CN216404050U - Composite filter element and water purifier - Google Patents
Composite filter element and water purifier Download PDFInfo
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- CN216404050U CN216404050U CN202123058935.XU CN202123058935U CN216404050U CN 216404050 U CN216404050 U CN 216404050U CN 202123058935 U CN202123058935 U CN 202123058935U CN 216404050 U CN216404050 U CN 216404050U
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Abstract
The utility model provides a composite filter element and a water purifier, and relates to the technical field of water treatment, wherein the composite filter element comprises a shell, a filter cavity is arranged in the shell, and a central pipe is arranged in the filter cavity; one end of the shell is provided with an opening communicated with the filter cavity, the opening is provided with a cover plate used for sealing the opening, and a positioning shaft is arranged at the central position of the cover plate; one end of the central tube is fixed on the positioning shaft. The composite filter element provided by the utility model adopts a structure that the built-in filter element and the external filter element are sequentially sleeved on the central tube, so that the problems that the upper shell and the lower shell are welded into a whole due to the structure of the small filter elements, and the welding part is easy to leak water after the composite filter element is used for a period of time are solved; and the shell is a whole, so that no welding part exists, and the problem of water leakage is solved.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to a composite filter element and a water purifier.
Background
Along with the continuous perfection of water purifier equipment, various types of composite filter elements begin to appear in the market, and the composite filter elements integrate a plurality of filter elements into a whole, so that the space can be better saved while the functions of the filter elements are ensured. However, most of the existing composite filter element is of an upper small filter element structure and a lower small filter element structure, the upper small filter element structure and the lower small filter element structure are respectively arranged on the upper shell and the lower shell, and the upper shell and the lower shell are welded into a whole in a welding mode. On the other hand, the structure of the water path inside the existing composite filter element is complex, and the processing difficulty is increased, so that the production cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a composite filter element and a water purifier, and aims to solve the technical problem that water is easy to leak at the welding position of the composite filter element with an upper filter element structure and a lower filter element structure.
In a first aspect, the utility model provides a composite filter element, which comprises a shell, wherein a filter cavity is arranged in the shell, and a central pipe is arranged in the filter cavity;
one end of the shell is provided with an opening communicated with the filter cavity, the opening is provided with a cover plate used for sealing the opening, and a positioning shaft is arranged at the central position of the cover plate; one end of the central tube is fixed on the positioning shaft;
an internal filter element and an external filter element are sequentially sleeved on the central tube; a water inlet cavity is formed between the external filter element and the inner wall of the shell;
the shell is provided with a water inlet communicated with the water inlet cavity, a water outlet communicated with the central tube and a waste water inlet communicated with the built-in filter element;
the water to be filtered entering from the water inlet enters the water inlet cavity, sequentially passes through the external filter element and the internal filter element, enters the central tube and flows out of the water outlet;
the water which does not enter the central pipe forms waste water which flows out of the waste water port.
In an alternative embodiment, a bottom mounting seat is provided at an end of the housing away from the opening;
a water outlet pipe corresponding to the positioning shaft is arranged on the bottom mounting seat and is communicated with the water outlet;
an internal mounting seat for mounting an internal filter element and an external mounting seat for mounting an external filter element are sequentially sleeved outside the water outlet pipe on the bottom mounting seat;
and a drainage cavity for wastewater to flow into the wastewater port is formed between the built-in mounting seat and the water outlet pipe.
In an optional embodiment, a diversion cavity is formed between the built-in mounting seat and the inner wall of the shell, and the diversion cavity is communicated with the water inlet cavity.
In an optional embodiment, the external filter element comprises an inner layer and an outer layer sleeved on the inner layer, and an external filter membrane group is arranged between the outer layer and the inner layer.
In an alternative embodiment, the outer filter membrane group is formed by wrapping the composite filter element around the inner layer.
In an optional embodiment, the composite filter element comprises a first PP cotton layer, an activated carbon and scale inhibitor mixing layer and a second PP cotton layer which are sequentially stacked from bottom to top.
In an alternative embodiment, the inner filter element is formed by winding n (n is more than or equal to 1) groups of inner filter membrane groups around the central pipe.
In an optional embodiment, the built-in filter membrane group comprises a concentrated water separation net layer, a first reverse osmosis membrane layer, a carbon fiber layer and a second reverse osmosis membrane layer, wherein the concentrated water separation net layer is arranged at the bottom layer of the built-in filter membrane group; establish the carbon fiber layer first reverse osmosis rete with between the second reverse osmosis rete, the desalination layer of second reverse osmosis rete deviates from the carbon fiber layer is equipped with glue on the desalination layer of first reverse osmosis rete, first reverse osmosis rete with through glue fixed connection between the second reverse osmosis rete.
In an alternative embodiment, the carbon fiber layer comprises a carbon fiber sheet, or the carbon fiber layer is a layer structure formed by splicing the carbon fiber sheet and activated carbon.
The composite filter element provided by the utility model adopts a structure that the built-in filter element and the external filter element are sequentially sleeved on the central tube, so that the problems that the upper shell and the lower shell are welded into a whole due to the structure of the small filter elements, and the welding part is easy to leak water after the composite filter element is used for a period of time are solved; and the shell is a whole, so that no welding part exists, and the problem of water leakage is solved.
In a second aspect, the utility model provides a water purifier, which comprises the composite filter element in any one of the previous embodiments.
The utility model also provides a water purifier, which adopts the composite filter element, thereby having all the beneficial effects of the composite filter element.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of an internal structure of a composite filter element according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of the internal schematic view of the composite filter element of FIG. 1;
FIG. 3 is a schematic view of an external filter element of the composite filter element shown in FIG. 1;
FIG. 4 is a schematic view of a built-in filter element of the composite filter element shown in FIG. 1;
fig. 5 is a schematic diagram of the working principle of the built-in filter element of the composite filter element shown in fig. 1.
Icon: 100-a housing; 101-a cover plate; 102-a positioning shaft; 200-a central tube; 300-a built-in filter element; 301-dense water barrier layer; 302-a first reverse osmosis membrane layer; 303-a carbon fiber layer; 304-a second reverse osmosis membrane layer; 400-external filter element; 401-a first PP cotton layer; 402-a mixed layer of activated carbon and scale inhibitor; 403-a second PP cotton layer; 500-water inlet cavity; 600-a flow guide cavity; 700-water inlet; 800-water outlet; 900-waste gate; 110-a water outlet pipe; 120-built-in mounting seat; 130-external mounting seat; 140-drainage chamber.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1 to 5, the present invention provides a composite filter element, which includes a housing 100, a filter cavity is disposed inside the housing 100, and a central tube 200 is disposed inside the filter cavity;
an opening communicated with the filter cavity is formed in one end of the shell 100, a cover plate 101 used for sealing the opening is arranged in the opening, and a positioning shaft 102 is arranged in the center of the cover plate 101; one end of the central tube 200 is fixed on the positioning shaft 102;
an internal filter element 300 and an external filter element 400 are sequentially sleeved on the central tube 200; and a water inlet cavity 500 is formed between the external filter element 400 and the inner wall of the casing 100;
the shell 100 is provided with a water inlet 700 communicated with the water inlet cavity 500, a water outlet 800 communicated with the central pipe 200 and a waste water port 900 communicated with the built-in filter element 300;
the water to be filtered entering from the water inlet 700 enters the water inlet cavity 500, sequentially passes through the external filter element 400 and the internal filter element 300, enters the central tube 200, and flows out from the water outlet 800;
the water that does not enter the center pipe 200 forms waste water that flows out of the waste water outlet 900.
In some embodiments, tap water or other water supply system is connected to the water inlet 700, water to be filtered enters the water inlet cavity 500 from the water inlet 700 and passes through the external filter element 400 under the action of water pressure, and since the water inlet 700 is disposed at the lower end of the housing 100, the water to be purified flows from bottom to top, passes through the external filter element 400, flows to the internal filter element 300, and flows into the central tube 200 through the internal filter element 300; the central tube 200 is provided with a plurality of through holes, and pure water filtered by the built-in filter element 300 enters the central tube 200 and flows out of the water outlet 800.
Referring to fig. 1, a water inlet 700, a water outlet 800 and a waste water outlet 900 are generally provided at an end of the housing 100 remote from the opening.
After the water flows upward to a certain extent, it moves downward along the built-in filter element 300, and the water that has not entered the center tube 200 continues to flow downward until it flows out of the waste water port 900, i.e., the purification of the water is completed.
This composite filter core adopts built-in filter core 300 and external filter core 400 to overlap in proper order and establishes the structure on center tube 200, has avoided little filter core structure from top to bottom promptly, leads to casing and casing welding a whole down, and the problem of easy leaking of welding department after using a period compares in prior art, adopts built-in filter core 300 and external filter core 400 to overlap in proper order and establishes the water route structure of the structure on center tube 200 simpler, and processing is convenient, excellent in use effect.
Referring to fig. 2, in an alternative embodiment, a bottom mount is provided at an end of the housing 100 remote from the opening;
a water outlet pipe 110 corresponding to the positioning shaft 102 is arranged on the bottom mounting seat, and the water outlet pipe 110 is communicated with the water outlet 800;
an internal mounting seat 120 for mounting an internal filter element 300 and an external mounting seat 130 for mounting an external filter element 400 are sequentially sleeved outside the water outlet pipe 110 on the bottom mounting seat;
a drainage cavity 140 for wastewater to flow into the wastewater outlet 900 is formed between the built-in mounting seat 120 and the water outlet pipe 110.
In an alternative embodiment, a diversion cavity 600 is formed between the built-in mounting seat 120 and the inner wall of the casing 100, and the diversion cavity 600 is communicated with the water inlet cavity 500.
In order to firmly fix the central tube 200, the internal filter element 300 and the external filter element 400 in the shell 100, a bottom mounting seat is arranged in the shell 100, a water outlet pipe 110 on the bottom mounting seat corresponds to a positioning pipe, the water outlet pipe 110 is inserted into the central tube 200, a positioning shaft 102 is fixed at the other end of the central tube 200, and the central tube 200 is ensured to be positioned in the center of the shell 100; the base mounting seat is provided with an internal mounting seat 120 for fixing the internal filter element 300 and an external mounting seat 130 for fixing the external filter element 400.
A drainage cavity 140 is formed between the built-in mounting seat 120 and the water outlet pipe 110, and when the wastewater in the built-in filter element 300 flows to the built-in mounting seat 120, the wastewater finally flows into the drainage cavity 140 and then flows out through a wastewater outlet 900 communicated with the drainage cavity 140.
Generally, the height of the internal mounting base 120 is lower than that of the external mounting base 130; that is, a flow guide cavity 600 is formed between the internal mounting seat 120 and the inner wall of the housing 100, water entering from the water inlet 700 flows into the flow guide cavity 600, flows into the filter cavity along the flow guide cavity 600, continues to flow upward under the pressure of the water entering the external filter element 400, and enters the internal filter element 300 after being filtered by the external filter element 400; because the upward resistance of the built-in filter element 300 is smaller than the resistance of the transverse flow, most of the water entering the built-in filter element 300 flows upward, flows transversely after flowing to the upper end of the built-in filter element 300, flows downwards along the built-in filter element 300, and in the process of flowing downwards, the water enters the central tube 200 after being filtered, and enters the central tube 200 from the through hole of the central tube 200.
Referring to fig. 1 and 3, in an alternative embodiment, the external filter element 400 includes an inner layer and an outer layer sleeved on the inner layer, and an external filter membrane set is disposed between the outer layer and the inner layer.
In an alternative embodiment, the outer filter membrane group is formed by wrapping the composite filter element around the inner layer.
In an alternative embodiment, the composite filter element comprises a first PP cotton layer 401, an activated carbon and scale inhibitor mixing layer 402 and a second PP cotton layer 403 which are sequentially stacked from bottom to top.
In some embodiments, the external filtering membrane comprises an outer layer and an inner layer, both of which are formed of PP cotton; an external filter membrane group formed by winding the composite filter element on the inner layer is arranged between the outer layer and the inner layer.
The first PP cotton layer 401 of the composite filter element is generally formed by spraying PP melt-blown materials, and the thickness of the first PP cotton layer 401 is generally 0.3-1 mm; granular activated carbon and a scale inhibitor are added on the first PP cotton layer 401; and then spraying a second PP cotton layer 403 to form the composite filter element.
The composite filter element is wound along the inner layer to form an external filter membrane group, and the composite filter element can also continuously add activated carbon, scale inhibitor and a second PP cotton layer on a second PP cotton layer 403 in sequence to form a multilayer composite filter element.
Referring to FIGS. 1, 4 and 5, in an alternative embodiment, the inner cartridge 300 is formed by winding n (n ≧ 1) sets of inner filter membranes around the center tube 200.
The inner cartridge 300 may be formed of a plurality of sets of inner filter membrane groups wound around the central tube, and preferably, the inner cartridge 300 is formed of 1, 2 or 3 sets of inner filter membrane groups wound around the central tube 200.
In an alternative embodiment, the built-in filter membrane group comprises a concentrated water separation net layer 301, a first reverse osmosis membrane layer 302, a carbon fiber layer 303 and a second reverse osmosis membrane layer 304, wherein the concentrated water separation net layer 301 is arranged at the bottom layer of the built-in filter membrane group; the carbon fiber layer 303 is arranged between the first reverse osmosis membrane layer 302 and the second reverse osmosis membrane layer 304, the desalting layer of the second reverse osmosis membrane layer 304 deviates from the carbon fiber layer 303, glue is arranged on the desalting layer of the first reverse osmosis membrane layer 302, and the first reverse osmosis membrane layer 302 is fixedly connected with the second reverse osmosis membrane layer 304 through the glue.
In an alternative embodiment, the carbon fiber layer 303 includes a carbon fiber sheet, or the carbon fiber layer 303 is a layer structure formed by splicing the carbon fiber sheet and activated carbon.
The carbon fiber layer 303 can also be a layer structure formed by splicing carbon fiber sheets and other materials according to actual needs.
The water flow can be filtered by the first reverse osmosis membrane layer 302 and the second reverse osmosis membrane layer 304, the pure water obtained after filtering flows to the carbon fiber layer 303, the pure water is filtered again by the carbon fiber layer 303, and the concentrated water obtained after filtering is led out of the built-in filter element 300 through the concentrated water separation net. The pure water filtered by the carbon fiber layer 303 flows to the central tube 200 through the through holes of the central tube 200, and is discharged out of the composite filter element through the central tube 200.
One end of the dense water separation net layer 301 in the built-in filter membrane group can be fixedly connected with the side wall of the central tube 200 without the through hole, and then the built-in filter membrane group is rolled by taking the central tube 200 as the center according to the rolling direction to obtain the built-in filter element 300. Because the carbon fiber layer 303 is a layer structure formed by splicing carbon fiber sheets and activated carbon, after the carbon fiber layer is wound on the central tube 200, an activated carbon layer is formed outside the central tube 200; in this way, the carbon fiber layer 303 can be used as post-carbon, and the taste of the pure water filtered by the reverse osmosis membrane layer can be adjusted. The manner of fixedly connecting one end of the concentrated water separation screen layer 301 in the built-in filter membrane group with the side wall of the central tube 200 without through holes may include, but is not limited to: hot pressing, bonding, etc.
Referring to fig. 5, the operation principle of the built-in filter cartridge 300 is as follows:
raw water is firstly filtered by a reverse osmosis membrane layer, pure water obtained after the raw water is filtered by the reverse osmosis membrane layer is filtered by a carbon fiber layer 303, the obtained concentrated water is discharged, and finally, the pure water obtained by the filtration of the carbon fiber layer 303 flows to a central tube 200 and is discharged through the central tube 200.
The composite filter element provided by the utility model adopts a structure that the built-in filter element 300 and the external filter element 400 are sequentially sleeved on the central tube 200, so that the problems that an upper shell and a lower shell are welded into a whole due to the fact that the upper shell and the lower shell are welded into a whole and water is easy to leak at the welding position after the composite filter element is used for a period of time are solved; and the shell is a whole, so that no welding part exists, and the problem of water leakage is solved.
In a second aspect, the utility model provides a water purifier, which comprises the composite filter element in any one of the previous embodiments.
The utility model also provides a water purifier, which adopts the composite filter element, thereby having all the beneficial effects of the composite filter element.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The composite filter element is characterized by comprising a shell (100), wherein a filter cavity is arranged in the shell (100), and a central tube (200) is arranged in the filter cavity;
an opening communicated with the filter cavity is formed in one end of the shell (100), a cover plate (101) used for sealing the opening is arranged on the opening, and a positioning shaft (102) is arranged in the center of the cover plate (101); one end of the central pipe (200) is fixed on the positioning shaft (102);
an internal filter element (300) and an external filter element (400) are sequentially sleeved on the central tube (200); a water inlet cavity (500) is formed between the external filter element (400) and the inner wall of the shell (100);
a water inlet (700) communicated with the water inlet cavity (500), a water outlet (800) communicated with the central pipe (200) and a waste water inlet (900) communicated with the built-in filter element (300) are arranged on the shell (100);
the water to be filtered entering from the water inlet (700) enters the water inlet cavity (500), sequentially passes through the external filter element (400) and the internal filter element (300), enters the central tube (200) and flows out of the water outlet (800);
the water that does not enter the central pipe (200) forms waste water that flows out of the waste water opening (900).
2. The composite filter element of claim 1, wherein a bottom mounting seat is provided at an end of the housing (100) remote from the opening;
a water outlet pipe (110) corresponding to the positioning shaft (102) is arranged on the bottom mounting seat, and the water outlet pipe (110) is communicated with the water outlet (800);
an internal mounting seat (120) for mounting an internal filter element (300) and an external mounting seat (130) for mounting an external filter element (400) are sequentially sleeved outside the water outlet pipe (110) on the bottom mounting seat;
a drainage cavity (140) for wastewater to flow into a wastewater port (900) is arranged between the built-in mounting seat (120) and the water outlet pipe (110).
3. The composite filter element according to claim 2, wherein a flow guide cavity (600) is formed between the built-in mounting seat (120) and the inner wall of the shell (100), and the flow guide cavity (600) is communicated with the water inlet cavity (500).
4. The composite filter element according to claim 3, wherein the external filter element (400) comprises an inner layer and an outer layer sleeved on the inner layer, and an external filter membrane group is arranged between the outer layer and the inner layer.
5. The composite filter element of claim 4, wherein the outer set of filter membranes is formed from the composite filter element wrapped around the inner layer.
6. Composite filter element according to claim 5, wherein the inner filter element (300) is formed by winding the central tube (200) with n (n ≧ 1) groups of inner filter membranes.
7. The composite filter element according to claim 6, wherein the built-in filter membrane group comprises a concentrated water separation net layer (301), a first reverse osmosis membrane layer (302), a carbon fiber layer (303) and a second reverse osmosis membrane layer (304), and the concentrated water separation net layer (301) is arranged at the bottom layer of the built-in filter membrane group; establish carbon fiber layer (303) first reverse osmosis membrane layer (302) with between second reverse osmosis membrane layer (304), the desalination layer of second reverse osmosis membrane layer (304) deviates from carbon fiber layer (303), is equipped with glue on the desalination layer of first reverse osmosis membrane layer (302), first reverse osmosis membrane layer (302) with through glue fixed connection between second reverse osmosis membrane layer (304).
8. The composite filter element according to claim 7, characterized in that the carbon fiber layer (303) comprises a carbon fiber sheet, or the carbon fiber layer (303) is a layer structure spliced by a carbon fiber sheet and activated carbon.
9. A water purification machine, comprising a composite filter element according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123058935.XU CN216404050U (en) | 2021-12-07 | 2021-12-07 | Composite filter element and water purifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123058935.XU CN216404050U (en) | 2021-12-07 | 2021-12-07 | Composite filter element and water purifier |
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| CN216404050U true CN216404050U (en) | 2022-04-29 |
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| CN202123058935.XU Active CN216404050U (en) | 2021-12-07 | 2021-12-07 | Composite filter element and water purifier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979570A (en) * | 2021-12-07 | 2022-01-28 | 佛山市芯耀环保科技有限公司 | Composite filter element and water purifier |
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2021
- 2021-12-07 CN CN202123058935.XU patent/CN216404050U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979570A (en) * | 2021-12-07 | 2022-01-28 | 佛山市芯耀环保科技有限公司 | Composite filter element and water purifier |
| CN113979570B (en) * | 2021-12-07 | 2024-10-15 | 佛山市芯耀环保科技有限公司 | Composite filter element and water purifier |
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