Ceramic membrane self-cleaning device

Abstract

The embodiment of the invention discloses a ceramic membrane self-cleaning device which comprises a shell, a water conveying pipe, a ceramic membrane and a rotating assembly, the water conveying pipe is connected with the shell so as to be used for conveying water into the shell, the ceramic membrane is arranged in the shell, and the rotating assembly is arranged on the ceramic membrane. A channel is formed in the ceramic membrane, the ceramic membrane is communicated with the water conveying pipe so that water in the water conveying pipe can be discharged outwards after being filtered by the ceramic membrane, the rotating assembly is arranged on the water conveying pipe and can rotate relative to the water conveying pipe, and the rotating assembly rotates in a reciprocating mode so that the water flow pressure in the water conveying pipe can be adjusted. And the impact plate is used for impacting pollutants attached to the inner side surface of the channel. The ceramic membrane self-cleaning device disclosed by the embodiment of the invention is beneficial to loosening and removing pollutants in the channel through the change of water flow pressure, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of ceramic membrane technology, and more specifically to a ceramic membrane self-cleaning device. Background Technology

[0002] In the field of wastewater treatment, ceramic membrane separation technology is widely used due to its advantages such as high efficiency, stability, and resistance to chemical corrosion. However, ceramic membranes often face fouling problems during use. This is mainly due to the deposition of pollutants such as suspended solids, organic matter, and microorganisms in the wastewater on the membrane surface and in the pores, leading to a decrease in membrane flux and thus affecting the treatment effect and the membrane's service life. To solve this problem, regular cleaning of the membrane is usually required to remove pollutants adhering to the membrane surface.

[0003] In related technologies, ceramic membrane cleaning technologies mainly include physical cleaning and chemical cleaning. Physical cleaning typically includes methods such as backwashing, air washing, and ultrasonic cleaning, while chemical cleaning involves using various chemical agents to dissolve or decompose contaminants. However, these cleaning methods all have certain limitations. For example, backwashing may be ineffective because contaminants are tightly bound to the membrane surface; air washing and ultrasonic cleaning may be uneconomical due to high energy consumption; and chemical cleaning may cause secondary pollution to the environment due to the use of chemical agents. Therefore, related ceramic membrane designs often lack effective self-cleaning mechanisms, making it easy for contaminants to accumulate on the membrane during long-term operation, leading to increased cleaning frequency and higher operating costs. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a ceramic membrane self-cleaning device. This device uses the reciprocating rotation of a rotating component to alternately increase or decrease the water pressure in the channel. The change in water pressure helps to loosen and remove contaminants in the channel, improving cleaning efficiency. Due to the self-cleaning mechanism, the reliance on chemical cleaning can be reduced, the amount of chemical agents used can be reduced, thereby reducing secondary pollution to the environment, reducing cleaning frequency and chemical agent consumption, and thus reducing operating costs.

[0006] The ceramic membrane self-cleaning device of this invention includes a housing, a water supply pipe, a ceramic membrane, and a rotating assembly. The water supply pipe is connected to the housing for supplying water into the housing. The ceramic membrane is disposed inside the housing, and has a channel that communicates with the water supply pipe so that the water in the water supply pipe can be filtered by the ceramic membrane and discharged outward. The rotating assembly is disposed on the water supply pipe and is rotatable relative to the water supply pipe. The rotating assembly reciprocates to adjust the water flow pressure in the water supply pipe to impact contaminants attached to the inner surface of the channel.

[0007] In use, the ceramic membrane self-cleaning device of this invention has a housing as the main body, connected to a water supply pipe, which houses the ceramic membrane and a rotating assembly. The water supply pipe delivers the water to be treated into the housing. The ceramic membrane, located inside the housing, has filtration channels that are connected to the water supply pipe. When water enters the housing through the water supply pipe, the water flows through the filtration channels of the ceramic membrane, achieving water purification. The rotating assembly, through reciprocating rotation, can adjust the water pressure in the water supply pipe. When the rotating assembly rotates, the change in water pressure generates shock waves within the channels of the ceramic membrane. These shock waves effectively impact contaminants adhering to the inner surface of the channels, thereby achieving a self-cleaning effect.

[0008] Compared with related technologies, the reciprocating rotation of the rotating component causes the water pressure in the channel to rise and fall alternately. The change in water pressure helps to loosen and remove contaminants in the channel, improving cleaning efficiency. Due to the self-cleaning mechanism, the reliance on chemical cleaning can be reduced, thus reducing the amount of chemical agents used and thereby reducing secondary pollution to the environment. The frequency of cleaning and consumption of chemical agents are reduced, thereby lowering operating costs. This helps to maintain the long-term stable operation of the ceramic membrane and avoids the decline in treatment effect caused by membrane fouling. Thus, it solves the technical problem that "related ceramic membrane designs often lack effective self-cleaning mechanisms, which makes the membrane prone to the accumulation of contaminants during long-term operation, leading to increased cleaning frequency and higher operating costs."

[0009] In some embodiments, the rotating component of the ceramic membrane self-cleaning device of the present invention includes a rotating rod and a rotating diaphragm; the rotating rod passes through the water supply pipe and is rotatable relative to the water supply pipe; the rotating diaphragm is located inside the water supply pipe and connected to the rotating rod, and the rotating diaphragm rotates to adjust the water flow pressure inside the water supply pipe.

[0010] In some embodiments, the housing of the ceramic membrane self-cleaning device of the present invention includes a cylindrical body, an upper cover, a lower cover, a first cover, and a second cover; the cylindrical body is used to hold the ceramic membrane; the upper cover is connected to the top of the cylindrical body; the lower cover is connected to the bottom of the cylindrical body; the first cover is disposed inside the upper cover and connected to the upper cover; the second cover is disposed inside the lower cover and connected to the lower cover; the ceramic membrane is connected to the first cover and the second cover; the second cover has a chamber that communicates with the channel; and a water supply pipe passes through the lower cover and communicates with the chamber to supply water into the channel.

[0011] In some embodiments, the second cover of the ceramic membrane self-cleaning device of the present invention has an exhaust port for discharging gas from the outside of the rotating diaphragm.

[0012] In some embodiments, the ceramic membrane self-cleaning device of the present invention further includes a backwashing component, which is disposed on the housing and used to deliver backwashing water into the channel. The flow direction of the backwashing water is opposite to the water delivery direction of the water supply pipe. The backwashing component can be coupled to the rotating component.

[0013] In some embodiments, the backwashing assembly of the ceramic membrane self-cleaning device of the present invention includes a cleaning water pipe and a blocking assembly; the cleaning water pipe passes through the housing and communicates with the channel for conveying backwash water into the channel; the blocking assembly passes through the housing so that the backwash water flowing into the channel can be discharged through the blocking assembly.

[0014] In some embodiments, the ceramic membrane self-cleaning device of the present invention further includes a turbulence-disrupting component disposed within the channel. The turbulence-disrupting component includes a turbulence-disrupting ball that is rotatable relative to the channel and is rotated by the impact of water flow.

[0015] In some embodiments, the blocking member of the ceramic membrane self-cleaning device of the present invention is disposed inside the water supply pipe and located below the rotating assembly to limit changes in water flow pressure to occur only on one side of the ceramic membrane.

[0016] In some embodiments, the cleaning component of the ceramic membrane self-cleaning device of the present invention is disposed in the housing, the cleaning end of the cleaning component can extend into the channel and can be connected to the inner side of the channel, and the cleaning end of the cleaning component is movable relative to the ceramic membrane to remove contaminants attached to the inner side of the channel.

[0017] In some embodiments, the ceramic membrane self-cleaning device of the present invention further includes an inlet pipe, a drain pipe, and an outlet pipe. The inlet pipe is connected to the water supply pipe for supplying water into the water supply pipe. The drain pipe is connected to the housing so that water filtered by the ceramic membrane can be discharged through the drain pipe. The outlet pipe is connected to the drain pipe so that water in the drain pipe can be discharged through the outlet pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the ceramic membrane self-cleaning device according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the turbulence component of the ceramic membrane self-cleaning device according to an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the backwashing component of the ceramic membrane self-cleaning device according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the rotating diaphragm of the ceramic membrane self-cleaning device according to an embodiment of the present invention.

[0022] Figure label: 1. Shell; 101. Cylinder; 102. Upper cover; 103. Lower cover; 104. First cover; 105. Second cover; 1051. Chamber; 1052. Exhaust port; 2. Water supply pipe; 3. Ceramic membrane; 301. Channel; 4. Rotating assembly; 401. Rotating rod; 402. Rotating diaphragm; 403. Drive motor; 5. Turbulence assembly; 501. Turbulence ball; 502. Support frame; 6. Blocking component; 7. Backwash assembly; 701. Cleaning water pipe; 702. Blocking assembly; 7021. Backwash pipe; 7022. Throttle valve; 8. Cleaning assembly; 801. Drive telescopic electric cylinder; 802. Insert rod; 803. Annular brush bristles; 9. Water inlet pipe; 10. Drain pipe; 11. Water outlet pipe. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] Reference Figures 1-4 The ceramic membrane self-cleaning device of this invention includes a housing 1, a water supply pipe 2, a ceramic membrane 3, and a rotating assembly 4. The water supply pipe 2 is connected to the housing 1 to supply water into the housing 1. The ceramic membrane 3 is disposed inside the housing 1, and has a channel 301 that communicates with the water supply pipe 2 so that water in the water supply pipe 2 can be filtered through the ceramic membrane 3 and discharged externally. The rotating assembly 4 is disposed on the water supply pipe 2 and is rotatable relative to the water supply pipe 2. The rotating assembly 4 reciprocates to adjust the water flow pressure inside the water supply pipe 2, thereby impacting contaminants adhering to the inner surface of the channel 301.

[0025] In use, the ceramic membrane self-cleaning device of this invention has a housing 1 as the main body of the device, which is connected to a water supply pipe 2 and is used to house the ceramic membrane 3 and the rotating component 4. The water supply pipe 2 is responsible for transporting the water to be treated into the housing 1. The ceramic membrane 3 is located inside the housing 1 and has filter channels 301. These channels 301 are connected to the water supply pipe 2. When water enters the housing 1 through the water supply pipe 2, the water flow will pass through the filter channels 301 of the ceramic membrane 3 to achieve water purification. The rotating component 4 is designed to adjust the water flow pressure in the water supply pipe 2 by reciprocating rotation. When the rotating component 4 rotates, the change in water flow pressure will generate shock waves in the channels 301 of the ceramic membrane 3. These shock waves can effectively impact the pollutants attached to the inner surface of the channels 301, thereby achieving a self-cleaning effect.

[0026] Compared with related technologies, the reciprocating rotation of the rotating component 4 causes the water pressure in the channel 301 to alternately increase or decrease. The change in water pressure helps to loosen and remove contaminants in the channel 301, improving cleaning efficiency. Due to the self-cleaning mechanism, the reliance on chemical cleaning can be reduced, the amount of chemical agents used can be reduced, thereby reducing secondary pollution to the environment. The frequency of cleaning and consumption of chemical agents are reduced, thus lowering operating costs. This helps to maintain the long-term stable operation of the ceramic membrane 3 and avoids the decline in treatment effect caused by membrane fouling. Thus, it solves the technical problem that "related ceramic membrane 3 designs often lack an effective self-cleaning mechanism, which makes the membrane prone to accumulating contaminants during long-term operation, leading to increased cleaning frequency and increased operating costs."

[0027] In some embodiments, such as Figure 2 and Figure 4 As shown, the rotating assembly 4 of the ceramic membrane self-cleaning device of this embodiment includes a rotating rod 401 and a rotating diaphragm 402. The rotating rod 401 passes through the water supply pipe 2 and is rotatable relative to the water supply pipe 2. The rotating diaphragm 402 is located inside the water supply pipe 2 and connected to the rotating rod 401. The rotating diaphragm 402 rotates to adjust the water flow pressure inside the water supply pipe 2. Through the periodic rotation of the rotating diaphragm 402, dynamic changes in water flow pressure can be generated inside the water supply pipe 2. This pressure fluctuation helps to loosen and remove contaminants on the ceramic membrane 3.

[0028] Cleaning by adjusting the water pressure can reduce physical damage to the ceramic membrane 3, thereby extending the service life of the ceramic membrane 3.

[0029] Optionally, a drive motor 403 is provided on the housing 1. The output end of the drive motor 403 is fixedly connected to the rotating rod 401, thereby driving the rotation of the rotating rod 401.

[0030] Optionally, the rotating diaphragm 402 is a flexible diaphragm. A flexible diaphragm can better adapt to changes in the inner diameter of the water pipe 2, as well as the contact with the pipe wall during rotation, thereby reducing leakage and friction.

[0031] In some embodiments, such as Figure 1As shown, the housing 1 of the ceramic membrane self-cleaning device of this embodiment includes a cylindrical body 101, an upper cover 102, a lower cover 103, a first cover 104, and a second cover 105. The cylindrical body 101 is used to hold the ceramic membrane 3. The upper cover 102 is connected to the top of the cylindrical body 101. The lower cover 103 is connected to the bottom of the cylindrical body 101. The first cover 104 is disposed inside the upper cover 102 and connected to the upper cover 102. The second cover 105 is disposed inside the lower cover 103 and connected to the lower cover 103. The ceramic membrane 3 is connected to the first cover 104 and the second cover 105. The second cover 105 has a chamber 1051 that communicates with a channel 301. A water supply pipe 2 passes through the lower cover 103 and communicates with the chamber 1051 to supply water into the channel 301. The water supply pipe 2 passes through the lower cover 103 and connects to the chamber 1051, which can ensure that the water flow impacts the ceramic membrane 3 with appropriate pressure and flow rate, thereby enhancing the self-cleaning effect.

[0032] Optionally, the drive motor 403 is located on the lower cover 103, and the rotating diaphragm 402 and the rotating rod 401 are located inside the chamber 1051, making the overall structure more reasonable.

[0033] In some embodiments, such as Figure 2 As shown, the second cover 105 of the ceramic membrane self-cleaning device in this embodiment of the invention has an exhaust port 1052 for discharging gas from the outside of the rotating diaphragm 402. Discharging gas through the exhaust port 1052 reduces the interference of gas on the water flow, allowing the water flow to more effectively impact contaminants on the ceramic membrane 3.

[0034] In some embodiments, such as Figure 2 As shown, the ceramic membrane self-cleaning device of this embodiment of the invention also includes a backwashing component 7. The backwashing component 7 is disposed in the housing 1 and is used to deliver backwashing water into the channel 301. The water flow direction of the backwashing water is opposite to the water delivery direction of the water supply pipe 2. The backwashing component 7 can be fitted onto the rotating component 4.

[0035] The backwashing assembly 7 effectively removes contaminants from the surface of the ceramic membrane 3 and within the channel 301 by supplying backwash water in the opposite direction to the water supply direction of the water pipe 2, thus improving cleaning efficiency. By using the backwashing assembly 7 in conjunction with the rotating assembly 4 to adjust the flow channel capacity, alternating changes in water pressure are achieved during filtration and backwashing. On one hand, during filtration of the ceramic membrane 3, dynamic pressure changes effectively reduce contaminant adhesion to the membrane surface and slow down flux decay; on the other hand, during backwashing of the ceramic membrane 3, the periodic compression of the assembly causes the water pressure to alternately increase or decrease, creating turbulence and enhancing the ability to remove contaminants from the membrane surface, thereby improving cleaning efficiency.

[0036] In some embodiments, such as Figure 2and Figure 3 As shown, the backwashing assembly 7 of the ceramic membrane self-cleaning device of this embodiment includes a cleaning water pipe 701 and a blocking assembly 702. The cleaning water pipe 701 passes through the housing 1 and communicates with the channel 301 to deliver backwash water into the channel 301. The blocking assembly 702 passes through the housing 1 to allow the backwash water flowing into the channel 301 to be discharged through the blockage. The design of the cleaning water pipe 701 ensures that the backwash water can be directly delivered into the channel 301 of the ceramic membrane 3, providing an effective backwash water flow that helps loosen and remove contaminants. The cleaning water pipe 701 provides sufficient water volume for backwashing, ensuring cleaning efficiency. In use, the cleaning water pipe 701 is connected to an external cleaning water jug. The design of the blocking assembly 702 allows backwash water to pass through, and the blocking assembly 702 prevents backwash water from flowing back, protecting the system from secondary contamination by contaminants.

[0037] Optionally, the blocking assembly 702 includes a backwash pipe 7021 and a throttle valve 7022. The throttle valve 7022 is disposed on the backwash pipe 7021. One end of the backwash pipe 7021 communicates with the chamber 1051, and the other end connects to the gap between the inner wall of the housing 1 and the outer surface of the ceramic membrane 3. Cleaning water flows through the backwash pipe 7021 to the outer surface of the ceramic membrane 3, carrying away the detached contaminants. The throttle valve 7022 is used to precisely control the direction and flow rate of the backwash water, ensuring the high efficiency of the backwashing process. The blocking assembly 702 prevents backwash water from flowing backward, while the throttle valve 7022 optimizes the speed and pressure of the backwash water flow by adjusting its opening, ensuring that it effectively removes contaminants without damaging the ceramic membrane 3.

[0038] In some embodiments, such as Figure 2 As shown, the self-cleaning device for the ceramic membrane 3 in this embodiment of the invention further includes a turbulence-inducing component 5, which is disposed within the channel 301. The turbulence-inducing component 5 includes a turbulence-inducing ball 501 that is rotatable relative to the channel 301. The turbulence-inducing ball 501 rotates under the impact of water flow. When water flows through the inlet channel 301, the turbulence-inducing ball 501 rotates due to the impact of the water flow. The rotational motion of the turbulence-inducing ball 501 generates local turbulence within the inlet channel 301. This turbulence can further enhance the disturbance effect on the inner wall of the columnar ceramic membrane 3, thereby reducing the deposition of pollutants on the inner wall of the membrane. In addition, the rotation of the turbulence-inducing ball 501 can also change the direction and velocity distribution of the water flow, forming a more complex and smooth structure, further improving the antifouling performance of the membrane surface.

[0039] Optionally, the spoiler assembly 5 also includes a support frame 502, which is located in the channel 301. The spoiler ball 501 is located on the support frame 502 and is rotatable relative to the support frame 502. The support frame 502 supports and installs the spoiler ball 501.

[0040] In some embodiments, such as Figure 2 As shown, in this embodiment of the invention, the blocking member 6 of the self-cleaning device for the ceramic membrane 3 is disposed inside the water supply pipe 2 and located below the rotating assembly 4 to limit changes in water pressure to occur only on one side of the ceramic membrane 3. The presence of the blocking member 6 ensures that changes in water pressure act only on one side of the ceramic membrane 3, thereby avoiding membrane damage that may be caused by pressure imbalance on both sides. This allows for directional impact on contaminants within the ceramic membrane 3, improving cleaning efficiency.

[0041] In some embodiments, such as Figure 3 As shown, the cleaning component 8 of the self-cleaning device for the ceramic membrane 3 in this embodiment of the invention is disposed in the housing 1. The cleaning end of the cleaning component 8 can extend into the channel 301 and can be connected to the inner side of the channel 301. The cleaning end of the cleaning component 8 is movable relative to the ceramic membrane 3 to remove contaminants attached to the inner side of the channel 301. The cleaning end of the cleaning component 8 directly contacts the inner wall of the ceramic membrane 3 and removes the attached contaminants by mechanical scraping. The reciprocating motion of the cleaning end covers the entire length of the channel 301, ensuring that the contaminants on the inner wall of the ceramic membrane 3 can be completely removed. In addition, the design of the cleaning component 8 also takes into account the hydrodynamic characteristics. Its internal cleaning end can generate additional turbulence during movement, further enhancing the cleaning efficiency.

[0042] Optionally, the cleaning assembly 8 includes a drive telescopic electric cylinder 801, a rod 802, and an annular brush 803. The drive telescopic electric cylinder 801 is disposed on the first cover 104, the rod 802 passes through the first cover 104 and can be inserted into the channel 301, the rod 802 is fixedly connected to the telescopic end of the drive telescopic electric cylinder 801, and the annular brush 803 is disposed on the rod 802. The reciprocating motion of the drive telescopic electric cylinder 801 enables the annular brush 803 to clean contaminants on the inner surface of the channel 301. The annular brush 803 can also be replaced with blades.

[0043] In some embodiments, such as Figure 1 As shown, the self-cleaning device of the ceramic membrane 3 in this embodiment of the invention further includes an inlet pipe 9, a drain pipe 10, and an outlet pipe 11. The inlet pipe 9 is connected to the water supply pipe 2 to deliver water into the water supply pipe 2. The drain pipe 10 is connected to the housing 1 so that water filtered by the ceramic membrane 3 can be discharged through the drain pipe 10. The outlet pipe 11 is connected to the drain pipe 10 so that water in the drain pipe 10 can be discharged through the outlet pipe 11. The connection between the inlet pipe 9 and the water supply pipe 2 ensures a stable water supply, while the connection between the drain pipe 10 and the outlet pipe 11 ensures that the filtered water can be discharged smoothly, forming an efficient water circulation system.

[0044] Optionally, multiple housings 1 and ceramic membranes 3 can be installed between the inlet pipe 9 and the outlet pipe 11 to improve filtration efficiency.

[0045] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0050] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A ceramic membrane self-cleaning device, characterized in that, include: Shell (1); Water supply pipe (2), which is connected to the housing (1) for supplying water into the housing (1); A ceramic membrane (3) is disposed inside the housing (1). The ceramic membrane (3) has a channel (301) and is connected to the water supply pipe (2) so that the water in the water supply pipe (2) can be filtered by the ceramic membrane (3) and discharged to the outside. Rotating component (4), which is located on the water supply pipe (2) and is rotatable relative to the water supply pipe (2), the rotating component (4) reciprocates to adjust the water flow pressure in the water supply pipe (2) to impact the pollutants attached to the inner side of the channel (301).

2. The ceramic membrane self-cleaning device according to claim 1, characterized in that, The rotating assembly (4) includes: A rotating rod (401) is inserted through the water pipe (2) and is rotatable relative to the water pipe (2); A rotating diaphragm (402) is located inside the water supply pipe (2) and connected to the rotating rod (401). The rotating diaphragm (402) rotates to adjust the water flow pressure inside the water supply pipe (2).

3. The ceramic membrane self-cleaning device according to claim 1, characterized in that, The housing (1) includes: A cylindrical body (101) is used to hold the ceramic membrane (3). The upper cover (102) is connected to the top of the cylinder (101); The lower cover (103) is connected to the bottom of the cylinder (101); The first cover (104) is disposed inside the upper cover (102) and connected to the upper cover (102); The second cover (105) is located inside the lower cover (103) and connected to the lower cover (103). The ceramic membrane (3) is connected to the first cover (104) and the second cover (105). The second cover (105) has a chamber (1051) inside and the chamber (1051) is connected to the channel (301). The water pipe (2) passes through the lower cover (103) and is connected to the chamber (1051) to deliver water to the channel (301).

4. The ceramic membrane self-cleaning device according to claim 3, characterized in that, The second cover (105) has an exhaust port (1052) for discharging gas from the outside of the rotating diaphragm (4012).

5. The ceramic membrane self-cleaning device according to claim 1, characterized in that, It also includes a backwashing assembly (7), which is located in the housing (1) and is used to deliver backwash water into the channel (301). The flow direction of the backwash water is opposite to the flow direction of the water supply pipe (2). The backwashing assembly (7) can be fitted onto the rotating assembly (401).

6. The ceramic membrane self-cleaning device according to claim 5, characterized in that, The backwashing assembly (7) includes: A cleaning water pipe (701) is provided through the housing (1) and communicates with the channel (301) for conveying backwash water into the channel (301); A blocking assembly (702) is provided through the housing (1) so that backwash water flowing into the channel (301) can be discharged through the blocking assembly (702).

7. The ceramic membrane self-cleaning device according to claim 1, characterized in that, It also includes a turbulence-disrupting component (5), which is disposed within the channel (301). The turbulence-disrupting component (5) includes a turbulence-disrupting ball (501) that is rotatable relative to the channel (301). The turbulence-disrupting ball (501) is rotated by the impact of water flow.

8. The ceramic membrane self-cleaning device according to claim 1, characterized in that, It also includes a blocking element (6), which is disposed inside the water pipe (2) and located below the rotating assembly (401) to limit the change in water flow pressure to occur only on one side of the ceramic membrane (3).

9. The ceramic membrane self-cleaning device according to claim 1, characterized in that, It also includes a cleaning component (8) disposed in the housing (1). The cleaning end of the cleaning component (8) can extend into the channel (301) and can be connected to the inner side of the channel (301). The cleaning end of the cleaning component (8) is movable relative to the ceramic membrane (3) to remove contaminants attached to the inner side of the channel (301).

10. The ceramic membrane self-cleaning device according to any one of claims 1-9, characterized in that, Also includes: Water inlet pipe (9), which is connected to water delivery pipe (2) for conveying water into water delivery pipe (2); A drain pipe (10) is connected to the housing (1) so that water filtered by the ceramic membrane (3) can be discharged through the drain pipe (10); The outlet pipe (11) is connected to the drain pipe (9) so that water in the drain pipe (10) can be discharged through the outlet pipe (11).

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