CN215559345U - Composite filter element and water purifier - Google Patents

Abstract

The utility model discloses a composite filter element and a water purifier, wherein the composite filter element comprises a shell, a primary treatment filter element, a fine treatment filter element and a post-treatment filter element which are arranged in the shell, and the fine treatment filter element and the primary treatment filter element are coaxially arranged up and down; the post-treatment filter element is coaxially arranged at the inner side of the primary treatment filter element. Above-mentioned composite filter element, filter core at different levels all integrate in a filter core, and the primary treatment filter core is placed in the outside of rearmounted processing filter core, has both satisfied primary treatment filter core certain surface area and volume requirement, and meticulous processing filter core sets up in one end alone simultaneously, also leaves the space for its diameter augmentations improvement performance. Filter filter core both ends formula design, firstly the shell of rational utilization filter core is as the water proof structure of meticulous processing filter core, utilizes middle separator to keep apart with meticulous processing filter core with leading back filter core simultaneously, has reduced the length of water proof subassembly such as all the other inner skleeve, avoids long big water proof sleeve again and increase cost.

Description

Composite filter element and water purifier

Technical Field

The utility model relates to the technical field of water purification, in particular to a composite filter element and a water purifier.

Background

The prior water purifier usually comprises a front-stage treatment filter element, a reverse osmosis treatment filter element and a rear-stage treatment filter element. The pre-stage treatment filter element mainly contains PP cotton, activated carbon particles, a carbon rod or carbon fibers, and is mainly used for pre-treating inlet water to remove substances such as particle impurities, suspended matters, residual chlorine and the like in the water. Not only plays a role in primary filtration, but also plays a role in protecting the reverse osmosis membrane. The reverse osmosis membrane filter element mainly realizes a high-precision filtering function, and removes most substances except primary water, including heavy metals, bacteria, viruses and other substances. The post-treatment filter element mainly comprises a carbon rod filter element and is mainly used for improving the taste and enabling the yielding water to be sweet. Because the filter cores at different levels have different purposes and different service lives, the filter cores at different levels are separately installed by water purifier manufacturers, more filter cores are five and six filter cores, and less filter cores are two and three filter cores.

At present, similar technologies exist: partial scheme puts preceding stage treatment filter core at reverse osmosis filter core inboard or outside, if preceding stage treatment filter core puts the outside, then can cause the preceding stage filter core volume great, and the material is extravagant and can cause the complete machine volume to be bigger than normal, and simultaneously for water proof, the water proof subassembly volume of its design also can be very big.

If the preceding stage treatment filter core is put in the inboard, then can cause the preceding stage filter core volume to be littleer, preceding stage treatment capacity is not enough or the life-span is not enough, and the risk of blockking up the filter core also is brought to the volume littleer simultaneously.

SUMMERY OF THE UTILITY MODEL

Based on the technical problem, the utility model aims to provide the composite filter element and the water purifier, which have the advantages of reasonable internal layout, small volume and low cost.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

a composite filter element, comprising:

a housing provided with a raw water inlet and a pure water outlet;

a primary treatment cartridge disposed within the housing;

the fine treatment filter element and the primary treatment filter element are coaxially arranged in the shell up and down;

the post-treatment filter element is coaxially arranged at the inner side of the primary treatment filter element;

raw water by in the raw water inlet gets into the shell, pass through in proper order the filtration of primary treatment filter core, meticulous processing filter core and rearmounted processing filter core, the warp the pure water delivery port flows.

Furthermore, the shell is also provided with a purified water outlet, a purified water inlet and a concentrated water outlet; the composite filter element further comprises:

the separator is arranged in the shell and divides the inner cavity of the shell into a first inner cavity and a second inner cavity from top to bottom; the fine treatment filter element is arranged in the first inner cavity, and the primary treatment filter element and the post-treatment filter element are arranged in the second inner cavity; the separator is provided with a first through hole and a second through hole,

a first inner sleeve disposed outside the primary treatment cartridge;

the second inner sleeve is arranged between the primary treatment filter element and the post-treatment filter element;

a third inner sleeve disposed inside the second inner sleeve; the post-treatment filter element is arranged in the third inner sleeve;

a first water passing gap is formed between the inner wall of the first inner sleeve and the outer side of the primary treatment filter element and communicated with the raw water inlet;

a second water passing gap is formed between the outer wall of the second inner sleeve and the inner side of the primary treatment filter element and is communicated with the purified water outlet;

a third water passing gap is formed between the inner wall of the outer shell and the outer wall of the first inner sleeve and is communicated with the purified water inlet;

a fourth water passing gap is formed between the inner wall of the shell and the outer wall of the fine treatment filter element and is communicated with the third water passing gap through the first through hole of the separator;

a fifth water passing gap is formed in the fine treatment filter element and is communicated with the water inlet of the post-treatment filter element through a second through hole of the separator; the water outlet of the post-treatment filter element is communicated with the pure water outlet;

and a sixth water passing gap is arranged between the second inner sleeve and the third inner sleeve, one end of the sixth water passing gap is communicated with a concentrated water outlet of the fine treatment filter element, and the other end of the sixth water passing gap is communicated with a concentrated water outlet.

Further, the post-treatment cartridge comprises:

post-processing the filter material;

the post-processing filter material is arranged at the two ends of the post-processing filter material;

a seventh water passing gap is formed between the outer side of the post-processing filter material and the third inner sleeve, and the seventh water passing gap is communicated with the water inlet of the post-processing filter element;

the rear processing filter material is internally provided with a hollow cavity extending up and down, the hollow cavity forms an eighth water passing gap, and the eighth water passing gap is communicated with a water outlet of the rear processing filter element.

Further, the primary treatment cartridge comprises:

primary treatment filter material;

the primary filter element end cover is arranged at one end of the primary processing filter material far away from the separating piece;

one end of the primary treatment filter element close to the separator is abutted against the end face of the separator.

Further, a seal is disposed between the partition and an inner wall of the housing.

Further, the fine processing cartridge comprises:

a water passing hole is formed in the side wall of the central tube, and the fifth water passing gap is formed inside the central tube;

and the reverse osmosis membrane is coated on the periphery of the central pipe.

Further, meticulous processing filter core still includes meticulous filter core end cover, meticulous filter core end cover set up in reverse osmosis membrane is close to the one end of separator to the cover is established and is fixed in the second through-hole of separator, be provided with the dense water export on the meticulous filter core end cover.

Further, the separator includes:

the center of the horizontal clapboard part is provided with the second through hole, and the horizontal clapboard part close to the inner wall of the shell is provided with the first through hole;

the outer cylinder part is formed by vertically extending along the outer side of the horizontal clapboard part, and the outer side wall of the outer cylinder part is in sealing connection with the inner wall of the shell;

the inner cylinder part is formed by vertically extending along the second through hole, a boss part is arranged on the end face of the fine filter element end cover, and the boss part is inserted into the inner cylinder part and is connected with the inner wall of the inner cylinder part in a sealing manner;

and the middle cylinder part is arranged between the outer cylinder part and the inner cylinder part and is used for being connected with the second inner sleeve in a sleeved mode.

Further, the central tube is fixedly connected with the third inner sleeve in an inserting mode.

The utility model also comprises a water purifier which comprises the composite filter element.

Compared with the prior art, the utility model has the advantages and positive effects that:

the primary treatment filter element, the fine treatment filter element and the post-treatment filter element are integrated in one filter element, the primary treatment filter element and the post-treatment filter element are arranged at one end of the same side, and the primary treatment filter element is arranged on the outer side of the post-treatment filter element, so that the requirements of the primary treatment filter element on certain surface area and volume are met; meanwhile, the fine treatment filter element is independently arranged at one end, and a space is reserved for the diameter amplification and performance improvement of the fine treatment filter element. Filter filter core both ends formula design, firstly the shell of rational utilization filter core is as the water proof structure of meticulous processing filter core, utilizes middle partition member to keep apart front and back filter core and meticulous processing filter core simultaneously, has reduced the length of water proof subassembly such as all the other inner skleeve, avoids long big water proof sleeve again and increase cost.

Other features and advantages of the present invention will become more apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a front view of a composite filter element of the present invention;

FIG. 2 is a cross-sectional view of a composite filter element according to the present invention;

FIG. 3 is a schematic view of the water flow of the composite filter element of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1 at I;

description of reference numerals:

a housing 100; a raw water inlet 110; a purified water inlet 120; a purified water outlet 130; a concentrate outlet 140; a pure water outlet 150;

a primary treatment cartridge 200; a primary treatment filter 210; primary cartridge end cap 220;

a fine treatment cartridge 300; a center tube 310; a reverse osmosis membrane 320; fine filter element end cap 330; a boss portion 331;

a post-treatment cartridge 400; a post-treatment filter 410; a rear cartridge end cap 420;

a separator 500; a horizontal barrier portion 510; an outer cylindrical portion 520; an inner cylindrical portion 530; a middle cylinder part 540;

a first inner sleeve 600;

a second inner sleeve 700;

a third inner sleeve 800;

a first water passing gap A; a second water passing gap B; a third water passing gap C; a fourth water passing gap D; a fifth water gap E; a sixth water passing gap F; a seventh water passing gap G; an eighth water passing gap H.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements 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.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

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 otherwise specified.

Referring to fig. 1-4, one embodiment of a composite filter element of the present invention is shown. The composite cartridge includes a housing 100, a primary treatment cartridge 200 disposed within the housing 100, a fine treatment cartridge 300, and a post-treatment cartridge 400. One end of the housing 100 is provided with a raw water inlet 110, a purified water outlet 130, a purified water inlet 120, a purified water outlet 150, and a concentrated water outlet 140. The fine treatment cartridge 300 and the primary treatment cartridge 200 are coaxially disposed in the housing 100 up and down; and a rear treatment cartridge 400 coaxially disposed inside the primary treatment cartridge 200. Raw water enters the housing 100 through the raw water inlet 110, is sequentially filtered by the primary treatment filter element 200, the fine treatment filter element 300 and the post-treatment filter element 400, and flows out through the pure water outlet 150.

Also provided in the outer shell 100 are a partition 500 for water-blocking, a first inner sleeve 600, a second inner sleeve 700, and a third inner sleeve 800.

The partition 500 divides the inner cavity of the case 100 into a first inner cavity and a second inner cavity up and down; a fine treatment cartridge 300 is disposed in the first interior chamber and a primary treatment cartridge 200 and a post-treatment cartridge 400 are disposed in the second interior chamber. The partition 500 is provided with a first through hole and a second through hole.

The first inner sleeve 600, the second inner sleeve 700 and the third inner sleeve 800 are coaxially sleeved in sequence, that is, the first inner sleeve 600 is arranged outside the primary treatment filter element 200; the second inner sleeve 700 is disposed between the primary treatment cartridge 200 and the rear treatment cartridge 400; the third inner sleeve 800 is disposed inside the second inner sleeve 700. The rear treatment cartridge 400 is disposed within the third inner sleeve 800.

A first water passing gap A is formed between the inner wall of the first inner sleeve 600 and the outer side of the primary treatment filter element 200 and is communicated with the raw water inlet 110;

a second water passing gap B is formed between the outer wall of the second inner sleeve 700 and the inner side of the primary treatment filter element 200 and is communicated with the purified water outlet 130;

a third water passing gap C is arranged between the inner wall of the shell 100 and the outer wall of the first sleeve and is communicated with the purified water inlet 120;

a fourth water passing gap D is formed between the inner wall of the housing 100 and the outer wall of the fine treatment filter element 300, and the fourth water passing gap D is communicated with the third water passing gap C through the first through hole of the partition 500;

a fifth water passing gap E is formed inside the fine treatment filter element 300 and is communicated with the water inlet of the post-treatment filter element 400 through a second through hole of the partition 500; the water outlet of the post-treatment filter element 400 is communicated with a pure water outlet;

a sixth water passing gap F is formed between the second inner sleeve 700 and the third inner sleeve 800, one end of the sixth water passing gap F is communicated with the concentrated water outlet of the fine treatment filter element 300, and the other end is communicated with the concentrated water outlet 140.

Referring to fig. 3, raw water enters the first water passing gap a from the raw water inlet 110, is filtered by the primary treatment filter element 200, and then flows out from the purified water outlet 130 through the second water passing gap B. The purified water flowing out of the purified water outlet 130 flows in from the purified water inlet 120 after being pressurized by the booster pump, flows into the fine treatment filter element 300 from the water inlet of the fine treatment filter element 300 through the third water passing gap C and the fourth water passing gap D, and flows out from the purified water outlet 150 after being filtered by the fine treatment filter element 300 and then being filtered by the post-treatment filter element 400 in the third inner sleeve 800 after the purified water is filtered by the fine treatment filter element 300 and flows out from the fifth water passing gap E in the fine treatment filter element 300; the concentrated water in the fine treatment filter element 300 flows out through the concentrated water inlet and the sixth water gap F, and is finally discharged through the concentrated water outlet 140.

In the composite filter element, the primary treatment filter element 200, the fine treatment filter element 300 and the post-treatment filter element 400 are integrated in one filter element, the primary treatment filter element 200 and the post-treatment filter element 400 are arranged at one end of the same side, and the primary treatment filter element 200 is arranged at the outer side of the post-treatment filter element 400, so that the requirements of certain surface area and volume of the primary treatment filter element 200 are met; meanwhile, the fine treatment filter element 300 is independently arranged at one end, and a space is reserved for the diameter amplification and performance improvement of the fine treatment filter element 300. Filter filter core both ends formula design, firstly shell 100 of rational utilization filter core is as the water proof structure of meticulous processing filter core 300, utilizes middle partition member to keep apart front and back filter core and meticulous processing filter core 300 simultaneously, has reduced the length of water proof subassemblies such as all the other inner skleeves, avoids long big water proof sleeve again and increase cost.

In this embodiment, the post-treatment filter element 400 includes a post-treatment filter material 410 and post-treatment filter element end caps 420 respectively disposed at two ends of the post-treatment filter material 410, a seventh water passing gap G is disposed between the outer side of the post-treatment filter material 410 and the third inner sleeve 800, and the seventh water passing gap G is communicated with the water inlet of the post-treatment filter element 400. The rear treatment filter material 410 has a hollow cavity extending vertically therein, the hollow cavity forms an eighth water passing gap H, and the eighth water passing gap H is communicated with the water outlet of the rear treatment filter element 400.

The primary treatment filter 200 includes a primary treatment filter 210 and a primary filter end cap 220 disposed at one end of the primary treatment filter 210 remote from the partition 500. One end of the primary treatment cartridge 200 adjacent the partition 500 abuts an end face of the partition 500.

The primary treatment filter material 210 may include a cotton PP filter element and a carbon rod filter element arranged in sequence from outside to inside, or a cotton first PP filter element, a carbon fiber filter element and a cotton second PP filter element arranged in sequence from outside to inside, or a cotton first PP filter element, a carbon rod filter element and a cotton second PP filter element arranged in sequence from outside to inside.

The fine treatment cartridge 300 includes a center tube 310, a reverse osmosis membrane 320 wrapped around the outer circumference of the center tube 310, and a fine cartridge end cap 330. The side wall of the central tube 310 is provided with water passing holes, and a fifth water passing gap E is formed inside the central tube 310. In this embodiment, the central tube 310 is inserted and fixed to the third inner sleeve 800, and one end of the central tube 310 is sleeved in the third inner sleeve 800, and the two are connected by the second sealing ring in a sealing manner. The fine filter element end cap 330 is disposed at one end of the reverse osmosis membrane 320 close to the separator 500, and is sleeved in the second through hole fixed on the separator 500, and the fine filter element end cap 330 is provided with a concentrated water outlet.

In the present embodiment, as shown in fig. 4, the partitioning member 500 includes a horizontal partitioning portion 510, an outer cylindrical portion 520, an intermediate cylindrical portion 540, and an inner cylindrical portion 530. The center of the horizontal partition part 510 is provided with a second through hole, the inner cylinder part 530 is formed by extending vertically along the second through hole, a boss part 331 is arranged on the end surface of the fine filter element end cover 330, and the boss part 331 is inserted into the inner cylinder part 530 and is connected with the inner wall of the inner cylinder part 530 in a sealing way. The partition 500 extends vertically along the outside of the horizontal partition 510 to form an outer cylindrical part 520, and the outer cylindrical part 520 is hermetically connected to the inner wall of the casing 100. In the present embodiment, the outer cylinder 520 of the partition 500 and the inner wall of the casing 100 may be sealingly connected by a first sealing ring. A first through hole is formed in the horizontal barrier portion 510 adjacent to the inner wall of the housing 100 to communicate the third water passing gap C and the fourth water passing gap D. The middle cylinder 540 is located between the outer cylinder 520 and the inner cylinder 530, and in this embodiment, the outer cylinder 520 and the inner cylinder 530 extend toward the fine processing cartridge 300 side, i.e., are disposed in the first inner cavity; the middle cylinder 540 extends in the opposite direction, i.e. is disposed in the second inner cavity, and one end of the second inner sleeve 700 is sleeved in the middle cylinder 540.

The utility model also comprises a water purifier which comprises the composite filter element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (10)

1. A composite filter element, comprising:

a housing provided with a raw water inlet and a pure water outlet;

a primary treatment cartridge disposed within the housing;

the fine treatment filter element and the primary treatment filter element are coaxially arranged in the shell up and down;

the post-treatment filter element is coaxially arranged at the inner side of the primary treatment filter element;

raw water by in the raw water inlet gets into the shell, pass through in proper order the filtration of primary treatment filter core, meticulous processing filter core and rearmounted processing filter core, the warp the pure water delivery port flows.

2. The composite filter element of claim 1, wherein the housing is further provided with a purified water outlet, a purified water inlet, and a concentrated water outlet; the composite filter element further comprises:

the separator is arranged in the shell and divides the inner cavity of the shell into a first inner cavity and a second inner cavity from top to bottom; the fine treatment filter element is arranged in the first inner cavity, and the primary treatment filter element and the post-treatment filter element are arranged in the second inner cavity; the separator is provided with a first through hole and a second through hole,

a first inner sleeve disposed outside the primary treatment cartridge;

the second inner sleeve is arranged between the primary treatment filter element and the post-treatment filter element;

a third inner sleeve disposed inside the second inner sleeve; the post-treatment filter element is arranged in the third inner sleeve;

a first water passing gap is formed between the inner wall of the first inner sleeve and the outer side of the primary treatment filter element and communicated with the raw water inlet;

a second water passing gap is formed between the outer wall of the second inner sleeve and the inner side of the primary treatment filter element and is communicated with the purified water outlet;

a third water passing gap is formed between the inner wall of the outer shell and the outer wall of the first inner sleeve and is communicated with the purified water inlet;

a fourth water passing gap is formed between the inner wall of the shell and the outer wall of the fine treatment filter element and is communicated with the third water passing gap through the first through hole of the separator;

a fifth water passing gap is formed in the fine treatment filter element and is communicated with the water inlet of the post-treatment filter element through a second through hole of the separator; the water outlet of the post-treatment filter element is communicated with the pure water outlet;

and a sixth water passing gap is arranged between the second inner sleeve and the third inner sleeve, one end of the sixth water passing gap is communicated with a concentrated water outlet of the fine treatment filter element, and the other end of the sixth water passing gap is communicated with a concentrated water outlet.

3. The composite filter cartridge of claim 2, wherein the aftertreatment filter cartridge comprises:

post-processing the filter material;

the post-processing filter material is arranged at the two ends of the post-processing filter material;

a seventh water passing gap is formed between the outer side of the post-processing filter material and the third inner sleeve, and the seventh water passing gap is communicated with the water inlet of the post-processing filter element;

the rear processing filter material is internally provided with a hollow cavity extending up and down, the hollow cavity forms an eighth water passing gap, and the eighth water passing gap is communicated with a water outlet of the rear processing filter element.

4. The composite filter cartridge of claim 2, wherein the primary treatment cartridge comprises:

primary treatment filter material;

the primary filter element end cover is arranged at one end of the primary processing filter material far away from the separating piece;

one end of the primary treatment filter element close to the separator is abutted against the end face of the separator.

5. The composite filter cartridge of claim 2, wherein a seal is disposed between the partition and an inner wall of the housing.

6. The composite filter cartridge of claim 2, wherein the fine treatment cartridge comprises:

a water passing hole is formed in the side wall of the central tube, and the fifth water passing gap is formed inside the central tube;

and the reverse osmosis membrane is coated on the periphery of the central pipe.

7. The composite filter element according to claim 6, wherein the fine treatment filter element further comprises a fine filter element end cap, the fine filter element end cap is arranged at one end of the reverse osmosis membrane close to the separator and is sleeved and fixed in the second through hole of the separator, and a concentrated water outlet is arranged on the fine filter element end cap.

8. The composite filter cartridge of claim 7, wherein the partition comprises:

the center of the horizontal clapboard part is provided with the second through hole, and the horizontal clapboard part close to the inner wall of the shell is provided with the first through hole;

the outer cylinder part is formed by vertically extending along the outer side of the horizontal clapboard part, and the outer side wall of the outer cylinder part is in sealing connection with the inner wall of the shell;

the inner cylinder part is formed by vertically extending along the second through hole, a boss part is arranged on the end face of the fine filter element end cover, and the boss part is inserted into the inner cylinder part and is connected with the inner wall of the inner cylinder part in a sealing manner;

and the middle cylinder part is arranged between the outer cylinder part and the inner cylinder part and is used for being connected with the second inner sleeve in a sleeved mode.

9. The composite filter element according to any one of claims 6 to 8, wherein the central tube is fixedly inserted with the third inner sleeve.

10. A water purifier comprising the composite filter element according to any one of claims 1 to 9.

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