Air filtering device with circulating filter element

Abstract

The utility model discloses an air filtering device with a circulating filter element, which comprises a machine body provided with an air guide chamber, an air inlet and an air outlet, a circulating fan is arranged in the air guide chamber, a water collecting tray is arranged at the bottom of the air guide chamber, and the air inlet is positioned above the water collecting tray; the front-end filter element is detachably connected to the machine body, and the front-end filter element is arranged between the circulating fan and the air inlet; the cooling module is arranged between the front-end filter element and the air inlet and comprises a plurality of heat exchange pieces perpendicular to the horizontal plane, a cooling channel directly facing the air inlet is formed between every two adjacent heat exchange pieces, the bottoms of the heat exchange pieces are located in the water collecting tray, and the air inlet directly faces the middles of the heat exchange pieces; and the rear-end filter element is connected to the machine body and is arranged between the circulating fan and the air outlet. The air purifier can realize multiple filtering, is good in filtering effect, can reduce moisture in air, is good in cleaning effect of the filter element, is convenient to clean, is high in circulating frequency of the filter element, and is energy-saving and environment-friendly.

Description

Technical Field

[0001] This utility model relates to the field of air filtration, and in particular to an air filtration device with filter cartridge circulation. Background Technology

[0002] With industrial development, the problem of impurities mixed in the air has become increasingly apparent. Inhaling air containing significant impurities can affect human health, and these impurities can also affect the production processes of some products. Therefore, air purification devices are being used more and more widely in homes, offices, and industrial environments.

[0003] In traditional technology, air filtration devices typically use a fan and disposable filter cartridges. The fan drives the air through the disposable filter cartridges to achieve filtration. Although this design is simple, the filter cartridges have a heavy operating burden, the filtration effect is not good, and the filter cartridges need to be replaced frequently to maintain filtration performance, resulting in high operating costs. Discarded filter cartridges also cause environmental pollution. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an air filtration device with a circulating filter element, which has good filtration effect, low filter element replacement frequency, effectively saves operating costs, and is environmentally friendly.

[0005] An air filtration device with filter cartridge circulation according to an embodiment of the present invention includes:

[0006] The body is equipped with an air guide chamber, an air inlet and an air outlet. A circulating fan is installed in the air guide chamber. The air inlet is located below the circulating fan and the air outlet is located above the circulating fan. A water collection tray is installed at the bottom of the air guide chamber and the air inlet is located above the water collection tray. The axis of the air inlet is parallel to the horizontal plane.

[0007] The front-end filter element is detachably connected to the body and is located between the circulating fan and the air inlet.

[0008] The cooling module is located between the front filter and the air inlet. The cooling module includes several heat exchange plates that are perpendicular to the horizontal plane. There is a cooling channel between each pair of adjacent heat exchange plates that faces the air inlet. The bottom of the heat exchange plates is located in the water collection tray, and the air inlet is directly opposite the middle of the heat exchange plates.

[0009] The rear filter element is connected to the main body and is located between the circulating fan and the air outlet.

[0010] In this embodiment, a guide vane is provided in the air guide chamber, and the guide vane is located between the air inlet and the cooling module.

[0011] In this embodiment, the horizontal projection of the heat exchange plate is in the shape of a cosine curve.

[0012] In this embodiment, the heat exchange plate is provided with several evenly distributed flow equalization ventilation holes in the middle.

[0013] In this embodiment, there are two air inlets, which are located on opposite sides of the cooling module.

[0014] In this embodiment, a front-end locking component is provided in the air guide chamber, and the front-end filter element is locked and connected to the front-end locking component.

[0015] In this embodiment, the front-end filter element includes a front-end frame, and a polyethylene filter and a self-cleaning filter both connected to the front-end frame. The polyethylene filter is located on the side of the self-cleaning filter closer to the air inlet.

[0016] In this embodiment, the self-cleaning filter is a photocatalytic filter, and an ultraviolet light-emitting module is provided in the air guide chamber, with the light-emitting surface of the ultraviolet light-emitting module facing the photocatalytic filter.

[0017] In this embodiment, the rear filter element includes a rear frame and a glass fiber filter, an ion exchange filter, and an activated carbon filter, all connected to the rear frame. The glass fiber filter is located on the side of the ion exchange filter away from the air outlet, and the activated carbon filter is located on the side of the ion exchange filter closer to the air outlet.

[0018] In this embodiment, a rear-end locking component is provided in the air guide chamber, and the rear-end filter element is locked and connected to the rear-end locking component.

[0019] The embodiments of this utility model have at least the following beneficial effects:

[0020] By placing front and rear filter elements on opposite sides of the circulating fan, multiple air filtration is achieved, resulting in excellent filtration efficiency, extended filter lifespan, reduced filter replacement frequency, lower operating costs, and reduced environmental pollution. Simultaneously, it effectively ensures consistent airflow speeds at both the front and rear filter elements, guaranteeing effective air circulation. With heat exchange fins vertically positioned and their bottoms located in a water collection tray, air is cooled and condensed as it passes through the fins. This condensate falls under gravity into the collection tray, effectively preventing condensate buildup inside the device and ensuring normal operation. Reducing the moisture carried by the air reaching the front-end filter significantly reduces the stickiness of impurities that accumulate and adhere to it, making it easier to remove impurities from the filter surface. This results in better cleaning performance and greater ease of cleaning, effectively extending the lifespan of the front-end filter. The filter can be recycled a high number of times after cleaning, effectively reducing operating costs and minimizing filter disposal. This is energy-saving and environmentally friendly. Dehumidification of the air is achieved by condensing moisture through heat exchange fins, further saving operating costs. Furthermore, the extension direction of the heat exchange fins is parallel to the axis of the air inlet, effectively reducing air resistance during filtration. This not only improves the efficiency of air filtration but also reduces noise during airflow. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a three-dimensional structural diagram of the air filtration device with filter cartridge circulation according to an embodiment of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the air filtration device with filter cartridge circulation according to an embodiment of the present utility model, viewed from another perspective.

[0024] Figure 3 This is a schematic diagram of the main structure of the air filtration device with filter cartridge circulation according to an embodiment of the present invention;

[0025] Figure 4 For along Figure 3 A schematic diagram of the cross-sectional structure of line A-A'.

[0026] Figure label:

[0027] 100 body, 110 air guide chamber, 120 air inlet, 130 air outlet, 140 circulating fan, 150 water collection tray, 160 guide plate, 170 front-end locking component, 180 ultraviolet light emission module, 190 rear-end locking component;

[0028] Front-end filter element 200, front-end frame 210, polyethylene filter screen 220, self-cleaning filter screen 230;

[0029] Cooling module 300, heat exchange fins 310, flow equalization ventilation holes 311;

[0030] The rear filter element is 400, the rear frame is 410, the glass fiber filter is 420, the ion exchange filter is 430, and the activated carbon filter is 440. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, if the wire sleeve or bracket is mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] With industrial development, the problem of impurities in the air has become increasingly apparent. Inhaling air contaminated with these impurities can negatively impact human health, and they can also disrupt production processes. Therefore, air purifiers are increasingly used in homes, offices, and industrial environments. Traditional air filtration systems typically employ a fan and disposable filter cartridges. While simple, this design places a heavy burden on the filter cartridges, resulting in less effective filtration. Frequent replacements are necessary to maintain performance, leading to high operating costs, and discarded cartridges pollute the environment. Furthermore, traditional air filtration systems have limitations in terms of filtration efficiency and energy consumption.

[0036] Therefore, there is an urgent need for a new type of air filtration device that can reduce the frequency of filter replacement while ensuring high-efficiency filtration, thereby improving the overall performance and operating cost of the device.

[0037] The following is for reference only. Figure 1 To be continued Figure 4 This invention describes an air filtration device with a circulating filter element according to an embodiment of the present invention. It has good filtration effect, low filter element replacement frequency, can effectively save operating costs, and is environmentally friendly.

[0038] Reference Figures 1 to 4 An air filtration device with filter cartridge circulation according to an embodiment of the present invention includes:

[0039] The body 100 includes an air guide chamber 110, an air inlet 120, and an air outlet 130. A circulating fan 140 connected to the body 100 is installed in the air guide chamber 110. The circulating fan 140 divides the air guide chamber 110 into an upper and lower distributed air outlet chamber and an air inlet chamber. The circulating fan 140 is horizontally positioned, with its rotation axis perpendicular to the horizontal plane. The circulating fan 140 drives the gas within the air guide chamber 110 to flow from bottom to top. The air inlet 120 is located near the circulating fan 140. Below the horizontal position of 0, the air outlet 130 is located above the horizontal position of the circulating fan 140. The air inlet 120 is located on the cavity wall of the air inlet chamber, and the air outlet 130 is located on the cavity wall of the air outlet chamber. The air inlet 120 and the air outlet 130 are used to connect the two ends of the air guide chamber 110 with the outside world. The bottom of the air guide chamber 110 is provided with a water collection plate 150. The air inlet 120 is located above the horizontal position of the water collection plate 150, and the axis of the air inlet 120 is parallel to the horizontal plane.

[0040] The front-end filter element 200 is detachably connected to the body 100. The front-end filter element 200 is located in the air guide chamber 110 and between the circulating fan 140 and the air inlet 120. The air guiding and filtering direction of the front-end filter element 200 is consistent with the air extraction direction of the circulating fan 140.

[0041] The cooling module 300 is located within the air guide chamber 110 and between the front filter element 200 and the air inlet 120. The cooling module 300 includes several heat exchange fins 310 evenly arranged and perpendicular to the horizontal plane. A cooling channel is provided between each pair of adjacent heat exchange fins 310, directly facing the air inlet 120. The air inlet 120 is directly opposite the entrance to the cooling channel, effectively reducing wind resistance, improving airflow efficiency, reducing noise, and enhancing the uniformity of air distribution within the air guide chamber 110. The bottom of the heat exchange fins 310 is located in a water collection tray 150. The accumulated moisture in the 50 can be used to cool the heat exchange plate 310, thereby effectively improving the cooling and condensation effect of moisture in the air. The air inlet 120 is directly opposite the middle of the heat exchange plate 310, that is, the air inlet 120 is located on one side of the middle of the heat exchange plate 310, which can effectively improve the contact effect between the air and the heat exchange plate 310, thereby improving the cooling effect. The heat exchange plate 310 can be connected to the water collection tray 150 or the body 100. When the air passes through the heat exchange plate 310, it is cooled and condensed. Under the action of gravity, the condensed water falls down the heat exchange plate 310 into the water collection tray 150.

[0042] The rear filter element 400 is connected inside the body 100. The rear filter element 400 is located in the air guide chamber 110 and between the circulating fan 140 and the air outlet 130. The air guiding and filtering direction of the rear filter element 400 is consistent with the air extraction direction of the circulating fan 140. Preferably, the rear filter element 400 is connected to the body 100 in a detachable manner, which facilitates the replacement of the rear filter element 400.

[0043] With the front-end filter element 200 and the rear-end filter element 400 respectively located on both sides of the circulating fan 140, multiple air filtration can be achieved, resulting in good filtration effect, extended filter element life, reduced filter element replacement frequency, lower operating costs, and reduced environmental pollution from waste filter elements. Simultaneously, it effectively ensures the airflow speed within the front-end filter element 200 and the rear-end filter element 400, effectively ensuring air filtration and circulation. The heat exchange fins 310 are set perpendicular to the horizontal plane, and the bottom of the heat exchange fins 310... Located in the water collection tray 150, air is cooled and condensed as it passes through the heat exchange fins 310. The condensate falls into the water collection tray 150 under gravity, effectively preventing condensate buildup inside the device and ensuring normal operation. This significantly reduces the moisture carried by the air reaching the front filter element 200, and significantly reduces the stickiness of impurities adhering to the front filter element 200, thus reducing the accumulation of stubborn impurities. This is achieved when the front filter element 200 is removed from the machine. When the body 100 is cleaned, it effectively removes impurities from the surface of the front-end filter element 200. The surface of the front-end filter element 200 can be cleaned by sweeping or blowing, resulting in good cleaning effect and ease of cleaning. This effectively extends the service life of the front-end filter element 200, and the filter element can be recycled a high number of times after cleaning, effectively reducing operating costs and minimizing filter element disposal. It is energy-saving and environmentally friendly. Dehumidification of the air is achieved by condensing moisture through the heat exchange fins 310, further saving operating costs. Furthermore, the extension direction of the heat exchange fins 310 is parallel to the axis of the air inlet 120, effectively reducing wind resistance during filtration. This not only improves the efficiency of the filtered airflow but also reduces noise during airflow. By positioning the air inlet 120 above the horizontal position of the water collection tray 150 and the circulating fan 140, the airflow path can be controlled to bypass the water collection tray 150, reducing the amount of moisture added to the air due to contact with the water collection tray 150.

[0044] The circulating fan 140 mainly includes a motor and an impeller. The impeller is connected to the motor, which drives the impeller to rotate, thereby creating airflow. The air inlet 120 and air outlet 130 can be equipped with metal filters to effectively isolate large particles of impurities, thus improving the operational stability of this air filtration device.

[0045] It is understood that a guide plate 160 is provided in the air guide chamber 110. The guide plate 160 is located between the air inlet 120 and the cooling module 300. Preferably, the guide plate 160 is located at the edge of the air inlet 120 away from the front filter element 200. The guide plate 160 is inclined from top to bottom towards the air inlet 120, that is, the guide plate 160 is inclined from bottom to top away from the air inlet 120.

[0046] During operation, air from the external environment enters the air guide chamber 110 through the air inlet 120. Under the guidance of the baffle 160, the air moves towards the cooling module 300 in a downward-to-upward inclined direction, which can significantly reduce the probability of the air moving downward towards the water collection plate 150 in the air guide chamber 110. This can effectively ensure the condensation and drying effect of the air after passing through the cooling module 300, and effectively ensure the air filtration effect.

[0047] It is understandable that the horizontal projection of the heat exchange plate 310 is in the shape of a cosine curve, that is, the horizontal projection of the heat exchange plate 310 is wavy. The heat exchange plate 310 can not only form a longitudinal airflow effect, but also a lateral airflow effect, thereby effectively improving the contact effect between the air and the heat exchange plate 310. The condensation effect of moisture in the air is good, and the cooling module 300 has a good condensation and drying effect on the air, which can effectively improve the air filtration effect.

[0048] It is understandable that the heat exchange plate 310 has several evenly distributed flow equalization ventilation holes 311 in the middle. The multiple flow equalization ventilation holes 311 form a grid structure in the middle of the heat exchange plate 310, and the wavy heat exchange plate 310 will have a lateral blocking effect on the air.

[0049] After air enters the air guide chamber 110 through the air inlet 120, some air directly reaches the surface of the heat exchange plate 310 and moves upward under the action of the circulating fan 140. Some air passes through the flow equalization ventilation hole 311 and reaches the surface of other heat exchange plates 310 and moves upward under the action of the circulating fan 140, which can form a good flow equalization effect, so that the air passing through the front filter element 200 and the rear filter element 400 is evenly distributed. That is, the air flow of each area of ​​the front filter element 200 and the rear filter element 400 is highly consistent, which can effectively improve the effective utilization rate of the front filter element 200 and the rear filter element 400, avoid the concentrated airflow that causes a sharp drop in the filtration performance of some areas of the filter element and affects the effective service life, effectively save operating costs, and effectively improve the recycling effect of the front filter element 200 after cleaning.

[0050] Understandably, there are two air inlets 120, located on opposite sides of the cooling module 300. Each air inlet 120 faces the cooling channel. The two air inlets 120 effectively increase the airflow of this air filtration device and further improve the uniformity of air distribution in the air guide chamber 110, thereby effectively improving the overall air filtration efficiency. Preferably, there are also two air outlets 130, located on opposite sides above the rear filter element 400.

[0051] Understandably, the air guide chamber 110 is equipped with a front-end locking component 170 connected to the body 100. The front-end filter element 200 is connected to the front-end locking component 170 for easy removal and installation of the front-end filter element 200, thereby improving the efficiency of cleaning the front-end filter element 200. Preferably, the front-end locking component 170 can be configured as two front-end positioning frames distributed vertically, with a locking channel parallel to the horizontal plane formed between the two front-end positioning frames. The front-end filter element 200 can be positioned by inserting it into the locking channel.

[0052] It is understood that the front-end filter element 200 includes a front-end frame 210, and a polyethylene filter 220 and a self-cleaning filter 230 connected to the front-end frame 210. The polyethylene filter 220 is located on the side of the self-cleaning filter 230 closer to the air inlet 120. The polyethylene filter 220 can perform coarse filtration of impurities in the air. Large particles of impurities are isolated on the surface of the polyethylene filter 220 away from the self-cleaning filter 230. When disassembling the front-end filter element 200 for cleaning, this surface of the polyethylene filter 220 is usually cleaned by blowing or other methods, which is convenient for cleaning.

[0053] It is understood that the self-cleaning filter 230 is a photocatalytic filter. An ultraviolet (UV) light-emitting module 180, connected to the main body 100, is installed inside the air guide chamber 110. The light-emitting surface of the UV light-emitting module 180 faces the photocatalytic filter. The UV light emitted by the UV light-emitting module 180 can catalyze the photocatalyst, thereby improving the decomposition effect of the photocatalytic filter on harmful substances. The self-cleaning filter 230 can be configured as a metal filter with a titanium dioxide coating on its surface. The UV light-emitting module 180 includes a UV lamp and a reflector.

[0054] It is understood that the rear filter element 400 includes a rear frame 410, and a glass fiber filter 420, an ion exchange filter 430 and an activated carbon filter 440 connected to the rear frame 410. The glass fiber filter 420 is located on the side of the ion exchange filter 430 away from the air outlet 130, and the activated carbon filter 440 is located on the side of the ion exchange filter 430 closer to the air outlet 130.

[0055] Fiberglass filter 420, also known as glass fiber filter, has high filtration precision and efficiency; ion exchange filter 430 refers to a filter structure made of ion exchange resin, which can effectively remove harmful gases from the air; activated carbon filter 440 can effectively remove VOCs, formaldehyde, odors, etc., and can effectively improve air safety.

[0056] Understandably, the air guide chamber 110 is equipped with a rear-end locking component 190 connected to the body 100. The rear-end filter element 400 is connected to the rear-end locking component 190 through a locking mechanism. That is, the rear-end filter element 400 is locked to the body 100 through the rear-end locking component 190. The rear-end locking component 190 facilitates the installation and removal of the rear-end filter element 400 and improves the efficiency of cleaning the rear-end filter element 400.

[0057] Preferably, the rear-end positioning component 190 can be configured as two rear-end positioning frames distributed vertically, with a positioning channel parallel to the horizontal plane formed between the two rear-end positioning frames. The rear-end filter element 400 can be positioned by inserting it into the positioning channel.

[0058] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air filtration device with a filter cartridge circulation system, characterized in that, include: The body (100) is provided with an air guide chamber (110), an air inlet (120) and an air outlet (130). A circulating fan (140) is provided in the air guide chamber (110). The air inlet (120) is located below the circulating fan (140), and the air outlet (130) is located above the circulating fan (140). A water collection tray (150) is provided at the bottom of the air guide chamber (110), and the air inlet (120) is located above the water collection tray (150). The axis of the air inlet (120) is parallel to the horizontal plane. A front-end filter element (200) is detachably connected to the body (100), and the front-end filter element (200) is located between the circulating fan (140) and the air inlet (120); A cooling module (300) is disposed between the front filter element (200) and the air inlet (120). The cooling module (300) includes several heat exchange plates (310) that are perpendicular to the horizontal plane. A cooling channel is provided between each pair of adjacent heat exchange plates (310) facing the air inlet (120). The bottom of the heat exchange plate (310) is located in the water collection tray (150), and the air inlet (120) is directly opposite the middle of the heat exchange plate (310). A rear filter element (400) is connected to the body (100) and is located between the circulating fan (140) and the air outlet (130).

2. The air filtration device with filter cartridge circulation according to claim 1, characterized in that, The air guide chamber (110) is provided with a guide plate (160), which is located between the air inlet (120) and the cooling module (300).

3. The air filtration device with filter cartridge circulation according to claim 1, characterized in that, The horizontal projection of the heat exchange plate (310) is in the shape of a cosine curve.

4. An air filtration device with filter cartridge circulation according to claim 3, characterized in that, The heat exchange plate (310) is provided with several evenly distributed flow equalization ventilation holes (311) in the middle.

5. An air filtration device with filter cartridge circulation according to claim 4, characterized in that, There are two air inlets (120), which are located on opposite sides of the cooling module (300).

6. An air filtration device with filter cartridge circulation according to claim 1, characterized in that, The air guide chamber (110) is provided with a front-end locking component (170), and the front-end filter element (200) is locked and connected to the front-end locking component (170).

7. An air filtration device with filter cartridge circulation according to claim 1, characterized in that, The front-end filter element (200) includes a front-end frame (210), and a polyethylene filter (220) and a self-cleaning filter (230) both connected to the front-end frame (210). The polyethylene filter (220) is located on the side of the self-cleaning filter (230) closer to the air inlet (120).

8. An air filtration device with filter cartridge circulation according to claim 7, characterized in that, The self-cleaning filter (230) is a photocatalytic filter, and an ultraviolet light-emitting module (180) is provided in the air guide chamber (110), with the light-emitting surface of the ultraviolet light-emitting module (180) facing the photocatalytic filter.

9. An air filtration device with filter cartridge circulation according to claim 1, characterized in that, The rear filter element (400) includes a rear frame (410) and a glass fiber filter (420), an ion exchange filter (430) and an activated carbon filter (440) all connected to the rear frame (410). The glass fiber filter (420) is located on the side of the ion exchange filter (430) away from the air outlet (130), and the activated carbon filter (440) is located on the side of the ion exchange filter (430) closer to the air outlet (130).

10. An air filtration device with filter cartridge circulation according to claim 1, characterized in that, The air guide chamber (110) is provided with a rear end locking component (190), and the rear end filter element (400) is locked and connected to the rear end locking component (190).

Images