Filter device with multiple filter layers for FFU (fan filter unit)

Abstract

The utility model discloses a filtering device with multiple filtering layers for an FFU fan, and relates to the technical field of filtering devices. The fan comprises a fan body, an air inlet cavity is fixedly connected to the top face of the fan body, a filter cavity is formed in the fan body, a first filter element and a second filter element are arranged in the filter cavity, plugging assemblies are arranged in the filter cavity and located on the upper sides and the lower sides of the first filter element and the second filter element, and each plugging assembly comprises a sealing disc. Wherein one sealing disc corresponds to and is matched with a cavity opening of the air inlet cavity, the other sealing disc corresponds to and is matched with the air outlet end of the fan body, and an ozone generator is arranged on the upper portion of the inner side wall of the filtering cavity. According to the air purifier, tiny particles such as bacteria, viruses and dust mites in air can be filtered out, the bacteria on the first filter element and the second filter element can be killed, and the cleanliness of the filtered air is prevented from being affected.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, specifically to a filtration device for an FFU fan with multiple filtration layers. Background Technology

[0002] Fan filter units, also known as FFUs, can be categorized by name as: FFU fan filter units, fan filter modules, fan purification units, purification air supply units, clean air supply systems, etc. A fan filter unit is a self-powered air supply and filtration device, a modular terminal air supply device with filtration function.

[0003] Existing FFU (Fan Filter Unit) filter devices do not have the function of disinfecting and sterilizing the internal filter element during use. This may lead to the growth of a large number of bacteria in the filter element during use. Since the filter element is replaced regularly, if no treatment is done during this period, it will affect the cleanliness of the filtered air. To address the above problems, the inventors propose an FFU filter device with multiple filtration layers to solve the above problems. Utility Model Content

[0004] To address the problem that existing FFU (Fan Filter Unit) blower filtration devices cannot disinfect and sterilize the internal filter element during use, the purpose of this invention is to provide an FFU blower filtration device with multiple filtration layers.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a filtration device for an FFU fan with multiple filtration layers, comprising a fan body, an air inlet chamber fixedly connected to the top surface of the fan body, a filtration chamber provided inside the fan body, a first filter element and a second filter element provided inside the filtration chamber, and sealing components provided inside the filtration chamber on both the upper and lower sides of the first and second filter elements, the sealing components including sealing discs, one of the sealing discs corresponding to and cooperating with the opening of the air inlet chamber, and the other sealing disc corresponding to and cooperating with the air outlet of the fan body, an ozone generator provided on the upper part of the inner sidewall of the filtration chamber, and a detachable opening and closing cover provided on the sidewall of the filtration chamber.

[0006] Preferably, a dustproof screen is detachably provided at the port of the air inlet cavity, a turbine fan is provided inside the air inlet cavity, a base is provided on the side wall of the turbine fan, and the base is fixedly connected to the inner wall of the air inlet cavity. The dustproof screen is used to pre-filter large particles. The turbine fan is installed through the base, and the dustproof screen can be installed at the port of the air inlet cavity by fastening screws.

[0007] Preferably, the top surface of the sealing disc is made of rubber, and the size of the sealing disc is larger than the opening size of the air inlet cavity. A guide rod is fixedly connected to the top surface of the sealing disc, and a guide cylinder is embedded and fixedly connected to the inner top wall of the filter cavity. The guide rod and the guide cylinder are correspondingly and slidably connected. A spring is arranged around the side wall of the guide rod, the bottom end of the spring is fixedly connected to the top surface of the sealing disc, and the top end of the spring is fixedly connected to the bottom surface of the guide cylinder. A filter element limiting plate is fixedly connected to the inner side wall of the filter cavity. The filter element limiting plate is used to prevent the first and second filter elements from shifting after installation. The first and second filter elements are used to capture smaller particles and pollutants and are made of finer fiber materials. The system filters out bacteria, viruses, dust mites, and other tiny particles from the air. However, the first and second filters themselves still carry bacteria after filtration. Failure to kill these bacteria will affect the cleanliness of the filtered air. To kill these bacteria, the air pump is activated, inflating the vertical cylinder through the pump's connecting pipe. This causes the piston to lift the lifting rod, which in turn pushes the sealing disc upwards via the top plate until it is in close contact with the bottom surface of the air inlet chamber, thus sealing the cylinder. At this point, the spring is compressed. Similarly, the air outlet of the fan body is sealed using the same process. Finally, the ozone generator is activated to diffuse ozone, achieving disinfection and sterilization.

[0008] Preferably, a top plate is fixedly connected to the center of the bottom surface of the sealing disc, a lifting rod is fixedly connected to the bottom surface of the top plate, a piston is fixedly connected to the bottom end of the lifting rod, a vertical cylinder is provided below the sealing disc, the piston is located inside the opening of the vertical cylinder and cooperates with the vertical cylinder, the lifting rod is slidably connected to the vertical cylinder, when the air pump connecting pipe is not filling the vertical cylinder, the sealing disc is separated from the end face of the air inlet cavity under the action of the spring to allow air circulation, the bottom surface of the vertical cylinder is inserted and fixedly connected to the air pump connecting pipe, a horizontal plate is fixedly connected to the side wall of the vertical cylinder, the end face of the horizontal plate is fixedly connected to the inner wall of the filter cavity, the air pump is provided inside the fan body, and air can be filled and discharged into the vertical cylinder through the air pump connecting pipe, the vertical cylinder is installed through the horizontal plate.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: the first and second filter elements can capture smaller particles and pollutants, filtering out tiny particles such as bacteria, viruses, and dust mites in the air. After filtration, the filter chamber can be sealed by the sealing disc, and ozone can be diffused by the ozone generator to achieve disinfection and sterilization. This kills bacteria on the first and second filter elements, thus avoiding affecting the cleanliness of the filtered air. Attached Figure Description

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the internal structure of the main body of the fan of this utility model.

[0013] Figure 3 This is a schematic diagram of another internal structure of the fan body of this utility model.

[0014] Figure 4 This is an enlarged view of section A of this utility model.

[0015] In the diagram: 1. Fan body; 2. Air inlet chamber; 3. Dustproof net; 4. Turbine fan; 5. Sealing assembly; 6. Filter chamber; 7. Filter element limiting plate; 8. First filter element; 9. Second filter element; 10. Horizontal plate; 11. Vertical cylinder; 12. Lifting rod; 13. Top plate; 14. Piston; 15. Air pump connecting pipe; 16. Sealing plate; 17. Guide rod; 18. Guide cylinder; 19. Spring; 20. Ozone generator; 21. Opening and closing cover. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Figure 1-4 As shown, this utility model provides a filtration device for an FFU fan with multiple filtration layers, including a fan body 1, an air inlet chamber 2 fixedly connected to the top surface of the fan body 1, a filter chamber 6 inside the fan body 1, a first filter element 8 and a second filter element 9 inside the filter chamber 6, and a sealing assembly 5 inside the filter chamber 6 on both the upper and lower sides of the first filter element 8 and the second filter element 9. The sealing assembly 5 includes a sealing plate 16, one of which corresponds to and cooperates with the opening of the air inlet chamber 2, and the other of which corresponds to and cooperates with the air outlet of the fan body 1. An ozone generator 20 is provided on the upper part of the inner side wall of the filter chamber 6, and an opening and closing cover 21 is detachably provided on the side wall of the filter chamber 6.

[0018] The port of the air inlet chamber 2 is detachably equipped with a dustproof net 3. A turbine fan 4 is installed inside the air inlet chamber 2. A base is installed on the side wall of the turbine fan 4, and the base is fixedly connected to the inner wall of the air inlet chamber 2.

[0019] By adopting the above technical solution, the dustproof net 3 is used to pre-filter large particles. The turbine fan 4 is installed through the base, and the dustproof net 3 can be installed at the port of the air inlet chamber 2 by fastening screws.

[0020] The top surface of the sealing disc 16 is made of rubber. The size of the sealing disc 16 is larger than the size of the air inlet cavity 2. A guide rod 17 is fixedly connected to the top surface of the sealing disc 16. A guide cylinder 18 is embedded and fixedly connected to the inner top wall of the filter cavity 6. The guide rod 17 and the guide cylinder 18 correspond to each other and are slidably connected. A spring 19 is arranged around the side wall of the guide rod 17. The bottom end of the spring 19 is fixedly connected to the top surface of the sealing disc 16, and the top end of the spring 19 is fixedly connected to the bottom surface of the guide cylinder 18.

[0021] By adopting the above technical solution, a filter element limiting plate 7 is fixedly connected to the inner wall of the filter chamber 6. The filter element limiting plate 7 is used to prevent the first filter element 8 and the second filter element 9 from shifting after installation. The first filter element 8 and the second filter element 9 are used to capture smaller particles and pollutants. They are made of fine fiber materials and can filter out bacteria, viruses, dust mites and other tiny particles in the air. After filtration, the first filter element 8 and the second filter element 9 will carry bacteria themselves. If they are not disinfected, it will affect the cleanliness of the filtered air. When it is necessary to disinfect the first filter element 8 and the second filter element 9... When bacteria on core 9 are killed, the air pump is started, and air is pumped into the vertical cylinder 11 through the air pump connecting pipe 15. This causes piston 14 to drive lifting rod 12 to rise, which in turn pushes sealing plate 16 upward through top plate 13 until sealing plate 16 is in close contact with the bottom surface of air inlet chamber 2, thus sealing. At this time, spring 19 is in a compressed state. Similarly, the air outlet of fan body 1 is also sealed through the above operation. Then, ozone generator 20 is turned on to diffuse ozone, thereby achieving disinfection and sterilization.

[0022] A top plate 13 is fixedly connected to the center of the bottom surface of the sealing disc 16. A lifting rod 12 is fixedly connected to the bottom surface of the top plate 13. A piston 14 is fixedly connected to the bottom end of the lifting rod 12. A vertical cylinder 11 is provided below the sealing disc 16. The piston 14 is located inside the opening of the vertical cylinder 11 and cooperates with the vertical cylinder 11. The lifting rod 12 is slidably connected to the vertical cylinder 11.

[0023] By adopting the above technical solution, when the air pump connecting pipe 15 is not filling the vertical cylinder 11 with air, the sealing plate 16 is separated from the end face of the air inlet chamber 2 under the action of the spring 19, so that air can circulate.

[0024] A charging / discharging pump connecting pipe 15 is inserted and fixedly connected to the bottom surface of the vertical cylinder 11, and a horizontal plate 10 is fixedly connected to the side wall of the vertical cylinder 11. The end face of the horizontal plate 10 is fixedly connected to the inner wall of the filter chamber 6.

[0025] By adopting the above technical solution, the fan body 1 is equipped with an air pump, and air can be charged and discharged into the vertical cylinder 11 through the air pump connecting pipe 15. The vertical cylinder 11 is installed through the horizontal plate 10.

[0026] Working principle: When this utility model is in use, the dustproof net 3 can play a pre-filtration role to filter large particles. The first filter element 8 and the second filter element 9 are made of fine fiber material, which can capture smaller particles and pollutants, thereby filtering out bacteria, viruses, dust mites and other tiny particles in the air.

[0027] When it is necessary to kill bacteria on the first filter element 8 and the second filter element 9, the air pump is started, and air is pumped into the vertical cylinder 11 through the air pump connecting pipe 15. This causes the piston 14 to drive the lifting rod 12 to rise, which in turn pushes the sealing plate 16 upward through the top plate 13 until the sealing plate 16 is in close contact with the bottom surface of the air inlet chamber 2, thus sealing the cylinder. At this time, the spring 19 is in a compressed state. Similarly, the air outlet of the blower body 1 is also sealed through the above operation. Then, the ozone generator 20 is turned on to diffuse ozone, thereby achieving the effect of disinfection and sterilization.

[0028] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A filtration device for an FFU fan with multiple filtration layers, comprising a fan body (1), characterized in that: An air inlet chamber (2) is fixedly connected to the top surface of the fan body (1). A filter chamber (6) is provided inside the fan body (1). A first filter element (8) and a second filter element (9) are provided inside the filter chamber (6). A sealing assembly (5) is provided inside the filter chamber (6) and on both the upper and lower sides of the first filter element (8) and the second filter element (9). The sealing assembly (5) includes a sealing disc (16). One of the sealing discs (16) corresponds to and cooperates with the opening of the air inlet chamber (2). The other sealing disc (16) corresponds to and cooperates with the air outlet of the fan body (1). An ozone generator (20) is provided on the upper part of the inner side wall of the filter chamber (6). An opening and closing cover (21) is detachably provided on the side wall of the filter chamber (6).

2. The filtration device for an FFU fan with multiple filtration layers as described in claim 1, characterized in that, The port of the air inlet cavity (2) is detachably equipped with a dustproof net (3), and a turbine fan (4) is installed inside the cavity of the air inlet cavity (2).

3. The filtration device for an FFU fan with multiple filtration layers as described in claim 2, characterized in that, The side wall of the turbine fan (4) is provided with a base, which is fixedly connected to the inner wall of the air inlet cavity (2).

4. The filtration device for an FFU fan with multiple filtration layers as described in claim 1, characterized in that, The top surface of the sealing disc (16) is made of rubber, and the size of the sealing disc (16) is larger than the size of the air inlet cavity (2).

5. A filter device for an FFU fan with multiple filter layers as described in claim 1, characterized in that, A top plate (13) is fixedly connected to the middle of the bottom surface of the sealing disc (16), a lifting rod (12) is fixedly connected to the bottom surface of the top plate (13), and a piston (14) is fixedly connected to the bottom end of the lifting rod (12).

6. The filtration device for an FFU fan with multiple filtration layers as described in claim 5, characterized in that, Below the sealing disc (16) is a vertical cylinder (11), the piston (14) is located inside the opening of the vertical cylinder (11), and the piston (14) cooperates with the vertical cylinder (11). The lifting rod (12) is slidably connected to the vertical cylinder (11).

7. A filter device for an FFU fan with multiple filter layers as described in claim 6, characterized in that, The bottom surface of the vertical cylinder (11) is fixedly connected to the air pump connecting pipe (15), and the side wall of the vertical cylinder (11) is fixedly connected to the horizontal plate (10), and the end face of the horizontal plate (10) is fixedly connected to the inner wall of the filter chamber (6).

8. A filter device for an FFU fan with multiple filter layers as described in claim 1, characterized in that, A guide rod (17) is fixedly connected to the top surface of the sealing disc (16), and a guide cylinder (18) is fixedly connected to the inner top wall of the filter chamber (6). The guide rod (17) and the guide cylinder (18) are corresponding to and slidably connected. A spring (19) is arranged around the side wall of the guide rod (17). The bottom end of the spring (19) is fixedly connected to the top surface of the sealing disc (16), and the top end of the spring (19) is fixedly connected to the bottom surface of the guide cylinder (18).

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