MBR membrane filament cleaning device

Abstract

The utility model relates to sewage treatment device technical field provides a kind of MBR membrane filament cleaning device, including water tank, water pump connected with the water tank by pipeline and filter connected with the water pump by pipeline;First flange is provided on water tank, and second flange is provided on filter. The reagent is pumped into the membrane filament inside by water pump, so that the cleaning reagent gradually penetrates from the inner surface of the membrane filament to the outer surface, the inner surface of the membrane filament is completely soaked by the reagent, the cleaning of the inside of the membrane filament is realized, the defects of traditional offline cleaning are solved, the problem that the membrane filament is not completely cleaned due to uneven aeration is avoided, and the cleaning effect of the membrane filament is strengthened.

Description

Technical Field

[0001] This utility model belongs to the technical field of sewage treatment equipment, specifically relating to an MBR membrane fiber cleaning device. Background Technology

[0002] MBR membrane technology has become one of the important technologies in modern water treatment due to its small footprint, high retention accuracy, strong resistance to hydraulic load shocks, and good effluent quality. During the operation of the MBR membrane process, regular cleaning and maintenance are required, including online and offline cleaning of the membrane, to ensure normal operating flux.

[0003] The standard offline cleaning method involves manually rinsing off the sludge from the surface of the MBR membrane fibers, then immersing the membrane module in acid and alkali tanks, turning on bottom aeration, and soaking the outer surface of the membrane fibers in chemicals for 8 to 12 hours to remove organic and inorganic contaminants. This cleaning method is time-consuming, wasteful of chemicals, and fails to clean the inside of the membrane fibers. It also has the problems of large footprint and low cleaning efficiency. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes an MBR membrane fiber cleaning device. This device uses a water pump to inject cleaning agents into the membrane fibers, allowing the agents to gradually penetrate from the inner surface to the outer surface. The inner surface of the membrane fibers is completely immersed in the cleaning agent, achieving thorough cleaning of the membrane fibers. This solves the shortcomings of traditional offline cleaning methods, avoids incomplete cleaning due to uneven aeration, and enhances the cleaning effect of the membrane fibers.

[0005] According to some embodiments, this utility model provides an MBR membrane fiber cleaning device, which adopts the following technical solution:

[0006] An MBR membrane fiber cleaning device includes a water tank, a water pump connected to the water tank via a pipe, and a filter connected to the water pump via a pipe.

[0007] The water tank is equipped with a first flange, and the filter is equipped with a second flange.

[0008] Furthermore, the water tank, the water pump, and the filter are mounted on the frame.

[0009] Furthermore, the frame is equipped with wheels at the bottom.

[0010] Furthermore, a wheel is provided at each of the four corners of the bottom of the frame.

[0011] Furthermore, the first flange is connected to a reagent tank via a pipe, and the second flange is connected to an MBR membrane module via a pipe.

[0012] Furthermore, the water tank is equipped with a water injection valve.

[0013] Furthermore, a pressure sensor is installed on the pipe between the water tank and the water pump.

[0014] Furthermore, a flow meter is installed on the pipe between the water pump and the filter.

[0015] Furthermore, a pipe valve is installed on the pipe between the water pump and the filter.

[0016] Furthermore, a pressure gauge is installed on the pipe between the water pump and the filter.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model includes a water tank, a water pump connected to the water tank via a pipe, and a filter connected to the water pump via a pipe. A first flange is provided on the water tank, and a second flange is provided on the filter. The cleaning agent is pumped into the membrane fibers via the water pump, allowing the cleaning agent to gradually penetrate from the inner surface of the membrane fibers to the outer surface. The inner surface of the membrane fibers is completely soaked in the cleaning agent, achieving thorough cleaning of the membrane fibers. This solves the shortcomings of traditional offline cleaning, avoids the problem of incomplete cleaning of the membrane fibers due to uneven aeration, and enhances the cleaning effect of the membrane fibers. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0020] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0021] Figure 2 This is the utility model Figure 1 The main view in the middle;

[0022] Figure 3 This is the utility model Figure 1 The left view in the middle;

[0023] Figure 4 This is the utility model Figure 1 The right view in the middle;

[0024] Figure 5 This is a schematic diagram of the external structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the connection between this utility model and the MBR unit;

[0026] The components are: 1. First flange; 2. Water tank; 3. Water injection valve; 4. Pressure sensor; 5. Water pump; 6. Flow meter; 7. Pipeline valve; 8. Pressure gauge; 9. Motor; 10. Filter; 11. Second flange; 12. Drain outlet; 13. Frame; 14. Control box; 15. Wheels. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0029] like Figures 1-4 As shown, in one embodiment, an MBR membrane fiber cleaning device is provided, which can clean the membrane fibers with low chemical consumption, high cleaning efficiency, small size, and mobile operation. The device includes a first flange 1, a water tank 2, a water injection valve 3, a pressure sensor 4, a water pump 5, a flow meter 6, a pipeline valve 7, a pressure gauge 8, a motor 9, a filter 10, a second flange 11, a drain outlet 12, a frame 13, a control box 14, and wheels 15, etc.

[0030] The frame 13 can be a frame structure, comprising multiple angle steel or shaped steel sections welded together. The frame 13 is used to support the water tank 2, the water pump 5, and the filter 10, etc.

[0031] The frame 13 is equipped with wheels 15 at its bottom; specifically, each of the four corners of the frame 13 has a wheel 15. The wheels 15 at the bottom of the frame 13 allow the entire device to move flexibly, facilitating transport and changes in work location. The device is fixedly assembled into a whole by the frame 13 and equipped with wheels 15 at the bottom, allowing for easy movement and operation anytime, anywhere.

[0032] The water tank 2 is used to hold water and chemicals. A first flange 1 is provided on the side wall of the water tank 2. The first flange 1 is connected to a chemical container via a pipe. The chemical container can be made of stainless steel pipe, plastic container, or other container. The chemical is a conventional chemical. The water tank 2 is mounted on the frame 13 by welding or bolting.

[0033] The top of the water tank 2 is equipped with a water injection valve 3, which can be connected to a water supply device via a pipe. The water supply device can be a conventional water supply system.

[0034] The inlet of the water pump 5 is connected to the water tank 2 via a pipe; the outlet of the water pump 5 is connected to the filter 10 via a pipe. During operation, the water pump 5 draws the chemicals from the water tank 2 into the filter 10. The flow-through components and pipes of the water pump 5 can be made of PVDF. The water pump 5 can be mounted on the frame 13 by welding or bolting.

[0035] A pressure sensor 4 is installed on the pipeline between the water tank 2 and the water pump 5; the pressure sensor 4 is used to detect the pressure change of the fluid in the pipeline and provide data for maintenance or control.

[0036] A flow meter 6, a pressure gauge 8, and a pipe valve 7 are installed on the pipeline between the water pump 5 and the filter 10. The flow meter 6 and the pressure gauge 8 can detect the flow rate and pressure data in the pipeline, providing data for maintenance or control. The pipe valve 7 can be used to close and open the pipeline.

[0037] The filter 10 is used to filter impurities and can be mounted on the frame 13 by welding or bolting. A motor 9 is installed on the filter 10 to drive the rotating brush assembly for automatic cleaning, for example, by a mechanical transmission device (such as gears or a drive shaft) to rotate the rotating brush assembly inside the filter screen, thereby removing impurities from the filter screen surface. The filter 10 is provided with a drain port 12 for discharging accumulated impurities, wastewater, or pollutants from inside the equipment to maintain the normal operation and filtration effect of the filter 10. In some embodiments, the filter 10 can be a conventional device, which will not be described in detail here.

[0038] The second flange 11 on the filter 10 is connected to the MBR membrane module via a pipe. The flange can be installed at the corresponding position on the existing MBR membrane module for connecting the pipe, which will not be described in detail here.

[0039] In some embodiments, a control box 14 is also provided on the frame 13 for installing controllers for the motor 9 and the water pump 5, etc., to control the movement and rotation of the mechanical parts, so as to achieve the purpose of automatically flushing the MBR membrane module. The device of the present invention can operate automatically, greatly saving labor costs.

[0040] like Figure 5 As shown, a housing is installed on the outside of the entire device.

[0041] The specific cleaning method of the device in this embodiment is as follows:

[0042] Connect the pipeline on the reagent tank to the first flange 1, and connect the second flange 11 to the MBR membrane module via a pipeline. Open the water injection valve 3 to fill the water tank 2 with priming water, and then close the water injection valve 3. Start the water pump 5, open the pipeline valve 7, and inject the reagent solution; optionally, the reagent solution is added in three parts, one-third of the reagent volume each time. Observe the cleaning pressure through the pressure gauge 8. Reagent addition method: First addition, 5 minutes, then stand for 5 minutes; then second addition, 5 minutes, then stand for 5 minutes; then third addition, 5 minutes, and then turn off the water pump 5.

[0043] During cleaning, water containing the cleaning agent enters the filter 10 after passing through the water pump 5. The cleaning agent first intercepts impurities through the filter screen. As impurities accumulate, the pressure difference across the filter screen increases, the drain valve 12 opens, and at the same time, the suction pipe or rotating brush, driven by the motor 9, scrapes off the dirt on the filter screen and uses the reverse water flow to flush away the impurities. The entire process does not require stopping the machine. After cleaning, the pressure difference returns to normal, and the filter continues to operate.

[0044] Under the action of water pump 5, the medicine is pumped from water tank 2 through water pump 5, such as... Figure 6 As shown, the cleaning agent then passes through filter 10 to the inside of the MBR membrane fibers, where it soaks and cleans the membrane fibers from the inside to the outside.

[0045] In some embodiments, the pressure of the cleaning agent is selected to be 10~20 kPa. The cleaning method involves adding the agent in three parts, with a standing time of 5 minutes after each addition. The cleaning agent includes an acidic cleaning solution and an alkaline cleaning solution. The acidic cleaning solution includes oxalic acid or citric acid with a mass fraction of 1% to 2%; the alkaline cleaning solution includes a sodium hypochlorite solution with a concentration of 1000 to 2000 mg / L.

[0046] This invention enhances the cleaning effect of membrane fibers. By pumping the cleaning agent into the membrane fibers, the cleaning agent gradually penetrates from the inner surface of the membrane fibers to the outer surface, and the inner surface of the membrane fibers is completely soaked in the cleaning agent, thus achieving thorough cleaning of the inside of the membrane fibers. This solves the defects of traditional offline cleaning, avoids the problem of incomplete cleaning of membrane fibers due to uneven aeration, and enhances the cleaning effect of membrane fibers.

[0047] This invention can significantly reduce the amount of cleaning agents used. Traditional cleaning involves immersing the entire membrane module in a cleaning agent tank, and the amount of cleaning agent increases with the volume of the tank. This invention precisely injects the cleaning agent into the membrane fibers, thus reducing the amount of agent used.

[0048] This invention reduces cleaning time and improves cleaning efficiency. The device cleans the membrane fibers by injecting cleaning agents into them. The dosing pump can inject the agents into the membrane fibers in a short time, increasing the contact area, shortening the reaction time, and improving cleaning efficiency.

[0049] The device of this invention occupies a small area and is portable and mobile. It integrates water intake, cleaning, and filtration mechanisms into a single unit, is compact in size, and is equipped with wheels at the bottom for easy movement during operation.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An MBR membrane fiber cleaning device, characterized in that, Includes a water tank, a water pump connected to the water tank via a pipe, and a filter connected to the water pump via a pipe; The water tank is equipped with a first flange, and the filter is equipped with a second flange.

2. The MBR membrane fiber cleaning device as described in claim 1, characterized in that, The water tank, the water pump, and the filter are mounted on the frame.

3. The MBR membrane fiber cleaning device as described in claim 2, characterized in that, The frame is equipped with wheels at the bottom.

4. The MBR membrane fiber cleaning device as described in claim 3, characterized in that, A wheel is installed at each of the four corners of the bottom of the frame.

5. The MBR membrane fiber cleaning device as described in claim 1, characterized in that, The first flange is connected to a reagent tank via a pipe, and the second flange is connected to an MBR membrane module via a pipe.

6. The MBR membrane fiber cleaning device as described in claim 1, characterized in that, The water tank is equipped with a water injection valve.

7. The MBR membrane fiber cleaning device as described in claim 1, characterized in that, A pressure sensor is installed on the pipe between the water tank and the water pump.

8. The MBR membrane fiber cleaning device as described in claim 1, characterized in that, A flow meter is installed on the pipe between the water pump and the filter.

9. The MBR membrane fiber cleaning device as described in claim 8, characterized in that, A pipe valve is installed on the pipe between the water pump and the filter.

10. The MBR membrane fiber cleaning device as described in claim 9, characterized in that, A pressure gauge is installed on the pipe between the water pump and the filter.

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