Box-type medium-efficiency air filter

Abstract

The utility model discloses a box-type medium-efficiency air filter which comprises a mounting plate, the front surface of the mounting plate is fixedly connected with a pretreatment box, the front surface of the mounting plate is fixedly connected with a filter box, the output end of the pretreatment box is fixedly communicated with a conveying sleeve, and the pretreatment box is communicated with the filter box through the conveying sleeve; and the front surface of the pretreatment box is fixedly communicated with a blowback dust discharge switch valve. According to the device, the primary-effect filter plate, the medium-effect adsorption filter plate and the activated carbon fiber filter plate work cooperatively in sequence, air can be efficiently purified, the air quality can be comprehensively improved, diversified environment requirements such as electronic workshops, hospitals and other places with high air cleanliness requirements can be met, and by closing the air inlet and exhaust valve and starting the blowback air pump, the air purification effect can be improved. High-pressure gas is used for blowback from the back face of the filter plate, and the blowback dust discharging switch valve is matched for discharging dust, so that the performance of the filter plate is recovered, the manual maintenance cost and the replacement frequency are greatly reduced, and continuous and stable operation of the filter is ensured.

Description

Technical Field

[0001] This utility model relates to the field of air filters, and in particular to a box-type medium-efficiency air filter. Background Technology

[0002] Medium-efficiency air filters are mainly used in central air conditioning and centralized air supply systems. They can be used as primary filters in air conditioning systems to protect the next stage filters and the system itself. In places where the requirements for air purification cleanliness are not strict, air treated by medium-efficiency air filters can be directly delivered to users. Medium-efficiency air filters are widely used in central air conditioning ventilation systems, pharmaceuticals, hospitals, electronics, food and other industrial purification applications. Medium-efficiency air filters can also be used as pre-filters for high-efficiency air filters to reduce the load on high-efficiency air filters and extend their service life.

[0003] In industrial production, fine particulate pollutants in the air, including dust, pollen, bacteria, smoke particles, and volatile organic compounds, can have a serious negative impact on product quality, leading to a decrease in product qualification rates. At the same time, poor air quality can also reduce people's work efficiency and comfort, posing a potential threat to human health. In addition, during long-term use, filter media is prone to clogging, which increases airflow resistance, reduces filtration efficiency, increases fan energy consumption, and requires frequent filter media replacement. To address these issues, we propose a box-type medium-efficiency air filter. Utility Model Content

[0004] The purpose of this invention is to provide a box-type medium-efficiency air filter to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A box-type medium-efficiency air filter includes a mounting plate. A pretreatment box and a filter box are fixedly connected to the front of the mounting plate. A conveying sleeve is fixedly connected to the output end of the pretreatment box. The pretreatment box is connected to the filter box via the conveying sleeve. A back-flushing dust discharge switch valve is fixedly connected to the front of the pretreatment box. An air inlet valve is fixedly connected to the left side of the pretreatment box. An air inlet pipe is fixedly connected to the left side of the air inlet valve. An exhaust valve is fixedly connected to the output end of the filter box. An exhaust pipe is fixedly connected to the right side of the exhaust valve. A primary filter plate, a medium-efficiency adsorption filter plate, and an activated carbon fiber filter plate are snapped onto the inner wall of the filter box. A sealing groove is formed on the front of the filter box. A sealing plate is snapped onto the inner wall of the sealing groove. A back-flushing air pump is fixedly connected to the left side of the filter box. A high-pressure pipe is fixedly connected to the output end of the back-flushing air pump. The end of the high-pressure pipe away from the back-flushing air pump is connected to the filter box.

[0007] In a further embodiment, two mounting blocks are fixedly connected to both the left and right sides of the mounting plate, and each mounting block has a fixing pin threaded onto its front side.

[0008] In a further embodiment, two grooves are formed on the back of the mounting plate, and a buffer pad is fixedly connected to the inner wall of each groove.

[0009] In a further embodiment, the filter box has an inspection port on the front, and an inspection plate is fixedly connected to the front of the inspection port by bolts.

[0010] In a further embodiment, the bottom surface of the backflush pump is fixedly connected to two support blocks, the right side of each support block is fixedly connected to the left side of the filter box, and a set of heat dissipation grooves are provided on the left side of the backflush pump.

[0011] In a further embodiment, a potential base is fixedly connected to the right side of the pretreatment box, and a set of status indicator lights is fixedly connected to the right side of the potential base.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device utilizes a pre-filter, a medium-efficiency adsorption filter, and an activated carbon fiber filter to work in tandem, efficiently purifying the air and comprehensively improving air quality to meet diverse environmental needs, such as those in electronics workshops and hospitals where high air cleanliness is required. By closing the inlet and outlet valves and activating the backflush pump, high-pressure gas is used to backflush the filter plates from the back, along with the dust removal valve to expel dust, restoring the filter plates' performance. This significantly reduces manual maintenance costs and replacement frequency, ensuring continuous and stable filter operation, minimizing performance degradation caused by filter media clogging, and maintaining consistently high air filtration capabilities, providing users with stable and reliable air purification services. Attached Figure Description

[0014] Figure 1 This is a left-view three-dimensional structural diagram of a box-type medium-efficiency air filter.

[0015] Figure 2 This is a right-view three-dimensional structural diagram of a box-type medium-efficiency air filter.

[0016] Figure 3 This is a rear-view three-dimensional structural diagram of a box-type medium-efficiency air filter.

[0017] Figure 4 This is a side sectional view of the filter box in a box-type medium-efficiency air filter.

[0018] In the diagram: 1. Mounting plate; 2. Pretreatment box; 3. Filter box; 4. Conveying sleeve; 5. Inspection port; 6. Inspection plate; 7. Backflush air pump; 8. Support block; 9. Backflush dust removal switch valve; 10. Inlet valve; 11. Inlet pipe; 12. Exhaust valve; 13. Exhaust pipe; 14. Heat dissipation groove; 15. High-pressure pipe; 16. Potential base; 17. Status indicator light; 18. Groove; 19. Buffer pad; 20. Mounting block; 21. Fixing pin; 22. Sealing groove; 23. Sealing plate; 24. Activated carbon fiber filter plate; 25. Medium-efficiency adsorption filter plate; 26. Primary filter plate. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] 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.

[0022] Please see Figure 1-4This utility model discloses a box-type medium-efficiency air filter, comprising a mounting plate 1, a pretreatment box 2 fixedly connected to the front of the mounting plate 1, a filter box 3 fixedly connected to the front of the mounting plate 1, a conveying sleeve 4 fixedly connected to the output end of the pretreatment box 2, the pretreatment box 2 being connected to the filter box 3 via the conveying sleeve 4, a back-flushing dust removal switch valve 9 fixedly connected to the front of the pretreatment box 2, an air inlet valve 10 fixedly connected to the left side of the pretreatment box 2, an air inlet pipe 11 fixedly connected to the left side of the air inlet valve 10, an exhaust valve 12 fixedly connected to the output end of the filter box 3, an exhaust pipe 13 fixedly connected to the right side of the exhaust valve 12, a primary filter plate 26 snapped into the inner wall of the filter box 3, a medium-efficiency adsorption filter plate 25 snapped into the inner wall of the filter box 3, an activated carbon fiber filter plate 24 snapped into the inner wall of the filter box 3, and a sealing groove 22 formed on the front of the filter box 3. A sealing plate 23 is snapped into the inner wall of the sealing groove 22. A backflush air pump 7 is fixedly connected to the left side of the filter box 3. A high-pressure pipe 15 is fixedly connected to the output end of the backflush air pump 7. The end of the high-pressure pipe 15 away from the backflush air pump 7 is connected to the filter box 3. After a period of use, the air inlet valve 10 and the air outlet valve 12 are closed, and the backflush air pump 7 is started to generate high-pressure gas, which enters the filter box 3 through the high-pressure pipe 15. The high-pressure gas blows from the back of the filter plate to the front, causing the dust particles attached to the surface of the filter plate to fall off and fall into the pretreatment box 2. The backflush dust discharge switch valve 9 is opened during the backflush process to discharge the dust accumulated in the pretreatment box 2 to the outside, completing the entire backflush cleaning process, restoring the performance of the filter plate, greatly reducing the cost of manual maintenance and the frequency of replacement, ensuring the continuous and stable operation of the filter, and reducing the performance degradation caused by filter media clogging.

[0023] Two mounting blocks 20 are fixedly connected to the left and right sides of the mounting plate 1. Each mounting block 20 has a fixing pin 21 threadedly connected to its front side. The mounting blocks 20 facilitate the installation of equipment by the staff. Two grooves 18 are opened on the back of the mounting plate 1. A buffer pad 19 is fixedly connected to the inner wall of each groove 18. The buffer pad 19 improves the stability of the equipment. An inspection port 5 is opened on the front of the filter box 3. An inspection plate 6 is fixedly connected to the front of the inspection port 5 by bolts. The inspection port 5 facilitates the maintenance of the equipment by the staff.

[0024] Two support blocks 8 are fixedly connected to the bottom of the backflush air pump 7. The right side of each support block 8 is fixedly connected to the left side of the filter box 3. A set of heat dissipation slots 14 are opened on the left side of the backflush air pump 7. The support blocks 8 can support and fix the backflush air pump 7. A potential base 16 is fixedly connected to the right side of the pretreatment box 2. A set of status indicator lights 17 is fixedly connected to the right side of the potential base 16. The status indicator lights 17 can help the staff understand the operating status of the equipment.

[0025] The working principle of this utility model is as follows:

[0026] In use, first place the equipment at the location of use and connect it to the power supply. Air enters through the inlet pipe 11. After the inlet valve 10 and exhaust valve 12 are opened, the air flows into the pretreatment box 2. Before entering the filter box 3, the air in the pretreatment box 2 undergoes preliminary treatment. The pretreated air enters the filter box 3 from the pretreatment box 2 through the conveyor sleeve 4. After entering the filter box 3, the air undergoes three stages of filtration: primary filter plate 26, medium-efficiency adsorption filter plate 25, and activated carbon fiber filter plate 24. The air is then discharged through the exhaust pipe 1. 3. After the gas is discharged, close the inlet valve 10 and the exhaust valve 12, and start the back-flushing air pump 7 to generate high-pressure gas. The high-pressure gas enters the filter box 3 through the high-pressure pipe 15. The high-pressure gas blows from the back of the filter plate to the front, causing the dust particles attached to the surface of the filter plate to fall off and into the pretreatment box 2. The back-flushing dust discharge switch valve 9 opens during the back-flushing process, discharging the dust accumulated in the pretreatment box 2 to the outside, completing the entire back-flushing cleaning process, restoring the filter plate to a better filtration performance state, and ensuring that the filter can work continuously and stably.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A box-type medium-efficiency air filter, characterized in that: Includes a mounting plate (1), a pretreatment box (2) fixedly connected to the front of the mounting plate (1), a filter box (3) fixedly connected to the front of the mounting plate (1), a conveying sleeve (4) fixedly connected to the output end of the pretreatment box (2), the pretreatment box (2) being connected to the filter box (3) via the conveying sleeve (4), a back-flushing dust removal switch valve (9) fixedly connected to the front of the pretreatment box (2), an air inlet valve (10) fixedly connected to the left side of the pretreatment box (2), an air inlet pipe (11) fixedly connected to the left side of the air inlet valve (10), and an exhaust valve (12) fixedly connected to the output end of the filter box (3). The filter box (3) is fixedly connected to the right side of the filter box (3) with an exhaust pipe (13). The filter box (3) is fitted with a primary filter plate (26), a medium-efficiency adsorption filter plate (25), and an activated carbon fiber filter plate (24). The filter box (3) has a sealing groove (22) on the front side and a sealing plate (23) on the inner wall of the sealing groove (22). The filter box (3) is fixedly connected to the left side of the filter box (3). The output end of the backflush pump (7) is fixedly connected to a high-pressure pipe (15). The end of the high-pressure pipe (15) away from the backflush pump (7) is connected to the filter box (3).

2. A box-type medium-efficiency air filter according to claim 1, characterized in that: Two mounting blocks (20) are fixedly connected to the left side and the right side of the mounting plate (1), and a fixing pin (21) is threadedly connected to the front of each mounting block (20).

3. A box-type medium-efficiency air filter according to claim 1, characterized in that: The mounting plate (1) has two grooves (18) on its back side, and a buffer pad (19) is fixedly connected to the inner wall of each groove (18).

4. A box-type medium-efficiency air filter according to claim 1, characterized in that: The filter box (3) has an inspection port (5) on the front, and an inspection plate (6) is fixedly connected to the front of the inspection port (5) by bolts.

5. A box-type medium-efficiency air filter according to claim 1, characterized in that: The bottom surface of the backflush pump (7) is fixedly connected to two support blocks (8), and the right side of each support block (8) is fixedly connected to the left side of the filter box (3). A set of heat dissipation grooves (14) are provided on the left side of the backflush pump (7).

6. A box-type medium-efficiency air filter according to claim 1, characterized in that: A potential base (16) is fixedly connected to the right side of the pretreatment box (2), and a set of status indicator lights (17) is fixedly connected to the right side of the potential base (16).

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