CN217410371U - Pressure-drop-reducing anti-pollution type roll-type membrane water inlet grid - Google Patents
Pressure-drop-reducing anti-pollution type roll-type membrane water inlet grid Download PDFInfo
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- CN217410371U CN217410371U CN202220718441.5U CN202220718441U CN217410371U CN 217410371 U CN217410371 U CN 217410371U CN 202220718441 U CN202220718441 U CN 202220718441U CN 217410371 U CN217410371 U CN 217410371U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The utility model relates to the field of water treatment, in particular to a pressure drop and pollution resistance type roll-type membrane water inlet grid which comprises a plurality of groups of interconnected grid structures, wherein each grid structure comprises two symmetrically arranged net wires which are streamline and comprise a first arc-shaped wire, a second arc-shaped wire and a third arc-shaped wire, the second arc-shaped wire and the third arc-shaped wire are arranged at two ends of the first arc-shaped wire and the second arc-shaped wire, the third arc-shaped wire combination shape is the same as the radian of the first arc-shaped wire, the second arc-shaped wire and the third arc-shaped wire are oppositely arranged in direction, the arc outer side of the first arc-shaped wire is fixedly connected with a short-axis semi-elliptic cylinder, the arc outer sides of the second arc-shaped wire and the third arc-shaped wire are fixedly connected with a long-axis semi-elliptic cylinder, the long-axis semi-elliptic cylinders of adjacent groups of grid structures form an elliptic cylinder connecting piece, and the short-axis semi-elliptic cylinders of adjacent groups of grid structures form an elliptic cylinder connecting piece. The utility model discloses can effectively reduce the passageway pressure drop, reduce the energy consumption, the antipollution ability is good and then improves the infiltration flux.
Description
Technical Field
The utility model relates to a water treatment field, in particular to reduce pressure drop antipollution formula book formula membrane graticule mesh of intaking.
Background
The membrane filtration technology takes pressure difference as driving force, has the characteristics of small occupied area, convenient operation and good effluent quality, and has wide application in a plurality of fields such as wastewater treatment, seawater desalination, pure water preparation and the like. Spiral wound membrane elements are one of the most common forms of membrane processing technology due to their simple structure and high packing density. The spiral-wound membrane mainly comprises a membrane, a permeation grid, a water inlet grid and a central pipe, and the change of the water inlet grid has obvious influences on hydrodynamics, concentration polarization, membrane pollution and the like in a flow channel. The graticule mesh of intaking can promote the rivers torrent on the one hand, reduces concentration polarization, and on the other hand also can increase the pressure drop simultaneously, and when the membrane pollution takes place, the increase of the pressure drop difference that the grid of improper intaking produced is more showing, and the life of loss membrane module makes the permeate flux of membrane module descend. Thus, membrane fouling remains a significant challenge for membrane filtration.
The water inlet grid of the traditional roll-up membrane at present is generally a rhombic network structure, the height of a water inlet channel is generally 0.76mm, and due to a small water inlet channel and an improper geometric structure, the development of membrane pollution is accelerated, the pressure drop of the channel is increased, and the performance of membrane filtration is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reduce pressure drop antipollution formula book formula membrane graticule mesh of intaking to solve above-mentioned problem, can effectively reduce the passageway pressure drop, reduce the energy consumption, the antipollution can be good and then improve the infiltration flux.
In order to achieve the above purpose, the utility model provides a following scheme:
a pressure drop reduction and pollution resistance type roll-type membrane water inlet grid comprises a plurality of groups of mutually connected grid structures, the grid structure comprises two symmetrically arranged net wires, the net wires are in a streamline shape and comprise a first arc-shaped wire, a second arc-shaped wire and a third arc-shaped wire, the second arc-shaped wire and the third arc-shaped wire are arranged at two ends of the first arc-shaped wire, the combined shape of the second arc-shaped wire and the third arc-shaped wire is the same as the radian of the first arc-shaped wire, the second arc-shaped wire and the third arc-shaped wire are arranged in opposite directions, the arc-shaped outer sides of the first arc-shaped wires are fixedly connected with short-axis semi-elliptic cylinders, the arc-shaped outer sides of the second arc-shaped wires and the third arc-shaped wires are fixedly connected with long-axis semi-elliptic cylinders, the long-axis semi-elliptic cylinders of adjacent groups of grid structures form an elliptic cylinder connecting piece, and the short-axis semi-elliptic cylinders of adjacent groups of grid structures form the elliptic cylinder connecting piece.
Preferably, the arc chords of the first arc-shaped wires which are symmetrically arranged are arranged oppositely, the first arc-shaped wires are located in the middle of the side wall of the elliptic cylinder connecting piece, and the second arc-shaped wires and the third arc-shaped wires are located in the middle of the side wall of the elliptic cylinder connecting piece.
Preferably, the elliptic cylinder connecting piece comprises two elliptic cylinders, and the net is positioned between the bottom surfaces and the top surfaces of the two elliptic cylinders.
Preferably, the long axis direction of the elliptic cylinder connecting piece is the same as the arc center connecting line of the first arc-shaped wire which is symmetrically arranged.
Preferably, the diameter of the mesh is 0.05-1.0 mm.
Preferably, the long axis of the elliptic cylinder connector is 0.33-1.13 mm.
Preferably, the minor axis of the elliptic cylinder connector is 0.20-0.50 mm.
Preferably, the height of the elliptic cylinder connector is 0.07-2.00 mm.
Preferably, the height of the elliptic cylinder is 0.20-0.35 mm.
The utility model discloses has following technological effect:
the utility model provides a pair of reduce streamlined net silk of formula membrane graticule mesh of formula of rolling up of pressure drop antipollution can reduce the water resistance, helps improving the fluid dynamics condition, makes velocity of flow distribution even, allows the fluid at node front end and rear end smooth flow, the effectual stagnant area of having eliminated the node.
The shape of the lattice structure allows the water to form secondary flows or vortices near the membrane surface during its passage, which helps to generate sufficient turbulence to clean the membrane surface and enhance the anti-fouling capability of the rolled membrane.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in 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 according to these drawings without inventive labor.
FIG. 1 is a schematic view of a water inlet grid of a prior art rolled membrane;
FIG. 2 is a front view of the water inlet grid of the present invention;
fig. 3 is a schematic perspective view of an embodiment of the water inlet grid of the present invention;
fig. 4 is a schematic view of a three-dimensional structure of an embodiment of the water inlet grid of the present invention.
Wherein, 1, a grid structure; 2. mesh; 201. a first arc wire; 202. a second arc wire; 203. a third arc wire; 3. a short axis semi-elliptic cylinder; 4. a long axis semi-elliptic cylinder; 5. an elliptic cylinder connector; 6. an elliptic cylinder.
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 belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The first embodiment is as follows:
referring to fig. 1-3, a rolled membrane water inlet grid with reduced pressure drop and pollution resistance comprises a plurality of groups of interconnected grid structures 1, wherein each grid structure 1 comprises two symmetrically arranged net wires 2, each net wire 2 is streamline and comprises a first arc-shaped wire 201, a second arc-shaped wire 202 and a third arc-shaped wire 203, the second arc-shaped wire 202 and the third arc-shaped wire 203 are arranged at two ends of the first arc-shaped wire 201, the combined shape of the second arc-shaped wire 202 and the third arc-shaped wire 203 is the same as the radian of the first arc-shaped wire 201, the orientations of the first arc-shaped wire 201, the second arc-shaped wire 202 and the third arc-shaped wire 203 are opposite, a short-axis semi-elliptic cylinder 3 is fixedly connected to the arc-shaped outer side of the first arc-shaped wire 201, a long-axis semi-elliptic cylinder 4 is fixedly connected to the arc-shaped outer sides of the second arc-shaped wire 202 and the third arc-shaped wire 203, an elliptic cylinder connecting piece 5 is formed by the long-axis semi-elliptic cylinders 4 of the adjacent groups of the grid structures 1, the short-axis semi-elliptic cylinders 3 of adjacent sets of grid structures 1 form elliptic cylinder connectors 5. During the passage of water through the network 1, secondary flows or vortices may be formed near the membrane surface, which help to generate sufficient turbulence to clean the membrane surface and enhance the anti-fouling capacity of the wound membrane
According to the further optimization scheme, the arc chords of the first arc-shaped wires 201 which are symmetrically arranged are oppositely arranged, the first arc-shaped wires 201 are located in the middle of the side wall of the elliptic cylinder connecting piece 5, and the second arc-shaped wires 202 and the third arc-shaped wires 203 are located in the middle of the side wall of the elliptic cylinder connecting piece 5.
In a further optimized scheme, the long axis direction of the elliptic cylinder connecting piece 5 is the same as the arc center connecting line of the first arc-shaped wires 201 which are symmetrically arranged.
In a further optimized scheme, the diameter of the net wire 2 is 0.05-1.0 mm. Increase the height of the water inlet channel and slow down the development of membrane pollution
In a further optimized scheme, the long axis of the elliptic cylinder connecting piece 5 is 0.33-1.13 mm. Giving the membrane a thicker thickness with less channel pressure drop.
In a further optimized scheme, the minor axis of the elliptic cylinder connecting piece 5 is 0.20-0.50 mm.
In a further optimized scheme, the height of the elliptic cylinder connecting piece 5 is 0.07-2.00 mm.
Example two:
referring to fig. 4, the water inlet grid of the present embodiment is different from the first embodiment only in that, in a further optimized scheme, the elliptic cylinder connecting piece 5 comprises two elliptic cylinders 6, and the net wires 2 are positioned between the bottom surfaces and the top surfaces of the two elliptic cylinders 6.
In a further optimized scheme, the height of the elliptic cylinder 6 is 0.20-0.35 mm.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (9)
1. A reduce pressure drop antipollution formula spiral-wound membrane grid of intaking which characterized in that: the net structure comprises a plurality of groups of mutually connected net structures (1), each net structure (1) comprises two symmetrically arranged net wires (2), each net wire (2) is streamline and comprises a first arc-shaped wire (201), a second arc-shaped wire (202) and a third arc-shaped wire (203), the second arc-shaped wire (202) and the third arc-shaped wire (203) are arranged at two ends of the first arc-shaped wire (201), the combined shape of the second arc-shaped wire (202) and the third arc-shaped wire (203) is the same as the radian of the first arc-shaped wire (201), the second arc-shaped wire (202) and the third arc-shaped wire (203) are oppositely arranged, the arc-shaped outer side of the first arc-shaped wire (201) is fixedly connected with a short-axis semi-elliptic column (3), the arc-shaped outer sides of the second arc-shaped wire (202) and the third arc-shaped wire (203) are fixedly connected with a long-axis semi-elliptic column (4), the long-axis semielliptic cylinders (4) of the adjacent grid structures (1) form an elliptic cylinder connecting piece (5), and the short-axis semielliptic cylinders (3) of the adjacent grid structures (1) form the elliptic cylinder connecting piece (5).
2. The roll type membrane water inlet grid with the reduced pressure drop and pollution resistance as claimed in claim 1, wherein: the arc chords of the first arc-shaped wires (201) are symmetrically arranged and are opposite to each other, the first arc-shaped wires (201) are located in the middle of the side wall of the elliptic cylinder connecting piece (5), and the second arc-shaped wires (202) and the third arc-shaped wires (203) are located in the middle of the side wall of the elliptic cylinder connecting piece (5).
3. The rolled membrane water inlet grid with the characteristics of reducing pressure drop and resisting pollution as claimed in claim 1, wherein: the elliptic cylinder connecting piece (5) comprises two elliptic cylinders (6), and the net wires (2) are positioned between the bottom surfaces and the top surfaces of the elliptic cylinders (6).
4. The rolled membrane water inlet grid with the characteristics of reducing pressure drop and resisting pollution as claimed in claim 1, wherein: the long axis direction of the elliptic cylinder connecting piece (5) is the same as the arc center connecting line of the first arc-shaped wire (201) which is symmetrically arranged.
5. The rolled membrane water inlet grid with the characteristics of reducing pressure drop and resisting pollution as claimed in claim 1, wherein: the diameter of the mesh (2) is 0.05-1.0 mm.
6. The rolled membrane water inlet grid with the characteristics of reducing pressure drop and resisting pollution as claimed in claim 1, wherein: the long axis of the elliptic cylinder connecting piece (5) is 0.33-1.13 mm.
7. The roll type membrane water inlet grid with the reduced pressure drop and pollution resistance as claimed in claim 1, wherein: the minor axis of the elliptic cylinder connecting piece (5) is 0.20-0.50 mm.
8. The rolled membrane water inlet grid with the characteristics of reducing pressure drop and resisting pollution as claimed in claim 1, wherein: the height of the elliptic cylinder connecting piece (5) is 0.07-2.00 mm.
9. The roll type membrane water inlet grid with the reduced pressure drop and the pollution resistance as claimed in claim 3, wherein: the height of the elliptic cylinder (6) is 0.20-0.35 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220718441.5U CN217410371U (en) | 2022-03-30 | 2022-03-30 | Pressure-drop-reducing anti-pollution type roll-type membrane water inlet grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220718441.5U CN217410371U (en) | 2022-03-30 | 2022-03-30 | Pressure-drop-reducing anti-pollution type roll-type membrane water inlet grid |
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| Publication Number | Publication Date |
|---|---|
| CN217410371U true CN217410371U (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220718441.5U Active CN217410371U (en) | 2022-03-30 | 2022-03-30 | Pressure-drop-reducing anti-pollution type roll-type membrane water inlet grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217410371U (en) |
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- 2022-03-30 CN CN202220718441.5U patent/CN217410371U/en active Active
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