Membrane bioreactor cleaning device

Abstract

The utility model provides a kind of membrane bioreactor cleaning device, including base assembly, the upper portion of base assembly is equipped with slag collecting groove, the inside of slag collecting groove is equipped with base assembly, the upper portion of base assembly is equipped with detachable cleaning frame, flushing assembly is symmetrically equipped in the both sides of cleaning frame, ultrasonic generator is symmetrically equipped in the other two sides of cleaning frame, the top of cleaning frame is equipped with multiple guide components, guide component is used to control the falling direction of reactor, this cleaning device is by integrating ultrasonic cleaning, vibration impurity removal and directional flushing function, significantly improve cleaning efficiency and cleanliness, adjustable vibration frequency and ultrasonic wave synergistic effect, can depth stripping membrane surface stubborn contaminant, solve the slag produced in the cleaning process of traditional fixed pool type reactor cleaning pool to deposit in pool bottom, difficult to discharge quickly, not only cause secondary pollution, also lead to the problem that contaminant in membrane gap and other dead angle place cannot be completely removed.

Description

Technical Field

[0001] This utility model relates to the field of water purification, and in particular to a membrane bioreactor cleaning device. Background Technology

[0002] During the long-term operation of membrane bioreactors, pollutants such as sludge, colloids and microbial flocs are easily attached to the surface of the membrane module, which leads to a decrease in membrane flux. Regular cleaning is required to maintain its treatment efficiency. The industry mostly uses fixed cleaning tanks to clean the membrane modules. This method requires immersing the entire membrane module in the cleaning tank and cleaning is completed by manual rinsing or mechanical rinsing.

[0003] However, this method has significant drawbacks: on the one hand, fixed cleaning tanks need to be continuously filled with a large amount of clean water to ensure the soaking level, resulting in high water consumption and failing to meet energy conservation and environmental protection requirements; on the other hand, the sludge generated during the cleaning process tends to settle at the bottom of the tank and is difficult to discharge quickly, causing not only secondary pollution but also preventing the thorough removal of pollutants in dead corners such as membrane gaps, thus affecting the cleaning effect.

[0004] In addition, traditional devices lack precise positioning of membrane modules and multi-dimensional cleaning methods, making it difficult to adapt to the cleaning needs of membrane modules with different levels of pollution, which restricts the operating efficiency and service life of membrane bioreactors. Utility Model Content

[0005] The main purpose of this invention is to provide a membrane bioreactor cleaning device, which solves the problem that in traditional fixed-tank reactor cleaning tanks, the sludge generated during the cleaning process easily settles at the bottom of the tank and is difficult to discharge quickly, causing not only secondary pollution but also making it impossible to completely remove pollutants from dead corners such as membrane gaps.

[0006] To solve the above technical problems, the technical solution adopted by this utility model is: a membrane bioreactor cleaning device, including a base assembly, a slag collection tank above the base assembly, a base assembly inside the slag collection tank, a detachable cleaning frame above the base assembly, rinsing components symmetrically arranged on both sides of the cleaning frame, and ultrasonic generators symmetrically arranged on the other two sides of the cleaning frame. The top of the cleaning frame is equipped with multiple guide components, which are used to control the direction of the reactor's descent. The slag collection trough is equipped with slag discharge troughs on both sides, and multiple lifting electric cylinders are installed around the slag collection trough. The top of the lifting electric cylinders is equipped with a lifting plate, which is used to lift the cleaning frame.

[0007] In a preferred embodiment, the base assembly includes a base plate, an electromagnet is provided below the base plate for adsorbing the reactor, and a vibrator is provided below the electromagnet for causing the reactor to vibrate. The outer side of the base plate is equipped with a silicone sealing strip, which is used to improve the sealing between the cleaning frame and the base plate. The outer side of the base assembly is also equipped with an inclined part, which makes it easier for the slag to slide into the slag collection tank. The vibration frequency generated by the vibrator is adjustable from 30Hz to 100Hz.

[0008] In the preferred embodiment, the cleaning frame includes a frame body, which is a square outer frame. The rinsing components are symmetrically arranged on both sides of the frame body, and the ultrasonic generators are symmetrically arranged on the other two sides of the frame body. The frame has multiple through holes on the side near the flushing component. The top of the frame has a lifting side plate, and there is a diagonal bracing plate between the lifting side plate and the outer wall of the frame. There is also a water outlet on the lower side of the frame, and an electric control valve is installed at the water outlet.

[0009] In a preferred embodiment, the rinsing assembly includes a rinsing housing, an internal propulsion chamber, a drivable propulsion plate, and multiple rinsing rods on the side of the propulsion plate facing the frame. The rinsing rods pass through through holes, and a sealing ring is provided between the rinsing rods and the through holes. The flushing rod is used to flush the membrane surface in the reactor.

[0010] In the preferred embodiment, a propulsion motor is provided on one side of the propulsion plate, and a propulsion screw is provided at the output shaft end of the propulsion motor. The propulsion screw meshes with a nut seat on the propulsion plate. The other side of the push plate is equipped with a guide shaft, on which the push plate slides. The tail end of the flushing rod is also equipped with an external water pipe, which is used to connect to external water injection equipment.

[0011] In the preferred embodiment, the flushing rod includes a main pipe, the top of which is provided with multiple outwardly extending branch pipes, the inside of which is provided with a cavity, and the top of which is provided with a spray nozzle. The spray nozzle is used to spray the turbulent water from the external water injection equipment onto the surface of the membrane. The propulsion motor is used to control the lateral movement of the flushing rod outside the diaphragm, thereby controlling the lateral cleaning range of the flushing rod.

[0012] In the preferred embodiment, the flushing rods on both sides of the frame can be extended with pipes, and the flushing rods are arranged alternately on the outside of the diaphragm.

[0013] In the preferred embodiment, the guiding assembly includes a guide plate, which is arranged on the top of the lifting side plate. The guide plate is provided with multiple forward guide rails, and forward plates are provided on the forward guide rails. A roller frame is provided on the side of the forward plate facing the frame, and a rotatable guide roller is provided on the roller frame.

[0014] In the preferred embodiment, a forward moving motor is provided below the forward moving plate, a forward moving lead screw is provided at the output shaft end of the forward moving motor, and a forward moving nut seat is provided between the forward moving lead screw and the forward moving plate. The rotation of the forward moving lead screw will drive the forward moving plate to move forward. The reactor includes columns with multiple membranes between them, and hooks at the top of the columns. This invention provides a membrane bioreactor cleaning device, which has the following beneficial effects: 1. This cleaning device integrates ultrasonic cleaning, vibration impurity removal and directional rinsing functions, which significantly improves cleaning efficiency and cleanliness. The adjustable vibration frequency and ultrasonic waves work together to deeply remove stubborn contaminants from the membrane surface. 2. The combination of the guide component and the electromagnet enables precise positioning of the membrane module, avoiding cleaning dead corners; the design of the lifting electric cylinder and the slag collection tank facilitates rapid sewage discharge and reduces slag residue; the directional movement of the flushing rod and the circulating water system significantly reduce water consumption, making it more water-saving than traditional methods. It has the advantages of being both environmentally friendly and highly efficient, effectively solving the problems of large water consumption, difficult sewage discharge, and incomplete cleaning in traditional cleaning pools. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is an isometric view of the cleaning device of this utility model; Figure 2 This is a partial view of the guide component of this utility model; Figure 3 This is a schematic diagram of the reactor hoisting of this utility model; Figure 4 This is a top view schematic diagram of the cleaning device of this utility model; Figure 5 This is a cross-sectional schematic diagram of the cleaning device of this utility model; Figure 6 This is a schematic diagram showing the distribution of the flushing rods of this utility model; Figure 7 This is a cross-sectional schematic diagram of the flushing assembly of this utility model; Figure 8 This is a partial axonometric view of the flushing rod of this utility model; Figure 9 This is a cross-sectional schematic diagram of the cleaning frame of this utility model; Figure 10 This is a cross-sectional view of the flushing assembly of this utility model from another direction; Figure 11 This is a schematic diagram showing the distribution of the flushing rod and diaphragm of this utility model; Figure 12 This is an isometric view of the cleaning frame of this utility model; Figure 13 This is an exploded schematic diagram of the cleaning device of this utility model.

[0016] In the diagram: Base assembly 1; Lifting cylinder 101; Lifting plate 102; Slag collection trough 103; Slag discharge trough 104; Base assembly 2; Electromagnet 201; Vibrator 202; Base plate 203; Silicone sealing strip 204; Inclined part 205; Cleaning frame 3; Frame body 301; Lifting side plate 302; Connecting column 303; Through hole 304; Inclined plate 305; Water outlet 306; Flushing assembly 4; Flushing housing 401; Flushing rod 402; Main pipe 4 03; Diverter pipe 404; Propulsion chamber 405; Propulsion plate 406; Propulsion motor 407; Propulsion screw 408; Guide shaft 409; External water pipe 410; Guide assembly 5; Guide plate 501; Forward guide rail 502; Forward plate 503; Forward nut seat 504; Forward motor 505; Roller frame 506; Forward screw 507; Guide roller 508; Ultrasonic generator 6; Reactor 7; Hook 701; Column 702; Diaphragm 703. Detailed Implementation

[0017] Example 1 like Figure 1-13 As shown, a membrane bioreactor cleaning device includes a base assembly 1, a slag collection tank 103 above the base assembly 1, a base assembly 2 inside the slag collection tank 103, a detachable cleaning frame 3 above the base assembly 2, rinsing components 4 symmetrically arranged on both sides of the cleaning frame 3, and ultrasonic generators 6 symmetrically arranged on the other two sides of the cleaning frame 3. The top of the cleaning frame 3 is provided with multiple guide components 5, which are used to control the falling direction of the reactor 7; The slag collection trough 103 is provided with slag discharge troughs 104 on both sides. Multiple lifting cylinders 101 are provided around the slag collection trough 103. The top of the lifting cylinders 101 is provided with a lifting plate 102, which is used to lift the cleaning frame 3.

[0018] In a preferred embodiment, the base assembly 2 includes a base plate 203, an electromagnet 201 is provided below the base plate 203 for adsorbing the reactor 7, and a vibrator 202 is provided below the electromagnet 201 for causing the reactor 7 to vibrate. A silicone sealing strip 204 is provided on the outer side of the base plate 203. The silicone sealing strip 204 is used to improve the sealing between the cleaning frame 3 and the base plate 203. An inclined part 205 is also provided on the outer side of the base assembly 2. The inclined part 205 facilitates the slag to slide into the slag collection tank 103. The vibration frequency generated by vibrator 202 is adjustable from 30Hz to 100Hz.

[0019] In the preferred embodiment, the cleaning frame 3 includes a frame 301, which is a square outer frame. The rinsing components 4 are symmetrically arranged on both sides of the frame 301, and the ultrasonic generators 6 are symmetrically arranged on the other two sides of the frame 301. The frame 301 has multiple through holes 304 on the side near the flushing assembly 4. The top of the frame 301 has a lifting side plate 302. A diagonal bracing plate 305 is provided between the lifting side plate 302 and the outer wall of the frame 301. A water outlet 306 is also provided on the lower side of the frame 301. An electric control valve is also provided at the water outlet 306.

[0020] In a preferred embodiment, the rinsing assembly 4 includes a rinsing housing 401, the interior of which is provided with a propulsion chamber 405, and a pushable propulsion plate 406 is provided in the propulsion chamber 405. A plurality of rinsing rods 402 are provided on the side of the propulsion plate 406 facing the frame 301. The rinsing rods 402 pass through the through hole 304, and a sealing ring is provided between the rinsing rods 402 and the through hole 304. The flushing rod 402 is used to flush the surface of the membrane 703 in the reactor 7.

[0021] In the preferred embodiment, a propulsion motor 407 is provided on one side of the propulsion plate 406, and a propulsion screw 408 is provided at the output shaft end of the propulsion motor 407. The propulsion screw 408 meshes with a nut seat on the propulsion plate 406. The other side of the push plate 406 is provided with a guide shaft 409, on which the push plate 406 slides. The tail end of the flushing rod 402 is also provided with an external water pipe 410, which is used to connect to external water injection equipment.

[0022] In the preferred embodiment, the flushing rod 402 includes a main pipe 403, the top end of the main pipe 403 is provided with a plurality of outwardly extending branch pipes 404, the inside of the main pipe 403 is provided with a cavity, and the top end of the branch pipes 404 is provided with a spray nozzle, which is used to spray the turbulent water from the external water injection equipment onto the surface of the diaphragm 703. The propulsion motor 407 is used to control the rinsing rod 402 to move laterally outside the diaphragm 703, thereby controlling the lateral cleaning range of the rinsing rod 402.

[0023] In the preferred embodiment, the flushing rods 402 on both sides of the frame 301 can be extended with pipes, and the flushing rods 402 are arranged vertically and horizontally on the outside of the diaphragm 703.

[0024] In a preferred embodiment, the guide assembly 5 includes a guide plate 501, which is disposed on the top of the lifting side plate 302. The guide plate 501 is provided with a plurality of forward guide rails 502, and the forward guide rails 502 are provided with forward plates 503. The side of the forward plate 503 facing the frame 301 is provided with a roller frame 506, and the roller frame 506 is provided with a rotatable guide roller 508.

[0025] In the preferred embodiment, a forward moving motor 505 is provided below the forward moving plate 503, a forward moving screw 507 is provided at the output shaft end of the forward moving motor 505, and a forward moving nut seat 504 is provided between the forward moving screw 507 and the forward moving plate 503. The rotation of the forward moving screw 507 will drive the forward moving plate 503 to move forward. The reactor 7 includes a column 702, with multiple membranes 703 arranged between the columns 702, and a hook 701 on the top of the column 702. Example 2 Further explanation in conjunction with Example 1, such as Figure 1-13 The structure shown above utilizes a cleaning method for a membrane bioreactor cleaning device, the method comprising: S1. The reactor 7 that needs to be cleaned is hoisted to the top of the cleaning frame 3 via the gantry crane and gradually lowered into the frame 301; S2. When the column 701 of the reactor 7 passes the guide assembly 5, the forward motor 505 drives the guide roller 508 to fit against the outside of the column 701, restricting the downward direction of the reactor 7. S3. When reactor 7 is lowered to fit the bottom plate 203, electromagnet 201 is activated to temporarily fix reactor 7 by adsorption. S4. First, have a person use a high-pressure water gun to rinse the surface of the reactor 7 from top to bottom. Simultaneously, the electric control valve of the outlet 306 is opened, so that the rinsing water and slag are discharged from the outlet 306 into the slag collection tank 103. S5. During manual cleaning, start the propulsion motor 407 to make the flushing rod 402 extend into the gap of the diaphragm 703, and start the external water injection device to introduce water flow to flush both sides of the diaphragm 703. At the same time as flushing, the propulsion motor 407 can be started to make the flushing rod 402 move laterally and flush repeatedly. S5. At the end of the manual rinsing stage, the lifting cylinder 101 is activated to lift the cleaning frame 3 upwards, and the cleaning frame 3 is separated from the bottom plate 203. The bottom plate 203 and the inner wall of the cleaning frame 3 are then manually rinsed with high pressure to thoroughly clean the residue from the initial cleaning. S6. After cleaning the base plate 203 and the cleaning frame 3, close the electric control valve, start the lifting cylinder 101 to make the cleaning frame 3 lower and re-fit with the base plate 203, start the propulsion motor 407 again to make the flushing rod 402 extend into the gap of the diaphragm 703, and start the external water injection device to introduce water flow to flush the two sides of the diaphragm 703, so that the water level in the cleaning frame 3 exceeds the top of the diaphragm 703. S7. After the water level in the cleaning frame 3 reaches the specified height, the ultrasonic generator 6 is started to perform ultrasonic cleaning on the diaphragm 703. At the same time, the vibrator 202 under the base plate 203 is started, and the vibration is transmitted to the column 702 to remove the attached sludge. S8. After the first wave of ultrasonic cleaning is completed, turn off the ultrasonic generator 6 and vibrator 202, open the electric control valve to drain the sewage inside the cleaning frame 3, close the electric control valve after draining, and inject water into the cleaning frame 3 again through the flushing rod 402. Repeat steps S6-S8 until the water quality after cleaning is qualified.

[0026] Example 3, in conjunction with Examples 1 and 2, further illustrates the detailed usage process of a membrane bioreactor cleaning device as follows: S1. Entering the cleaning preparation stage. Using a gantry crane, the operator hooks the hook 701 of reactor 7 and smoothly hoists it to the top of the cleaning frame 3. Then, the operator controls reactor 7 to gradually descend into the frame 301. When the column 702 of reactor 7 passes the guide assembly 5, the guide assembly 5 immediately starts working. The forward-moving motor 505 on the guide plate 501 starts operating, and the forward-moving screw 507 at its output shaft rotates accordingly. Since the forward-moving screw 507 meshes with the forward-moving nut seat 504 on the forward-moving plate 503, it drives the forward-moving plate 503 to move forward along the forward-moving guide rail 502. The roller frame 506 on one side of the forward-moving plate 503 moves synchronously, causing the guide roller 508 on the roller frame 506 to tightly adhere to the outside of the column 702, precisely limiting the descent direction of reactor 7 and preventing it from deviating during descent. The lateral direction of reactor 7 does not require guidance; it is only necessary to ensure that the membrane 703 and the flushing rod 402 are staggered to avoid collisions.

[0027] When the reactor 7 descends to the base plate 203 that fits the base assembly 2, the electromagnet 201 under the base plate 203 is immediately activated, generating a strong magnetic force to attract and temporarily fix the reactor 7, ensuring that the reactor 7 will not shake during the subsequent cleaning process. S2. Preliminary cleaning stage. First, manual rinsing is performed. Operators use a high-pressure water gun to thoroughly rinse the surface of reactor 7 from top to bottom. Simultaneously, the electrically controlled valve at the outlet 306 on one side of the cleaning frame 3 opens, and the rinsing water carrying a large amount of sludge is discharged from outlet 306 into the sludge collection tank 103. While manual rinsing is underway, the rinsing assembly 4 begins operation. The propulsion motor 407 starts, and the propulsion screw 408 at its output shaft rotates, engaging with the nut seat on the propulsion plate 406, pushing the propulsion plate 406 within the propulsion chamber 405 along the guide shaft 409 towards the frame 301. Multiple rinsing rods 402 on one side of the propulsion plate 406 pass through the through holes 304 on the frame 301 and extend into the gaps between the membranes 703 in reactor 7. The sealing ring between the rinsing rods 402 and the through holes 304 ensures a tight seal, preventing leakage.

[0028] S3. Subsequently, the external water injection device connected to the external water pipe 410 at the tail end of the flushing rod 402 is activated. Water flows through the external water pipe 410 into the main pipe 403 of the flushing rod 402, and then through multiple branch pipes 404 at the top of the main pipe 403. A jet of water is sprayed from the spray nozzles at the top of the branch pipes 404 to flush both sides of the diaphragm 703. During the flushing process, the propulsion motor 407 can be restarted to control the lateral movement of the flushing rod 402, expanding the lateral cleaning range and repeatedly flushing the surface of the diaphragm 703.

[0029] The flushing rods 402 on both sides of the frame 301 can be arranged in an alternating manner, and extension pipes can be added as needed to fully cover all areas of the diaphragm 703, ensuring that there are no dead corners in the flushing. S4. As the manual rinsing nears completion, the lifting cylinder 101 on the base assembly 1 is activated, raising the top lifting plate 102 and lifting the lifting side plate 302 of the cleaning frame 3, causing the cleaning frame 3 to lift and detach from the base plate 203. At this time, the operator uses a high-pressure water gun to thoroughly rinse the base plate 203 and the inner wall of the cleaning frame 3, cleaning away any residue remaining from the initial rinsing process. This residue slides along the inclined portion 205 on the outside of the base assembly 2 towards the slag collection trough 103, and is then discharged from the slag discharge troughs 104 on both sides of the slag collection trough 103. S5. After the initial cleaning is completed, the deep cleaning stage begins. The lifting cylinder 101 retracts, the lifting plate 102 descends, and the cleaning frame 3 moves downwards accordingly, re-engaging with the base plate 203. Because the base plate 203 has a silicone sealing strip 204 on its outer side, the sealing between the cleaning frame 3 and the base plate 203 is effectively improved.

[0030] Then, the propulsion motor 407 is started again, the electric control valve of the outlet 306 is closed, and the flushing rod 402 is inserted into the gap of the diaphragm 703 again. The external water injection device continues to inject water to flush both sides of the diaphragm 703, while water is injected into the cleaning frame 3 until the water level in the frame 301 exceeds the top of the diaphragm 703. S6. When the water level in the cleaning frame 3 reaches the specified height, the ultrasonic generators 6 symmetrically arranged on both sides of the cleaning frame 3 are activated, emitting high-frequency sound waves to ultrasonically clean the diaphragm 703, using the cavitation effect of ultrasound to remove stubborn contaminants from the surface of the diaphragm 703. At the same time, the vibrator 202 under the bottom plate 203 is activated, and the adjustable vibration frequency of 30Hz~100Hz generated by it is transmitted through the bottom plate 203 to the column 702 of the reactor 7, and then from the column 702 to the diaphragm 703, causing the sludge attached to the diaphragm 703 to fall off under the vibration. S7. After the first wave of ultrasonic cleaning is completed, turn off the ultrasonic generator 6 and vibrator 202, open the electric control valve of the water outlet 306 to drain the sewage inside the cleaning frame 3. After the sewage is drained, close the electric control valve and inject water into the cleaning frame 3 again through the flushing rod 402. Repeat the above deep cleaning steps, that is, start the propulsion motor again to make the flushing rod extend into the gap, inject water, start the ultrasonic generator and vibrator, drain water, etc., until the water quality reaches the qualified standard. Throughout the cleaning process, multiple lifting cylinders 101 around the slag collection tank 103 can be activated as needed. The lifting plate 102 on top of the cylinders lifts the cleaning frame 3, facilitating special operations or cleaning work. The inclined part 205 on the outside of the base assembly 2 guides the slag to slide smoothly into the slag collection tank 103, preventing slag accumulation. The inclined plate 305 between the lifting side plate 302 on the top of the cleaning frame 3 and the outer wall of the frame 301 enhances the load-bearing capacity of the lifting side plate 302, ensuring the structural stability of the cleaning frame 3 during the lifting process.

[0031] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A membrane bioreactor cleaning device, characterized in that: Includes a base assembly (1), a slag collection tank (103) is provided above the base assembly (1), a base assembly (2) is provided inside the slag collection tank (103), a detachable cleaning frame (3) is provided above the base assembly (2), a flushing assembly (4) is symmetrically provided on both sides of the cleaning frame (3), and an ultrasonic generator (6) is symmetrically provided on the other two sides of the cleaning frame (3). The top of the cleaning frame (3) is provided with multiple guide components (5), which are used to control the falling direction of the reactor (7); The slag collection trough (103) is provided with slag discharge troughs (104) on both sides. Multiple lifting electric cylinders (101) are provided around the slag collection trough (103). A lifting plate (102) is provided on the top of the lifting electric cylinder (101). The lifting plate (102) is used to lift the cleaning frame (3).

2. The membrane bioreactor cleaning device according to claim 1, characterized in that: The base assembly (2) includes a base plate (203), an electromagnet (201) is provided below the base plate (203), the electromagnet (201) is used to adsorb the reactor (7), and a vibrator (202) is provided below the electromagnet (201), the vibrator (202) is used to make the reactor (7) vibrate.

3. The membrane bioreactor cleaning device according to claim 2, characterized in that: The outer side of the base plate (203) is provided with a silicone sealing strip (204). The silicone sealing strip (204) is used to improve the sealing between the cleaning frame (3) and the base plate (203). The outer side of the base assembly (2) is also provided with an inclined part (205). The inclined part (205) facilitates the slag to slide into the slag collection tank (103). The vibration frequency generated by the vibrator (202) is adjustable from 30 Hz to 100 Hz.

4. The membrane bioreactor cleaning device according to claim 1, characterized in that: The cleaning frame (3) includes a frame (301), which is a square outer frame. The rinsing components (4) are symmetrically arranged on both sides of the frame (301), and the ultrasonic generators (6) are symmetrically arranged on the other two sides of the frame (301). The frame (301) has multiple through holes (304) on the side near the flushing assembly (4). The top of the frame (301) has a lifting side plate (302). A diagonal bracing plate (305) is provided between the lifting side plate (302) and the outer wall of the frame (301). A water outlet (306) is also provided on the lower side of the frame (301). An electric control valve is also provided at the water outlet (306).

5. The membrane bioreactor cleaning device according to claim 1, characterized in that: The flushing assembly (4) includes a flushing housing (401), the flushing housing (401) has a push chamber (405) inside, the push chamber (405) has a pushable push plate (406) inside, the push plate (406) has a plurality of flushing rods (402) on the side facing the frame (301), the flushing rods (402) pass through the through hole (304), and the flushing rods (402) and the through hole (304) are provided with a sealing ring; The flushing rod (402) is used to flush the surface of the membrane (703) in the reactor (7).

6. The membrane bioreactor cleaning device according to claim 5, characterized in that: A propulsion motor (407) is provided on one side of the propulsion plate (406), and a propulsion screw (408) is provided at the output shaft end of the propulsion motor (407). The propulsion screw (408) meshes with the nut seat on the propulsion plate (406). The other side of the push plate (406) is provided with a guide shaft (409), the push plate (406) slides on the guide shaft (409), and the tail end of the flushing rod (402) is also provided with an external water pipe (410), which is used to connect to external water injection equipment.

7. The membrane bioreactor cleaning device according to claim 6, characterized in that: The flushing rod (402) includes a main pipe (403), the top end of the main pipe (403) is provided with multiple outwardly extending branch pipes (404), the inside of the main pipe (403) is provided with a cavity, the top end of the branch pipe (404) is provided with a spray nozzle, the spray nozzle is used to spray the turbulent water from the external water injection equipment onto the surface of the diaphragm (703). The propulsion motor (407) is used to control the rinsing bar (402) to move laterally outside the diaphragm (703) and control the lateral cleaning range of the rinsing bar (402).

8. The membrane bioreactor cleaning device according to claim 7, characterized in that: The flushing rod (402) can be used to extend the pipe. The flushing rod (402) is arranged alternately on the outside of the diaphragm (703).

9. The membrane bioreactor cleaning device according to claim 8, characterized in that: The guide assembly (5) includes a guide plate (501), which is arranged on the top of the lifting side plate (302). The guide plate (501) is provided with multiple forward guide rails (502), and the forward guide rails (502) are provided with forward plates (503). The side of the forward plate (503) facing the frame (301) is provided with a roller frame (506), and the roller frame (506) is provided with a rotatable guide roller (508).

10. The membrane bioreactor cleaning device according to claim 9, characterized in that: A forward moving motor (505) is provided below the forward moving plate (503). A forward moving screw (507) is provided at the output shaft end of the forward moving motor (505). A forward moving nut seat (504) is provided between the forward moving screw (507) and the forward moving plate (503). The rotation of the forward moving screw (507) will drive the forward moving plate (503) to move forward. The reactor (7) includes a column (702), with multiple membranes (703) between the columns (702), and a hook (701) on the top of the column (702).

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