Self-cleaning energy-saving fresh air system

Abstract

The application relates to the technical field of ventilation systems, in particular to a self-purification energy-saving fresh air system, which comprises a fresh air pipeline fixedly penetrating a building main body, both ends of the fresh air pipeline are provided with blocking devices, the inner wall of the fresh air pipeline is sequentially provided, from outside to inside, with a pretreatment device, a primary air filter device, an electronic air purification device, a medium-efficiency air filter device, a high-efficiency air filter device, a temperature and humidity adjusting device and an air sterilization device, and an air exhaust device is arranged between the medium-efficiency air filter device and the high-efficiency air filter device. The application can replace indoor polluted air with relatively clean outdoor air, provide more oxygen supply for indoor personnel, and improve the indoor environmental comfort.

Description

Technical Field

[0001] This application relates to the field of ventilation system technology, and in particular to a self-purifying energy-saving fresh air system. Background Technology

[0002] The rapid development of modern society and economy is often accompanied by rapid energy consumption, which leads to negative impacts on people's living environment.

[0003] For example, vehicle exhaust, industrial waste gas, road dust, construction dust, and heating system exhaust can all generate large amounts of suspended particulate matter, leading to smog. During smoggy weather, polluted outdoor air enters indoors through doors and windows, causing a decline in indoor air quality and impacting human health and comfort. To minimize the entry of polluted outdoor air during smoggy weather, people often keep doors and windows tightly closed. However, this results in poor air circulation, causing indoor carbon dioxide concentrations to rise and oxygen levels to drop, similarly affecting human health and comfort.

[0004] Therefore, in smoggy weather with doors and windows closed, using relatively clean outdoor air to replace polluted indoor air and provide more oxygen to people indoors to improve indoor comfort is one of the challenges faced by the rapid development of modern society and economy. Summary of the Invention

[0005] To improve indoor environmental comfort, this application provides a self-purifying energy-saving fresh air system.

[0006] The above-mentioned objective of this application is achieved through the following technical solution:

[0007] A self-purifying energy-saving fresh air system includes a fresh air duct that is fixedly connected through the main body of a building. Both the inner and outer ends of the fresh air duct are equipped with baffles. The inner wall of the fresh air duct is provided with a pretreatment device, a primary air filter, an electronic air purifier, a medium-efficiency air filter, a high-efficiency air filter, a temperature and humidity control device, and an air sterilization device in sequence from the outside to the inside. An exhaust device is provided between the medium-efficiency air filter and the high-efficiency air filter.

[0008] By adopting the above technical solution, when the doors and windows are closed during smoggy weather, the fresh air duct forms an airflow from the outside to the inside when the ventilation device is activated. The air from the outside environment passes through the pretreatment device, the primary air filter, the electronic air purifier, the medium-efficiency air filter, the high-efficiency air filter, the temperature and humidity control device, and the air sterilization device in sequence, which purifies, regulates the temperature and humidity, and sterilizes the air. The relatively clean outdoor air replaces the polluted indoor air, providing more oxygen supply for the people indoors, thereby improving the comfort of the indoor environment.

[0009] Optionally, the pretreatment device includes a pretreatment tank, two partitions, a rotating shaft, and multiple first fan blades. The pretreatment tank is fixed to the inner wall of the fresh air duct. Both partitions are provided with water exchange holes and are fixed to the inner wall of the pretreatment tank, so that the inner cavity of the pretreatment tank is divided into a water storage chamber, a dissolving chamber, and a wastewater chamber arranged sequentially from top to bottom. The two ends of the rotating shaft are respectively rotatably mounted on the two partitions, and the multiple first fan blades are evenly fixed to the outer periphery of the rotating shaft. One side of the pretreatment tank is provided with an air inlet pipe that communicates with the bottom of the dissolving chamber and is tangent to the inner wall of the pretreatment tank, and the other side is provided with an air outlet pipe that communicates with the top of the dissolving chamber.

[0010] By adopting the above technical solution, an external dissolving solution is introduced into the water storage chamber, allowing it to flow sequentially through the water storage chamber, dissolving chamber, and wastewater chamber. By controlling the introduction speed of the external dissolving solution, a certain amount of dissolving solution is maintained in the water storage chamber and dissolving chamber. That is, the external dissolving solution can be quickly replenished to the water storage chamber, but due to the relatively low flow rate at the water exchange hole, a certain amount of dissolving solution accumulates in the water storage chamber and dissolving chamber. At this time, the exhaust device is activated, creating an airflow from the outside to the inside through the fresh air duct. Air enters tangentially from the air inlet duct to the bottom of the dissolving chamber and comes into contact with the dissolving solution accumulated at the bottom. This dissolves larger dust particles in the air into the dissolving solution, achieving a pretreatment effect. During this process, because the air enters tangentially from the air inlet duct to the bottom of the dissolving chamber, it can create a water vortex in the dissolving solution accumulated at the bottom of the dissolving chamber, driving the first fan blade to rotate. This prevents the dust particles dissolved in the dissolving solution from accumulating at the bottom of the dissolving chamber and becoming difficult to clean.

[0011] Optionally, each of the partitions is provided with a water exchange assembly for controlling the opening and closing of the water exchange hole. The water exchange assembly includes a cover plate, a hinge shaft, and a vertical rod. One side of the cover plate is fixed to the hinge shaft, and both ends of the hinge shaft are hinged to the bottom surface of the partition through preset hinge seats. A return spring is provided between the hinge shaft and the hinge seats so that the cover plate always tends to cover the water exchange hole. The top of the vertical rod is fixed to the hinge shaft, and a horizontal bar is fixed on the outer periphery of the rotating shaft and arranged to intersect and overlap with the bottom end of the vertical rod.

[0012] By adopting the above technical solution, the self-purifying energy-saving fresh air system can first make a simple judgment on the outdoor air quality during operation. When the outdoor air quality is poor, the power of the exhaust device can be increased. The greater the power of the exhaust device, the greater the wind speed in the air inlet and outlet pipes, the greater the water flow vortex speed, the greater the rotation speed of the rotating shaft and crossbar, the more times the crossbar and vertical bar contact each other per unit time, the more times the cover plate is opened and closed per unit time, the faster the flow rate of the dissolving liquid, and the better the dissolution effect of dust particles. Conversely, when the outdoor air quality is relatively good, the power of the exhaust device can be reduced, the flow rate of the dissolving liquid can be slowed down, and the dissolution liquid can be saved while meeting the pretreatment requirements of dust particles, thus saving energy.

[0013] Optionally, an extension shaft is fixedly provided at the top of the rotating shaft, and a plurality of second fan blades are fixedly provided on the outer periphery of the extension shaft, with the plurality of first fan blades corresponding to the plurality of second fan blades.

[0014] By adopting the above technical solution, the second fan blade can also form a water vortex in the water storage chamber, and the speed is close to that of the water vortex in the dissolving chamber, thereby reducing the flow velocity difference between the two water exchange holes.

[0015] Optionally, a rubber sealing layer is fixed to the side of the cover plate facing the water exchange hole.

[0016] By adopting the above technical solution, the rubber sealing layer can enhance the sealing performance of the cover plate.

[0017] Optionally, a water replenishment tank is fixedly provided on the top of the pretreatment tank, and a water inlet is provided on the top of the water replenishment tank. The water inlet is covered with a sealing cap, and a water outlet pipe is provided at the bottom of the water replenishment tank, which is connected to the middle of the water storage chamber. The water outlet pipe is equipped with a valve.

[0018] By adopting the above technical solution, the dissolving solution is added to the water replenishment tank through the water inlet, and then the water inlet is sealed and the valve is opened. When the water level in the water storage chamber is lower than that in the water outlet pipe, the dissolving solution in the water replenishment tank is automatically replenished to the water storage chamber, thereby realizing the automatic replenishment of the dissolving solution.

[0019] Optionally, the end of the air inlet pipe away from the pretreatment tank is connected to a gas collection hood, and the outer periphery of the gas collection hood is fixed to the inner wall of the fresh air duct.

[0020] By adopting the above technical solution, dust particles in the air can be concentrated and introduced into the air intake duct through the air collection hood, and finally processed and purified by the various treatment structures of the self-purifying energy-saving fresh air system.

[0021] Optionally, each of the partition devices includes multiple partition blades arranged sequentially from top to bottom. The top ends of each partition blade are hinged to the inner wall of the fresh air duct, and the bottom of the upper partition blade overlaps with the top of the lower partition blade between two adjacent partition blades.

[0022] By adopting the above technical solution, when the exhaust device is started, each baffle blade rotates to separate from each other under the action of wind pressure. When the exhaust device stops, each baffle blade rotates under its own gravity, so that the two adjacent baffle blades overlap, thereby sealing the inner and outer ends of the fresh air duct and minimizing the risk of flying animals accidentally entering the fresh air duct.

[0023] In summary, this application includes at least the following beneficial technical effects:

[0024] 1. When the doors and windows are closed during smoggy weather, the ventilation system creates an airflow from the outside to the inside through the fresh air duct. The air from the outside environment passes through the pretreatment device, primary air filter, electronic air purifier, medium-efficiency air filter, high-efficiency air filter, temperature and humidity control device, and air sterilization device in sequence. This process purifies, regulates the temperature and humidity of the air, and sterilizes it. The relatively clean outdoor air replaces the polluted indoor air, providing more oxygen to the people inside and thus improving the comfort of the indoor environment.

[0025] 2. An external dissolving solution is introduced into the water storage chamber, circulating sequentially through the water storage chamber, dissolving chamber, and wastewater chamber. By controlling the introduction rate of the external dissolving solution, a certain amount of solution is maintained in the water storage chamber and dissolving chamber. That is, the external dissolving solution can be quickly replenished to the water storage chamber, but due to the relatively low flow rate at the water exchange hole, a certain amount of solution accumulates in the water storage chamber and dissolving chamber. At this time, the exhaust device is activated, creating an airflow from the outside to the inside through the fresh air duct. Air enters tangentially from the air inlet duct to the bottom of the dissolving chamber and comes into contact with the accumulated solution at the bottom. This dissolves larger dust particles in the air, achieving a pretreatment effect. During this process, the tangential entry of air into the dissolving chamber creates a vortex in the accumulated solution at the bottom, driving the first fan blade to rotate, preventing the dissolved dust particles from accumulating at the bottom of the dissolving chamber and becoming difficult to clean. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0027] Figure 2 This is a schematic diagram of the overall structure of the preprocessing device in the embodiments of this application.

[0028] Figure 3 This is a schematic diagram of the connection structure between the processing tank and the air inlet pipe in an embodiment of this application.

[0029] Figure 4 This is a schematic diagram of the overall structure of the water exchange component in the embodiments of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Fresh air duct; 2. Baffle device; 21. Baffle blade; 3. Pretreatment device; 31. Treatment tank; 311. Water storage chamber; 312. Dissolving chamber; 313. Wastewater chamber; 32. Baffle plate; 33. Rotating shaft; 34. First fan blade; 35. Water exchange hole; 36. Air inlet duct; 37. Air outlet duct; 38. Water exchange assembly; 381. Cover plate; 382. Hinge shaft; 383. Vertical rod; 384. Hinge seat; 385. 1. Return spring; 386. Crossbar; 4. Primary air filter; 5. Electronic air purifier; 6. Medium-efficiency air filter; 7. High-efficiency air filter; 8. Temperature and humidity control device; 9. Air sterilization device; 10. Exhaust device; 11. Extension shaft; 12. Second fan blade; 13. Rubber sealing layer; 14. Water tank; 141. Water inlet; 142. Sealing cover; 143. Water outlet pipe; 144. Valve; 15. Air collection hood. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] This application discloses a self-purifying energy-saving fresh air system.

[0033] Reference Figure 1 The self-purifying energy-saving fresh air system includes a fresh air duct 1, which is pre-embedded on one side of the building structure during construction. Both ends of the duct penetrate the inner and outer sides of the building structure, respectively, connecting the outdoor and indoor environments. Additionally, the fresh air duct 1 provides the installation foundation for other components of the self-purifying energy-saving fresh air system.

[0034] Specifically, both the inner and outer ends of the fresh air duct 1 are equipped with baffle devices 2. The inner wall of the fresh air duct 1 is provided with a pretreatment device 3, a primary air filter 4, an electronic air purification device 5, a medium-efficiency air filter 6, a high-efficiency air filter 7, a temperature and humidity control device 8, and an air sterilization device 9 in sequence from the outside to the inside. An exhaust device 10 is provided between the medium-efficiency air filter 6 and the high-efficiency air filter 7. In this embodiment, the exhaust device 10 is a variable frequency fan, which enables the fresh air duct 1 to form an airflow from the outside to the inside when the exhaust device 10 is activated, thereby drawing outdoor air into the room.

[0035] Among the other components of the aforementioned self-purifying energy-saving fresh air system:

[0036] Reference Figure 1-3The pretreatment device 3 includes a pretreatment tank 31, two partitions 32, a rotating shaft 33, and multiple first fan blades 34. The pretreatment tank 31 is a hollow cylindrical structure, with its top, bottom, front, and rear surfaces fixed to the inner wall of the fresh air duct 1. The two partitions 32 are horizontally arranged circular plate-like structures, fixed to the inner wall of the pretreatment tank 31 on all four sides, thus dividing the inner cavity of the pretreatment tank 31 into a water storage chamber 311, a dissolving chamber 312, and a wastewater chamber 313 arranged sequentially from top to bottom. Additionally, water exchange holes 35 are provided at non-central positions on both partitions 32. This allows the dissolving liquid to flow sequentially through the water storage chamber 311, the dissolving chamber 312, and the wastewater chamber 313. Both ends of the rotating shaft 33 are rotatably mounted at the center of the two partitions 32 via pre-set waterproof bearings. Three first fan blades 34 are provided, and the three first fan blades 34 are evenly fixed on the outer periphery of the rotating shaft 33. The pretreatment tank 31 facing the outdoor side of the main building is connected to an air inlet pipe 36 that is connected to the bottom of the dissolving chamber 312, and the air inlet pipe 36 is tangential to the inner wall of the pretreatment tank 31. The pretreatment tank 31 facing away from the outdoor side of the main building is connected to an air outlet pipe 37 that is connected to the top of the dissolving chamber 312.

[0037] An external dissolving solution is introduced into the water storage chamber 311, causing it to circulate sequentially through the water storage chamber 311, dissolving chamber 312, and wastewater chamber 313. By controlling the introduction speed of the external dissolving solution, the water storage chamber 311 and dissolving chamber 312 are always kept at a certain amount of dissolving solution. That is, the external dissolving solution can be quickly replenished to the water storage chamber 311, but due to the relatively low flow speed of the water exchange hole 35, a certain amount of dissolving solution accumulates in the water storage chamber 311 and dissolving chamber 312. At this time, the exhaust device 10 is activated to create an airflow from the outside to the inside in the fresh air duct 1. Air enters tangentially into the bottom of the dissolving chamber 312 through the air inlet pipe 36 and comes into contact with the dissolving solution accumulated at the bottom of the dissolving chamber 312. This causes larger dust particles and other particles in the air to dissolve in the dissolving solution, achieving a pretreatment effect. During this process, as air enters the bottom of the dissolving chamber 312 tangentially through the air inlet pipe 36, it can drive the dissolved liquid accumulated at the bottom of the dissolving chamber 312 to generate a water flow vortex, and drive the first fan blade 34 to rotate, making it difficult for dust particles dissolved in the dissolved liquid to accumulate at the bottom of the dissolving chamber 312 and become difficult to clean.

[0038] The primary air filter 4 uses a plate-type primary air filter, which can filter dust particles larger than 5μm and has the advantages of low price, light weight, good versatility and compact structure.

[0039] The electronic air purifier 5 is a flat-panel electronic air purifier, which uses a positive corona discharge method that produces a low amount of ozone to make the air particles positively charged. Then, using the Coulomb force, the charged particles are adsorbed onto the dust collection device, thereby achieving the function of dust removal.

[0040] The medium-efficiency air filter 6 uses a bag-type medium-efficiency air filter, which can serve as the front-end filter for the high-efficiency air filter 7 to reduce the load on the high-efficiency air filter 7 and extend its service life.

[0041] The high-efficiency air filtration device 7 uses a liquid tank type high-efficiency air filter, which can be used to capture particulate dust and various suspended matter larger than 0.5μm.

[0042] The temperature and humidity control device 8 includes a surface cooler, an electric heating wire heater, and an ultrasonic humidifier arranged in sequence. The surface cooler allows heat, cold, or refrigerant to flow through the inner cavity of a metal pipe, and air to flow through the outer wall of the metal pipe for heat exchange to achieve the purpose of heating or cooling the air. The electric heating wire heater assists the surface cooler in heating the air. The ultrasonic humidifier atomizes water into ultra-fine particles of 1-5 microns, which can freshen the air.

[0043] The air sterilization device 9 uses a combination of nano-photocatalytic lamps and UV lamps. The photocatalytic sterilization lamps can use photocatalysis to excite oxygen into negative oxygen ions and decompose and oxidize organic and some inorganic substances that are harmful to the human body or the environment, thereby purifying the air. The UV lamps emit ultraviolet light with a wavelength of 253.7nm to kill bacteria and viruses.

[0044] When the doors and windows are closed during smoggy weather, and the exhaust fan 10 is activated, the fresh air duct 1 forms an airflow from the outside to the inside. The air from the outside environment passes through the pretreatment device 3, the primary air filter 4, the electronic air purifier 5, the medium-efficiency air filter 6, the high-efficiency air filter 7, the temperature and humidity control device 8, and the air sterilization device 9 in sequence. This process purifies, regulates the temperature and humidity, and sterilizes the air. The relatively clean outdoor air replaces the polluted indoor air, providing more oxygen to the people indoors and thus improving the comfort of the indoor environment.

[0045] Reference Figure 1 , 2 4. In this embodiment, each partition 32 is provided with a water exchange assembly 38 for controlling the opening and closing of the water exchange hole 35. Specifically, the water exchange assembly 38 includes a cover plate 381, a hinge shaft 382, ​​and a vertical rod 383; wherein, two hinge seats 384 are fixedly provided on the bottom surface of the partition 32 on one side of the water exchange hole 35, and the two ends of the hinge shaft 382 are rotatably passed through the two hinge seats 384 respectively, so that the hinge shaft 382 can rotate around its axis; the cover plate 381 has a rectangular plate structure, and the covering surface of the cover plate 381 is larger than the cross-section of the water exchange hole 35. One side of the cover plate 381 is fixed to the hinge shaft 382, ​​and the cover plate 381 is located between the two hinge seats 384, so that the hinge shaft 382 can drive the cover plate 381 to rotate around the axis of the hinge shaft 382.

[0046] A return spring 385 is provided between the hinge shaft 382 and each hinge seat 384. In this embodiment, the return spring 385 is a torsion spring. The return spring 385 enables the cover plate 381 to seal the bottom end of the water exchange hole 35. Specifically, a fixing block is fixedly provided on the outer peripheral surface of the hinge shaft 382 at a position 8 cm away from the outer side of each hinge seat 384. The return spring 385 is sleeved on the outer peripheral surface of the hinge shaft 382. One end of the return spring 385 is connected and fixed to the fixing block, and the other end is connected to the hinge seat 384 near the fixing block. This allows the hinge shaft 382 to rotate around the axis of the hinge shaft 382 under the torsion of the return spring 385, thereby enabling the cover plate 381 to seal the bottom end of the water exchange hole 35.

[0047] The vertical rod 383 is arranged vertically, and the top of the vertical rod 383 is connected and fixed to the hinge shaft 382. A horizontal rod 386 is fixed on the outer periphery of the rotating shaft 33 and is arranged to cross and overlap with the bottom of the vertical rod 383. When the water vortex drives the rotating shaft 33 to rotate through the first fan blade 34, the horizontal rod 386 can rotate with the rotating shaft 33. Because the horizontal bar 386 and the vertical bar 383 are arranged in an overlapping manner, the horizontal bar 386 can push the vertical bar 383 as it rotates with the rotating shaft 33. This allows the vertical bar 383 to drive the hinge shaft 382 to overcome the torque of the return spring 385 and rotate. As a result, the cover plate 381 releases its sealing effect on the water exchange hole 35, allowing the dissolved liquid between the water storage chamber 311 and the dissolving chamber 312, and between the dissolving chamber 312 and the wastewater chamber 313, to flow normally. Conversely, if the cover plate 381 seals the water exchange hole 35, the dissolved liquid between the water storage chamber 311 and the dissolving chamber 312, and between the dissolving chamber 312 and the wastewater chamber 313, cannot flow normally.

[0048] During the operation of the self-purifying energy-saving fresh air system, the outdoor air quality can be roughly assessed first. When the outdoor air quality is poor, the power of the exhaust device 10 can be increased. The higher the power of the exhaust device 10, the greater the wind speed of the air inlet pipe 36 and the air outlet pipe 37, the greater the water vortex speed, the greater the rotation speed of the rotating shaft 33 and the horizontal bar 386, the more times the horizontal bar 386 contacts the vertical bar 383 per unit time, the more times the cover plate 381 is opened and closed per unit time, the faster the flow rate of the dissolving liquid, and the better the dissolution effect of dust particles. Conversely, when the outdoor air quality is relatively poor, the power of the exhaust device 10 can be reduced, the flow rate of the dissolving liquid can be slowed down, and the dissolution liquid can be saved while meeting the pretreatment requirements of dust particles, thus saving energy.

[0049] In this embodiment, an extension shaft 11 is fixedly provided at the top of the rotating shaft 33, and a plurality of second fan blades 12 are fixedly provided on the outer periphery of the extension shaft 11. There are three second fan blades 12, and the three first fan blades 34 are correspondingly provided with the three second fan blades 12. The arrangement of the second fan blades 12 enables the water storage cavity 311 to also form a water flow vortex, and the speed is close to that of the water flow vortex in the dissolving cavity 312, thereby reducing the flow velocity difference between the two water exchange holes 35.

[0050] In this embodiment, a rubber sealing layer 13 is fixedly provided on the side of the cover plate 381 facing the water exchange hole 35; the rubber sealing layer 13 can enhance the sealing performance of the cover plate 381.

[0051] In this embodiment, a water replenishment tank 14 is fixedly installed on the top of the pretreatment tank 31. The top of the water replenishment tank 14 has a water inlet 141, which is covered with a sealing cap 142. The bottom of the water replenishment tank 14 is provided with a water outlet pipe 143 that communicates with the middle of the water storage chamber 311, and the water outlet pipe 143 is provided with a valve 144. The dissolving solution is added to the water replenishment tank 14 through the water inlet 141, and then the water inlet 141 is sealed and the valve 144 is opened. When the water level in the water storage chamber 311 is lower than that in the water outlet pipe 143, the dissolving solution in the water replenishment tank 14 is automatically replenished to the water storage chamber 311, thereby realizing the automatic replenishment of the dissolving solution.

[0052] In this embodiment, the end of the air inlet pipe 36 away from the pretreatment tank 31 is connected to a trumpet-shaped air collection hood 15, and the outer periphery of the air collection hood 15 is fixed to the inner wall of the fresh air duct 1; dust particles in the air can be concentrated and introduced into the air inlet pipe 36 through the air collection hood 15, and finally processed and purified by the various treatment structures of the self-purifying energy-saving fresh air system.

[0053] In this embodiment, the baffle device 2 installed at both ends of the fresh air duct 1 includes multiple baffle blades 21 arranged sequentially from top to bottom. The top ends of each baffle blade 21 are hinged to the inner wall of the fresh air duct 1, and the bottom of the upper baffle blade 21 overlaps with the top of the lower baffle blade 21 between adjacent baffle blades 21. When the exhaust device 10 is started, each baffle blade 21 rotates to separate itself under the action of wind pressure. When the exhaust device 10 is stopped, each baffle blade 21 rotates under its own gravity, causing two adjacent baffle blades 21 to overlap, thereby sealing both ends of the fresh air duct 1 and minimizing the risk of flying animals entering the fresh air duct 1.

[0054] Implementation principle: When doors and windows are closed during smoggy weather, and the exhaust device 10 is activated, the fresh air duct 1 forms an airflow from the outside to the inside. The air from the outside environment passes through the pretreatment device 3, the primary air filter 4, the electronic air purifier 5, the medium-efficiency air filter 6, the high-efficiency air filter 7, the temperature and humidity control device 8, and the air sterilization device 9 in sequence. The air is purified, temperature and humidity are adjusted, and sterilization is performed. The relatively clean outdoor air replaces the polluted indoor air, providing more oxygen supply for the people indoors, thereby improving the comfort of the indoor environment.

[0055] The embodiments described herein are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A self-cleaning energy-saving fresh air system, comprising a fresh air pipeline (1) fixed through a building main body, characterized in that: The new air pipeline (1) is provided with a blocking device (2) at both ends, the inner wall of the new air pipeline (1) is sequentially provided with a pretreatment device (3), an initial efficiency air filter device (4), an electronic air purification device (5), a medium efficiency air filter device (6), a high efficiency air filter device (7), a temperature and humidity adjusting device (8) and an air sterilization device (9) from outside to inside, and an air extraction device (10) is arranged between the medium efficiency air filter device (6) and the high efficiency air filter device (7).

2. The self-cleaning energy-saving fresh air system according to claim 1, characterized in that: The rotating shaft (33) is provided with an extension shaft (11) at the top, a plurality of second fan leaves (12) are fixedly arranged on the outer periphery of the extension shaft (11), and the plurality of first fan leaves (34) and the plurality of second fan leaves (12) are correspondingly arranged.

3. The self-cleaning energy-saving fresh air system according to claim 1, characterized in that: The side of the cover plate (381) facing the water changing hole (35) is fixedly provided with a rubber sealing layer (13).

4. The self-cleaning energy-saving fresh air system according to claim 1, characterized in that: The pretreatment tank (31) is provided with a water supplement tank (14) at the top, the top of the water supplement tank (14) is provided with a water inlet (141), the water inlet (141) is covered with a sealing cover (142), the bottom of the water supplement tank (14) is provided with a water outlet pipe (143) connected with the middle part of the water storage cavity (311), and the water outlet pipe (143) is provided with a valve (144).

5. The self-cleaning energy-saving fresh air system according to claim 1, characterized in that: The air inlet pipe (36) is communicated with a gas collecting hood (15) at one end away from the pretreatment tank (31), and the periphery of the gas collecting hood (15) is fixed to the inner wall of the fresh air pipe (1).

6. The self-cleaning energy-saving fresh air system according to claim 1, characterized in that: Each of the barrier devices (2) comprises a plurality of barrier blades (21) arranged in sequence from top to bottom, the top of each of the barrier blades (21) is hinged to the inner wall of the fresh air pipe (1), and between two adjacent barrier blades (21), the bottom of the upper barrier blade (21) is arranged in overlapping manner with the top of the lower barrier blade (21).

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