CN212476341U

CN212476341U - Composite filter element and water purifier

Info

Publication number: CN212476341U
Application number: CN202021791185.XU
Authority: CN
Inventors: 罗安泺
Original assignee: Foshan Micro Midea Filter Manufacturing Co Ltd
Current assignee: Foshan Micro Midea Filter Manufacturing Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-02-05
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a composite filter element and a water purifier, wherein, the composite filter element comprises a shell component and a penetration filter component; the shell component is provided with a mounting cavity; the osmotic filtering component is arranged in the mounting cavity and comprises a first water purifying piece, a second water purifying piece, a first end cover component and a second end cover component, and the first end cover component is provided with a first accommodating cavity for accommodating the first water purifying piece so as to form a first filtering area; the first end cover assembly is concavely provided with a mounting groove communicated with the first accommodating cavity, and the second end cover assembly is arranged in the mounting groove and is provided with a second accommodating cavity for accommodating a second water purifying piece so as to form a second filtering area. The utility model discloses improve the structure of filter core, when having improved composite filter element's water purification effect, also promoted space utilization, reduced whole volume.

Description

Composite filter element and water purifier

Technical Field

The utility model relates to a filter core technical field especially relates to a composite filter element and water purifier.

Background

Reverse Osmosis (RO) is an artificial semipermeable membrane with certain characteristics and made by simulating a biological semipermeable membrane, and is a core component of Reverse Osmosis technology. The principle of reverse osmosis is that under the action of the osmotic pressure higher than that of the solution, other substances are separated from water based on the fact that the substances cannot permeate a semipermeable membrane. The reverse osmosis membrane has a very small membrane pore size, and thus can effectively remove dissolved salts, colloids, microorganisms, organic substances, and the like in water. The reverse osmosis water purification system has the advantages of good water quality, low energy consumption, no pollution, simple process, simple and convenient operation and the like.

Reverse osmosis membrane uses comparatively extensively in composite filter element, and two kinds of water purification filter cores of carbon-point and Poly Aluminium Chloride (PAC) of the infiltration filtering component of current composite filter element, the carbon-point separates unreasonablely with Poly aluminium Chloride, and whole space occupies greatly, and the space utilization of filter core is lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a composite filter element aims at improving composite filter element's space utilization to reduce whole volume.

In order to achieve the above object, the utility model provides a composite filter element, composite filter element includes:

a housing assembly formed with a mounting cavity; and

the osmotic filtering component is arranged in the mounting cavity and comprises a first water purifying piece, a second water purifying piece, a first end cover component and a second end cover component, wherein the first end cover component is provided with a first accommodating cavity for accommodating the first water purifying piece so as to form a first filtering area; the first end cover assembly is concavely provided with a mounting groove communicated with the first accommodating cavity, and the second end cover assembly is arranged in the mounting groove and is provided with a second accommodating cavity for accommodating the second water purifying piece so as to form a second filtering area.

In one embodiment, the housing assembly includes a filter bottle body and a filter bottle cap covering the filter bottle body, the filter bottle cap is provided with a raw water inlet, a concentrated water outlet and a pure water outlet, the raw water inlet is communicated with the first filtering area, the concentrated water outlet is communicated with the first filtering area, and the pure water outlet is communicated with the second filtering area.

In one embodiment, the first water purifying member includes a central tube and a filter membrane element wound around the central tube, the filter membrane element forms the first filtering area, and the central tube extends from the first filtering area of the first end cover assembly into the second filtering area through the bottom wall of the second end cover assembly and is communicated with the pure water outlet through the second water purifying member.

In one embodiment, the filtering membrane element comprises a nanofiltration membrane, a reverse osmosis membrane and a waterproof membrane, wherein the nanofiltration membrane and the reverse osmosis membrane are respectively wound on the outer walls of two opposite sides of the central tube and are separated by the waterproof membrane;

the waterproof membrane is used for separating the reverse osmosis membrane and the nanofiltration membrane so as to prevent nanofiltration water filtered by the nanofiltration membrane from entering the reverse osmosis membrane and prevent filtered water filtered by the reverse osmosis membrane from entering the nanofiltration membrane.

In an embodiment, the central tube includes a first half pipe and a second half pipe connected and fixed with the first half pipe, the nanofiltration membrane is disposed on the first half pipe, the reverse osmosis membrane is disposed on the second half pipe, and the waterproof membrane is disposed between the nanofiltration membrane and the reverse osmosis membrane to separate the nanofiltration water passing through the nanofiltration membrane and the filtered water passing through the reverse osmosis membrane.

In one embodiment, the first water purifying member is a polyaluminium chloride filter element; the filter membrane element also comprises a polypropylene outer layer and a polyaluminium chloride middle layer;

the nanofiltration membrane/the reverse osmosis membrane, the polyaluminium chloride middle layer and the polypropylene outer layer are sequentially wound on the central tube from inside to outside.

In one embodiment, the second water purifying member is a carbon rod filter element.

In one embodiment, the first water purifying piece and the first end cover assembly are bonded and sealed through hot melt adhesive; and the second water purifying piece is bonded and sealed with the second end cover assembly through hot melt adhesive.

In one embodiment, the filter bottle body is in sealing connection with the first end cover assembly through a first sealing element; the filter bottle body is connected with the second end cover assembly in a sealing mode through a second sealing piece; the first end cap assembly and the second end cap assembly are sealingly connected by a third seal.

In order to achieve the above object, the utility model also provides a water purifier, the water purifier includes as above composite filter element, composite filter element includes:

the composite filter element comprises:

a housing assembly formed with a mounting cavity; and

In the technical scheme of the utility model, because the composite filter element comprises a shell component and an infiltration filtering component, the shell component is provided with an installation cavity, the infiltration filtering component is installed in the installation cavity, the infiltration filtering component comprises a first water purifying piece, a second water purifying piece, a first end cover component and a second end cover component, and the first end cover component is provided with a first accommodating cavity for accommodating the first water purifying piece so as to form a first filtering area; the first end cover component is concavely provided with a mounting groove communicated with the first accommodating cavity, the second end cover component is arranged in the mounting groove and is provided with a second accommodating cavity for accommodating the second water purifying piece so as to form a second filtering area, the whole structure of the composite filter element is compact, the space utilization of the composite filter element is improved, and the whole volume is reduced.

Drawings

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

Fig. 1 is a schematic structural view of an embodiment of the composite filter element of the present invention;

fig. 2 is an exploded view of an embodiment of the composite filter element of the present invention;

fig. 3 is a cross-sectional view of an embodiment of the composite filter element of the present invention.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Reverse osmosis membrane uses comparatively extensively in composite filter element, and in an exemplary technique, composite filter element's infiltration filter component includes two kinds of water purification filter cores of carbon-point and Poly Aluminium Chloride (PAC), and the carbon-point is unreasonable with the separation of Poly aluminium Chloride, and whole space occupies greatly, and the space utilization of filter core is lower.

In order to improve the space utilization of the composite filter element and reduce the whole volume, the utility model provides a composite filter element which is applicable to various water purifying devices and is not limited in the place.

Referring to fig. 1 to 3, in an embodiment of the present invention, the composite filter element includes a housing assembly 100 and a permeation filtration assembly 200; the housing assembly 100 is formed with a mounting cavity; the osmotic filtering assembly 200 is installed in the installation cavity, the osmotic filtering assembly 200 includes a first water purifying member 210, a second water purifying member 220, a first end cap assembly 230 and a second end cap assembly 240, the first end cap assembly 230 forms a first accommodating cavity for accommodating the first water purifying member 210 to form a first filtering area 200 a; the first end cap assembly 230 is concavely provided with a mounting groove 230a communicated with the first receiving cavity, and the second end cap assembly 240 is disposed in the mounting groove 230a and is formed with a second receiving cavity for receiving the second water purifying member 220 to form a second filtering region 200 b.

In this embodiment, the housing assembly 100 of the composite filter element may include a filter bottle body 110 and a filter bottle cap 120 covering the filter bottle body 110, the filter bottle cap 120 is provided with a raw water inlet 100a, a concentrated water outlet 100b and a pure water outlet 100c, the raw water inlet 100a may be communicated with the first filtering area 200a, the concentrated water outlet 100b may be communicated with the first filtering area 200a and the second filtering area 200b, and the pure water outlet 100c may be communicated with the second filtering area 200 b. The filter cap 120 may be provided with a plurality of taps to form a raw water inlet 100a, a concentrated water outlet 100b, and a pure water outlet 100c, and the tap corresponding to the raw water inlet 100a may be provided with an electromagnetic valve, and may pump the raw water into the first filtering region 200a inside the composite filter element by providing a booster pump.

It should be noted that the first water purifying member 210 may be a filter element formed by water purifying materials such as polyaluminium chloride, polypropylene, polyaluminium ferric chloride, etc., and the second water purifying member 220 may be a filter element formed by activated carbon rod, etc., and here, specific materials of the first water purifying member 210 and the second water purifying member 220 are not limited.

The polyaluminium chloride filter element can effectively filter rust, silt and absorb heterochrosis, peculiar smell, residual chlorine and partial organic matters in tap water, and can ensure the water quality entering the filter element, thereby prolonging the service life of the filter element. The first water purifying member 210 may include a first filter element layer, a second filter element layer, and a third filter element layer, which are sequentially arranged from outside to inside, wherein the first filter element layer may be a polypropylene (PP) non-woven fabric winding layer, and the filtration precision of the polypropylene non-woven fabric winding layer may be 5 μm, so as to ensure the filtration effect; the second filter element layer can be a middle layer of polyaluminium chloride; the third filter element layer can be a nanofiltration membrane or a reverse osmosis membrane winding layer. In the practical application process, the thickness of the filter element layer can be set according to different water qualities in a regional combination mode, and therefore the requirement of a user on the quality of purified water can be better met. The reverse osmosis membrane filter element layer can be wound on the central tube 211 by adopting a multi-membrane rolling process and a polyaluminium chloride filter element layer and a polypropylene filter element layer.

The first end cap assembly 230 may be formed by combining a plurality of hollow cylindrical housings, a pipe diameter of the housing near the bottom of the filter bottle body 110 may be smaller than a pipe diameter of the housing far away from the bottom of the filter bottle body 110, the housing near the bottom of the filter bottle body 110 and the housing far away from the bottom of the filter bottle body 110 form the first receiving cavity therebetween for the first water purifying member 210 to be mounted, the housing located at the upper side may be connected to the filter cap 120 in a sealing manner, and the housing located at the upper side may be mounted to the second end cap assembly 240.

The second end cap assembly 240 may also be formed by combining a plurality of hollow cylindrical housings to form a second receiving cavity for the second water purifying member 220 to be mounted, a lower housing of the second end cap assembly 240 may be provided with a communication port to communicate with the first receiving cavity, and an upper housing of the second end cap assembly 240 may be connected to the filter bottle cap 120 in a sealing manner.

A raw water inlet channel can be formed between the outer wall of the lower housing of the second end cap assembly 240 and the inner wall of the upper housing of the first end cap assembly 230 and is communicated with the raw water inlet 100a, a concentrated water discharge channel can be formed between the inner wall of the second end cap assembly 240 and the outer wall of the second water purifying member 220 and is communicated with the concentrated water discharge port 100b, and a pure water outlet channel can be formed in the middle of the second water purifying member 220 and is communicated with the pure water outlet 100 c.

In this embodiment, preferably, referring mainly to fig. 3, the first end cap assembly 230 may include a first end cap 231 and a second end cap 232 covered in the first end cap 231, and the second end cap assembly 240 may include a third end cap 241 and a fourth end cap 242 covered on the third end cap 241, so as to facilitate assembly and improve space utilization of the composite filter element as much as possible.

It can be understood that, the present invention forms the housing assembly 100 of the composite filter element with a mounting cavity, the permeation filtration assembly 200 is mounted in the mounting cavity, the permeation filtration assembly 200 includes the first water purifying member 210, the second water purifying member 220, the first end cap assembly 230 and the second end cap assembly 240, the first end cap assembly 230 forms the first receiving cavity for receiving the first water purifying member 210, so as to form the first filtration region 200 a; the first end cover assembly 230 is concavely provided with a mounting groove 230a communicated with the first accommodating cavity, the second end cover assembly 240 is arranged in the mounting groove 230a and is formed with a second accommodating cavity for accommodating the second water purifying member 220 so as to form a second filtering area 200b, so that the overall structure of the composite filter element is compact, the space utilization filter of the composite filter element is improved, and the overall volume is reduced.

Referring mainly to fig. 2 and 3, in order to achieve better water purification effect and reduce the overall volume of the composite filter element as much as possible, in an embodiment, the first water purification member 210 includes a central pipe 211 and a filter membrane element 212 wound around the central pipe 211, the filter membrane element 212 forms a first filtering area 200a, and the central pipe 211 extends from the first filtering area 200a of the first end cap assembly 230 into the second filtering area 200b through the bottom wall of the second end cap assembly 240 and communicates with the pure water outlet 100c through the second water purification member 220.

In this embodiment, the filtering membrane element 212 may include a nano-filtering membrane, a reverse osmosis membrane and a waterproof membrane, wherein the nano-filtering membrane and the reverse osmosis membrane are respectively wound on the outer walls of two opposite sides of the central tube 211 and are separated by the waterproof membrane; the waterproof membrane is used to separate the reverse osmosis membrane and the nanofiltration membrane to prevent nanofiltration water filtered by the nanofiltration membrane from entering the reverse osmosis membrane and to prevent filtered water filtered by the reverse osmosis membrane from entering the nanofiltration membrane.

Further, center tube 211 can include first half pipe and half pipe of second fixed with first half union coupling, and the nanofiltration membrane is located on first half pipe, and reverse osmosis membrane is located on the half pipe of second, and the water-proof membrane is located between nanofiltration membrane and the reverse osmosis membrane to separate the filtration water that receives through receiving the filtration of filter membrane and the drainage water that passes through reverse osmosis membrane. So set up, greatly promoted this composite filter's water purification effect.

The first water purifying member 210 may be a polyaluminum chloride filter element; the filter membrane element 212 may also include an outer layer of polypropylene and a middle layer of polyaluminum chloride. The nanofiltration membrane/reverse osmosis membrane, the polyaluminium chloride middle layer and the polypropylene outer layer are sequentially wound on the central tube 211 from inside to outside.

It can be understood that, in this embodiment, the raw water enters the first filtering area 200a through the raw water inlet 100a, is filtered by the first water purifying member 210, then flows to the second filtering area 200b through the central tube 211, and is subjected to the second water purifying treatment by the second water purifying member 220 to obtain pure water, and the pure water flows out through the pure water outlet 100 c. Wherein the concentrated water generated from the first filtering section 200a and the second filtering section 200b is discharged through the concentrated water discharging port 100 b.

As shown in fig. 3, in order to avoid the mixing of raw water, concentrated water and pure water, which may affect the quality of filtered water, in an embodiment, the first water purifying member 210 and the first end cap assembly 230 may be adhesively sealed by a hot melt adhesive, and specifically, the pre-PAC filter cartridge may be sealingly connected with the first end cap 231 and the second end cap 232 by a hot melt adhesive, respectively; the second water purifying member 220 and the second end cap assembly 240 can be bonded and sealed by hot melt adhesive, and specifically, the carbon rod and the third end cap 241 and the fourth end cap 242 can be respectively connected in a sealing manner by hot melt adhesive.

Further, in some embodiments, the filter bottle body 110 and the first end cap assembly 230 may be sealingly connected by a first seal, and in particular, the filter bottle body 110 and the first and second end caps 231 and 232 may be sealingly connected by a first seal, respectively; the filter bottle body 110 and the second end cap assembly 240 can be hermetically connected by a second sealing member, and specifically, the filter bottle body 110 and the third end cap 241 and the fourth end cap 242 can be hermetically connected by a second sealing member; the first and second

end cap assemblies

230 and 240 may be sealingly connected by a third seal, and specifically, the second and fourth end caps 232 and 242 may be sealingly connected by a third seal.

The first sealing element, the second sealing element and the third sealing element can be O-shaped sealing rings, the materials of the first sealing element, the second sealing element and the third sealing element can be silica gel or rubber, and the sizes, the shapes and the materials of the first sealing element, the second sealing element and the third sealing element are not limited.

The utility model also provides a water purifier, this water purifier include composite filter element, and this composite filter element's concrete structure refers to above-mentioned embodiment, because the utility model provides a water purifier includes all schemes of above-mentioned composite filter element's all embodiments, consequently, have at least with the same technological effect of composite filter element, the explanation differs here.

Referring to fig. 1 and 3, in an embodiment of the present invention, the composite filter element of a water purifier includes a housing assembly 100 and a permeation filter assembly 200; the housing assembly 100 is formed with a mounting cavity; the osmotic filtering assembly 200 is installed in the installation cavity, the osmotic filtering assembly 200 includes a first water purifying member 210, a second water purifying member 220, a first end cap assembly 230 and a second end cap assembly 240, the first end cap assembly 230 forms a first accommodating cavity for accommodating the first water purifying member 210 to form a first filtering area 200 a; the first end cap assembly 230 is concavely provided with a mounting groove 230a communicated with the first receiving cavity, and the second end cap assembly 240 is disposed in the mounting groove 230a and is formed with a second receiving cavity for receiving the second water purifying member 220 to form a second filtering region 200 b.

The water purification system of the water purifier comprises a water inlet pipeline, a pure water pipeline and a concentrated water pipeline; the water inlet pipeline is communicated with a raw water inlet 100a of the composite filter element, the concentrated water pipeline is communicated with a concentrated water discharge port 100b of the composite filter element, and the pure water pipeline is communicated with a pure water outlet 100c of the composite filter element.

The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A composite filter element, comprising:

a housing assembly formed with a mounting cavity; and

2. The composite filter element of claim 1, wherein the housing assembly comprises a filter flask body and a filter flask cap covering the filter flask body, the filter flask cap having a raw water inlet, a concentrated water outlet and a pure water outlet, the raw water inlet communicating with the first filtration zone, the concentrated water outlet communicating with the first filtration zone, and the pure water outlet communicating with the second filtration zone.

3. The composite filter element as claimed in claim 2, wherein the first water purifying member comprises a central tube and a filter membrane element wound around the central tube, the filter membrane element forms the first filtering area, and the central tube extends from the first filtering area of the first end cover assembly into the second filtering area through the bottom wall of the second end cover assembly and is communicated with the pure water outlet through the second water purifying member.

4. The composite filter element according to claim 3, wherein the filter membrane element comprises a nanofiltration membrane, a reverse osmosis membrane and a waterproof membrane, and the nanofiltration membrane and the reverse osmosis membrane are respectively wound on the outer walls of two opposite sides of the central tube and are separated by the waterproof membrane;

5. The composite filter element of claim 4, wherein the central tube comprises a first half tube and a second half tube fixedly connected to the first half tube, the nanofiltration membrane is disposed on the first half tube, the reverse osmosis membrane is disposed on the second half tube, and the waterproof membrane is disposed between the nanofiltration membrane and the reverse osmosis membrane to separate nanofiltration water filtered by the nanofiltration membrane from filtration water filtered by the reverse osmosis membrane.

6. The composite filter element of claim 5, wherein the first water purifying member is a polyaluminum chloride filter element; the filter membrane element also comprises a polypropylene outer layer and a polyaluminium chloride middle layer;

7. The composite filter element of claim 1, wherein the second water purifying member is a carbon rod filter element.

8. The composite filter element of claim 1, wherein the first water purifying member is sealed to the first end cap assembly by hot melt adhesive bonding; and the second water purifying piece is bonded and sealed with the second end cover assembly through hot melt adhesive.

9. The composite filter element of claim 2, wherein the filter flask body is sealingly connected to the first end cap assembly by a first seal member; the filter bottle body is connected with the second end cover assembly in a sealing mode through a second sealing piece; the first end cap assembly and the second end cap assembly are sealingly connected by a third seal.

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