CN216498605U - RO membrane center tube, RO membrane filter core and purifier - Google Patents
RO membrane center tube, RO membrane filter core and purifier Download PDFInfo
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- CN216498605U CN216498605U CN202123359594.XU CN202123359594U CN216498605U CN 216498605 U CN216498605 U CN 216498605U CN 202123359594 U CN202123359594 U CN 202123359594U CN 216498605 U CN216498605 U CN 216498605U
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- central tube
- end part
- filter element
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Abstract
The utility model provides an RO membrane central tube, an RO membrane filter element and a water purifier, and relates to the technical field of water purifying equipment, wherein the RO membrane central tube comprises a central tube main body, a cavity is arranged in the central tube main body, and a plurality of water inlet holes communicated with the cavity are formed in the central tube main body; the upper end of the central tube main body is provided with an upper end part, the lower end of the central tube main body is provided with a lower end part, and the diameters of the upper end part and the lower end part are larger than that of the central tube main body. The upper end part and the lower end part of the central tube main body of the RO membrane central tube provided by the utility model can be used for connecting with the membrane of the RO membrane, so that the membrane of the RO membrane can be wound on the central tube main body, and a fixed area between the upper end part and the lower end part can be used for integrating a post-positioned filter element; the RO membrane, the post-positioned filter element and the RO membrane central tube are integrated together, so that the problem that additional parts are needed to fix the post-positioned filter element is avoided.
Description
Technical Field
The utility model relates to the technical field of water purifying equipment, in particular to an RO (reverse osmosis) membrane central tube, an RO membrane filter element and a water purifier.
Background
The membrane of the conventional RO membrane needs to be welded on a central tube, and one end of the membrane of the common RO membrane is formed by winding after being welded on the central tube; this results in the need to separately place the carbon downstream of the reverse osmosis water purifier at other locations, and the carbon cannot be integrated on the RO membrane.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an RO membrane central tube, an RO membrane filter element and a water purifier, and aims to solve the technical problem that an R membrane and rear carbon cannot be integrated on the RO membrane central tube.
In a first aspect, the utility model provides an RO membrane center tube, which comprises a center tube main body, wherein a cavity is arranged in the center tube main body, and a plurality of water inlet holes communicated with the cavity are formed in the center tube main body;
the upper end of the central tube body is provided with an upper end part, the lower end of the central tube body is provided with a lower end part, and the diameters of the upper end part and the lower end part are larger than that of the central tube body;
and a fixing area for fixing the rear filter element is formed between the upper end part and the lower end part.
In an alternative embodiment, the upper end portion, the lower end portion, and the center tube body are concentrically arranged.
In an alternative embodiment, the end face of the lower end of the central tube body is provided with a pure water outlet communicating with the cavity.
In an alternative embodiment, the lower end of the central tube body is provided with an extension tube, and the extension tube is connected with the pure water outlet.
In an alternative embodiment, the diameter of the upper end portion is the same as the diameter of the lower end portion; the radius of the upper end part is 5-9mm longer than that of the central tube main body.
In an optional embodiment, the post-filter element is post-carbon, and the post-carbon is one of activated carbon and carbon fiber.
The upper end part and the lower end part of the central tube main body of the RO membrane central tube provided by the utility model can be used for connecting with the membrane of the RO membrane, so that the membrane of the RO membrane can be wound on the central tube main body, and a fixed area between the upper end part and the lower end part can be used for integrating a post-positioned filter element; the RO membrane, the post-positioned filter element and the RO membrane central tube are integrated together, so that the problem that additional parts are needed to fix the post-positioned filter element is avoided.
In a second aspect, the present invention provides a RO membrane cartridge comprising a RO membrane, a post-cartridge and a RO membrane center tube according to any one of the preceding embodiments;
the rear filter element is sleeved outside the central tube main body and is positioned in the fixed area; the RO membrane is arranged on the outer side of the post-positioned filter element; and one end of the membrane of the RO membrane is fixedly connected with the upper end part and the lower end part respectively.
In an optional embodiment, the RO membrane further comprises a pre-composite filter element, and the pre-composite filter element is sleeved outside the RO membrane.
In an alternative embodiment, the RO device further comprises a shell, wherein a filter cavity is arranged in the shell, and the RO membrane central pipe is arranged in the filter cavity;
a water inlet cavity is formed between the front composite 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 RO membrane central tube and a waste water outlet communicated with the RO membrane.
The utility model also provides an RO membrane filter element which adopts the RO membrane central tube, thereby having all the beneficial effects of the RO membrane central tube.
In a third aspect, the utility model provides a water purifier, comprising the RO membrane cartridge according to any one of the preceding embodiments.
The utility model also provides a water purifier, which adopts the RO membrane filter element, thereby having all the beneficial effects of the RO membrane 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 structural diagram of a central tube of an RO membrane provided in an embodiment of the present invention;
FIG. 2 is a schematic view of another angled configuration of the central tube of the RO membrane of FIG. 1;
fig. 3 is a schematic structural diagram of an RO membrane cartridge according to an embodiment of the present invention;
FIG. 4 is an enlarged partial view of A of the RO membrane cartridge of FIG. 3;
fig. 5 is another schematic structural diagram of an RO membrane cartridge according to an embodiment of the present invention.
Icon: 100-a center tube body; 200-water inlet holes; 300-upper end; 400-lower end portion; 500-extension tubing; 600-a pure water outlet; 700-a cavity; 800-rear filter element; 900-RO membranes; 110-a front composite filter element; 120-a filter chamber; 130-a water inlet cavity; 140-a housing; 150-water inlet; 160-water outlet; 170-waste gate.
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 4, the present invention provides an RO membrane center tube, including a center tube body 100, a chamber 700 is formed in the center tube body 100, and a plurality of water inlet holes 200 communicated with the chamber 700 are formed in the center tube body 100;
an upper end portion 300 is provided at the upper end of the center tube body 100, a lower end portion 400 is provided at the lower end of the center tube body 100, and the diameters of the upper end portion 300 and the lower end portion 400 are larger than the diameter of the center tube body 100;
the upper end 300 and the lower end 400 form a fixing region for fixing the rear filter element 800 therebetween.
In some embodiments, the central tube body 100 of the RO membrane central tube is provided with a plurality of water inlets 200, at least three water inlets 200 are generally disposed on the peripheral side of the same plane of the central tube body 100, and the plurality of water inlets 200 are disposed along the axial direction of the central tube body 100, so that the filtered pure water enters the cavity 700 from the water inlets 200 and flows out along the central tube body.
The upper end of the center tube body 100 has an upper end 300, the upper end 300 is cylindrical, and the lower end of the center tube body 100 has a lower end 400, the lower end 400 is cylindrical; the upper end 300 and the lower end 400 form a fixing area of the rear filter element 800 outside the center tube body 100; the rear filter element 800 can be fixed in a fixed area, and the distance from the axis of the center tube body 100 to the outer surface of the outer carbon is not more than the distance from the center tube body 100 to the outer surface of the upper end 300; when the RO membrane 900 is to be wound around the RO membrane central tube body 100, the membrane sheets of the RO membrane 900 are fixedly disposed at the upper end 300 and the lower end 400, the post-filter 800 is fixed at a fixed area before the membrane sheets of the RO membrane 900 are wound around the central tube body 100, and then the RO membrane 900 is wound around the central tube body 100, thereby achieving integration of the RO membrane 900, the post-filter 800, and the central tube body 100.
In an alternative embodiment, the upper end 300, the lower end 400, and the center tube body 100 are concentrically disposed.
In an alternative embodiment, the end face of the lower end of the center tube body 100 is provided with a pure water outlet 600 communicating with the chamber 700.
In an alternative embodiment, the lower end of the center tube body 100 is provided with an extension pipe 500, and the extension pipe 500 is connected to the pure water outlet 600.
In an alternative embodiment, the diameter of the upper end 300 is the same as the diameter of the lower end 400.
In an alternative embodiment, the radius of the upper end 300 is 5-9mm longer than the radius of the center tube body 100.
In an alternative embodiment, the post-filter element 800 is post-carbon, and the post-carbon is one of activated carbon and carbon fiber.
In some embodiments, the diameters of the upper end 300 and the lower end 400 are the same, i.e., after one end of the membrane sheets of the RO membrane 900 is fixed at the upper end 300 and the lower end 400, the membrane sheets of the RO membrane 900 are wound to form a RO membrane 900 that is uniform up and down.
The diameter of the upper end 300 is 10-18mm longer than the diameter of the center tube body 100 according to the difference between the inner and outer diameters of the rear filter element 800, and the difference between the inner and outer diameters of the rear filter element 800, which is generally rotated, is generally 5-9 mm.
The upper end part 300 and the lower end part 400 of the central tube main body 100 of the RO membrane central tube provided by the utility model can be used for connecting with the membrane sheet of the RO membrane 900, so that the membrane sheet of the RO membrane 900 can be wound on the central tube main body 100, and the fixing area between the upper end part 300 and the lower end part 400 can be used for integrating the post-filter element 800; namely, the RO membrane 900, the post-filter element 800 and the RO membrane central tube are integrated together, thereby avoiding the problem that additional parts are needed to fix the post-filter element 800.
Referring to fig. 3, 4 and 5, the present invention provides an RO membrane cartridge comprising an RO membrane 900, a post-cartridge 800 and a RO membrane center tube according to any of the preceding embodiments;
the rear filter element 800 is sleeved outside the central tube main body 100 and is located in the fixing area; the RO membrane 900 is disposed outside the rear filter element 800; the membrane sheets of the RO membrane 900 are connected to the upper end 300 and the lower end 400, respectively.
The RO membrane 900 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 RO membrane 900; the carbon fiber layer is established 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, through glue fixed connection between first reverse osmosis rete and the second reverse osmosis rete.
Water flow can be filtered through the first reverse osmosis membrane layer and the second reverse osmosis membrane layer firstly, pure water obtained after filtering flows to the carbon fiber layer, the pure water is filtered again through the carbon fiber layer, and concentrated water obtained after filtering is led out of the RO membrane 900 through the concentrated water separation net. The pure water filtered by the carbon fiber layer flows into the RO membrane central tube through the water inlet hole 200 of the RO membrane central tube, and is discharged out of the RO membrane filter element through the pure water outlet 600 of the RO membrane central tube.
When the membrane sheet of the RO membrane 900 is wound around the central tube of the RO membrane, one end of the concentrate spacer layer in the RO membrane 900 may be connected to the side walls of the upper end 300 and the lower end 400 of the central tube of the RO membrane, and the membrane sheet of the RO membrane 900 may be wound around the central tube of the RO membrane in the winding direction to obtain the RO membrane 900. The manner in which one end of the concentrate spacer layer in the membrane sheets of the RO membrane 900 is connected to the side walls of the upper end 300 and lower end 400 of the RO membrane center tube may include, but is not limited to: hot pressing, bonding, welding, etc.
Referring to fig. 5, in an alternative embodiment, the RO membrane filtration system further comprises a pre-composite filter element 110, wherein the pre-composite filter element 110 is sleeved outside the RO membrane 900.
In an alternative embodiment, the RO membrane comprises a housing 140, a filter chamber 120 is arranged in the housing 140, and the RO membrane central tube is arranged in the filter chamber 120;
an inlet cavity 130 is formed between the front composite filter element 110 and the inner wall of the shell 140; the housing 140 is provided with a water inlet 150 communicating with the water inlet chamber 130, a water outlet 160 communicating with the central tube of the RO membrane, and a waste water outlet 170 communicating with the RO membrane 900.
The water enters the filter chamber 120 from the water inlet 150, then enters the pre-composite filter element 110, the RO membrane 900 and the post-filter element 800 from the water inlet chamber 130, enters the central tube of the RO membrane, and flows from the pure water outlet 600 to the water outlet 160 along the extension tube 500; the RO membrane directs the wastewater to the wastewater port 170 and flows out through the wastewater port 170.
The utility model also provides an RO membrane filter element which adopts the RO membrane central tube, thereby having all the beneficial effects of the RO membrane central tube.
The utility model provides a water purifier, which comprises the RO membrane filter element in any one of the above embodiments.
The utility model also provides a water purifier, which adopts the RO membrane filter element, thereby having all the beneficial effects of the RO membrane 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 (10)
1. An RO membrane center tube is characterized by comprising a center tube body (100), wherein a cavity (700) is formed in the center tube body (100), and a plurality of water inlet holes (200) communicated with the cavity (700) are formed in the center tube body (100);
an upper end part (300) is arranged at the upper end of the central tube main body (100), a lower end part (400) is arranged at the lower end of the central tube main body (100), and the diameters of the upper end part (300) and the lower end part (400) are larger than that of the central tube main body (100);
a fixing area for fixing the rear filter element (800) is formed between the upper end part (300) and the lower end part (400).
2. An RO membrane center tube according to claim 1, characterized in that the upper end (300), the lower end (400) and the center tube body (100) are concentrically arranged.
3. An RO membrane central tube according to claim 2, characterized in that the end face of the lower end of the central tube body (100) is provided with a pure water outlet (600) communicating with the chamber (700).
4. An RO membrane central tube according to claim 3, characterized in that the lower end of the central tube body (100) is provided with an extension tube (500), and the extension tube (500) is connected with the pure water outlet (600).
5. An RO membrane central tube according to claim 2, characterized in that the diameter of the upper end (300) is the same as the diameter of the lower end (400); the radius of the upper end (300) is 5-9mm longer than the radius of the central tube body (100).
6. An RO membrane cartridge comprising an RO membrane (900), a post-cartridge (800) and a RO membrane center tube according to any one of claims 1 to 5;
the rear filter element (800) is sleeved outside the central tube main body (100) and is positioned in the fixing area; the RO membrane (900) is arranged on the outer side of the post-filter element (800); one end of the membrane sheet of the RO membrane (900) is fixedly connected with the upper end part (300) and the lower end part (400) respectively.
7. An RO membrane cartridge according to claim 6 wherein the post-cartridge (800) is post-carbon, the post-carbon being one of activated carbon, carbon fibre.
8. A RO membrane filter cartridge according to claim 6, characterized by further comprising a pre-composite filter cartridge (110), the pre-composite filter cartridge (110) being sleeved outside the RO membrane (900).
9. A RO membrane cartridge according to claim 8 further comprising a housing (140), a filter chamber (120) being provided within the housing (140), the RO membrane central tube being provided within the filter chamber (120);
forming a water inlet cavity (130) between the pre-composite filter element (110) and the inner wall of the housing (140); the shell (140) is provided with a water inlet (150) communicated with the water inlet cavity (130), a water outlet (160) communicated with the central pipe of the RO membrane and a waste water inlet (170) communicated with the RO membrane (900).
10. A water purification machine comprising a RO membrane cartridge according to any one of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123359594.XU CN216498605U (en) | 2021-12-28 | 2021-12-28 | RO membrane center tube, RO membrane filter core and purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123359594.XU CN216498605U (en) | 2021-12-28 | 2021-12-28 | RO membrane center tube, RO membrane filter core and purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216498605U true CN216498605U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123359594.XU Active CN216498605U (en) | 2021-12-28 | 2021-12-28 | RO membrane center tube, RO membrane filter core and purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216498605U (en) |
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2021
- 2021-12-28 CN CN202123359594.XU patent/CN216498605U/en active Active
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