Honeycomb type ceramic separation membrane assembly easy to assemble

Abstract

The utility model relates to the technical field of membrane separation technology and separation membrane products, in particular to a honeycomb type ceramic separation membrane component easy to assemble, which comprises a ceramic separation membrane element, a cylinder body, end sockets and sealing rings, the end sockets are respectively arranged at two ends of the cylinder body, and the ceramic separation membrane element is fixed inside the cylinder body through the end sockets; the end socket comprises a plug ring, an end socket flange plate and a pipeline quick coupler, and the plug ring and the pipeline quick coupler are welded to the two opposite sides of the end socket flange plate respectively. The ceramic separation membrane element is a cylindrical honeycomb type ceramic separation membrane assembly, the two ends of the ceramic separation membrane assembly are provided with combination discs for fixing ceramic separation membrane pieces, the plug rings are arranged on the combination discs in a sleeving mode, the end socket flange plates are fixedly connected with the ends of the barrel, and the two pipeline quick couplings are arranged to be an inlet and an outlet of raw material liquid respectively. The barrel body is provided with a filtrate outlet and a backwashing liquid inlet; sealing rings are respectively arranged between the sealing head and the ceramic separation membrane element and between the sealing head and the cylinder body; and a connecting channel of the raw material liquid cavity and the filtrate cavity is only provided with functional micropores of the ceramic separation membrane.

Description

Technical Field

[0001] The utility model relates to the technical field of membrane separation technology and separation membrane products, in particular to a honeycomb ceramic separation membrane component that is easy to assemble. Background Art

[0002] Separation membranes are materials with selective separation capabilities, allowing one or more substances in liquid or gaseous materials to pass through while retaining others, thereby achieving separation and purification. Compared with conventional separation methods, membrane separation technology offers advantages such as high separation efficiency, low energy consumption, high yield, simple processes and equipment, and automated operation. The 20th century saw rapid development of separation membrane materials and membrane separation technology, leading to its widespread application. Currently, various membrane separation technologies are widely used in the food, bioengineering, environmental protection, chemical, electronics, metallurgy, and other fields.

[0003] After decades of development, a wide variety of separation membrane products have emerged. Based on the material used, separation membranes can be categorized as organic, ceramic, and metallic. In recent years, organic and inorganic composite separation membranes, or hybrid membranes, have also emerged, offering unique membrane properties. Based on their shape, they can be categorized into several types, including tubular, hollow fiber, flat, and honeycomb. The selection of separation membranes should comprehensively consider factors such as technology and cost.

[0004] Compared with organic separation membranes, ceramic separation membranes are made of relatively few materials, mainly aluminum oxide, silicon carbide, zirconium oxide and titanium oxide. Although ceramic separation membranes have the advantages of high mechanical strength, good shape stability, excellent corrosion resistance, strong anti-pollution ability, excellent cleaning recovery and long service life, they also have problems such as complex production process, high commodity price and low packing density. Therefore, improving the packing density of ceramic separation membranes is an important part of the development of ceramic separation membrane technology. Honeycomb ceramic separation membranes are a type of ceramic separation membrane developed to improve the packing density. The outer diameter of the honeycomb ceramic separation membrane is generally greater than 100 mm, and the pore diameter is less than 3 mm. Therefore, the packing density ratio (the ratio of the effective membrane area of the membrane element to the volume of the membrane element) provided by the honeycomb ceramic separation membrane is between that of the hollow fiber membrane and the tubular membrane.

[0005] Honeycomb ceramic separation membranes can be single ceramic membrane tubes or composed of multiple ceramic membrane sheets. Single membrane tube products require strict production process control; otherwise, a minor defect within the membrane tube can render the entire tube scrapped, resulting in a reduced yield and a significant increase in production costs. Products composed of multiple membrane sheets tend to have higher yields, but the membrane element assembly and packaging process is more complex. A significant problem is that the external dimensions of each membrane sheet vary, making conventional sealing and assembly methods unsatisfactory. Utility Model Content

[0006] The purpose of the utility model is to provide an easy-to-assemble honeycomb ceramic separation membrane assembly, aiming to solve the packaging problem of assembling a honeycomb ceramic separation membrane with multiple membranes by controlling the dimensional accuracy of the membrane combination unit, designing a simple assembly structure and a reliable sealing structure.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: an easily assembled honeycomb ceramic separation membrane assembly, comprising a ceramic separation membrane element, a cylinder, a head, and a sealing ring, wherein the heads are respectively provided at both ends of the cylinder, and the ceramic separation membrane element is fixed inside the cylinder through the heads;

[0008] The head includes a plug ring, a head flange and a pipe quick-release joint, and the plug ring and the pipe quick-release joint are respectively welded to opposite sides of the head flange; the ceramic separation membrane element is a cylindrical honeycomb ceramic separation membrane assembly, and its two ends are combined disks for fixing ceramic separation membrane diaphragms. The plug ring is sleeved on the combined disk, and the head flange is connected and fixed to the end of the cylinder. The two pipe quick-release joints are respectively provided as the inlet and outlet of the raw liquid, and the cylinder is provided with an outlet for the filtrate and an inlet for the backwash liquid;

[0009] The sealing rings are respectively provided between the head and the ceramic separation membrane element and between the head and the cylinder. The plug ring and the sealing ring divide the internal space of the ceramic separation membrane assembly into two relatively independent parts, namely the raw liquid cavity and the filtrate cavity. The communication channel between the raw liquid cavity and the filtrate cavity is only the functional micropores of the ceramic separation membrane.

[0010] Preferably, the ceramic separation membrane element is a cylindrical honeycomb ceramic separation membrane assembly consisting of 2 to 10 ceramic separation membrane sheets and two combination disks, and the combination disks are parallel to each other and have their centers on the same axis.

[0011] Preferably, the combined disk is provided with intervals and hollows according to the shape and size of the ceramic separation membrane sheets, and the ceramic separation membrane sheets are neatly arranged, sequentially inserted into the hollows and neatly arranged through the intervals to form the cylindrical honeycomb ceramic separation membrane assembly.

[0012] Preferably, the number of the ceramic separation membrane sheets is 6 to 8.

[0013] Preferably, the combined disk and the ceramic separation membrane are fixed with an adhesive, and the adhesive is an epoxy resin or polyurethane with water-resistant and chemical-resistant properties.

[0014] Preferably, cylinder flanges are provided at both ends of the cylinder, and the head flanges are connected to the cylinder flanges by screws or quick-fit parts; the sealing rings are respectively provided between the cylinder flanges and the head flanges, and between the plug ring and the combined disk.

[0015] Preferably, a step is provided inside the plug ring, and the step divides the inner wall of the plug ring into a contact wall and a hollow wall. The inner diameter of the contact wall is larger than the outer diameter of the combination disk, and the difference between the former and the latter is in the range of 0.5 to 1.5 mm; the side of the combination disk is opposite to the contact wall, and the two are sealed by the sealing ring, and a buffer flat washer is provided between the end of the combination disk and the step.

[0016] Preferably, the outer diameter of the plug ring is smaller than the inner diameter of the cylinder, and the difference between the former and the latter is in the range of -2 to 0 mm.

[0017] Preferably, the cylinder flange is provided with an annular flange groove, and the outer side of the combination disk is provided with 1 to 2 annular combination disk grooves, and the sealing ring includes a first O-ring and a second O-ring, the first O-ring is located in the two flange grooves, and the second O-ring is located in the combination disk groove; the cylinder flange and the head flange are sealed by the first O-ring, and the plug ring and the combination disk are sealed by the second O-ring.

[0018] Preferably, the sealing ring is a standard O-ring made of rubber material, and can be EPDM rubber, silicone rubber or fluororubber, to prevent cross-flow or leakage between the raw liquid cavity and the filtrate cavity.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1) Compared with the assembly and sealing structure of similar products at home and abroad, the utility model designs the heads at both ends of the assembly into a three-in-one structure of a plug ring, a head flange and a pipe quick-release connector. This not only simplifies the assembly process of the assembly, but also eliminates the need for thick and large combination plates and large-diameter cylinders, significantly reducing the diameter and length of the separation membrane assembly and achieving a higher separation membrane packing density;

[0021] 2) The utility model combines multiple ceramic separation membrane sheets with a combination disk. By accurately controlling the relative positions of the combination disks at both ends, a honeycomb ceramic separation membrane element with precisely consistent dimensions is obtained, thus overcoming the inevitable dimensional deviation in the production of ceramic separation membrane sheets.

[0022] 3) The honeycomb ceramic separation membrane element with precise and consistent dimensions does not require a large margin in the design size of the cylinder, which ensures that there is enough distance between the ceramic separation membrane sheet and the cylinder to reduce the resistance to liquid flow without excessively increasing the dimensions of the separation membrane assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a reference style for multi-piece combined honeycomb ceramic separation membranes;

[0024] Figure 2 This is the honeycomb ceramic separation membrane element style in the utility model;

[0025] Figure 3 This is a schematic structural diagram of a combination tray according to an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram of the external structure of an embodiment of the utility model;

[0027] Figure 5 A schematic cross-sectional view of an embodiment of the present utility model;

[0028] Figure 6 This is a schematic structural diagram of a head according to an embodiment of the present utility model;

[0029] Figure 7 It is a local assembly structure of an embodiment of the utility model;

[0030] Figure 8 This is a cross-sectional view of a group of honeycomb ceramic separation membrane sheets. DETAILED DESCRIPTION

[0031] The production of ceramic separation membranes involves several major process steps, including mixing, kneading, extrusion, drying, firing, and coating. Among them, extrusion, drying, and firing have a significant impact on the product's external dimensions. For example, due to the inevitable unevenness in the temperature distribution in the kiln, the green bodies placed at different positions on the kiln car will experience varying degrees of firing shrinkage. Moreover, for long strip green bodies, there are also differences in firing shrinkage between the ends and the middle. These inconsistencies or deviations in production process parameters result in different degrees of deviation between the external dimensions of each ceramic separation membrane sheet and the design value, which brings a lot of difficulties to the assembly of ceramic separation membranes. For this reason, it is first necessary to combine multiple ceramic separation membrane sheets into a ceramic separation membrane element with a dimensional deviation smaller than that required for assembly.

[0032] like Figure 1As shown, multiple ceramic separation membrane sheets of different widths form an approximately cylindrical assembly. The number of ceramic separation membrane sheets is 2 to 10. When the number is 2, it means two approximately semicircular membrane sheets. When the number is greater than 2, the thickness of the membrane decreases accordingly. Reducing the thickness of the membrane is beneficial to controlling the yield of membrane production and also to reducing the resistance to water flow in the membrane. However, too many membranes will increase the number of molds and bring a burden to production management. Therefore, the number of membranes should not exceed 10, and the preferred number of membranes is 6 to 8.

[0033] Since each diaphragm of the same specification has different deviations in size, it is difficult to seal directly with a rubber seal. A simpler method is to insert a group of diaphragms into a composite disk and arrange them into a cylindrical shape, and use adhesive to fix the diaphragms and the composite disk together to form a honeycomb ceramic separation membrane element. Figure 2 The figure shows a schematic diagram of a honeycomb ceramic separation membrane element, wherein several ceramic separation membrane sheets 301 and a composite plate 302 are fixed together with an adhesive. The adhesive is epoxy resin, polyurethane, or other components, and has water resistance, chemical corrosion resistance, and other properties required by the application.

[0034] The production of honeycomb ceramic separation membrane elements requires specialized tooling. This tooling precisely controls the distance between the two end plates, ensuring they are parallel and aligned, resulting in a cylindrical ceramic separation membrane element with precise dimensions. The consistent dimensions of honeycomb ceramic separation membrane elements encapsulated in this manner are a prerequisite for the subsequent smooth assembly of the honeycomb ceramic separation membrane assembly.

[0035] Figure 3 This is a schematic diagram of the structure of the aforementioned assembly tray 302. Assembly tray 302 is made of engineering plastics, stainless steel, and preferably glass-fiber-reinforced ABS. Spacers 3022 and cutouts are provided on assembly tray 302 based on the shapes of the ceramic separation membrane sheets 301. The ceramic separation membrane sheets 301 are sequentially inserted into the holes of the assembly tray according to their shape and size. Spacers 3022 control the distance between the sheets 301. The diaphragms 301 can be inserted vertically or horizontally.

[0036] After inserting the membrane 301 into the assembly tray 302, adjust the assembly trays 302 at both ends to the designed position on the fixture and secure them. Then, while keeping the fixture vertical, inject adhesive into the assembly tray frame 3021 in the glue injection position, ensuring that the adhesive flows evenly throughout the entire frame. Pay particular attention to ensuring that the adhesive flows evenly into the gaps between the membranes 301. After the glue cures, flip the fixture so that the assembly tray 302 at the other end is in the glue injection position and inject adhesive again.

[0037] After the adhesive in the two assembly disks 302 is completely cured, they are removed from the tooling to obtain the honeycomb ceramic separation membrane element 3. The outer ring of the assembly disk 302 is also provided with one or two assembly disk grooves 3023, in which a second O-ring 502 is sleeved for subsequent assembly of the separation membrane assembly.

[0038] Combine Figures 2 to 7 The present invention discloses a honeycomb ceramic separation membrane assembly comprising a cylindrical body 1, a sealing head 2, a sealing ring, and the aforementioned honeycomb ceramic separation membrane element 3. The sealing rings are standard O-rings, including a first O-ring 501 and a second O-ring 502 fitted within a recess 3023 of a composite disc. Both of these sealing rings are made of rubber, preferably EPDM rubber, silicone rubber, or fluororubber, depending on the application.

[0039] like Figure 4 and Figure 5 As shown, the cylinder 1 is located in the middle, and the head 2 is provided at both ends of the cylinder 1. The ceramic separation membrane element 3 is fixed to the inside of the cylinder 1 through the head 2. The head 2 is provided with a pipe quick-release connector 201. The pipe quick-release connector 201 is provided with a pipe quick-release connector, which serves as the raw liquid inlet and outlet. The cylinder 1 is provided with a filtrate outlet and a backwash liquid inlet 102. The ceramic separation membrane element 3 is fixed to the inside of the cylinder 1 through the head 2.

[0040] Combine Figure 6 The sealing head 2 is composed of a sealing head flange 202, a plug ring 203, and the aforementioned pipe quick-connect connector 201. The pipe quick-connect connector 201 and the plug ring 203 are respectively welded to both sides of the sealing head flange 202. A step 205 is provided inside the plug ring 203, which divides the inner wall of the plug ring 203 into a contact wall 204 and a hollow wall.

[0041] like Figure 7 As shown, the plug ring 203 is positioned outside the assembly disc 302 of the honeycomb ceramic separation membrane element 3. The inner diameter of the contact wall 204 is larger than the outer diameter of the assembly disc 302 of the ceramic separation membrane element 3, preferably with a difference of 0.5 to 1.5 mm. The side of the assembly disc 302 faces the contact wall 204, and the end is in surface contact with the step 205. The contact wall 204 and the assembly disc 302 are sealed by a second O-ring 502 on the outside of the assembly disc 302. A buffer flat washer is also provided between the end of the assembly disc 302 and the step 205.

[0042] The outer diameter of the plug ring 203 is smaller than the inner diameter of the cylinder 1, preferably with the difference between the two values ranging from -2 to 0 mm. Cylinder flanges 101 are welded to both ends of the cylinder 1. The cylinder 1 and the cylinder flanges 101 can be made of engineering plastic, fiberglass reinforced plastic, or stainless steel, preferably stainless steel. A flange groove is provided on the cylinder flange 101, in which a first O-ring 501 is placed.

[0043] The plug ring 203 is located inside the cylinder 1 to facilitate the joint and overlap between the cylinder flange 101 and the head flange 202. The cylinder flange 101 and the head flange 202 are connected with screws or quick-fit parts, and the head 2 and the cylinder 1 are sealed by the first O-ring 501 on the cylinder flange 101. As a result, the cylinder 1 and the head 2 are combined into a whole, and the honeycomb ceramic separation membrane element 3 is placed inside the cylinder 1.

[0044] After completing the assembly of both ends of the ceramic separation membrane assembly, the head 2 and each sealing ring separate the internal space of the ceramic separation membrane assembly into two relatively independent parts, the raw liquid cavity and the filtrate cavity. The raw liquid flows in and out from the pipe quick-release joint of the pipe quick-release joint 201, and the filtrate flows out from the pipe interface of the cylinder 1. There will be no cross-flow between the raw liquid and the filtrate. The only communication channel between the raw liquid cavity and the filtrate cavity is the functional micropores of the ceramic separation membrane.

[0045] The pipes, screws and other hardware accessories involved in the above structure are made of stainless steel.

[0046] The honeycomb ceramic separation membrane assembly of the present invention has the characteristics of simple structure and quick assembly. The specific assembly steps are as follows: since the head 2 is a three-in-one structure consisting of a plug ring 203, a head flange 202 and a pipe quick-release connector 201, the head 2 can achieve multiple functions such as sealing and raw material liquid inlet and outlet, so the assembly process of the present invention becomes simple and quick. Figure 7 Taking the structure as an example, the specific assembly steps are as follows. Since the utility model is an axisymmetric structure, the two ends along its length direction are named the first end and the second end respectively:

[0047] 1) Prepare the materials and components required for assembling the honeycomb ceramic separation membrane assembly;

[0048] 2) Insert the second O-ring 502 into the grooves 3023 of the assembly disc at both ends of the ceramic separation membrane element 3;

[0049] 3) Place a head 2 on the tooling base with the step 205 facing upwards;

[0050] 4) Vertically insert the ceramic separation membrane element 3 into the plug ring 203 of the head 2, so that the assembly disk 302 at the end of the ceramic separation membrane element 3 rests on the step 205 inside the plug ring 203, and the second O-ring 502 forms a seal between the assembly disk 302 and the contact wall 204 of the head 2;

[0051] 5) Place the first O-ring 501 into the flange groove of the cylinder flange 101 at the first end of the cylinder 1, and with the first end of the cylinder 1 facing downward, put the cylinder 1 on the outside of the ceramic separation membrane element 3, so that the cylinder flange 101 is positioned on the head flange 202 on the tooling base, and connect and fix the two with screws or quick-fit parts;

[0052] 6) Place the first O-ring 501 into the flange groove of the cylinder flange 101 at the second end of the cylinder 1;

[0053] 7) Insert another head 2 from the second end of the cylinder 1 between the cylinder 1 and the ceramic separation membrane element 3, so that the head flange 202 of the head 2 falls on the cylinder flange 101 at the second end of the cylinder 1, and connect and fix the two with screws or quick-fit parts.

[0054] After the above installation steps, you will get Figure 4 、 Figure 5 The honeycomb ceramic separation membrane component shown.

[0055] According to the above structure and steps, the following set of embodiments is provided. The components and main accessories used include: a set of 8 ceramic separation membrane sheets, 2 combination plates, 1 cylinder (including 2 cylinder flanges), 2 heads (including 1 head flange each), 2 quick-release clamps, and 4 O-rings. The sizes of the components are as follows:

[0056] 1) Ceramic separation membrane, such as Figure 8 As shown, the honeycomb structure consists of eight ceramic separation membranes in four sizes. Each membrane is 1500mm long and 21.2mm thick. The eight membranes are arranged in parallel with 2mm spacing to form a cylinder with a diameter of 188.4mm. The ceramic separation membranes are made of aluminum oxide or silicon carbide ceramic.

[0057] 2) Combination plate, such as Figure 3 As shown, the assembly plate has an outer diameter of 210mm and a thickness of 20mm, an inner diameter of 195mm, and a groove depth of 15mm. An annular groove with a width of 5.4mm and a depth of 3mm is located on the outer wall of the assembly plate to accommodate an O-ring with an outer diameter of 205mm and a wire diameter of 5mm. The assembly plate is made of ABS plastic.

[0058] 3) Cylinder, such as Figure 4 and Figure 5As shown, the cylinder length is 1578mm (including the thickness of the cylinder flange), the outer diameter is 225mm, and the inner diameter is 219mm. Figure 7 As shown, the cylinder flange has an outer diameter of 260mm and a thickness of 18mm. A 250mm diameter circular groove is provided on the cylinder flange to accommodate an O-ring with an outer diameter of 250mm and a wire diameter of 5mm. Two DN50 pipe joints are provided on the cylinder. The cylinder (including the cylinder flange and pipe joints) is made of SUS304 stainless steel.

[0059] 4) Head, such as Figures 4 to 6 As shown, a three-in-one head is created by welding a plug ring and a pipe quick-connect fitting to a head flange. The head flange has an outer diameter of 260 mm and a thickness of 18 mm. Each pipe quick-connect fitting is equipped with a DN80 pipe connector. The head (including the head flange, plug ring, and pipe quick-connect fitting) is made of SUS304 stainless steel.

[0060] 5) Quick-release clamps, 2 quick-release clamps, model Φ260mm, made of SUS304 stainless steel.

[0061] 6) O-rings, including two O-rings with outer diameters of 205mm and 250mm, each with a wire diameter of 5mm. The O-rings are made of EPDM rubber.

[0062] After preparing the components and accessories required to assemble the honeycomb ceramic separation membrane, follow the steps below to assemble:

[0063] 1) On a specially designed membrane element tooling, the ceramic separation membrane sheet and the combination disk are combined into a honeycomb ceramic separation membrane element using polyurethane adhesive.

[0064] 2) On the specially designed membrane assembly tooling, place the honeycomb ceramic separation membrane element, cylinder, head, sealing ring, etc. Figure 4 、 Figure 5 and Figure 7 The structures shown are combined together, and the cylinder flange and the head flange are connected and fixed with quick-release clamps.

[0065] After the above assembly, the appearance is obtained as Figure 4 The honeycomb ceramic separation membrane assembly shown in FIG. The length of the honeycomb ceramic separation membrane assembly is 1691 mm (including the DN80 pipe joint), the diameter is 260 mm (excluding the DN50 pipe joint), and the separation membrane area is 25 m 2 .

[0066] In summary, the present invention solves the difficulties in product assembly caused by inconsistent dimensional deviations of ceramic separation membrane products. Through design optimization, the assembly of separation membrane components becomes simple and fast, and this assembly structure greatly reduces the volume of the separation membrane components. Specifically,

[0067] 1) Compared with the assembly and sealing structure of similar products at home and abroad, the utility model designs the head into a three-in-one structure of a plug ring, a head flange and a pipe quick-release connector. This not only simplifies the assembly process of the component, but also eliminates the need for a thick combination plate and a large-diameter cylinder, significantly reducing the diameter and length of the separation membrane component and achieving a higher separation membrane packing density;

[0068] 2) The utility model combines multiple ceramic separation membrane sheets with a combination disk. By accurately controlling the relative positions of the combination disks at both ends, a honeycomb ceramic separation membrane element with precisely consistent dimensions is obtained, thus overcoming the inevitable dimensional deviation in the production of ceramic separation membrane sheets.

[0069] 3) The honeycomb ceramic separation membrane element with precise and consistent dimensions does not require a large margin in the design size of the cylinder. For example, the inner diameter of the cylinder only needs to be 8 to 10 mm larger than the outer diameter of the combination disk. This difference ensures that there is enough distance between the ceramic separation membrane sheet and the cylinder to reduce the resistance to liquid flow without excessively increasing the dimensions of the separation membrane assembly.

[0070] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An easily assembled honeycomb ceramic separation membrane assembly, characterized by: It includes a ceramic separation membrane element, a cylinder, a head and a sealing ring. The heads are respectively provided at both ends of the cylinder, and the ceramic separation membrane element is fixed inside the cylinder through the heads. The head includes a plug ring, a head flange and a pipe quick-release joint, and the plug ring and the pipe quick-release joint are respectively welded to opposite sides of the head flange; the ceramic separation membrane element is a cylindrical honeycomb ceramic separation membrane assembly, and its two ends are combined disks for fixing ceramic separation membrane diaphragms. The plug ring is sleeved on the combined disk, and the head flange is connected and fixed to the end of the cylinder. The two pipe quick-release joints are respectively provided as the inlet and outlet of the raw liquid, and the cylinder is provided with an outlet for the filtrate and an inlet for the backwash liquid; The sealing rings are respectively provided between the head and the ceramic separation membrane element and between the head and the cylinder. The plug ring and the sealing ring divide the internal space of the ceramic separation membrane assembly into two relatively independent parts, namely the raw liquid cavity and the filtrate cavity. The communication channel between the raw liquid cavity and the filtrate cavity is only the functional micropores of the ceramic separation membrane.

2. The honeycomb ceramic separation membrane assembly according to claim 1, characterized in that: The ceramic separation membrane element is a cylindrical honeycomb ceramic separation membrane assembly consisting of 2 to 10 ceramic separation membrane sheets and two combination disks. The combination disks are parallel to each other and their centers are on the same axis.

3. The honeycomb ceramic separation membrane assembly according to claim 2, characterized in that: The combined disk is provided with intervals and hollows according to the shape and size of the ceramic separation membrane sheets. The ceramic separation membrane sheets are neatly arranged, sequentially inserted into the hollows and neatly arranged through the intervals to form the cylindrical honeycomb ceramic separation membrane assembly.

4. The honeycomb ceramic separation membrane assembly according to claim 3, characterized in that: The number of the ceramic separation membrane sheets is 6 to 8.

5. The honeycomb ceramic separation membrane assembly according to claim 3, characterized in that: The combined disk and the ceramic separation membrane are fixed with an adhesive, and the adhesive is an epoxy resin or polyurethane with water-resistant and chemical-resistant properties.

6. The honeycomb ceramic separation membrane assembly according to claim 2, characterized in that: Cylinder flanges are provided at both ends of the cylinder, and the head flanges are connected to the cylinder flanges by screws or quick-fit parts; the sealing rings are respectively provided between the cylinder flanges and the head flanges, and between the plug ring and the combined disk.

7. The honeycomb ceramic separation membrane assembly according to claim 6, characterized in that: A step is provided inside the plug ring, which divides the inner wall of the plug ring into a contact wall and a hollow wall. The inner diameter of the contact wall is larger than the outer diameter of the combination disk, and the difference between the former and the latter is in the range of 0.5 to 1.5 mm. The side of the combination disk is opposite to the contact wall, and the two are sealed by the sealing ring. A buffer flat washer is provided between the end of the combination disk and the step.

8. The honeycomb ceramic separation membrane assembly according to claim 6, characterized in that: The outer diameter of the plug ring is smaller than the inner diameter of the cylinder, and the difference between the former and the latter is in the range of -2 to 0 mm.

9. The honeycomb ceramic separation membrane assembly according to claim 6, characterized in that: The cylinder flange is provided with an annular flange groove, and the outer side of the combination disk is provided with 1 to 2 annular combination disk grooves. The sealing ring includes a first O-ring and a second O-ring. The first O-ring is located in the two flange grooves, and the second O-ring is located in the combination disk groove. The cylinder flange and the head flange are sealed by the first O-ring, and the plug ring and the combination disk are sealed by the second O-ring.

10. The honeycomb ceramic separation membrane assembly according to claim 9, characterized in that: The sealing ring is a standard O-ring made of rubber material, and can be EPDM rubber, silicone rubber or fluororubber, to prevent cross-flow or leakage between the raw liquid cavity and the filtrate cavity.

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