CN218076932U - Filter screen structure and purifier - Google Patents
Filter screen structure and purifier Download PDFInfo
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- CN218076932U CN218076932U CN202221981463.7U CN202221981463U CN218076932U CN 218076932 U CN218076932 U CN 218076932U CN 202221981463 U CN202221981463 U CN 202221981463U CN 218076932 U CN218076932 U CN 218076932U
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Abstract
The utility model provides a filter screen structure and purifier, this filter screen structure includes: the filter screen comprises a filter screen body, a plurality of holes and a plurality of sealing rings, wherein the filter screen body is provided with a plurality of holes; wherein, the ratio of the sum of the hole wall areas of the plurality of the pore channels to the cross-sectional area of the filter screen body vertical to the conduction direction of the pore channels is more than or equal to 11. The filter screen structure that this application embodiment provided is through setting up the aperture wall area sum and the filter screen body perpendicular to aperture of a plurality of apertures and leading to the cross-sectional area of direction than or equal to 11, can enlarge treat the gas when flowing through the aperture and catalytic material's that the pore wall was arranged area of contact, increase treat the collision probability of pollutant in the gas and catalytic material, improve catalytic material's utilization ratio, promote the purification efficiency that the gas was treated to the filter screen structure, and then be favorable to promoting the purifying effect of the affiliated purifier of filter screen structure.
Description
Technical Field
The utility model relates to an air purification technical field especially relates to a filter screen structure and purifier.
Background
In the related art, in order to treat pollutants in air, a purification device based on a catalytic degradation technology is often used to purify air, that is, a catalytic material for promoting decomposition of pollutants is disposed in a filter screen of the purification device, so that the catalytic material is in contact with the pollutants to promote decomposition of the pollutants, thereby realizing air purification.
However, in practical applications, the utilization rate of the catalytic material in the purifying device is low, so that the purifying efficiency of the purifying device is not high, and the purifying effect is greatly different from the expected effect.
SUMMERY OF THE UTILITY MODEL
The present invention aims at least solving one of the technical problems existing in the prior art or the related art.
Therefore, the utility model discloses a first aspect provides a filter screen structure.
A second aspect of the present invention provides a purification apparatus.
In view of this, according to a first aspect of the embodiments of the present application, there is provided a filter screen structure, including:
the filter screen comprises a filter screen body, a filter screen body and a filter screen, wherein a plurality of pore channels are formed in the filter screen body;
wherein, the ratio of the sum of the hole wall areas of the plurality of the pore channels to the cross-sectional area of the filter screen body perpendicular to the conduction direction of the pore channels is more than or equal to 11.
In a possible embodiment, the ratio of the sum of the hole wall areas of the plurality of holes to the cross-sectional area of the filter screen body perpendicular to the hole passage conducting direction is greater than or equal to 11 and less than or equal to 50.
In one possible embodiment, the pore size of the channels is greater than or equal to 1mm and less than or equal to 4mm.
In one possible embodiment, the cross-sectional area of the cell is greater than or equal to 0.7mm 2 And less than or equal to 13mm 2 。
In a possible embodiment, the thickness of the filter screen body along the channel conducting direction is greater than or equal to 5cm and less than or equal to 30cm.
In one possible embodiment, the porosity of the screen body is greater than or equal to 90% and less than or equal to 99%.
In a possible embodiment, the spacing distance between two adjacent cells is greater than or equal to 0.02mm and less than or equal to 0.1mm.
In one possible embodiment, the screen structure further comprises:
the purification layer is covered on the hole wall of the pore channel;
wherein the purification layer is a metal oxide purification layer.
In one possible embodiment, the purification layer is a manganese oxide purification layer.
In one possible embodiment, the ratio of the sum of the partial pore wall areas of the plurality of cells covered with the purification layer to the sum of the pore wall areas of the plurality of cells is greater than or equal to 80%.
In one possible embodiment, the ratio of the thickness of the purification layer to the height of the channels is less than or equal to 0.2.
According to a second aspect of embodiments of the present application, there is provided a purification apparatus including:
a screen construction as claimed in any one of the preceding first aspects.
Compared with the prior art, the utility model discloses at least, including following beneficial effect: the filter screen structure that this application embodiment provided is including filter screen body, filter screen body is formed with a plurality of tunnels, thereby in the use, can set up the catalytic material who promotes pollutant decomposition on the pore wall that each tunnel corresponds, and set up filter screen structure in purifier's gas passage, and then when purifier operates, treat that the purge gas can flow through filter screen body through the tunnel, and contact with aforementioned catalytic material takes place, promote the pollutant decomposition in the purge gas, so that treat the pollutant content behind filter screen body of purge gas reduction, wherein, through setting up the ratio of the cross-sectional area of the sum of the hole wall area of a plurality of tunnels and filter screen body perpendicular to tunnel conduction direction is greater than 11, can enlarge the catalytic material's that treats purge gas and arrange on the pore wall contact area when flowing through the tunnel, increase the collision probability of pollutant in the purge gas and catalytic material, improve catalytic material's utilization ratio, promote the purification efficiency that the filter screen structure treats purge gas, and then be favorable to promoting filter screen structure affiliated purifier's purification effect.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the exemplary embodiments. The drawings are only for purposes of illustrating exemplary embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a filter screen structure according to an embodiment of the present disclosure;
FIG. 2 isbase:Sub>A schematic cross-sectional view of the screen construction shown in FIG. 1 taken along the direction A-A;
fig. 3 is a schematic block diagram of a duct of a screen structure according to an embodiment of the present disclosure.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:
100 a filter screen body; 200 a purification layer;
101 a duct; 102 walls of the hole.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1 to 3, according to a first aspect of embodiments of the present application, there is provided a screen structure, including: a filter body 100, the filter body 100 having a plurality of openings 101 formed therein; wherein, the ratio of the sum of the areas of the hole walls 102 of the plurality of the hole channels 101 to the cross-sectional area of the filter screen body 100 perpendicular to the conduction direction of the hole channels 101 is greater than or equal to 11.
The filter screen structure that this application embodiment provided is including filter screen body 100, filter screen body 100 is formed with a plurality of tunnels 101, thereby in the use, can set up the catalytic material who promotes pollutant decomposition on the pore wall 102 that each tunnel 101 corresponds, and set up filter screen structure in purifier's gas passage, and then when purifier moves, treat that the gaseous pollutant that can flow through filter screen body 100 through tunnel 101, and contact takes place with aforementioned catalytic material, promote the pollutant decomposition in the gaseous pollutant of taking the purge gas, so that the pollutant content of treating the gaseous pollutant behind filter screen body 100 reduces.
It is understood that, the filter screen structure provided in the embodiment of the present application may be used as a component of a purification apparatus such as an air purifier, an air filter, and the like, in practical applications, the pollutant may be formaldehyde or other organic pollutants, the catalytic material may be a noble metal nano material or a metal oxide, and the catalytic material may be arranged by powdering and making the catalytic material into a slurry, coating the slurry on the pore walls 102 of the pores 101 by spraying or dip-coating, and then adhering the catalytic material to the pore walls 102 of the pores 101 by heat treatment, and the arrangement of the catalytic material may be various, which is not limited herein.
Wherein, the ratio of the sum of the pore wall 102 areas through setting up a plurality of pore canals 101 to the cross-sectional area of filter screen body 100 perpendicular to pore canal 101 direction of conduction is greater than or equal to 11, can make the filter screen structure have great pore wall 102 area, and then be convenient for arrange more catalytic material in practical application, can enlarge treat the catalytic material's that the gas arranges on the pore wall 102 contact area when flowing through pore canal 101 with treating, increase the collision probability of pollutant in the gas and catalytic material of treating, improve catalytic material's utilization ratio, promote the purification efficiency that the gas was treated to the filter screen structure, and then be favorable to promoting the purifying effect that the filter screen structure belongs to purifier. In addition, the area of the hole wall 102 of the filter screen structure can be prevented from being too small, so that the total volume of the plurality of the hole channels 101 is favorably improved, the total quantity of the gas to be purified contained in the plurality of the hole channels 101 is increased, the flow rate and the flow velocity of the gas to be purified flowing through the hole channels 101 are increased in the using process, and the purifying efficiency of the filter screen structure on the gas to be purified is improved.
It can be understood that, an air supply device such as a fan, etc. is usually configured in the purification apparatus, so as to utilize the air supply device to suck external gas to be purified into the purification apparatus, and discharge the purified gas out of the purification apparatus, thereby improving the circulation efficiency of the gas to be purified, the filter screen structure may be arranged along the air suction direction of the air supply device, so as to keep the conduction direction of the duct 101 in a relatively high consistency with the air suction direction of the air supply device, and improve the efficiency of the gas to be purified when passing through the filter screen body 100, so that the cross-sectional area of the filter screen body 100 perpendicular to the conduction direction of the duct 101 may also reflect the windward area of the filter screen body 100, further, the ratio of the sum of the areas of the hole walls 102 of the plurality of ducts 101 to the cross-sectional area of the filter screen body 100 perpendicular to the conduction direction of the duct 101 is set to be greater than or equal to 11, the area of the hole wall 102 in the unit windward area of the filter screen body 100 may be increased, thereby improving the total amount of catalytic material that the catalytic material that can be arranged in the unit windward area of the hole wall 102 of the gas to be purified when flowing through the duct 101, and the catalytic material may be purified, and increasing the total flow rate of the gas to be purified in the purification structure of the filter screen 101, thereby improving the flow rate of the purification efficiency of the gas to be purified, and improving the purification effect of the purification structure, and improving the purification efficiency of the filter screen 101, and improving the purification efficiency of the purification structure, and improving the total purification efficiency of the purification structure, and improving the purification efficiency of the purification structure.
The sum of the areas of the cell walls 102 of the plurality of cells 101 may be calculated according to formula (1), where formula (1) is as follows:
S1＝n*S k (1)
wherein S1 is the sum of the areas of the cell walls 102 of the plurality of cells 101; n is the number of the pore channels 101; s. the k The pore wall 102 area of a single pore channel 101.
Illustratively, as shown in fig. 1-3, wherein, as shown in fig. 1, the screen body 100 may be a continuous honeycomb mesh structure, the mesh extending through the screen body 100 to form the aforementioned plurality of cells 101; in fig. 2, a dimension a represents a depth of the hole 101, it is understood that the aforementioned honeycomb mesh structure may be a plate, the hole 101 may be communicated along a thickness direction of the honeycomb mesh structure, and the dimension a may also be used to represent a thickness of the filter screen body 100; fig. 3 schematically shows a cross section of a single cell 101 when the filter screen body 100 is in the aforementioned honeycomb mesh structure, and if a contour perimeter of the cell walls 102 in the cross section of the cell 101 is b, a sum of areas of the cell walls 102 of the aforementioned plurality of cells 101 may also be calculated according to formula (2), where formula (2) is as follows:
S1＝n*a*b (1)
therefore, it can be easily seen from the formula (2) that the sum of the areas of the pore walls 102 of the plurality of pore channels 101 can be adjusted by controlling the number n of the pore channels 101 on the filter screen body 100, the contour perimeter b of the pore wall 102 in the cross section of the pore channel 101, and the depth a of the pore channel 101, and further, under the condition that the cross sectional area of the filter screen body 100 perpendicular to the conduction direction of the pore channel 101 is constant, the ratio of the sum of the areas of the pore walls 102 of the plurality of pore channels 101 to the cross sectional area of the filter screen body 100 perpendicular to the conduction direction of the pore channel 101 can be changed by adjusting and controlling the above parameters, so as to ensure that the above ratio is greater than or equal to 11. Wherein the adjustment of the contour perimeter of the bore wall 102 in the cross section of the bore 101 may be achieved by varying the bore diameter of the bore 101.
It should be noted that the cross-sectional area of the filter body 100 perpendicular to the communication direction of the cell 101 includes the cross-sectional areas of the plurality of cells 101.
In some possible examples, the cross-section of the duct 101 may be circular or polygonal, such as triangular, quadrilateral, pentagonal, hexagonal, etc. Illustratively, as shown in fig. 2, the cross-section of the channel 101 may be hexagonal. It should be noted that, in the case that the cross section of the duct 101 is a polygon, the aperture of the duct 101 may be characterized by the diameter of the circumscribed circle of the polygon; alternatively, as shown in fig. 1, the dimension d in fig. 1 represents the pore size of the cell 101, and the pore size of the cell 101 can also be characterized by the maximum connection distance between two points on the contour of the cell wall 102 in the cross-section of the cell 101.
It is understood that the cross-section of the channel 101 refers to the channel cross-section perpendicular to the direction of conduction of the channel 101.
In some examples, a ratio of a sum of an area of cell walls 102 of plurality of cells 101 to a cross-sectional area of filter screen body 100 perpendicular to a direction of flow through cells 101 is greater than or equal to 11 and less than or equal to 50.
In the technical scheme, the ratio of the sum of the areas of the hole walls 102 of the plurality of the holes 101 to the cross-sectional area of the filter screen body 100 perpendicular to the conduction direction of the holes 101 is further limited to be greater than or equal to 11 and less than or equal to 50, so that the ratio is further limited not to exceed 50, the problem that the area of the hole walls 102 of the filter screen structure is too large can be avoided, and under the condition that the cross-sectional area of the filter screen body 100 perpendicular to the conduction direction of the holes 101 is certain, the problem that the number of the holes 101 is too large to cause too small aperture of a single hole 101 or cause too large depth of the hole 101 is avoided, the gas passing performance of the filter screen body 100 is ensured, a guarantee is provided for higher flow rate when gas to be purified passes through the filter screen body 100, and the purification efficiency of the filter screen structure is further improved.
As shown in fig. 1, in some examples, the pore size d of the pore channel 101 is greater than or equal to 1mm and less than or equal to 4mm.
In the technical scheme, the aperture d of the pore channel 101 can be set to be greater than or equal to 1mm and less than or equal to 4mm, so that on one hand, the aperture d of the pore channel 101 can be prevented from being too large, so that more pore channels 101 can be conveniently formed on the filter screen body 100 under the condition that the cross section area of the filter screen body 100, which is vertical to the conduction direction of the pore channel 101, is fixed, the ratio of the sum of the areas of the pore walls 102 of a plurality of pore channels 101 to the cross section area of the filter screen body 100, which is vertical to the conduction direction of the pore channel 101, is further improved, in the using process, the excessive amount of gas to be purified in a single pore channel 101 can be avoided, the contact probability of pollutants in the gas with the catalytic material is further improved, the utilization rate of the catalytic material is improved, and the purification effect of the filter screen structure is further improved; on the other hand, the aperture d of the pore passage 101 is also prevented from being too small, so that the resistance of the gas to be purified flowing through the pore passage 101 is avoided from being too large, the gas to be purified flowing through the pore passage 101 is ensured to have higher flow velocity and flow rate, the purification efficiency of the filter screen structure is guaranteed, more catalytic materials are conveniently arranged in the single pore passage 101, and the purification efficiency of the filter screen structure is further improved.
In some examples, the cross-sectional area of the channel 101 is greater than or equal to 0.7mm 2 And is less than or equal to 13mm 2 。
In this embodiment, the cross-sectional area of the hole 101 may be set to be greater than or equal to 0.7mm 2 And less than or equal to 13mm 2 Therefore, on one hand, the cross-sectional area of the duct 101 can be prevented from being too large, so that more ducts 101 can be conveniently formed on the filter screen body 100 under the condition that the cross-sectional area of the filter screen body 100 perpendicular to the conduction direction of the duct 101 is fixed, the ratio of the sum of the areas of the hole walls 102 of the ducts 101 to the cross-sectional area of the filter screen body 100 perpendicular to the conduction direction of the duct 101 is further improved, in the using process, the excessive quantity of gas to be purified in a single duct 101 can be avoided, the contact probability of pollutants in the gas with purification and catalytic materials is further improved, the utilization rate of the catalytic materials is improved, and the purification effect of the filter screen structure is further improved; on the other hand, the cross-sectional area of the duct 101 can be prevented from being too small, so that the resistance of the gas to be purified flowing through the duct 101 is prevented from being too large, the gas to be purified flowing through the duct 101 can have higher flow velocity and flow rate, and more catalytic materials can be conveniently arranged in a single duct 101, thereby providing guarantee for the purification efficiency of the filter screen structure.
As shown in fig. 2, in some examples, a thickness a of the filter screen body 100 along a direction of the opening of the duct 101 is greater than or equal to 5cm and less than or equal to 30cm.
In the technical scheme, the thickness a of the filter screen body 100 along the conduction direction of the duct 101 is greater than or equal to 5cm and less than or equal to 30cm, so as to limit the depth of the duct 101, thereby on one hand, the depth of the duct 101 can be prevented from being too small, so that the ratio of the sum of the areas of the hole walls 102 of a plurality of ducts 101 to the cross-sectional area of the filter screen body 100 perpendicular to the conduction direction of the duct 101 is convenient to improve under the condition that the cross-sectional area of the filter screen body 100 perpendicular to the conduction direction of the duct 101 is certain, and more catalytic materials are convenient to be arranged in a single duct 101, so that the purification effect of the filter screen structure is improved; on the other hand, the depth of the duct 101 can be prevented from being too large, so that the resistance of the gas to be purified flowing through the duct 101 is prevented from being too large, the gas to be purified flowing through the duct 101 can have higher flow speed and flow rate, and the purification efficiency of the filter screen structure is guaranteed.
It is understood that, in conjunction with the foregoing, duct 101 may communicate along the thickness direction of filter body 100, and thus dimension a in fig. 2 may represent the thickness of filter body 100 along the communication direction of duct 101.
In some examples, the porosity of screen body 100 is greater than or equal to 90% and less than or equal to 99%.
In this technical scheme, can set up the porosity that filter screen body 100 is more than or equal to 90% and be less than or equal to 99%, thereby can make pore 101 have higher proportion in filter screen body 100 on the whole, improve filter screen body 100's gas flow performance, promote the flow and the velocity of flow when waiting to purify the gas flow through filter screen body 100, guarantee filter screen structure's purification efficiency, and be favorable to improving the ratio of the pore wall 102 area sum of a plurality of pore 101 and the cross-sectional area of filter screen body 100 perpendicular to pore 101 direction of conduction, promote catalytic material's utilization ratio in the use, strengthen filter screen structure's purifying effect.
It is understood that the porosity of the filter body may be a ratio of a sum of cross-sectional areas of the plurality of cells 101 to a cross-sectional area of the filter body 100 perpendicular to a direction of flow through the cells 101.
In some examples, the separation distance between two adjacent cell channels 101 is greater than or equal to 0.02mm and less than or equal to 0.1mm.
In the technical scheme, the spacing distance between two adjacent pore channels 101 can be set to be greater than or equal to 0.02mm and less than or equal to 0.1mm, so that on one hand, the material thickness of a part of the filter screen body 100 between the two adjacent pore channels 101 can be limited, the occupation ratio of the pore channels 101 in the filter screen body 100 is improved, the ratio of the sum of the areas of the pore walls 102 of the pore channels 101 to the cross-sectional area of the filter screen body 100 perpendicular to the conduction direction of the pore channels 101 is improved, and further, the purification effect of the filter screen structure is guaranteed; on the other hand, the excessive weakening of the structural strength of the filter screen body 100 caused by the excessively small interval between two adjacent pore channels 101 can be avoided, which is beneficial to ensuring the service life of the filter screen structure.
As shown in fig. 3, in some examples, the screen structure further comprises: the purification layer 200 is covered on the hole wall 102 of the pore channel 101; wherein the purification layer 200 is a metal oxide purification layer.
In this technical solution, the filter screen structure may further include a purification layer 200, the purification layer 200 is disposed on the hole wall 102 of the pore channel 101, so that when the gas to be purified flows through the pore channel 101, the gas to be purified is purified by the purification layer 200, so as to reduce the content of the pollutant in the gas to be purified, and the purification layer 200 may be a metal oxide purification layer, so that the purification layer 200 can perform a good decomposition promoting effect on formaldehyde and other organic pollutants in the gas to be purified.
It is understood that the material used for the metal oxide purification layer may be a metal oxide of the aforementioned catalytic materials.
In some examples, the purification layer 200 is a manganese oxide purification layer.
In this technical scheme, purify layer 200 and can purify the layer for the manganese oxide to when the manganese oxide purified the formaldehyde or other organic pollutant in the gas that the layer contact was waited to purify, can utilize the manganese oxide to purify the layer and carry out catalytic oxidation to aforementioned pollutant, wherein, the catalytic oxidation efficiency of manganese oxide to formaldehyde is higher, and then is favorable to pertinence ground to improve the removal effect of filter screen structure to formaldehyde.
In some examples, the ratio of the sum of the areas of the partial cell walls 102 of the plurality of cells 101 overlaid with the cleaning layer 200 to the sum of the areas of the cell walls 102 of the plurality of cells 101 is greater than or equal to 80%.
In the technical scheme, the ratio of the sum of the areas of the partial hole walls 102 covered with the purification layer 200 by the plurality of the holes 101 to the sum of the areas of the hole walls 102 of the plurality of the holes 101 is greater than or equal to 80%, so that the coverage rate of the purification layer 200 on the hole walls 102 can be improved, the contact probability of pollutants and the purification layer 200 can be further improved in use, and the purification effect of the filter screen structure is improved.
As shown in fig. 3, in some examples, the ratio of the thickness c of the purifier layer 200 to the height h of the channels 101 is less than or equal to 0.2.
In this technical scheme, can set up the ratio of the thickness c that purifies layer 200 and the high h of pore 101 and be less than or equal to 0.2 to can avoid purifying layer 200 set up thickness too big, reduce the circulation space of waiting to purify gas in the pore 101, be favorable to guaranteeing to treat the velocity of flow and the flow of purifying the gas, improve the purification efficiency of filter screen structure, also can improve the pollutant and purify layer 200's contact probability simultaneously, improve the utilization ratio that purifies layer 200.
It should be noted that, as shown in FIG. 3, the thickness c of the purification layer 200 refers to the distance between the side of the purification layer 200 away from the pore wall 102 and the pore wall 102; in the case where the cross-section of the duct 101 is an even-sided polygon, the height h of the duct 101 may be a distance between opposite sides of the even-sided polygon; in the case where the cross section of the cell 101 is an odd-sided polygon, the height h of the cell 101 may be the distance between the vertex of the odd-sided polygon and the opposite side of the vertex; in the case where the cross-section of the cell 101 is circular, the height h of the cell 101 may be the pore diameter of the cell 101.
According to a second aspect of embodiments of the present application, there is provided a purification apparatus including: a screen construction as set forth in any one of the above first aspects.
Since the purification device provided by the embodiment of the present application includes the filter screen structure provided in any one of the above first aspects, all beneficial effects of the filter screen structure provided in any one of the above first aspects are achieved, and details are not described herein.
In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, rather than indicating or implying that the indicated device or unit must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A screen construction, comprising:
the filter screen comprises a filter screen body, a filter screen body and a filter screen, wherein a plurality of pore channels are formed in the filter screen body;
and the ratio of the sum of the hole wall areas of the plurality of the hole channels to the cross-sectional area of the filter screen body perpendicular to the conduction direction of the hole channels is more than or equal to 11.
2. The screen structure of claim 1,
the ratio of the sum of the hole wall areas of the plurality of the holes to the cross-sectional area of the filter screen body perpendicular to the conduction direction of the holes is greater than or equal to 11 and less than or equal to 50.
3. The screen structure of claim 1,
the pore diameter of the pore canal is more than or equal to 1mm and less than or equal to 4mm.
4. The screen structure of claim 1,
the cross-sectional area of the pore canal is greater than or equal to 0.7mm 2 And less than or equal to 13mm 2 。
5. The screen structure of claim 1,
the thickness of the filter screen body along the duct conduction direction is greater than or equal to 5cm and less than or equal to 30cm.
6. Screen structure according to claim 1,
the porosity of the filter screen body is greater than or equal to 90% and less than or equal to 99%.
7. The screen structure of claim 1,
the spacing distance between two adjacent pore channels is greater than or equal to 0.02mm and less than or equal to 0.1mm.
8. The screen structure according to any one of claims 1 to 7, further comprising:
the purification layer is covered on the hole wall of the pore channel;
wherein the purification layer is a metal oxide purification layer.
9. The screen structure of claim 8,
the purification layer is a manganese oxide purification layer.
10. The screen structure of claim 8,
the ratio of the sum of the partial pore-wall areas of the plurality of the pores covered with the purification layer to the sum of the pore-wall areas of the plurality of the pores is greater than or equal to 80%.
11. The screen structure of claim 8,
a ratio of a thickness of the purification layer to a height of the channels is less than or equal to 0.2.
12. A purification apparatus, comprising:
a screen construction according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221981463.7U CN218076932U (en) | 2022-07-29 | 2022-07-29 | Filter screen structure and purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221981463.7U CN218076932U (en) | 2022-07-29 | 2022-07-29 | Filter screen structure and purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218076932U true CN218076932U (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221981463.7U Active CN218076932U (en) | 2022-07-29 | 2022-07-29 | Filter screen structure and purifier |
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|---|---|
| CN (1) | CN218076932U (en) |
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2022
- 2022-07-29 CN CN202221981463.7U patent/CN218076932U/en active Active
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