Reverse osmosis membrane cleaning equipment without damaging membrane
By combining steam, ultrasound, and a drive motor in the cleaning device, the problem of damage to the reverse osmosis membrane by the disc brush assembly was solved, achieving a clean and dry effect without damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-10
AI Technical Summary
In existing technologies, the high-speed rotation of the disc brush assembly can easily damage the reverse osmosis membrane, leading to membrane breakage and affecting subsequent use.
A steam generator, an ultrasonic transducer, and an ultrasonic generator combined with a drive motor are used to clean the reverse osmosis membrane using high-temperature steam and ultrasonic vibration. The drive motor then rotates the membrane on a turntable, and a heating device is used to dry the membrane.
It achieves efficient cleaning and drying of reverse osmosis membranes, avoiding membrane damage and ensuring membrane integrity and subsequent performance.
Smart Images

Figure CN223980354U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reverse osmosis membrane cleaning technology, and in particular to a reverse osmosis membrane cleaning device that does not damage the membrane. Background Technology
[0002] A reverse osmosis membrane is an artificial semi-permeable membrane with specific characteristics, mimicking a biological semi-permeable membrane. It is the core component of reverse osmosis technology. The principle of reverse osmosis is that, under pressure higher than the osmotic pressure of the solution, substances that cannot pass through the semi-permeable membrane are separated from water. The membrane pores of a reverse osmosis membrane are extremely small, thus effectively removing dissolved salts, colloids, microorganisms, and organic matter from water. The system offers advantages such as high water quality, low energy consumption, no pollution, simple process, and easy operation. Its most common application is in water treatment processes, where reverse osmosis removes inorganic ions, bacteria, viruses, organic matter, and colloids from raw water to obtain high-quality purified water. However, after use, the reverse osmosis membrane needs cleaning, requiring reverse osmosis membrane cleaning equipment.
[0003] Chinese Patent Publication No. CN211725376U discloses a dedicated cleaning device for reverse osmosis membranes. The device includes a main body comprising a pair of fixing components, a spraying component, an ultrasonic generator, a brush assembly, a support frame, and a drive motor. The main body is a frame structure with an open top. A support frame is fixedly attached to the top of the main body, and the spraying component and drive motor are fixedly attached to the support frame. The output of the drive motor is connected to the brush assembly via a rotating shaft. An ultrasonic generator is fixedly attached to the bottom of the inner cavity of the main body, and a pair of symmetrical fixing components are fixedly attached to the side walls of the inner cavity. This application utilizes the fixing components to secure the reverse osmosis membrane, facilitating cleaning and offering flexible operation. The spraying component, ultrasonic generator, and brush assembly allow for the removal of contaminants from the reverse osmosis membrane surface via the brush assembly, while the ultrasonic generator enables thorough cleaning of the membrane with excellent results.
[0004] However, the aforementioned patent uses a brush assembly to clean the reverse osmosis membrane during use. The high-speed rotating brush can easily damage the reverse osmosis membrane, leading to membrane breakage and affecting its subsequent use. Utility Model Content
[0005] The purpose of this utility model is to provide a reverse osmosis membrane cleaning device that does not damage the membrane, thus solving the problem of the aforementioned patent, which uses a disc brush assembly to clean the reverse osmosis membrane during use. However, the high-speed rotating disc brush can easily damage the reverse osmosis membrane, leading to membrane breakage and affecting its subsequent use.
[0006] To achieve the above objectives, this utility model provides a reverse osmosis membrane cleaning device that does not damage the membrane, including a cleaning tank, wherein support rods are fixedly connected to the four corners of the top of the cleaning tank.
[0007] This also includes cleaning facilities;
[0008] The cleaning mechanism includes a steam generator, an ultrasonic transducer, and an ultrasonic generator. The steam generator is fixedly connected to the left side wall of the cleaning tank and is connected to the cleaning tank through a pipe. The ultrasonic transducer is fixedly connected to the rear side wall of the inner cavity of the cleaning tank and is electrically connected to the ultrasonic transducer through a wire.
[0009] The inner cavity of the cleaning tank has grooves on its left and right side walls. A turntable is rotatably connected to the inner cavity of the grooves. A clamp is fixedly connected to the inner side wall of the turntable. A drive motor is fixedly connected to the middle of the right side wall of the cleaning tank. The end of the power output shaft of the drive motor passes through the cleaning tank and extends into the inner cavity of the groove on the right side. The end of the power output shaft of the drive motor is fixedly connected to the middle of the right side wall of the turntable on the right side.
[0010] The cleaning tank has an inlet pipe fixedly connected to the upper side of the right side wall, and a drain pipe fixedly connected to the lower side of the right side wall. A valve is fixedly connected to the middle of the outer side wall of the drain pipe via a flange.
[0011] The top of the support rod is fixedly connected to a top plate, and a heating box is fixedly connected to the top right side of the top plate. Heating wires are fixedly connected between the left and right side walls of the inner cavity of the heating box. An air inlet is opened in the middle of the top of the heating box, and a dustproof net is fixedly connected between the inner side walls of the air inlet.
[0012] The top plate is fixedly connected to an electric actuator at its bottom, and a movable plate is fixedly connected to the end of the electric actuator.
[0013] The movable plate has an air outlet frame fixedly connected to the bottom center and an air pump fixedly connected to the top center. The air pump is connected to the air outlet frame and the heating box through a telescopic pipe.
[0014] This utility model discloses a reverse osmosis membrane cleaning device that does not damage the membrane. Cleaning solution is supplied to the cleaning tank through an inlet pipe. Simultaneously, an ultrasonic generator is activated, causing the ultrasonic transducer to convert ultrasonic waves into vibrations, which then clean the reverse osmosis membrane. Subsequently, the cleaning solution in the cleaning tank is discharged through a drain pipe by opening a valve. A steam generator is then activated to supply high-temperature steam to the cleaning tank, which performs a secondary cleaning of the reverse osmosis membrane. Finally, during cleaning, a drive motor rotates a turntable, causing the reverse osmosis membrane held by the clamps to flip, ensuring that both sides of the membrane are better exposed to the high-temperature steam. This allows the device to effectively clean the reverse osmosis membrane without damaging it.
[0015] This utility model discloses a reverse osmosis membrane cleaning device that does not damage the membrane. An electric push rod lowers a movable plate, which then covers the cleaning tank. An electric heating wire is activated, generating hot air inside the heating chamber. An air pump then draws this hot air from the heating chamber and delivers it to an air outlet frame, which discharges the hot air into the cleaning tank. This hot air then dries the reverse osmosis membrane. Finally, a drive motor rotates a turntable, causing the reverse osmosis membrane to continuously rotate, ensuring that the hot air evenly contacts the membrane, thus drying it. This device can dry the reverse osmosis membrane without the need for natural air drying. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.
[0018] Figure 2 This is a front view structural schematic diagram of an embodiment of the present utility model.
[0019] Figure 3 This is a rear view structural schematic diagram of an embodiment of the present utility model.
[0020] Figure 4 This is a schematic diagram of the structure in front cross section of an embodiment of the present invention.
[0021] Figure 5 This is a partial cross-sectional structural schematic diagram of an embodiment of the present invention.
[0022] In the diagram: 100, cleaning tank; 110, steam generator; 120, ultrasonic transducer; 130, ultrasonic generator; 140, groove; 150, turntable; 160, clamp; 170, drive motor; 180, water inlet pipe; 190, drain pipe; 191, valve; 200, support rod; 210, top plate; 220, heating box; 230, heating wire; 240, air inlet; 250, dustproof net; 260, electric actuator; 270, movable plate; 280, air outlet frame; 290, air pump. Detailed Implementation
[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0024] Please see Figures 1-5A reverse osmosis membrane cleaning device that does not damage the membrane includes a cleaning tank 100. Support rods 200 are fixedly connected to the four corners of the top of the cleaning tank 100, and the support rods 200 are used to install a top plate 210. The device also includes a cleaning mechanism, which includes a steam generator 110, an ultrasonic transducer 120, and an ultrasonic generator 130. The steam generator 110 is fixedly connected to the left side wall of the cleaning tank 100 and is connected to the cleaning tank 100 via a pipe. The steam generator 110 is used to generate high-temperature steam. The ultrasonic transducer 120 is fixedly connected to the rear side wall of the inner cavity of the cleaning tank 100 and is used to convert ultrasonic waves into vibrations. An ultrasonic generator 130 is fixedly connected to the rear wall of the cleaning tank 100. The ultrasonic generator 130 is electrically connected to the ultrasonic transducer 120 via a wire. The ultrasonic generator 130 is used to generate ultrasonic waves. Grooves 140 are formed on the left and right side walls of the inner cavity of the cleaning tank 100. The grooves 140 are used to install a turntable 150. The turntable 150 is rotatably connected to the inner cavity of the groove 140. The turntable 150 is used to install a clamp 160. The clamp 160 is fixedly connected to the inner wall of the turntable 150. The clamp 160 is used to clamp the reverse osmosis membrane. A drive motor 170 is fixedly connected to the middle of the right side wall of the cleaning tank 100. The end of the power output shaft of the drive motor 170 passes through the cleaning tank 100 and extends to the right groove. The inner cavity of the 140 is connected to the power output shaft of the drive motor 170, which is fixedly connected to the middle of the right side wall of the right turntable 150. The drive motor 170 is used to drive the turntable 150 to rotate. A water inlet pipe 180 is fixedly connected to the upper side of the right side wall of the cleaning tank 100. The water inlet pipe 180 is used to add cleaning fluid to the cleaning tank 100. A drain pipe 190 is fixedly connected to the lower side of the right side wall of the cleaning tank 100. The drain pipe 190 is used to discharge the cleaning fluid from the cleaning tank 100. A valve 191 is fixedly connected to the middle of the outer side wall of the drain pipe 190 through a flange. The valve 191 is used to open and close the drain pipe 190 and deliver cleaning fluid to the cleaning tank 100 through the water inlet pipe 180. At the same time, the super... The sound generator 130 causes the ultrasonic transducer 120 to convert ultrasonic waves into vibrations, which then clean the reverse osmosis membrane. Subsequently, by opening the valve 191, the cleaning liquid in the cleaning tank 100 is discharged through the drain pipe 190. The steam generator 110 is then activated to supply high-temperature steam to the cleaning tank 100, which is then used to perform a secondary cleaning of the reverse osmosis membrane. Finally, during the cleaning process, the drive motor 170 drives the turntable 150 to rotate, causing the reverse osmosis membrane held by the clamp 160 to flip over. This allows both sides of the reverse osmosis membrane to better contact with the high-temperature steam, enabling the device to effectively clean the reverse osmosis membrane without damaging it.
[0025] A top plate 210 is fixedly connected to the top of the support rod 200. The top plate 210 is used to install the heating box 220 and the electric push rod 260. The heating box 220 is fixedly connected to the top right side of the top plate 210. The heating box 220 is used to install the heating wire 230. The heating wire 230 is fixedly connected between the left and right side walls of the inner cavity of the heating box 220. The heating wire 230 is used to generate hot air. An air inlet 240 is opened in the middle of the top of the heating box 220 for air to enter the heating chamber. In the heating chamber 220, a dustproof net 250 is fixedly connected to the inner wall of the air inlet 240. The dustproof net 250 is used to prevent dust in the air from entering the heating chamber 220. An electric push rod 260 is fixedly connected to the bottom of the top plate 210. The electric push rod 260 is used to drive the movable plate 270 to rise and fall. The end of the electric push rod 260 is fixedly connected to the movable plate 270. The movable plate 270 is used to cover the top of the cleaning tank 100. An air outlet frame 280 is fixedly connected to the middle of the bottom of the movable plate 270. The air frame 280 is used to output hot air. An air pump 290 is fixedly connected to the top center of the movable plate 270. The air pump 290 is connected to the air frame 280 and the heating box 220 via a telescopic pipe. The air pump 290 is used to transport the hot air from the heating box 220 to the air frame 280. The movable plate 270 is lowered by the electric push rod 260, causing it to cover the cleaning tank 100. Then, the heating wire 230 is activated, generating hot air inside the heating box 220, which is then... The air pump 290 draws away the hot air inside the heating box 220 and delivers it to the air outlet frame 280, which discharges the hot air into the cleaning tank 100. The hot air then dries the reverse osmosis membrane. Finally, the drive motor 170 drives the turntable 150 to rotate, causing the reverse osmosis membrane to rotate continuously. This ensures that the hot air can evenly contact the reverse osmosis membrane, thus drying it. As a result, the device can dry the reverse osmosis membrane without the need for natural air drying.
[0026] In practical use, the reverse osmosis membrane is first placed into the cleaning tank 100, and the clamp 160 clamps the membrane. Then, cleaning solution is supplied to the cleaning tank 100 through the inlet pipe 180. Simultaneously, the ultrasonic generator 130 is activated, causing the ultrasonic transducer 120 to convert ultrasonic waves into vibrations, which then clean the reverse osmosis membrane. Subsequently, the cleaning solution in the cleaning tank 100 is discharged through the drain pipe 190 by opening the valve 191. High-temperature steam is then supplied to the cleaning tank 100 by activating the steam generator 110, which performs a secondary cleaning of the reverse osmosis membrane. During the cleaning process, the drive motor 17... The turntable 150 rotates, causing the reverse osmosis membrane held by the clamp 160 to flip, thus allowing the reverse osmosis membrane to be cleaned better. After cleaning, the movable plate 270 is lowered by the electric push rod 260, so that the movable plate 270 covers the cleaning tank 100. Then, the heating wire 230 is activated to generate hot air inside the heating box 220. The hot air inside the heating box 220 is then sucked away by the air pump 290 and transported to the air outlet frame 280, so that the air outlet frame 280 discharges the hot air into the cleaning tank 100, thereby drying the reverse osmosis membrane. Finally, after drying, the reverse osmosis membrane can be removed from the clamp 160.
[0027] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.
Claims
1. A non-membrane reverse osmosis membrane cleaning equipment, comprising a cleaning tank, the top four corners of the cleaning tank are fixedly connected with support rods, characterized in that, It further comprises a cleaning mechanism; The cleaning mechanism comprises a steam generator, an ultrasonic transducer and an ultrasonic generator, the left side wall of the cleaning tank is fixedly connected with the steam generator, the steam generator is communicated with the cleaning tank through a pipeline, the rear side wall of the inner cavity of the cleaning tank is fixedly connected with the ultrasonic transducer, the rear side wall of the cleaning tank is fixedly connected with the ultrasonic generator, and the ultrasonic generator is electrically connected with the ultrasonic transducer through wires.
2. The non-membrane reverse osmosis membrane cleaning equipment according to claim 1, characterized in that, The left and right side walls of the inner cavity of the cleaning tank are provided with grooves, the inner cavity of the groove is rotatably connected with a rotating disc, the inner side wall of the rotating disc is fixedly connected with a clamp, the right side wall of the cleaning tank is fixedly connected with a driving motor, the power output shaft of the driving motor penetrates the cleaning tank and extends to the inner cavity of the groove on the right side, and the power output shaft of the driving motor is fixedly connected to the right side wall of the rotating disc on the right side.
3. The non-membrane reverse osmosis membrane cleaning equipment according to claim 1, characterized in that, The upper side of the right side wall of the cleaning tank is fixedly connected with a water inlet pipe, the lower side of the right side wall of the cleaning tank is fixedly connected with a drain pipe, and the outer side wall of the drain pipe is fixedly connected with a valve through a flange.
4. The non-membrane reverse osmosis membrane cleaning equipment according to claim 1, characterized in that, The top end of the support rod is fixedly connected with a top plate, the top right side of the top plate is fixedly connected with a heating box, the inner cavity of the heating box is fixedly connected with an electric heating wire between the left and right side walls, the top middle of the heating box is provided with an air inlet, and the inner side walls of the air inlet are fixedly connected with a dustproof net.
5. A membrane non-damaging reverse osmosis membrane cleaning apparatus according to claim 4, wherein The bottom of the top plate is fixedly connected with an electric push rod, and the end of the electric push rod is fixedly connected with a movable plate.
6. The non-membrane reverse osmosis membrane cleaning equipment according to claim 5, characterized in that, The bottom middle of the movable plate is fixedly connected with an air outlet frame, the top middle of the movable plate is fixedly connected with an air pump, and the air pump is communicated with the air outlet frame and the heating box through a telescopic pipe.
Citation Information
Patent Citations
Special cleaning equipment for reverse osmosis membrane
CN211725376U