MBR membrane on-line cleaning device
Patent Information
- Application Number
- CN202521311002.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-25
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-06-25
AI Technical Summary
[0003]现有的MBR膜在使用维护过程中存在以下弊端：MBR膜在使用时其外周会截留污泥并沾附在膜料外周，需定期清洗以维持通量及使用寿命，常见的清洁方法是停机，将膜料及其固定架从池体内部取出，然后将膜料分离再进行浸泡和冲洗以达到清洁的目的，清洁过程耗时较长，且膜料的拆卸和安装过程繁琐复杂，为此，我们提出一种MBR膜在线清洗装置
[0011]Compared with the prior art, this utility model has the following advantages: The MBR membrane material is arranged side by side inside the fixed frame through the end pipes at both ends. When the MBR membrane material needs to be cleaned after a period of use, the water inside the tank can be drained, the mounting frame and its internal components can be moved to the top of the fixed frame, and the bottom of the mounting frame can be inserted into the top two sides of the fixed frame. The mounting plate is aligned with the top end pipe of the MBR membrane material, so that the mounting plate is located on both sides of the MBR membrane material. The inlet pipe is connected to the external water supply equipment through the pipeline for cleaning. During the cleaning operation, the water source is turned on, and the external high-pressure water is input through the inlet pipe. After being transported through the internal pipeline, it is sprayed from the nozzle onto the surface of the MBR membrane material. While spraying water, the electric push rod is controlled to move, so that its power end slowly pushes the movable plate and cleaning components down to achieve a comprehensive cleaning of the MBR membrane material from top to bottom. After cleaning one set of membrane materials, the movable plate is reset, and the mounting frame is slid to the position of the mounting plate. Once the plate is aligned with the membrane material to be cleaned, the cleaning operation can continue. This cycle is repeated to complete the cleaning of all membrane materials. Online cleaning of the membrane material can be performed when needed, eliminating the need for frequent disassembly and reassembly. This extends the maintenance interval, reduces the number of times the entire assembly needs to be disassembled for cleaning, and improves cleaning convenience. Base plates are spring-loaded on both sides of the bottom of the movable plate. The bottom of the base plates has arc-shaped clamps corresponding to the specifications of the top end tube of the MBR membrane material. These arc-shaped clamps align perfectly with the positions of the two sides of the top end tube of the membrane material. When the movable plate moves downward, the base plates are pushed down synchronously, and the arc-shaped clamps engage with the two sides of the membrane material end. As the movable plate continues to move downward, the springs are compressed, while the position of the base plates remains unchanged, not affecting the downward movement of the cleaning assembly. During the cleaning process, the arc-shaped clamps engage with the outer periphery of the membrane material end, limiting the movement of the mounting frame and cleaning assembly, preventing them from sliding along the top of the fixed frame and maintaining their stable position during operation.
Smart Images
Figure CN224640788U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment equipment maintenance technology, and in particular to an online cleaning device for MBR membranes. Background Technology
[0002] MBR ultrafiltration membrane is a microporous filtration membrane with a rated pore size range of 0.001-0.02 micrometers. It belongs to the category of polymer separation membranes and is used in wastewater treatment and water resource reuse by combining membrane separation units and biological treatment units. It mainly adopts flat sheet membrane and hollow fiber membrane structures. This membrane separates particles with a diameter greater than 2-20 nanometers in water through physical retention and has a wide range of applications in the field of wastewater treatment.
[0003] Existing MBR membranes have the following drawbacks during use and maintenance: sludge is trapped on the outer periphery of the MBR membrane during use and adheres to the membrane material, requiring regular cleaning to maintain flux and service life. The common cleaning method is to shut down the machine, remove the membrane material and its fixing frame from the tank, then separate the membrane material and soak and rinse it to achieve the purpose of cleaning. The cleaning process is time-consuming, and the disassembly and installation of the membrane material is cumbersome and complicated. Therefore, we propose an online cleaning device for MBR membranes. Utility Model Content
[0004] The main objective of this invention is to provide an online cleaning device for MBR membranes. By using a cleaning mechanism installed at the bottom of the fixed frame, the membrane material can be cleaned online when needed without disassembly, thus extending the maintenance interval and improving cleaning convenience. This effectively solves the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An online cleaning device for MBR membranes includes a fixed frame, MBR membrane material, and a cleaning mechanism. MBR membrane material is equidistantly installed inside the fixed frame. The cleaning mechanism is located on the top of the fixed frame. The cleaning mechanism includes a mounting frame, an electric push rod, a movable plate, a fixed rod, a mounting plate, an inlet pipe, and a spray nozzle. The mounting frame is snapped onto the top of the fixed frame, and the bottom end of the electric push rod is fixed to the center of the top of the mounting frame using fasteners. The power output end of the electric push rod is mounted on a movable plate located inside the mounting frame, and mounting plates are fixedly connected to both sides of the bottom of the movable plate via fixed rods. An inlet pipe connected to an external liquid supply device is located on one side of the top of the movable plate, and spray nozzles are located on opposite sides of the mounting plates.
[0006] Furthermore, it also includes a positioning mechanism. The mounting frame is equipped with a positioning mechanism, which includes a spring, a base plate, and arc-shaped clips. Springs are symmetrically installed on both sides of the bottom of the movable plate and are movably connected to the base plates located on both sides inside the mounting frame. The bottom of each base plate has an integrally formed arc-shaped clip that snaps into the outer periphery of the MBR membrane material end tube. The bottom of the movable plate is equipped with a base plate installed on both sides of the bottom via springs. The bottom of the base plate has an arc-shaped clip corresponding to the specifications of the top end tube of the MBR membrane material. The arc-shaped clips are exactly aligned with the two sides of the top end tube of the membrane material. When the movable plate moves down, the base plate is pushed down synchronously, and the arc-shaped clips snap into the two sides of the membrane material end. Then the movable plate continues to move down, the springs are compressed, and the position of the base plate remains unchanged, which does not affect the downward movement of the cleaning component. At the same time, during the cleaning process, since the arc-shaped clips snap into the outer periphery of the membrane material end, they can limit the mounting frame and the cleaning component, preventing them from sliding along the top of the fixed frame during the cleaning process and maintaining their stable position during operation.
[0007] Furthermore, the mounting bracket has horizontal slots on both sides of its bottom, which are engaged with the top sides of the fixed bracket. The slot structure facilitates the connection between the bottom of the mounting bracket and the top of the fixed bracket, and restricts the position of the mounting bracket.
[0008] Furthermore, each of the fixed rods is equipped with a liquid supply pipe connected to the end of the nozzle. The bottom end of the liquid inlet pipe is provided with a connecting pipe and connected to the end of the liquid supply pipe through the connecting pipe. The liquid inlet pipe is connected to an external water supply device. The supplied clean water enters the liquid supply pipe after passing through the connecting pipe, and is then transported by the liquid supply pipe to the inside of the mounting plate and discharged by the nozzle.
[0009] Furthermore, the inner wall of the mounting frame is provided with vertical grooves on both sides, and the movable plate is fixedly connected to sliders inserted into the grooves on both sides; the grooves and sliders cooperate to limit the movement of the movable plate, so that it can only slide in the vertical direction.
[0010] Furthermore, limit holes are provided at both ends of the movable plate, and limit rods that penetrate the inside of the spring and the limit holes are welded to the top of the base plate; the cooperation of the limit holes and the limit rods ensures that the spring and the base plate assembly will not shift and maintain their stable position.
[0011] Compared with the prior art, this utility model has the following advantages: The MBR membrane material is arranged side by side inside the fixed frame through the end pipes at both ends. When the MBR membrane material needs to be cleaned after a period of use, the water inside the tank can be drained, the mounting frame and its internal components can be moved to the top of the fixed frame, and the bottom of the mounting frame can be inserted into the top two sides of the fixed frame. The mounting plate is aligned with the top end pipe of the MBR membrane material, so that the mounting plate is located on both sides of the MBR membrane material. The inlet pipe is connected to the external water supply equipment through the pipeline for cleaning. During the cleaning operation, the water source is turned on, and the external high-pressure water is input through the inlet pipe. After being transported through the internal pipeline, it is sprayed from the nozzle onto the surface of the MBR membrane material. While spraying water, the electric push rod is controlled to move, so that its power end slowly pushes the movable plate and cleaning components down to achieve a comprehensive cleaning of the MBR membrane material from top to bottom. After cleaning one set of membrane materials, the movable plate is reset, and the mounting frame is slid to the position of the mounting plate. Once the plate is aligned with the membrane material to be cleaned, the cleaning operation can continue. This cycle is repeated to complete the cleaning of all membrane materials. Online cleaning of the membrane material can be performed when needed, eliminating the need for frequent disassembly and reassembly. This extends the maintenance interval, reduces the number of times the entire assembly needs to be disassembled for cleaning, and improves cleaning convenience. Base plates are spring-loaded on both sides of the bottom of the movable plate. The bottom of the base plates has arc-shaped clamps corresponding to the specifications of the top end tube of the MBR membrane material. These arc-shaped clamps align perfectly with the positions of the two sides of the top end tube of the membrane material. When the movable plate moves downward, the base plates are pushed down synchronously, and the arc-shaped clamps engage with the two sides of the membrane material end. As the movable plate continues to move downward, the springs are compressed, while the position of the base plates remains unchanged, not affecting the downward movement of the cleaning assembly. During the cleaning process, the arc-shaped clamps engage with the outer periphery of the membrane material end, limiting the movement of the mounting frame and cleaning assembly, preventing them from sliding along the top of the fixed frame and maintaining their stable position during operation. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of an online cleaning device for MBR membranes according to this utility model.
[0013] Figure 2 This is a schematic diagram of the mounting frame structure of an online cleaning device for MBR membranes according to this utility model.
[0014] Figure 3 This is a schematic diagram showing the disassembled structure of the internal components of the mounting frame of the MBR membrane online cleaning device of this utility model.
[0015] Figure 4 This is a schematic diagram of the internal pipeline connection structure of the movable plate of an online MBR membrane cleaning device according to this utility model.
[0016] In the diagram: 1. Fixing frame; 101. MBR membrane material; 2. Cleaning mechanism; 201. Mounting frame; 202. Slot; 203. Electric push rod; 204. Movable plate; 205. Fixing rod; 206. Mounting plate; 207. Liquid inlet pipe; 208. Liquid supply pipe; 209. Connecting pipe; 210. Spray nozzle; 211. Slide groove; 212. Locking block; 3. Positioning mechanism; 301. Spring; 302. Base plate; 303. Arc-shaped clamp; 304. Limiting hole; 305. Limiting rod. Detailed Implementation
[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0018] like Figure 1-4 As shown, an online cleaning device for MBR membranes includes a fixed frame 1, an MBR membrane material 101, and a cleaning mechanism 2. The MBR membrane material 101 is installed at equal intervals inside the fixed frame 1. The cleaning mechanism 2 is provided on the top of the fixed frame 1. The cleaning mechanism 2 includes a mounting frame 201, an electric push rod 203, a movable plate 204, a fixed rod 205, a mounting plate 206, an inlet pipe 207, and a spray pipe 210. The mounting frame 201 is snapped onto the top of the fixed frame 1, and the bottom end of the electric push rod 203 is fixed to the center position of the top of the mounting frame 201 by fasteners. The power output end of the electric push rod 203 is installed with a movable plate 204 located inside the mounting frame 201, and the bottom sides of the movable plate 204 are fixedly connected to the mounting plate 206 by the fixed rod 205. An inlet pipe 207 connected to an external liquid supply device is provided on one side of the top of the movable plate 204, and a spray pipe 210 is provided on each opposite side of the mounting plates 206.
[0019] The system also includes a positioning mechanism 3. The mounting frame 201 is internally equipped with the positioning mechanism 3, which includes a spring 301, a base plate 302, and an arc-shaped clamp 303. Springs 301 are symmetrically installed on both sides of the bottom of the movable plate 204 and are movably connected to the base plates 302 located on both sides inside the mounting frame 201. Each base plate 302 has an integrally formed arc-shaped clamp 303 at its bottom that engages with the outer periphery of the MBR membrane material 101 end tube. Base plates 302 are installed on both sides of the bottom of the movable plate 204 via springs 301, and the bottom of each base plate 302 has a connection to the top end of the MBR membrane material 101. The arc-shaped clamp 303 corresponds to the pipe specification and is positioned on both sides of the top end of the membrane material. When the movable plate 204 moves down, the base plate 302 is pushed down synchronously, and the arc-shaped clamp 303 is engaged with the two sides of the membrane material end. Then the movable plate 204 continues to move down, the spring 301 is compressed, and the position of the base plate 302 remains unchanged, which does not affect the downward movement of the cleaning component. At the same time, during the cleaning process, since the arc-shaped clamp 303 is engaged with the outer periphery of the membrane material end, it can limit the mounting frame 201 and the cleaning component, preventing them from sliding along the top of the fixed frame 1 during the cleaning process and maintaining their stable position during operation.
[0020] The mounting bracket 201 has horizontal slots 202 on both sides of its bottom, which are engaged with the top sides of the fixing bracket 1. The slots 202 facilitate the docking between the bottom of the mounting bracket 201 and the top of the fixing bracket 1 and limit the position of the mounting bracket 201.
[0021] The fixed rod 205 is equipped with a liquid supply pipe 208 connected to the end of the nozzle 210. The bottom end of the inlet pipe 207 is provided with a connecting pipe 209, which is connected to the end of the liquid supply pipe 208. The inner wall of the mounting frame 201 is provided with vertical grooves 211 on both sides. The movable plate 204 is fixedly connected to both sides with sliders inserted into the grooves 211. The inlet pipe 207 is connected to an external water supply device. The supplied clean water enters the liquid supply pipe 208 after passing through the connecting pipe 209, and is then transported by the liquid supply pipe 208 to the mounting plate 206 and discharged by the nozzle 210. The grooves 211 and the sliders cooperate to limit the movement of the movable plate 204, so that it can only slide in the vertical direction.
[0022] The movable plate 204 has limit holes 304 at both ends, and the bottom plate 302 has a limit rod 305 welded to the top, which penetrates the inside of the spring 301 and the limit hole 304. The combination of the limit hole 304 and the limit rod 305 ensures that the spring 301 and the bottom plate 302 assembly will not shift and will maintain their stable position.
[0023] It should be noted that this utility model is an online cleaning device for MBR membranes. In use, the MBR membrane material 101 is arranged side-by-side inside the fixed frame 1 via end pipes at both ends. When cleaning of the MBR membrane material 101 is required after a period of use, the water inside the tank can be drained. The mounting frame 201 and its internal components are moved to the top of the fixed frame 1, while the bottom of the mounting frame 201 is snapped into the top two sides of the fixed frame 1. The mounting plates 206 are aligned with the top end pipes of the MBR membrane material 101, so that the mounting plates 206 are respectively positioned on the top end pipes of the MBR membrane material. At both sides of 101, the inlet pipes 207 are connected to an external water supply device for cleaning. During cleaning, the water source is turned on, and external high-pressure water is input through the inlet pipes 207. After being transported through the internal pipeline, it is sprayed from the nozzles 210 onto the surface of the MBR membrane material 101. While spraying water, the electric push rod 203 is operated, causing its power end to slowly push the movable plate 204 and the cleaning components downward, so as to achieve a comprehensive cleaning of the MBR membrane material 101 from top to bottom. After cleaning one set of membrane materials, the movable plate 204 is reset and the sliding mounting bracket 201 is moved. The mounting plate 206 is positioned so that it aligns with the membrane material to be cleaned, allowing the cleaning operation to continue. This cycle repeats until all membrane materials are cleaned, enabling online cleaning when needed without frequent disassembly and reassembly. This also extends maintenance intervals, reduces the number of times the entire membrane material needs to be disassembled for cleaning, and improves cleaning convenience. Base plates 302 are mounted on both sides of the bottom of the movable plate 204 via springs 301. The bottom of the base plate 302 has an arc-shaped clamp 303 corresponding to the specifications of the top end tube of the MBR membrane material 101. The arc-shaped clamp 303 fits precisely with the top end of the membrane material. With the two sides of the tube corresponding to each other, when the movable plate 204 moves down, the base plate 302 will be pushed down synchronously, and the arc-shaped clamp 303 will be engaged at both sides of the end of the film material. Then the movable plate 204 continues to move down, the spring 301 is compressed, while the position of the base plate 302 remains unchanged, which does not affect the downward movement of the cleaning component. At the same time, during the cleaning process, since the arc-shaped clamp 303 is engaged at the outer periphery of the end of the film material, it can limit the mounting frame 201 and the cleaning component, preventing them from sliding along the top of the fixed frame 1 during the cleaning process, thus maintaining the stability of their position during operation.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An on-line cleaning device for MBR membranes, comprising a fixing frame (1), characterized in that, It also includes MBR membrane material (101) and a cleaning mechanism (2). The MBR membrane material (101) is installed equidistantly inside the fixing frame (1). The cleaning mechanism (2) is provided on the top of the fixing frame (1). The cleaning mechanism (2) includes a mounting frame (201), an electric push rod (203), a movable plate (204), a fixed rod (205), a mounting plate (206), an inlet pipe (207), and a spray pipe (210). The mounting frame (201) is snapped onto the top of the fixing frame (1) and the electric push rod (205) is attached to the top of the fixing frame (1). 203) The bottom end is fixed to the center of the top of the mounting bracket (201) by fasteners. The power output end of the electric push rod (203) is equipped with a movable plate (204) located inside the mounting bracket (201), and the bottom sides of the movable plate (204) are fixedly connected to the mounting plate (206) by fixing rods (205). The top side of the movable plate (204) is provided with an inlet pipe (207) connected to the external liquid supply equipment, and the mounting plates (206) are provided with nozzles (210) on opposite sides.
2. The online cleaning device for MBR membrane according to claim 1, characterized in that: It also includes a positioning mechanism (3). The mounting frame (201) is provided with a positioning mechanism (3). The positioning mechanism (3) includes a spring (301), a base plate (302) and an arc-shaped clamp (303). The bottom two ends of the movable plate (204) are symmetrically equipped with springs (301) and are movably connected to the base plates (302) located on both sides inside the mounting frame (201) through the springs (301). The bottom of the base plates (302) is integrally formed with arc-shaped clamps (303) that are inserted into the outer periphery of the MBR membrane material (101) end tube.
3. The MBR membrane online cleaning device according to claim 1, characterized in that: The mounting bracket (201) has horizontal slots (202) on both sides of its bottom, and is inserted into the top sides of the fixing bracket (1) through the slots (202).
4. The MBR membrane online cleaning device according to claim 1, characterized in that: Each of the fixed rods (205) is equipped with a liquid supply pipe (208) that is connected to the end of the nozzle (210). The bottom end of the liquid inlet pipe (207) is provided with a connecting pipe (209) and is connected to the end of the liquid supply pipe (208) through the connecting pipe (209).
5. The MBR membrane online cleaning device according to claim 1, characterized in that: The mounting bracket (201) has vertical grooves (211) on both sides of its inner wall, and the movable plate (204) has sliders that are fixedly connected to both sides of the movable plate (204) and inserted into the grooves (211).
6. The MBR membrane online cleaning device according to claim 2, characterized in that: Limiting holes (304) are provided at both ends of the movable plate (204), and limiting rods (305) that penetrate the inside of the spring (301) and the limiting holes (304) are welded to the top of the base plate (302).