CN110723833A - Novel large-flux four-in-one filter element structure - Google Patents

Abstract

The invention discloses a novel high-flux four-in-one filter element structure, comprising a filter bottle, a filter bottle cap, a water guide cylinder, a PP composite filter element, a reverse osmosis filter element, a PP upper end cap and a PP lower end cap. Raw water inlet, booster pump inlet, pure water outlet, purified water outlet and waste water outlet, the inside of the filter bottle is provided with a reverse osmosis filter element, a water guide cylinder and a PP composite filter element. There are multiple water guiding grooves, a PP composite filter element filter channel is formed between the water guide cylinder and the filter bottle, and the PP composite filter element filter channel is provided with a PP composite filter element; the reverse osmosis filter element includes a central pipe and a Reverse osmosis membrane, the upper end of the reverse osmosis membrane is sealed with the upper end cover of the reverse osmosis filter element. The invention has reasonable layout and compact structure, reduces the production cost, simplifies the layout of the pipeline between the filter elements, greatly reduces the volume of the filter element, reduces the maintenance cost, and solves the problem of secondary pollution caused by the water storage bucket.

Description

A new type of high-flux four-in-one filter element structure

technical field

The invention relates to the field of water purification equipment, in particular to a disposable high-flux four-in-one filter element structure.

Background technique

As people's hygiene requirements for drinking water are getting higher and higher, water purifiers are used more and more widely in various occasions (such as homes, businesses and some entertainment venues, etc.), traditional reverse osmosis water purifiers need to be assembled before The filter element assembly is generally a filter bottle with a filter element, or a filter bottle with multiple pre-filter elements.

In the prior art, CN 201810043284.0, named "reverse osmosis composite filter element assembly"; including a mounting head, a filter bottle and a reverse osmosis filter element located in the filter bottle, the mounting head is located at the end of the filter bottle, and the reverse osmosis filter element It includes a central pipe and a reverse osmosis membrane wound on the central pipe, a raw water aqueduct layer and a pure water aqueduct layer are formed in the reverse osmosis membrane, and the pure water aqueduct layer is communicated with the first flow channel in the central pipe, including: Raw water inlet, pure water outlet and concentrated water outlet, the raw water inlet and concentrated water outlet are all located on the installation head, and the pure water outlet is located on the filter bottle and communicated with the end of the reverse osmosis filter element away from the installation head The rear purification filter element is located between the end of the reverse osmosis filter element and the bottom wall of the filter bottle, including the water inlet side and the water outlet side. , the water outlet side of the post-purification filter element is communicated with the pure water outlet. In this invention, the reverse osmosis filter element and the post-purification unit are arranged in a filter element assembly, which reduces the number of filter elements in the reverse osmosis water purifier. Correspondingly, It simplifies the pipeline layout between the filter elements, and at the same time, it also simplifies the filter element life monitoring and reminder and filter element replacement.

CN 201610277992.1, the name is "a five-in-one flat-pressed filter element for drinking water treatment"; it includes a sintered coconut shell activated carbon rod, and the center position of the sintered coconut shell activated carbon rod is a hollow structure, forming a through internal cavity, so The outer wall of the sintered coconut shell activated carbon rod is provided with a PE preliminary filter shell, the inner wall of the PE preliminary filter shell wraps the sintered coconut shell activated carbon rod, and a narrow water flow buffer is formed between the PE preliminary filter shell and the inner layer carbon rod. interlayer, the inner cavity of the sintered coconut shell activated carbon rod is provided with a softening resin tank, the cation softening resin is arranged in the cavity of the softening resin tank, and the upper end of the softening resin tank is provided with a water inlet hole, and the softening resin tank is provided with a water inlet. A sintered activated carbon canister is arranged at the lower end of the resin canister, bromine resin particles are arranged in the cavity at the entrance of the sintered activated carbon canister, and the outlet of the sintered activated carbon canister is connected to the inlet of the hollow fiber membrane canister. The outlet of the body is connected to the water outlet, and the inner cavity of the hollow fiber filter membrane tank body is provided with a hollow fiber ultrafiltration membrane wire; the PE preliminary filter shell is specifically a cylindrical structure, and the PE preliminary filter shell is specifically a PE sintered filter element The upper end of the softening resin tank is encapsulated with a cover plate, the cover plate is evenly distributed with through water inlet holes, the inner side of the cover plate is provided with a PP cotton gasket, and the cavity below the PP cotton gasket The cation softening resin is arranged, and five different filtration or treatment materials are used to make specific modules and integrate them into one. The structure is compact and does not increase the resistance of water passing. The volume of the filter element is reduced, the product replacement and installation are convenient, and the use cost is also reduced.

CN 201520157644.1, titled "a composite integrated multi-membrane filter element"; including a filter housing and the filter material in it, the filter material is sequentially from the water inlet end to the water outlet end of a hollow fiber membrane, an activated carbon fiber filter element and an adsorption filter. The filter housing is a split-type removable structure. The filter housing includes an upper cover and a lower shell. The upper cover and the lower shell cooperate with the middle shell to form a removable structure, and the middle shell and the hollow fiber membrane cooperate to form a hollow structure. Fiber membrane membrane module, adsorption filter material and activated carbon fiber filter element are screwed in the upper cover, the upper cover is screwed with the middle shell, the membrane head of the hollow fiber membrane is placed in the middle shell, and the other interface of the middle shell is screwed with the lower shell Therefore, the main part of the hollow fiber membrane is placed in the lower shell, and the combination is convenient and quick.

However, none of them can realize that the pre-filter and reverse osmosis filter can be installed in the same filter bottle at the same time, and cannot really satisfy only one filter bottle installed on a water purifier. In view of this, it is necessary to further improve the existing technology.

SUMMARY OF THE INVENTION

The technical problem solved by the present invention is to provide a novel high-flux four-in-one filter element structure to solve the above-mentioned shortcomings in the background technology.

The technical problem solved by the present invention adopts the following technical solutions to realize:

A novel high-flux four-in-one filter element structure, including a filter bottle, a filter bottle cap, a water guide cylinder, a PP composite filter element, a reverse osmosis filter element, a PP upper end cap and a PP lower end cap, and the filter bottle cap is provided with a raw water inlet , booster pump water inlet, pure water outlet, purified water outlet and waste water outlet, the inside of the filter bottle is sequentially provided with reverse osmosis filter element, water guide cylinder and PP composite filter element from inside to outside, and the upper edge of the annular outer wall of the water guide cylinder There are several water guiding grooves in the axial direction.

A PP composite filter element filter channel is formed between the water guide cylinder and the filter bottle. The PP composite filter element filter channel is provided with a PP composite filter element. The raw water enters the PP composite filter element filter channel from the raw water inlet, and is filtered to the water guiding groove through the PP composite filter element. Finally, it is exported from the purified water outlet;

The reverse osmosis filter element includes a central pipe and a reverse osmosis membrane wound on the central pipe. A reverse osmosis filtration channel is formed between the reverse osmosis filter element and the water guide cylinder, and a hollow reverse osmosis filtration water outlet channel is formed inside the central pipe. The upper end of the reverse osmosis membrane The upper end cover of the reverse osmosis filter element is sealed and installed, and the upper end cover of the reverse osmosis filter element is provided with the purified water inlet port, pure water port and waste water port corresponding to the water inlet of the booster pump, the pure water outlet and the waste water outlet. There is a water outlet for purified water.

Further, the outer wall of the PP upper end cap is sealingly connected to the inner wall of the water guide tube through the first sealing ring, and the PP upper end cap is sealingly connected to the upper end of the reverse osmosis filter element through the second sealing ring.

Further, each insertion port is provided with a double sealing ring groove, and a sealing ring is arranged in the double sealing ring groove.

Further, the water-conducting grooves are formed by longitudinally communicating cross grooves.

Further, the raw water inlet, the booster pump water inlet, the pure water outlet, the purified water outlet and the waste water outlet are arranged side by side along the radial direction of the filter cap.

Further, the raw water inlet and the booster pump water inlet, pure water outlet, purified water outlet and waste water outlet are not arranged in the same radial direction of the bottle cap; the raw water inlet can be arranged at any position on the circumferential surface of the bottle cap.

Further, the PP composite filter element sequentially includes a pre-PP cotton filter element, a pre-activated carbon filter element and a pre-non-woven fabric from the outside to the inside.

Further, the filter bottle and the filter bottle cap are welded and connected, the PP composite filter element is welded with the PP upper end cap by hot melt glue, and the PP composite filter element is welded with the PP lower end cap and the water guide cylinder by hot melt glue.

Further, the reverse osmosis filter element and the side surface of the upper end cover of the reverse osmosis filter element are sealed with waterproof tape.

The beneficial effects of the present invention are:

1. The water inlet and outlet of the present invention are of the plug-in type, which can be positioned on the same straight line to facilitate rapid positioning during the installation process, effectively improve the assembly efficiency of the filter element assembly, and can achieve rapid plugging and sealing, which brings more convenience to use. Follow-up It is enough to replace a filter element, the water output is large, and the problem of secondary pollution caused by the storage bucket is solved.

2. On the basis of the traditional filter bottle, the present invention is designed into two cavities, the outer cavity outside the water guide cylinder is provided with a pre-filter; Penetrating filter element; the inner cavity is closed by the PP upper end cap and the inner wall of the water guide cylinder. When the purified water filtered by the first three-stage pre-filter element flows out of the filter bottle, it is pressurized by the booster pump and then introduced into the inner cavity, and then passed through the reverse The osmotic filter element is filtered to separate waste water and pure water, and the pure water can be directly drunk.

3. The layout is reasonable and the structure is compact. The water channel in the filter bottle is reasonable and smooth, and the water inlet and outlet only need to be distributed at one end, which is beautiful and makes the installation method of the filter bottle more flexible. , pre-fabricated non-woven fabrics) and reverse osmosis filter elements are integrated into a filter bottle, which reduces production costs and simplifies the layout of pipelines between filter elements.

4. The use of a large-flux four-in-one filter element structure provided by the present invention can replace the original water purifier pre-filter element + independent reverse osmosis filter element + storage bucket, which greatly reduces the volume of the filter element and enables product replacement. , The installation is convenient, and the maintenance cost is also reduced, and the water output is large, which solves the problem of secondary pollution caused by the storage bucket.

Description of drawings

Fig. 1 is the structural representation of preferred embodiment 1 of the present invention;

Fig. 2 is the structural representation of filter bottle and filter bottle cap in the preferred embodiment 1 of the present invention;

Fig. 3 is the structural representation of the PP composite filter element in the preferred embodiment 1 of the present invention;

Fig. 4 is the structural representation of the reverse osmosis filter element in the preferred embodiment 1 of the present invention;

Fig. 5 is the structural representation of the water guide cylinder in the preferred embodiment 1 of the present invention;

Fig. 6 is the top view of the water guide cylinder in the preferred embodiment 1 of the present invention;

Fig. 7 is the sectional view of the water guide cylinder in the preferred embodiment 1 of the present invention;

Fig. 8 is the top view of the filter bottle cap in the preferred embodiment 2 of the present invention;

In the figure, filter bottle 1, filter bottle cap 2, water guide cylinder 3, PP composite filter element 4, reverse osmosis filter element 5, PP lower end cap 6, PP upper end cap 7, reverse osmosis filter element upper end cap 8, second sealing ring 9 , the second sealing ring 10, the raw water inlet 21, the booster pump water inlet 22, the pure water outlet 23, the purified water outlet 24, the waste water outlet 25, the water guiding groove 31, the front PP cotton filter element 41, the front activated carbon filter element 42 , front non-woven fabric 43, central tube 51, reverse osmosis membrane 52, purified water outlet port 71, purified water inlet port 81, pure water port 82, waste water port 83, PP composite filter element filter channel 100, The reverse osmosis filtering channel 200, the reverse osmosis filtering water channel 300.

Detailed ways

In order to make it easy to understand the technical means, creation features, achieved goals and effects of the present invention, the present invention will be further described below with reference to the specific figures.

Embodiment 1: refer to a novel high-flux four-in-one filter element structure shown in FIG. 1-FIG. 7, including filter bottle 1, filter bottle cap 2, water guide cylinder 3, PP composite filter element 4, reverse osmosis filter element 5 , PP upper end cap 7 and PP lower end cap 6, the filter bottle cap 2 is provided with a raw water inlet 21, a booster pump water inlet 22, a pure water outlet 23, a purified water outlet 24 and a waste water outlet 25. A reverse osmosis filter element 5, a water guide cylinder 3 and a PP composite filter element 4 are arranged in sequence from the inside to the outside. The annular outer wall of the water guide cylinder 3 is provided with a plurality of water guide grooves 31 along the axial direction.

A PP composite filter element filtration channel 100 is formed between the water guide cylinder 3 and the filter bottle 1. The PP composite filter element filter channel 100 is provided with a PP composite filter element 4. The raw water enters the PP composite filter element filter channel 100 from the raw water inlet 21, and passes through the PP composite filter element. 4. Filtered to the water guiding groove 31, and finally exported from the purified water outlet 24;

The reverse osmosis filter element 5 includes a center pipe 51 and a reverse osmosis membrane 52 wound on the center pipe 51. A reverse osmosis filter channel 200 is formed between the reverse osmosis filter element 5 and the water guide cylinder 3, and a hollow reverse osmosis filter is formed inside the center pipe 51. In the water outlet channel 300, the upper end of the reverse osmosis membrane 52 is sealed and installed with the upper end cover 8 of the reverse osmosis filter element, and the upper end cover 8 of the reverse osmosis filter element is provided with the water inlet of the booster pump 22, the pure water outlet 23 and the purified water outlet 25. The plug port 81 , the pure water plug port 82 and the waste water plug port 83 , the PP upper end cover 7 is provided with a purified water outlet port 71 corresponding to the purified water outlet 24 .

Further, the outer wall of the PP upper end cover 7 is sealedly connected to the inner wall of the water guide cylinder 3 through the first sealing ring 9 , and the PP upper end cover 7 is sealedly connected to the upper end of the reverse osmosis filter element 5 through the second sealing ring 10 .

Further, each insertion port is provided with a double sealing ring groove, and a sealing ring is arranged in the double sealing ring groove.

Further, the water guiding grooves 31 are formed by longitudinally communicating cross grooves, and the cross grooves can effectively achieve the effect of confluence.

Further, the raw water inlet 21 , the booster pump water inlet 22 , the pure water outlet 23 , the purified water outlet 24 and the waste water outlet 25 are arranged side by side along the radial direction of the filter cap 2 .

Further, the PP composite filter element 4 includes a front PP cotton filter element 41 , a front activated carbon filter element 42 and a front non-woven fabric 43 sequentially from the outside to the inside.

Further, the filter bottle 1 is connected with the filter bottle cap 2 by welding, the PP composite filter element 4 is welded with the PP upper end cap by hot melt glue, and the PP composite filter element 4 is welded with the PP lower end cap 6 and the water guide cylinder 3 by hot melt glue.

Further, the reverse osmosis filter element 5 and the side surface of the reverse osmosis filter element upper end cover 8 are sealed with waterproof tape.

The water filtration process of the present invention is:

The tap water is introduced into the PP composite filter element filter channel 100 from the raw water inlet 21, and passes through the pre-PP cotton filter element 41, the pre-activated carbon filter element 42 and the pre-non-woven fabric 43 in turn to play the role of preliminary filtration. The purified water after the preliminary filtration, Confluence to the water guide groove 31, enter the purified water outlet port 71 along the water guide groove 31, and then be led out from the purified water outlet 24, and then driven by the purified water outlet 24 through the pipeline and the booster pump into the booster pump water inlet 22. The purified water enters the reverse osmosis filtration channel 200 from the booster pump water inlet 22, the purified water enters the filter through the side of the reverse osmosis membrane 52, and the filtered pure water enters the pure water plug port 82 through the reverse osmosis filter outlet channel 300, It is led out from the pure water outlet 23 , and the waste water enters the waste water plug port 83 and is led out from the waste water outlet 25 .

Embodiment 2, as shown in FIG. 8, the raw water inlet 21 and the booster pump water inlet 22, the pure water outlet 23, the purified water outlet 24 and the waste water outlet 25 are not arranged in the same radial direction of the bottle cap 2; the raw water inlet 21 can be set At any position on the circumferential surface of the bottle cap 2, the eccentricity can be achieved, and the position of the water inlet hole can be designed at any angle within the range of the filter bottle cap, which is not easily limited by the spatial structure and improves the flexibility of product design.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and modifications fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. A novel high-flux four-in-one filter element structure, characterized in that it comprises a filter bottle (1), a filter bottle cap (2), a water guide cylinder (3), a PP composite filter element (4), a reverse osmosis filter element (5), PP upper end cap (7) and PP lower end cap (6), the filter bottle cap (2) is provided with a raw water inlet (21), a booster pump water inlet (22), a pure water outlet (23), The purified water outlet (24) and the waste water outlet (25), the inside of the filter bottle (1) are sequentially provided with a reverse osmosis filter element (5), a water guide cylinder (3) and a PP composite filter element (4) from the inside to the outside. A plurality of water guiding grooves (31) are arranged on the annular outer wall of the cylinder (3) along the axial direction, A PP composite filter element filter channel (100) is formed between the water guide cylinder (3) and the filter bottle (1), and a PP composite filter element filter channel (100) is provided with a PP composite filter element (4), and the raw water is imported from the raw water inlet (21). Enter the PP composite filter element filter channel (100), filter through the PP composite filter element (4) to the water guide groove (31), and finally export from the purified water outlet (24); The reverse osmosis filter element (5) includes a central pipe (51) and a reverse osmosis membrane (52) wound on the central pipe (51), and a reverse osmosis filter channel is formed between the reverse osmosis filter element (5) and the water guiding cylinder (3). (200), a hollow reverse osmosis filtration water outlet channel (300) is formed inside the central pipe (51), and the upper end of the reverse osmosis membrane (52) is sealed and installed with an upper end cover (8) of a reverse osmosis filter element, and an upper end cover (8) of the reverse osmosis filter element. There are purified water inlet ports (81), pure water inlet ports (82) and waste water inlet ports (83) corresponding to the booster pump water inlet (22), the pure water outlet (23) and the waste water outlet (25). , The PP upper end cover (7) is provided with a purified water outlet port (71) corresponding to the purified water outlet (24). 2. A novel high-flux four-in-one filter element structure according to claim 1, wherein the outer wall of the PP upper end cover (7) is sealed with the inner wall of the water guide (3) through the first sealing ring (9) connection, the PP upper end cover (7) is sealedly connected to the upper end of the reverse osmosis filter element (5) through the second sealing ring (10). 3 . The novel high-flux four-in-one filter element structure according to claim 1 , wherein each insertion port is provided with a double sealing ring groove, and a sealing ring is arranged in the double sealing ring groove. 4 . 4 . The novel high-flux four-in-one filter element structure according to claim 1 , wherein the water guiding grooves ( 31 ) are formed by longitudinally connecting cross grooves. 5 . 5. A novel high-flux four-in-one filter element structure according to claim 1, characterized in that the raw water inlet (21), the booster pump water inlet (22), the pure water outlet (23), and the purified water outlet (24) and the waste water outlet (25) are arranged side by side along the radial direction of the filter bottle cap (2). 6. A novel high-flux four-in-one filter element structure according to claim 1, characterized in that the raw water inlet (21), the booster pump water inlet (22), the pure water outlet (23), and the purified water outlet (24) and the waste water outlet (25) are not arranged in the same radial direction of the bottle cap (2); the raw water inlet (21) can be arranged at any position on the circumferential surface of the bottle cap (2). 7. A novel high-flux four-in-one filter element structure according to claim 1, characterized in that the PP composite filter element (4) sequentially comprises a pre-PP cotton filter element (41), a pre-activated carbon filter element ( 42) and pre-fabricated non-woven (43). 8. A novel high-flux four-in-one filter element structure according to claim 1, characterized in that the filter bottle (1) is welded to the filter bottle cap (2), and the PP composite filter element (4) is connected to the PP upper end cap Hot melt adhesive welding, PP composite filter element (4), PP lower end cover (6) and water guide cylinder (3) are hot melt adhesive welded. 9 . A novel high-flux four-in-one filter element structure according to claim 1 , wherein the reverse osmosis filter element ( 5 ) and the reverse osmosis filter element upper end cover ( 8 ) are sealed with waterproof tape on the sides. 10 .

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