A spliced silicon carbide ceramic membrane
By designing the silicon carbide ceramic membrane as a modular filter element unit that can be spliced together, the problems of low yield and high cost of silicon carbide ceramic membranes in the existing technology are solved, and efficient production and convenient maintenance are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING YUSHUO MEMBRANE TECHNOLOGY CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
AI Technical Summary
The manufacturing process of existing silicon carbide ceramic films faces challenges in achieving uniform structure and performance control due to increased length, leading to problems such as cracks and inconsistent porosity, which reduces yield and increases costs.
The design incorporates a modular silicon carbide ceramic membrane, with each filter element manufactured and inspected independently. Initial assembly is achieved through the cooperation of positioning protrusions and splicing flanges with positioning grooves and splicing grooves, followed by clamping between sealing plates using a fixing mechanism.
It improves production efficiency and yield, facilitates maintenance and replacement, and reduces costs.
Smart Images

Figure CN224524465U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silicon carbide ceramic membrane technology, specifically a spliced silicon carbide ceramic membrane. Background Technology
[0002] Silicon carbide ceramic membranes are advanced ceramic membranes made primarily of silicon carbide. They combine the excellent properties of silicon carbide, such as high hardness, good wear resistance, corrosion resistance, and high-temperature stability, enabling them to perform exceptionally well in harsh environments. Silicon carbide ceramic membranes are commonly used in filtration, separation technologies, and protective coatings. Due to their ability to operate effectively under high temperature, high pressure, and strong corrosive conditions, they are widely used in important industries such as chemical, environmental protection, and energy.
[0003] In existing technologies, achieving uniform structure and performance of silicon carbide ceramic films becomes more difficult as their length increases during manufacturing. This includes issues such as uneven temperature distribution during sintering, increased internal stress in the material, and more difficult-to-control microstructure consistency, leading to cracks, inconsistent porosity, or other defects in the film. This affects the performance and reliability of the final product, reducing the yield. In summary, existing technologies suffer from low yield and high cost for longer silicon carbide ceramic films. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing long silicon carbide ceramic membranes, such as low yield and high cost, by proposing a modular silicon carbide ceramic membrane. This modular membrane, through its design of the filter element mechanism (1) as a modular unit, allows each filter element to be manufactured and inspected independently, significantly improving production efficiency and yield. This modular design means that even if a filter element malfunctions during production, only that part needs to be replaced, rather than discarding the entire membrane.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A spliced silicon carbide ceramic membrane is designed, comprising a lower sealing plate, an upper sealing plate, a fixing mechanism, and several filter element mechanisms. Each filter element mechanism, the lower sealing plate, and the upper sealing plate has mounting holes inside. The fixing mechanism is detachably installed inside the mounting holes. The lower and upper sealing plates are detachably installed on the upper and lower sides of the filter element mechanisms respectively via the fixing mechanism. Each filter element mechanism includes a support column and a filter sleeve. Several connecting plates are fixedly installed on the outer wall of the support column, and these connecting plates are fixedly installed on the inner wall of the filter sleeve. A positioning protrusion is provided at the top of the support column, and a positioning groove corresponding to the positioning protrusion is provided at the bottom of the support column. A splicing flange is provided at the top of the filter sleeve, and a splicing groove corresponding to the splicing flange is provided at the bottom of the filter sleeve.
[0006] Furthermore, a sealing ring is fixedly installed on the outer wall of the splicing flange.
[0007] Furthermore, the fixing mechanism includes a fixing rod and a fixing cap. The fixing rod is movably installed inside the mounting hole, and the fixing cap is fixedly installed inside the lower sealing plate. The upper sealing plate has a mounting groove inside. A screw head is fixedly installed at the bottom of the fixing rod and is threaded into the inside of the fixing cap. An operating cap is fixedly installed at the top of the fixing rod and is movably installed inside the mounting groove.
[0008] Furthermore, a spring is fixedly installed at the bottom of the operating cap, and the spring is movably installed inside the mounting groove.
[0009] Furthermore, the diameter of the fixing rod is slightly smaller than that of the mounting hole.
[0010] Furthermore, both the lower sealing plate and the upper sealing plate are provided with mounting flanges on their outer walls.
[0011] Furthermore, the fixing mechanism is provided in various specifications, and several fixing mechanisms correspond to different numbers of filter element mechanisms plus the lower sealing plate and the upper sealing plate in total length.
[0012] The present invention proposes a splicable silicon carbide ceramic membrane, which has the following advantages: by designing the filter element mechanism as a splicable module, each filter element unit can be manufactured and inspected independently, which greatly improves production efficiency and yield. This modular design means that even if a filter element has a problem during the production process, only that part needs to be replaced, instead of discarding the entire membrane. The filter element mechanism is initially spliced by the cooperation of the positioning protrusion and splicing flange with the positioning groove and splicing groove, and then clamped between the lower sealing plate and the upper sealing plate by the fixing mechanism. Installation and disassembly are very convenient, and maintenance and replacement are easy. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 This is a cross-sectional view of the filter element mechanism of this utility model; Figure 4 This is a cross-sectional view of the fixing mechanism of this utility model.
[0014] In the diagram: 1. Filter element mechanism; 101. Support column; 102. Connecting plate; 103. Filter sleeve; 104. Positioning protrusion; 105. Positioning groove; 106. Splicing flange; 107. Splicing groove; 2. Lower sealing plate; 3. Upper sealing plate; 4. Fixing mechanism; 401. Fixing rod; 402. Fixing cap; 403. Screw head; 404. Operating cap; 405. Spring; 5. Mounting hole; 6. Mounting flange; 7. Sealing ring; 8. Mounting groove. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] The structural features of this utility model will now be described in detail with reference to the accompanying drawings.
[0019] See Figures 1-4A spliced silicon carbide ceramic membrane includes a lower sealing plate 2, an upper sealing plate 3, a fixing mechanism 4, and several filter element mechanisms 1. Each of the filter element mechanism 1, the lower sealing plate 2, and the upper sealing plate 3 has mounting holes 5. The fixing mechanism 4 is detachably installed inside the mounting holes 5. The lower sealing plate 2 and the upper sealing plate 3 are detachably installed on the upper and lower sides of the filter element mechanisms 1 respectively via the fixing mechanism 4. Each filter element mechanism 1 includes a support column 101 and a filter sleeve 103. Several connecting plates 102 are fixedly installed on the outer wall of the support column 101, and the connecting plates 102 are fixedly installed on the inner wall of the filter sleeve 103. A positioning protrusion 104 is provided at the top of the support column 101, and a positioning protrusion 104 is provided at the bottom of the support column 101. The positioning groove 105 corresponding to the positioning protrusion 104, the top of the filter sleeve 103 is provided with a splicing flange 106, the bottom of the filter sleeve 103 is provided with a splicing groove 107 corresponding to the splicing flange 106, the fixing mechanism 4 includes a fixing rod 401 and a fixing cap 402, the fixing rod 401 is movably installed inside the mounting hole 5, the fixing cap 402 is fixedly installed inside the lower sealing plate 2, the upper sealing plate 3 is provided with a mounting groove 8, the bottom of the fixing rod 401 is fixedly installed with a screw head 403, the screw head 403 is threadedly connected to the inside of the fixing cap 402, the top of the fixing rod 401 is fixedly installed with an operating cap 404, the operating cap 404 is movably installed inside the mounting groove 8; A sealing ring 7 is fixedly installed on the outer wall of the splicing flange 106 to ensure the sealing between the splicing flange 106 and the splicing groove 107. A spring 405 is fixedly installed at the bottom of the operating cap 404. The spring 405 is movably installed inside the mounting groove 8. The spring 405 causes the fixing mechanism 4 to elastically compress the upper sealing plate 3 to prevent the sealing failure caused by the different expansion coefficients of the filter element mechanism 1 and the fixing mechanism 4. The diameter of the fixing rod 401 is slightly smaller than that of the mounting hole 5. The fixing rod 401 is prevented from breaking the mounting hole 5 when it expands due to heat. The outer walls of the lower sealing plate 2 and the upper sealing plate 3 are provided with mounting flanges 6. The mounting flanges 6 provide positioning and fixing for the equipment inside the filter, ensuring that the equipment can be correctly and stably installed in the filter housing, and avoiding the equipment from shifting or loosening due to water flow impact or other mechanical movement. The fixing mechanism 4 is provided with various specifications. Several fixing mechanisms 4 correspond to different numbers of filter element mechanisms 1 plus the total length of the lower sealing plate 2 and the upper sealing plate 3.
[0020] This utility model relates to a splicable silicon carbide ceramic membrane. By designing the filter element mechanism 1 as a splicable module, each filter element unit can be manufactured and inspected independently, greatly improving production efficiency and yield. This modular design means that even if a filter element malfunctions during production, only that part needs to be replaced, rather than discarding the entire membrane. The filter element mechanism 1 is initially spliced by the cooperation of the positioning protrusion 104 and the splicing flange 106 with the positioning groove 105 and the splicing groove 107, and then clamped between the lower sealing plate 2 and the upper sealing plate 3 by the fixing mechanism 4. Installation and disassembly are very convenient, facilitating maintenance and replacement.
[0021] Specifically, by inserting the positioning protrusion 104 and the splicing flange 106 into the positioning groove 105 and the splicing groove 107, several filter element mechanisms 1 are initially spliced together. Then, the upper sealing plate 3 is placed on the top of the filter element mechanism 1, and the lower sealing plate 2 is placed at the bottom of the filter element mechanism 1. Then, the fixing rod 401 is inserted into the mounting hole 5, passing through the filter element mechanism 1, the lower sealing plate 2, and the upper sealing plate 3. The screw head 403 is fixed inside the fixing cap 402 by rotating the operating cap 404, thereby clamping several filter element mechanisms 1 between the lower sealing plate 2 and the upper sealing plate 3.
[0022] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A spliced silicon carbide ceramic membrane, characterized in that, include: The filter element mechanism (1) includes a lower sealing plate (2), an upper sealing plate (3), a fixing mechanism (4), and several filter element mechanisms (1). The filter element mechanism (1), the lower sealing plate (2), and the upper sealing plate (3) are all provided with mounting holes (5). The fixing mechanism (4) is detachably installed inside the mounting holes (5). The lower sealing plate (2) and the upper sealing plate (3) are detachably installed on the upper and lower sides of the filter element mechanism (1) respectively through the fixing mechanism (4). The filter element mechanism (1) includes a support column (101) and a filter sleeve (103). A plurality of connecting plates (102) are fixedly installed on the outer wall of the support column (101). The plurality of connecting plates (102) are fixedly installed on the inner wall of the filter sleeve (103). A positioning protrusion (104) is provided on the top of the support column (101). A positioning groove (105) corresponding to the positioning protrusion (104) is opened on the bottom of the support column (101). A splicing flange (106) is provided on the top of the filter sleeve (103). A splicing groove (107) corresponding to the splicing flange (106) is opened on the bottom of the filter sleeve (103).
2. The spliced silicon carbide ceramic membrane according to claim 1, characterized in that, A sealing ring (7) is fixedly installed on the outer wall of the splicing flange (106).
3. The spliced silicon carbide ceramic membrane according to claim 1, characterized in that, The fixing mechanism (4) includes a fixing rod (401) and a fixing cap (402). The fixing rod (401) is movably installed inside the mounting hole (5). The fixing cap (402) is fixedly installed inside the lower sealing plate (2). The upper sealing plate (3) has an installation groove (8) inside. A screw head (403) is fixedly installed at the bottom of the fixing rod (401). The screw head (403) is threadedly connected to the inside of the fixing cap (402). An operating cap (404) is fixedly installed at the top of the fixing rod (401). The operating cap (404) is movably installed inside the installation groove (8).
4. The spliced silicon carbide ceramic membrane according to claim 3, characterized in that, A spring (405) is fixedly installed at the bottom of the operating cap (404), and the spring (405) is movably installed inside the mounting groove (8).
5. The spliced silicon carbide ceramic membrane according to claim 3, characterized in that, The diameter of the fixing rod (401) is slightly smaller than that of the mounting hole (5).
6. The spliced silicon carbide ceramic membrane according to claim 1, characterized in that, The outer walls of both the lower sealing plate (2) and the upper sealing plate (3) are provided with mounting flanges (6).
7. The spliced silicon carbide ceramic membrane according to claim 1, characterized in that, The fixing mechanism (4) is provided in various specifications, and several fixing mechanisms (4) correspond to different numbers of filter element mechanisms (1) plus the lower sealing plate (2) and the upper sealing plate (3) in total length.