A disc type ceramic membrane outer circular arc sealing structure
By designing a closed ring and turbulence-inducing tooth structure on the disc-shaped ceramic membrane, the machining quality problem at the arc is solved, the sealing performance and separation efficiency are improved, the service life is extended, and the flow state and cleaning cycle are optimized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FEATURE-TEC (WUXI) FILTRATION TECH CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-07
AI Technical Summary
Existing disc-type ceramic membranes suffer from poor processing quality at the arcs, resulting in low membrane pore precision, poor sealing, and an inability to generate turbulence during high-speed rotation, thus affecting separation efficiency and service life.
A disc-shaped ceramic membrane outer arc-shaped closed structure is designed, which uses a closed ring to cover the arc corner and is equipped with turbulence teeth to improve the sealing performance and improve the fluid distribution through turbulence teeth to form turbulence and prevent clogging.
It improves the sealing performance and separation efficiency of membrane modules, extends service life, reduces contamination and cake buildup, optimizes flow conditions, and extends cleaning cycles.
Smart Images

Figure CN224462555U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ceramic membrane technology, and in particular to a disc-shaped ceramic membrane outer arc closed structure. Background Technology
[0002] The new ceramic membrane filtration technology uses disc-type ceramic membranes as filter elements. Through dynamic cross-flow filtration, it eliminates the concentration polarization layer on the membrane surface, significantly increases shear stress, and enhances the anti-fouling performance of the membrane surface, making it more conducive to the separation, concentration, and purification of high-concentration and high-viscosity materials.
[0003] In practical applications, existing disc-type ceramic membranes suffer from several issues. For example, poor machining quality at the curved edges of the membrane, such as uneven transitions, asymmetry, or eccentricity, leads to low pore precision. This prevents edge channels from effectively participating in the separation process, potentially causing poor membrane module sealing and impurity leakage. Furthermore, the inability to generate turbulence during high-speed rotation results in excessively rapid cake buildup, negatively impacting overall performance. Therefore, it is necessary to propose an improved structure that effectively shields the channels at the curved corners, enhancing membrane module sealing and separation efficiency. Utility Model Content
[0004] The purpose of this utility model is to disclose an outer arc-shaped closed structure for a disc-type ceramic membrane. The structure is reasonably designed and easy to install. The closed ring completely covers the arc corner of the ceramic membrane, which can prevent the edge channels from being exposed, improve the sealing performance and separation efficiency of the membrane module, and extend the service life of the membrane. In addition, the turbulence teeth can agitate the fluid, improve the fluid distribution, optimize the flow state in the cavity, and form turbulence, which can wash the membrane surface, reduce fouling and membrane surface contamination, prevent the filter cake layer from accumulating too quickly and affecting the filtration efficiency, and extend the cleaning cycle and service life.
[0005] To achieve the above objectives, this utility model provides a disc-shaped ceramic membrane outer arc-shaped closed structure, including a ceramic membrane, a closed ring covering the arc angle of the ceramic membrane, and a plurality of turbulence-inducing teeth disposed on the closed ring; the turbulence-inducing teeth include a first turbulence-inducing tooth and a second turbulence-inducing tooth, the first turbulence-inducing tooth and the second turbulence-inducing tooth being symmetrically arranged.
[0006] In some embodiments, the closing ring is bonded to the arc corner of the ceramic membrane.
[0007] In some embodiments, the closing ring and the turbulence-causing teeth are integrally formed.
[0008] In some embodiments, the sealing ring is a corrosion-resistant sealing ring, and the turbulence-resistant teeth are corrosion-resistant turbulence-resistant teeth.
[0009] In some embodiments, the turbulence teeth are arranged at uniform intervals.
[0010] In some embodiments, the turbulence tooth includes a tooth root and a tooth crown, the tooth root and tooth crown being arranged at a certain angle, the included angle being 0-90°.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The disc-shaped ceramic membrane outer arc-shaped closed structure provided by this utility model has a reasonable structural design and is easy to install. The closed ring completely covers the arc corner of the ceramic membrane, which can prevent the edge channels from being exposed, improve the sealing performance and separation efficiency of the membrane module, and extend the service life of the membrane. In addition, the turbulence teeth can agitate the fluid, improve the fluid distribution, optimize the flow state in the cavity, and form turbulence, which can wash the membrane surface, reduce fouling and membrane surface pollution, prevent the filter cake layer from accumulating too quickly and affecting the filtration efficiency, and extend the cleaning cycle and service life. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the outer arc-shaped closed structure of a disc-shaped ceramic membrane according to the present invention. Detailed Implementation
[0013] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent transformations or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the protection scope of the present invention.
[0014] like Figure 1 The diagram illustrates a disc-shaped ceramic membrane outer arc-shaped closed structure, comprising a ceramic membrane 1 and a sealing ring 3. The sealing ring 3 covers the arc corner 2 of the ceramic membrane 1, forming a closed ring structure that completely covers the channels at the arc corner 2, preventing the edge channels from being exposed, improving the sealing performance and separation efficiency of the membrane module, and extending the service life of the membrane.
[0015] The sealing ring 3 is bonded to the arc corner 2 of the ceramic membrane 1 using a high-performance adhesive, ensuring its stability and sealing during operation. The sealing ring 3 and the baffle teeth 4 are integrally formed. The sealing ring 3 is a corrosion-resistant sealing ring, and the baffle teeth 4 are corrosion-resistant baffle teeth, for example, made of PTFE.
[0016] It also includes several turbulence teeth 4 set on the closed ring 3. The turbulence teeth 4 are evenly spaced and can agitate the fluid when the ceramic membrane 1 rotates at high speed, improve the fluid distribution, optimize the flow state in the cavity, form turbulence, and wash the membrane surface, reducing fouling and membrane surface pollution, preventing the filter cake layer from accumulating too quickly and affecting the filtration efficiency, and extending the cleaning cycle and service life.
[0017] The turbulence tooth 4 includes a tooth root 43 and a tooth crown 44, which are arranged at a certain angle of 60°. The angle design balances the fluid disturbance intensity and pressure loss, ensuring the turbulence intensity while avoiding excessive energy consumption.
[0018] The turbulence-inducing teeth 4 include first turbulence-inducing teeth 41 and second turbulence-inducing teeth 42, which are symmetrically arranged. Specifically, four first turbulence-inducing teeth 41 are provided on one half of the ceramic membrane 1, and four second turbulence-inducing teeth 42 are provided on the other half. The symmetrically arranged first turbulence-inducing teeth 41 and second turbulence-inducing teeth 42 can guide the fluid flow in a directional manner, reduce turbulence and boundary layer accumulation, increase the shear force on the membrane surface, enhance the fluid disturbance effect, and significantly enhance the turbulence intensity in the cavity, thereby delaying pollutant deposition and enhancing filtration efficiency.
[0019] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.
[0020] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A disc-shaped ceramic membrane outer arc-shaped closed structure, characterized in that, It includes a ceramic membrane, a closed ring covering the arc corner of the ceramic membrane, and a plurality of turbulence-inducing teeth disposed on the closed ring; the turbulence-inducing teeth include a first turbulence-inducing tooth and a second turbulence-inducing tooth, which are arranged symmetrically.
2. The disc-shaped ceramic membrane outer arc-shaped closed structure according to claim 1, characterized in that, The closed ring is bonded to the arc corner of the ceramic membrane.
3. The disc-shaped ceramic membrane outer arc-shaped closed structure according to claim 2, characterized in that, The closed ring and the turbulence-causing teeth are integrally formed.
4. The disc-shaped ceramic membrane outer arc-shaped closed structure according to claim 3, characterized in that, The closed ring is a corrosion-resistant closed ring, and the turbulence-resistant teeth are corrosion-resistant turbulence-resistant teeth.
5. The disc-shaped ceramic membrane outer arc-shaped closed structure according to claim 1, characterized in that, The turbulence-inducing teeth are arranged at uniform intervals.
6. The disc-shaped ceramic membrane outer arc-shaped closed structure according to claim 5, characterized in that, The turbulence tooth includes a tooth root and a tooth crown, which are arranged at a certain angle, the angle being 0-90°.