Efficient anti-pollution immersed ultrafiltration membrane assembly

Abstract

The utility model provides an efficient anti-pollution immersed ultrafiltration membrane assembly, which relates to the technical field of ultrafiltration membranes and comprises a filter membrane support, an ultrafiltration membrane assembly body is mounted on the inner side of the filter membrane support, limiting frame plates are distributed on the front membrane surface and the rear membrane surface of the ultrafiltration membrane assembly body, and adsorption cavities are formed in the cambered surfaces of the right sides of the limiting frame plates. A sewage suction pipeline is connected to the lower end of the limiting frame plate through a branch hose, a driving plate is welded to the upper end of the limiting frame plate, a waterproof support is fixed to the upper surface of the filter membrane support in a threaded connection mode, the lower end of the waterproof support is connected with the driving plate through an electric sliding table, and stirring rods are connected to the upper end and the lower end of the limiting frame plate in a penetrating mode. Stirring blades are welded to the surface of the stirring rod, an X-shaped rotating disc is installed on the rod face of the upper end of the stirring rod, and the upper ends of the stirring blades are connected with a motor through a coupler. The utility model solves the problem that particles such as suspended solids, colloids, microbiota and the like in a water body are easily deposited on the membrane surface of the existing immersed ultrafiltration assembly, so that the ultrafiltration membrane is polluted.

Description

Technical Field

[0001] This utility model relates to the field of ultrafiltration membrane technology, specifically to a high-efficiency anti-fouling submerged ultrafiltration membrane module. Background Technology

[0002] Submersible ultrafiltration (SUL) is a physical separation process in which fluid flows tangentially across a membrane surface. Driven by relatively low pressure, it separates and filters solutes based on their molecular weight. The pore size range of this technology is approximately 0.02 to 1 micrometer. During the process, dissolved substances and substances smaller than the membrane pore size permeate through the membrane as permeate, while substances that cannot permeate are concentrated in the effluent and discharged through a concentrate discharge system. Residual substances adhering to the membrane are removed by backwashing or chemical cleaning to ensure the membrane's continuous and efficient operation. Submerged ultrafiltration membrane modules are widely used in water treatment technology. They mainly consist of membrane modules, supports, water collection pipes, and aeration devices. They are used to remove suspended solids, colloids, bacteria, and other impurities from water through physical barriers to ensure that the water quality meets the requirements. By completely immersing the module in the water to be treated, the inlet channel is open, and water is drawn in from the outside to the inside by negative pressure. The liquid is physically separated by the membrane pores. Water molecules and small molecules can pass through the membrane pores, while impurities larger than the pore size are trapped, thereby purifying the water. However, existing submerged ultrafiltration modules are prone to the deposition of suspended solids, colloids, and microbial particles on the membrane surface, leading to ultrafiltration membrane fouling. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a high-efficiency anti-fouling submerged ultrafiltration membrane module is provided to solve the problem of ultrafiltration membrane fouling caused by the easy deposition of particles such as suspended solids, colloids and microorganisms in water on the membrane surface of existing submerged ultrafiltration modules.

[0004] To achieve the above objectives, a high-efficiency, anti-fouling submerged ultrafiltration membrane module is provided, comprising: a membrane support, wherein the ultrafiltration membrane module body is mounted on the inner side of the membrane support.

[0005] The ultrafiltration membrane module body has limiting frame plates distributed on both the front and rear membrane surfaces. An adsorption chamber is opened on the right arc surface of the limiting frame plate. The lower end of the limiting frame plate is connected to a suction pipe through a branch hose. A drive plate is welded to the upper end of the limiting frame plate. A water-proof bracket is screwed to the upper surface of the filter membrane support. The lower end of the water-proof bracket is connected to the drive plate through an electric slide. A stirring rod is connected through the upper and lower ends of the limiting frame plate. A stirring blade is welded to the surface of the stirring rod. An X-shaped rotating disk is installed on the upper end of the stirring rod. A motor is connected to the upper end of the stirring blade through a coupling.

[0006] Furthermore, the filter membrane support is a rectangular stainless steel frame; and an ultrafiltration membrane module body is vertically arranged inside the filter membrane support, with a water collection pipe connected to the upper left end of the ultrafiltration membrane module body.

[0007] Furthermore, a water production interface is provided at the rear end of the water collection pipe, an aeration pipe is connected to the lower right end of the ultrafiltration membrane module body, and an aeration interface is provided at the front end of the aeration pipe.

[0008] Furthermore, both the water collection pipe and the aeration pipe are fixedly attached to the inner walls of the left and right sides of the aeration pipe.

[0009] Furthermore, a connecting plate is snapped onto the lower end face of the limiting frame plate, and a suction pipe is attached to the lower surface of the connecting plate; and the connecting plate is slidably connected at the lower end face of the filter membrane support.

[0010] Furthermore, the stirring rod has stirring blades symmetrically and alternately distributed on its rod surface, and the lower end of the adsorption chamber is connected to the sewage suction pipe through a branch hose.

[0011] Furthermore, a fixing plate is welded to the side end of the water-proof bracket, a motor is supported on the upper surface of the fixing plate, and an electric slide is embedded in the lower end face of the water-proof bracket.

[0012] The beneficial effects of this utility model are as follows: The high-efficiency anti-fouling submerged ultrafiltration membrane module of this utility model utilizes a limiting frame plate, a suction pipe, a water-proof support, a drive plate, an electric slide, a stirring rod, an X-shaped rotating disk, and stirring blades to form an adsorption-type stirring mechanism. The electric slide within the water-proof support drives the limiting frame plate and stirring rod on the side of the ultrafiltration membrane module to move horizontally. At the same time, the motor drives multiple X-shaped rotating disks to rotate, causing the stirring rod and stirring blades to rotate and stir the water around the membrane surface. The appropriate shear stress generated by the rotating water removes suspended solids, colloids, and microorganisms deposited on the membrane surface, effectively preventing the accumulation of suspended solids, colloids, and microorganisms on the ultrafiltration membrane surface. This enhances the submerged ultrafiltration membrane module's resistance to fouling and particulate matter deposition, prevents membrane surface fouling, ensures normal water permeability of the submerged ultrafiltration membrane module, guarantees stable filtration of wastewater, reduces the frequency of replacement and cleaning of the submerged ultrafiltration membrane module, and improves wastewater purification efficiency. Attached Figure Description

[0013] Figure 1 This is a top view of the high-efficiency anti-fouling submerged ultrafiltration membrane module according to an embodiment of the present invention.

[0014] Figure 2 This is a top view partial cross-sectional structural diagram of the ultrafiltration membrane assembly and adsorption stirring mechanism according to an embodiment of the present invention.

[0015] Figure 3This is a front view cross-sectional structural diagram of the high-efficiency anti-fouling submerged ultrafiltration membrane module according to an embodiment of the present invention.

[0016] Figure 4 This is a front view cross-sectional structural diagram of the adsorption stirring mechanism according to an embodiment of the present invention.

[0017] Figure 5 This is a three-dimensional structural diagram of the limiting frame plate according to an embodiment of the present utility model.

[0018] In the diagram: 1. Filter membrane support; 2. Ultrafiltration membrane module body; 3. Water collection pipe; 31. Product water interface; 4. Limiting frame plate; 41. Sludge suction pipe; 42. Connecting plate; 43. Adsorption chamber; 44. Branch hose; 5. Water-proof support; 51. Drive plate; 52. Fixing plate; 53. Motor; 54. Electric slide; 6. Stirring rod; 61. X-shaped rotating disk; 62. Stirring blade; 7. Aeration pipe; 71. Aeration interface. Detailed Implementation

[0019] Reference Figures 1 to 5 As shown, this utility model provides a high-efficiency, anti-fouling submerged ultrafiltration membrane module, including: a filter membrane support 1, and an ultrafiltration membrane module body 2 installed inside the filter membrane support 1.

[0020] The ultrafiltration membrane module body 2 has limit frame plates 4 distributed on both the front and rear membrane surfaces. An adsorption chamber 43 is opened on the right arc surface of the limit frame plate 4. The lower end of the limit frame plate 4 is connected to the suction pipe 41 through the branch hose 44. The upper end of the limit frame plate 4 is welded with a drive plate 51. The upper surface of the filter membrane support 1 is screwed with a water-proof support 5. The lower end of the water-proof support 5 is connected to the drive plate 51 through the electric slide table 54. The upper and lower ends of the limit frame plate 4 are connected through a stirring rod 6. The surface of the stirring rod 6 is welded with stirring blades 62. An X-shaped rotating disk 61 is installed on the upper end of the stirring rod 6. The upper end of the stirring blades 62 is connected to a motor 53 through a coupling.

[0021] When the antifouling submersible ultrafiltration membrane module is immersed in a wastewater tank, and suspended solids, colloids, and microbial particles are deposited on the surface of the ultrafiltration membrane, the start-up time of the motor 53 and the electric slide 54 is set by an external controller. This causes the electric slide 54, located at the top of the tank, to drive the drive plate 51 to move horizontally left and right. This, in turn, causes multiple sets of limiting frame plates 4 and stirring rods 6 to move between the ultrafiltration membrane module body 2. Simultaneously, the motor 53 drives the foremost stirring rod 6 to rotate, causing the X-shaped rotating disk 61 on the surface of the foremost stirring rod 6 to rotate. This, in turn, pushes the adjacent X-shaped rotating disks 61 to rotate, causing multiple stirring rods 6 and stirring blades 62 to rotate, thus rotating the area around the membrane surface of the ultrafiltration membrane module body 2. The appropriate shear stress generated by the rotation of the water removes suspended solids, colloids, and microorganisms deposited on the membrane surface. Then, the suspended solids, colloids, and microorganisms rotating and agitated around the membrane surface are sucked away and discharged from the vicinity of the submerged ultrafiltration membrane module through the suction pipe 41 connected to the suction pump. This effectively prevents the accumulation of suspended solids, colloids, and microorganisms on the ultrafiltration membrane surface, enhances the submerged ultrafiltration membrane module's resistance to fouling and particulate matter deposition, prevents membrane surface fouling, ensures normal permeate flux, guarantees stable wastewater filtration, reduces the frequency of replacement and cleaning of the submerged ultrafiltration membrane module, and improves wastewater purification efficiency.

[0022] In this embodiment, the filter membrane support 1 is a rectangular stainless steel frame; and the ultrafiltration membrane assembly body 2 is vertically arranged on the inner side of the filter membrane support 1, and the upper left end of the ultrafiltration membrane assembly body 2 is connected to the water collection pipe 3.

[0023] As a preferred embodiment, the stainless steel filter membrane holder 1 is more corrosion-resistant, allowing it to be submerged in the water requiring filtration and purification for a longer period. The ultrafiltration membrane module body 2 achieves ultrafiltration purification through a physical separation process of fluid flowing tangentially across the membrane surface.

[0024] In this embodiment, a product water interface 31 is provided at the rear end of the water collection pipe 3, and an aeration pipe 7 is connected to the lower right end of the ultrafiltration membrane module body 2. An aeration interface 71 is provided at the front end of the aeration pipe 7. Both the water collection pipe 3 and the aeration pipe 7 are fixedly attached to the inner walls of the left and right sides of the aeration pipe 7.

[0025] In a preferred embodiment, the water collection pipe 3 is connected to the water outlet pipe via the water production interface 31, facilitating the collection and delivery of filtered clean water. The aeration pipe 7 is connected to the aeration equipment via the aeration interface 71, used for gas scrubbing of the ultrafiltration membrane module body 2 to maintain its filtration performance.

[0026] In this embodiment, a connecting plate 42 is snapped onto the lower end face of the limiting frame plate 4, and a suction pipe 41 is attached to the lower surface of the connecting plate 42; the connecting plate 42 is slidably connected at the lower end face of the filter membrane support 1. The stirring rod 6 has stirring blades 62 symmetrically and alternately distributed on its rod face, and the lower end of the adsorption chamber 43 is connected to the suction pipe 41 through a branch hose 44.

[0027] As a preferred embodiment, the suction pipe 41 can be connected to an external suction pump. The suction pump generates suction in the adsorption chamber 43 of the limiting frame plate 4, which removes and transports the water agitated around the ultrafiltration membrane module body 2 into the suction pipe 41. This allows the suction pipe 41 to remove or discharge the water from the area where the submerged ultrafiltration membrane module is located, thereby reducing the amount of suspended solids, colloids, and microorganisms in the water in the area where the submerged ultrafiltration membrane module is located, and reducing the deposition of these particles.

[0028] In this embodiment, a fixing plate 52 is welded to the side of the water-proof bracket 5, a motor 53 is supported on the upper surface of the fixing plate 52, and an electric slide table 54 is embedded in the lower end face of the water-proof bracket 5.

[0029] In a preferred embodiment, the electric slide 54 drives multiple sets of limiting frame plates 4 to move horizontally left and right via the drive plate 51. The motor 53 on the fixed plate 52 is axially connected to the stirring rod 6 at the frontmost side of the ultrafiltration membrane module body 2. The X-shaped rotating disk 61 on the surface of the frontmost stirring rod 6 drives the multiple adjacent X-shaped rotating disks 61 to rotate, thereby achieving the effect of synchronous transmission and rotation of multiple stirring rods 6.

[0030] This invention provides a high-efficiency, anti-fouling submerged ultrafiltration membrane module that effectively solves the problem of ultrafiltration membrane fouling caused by the easy deposition of suspended solids, colloids, and microorganisms on the membrane surface of existing submerged ultrafiltration modules. It effectively prevents the accumulation of these particles on the ultrafiltration membrane surface, enhancing the submerged ultrafiltration membrane module's resistance to fouling and particulate matter deposition, preventing membrane surface fouling, ensuring normal water permeability, guaranteeing stable wastewater filtration, reducing the frequency of replacement and cleaning, and improving wastewater purification efficiency. This invention is suitable for high-efficiency, anti-fouling submerged ultrafiltration membrane modules.

Claims

1. High-efficiency anti-fouling submerged ultrafiltration membrane module, including: A filter membrane support (1), wherein an ultrafiltration membrane assembly body (2) is installed inside the filter membrane support (1), characterized in that: The ultrafiltration membrane module body (2) has limiting frame plates (4) distributed on both the front and rear membrane surfaces. The right arc surface of the limiting frame plate (4) has an adsorption chamber (43). The lower end of the limiting frame plate (4) is connected to a suction pipe (41) through a branch hose (44). The upper end of the limiting frame plate (4) is welded with a drive plate (51). The upper surface of the filter membrane support (1) is screwed with a water-proof support (5). The lower end of the water-proof support (5) is connected to the drive plate (51) through an electric slide (54). The upper and lower ends of the limiting frame plate (4) are connected with a stirring rod (6). The surface of the stirring rod (6) is welded with stirring blades (62). The upper end of the stirring rod (6) is equipped with an X-shaped rotating disk (61). The upper end of the stirring blades (62) is connected to a motor (53) through a coupling.

2. The high-efficiency anti-fouling submerged ultrafiltration membrane module according to claim 1, characterized in that, The filter membrane support (1) is a rectangular stainless steel frame; and the ultrafiltration membrane assembly body (2) is vertically arranged inside the filter membrane support (1), and the upper left end of the ultrafiltration membrane assembly body (2) is connected to a water collection pipe (3).

3. The high-efficiency anti-fouling submerged ultrafiltration membrane module according to claim 2, characterized in that, The water collection pipe (3) is provided with a water production interface (31) at the rear end, and the ultrafiltration membrane module body (2) is connected to an aeration pipe (7) at the lower right end, and the aeration pipe (7) is provided with an aeration interface (71) at the front end.

4. The high-efficiency anti-fouling submerged ultrafiltration membrane module according to claim 3, characterized in that, The water collection pipe (3) and the aeration pipe (7) are both fixedly attached to the inner walls of the left and right sides of the aeration pipe (7).

5. The high-efficiency anti-fouling submerged ultrafiltration membrane module according to claim 1, characterized in that, The lower end face of the limiting frame plate (4) is fitted with a connecting plate (42), and the lower surface of the connecting plate (42) is attached to a suction pipe (41); and the connecting plate (42) is slidably connected to the lower end face of the filter membrane support (1).

6. The high-efficiency anti-fouling submerged ultrafiltration membrane module according to claim 1, characterized in that, The stirring rod (6) has stirring blades (62) symmetrically and alternately distributed on its rod surface, and the lower end of the adsorption chamber (43) is connected to the sewage suction pipe (41) through a branch hose (44).

7. The high-efficiency anti-fouling submerged ultrafiltration membrane module according to claim 1, characterized in that, A fixing plate (52) is welded to the side end of the water-proof bracket (5), a motor (53) is supported on the upper surface of the fixing plate (52), and an electric slide (54) is embedded in the lower end face of the water-proof bracket (5).

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