CN218290534U

CN218290534U - Filter element structure

Info

Publication number: CN218290534U
Application number: CN202221605141.2U
Authority: CN
Inventors: 王行飞; 刘红星
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2023-01-13
Anticipated expiration: 2032-06-20

Abstract

The utility model relates to a filter core structure, in this filter core structure, the inside appearance chamber that has of shell, water inlet channel has been seted up on the shell, water purification passageway and waste water channel, the inside of inner shell has former water cavity and the water purification chamber that is linked together with the water purification passageway, the center tube is located former water cavity at least locally, set up the elastic component between many water purification membrane silks in former water cavity, through the water pressure of inputing to former water cavity in different water phases, the elastic component just can take place shrink deformation or outside expansion under different hydraulic effects and reset, in-process synchronization action on many water purification membrane silks of contracting one, make the whole swing that takes place of many water purification membrane silks, the dirt that has between the water purification membrane silk like this just can be in the free state, and be taken from the filter core by waste water direct at the stage of washing, avoid the dirt enrichment.

Description

Filter element structure

Technical Field

The utility model belongs to the water purification field, concretely relates to filter core structure.

Background

At present, water purifiers become common equipment for household life, various water purifiers appear on the market, and one of the key core structures of the water purifiers is a filter element with a water purifying film. The filter element comprises a filter shell, a hollow fiber membrane wire and a central tube, wherein the hollow fiber membrane wire and the central tube are arranged in the filter shell, the filter shell is provided with a water inlet port, a purified water outlet and a waste water port, and the hollow fiber membrane wire is arranged around the central tube. For example, a Chinese utility model patent, hollow fiber membrane core, whose patent number is ZL202120043465.0 (publication number is CN 215506365U), discloses a hollow fiber membrane, whose membrane core comprises a filter shell, hollow fiber membrane filaments and a central tube, which are arranged in the filter shell, wherein the central tube is provided with an axial water inlet and a radial first water outlet; the middle of the hollow fiber membrane wire is provided with a sleeve to divide the hollow fiber membrane wire into an inner membrane wire and an outer membrane wire, the central pipe is positioned at the inner ring of the sleeve and forms an inner water cavity with the inner wall of the sleeve, the sleeve and the inner wall of the filter shell form an outer water cavity, the inner membrane wire is positioned in the inner water cavity, and the outer membrane wire is positioned in the outer water cavity; a second water outlet hole is formed in one end, far away from the waste water port, of the sleeve.

The hollow fiber membrane realizes water filtration through the membrane core, but after the hollow fiber membrane is used for a period of time, the surface of the membrane is blocked, and the water outlet flow is reduced, so that the conventional filter core structure needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the current situation of above-mentioned prior art, a avoid filter core structure of dense water enrichment is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a filter cartridge assembly comprising:

the shell is internally provided with a cavity, and a water inlet channel, a water purification channel and a wastewater channel are arranged on the cavity;

the inner shell is arranged in the containing cavity of the outer shell, a wastewater cavity communicated with the wastewater channel is formed between the inner shell and the outer shell, and the wastewater cavity and the purified water cavity are both positioned at the downstream of the raw water cavity along the flowing direction of fluid;

the central pipe is communicated with the water inlet channel, at least partially positioned in the raw water cavity, and the side wall of the central pipe is provided with a water through hole communicated with the raw water cavity;

the water purification membrane filaments are at least partially arranged in the raw water cavity and are arranged on the peripheral side of the central tube, and the raw water cavity is communicated with the water purification cavity through the water purification membrane filaments;

the elastic piece is arranged in the raw water cavity and in the gaps among the water purification membrane filaments, the inner part of the elastic piece is hollow to form a cavity, and the elastic piece can deform along with the increase or decrease of water pressure so as to correspondingly contract inwards to reduce the volume of the cavity or expand outwards to increase the volume of the cavity, thus acting on each water purification membrane filament and enabling the water purification membrane filaments to swing integrally.

In order to ensure that the elastic deformation of the elastic member affects a sufficient length of the water purification membrane filaments, it is preferable that the elastic member is arranged along the length direction of the central tube.

In order to facilitate the discharge of the waste water, preferably, the bottom wall of the inner shell is provided with a drain hole communicated with the waste water cavity.

The filter element can be different specific structural forms, preferably, the shell comprises a shell and a seat body connected with the shell, and the water inlet channel, the water purification channel and the waste water channel are all arranged in the seat body.

Specifically, the inner shell with the pedestal is connected, and this inner shell is installed the intercommunication the connecting pipe of inhalant canal and center tube.

In order to ensure uniform water guiding, the water through holes are multiple and are arranged at intervals along the circumferential direction of the central pipe.

Preferably, the equal vertical arrangement of center tube, inner shell and shell, the inner shell is including first shell, second shell and connecting plate, first shell and second shell top-down interval arrangement, the connecting plate is including being annular ring plate and transverse arrangement's baffle, the top edge of annular ring plate with end along respectively with first shell and second shell are connected, and with first shell and second shell enclose to close and form the cavity, the baffle is located in the cavity, and divide into this cavity water purification chamber and former water cavity.

Compared with the prior art, the utility model has the advantages of: in this filter core structure, set up the elastic component between the many water purification membrane silks in former water cavity, through the water pressure of inputing in former water cavity in different water use stages, the elastic component just can take place to contract deformation or outside expansion under different hydraulic effect and reset, in-process synchronization action that contracts one on many water purification membrane silks, impel many water purification membrane silks whole the emergence swing, the dirt that has between the water purification membrane silk like this just can be in the free state, and is being washed the stage and directly taken away from the filter core by waste water, avoid the dirt enrichment.

Drawings

Fig. 1 is an overall schematic view of a filter element structure in an embodiment of the present invention;

fig. 2 is a schematic overall sectional view (first direction) of a filter element structure according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view (second direction) of the filter element structure according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 3, the filter element structure according to a preferred embodiment of the present invention includes an outer casing 1, an inner casing 2, a central tube 21 and an elastic member 3. The housing 1 has a cavity 10 therein, and a water inlet passage 101, a water purification passage 102 and a waste water passage 103 are formed thereon. Specifically, the housing 1 includes a housing 11 and a base 12 connected to the housing 11, and the water inlet passage 101, the water purifying passage 102 and the waste water passage 103 are all disposed in the base 12. The inner shell 2 is provided with a raw water cavity 201 and a purified water cavity 202 communicated with the purified water channel 102, the inner shell 2 is arranged in the containing cavity 10 of the outer shell 1, a waste water cavity 03 communicated with the waste water channel 103 is formed between the inner shell 2 and the outer shell 1, the waste water cavity 03 and the purified water cavity 202 are both positioned at the downstream of the raw water cavity 201 along the flow direction of fluid, the central tube 21 is communicated with the water inlet channel 101 and is at least partially positioned in the raw water cavity 201, and the side wall of the central tube is provided with a plurality of water through holes communicated with the raw water cavity 201, and the water through holes are arranged at intervals along the circumferential direction of the central tube 21. In addition, the central tube 21, the inner shell 2 and the outer shell 1 are all vertically arranged, the inner shell 2 includes a first shell 23, a second shell 24 and a connecting plate 25, the first shell 23 and the second shell 24 are arranged from top to bottom at intervals, the connecting plate 25 includes an annular plate 251 and a transverse partition plate 252, the top edge and the bottom edge of the annular plate 251 are respectively connected with the first shell 23 and the second shell 24 and enclose the first shell 23 and the second shell 24 to form a chamber 20, and the partition plate 252 is located in the chamber 20 and divides the chamber 20 into a purified water chamber 202 and a raw water chamber 201.

The inner casing 2 in this embodiment is connected to the base 12, and the inner casing 2 is provided with a connecting pipe 4 for connecting the water inlet passage 101 and the central pipe 21, and the bottom wall of the inner casing 2 is provided with a drain hole 200 communicated with the waste water chamber 03.

In this embodiment, a plurality of water purification membrane filaments 22 are disposed in the raw water chamber 201, the water purification membrane filaments 22 are all disposed on the peripheral side of the central tube 21, the raw water chamber 201 is in fluid communication with the purified water chamber 202 through the water purification membrane filaments 22, that is, under the pumping action of the booster pump, the water pressure of the raw water in the raw water chamber 201 increases, the raw water under the action of the pressure radially enters the internal flow channel of the water purification membrane filaments 22 along the water purification membrane filaments 22 to complete filtration, and then is continuously output through the flow channel, and the purified water output by each water purification membrane filament 22 is collected into the purified water chamber 102.

The elastic member 3 in this embodiment is used to swing the plurality of membrane filaments as a whole, so that the dirt accumulated between the water purification membrane filaments 22 can be in a free state, and thus washed away together with the wastewater at the time of re-washing. The elastic member 3 is arranged in the raw water cavity 201 and arranged in the gap between the plurality of water purification membrane filaments 22, the inner part of the elastic member is hollow to form a cavity 30, and the elastic member 3 can deform along with the increase or decrease of the water pressure so as to correspondingly contract inwards to reduce the volume of the cavity 30 or expand outwards to increase the volume of the cavity 30, thereby acting on each water purification membrane filament 22 to enable the plurality of water purification membrane filaments 22 to swing integrally. Specifically, the elastic member 3 in the present embodiment is arranged along the length direction of the center tube 21.

In the water purification process and the flushing process, the water purification channel 102 and the waste water channel 103 are alternatively in a communicated state. When water is purified, the wastewater channel 103 is closed, water flow can only be discharged from the water purification channel 102 under the pressure action of the booster pump, so that the raw water in the water inlet channel 101 enters the raw water cavity 201 through the water through hole, the water flow is filtered through the water purification membrane filaments 22 under the water pressure action, meanwhile, the water enters the internal flow channels of the membrane filaments due to the need of overcoming the surface tension of the membrane filaments, the pressure in front of the water purification membrane filaments 22 is increased, so that the elastic members 3 outside the membrane filaments can also be contracted for energy storage under the influence of the water pressure, and then the purified water generated by the water purification membrane filaments 22 is guided into the water purification cavity 202 and finally is output through the water purification channel 102; during flushing, the water purification channel 102 is closed, water flow can only be discharged from the wastewater channel 103, raw water in the water inlet channel 101 enters the raw water cavity 201 through the water through holes, and the water purification action is not required to be executed in this stage, so that the external pressure of the water purification membrane wires 22 is reduced relative to water purification time, the elastic member 3 is not pressed any more, and therefore the water purification membrane wires can be expanded and reset, self energy storage is released, the elastic member 3 can swing integrally in the process of shrinking one by one, dirt and wastewater outside the water purification membrane wires 22 are discharged together, dirt accumulation is avoided, and therefore in the whole wastewater discharge process, the dirt between the water purification membrane wires 22 can be flushed to the greatest extent by the elastic member 3. The elastic member 3 may be made of various materials, such as food-grade silicone material.

Directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the present invention, but these terms are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter, referred to as a first portion and a second portion) that fluid (gas, liquid or a mixture thereof) can flow along a flow path from the first portion or/and be transported to the second portion, and may be the first portion and the second portion directly connected to each other or indirectly connected to each other through at least one third member, such as a fluid passage, e.g., a pipe, a channel, a duct, a flow guide member, a hole, a groove, or a chamber allowing fluid to flow therethrough, or a combination thereof.

Claims

1. A filter cartridge assembly comprising:

the water purifier comprises a shell (1), wherein a cavity (10) is formed in the shell, and a water inlet channel (101), a water purification channel (102) and a wastewater channel (103) are formed in the shell;

the inner shell (2) is internally provided with a raw water cavity (201) and a purified water cavity (202) communicated with the purified water channel (102), the inner shell (2) is arranged in the containing cavity (10) of the outer shell (1), a wastewater cavity (03) communicated with the wastewater channel (103) is formed between the inner shell and the outer shell (1), and the wastewater cavity (03) and the purified water cavity (202) are both positioned at the downstream of the raw water cavity (201) along the fluid flowing direction;

the central pipe (21) is communicated with the water inlet channel (101), is at least partially positioned in the raw water cavity (201), and is provided with a water through hole communicated with the raw water cavity (201) on the side wall;

the water purification membrane filaments (22) are at least partially arranged in the raw water cavity (201) and are arranged on the peripheral side of the central tube (21), and the raw water cavity (201) is in fluid communication with the water purification cavity (202) through the water purification membrane filaments (22);

it is characterized by also comprising:

the elastic piece (3) is arranged in the raw water cavity (201) and arranged in gaps among the water purification membrane filaments (22), a cavity (30) is formed in the elastic piece in a hollow mode, the elastic piece (3) can deform along with the increase or decrease of water pressure, correspondingly shrinks inwards to reduce the volume of the cavity (30) or expands outwards to increase the volume of the cavity (30), and therefore the elastic piece acts on each water purification membrane filament (22), and the water purification membrane filaments (22) can integrally swing.

2. A filter cartridge arrangement as recited in claim 1, wherein: the elastic member (3) is arranged along the length direction of the center tube (21).

3. A filter cartridge arrangement as recited in claim 1, wherein: the bottom wall of the inner shell (2) is provided with a drain hole (200) communicated with the waste water cavity (03).

4. A filter cartridge arrangement as recited in claim 1, wherein: the shell (1) comprises a shell (11) and a seat body (12) connected with the shell (11), and the water inlet channel (101), the water purification channel (102) and the waste water channel (103) are all arranged in the seat body (12).

5. A filter cartridge arrangement as recited in claim 4, wherein: the inner shell (2) is connected with the base body (12), and the inner shell (2) is provided with a connecting pipe (4) which is communicated with the water inlet channel (101) and the central pipe (21).

6. A filter cartridge arrangement as recited in claim 1, wherein: the water through holes are multiple and are arranged at intervals along the circumferential direction of the central pipe (21).

7. A filter cartridge arrangement according to any one of claims 1 to 6, wherein: the water purifying device is characterized in that the central tube (21), the inner shell (2) and the outer shell (1) are vertically arranged, the inner shell (2) comprises a first shell (23), a second shell (24) and a connecting plate (25), the first shell (23) and the second shell (24) are arranged from top to bottom at intervals, the connecting plate (25) comprises an annular plate (251) and a transverse partition plate (252), the top edge and the bottom edge of the annular plate (251) are respectively connected with the first shell (23) and the second shell (24), the first shell (23) and the second shell (24) are enclosed to form a cavity (20), and the partition plate (252) is located in the cavity (20) and divides the cavity (20) into the water purifying cavity (202) and the raw water cavity (201).