CN111203102A - A many membrane page filter cores that is used for center tube of filter core and has it - Google Patents
A many membrane page filter cores that is used for center tube of filter core and has it Download PDFInfo
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- CN111203102A CN111203102A CN202010043053.7A CN202010043053A CN111203102A CN 111203102 A CN111203102 A CN 111203102A CN 202010043053 A CN202010043053 A CN 202010043053A CN 111203102 A CN111203102 A CN 111203102A
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- pipe
- tube
- main pipe
- filter
- membrane
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- 239000012528 membrane Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 claims abstract description 25
- 230000008569 process Effects 0.000 claims abstract description 25
- 230000002093 peripheral effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 26
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 35
- 238000003780 insertion Methods 0.000 description 22
- 230000037431 insertion Effects 0.000 description 22
- 238000005096 rolling process Methods 0.000 description 13
- 239000002351 wastewater Substances 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000008213 purified water Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000001728 nano-filtration Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000001223 reverse osmosis Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a central tube for a filter element and a multi-membrane filter element with the central tube, wherein the central tube comprises: the device comprises a main pipe, a plurality of clamping pieces and a plurality of clamping pieces, wherein flanges protruding outwards are arranged at two ends of the main pipe, and the upper end and the lower end of the main pipe are provided with process fixing positions; a secondary tube located between the two flanges. According to the central tube for the filter element, the auxiliary tube is embedded on the main tube and combined to form a complete central tube structure, water can enter from the side edge through the central tube structure, and the central tube structure is suitable for a multi-membrane filter element with high water production rate and high filter membrane utilization efficiency.
Description
The application is a divisional application with the application date of 2016, 08 and 29, and the application number of 201610749412.4, and the name of the invention is 'center tube for filter element and multi-membrane filter element with the center tube'.
Technical Field
The invention relates to the technical field of water purification equipment, in particular to a central tube for a filter element and a multi-membrane filter element with the central tube.
Background
The water purifier technology mainly adopts filtration technologies such as active carbon, ultrafiltration, reverse osmosis, nanofiltration and the like, wherein the core of the reverse osmosis and nanofiltration technologies is a membrane element formed by rolling a flat membrane. However, the reverse osmosis and nanofiltration membrane elements also generate a large amount of wastewater while preparing purified water. In the case of a common membrane element, if the proportion of pure water in the membrane element is increased and the proportion of wastewater is decreased, the pollutants on the membrane surface are enriched, and the flow velocity on the membrane surface is decreased, so that the membrane element is easily polluted.
Compared with a membrane element with small flux, the membrane element with large flux needs to collect purified water permeating in a membrane into a purified water pipe as fast as possible because the influence of the flow resistance of the purified water in the membrane element is large, so that the utilization efficiency of the membrane is improved, and the membrane element needs to be prepared into a plurality of pages. That is, it is necessary to design a structure of a plurality of membranes to improve the utilization efficiency and water yield of the membranes.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. To this end, the invention proposes a central tube for a filter insert, which allows lateral water supply.
The invention also provides a multi-membrane filter element with the central tube.
A center tube for a filter cartridge according to a first aspect of the present invention comprises: the device comprises a main pipe, a plurality of clamping pieces and a plurality of clamping pieces, wherein flanges protruding outwards are arranged at two ends of the main pipe, and the upper end and the lower end of the main pipe are provided with process fixing positions; a secondary tube located between the two flanges.
According to the central tube for the filter element, the auxiliary tube is embedded on the main tube and combined to form a complete central tube structure, water can enter from the side edge through the central tube structure, and the central tube structure is suitable for a multi-membrane filter element with high water production rate and high filter membrane utilization efficiency.
In some embodiments, the process attachment location is formed on an outer end face of the flange.
In some embodiments, the process fixing locations are slot-shaped formed on the end face of the main tube.
In some embodiments, the secondary pipe includes a plurality of secondary pipes arranged in a direction surrounding the main pipe, a plurality of grooves corresponding to the plurality of secondary pipes one to one are formed on the outer circumferential surface of the main pipe, and the grooves are arranged at intervals in the circumferential direction of the main pipe.
In some embodiments, a plurality of wall holes are arranged between every two adjacent grooves at intervals along the main pipe.
A multi-membrane cartridge according to a second aspect of the invention comprises: a center tube for a filter cartridge according to the first aspect of the present invention; the filter membrane, the filter membrane fifty percent discount, just the accessory pipe is located the inboard of filter membrane fifty percent discount department, just the filter membrane is convoluteed on the center tube.
According to the multi-membrane filter element, the central tube for the filter element is arranged, so that the overall performance of the multi-membrane filter element is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic view of a center tube for a filter cartridge according to an embodiment of the present invention;
FIG. 2 is a schematic view of the master tube shown in FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a schematic view of the secondary duct shown in fig. 1.
Reference numerals:
the central tube (100) is provided with,
a main pipe 1, a first fluid collecting hole 11, a wall hole 12, a groove 13, an embedded groove 14, a process fixing position 15, a flange 16, a rib 17,
the secondary pipe 2, the second fluid collecting hole 21, the guide groove 22 and the embedding part 23.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A center tube 100 for a filter cartridge in accordance with an embodiment of the first aspect of the present invention is described below with reference to fig. 1-4.
As shown in fig. 1, a center tube 100 for a filter cartridge according to an embodiment of the first aspect of the present invention includes: a primary pipe 1 and a secondary pipe 2.
The two ends of the main pipe 1 are respectively provided with a flange 16 protruding outwards, and the upper end and the lower end of the main pipe 1 are respectively provided with a process fixing position 15. The secondary pipe 2 is located between two flanges 16.
The center tube 100 for a filter cartridge according to an embodiment of the present invention is configured such that the sub-tube 2 is located between two flanges 16 by providing the flanges 16. Therefore, the flange 16 can limit the displacement of the auxiliary pipe 2 along the up-and-down direction, and meanwhile, in the process of rolling the filter membrane, the flange 16 can also play a role in positioning and limiting the filter membrane, so that the filter membrane is prevented from deviating in the rolling process.
And, through setting up technology fixed position 15, from this, fix center tube 100 through technology fixed position 15, can be convenient for roll up the filter membrane, improve the book system efficiency of filter membrane.
A center tube 100 for a filter cartridge according to some embodiments of the present invention is described below with reference to fig. 1-4.
Alternatively, the process fixing station 15 is formed on an outer end face of the flange 16. This facilitates the formation of the process fixture 15, which further facilitates the manufacturing process of the center tube 100.
Specifically, a first fluid collecting hole 11 extending along the main pipe 1 is arranged in the main pipe 1, a wall hole 12 is arranged on the peripheral wall of the main pipe 1, the wall hole 12 is communicated with the first fluid collecting hole 11, a groove 13 is arranged on the outer peripheral surface of the main pipe 1, and the groove 13 extends along the main pipe 1; at least one part of the auxiliary pipe 2 is embedded in the groove 13, the auxiliary pipe 2 extends along the main pipe 1, a guide groove 22 extending along the auxiliary pipe 2 is formed on the auxiliary pipe 2, and at least one end of the auxiliary pipe 2 is provided with a second fluid collecting hole 21 communicated with the guide groove 22.
With reference to fig. 1 to 4, a central tube 100 for a filter element includes a main tube 1 and a secondary tube 2, the main tube 1 and the secondary tube all extend in the vertical direction, a wall hole 12 penetrating through the circumferential wall in the radial direction of the main tube 1 is formed in the circumferential wall of the main tube 1, a first fluid collecting hole 11 extending in the vertical direction is formed in the main tube 1, the first fluid collecting hole 11 is communicated with the wall hole 12, and pure water obtained by filtering with a filter membrane can be collected into the first fluid collecting hole 11 in the main tube 1 through the wall hole 12, and then enters a pure water channel and is discharged from a pure water outlet.
Be formed with on the outer peripheral face of person in charge 1 along the recess 13 that extends of upper and lower direction, in accessory pipe 2 embedding recess 13, be equipped with the guiding gutter 22 that extends along upper and lower direction on the accessory pipe 2, the upper end and the lower extreme of accessory pipe 2 all are equipped with the second fluid collecting hole 21 with guiding gutter 22 intercommunication, the waste water that the filter membrane filtered raw water and obtained can be collected in the second fluid collecting hole 21 of accessory pipe 2 through guiding gutter 22, then get into the waste water passageway and discharge from the waste water outlet.
According to the central tube 100 for the filter element, the auxiliary tube 2 is embedded on the main tube 1 and combined to form a complete central tube 100 structure, water can enter from the side edge through the central tube 100 structure, the central tube 100 structure is suitable for a multi-membrane filter element with high water yield and high filter membrane utilization efficiency, and meanwhile, the central tube 100 can be used for rolling the filter membrane on a machine, so that the rolling efficiency of the filter membrane can be improved.
In one embodiment of the present invention, both ends of the groove 13 are provided with the insertion grooves 14, the size of the insertion groove 14 is larger than that of the groove 13 in the circumferential direction of the main tube 1, both ends of the sub-tube 2 are provided with the insertion portions 23, and the insertion portions 23 correspond to the insertion grooves 14 one to one, and the insertion portions 23 are inserted into the corresponding insertion grooves 14. So that the displacement of the sub pipe 2 in the up-down direction and the displacement in the circumferential direction of the main pipe 1 can be defined by the fitting groove 14 and the fitting portion 23 in cooperation.
With reference to fig. 2 and 4, a first insertion groove is formed at the upper end of the groove 13, a second insertion groove is formed at the lower end of the groove 13, a first insertion portion adapted to be inserted into the first insertion groove is provided at the upper end of the sub pipe 2, a second insertion portion adapted to be inserted into the second insertion groove is provided at the lower end of the sub pipe 2, and the width of the first insertion groove and the second insertion groove in the circumferential direction of the main pipe 1 is greater than the width of the groove 13 in the circumferential direction of the main pipe 1, when the sub pipe 2 is inserted into the groove 13, the displacement of the sub pipe 2 in the circumferential direction and the axial direction of the main pipe 1 can be limited by the mutual cooperation of the insertion groove 14 and the insertion portion 23, so that the main pipe 1 and the sub pipe 2 can constitute a firm whole. The first embedded groove and the second embedded groove can be identical in structure or different in structure.
In one embodiment of the present invention, as shown in fig. 4, the second fluid collecting hole 21 is formed in at least one of the insertion portions 23, and for example, the second fluid collecting hole 21 may be formed only in the first insertion portion at the upper end of the sub-pipe 2, the second fluid collecting hole 21 may be formed only in the second insertion portion at the lower end of the sub-pipe 2, and the second fluid collecting hole 21 may be formed in both the first insertion portion and the second insertion portion at the upper end and the lower end of the sub-pipe 2. And the second fluid collecting hole 21 extends along the axis of the sub-pipe 2 (e.g., up and down direction as shown in fig. 4) so as to guide the fluid (waste water) collected in the sub-pipe 2 to both ends of the central pipe 100 to be discharged.
It should be noted that the cross-section of the first fluid collecting hole 11 and the cross-section of the second fluid collecting hole 21 may be circular. Of course, the cross-section of the first fluid collecting hole 11 and the cross-section of the second fluid collecting hole 21 may also have other different shapes. The cross sections of the first fluid collecting holes 11 at different positions can be the same or different; the cross-sections of the second fluid collecting holes 21 at different positions may be the same or different.
Preferably, the first fluid collecting hole 11 and the second fluid collecting hole 21 may be connected to other external components, for example, the first fluid collecting hole 11 is connected to a plain water pipe, and the second fluid collecting hole 21 is connected to a waste water pipe.
In some embodiments of the present invention, the guide grooves 22 are formed on the side of the sub pipe 2 facing away from the center line of the main pipe 1, and in conjunction with fig. 1 and 4, the guide grooves 22 are formed on the outer side of the sub pipe 2, that is, the guide grooves 22 are formed on the side of the center line of the main pipe 1 of the principle of the sub pipe 2, whereby the sub pipe 2 can facilitate collection of the wastewater obtained after filtration by the membrane filter.
In some embodiments of the present invention, referring to fig. 1, the secondary pipe 2 may include a plurality of secondary pipes 2, and the plurality of secondary pipes 2 are arranged in a circumferential direction around the primary pipe 1, the outer circumferential surface of the primary pipe 1 is provided with a plurality of grooves 13 corresponding to the plurality of secondary pipes 2 one to one, and the grooves 13 are arranged at intervals in the circumferential direction of the primary pipe 1. With reference to fig. 1, a plurality of grooves 13 are formed in the outer peripheral surface of the main pipe 1, the plurality of grooves 13 extend along the axial direction of the main pipe 1 and are uniformly arranged at intervals along the circumferential direction of the main pipe 1, and an auxiliary pipe 2 is correspondingly embedded into each groove 13, so that the central pipe 100 can provide a plurality of fluid channels and filter membranes for rolling a plurality of membranes, thereby improving the utilization efficiency and the water production rate of the filter membranes and reducing the proportion of wastewater.
Further, as shown in fig. 1 to 3, a plurality of wall holes 12 are formed between every two adjacent grooves 13 and are arranged at intervals along the main pipe 1, so that a pure water channel can be formed between every two adjacent grooves 13, thereby reducing the flow resistance of pure water in the filter membrane and improving the utilization rate and the water production rate of the filter membrane. Referring to fig. 2, a rib 17 extending in the up-down direction is defined between every two adjacent grooves 13 on the main pipe 1, a plurality of wall holes 12 penetrating through the rib 17 in the radial direction of the main pipe 1 are formed on the rib 17, and the wall holes 12 are uniformly arranged at intervals in the extending direction (up-down direction) of the rib 17.
In one embodiment of the invention, the main pipe 1 is provided with process fixing locations 15 at both the upper and lower ends thereof, and the process fixing locations 15 are groove-shaped formed on the end surface of the main pipe 1. Therefore, the central tube 100 is fixed through the process fixing position 15, so that the filter membrane can be conveniently rolled, and the rolling efficiency of the filter membrane is improved. Specifically, as shown in fig. 3, a process fixing station 15 having an upward U-shaped groove shape is formed at the upper end of the main pipe 1, a process fixing station 15 having a downward U-shaped groove shape is formed at the lower end of the main pipe 1, and the process fixing station 15 at the upper end of the main pipe 1 and the process fixing station 15 at the lower end of the main pipe 1 may be the same, so as to enhance the interchangeability when positioning the central pipe 100. Of course, the process fixing position 15 at the upper end of the main pipe 1 and the process fixing position 15 at the lower end of the main pipe 1 can also be different, so that the fool-proof effect can be achieved in the process of assembling the filter element.
In some embodiments of the invention, as shown in fig. 1 and 2, both ends of the primary pipe 1 are provided with flanges 16 protruding outward, and the secondary pipe 2 is located between the two flanges 16. Therefore, the flange 16 can limit the displacement of the auxiliary pipe 2 along the up-and-down direction, and meanwhile, in the process of rolling the filter membrane, the flange 16 can also play a role in positioning and limiting the filter membrane, so that the filter membrane is prevented from deviating in the rolling process.
In some embodiments of the present invention, as shown in fig. 2 and 3, the first fluid collecting hole 11 penetrates through the main pipe 1 along the axis of the main pipe 1, and in combination with fig. 3, the first fluid collecting hole 11 penetrates through the main pipe 1 in the up-down direction, so that the first fluid collecting hole 11 can be ensured to be communicated with each wall hole 12 on the main pipe 1, so as to comprehensively collect pure water filtered by the filter membrane, and improve the utilization rate of the filter membrane. In addition, the first fluid collecting hole 11 penetrates the main pipe 1 in the vertical direction, and it is also advantageous to guide the collected pure water to the pure water outlets connected to both ends of the central pipe 100 for discharge.
A multiple-leaf filter cartridge according to an embodiment of the second aspect of the present invention comprises the central tube 100 for a filter cartridge according to the above-described embodiment of the first aspect of the present invention and a filter membrane, wherein the filter membrane is folded in half, the auxiliary tube 2 is positioned inside the folded part of the filter membrane, and the filter membrane is wound around the central tube 100. Therefore, the filter membrane can easily form a plurality of layers for clamping the auxiliary pipe 2, the filter membrane can be manufactured more conveniently, and the rolling efficiency of the filter membrane is improved.
According to the multi-membrane filter element disclosed by the embodiment of the invention, the central tube 100 for the filter element disclosed by the embodiment of the first aspect is arranged, so that the overall performance of the multi-membrane filter element is improved.
A multi-leaf cartridge according to one embodiment of the invention will now be described with reference to fig. 1-4.
The multi-leaf filter cartridge includes a center tube 100 and a filter membrane.
Specifically, as shown in fig. 1, the center pipe 100 includes a main pipe 1 and a sub pipe 2, the main pipe 1 extends in the vertical direction, a first fluid collecting hole 11 extending along the main pipe 1 is provided in the main pipe 1, and the first fluid collecting hole 11 penetrates the main pipe 1 along the axis of the main pipe 1. The outer peripheral surface of the main pipe 1 is provided with a plurality of grooves 13, the grooves 13 extend in the up-down direction, the grooves 13 are uniformly arranged at intervals along the circumferential direction in the divinatory symbols, the upper ends and the lower ends of the grooves 13 are provided with embedded grooves 14, and the size of the embedded grooves 14 is larger than that of the grooves 13 in the circumferential direction of the main pipe 1.
Furthermore, a rib 17 extending along the vertical direction is defined between every two adjacent grooves 13, a plurality of wall holes 12 penetrating through the wall surface of the main pipe 1 along the radial direction of the main pipe 1 are formed in the rib 17, and the wall holes 12 are uniformly arranged at intervals along the length direction of the rib 17.
The upper end and the lower end of the main pipe 1 are provided with flanges 16 protruding outwards, the upper end and the lower end of the main pipe 1 are provided with process fixing positions 15, and the process fixing positions 15 are groove-shaped and formed on the outer end face of the flanges 16 (the upper end face of the flange 16 at the upper end of the main pipe 1, and the lower end face of the flange 16 at the lower end of the main pipe 1).
The auxiliary pipe 2 comprises a plurality of grooves 13 which correspond to each other one by one and extend in the vertical direction, the auxiliary pipe 2 is positioned between two flanges 16 at the upper end and the lower end of the main pipe 1, embedding portions 23 are arranged at the upper end and the lower end of the auxiliary pipe 2, the auxiliary pipe 2 is embedded into the grooves 13, and the embedding portions 23 are embedded into the embedding grooves 14.
The secondary pipe 2 is formed with a guide groove 22 extending along the secondary pipe 2, the guide groove 22 being formed on the side of the secondary pipe 2 facing away from the center line of the primary pipe 1. The upper end and the lower end of the secondary pipe 2 are both provided with a second fluid collecting hole 21 communicated with the diversion trench 22, and the second fluid collecting hole 21 extends along the axis of the secondary pipe 2.
When the multi-membrane filter element is assembled, the filter membrane is folded in half, the auxiliary pipe 2 is placed on the inner side of the folded part of the filter membrane, the auxiliary pipe 2 is embedded into the groove 13, at the moment, the main pipe 1 and the auxiliary pipe 2 are separated by the filter membrane, then the central pipe 100 can be fixed on a rolling device, and finally the filter membrane is wound on the central pipe 100 by the rolling device.
According to the multi-membrane filter element provided by the embodiment of the invention, the auxiliary pipe 2 is embedded on the main pipe 1 in an embedding way, and the main pipe 1 and the auxiliary pipes 2 are combined into the complete multi-channel central pipe 100, so that the design problem of the central pipe 100 of the multi-membrane filter element with side water inlet is solved, meanwhile, the central pipe 100 can be rolled on a machine, and the rolling efficiency of the filter membrane is improved.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. A center tube for a filter cartridge, comprising:
the device comprises a main pipe, a plurality of clamping pieces and a plurality of clamping pieces, wherein flanges protruding outwards are arranged at two ends of the main pipe, and the upper end and the lower end of the main pipe are provided with process fixing positions;
a secondary tube located between the two flanges.
2. The center tube for a filter cartridge of claim 1, wherein the process fastening location is formed on an outer end face of the flange.
3. The center tube for a filter cartridge as claimed in claim 1, wherein the process fixing place is a groove shape formed on an end surface of the main tube.
4. The center tube for a filter cartridge according to any one of claims 1, wherein the sub-tube includes a plurality of sub-tubes arranged in a direction surrounding the main tube, a plurality of grooves are provided on an outer peripheral surface of the main tube in one-to-one correspondence with the plurality of sub-tubes, and the grooves are arranged at intervals in a circumferential direction of the main tube.
5. A center tube for a filter cartridge as claimed in claim 4, wherein a plurality of wall holes are provided between each adjacent two of the grooves at intervals along the main tube.
6. A multi-membrane cartridge, comprising:
a center tube for a filter cartridge according to any one of claims 1-5;
the filter membrane, the filter membrane fifty percent discount, just the accessory pipe is located the inboard of filter membrane fifty percent discount department, just the filter membrane is convoluteed on the center tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010043053.7A CN111203102B (en) | 2016-08-29 | 2016-08-29 | A many membrane page filter cores that is used for center tube of filter core and has it |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010043053.7A CN111203102B (en) | 2016-08-29 | 2016-08-29 | A many membrane page filter cores that is used for center tube of filter core and has it |
| CN201610749412.4A CN106139902B (en) | 2016-08-29 | 2016-08-29 | A many membrane page filter cores that is used for center tube of filter core and has it |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610749412.4A Division CN106139902B (en) | 2016-08-29 | 2016-08-29 | A many membrane page filter cores that is used for center tube of filter core and has it |
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| Publication Number | Publication Date |
|---|---|
| CN111203102A true CN111203102A (en) | 2020-05-29 |
| CN111203102B CN111203102B (en) | 2022-02-22 |
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| CN202010043053.7A Active CN111203102B (en) | 2016-08-29 | 2016-08-29 | A many membrane page filter cores that is used for center tube of filter core and has it |
| CN202010044073.6A Active CN111214957B (en) | 2016-08-29 | 2016-08-29 | A many membrane page filter cores that is used for center tube of filter core and has it |
| CN201610749412.4A Active CN106139902B (en) | 2016-08-29 | 2016-08-29 | A many membrane page filter cores that is used for center tube of filter core and has it |
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| CN202010044073.6A Active CN111214957B (en) | 2016-08-29 | 2016-08-29 | A many membrane page filter cores that is used for center tube of filter core and has it |
| CN201610749412.4A Active CN106139902B (en) | 2016-08-29 | 2016-08-29 | A many membrane page filter cores that is used for center tube of filter core and has it |
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| IL290707A (en) * | 2022-02-17 | 2022-07-01 | Yamit Filtration And Water Treat Ltd | Filtration systems with elongated filtering pockets |
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| US20120024771A1 (en) * | 2010-07-30 | 2012-02-02 | Cummins Filtration Ip, Inc. | No filter no run filter assembly with air vent |
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| CN204298113U (en) * | 2014-11-27 | 2015-04-29 | 佛山市麦克罗美的滤芯设备制造有限公司 | Improve the structure of RO counter-infiltration diaphragm utilization rate and flux |
| CN204619754U (en) * | 2015-04-02 | 2015-09-09 | 佛山市麦克罗美的滤芯设备制造有限公司 | The reverse osmosis membrane new construction of interior water inlet |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111214957A (en) | 2020-06-02 |
| CN106139902A (en) | 2016-11-23 |
| CN106139902B (en) | 2020-02-14 |
| CN111214957B (en) | 2022-02-18 |
| CN111203102B (en) | 2022-02-22 |
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