CN214327329U

CN214327329U - Composite filter element and water purifying device

Info

Publication number: CN214327329U
Application number: CN202022918537.XU
Authority: CN
Inventors: 金海军; 那勤夫; 方锡奉; 鞠鹏
Original assignee: Nanjing Bikelun Water Purification Technology Co ltd
Current assignee: Nanjing Bikelun Water Purification Technology Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-10-01
Anticipated expiration: 2030-12-08

Abstract

The utility model belongs to the technical field of water purification filter core equipment, a composite filter element and purifier are disclosed, composite filter element includes the casing, is formed with mutual independence divided leading filtering area and reverse osmosis filtering area in the casing, leading filtering area and reverse osmosis filtering area arrange from top to bottom along the axial, are equipped with former mouth of a river, leading drainage water export, leading drainage water import, the mouth of a river and dense mouth of a river on the casing, leading filtering component and reverse osmosis filtering component, leading filtering component establishes at leading filtering area, reverse osmosis filtering component establishes at reverse osmosis filtering area. According to the composite filter element provided by the invention, the pre-filtering area and the reverse osmosis filtering area are vertically arranged, so that various filter materials are integrated into one filter element, and the filtering of household drinking water can be completed by one filter element, the size of the water purifying device is greatly reduced, the cost of the filter element is reduced, the structure is simple, the occupied proportion of the filter materials is convenient to adjust, and great convenience is brought to the replacement and use of a user.

Description

Composite filter element and water purifying device

Technical Field

The utility model belongs to the technical field of water purification filter core equipment, especially, relate to a composite filter core and purifier.

Background

At present, the existing filter elements in the market are roughly divided into two types, one type is that only a single filter element is arranged in a single filter material, when in use, a plurality of filter elements which are arranged in different filter materials are arranged in parallel, and external complex water paths are connected together, so that the occupied size is large, the assembly is complicated, and the cost is high; the composite filter element is a composite filter element, only two or three kinds of filter materials are compounded in most cases, the standard of drinking water is realized, a plurality of filter elements are combined for use, even if all the filter materials required are compounded to one filter element rarely, the structure is complex, the occupied proportion among various filter materials is not well adjusted, and the waste of partial filter materials is caused.

Through the above analysis, the problems and defects of the prior art are as follows:

(1) the existing single filter element occupies a large volume, is complex to assemble and has high cost.

(2) The integration level of the existing composite filter element is not high enough.

(3) The structure is complicated, the occupation proportion among various filter materials is not well adjusted, and the waves of partial filter materials are caused

Disclosure of Invention

In order to solve the problems existing in the prior art, the utility model provides a composite filter element and water purifying device, which not only integrates a filter element with a plurality of filter materials universal for a water purifier, reduces the volume of the filter element, but also has simple structure and low cost.

The utility model discloses the purpose is realized like this, a composite filter element includes:

the device comprises a shell, a front filtering area and a reverse osmosis filtering area, wherein the front filtering area and the reverse osmosis filtering area are formed in the shell and are separated independently from each other, and the front filtering area and the reverse osmosis filtering area are arranged upwards and downwards along an axial direction; the shell is provided with an original water gap, a front filtered water outlet, a front filtered water inlet, a pure water gap and a concentrated water gap;

leading filtering component and reverse osmosis filter assembly, leading filtering component establishes at leading filtering area, reverse osmosis filter assembly establishes at reverse osmosis filtering area.

Furthermore, the preposed filtering area is communicated with a raw water port and a preposed filtered water outlet, and the reverse osmosis filtering area is communicated with a preposed filtered water inlet, a pure water port and a concentrated water port.

And the device is further characterized in that a partition wall is arranged in the shell, the interior of the shell is partitioned into an upper independent closed cavity and a lower independent closed cavity, and the upper independent closed cavity and the lower independent closed cavity are used for respectively accommodating the pre-filtering area and the reverse osmosis filtering area.

Further, a cylinder cover is fixedly arranged at the upper end of the shell, a raw water opening, a front filtered water outlet and a pure water opening are formed in the cylinder cover, three annular convex walls which extend downwards along the axial direction and are used for connecting the filtering component are arranged on the inner end face of the cylinder cover, a first convex wall, a second convex wall and a third convex wall are sequentially arranged along the radial direction from outside to inside, the raw water opening is communicated with a gap between the first convex wall and the inner wall of the cylinder cover, the front filtered water outlet is communicated with a gap between the inner wall of the first convex wall and the outer wall of the second convex wall, and the pure water opening is communicated with the inside of the third convex wall;

the inner end face of the lower end of the shell is provided with a fourth convex wall which extends upwards along the axial direction and is used for being connected with a filtering component, the front filtering water inlet is communicated with a gap between the fourth convex wall and the inner wall of the shell, and the thick water port is communicated with the inside of the fourth convex wall.

Furthermore, the partition wall comprises a partition ring and a second convex wall, the upper insertion end of the partition ring penetrates through the inner seal of the pre-filter assembly and is connected with the second convex wall, a seal is formed between the outer wall of the lower partition end of the partition ring and the inner wall of the shell, an upper annular cavity is formed between the outer wall of the second convex wall and the outer wall of the partition ring and the inner wall of the shell to accommodate the pre-filter area, and a lower cavity is formed between the inner wall of the lower part of the shell and the inner wall of the partition ring and the inner wall of the second convex wall to accommodate the reverse osmosis filter area.

Furthermore, the preposed filtering component is arranged in the upper annular cavity and sleeved on the periphery of the upper connecting end of the separating ring, the upper connecting end of the preposed filtering component is connected with the first convex wall in a sealing mode, the reverse osmosis component is arranged in the lower cavity and located on the lower portion of the separating ring, and the lower connecting end of the reverse osmosis component is connected in a sealing mode and is inserted into the fourth convex wall in a sealing mode.

Furthermore, the preposed filter assembly comprises a second annular upper end cover, a second annular lower end cover and a preposed filter material, the second upper end cover and the second lower end cover are respectively covered at two ends of the preposed filter material, and the upper inserting end of the second upper end cover is hermetically inserted into the first convex wall.

Further, the reverse osmosis filtration module comprises:

the outer wall of the central tube is provided with a water through hole, the upper end of the central tube is opened and is in sealing connection with the central hole at the lower part of the separating ring, and the lower end port of the central tube is sealed;

the reverse osmosis membrane is wound outside the central tube;

the sealing adhesive tape is wound on the outer surface of the reverse osmosis membrane;

the upper inserting end of the first lower end cover is hermetically inserted into the fourth convex wall, the lower part of the first lower end cover is buckled on the lower end face of the reverse osmosis membrane and a gap is reserved between the lower end face of the reverse osmosis membrane and the lower end face of the reverse osmosis membrane, and a vertical flanging of the first lower end cover is hermetically connected with the sealing adhesive tape;

furthermore, the composite filter element also comprises a rear-mounted filter unit which is arranged inside the separating ring, and the upper connecting end of the rear-mounted filter unit is hermetically inserted into the third convex wall;

the rear filter unit comprises a rear filter material, an upper end cover III and a lower end cover III, the upper end cover III and the lower end cover III are respectively covered at two ends of the rear filter material, and the upper part inserting end of the upper end cover is hermetically inserted in the third convex wall;

another object of the utility model is to provide a water purification device, this water purification device installs composite filter element.

By combining all the technical schemes, the invention has the advantages and positive effects that:

the utility model provides a novel water purification filter core of combination formula, the filter media that will purify water commonly used is whole to an integrated filter core, realizes that a filter core just can accomplish the filtration of drinking water, has reduced purifier's volume greatly, and waterway structure is comparatively simple moreover, and the setting at the mouth of a river is more nimble, and it is more convenient to use, and the cost of filter core has also obtained very big reduction.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.

Fig. 1 is a cross-sectional view of a composite filter element according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a reverse osmosis filtration module according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of a pre-filter assembly according to an embodiment of the present invention.

Fig. 4 is a cross-sectional view of a post-filter unit according to an embodiment of the present invention.

In the figure: 100 of a shell; 200 a pre-filter assembly; 300 a reverse osmosis filtration module; 400 post-filter unit; a 500 divider wall; 1, a cylinder cover; 2, a separating ring; 3, a central tube; 4, a reverse osmosis membrane; 5, a first lower end cover; 6 sealing the adhesive tape; 7, an upper end cover II; 8, a second lower end cover; 9, leading filter materials; 10, an upper end cover III; 11, a third lower end cover; 12, post-filter material; 101 a first convex wall; 102 a second convex wall; 103 a third convex wall; 104 a fourth convex wall; k1 raw water port; k2 front filtered water outlet; k3 is provided with a front filtered water inlet; k4 pure water port; k5 dense nozzle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Aiming at the problems in the prior art, the utility model provides a composite filter element and a water purifying device, which are described in detail in the following with the accompanying drawings.

Referring to fig. 1 to 4, the composite filter element provided in this embodiment includes a housing 100, a pre-filter assembly 200, and a reverse osmosis filter assembly 300, wherein a pre-filter region D1 and a reverse osmosis filter region D2 are formed in the housing and are separated from each other, the pre-filter region D1 and the reverse osmosis filter region D2 are arranged axially upward and downward, the housing is provided with a raw water port K1, a pre-filtered water outlet K2, a pre-filtered water inlet K3, a pure water port K4, and a concentrated water port K5, the pre-filter assembly 200 is disposed in the pre-filter region, and the reverse osmosis filter assembly 300 is disposed in the reverse osmosis filter region.

In the optional technical solution of this embodiment, the pre-filtering area D1 is communicated with a raw water port K1 and a pre-filtered water outlet K2, and the reverse osmosis filtering area D2 is communicated with a pre-filtered water inlet K3, a pure water port K4 and a concentrated water port K5.

In the optional technical solution of this embodiment, a partition wall 500 is provided in the casing 100, and the inside of the casing is partitioned into an upper and a lower independent sealed cavities, which respectively accommodate the pre-filtering region D1 and the reverse osmosis filtering region D2.

In the optional technical solution of this embodiment, a cylinder cover 1 is fixedly arranged at the upper end of a housing 100, a raw water port K1, a front filtered water outlet K2 and a pure water port K4 are arranged on the cylinder cover 1, three annular convex walls extending axially downward and used for connecting a filter assembly are arranged on the inner end surface of the cylinder cover 1, a first convex wall 101, a second convex wall 102 and a third convex wall 103 are sequentially arranged from outside to inside in the radial direction, the raw water port K1 communicates the gap between the first convex wall 101 and the inner wall of the cylinder cover 1, the front filtered water outlet K2 communicates the gap between the inner wall of the first convex wall 101 and the outer wall of the second convex wall 102, and the pure water port K4 communicates the inside of the third convex wall 103;

the inner end surface of the lower end of the shell 100 is provided with a fourth convex wall 104 which extends upwards along the axial direction and is used for connecting a filter assembly, the front filtered water inlet K3 is communicated with a gap between the fourth convex wall 104 and the inner wall of the shell 100, and the thick water outlet K5 is communicated with the inside of the fourth convex wall 104.

In an alternative embodiment of the present invention, the partition wall 500 includes a partition ring 2 and a second convex wall 102, an upper plug end of the partition ring 2 penetrates through the interior of the pre-filter assembly 200 and is connected to the second convex wall 102 in a sealed manner, a seal is formed between an outer wall of a lower partition end of the partition ring 2 and an inner wall of the casing 100, an upper annular cavity is formed between an outer wall of the second convex wall 102 and an outer wall of the partition ring 2 and an inner wall of the casing 100 to accommodate the pre-filter region D1, and a lower cavity is formed between an inner wall of the lower casing 100 and an inner wall of the partition ring 2 and an inner wall of the second convex wall 102 to accommodate the reverse osmosis filter region D2.

In the optional technical scheme of this embodiment, the pre-filter assembly 200 is disposed in the upper annular chamber and is sleeved on the periphery of the upper connecting end of the separation ring 2, the upper connecting end of the pre-filter assembly 200 is hermetically connected to the first convex wall 101, the reverse osmosis assembly 300 is disposed in the lower chamber and is located at the lower portion of the separation ring 2, and the lower connecting end of the reverse osmosis assembly 300 is hermetically inserted into the fourth convex wall 104.

In an optional technical scheme of this embodiment, the pre-filter assembly 200 includes a second annular upper end cap 7, a second annular lower end cap 8, and a pre-filter 9, the second annular upper end cap 7 and the second annular lower end cap 8 are respectively covered at two ends of the pre-filter, and an upper insertion end of the second annular upper end cap 7 is hermetically inserted into the first convex wall 101.

In the optional technical solution of this embodiment, the reverse osmosis filtration assembly 300 includes a central tube 3, a reverse osmosis membrane 4, a sealing tape 6 and a first lower end cap 5, a water through hole is provided on the outer wall of the central tube 3, an upper end of the central tube 3 is opened and is hermetically connected with a central hole at the lower part of the separation ring 2, a lower end port of the central tube 3 is hermetically arranged to isolate the lower end port of the central tube 3 from an external water path, the reverse osmosis membrane 4 is wound outside the central tube 3, the sealing tape 6 is wound on the outer surface of the reverse osmosis membrane 4 to form a seal for the side surface of the reverse osmosis membrane 4, an upper insertion end of the first lower end cap 5 is hermetically inserted into the fourth convex wall 104, the lower part is fastened on the lower end surface of the reverse osmosis membrane 4 and has a gap with the lower end surface of the reverse osmosis membrane 4, a vertical flange of the first lower end cap 5 is hermetically connected with the sealing tape to enable water flow to sequentially pass through the gap and the inside of the fourth convex wall 104, finally flows out from a concentrate port K5;

in the optional technical solution of this embodiment, the composite filter element further includes a post-filter unit 400, the post-filter unit 400 is disposed inside the separation ring 2, and the upper connection end is inserted in the third convex wall 103 in a sealing manner;

the rear filter unit 400 comprises a rear filter material 12, an upper end cover III 10 and a lower end cover III 11, the upper end cover III 10 and the lower end cover III 11 are respectively covered at two ends of the rear filter material 12, and the upper insertion end of the upper end cover III 11 is hermetically inserted in the third convex wall 103;

therefore, pure water can enter the rear filter assembly 400 through the filtration of the rear filter material 12, then sequentially passes through the third upper end cover 10 and the third convex wall 103, and finally flows out of the pure water port K4, so that the effect of improving the taste of the pure water is achieved.

The utility model discloses specific filtration principle as follows: pre-filtering: raw water flows into a gap between the outer wall of the pre-filter assembly 200 and the inner wall of the upper part of the shell 100 through the raw water port K1, enters a gap between the pre-filter assembly 200 and the partition wall 500 after being filtered by the pre-filter material 9, and finally flows out through a pre-filtered water outlet K2 communicated with the gap;

reverse osmosis filtration: the front filtered water after flowing out is pressurized from the outside, flows into the space between the outer wall of the reverse osmosis filtering component 300 and the inner wall of the lower part of the shell 100 through the front filtered water inlet K3, enters the reverse osmosis membrane 4 from the upper end surface of the reverse osmosis membrane 4 for filtering, the obtained concentrated water is discharged from the lower end surface of the reverse osmosis membrane, passes through the lower end cover and the inner part of the fourth convex wall 104, and is finally discharged from the concentrated water port K5, the obtained pure water flows into the central pipe 3 from the water through hole of the central pipe 3, then flows into the partition wall 500 from the central pipe 3, and is filtered through the rear filtering component 400 arranged in the partition wall 500, so that the taste of the pure water is improved, and finally flows out from the pure water port K4 through the inner part of the third convex wall 103.

It should be noted that, during the pre-filtration, the water flow direction can also be reversed, for example, the raw water can flow in from the pre-filtered water outlet K2, and flow out from the raw water outlet K1 after being filtered by the pre-filtration module 200;

in the reverse osmosis filtration, the prefilter water inlet K3 and the concentrate water port K5 may be interchanged, and for example, the pressurized prefilter water may flow in from the concentrate water port K5, flow in to the reverse osmosis membrane 4 through the lower end surface of the reverse osmosis membrane 4, and be filtered, and the concentrate water may flow out from the upper end surface of the reverse osmosis membrane 4, and finally be discharged through the prefilter water inlet K3, without changing the pure water path.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "upper", "lower", "leading", "trailing", and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made by those skilled in the art within the technical scope of the present invention should be covered within the scope of the present invention.

Claims

1. A composite filter element, comprising:

2. The composite filter element of claim 1, wherein the prefilter zone is in communication with a raw water port and a prefilter water outlet, and the reverse osmosis filter zone is in communication with a prefilter water inlet, a purified water port, and a concentrate water port.

3. The composite filter element of claim 1, wherein a partition wall is disposed in the housing to separate the interior of the housing into an upper and a lower independent sealed chambers for respectively accommodating the pre-filtration zone and the reverse osmosis filtration zone.

4. The composite filter element according to claim 3, wherein a cartridge cover is fixedly arranged at the upper end of the shell, a raw water port, a pre-filtered water outlet and a pure water port are arranged on the cartridge cover, three annular convex walls which extend downwards along the axial direction and are used for connecting the filter assembly are arranged on the inner end surface of the cartridge cover, a first convex wall, a second convex wall and a third convex wall are arranged in sequence from outside to inside along the radial direction, the raw water port is communicated with a gap between the first convex wall and the inner wall of the cartridge cover, the pre-filtered water outlet is communicated with a gap between the inner wall of the first convex wall and the outer wall of the second convex wall, and the pure water port is communicated with the inside of the third convex wall;

5. The composite filter element according to claim 4, wherein the partition wall comprises a partition ring and a second convex wall, a pre-filter assembly is sleeved on the periphery of the plug end of the upper part of the partition ring, the plug end of the upper part of the partition ring is hermetically inserted into the second convex wall, a seal is formed between the outer wall of the partition end of the lower part of the partition ring and the inner wall of the housing, an upper annular cavity is formed between the outer wall of the second convex wall and the outer wall of the partition ring and the inner wall of the housing to accommodate the pre-filter area, and a lower cavity is formed between the inner wall of the lower part of the housing and the inner wall of the partition ring and the inner wall of the second convex wall to accommodate the reverse osmosis filter area.

6. The composite filter element according to claim 5, wherein the pre-filter assembly is disposed in the upper annular chamber and is sleeved on the periphery of the upper connecting end of the separation ring, the upper connecting end of the pre-filter assembly is hermetically connected with the first convex wall, the reverse osmosis filter assembly is disposed in the lower chamber and is located at the lower part of the separation ring, and the lower connecting end of the reverse osmosis filter assembly is hermetically inserted into the fourth convex wall.

7. The composite filter element according to claim 6, wherein the prefilter assembly comprises a second annular upper end cap, a second annular lower end cap and prefilter material, the second upper end cap and the second lower end cap are respectively covered at two ends of the prefilter material, and the upper insertion end of the second upper end cap is hermetically inserted into the first convex wall.

8. The composite filter cartridge of claim 6, wherein the reverse osmosis filtration assembly comprises:

the reverse osmosis membrane is wound outside the central tube;

the lower end cover I is provided with an upper insertion end which is hermetically inserted into the fourth convex wall, the lower part of the lower end cover I is buckled on the lower end face of the reverse osmosis membrane and a gap is reserved between the lower end face of the reverse osmosis membrane and the lower end face of the reverse osmosis membrane, and a vertical flanging of the lower end cover I is hermetically connected with the sealing adhesive tape.

9. The composite filter element of claim 6, further comprising:

the rear filtering unit is arranged inside the separating ring, and the upper connecting end of the rear filtering unit is hermetically inserted into the third convex wall;

the rear filter unit comprises a rear filter material, an upper end cover III and a lower end cover III, the upper end cover III and the lower end cover III are respectively covered at two ends of the rear filter material, and the upper part inserting end of the upper end cover is hermetically inserted in the third convex wall.

10. A water purification device, characterized in that the water purification device is provided with a composite filter element according to any one of claims 1 to 9.