in that: Each umbrella-shaped rectifier cap (403) has multiple air holes evenly distributed on it. The convex portion of each umbrella-shaped rectifier cap (403) faces the second sealing cap (404), and the concave portion of each umbrella-shaped rectifier cap (403) faces the first sealing cap (401).

10. A multi-stage oil-gas separation air compressor as described in claim 9, characterized in that: The three-stage separation unit (5) also includes a second separation cylinder (501), which is fixedly installed on the second sealing cover (404). The second separation cylinder (501) is connected to the inside of the first separation cylinder (402) through the second sealing cover (404). The inside of the second separation cylinder (501) is used to hold activated carbon particles (502) or glass fiber filter. One end of the second separation cylinder (501) is fixedly connected to the third connecting pipe (13), and the gas storage port (7) is fixedly connected to the other end of the third connecting pipe (13). The third connecting pipe (13) is connected to the gas storage tank (1) and the inside of the second separation cylinder (501) respectively.

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