KR20110008369A

KR20110008369A - Air cleanness filter

Info

Publication number: KR20110008369A
Application number: KR1020090065689A
Authority: KR
Inventors: 김의웅
Original assignee: 김의웅
Priority date: 2009-07-20
Filing date: 2009-07-20
Publication date: 2011-01-27

Abstract

The present invention relates to an air cleaning filter, and more particularly, to a plate-type air cleaning filter having static electricity, which is formed into a plate-like body and equalizes the inside of the filter under all conditions of use, thereby reducing pressure loss and collecting efficiency. It is good.

The present invention is charged (positive) and negative (-) polar charges by charging a high-molecular synthetic resin film such as polypropylene, polyethylene, etc. with a corona discharge device of 10 to 40㎸ and the like and In addition, a plurality of protrusions 11 are irregularly formed to form a plate-shaped filter element 10, and the plurality of filter elements 10 having the protrusions 11 are formed by stacking a plurality of protrusions 11 and the air flow direction. Is formed by forming a ventilation passage 12 parallel to and having a width equal to the height of the protrusion 11, and forming a pressure equalizing hole 13 communicating both sides of the filter element 10 in the protrusion 11. .

Film, projection, aeration, equalizer, sealed projection

Description

Air Clean Filter {AIR CLEANNESS FILTER}

The present invention relates to an air cleaning filter, and more particularly, to a plate-shaped air cleaning filter having static electricity.

As is well known, various filters have been developed to collect foreign substances in the air, and the above filters require low pressure loss and good dust collection efficiency.

As a filter having low pressure loss and good dust collection efficiency, an electret having static electricity is known. Among the electrets, a polymer synthetic resin is formed of a fibrous filter such as a woven or nonwoven fabric, and at the same time, the filter is a high voltage generator. Since a non-powered electrostatic filter is disclosed in Patent Literature 1, which is capable of retaining static electricity by being charged by Anger is not satisfied.

The inventors and applicants of the present invention have proposed an air cleaning filter that satisfies all the requirements of the filter described above, and has been disclosed in Patent Document 2. The air cleaning filter of Patent Document 2 has a large number of charges while simultaneously charging a polymer synthetic resin film. Irregularities are formed at a height of 0.1 to 5 mm, and a plurality of irregularly formed films are wound in a cylindrical shape to form a passage parallel to the flow direction of air.

Patent Document 1; 10-0310274 (KR, B1)

Patent Document 2; 10-0481289 (KR, B1)

However, the above-described air cleaning filter of the inventors and applicants of Patent Document 2 of the present invention has a fan installed at its inlet or outlet at atmospheric pressure or low pressure, but the inside of the air cleaning filter can be collected through the air passage. Since the pressure in each passage is almost the same, the dust collection efficiency can be maintained satisfactorily.

However, the above-mentioned filter is formed of a polymer synthetic resin film so that the expansion rate varies depending on the season, and the diameter of the filter is enlarged, the difference in wind pressure (air volume) between the center and the outer circumference of the fan, or the installation position of the fan (inlet or outlet side of the filter). If the pressure inside the filter, in particular, the pressure between both sides of the air passage is not uniform, depending on factors such as difference, high pressure of the air to be collected (installed with the high pressure pipe of the filter), etc., the distance between the air passages is not even. In other words, the gap between the high pressure side and the low pressure side is narrowed, so that the collection efficiency is lowered and the field strength is not uniform. Therefore, the collection efficiency of the gas contained in the inorganic or organic compound is reduced. .

And the air cleaning filter of the patent document 2 has a cylindrical cross-section, the filter used in automobiles, etc. are mainly a plate-shaped body having a rectangular cross section, the air cleaning filter of the patent document 2 is formed of a rectangular plate body When the air cleaning filter of Patent Document 2 is formed in a rectangular cross section, it is difficult to uniformly space the air passages, and thus it is not possible to uniformly collect foreign substances and the like.

SUMMARY OF THE INVENTION The present invention aims to provide an air cleaning filter in which the above problems are corrected, formed into a plate-like body, and the pressure inside the filter is equalized under all use conditions, thereby reducing pressure loss and improving dust collection efficiency.

In order to achieve the above object, the present invention is to charge the polymer resin film of a certain width and at the same time stacking a plurality of plate-like filter elements having a plurality of projections to form a passage in parallel with the flow direction of air and To form a pressure equalizing hole communicating both sides of the film to the projection.

In addition, the present invention is a charge of the polymer resin film of a certain width and at the same time a plurality of plate-like filter elements having a plurality of projections are laminated to form a plurality of passages parallel to the flow direction of air, most of the projections Some of the protrusions which form both the pressure equalizing holes communicating with both sides of the film and which do not form the pressure equalizing holes are dispersed and formed between the protrusions forming the pressure equalizing holes to form a closed protrusion.

As described above, the first embodiment of the present invention forms equal pressure holes in the projections maintaining the intervals between the air passages so that both sides of the filter elements communicate with each other. When foreign matter is collected by charging and the gas is collected (purified), when the pressure between the passages is not balanced, the air in the high pressure section flows to the low pressure side, so that the unbalance of the wind pressure in the filter is eliminated and the pressure is equalized in each passage. If equal pressure is formed in each of the air passages as described above, the spacing of each of the air passages is uniform, so that the electric field (electric field) strength of each air passage is uniform, thereby reducing the pressure loss and maintaining the dust collection efficiency. It is possible to maintain a good collection rate of the gas contained in the inorganic or organic compound.

In addition, by forming a filter element in a plate shape and stacking a plurality of sheets, a rectangular cross-section filter can be manufactured with good collection efficiency, and by diversifying the filter, it can contribute to reducing air pollution.

In the second embodiment of the present invention, the protrusions without forming the equalizing holes in the first embodiment are formed by the closed type protrusions, so that even if the pressure equalization to each air passage is not smooth due to the abnormal wind pressure at high pressure or the like. The dust collection efficiency can be kept favorable by keeping the space | interval to each ventilation path good.

1 is an exploded perspective view of the first embodiment of the present invention, FIG. 2 is a side view of the first embodiment of the present invention, FIG. 3 is an enlarged plan view of the first embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along line BB of FIG. 4, wherein the first embodiment of the present invention is charged with a corona discharge device of 10 to 40 kV to a polymer synthetic resin film such as polypropylene and polyethylene having a predetermined width. +) The positive and negative polar charges are deposited (granted), and a plurality of protrusions 11 are irregularly formed to form a plate-shaped filter element 10, and the charges and protrusions 11 ), A plurality of filter elements 10 having a plurality of layers) are stacked to form an air passage 12 that is parallel to the flow direction of air and has a width corresponding to the height of the protrusions 11, and the filter elements are formed on the protrusions 11. It was made by forming the equalizing hole 13 which communicates both surfaces of (10).

The equalizing hole 13 is formed in the circumference of 45 ° ~ 75 ° as shown in Figure 5 to maintain the equalization of all the passages 12 while maintaining the rigidity of the projection (11).

Other detailed configurations are the same as those of the air cleaning filter of Patent Document 2, and thus, a detailed description thereof is omitted, and the air cleaning filter of Patent Document 2 is cited.

According to the first embodiment of the present invention as described above, the roll-shaped synthetic resin film is cut to a predetermined width to be charged and at the same time manufactured into a roll-shaped protrusion, and then cut to a predetermined length to form a plate-shaped filter element 10. And a plurality of filter elements 10 are stacked and installed in a casing or the like, and a fan is installed at an inlet, an outlet, or an intermediate portion of the filter, and the air to be collected is passed through the air passage 12 in parallel with the filter element 10. The permanently charged charge (electrostatic) and foreign matter are collected by charging and at the same time capture the smell of the gas.

When collecting or collecting foreign matters as described above, if the pressure difference between the two sides of the air passage 12 occurs due to the difference in the wind pressure (air volume) between the center and the outer circumference as described above or the high pressure of the dust collected, The air pressure of the side air passage 12 is moved to the low pressure side air passage 12 through the equalizing hole 13 to maintain the air pressure on both sides of the filter element 10 uniformly, thereby making the space of the air passage 12 uniform. In this case, if the spacing of all the air passages 12 is uniform, the electric field strength in all the air passages 12 is also uniform, so that the pressure loss is small and the dust collection efficiency can be maintained satisfactorily.

In addition, it is possible to contribute to the reduction of air pollution by forming a filter into a plate-shaped rectangular cross-section and maintaining a good collection efficiency of foreign matter.

FIG. 6 is an enlarged plan view of a second embodiment of the present invention, and FIG. 7 is a cross-sectional view taken along line CC of FIG. 6, and in the second embodiment of the present invention, the same components as those of the first embodiment are designated by the same reference numerals and will be described in detail. Is omitted, the difference from the first embodiment is the first embodiment to form a pressure equalizing hole 13 in the entire projection (11), the second embodiment of the protrusion 11, the majority of the pressure equalizing holes (13) Some of the protrusions 11 that are formed and do not form the pressure equalizing holes 13 are dispersed between the protrusions 11 in which the pressure equalizing holes 13 are formed to form a closed type protrusion 22.

As described above, the second embodiment of the present invention forms a part of the protrusions 11 as the closed protrusions 22 so that abnormal wind pressure acts on the air passages 12 and thus the function of the equalizing hole 13 is poor. Even when the free end of the protrusion 11 on which the pressure equalizing hole 13 is formed deforms, the hermetic protrusion 22 maintains good rigidity while the free end thereof is in surface contact with one surface of the filter element 10. Since the interval between the air passages 12 can be maintained satisfactorily by maintaining the dust collection efficiency can be maintained satisfactorily.

The hermetic protrusion 22 is formed in a trapezoidal shape or a conical column shape with a smaller cross-sectional area toward the free end, so that the supporting force is good, and the free end is formed in a flat surface to be in contact with any one surface of the filter element 10. By doing so, it is possible to further maintain the spacing of the vent furnace 12.

1 is an exploded perspective view of a first embodiment of the present invention;

Figure 2 is a side view of the first embodiment of the present invention.

Figure 3 is an enlarged plan view of the first embodiment of the present invention.

4 is a cross-sectional view taken along the line A-A of FIG.

5 is a cross-sectional view taken along the line B-B of FIG.

Figure 6 is an enlarged plan view of a second embodiment of the present invention.

7 is a cross-sectional view taken along the line C-C of FIG.

10: filter element 11: projection 12: aeration

13: Pressure equalizer 22: Airtight protrusion

Claims

Charged to a polymer resin film of a certain width and at the same time by stacking a plurality of plate-like filter elements having a plurality of projections to form a flow path in parallel with the flow direction of air, and the both sides of the film to communicate with the projections Air cleaning filter characterized by forming a pressure equalizing hole.

Charge the polymer resin film of a certain width and at the same time stack a plurality of plate-like filter elements having a plurality of projections to form a flow path in parallel with the flow direction of air, the majority of the projections on both sides of the film And some of the protrusions which are formed to communicate with each other and which do not form the pressure equalizing holes are dispersed between the protrusions forming the pressure equalizing holes, thereby forming airtight protrusions.

The air cleaning filter according to claim 1 or 2, wherein the pressure equalizing hole is formed in a circumference of 45 ° to 75 °.

The air cleaning filter according to claim 2, wherein the closed protrusion is formed to have a smaller cross-sectional area toward the free end side.

The air cleaning filter according to claim 2 or 4, wherein the free end of the sealed protrusion is formed in a flat surface.