Oxygen-enriched fresh air purification system

Abstract

The invention relates to the technical field of air purification equipment, in particular to an oxygen-enriched fresh air purification system which comprises an outer frame, one end of the outer frame is communicated with an air inlet window, the other end of the outer frame is communicated with an air outlet window, and the oxygen-enriched fresh air purification system is characterized by further comprising an air inlet fan and an air outlet fan, during working, outside air sequentially passes through the air inlet window, the air inlet fan, the air outlet fan and the air outlet window. And the oxygen enrichment mechanism comprises an oxygen generation assembly and an oxygen enrichment assembly. The oxygen enrichment mechanism is arranged, and cooperation of active oxygen production and passive oxygen enrichment is achieved through the double-flow-channel design of the main flow channel and the secondary flow channel; the main flow channel utilizes the nitrogen adsorption characteristic of an arc-shaped separation blade material and is combined with airflow to drive magnetic suspension separation blades to rotate, the temporary nitrogen storage effect is enhanced, the basic oxygen concentration is improved, meanwhile, oxygen and nitrogen are separated through the gradient magnetic field of a permanent magnet array ring and magnetized filaments and the difference of magnetic properties, and dual passive oxygen enrichment of material adsorption and magnetic separation is formed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air purification equipment, and in particular to an oxygen-enriched fresh air purification system. BACKGROUND

[0002] With the development of society, people spend more time indoors, and the outdoor air pollution problem is prominent, so that indoor air quality problems are increasingly concerned. Such as air purifiers, fresh air systems and other indoor air treatment equipment emerged as the times require. However, the main function of the existing fresh air system is to force the air flow between the inside and outside, and when the outdoor air quality is low, it cannot improve the indoor air through ventilation, and the main function of the air purifier is to remove particulate matter and some volatile organic compounds in the air. In the treatment process, it is easy to cause a low oxygen environment and affect the fresh air effect.

[0003] In the prior art, an oxygen-enriching machine and a fresh air machine work cooperatively through a control module to realize dynamic adjustment of the system and ensure the indoor air quality. In this way, the air treatment effect is poor, the active oxygen production and passive oxygen enrichment cannot be cooperated, the fresh air effect is reduced, and the energy consumption is increased. In this way, the exhaust device, the fresh air purification device, the oxygen production device and the heat exchange core are arranged on the frame body, and the mixed high-concentration oxygen and purified fresh air are sent into the room to solve the problem of indoor hypoxia. In this way, there is a lack of airflow optimization design, and the oxygen-enriched air cannot be uniformly and smoothly output, which easily produces noise interference to the indoor environment. SUMMARY

[0004] The purpose of the present application is to solve the problems of poor air treatment effect, inability to realize the cooperation of active oxygen production and passive oxygen enrichment, reduced fresh air effect and increased energy consumption in the prior art, and to provide an oxygen-enriched fresh air purification system.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0006] An oxygen-enriched fresh air purification system comprises an outer frame, one end of the outer frame is communicated with an air inlet window, the other end is communicated with an air outlet window, and further comprises:

[0007] An air inlet fan and an air outlet fan are installed in the inner part of the outer frame, and when working, the air outside is sequentially passed through the air inlet window, the air inlet fan, the air outlet fan and the air outlet window;

[0008] The oxygen-enriching mechanism comprises an oxygen generator and an oxygen-enriching assembly, an installation top plate is fixedly connected to the top of an outer frame, two air deflectors are connected to the bottom of the installation top plate, the outer frame is divided into a main flow channel and a secondary flow channel by the two air deflectors, the oxygen generator is connected to the secondary flow channel and the main flow channel, the oxygen-enriching assembly is connected to the inside of the main flow channel and comprises a separation drum and a fixed frame which are connected to the bottom of the oxygen generator, the separation drum comprises a plurality of rotatable separation blades, a plurality of UV lamp tubes and a permanent magnet array ring are arranged in the center of the separation drum, and the fixed frame is installed with the plurality of UV lamp tubes and the permanent magnet array ring.

[0009] Preferably, the oxygen generator comprises two filter devices which are fixedly connected to the bottom of the installation top plate, the separation drum and the fixed frame are fixedly connected to the bottom of the filter devices, the filter devices are connected to the secondary flow channel and the oxygen generator, the oxygen generator is installed between the two filter devices, the oxygen generator is connected to the main flow channel, an oxygen content detector and a control valve are installed on the outlet of the oxygen generator, the oxygen content detector and the valve are electrically connected to a controller, the controller is installed on the outer frame, and the controller receives signals from the oxygen content detector to control the opening and closing of the valve.

[0010] Preferably, the top ends of the two air deflectors are fixedly connected to the bottom of the two filter devices, the bottom ends are inclined towards the center of the outer frame, a dust collection coil is arranged above the two air deflectors, and the dust collection coil is electrically connected to an external power supply.

[0011] Preferably, the oxygen-enriching assembly comprises two separation drums which are in one-to-one correspondence with the two filter devices, the separation drum comprises a plurality of fixed rings, the inner side of the fixed ring is fixedly connected to the plurality of separation blades, and the outer side of the fixed ring is installed with a magnetic suspension bearing, the fixed ring is made of a permanent magnet, the fixed ring is rotatably suspended in the magnetic suspension bearing, a fixed block is fixedly connected to the top of the magnetic suspension bearing, and the plurality of fixed blocks are fixedly connected to the bottom of the filter device.

[0012] Preferably, the separation blades are made of a nitrogen-oxygen separation material, the plurality of separation blades are arc-shaped and arranged in a circular array on the inner side of the fixed ring.

[0013] Preferably, the oxygen-enriching assembly comprises two fixed frames which are in one-to-one correspondence with the two separation drums, the fixed frame comprises two fixed frames which are fixedly connected to the bottom of the filter device, the plurality of UV lamp tubes and the permanent magnet array ring are alternately and sequentially connected, and the whole is installed between the two fixed frames, a plurality of separation cavities are arranged in the permanent magnet array ring and connected to the inside of the outer frame, and a plurality of magnetized filaments are fixedly connected in the separation cavities.

[0014] Preferably, the oxygen-enriching mechanism further comprises a flow equalizing mechanism which is arranged between the outlet fan and the outlet window, the flow equalizing mechanism comprises an air inlet frame, the air inlet frame is connected to the outlet fan, and a gourd-shaped part is connected to the air inlet frame.

[0015] Preferably, the gourd piece comprises a large circular frame and a small circular frame which are communicated with each other, the end of the large circular frame away from the small circular frame is communicated with the air inlet frame, a vertical hole plate is fixedly connected in the inside of the large circular frame, a plurality of vertical holes are penetrated and formed in the vertical hole plate, an arc hole plate is fixedly connected in the inside of the small circular frame, and a plurality of arc holes are penetrated and formed in the arc hole plate.

[0016] Preferably, a fixed shaft is fixedly connected on the vertical hole plate, one end of the fixed shaft extends into the large circular frame and the small circular frame, and an impeller is rotatably connected to the fixed shaft.

[0017] Preferably, two sound attenuation pieces are fixedly connected in the inside of the large circular frame, the two sound attenuation pieces are symmetrically distributed at two ends of the vertical hole plate, the sound attenuation piece comprises a first baffle and a second baffle which are fixedly connected in the inside of the large circular frame, the first baffle and the second baffle form a closed space with the inner wall of the large circular frame, a plurality of necks are penetrated and formed in the first baffle and the second baffle, and the necks communicate the internal airflow channel of the large circular frame with the closed space.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] 1、The present application sets up oxygen enrichment mechanism, through the double flow channel design of main flow channel and secondary flow channel, realizes the synergy of active oxygen production and passive oxygen enrichment; the main flow channel uses the nitrogen adsorption characteristics of the arc-shaped separation blade material, combines with the airflow-driven magnetic suspension of the separation blade rotation, strengthens the temporary storage effect of nitrogen, improves the basic oxygen concentration, at the same time, through the gradient magnetic field of the permanent magnet array ring and the magnetized fine wire, separates oxygen and nitrogen through the difference in magnetic properties, forms the double passive oxygen enrichment of material adsorption and magnetic separation, without additional energy consumption, can improve the oxygen concentration; after the secondary flow channel passes through the electrostatic precipitation of the dust collection coil and the purification of the filter device, high-concentration oxygen is generated in the oxygen generator, the flow of high-concentration oxygen is intelligently adjusted, and the air mixed with the main flow channel air obtains air with target oxygen concentration; both passive oxygen enrichment and active oxygen production can reduce the energy consumption of active oxygen production, and through active supplementation, the oxygen concentration is stable, solving the problems of low efficiency of single passive oxygen enrichment and high energy consumption of single active oxygen production.

[0020] 2、The present application sets up oxygen enrichment assembly, through ultraviolet disinfection, magnetic field separation and material adsorption, forms multi-field synergy, improves oxygen enrichment efficiency and strengthens purification effect; through the UV lamp tube and the rotating separation blade, the ultraviolet light cooperates with the airflow flow to achieve more thorough sterilization; through the permanent magnet array ring, the difference in magnetic properties of oxygen and nitrogen is utilized to realize oxygen-nitrogen separation in the gradient magnetic field, and the magnetized fine wire generates a local strong magnetic field, increases the oxygen adsorption site, cooperates with the rotation of the separation blade to prolong the air flow time, and improves the effect of magnetic field separation of oxygen and nitrogen.

[0021] 3. The application sets the flow equalizing mechanism, through the large circle frame, small circle frame, vertical hole plate, arc hole plate, divides the airflow, breaks the vortex and mixes the flow, cooperates with the impeller rotation to let out the air softer, eliminates the impact noise of high-speed airflow, and forms a Helmholtz resonator through the double baffle and the neck, absorbs specific frequency noise, further reduces noise; through the low resistance rotation of the magnetic suspension bearing, the friction resistance is greatly reduced; through the arc separation leaf, the airflow is guided to be laminar wall flow, reducing turbulent noise; while enriching oxygen, reducing noise. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The overall isometric view of the oxygen-enriched fresh air purification system proposed in the application.

[0023] Figure 2 The external frame internal structure diagram of the oxygen-enriched fresh air purification system proposed in the application.

[0024] Figure 3 The partial oxygen production assembly diagram of the oxygen-enriched fresh air purification system proposed in the application.

[0025] Figure 4 The separation drum and air deflector cooperation diagram of the oxygen-enriched fresh air purification system proposed in the application.

[0026] Figure 5 The partial separation drum, UV lamp tube and permanent magnet array ring cooperation diagram of the oxygen-enriched fresh air purification system proposed in the application.

[0027] Figure 6 The flow equalizing mechanism diagram of the oxygen-enriched fresh air purification system proposed in the application.

[0028] Figure 7 The internal diagram of the gourd piece of the oxygen-enriched fresh air purification system proposed in the application.

[0029] Figure 8 The cross-sectional view of the permanent magnet array ring of the oxygen-enriched fresh air purification system proposed in the application.

[0030] In the figure: 1, external frame; 2, air inlet window; 3, air outlet window; 4, air inlet fan; 5, air outlet fan; 6, installation top plate; 7, filter device; 8, air deflector; 9, dust collection coil; 10, fixed frame; 11, UV lamp tube; 12, permanent magnet array ring; 13, separation leaf; 14, fixed ring; 15, magnetic suspension bearing; 16, fixed block; 17, oxygen generator; 18, air inlet frame; 19, fixed shaft; 20, impeller; 21, large circle frame; 22, small circle frame; 23, vertical hole plate; 24, arc hole plate; 25, first baffle; 26, second baffle; 27, neck; 28, separation cavity; 29, magnetized fine wire. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Reference Figure 1 and Figure 2 An oxygen-enriched fresh air purification system includes an outer frame 1, one end of the outer frame 1 is connected to an air inlet window 2, and the other end is connected to an air outlet window 3, and further includes:

[0033] The inlet fan 4 and the outlet fan 5 are both installed inside the outer frame 1. When working, the outside air passes through the air inlet window 2, the inlet fan 4, the outlet fan 5 and the air outlet window 3 in sequence.

[0034] Reference Figures 3-5 and Figure 8 , oxygen enrichment mechanism, the oxygen enrichment mechanism includes an oxygen production component and an oxygen enrichment component, the top of the outer frame 1 is fixedly connected to a mounting top plate 6, and the bottom of the mounting top plate 6 is connected to two air guide plates 8. The two air guide plates 8 divide the interior of the outer frame 1 between the inlet fan 4 and the outlet fan 5 into a main flow channel and a secondary flow channel. The air inlet end of the oxygen production component is connected to the secondary flow channel, and the air outlet end is connected to the main flow channel. The oxygen enrichment component is connected to the inside of the main flow channel and includes a separation drum and a fixed frame connected to the bottom of the oxygen production component. The separation drum includes a plurality of rotatable separation blades 13, and the fixed frame is equipped with a plurality of UV lamps 11 and a permanent magnet array ring 12 located in the center of the separation drum.

[0035] The oxygen production assembly includes two filter devices 7 fixedly connected to the bottom of the mounting top plate 6, the separation drum and the fixing frame are fixedly connected to the bottom of the filter device 7, the air inlet end of the filter device 7 is connected to the secondary flow channel, and the air outlet end is connected to the oxygen generator 17. The oxygen generator 17 is installed between the two filter devices 7, and its air outlet end is connected to the main flow channel. An oxygen content detector and a control valve are installed on the air outlet end of the oxygen generator 17. The oxygen content detector and the valve are electrically connected to a controller, which is installed on the outer frame 1. The controller receives the signal from the oxygen content detector to control the opening and closing of the valve.

[0036] The filter device 7 and the oxygen generator 17 both adopt existing technologies. The filter device 7 adopts a structure with built-in activated carbon for filtering and disinfecting the incoming air.

[0037] The oxygen generator 17 uses a pressure swing adsorption oxygen generator to process nitrogen and oxygen in the air, discharge nitrogen-rich air, and obtain air with a higher oxygen concentration, thereby forming an active oxygen production effect.

[0038] The top ends of the two air deflectors 8 are fixedly connected to the bottom of the two filter devices 7, respectively, and are inclined towards the center of the outer frame 1, and a dust collection coil 9 is arranged above the two air deflectors 8, and the dust collection coil 9 is electrically connected with an external power supply.

[0039] The dust collection coil 9 adopts the prior art, is powered by the external power supply, and forms electrostatic adsorption on the dust in the air to complete the preliminary dust removal effect. In the process of long-term use, the staff regularly clean it.

[0040] The oxygen enrichment assembly includes two separation rollers, the two separation rollers correspond to the two filter devices 7, respectively, the separation roller includes a plurality of fixed rings 14, the inner side of the fixed ring 14 is fixedly connected with a plurality of separation leaves 13, and the outer side is provided with a magnetic suspension bearing 15, the fixed ring 14 is made of a permanent magnet, the fixed ring 14 is rotatably suspended in the magnetic suspension bearing 15, the top of the magnetic suspension bearing 15 is fixedly connected with a fixed block 16, and the plurality of fixed blocks 16 are fixedly connected to the bottom of the filter device 7.

[0041] The magnetic suspension bearing 15 adopts the prior art, which is used for reducing the rotation resistance of the fixed ring 14, and facilitating the rotation of the fixed ring 14 driven by the external force.

[0042] The separation leaf 13 is made of nitrogen-oxygen separation material, and the plurality of separation leaves 13 are arc-shaped and arranged in a circular array on the inner side of the fixed ring 14.

[0043] The nitrogen-oxygen separation material such as carbon molecular sieve and specific MOFs (metal organic framework material) can absorb and temporarily store nitrogen, form a passive effect of improving oxygen concentration, and the staff regularly processes and replaces the separation leaf 13 or the entire separation roller to ensure the function of absorbing and temporarily storing nitrogen.

[0044] The oxygen enrichment assembly includes two fixed frames, the two fixed frames correspond to the two separation rollers, respectively, the fixed frame includes two fixed frames 10 fixedly connected to the bottom of the filter device 7, a plurality of UV lamp tubes 11 and permanent magnet array rings 12 are alternately and sequentially connected, and are integrally arranged between the two fixed frames 10, a plurality of separation cavities 28 are formed in the permanent magnet array ring 12 and are in communication with the inside of the outer frame 1, and a plurality of magnetized filaments 29 are fixedly connected in the separation cavities 28.

[0045] The UV lamp tube 11 and the permanent magnet array ring 12 adopt the prior art, the UV lamp tube 11 irradiates by ultraviolet rays to sterilize and disinfect the air near the separation leaf 13, and purifies the air; the permanent magnet array ring 12 generates a gradient magnetic field to the outside, so that oxygen and nitrogen are separated due to different magnetic properties, the separation effect of oxygen and nitrogen is improved, and the oxygen enrichment rate is accelerated.

[0046] Referring to Figure 2 , Figure 6 and Figure 7It also comprises a flow equalizing mechanism between the air outlet fan 5 and the air outlet window 3, the flow equalizing mechanism comprising an air inlet frame 18, the air inlet end of the air inlet frame 18 being directed towards the air outlet fan 5, and the air outlet end being communicated with a gourd piece, the air outlet end of the gourd piece being directed towards the air outlet window 3.

[0047] The gourd piece comprises a large circular frame 21 and a small circular frame 22 which are communicated with each other, the end of the large circular frame 21 away from the small circular frame 22 being communicated with the air inlet frame 18, and the inside of the large circular frame 21 being fixedly connected with a vertical hole plate 23, a plurality of vertical holes being through-provided on the vertical hole plate 23, and the inside of the small circular frame 22 being fixedly connected with an arc hole plate 24, a plurality of arc holes being through-provided on the arc hole plate 24.

[0048] The vertical hole plate 23 is fixedly connected with a fixed shaft 19, one end of the fixed shaft 19 extending into the large circular frame 21 and the small circular frame 22 and being rotatably connected with an impeller 20.

[0049] The inside of the large circular frame 21 is fixedly connected with two sound absorbing pieces, the two sound absorbing pieces being symmetrically distributed at the two ends of the vertical hole plate 23, the sound absorbing piece comprising a first baffle 25 and a second baffle 26 which are fixedly connected in the inside of the large circular frame 21, a closed space being formed between the first baffle 25, the second baffle 26 and the inner wall of the large circular frame 21, and a plurality of necks 27 being through-provided on the first baffle 25 and the second baffle 26, the necks 27 communicating the internal airflow channel of the large circular frame 21 with the closed space.

[0050] When the air inlet fan 4 is opened, the air inlet fan 4 sends the air outside to the inside of the outer frame 1 through the air inlet window 2, the air inlet window 2 performs preliminary filtration on the air, most of the airflow entering the outer frame 1 blows through the middle of the two separation drums, and a small part of the airflow enters above the two air deflectors 8.

[0051] When the airflow enters between the two separation drums, the airflow speed is fast at the middle position and slow at other positions, due to the Bernoulli principle, the separation blades 13 are subjected to the radial airflow pushing action, and the plurality of separation blades 13 drive the fixed ring 14 to rotate on the magnetic suspension bearing 15.

[0052] Since the shape of the separation blade 13 is arc-shaped and is composed of nitrogen-oxygen separation material, when the separation blade 13 drives the separation drum to rotate, the efficiency of the airflow entering the inside of the separation drum is strengthened, the separation blade 13 absorbs part of the nitrogen in the air and temporarily stores it, thereby increasing the oxygen concentration near the separation blade 13 and improving the oxygen concentration of the air inside the main flow channel.

[0053] The middle of the separation drum is also provided with a UV lamp tube 11 and a permanent magnet array ring 12, the UV lamp tube 11 performs dynamic irradiation without dead angle on the central airflow when working, thereby strengthening the sterilization and disinfection effect.

[0054] The permanent magnet array ring 12 works to generate a gradient strong magnetic field, and the oxygen of the paramagnetic substance is attracted to the area with higher magnetic field strength, and the nitrogen of the diamagnetic substance is weakly repelled; the surface of the magnetized filament 29 placed in the magnetic field area inside the separation cavity 28 generates a stronger local magnetic field, increases the surface area, increases the oxygen adsorption site, further improves the separation efficiency of the oxygen and nitrogen, and increases the concentration of the oxygen in the central area.

[0055] The arc-shaped separation blade 13 guides the airflow to flow in a laminar flow along the wall, which reduces vortex noise and reduces the overall noise of the equipment compared with a straight blade.

[0056] The airflow entering above the two air deflectors 8 first passes through the middle dust collection coil 9, which forms electrostatic adsorption of small dust in the air by external power supply; the airflow after electrostatic dust removal enters the two filter devices 7, which filter and disinfect the air; finally, the airflow enters the oxygen generator 17, which works to generate gas with high oxygen concentration at the gas outlet end, and an oxygen content detector detects the oxygen concentration of the air about to be discharged. According to the set oxygen concentration, the valve is controlled to open and close to introduce a corresponding proportion of high-oxygen-concentration gas into the main flow channel, mix with the air in the main flow channel with a certain oxygen concentration, and reach the required oxygen concentration to form oxygen-enriched air with an oxygen concentration of 35%.

[0057] The oxygen-enriched air enters the air inlet frame 18 and enters the air outlet fan 5, which works to accelerate according to the set exhaust speed. The airflow from the air outlet fan 5 first enters the large circular frame 21, passes through the vertical hole plate 23 in the middle of the large circular frame 21, and the vertical hole plate 23 is a porous flow uniform structure. The airflow is divided into multiple streams through multiple vertical holes to reduce the turbulence intensity of the airflow and avoid stratification of the oxygen concentration.

[0058] The airflow further rotates the impeller 20 at the front end of the fixed shaft 19, which further mixes the oxygen-enriched air and makes the discharged airflow more soft and multi-directionally dispersed.

[0059] After passing through the impeller 20, the airflow enters the small circular frame 22 and then passes through the arc hole plate 24 in the small circular frame 22. The arc hole plate 24 breaks the large-scale vortex into micro-vortex through the arc hole in the middle, making the discharged airflow more soft and multi-directionally dispersed.

[0060] The large circular frame 21 and the small circular frame 22 form a gourd piece, which is similar in shape to a gourd. The large circular frame 21 serves as a pressure stabilizing cavity to eliminate turbulence of the airflow and make the airflow more uniform. The small circular frame 22 cooperates with the impeller 20 and the arc hole plate 24 in the middle to make the airflow more soft and avoid discomfort when directly blowing. At the same time, the large circular frame 21 acts as an expansion-type silencer to attenuate low-frequency noise, and the small circular frame 22 further absorbs noise to form a more uniform, stable, and quiet outlet airflow.

[0061] The two sides of the large circular frame 21 are provided with arc-shaped first baffle 25 and second baffle 26, and the neck 27 is arranged on the baffle, the first baffle 25 and the second baffle 26 form a closed cavity with the inner wall of the large circular frame 21, and the neck 27 constitutes a sound mass element, and the anti-phase sound waves are generated to offset the airflow noise, when the air flows through the neck 27 of the resonance cavity, the friction occurs between the air and the wall of the neck 27, when the sound wave passes, the air in the neck 27 reciprocates in the cavity under the action of sound pressure, and due to the existence of frictional damping, the sound energy is converted into other forms of energy; when the frequency of the sound wave is equal to the natural frequency of the system, the air in the cavity resonates, overcomes the friction resistance to do work, consumes a large amount of sound energy, and thus reduces the noise.

[0062] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art, according to the technical solution and the inventive concept of the present application, within the technical range disclosed by the present application, makes equivalent replacement or change, should be covered in the protection scope of the present application.

Claims

1. An oxygen-enriched fresh air purification system, comprising an outer frame (1), one end of the outer frame (1) being connected to an air inlet window (2) and the other end being connected to an air outlet window (3), characterized in that: Also includes: The inlet fan (4) and the outlet fan (5) are both installed inside the outer frame (1), and when in operation, allow the outside air to pass through the air inlet window (2), the inlet fan (4), the outlet fan (5) and the air outlet window (3) in sequence; The oxygen enrichment mechanism comprises an oxygen production component and an oxygen enrichment component. A mounting top plate (6) is fixedly connected to the top of the outer frame (1). Two air guide plates (8) are connected to the bottom of the mounting top plate (6). The two air guide plates (8) divide the interior of the outer frame (1) between the inlet fan (4) and the outlet fan (5) into a main flow channel and a secondary flow channel. The air inlet end of the oxygen production component is connected to the secondary flow channel, and the air outlet end is connected to the main flow channel. The oxygen enrichment component is connected to the interior of the main flow channel and comprises a separation drum and a fixed frame connected to the bottom of the oxygen production component. The separation drum comprises a plurality of rotatable separation blades (13). The fixed frame is equipped with a plurality of UV lamps (11) and a permanent magnet array ring (12) located in the center of the separation drum.

2. The oxygen-enriched fresh air purification system according to claim 1, characterized in that: The oxygen production assembly comprises two filter devices (7) fixedly connected to the bottom of the mounting top plate (6), a separation drum and a fixing frame are fixedly connected to the bottom of the filter device (7), an air inlet end of the filter device (7) is connected to the secondary flow channel, and an air outlet end of the filter device (7) is connected to an oxygen generator (17), the oxygen generator (17) is installed between the two filter devices (7), and its air outlet end is connected to the main flow channel, an oxygen content detector and a control valve are installed on the air outlet end of the oxygen generator (17), the oxygen content detector and the valve are both electrically connected to a controller, the controller is installed on the outer frame (1), and the controller receives a signal from the oxygen content detector to control the opening and closing of the valve.

3. The oxygen-enriched fresh air purification system according to claim 2, characterized in that: The top ends of the two air guide plates (8) are fixedly connected to the bottom ends of the two filter devices (7) in a one-to-one correspondence, and the bottom ends are inclined toward the center of the outer frame (1). A dust collecting coil (9) is provided above the two air guide plates (8), and the dust collecting coil (9) is electrically connected to an external power supply.

4. The oxygen-enriched fresh air purification system according to claim 2, characterized in that: The oxygen enrichment component includes two separation drums, which correspond to two filter devices (7) on a one-to-one basis. The separation drums include multiple fixed rings (14). The inner side of the fixed ring (14) is fixedly connected to multiple separation leaves (13), and the outer side is equipped with a magnetic suspension bearing (15). The fixed ring (14) is made of a permanent magnet. The fixed ring (14) is rotatably magnetically suspended inside the magnetic suspension bearing (15). A fixed block (16) is fixedly connected to the top of the magnetic suspension bearing (15). The multiple fixed blocks (16) are all fixedly connected to the bottom of the filter device (7).

5. The oxygen-enriched fresh air purification system according to claim 4, characterized in that: The separation leaves (13) are made of nitrogen and oxygen separation material, and the plurality of separation leaves (13) are all arc-shaped and distributed in a circular array on the inner side of the fixing ring (14).

6. The oxygen-enriched fresh air purification system according to claim 4, characterized in that: The oxygen enrichment component includes two fixing frames, which correspond to two separation rollers one by one. The fixing frames include two fixing frames (10) fixedly connected to the bottom of the filter device (7). A plurality of UV lamp tubes (11) and permanent magnet array rings (12) are alternately engaged and matched in sequence, and the whole is installed between the two fixing frames (10). The permanent magnet array rings (12) are provided with a plurality of separation chambers (28) connected to the interior of the outer frame (1). A plurality of magnetized filaments (29) are fixedly connected inside the separation chambers (28).

7. The oxygen-enriched fresh air purification system according to claim 1, characterized in that: It also includes a flow balancing mechanism located between the outlet fan (5) and the outlet window (3), the flow balancing mechanism including an air inlet frame (18), the air inlet end of the air inlet frame (18) facing the outlet fan (5), the air outlet end being connected to a gourd member, and the air outlet end of the gourd member facing the outlet window (3).

8. The oxygen-enriched fresh air purification system according to claim 7, characterized in that: The gourd member comprises a large circular frame (21) and a small circular frame (22) which are interconnected. One end of the large circular frame (21) away from the small circular frame (22) is connected to the air inlet frame (18). A vertical hole plate (23) is fixedly connected inside the large circular frame (21). A plurality of vertical holes are formed on the vertical hole plate (23). An arc hole plate (24) is fixedly connected inside the small circular frame (22). A plurality of arc holes are formed on the arc hole plate (24).

9. The oxygen-enriched fresh air purification system according to claim 8, characterized in that: A fixed shaft (19) is fixedly connected to the vertical hole plate (23), one end of the fixed shaft (19) extends between the large circular frame (21) and the small circular frame (22), and is rotatably connected to the impeller (20).

10. The oxygen-enriched fresh air purification system according to claim 9, characterized in that: Two silencers are fixedly connected to the interior of the large circular frame (21), and the two silencers are symmetrically distributed at both ends of the vertical hole plate (23). The silencers include a first baffle (25) and a second baffle (26) fixedly connected to the interior of the large circular frame (21). A closed space is formed between the first baffle (25), the second baffle (26) and the inner wall of the large circular frame (21). A plurality of neck openings (27) are formed through the first baffle (25) and the second baffle (26), and the neck openings (27) communicate with the internal air flow channel of the large circular frame (21) and the closed space.

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