Ceramic membrane device with high filling area

Abstract

The utility model provides a ceramic membrane device with a high filling area. The ceramic membrane device comprises a barrel body (1), end sockets (2) and blocky ceramic membranes (3), the blocky ceramic membrane (3) is arranged in the cylinder body (1), and the sealing heads (2) are arranged at the two ends of the cylinder body (1); the blocky ceramic membranes (3) comprise a plurality of first blocky ceramic membranes (301) and a plurality of second blocky ceramic membranes (302); the plurality of first blocky ceramic membranes (301) are stacked, and the second blocky ceramic membranes (302) are arranged between the first blocky ceramic membranes (301) and the inner wall of the cylinder body (1). According to the utility model, the first blocky ceramic membranes are stacked into a regular shape, and then the second blocky ceramic membranes are filled between the first blocky ceramic membranes and the inner wall of the barrel, so that the space in the barrel is fully utilized through reasonable arrangement of the first blocky ceramic membranes and the second blocky ceramic membranes, and the filling area of the ceramic membranes is increased; further, the treatment capacity of the ceramic membrane device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of separation devices, specifically to a kind of ceramic membrane device, belong to liquid processing especially water treatment technical field. BACKGROUND

[0002] Water treatment refers to the physical, chemical measures taken to make water quality reach certain use standards. The purpose of water treatment is to improve water quality and meet certain water quality standards. According to the different processing methods, there are physical water treatment, chemical water treatment, biological water treatment and so on. Among them, the physical method is an absolute treatment method. Physical methods include using various filter materials with different pore sizes, using adsorption or blocking methods to exclude impurities in water. In adsorption methods, the most important one is activated carbon adsorption. The blocking method is to pass the water through the filter material, so that the impurities with larger volume cannot pass through, and then obtain relatively clean water.

[0003] In the physical treatment method, ceramic membranes are increasingly valued in the field of water treatment due to their advantages such as acid and alkali resistance, oxidation resistance, wide temperature tolerance range, and long service life. However, compared with organic hollow fiber membranes, the small packing area restricts the application of ceramic membranes. Currently, the largest single membrane area is the ceramic membrane of Japan Meidehua, with an area of 25㎡.

[0004] The patent with application number CN201610087825.0 and international patent PCT / US2016 / 012365 use the following method: Place the ceramic membrane element in the mounting ring and fix it. Use adhesive to bond the mounting ring and ceramic membrane together. Place a rubber ring around the mounting ring. Seal the ceramic membrane housing and the mounting ring with a rubber seal to prevent the ceramic membrane element from cracking due to material expansion or contraction caused by temperature changes. However, this method has the disadvantage of adding an installation ring between the ceramic membrane element and the housing, increasing the gap and reducing the packing area of the ceramic membrane. The packing area of this ceramic membrane assembly is 24.3㎡.

[0005] Prior art CN205760651U discloses a pressure-type ceramic membrane device supported by ceramic membrane sheets, wherein the ceramic membrane filter layer unit includes plate-type ceramic sheets and arc-panel ceramic sheets, both of which have an arc surface structure. Prior art CN219128872U discloses an end-sealing device for a high-filling-area ceramic membrane module, and specifically discloses that the cross-sectional shape of the ceramic membranes installed in the same ceramic membrane module has at least a first shape and a second shape, and that ceramic membranes with a second shape are installed in the gaps formed between ceramic membranes with the first shape or in the gaps formed between ceramic membranes with the first shape and the outer edge of the flower plate (2). In the solutions disclosed in the prior art, the shape of each ceramic sheet is different, which brings great difficulties to the manufacturing process and results in low product precision, thus affecting the filling area of ​​the ceramic membrane module. In addition, in the technical solutions disclosed in the prior art, the arrangement of ceramic sheets is relatively simple, which wastes space in the device and also affects the filling area of ​​the ceramic membrane module.

[0006] To maximize the filling area of ​​the ceramic membrane within the space of a device of the same specifications, thereby improving the processing capacity and efficiency of the device, is what industrialization aims to achieve. Utility Model Content

[0007] To address the technical problem of small filling area in existing ceramic membrane devices, this invention provides a ceramic membrane device with high filling area. The device includes a cylindrical body, end caps, and block ceramic membranes. The block ceramic membranes are disposed within the cylindrical body, and the end caps are located at both ends of the cylindrical body. The block ceramic membranes include multiple first block ceramic membranes and multiple second block ceramic membranes. The multiple first block ceramic membranes are stacked, and the second block ceramic membranes are disposed between the first block ceramic membranes and the inner wall of the cylindrical body. This invention, through the rational arrangement of the first and second block ceramic membranes, stacks the first block ceramic membranes into a regular shape, and then uses the second block ceramic membranes to fill the space between the first block ceramic membranes and the inner wall of the cylindrical body. This fully utilizes the space within the device, increases the filling area of ​​the ceramic membrane within the entire device, thereby improving the processing capacity and production efficiency of the ceramic membrane device during use.

[0008] According to a first embodiment of the present invention, a high-filling-area ceramic membrane device is provided.

[0009] A high-filling-area ceramic membrane device includes a cylindrical body, end caps, and block ceramic membranes. The block ceramic membranes are disposed within the cylindrical body, and the end caps are located at both ends of the cylindrical body. The block ceramic membranes include multiple first block ceramic membranes and multiple second block ceramic membranes. The multiple first block ceramic membranes are stacked, and the second block ceramic membranes are disposed between the first block ceramic membranes and the inner wall of the cylindrical body.

[0010] As preferred, the length direction of the block ceramic membrane is parallel to the cylinder. The plurality of the first block ceramic membranes have the same cross-sectional shape. The plurality of the second block ceramic membranes have the same cross-sectional shape. The cross-section of the first block ceramic membrane is isosceles trapezoidal structure, and the cross-section of the second block ceramic membrane is arc-shaped. The plurality of the first block ceramic membranes are stacked in parallel to form a regular hexagonal structure, and 6 pieces of the arc-shaped second block ceramic membranes are arranged between the first block ceramic membranes and the inner wall of the cylinder. The first block ceramic membranes and the second block ceramic membranes form a block ceramic membrane with a circular cross-section.

[0011] As preferred, the block ceramic membrane comprises n groups of the first block ceramic membranes, each group of the first block ceramic membranes comprises 2 pieces of the same first block ceramic membranes, and the cross-sectional areas of the first block ceramic membranes in different groups are not equal.

[0012] As preferred, n is 1-10, preferably 2-8, and more preferably 3-6; for example, n is 1, 2, 3, 4, 5, 6, 7, or 8.

[0013] As preferred, the length direction of the block ceramic membrane is parallel to the cylinder. The plurality of the first block ceramic membranes have the same cross-sectional shape. The plurality of the second block ceramic membranes have the same cross-sectional shape. The cross-section of the first block ceramic membrane is isosceles trapezoidal structure, and the cross-section of the second block ceramic membrane is arc-shaped. The plurality of the first block ceramic membranes are stacked in parallel to form a regular hexagonal structure, and 6 pieces of the arc-shaped second block ceramic membranes are arranged between the first block ceramic membranes and the inner wall of the cylinder. The first block ceramic membranes and the second block ceramic membranes form a block ceramic membrane with a circular cross-section.

[0014] As preferred, the block ceramic membrane comprises m groups of the first block ceramic membranes, and the cross-sectional areas of all the first block ceramic membranes are equal. Each group of the first block ceramic membranes comprises 3 pieces of the same first block ceramic membranes.

[0015] As preferred, m is 1-10, preferably 2-8, and more preferably 3-6; for example, m is 1, 2, 3, 4, 5, 6, 7, or 8.

[0016] As preferred, the length direction of the block ceramic membrane is parallel to the cylinder. The cross-section of the first block ceramic membrane is irregular parallelogram structure, and the two long sides of the irregular parallelogram structure are parallel straight lines. One of the two short sides is a straight line, and the other is an arc. The plurality of the first block ceramic membranes are stacked in three groups to form a structure with three straight sides and three arc sides, with the center of the cylinder as the center. The cross-section of the second block ceramic membrane is arc-shaped. 3 pieces of the arc-shaped second block ceramic membranes are arranged between the straight sides of the first block ceramic membranes and the inner wall of the cylinder. The first block ceramic membranes and the second block ceramic membranes form a block ceramic membrane with a circular cross-section.

[0017] As preferred, the block-shaped ceramic membranes comprise p groups of first block-shaped ceramic membranes, each group of first block-shaped ceramic membranes comprising 3 first block-shaped ceramic membranes of an irregular parallelogram structure.

[0018] As preferred, p is 1-10, preferably 2-8, more preferably 3-6; for example, p is 1, 2, 3, 4, 5, 6, 7 or 8.

[0019] As preferred, an adhesive layer is arranged between the block-shaped ceramic membranes.

[0020] As preferred, an adhesive layer is arranged between the block-shaped ceramic membranes and the cylinder.

[0021] In the utility model, the device further includes a collecting device, the collecting device is arranged at both ends of the block-shaped ceramic membrane; the collecting device is a pipe shell structure with a through hole and a hollow chamber, the through hole and the hollow chamber are independent spaces; a water purification gap is formed between the outer wall of the block-shaped ceramic membrane and the inner wall of the cylinder; the outer wall of the end of the block-shaped ceramic membrane is connected with the inner wall of the through hole, and the hollow chamber of the pipe shell structure is communicated with the water purification gap.

[0022] As preferred, the through holes of the collecting devices on both ends of the block-shaped ceramic membrane are respectively communicated to the water inlet and the concentrated water outlet; a purified water outlet is arranged on the collecting device, and the purified water outlet is communicated with the hollow chamber of the pipe shell structure.

[0023] Optionally, the end cover comprises an upper end cover and a lower end cover; the upper end cover and the lower end cover are respectively arranged at both ends of the block-shaped ceramic membrane and connected with the collecting device; the upper end cover is provided with a concentrated water outlet, and the through hole is communicated with the concentrated water outlet and the liquid outlet end of the liquid channel of the block-shaped ceramic membrane; the lower end cover is provided with a water inlet, and the through hole on the collecting device at the other end of the block-shaped ceramic membrane is communicated with the water inlet and the liquid inlet end of the liquid channel of the block-shaped ceramic membrane.

[0024] As preferred, the end cover comprises an upper end cover and a lower end cover. The upper end cover and the lower end cover are respectively arranged at both ends of the block-shaped ceramic membrane. The upper end cover is provided with a purified water outlet and a concentrated water outlet. A water purification gap is formed between the outer wall of the block-shaped ceramic membrane and the inner wall of the cylinder, and the purified water outlet is communicated with the water purification gap. The block-shaped ceramic membrane is internally provided with a liquid channel, and the concentrated water outlet is communicated with the liquid outlet end of the liquid channel.

[0025] As preferred, the lower end cover is provided with a water inlet. The water inlet is communicated with the liquid inlet end of the liquid channel.

[0026] As preferred, the device further includes a connecting device, the connecting device is arranged at both ends of the block-shaped ceramic membrane, and the connecting device is a pipe shell structure; the purified water outlet is communicated with the water purification gap through the shell channel on the connecting device; the concentrated water outlet is communicated with the liquid outlet end of the liquid channel through the pipe channel on the connecting device; and the water inlet is communicated with the liquid inlet end of the liquid channel through the pipe channel on the connecting device.

[0027] As preferred, the lower head is further provided with an air inlet.

[0028] As preferred, the device further comprises fixing devices.

[0029] As preferred, the fixing devices are clamps.

[0030] As preferred, the block-shaped ceramic membrane is provided with a filter membrane layer.

[0031] As preferred, the filter membrane layer is arranged on the inner wall of the liquid channel of the block-shaped ceramic membrane.

[0032] In the prior art, ceramic membrane devices for water treatment, ceramic membrane bundles are fixed by installation rings and then installed in a cylinder (or a shell), or are assembled into block-shaped ceramic membranes and then put into a cylinder (or a shell); there are technical problems such as small packing area, irregular shape of each block-shaped ceramic membrane, and each block-shaped ceramic membrane is not the same, which causes complex manufacturing process, low product precision, small packing area, etc., and the obtained product affects the efficiency and effect of water treatment, causing unstable treatment process.

[0033] In the utility model, the cylinder is used for containing the block-shaped ceramic membrane and collecting the clean water filtered by the block-shaped ceramic membrane.

[0034] In the utility model, by setting the ceramic membrane for filtering into a block-shaped ceramic membrane, and then reasonably distributing the block-shaped ceramic membrane with specific shape and structure in the cylinder, the packing area of the ceramic membrane in the cylinder is improved, and then the treatment capacity of the ceramic membrane device is improved.

[0035] In the utility model, the first blocky ceramic membrane can be regular trapezoidal structure, n groups of first blocky ceramic membranes can be arranged in the barrel, and each group of first blocky ceramic membranes comprises two first blocky ceramic membranes. That is to say, two first blocky ceramic membranes with the same cross section (including shape and size) can be arranged in the barrel of the utility model, the top and waist of the first blocky ceramic membrane are equal in length, and the length of the bottom of the first blocky ceramic membrane is the same as the inner diameter of the barrel. The bottom surfaces of the two first blocky ceramic membranes are coincident and stacked into a regular hexagonal structure, six second blocky ceramic membranes with the same cross section are independently arranged between the six sides of the regular hexagonal structure and the inner wall of the barrel, the second blocky ceramic membrane is in an arc structure, the chord length of the second blocky ceramic membrane in the arc structure is equal to the top of the first blocky ceramic membrane, and the curvature of the second blocky ceramic membrane in the arc structure is the same as the inner wall of the barrel. The first blocky ceramic membrane and the second blocky ceramic membrane form a blocky ceramic membrane with a circular cross section. The first blocky ceramic membrane and the second blocky ceramic membrane can be accurately manufactured in a factory, so that the packing area of the ceramic membrane in the barrel and the accuracy of the whole membrane device are improved.

[0036] In the utility model, the first blocky ceramic membrane can be regular trapezoidal structure, n groups of first blocky ceramic membranes can be arranged in the barrel, and each group of first blocky ceramic membranes comprises two first blocky ceramic membranes. That is to say, two first blocky ceramic membranes with the same cross section (including shape and size) can be arranged in the barrel of the utility model, the top and waist of the first blocky ceramic membrane are equal in length, and the length of the bottom of the first blocky ceramic membrane is the same as the inner diameter of the barrel. The bottom surfaces of the two first blocky ceramic membranes are coincident and stacked into a regular hexagonal structure, six second blocky ceramic membranes with the same cross section are independently arranged between the six sides of the regular hexagonal structure and the inner wall of the barrel, the second blocky ceramic membrane is in an arc structure, the chord length of the second blocky ceramic membrane in the arc structure is equal to the top of the first blocky ceramic membrane, and the curvature of the second blocky ceramic membrane in the arc structure is the same as the inner wall of the barrel. The first blocky ceramic membrane and the second blocky ceramic membrane form a blocky ceramic membrane with a circular cross section. The first blocky ceramic membrane and the second blocky ceramic membrane can be accurately manufactured in a factory, so that the packing area of the ceramic membrane in the barrel and the accuracy of the whole membrane device are improved.

[0037] In the utility model, the first blocky ceramic membrane can be a completely regular rhombic structure (parallelogram), and the internal angles of the first blocky ceramic membrane in the parallelogram or rhombic structure are 120° and 60° respectively. For example, the first blocky ceramic membrane is in a rhombic structure, the whole blocky ceramic membrane comprises three first blocky ceramic membranes in a rhombic structure, the largest internal angles of the three first blocky ceramic membranes in a rhombic structure coincide at the center of the cylinder, the edges of every two first blocky ceramic membranes in a rhombic structure coincide to form a regular ceramic membrane in a hexagonal structure, the edge length of the ceramic membrane in a regular hexagonal structure is equal to the edge length of the first blocky ceramic membrane in a rhombic structure. Six second blocky ceramic membranes in an arcuate structure are independently arranged between the six edges of the regular hexagonal structure and the inner wall of the cylinder, the chord length of the second blocky ceramic membrane in an arcuate structure is equal to the edge length of the first blocky ceramic membrane in a rhombic structure, and the curvature of the second blocky ceramic membrane in an arcuate structure is the same as the inner wall of the cylinder. The three first blocky ceramic membranes in a rhombic structure are regular and have the same cross section, the second blocky ceramic membranes are in the same arcuate structure, and the first blocky ceramic membrane and the second blocky ceramic membrane can be accurately manufactured in a factory, so that the packing area of the ceramic membrane in the cylinder and the precision of the whole membrane device are improved.

[0038] In the utility model, the first blocky ceramic membrane can be a completely regular polygonal structure, the blocky ceramic membrane in the cylinder includes m groups of first blocky ceramic membranes, and each group of first blocky ceramic membranes includes three first blocky ceramic membranes with the same cross-sectional shape and area. For example, the blocky ceramic membrane in the cylinder includes three, six, nine, twelve, fifteen, eighteen or twenty-one first blocky ceramic membranes. When the cylinder includes three first blocky ceramic membranes, the first blocky ceramic membranes are in a rhombic structure; when the cylinder includes six first blocky ceramic membranes, every two first blocky ceramic membranes form a rhombic structure; when the cylinder includes nine first blocky ceramic membranes, every three first blocky ceramic membranes form a rhombic structure; when the cylinder includes twelve first blocky ceramic membranes, every four first blocky ceramic membranes form a rhombic structure; and so on. The first blocky ceramic membranes with the same shape and size and with cross-sectional internal angles of 120 DEG and 60 DEG are divided into three groups, the three groups of first blocky ceramic membranes are all in a rhombic structure, and each group of first blocky ceramic membranes is composed of m first blocky ceramic membranes with the same polygonal structure. The m first blocky ceramic membranes with the polygonal structure form three rhombic structures, the largest internal angles of the three rhombic structures coincide at the center of the cylinder, the edges (i.e. the long edges of the first blocky ceramic membranes) of every two of the three rhombic structures coincide to form a regular hexagonal structure, and the edge length of the regular hexagonal structure is equal to the long edge of the first blocky ceramic membrane. Six second blocky ceramic membranes with the same cross-sectional shape are independently arranged between the six edges of the regular hexagonal structure and the inner wall of the cylinder, the second blocky ceramic membranes are in an arc structure, the chord length of the arc structure is equal to the long edge of the first blocky ceramic membrane, and the curvature of the arc structure is the same as the inner wall of the cylinder. The long edge of the first blocky ceramic membrane with the polygonal structure is equal to the short edge of the first blocky ceramic membrane with the polygonal structure multiplied by m. The three m first blocky ceramic membranes are all in a regular polygonal structure with the same cross-sectional shape, the second blocky ceramic membranes are all in an arc structure with the same shape, and the first blocky ceramic membranes and the second blocky ceramic membranes can be accurately manufactured in a factory, so that the packing area of the ceramic membrane in the cylinder and the accuracy of the whole membrane device are improved.

[0039] In the utility model, the first blocky ceramic membrane can also be a special parallelogram structure, two long sides of the special parallelogram structure are parallel straight lines. One of the two short sides is a straight line, and the other is an arc. Three straight sides of the first blocky ceramic membrane of the special parallelogram structure form a large internal angle (120°) and a small internal angle (60°). The blocky ceramic membrane can include p groups of the first blocky ceramic membrane of the special parallelogram structure, and each group of the first blocky ceramic membrane includes three first blocky ceramic membranes of the special parallelogram structure. For example, the blocky ceramic membrane includes one group (three pieces) of the first blocky ceramic membrane of the special parallelogram structure, and the three first blocky ceramic membranes of the special parallelogram structure each include three straight sides and an arc-shaped side; the three straight sides are equal in length, the chord length of the arc-shaped side is equal to the length of the straight side, the three straight sides and the chord of the arc-shaped side form a rhombus, the curvature of the arc-shaped side is the same as the inner wall of the cylinder, and the three first blocky ceramic membranes of the special parallelogram structure together form a special hexagonal structure including three straight sides and three arc-shaped sides; and the chords of the three straight sides and the three arc-shaped sides together form a regular hexagonal structure. The blocky ceramic membrane includes multiple groups (3p pieces) of the first blocky ceramic membrane of the special parallelogram structure, the multiple groups (3p pieces) of the first blocky ceramic membrane of the special parallelogram structure are divided into three parts on average, each part includes p pieces of the first blocky ceramic membrane of the special parallelogram structure, and the p pieces of the first blocky ceramic membrane of the special parallelogram structure are stacked along the long straight side to form a special rhombus structure; the special rhombus structure includes three straight sides and one arc-shaped side, the chords of the three straight sides and the arc-shaped side form a rhombus structure, and the three rhombus structures together form the special rhombus ceramic membrane as described above (the chords of the three straight sides and the arc-shaped side of each special rhombus structure form a rhombus structure). The ceramic membranes of the three special rhombus structures together form a special hexagonal structure, and the chords of the three straight sides and the three arc-shaped sides of the special hexagonal structure form a regular hexagonal structure. The largest internal angles of the ceramic membranes of the three special rhombus structures coincide at the center of the cylinder, the straight sides of every two first blocky ceramic membranes of the three special rhombus structures coincide to form a ceramic membrane of a hexagonal structure, the straight side length of the ceramic membrane of the hexagonal structure is equal to the straight side length of the first blocky ceramic membrane of the special rhombus structure, and the chord length of the arc-shaped side of the ceramic membrane of the hexagonal structure is equal to the straight side length of the first blocky ceramic membrane of the special rhombus structure. Three arc-shaped sides of the six sides of the hexagonal structure directly adhere to the inner wall of the cylinder, three second blocky ceramic membranes having the same cross section are independently arranged between the three straight sides and the inner wall of the cylinder, the second blocky ceramic membrane is an arc structure, the chord length of the second blocky ceramic membrane of the arc structure is equal to the straight side length of the first blocky ceramic membrane of the special rhombus structure, the curvature of the second blocky ceramic membrane of the arc structure is the same as the inner wall of the cylinder, and the arc length of the second blocky ceramic membrane of the arc structure is equal to the arc-shaped side length of the special rhombus structure.3The first blocky ceramic membrane looks like a special-shaped structure, but they are all the same shape, and are regular and have the same cross-sectional special-shaped rhombus structure, the second blocky ceramic membrane is the same shape of the arch structure, and the first blocky ceramic membrane and the second blocky ceramic membrane can be accurately manufactured by the factory, so that the packing area of the ceramic membrane in the cylinder and the precision of the whole membrane device are improved.

[0040] In the utility model, the first blocky ceramic membrane can be a plurality of special-shaped parallelogram structures, the blocky ceramic membrane in the cylinder includes p groups of first blocky ceramic membranes, and each group of first blocky ceramic membranes includes three first blocky ceramic membranes with the same cross-sectional shape. For example, the blocky ceramic membrane in the cylinder includes 3, 6, 9, 12, 15, 18 or 21 first blocky ceramic membranes. When the cylinder includes three first blocky ceramic membranes, the first blocky ceramic membrane is a special-shaped rhombus structure; when the cylinder includes six first blocky ceramic membranes, every two first blocky ceramic membranes form a special-shaped rhombus structure; when the cylinder includes nine first blocky ceramic membranes, every three first blocky ceramic membranes form a special-shaped rhombus structure; when the cylinder includes twelve first blocky ceramic membranes, every four first blocky ceramic membranes form a special-shaped rhombus structure; and so on. The first blocky ceramic membranes with the same shape of the special-shaped parallelogram shape formed by the inner angle of three straight edges in the cross section of the first blocky ceramic membrane are 120 DEG and 60 DEG respectively, and the first blocky ceramic membranes are divided into three groups; the three groups of first blocky ceramic membranes are all special-shaped rhombus structures, and each group of first blocky ceramic membranes is composed of p first blocky ceramic membranes with the special-shaped parallelogram shape. The p first blocky ceramic membranes with the special-shaped parallelogram shape form three special-shaped rhombus structures of ceramic membranes, the maximum inner angle of the three special-shaped rhombus structures of ceramic membranes coincides at the center of the cylinder, the edges (i.e. the long edges of the first blocky ceramic membranes) of every two of the three special-shaped rhombus structures of ceramic membranes coincide, form a special-shaped regular hexagonal structure of ceramic membrane, and the edge length of the special-shaped regular hexagonal structure of ceramic membrane is equal to the long edge length of the first blocky ceramic membrane. The long edge length of the first blocky ceramic membrane with the special-shaped parallelogram shape is equal to the chord length of the arc edge of the first blocky ceramic membrane with the special-shaped parallelogram shape.

[0041] In the utility model, the blocky ceramic membranes can be provided with an adhesive layer, a plurality of first blocky ceramic membranes form a trapezoidal structure, a rhombus structure or a special-shaped rhombus structure of ceramic membrane blocks through the adhesive layer, then two trapezoidal structure ceramic membrane blocks and six second blocky ceramic membranes with the arch structure, or three rhombus structure ceramic membrane blocks and six second blocky ceramic membranes with the arch structure, or three special-shaped rhombus structure ceramic membrane blocks and three second blocky ceramic membranes with the arch structure form the whole blocky ceramic membrane with the circular shape through the adhesive layer.

[0042] In the utility model, the outer wall of the blocky ceramic membrane and the cylinder can be provided with an adhesive layer for fixing the blocky ceramic membrane.

[0043] In the utility model, through selecting the first blocky ceramic membrane and the second blocky ceramic membrane with characteristic shape and structure to jointly constitute the circular blocky ceramic membrane, the circular blocky ceramic membrane is attached to the inner wall of the cylinder, the first blocky ceramic membrane and the second blocky ceramic membrane are closely arranged in the liquid flow channel, and the first blocky ceramic membrane and the second blocky ceramic membrane are closely arranged in the cylinder, thereby improving the membrane packing area of the whole device. The packing area of the single membrane assembly assembled by the technical scheme of the utility model can reach more than 30 square meters.

[0044] In the utility model, the first blocky ceramic membrane can be composed of 2 groups of trapezoidal structures (each group of trapezoidal structures is composed of one trapezoidal structure ceramic membrane or each group of trapezoidal structures is composed of multiple trapezoidal structure ceramic membranes to form a large trapezoidal structure), 3 groups of rhombic structures (each group of rhombic structures is composed of one rhombic structure ceramic membrane or each group of rhombic structures is composed of multiple parallelogram structure ceramic membranes to form a large rhombic structure), 3 groups of special rhombic structures (each group of special rhombic structures is composed of one special rhombic structure ceramic membrane or each group of special rhombic structures is composed of multiple special parallelogram structure ceramic membranes to form a large special rhombic structure).

[0045] In the utility model, no matter which structure form of the first blocky ceramic membrane is adopted, the second blocky ceramic membrane is an arch structure with the same structure and the same cross section, and the number is 3 or 6. When the first blocky ceramic membrane with the trapezoidal structure or the parallelogram (or rhombic) structure is selected, 6 second blocky ceramic membranes are selected; when the first blocky ceramic membrane with the special parallelogram (or special rhombic) structure is selected, 3 second blocky ceramic membranes are selected.

[0046] In the utility model, the packing area of the single membrane assembly is improved by adjusting the shape and arrangement of the blocky ceramic membrane. The head, the collecting device, the connecting device and the fixing device can all adopt the design in the prior art or the components commercially available in the prior art.

[0047] In the utility model, the head can be connected to the collecting device, the water inlet is arranged on the lower head, the concentrated water outlet is arranged on the upper head, and the collecting device is provided with a clean water outlet. The water to be purified enters the water inlet end of the liquid flow channel of the blocky ceramic membrane (according to the water flow direction), is separated by the blocky ceramic membrane, the clean water enters the clean water gap, and the concentrated water stays in the liquid flow channel. The clean water is discharged through the clean water outlet on the collecting device, and the concentrated water is discharged through the concentrated water outlet on the upper head after passing through the through hole. The collecting device comprises a hollow chamber for clean water flow and a through hole for concentrated water flow.

[0048] In the utility model, the upper head and the lower head are fixed with the cylinder through a fixing device, and the fixing device can be glue, bolts, clamps and the like, as long as it can play a fixing role.

[0049] As preferred, the ceramic membrane device of the utility model is designed as a pressurized type (or an external pressure type), and the lower head is further provided with an air inlet, which is communicated with the clean water gap or the liquid channel.

[0050] In the utility model, the upper head and the lower head are fixed with the cylinder through a fixing device, and the fixing device can be glue, bolts, clamps and the like, as long as it can play a fixing role.

[0051] In the utility model, the block-shaped ceramic membrane can have a filtering function by itself, or a filtering membrane layer can be arranged on the inner wall of the liquid channel of the block-shaped ceramic membrane to play a filtering role.

[0052] In the utility model, the block-shaped ceramic membrane is a liquid filtering part, and the shell is a collecting container for liquid filtered by the ceramic membrane.

[0053] In the utility model, the cylinder material is UPVC, CPVC or other plastic material, and the expansion coefficient is close to the binder. The binder is not limited, and is the binder commonly used in the prior art; for example: flexible epoxy resin, flexible polyurethane or composite material of both.

[0054] Compared with the prior art, the technical scheme provided by the utility model has the following beneficial technical effects:

[0055] 1. The ceramic membrane device provided by the utility model changes the arrangement mode of the ceramic membrane in the cylinder, improves the packing area of the single membrane assembly for the same size of the cylinder, thus provides a larger area of the liquid flow channel, and further improves the treatment capacity of the whole device for water treatment.

[0056] 2. The utility model skillfully adopts the block-shaped ceramic membrane, and utilizes the reasonable distribution of the independent block-shaped ceramic membrane, thus saves the mounting ring and other components in the existing product, makes more sufficient use of the space in the cylinder, and further improves the packing area of the single membrane assembly.

[0057] 3. The ceramic membrane device provided by the utility model adopts the independent first block-shaped ceramic membrane and the second block-shaped ceramic membrane, the first block-shaped ceramic membrane and the second block-shaped ceramic membrane can be factory-made according to the size of the cylinder, the manufacturing precision of the independent first block-shaped ceramic membrane and the second block-shaped ceramic membrane is improved, the first block-shaped ceramic membrane and the second block-shaped ceramic membrane factory-made are directly assembled to obtain the water treatment device, the stability of the device is ensured, the device with stable performance is used for water treatment, the stability of water treatment is further ensured, and thus the quality of the treated water is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0058] Figure 1 It is a high packing area ceramic membrane device assembly structure diagram of the utility model.

[0059] Figure 2 It is a second high packing area ceramic membrane device assembly structure diagram of the utility model.

[0060] Figure 3 It is Figure 1 It is an A-A interface diagram, wherein the block-shaped ceramic membrane is composed of 2 first block-shaped ceramic membranes with the same isosceles trapezoidal structure in the cross section, and 6 second block-shaped ceramic membranes with the same arch structure in the cross section.

[0061] Figure 4 It is Figure 1 It is an A-A interface diagram, wherein the block-shaped ceramic membrane is composed of 4 first block-shaped ceramic membranes with the isosceles trapezoidal structure in the cross section, and 6 second block-shaped ceramic membranes with the same arch structure in the cross section.

[0062] Figure 5For Figure 1 A-A interface diagram, wherein the bulk ceramic membrane is composed of 6 pieces of first bulk ceramic membrane with isosceles trapezoidal cross section, 6 pieces of second bulk ceramic membrane with same cross section in arch structure.

[0063] Figure 6 For Figure 1 A-A interface diagram, wherein the bulk ceramic membrane is composed of 8 pieces of first bulk ceramic membrane with isosceles trapezoidal cross section, 6 pieces of second bulk ceramic membrane with same cross section in arch structure.

[0064] Figure 7 For Figure 1 A-A interface diagram, wherein the bulk ceramic membrane is composed of 10 pieces of first bulk ceramic membrane with isosceles trapezoidal cross section, 6 pieces of second bulk ceramic membrane with same cross section in arch structure.

[0065] Figure 8 For Figure 1 A-A interface diagram, wherein the bulk ceramic membrane is composed of 3 pieces of first bulk ceramic membrane with same rhombus cross section, 6 pieces of second bulk ceramic membrane with same cross section in arch structure.

[0066] Figure 9 For Figure 1 A-A interface diagram, wherein the bulk ceramic membrane is composed of 6 pieces of first bulk ceramic membrane with same parallelogram cross section (wherein every two parallelograms form a rhombus), 6 pieces of second bulk ceramic membrane with same cross section in arch structure.

[0067] Figure 10 For Figure 1 A-A interface diagram, wherein the bulk ceramic membrane is composed of 9 pieces of first bulk ceramic membrane with same parallelogram cross section (wherein every three parallelograms form a rhombus), 6 pieces of second bulk ceramic membrane with same cross section in arch structure.

[0068] Figure 11 For Figure 1 A-A interface diagram, wherein the bulk ceramic membrane is composed of 12 pieces of first bulk ceramic membrane with same parallelogram cross section (wherein every four parallelograms form a rhombus), 6 pieces of second bulk ceramic membrane with same cross section in arch structure.

[0069] Figure 12 For Figure 1 A-A interface diagram, wherein the bulk ceramic membrane is composed of 15 pieces of first bulk ceramic membrane with same parallelogram cross section (wherein every five parallelograms form a rhombus), 6 pieces of second bulk ceramic membrane with same cross section in arch structure.

[0070] Figure 13 For Figure 1 A-A interface diagram in the middle, wherein the bulk ceramic membrane is composed of 3 pieces of first bulk ceramic membrane with the same cross-section of special-shaped parallelogram structure (wherein every two pieces of special-shaped parallelogram form a special-shaped rhombus), 3 pieces of second bulk ceramic membrane with the same cross-section of arch structure.

[0071] Figure 14 For Figure 1 A-A interface diagram in the middle, wherein the bulk ceramic membrane is composed of 6 pieces of first bulk ceramic membrane with the same cross-section of special-shaped parallelogram structure (wherein every two pieces of special-shaped parallelogram form a special-shaped rhombus), 3 pieces of second bulk ceramic membrane with the same cross-section of arch structure.

[0072] Figure 15 For Figure 1 A-A interface diagram in the middle, wherein the bulk ceramic membrane is composed of 9 pieces of first bulk ceramic membrane with the same cross-section of special-shaped parallelogram structure (wherein every three pieces of special-shaped parallelogram form a special-shaped rhombus), 3 pieces of second bulk ceramic membrane with the same cross-section of arch structure.

[0073] Figure 16 For Figure 1 A-A interface diagram in the middle, wherein the bulk ceramic membrane is composed of 12 pieces of first bulk ceramic membrane with the same cross-section of special-shaped parallelogram structure (wherein every four pieces of special-shaped parallelogram form a special-shaped rhombus), 3 pieces of second bulk ceramic membrane with the same cross-section of arch structure.

[0074] Figure 17 For Figure 1 A-A interface diagram in the middle, wherein the bulk ceramic membrane is composed of 6 pieces of first bulk ceramic membrane with the same cross-section of special-shaped parallelogram structure (wherein every five pieces of special-shaped parallelogram form a special-shaped rhombus), 3 pieces of second bulk ceramic membrane with the same cross-section of arch structure.

[0075] Figure 18 The arrangement mode adopted by Comparative Example 1.

[0076] Figure 19 The arrangement mode adopted by Comparative Example 2.

[0077] Figure 20 The arrangement mode adopted by Comparative Example 3.

[0078] Reference signs:

[0079] 1: cylinder; 101: collecting device; 102: connecting device; 2: head; 201: upper head; 202: lower head; 3: block ceramic membrane; 301: first block ceramic membrane; 302: second block ceramic membrane; 4: clean water outlet; 5: concentrated water outlet; 6: water inlet; 7: air inlet; 8: fixing device. DETAILED DESCRIPTION

[0080] The technical solutions of the present application are illustrated below, and the scope of protection requested by the present application includes but is not limited to the following embodiments.

[0081] Embodiment 1

[0082] As shown in Figure 1 , a high packing area ceramic membrane device, the device includes a cylinder, a head and a block ceramic membrane. The block ceramic membrane is arranged in the cylinder, and the head is arranged at both ends of the cylinder. The block ceramic membrane includes a plurality of first block ceramic membranes and a plurality of second block ceramic membranes. The plurality of first block ceramic membranes are arranged in a stack, and the second block ceramic membranes are arranged between the first block ceramic membranes and the inner wall of the cylinder.

[0083] Embodiment 2

[0084] As shown in Figure 1 and Figure 3 , a high packing area ceramic membrane device, the device includes a cylinder, a head and a block ceramic membrane. The block ceramic membrane is arranged in the cylinder, and the head is arranged at both ends of the cylinder. The length direction of the block ceramic membrane is parallel to the cylinder. The block ceramic membrane includes a group of first block ceramic membranes (2 first block ceramic membranes) and 6 second block ceramic membranes. The cross section of the 2 first block ceramic membranes is a completely identical isosceles trapezoidal structure, the length of the top and the waist of the first block ceramic membrane is equal, and the length of the bottom of the first block ceramic membrane is the same as the inner diameter of the cylinder. The 6 second block ceramic membranes have the same cross-sectional arcuate structure, and the curvature of the arcuate structure of the second block ceramic membrane is the same as the curvature of the cylinder 1. The bottoms of the 2 first block ceramic membranes are stacked in a regular hexagonal structure, and the 6 arcuate structure second block ceramic membranes are arranged between the first block ceramic membranes and the inner wall of the cylinder. The first block ceramic membrane and the second block ceramic membrane form a block ceramic membrane with a circular cross section.

[0085] Embodiment 3

[0086] As shown in Figure 4As shown, Embodiment 2 is repeated, except that the block ceramic membrane includes two sets of first block ceramic membranes (four first block ceramic membranes) and six second block ceramic membranes. Each set of first block ceramic membranes has an identical isosceles trapezoidal cross-section. The cross-sectional area of ​​the first set of first block ceramic membranes is smaller than that of the second set. The length of the base of the first set of first block ceramic membranes is the same as the length of the top of the second set. The length of the base of the second set of first block ceramic membranes is the same as the inner diameter of the inner cylinder. The length of the waist of the first set of first block ceramic membranes is equal to the length of the waist of the second set. The length of the top of the first set of first block ceramic membranes is twice the length of the waist of the first block ceramic membrane. The four first block ceramic membranes are stacked together to form a regular hexagonal structure.

[0087] Example 4

[0088] like Figure 5 As shown, Embodiment 2 is repeated, except that the block ceramic membrane includes 3 sets of first block ceramic membranes (6 first block ceramic membranes) and 6 second block ceramic membranes. The cross-section of each set of first block ceramic membranes is an identical isosceles trapezoidal structure, and the length of the waists of each set of first block ceramic membranes is equal. The cross-sectional area of ​​the first set of first block ceramic membranes < the cross-sectional area of ​​the second set of first block ceramic membranes < the cross-sectional area of ​​the third set of first block ceramic membranes. The length of the bottom of the first set of first block ceramic membranes is the same as the length of the top of the second set of first block ceramic membranes, and the length of the bottom of the second set of first block ceramic membranes is the same as the length of the top of the third set of first block ceramic membranes. The length of the top of the first set of first block ceramic membranes is equal to 3 times the length of the waists of the first block ceramic membranes. The length of the bottom of the third set of first block ceramic membranes is the same as the inner diameter of the inner cylinder. The bottoms of the 6 first block ceramic membranes are stacked overlapping to form a regular hexagonal structure.

[0089] Example 5

[0090] like Figure 6As shown, Embodiment 2 is repeated, except that the block ceramic membrane includes 4 groups of first block ceramic membranes (8 first block ceramic membranes) and 6 second block ceramic membranes. The cross-section of each group of first block ceramic membranes is an identical isosceles trapezoidal structure, and the length of the waists of each group of first block ceramic membranes is equal. The cross-sectional area of ​​the first group of first block ceramic membranes < the cross-sectional area of ​​the second group of first block ceramic membranes < the cross-sectional area of ​​the third group of first block ceramic membranes < the cross-sectional area of ​​the fourth group of first block ceramic membranes. The length of the bottom of the first group of first block ceramic membranes is the same as the length of the top of the second group of first block ceramic membranes; the length of the bottom of the second group of first block ceramic membranes is the same as the length of the top of the third group of first block ceramic membranes; and the length of the bottom of the third group of first block ceramic membranes is the same as the length of the top of the fourth group of first block ceramic membranes. The length of the top of the first group of first block ceramic membranes is equal to 4 times the length of the waist of the first block ceramic membrane. The length of the bottom of the fourth group of first block ceramic membranes is the same as the inner diameter of the inner cylinder. The bottoms of the 8 first block ceramic membranes are stacked overlapping to form a regular hexagonal structure.

[0091] Example 6

[0092] like Figure 7 As shown, Example 2 is repeated, except that the block ceramic membrane includes 5 groups of first block ceramic membranes (10 first block ceramic membranes) and 6 second block ceramic membranes. The cross-section of each group of first block ceramic membranes is an identical isosceles trapezoidal structure, and the length of the waists of each group of first block ceramic membranes is equal. The cross-sectional area of ​​the first group of first block ceramic membranes < the cross-sectional area of ​​the second group of first block ceramic membranes < the cross-sectional area of ​​the third group of first block ceramic membranes < the cross-sectional area of ​​the fourth group of first block ceramic membranes < the cross-sectional area of ​​the fifth group of first block ceramic membranes; the length of the bottom of the first group of first block ceramic membranes is the same as the length of the top of the second group of first block ceramic membranes; the length of the bottom of the second group of first block ceramic membranes is the same as the length of the top of the third group of first block ceramic membranes; the length of the bottom of the third group of first block ceramic membranes is the same as the length of the top of the fourth group of first block ceramic membranes; and the length of the bottom of the fourth group of first block ceramic membranes is the same as the length of the top of the fifth group of first block ceramic membranes. The length of the top of the first group of first block ceramic membranes is equal to 5 times the length of the waist of the first block ceramic membrane. The length of the bottom of the first block ceramic membrane in the fifth group is the same as the inner diameter of the inner cylinder. The bottoms of the 10 first block ceramic membranes are stacked in a regular hexagonal structure.

[0093] Example 7

[0094] like Figure 1 and Figure 8As shown, a high-filling-area ceramic membrane device includes a cylinder, end caps, and block ceramic membranes. The block ceramic membranes are disposed within the cylinder, and the end caps are located at both ends of the cylinder. The length direction of the block ceramic membranes is parallel to the cylinder. The block ceramic membranes include one group of first block ceramic membranes (3 first block ceramic membranes) and six second block ceramic membranes. The three first block ceramic membranes have the same rhomboid (specifically parallelogram) cross-section, with interior angles of 120° and 60°, and all four sides being equal in length, hence the rhomboid structure. The six second block ceramic membranes have the same arc-shaped cross-section, with the arc of the arc-shaped second block ceramic membranes matching the arc of the cylinder. The three first block ceramic membranes are stacked in three groups (with one corner of the parallelogram overlapping, resembling a fan blade) around the center of the cylinder, forming a regular hexagonal structure. The six arc-shaped second block ceramic membranes are disposed between the first block ceramic membranes and the inner wall of the cylinder. The first and second block ceramic membranes together form a block ceramic membrane with a circular cross-section.

[0095] Example 8

[0096] like Figure 9 As shown, Example 7 is repeated, except that the block ceramic membrane includes two sets of first block ceramic membranes (6 first block ceramic membranes) and 6 second block ceramic membranes. All the first block ceramic membranes have identical parallelogram cross-sections, with interior angles of 120° and 60°. The length of the longer side of the parallelogram is twice the length of the shorter side. The 6 first block ceramic membranes are stacked in pairs to form a rhombus, resulting in a total of 3 rhombus structures. These 3 rhombus structures are then stacked around the center of the cylinder in three groups (two parallelograms stacked in parallel, with one corner of the stacked ceramic membrane overlapping, resembling a fan blade) to form a regular hexagonal structure.

[0097] Example 9

[0098] like Figure 10 As shown, Example 7 is repeated, except that the block ceramic membrane includes 3 groups of first block ceramic membranes (9 first block ceramic membranes) and 6 second block ceramic membranes. All the first block ceramic membranes have identical parallelogram cross-sections, with interior angles of 120° and 60°. The length of the longer side of the parallelogram is three times the length of the shorter side. Three of the 9 first block ceramic membranes are stacked to form a rhombus, resulting in a total of 3 rhombus structures. These 3 rhombus structures are then stacked in three groups (three parallelograms stacked in parallel, with one corner of the stacked ceramic membrane overlapping, resembling a fan blade) around the center of the cylinder, forming a regular hexagonal structure.

[0099] Example 10

[0100] likeFigure 11 As shown, Example 7 is repeated, except that the block ceramic membrane includes 4 groups of first block ceramic membranes (12 first block ceramic membranes) and 6 second block ceramic membranes. All the first block ceramic membranes have identical parallelogram cross-sections, with interior angles of 120° and 60°. The length of the longer side of the parallelogram is 4 times the length of the shorter side. Four of the 12 first block ceramic membranes are stacked to form a rhombus, resulting in a total of 3 rhombus structures. These 3 rhombus structures are then stacked in three groups (three parallelograms stacked in parallel, with one corner of the stacked ceramic membrane overlapping, resembling a fan blade) around the center of the cylinder, forming a regular hexagonal structure.

[0101] Example 11

[0102] like Figure 12 As shown, Example 7 is repeated, except that the block ceramic membrane includes 5 groups of first block ceramic membranes (15 first block ceramic membranes) and 6 second block ceramic membranes. All the first block ceramic membranes have identical parallelogram cross-sections, with interior angles of 120° and 60°. The length of the longer side of the parallelogram is 5 times the length of the shorter side. Five of the 15 first block ceramic membranes are stacked to form a rhombus, resulting in a total of 3 rhombus structures. These 3 rhombus structures are then stacked in three groups (three parallelograms stacked in parallel, with one corner of the stacked ceramic membrane overlapping, resembling a fan blade) around the center of the cylinder, forming a regular hexagonal structure.

[0103] Example 12

[0104] like Figure 1 and Figure 13As shown, a high-filling-area ceramic membrane device includes a cylinder, end caps, and block ceramic membranes. The block ceramic membranes are disposed within the cylinder, and the end caps are located at both ends of the cylinder. The length direction of the block ceramic membranes is parallel to the cylinder. The block ceramic membranes include one set of first block ceramic membranes (3 first block ceramic membranes) and three second block ceramic membranes. The cross-section of the three first block ceramic membranes is an irregular parallelogram structure. The irregular parallelogram structure includes two parallel straight sides, one of which is a straight line, and the other is an arc (the chord corresponding to the arc side forms a rhombus with interior angles of 60° and 120° with the three straight sides). The length of the straight side is equal to the chord length of the arc side. The maximum interior angle of the irregular parallelogram structure is 120°. The three second block ceramic membranes have the same cross-sectional arc-shaped structure, and the arc of the arc-shaped second block ceramic membrane is the same as the arc of the cylinder. The three first-piece ceramic membranes are stacked in three groups around the center of the cylinder (the largest interior angles of the irregular parallelograms overlap, resembling fan blades, with overlapping straight sides), forming a structure with three straight sides and three curved sides (the three curved sides and the three straight sides form a regular hexagonal structure). The three second-piece ceramic membranes with the aforementioned arc-shaped structure are positioned between the straight sides of the first-piece ceramic membranes and the inner wall of the cylinder. The first and second-piece ceramic membranes together form a circular cross-section ceramic membrane.

[0105] Example 13

[0106] like Figure 14 As shown, Example 12 is repeated, except that the block ceramic membrane includes two sets of first block ceramic membranes (6 first block ceramic membranes) and three second block ceramic membranes. All the first block ceramic membranes have identical cross-sections of irregular parallelograms, with a maximum interior angle of 120°. The lengths of the two parallel long sides of the irregular parallelogram are twice the length of one short side, and also twice the chord length of the arc of the irregular parallelogram. The six first-piece ceramic membranes are stacked in pairs to form an irregular rhombus (three sides are straight lines, one side is an arc, and the chord corresponding to the arc side and the three straight lines form a rhombus with interior angles of 60° and 120° respectively). A total of three irregular rhombus structures are stacked. The three irregular rhombus structure ceramic membranes are stacked in three groups around the center of the cylinder (two irregular parallelograms are stacked in parallel, and after stacking, the ceramic membranes overlap at the largest interior angle, forming the shape of a fan blade) to form an irregular hexagonal structure (three arc sides and three straight lines form a regular hexagonal structure).

[0107] Example 14

[0108] like Figure 15As shown, Example 12 is repeated, except that the block ceramic membrane includes 3 sets of first block ceramic membranes (9 first block ceramic membranes) and 3 second block ceramic membranes. All the first block ceramic membranes have an irregular parallelogram cross-section, with a maximum interior angle of 120°. The lengths of the two parallel long sides of the irregular parallelogram are three times the length of one short side, and also three times the chord length of the arc of the irregular parallelogram. Nine first-piece ceramic membranes are stacked in groups of three to form an irregular rhombus (three sides are straight lines, one side is an arc, and the chord corresponding to the arc side and the three straight sides form a rhombus with interior angles of 60° and 120° respectively). A total of three irregular rhombus structures are stacked. The three irregular rhombus structure ceramic membranes are stacked in three groups around the center of the cylinder (three irregular parallelograms with their long straight sides overlapping and stacked in parallel, and after stacking, the largest interior angle formed by the straight sides of the ceramic membranes overlaps, forming the shape of a fan blade) to form an irregular hexagonal structure (three arc sides and three straight sides form a regular hexagonal structure).

[0109] Example 15

[0110] like Figure 16 As shown, Example 12 is repeated, except that the block ceramic membrane includes 4 groups of first block ceramic membranes (12 first block ceramic membranes) and 3 second block ceramic membranes. All the first block ceramic membranes have an irregular parallelogram cross-section, with a maximum interior angle of 120°. The length of the two parallel long sides of the irregular parallelogram is four times the length of one short side, and also four times the chord length of the arc of the irregular parallelogram. The 12 first-piece ceramic membranes are stacked in groups of four to form an irregular rhombus (three sides are straight lines, one side is an arc, and the chord corresponding to the arc side and the three straight sides form a rhombus with interior angles of 60° and 120° respectively). A total of 3 irregular rhombus structures are stacked. The 3 irregular rhombus structure ceramic membranes are stacked in three groups around the center of the cylinder (four irregular parallelograms with their long straight sides overlapping and stacked in parallel, and after stacking, the largest interior angle formed by the straight sides of the ceramic membranes overlaps, forming the shape of a fan blade) to form an irregular hexagonal structure (three arc sides and three straight sides form a regular hexagonal structure).

[0111] Example 16

[0112] like Figure 17As shown, Example 12 is repeated, except that the block ceramic membrane comprises 5 groups of first block ceramic membranes (15 first block ceramic membranes) and 3 second block ceramic membranes. The cross section of all the first block ceramic membranes is a structure of irregular parallelogram with the largest internal angle of 120°. The length of the two parallel long sides of the irregular parallelogram is 5 times the length of a short side of the irregular parallelogram, and is also 5 times the chord length of the arc of the irregular parallelogram. The 15 first block ceramic membranes are stacked in an irregular rhombus (three straight lines and one arc line, the chord corresponding to the arc line forms a rhombus with the three straight lines with internal angles of 60° and 120°, respectively) every five pieces, and a total of three irregular rhombus structures are stacked, and the three irregular rhombus structures are stacked in a hexagonal structure (three arc lines and three straight lines form a regular hexagonal structure) with the center of the cylinder as the center and in three groups (the long sides of the five irregular parallelograms are stacked in parallel, and the largest internal angle formed by the straight lines of the ceramic membranes is overlapped after stacking, in the form of a fan leaf).

[0113] Example 17

[0114] Example 2 is repeated, except that an adhesive layer is provided between the block ceramic membranes.

[0115] Example 18

[0116] Example 7 is repeated, except that an adhesive layer is provided between the block ceramic membranes and the cylinder.

[0117] Example 19

[0118] As Figure 2As shown, repeating embodiment 18, the device further includes a collecting device 101, which is disposed at both ends of the block ceramic membrane 3; the collecting device 101 is a shell structure with a through hole and a hollow chamber, the through hole and the hollow chamber being independent spaces; a clean water gap is formed between the outer wall of the block ceramic membrane 3 and the inner wall of the cylinder 1; the outer wall of the end of the block ceramic membrane 3 is connected to the inner wall of the through hole, and the hollow chamber of the shell structure is connected to the clean water gap; the through holes of the collecting device 101 at both ends of the block ceramic membrane 3 are respectively connected to the water inlet and the concentrated water outlet; the collecting device 101 is provided with a clean water outlet 4, which is connected to the hollow chamber of the shell structure. The end cap 2 includes an upper end cap 201 and a lower end cap 202; the upper end cap 201 and the lower end cap 202 are respectively disposed at both ends of the block ceramic membrane 3 and connected to the collecting device 101; the upper end cap 201 is provided with a concentrate outlet 5, and a through hole connects the concentrate outlet 5 and the liquid outlet end of the liquid channel of the block ceramic membrane 3; the lower end cap 202 is provided with a water inlet 6, and a through hole on the collecting device 101 at the other end of the block ceramic membrane 3 connects the water inlet 6 and the liquid inlet end of the liquid channel of the block ceramic membrane 3. The device also includes a fixing device. The fixing device is used to fix the upper end cap and the collecting device, and the lower end cap and the collecting device. The fixing device is a clamp.

[0119] Example 20

[0120] The method repeats Example 18, except that the end caps include an upper end cap and a lower end cap. The upper and lower end caps are respectively located at both ends of the block ceramic membrane. The upper end cap has a purified water outlet and a concentrated water outlet. A purified water gap is formed between the inner wall of the block ceramic membrane and the outer wall of the cylinder, and the purified water outlet communicates with the purified water gap. A liquid channel is provided inside the block ceramic membrane, and the concentrated water outlet communicates with one end (liquid outlet) of the liquid channel. A water inlet is provided on the lower end cap. The water inlet communicates with the other end (liquid inlet) of the liquid channel. The device also includes a fixing device. The fixing device is used to fix the upper end cap and the cylinder, and the lower end cap and the cylinder, respectively. The fixing device is a clamp.

[0121] Example 21

[0122] The same method is used in embodiment 20, except that the device also includes a connecting device 102, which is disposed at both ends of the block ceramic membrane 3 and has a shell-and-tube structure. The purified water outlet 4 is connected to the purified water gap through the shell side of the connecting device 102. The concentrated water outlet 5 is connected to the liquid outlet end of the liquid channel through the tube side of the connecting device 102. The water inlet 6 is connected to the liquid inlet end of the liquid channel through the tube side of the connecting device 102.

[0123] Example 22

[0124] Repeat Example 19, except that an air inlet is also provided on the lower end cap. The air inlet is connected to the gap between the air inlet and the purified water.

[0125] Example 23

[0126] The same method as Example 19 is used, except that an air inlet is also provided on the lower end cap. The air inlet is connected to the liquid channel.

[0127] Example 24

[0128] Example 20 is repeated, except that a filter membrane layer is provided on the bulk ceramic membrane. The filter membrane layer is disposed on the inner wall of the liquid channel of the bulk ceramic membrane.

[0129] Comparative Example 1

[0130] like Figure 18 As shown, a ceramic membrane device includes a cylinder, an end cap, and a ceramic membrane. The ceramic membrane is a bundle of multiple parallel liquid channels.

[0131] Comparative Example 2

[0132] like Figure 19 As shown, a ceramic membrane device includes a cylindrical body, an end cap, and a block ceramic membrane. The arrangement of the block ceramic membrane is described in CN205760651U. Figure 1 As shown.

[0133] Comparative Example 3

[0134] like Figure 20 As shown, a ceramic membrane device includes a cylindrical body, a head, and a block ceramic membrane. The arrangement of the block ceramic membrane is described in CN219128872U. Figure 4 As shown.

[0135] Application Examples

[0136] A cylindrical body with an inner diameter of 235 mm was used. The inner diameter of the liquid flow channel inside the ceramic membrane was 2.33 mm, and the length of the ceramic membrane was 1500 mm. The ceramic membranes were assembled using the arrangement methods described in Examples 2-16 and Comparative Examples 1-3 to obtain ceramic membrane devices with the same external dimensions and the same inner diameter of each individual liquid flow channel. The filling area of ​​a single membrane module was calculated based on the number of liquid flow channels in the ceramic membrane inside the cylindrical body, and the results are shown in the table below.

[0137]

[0138] As can be seen from the table above, by changing the arrangement of the block ceramic membranes, the filling area of ​​the ceramic membranes in ceramic membrane devices of the same external dimensions is different. Therefore, by changing the arrangement of the ceramic membranes, ceramic membrane devices with different liquid flow channel areas can be obtained. When used for water treatment, the larger the filling area (liquid flow channel) is, the greater the treatment capacity of the device and the higher the efficiency of water treatment.

Claims

1. A high packing area ceramic membrane device, the device comprising a cylinder (1), a head (2) and a block ceramic membrane (3); the block ceramic membrane (3) is arranged in the cylinder (1), and the head (2) is arranged at both ends of the cylinder (1); characterized in that: The block ceramic membrane (3) comprises a plurality of first block ceramic membranes (301) and a plurality of second block ceramic membranes (302); the plurality of first block ceramic membranes (301) are arranged in a stacked manner, and the second block ceramic membranes (302) are arranged between the first block ceramic membranes (301) and the inner wall of the cylinder (1); the length direction of the block ceramic membrane (3) is parallel to the cylinder (1); the first block ceramic membranes (301) and the second block ceramic membranes (302) form the block ceramic membrane (3) with a circular cross section. The plurality of first block ceramic membranes (301) have the same cross-sectional shape; the plurality of second block ceramic membranes (302) have the same cross-sectional shape; the cross section of the first block ceramic membrane (301) is isosceles trapezoidal structure, and the cross section of the second block ceramic membrane (302) is arc-shaped; the plurality of first block ceramic membranes (301) are arranged in a stacked manner in a regular hexagonal structure, and six arc-shaped second block ceramic membranes (302) are arranged between the first block ceramic membranes (301) and the inner wall of the cylinder (1). Or The plurality of first block ceramic membranes (301) have the same cross-sectional shape; the plurality of second block ceramic membranes (302) have the same cross-sectional shape; the cross section of the first block ceramic membrane (301) is parallelogram structure, and the cross section of the second block ceramic membrane (302) is arc-shaped; the plurality of first block ceramic membranes (301) are arranged in a stacked manner in a regular hexagonal structure with the center of the cylinder (1) as the center, and six arc-shaped second block ceramic membranes (302) are arranged between the first block ceramic membranes (301) and the inner wall of the cylinder (1). Or The cross section of the first block ceramic membrane (301) is a special parallelogram structure, two long sides of the special parallelogram structure are parallel straight lines; one of the two short sides is a straight line, and the other is an arc; the plurality of first block ceramic membranes (301) are arranged in a stacked manner in a structure with three straight sides and three arc sides with the center of the cylinder (1) as the center; the cross section of the second block ceramic membrane (302) is arc-shaped; three arc-shaped second block ceramic membranes (302) are arranged between the straight side of the first block ceramic membrane (301) and the inner wall of the cylinder (1).

2. The high packing area ceramic membrane device according to claim 1, characterized by: The block ceramic membrane (3) comprises n groups of first block ceramic membranes (301), each group of first block ceramic membranes (301) comprises two identical first block ceramic membranes (301), and the cross-sectional areas of the first block ceramic membranes (301) in different groups are different.

3. The high packing area ceramic membrane device of claim 2, wherein: n is 1-10.

4. The high packing area ceramic membrane device of claim 3, wherein: n is 2-8.

5. The high packing area ceramic membrane device of claim 4, wherein: n is 3-6.

6. The high packing area ceramic membrane device of claim 1, wherein: The block ceramic membrane (3) comprises m groups of first block ceramic membranes (301), and the cross-sectional areas of all the first block ceramic membranes (301) are equal; each group of first block ceramic membranes (301) comprises three identical first block ceramic membranes (301).

7. The high packing area ceramic membrane device of claim 6, wherein: m is 1-10.

8. The high packing area ceramic membrane device of claim 7, wherein: m is 2-8.

9. The high packing area ceramic membrane device of claim 8, wherein: m is 3-6.

10. The high packing area ceramic membrane device of claim 1, wherein: The blocky ceramic membrane (3) comprises p groups of first blocky ceramic membranes (301), and each group of first blocky ceramic membranes (301) comprises three first blocky ceramic membranes (301) in a special parallelogram structure.

11. The high packing area ceramic membrane device of claim 10, wherein: P is 1-10.

12. The high packing area ceramic membrane device of claim 11, wherein: P is 2-8.

13. The high packing area ceramic membrane device of claim 12, wherein: P is 3-6.

14. The high packing area ceramic membrane device according to any one of claims 1-13, characterized by: The blocky ceramic membranes (3) are provided with an adhesive layer; and / or The blocky ceramic membranes (3) and the cylinder body (1) are provided with an adhesive layer.

15. The high packing area ceramic membrane device according to any one of claims 1-13, characterized by: The device further comprises a collecting device (101) arranged at both ends of the blocky ceramic membrane (3); the collecting device (101) is a tubular structure having a through hole and a hollow chamber, and the through hole and the hollow chamber are independent spaces; a clean water gap is formed between the outer wall of the blocky ceramic membrane (3) and the inner wall of the cylinder body (1); the outer wall of the end of the blocky ceramic membrane (3) is connected with the inner wall of the through hole, and the hollow chamber of the tubular structure is in communication with the clean water gap.

16. The high packing area ceramic membrane device of claim 15, wherein: The through holes of the collecting devices (101) on both ends of the blocky ceramic membrane (3) are respectively communicated to the water inlet and the concentrated water outlet; the collecting device (101) is provided with a clean water outlet (4) which is in communication with the hollow chamber of the tubular structure; optionally, the end cover (2) comprises an upper end cover (201) and a lower end cover (202); the upper end cover (201) and the lower end cover (202) are respectively arranged at both ends of the blocky ceramic membrane (3) and connected with the collecting device (101); the upper end cover (201) is provided with a concentrated water outlet (5), and the through hole is communicated to the liquid outlet end of the liquid channel of the blocky ceramic membrane (3); the lower end cover (202) is provided with a water inlet (6), and the through hole of the collecting device (101) on the other end of the blocky ceramic membrane (3) is communicated to the liquid inlet end of the liquid channel of the blocky ceramic membrane (3).

17. The high packing area ceramic membrane device of any one of claims 1-13, wherein: The end cover (2) comprises an upper end cover (201) and a lower end cover (202); the upper end cover (201) and the lower end cover (202) are respectively connected with both ends of the blocky ceramic membrane (3); the upper end cover (201) is provided with a clean water outlet (4) and a concentrated water outlet (5); a clean water gap is formed between the outer wall of the blocky ceramic membrane (3) and the inner wall of the cylinder body (1), and the clean water outlet (4) is in communication with the clean water gap; the blocky ceramic membrane (3) is internally provided with a liquid channel, and the concentrated water outlet (5) is communicated to the liquid outlet end of the liquid channel; the lower end cover (202) is provided with a water inlet (6); the water inlet (6) is communicated to the liquid inlet end of the liquid channel.

18. The high packing area ceramic membrane device of claim 17, wherein: The device further comprises a connecting device (102) arranged at both ends of the blocky ceramic membrane (3), and the connecting device (102) is a tubular structure; the clean water outlet (4) is communicated to the clean water gap through the shell channel of the connecting device (102); the concentrated water outlet (5) is communicated to the liquid outlet end of the liquid channel through the pipe channel of the connecting device (102); and the water inlet (6) is communicated to the liquid inlet end of the liquid channel through the pipe channel of the connecting device (102).

19. The high packing area ceramic membrane device of claim 16, wherein: The lower end cover (202) is further provided with an air inlet (7); the air inlet (7) is communicated to the clean water gap or the liquid channel; and / or The device further comprises fixing devices (8); the fixing devices (8) are respectively used for fixing the upper head (201) and the cylinder body (1), the lower head (202) and the cylinder body (1); and / or The block-shaped ceramic membrane (3) is provided with a filter membrane layer.

20. The high packing area ceramic membrane device of claim 17, wherein: The lower head (202) is further provided with an air inlet (7); the air inlet (7) is in communication with the water purification gap or the liquid channel; and / or The device further comprises fixing devices (8); the fixing devices (8) are respectively used for fixing the upper head (201) and the cylinder body (1), the lower head (202) and the cylinder body (1); and / or The block-shaped ceramic membrane (3) is provided with a filter membrane layer.

21. The high packing area ceramic membrane device according to claim 19 or 20, characterized in that: The fixing devices (8) are clamps.

22. The high packing area ceramic membrane device of claim 19 or 20, wherein: The filter membrane layer is arranged on the inner wall of the liquid channel of the block-shaped ceramic membrane (3).

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