CN212799723U

CN212799723U - Composite filter element

Info

Publication number: CN212799723U
Application number: CN202021330529.7U
Authority: CN
Inventors: 麦嘉杰
Original assignee: Foshan Micro Midea Filter Manufacturing Co Ltd
Current assignee: Foshan Micro Midea Filter Manufacturing Co Ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-03-26
Anticipated expiration: 2030-07-08

Abstract

The utility model discloses a composite filter element, this composite filter element includes center tube, activated carbon fiber and active carbon. The periphery wall of the central tube is provided with a plurality of water through holes, the periphery of the central tube is coated with a blocking layer, and the blocking layer is used for preventing granular or powdery substances from penetrating through the water through holes. The activated carbon fiber wraps the periphery of the central tube, and the blocking layer is located between the central tube and the activated carbon fiber. The active carbon is granular or powdery, and the active carbon is clamped between the barrier layer and the active carbon fiber. The composite filter element of the utility model can solve the technical problems that the prior activated carbon fiber filter element not only pollutes the environment during the manufacturing process, but also has higher production cost.

Description

Composite filter element

Technical Field

The utility model relates to a water purification technology field, in particular to composite filter element.

Background

The existing activated carbon fiber filter element is mostly formed by a wet method, namely, after being ground and crushed, the activated carbon fiber filter element is stirred and mixed with slurry, and after being shaped and dried by a non-woven fabric coating central tube and a mould, the outer layer of the activated carbon fiber filter element is coated with high-precision non-woven fabric. However, in the manufacturing process, the carbon fiber batting is easy to float in the air, and a wastewater treatment device is required to be added for treating the generated wastewater, so that the environment is polluted, and the production cost is high.

The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a composite filter element, which aims to solve the technical problems that the prior activated carbon fiber filter element not only pollutes the environment during the manufacturing process, but also has higher production cost.

In order to achieve the above purpose, the composite filter element provided by the utility model comprises a central tube, activated carbon fibers and activated carbon. The periphery wall of the central tube is provided with a plurality of water through holes, the periphery of the central tube is coated with a blocking layer, and the blocking layer is used for preventing granular or powdery substances from penetrating through the water through holes. The activated carbon fiber wraps the periphery of the central tube, and the blocking layer is located between the central tube and the activated carbon fiber. The active carbon is granular or powdery, and the active carbon is clamped between the barrier layer and the active carbon fiber.

In one embodiment, the activated carbon fiber is in a felt structure, and the activated carbon is attached to or embedded in the activated carbon fiber.

In one embodiment, the activated carbon fibers are wound in multiple layers along the outer periphery of the central tube, and the activated carbon is sandwiched between every two adjacent layers of the activated carbon fibers.

In one embodiment, the barrier layer is wrapped with multiple layers around the outer circumference of the base pipe.

In one embodiment, the activated carbon fiber has a barrier section wound around the outer circumference of the base pipe and forming the barrier layer, and a filter section wound around the outer circumference of the barrier section in the circumferential direction of the base pipe in the length direction thereof.

In one embodiment, the activated carbon fiber further has a protective section in a length direction thereof, the protective section and the blocking section are respectively connected to both ends of the filtering section, and the protective section is wound around the outer circumference of the filtering section along the outer circumference of the central tube.

In one embodiment, the composite filter element further includes a non-woven fabric having a first section in a length direction thereof, the first section being wound around the outer circumference of the central tube and forming the barrier layer.

In one embodiment, the nonwoven fabric further has a second section in the longitudinal direction thereof, and the activated carbon fiber is attached to the second section and wound around the outer periphery of the first section along the outer periphery of the center tube together with the second section.

In an embodiment, the activated carbon fiber has a first surface and a second surface opposite to each other, the first surface is attached to the second section, the activated carbon is sandwiched between the second surface and the first section, and/or the activated carbon is sandwiched between the second surface and the second section.

In one embodiment, the nonwoven fabric further has a third section in a longitudinal direction thereof, the third section and the first section are connected to both ends of the second section, respectively, and the third section is wound around the outer circumference of the second section along the outer circumference of the central tube.

The utility model discloses composite filter element in during manufacturing, only need through the mode of convoluteing or set with barrier layer and activated carbon fiber cladding outside the center tube to press from both sides between barrier layer and activated carbon fiber and be equipped with graininess or powdered activated carbon can, and need not polish activated carbon fiber and smash, also need not mix and dry through stirring with the thick liquid and form. Not only avoided the filter core to cause easily in the in-process of making that carbon fiber batting floats in the air and the circumstances of pollution production environment, still can not produce waste water and then need not set up effluent treatment plant, reduced the manufacturing cost of filter core.

Additionally, the utility model discloses composite filter element need not dry to the filter core during manufacturing yet to no longer need use relevant drying equipment, not only reduced manufacturing cost, still simplified filter core production technology, improved production efficiency.

And the type of the active carbon and the usage amount of the active carbon fiber can be selected according to actual conditions, for example, silver-loaded active carbon, heavy metal-removed active carbon and the like can be adopted, so that the composite filter element has high adjustability and wide extensible products.

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 a schematic view of the composite filter element of FIG. 1 prior to being wound;

fig. 3 is a schematic structural view of another embodiment of the composite filter element of the present invention;

FIG. 4 is a schematic view of the composite filter element of FIG. 3 prior to being wound;

fig. 5 is a schematic structural view of the composite filter element in fig. 3 when being wound.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)	Reference numerals	Name (R)
						10	Composite filter element	32	Filter segment	51	First stage
20	Central tube	33	Protective segment	52	Second section
						21	Water through hole	34	First surface	53	Third stage
22	Barrier layer	35	Second surface	60	Press roll
						30	Activated carbon fiber	40	Activated carbon	70	Tiling device
31	Blocking section	50	Non-woven fabric

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

Detailed Description

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications 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 indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly 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.

The utility model provides a composite filter element.

In the embodiment of the present invention, as shown in fig. 1, the composite filter element 10 includes a central tube 20, activated carbon fibers 30, and activated carbon 40. The peripheral wall of the central tube 20 is provided with a plurality of water through holes 21, the outer periphery of the central tube 20 is coated with a barrier layer 22, and the barrier layer 22 is used for preventing granular or powdery substances from passing through the water through holes 21. The activated carbon fiber 30 is wrapped around the center tube 20, and the barrier layer 22 is located between the center tube 20 and the activated carbon fiber 30. The activated carbon 40 is granular or powdery, and the activated carbon 40 is sandwiched between the barrier layer 22 and the activated carbon fiber 30.

In this embodiment, the central tube 20 is a basic skeleton of the composite filter element 10, and is substantially in a shape of a circular tube, and the interior of the central tube 20 is hollow and communicated to a purified water outlet end of the water purifying apparatus, so that a user can take filtered purified water. The central tube 20 has a plurality of water passage holes 21 in its circumferential wall, the plurality of water passage holes 21 communicate with the inside of the central tube 20, and raw water is purified to become purified water and then enters the inside of the central tube 20 through the plurality of water passage holes 21. The number, shape and arrangement of the water passage holes 21 are not limited, and can be set according to actual needs.

In this embodiment, the outer peripheral wall of the central tube 20 is further covered with a barrier layer 22, and the barrier layer 22 is used to prevent the granular or powdery substances from passing through the water through holes 21 and entering the interior of the central tube 20, thereby avoiding the pollution of the purified water inside the central tube 20. The barrier layer 22 may be made of a non-woven fabric 50, a carbon fiber cloth, or other materials to cover the central tube 20, i.e., the barrier layer 22 may perform other functions such as water purification, priming, etc., in addition to the function of preventing the granular or powdery substances from passing through the water passage holes 21. The barrier layer 22 may be one or more layers, and the barrier layer 22 may be wrapped around the central tube 20 in a winding manner, or may be wrapped around the central tube 20 in a sleeving manner, which may be specifically set according to actual conditions.

In this embodiment, the outer periphery of the central tube 20 is further covered with an activated carbon fiber 30, specifically, the activated carbon fiber 30 is covered on the outer periphery of the barrier layer 22, and the barrier layer 22 is located between the central tube 20 and the activated carbon fiber 30. The activated carbon fiber 30 in this embodiment may be an existing activated carbon fiber 30 cloth directly wound or sleeved on the outer circumference of the central tube 20. It can be understood that the activated carbon fiber 30 has a developed microporous structure, small pore size, narrow distribution, large adsorption capacity, and high adsorption speed, is a very good purification material, and can effectively purify raw water. Similarly, the activated carbon fiber 30 may be one or more layers, and the activated carbon fiber 30 may be wrapped around the central tube 20 in a winding manner, or may be wrapped around the central tube 20 in a sleeving manner, which may be specifically set according to actual conditions.

In this embodiment, the composite filter element 10 is further provided with powdered or granular activated carbon 40, the activated carbon 40 is sandwiched between the blocking layer 22 and the activated carbon fiber 30, wherein the blocking layer 22 can prevent the activated carbon 40 from entering the interior of the central tube 20 through the water through hole 21, and the activated carbon fiber 30 and the activated carbon 40 are matched with each other, so that the composite filter element 10 simultaneously combines the advantages of large adsorption capacity, high adsorption speed and strong adsorption capacity of the activated carbon fiber 30, not only is the purification performance of the composite filter element 10 enhanced, but also the adsorption range is widened.

The granular or powdered activated carbon 40 may be first spread on the surface of the activated carbon fiber 30, and then wound around the outer circumference of the barrier layer 22 together with the activated carbon fiber 30, so that the activated carbon 40 may be stably sandwiched between the barrier layer 22 and the activated carbon fiber 30. Similarly, the activated carbon 40 may be rolled by a roller 60 or the like while the activated carbon 40 is laid on the activated carbon fiber 30, so that the activated carbon 40 may be embedded in the activated carbon fiber 30 or tightly attached to the activated carbon fiber 30.

When the particle size of the activated carbon 40 is small, a layer of non-woven fabric 50 or other filtering material capable of preventing the powder or granular substances from passing through can be laid on the surface of the activated carbon fiber 30, and then the activated carbon 40 is laid on the non-woven fabric 50 layer, so that the leakage of the activated carbon 40 due to the small particle size can be avoided, and the laying of the activated carbon 40 is facilitated.

The utility model discloses composite filter element 10 when making, only need through convoluteing or the mode such as set with barrier layer 22 and the cladding of activated carbon fiber 30 outside center tube 20 to press from both sides between barrier layer 22 and activated carbon fiber 30 and be equipped with graininess or powdered activated carbon 40 can, and need not polish activated carbon fiber 30 and smash, also need not form through mixing and drying with the thick liquid stirring. Not only avoided the filter core to cause easily in the in-process of making that carbon fiber batting floats in the air and the circumstances of pollution production environment, still can not produce waste water and then need not set up effluent treatment plant, reduced the manufacturing cost of filter core.

Additionally, the utility model discloses composite filter element 10 also need not dry to the filter core during manufacturing to no longer need use relevant drying equipment, not only reduced manufacturing cost, still simplified filter core production technology, improved production efficiency.

And the type of the activated carbon 40 and the amount of the activated carbon fiber 30 can be selected according to actual conditions, for example, the silver-loaded activated carbon 40, the heavy metal-removed activated carbon 40 and the like can be adopted, so that the composite filter element 10 has high adjustability and wide extensible products.

In one embodiment, the activated carbon fiber 30 is in a felt structure, and the activated carbon 40 is attached to or embedded in the activated carbon fiber 30. It can be understood that the activated carbon fiber 30 having a felt structure is fluffy, and the activated carbon fiber 30 has more gap structures to accommodate granular or powdered activated carbon 40, so that the activated carbon 40 can be better attached to the activated carbon fiber 30 or embedded into the activated carbon fiber 30, thereby reducing the overall volume of the composite filter element 10, and the saved volume can be used for compounding other filter materials to form multi-stage filtration.

Specifically, while the activated carbon fiber 30 is wound around the central tube 20, the activated carbon 40 may be spread on the activated carbon fiber 30 by means of a spreading tool, and the activated carbon 40 may be rolled by means of the pressing roller 60, so that the activated carbon 40 may be well attached to the activated carbon fiber 30 or embedded into the activated carbon fiber 30.

Of course, the composite filter element 10 of the present invention can also adopt activated carbon fiber 30 paper, activated carbon fiber 30 filament, etc., and can be specifically set according to actual needs.

In one embodiment, as shown in fig. 3, the activated carbon fibers 30 are wound in multiple layers along the outer circumference of the central tube 20, and the activated carbon 40 is sandwiched between every two adjacent layers of the activated carbon fibers 30. That is, in addition to the activated carbon 40 sandwiched between the barrier layer 22 and the activated carbon fibers 30, the activated carbon 40 is also sandwiched between the activated carbon fibers 30, so that the effect of efficient adsorption of the composite filter element 10 can be achieved, and the usage amounts of the activated carbon 40 and the activated carbon fibers 30 can be adjusted according to actual conditions, thereby achieving high flexibility.

In one embodiment, the barrier layer 22 is wrapped in multiple layers around the outer circumference of the base pipe 20. Therefore, the granular or powdery active carbon 40 can be ensured not to pass through the water through holes 21 and enter the central tube 20, and the normal use of the water purifying equipment is ensured.

In other embodiments, the barrier layer 22 may be formed directly from a portion of the activated carbon fiber 30 wrapped around the central tube 20 to facilitate manufacturing and to simplify the construction of the composite filter element 10.

Specifically, as shown in fig. 1 and 2, in one embodiment, the activated carbon fiber 30 has a barrier section 31 and a filter section 32 in a longitudinal direction thereof, the barrier section 31 is wound around the outer circumference of the central tube 20 to form the barrier layer 22, and the filter section 32 is wound around the outer circumference of the barrier section 31 in a circumferential direction of the central tube 20.

In a specific operation, the blocking section 31 of the activated carbon fiber 30 may be wound around the central tube 20 for one or more turns, and then the filtering section 32 may be wound outside the blocking section 31. When the filter segment 32 is wound outside the barrier segment 31, the filter segment 32 may be wound while the activated carbon 40 is laid on the filter segment 32. So make when coiling filter segment 32, also locate the active carbon 40 clamp between separation section 31 and filter segment 32 to and clamp and locate between two adjacent circles of filter segments 32, very big improvement composite filter element 10's production efficiency.

It should be noted here that the above-mentioned "activated carbon fiber 30 has the barrier section 31 and the filtration section 32 in the longitudinal direction" refers to the longitudinal direction in the state (i.e., the unwound state) in which the activated carbon fiber 30 is not wound around the central tube 20, and has the barrier section 31 and the filtration section 32 in the longitudinal direction.

In one embodiment, as shown in fig. 2, the activated carbon fiber 30 further has a protective section 33 in the length direction thereof, the protective section 33 and the barrier section 31 are respectively connected to both ends of the filter section 32, and the protective section 33 is wound around the outer circumference of the filter section 32 along the outer circumference of the central tube 20. It can be understood that after the activated carbon fiber 30 is wound around the central tube 20 for a plurality of circles or reaches a requirement, the edge sealing can be performed through the protection section 33, that is, the protection section 33 is finally wound around the central tube 20 for a plurality of circles, so as to avoid the situation that the filtering effect is affected by the diffusion of the activated carbon 40 to the outside of the composite filter element 10.

In some other embodiments, as shown in fig. 3 and 4, in order to better prevent the granular or powdered activated carbon 40 from passing through the water passage holes 21 and reduce the manufacturing cost of the composite filter element 10, the composite filter element 10 further includes a non-woven fabric 50, the non-woven fabric 50 has a first segment 51 in the length direction thereof, and the first segment 51 is wound around the outer circumference of the central tube 20 and forms the barrier layer 22. It can be understood that the barrier layer 22 is formed by winding the nonwoven fabric 50 around the central tube 20, so that the barrier layer 22 has a good barrier effect on the activated carbon 40, and the activated carbon 40 is prevented from permeating into the central tube 20 after a long time use.

Here, the above-mentioned "the nonwoven fabric 50 has the first section 51 in the longitudinal direction" means the longitudinal direction in a state where the activated carbon fiber 30 is not wound around the center tube 20 (i.e., in a developed state), and has the first section 51 in the longitudinal direction, and the first section 51 is wound around the center tube 20 so as to cover the outer circumference of the center tube 20.

In one embodiment, as shown in fig. 3 to 5, the nonwoven fabric 50 further has a second section 52 in the longitudinal direction thereof, and the activated carbon fiber 30 is attached to the second section 52 and wound around the outer circumference of the first section 51 along the outer circumference of the central tube 20 together with the second section 52. In a specific operation, the first section 51 of the non-woven fabric 50 is wound around the central tube 20 for one or more turns, and then the second section 52 with the activated carbon fiber 30 attached thereto is wound around the first section 51. When the second stage 52 is wound outside the first stage 51, the second stage 52 may be wound while the activated carbon 40 is laid on the activated carbon fiber 30. Therefore, when the second section 52 is wound, the activated carbon 40 is clamped between the first section 51 and the activated carbon fiber 30, and the production efficiency of the composite filter element 10 is improved.

Of course, in other embodiments, the activated carbon fiber 30 is not completely attached to the second section 52, and the activated carbon fiber 30 is partially attached to the first section 51 and wraps around the central tube 20 together with the first section 51, i.e., the barrier layer 22 is formed by the nonwoven fabric 50 and the activated carbon fiber 30 together wrapping around the central tube 20. Specifically, the first segment 51 may be wound around the central tube 20 one or more times, and then the central tube 20 may be wound with the activated carbon fiber 30 attached to the first segment 51. Alternatively, the activated carbon fiber 30 may be attached to the first section 51 of the nonwoven fabric 50, and the first section 51 and the activated carbon fiber 30 are wound around the central tube 20 at first.

In one embodiment, as shown in fig. 3 to 5, the activated carbon fiber 30 has a first surface 34 and a second surface 35 opposite to each other, the first surface 34 is attached to the second section 52, the activated carbon 40 is sandwiched between the second surface 35 and the first section 51, and/or the activated carbon 40 is sandwiched between the second surface 35 and the second section 52. That is, when the activated carbon fiber 30 and the second segment 52 are wound together by a plurality of turns, the activated carbon 40 is further sandwiched between every two turns, so that the composite filter element 10 has a more efficient adsorption effect.

In one embodiment, as shown in fig. 3 to 5, the nonwoven fabric 50 further has a third section 53 in the longitudinal direction thereof, the third section 53 and the first section 51 are connected to both ends of the second section 52, respectively, and the third section 53 is wound around the outer circumference of the second section 52 along the outer circumference of the central tube 20. It can be understood that the non-woven fabric 50 may be edge-sealed by the third section 53 after the activated carbon fiber 30 is wound around the central tube 20 for a plurality of turns or the requirement is met, that is, the third section 53 is finally wound around the central tube 20 for a plurality of turns, so as to avoid the situation that the activated carbon 40 diffuses out of the composite filter element 10 to affect the filtering effect.

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

Claims

1. A composite filter element, comprising:

the central tube is provided with a plurality of water through holes on the peripheral wall, the periphery of the central tube is coated with a blocking layer, and the blocking layer is used for preventing granular or powdery substances from passing through the water through holes;

the activated carbon fiber is coated on the periphery of the central tube, and the blocking layer is positioned between the central tube and the activated carbon fiber; and the number of the first and second groups,

the active carbon is granular or powdery, and is clamped between the barrier layer and the active carbon fiber.

2. The composite filter element of claim 1, wherein the activated carbon fibers are in a felt structure, and the activated carbon is attached to or embedded in the activated carbon fibers.

3. The composite filter element according to claim 1, wherein the activated carbon fibers are wound in multiple layers along the outer periphery of the central tube, and the activated carbon is sandwiched between every two adjacent layers of the activated carbon fibers.

4. The composite filter element of claim 1, wherein the barrier layer is wrapped in a plurality of layers around the outer circumference of the center tube.

5. The composite filter element according to any one of claims 1 to 4, wherein the activated carbon fiber has a barrier section wound around the outer periphery of the central tube and forming the barrier layer and a filter section wound around the outer periphery of the barrier section in the circumferential direction of the central tube in the length direction thereof.

6. The composite filter element according to claim 5, wherein the activated carbon fiber further has a protective section in a length direction thereof, the protective section and the barrier section are respectively connected to both ends of the filter section, and the protective section is wound around the outer circumference of the filter section along the outer circumference of the central tube.

7. The composite filter element according to any one of claims 1 to 4, further comprising a nonwoven fabric having a first section in a length direction thereof, the first section being wound around the outer periphery of the central tube and forming the barrier layer.

8. The composite filter element according to claim 7, wherein the nonwoven fabric further has a second section in the longitudinal direction thereof, and the activated carbon fiber is attached to the second section and wound around the outer periphery of the first section along the outer periphery of the center tube together with the second section.

9. The composite filter element of claim 8, wherein the activated carbon fiber has opposing first and second surfaces, the first surface being attached to the second section;

the active carbon is clamped between the second surface and the first section, and/or the active carbon is clamped between the second surface and the second section.

10. The composite filter element according to claim 9, wherein the nonwoven fabric further has a third section in the length direction thereof, the third section and the first section are connected to both ends of the second section, respectively, and the third section is wound around the outer circumference of the second section along the outer circumference of the center tube.