Integrated composite filter element and water purifier
Technical Field
The utility model belongs to the technical field of water purification equipment, and particularly provides an integrated composite filter element.
Background
The existing integrated composite filter element mostly comprises a front filter element, an RO (reverse osmosis) membrane filter element and a rear filter element, wherein the front filter element comprises PP cotton and a front carbon rod, the rear filter element comprises a rear carbon rod, and the filter elements can play a role in multi-layer filtration on water. However, the existing composite filter element is not reasonable enough in the structural arrangement of a plurality of filter elements, so that the problems of complex water path design and large integral volume of the composite filter element are caused.
Accordingly, there is a need in the art for a new integrated composite filter element that addresses the above-mentioned problems.
Disclosure of Invention
The utility model aims to solve the technical problems, namely, the problems that the existing composite filter element is unreasonable in structural arrangement, complex in water path design and large in overall volume are solved. For the purpose, the utility model provides an integrated composite filter element, which comprises a filter element top cover and a shell, wherein the filter element top cover comprises a raw water inlet, a pure water outlet and a wastewater outlet, and the filter element top cover is buckled above the shell;
the RO membrane filter element is surrounded on the periphery of the rear filter element, and the front filter element is arranged below the RO membrane filter element and the rear filter element;
the preposed filter element comprises a preposed carbon rod, a preposed water inlet channel and a preposed water outlet channel;
the RO membrane filter element comprises an RO membrane water cavity, an RO membrane accommodated in the RO membrane water cavity and an RO membrane water outlet channel;
the rear filter element comprises a rear carbon rod and a rear water outlet channel;
the preposed water inlet channel is connected with the raw water inlet;
the preposed water outlet channel extends into the RO membrane water cavity;
the RO membrane water outlet channel is connected with the wastewater outlet;
the rear water outlet channel is connected with the pure water outlet.
In the above-mentioned preferred technical scheme of integrated form composite filter element, leading filter core still includes the PP cotton, leading exhalant canal locates the central authorities of leading filter core, leading carbon-point surround in leading exhalant canal's periphery, the PP cotton surround in leading carbon-point's periphery, leading inhalant canal sets up or forms on the inner wall of casing.
In the preferred technical scheme of above-mentioned integrated form composite filter element, leading outlet channel includes leading water inlet port, leading outlet conduit and leading water outlet port, leading water inlet port locates the bottom of leading filter core, leading water outlet port with RO membrane water cavity intercommunication.
In the preferable technical scheme of the integrated composite filter element, the preposed water outlet channel, the preposed carbon rod and the PP cotton form a multilayer annular structure, and water in the preposed filter element enters the preposed water inlet port after being filtered by the PP cotton and the preposed carbon rod.
In above-mentioned integrated form composite filter element's preferred technical scheme, the RO membrane filter core still includes the RO pipe of permeating water, the side of the RO pipe of permeating water is the grid form, the RO membrane is hugged closely the RO pipe of permeating water, water in the RO membrane water cavity is accomplished the RO membrane filters the back and passes through the grid on the RO pipe side of permeating water gets into rearmounted filter core.
In the above preferred technical solution of the integrated composite filter element, the rear carbon rod is disposed in the center of the rear filter element.
In the preferable technical scheme of the integrated composite filter element, the rear filter element further comprises rear PP cotton arranged around the rear carbon rod.
In the preferred technical scheme of the integrated composite filter element, the raw water inlet, the pure water outlet and the wastewater outlet are sequentially arranged on the filter element top cover side by side.
In the above preferred technical solution of the integrated composite filter element, the integrated composite filter element is an integral structure.
In addition, the utility model also provides a water purifier which comprises the integrated composite filter element.
The technical scheme of the utility model includes that the RO membrane filter element is surrounded on the periphery of the rear filter element, and the front filter element is arranged below the RO membrane filter element and the rear filter element, so that the integrated composite filter element has the advantages of more reasonable structural arrangement, simpler water path design and smaller integral volume.
Drawings
FIG. 1 is a schematic cross-sectional view of an integrated composite filter cartridge according to the present invention;
FIG. 2 is a schematic top view of a cartridge top cover according to the present invention;
fig. 3 is a schematic perspective view of an integrated composite filter element according to the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1-3, the integrated composite filter element of the present invention is an integrated composite filter element, and the integrated composite filter element includes a filter element top cover 1, a casing 2, a front filter element 3, an RO membrane filter element 4 and a rear filter element 5, wherein the filter element top cover 1 is fastened above the casing 2, the front filter element 3, the RO membrane filter element 4 and the rear filter element 5 are all disposed inside the casing 2, the RO membrane filter element 4 surrounds the periphery of the rear filter element 5, and the front filter element 3 is disposed below the RO membrane filter element 4 and the rear filter element 5. The filter element top cover 1 comprises a raw water inlet 11, a pure water outlet 12 and a wastewater outlet 13, and the raw water inlet 11, the pure water outlet 12 and the wastewater outlet 13 are sequentially arranged on the filter element top cover 1 side by side. The front filter element 3 comprises PP cotton (not marked in the figure), a front carbon rod (not marked in the figure), a front water inlet channel 31 and a front water outlet channel 32; the pre-feed water passage 31 is connected to the raw water inlet 11. The RO membrane cartridge 4 includes an annular RO membrane water chamber 41, an annular RO membrane (not shown) disposed in the RO membrane water chamber 41, and an RO membrane effluent passage 42 communicating with the RO membrane water chamber 41; the preposed water outlet channel 31 extends into the RO membrane water cavity 41, and the RO membrane water outlet channel 42 is connected with the wastewater outlet 13. The rear filter element 5 comprises a rear carbon rod 51 and a rear water outlet channel 52; the post-positioned water outlet passage 52 is connected to the pure water outlet 12.
Preferably, the preposed water outlet channel 32 is arranged in the center of the preposed filter element 3, the preposed water outlet channel 32 comprises a preposed water inlet port 321, a preposed water outlet pipeline 322 and a preposed water outlet port 323, the preposed water inlet port 321 is arranged at the bottom of the preposed filter element 3, and the preposed water outlet port 323 is communicated with the RO membrane water cavity 41. The preposed carbon rod is surrounded on the periphery of the preposed water outlet channel 32, the PP cotton is surrounded on the periphery of the preposed carbon rod, and the preposed water inlet channel 31 is arranged or formed on the inner wall of the shell 2.
It should be noted that, although it is described that the pre-filter element 3 and the RO membrane filter element 4 are always in a communication state through the pre-water outlet channel 32, this is not restrictive, and a person skilled in the art may install a valve, such as an electromagnetic valve, on the pre-water outlet port 323, so as to enable water to enter the RO membrane filter element 4 after filtering in the pre-filter element 3 for a certain time or a certain effect, so as to enable the pre-filter element 3 to fully perform its function.
Preferably, the front water outlet channel 32, the front carbon rod and the PP wool form a multi-layer ring structure together, wherein the front water outlet channel 32 is the innermost side of the multi-layer ring structure, the PP wool is the outermost side of the multi-layer ring structure, water in the front filter element 3 enters the front water inlet port 321 after being filtered by the PP wool and the front carbon rod, and finally enters the RO membrane filter element 4 through the front water outlet pipe 322 and the front water outlet port 323.
Continuing to refer to fig. 1, the water filtered in the pre-filter element 1 enters the RO membrane filter element 4 through the pre-water outlet channel 32, specifically enters the RO membrane water cavity 41, the RO membrane filter element 4 further comprises an annular RO membrane water permeable pipe 43, the RO membrane water permeable pipe 43 is arranged between the RO membrane and the post-filter element 5, the side surface of the RO membrane water permeable pipe 43 is in a grid shape, the RO membrane water permeable pipe 43 is tightly attached to the RO membrane, the water in the RO membrane water cavity 41 can enter the post-filter element 5 through the grid on the side surface of the RO membrane water permeable pipe 43 after the RO membrane filtration is completed, and the wastewater formed after the filtration in the RO membrane water cavity 41 can be discharged from the wastewater outlet 13 through the RO membrane water outlet channel 42.
Continuing to refer to fig. 1, the water filtered in the RO membrane filter element 4 enters the post-filter element 5 through the RO membrane permeable pipe 43, the post-carbon rod 51 is disposed at the center of the post-filter element 5, and the water filtered in the post-filter element 5 enters the pure water outlet 12 through the post-water outlet channel 52 and flows out of the integrated composite filter element.
Preferably, the rear filter element 5 further comprises rear PP cotton (not shown), and the PP cotton surrounds the periphery of the rear carbon rod 51, so as to further filter the water in the rear filter element 5.
It should also be noted that, although the post-filter element 5 and the pure water outlet 12 are described herein as being always in a communication state through the post-water outlet channel 52, this is not limiting, and a person skilled in the art may install a valve, such as an electromagnetic valve, on the post-water outlet channel 52, so that water enters the pure water outlet 12 after being filtered in the post-filter element 5 for a certain time or a certain effect, which is helpful for improving the taste of water, and further improving user experience.
The utility model also provides a water purifier which comprises the integrated composite filter element.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.