CN214936646U

CN214936646U - Composite filter element

Info

Publication number: CN214936646U
Application number: CN202121268417.8U
Authority: CN
Inventors: 屈丙勇; 余锋; 徐威; 陈恩华
Original assignee: Guangdong Shuihudun Health Technology Co Ltd
Current assignee: Guangdong Shuihudun Health Technology Co Ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-11-30
Anticipated expiration: 2031-06-07

Abstract

The utility model relates to a composite filter element. The composite filter element of the utility model comprises a shell, a first filter cavity, a second filter cavity and a third filter cavity are formed in the shell, a reverse osmosis membrane is arranged in the third filter cavity and forms a concentrated water outlet and a purified water outlet, and a first water inlet, a second water inlet, a first drain outlet, a concentrated water outlet and a purified water outlet are arranged at one end of the shell; the first filter cavity is respectively communicated with the first water inlet and the first water outlet; the water inlet end of the second filter cavity is communicated with the second water inlet, and the water outlet end of the second filter cavity is communicated with the water inlet end of the third filter cavity; the concentrated water outlet is communicated with a concentrated water discharge port, and the purified water outlet is communicated with a purified water discharge port. Composite filter core, through rationally setting up a plurality of filtration cavities in a filter core, set up multiple filtering material in each cavity, realized the multilevel of single filter core and filtered, when guaranteeing the filter effect for the structure is more compact.

Description

Composite filter element

Technical Field

The utility model relates to a technical field of filter core equipment especially relates to a composite filter core.

Background

With the technological progress, people pay more attention to the problem of improving the quality of life, drinking water is an indispensable important part for human survival, and tap water contains a lot of harmful substances, such as soluble heavy metal ions, rust, excessive residual chlorine, bacteria and viruses. With the pursuit of people for healthy life and the higher and higher requirement of water quality and the maturity of domestic household water purification technology, how to filter impurities in water and improve the purity of drinking water becomes a problem of more attention and more important research of people, so people filter various impurities harmful to human bodies in water through various filter materials, thereby ensuring the safety of drinking water.

At present, people often use various filter materials to manufacture water filter equipment, the structure of common water filter equipment roughly comprises rough filtration, activated carbon adsorption, ion exchange resin, hollow fibers and the like, the common filter materials mainly comprise PP filter materials, activated carbon filter materials, scale inhibitors, RO membranes and the like, common household water purifiers are generally provided with 3-5 filter elements, wherein the PP cotton filter element is generally adopted for primary filtration; the fine filtration usually adopts an activated carbon filter element, can remove the abnormal color and the peculiar smell in the water and improve the water taste, or adopts a plug-in ceramic filter element, can completely isolate bacteria outside the filter element, but the water can pass through and retain beneficial mineral substances and trace elements in the water, and also adopts a gold filter medium water purification filter element and the like.

The general multiple-stage filtration core of current domestic water purifier, and every filter core is relatively independent, generally adopts linker and pipeline to connect, and every filter core all adopts different filter core shells, therefore the structure is comparatively complicated, and takes place the seepage easily to because the installation is complicated, and the pipeline is external, and easy ageing brings a great deal of inconvenience for the use and the maintenance of device.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a composite filter element through rationally setting up a plurality of filtration cavities in a filter core, sets up multiple filtering material in each cavity, has realized the multilevel of single filter core and has filtered, when guaranteeing the filter effect for the structure is more compact.

The utility model provides a composite filter element, include: the filter comprises a cylindrical shell, wherein a first filter cavity, a second filter cavity and a third filter cavity are formed in the shell, a reverse osmosis membrane is arranged in the third filter cavity, a concentrated water outlet and a purified water outlet are formed in the third filter cavity, and a first water inlet, a second water inlet, a first water discharge port, a concentrated water discharge port and a purified water discharge port are formed in one end of the shell;

the water inlet end of the first filtering cavity is communicated with the first water inlet, and the water outlet end of the first filtering cavity is communicated with the first water outlet; the water inlet end of the second filtering cavity is communicated with the second water inlet, and the water outlet end of the second filtering cavity is communicated with the water inlet end of the third filtering cavity; the concentrated water outlet is communicated with the concentrated water discharge port, and the purified water outlet is communicated with the purified water discharge port.

Further, a fourth filter chamber is formed in the shell, the fourth filter chamber is located in the shell and close to the water purification water outlet, the fourth filter chamber is arranged between the water purification outlet and the water purification water outlet, and activated carbon is arranged in the fourth filter chamber.

Furthermore, the third filter chamber is vertically arranged below the fourth filter chamber, the third filter chamber and the fourth filter chamber are cylindrical, the purified water outlet is communicated with the water inlet of the fourth filter chamber, and the concentrated water outlet is communicated with the concentrated water discharge port through a concentrated water discharge channel outside the fourth filter chamber.

Further, the first filter cavity is annular and is positioned on the outer side of the fourth filter cavity, and the concentrated water drainage channel is formed between the first filter cavity and the fourth filter cavity.

Further, be provided with the PP filter material in the first filter chamber, PP filter material inboard is provided with first filter, first filter is the annular, a plurality of filtration pores have been seted up on the first filter.

Further, the second filter cavity is positioned outside the third filter cavity, a first flow guide gap is formed between the outer side wall of the first filter cavity and the inner side wall of the shell, and the first flow guide gap is communicated with the second water inlet and the second filter cavity;

the second filter cavity is internally provided with a pre-filtering material, the pre-filtering material and the inner side wall of the second filter cavity form a second flow guide gap, and the second flow guide gap is communicated with the water inlet at the bottom of the third filter cavity.

Further, the prefiltering material with be provided with the second filter between the second water conservancy diversion clearance, the second filter is cylindricly, a plurality of filtration pores have been seted up on the second filter.

Furthermore, a third filter plate is arranged at the bottom of the second filter cavity, a plurality of flow guide holes are formed in the third filter plate, a flow guide channel is formed below the third filter plate, and the flow guide channel is communicated with the second flow guide gap and the third filter cavity.

Further, the flow guide channel is provided with a scale inhibitor, and the scale inhibitor is used for releasing anti-scaling ions.

Further, a third flow guide gap is formed between the bottom end of the reverse osmosis membrane and the inner side wall of the shell, and the flow guide channel is communicated with the reverse osmosis membrane through the third flow guide gap.

The utility model provides a pair of composite filter element is through injecing four filtration cavities in the shell to set up filtration structures such as active carbon, PP filter material and reverse osmosis membrane in each filtration cavity, realized filtering the multilevel of water in a filter core, when guaranteeing the filter effect, make the structure more compact.

For better understanding and implementation, the technical solutions of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

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

fig. 2 is a schematic cross-sectional view of a composite filter element according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional water path view of a composite filter element according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first water guide element of a composite filter element according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second water guide element of the composite filter element according to an embodiment of the present invention;

fig. 6 is a schematic view of a first filter plate of a composite filter element according to an embodiment of the present invention;

fig. 7 is a schematic view of a second filter plate of a composite filter element according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a composite filter element support plate according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a third filter plate of a composite filter element according to an embodiment of the present invention.

In the figure, 1, a housing; 101. a first water inlet; 102. a first drain port; 103. a second water inlet; 104. a concentrated water outlet; 105. a purified water outlet; 2. a first filter chamber; 201. a PP filter material; 202. a first water guiding element; 203. a second water guiding element; 204. a first filter plate; 3. a second filter chamber; 301. pre-filtering the material; 302. a second filter plate; 303. a support plate; 304. a third filter plate; 3041. a flow guide hole; 305. a scale inhibitor; 306. a first flow guide gap; 307. a second flow guide gap; 308. a flow guide channel; 4. a third filter chamber; 401. a reverse osmosis membrane; 402. a purified water outlet; 403. a concentrated water outlet; 404. a flow guide pipe; 405. a concentrate drainage channel; 406. a third flow guide gap; 5. a fourth filter chamber; 501. activated carbon; 502. a support member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present invention are shown in the drawings.

In the description of the present invention, it is to be understood that the terms "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 device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In the following, several specific embodiments are given for describing the technical solution of the present application in detail. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Please refer to fig. 1, which is a schematic cross-sectional view of a composite filter element according to an embodiment of the present invention, the composite filter element according to the embodiment includes a housing 1, a first filter chamber 2, a second filter chamber 3 and a third filter chamber 4, the housing 1 is preferably a cylindrical structure, an upper port of the housing 1 is provided with a first water inlet 101, a second water inlet 103, a first water outlet 102, a concentrated water outlet 104 and a purified water outlet 105, a lower end of the housing 1 is provided with a sealing cover, the sealing cover seals the lower end of the housing 1, the first filter chamber 2, the second filter chamber 3 and the third filter chamber 4 are all disposed inside the housing 1, the first filter chamber 2 is located below the first water inlet 101 and the second water inlet 103, and the second filter chamber 3 and the third filter chamber 4 are located below the first filter chamber 2. In other examples, the structure of the housing 1 can be adjusted as required, and the positions of the water inlet, the water outlet and the respective filter chambers can be arranged at other positions in the housing 1 as required.

As shown in fig. 2, 3, 4 and 5, in one embodiment, the first filter chamber 2 is in a ring structure, and is disposed above the inside of the housing 1, the top opening of the first filter chamber is smaller than the bottom opening of the first filter chamber, the first water guide element 202 and the second water guide element 203 are disposed in the first filter chamber 2, preferably, the first water guide element 202 and the second water guide element 203 are in a ring structure with a smaller top opening in accordance with the shape of the first filter chamber 2, and the first water guide element 202 and the second water guide element 203 are in a mutually-matched stepped structure, the first water guide element 202 is disposed between the inner wall of the first filter chamber 2 and the second water guide element 203, and since the length of the second water guide element 203 is longer than the depth of the first filter chamber 2 and closes the bottom of the first filter chamber 2, preferably, a PP filter material 201 is disposed in the first filter chamber 2.

In the above embodiment, when raw water flows in from the first water inlet 101, the raw water flows into the first filter chamber 2 from the gap between the outer shell of the first filter chamber 2 and the upper surface of the first water guide element 202, reaches the left side of the PP filter material 201, is filtered by the PP filter material 201, and then flows out from the right side of the PP filter material 201, and then the water flows to the first water outlet 102 along the gap between the lower surface of the first water guide element 202 and the upper surface of the second water guide element 203, and flows out through the first water outlet 102.

Preferably, as shown in fig. 6, a first filter plate 204 is disposed inside the PP filter material 201, the first filter plate 204 is in a circular ring structure, a plurality of filter holes are disposed on the first filter plate 204, and the first filter plate 204 is used for limiting the position of the PP filter material 201 and guiding out filtered water through the filter holes.

As shown in fig. 1, 2 and 3, in one embodiment, a fourth filter chamber 5 is disposed inside the first filter chamber 2, the fourth filter chamber 5 is preferably of a cylindrical structure, a water inlet and a water outlet are disposed at the upper and lower ends of the fourth filter chamber 5, the water inlet is communicated with the purified water outlet 105, the water outlet is communicated with the top end of the reverse osmosis membrane 401, and the purified water filtered by the reverse osmosis membrane 401 flows into the fourth filter chamber 5 through the water outlet.

Preferably, activated carbon 501 is arranged in the fourth filter cavity 5, the activated carbon 501 is arranged in the fourth filter cavity 5 in a circular ring shape, a flow guide channel is formed in the middle of the activated carbon 501, and a support element 502 is arranged below the activated carbon 501 and used for limiting the position of the activated carbon 501.

Preferably, a flow guiding gap is formed between the lower side wall of the supporting element 502 and the outer shell of the fourth filtering chamber 5, when the purified water flows into the fourth filtering chamber 5 from the third filtering chamber 4, the purified water flows to both sides of the activated carbon 501 along the flow guiding gap, and the purified water is filtered by the activated carbon 501, enters the flow guiding channel, and flows out from the purified water outlet 105.

As shown in fig. 2 and 3, in one embodiment, the third filter chamber 4 is located below the fourth filter chamber 5, the reverse osmosis membrane 401 is vertically disposed in the third filter chamber 4, the reverse osmosis membrane 401 is cylindrical and has openings at upper and lower ends, a flow guide pipe 404 is disposed inside the reverse osmosis membrane 401, a purified water outlet 402 is formed at a top end of the flow guide pipe 404, a concentrated water outlet 403 is formed at a top end of the reverse osmosis membrane, the concentrated water outlet 403 is located outside the purified water outlet 402, a water inlet at a bottom end of the fourth filter chamber 5 is inserted into the purified water outlet 402, so that the flow guide pipe 404 is communicated with the fourth filter chamber 5, a plurality of filter holes are formed in the flow guide pipe 404, purified water filtered by the reverse osmosis membrane 401 flows into the flow guide pipe 404 through the filter holes, a concentrated water outlet 403 is formed at a top end of the reverse osmosis membrane 401, and the concentrated water outlet 403 is located outside the purified water outlet 402.

Preferably, a concentrate drainage channel 405 is formed between the outer shell of the fourth filter chamber 5 and the inner side wall of the second water guide member 203, and the concentrate flows out from the concentrate outlet 403 and then flows to the concentrate drainage port 104 through the concentrate drainage channel 405.

Preferably, a third flow guiding gap 406 is formed between the bottom of the reverse osmosis membrane 401 and the upper side wall of the sealing cover, and the water to be filtered flows into the reverse osmosis membrane 401 through the third flow guiding gap 406 for filtering.

As shown in fig. 2, 3 and 7, in one embodiment, the second filter chamber 3 is located outside the third filter chamber 4, the prefilter material 301 is vertically disposed in the second filter chamber 3, the prefilter material 301 is in a ring structure matching with the shape of the housing 1, a first flow guiding gap 306 is formed between the outer shell of the first filter chamber 2 and the inner side wall of the housing 1, the first flow guiding gap 306 communicates the second water inlet 103 and the top of the second filter chamber 3, preferably, a second filter plate 302 is disposed inside the prefilter material 301, the second filter plate 302 is in a ring shape matching with the prefilter material 301, a plurality of filter holes are disposed on the second filter plate 302, a second flow guiding gap 307 is formed between the second filter plate 302 and the outer surface of the reverse osmosis membrane 401, and water filtered by the prefilter material 301 flows downward through the second flow guiding gap 307.

As shown in fig. 2, 3, 8 and 9, a support plate 303 is disposed at the bottom of the second filter chamber 3, the support plate 303 is circular, the support plate 303 is used for limiting the longitudinal position of the prefilter material 301, a third filter plate 304 is disposed below the support plate 303, the third filter plate 304 is circular, and a plurality of flow guide holes 3041 are disposed on the third filter plate 304, preferably, a scale inhibitor 305 is disposed in each flow guide hole 3041, and the scale inhibitor 305 releases anti-scaling ions, so as to prevent scaling in the reverse osmosis membrane 401.

Preferably, a flow guide channel 308 is formed below the third filter plate 304, and the flow guide channel 308 communicates with the third flow guide gap 406, so that water flowing out of the second filter chamber 3 flows into the reverse osmosis membrane 401 through the flow guide channel 308 and the third flow guide gap 406.

Preferably, a water pump is arranged outside the filter element and is communicated with the first water outlet 102 and the second water inlet 103, and a water inlet electromagnetic valve is arranged on the water pump and is used for controlling water flow.

When the filter element in this embodiment starts to operate, as shown in fig. 3, raw water flows into the first filter chamber 2 from the first water inlet 101, flows out from the first water outlet 102 after being filtered by the PP filter material 201, the PP filter material 201 isolates large-particle impurities such as sand, iron rust and the like in water, protects the water inlet solenoid valve and the water pump, the water pump pumps water flowing out from the first water outlet 102 into the second water inlet 103, the water to be filtered flows into the second filter chamber 3 through the first flow guide gap 306, the prefilter material 301 filters residual chlorine and organic matters in water to protect the reverse osmosis membrane 401 from biological pollution, the filtered water flows into the third filter plate 304 through the second flow guide gap 307, flows into the flow guide channel 308 through the scale inhibitor 305 on the third filter plate 304, and then the water in the flow guide channel 308 flows into the reverse osmosis membrane 401 through the third flow guide gap 406, and is filtered by the reverse osmosis membrane 401, the concentrated water flows out from a concentrated water outlet 403 at the top end of the reverse osmosis membrane 401, flows out from a concentrated water discharge port 104 after passing through a concentrated water discharge channel 405, flows into a guide pipe 404 through the purified water filtered by the reverse osmosis membrane 401, flows into the fourth filter chamber 5 through a purified water outlet 402, flows out through a purified water discharge port 105 after being filtered by activated carbon 501 in the fourth filter chamber 5, and the activated carbon 501 is used for improving the taste of the purified water.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. A composite filter element, comprising:

the filter comprises a cylindrical shell, wherein a first filter cavity, a second filter cavity and a third filter cavity are formed in the shell, a reverse osmosis membrane is arranged in the third filter cavity, a concentrated water outlet and a purified water outlet are formed in the third filter cavity, and a first water inlet, a second water inlet, a first water discharge port, a concentrated water discharge port and a purified water discharge port are formed in one end of the shell;

2. The composite filter element of claim 1, wherein:

still be formed with the fourth filter chamber in the shell, the fourth filter chamber is located be close to in the shell water purification drain outlet department, the fourth filter chamber set up in water purification export with between the water purification drain outlet, be provided with active carbon in the fourth filter chamber.

3. The composite filter element of claim 2, wherein:

the third filter cavity is vertically arranged below the fourth filter cavity, the third filter cavity and the fourth filter cavity are cylindrical, the purified water outlet is communicated with the water inlet of the fourth filter cavity, and the concentrated water outlet is communicated with the concentrated water discharge port through a concentrated water discharge channel on the outer side of the fourth filter cavity.

4. The composite filter element of claim 3, wherein:

the first filter cavity is annular and is positioned on the outer side of the fourth filter cavity, and the concentrated water drainage channel is formed between the first filter cavity and the fourth filter cavity.

5. The composite filter element of claim 4, wherein:

the filter is characterized in that a PP filter material is arranged in the first filter cavity, a first filter plate is arranged on the inner side of the PP filter material, the first filter plate is annular, and a plurality of filter holes are formed in the first filter plate.

6. The composite filter element of claim 3, wherein:

the second filter cavity is positioned at the outer side of the third filter cavity, a first flow guide gap is formed between the outer side wall of the first filter cavity and the inner side wall of the shell, and the first flow guide gap is communicated with the second water inlet and the second filter cavity;

7. The composite filter element of claim 6, wherein:

the prefiltration material with be provided with the second filter between the second water conservancy diversion clearance, the second filter is cylindricly, a plurality of filtration pores of crossing have been seted up on the second filter.

8. The composite filter element of claim 7, wherein:

the bottom of the second filter cavity is provided with a third filter plate, the third filter plate is provided with a plurality of flow guide holes, a flow guide channel is formed below the third filter plate, and the flow guide channel is communicated with the second flow guide gap and the third filter cavity.

9. The composite filter element of claim 8, wherein:

and the flow guide channel is provided with a scale inhibitor, and the scale inhibitor is used for releasing anti-scaling ions.

10. The composite filter element of claim 8, wherein:

and a third diversion gap is formed between the bottom end of the reverse osmosis membrane and the inner side wall of the shell, and the diversion channel is communicated with the reverse osmosis membrane through the third diversion gap.