Air purifier

Abstract

The present invention discloses an air purifier, comprising: a housing having an air inlet and an air outlet, the housing defining a receiving cavity communicating the air inlet and the air outlet; a water supply device including a water tank and a water distribution pipe, the water tank and the water distribution pipe being communicated through a water inlet pipe, and a plurality of water spray nozzles being provided at the water outlet end of the water distribution pipe; a rotating body rotatably disposed in the receiving cavity, the rotating body being spaced apart from the inner side wall of the housing; the rotating body disperses the water liquid sprayed thereon and throws it onto the inner side wall of the receiving cavity, the inner diameter of the water distribution pipe being D1, satisfying: #imgabs0# where L is the liquid flow rate and V1 is the liquid flow velocity. According to the air purifier of the embodiment of the present invention, the purification efficiency of the air can be improved according to the change of the flow rate.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification, and more particularly to an air purifier. Background Art

[0002] In the related art of air purification equipment, it is difficult to determine the required liquid flow rate, resulting in a low air purification efficiency. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0004] To this end, the present invention provides an air purifier with high purification efficiency.

[0005] The air purifier according to an embodiment of the present invention includes: a housing having an air inlet and an air outlet, and the housing defines a receiving cavity communicating the air inlet and the air outlet; a water supply device including a water tank and a water distribution pipe communicating with each other, and a water spraying port is provided at the water outlet end of the water distribution pipe; a rotating body rotatably disposed in the receiving cavity, and the rotating body is spaced apart from the inner side wall of the housing; the rotating body disperses the water sprayed into it and throws it onto the inner side wall of the receiving cavity, and the inner diameter of the water distribution pipe is D1, satisfying: , where L is the liquid flow rate and V1 is the liquid flow velocity.

[0006] For the air purifier according to an embodiment of the present invention, by establishing the relationship between the inner diameter of the water distribution pipe and the liquid flow rate, the influence of the liquid flow rate on the air purification efficiency can be determined, and the air purification efficiency can be improved according to the flow rate change.

[0007] According to an embodiment of the present invention, the air purifier further includes: a motor connected to the rotating body to drive the rotating body to rotate.

[0008] Further, the motor is located above the rotating body.

[0009] According to an embodiment of the present invention, the rotating body is located above the water supply device to purify air.

[0010] According to an optional example of the present invention, the rotating body includes: a rotor connected to the motor shaft of the motor; a packing member disposed in the rotor and rotating synchronously with the rotor.

[0011] According to another alternative example of the present invention, the rotor includes: a first turntable and a second turntable, the first turntable and the second turntable are arranged at intervals in the axial direction, and the first turntable is located below the second turntable; a plurality of connecting columns, and the plurality of connecting columns are connected between the first turntable and the second turntable.

[0012] Further, the packing member is arranged between the first turntable and the second turntable, and the packing member includes a plurality of annular packing layers sleeved with each other in the radial direction.

[0013] Further, the packing member further includes: an inner support member, and the plurality of annular packing layers are all supported on the inner support member.

[0014] According to another alternative example of the present invention, the air purifier further includes: a bearing seat, and a plurality of connecting feet are arranged on the bearing seat. The plurality of connecting feet extend radially outward and are connected to the inner wall of the accommodating cavity, and the rotor is connected to the bearing seat through a flange member.

[0015] According to another embodiment of the present invention, the water tank and the water distribution pipe are communicated through a water inlet pipe.

[0016] According to another embodiment of the present invention, the water outlet end extends into the rotating body and is arranged at intervals from the inner side wall of the rotating body.

[0017] According to another embodiment of the present invention, a plurality of the water spray nozzles are arranged at intervals along the circumferential direction of the water distribution pipe.

[0018] According to another embodiment of the present invention, the water supply device is arranged in the accommodating cavity.

[0019] According to another embodiment of the present invention, the water supply device further includes a water pump. A plurality of spaced-apart mounting columns are arranged in the water tank, the water pump is fixedly connected to the plurality of mounting columns, and the water pump is communicated with the water inlet pipe.

[0020] According to another embodiment of the present invention, the air purifier further includes: a water receiving tray, and in the up-down direction, the water receiving tray is arranged between the rotating body and the water tank. The water receiving tray is used for receiving the water liquid falling from above and guiding it into the water tank.

[0021] According to another embodiment of the present invention, the air purifier further includes: a fan assembly, and the fan assembly is used for guiding the air from the air inlet to the air outlet.

[0022] Further, the fan assembly is arranged above the rotating body, and the air outlet and the fan assembly are opposite in the radial direction.

[0023] According to another embodiment of the present invention, the fan assembly includes a fan and a volute. The fan is disposed within the volute, and the volute is fixed to the inner wall of the accommodation chamber.

[0024] According to another embodiment of the present invention, the air inlet is located on the side wall of the housing.

[0025] According to yet another embodiment of the present invention, a filter element is provided at the air outlet, and the filter element is fixed to the inner wall of the accommodation chamber.

[0026] According to yet another embodiment of the present invention, the air purifier further includes: an outer shell, and the housing is disposed within the outer shell and is snap-connected to the outer shell.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0029] Figure 1 is a schematic diagram of an air purifier according to an embodiment of the present invention;

[0030] Figure 2 is an exploded view of an air purifier according to an embodiment of the present invention;

[0031] Figure 3 is a schematic diagram of a rotating body of an air purifier according to an embodiment of the present invention.

[0032] Reference Signs:

[0033] Air purifier 100,

[0034] Housing 10, air inlet 11, air outlet 12, outer cylinder 13,

[0035] Water supply device 20, water tank 21, water distribution pipe 22, water outlet end 221, mounting post 211,

[0036] Rotating body 30, rotor 31, first turntable 311, second turntable 312, connecting column 313, packing member 32,

[0037] Motor 40, rotating shaft 41, water receiving tray 50, fan assembly 60, fan 61, volute 62, outer shell 70. Detailed Embodiments

[0038] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0039] Reference will be made below Figures 1 - 3 to describe an air purifier 100 according to an embodiment of the present invention. The air purifier 100 can be used to purify indoor air.

[0040] As Figure 1 shown, the air purifier 100 according to an embodiment of the present invention includes a housing 10, a water supply device 20, and a rotating body 30.

[0041] Specifically, the housing 10 has an air inlet 11 and an air outlet 12. An accommodation cavity is defined inside the housing 10, and the accommodation cavity communicates with the air inlet 11 and the air outlet 12. Air can enter the accommodation cavity from the air inlet 11, pass upward through the purification of the rotating body 30, and then discharge the purified gas out of the accommodation cavity through the air outlet 12.

[0042] Optionally, the water supply device 20 includes a water tank 21 and a water distribution pipe 22. A water spraying port is provided at the water outlet end 221 of the water distribution pipe 22. The liquid enters the water distribution pipe 22 through the water inlet pipe and flows downward along the water distribution pipe 22, and then sprays out in all directions through the water spraying port, making the water outlet of the water distribution pipe 22 more uniform.

[0043] Furthermore, the rotating body 30 is rotatably arranged in the accommodation cavity, and the rotating body 30 is spaced apart from the inner side wall of the housing 10. In this way, the liquid in the water distribution pipe 22 sprays water into the rotating body 30 through the water spraying port at the water outlet end 221. Due to the high-speed rotation of the rotating body 30, the rotating body 30 breaks up the water liquid sprayed into it. The high-speed moving small liquid droplets collide with the particulate matter in the air, and the high-speed moving water particles can wash the tiny dust in the air. Organic substances such as formaldehyde dissolve in water, thus playing a role in purifying the air.

[0044] At the same time, the rotating body 30 can throw some of the broken-up liquid droplets onto the inner side wall of the accommodation cavity and return to the water tank 21 along the inner wall of the accommodation cavity, enabling the recycling of water resources.

[0045] Where the inner diameter of the water distribution pipe 22 is D1, satisfying: , where L is the liquid flow rate and V1 is the liquid flow velocity. It can be seen that there is a specific relationship between the inner diameter of the water distribution pipe 22 and the liquid flow rate, so that the influence of the liquid flow rate on the air purification efficiency can be known. In this way, the air purification efficiency can be directly determined by adjusting the liquid flow rate. Compared with the methods of improving the air purification efficiency in the related art, the operation scheme is simplified, and it is also more intuitive and easy to implement.

[0046] According to the air purifier 100 of an embodiment of the present invention, by establishing a relational expression between the inner diameter of the water distribution pipe 22 and the liquid flow rate, the influence of the liquid flow rate on the air purification efficiency can be determined, and the air purification efficiency can be improved according to the flow rate change.

[0047] As Figure 3 shown, the water outlet end 221 of the water distribution pipe 22 extends into the rotating body 30 and sprays water into the rotating body 30. It can be seen that the sprayed water flows radially outward within the rotating body 30 (as Figure 3 shown by the arrow direction of w), and air can enter from the outer periphery of the rotating body 30 and flow radially inward (as Figure 3 shown by the arrow direction of a). The air meets the dispersed liquid droplets, and the liquid droplets can capture fine particles and gases such as formaldehyde in the air, thereby playing a role in purifying the air.

[0048] It should be noted that the water distribution pipe 22 includes a main pipe and a water spraying port. An inlet is provided at the end of the main pipe, and the inlet can be composed of one or more. The water spraying port is provided at the water outlet end 221 of the water distribution pipe 22.

[0049] According to an embodiment of the present invention, the air purifier 100 further includes a motor 40. The motor 40 is located above the rotating body 30. The motor 40 is connected to the rotating body 30 through a rotating shaft 41 to drive the rotating body 30 to rotate. Under the driving action of the motor 40, the rotating body 30 can be kept rotating at a high speed.

[0050] Furthermore, the rotating body 30 is located above the water supply device 20 to purify the air. In this way, the water flow in the water supply device 20 can flow from bottom to top, and then be sprayed into the rotating body 30 through the water outlet end 221 of the water distribution pipe 22, which is convenient for controlling the amount of water sprayed into the rotating body 30.

[0051] According to an optional example of the present invention, the rotating body 30 includes a rotor 31 and a packing member 32. The rotor 31 is connected to the motor shaft of the motor 40. The motor 40 can drive the rotor 31 to rotate at a high speed in the accommodating cavity. The packing member 32 is arranged in the rotor 31, and at the same time, the packing member 32 can rotate synchronously with the rotor 31. In this way, by driving the rotor 31 and the packing member 32 to rotate at a high speed by the motor 40, the sprayed water can be shredded into fine liquid droplets, which is beneficial to increasing the contact area with the air and improving the air purification efficiency.

[0052] According to another optional example of the present invention, the rotor 31 includes a first turntable 311, a second turntable 312 and a plurality of connecting columns 313. The first turntable 311 and the second turntable 312 are arranged at intervals in the axial direction, as Figure 3As shown, the first turntable 311 and the second turntable 312 are arranged at intervals in the vertical direction, and the first turntable 311 is located below the second turntable 312. A plurality of connecting columns 313 are connected between the first turntable 311 and the second turntable 312 to form a rotor 31 as a whole. The gap between the first turntable 311 and the second turntable 312 can be used to fill the packing member 32.

[0053] Further, the packing member 32 is arranged between the first turntable 311 and the second turntable 312. The packing member 32 includes a plurality of annular packing layers, and the plurality of annular packing layers are sleeved with each other in the radial direction.

[0054] It can be understood that the water distribution pipe 22 is located at the center of the rotating body 30 and is in a stationary state. The motor 40 drives the rotating body 30 to rotate at a high speed. After the liquid is ejected from the water spray port of the water distribution pipe 22, a part of the water liquid is blocked by the innermost packing layer in the radial direction and is driven to make a rotational movement at almost the same speed as that of this layer of packing, and another part of the water liquid passes through this layer of packing and enters the next packing layer. In the next packing layer, similarly, a part of the water liquid is blocked and a part of the water liquid passes through. After passing through several packing layers, the liquid at a certain point in the packing layer has almost the same rotational speed as the packing layer at this place. When the rotational speed of the rotating body 30 increases, the speed of the liquid droplets thrown out from the packing layer also increases, and the kinetic energy of the liquid droplets impacting the inner wall of the accommodating cavity increases, which will cause the liquid droplets to rebound by themselves and strengthen the splashing effect of the liquid film on the inner wall of the accommodating cavity. Furthermore, the number of liquid droplets between the outer periphery of the rotating body 30 and the inner wall of the accommodating cavity increases, which is beneficial to the capture of dust.

[0055] Further, the packing member 32 further includes an inner support member, and the plurality of annular packing layers are all supported on the inner support member. The inner support member can prevent the packing layer from deforming or being displaced under the action of centrifugal force.

[0056] According to another optional example of the present invention, the air purifier 100 further includes a bearing seat. A plurality of connecting feet are provided on the bearing seat. The plurality of connecting feet extend radially outward, and the plurality of connecting feet are respectively connected to the inner wall of the accommodating cavity to support the rotor 31. Specifically, each connecting foot can be connected to the inner wall of the accommodating cavity through screws, etc. The rotor 31 is connected to the bearing seat through a flange member to ensure a tight and reliable connection between the rotor 31 and the bearing seat.

[0057] Further, the water tank 21 and the water distribution pipe 22 are communicated through a water inlet pipe. The water inlet pipe can be a plastic hose. One end of the water inlet pipe is communicated with the water tank 21, and the other end of the water inlet pipe is communicated with the water inlet end of the water distribution pipe 22. The water in the water tank 21 can flow upward through the water inlet pipe to the water distribution pipe 22 and then be ejected from the water outlet end 221 of the water distribution pipe 22.

[0058] Further, a plurality of water spray nozzles are arranged at intervals along the circumferential direction of the water distribution pipe 22. In this way, the water outlet end 221 of the water distribution pipe 22 can spray water more evenly in all directions, making the water droplet distribution of the rotating body 30 uniform in the circumferential direction.

[0059] Further, the water outlet end 221 of the water distribution pipe 22 extends into the rotating body 30, so that the liquid discharged from the water outlet end 221 can be sprayed into the rotating body 30. There is a gap between the water outlet end 221 and the inner side wall of the rotating body 30, which can make the liquid droplet distribution uniform in the height direction of the rotating body 30 and prevent water droplets from concentrating at a certain height inside the rotating body 30.

[0060] Further, the water supply device 20 is arranged in the accommodation cavity, and the water supply device 20 is integrated in the housing 10, which not only makes the whole machine look simple and beautiful, but also easy to carry. Optionally, the water supply device 20 can also be arranged outside the accommodation cavity.

[0061] According to another embodiment of the present invention, the water supply device 20 further includes a water pump. A plurality of mounting posts 211 are arranged in the water tank 21, and the plurality of mounting posts 211 are distributed at intervals. The water pump can be fixedly connected to the plurality of mounting posts 211. In this way, the water pump does not need to be immersed in the liquid, and the water pump is connected to the water inlet pipe to provide power for the water in the water tank 21 to flow into the water inlet pipe.

[0062] In the description of the present invention, "a plurality of" means two or more.

[0063] According to still another embodiment of the present invention, the air purifier 100 further includes a water receiving tray 50. In the up and down direction, the water receiving tray 50 is arranged between the rotating body 30 and the water tank 21. The water receiving tray 50 is used to receive the liquid falling from above, and at the same time, it can also drain the liquid into the water tank 21, collect the downward flowing liquid and guide it into the water tank 21, so that the liquid can be recycled and the waste of water resources can be avoided.

[0064] According to still another embodiment of the present invention, the air purifier 100 further includes a fan assembly 60. The fan assembly 60 is arranged above the rotating body 30. Due to the action of the fan assembly 60, the air flows quickly from bottom to top, thereby accelerating the collision speed of the air and the liquid droplets and improving the air purification efficiency. The air outlet 12 and the fan assembly 60 are opposite in the radial direction to discharge the purified air through the air outlet 12.

[0065] According to still another embodiment of the present invention, the fan assembly 60 includes a fan 61 and a volute 62. The fan 61 is arranged in the volute 62. The fan 61 can be a centrifugal fan 61. The volute 62 is fixed on the inner wall of the accommodation cavity. In this way, the fan 61 can be supported in the accommodation cavity, and the volute 62 has a protective effect on the fan 61.

[0066] According to an embodiment of the present invention, the air inlet 11 is located on the side wall of the housing 10. As Figure 1 shown, the air inlet 11 is located at the lower position on the side wall of the housing 10. In this way, air can enter the accommodation cavity through the lower side of the housing 10. Inside the accommodation cavity, the air flows from bottom to top, and the water droplets dispersed between the rotating body 30 and the housing 10 and around in the radial direction can capture particulate matter and organic molecules such as formaldehyde in the air. In addition, part of the air enters the rotating body 30 and meets the water droplets inside the rotating body 30, thereby purifying this part of the air.

[0067] According to still another embodiment of the present invention, a filter element is further provided at the air outlet 12 for further purifying the air. The filter element can be fixed on the inner wall of the accommodation cavity.

[0068] According to still another embodiment of the present invention, the air purifier 100 further includes an outer shell 70. The housing 10 is provided inside the outer shell 70, and the housing 10 is snap-connected to the outer shell 70, which is convenient for disassembly and assembly, so as to facilitate later maintenance and replacement.

[0069] Optionally, an outer cylinder 13 is sleeved outside the rotating body 30, and the outer cylinder 13 is located inside the accommodation cavity. An air inlet is provided on the outer cylinder 13, and the air inlet and the air inlet 11 are arranged opposite to each other in the radial direction to further protect the rotating body 30.

[0070] Next, refer to the attached Figures 1 to 3 Specifically describe the process of purifying air of the air purifier 100 according to the embodiment of the present invention.

[0071] Under the driving action of the water pump, the water in the water tank 21 flows into the water distribution pipe 22 through the water inlet pipe. The water outlet end 221 of the water distribution pipe 22 is located between the first turntable 311 and the second turntable 312. A plurality of fine water spray nozzles are provided at the water outlet end 221 for water spraying. The motor 40 drives the rotating body 30 to rotate at a high speed, generating a great centrifugal force. The water sprayed from the water distribution pipe 22 moves at a high speed, and after passing through a plurality of packing layers, micron-sized dispersed droplets are generated and are thrown onto the inner wall of the accommodation cavity. The air inlet 11 is located below the rotating body 30. Due to the action of the fan 61, the air flows rapidly from bottom to top. The high-speed moving small droplets collide with the particulate matter in the air, and the high-speed moving water particles can wash the tiny dust in the air. Organic substances such as formaldehyde dissolve in water, thereby playing a role in purifying the air.

[0072] For the air purifier 100 of the present invention, the liquid flow rate in the water distribution pipe 22 and the rotation speed of the rotating body 30 have a significant impact on the air purification efficiency. According to the experimental data:

[0073] According to an embodiment of the present invention, when other conditions remain unchanged, the liquid flow rate in the water distribution pipe 22 affects the purification efficiency. When the rotational speed of the rotating body 30 is in the low-speed range (less than 1000 r / min), for example, when the measured value is 800 r / min, as the liquid flow rate increases (from 3 L / min to 10 L / min), the air purification efficiency remains basically unchanged. When the rotational speed of the rotating body 30 is greater than 1000 r / min, for example, the measured value is 1500 r / min, as the liquid flow rate increases (from 3 L / min to 10 L / min), the air purification efficiency decreases instead.

[0074] The main reasons are as follows. On the one hand, as the liquid flow rate increases, the residence time of the liquid becomes shorter, which is not conducive to mass transfer. At the same time, due to the increase in the liquid flow rate, the volume of the liquid droplets becomes larger and the liquid film becomes thicker, which is also not conducive to mass transfer. On the other hand, when the liquid flow rate increases, the relative velocity between the air and the liquid increases, which is conducive to mass transfer. Experiments show that in the low rotational speed range, the turbulence degree of the rotating body 30 is not large. At this time, when the liquid flow rate increases, the relative velocity between the gas and the liquid increases, which is conducive to the mass transfer process. However, in the high rotational speed range, the turbulence degree generated by the rotating body 30 is extremely large, making the relative velocity between the gas and the liquid caused by the increase in the liquid flow rate, thus weakening the influence on the mass transfer process.

[0075] According to another embodiment of the present invention, when other conditions remain unchanged, the influence of the rotational speed of the rotating body 30 on the air purification efficiency. When the rotational speed of the rotating body 30 is in the low rotational speed range (less than 1500 r / min), as the rotational speed of the rotating body 30 increases, the air purification efficiency increases rapidly. However, when the rotational speed of the rotating body 30 is greater than 1500 r / min, the increase in the air purification efficiency is relatively small. When the rotational speed of the rotating body 30 is greater than 2000 r / min, the air purification efficiency does not change significantly, and at the same time, the noise increases and the cost of the structure increases significantly.

[0076] The variation law of the air purification efficiency with the rotational speed of the rotating body 30 is listed as follows:

[0077]

[0078] The reasons are as follows. On the one hand, increasing the rotational speed of the rotating body 30, its centrifugal acceleration increases rapidly, which is conducive to mass transfer. At the same time, increasing the rotational speed of the rotating body 30 leads to an increase in the linear velocity of the packing member 32, and then the collision frequency between the packing member 32 and the liquid increases, resulting in a large number of liquid droplets and liquid mists being generated, and the surface is renewed a large amount, thus greatly strengthening the mass transfer process. On the other hand, increasing the rotational speed of the rotating body 30 causes the liquid residence time to decrease rapidly, and the contact time between the gas and the liquid becomes shorter rapidly, which is not conducive to the overall mass transfer.

[0079] Optionally, the motor 40 drives the rotating body 30 to rotate. The motor 40 controls the rotational speed of the rotating body 30 to be greater than 800 r / min and less than 3000 r / min. For example, it can be 900 r / min, 1000 r / min, 1300 r / min, 1500 r / min, 1700 r / min, 1900 r / min, 2100 r / min, 2300 r / min, 2500 r / min, 2700 r / min, 2900 r / min, etc. Specifically, it can be selected according to actual needs. By limiting the rotational speed of the rotating body 30 controlled by the motor 40 within the above range, the rotational speed of the rotating body 30 is within a suitable range, which can improve the air purification efficiency. At the same time, it can also take into account costs and noise, achieving the optimal purification effect.

[0080] Furthermore, the motor 40 controls the rotational speed of the rotating body 30 to be greater than 1000 r / min and less than 2500 r / min. For example, it can be 1300 r / min, 1500 r / min, 1700 r / min, 1900 r / min, 2000 r / min, 2100 r / min, 2300 r / min, etc. Specifically, it can be selected according to actual needs. By limiting the rotational speed of the rotating body 30 controlled by the motor 40 within the above range, the rotational speed of the rotating body 30 is within a suitable range, which can improve the air purification efficiency. At the same time, it can also take into account costs and noise, achieving the optimal purification effect.

[0081] Furthermore, the motor 40 controls the rotational speed of the rotating body 30 to be greater than 1300 r / min and less than 2000 r / min. For example, it can be 1400 r / min, 1500 r / min, 1600 r / min, 1700 r / min, 1800 r / min, 1900 r / min, etc. Specifically, it can be selected according to actual needs. By limiting the rotational speed of the rotating body 30 controlled by the motor 40 within the above range, the rotational speed of the rotating body 30 is within a suitable range, which can improve the air purification efficiency. At the same time, it can also take into account costs and noise, achieving the optimal purification effect.

[0082] Furthermore, the motor 40 controls the rotational speed of the rotating body 30 to be greater than 1500 r / min and less than 1700 r / min. For example, it can be 1550 r / min, 1600 r / min, 1650 r / min, 1680 r / min, etc. Specifically, it can be selected according to actual needs. By limiting the rotational speed of the rotating body 30 controlled by the motor 40 within the above range, the rotational speed of the rotating body 30 is within a suitable range, which can improve the air purification efficiency. At the same time, it can also take into account costs and noise, achieving the optimal purification effect.

[0083] Further, let D1 be 280 mm, the rotational speed of the rotating body 30 be n, with the unit of n being r / min. According to the formula ω = 2πn / 60, where the unit of ω is rad / s, and v = ωD1 / 2, then v = nπD1 / 60. When 800 r / min < n < 3000 r / min, then 11.72 m / s < v < 43.96 m / s; when 1000 r / min < n < 2500 r / min, then 14.65 m / s < v < 36.63 m / s; when 1300 r / min < n < 2000 r / min, then 19.05 m / s < v < 29.31 m / s; when 1500 r / min < n < 1700 r / min, then 21.98 m / s < v < 24.91 m / s.

[0084] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0085] Other components and operations of the air purifier 100 according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0086] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0087] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air purifier, characterized in that, Comprising: A housing having an air inlet and an air outlet, and the housing defining a receiving cavity communicating the air inlet and the air outlet; A water supply device including a water tank and a water distribution pipe communicating with each other, and a water spray nozzle provided at the water outlet end of the water distribution pipe; A rotating body rotatably provided in the receiving cavity, the rotating body being spaced apart from the inner side wall of the housing, and the rotating body including: A rotor including a first turntable and a second turntable, the first turntable and the second turntable being axially spaced apart, the first turntable being located below the second turntable; and a plurality of connecting columns connecting the first turntable and the second turntable; A packing member provided in the rotor and rotating synchronously with the rotor, the packing member being provided between the first turntable and the second turntable, and the packing member including a plurality of annular packing layers sleeved with each other in the radial direction; The air purifier further includes a motor, the rotor being connected to the motor shaft of the motor, and the motor and the rotating body being connected to drive the rotating body to rotate, and the motor controlling the linear velocity of the rotating body to be greater than 11.72 m / s and less than 43.96 m / s; The rotating body disperses the water sprayed into it and throws it towards the inner side wall of the accommodating cavity. The inner diameter of the water distribution pipe is D1, satisfying: , where L is the liquid flow rate and V1 is the liquid flow velocity.

2. The air purifier according to claim 1, wherein The motor is located above the rotating body.

3. The air purifier according to claim 1, wherein The rotating body is located above the water supply device to purify air.

4. The air purifier according to claim 1, characterized in that, The packing member further includes an inner support member, and the plurality of annular packing layers are all supported on the inner support member.

5. The air purifier according to claim 1, characterized in that, Further comprising: A bearing seat provided with a plurality of connecting legs, the plurality of connecting legs extending radially outward and connected to the inner wall of the receiving cavity, and the rotor being connected to the bearing seat through a flange member.

6. The air purifier according to claim 1, wherein The water tank and the water distribution pipe are communicated through a water inlet pipe.

7. The air purifier according to claim 1, characterized in that The water outlet end extends into the rotating body and is spaced apart from the inner side wall of the rotating body.

8. The air purifier according to claim 1, wherein The plurality of water spray nozzles are arranged at intervals along the circumferential direction of the water distribution pipe.

9. The air purifier according to claim 1, wherein The water supply device is provided in the receiving cavity.

10. The air purifier according to claim 6, wherein, The water supply device further includes a water pump, and a plurality of spaced-apart mounting columns are provided in the water tank, and the water pump is fixedly connected to the plurality of mounting columns, and the water pump is communicated with the water inlet pipe.

11. The air purifier according to claim 1, wherein, Further comprising: A water receiving tray, the water receiving tray being provided between the rotating body and the water tank in the vertical direction, and the water receiving tray being used for receiving the water liquid falling from above and guiding it into the water tank.

12. The air purifier according to claim 1, wherein Further comprising: A fan assembly for guiding air from the air inlet to the air outlet.

13. The air purifier according to claim 12, characterized in that, The fan assembly is provided above the rotating body, and the air outlet and the fan assembly are opposite in the radial direction.

14. The air purifier according to claim 12, characterized in that, The fan assembly includes a fan and a volute, the fan being provided in the volute, and the volute being fixed to the inner wall of the receiving cavity.

15. The air purifier according to claim 1, wherein, The air inlet is located on the side wall of the housing.

16. The air purifier according to claim 1, wherein A filter member is provided at the air outlet, and the filter member is fixed to the inner wall of the receiving cavity.

17. The air purifier according to claim 1, characterized in that, Further comprising: An outer shell, the housing being provided in the outer shell and snap-connected to the outer shell.

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