A kind of composite air filtering screenTechnical field
It the utility model is related to a kind of composite air filtering screen.
Background technology
Air purifier is also known as " air cleaner ", air cleaner, clarifier, is to refer to adsorb, decompose or convertVarious air pollutants（Generally comprise finishing pollution, bacterium, the anaphylactogen of PM2.5, dust, pollen, peculiar smell, formaldehyde etcDeng）, the product of air cleanliness is effectively improved, is broadly divided into family expenses, commercialization, industry, building.
There are a variety of different technologies and medium in air purifier, enable it to provide a user the sky of cleaning and safetyGas.Conventional air purifying process has：Adsorption technology, bear（Just）Ion technology, catalysis technique, photocatalyst technology, superstructure lightMineralising technology, HEPA high efficiency filters technology, electrostatic precipitation technology etc.；Material technology mainly has：Photocatalyst, activated carbon, synthesis are fineDimension, the efficient materials of HEAP, anion generator etc..Existing air purifier is adopted to be compound more, i.e., employs simultaneously a variety ofPurification techniques and material medium.
Screen pack is the core component of air purifier, and existing air purifier is usually to each screen pack on the marketSimple stack combinations, client needs to adjust one by one in replacing with for later stage, cumbersome, and filter effect is notVery well, while the waste on raw material is caused.For example, the screen pack of activated carbon, is mostly to have many meshes, activity is inserted in meshCharcoal particle, but because vertical direction is placed when using, therefore be affected by gravity under activated carbon granule can be deposited in meshPortion, and the space of the upper end in mesh will be larger, therefore actual filter effect will decline, and this simple set needsSubstantial amounts of activated carbon granule is inserted, causes the waste of raw material.
The content of the invention
In order to overcome the above-mentioned deficiency of existing airstrainer, the utility model provides a kind of composite air purification filteringNet.
The technical scheme in the invention for solving the technical problem is：A kind of composite air filtering screen, including it is outerFrame, the outer inframe are sequentially provided with HEPA filter layer and activated carbon filter layer, and described activated carbon filter layer includes honeycombThe base frame of shape, the base frame have some meshes, are provided with described mesh along the inclined thin net in air intake direction, and the thin net is by netEye is separated into first area and second area, and activated carbon granule is provided with described first area.
Further, drier is provided with described first area.
Further, it is provided with fuisw rib in described second area.
Further, described second area is separated into upper air inlet portion, middle inlet section and lower inlet section by described fuisw rib,The intake of the middle inlet section is more than the intake in the upper air inlet portion and the intake of lower inlet section.
The beneficial effects of the utility model are：By first area and the structure of second area, ensureing good purificationThe usage amount of activated carbon granule is less in the case of effect, and air pass through it is more efficient.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of another angle of the utility model.
Fig. 3 is sectional view of the present utility model.
Fig. 4 is the enlarged drawing of part A in Fig. 3.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
1~Fig. 4 of reference picture, a kind of composite air filtering screen, including housing 1, it is sequentially provided with the housing 1HEPA filter layer 2 and activated carbon filter layer 3, described activated carbon filter layer 3 include cellular base frame, and the base frame hasMesh 4 is separated into the firstth area by some meshes 4, interior be provided with of described mesh 4 along the inclined thin net 5 in air intake direction, the thin net 5Domain 6 and second area 7, described first area 6 is interior to be provided with activated carbon granule 8.Preferably, by the diagonal of mesh 4 by net4 points of second areas 7 for top first area 6 and on the lower of eye, so may be such that the air of entrance can be all by activityThe absorption of charcoal particle 8 enters back into HEPA filter layer 2, and the loading of activated carbon granule 8 greatly reduces, and is produced into so as to reduceThis.
In the present embodiment, drier 9 is provided with described first area 6.Because activated carbon adsorbs in a dry environmentAbility more preferably, therefore can lift by the drier 9 effect of air filtration.Simultaneously as heat can be distributed after activated carbon water suctionAmount, causes the risk of spontaneous combustion, by the setting of the drier 9, can prevent the generation of activated carbon spontaneous combustion.
In the present embodiment, fuisw rib 10 is provided with described second area 7.Preferably, described fuisw rib 10 is by described inSecond area 7 be separated into upper air inlet portion 11, middle inlet section 12 and lower inlet section 13, the intake of the middle inlet section 12 is more thanThe intake in the upper air inlet portion 11 and the intake of lower inlet section 13.Due to the special structure of mesh 4, with reference to the flowing of airProperty and activated carbon granule 8 adsorption effect, draw synthetic filter effect obtained by the air entered from the middle part of first area 6 mostIt is good, therefore we carry out water conservancy diversion by the setting of fuisw rib 10 to air intake so that therefrom inlet section 12 imports first to a large amount of air intakesThe middle part in region 6, so as to obtain preferable filter effect.
The utility model is more conducively dismounted in use, two kinds of different filter layers are combined with each other.Traditional activated carbon mistakeThus filtering layer 3 can cause the top of mesh 4 to pass through due to that can be deposited in the bottom of mesh 4 by Action of Gravity Field, its activated carbon granule 8Air purification effect decline, and the lower air of mesh 4 is reduced by efficiency, so that it use more activated carbonsParticle 8 does not reach good clean-up effect but；The utility model is then the structure by first area 6 and second area 7, is being protectedIt is less to demonstrate,prove the usage amount of activated carbon granule 8 in the case of good clean-up effect, and air pass through it is more efficient.