CN211521777U - Filter cloth and filter element - Google Patents
Filter cloth and filter element Download PDFInfo
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- CN211521777U CN211521777U CN201921615026.1U CN201921615026U CN211521777U CN 211521777 U CN211521777 U CN 211521777U CN 201921615026 U CN201921615026 U CN 201921615026U CN 211521777 U CN211521777 U CN 211521777U
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Abstract
The utility model discloses a filter cloth and filter core is provided with on this filter cloth along a plurality of first filtration pore rows that set up of column direction interval, every first filtration pore row includes along a plurality of first filtration pores that set up with column direction vertically row direction interval, and first filtration pore is rectangular form, and extends along the incline direction of relative row direction, and at least two first filtration pores of crossing in the row cross each other for the incline direction of row direction. The utility model discloses a set up a plurality of first filtration pore rows of crossing that set up along the direction interval of being listed as on the filter cloth, wherein each filters the pore row and includes a plurality of first filtration pores that set up along the direction interval of going, first filtration pore is rectangular form, and extend along the incline direction of the relative line direction, and the first filtration pore of crossing in two at least first filtration pore rows is crossed for the incline direction of line direction each other, can make the resistance that the rivers of flowing through the filter cloth received diminish, the velocity of flow becomes fast, thereby improve purifier's water purification efficiency, reduce pressure loss.
Description
Technical Field
The utility model relates to a water purification technical field, in particular to filter cloth and filter core.
Background
With the improvement of living standard, the quality requirement of people on domestic water is higher and higher. Impurities, harmful substances and the like in the domestic water can be filtered through the water purifying device, so that the domestic water is purified. The water purifier is mainly used for filtering through a filter element, and the structure and the quality of the filter element directly influence the filtering effect.
The inventor of the application finds that the existing filter element is generally in a roll type structure and mainly comprises filter cloth and a reverse osmosis membrane in long-term research and development. Wherein, the filter cloth is a weaving structure, the porosity is generally 20% to 30%, the resistance is large, the water flow speed passing through the filter cloth is slow, and the pressure loss of the water purifier is large.
SUMMERY OF THE UTILITY MODEL
The utility model provides a filter cloth and filter core to solve the too big technical problem of filter cloth resistance among the prior art.
In order to solve the technical problem, the utility model discloses a technical scheme provide a filter cloth, be provided with on the filter cloth along a plurality of first filtration pore row of crossing that the row direction interval set up, every first filtration pore row include along with a plurality of first filtration pores that row direction vertically line direction interval set up, first filtration pore is rectangular form, and follows relatively the incline direction of line direction extends, and at least two in the first filtration pore row first filtration pore for the incline direction of line direction is criss-cross each other.
In a specific embodiment, the at least two rows of first filter holes are arranged axisymmetrically with respect to an axis of symmetry extending in the row direction.
In a specific embodiment, at least one second filtering hole row is further disposed on the filter cloth, each second filtering hole row includes a plurality of second filtering holes disposed at intervals along the row direction, the second filtering holes are long and extend along the row direction, and the second filtering hole row and the first filtering hole row are disposed at intervals along the column direction.
In a specific embodiment, the filter cloth is provided with a plurality of second filter hole rows arranged at intervals along the column direction, and at least part of the first filter hole rows are spaced by the second filter hole rows.
In a specific embodiment, at least one third filtering hole row is further disposed on the filter cloth, each third filtering hole row includes a plurality of third filtering holes disposed at intervals along the row direction, the third filtering holes are X-shaped, and the third filtering hole row and the second filtering hole row are disposed at intervals along the column direction.
In a specific embodiment, at least a portion of the second row of filter apertures is spaced apart by the third row of filter apertures.
In a specific embodiment, at least a part of the third filtering hole rows are arranged along the column direction and close to two side edges of the filter cloth, and are used for filling adhesive to fix the filter cloth and a reverse osmosis membrane.
In a specific embodiment, the width of the first filtering holes along the direction perpendicular to the extending direction of the first filtering holes is 0.2mm to 0.4mm, and the inclination angle of the first filtering holes with respect to the row direction is 15 ° to 175 °.
In a specific embodiment, the width of the second filtering holes along the column direction is 0.2mm to 0.4mm, the minimum distance between the second filtering holes along the column direction is 1mm to 1.9mm, the minimum distance between the second filtering holes and the first filtering holes along the column direction is 1mm to 1.25mm, the width of the third filtering holes along the direction perpendicular to the extension direction of the third filtering holes is 0.2mm to 0.4mm, the size of the third filtering holes along the row direction is 5.5mm to 5.7mm, the minimum distance between the third filtering holes along the row direction is 1.8mm to 2.3mm, and the minimum distance between the third filtering holes and the second filtering holes along the column direction is 1mm to 1.25 mm.
In order to solve the technical problem, the utility model discloses an another technical scheme provide a filter core, including stay tube, the first reverse osmosis membrane, filter cloth, second reverse osmosis membrane and the graticule mesh that stack gradually the setting in proper order, the first end of first reverse osmosis membrane, filter cloth, second reverse osmosis membrane and graticule mesh with the stay tube is connected, the filter cloth with the second end and the connection that first end is relative the both sides edge of first end and second end pass through the adhesive respectively with first reverse osmosis membrane and second reverse osmosis membrane paste and connect, first reverse osmosis membrane, filter cloth, second reverse osmosis membrane and graticule mesh are around locating on the stay tube, wherein the filter cloth is foretell filter cloth, the line direction does the interval direction of first end and second end.
The utility model discloses a set up a plurality of first filtration pore rows of crossing that set up along the direction interval of being listed as on the filter cloth, wherein each filters the pore row and includes a plurality of first filtration pores that set up along the direction interval of going, first filtration pore is rectangular form, and extend along the incline direction of the relative line direction, and the first filtration pore of crossing in two at least first filtration pore rows is crossed for the incline direction of line direction each other, can make the resistance that the rivers of flowing through the filter cloth received diminish, the velocity of flow becomes fast, thereby improve purifier's water purification efficiency, reduce pressure loss.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
FIG. 1 is a schematic structural view of an embodiment of a filter cloth according to the present invention;
FIG. 2 is an enlarged, partial schematic view of the filter cloth of FIG. 1;
FIG. 3 is a schematic diagram showing the comparison of the flow rates of the hollow-out filter cloth of the present invention and the original filter cloth of the prior art under different water inlet pressures;
FIG. 4 is a schematic diagram showing the comparison of the membrane front pressure and the flow rate at different operation times between the hollow-out filter cloth of the present invention and the original filter cloth and the hydrophilic filter cloth of the prior art;
fig. 5 is a schematic structural diagram of an embodiment of the filter element of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
The terms "first" and "second" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. While the term "and/or" is merely one type of association that describes an associated object, it means that there may be three types of relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Referring to fig. 1, in an embodiment of the filter cloth 100 of the present invention, a plurality of first filtering hole rows are disposed on the filter cloth 100 at intervals along a column direction, each first filtering hole row includes a plurality of first filtering holes 110 disposed at intervals along a row direction perpendicular to the column direction, the first filtering holes 110 are in a long strip shape and extend along an oblique direction of an opposite row direction, and the first filtering holes 110 in at least two first filtering hole rows intersect with each other relative to the oblique direction of the row direction.
The embodiment of the utility model provides a through set up a plurality of first filtration pore rows that set up along the column direction interval on filter cloth 100, wherein each filters the pore row and includes a plurality of first filtration pores 110 that set up along the row direction interval, first filtration pore 110 is rectangular form, and extend along the incline direction of relative row direction, and the first filtration pore 110 of filtering in at least two first filtration pore rows is crossed for the incline direction of row direction each other, can make the resistance that the rivers that flow through filter cloth 100 received diminish, the velocity of flow becomes fast, thereby improve purifier's water purification efficiency, reduce pressure loss.
In the present embodiment, the longitudinal direction of the filter cloth 100 is set as the row direction, and the width direction of the filter cloth 100 is set as the column direction.
In this embodiment, the at least two rows of first filter holes are arranged axisymmetrically with respect to an axis of symmetry extending in the row direction. Specifically, every two first filter hole rows may form first filter hole row groups extending in the same direction, and two adjacent first filter hole row groups are disposed in axial symmetry with respect to a symmetry axis extending in the row direction. Through with the first filter hole line group axial symmetry setting, can balance the rivers direction of flowing through filter cloth 100 for rivers are more steady, filter more high-efficiently.
In other embodiments, two adjacent first filtering hole rows may also be disposed non-axisymmetrically, and are not limited herein.
In this embodiment, at least one second filtering hole row is further disposed on the filter cloth 100, each second filtering hole row includes a plurality of second filtering holes 120 disposed at intervals along the row direction, the second filtering holes 120 are long and extend along the row direction, and the second filtering hole row and the first filtering hole row are disposed at intervals along the column direction.
In this embodiment, the filter cloth 100 is provided with a plurality of second filter hole rows spaced along the column direction, and at least some of the first filter hole rows are spaced by the second filter hole rows.
In this embodiment, at least one third filtering hole row is further disposed on the filter cloth 100, each third filtering hole row includes a plurality of third filtering holes 130 disposed at intervals along the row direction, the third filtering holes 130 are X-shaped, and the third filtering hole row and the second filtering hole row are disposed at intervals along the column direction.
In this embodiment, at least some of the second rows of filter apertures are spaced apart by a third row of filter apertures.
In the present embodiment, the width w1 of the first filter aperture 110 in a direction perpendicular to the extension direction of the first filter aperture 110 is 0.2mm to 0.4mm, such as 0.2mm, 0.25mm or 0.4 mm. The width w2 of the second filtering aperture 120 in the column direction is 0.2mm to 0.4mm, for example 0.2mm, 0.3mm or 0.4 mm. The width w3 of the third filter aperture 130 in a direction perpendicular to the extension of the third filter aperture 130 is 0.2mm to 0.4mm, such as 0.2mm, 0.35mm or 0.4 mm. By setting w1, w2, and w3 to 0.2mm to 0.4mm, it is possible to make the filter cloth 100 itself have sufficient supporting force to support other filter layers such as a reverse osmosis membrane while ensuring the filtering effect of the filter cloth 100.
In the present embodiment, the first filter holes 110 are inclined at an angle α of 15 ° to 175 °, for example, 15 °, 60 °, or 175 °, with respect to the row direction. By setting α to 15 ° to 175 °, the first filter holes 110 experience less resistance to the passage of water and are faster than the filter holes extending in the row direction (e.g., the second filter holes 120).
The dimension l of the third filtering holes 130 in the row direction is 5.5mm to 5.7mm, for example 5.5mm, 5.6mm or 5.7 mm. By setting l to 5.5mm to 5.7mm, it is possible to allow the water flow to rapidly flow through the third filtering holes 130 while securing the filtering effect of the filter cloth 100.
In the present embodiment, the minimum spacing d1 between the second filtering holes 120 in the column direction is 1mm to 1.9mm, for example 1mm, 1.5mm or 1.9 mm. The minimum spacing d2 in the column direction between the second filter holes 120 and the first filter holes 110 is 1mm to 1.25mm, such as 1mm, 1.1mm, or 1.25 mm. The minimum distance d3 between the third filter holes 130 in the row direction is 1.8mm to 2.3mm, and the minimum distance d4 between the third filter holes 130 and the second filter holes 120 in the column direction is 1mm to 1.25 mm. By limiting the distance between the first filtering holes 110, the second filtering holes 120 and the third filtering holes 130, the number of the first filtering holes 110, the second filtering holes 120 and the third filtering holes 130 is large enough to make the water flow speed faster, and simultaneously, the problem that the fibers constituting the filter cloth 100 are easily broken due to the close distance between the first filtering holes 110, the second filtering holes 120 and the third filtering holes 130 can be avoided.
In this embodiment, at least some of the third filtering hole rows are disposed near two side edges of the filter cloth 100 along the column direction, and are used for filling an adhesive to fix the filter cloth 100 and the reverse osmosis membrane. By setting l to 5.5mm to 5.7mm, the adhesive connecting the filter cloth 100 and the reverse osmosis membrane is also allowed to penetrate through the third filtering holes 130.
In other embodiments, third filter hole rows may be disposed near at least one end edge of the filter cloth 100 in the row direction, and each of the third filter hole rows includes a plurality of third filter holes 130 disposed at intervals in the row direction for filling an adhesive to fix the filter cloth 100 to a reverse osmosis membrane.
In this embodiment, at least some of the third filtering hole rows are disposed away from the two side edges of the filter cloth 100 in the column direction, so as to allow the water to pass through, and the water can form a vortex under the action of the third filtering holes 130, so as to increase the impact force of the water and further increase the flow velocity of the water.
In this embodiment, the first filtering holes 110, the second filtering holes 120 and the third filtering holes 130 may be re-processed based on the original filter cloth of the prior art, so that the porosity of the filter cloth 100 reaches 40% to 60%, for example, 40%, 50% or 60%.
Referring to fig. 3, the hollowed filter cloth, that is, the filter cloth 100 in the present application, is compared with the original filter cloth in the prior art, under the same water inlet pressure, the water flow rate of the filter cloth 100 is greater than that of the original filter cloth, and in the process that the water inlet pressure is increased from 0 to 1MPa, the difference between the water flow rate of the filter cloth 100 and the water flow rate of the original filter cloth is gradually increased.
Referring to fig. 4, compared to the original filter cloth and the hydrophilic filter cloth in the prior art, the hollowed filter cloth, that is, the filter cloth 100 in the present application, has the smallest water flow rate of the hydrophilic filter cloth when operating for 5min under the same water inlet pressure, the larger water flow rate of the original filter cloth, and the largest water flow rate of the filter cloth 100; when the filter cloth runs for 30min, the water flow of the original filter cloth is the smallest, the water flow of the hydrophilic filter cloth is larger, and the water flow of the filter cloth 100 is the largest. It can be seen from the above experimental data that the filter cloth 100 in the present application is compared with the original filter cloth or hydrophilic filter cloth in the prior art, the water flow rate is significantly increased, the filtering efficiency is higher, and the pressure loss can be reduced.
Referring to fig. 5, the embodiment of the filter element of the present invention includes a support tube 200, a first reverse osmosis membrane 300, a filter cloth 100, a second reverse osmosis membrane 400 and a grid 500, the first end of the first reverse osmosis membrane 300, the filter cloth 100, the second reverse osmosis membrane 400 and the grid 500 is connected to the support tube 200, the second end of the filter cloth 100 opposite to the first end and the two side edges of the first end and the second end are adhered to the first reverse osmosis membrane 300 and the second reverse osmosis membrane 400 respectively by an adhesive, the first reverse osmosis membrane 300, the filter cloth 100, the second reverse osmosis membrane 400 and the grid 500 are wound on the support tube 200, wherein the structure of the filter cloth 100 is referred to the embodiment of the filter cloth 100, which is not repeated herein.
In the present embodiment, the row direction is a spacing direction of the first end and the second end.
The embodiment of the utility model provides a through set up a plurality of first filtration pore rows that set up along the column direction interval on filter cloth 100, wherein each filters the pore row and includes a plurality of first filtration pores 110 that set up along the row direction interval, first filtration pore 110 is rectangular form, and extend along the incline direction of relative row direction, and the first filtration pore 110 of filtering in at least two first filtration pore rows is crossed for the incline direction of row direction each other, can make the resistance that the rivers that flow through filter cloth 100 received diminish, the velocity of flow becomes fast, thereby improve purifier's water purification efficiency, reduce pressure loss.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The filter cloth is characterized in that a plurality of first filter hole rows are arranged on the filter cloth at intervals along the column direction, each first filter hole row comprises a plurality of first filter holes arranged at intervals along the row direction vertical to the column direction, the first filter holes are long-strip-shaped and extend along the inclined direction of the row direction, and at least two first filter holes in the first filter hole rows are crossed with each other relative to the inclined direction of the row direction.
2. The filter cloth according to claim 1, wherein the at least two rows of first filter holes are arranged axisymmetrically with respect to an axis of symmetry extending in the row direction.
3. The filter cloth according to claim 1, further comprising at least one second filter hole row, each second filter hole row comprising a plurality of second filter holes spaced apart in the row direction, the second filter holes being elongated and extending in the row direction, the second filter hole row being spaced apart from the first filter hole row in the column direction.
4. The filter cloth according to claim 3, wherein a plurality of second filter hole rows are arranged on the filter cloth at intervals along the column direction, and at least a part of the first filter hole rows are spaced by the second filter hole rows.
5. The filter cloth according to claim 4, wherein at least one third filter hole row is further provided on the filter cloth, each third filter hole row comprises a plurality of third filter holes arranged at intervals along the row direction, the third filter holes are X-shaped, and the third filter hole row and the second filter hole row are arranged at intervals along the column direction.
6. The filter cloth of claim 5, wherein at least some of the second rows of filter holes are separated by the third rows of filter holes.
7. The filter cloth of claim 5, wherein at least some of the third filter hole rows are disposed near both side edges of the filter cloth in the column direction, and are used for filling an adhesive to fix the filter cloth to a reverse osmosis membrane.
8. The filter cloth according to claim 1, wherein the first filter holes have a width of 0.2mm to 0.4mm in a direction perpendicular to the extension direction of the first filter holes, and the first filter holes are inclined at an angle of 15 ° to 175 ° with respect to the row direction.
9. The filter cloth according to claim 5, wherein the second filter holes have a width in the column direction of 0.2mm to 0.4mm, the second filter holes have a minimum spacing therebetween in the column direction of 1mm to 1.9mm, the second filter holes have a minimum spacing therebetween in the column direction of 1mm to 1.25mm, the third filter holes have a width in a direction perpendicular to an extension direction of the third filter holes of 0.2mm to 0.4mm, the third filter holes have a dimension in the row direction of 5.5mm to 5.7mm, the third filter holes have a minimum spacing therebetween in the row direction of 1.8mm to 2.3mm, and the third filter holes have a minimum spacing therebetween in the column direction of 1mm to 1.25 mm.
10. A filter element is characterized by comprising a support pipe, a first reverse osmosis membrane, filter cloth, a second reverse osmosis membrane and a grid, wherein the first end of the first reverse osmosis membrane, the filter cloth, the second reverse osmosis membrane and the grid are sequentially arranged in a stacked mode, the first end of the first reverse osmosis membrane, the filter cloth, the second reverse osmosis membrane and the grid are connected with the support pipe, the second end, opposite to the first end, of the filter cloth is connected with the two side edges of the first end and the second end through adhesives, the first reverse osmosis membrane and the second reverse osmosis membrane are respectively connected in a sticking mode, the first reverse osmosis membrane, the filter cloth, the second reverse osmosis membrane and the grid are arranged on the support pipe in a winding mode, the filter cloth is the filter cloth according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921615026.1U CN211521777U (en) | 2019-09-25 | 2019-09-25 | Filter cloth and filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921615026.1U CN211521777U (en) | 2019-09-25 | 2019-09-25 | Filter cloth and filter element |
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| Publication Number | Publication Date |
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| CN211521777U true CN211521777U (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921615026.1U Active CN211521777U (en) | 2019-09-25 | 2019-09-25 | Filter cloth and filter element |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110771476A (en) * | 2019-10-25 | 2020-02-11 | 西安交通大学 | Diagonal filtering type irrigator |
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2019
- 2019-09-25 CN CN201921615026.1U patent/CN211521777U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110771476A (en) * | 2019-10-25 | 2020-02-11 | 西安交通大学 | Diagonal filtering type irrigator |
| CN110771476B (en) * | 2019-10-25 | 2022-01-25 | 西安交通大学 | Diagonal filtering type irrigator |
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