CN210186650U

CN210186650U - Removable medium that purifies removes formaldehyde air purifier filter core

Info

Publication number: CN210186650U
Application number: CN201920337403.3U
Authority: CN
Inventors: Chunlei Ma; 马春磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-14
Filing date: 2019-03-14
Publication date: 2020-03-27
Anticipated expiration: 2029-03-14

Abstract

A filter element of a formaldehyde-removing air purifier with replaceable purifying media can be used for removing formaldehyde in rooms or automobiles which are particularly suitable for being used after decoration in different occasions. The filter core can divide into filter layer, decomposition layer and adsorbed layer in proper order according to the function along the air flow direction, constitute by adsorption medium such as filter screen, the alumina ball that carries oxidation catalyst such as potassium permanganate etc. and the active carbon of high iodine value respectively for intercept particulate matter, decompose gaseous pollutant and absorb gaseous pollutant or its decomposition product that are not decomposed by the decomposition layer, simultaneously, decomposition layer, adsorbed layer are equipped with the material changing mouth, can conveniently change purification medium such as oxidation catalyst and the adsorption medium that filter core inside became invalid. The filter core except filterable particle pollution, still have the gaseous pollutant function such as decomposition adsorption formaldehyde, benzene, toluene to can convenient judgement use terminal point, conveniently change its inside purification media, can reduce use cost, reinforcing purifying effect by a wide margin and realize the reuse of filter core.

Description

Removable medium that purifies removes formaldehyde air purifier filter core

Technical Field

The utility model belongs to air purifier filter core production field. In particular to an air purifier filter element which has the functions of filtering particulate pollutants, decomposing and adsorbing gaseous pollutants, can indicate the use state, is convenient to disassemble and assemble, is convenient to replace the purifying medium and can be repeatedly utilized, greatly enhances the purifying effect and reduces the use cost.

Background

With the enhancement of social environmental awareness, the problem of air pollution is more and more important, and especially the overproof benzene series such as formaldehyde, benzene, toluene and the like caused by decoration is a main cause of indoor and in-car air pollution. Because the release of formaldehyde, benzene, toluene and the like is carried out slowly for a long time, for example, the release period of formaldehyde is as long as 3-15 years, an effective treatment method capable of solving the indoor and in-car air pollution, especially the decoration pollution, is still lacked at present.

The air purifier can filter particle pollutants in air such as floating dust, PM2.5 and the like through the filter screen, and can absorb gaseous pollutants such as formaldehyde, benzene, toluene and the like through adsorption media such as activated carbon and the like in the filter element. However, the adsorption medium can only temporarily capture but can not separate the desorbed gaseous pollutants, the gaseous pollutants can be released again to form secondary pollution after the room temperature rises or the adsorption reaches saturation, and particularly, in the newly decorated room, because the concentration of the gaseous pollutants in the air is high, the filter elements can be saturated in adsorption within several to hundreds of hours according to different filling amounts of the adsorption medium in different filter elements, so that the purification capacity is lost.

Present air purifier filter core all adopts integrated into one piece, can't change inside adsorption medium, and the user can't judge whether inside adsorption medium of filter core still has adsorption efficiency, the user can only regularly abandon the filter core and purchase new filter core, because the filter core inefficacy is fast, and can't effectively judge the use terminal point, lead to present air purifier's use cost high, it is poor to gaseous pollutant's purifying effect, and the filter core of abandoning has formed new solid waste, cause the waste of resource.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide one kind except can the filtered air in the particle pollution, still have the gaseous pollutant function such as decomposition adsorption formaldehyde, benzene, toluene to can judge conveniently that use terminal point, dismantlement are convenient, conveniently change its inside purification media, reduce use cost, reinforcing purifying effect and realize reuse's air purifier filter core. Can be used for air purification in different occasions such as rooms and automobiles, and is particularly suitable for removing formaldehyde in rooms which are built after decoration or newly purchased automobiles.

The technical scheme of the utility model is that:

a filter element of a formaldehyde-removing air purifier with a replaceable purifying medium can be sequentially divided into a filter layer, a decomposition layer and an adsorption layer according to functions along the air flowing direction. The filter layer adopts the filter screen to intercept large particle suspended solids such as floating dust, hair and particulate matters such as PM2.5 in the air, and the gaseous pollutants such as formaldehyde, benzene, toluene in the decomposition layer adopts oxidation catalysis medium decomposition air current, and the adsorption layer adopts adsorption medium to absorb gaseous pollutants or its decomposition product that are not decomposed by the decomposition layer, ensures the purifying effect of air. Meanwhile, the decomposition layer and the adsorption layer are provided with material exchange ports for removing purification media such as ineffective oxidation catalysis media and adsorption media inside the filter element and adding fresh purification media.

In the above scheme, the filter layer is composed of one or more of polymer filter screens such as PP melt-blown fibers, glass fiber filter screens, chemical fiber filter screens and the like, and the filter screens can adopt a flat laying mode or an M-shaped folding mode and the like.

In the scheme, the purification media filled in the decomposition layer are activated carbon, zeolite, alumina balls and the like loaded with oxidizing agents such as potassium permanganate or oxidation catalysts such as heavy metals and biological enzymes, and the alumina balls loaded with potassium permanganate are preferred.

In the above scheme, the purification media filled in the adsorption layer are activated carbon, molecular sieve and other adsorption media, preferably coconut shell activated carbon or columnar activated carbon with high iodine value.

In the above scheme, the filter element can be provided with part or all of the filter layer, the decomposition layer and the adsorption layer according to actual needs.

In the above scheme, the material changing ports of the decomposition layer and the adsorption layer are openable sealing covers (rings) arranged on the side surfaces or the upper parts, and are preferably arranged on the upper parts. Sealed lid (circle) paste, mode such as mechanical fastening or magnet absorption and body coupling and conveniently open, the preferred mode of magnet absorption through the magic. For plate-type or cylindrical filter elements, the replacement of the purification medium can also be carried out by directly opening and fixing the combination surface of the decomposition layer and the adsorption layer.

In the above scheme, the decomposition layer and the adsorption layer adopt high polymer materials such as paper boards, metals, PVC, PP and the like as an outer frame, and sealing materials such as sponge, artificial leather, rubber and the like are arranged outside the outer frame. The air circulation surface of the decomposition layer and the adsorption layer is provided with a metal net, a glass fiber filter screen, a nylon net and other polymer material nets which are used as interlayer separation and fixing purification media, and at least one selected surface is provided with the metal net or the hard polymer material net to play a role in fixing the filter element.

In the above scheme, the inner space of the filter element is separated by the partition formed by the combination of rectangle, S-shaped, circle and quadrangle, hexagon, octagon and quadrangle inside the decomposition layer and the adsorption layer, and the purification medium is separated and fixed, so that the partition formed by the combination of octagon and quadrangle is preferred for reducing the inner pores and increasing the filling amount of the purification medium.

In the scheme, the thickness ratio of the decomposition layer to the adsorption layer is 2: 1-1: 3.

In the above scheme, the shape of the filter element can be set into different shapes such as a plate type and a cylindrical type and different sizes according to actual needs.

The utility model discloses following beneficial effect has:

1. the purifying medium in the filter element can be replaced, and the use cost is reduced. Be different from the one-time shaping of current air purifier filter core, adsorption media such as inside active carbon can not be changed, the utility model discloses a be equipped with the sealed lid (circle) that can open on the filter core, can change adsorption media and decomposition medium such as the active carbon that adsorb saturation back or became invalid conveniently through sealed lid (circle) to avoid the user to purchase new air purifier filter core at every turn, contrast air purifier filter core change, the cost of changing inside medium is only less than the ten minutes of brand-new filter core price.

2. The decomposition and the adsorption are carried out in two steps, so that gaseous pollutants such as formaldehyde and the like can be effectively decomposed, and secondary pollution is prevented. Compare in the gaseous state pollutant in the adsorption of adsorption media such as active carbon in the air only in the present air purifier filter core, and adsorb the saturated back very easily and release the shortcoming that forms secondary pollution again, the utility model discloses a set up decomposition layer and adsorbed layer, increase gaseous pollutant's catalytic oxidation step, gaseous pollutant such as formaldehyde is thoroughly decomposed after through the alumina ball that is loaded with potassium permanganate etc. stops to form secondary pollution's possibility, adsorbs a small amount of gaseous pollutant not decomposed by the hierarchical layer through adsorption media such as active carbon simultaneously, avoids the filter core to adsorb the saturation rapidly, strengthens the purifying effect to gaseous pollutant greatly.

3. The accumulated purifying amount of the gaseous pollutants is tens of times of that of the existing products, and the purifying effect is good. Compare in current domestic air purifier filter core only slightly to be greater than 1500mg to formaldehyde accumulative total purification volume, the utility model discloses an if carry potassium permanganate's alumina ball, about 19g formaldehyde can be decomposed to 1kg at most, the same filter core can reach more than 10 times of current product to gaseous pollutant's purifying power, can the change frequency of significantly reduced filter core, further reduce air purifier's use cost, reduce the pollution that the filter core caused when untimely is changed simultaneously, the reinforcing is to gaseous pollutant's purifying power.

4. The decomposition layer changes along with the color of the reaction, and the using state can be visually observed. Compare in present air purifier filter core to be difficult to observe, can't effectively judge whether effectual shortcoming of filter core to the adsorption endpoint of gaseous pollutants such as formaldehyde, the utility model discloses the utilization is loaded with the alumina ball of potassium permanganate and gaseous pollutants such as formaldehyde after the reaction colour become black brown's characteristics by mauve, and the user of facilitating the use state of observation filter core that can be directly perceived, swift effectively judges and change the filter core that became invalid, avoids the gaseous pollutants accumulation in air purifier invalid operation, the air.

5. The generation of solid wastes is reduced, and the cyclic utilization of resources is realized. At present integrated into one piece's air purifier filter core inefficacy back, the user can only be abandoned its whole, not only increases use cost, but removes inside adsorption medium inefficacy in addition but other structure intact filter cores that are abandoned promptly become for solid rubbish, has caused the waste of resource, the utility model discloses a filter core frame reuse many times not only reduces use cost, has still reduced solid rubbish's production, avoids causing secondary pollution to the environment.

Drawings

Fig. 1 is a sectional view of a plate type air cleaner filter element, fig. 2 is a view of a refill port of the plate type air cleaner filter element, fig. 3 is a view showing a decomposition layer and an adsorption layer of the plate type air cleaner filter element, and fig. 4 is a view showing a structure of a cylinder type air cleaner filter element.

Detailed Description

The air purifier filter element of the present invention is further described by embodiments with reference to the accompanying drawings.

Example 1: plate type air purifier filter element

As shown in figure 1, the filter element of the plate-type air purifier mainly comprises a filter layer 1-1, a decomposition layer 1-2 and an adsorption layer 1-3 which have the same thickness.

The filter layer 1-1 is a filter screen composed of M-shaped folded glass fiber, the decomposing layer 1-2 is filled with alumina balls with potassium permanganate mass fraction of 8%, and the adsorbing layer 1-3 is filled with coconut shell activated carbon with iodine value greater than 1000.

The shells 4 and 5 of the decomposition layer 1-2 and the adsorption layer 1-3 adopt hard PVC as a frame, sponge is arranged outside the frame to be used as sealing between the filter element and the air purifier, nylon nets of 1x1mm are bonded on the side surfaces 6 and 7 of the decomposition layer 1-2 and the adsorption layer 1-3 to be used as interlayer separation and fixing of alumina balls and active carbon, a glass fiber filter screen is arranged on the side surface 8 of the adsorption layer 1-3 to intercept active carbon powder, and a 2x2mm iron wire net is arranged on the outermost side of the adsorption layer to be used as a support for separation inside the filter element.

As shown in fig. 2 and 3, the upper parts of the decomposition layers 1-2 and the adsorption layers 1-3 are provided with openable

material changing ports

9 and 10 and correspondingly provided with sealing covers 11 and 12, the

material changing ports

9 and 10 and the sealing covers 11 and 12 are provided with magnets 13 for facilitating opening and fixing, in order to better achieve a sealing effect, the upper parts of the sealing covers 11 and 12 are made of hard PVC materials, the lower parts of the sealing covers are sealed by rubber, and the inner parts of the decomposition layers 1-2 and the adsorption layers 1-3 are separated by a partition 14 formed by combining octagons and quadrigons so as to fix alumina balls and activated carbon.

Example 2: cylinder type air purifier filter element

As shown in figure 4, the cylindrical air purifier filter element mainly comprises a filter layer 2-1, a decomposition layer 2-2 and an adsorption layer 2-3.

The filtering layer 2-1 is a washable filter screen and is connected with the outer surface of the decomposing layer 2-2 in a flat laying mode. And alumina balls with the potassium permanganate mass fraction of 8 percent are filled in the decomposition layer 2-2. The adsorption layer 2-3 is filled with columnar activated carbon with iodine value more than 1000. The thickness ratio of the decomposition layer 2-2 to the adsorption layer 2-3 is 1: 2.

The outer shell of the decomposition layer 2-2 and the outer shell of the adsorption layer 2-3 are made of hard PVC as a frame, the inner part of the decomposition layer is separated by an S-shaped partition, a nylon net with 1x1mm is arranged between the two layers to be used as an interlayer partition and fix an alumina ball and active carbon, the inner side surface of the adsorption layer 2-3 is provided with a glass fiber filter screen for intercepting active carbon powder, and the innermost side of the adsorption layer is provided with a wire mesh 15 with 2x2mm as a support of a filter element.

The upper parts of the decomposition layer 2-2 and the adsorption layer 2-3 are provided with material changing ports, and are correspondingly provided with

sealing rings

16 and 17, wherein the

sealing rings

16 and 17 and the material changing ports are opened and fixed through a magnet 18.

Claims

1. The utility model provides a removable medium that purifies removes formaldehyde air purifier filter core, can divide into the filter layer according to the function in proper order along the air flow direction in the filter core, decomposition layer and adsorbed layer, the filter layer adopts the filter screen to the large granule suspended solid in the air like the floating dust, hair and particulate matter intercept like PM2.5, the gaseous pollutant in the gas flow is decomposed to the decomposition layer adoption oxidation catalysis medium like formaldehyde, benzene, toluene, the adsorbed layer adopts adsorbed medium to absorb the gaseous pollutant that is not decomposed by the decomposition layer or its decomposition product, and simultaneously, the decomposition layer, the adsorbed layer is equipped with the material changing mouth, a purification medium for changing filter core inside.

2. The filter element of claim 1, wherein the filter layer is made of one or more of polymer material, glass fiber, and chemical fiber, and the filter can be flat or M-folded.

3. The filter element of air purifier with replaceable purifying medium for removing formaldehyde in claim 1, wherein the purifying medium filled in the decomposing layer is activated carbon, zeolite or alumina balls loaded with oxidant such as potassium permanganate or oxidation catalyst such as heavy metal and biological enzyme.

4. The filter element of formaldehyde-removing air purifier with replaceable purifying medium as claimed in claim 1, wherein the purifying medium filled in the adsorption layer is an adsorption medium, such as activated carbon and molecular sieve.

5. The filter element of the formaldehyde-removing air purifier with the replaceable purifying medium as claimed in claim 1, wherein the filter element is partially or completely provided with a filter layer, a decomposition layer and an adsorption layer according to actual needs.

6. The filter element of the formaldehyde-removing air purifier with the replaceable purifying medium as claimed in claim 1, wherein the material changing ports of the decomposition layer and the adsorption layer are openable sealing covers or sealing rings arranged on the side surface or the upper part, and the sealing covers or the sealing rings are connected with the body in a magic tape, mechanical fixation or magnet adsorption mode and are convenient to open.

7. The filter element of claim 1, wherein the decomposition layer and the adsorption layer are made of cardboard, metal, and polymer material such as PVC and PP as outer frame, the outer frame is provided with sealing material such as sponge, artificial leather, and rubber, the air circulation surfaces of the decomposition layer and the adsorption layer are provided with metal net, glass fiber filter net, and polymer material net such as nylon net as interlayer separation and fixing medium, and at least one selected surface is provided with metal net or hard polymer material net to fix the filter element.

8. The filter element of claim 1, wherein the decomposition layer and the adsorption layer are separated by a partition formed by a combination of rectangle, S-shape, circle and quadrangle, hexagon, octagon and quadrangle, and the oxidation catalyst and the adsorption medium are separated and fixed.

9. The filter element of claim 1, wherein the ratio of the thicknesses of the decomposition layer and the adsorption layer is 2: 1-1: 3.

10. The filter element of formaldehyde-removing air purifier with replaceable purifying medium as claimed in claim 1, wherein the shape of the filter element can be different shapes such as plate type, cylinder type and different sizes.