A high-strength silicon carbide ceramic membrane with an internal support structure

By introducing an internal support structure and a fixing mechanism into the ceramic membrane, the strength problem of the ceramic membrane under high pressure or harsh conditions is solved, and the structural stability and ease of maintenance of the equipment are achieved.

CN224422497UActive Publication Date: 2026-06-30NANJING YUSHUO MEMBRANE TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING YUSHUO MEMBRANE TECHNOLOGY CO LTD
Filing Date
2025-07-30
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing ceramic membranes lack internal support structures, resulting in low mechanical strength and easy cracking or deformation under high pressure or harsh conditions, leading to a short service life.

Method used

A high-strength silicon carbide ceramic membrane with an internal support structure is designed. The main body is fixed inside by a skeleton mechanism and a fixing mechanism to form an integral filter element. The skeleton mechanism serves as an internal support structure to ensure the strength of the equipment and allows for quick replacement of damaged parts.

Benefits of technology

This improves the mechanical strength of the ceramic membrane, prevents cracking and deformation, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a high-strength silicon carbide ceramic membrane with an internal support structure, specifically relating to the field of ceramic membrane technology. It includes a skeleton mechanism, a fixing mechanism, and several main body mechanisms. The main body mechanisms are detachably installed inside the skeleton mechanism via the fixing mechanism. The skeleton mechanism includes prisms and several support plates, with the support plates evenly distributed on the outer wall of the prisms. A sealing edge is fixedly installed on the end of each support plate away from the prism. The prisms, two sets of adjacent support plates, and the outer walls of the two sets of adjacent support plates form a mounting groove, and the main body mechanisms are slidably installed inside the mounting groove. This utility model uses the fixing mechanism to fix several main body mechanisms inside the skeleton mechanism, forming a complete filter element. The skeleton mechanism serves as the internal support structure of the device, ensuring the overall structural strength of the device. Simultaneously, the skeleton mechanism also functions as a mounting frame, allowing for quick replacement of any damaged main body mechanisms.
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Description

Technical Field

[0001] This utility model relates to the field of ceramic membrane technology, specifically to a high-strength silicon carbide ceramic membrane with an internal support structure. Background Technology

[0002] Ceramic membranes are separation membranes made from inorganic ceramic materials. These membranes are typically formed through a sintering process and possess excellent chemical stability, thermal stability, and mechanical strength. Ceramic membranes can be used in liquid and gas separation processes, such as filtration, purification, and concentration. Due to their excellent high-temperature resistance and corrosion resistance, ceramic membranes are widely used in food processing, biomedicine, chemical engineering, and environmental engineering. Based on pore size, ceramic membranes can be classified into different types, such as microfiltration membranes, ultrafiltration membranes, and nanofiltration membranes, to meet various application requirements.

[0003] Existing ceramic membranes typically have a simple structure without internal support. While this meets the usage requirements to some extent, it has been found in actual use that ceramic membranes without internal support have low mechanical strength and are prone to cracking or deformation under high pressure or harsh physical conditions, resulting in a shorter service life. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing ceramic membranes without internal support, which have low mechanical strength, are prone to cracking or deformation under high pressure or harsh physical conditions, and have a short service life. This invention proposes a high-strength silicon carbide ceramic membrane with an internal support structure. This membrane uses a fixing mechanism to fix several main components inside a frame structure, forming a complete filter element. The frame structure serves as the internal support structure of the equipment, ensuring the overall structural strength of the equipment. Simultaneously, the frame structure also functions as a mounting frame, allowing for quick replacement of damaged main components.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design a high-strength silicon carbide ceramic membrane with an internal support structure, including a skeleton mechanism, a fixing mechanism, and several main mechanisms. The main mechanisms are detachably installed inside the skeleton mechanism through the fixing mechanism. The skeleton mechanism includes prisms and several support plates. The support plates are evenly distributed on the outer wall of the prisms. The end of each support plate away from the prism is fixedly fitted with a sealing edge. The prisms, two sets of adjacent support plates, and the outer walls of the two sets of adjacent support plates form an installation groove. The main mechanisms are slidably installed inside the installation groove.

[0007] Furthermore, the fixing mechanism includes an upper cover, a bottom cover, a fixing rod, and a fixing block. The upper cover and the bottom cover are respectively disposed on the upper and lower sides of the skeleton mechanism. An operating cap is fixedly installed on the top of the fixing rod, and a screw head is fixedly installed on the bottom of the fixing rod. A circular groove is opened on the top of the upper cover, and the operating cap is movably installed inside the circular groove. A polygonal groove is opened on the bottom of the bottom cover, and the fixing block is fixedly installed inside the polygonal groove. The screw head passes through the upper cover, the skeleton mechanism, and the bottom cover and is threadedly connected to the inside of the fixing block.

[0008] Furthermore, both the upper cover and the bottom cover have rubber ring mounting grooves on their outer walls.

[0009] Furthermore, the main structure includes a support layer, the support layer having a plurality of filter holes inside, a transition layer fixedly installed on the inner wall of the filter holes, and a filter layer fixedly installed on the inner wall of the transition layer.

[0010] Furthermore, a protective coating is fixedly installed on the outer wall of the support layer.

[0011] Furthermore, the skeleton mechanism also includes a buffer layer, which is fixedly installed on the inner wall of the mounting groove.

[0012] Furthermore, both the support plate and the buffer layer have several through holes inside.

[0013] The present invention proposes a high-strength silicon carbide ceramic membrane with an internal support structure. The advantages are as follows: several main components are fixed inside the skeleton structure by a fixing mechanism to form a filter element as a whole. The skeleton structure serves as the internal support structure of the equipment, ensuring the overall structural strength of the equipment. At the same time, the skeleton structure also serves as a mounting frame. When some of the main components of the equipment are damaged, the main components can be quickly replaced. This solves the problem that the existing ceramic membranes without internal support have low mechanical strength, are prone to cracking or deformation under high pressure or harsh physical conditions, and have a short service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the skeleton mechanism of this utility model;

[0016] Figure 3 This is a structural development diagram of the present invention;

[0017] Figure 4 This is a schematic diagram of the fixing mechanism of this utility model.

[0018] In the diagram: 1. Skeleton mechanism; 101. Prism; 102. Support plate; 103. Edge sealing; 104. Buffer layer; 105. Through hole; 2. Main body mechanism; 201. Support layer; 202. Filter hole; 203. Transition layer; 204. Filter layer; 205. Protective coating; 3. Fixing mechanism; 301. Top cover; 302. Bottom cover; 303. Fixing rod; 304. Control cap; 305. Fixing block; 306. Polygonal groove; 307. Circular groove; 308. Rubber ring mounting groove; 309. Screw head. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] The structural features of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] See Figures 1-4A high-strength silicon carbide ceramic membrane with an internal support structure includes a skeleton mechanism 1, a fixing mechanism 3, and several main body mechanisms 2. The main body mechanisms 2 are detachably installed inside the skeleton mechanism 1 via the fixing mechanism 3. The skeleton mechanism 1 includes a prism 101 and several support plates 102. The support plates 102 are evenly distributed on the outer wall of the prism 101. A sealing edge 103 is fixedly installed at the end of each support plate 102 away from the prism 101. The prism 101, two sets of adjacent support plates 102, and the outer walls of the two sets of adjacent support plates 102 form an installation groove. The main body 2 is slidably installed inside the mounting groove. The skeleton 1 also includes a buffer layer 104, which is fixedly installed on the inner wall of the mounting groove. The support plate 102 and the buffer layer 104 are both provided with several through holes 105. The buffer layer 104 plays a buffering role between the prism 101, the support plate 102, the sealing edge 103 and the outer wall of the main body 2. The deformation prevents the skeleton 1 from squeezing the main body 2 when it expands and contracts with heat. The through holes 105 reduce the overall weight of the skeleton 1 while ensuring the water permeability of the skeleton 1.

[0024] The fixing mechanism 3 includes an upper cover 301, a bottom cover 302, a fixing rod 303, and a fixing block 305. The upper cover 301 and the bottom cover 302 are respectively set on the upper and lower sides of the frame mechanism 1. An operating cap 304 is fixedly installed on the top of the fixing rod 303, and a screw head 309 is fixedly installed on the bottom of the fixing rod 303. A circular groove 307 is opened on the top of the upper cover 301, and the operating cap 304 is movably installed inside the circular groove 307. A polygonal groove 306 is opened on the bottom of the bottom cover 302, and the fixing block 305 is fixedly installed inside the polygonal groove 306. The screw head 309 passes through the upper cover 301, the frame mechanism 1, and the bottom cover 302 and is threadedly connected to the inside of the fixing block 305. A rubber ring mounting groove 308 is opened on the outer wall of both the upper cover 301 and the bottom cover 302, which facilitates the installation of sealing rings on the outer wall of the fixing mechanism 3.

[0025] The main structure 2 includes a support layer 201, with a plurality of filter holes 202 inside the support layer 201. A transition layer 203 is fixedly installed on the inner wall of the filter holes 202, and a filter layer 204 is fixedly installed on the inner wall of the transition layer 203. A protective coating 205 is fixedly installed on the outer wall of the support layer 201. The support layer 201 provides mechanical strength and support to ensure the stability of the entire membrane structure. The filter layer 204 is directly responsible for the selective permeation of substances. The transition layer 203 separates the support layer 201 and the filter layer 204, serving as a transition between the filter layer 204 and the support layer 201. The protective coating 205 increases the overall durability of the main structure 2.

[0026] This utility model discloses a high-strength silicon carbide ceramic membrane with an internal support structure: several main components 2 are fixed inside the frame structure 1 by a fixing mechanism 3 to form a filter element as a whole. The frame structure 1 serves as the internal support structure of the equipment, ensuring the overall structural strength of the equipment. At the same time, the frame structure 1 also acts as a mounting frame. When some of the main components 2 of the equipment are damaged, the main components 2 can be quickly replaced. This solves the problem that the existing ceramic membranes without internal support have low mechanical strength, are prone to cracking or deformation under high pressure or harsh physical conditions, and have a short service life.

[0027] Specifically, several main body mechanisms 2 are inserted into the interior of the skeleton mechanism 1. Then, the upper cover 301 and the bottom cover 302 are respectively set on the upper and lower sides of the skeleton mechanism 1. Then, the fixing rod 303 is inserted into the interior of the skeleton mechanism 1. The rotating control cap 304 fixes the screw head 309 inside the fixing block 305. Then, the upper cover 301 and the bottom cover 302 press and fix the several main body mechanisms 2 inside the several skeleton mechanisms 1.

[0028] 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 high-strength silicon carbide ceramic membrane with an internal support structure, characterized in that, include: The skeleton mechanism (1), the fixing mechanism (3) and several main mechanisms (2), wherein the several main mechanisms (2) are detachably installed inside the skeleton mechanism (1) through the fixing mechanism (3); The skeleton mechanism (1) includes a prism (101) and several support plates (102). The several support plates (102) are evenly distributed on the outer wall of the prism (101). The end of the support plate (102) away from the prism (101) is fixedly installed with a sealing edge (103). The outer walls of the prism (101), two sets of adjacent support plates (102) and two sets of adjacent support plates (102) form an installation groove. The main body mechanism (2) is slidably installed inside the installation groove.

2. The high-strength silicon carbide ceramic membrane with an internal support structure according to claim 1, characterized in that, The fixing mechanism (3) includes an upper cover (301), a bottom cover (302), a fixing rod (303), and a fixing block (305). The upper cover (301) and the bottom cover (302) are respectively set on the upper and lower sides of the skeleton mechanism (1). The top of the fixing rod (303) is fixedly installed with an operating cap (304), and the bottom of the fixing rod (303) is fixedly installed with a screw head (309). The top of the upper cover (301) is provided with a circular groove (307), and the operating cap (304) is movably installed inside the circular groove (307). The bottom of the bottom cover (302) is provided with a polygonal groove (306), and the fixing block (305) is fixedly installed inside the polygonal groove (306). The screw head (309) passes through the upper cover (301), the skeleton mechanism (1), and the bottom cover (302) and is threadedly connected to the inside of the fixing block (305).

3. A high-strength silicon carbide ceramic membrane with an internal support structure according to claim 2, characterized in that, The outer walls of both the upper cover (301) and the bottom cover (302) are provided with rubber ring mounting grooves (308).

4. A high-strength silicon carbide ceramic membrane with an internal support structure according to claim 1, characterized in that, The main body (2) includes a support layer (201), and a plurality of filter holes (202) are provided inside the support layer (201). A transition layer (203) is fixedly installed on the inner wall of the filter holes (202), and a filter layer (204) is fixedly installed on the inner wall of the transition layer (203).

5. A high-strength silicon carbide ceramic membrane with an internal support structure according to claim 4, characterized in that, The outer wall of the support layer (201) is fixedly fitted with a protective coating (205).

6. A high-strength silicon carbide ceramic membrane with an internal support structure according to claim 1, characterized in that, The skeleton mechanism (1) also includes a buffer layer (104), which is fixedly installed on the inner wall of the mounting groove.

7. A high-strength silicon carbide ceramic membrane with an internal support structure according to claim 6, characterized in that, The support plate (102) and the buffer layer (104) are both provided with several through holes (105).