CN216910610U - Low windage filter effect's good active carbon filter - Google Patents

Abstract

An active carbon filter with low wind resistance and good filtering effect comprises a filter shell, a preposed filter screen, an electrostatic dust collection device, an active carbon filter screen and 3 sliding rail assemblies; the filter shell is of a box structure, a front filter screen slot, an electrostatic dust collection device slot and an active carbon filter screen slot are sequentially formed in the top surface of the filter shell from front to back, and the front filter screen, the electrostatic dust collection device and the active carbon filter screen are respectively inserted into the filter shell through the front filter screen slot, the electrostatic dust collection device slot and the active carbon filter screen slot. The activated carbon filter with the low wind resistance and the good filtering effect is applied to air conditioners and ventilation systems, has reasonable structural design, can filter out fiber and larger particle pollutants in air, collect dust electrostatically, remove peculiar smell and harmful gas, is more convenient to replace and clean by adopting the plug-in design, and avoids the problems of large resistance, high wind loss and reduced filtering effect of the activated carbon filter caused by excessive impurity adsorption of the activated carbon filter due to long-time use.

Description

Low windage filter effect's good active carbon filter

Technical Field

The utility model relates to the technical field of air purification, in particular to an activated carbon filter with low wind resistance and good filtering effect.

Background

In the 21 st century, along with rapid development of economy and rise of industrialization level, people have happy lives, human living environments are seriously damaged, and the problem of environmental pollution is increasingly serious. Among them, "indoor air pollution" has become a popular topic of public concern as a sign of the third pollution period.

The presence of pollution sources indoors and the diffusion of outdoor pollutants are two important factors contributing to indoor air pollution. In particular, most buildings adopt closed construction and a large amount of finishing materials and air conditioners, which causes serious indoor air pollution. The environmental protection agency of the united states has found that the indoor air pollution level is sometimes 2-5 times that of the outdoor environment, and even more, can reach more than 100 times. Therefore, in order for the air conditioner and the ventilation system to better purify the indoor air while adjusting the room temperature, it is necessary to provide an air purifying device in the air conditioner and the ventilation system.

At present, a filter applied to an air conditioner and a ventilation system usually adopts a physical filtering mode, namely a plurality of filter screens are installed, and in use, because air possibly contains impurities such as fibers, particle pollutants, dust and the like, the resistance of the filter screens of the filter is increased quickly, the wind loss is high, the air quantity of outlets of the air conditioner and the ventilation system can be attenuated continuously, even a part of far-end air ports do not output fresh air, and further the effective ventilation rate and the effective oxygen content in a room are influenced. Therefore, it is necessary to develop an activated carbon filter with low wind resistance and good filtering effect to solve the above problems.

Chinese patent application No. cn202023255902.x discloses degassing unit and active carbon filter of active carbon filter, through setting up degassing unit, can disinfect to active carbon filter, does not solve the long-time resistance increase of using of active carbon filter problem fast, that the windage is big.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defects, the utility model aims to provide the activated carbon filter with low wind resistance and good filtering effect, which is applied to air conditioners and ventilation systems, has reasonable structural design, can filter out fiber and larger particle pollutants in air, collect dust electrostatically, remove peculiar smell and harmful gas, is convenient to replace and clean by adopting an insertion design, avoids the problems of large resistance, high wind loss and reduced filtering effect of the activated carbon filter caused by excessive impurity adsorption due to long-time use, and has wide application prospect.

The technical scheme is as follows: an active carbon filter with low wind resistance and good filtering effect comprises a filter shell, a preposed filter screen, an electrostatic dust collection device, an active carbon filter screen and 3 sliding rail assemblies; the filter shell is of a box structure, a front filter screen slot, an electrostatic dust collection device slot and an active carbon filter screen slot are sequentially formed in the top surface of the filter shell from front to back, the front filter screen, the electrostatic dust collection device and the active carbon filter screen are respectively inserted into the filter shell through the front filter screen slot, the electrostatic dust collection device slot and the active carbon filter screen slot, an air inlet and an air outlet are respectively formed in the front end surface and the back end surface of the filter shell, the air inlet is located in front of the front filter screen, and the air outlet is located behind the active carbon filter screen; each sliding rail component comprises a fixed rail and a movable rail which are matched with each other, the fixed rail of each sliding rail component is fixedly arranged on the inner walls of the left side and the right side of the filter shell, the movable rail of each sliding rail component is fixedly arranged on the outer walls of the left side and the right side of the front filter screen, the electrostatic dust collection device and the activated carbon filter screen respectively, the front filter screen, the electrostatic dust collection device and the activated carbon filter screen are arranged in the filter shell respectively through the corresponding sliding rail components, and the top surfaces of the front filter screen, the electrostatic dust collection device and the activated carbon filter screen are respectively provided with a clamping block matched with a slot of the front filter screen, a slot of the electrostatic dust collection device and a slot of the activated carbon filter screen; the active carbon filter screen 4 includes metal honeycomb carrier, plastics honeycomb carrier, frame, the one side of metal honeycomb carrier is provided with a plurality of honeycomb net one, the one side of plastics honeycomb carrier is provided with a plurality of honeycomb net two, the active carbon powder grain is adhered to honeycomb net one surface, the active carbon granule is adhered to two surface of honeycomb net, the another side of plastics honeycomb carrier closely laminates and fixes through its periphery through the frame with the another side of plastics honeycomb carrier.

The activated carbon filter with the low wind resistance and the good filtering effect is applied to an air conditioner and a ventilation system, has reasonable structural design, air of the air conditioner and the ventilation system enters the filter shell from the air inlet, can filter fibers and larger particle pollutants through the preposed filter screen, air after primary filtering through the preposed filter screen is ionized through the electrostatic dust collection device, dust particles are charged in the process, the charged dust particles are adsorbed, peculiar smell, stink and harmful gas in the air are removed through the activated carbon filter screen, and finally the air is discharged from the air outlet.

The front filter screen, the electrostatic dust collector and the active carbon filter screen are arranged in the filter shell in an insertion mode, and can be conveniently and stably fixed and quickly taken out of the filter shell through the matching of the front filter screen slot, the electrostatic dust collector slot and the active carbon filter screen slot, the slide rail assembly and the clamping block, and the front filter screen, the electrostatic dust collector and the active carbon filter screen can be regularly cleaned and replaced, so that the problems of large resistance, high wind loss and reduced filtering effect of the active carbon filter caused by excessive impurity adsorption of the front filter screen, the electrostatic dust collector and the active carbon filter screen due to long-time use of the front filter screen, the electrostatic dust collector and the active carbon filter screen are solved.

Furthermore, the front filter screen is an HEPA filter screen.

The HEPA filter screen and the electrostatic dust collection device can be obtained in the prior art, the model, the specific structure, the specific installation position and the connection mode of the HEPA filter screen and the electrostatic dust collection device are all the model, the specific structure, the specific installation position and the connection mode known by technicians in the field, the structure and the principle of the HEPA filter screen and the electrostatic dust collection device can be known by the technicians through technical manuals or conventional experimental methods, and the implementation of the technical scheme of the utility model is not influenced. For example, HEPA filter screen can be selected from E10, E11, E12, H13, etc., and the electrostatic dust collector can be referred to CN 211011711U.

Furthermore, the air inlet and the air outlet of the activated carbon filter with the good low wind resistance filtering effect are respectively provided with a wind resistance sensor and are respectively electrically connected with an external controller, and the controller is electrically connected with the warning device.

The wind resistance sensors are respectively arranged at the air inlet and the air outlet, so that the wind power of the air inlet and the air outlet can be effectively detected and sensed through the wind resistance sensors, and the wind power value is transmitted to an external controller for data analysis, when the difference or the proportion of the wind power values of the air inlet and the air outlet is higher than a specified value or proportion (the higher value or proportion represents that the current active carbon filter has overhigh resistance and wind loss in use, which causes excessive wind power attenuation at the air outlet, wherein the specified value or proportion is set according to actual requirements), the controller controls the warning device to warn to remind a user that the front filter screen, the electrostatic dust collection device and the active carbon filter screen of the active carbon filter need to be pulled out of the active carbon filter and the front filter screen, the electrostatic dust collection device and the active carbon filter screen are cleaned.

The wind resistance sensor, the controller and the warning device can be in the prior art, the types, the specific structures, the specific installation positions and the connection modes of the wind resistance sensor, the controller and the warning device are all the types, the specific structures, the specific installation positions and the connection modes known by technicians in the field, the structures and the principles of the wind resistance sensor, the controller and the warning device can be known by technicians or conventional experimental methods, and the implementation of the technical scheme of the utility model is not influenced.

Furthermore, in the activated carbon filter with a good low wind resistance filtering effect, the shapes of the first honeycomb grid and the second honeycomb grid are regular hexagons, and the diameter of the circumscribed circle of the first honeycomb grid is far smaller than that of the circumscribed circle of the second honeycomb grid.

The active carbon filter screen is characterized in that a metal honeycomb carrier and a plastic honeycomb carrier are combined and fixed in an outer frame, because metal is easy to process and form, a dense and thin honeycomb grid I can be manufactured on the metal honeycomb carrier, and powdered active carbon is adhered on the metal honeycomb carrier, so that the contact area of the active carbon can be greatly expanded, and meanwhile, the air resistance is also reduced; the plastic honeycomb carrier is light in weight, the diameter of the circumscribed circle of the second honeycomb grid is far larger than that of the circumscribed circle of the first honeycomb grid, granular activated carbon with larger volume can be adhered on the plastic honeycomb carrier, and the accumulated purification amount of gas is improved by increasing the total carbon filling amount.

Through the mode of gluing the charcoal, furthest guarantees the effective area of contact of active carbon and air, can not only improve purification efficiency, can guarantee the accumulative purification volume moreover, under the condition that keeps the whole size of filter screen unanimity, has improved the effective area of contact of active carbon on the active carbon filter screen, has reduced the windage of active carbon filter screen. The material of the activated carbon is customized according to the needs of customers, such as special activated carbon materials aiming at organic compounds, acid and alkaline gases, formaldehyde, mercury vapor, radioactive gases and the like.

Furthermore, in the activated carbon filter with a good low wind resistance filtering effect, the average particle size of the activated carbon particles is 0.3-0.5mm, and the average particle size of the activated carbon particles is 2-3 mm.

Furthermore, the position of the bottom surface in the filter shell corresponding to the front filter screen slot, the electrostatic dust collection device slot and the active carbon filter screen slot is respectively and fixedly provided with a first limiting part, a second limiting part and a third limiting part.

Furthermore, in the activated carbon filter with a good low wind resistance filtering effect, the first limiting part, the second limiting part and the third limiting part are all composed of limiting clamping blocks and buffer springs, and the number of the limiting clamping blocks is multiple; a plurality of limiting fixture blocks of the first limiting part are fixedly arranged at equal distances on the inner bottom surface of the filter shell corresponding to the positions of the pre-filter screen slots, limiting grooves matched with the pre-filter screen are formed in the tops of the limiting fixture blocks of the first limiting part, and a buffer spring is fixedly arranged in each limiting groove; a plurality of limiting fixture blocks of the second limiting part are fixedly arranged on the inner bottom surface of the filter shell at equal distances at positions corresponding to the electrostatic dust collection device insertion grooves, limiting grooves matched with the electrostatic dust collection device are formed in the tops of the plurality of limiting fixture blocks of the second limiting part, and a buffer spring is fixedly arranged in each limiting groove; the top of the plurality of limiting fixture blocks of the third limiting part is provided with a limiting groove matched with the activated carbon filter screen, and a buffer spring is fixedly arranged in each limiting groove.

Through setting up locating part one, locating part two, locating part three, through spacing fixture block and buffer spring's cooperation, improve leading filter screen, electrostatic precipitator device, the installation stability of active carbon filter screen in the filter casing.

The utility model has the beneficial effects that:

(1) the activated carbon filter with the good low wind resistance filtering effect is applied to an air conditioner and a ventilation system, has reasonable structural design, air of the air conditioner and the ventilation system enters the filter shell from the air inlet, can filter fibers and larger particle pollutants through the preposed filter screen, ionizes the air through the air primarily filtered by the preposed filter screen and the electrostatic dust collection device, dust particles can be charged in the process, the charged dust particles can be adsorbed, then peculiar smell, stink and harmful gas in the air can be removed through the activated carbon filter screen, and finally the air is discharged from the air outlet;

(2) the active carbon filter with good low wind resistance and filtering effect is characterized in that the preposed filter screen, the electrostatic dust collection device and the active carbon filter screen are arranged in the filter shell in an insertion mode, and are convenient to stably fix and quickly take out in the filter shell through the matching of the preposed filter screen slot, the electrostatic dust collection device slot, the active carbon filter screen slot, the sliding rail assembly and the clamping block, and the preposed filter screen, the electrostatic dust collection device and the active carbon filter screen can be regularly cleaned and replaced, so that the problems of large resistance, high wind loss and reduced filtering effect of the active carbon filter caused by excessive adsorption of impurities due to long-time use of the preposed filter screen, the electrostatic dust collection device and the active carbon filter screen are solved;

(3) according to the activated carbon filter with the low wind resistance and the good filtering effect, the activated carbon filter screen is characterized in that the metal honeycomb carrier and the plastic honeycomb carrier are combined and fixed in the outer frame, a dense and thin honeycomb grid I is manufactured on the metal honeycomb carrier, and granular activated carbon is adhered on the metal honeycomb carrier, so that the contact area of the activated carbon can be greatly expanded, and meanwhile, the air resistance is also reduced; the diameter of the circumscribed circle of the second honeycomb grid of the plastic honeycomb carrier is far larger than that of the circumscribed circle of the first honeycomb grid, granular activated carbon with larger volume can be adhered on the second honeycomb grid, and the accumulated purification amount of gas is improved by increasing the total carbon filling amount.

Drawings

FIG. 1 is a schematic view of an activated carbon filter with a low wind resistance and a good filtering effect according to the present invention;

FIG. 2 is a front view of the activated carbon filter with low wind resistance and good filtering effect according to the present invention;

FIG. 3 is a rear view of the activated carbon filter with low wind resistance and good filtering effect according to the present invention;

FIG. 4 is a schematic view of the interior of the activated carbon filter with low wind resistance and good filtering effect according to the present invention;

FIG. 5 is a front view of an activated carbon filter screen of the activated carbon filter with a good low wind resistance filtering effect according to the present invention;

FIG. 6 is a rear view of an activated carbon filter screen of the activated carbon filter with a good low wind resistance filtering effect according to the present invention;

fig. 7 is a schematic structural view (1 fixed rail and 1 movable rail) of the activated carbon filter with a good low wind resistance filtering effect when the slide rail is not installed;

FIG. 8 is a structural diagram of the activated carbon filter with low wind resistance and good filtering effect according to the present invention;

in the figure: the device comprises a filter shell 1, a front filter screen slot 11, an electrostatic dust collection device slot 12, an activated carbon filter screen slot 13, an air inlet 14, an air outlet 15, a first limiting part 16, a limiting block 161, a buffer spring 162, a second limiting part 17, a third limiting part 18, a front filter screen 2, a block 21, an electrostatic dust collection device 3, an activated carbon filter screen 4, a metal honeycomb carrier 41, a first honeycomb grid 411, a plastic honeycomb carrier 42, a second honeycomb grid 421, an outer frame 43, a sliding rail assembly 5, a fixed rail 51, a movable rail 52, a controller 6, a wind resistance sensor 61 and an alarm 7.

Detailed Description

The utility model will be further elucidated with reference to the accompanying figures 1-8 and specific examples.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The activated carbon filter with the structure shown in fig. 1-8 and good low wind resistance filtering effect comprises a filter shell 1, a front filter screen 2, an electrostatic dust collection device 3, an activated carbon filter screen 4 and 3 sliding rail assemblies 5; the filter shell 1 is of a box structure, a front filter screen slot 11, an electrostatic dust collection device slot 12 and an active carbon filter screen slot 13 are sequentially formed in the top surface of the filter shell 1 from front to back, the front filter screen 2, the electrostatic dust collection device 3 and the active carbon filter screen 4 are respectively inserted into the filter shell 1 through the front filter screen slot 11, the electrostatic dust collection device slot 12 and the active carbon filter screen slot 13, an air inlet 14 and an air outlet 15 are respectively formed in the front end surface and the back end surface of the filter shell 1, the air inlet 14 is located in front of the front filter screen 2, and the air outlet 15 is located behind the active carbon filter screen 4; each slide rail assembly 5 comprises a fixed rail 51 and a movable rail 52 which are matched with each other, the fixed rail 51 of each slide rail assembly 5 is fixedly arranged on the inner walls of the left side and the right side of the filter shell 1, the movable rail 52 of each slide rail assembly 5 is respectively fixedly arranged on the outer walls of the left side and the right side of the front filter screen 2, the electrostatic dust collection device 3 and the activated carbon filter screen 4, the front filter screen 2, the electrostatic dust collection device 3 and the activated carbon filter screen 4 are respectively arranged in the filter shell 1 through the corresponding slide rail assemblies 5, and the top surfaces of the front filter screen 2, the electrostatic dust collection device 3 and the activated carbon filter screen 4 are respectively provided with a fixture block 21 which is matched with the front filter screen slot 11, the electrostatic dust collection device slot 12 and the activated carbon filter screen slot 13; the active carbon filter screen 4 includes metal honeycomb carrier 41, plastics honeycomb carrier 42, frame 43, the one side of metal honeycomb carrier 41 is provided with a plurality of honeycomb net 411, the one side of plastics honeycomb carrier 42 is provided with two 421 of a plurality of honeycomb net, the surface adhesion of a honeycomb net 411 has the active carbon powder, two 421 surface adhesion of honeycomb net have the active carbon granule, the another side of plastics honeycomb carrier 42 closely laminates and fixes through frame 43 through its periphery with the another side of plastics honeycomb carrier 42.

In addition, the preposed filter screen 2 is a HEPA filter screen.

Further, the air inlet 14 and the air outlet 15 are respectively provided with a wind resistance sensor 61 and are respectively electrically connected with an external controller 6, and the controller 6 is electrically connected with the alarm 7.

In addition, the shapes of the first honeycomb grid 411 and the second honeycomb grid 421 are regular hexagons, and the diameter of the circumscribed circle of the first honeycomb grid 411 is far smaller than that of the circumscribed circle of the second honeycomb grid 421.

Furthermore, the average particle size of the activated carbon powder particles is 0.3-0.5mm, and the average particle size of the activated carbon particles is 2-3 mm.

Furthermore, the positions of the inner bottom surface of the filter housing 1 corresponding to the front filter screen slot 11, the electrostatic dust collection device slot 12 and the activated carbon filter screen slot 13 are respectively and fixedly provided with a first limiting part 16, a second limiting part 17 and a third limiting part 18.

Further, the first limiting member 16, the second limiting member 17 and the third limiting member 18 are all composed of a plurality of limiting blocks 161 and buffer springs 162, and the number of the limiting blocks 161 is several; a plurality of limiting blocks 161 of the first limiting piece 16 are equidistantly and fixedly arranged at positions, corresponding to the front filter screen slot 11, on the inner bottom surface of the filter shell 1, limiting grooves matched with the front filter screen 2 are formed in the tops of the plurality of limiting blocks 161 of the first limiting piece 16, and a buffer spring 162 is fixedly arranged in each limiting groove; the plurality of limiting blocks 161 of the second limiting part 17 are fixedly arranged at equal distances at positions, corresponding to the electrostatic dust collecting device slot 12, on the inner bottom surface of the filter housing 1, limiting grooves matched with the electrostatic dust collecting device 3 are formed in the tops of the plurality of limiting blocks 161 of the second limiting part 17, and a buffer spring 162 is fixedly arranged in each limiting groove; the plurality of limiting blocks 161 of the third limiting part 18 are equidistantly and fixedly arranged at positions, corresponding to the activated carbon filter screen slots 13, of the bottom surface of the filter housing 1, a limiting groove matched with the activated carbon filter screen 4 is formed in the top of the plurality of limiting blocks 161 of the third limiting part 18, and a buffer spring 162 is fixedly arranged in each limiting groove.

Examples

Based on the above structure, as shown in FIGS. 1 to 8.

The activated carbon filter with the low wind resistance and the good filtering effect is applied to an air conditioner and a ventilation system, the structural design is reasonable, air of the air conditioner and the ventilation system enters the filter shell 1 from the air inlet 14, firstly passes through the preposed filter screen 2 to filter fibers and larger particle pollutants, air after primary filtering through the preposed filter screen 2 is ionized through the electrostatic dust collection device 3, dust particles are charged in the process, the charged dust particles are adsorbed, then the air passes through the activated carbon filter screen 4 to remove peculiar smell, stink and harmful gas in the air, and finally the air is discharged from the air outlet 15.

The front filter screen 2, the electrostatic dust collection device 3 and the activated carbon filter screen 4 are arranged in the filter shell 1 in an insertion mode, and are convenient to stably fix and quickly take out in the filter shell 1 through the matching of the front filter screen slot 11, the electrostatic dust collection device slot 12 and the activated carbon filter screen slot 13 with the slide rail assembly 5 and the fixture block 21, and the front filter screen 2, the electrostatic dust collection device 3 and the activated carbon filter screen 4 can be regularly cleaned and replaced, so that the problems of large resistance, high wind loss and reduced filtering effect of the activated carbon filter caused by excessive impurity adsorption of the front filter screen 2, the electrostatic dust collection device 3 and the activated carbon filter screen 4 due to long-time use are solved.

The front filter screen 2(HEPA filter screen) and the electrostatic dust collection device 4 can be implemented in the prior art, the type, the specific structure, the specific installation position and the connection mode of the front filter screen 2(HEPA filter screen) and the electrostatic dust collection device 4 are all the type, the specific structure, the specific installation position and the connection mode known by technicians in the field, the structure and the principle of the front filter screen and the electrostatic dust collection device can be known by the technicians through technical manuals or conventional experimental methods, and the implementation of the technical scheme of the utility model is not influenced. For example, the pre-filter 2(HEPA filter) may be selected from E10, E11, E12, H13, etc., and the electrostatic dust collector 3 may refer to CN 211011711U.

Furthermore, the air resistance sensors 61 are respectively arranged at the air inlet 14 and the air outlet 15, the wind power of the air inlet 14 and the air outlet 15 can be effectively detected and sensed through the wind resistance sensors 61, the wind power value is transmitted to the external controller 6 for data analysis, when the difference or the ratio of the wind power values of the air inlet 14 and the air outlet 15 is higher than a specified value or a specified ratio (the difference or the ratio is higher than the specified value or the specified ratio represents that the current active carbon filter has too high resistance and too high wind loss in use, so that the wind power attenuation of the air outlet 14 is excessive, wherein the specified value or the specified ratio is set according to actual requirements), the controller 6 controls the alarm 7 to warn to remind a user that the prepositive filter screen 2, the electrostatic dust collection device 3 and the active carbon filter screen 4 of the active carbon filter need to be pulled out of the active carbon filter and the prepositive filter screen 2 is pulled out of the active carbon filter screen 4, The electrostatic dust collector 3 and the activated carbon filter 4 are cleaned.

The wind resistance sensor 61, the controller 6 and the warning device 7 can be realized in the prior art, the types, specific structures, specific installation positions and connection modes of the wind resistance sensor 61, the controller 6 and the warning device 7 are all known by those skilled in the art, and the structures and principles of the wind resistance sensor 61, the controller 6 and the warning device can be known by technical manuals or conventional experimental methods, so that the implementation of the technical scheme of the utility model is not affected.

Furthermore, the activated carbon filter screen 4 is formed by combining and fixing the metal honeycomb carrier 41 and the plastic honeycomb carrier 42 in the outer frame 43, and because metal is easy to process and form, a dense and thin honeycomb grid I411 can be manufactured on the metal honeycomb carrier 41, and granular activated carbon is adhered on the metal honeycomb carrier, so that the contact area of the activated carbon can be greatly expanded, and meanwhile, the air resistance is also reduced; the plastic honeycomb carrier 42 is light in weight, the circumscribed circle diameter of the second honeycomb grid 421 is far larger than that of the first honeycomb grid, granular activated carbon with larger volume can be adhered on the carrier, and the accumulated purification amount of gas is improved by increasing the total carbon filling amount.

Through the mode of gluing the charcoal, furthest guarantees the effective area of contact of active carbon and air, can not only improve purification efficiency, can guarantee the accumulative purification volume moreover, under the unanimous circumstances of the whole size of filter screen of keeping, has improved the effective area of contact of active carbon on the active carbon filter screen 4, has reduced the windage of active carbon filter screen 4. The material of the activated carbon is customized according to the needs of customers, such as special activated carbon materials aiming at organic compounds, acid and alkaline gases, formaldehyde, mercury vapor, radioactive gases and the like.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination between the embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the idea of the present invention.

Claims (7)

1. An activated carbon filter with low wind resistance and good filtering effect is characterized by comprising a filter shell (1), a front filter screen (2), an electrostatic dust collection device (3), an activated carbon filter screen (4) and 3 sliding rail assemblies (5); the filter shell (1) is of a box structure, a front filter screen slot (11), an electrostatic dust collection device slot (12) and an active carbon filter screen slot (13) are sequentially formed in the top surface of the filter shell (1) from front to back, the front filter screen (2), the electrostatic dust collection device (3) and the active carbon filter screen (4) are respectively inserted into the filter shell (1) through the front filter screen slot (11), the electrostatic dust collection device slot (12) and the active carbon filter screen slot (13), an air inlet (14) and an air outlet (15) are respectively formed in the front end surface and the back end surface of the filter shell (1), the air inlet (14) is located in front of the front filter screen (2), and the air outlet (15) is located behind the active carbon filter screen (4); each sliding rail component (5) comprises a fixed rail (51) and a movable rail (52) which are matched with each other, the fixed rail (51) of each sliding rail component (5) is fixedly arranged on the inner walls of the left side and the right side of the filter shell (1), the movable rail (52) of each sliding rail component (5) is respectively and fixedly arranged on the outer walls of the left side and the right side of the preposed filter screen (2), the electrostatic dust collection device (3) and the activated carbon filter screen (4), the preposed filter screen (2), the electrostatic dust collection device (3) and the activated carbon filter screen (4) are respectively arranged in the filter shell (1) through corresponding sliding rail assemblies (5), and clamping blocks (21) matched with the preposed filter screen slot (11), the electrostatic dust collection device slot (12) and the activated carbon filter screen slot (13) are respectively arranged on the top surfaces of the preposed filter screen (2), the electrostatic dust collection device (3) and the activated carbon filter screen (4); activated carbon filter screen (4) are including metal honeycomb carrier (41), plastics honeycomb carrier (42), frame (43), the one side of metal honeycomb carrier (41) is provided with a plurality of honeycomb net (411), the one side of plastics honeycomb carrier (42) is provided with a plurality of honeycomb net two (421), honeycomb net (411) surface is stained with the activated carbon powder, honeycomb net two (421) surface is stained with the activated carbon granule, the another side of plastics honeycomb carrier (42) closely laminates and fixes through frame (43) through its periphery with the another side of plastics honeycomb carrier (42).

2. The activated carbon filter with low wind resistance and good filtering effect according to claim 1, characterized in that the preposed filter screen (2) is a HEPA filter screen.

3. The activated carbon filter with low wind resistance and good filtering effect according to claim 1, wherein the wind resistance sensors (61) are respectively arranged at the air inlet (14) and the air outlet (15) and are respectively electrically connected with an external controller (6), and the controller (6) is electrically connected with the alarm (7).

4. The activated carbon filter with low wind resistance and good filtering effect according to claim 1, wherein the shapes of the first honeycomb grid (411) and the second honeycomb grid (421) are regular hexagons, and the diameter of the circumscribed circle of the first honeycomb grid (411) is far smaller than that of the circumscribed circle of the second honeycomb grid (421).

5. The activated carbon filter with low wind resistance and good filtering effect of claim 4, wherein the average particle size of the activated carbon particles is 0.3-0.5mm, and the average particle size of the activated carbon particles is 2-3 mm.

6. The activated carbon filter with low wind resistance and good filtering effect according to claim 1, wherein a first limiting part (16), a second limiting part (17) and a third limiting part (18) are fixedly arranged at positions of the inner bottom surface of the filter shell (1) corresponding to the front filter screen slot (11), the electrostatic dust collector slot (12) and the activated carbon filter screen slot (13), respectively.

7. The activated carbon filter with low wind resistance and good filtering effect according to claim 6, wherein the first limiting part (16), the second limiting part (17) and the third limiting part (18) are all composed of a plurality of limiting clamping blocks (161) and buffer springs (162), and the number of the limiting clamping blocks (161) is several; a plurality of limiting fixture blocks (161) of the first limiting piece (16) are fixedly arranged at equal distances on the inner bottom surface of the filter shell (1) corresponding to the positions of the front filter screen slots (11), limiting grooves matched with the front filter screen (2) are formed in the tops of the limiting fixture blocks (161) of the first limiting piece (16), and a buffer spring (162) is fixedly arranged in each limiting groove; a plurality of limiting fixture blocks (161) of the second limiting part (17) are fixedly arranged at equal distances on the inner bottom surface of the filter shell (1) corresponding to the positions of the electrostatic dust collection device slots (12), limiting grooves matched with the electrostatic dust collection device (3) are formed in the tops of the limiting fixture blocks (161) of the second limiting part (17), and a buffer spring (162) is fixedly arranged in each limiting groove; a plurality of limiting clamping blocks (161) of the three limiting parts (18) are fixedly arranged at equal distances in positions, corresponding to the activated carbon filter screen slots (13), of the inner bottom surface of the filter shell (1), limiting grooves matched with the activated carbon filter screen (4) are formed in the tops of the plurality of limiting clamping blocks (161) of the three limiting parts (18), and a buffer spring (162) is fixedly arranged in each limiting groove.

Images