Multi-filtering device for air

Abstract

The utility model relates to a multi-filtering device for air. A filter element is mounted at the upper part in the filter box body; an air inlet is formed in the lower portion of one side of the filtering box body, and a double-filtering structure is arranged on the lower portion in the filtering box body and comprises a filtering cylinder and an annular filtering net; the inner side of the bottom of the filter cartridge is connected with an annular baffle, and vent holes are formed in the side edge of the bottom of the filter cartridge; the annular filter screen is arranged in the filter cartridge, the top of the annular filter screen is connected with the horizontal filter screen, and the outer bottom of the annular filter screen is connected with the annular connecting plate; the bottom of the annular baffle is connected with a funnel-shaped collecting cylinder. The air purifier has the advantages that a double-filtering structure and the filter element are mounted in the filtering box body to form a multi-filtering structure, air is filtered by the filter element after passing through the double-filtering structure, pollutants with different particle sizes are subjected to multi-filtering, and the filtering effect is improved; large-particle pollutants are filtered through the filter element after being filtered and removed, so that the filter element is not easy to block, the cleaning and replacing frequency of the filter element is reduced, and the filtering cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to air filter equipment technical field, concretely relates to a kind of air multiple filtering device. BACKGROUND

[0002] Air filter equipment refers to the product that can filter out air pollutants, effectively improve air cleanliness, can filter air suspended particulate, asbestos and other pollutants, can significantly reduce solid dust in air. Some workshops produce a large amount of dust and other pollutants during production, in order to improve the working environment of workshop, enterprises usually equipped with air purification equipment.

[0003] The existing large industrial air filter equipment usually installs filter core in the filter box, and the air is discharged after being filtered by the filter core once. The pollutants of different particle sizes are not subjected to multiple filtration, the filtering effect is not ideal, and the large particle pollutants are more likely to block the filter core. The filter core cleaning and replacement frequency is high, and the filtering cost is high. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide an air multiple filtering device, which can solve the problems of the prior art, such as air being discharged after being filtered by the filter core once, pollutants of different particle sizes not being subjected to multiple filtration, filtering effect being not ideal, large particle pollutants being more likely to block the filter core, filter core cleaning and replacement frequency being high, and filtering cost being high.

[0005] To solve the above technical problems, the technical scheme of the utility model is as follows: a filter box is provided, characterized in that: a filter core is vertically installed at the top of the inside of the filter box, and an exhaust port is provided at the top of the side surface of the filter box.

[0006] An air inlet is provided below one side of the filter box, a double filtration structure is provided below the inside of the filter box, and the double filtration structure comprises a filter cylinder and an annular filter screen.

[0007] An installation plate is provided in the inside of the filter box, the installation plate is below the filter core, the filter cylinder is fixedly provided at the bottom of the installation plate, the air inlet is provided outside the filter cylinder, an opening is provided at the middle position of the bottom of the filter cylinder, an annular baffle is connected to the inside of the bottom of the filter cylinder, and an air hole is further provided at the side edge of the bottom of the filter cylinder.

[0008] A through hole is provided at the middle position of the installation plate, the annular filter screen is installed at the bottom of the installation plate, and the annular filter screen is provided inside the filter cylinder. A horizontal filter screen is connected to the top of the annular filter screen, an annular connecting plate is connected to the outside bottom of the annular filter screen, the annular connecting plate is provided inside the annular baffle, and a space is left between the annular connecting plate and the annular baffle.

[0009] The bottom of the annular baffle is connected with a funnel-shaped collecting cylinder, and the bottom of the funnel-shaped collecting cylinder is connected with a dust collecting bag through a connecting channel.

[0010] Further, the exhaust port is connected with a fan through a pipeline.

[0011] Further, the top of the annular filter screen is connected with hanging plates on both sides, the hanging plates are hung on the mounting plate, and the hanging plates are connected and fixed with the mounting plate through bolts.

[0012] Further, the top of the annular connecting plate is an inclined surface, and the side far away from the annular filter screen is lower than the side close to the annular filter screen.

[0013] Further, the filter box body is mounted on the support frame, a maintenance door is arranged on the side of the filter box body, the connecting channel is arranged through the bottom of the filter box body, the connecting channel is mounted and fixed through the support frame, and a butterfly valve is mounted on the connecting channel.

[0014] After the above structure is adopted, the filter box body is internally provided with a double filtering structure and a filter core, a multiple filtering structure is formed, air is filtered through the double filtering structure and then through the filter core, different particle size pollutants are subjected to multiple filtering, and the filtering effect is improved.

[0015] When the double filtering structure filters, air enters the filter box body and collides with the outer wall of the filter cylinder to remove large particle pollutants, the air enters the filter cylinder from the air hole arranged on the bottom side of the filter cylinder, is filtered again through the annular filter screen, and then passes through the filter core upwards, large particle pollutants are removed and then pass through the filter core, the filter core is not easy to be blocked, the cleaning and replacement frequency of the filter core is reduced, and the filtering cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and specific embodiments. The following embodiments can make the person skilled in the art more comprehensively understand the utility model, but the utility model is not limited in the scope of the embodiments.

[0018] As Figure 1As shown in the specific embodiment, the technical scheme adopted is as follows: a filter box 1 is installed on a support frame 2, a maintenance door is arranged on the side of the filter box 1, a filter core 3 is vertically arranged on the top of the inside of the filter box 1, an air inlet 5 is arranged on the bottom of one side of the filter box 1, and an air outlet 4 is arranged on the top of the side of the filter box 1, the air outlet 4 is connected with a fan through a pipeline, air enters the filter box 1 through the air inlet 5, and is discharged through the air outlet 4 after being filtered in the filter box 1.

[0019] A double-filtering structure is arranged on the bottom of the inside of the filter box 1, the double-filtering structure comprises a filter cylinder 6 and a ring-shaped filter screen 7, an installation plate 8 is arranged on the inside of the filter box 1, the installation plate 8 is arranged below the filter core 3, the filter cylinder 6 is fixedly arranged on the bottom of the installation plate 8, the air inlet 5 is arranged on the outside of the filter cylinder 6, an opening is arranged on the middle of the bottom of the filter cylinder 6, a ring-shaped baffle 61 is connected to the inside of the bottom of the filter cylinder 6, and air vent holes are arranged on the side edges of the bottom of the filter cylinder 6, after the air entering the filter box 1 through the air inlet 5 collides with the outer wall of the filter cylinder 6, large-particle pollutants are removed, the air entering the filter cylinder 6 through the air vent holes arranged on the side edges of the bottom of the filter cylinder 6 collides with the outer wall of the filter cylinder 6, and the large-particle pollutants removed therefrom fall to the bottom of the filter box 1, the bottom of the filter box 1 is connected with a discharge channel 12, a butterfly valve is arranged on the discharge channel 12, and the large-particle pollutants on the bottom of the filter box 1 can be discharged through the discharge channel 12.

[0020] A through hole is arranged on the middle of the installation plate 8, the ring-shaped filter screen 7 is arranged on the bottom of the installation plate 8, and the ring-shaped filter screen 7 is arranged in the filter cylinder 6, a horizontal filter screen 73 is connected to the top of the ring-shaped filter screen 7, hanging plates 71 are respectively connected to the two sides of the top of the ring-shaped filter screen 7, the hanging plates 71 are hung on the installation plate 8, and are fixedly connected to the installation plate 8 through bolts, the ring-shaped filter screen 7 is arranged in the filter cylinder 6 through the hanging plates 71, the air entering the filter cylinder 6 is filtered again through the ring-shaped filter screen 7 and the horizontal filter screen 73, and slightly large-particle pollutants are removed.

[0021] A ring-shaped connecting plate 72 is connected to the outside bottom of the ring-shaped filter screen 7, the ring-shaped connecting plate 72 is arranged on the inside of the ring-shaped baffle 61, and a space is left between the ring-shaped connecting plate 72 and the ring-shaped baffle 61, the top of the ring-shaped connecting plate 72 is an inclined surface, the side away from the ring-shaped filter screen 7 is arranged to be lower than the side close to the ring-shaped filter screen 7, the slightly large-particle pollutants filtered through the ring-shaped filter screen 7 slide and are discharged along the ring-shaped connecting plate 72, and the ring-shaped baffle 61 prevents the slightly large-particle pollutants from polluting the entering air again.

[0022] The bottom of the annular baffle 61 is connected with a funnel-shaped collecting cylinder 9, the bottom of the funnel-shaped collecting cylinder 9 is connected with a dust collecting bag 11 through a connecting channel 10, the connecting channel 10 is arranged through the bottom of the filter box 1 and is fixedly installed through the support frame 2, a butterfly valve is installed on the connecting channel 10, the slightly large particle pollutants filtered through the annular filter screen 7 slide along the annular connecting plate 72 to the funnel-shaped collecting cylinder 9 for collection and discharge, the pollutants filtered through the horizontal filter screen 73 slide to the funnel-shaped collecting cylinder 9 for collection and discharge, and the dust on the filter core can also be collected and discharged through the funnel-shaped collecting cylinder 9.

[0023] The butterfly valve, the filter core 3 and the fan and the like described above are all general standard parts or parts known by those skilled in the art, the structure and principle of which can be known by those skilled in the art through technical manuals or through conventional experimental methods, and will not be described.

[0024] Working principle: the double filtering structure and the filter core 3 are installed in the filter box 1 to form a multiple filtering structure, the air entering the filter box 1 from the air inlet 5 collides with the outer wall of the filter cylinder 6, and the large particle pollutants are removed, the large particle pollutants removed after colliding with the outer wall of the filter cylinder 6 fall to the bottom of the filter box 1 and are discharged through the discharge channel 12, the air enters the inside of the filter cylinder 6 through the air hole arranged at the bottom side of the filter cylinder 6, the air is filtered again through the annular filter screen 7 and the horizontal filter screen 73, the slightly large particle pollutants are removed, then the air is filtered through the filter core 3 and is discharged through the air outlet 4, the air is filtered through the double filtering structure and then through the filter core, the pollutants of different particle sizes are filtered multiple times, the filtering effect is improved, the large particle pollutants are removed first and then filtered through the filter core 3, the filter core 3 is not easy to be blocked, the cleaning and replacement frequency of the filter core 3 is reduced, the filtering cost is reduced, the slightly large particle pollutants filtered through the annular filter screen 7 slide along the annular connecting plate 72 to the funnel-shaped collecting cylinder 9 for collection and discharge, the pollutants filtered through the horizontal filter screen 73 slide to the funnel-shaped collecting cylinder 9 for collection and discharge, and the cleaning is convenient.

[0025] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An air multi-filtering device comprising a filtering box, characterized in that: The filter core is vertically installed above the inside of the filter box, and the exhaust port is arranged at the top of the side of the filter box. The air inlet is arranged below one side of the filter box, and the double-filtering structure is arranged below the inside of the filter box, which comprises a filter cylinder and an annular filter screen. The installation plate is arranged inside the filter box and below the filter core, the filter cylinder is fixedly arranged at the bottom of the installation plate, the air inlet is arranged outside the filter cylinder, the opening is arranged at the middle position of the bottom of the filter cylinder, the annular baffle is connected to the inside of the bottom of the filter cylinder, and the air vent is arranged at the side of the bottom of the filter cylinder. The through hole is arranged at the middle position of the installation plate, the annular filter screen is installed at the bottom of the installation plate and inside the filter cylinder, the horizontal filter screen is connected to the top of the annular filter screen, the annular connecting plate is connected to the outside bottom of the annular filter screen, the annular connecting plate is arranged inside the annular baffle, and a space is arranged between the annular connecting plate and the annular baffle. The funnel-shaped collecting cylinder is connected to the bottom of the annular baffle, and the dust collecting bag is connected to the bottom of the funnel-shaped collecting cylinder through the connecting channel.

2. An air multiple filtration device according to claim 1, wherein: The fan is connected to the exhaust port through the pipeline.

3. The air multiple filtration device of claim 1, wherein: The hanging plates are respectively connected to the two sides of the top of the annular filter screen, the hanging plates are hung on the installation plate, and the hanging plates are fixedly connected to the installation plate through the bolts.

4. The air multiple filtration device of claim 1, wherein: The top of the annular connecting plate is an inclined surface, and the side far away from the annular filter screen is arranged lower than the side close to the annular filter screen.

5. The air multiple filtration device of claim 1, wherein: The filter box is installed on the support frame, the maintenance door is arranged at the side of the filter box, the connecting channel passes through the bottom of the filter box, the connecting channel is fixedly installed on the support frame, and the butterfly valve is installed on the connecting channel.

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