CN218909973U

CN218909973U - Composite filter element

Info

Publication number: CN218909973U
Application number: CN202220727314.1U
Authority: CN
Inventors: 刘社军; 曹铭津
Original assignee: Foshan Xinyao Environmental Protection Technology Co Ltd
Current assignee: Foshan Xinyao Environmental Protection Technology Co Ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2023-04-25
Anticipated expiration: 2032-03-30

Abstract

The utility model discloses a composite filter element, which comprises a filter shell, and a preposed filter element and a reverse osmosis filter element which are all arranged in the filter shell; the inside of the filter shell is sequentially provided with a first annular channel, a second annular channel, an inner cavity and a water filtering channel from outside to inside, and one end of the filter shell is provided with a raw water inlet, a preposed water outlet, a preposed water inlet, a pure water outlet and a waste water outlet; a preposed filter element is arranged between the first annular channel and the second annular channel, a reverse osmosis filter element is arranged at the center of the filter shell and positioned in the inner cavity, and a water filtering channel is formed between the reverse osmosis filter element and the inner wall of the inner cavity; the raw water inlet is communicated with the first annular channel, the preposed water outlet is communicated with the second annular channel, the preposed water inlet is communicated with the water filtering channel, and the pure water outlet and the waste water outlet are both communicated with the reverse osmosis filter element. According to the utility model, the preposed filter element and the reverse osmosis filter element are combined together, so that the volume of the water purifying equipment can be reduced, and excessive space occupation is avoided.

Description

Composite filter element

Technical Field

The utility model relates to the technical field of filter elements, in particular to a composite filter element.

Background

In order to improve water quality, most of household water purifying equipment in the current market is multi-stage filtration, the multi-stage filtration shows that a plurality of filter elements are arranged, and the plurality of filter elements mean that the volume of the water purifying equipment is larger, so that the water purifying equipment occupies a larger space.

Disclosure of Invention

Based on the above, the utility model aims to provide a composite filter element which is beneficial to reducing the volume of water purifying equipment.

Another object of the present utility model is to provide a water purifying apparatus employing the above composite filter element.

A composite filter element comprises a filter shell, and a preposed filter element and a reverse osmosis filter element which are all arranged in the filter shell;

the inside of the filter shell is sequentially provided with a first annular channel, a second annular channel, an inner cavity and a water filtering channel from outside to inside, and one end of the filter shell is provided with a raw water inlet, a preposed water outlet, a preposed water inlet, a pure water outlet and a waste water outlet;

the preposed filter element is arranged between the first annular channel and the second annular channel, the reverse osmosis filter element is arranged at the center of the filter shell and positioned in the inner cavity, and the water filtering channel is formed between the reverse osmosis filter element and the inner wall of the inner cavity;

the raw water inlet is communicated with the first annular channel, the preposed water outlet is communicated with the second annular channel, so that raw water in the first annular channel can be filtered into preposed water through the preposed filter element, then enters the second annular channel, and is discharged from the preposed water outlet; the preposed water inlet is communicated with the water filtering channel, the pure water outlet and the waste water outlet are both communicated with the reverse osmosis filter element, so that the preposed water enters the water filtering channel and is filtered through the reverse osmosis filter element, pure water and waste water are filtered out, and the pure water and the waste water are correspondingly discharged from the pure water outlet and the waste water outlet.

According to the utility model, the preposed filter elements and the reverse osmosis filter elements are combined together, so that the number of filter elements in the water purifying equipment can be reduced, the structure of the water purifying equipment is simpler, the filter elements in the water purifying equipment are more convenient to install, and the volume of the water purifying equipment can be reduced, so that the occupation of excessive space is avoided.

Preferably, the pre-filter element comprises a PP cotton layer and an activated carbon layer which are sequentially arranged from outside to inside.

Preferably, the PP cotton is folded together and laid outside the activated carbon layer.

Preferably, the reverse osmosis filter element comprises a reverse osmosis membrane, a flow guiding cloth and a central tube, wherein the central tube is arranged at the center of the filter shell, a pure water outlet is communicated with the inside of the central tube, the flow guiding cloth is coiled outside the central tube, and the reverse osmosis membrane is coiled outside the central tube and wraps the flow guiding cloth.

Preferably, the reverse osmosis membrane is folded in a U shape, and after one end of the reverse osmosis membrane, which is far away from the opening, is fixed on the outer side of the central tube, the reverse osmosis membrane is wound outside the central tube layer by layer.

Preferably, the inner side of the U-shaped folded reverse osmosis membrane is clamped with a carbon-containing material layer.

Preferably, the carbon-containing material layer is a carbon fiber layer.

As a second aspect, the present utility model also relates to a water purification apparatus comprising the above-mentioned composite filter element.

Compared with the prior art, the water purifying device provided by the utility model has the advantages that the composite filter element is adopted, so that the installation quantity of the filter elements in the water purifying device can be reduced, the structure in the water purifying device is greatly simplified, the volume of the water purifying device can be reduced, the occupation of excessive space is avoided, and the practicability is high.

For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.

Drawings

FIG. 1 is a perspective view of an embodiment of the present utility model;

fig. 2 is a cross-sectional view of an embodiment of the present utility model.

Reference numerals: 1. a filter shell; 2. a filter element is arranged in front; 3. a reverse osmosis filter element; 4. a first annular channel; 5. a second annular channel; 6. an inner cavity; 7. a water filtering channel; 8. a raw water inlet; 9. a front water outlet; 10. a front water inlet; 11. a pure water outlet; 12. and a waste water outlet.

Detailed Description

Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible mentioned in this specification are defined with respect to their construction, and they are relative concepts. Therefore, the position and the use state of the device may be changed accordingly. These and other directional terms should not be construed as limiting terms.

The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of implementations consistent with aspects of the present disclosure.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, the present utility model relates to a composite filter element: comprises a filter shell 1, a preposed filter element 2 and a reverse osmosis filter element 3 which are all arranged in the filter shell 1;

the filter shell 1 is internally provided with a first annular channel 4, a second annular channel 5, an inner cavity 6 and a water filtering channel 7 in sequence from outside to inside, and one end of the filter shell 1 is provided with a raw water inlet 8, a front water outlet 9, a front water inlet 10, a pure water outlet 11 and a waste water outlet 12;

the preposed filter element 2 is arranged between the first annular channel 4 and the second annular channel 5, the reverse osmosis filter element 3 is arranged at the center of the filter shell 1 and is positioned in the inner cavity 6, and the water filtering channel 7 is formed between the reverse osmosis filter element 3 and the inner wall of the inner cavity 6;

the raw water inlet 8 is communicated with the first annular channel 4, the preposed water outlet 9 is communicated with the second annular channel 5, so that raw water in the first annular channel 4 can be filtered into preposed water through the preposed filter element 2, then enters the second annular channel 5, and is discharged from the preposed water outlet 9; the preposed water inlet 10 is communicated with the water filtering channel 7, the pure water outlet 11 and the waste water outlet 12 are both communicated with the reverse osmosis filter element 3, so that the preposed water enters the water filtering channel 7 and is filtered through the reverse osmosis filter element 3, pure water and waste water are filtered out, and the pure water and the waste water are correspondingly discharged from the pure water outlet 11 and the waste water outlet 12.

According to the utility model, the preposed filter elements 2 and the reverse osmosis filter elements 3 are combined together, so that the number of filter elements in the water purifying equipment can be reduced, the structure of the water purifying equipment is simpler, the filter elements in the water purifying equipment are more convenient to install, and the volume of the water purifying equipment can be reduced, so that the occupation of excessive space is avoided.

Preferably, the pre-filter element 2 comprises a PP cotton layer and an active carbon layer which are sequentially arranged from outside to inside, so as to perform preliminary filtration on raw water, filter sediment and suspended matters in the raw water and adsorb residual chlorine.

Further, the PP cotton is folded together and paved on the outer side of the active carbon layer, so that the quality of preliminary filtration is improved.

In this embodiment, the reverse osmosis filter element 3 includes a reverse osmosis membrane, a flow guiding cloth and a central tube, the central tube is disposed at the center of the filter shell 1, and the pure water outlet 11 is communicated with the inside of the central tube, the flow guiding cloth is disposed at the outer side of the central tube, and the reverse osmosis membrane is disposed at the outer side of the central tube and wraps the flow guiding cloth.

By arranging the reverse osmosis filter element 3, bacteria, viruses and the like in the water are filtered, the taste of the pure water is improved, and the quality of water treatment is improved.

Preferably, the reverse osmosis membrane is U-shaped folded, and after one end of the reverse osmosis membrane, which is far away from the opening, is fixed on the outer side of the central tube, the reverse osmosis membrane is wound outside the central tube layer by layer so as to improve the water treatment effect.

Further, the inner side of the U-shaped folded reverse osmosis membrane is clamped with a carbon-containing material layer, and the carbon-containing material layer is a carbon fiber layer, so that oxidative substances such as residual chlorine in water are further removed, and the water treatment effect is improved.

The utility model also relates to water purifying equipment, which comprises the composite filter element.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims

1. A composite filter element, characterized in that: comprises a filter shell, a preposed filter element and a reverse osmosis filter element which are all arranged in the filter shell;

2. The composite filter element of claim 1, wherein the pre-filter element comprises PP cotton and activated carbon layers sequentially disposed from the outside to the inside.

3. The composite filter element of claim 2, wherein the PP cotton is folded together and laid outside the activated carbon layer.

4. The composite filter element of claim 1, wherein the reverse osmosis filter element comprises a reverse osmosis membrane, a flow guiding cloth and a central tube, the central tube is arranged at the center of the filter shell, a pure water outlet is communicated with the inside of the central tube, the flow guiding cloth is coiled outside the central tube, and the reverse osmosis membrane is coiled outside the central tube and wraps the flow guiding cloth.

5. The composite filter element of claim 4, wherein the reverse osmosis membrane is folded in a U-shape, and the reverse osmosis membrane is rolled up outside the central tube after one end of the reverse osmosis membrane away from the opening is fixed outside the central tube.

6. The composite filter element according to claim 5, wherein the inside of the reverse osmosis membrane folded in a U shape is sandwiched with a carbon-containing material layer.

7. The composite filter element of claim 6, wherein the carbon-containing material layer is a carbon fiber layer.