Anti-pollution MBR membrane device with self-cleaning function

Abstract

The utility model discloses an anti-pollution type MBR membrane device with a self-cleaning function, which comprises a device frame body, a water producing pipe is fixedly arranged on the device frame body, an upper water collecting pipe and a lower water collecting pipe are respectively and fixedly arranged at the top and the bottom of one side of the water producing pipe, and membrane wires are arranged between the upper water collecting pipe and the lower water collecting pipe. A branch pipe four-way piece is fixedly mounted at the upper end of the water production pipe, and a suction pipe, a back-flushing air pipe and a back-flushing water pipe are further mounted on the branch pipe four-way piece; compared with the prior art, the MBR membrane device has the advantages that the branch pipe four-way piece is arranged at the upper end of the water production pipe of the device frame body, and the suction pipe, the back-flushing gas pipe and the back-flushing water pipe are arranged, so that the MBR membrane device has a good gas-water combined back-flushing function, the self-cleaning effect is good, and the replacement frequency of the membrane can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of MBR membrane technology, specifically to an anti-fouling MBR membrane device with self-cleaning function. Background Technology

[0002] MBR membranes combine traditional bioreactors and membrane filtration technology to effectively remove suspended solids, microorganisms, and organic matter from wastewater. However, over time, sludge adheres to the membrane surface. As wastewater undergoes biological treatment in the membrane bioreactor, microorganisms degrade organic matter, forming sludge. These microorganisms and sludge particles remain suspended in the water and gradually deposit and accumulate on the membrane surface. Over time, this deposition process leads to the formation of a sludge film on the membrane surface, gradually reducing membrane permeability. Currently, traditional MBR membrane devices have unsatisfactory self-cleaning effects, relying solely on bottom-laid aeration pipes for decontamination. If the membrane fibers become fouled after long-term use, the entire membrane module needs to be disassembled for manual or equipment cleaning, which is inconvenient. Therefore, this invention proposes a fouling-resistant MBR membrane device with self-cleaning function. Utility Model Content

[0003] The purpose of this invention is to provide a fouling-resistant MBR membrane device with self-cleaning function to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a self-cleaning, anti-fouling MBR membrane device, comprising a device frame, on which a permeate pipe is fixedly installed. An upper water collection pipe and a lower water collection pipe are fixedly installed on the top and bottom of one side of the permeate pipe, respectively, and membrane fibers are installed between the upper and lower water collection pipes. A branch pipe four-way connector is fixedly installed at the upper end of the permeate pipe, and a suction pipe, a backwash air pipe, and a backwash water pipe are also installed on the branch pipe four-way connector.

[0005] As a preferred technical solution of this utility model, electric valves are installed on the suction pipe, backflush air pipe and backflush water pipe.

[0006] As a preferred technical solution of this utility model, the membrane filaments are in multiple groups, and the upper end of each group of membrane filaments is connected to a telescopic hose. An installation sleeve is fixedly sleeved on the outer surface of each group of telescopic hoses, and adjacent groups of installation sleeves are movably connected by a vibrating element.

[0007] As a preferred technical solution of this utility model, the two ends of the mounting sleeve are respectively provided with a first connecting piece and a second connecting piece, and the first connecting piece and the second connecting piece are fixedly bonded to each other.

[0008] As a preferred technical solution of this utility model, the vibrating element includes a sleeve and a movable column that are movably connected to each other, and the sleeve and the movable column are movably connected by a spring.

[0009] As a preferred technical solution of this utility model, an aeration pipe is provided below the lower water collection pipe, and an aeration inlet pipe is fixedly connected to the upper end of the aeration pipe.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model discloses an anti-fouling MBR membrane device with self-cleaning function. By setting a four-way connector at the upper end of the product water pipe of the device frame and installing a suction pipe, a backwash air pipe, and a backwash water pipe, it can achieve a good air-water combined backwashing function for the MBR membrane device, with good self-cleaning effect and reduced membrane replacement frequency.

[0012] Other features and advantages of this invention will be described in detail in the following specific embodiments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the connection structure between the telescopic hose, the mounting sleeve, and the vibrating component of this utility model.

[0015] In the diagram: 1. Device frame; 2. Product water pipe; 3. Upper water collection pipe; 4. Lower water collection pipe; 5. Branch pipe four-way fitting; 6. Suction pipe; 7. Backwash air pipe; 8. Backwash water pipe; 9. Electric valve; 10. Membrane fiber; 11. Telescopic hose; 12. Mounting sleeve; 121. First connecting piece; 122. Second connecting piece; 13. Vibrating component; 131. Column sleeve; 132. Movable column; 133. Spring; 14. Aeration pipe; 15. Aeration inlet pipe. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] Please see Figures 1-2 In this embodiment, a self-cleaning, anti-fouling MBR membrane device is provided, including a device frame 1. A permeate pipe 2 is fixedly installed on the device frame 1. An upper water collection pipe 3 and a lower water collection pipe 4 are fixedly installed on the top and bottom of one side of the permeate pipe 2, respectively. A membrane fiber 10 is installed between the upper water collection pipe 3 and the lower water collection pipe 4. A branch pipe four-way connector 5 is fixedly installed at the upper end of the permeate pipe 2. A suction pipe 6, a backwash air pipe 7, and a backwash water pipe 8 are also installed on the branch pipe four-way connector 5. Specifically, a suction pump is installed at the end of the suction pipe 6 away from the branch pipe four-way connector 5, and the backwash air pipe 7... Connected to an air compressor, the backwash water pipe 8 is connected to a booster water pump. The pressure of the compressed air generated by the backwash air pipe 7 can be around 0.03-0.05 MPa, and the backwash time can be 1-3 minutes. Compressed air can be introduced into the membrane module to make the membrane fibers 10 vibrate, loosening the contaminants attached to the membrane surface. Then, water backwashing is performed using the backwash water pipe 8. By rinsing the membrane fibers 10 with reverse water flow, contaminants on the membrane surface can be effectively removed. The backwash pressure can be controlled between 0.2-0.3 MPa to avoid damaging the membrane.

[0020] In this embodiment, electric valves 9 are installed on the suction pipe 6, backflushing air pipe 7, and backflushing water pipe 8. Specifically, by utilizing the suction action of the suction pump, sewage outside the MBR membrane unit can be drawn into the membrane fiber 10 through pressure difference. After being intercepted and filtered by the membrane fiber 10, the sewage can be effectively purified. The purified water enters the product water pipe 2 through the upper water collection pipe 3 and the lower water collection pipe 4, and then is drawn into the suction pipe 6 through the four-way connector 5, and finally discharged into the clean water tank, completing the sewage purification work. During the suction purification work, the electric valve 9 on the suction pipe 6 is open, and the electric valves 9 on the backflushing air pipe 7 and the backflushing water pipe 8 are closed. According to the DCS control system, the start time and duration of the above three electric valves 9 can be controlled. When self-cleaning is required, the electric valve 9 on the suction pipe 6 can be closed, and the electric valve 9 on the backflushing air pipe 7 or the backflushing water pipe 8 can be opened, so that the self-cleaning purpose of air backflushing and water backflushing can be completed during the interval of water purification work.

[0021] In this embodiment, there are multiple sets of membrane fibers 10. Each set of membrane fibers 10 is connected to a telescopic hose 11 at its upper end. Each set of telescopic hoses 11 is fixedly fitted with an installation sleeve 12 on its outer surface. Adjacent sets of installation sleeves 12 are movably connected by a vibrating element 13. The vibrating element 13 includes a column sleeve 131 and a movable column 132 that are movably fitted together. The column sleeve 131 and the movable column 132 are movably connected by a spring 133. The telescopic hose 11 is a PU wear-resistant steel wire hose, which has good elasticity and telescopic performance. It can enhance the vibration effect of the membrane fibers 10. Under the action of bottom aeration and backwash air pipe or backwash water pipe, it can enhance the vibration effect of the membrane fibers 10, thereby improving the self-cleaning effect.

[0022] In this embodiment, the two ends of the mounting sleeve 12 are respectively provided with a first connecting piece 121 and a second connecting piece 122, and the first connecting piece 121 and the second connecting piece 122 are fixedly bonded to each other. Specifically, the first connecting piece 121 and the second connecting piece 122 can be the rough side and the hook side of the Velcro patch, thereby improving the ease of installation or removal of the mounting sleeve 12.

[0023] In this embodiment, an aeration pipe 14 is provided below the lower water collection pipe 4, and an aeration inlet pipe 15 is fixedly connected to the upper end of the aeration pipe 14. Both the aeration pipe 14 and the aeration inlet pipe 15 are fixedly installed on the device frame 1, and multiple aeration ports are arranged on the aeration pipe 14. The aeration produced by the aeration pipe 14 can effectively clean the surface of the membrane fibers 10 above, thereby improving the self-cleaning effect of the MBR membrane device.

[0024] By installing a four-way connector 5 at the upper end of the product water pipe 2 of the device frame 1, and installing a suction pipe 6, a backwash air pipe 7, and a backwash water pipe 8, the MBR membrane device can achieve a good air-water combined backwashing function, with good self-cleaning effect, which can reduce the frequency of membrane replacement.

[0025] 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 anti-fouling type MBR membrane device having a self-cleaning function, characterized by, The utility model provides a water production device, including device frame body (1), water production pipe (2) is fixedly installed on device frame body (1), the upper end and bottom of water production pipe (2) one side are fixedly installed with upper water collecting pipe (3) and lower water collecting pipe (4) respectively, and membrane silk (10) is installed between upper water collecting pipe (3) and lower water collecting pipe (4), the upper end of water production pipe (2) is fixedly installed with branch pipe four -way piece (5), and suction pipe (6), backflush gas pipe (7) and backflushing water pipe (8) are also installed on branch pipe four -way piece (5).

2. The anti-fouling MBR membrane device with self-cleaning function according to claim 1, characterized in that, Electric valve (9) is installed on suction pipe (6), backflush gas pipe (7) and backflushing water pipe (8) all.

3. The anti-fouling MBR membrane device with self-cleaning function according to claim 1, characterized in that, The membrane silk (10) is multiple groups, and the upper end of each group of membrane silk (10) is connected with telescopic hose (11), and the outer surface of each group of telescopic hose (11) is fixedly sleeved with mounting sleeve (12), and adjacent groups of mounting sleeve (12) are movably connected through vibration piece (13).

4. The anti-fouling MBR membrane device with self-cleaning function according to claim 3, characterized in that, The both ends of mounting sleeve (12) are respectively provided with first connecting sheet (121) and second connecting sheet (122), and the first connecting sheet (121) and the second connecting sheet (122) are fixedly bonded with each other.

5. The anti-fouling MBR membrane device with self-cleaning function according to claim 3, characterized in that, The vibration piece (13) includes column sleeve (131) and movable column (132) movably sleeved with each other, and the column sleeve (131) and the movable column (132) are movably connected through spring (133).

6. The anti-fouling MBR membrane device with self-cleaning function according to claim 1, characterized in that, The lower portion of lower water collecting pipe (4) is provided with aeration pipe (14), and the upper end of aeration pipe (14) is fixedly connected with aeration inlet pipe (15).

Images