CN211864576U

CN211864576U - Ceramic membrane and filter device

Info

Publication number: CN211864576U
Application number: CN202020135606.7U
Authority: CN
Inventors: 连伟; 国中华; 王玉玲; 施聪; 王夏雨; 王韦; 杨建中; 潘建军; 何毅峻; 马弘; 吴扬彬
Original assignee: Zhejiang Qianhang Intelligent Technology Co ltd
Current assignee: Zhejiang Qianhang Intelligent Technology Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-11-06
Anticipated expiration: 2030-01-20

Abstract

The application discloses ceramic membrane and filter equipment relates to membrane separation's technical field to the technical problem who needs change frequently among the solution prior art. The ceramic membrane comprises a base body, a plurality of first pore channels, a plurality of second pore channels and a plurality of water storage pore channels, wherein the base body is of a cylindrical structure made of ceramic; the first pore canal is arranged on the substrate and penetrates through two end faces of the substrate; the second pore passage is arranged on the side surface of the base body; the water storage pore passage is arranged in the base body, wherein the water storage pore passage is not communicated with the first pore passage, and the water storage pore passage is communicated with the second pore passage. Therefore, the ceramic membrane is made of ceramic, has high structural stability and long service life, does not need to be replaced frequently, and reduces the use cost.

Description

Ceramic membrane and filter device

Technical Field

The application relates to the technical field of membrane separation, in particular to a ceramic membrane and a filtering device.

Background

In recent years, environmental protection policies put forward more and more strict requirements and restrictions on industrial wastewater treatment, and wastewater treatment and efficient recycling are widely regarded. In order to improve the reuse rate of the wastewater, the filtration membrane technology becomes an important means for wastewater reuse, and sewage in industrial production and residential life is recycled after being treated.

In the prior art, the most common filtration membranes are polymeric filtration membranes, such as: the fiber membrane, however, has low structural stability and short service life, and needs to be replaced frequently, which increases the use cost.

SUMMERY OF THE UTILITY MODEL

The present application aims to provide a ceramic membrane to solve the technical problem in the prior art that needs to be replaced frequently.

The utility model aims at providing a filter equipment to solve the technical problem that needs change frequently among the prior art.

The above technical problem of the present application is mainly solved by the following technical solutions:

a ceramic membrane comprises a substrate, a plurality of first pore channels, a plurality of second pore channels and a plurality of water storage pore channels, wherein the substrate is of a cylindrical structure made of ceramic; the first pore canal is arranged on the substrate and penetrates through two end faces of the substrate; the second pore passage is arranged on the side surface of the base body; the water storage pore canal is arranged in the base body, wherein the water storage pore canal is isolated from the first pore canal by partial structure of the base body, and the water storage pore canal is communicated with the second pore canal.

In one embodiment, the axis of the first hole is arranged in the same direction as the axis of the base.

In an embodiment, the first pore channels are arranged in an array on the end surface of the substrate, and the first pore channels are arranged in a plurality of rows, wherein the first pore channels in a plurality of rows form a first pore channel group, the ceramic membrane includes a plurality of first pore channel groups, and the water storage pore channels are sandwiched between two of the first pore channel groups.

In one embodiment, the length of the second channel is smaller than the length of the base.

In an embodiment, the plurality of second holes are divided into two second hole groups respectively close to two ends of the base, and each second hole group includes a plurality of second holes located at two sides of the water storage channel.

In an embodiment, the internal structure of the substrate at two adjacent first pore channels includes a first separation layer, a first intermediate layer, a support layer, a second intermediate layer, and a second separation layer, which are sequentially disposed.

In one embodiment, the first separation layer and the second separation layer have equal densities, the first intermediate layer and the second intermediate layer have equal densities, the first separation layer has a density greater than that of the first intermediate layer, and the first intermediate layer has a density greater than that of the support layer.

In an embodiment, the cross-sections of the first duct, the second duct, and the water storage duct along the aperture direction are hexagonal, circular, or square.

A filtering device comprises a machine shell and a ceramic membrane, wherein the machine shell is provided with an internal cavity, and a first pipeline and a second pipeline which are communicated with the internal cavity are connected to the machine shell; the ceramic membrane is the ceramic membrane, and the ceramic membrane is arranged in the inner cavity.

In one embodiment, two sealing rings are respectively disposed at two ends of the internal cavity in the casing, and the ceramic membrane is fixed in the casing through the sealing rings; and the shell is connected with a third pipeline communicated with the internal cavity.

In an embodiment, the inner cavity is cylindrical, the axis of the inner cavity and the axis of the base body are arranged in the same direction, the first pipeline and the third pipeline are respectively located at two ends of the inner cavity, and the second pipeline is located on the inner side surface of the inner cavity.

In an embodiment, the ceramic membrane is installed in the internal cavity, the second duct faces the inner surface of the casing, and an opening direction of the second duct intersects with an axial direction of the second pipeline.

Compared with the prior art, the beneficial effect of this application is: therefore, the ceramic membrane is made of ceramic, has high structural stability and long service life, does not need to be replaced frequently, and reduces the use cost. Therefore, the ceramic membrane does not need to be replaced frequently, and the use cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a half sectional view of a ceramic membrane according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of a substrate shown in one embodiment of the present application;

FIG. 3 is a semi-sectional view of a filter assembly according to an embodiment of the present application;

FIG. 4 is a schematic fluid flow diagram of a filtration apparatus according to an embodiment of the present application;

FIG. 5 is a schematic fluid flow diagram of a filtration apparatus according to an embodiment of the present application;

fig. 6 is a schematic fluid flow diagram of a filter device according to an embodiment of the present disclosure.

Icon: 100-a ceramic membrane; 900-a filtration device; 1-a substrate; 1 a-an end face of the substrate; 1 c-the side of the substrate; 2-a first porthole; 21-a first group of cells; 3-a second porthole; 31-a second set of cell channels; 4-water storage pore path; 11-a first separation layer; 12-a first intermediate layer; 13-a support layer; 14-a second intermediate layer; 15-a second separation layer; 5-a machine shell; 51-a flange; 52-sealing ring; 6-a first conduit; 7-a second conduit; 8-a third conduit; f1 — first direction; f2-second direction.

The thick arrows in the figure indicate the liquid or gas flow direction.

Detailed Description

The terms "first," "second," "third," and the like are used for descriptive purposes only and not for purposes of indicating or implying relative importance, and do not denote any order or order.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should be noted that the terms "inside", "outside", "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application.

In the description of the present application, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

The technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings.

Fig. 1 is a half-sectional view of a ceramic film 100 according to an embodiment of the present disclosure. The ceramic membrane 100 comprises a substrate 1, a plurality of first pore channels 2, a plurality of second pore channels 3 and a plurality of water storage pore channels 4, wherein the substrate 1 is of a cylindrical structure made of ceramic; the first pore canal 2 is arranged on the matrix 1 and penetrates through two end faces of the matrix 1; the second duct 3 is provided on the side face 1c of the base 1; the water storage hole 4 is arranged in the base body 1, wherein the water storage hole 4 is isolated from the first hole 2 by partial structure of the base body 1, and the water storage hole 4 is communicated with the second hole 3.

The water storage hole 4 is located inside the base 1 and does not penetrate any surface of the base 1, and the second hole 3 penetrates the side 1c of the base 1 for a channel formed on the side 1c of the base 1 and is communicated with the water storage hole 4.

In an operation process, raw water to be filtered enters the inside of the base body 1 from the first pore channel 2, under the action of pressure, the raw water to be filtered flows in the first pore channel 2 or outside the base body 1, small molecular substances such as liquid and the like enter the water storage pore channel 4 through the base body 1, large molecular substances such as pollutants, solids and the like are intercepted by the base body 1, stay on the inner surface of the first pore channel 2 and cannot enter the water storage pore channel 4, and finally, the liquid in the water storage pore channel 4 is sent out through the second pore channel 3, so that the effect of physical filtration is achieved.

The cross sections of the first cell 2, the second cell 3, and the water storage cell 4 in the pore diameter direction may be hexagonal, circular, or square.

The axis of the first porthole 2 is arranged in the same direction as the axis of the base body 1. The axial direction of the first porthole 2 is referred to as a first direction F1. In one embodiment, the substrate 1 may be integrally formed using fine ceramics having a purity of 99.9% or more, which is excellent in corrosion resistance and heat resistance. The diameter of the first porthole 2 is 2.5 mm. The size of the substrate 1 is

The diameter of the substrate 1 is 180mm and the length is 1500 mm.

The plurality of first cell channels 2 are arranged in an array on the end surface 1a of the base 1, and the first cell channels 2 are arranged in a plurality of columns, wherein the first cell channels 2 of each of the columns are arranged in a linear array along the second direction F2. The first pore channels 2 in the plurality of rows form a first pore channel group 21, the ceramic membrane 100 includes a plurality of first pore channel groups 21, and each water storage pore channel 4 is sandwiched between two first pore channel groups 21. The water storage channels 4 are used for collecting the filtered liquid in the two first channel groups 21, so that sufficient filtering can be ensured.

Each water storage pore 4 is sandwiched between two first pore groups 21, but only one longer water storage pore 4 may be provided between the two first pore groups 21, or a plurality of independent and short water storage pores 4 may be provided.

In one embodiment, two or five rows of the first channels 2 form a first channel group 21. Wherein, because the end surface 1a of the base 1 is circular, the number of the first cell channels 2 in each first cell channel group 21 is different, and the number of the first cell channels 2 in each first cell channel group 21 is determined by the corresponding space size on the end surface 1a of the base 1.

The length of the second pore canal 3 is less than that of the matrix 1; the second porthole 3 is an elongated slot arranged in the first direction F1. A plurality of second ducts 3 are provided at both ends of the base 1, and the second ducts 3 provided at the same end of the base 1 constitute a second duct group 31.

On one end of the base 1, in the second pore group 31, the second pores 3 are respectively arranged on the side surfaces 1c of the base 1 at two sides of the water storage pore 4 along the second direction F2, that is, the second pores 3 are symmetrically arranged along the first direction F1, and at least two second pores 3 correspond to and are communicated with the same water storage pore 4.

Since the end surface 1a of the base 1 is circular, the width of each water storage hole 4 along the second direction F2 is different, and the width of each water storage hole 4 along the second direction F2 is determined by the number of the first holes 2 in the first hole group 21 that are butted thereto. The length of the second port 3 communicating with the same water storage port 4 is determined by the width of the water storage port 4 in the second direction F2.

When the width of the water storage passage 4 in the second direction F2 is larger, the length of the second passage 3 communicating with the same water storage passage 4 in the first direction F1 is longer.

When the width of the water storage passage 4 in the second direction F2 is smaller, the length of the second passage 3 communicating with the same water storage passage 4 in the first direction F1 is smaller.

Fig. 2 is a cross-sectional view of a substrate 1 according to an embodiment of the present application. The internal structure of the matrix 1 at two adjacent first portholes 2 comprises a first separation layer 11, a first intermediate layer 12, a support layer 13, a second intermediate layer 14 and a second separation layer 15 which are arranged in sequence.

In one embodiment, the density of the first and second separation layers 11 and 15 is equal, the density of the first and second

intermediate layers

12 and 14 is equal, the density of the first separation layer 11 is greater than the density of the first intermediate layer 12, and the density of the first intermediate layer 12 is greater than the density of the support layer 13.

In an operation process, when raw water to be filtered flows in the first pore channels 2, under the action of pressure, small molecular substances such as liquid and the like move away in the first separation layer 11, the first middle layer 12, the supporting layer 13, the second middle layer 14 and the second separation layer 15, and macromolecular substances such as pollutants, solids and the like are intercepted by the first separation layer 11 and the second separation layer 15 and cannot move away and mix at the adjacent two first pore channels 2, so that the physical filtering effect is influenced.

Referring to fig. 3, a half-sectional view of a filter device 900 according to an embodiment of the present disclosure is shown. The filtering device 900 comprises a casing 5 and a ceramic membrane 100, wherein the casing 5 is provided with an internal cavity, and a first pipeline 6, a second pipeline 7 and a third pipeline 8 which are communicated with the internal cavity are connected to the casing 5; the first duct 6 is provided below the third duct 8. Ceramic membrane 100 is disposed within the internal cavity.

The inner cavity is cylindrical, the axis of the inner cavity and the axis of the base body 1 are arranged in the same direction, the first pipeline 6 and the third pipeline 8 are respectively located at two ends of the inner cavity, and the second pipeline 7 is located on the inner side face of the inner cavity.

A sealing ring 52 is disposed in the housing 5 at each end of the internal cavity, and the ceramic membrane 100 is fixed in the housing 5 by the sealing rings 52.

The sealing ring 52 not only makes the ceramic membrane 100 more firmly fixed, but also makes it possible to only enter the substrate 1 from the first channel 2 when the liquid or gas is introduced into the internal cavity from the first channel 6 or the third channel 8; when a liquid or a gas is introduced from the ceramic membrane 100 into the first channel 6 or the third channel 8, only the liquid or the gas can be discharged from the first cell channels 2.

When the ceramic membrane 100 is installed in the internal cavity, the second port channel 3 faces the inner surface of the casing 5, and the opening direction of the second port channel 3 intersects with the axial direction of the second conduit 7. In one embodiment, the axial direction of the second duct 7 is perpendicular to both the first direction F1 and the second direction F2.

The second channels 3 face the inner surface of the housing 5, and after the liquid is filtered in the ceramic membrane 100, the filtered liquid flows out of the second channels 3, does not directly flow out of the second channels 7, but flows away from the outer surface of the ceramic membrane 100 (the substrate 1) and then flows out of the second channels 7.

In one embodiment, the first pipe 6 and the third pipe 8 may be connected to the housing 5 through a flange 51, or may be integrally formed with the housing 5, and the second pipe 7 may be connected to the housing 5 through a flange 51, or may be integrally formed with the housing 5.

Fig. 4 is a schematic diagram illustrating a liquid flow direction of a filter device 900 according to an embodiment of the disclosure. Raw water to be filtered is introduced into the inner cavity from the first pipeline 6, enters the substrate 1 from the first pore passage 2, is filtered, reaches the water storage pore passage 4, flows out from the second pore passage 3, and finally flows out of the filtered liquid from the second pipeline 7. Wherein, the first pipeline 6 can be connected with components such as a water pump and the like.

Fig. 5 is a schematic diagram illustrating a liquid flow direction of a filter device 900 according to an embodiment of the disclosure. Liquid for backwashing is introduced into the inner cavity from the second pipeline 7, enters the substrate 1 from the second pore channel 3, reaches the water storage pore channel 4, flows out from the first pore channel 2, simultaneously carries away pollutants, solids and other macromolecular substances on the inner surface of the first pore channel 2, and finally flows out from the first pipeline 6 to wrap the gas carrying the macromolecular substances, so that backwashing effect is achieved, the filtering device 900 can be repeatedly used, the ceramic membrane 100 does not need to be frequently replaced, and the use cost is reduced. The second pipe 7 may be connected to a water pump or the like.

The second pipeline 7 is located above the first pipeline 6 and at the upper end of the casing 5, so that a better backwashing effect can be achieved by using gravity in the backwashing process.

Fig. 6 is a schematic diagram illustrating a liquid flow direction of a filter device 900 according to an embodiment of the disclosure. Gas for backwashing is introduced into the inner cavity from the third pipeline 8 and flows out of the first pore channel 2, meanwhile, the gas brings out pollutants, solids and other macromolecular substances on the inner surface of the first pore channel 2, and finally, the gas flows out of the first pipeline 6 and wraps the macromolecular substances to achieve the backwashing effect, so that the filtering device 900 can be repeatedly used, the ceramic membrane 100 does not need to be frequently replaced, and the use cost is reduced. Wherein, the third pipeline 8 can also be connected with components such as an air pump and the like.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A ceramic membrane, comprising:

a base body having a cylindrical structure made of ceramic;

the first pore channels are arranged on the base body and penetrate through two end faces of the base body;

a plurality of second channels disposed on a side of the substrate; and

and the water storage pore passages are arranged in the base body, and are communicated with the second pore passages.

2. The ceramic membrane of claim 1, wherein the axes of the first channels are co-directional with the axis of the substrate.

3. The ceramic membrane of claim 2, wherein a plurality of the first channels are arranged in an array on the end face of the substrate, and the first channels are arranged in a plurality of rows,

the ceramic membrane comprises a ceramic membrane body, a ceramic membrane layer and a plurality of first pore channels, wherein the first pore channels in a plurality of rows form a first pore channel group, the ceramic membrane layer comprises a plurality of first pore channel groups, and the water storage pore channels are clamped between the two first pore channel groups.

4. The ceramic membrane of claim 3, wherein the length of the second channel is less than the length of the matrix.

5. The ceramic membrane of any one of claims 1 to 4, wherein the internal structure of the matrix at two adjacent first cell channels comprises a first separation layer, a first intermediate layer, a support layer, a second intermediate layer and a second separation layer arranged in sequence;

wherein the first separation layer and the second separation layer are equal in density, the first intermediate layer and the second intermediate layer are equal in density, the first separation layer is greater in density than the first intermediate layer, and the first intermediate layer is greater in density than the support layer.

6. The ceramic membrane of claim 5, wherein the first cell channels, the second cell channels, and the water storage cell channels have a hexagonal, circular, or square cross-section in the direction of the pore diameter.

7. A filter device, comprising:

the shell is provided with an internal cavity, and a first pipeline and a second pipeline which are communicated with the internal cavity are connected to the shell; and

a ceramic membrane according to any one of claims 1 to 6, disposed within the internal cavity.

8. The filtration device of claim 7, wherein a sealing ring is disposed in the housing at each end of the internal cavity, and the ceramic membrane is secured in the housing by the sealing rings; and the shell is connected with a third pipeline communicated with the internal cavity.

9. The filter device according to claim 8, wherein the inner cavity is cylindrical, the axis of the inner cavity is arranged in the same direction as the axis of the base, the first and third pipes are respectively located at two ends of the inner cavity, and the second pipe is located on the inner side surface of the inner cavity.

10. The filtration device of claim 9, wherein the ceramic membrane is mounted within the internal cavity with the second port opening facing the interior surface of the housing, and the second port opening is oriented to intersect the axis of the second conduit.