Self-cleaning filtering membrane device

Abstract

The invention discloses a self-cleaning filter membrane device, which belongs to the technical field of sewage treatment, and structurally comprises a membrane assembly, a frame, a cleaner, an aeration assembly, a filter membrane lifting assembly or a cleaner lifting assembly or a cleaner lateral moving assembly, when the water yield of the device is reduced, the cleaning device is started to operate, the cleaning device ascends and descends or the membrane assembly ascends and descends or the cleaning device is moved leftwards and rightwards to clean the membrane assembly, so that sludge on the surface of the membrane assembly is removed, and the water production capacity of the membrane assembly is recovered. In the operation environment of the filter membrane device, the filter membrane is cleaned and desilted, and manual flushing is not needed during cleaning, so that the manpower can be saved, and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to a filtration membrane device, belonging to the field of wastewater treatment technology, and in particular to a self-cleaning filtration membrane device used in wastewater treatment systems. Background Technology

[0002] Currently, membrane bioreactors (MBR) technology is widely used in wastewater treatment. MBRs are a novel wastewater treatment system that organically combines membrane separation technology with biological treatment technology. A filtration membrane device is immersed in a wastewater tank. The filtration membrane device consists of a frame and membrane modules, including flat sheet membrane modules and hollow fiber membrane modules. This filtration membrane device replaces the secondary sedimentation tank at the end of traditional biological treatment technologies.

[0003] Filter membrane devices and flat sheet membrane modules that install flat sheet membrane modules, such as Figure 17 , Figure 18 As shown: The filtration membrane device includes a frame, a flat sheet membrane module, and an aeration module. The frame includes a membrane support, a water collection pipe, an upper horizontal pipe, a middle horizontal pipe, a lower horizontal pipe, and a vertical pipe. The upper part of the vertical pipe is connected to the upper horizontal pipe, and the lower part is connected to the lower horizontal pipe. The aeration module includes an aeration main pipe and aeration branch pipes, which are located on both sides of the aeration main pipe. The aeration main pipe and aeration branch pipes are located on the upper part of the lower horizontal pipe, and the middle horizontal pipe is located on the upper part of the aeration main pipe and connected to the vertical pipe. The membrane support is connected to the middle horizontal pipe. The water collection pipe is located on the outside of the vertical pipe. Top plates are provided at both ends of the frame. Vertical slots are arranged side by side between the upper and middle horizontal pipes. The flat sheet membrane module is vertically mounted on the slots. Inside the tank, the flat sheet membrane module has a rigid flat sheet in the middle for support. The membrane is set on both sides of the flat sheet and connected to the flat sheet around the perimeter. There is an outlet at the top. One end of the membrane outlet pipe is connected to the outlet of the flat sheet membrane module, and the other end is connected to the water collection pipe. The water collection pipe is connected to the product water pipe, which is connected to the inlet of the product water pump. The aeration main pipe is connected to the aeration blower through the aeration connection pipe. During operation, the filter membrane device is submerged in the wastewater tank. The negative pressure of the product water pump draws water from the outside of the filter membrane through the membrane surface into the inside of the flat sheet membrane module, and then flows into the clear water tank through the product water pipe and the product water pump. Pollutants are trapped on the outside of the membrane.

[0004] Filter membrane devices and hollow fiber membrane modules that install hollow fiber membrane modules, such as Figure 15 , Figure 16As shown: The filtration membrane device includes a frame, a hollow fiber membrane module, and an aeration module. The frame includes a membrane support, a water collection pipe, an upper horizontal pipe, a middle horizontal pipe, a lower horizontal pipe, and a vertical pipe. The upper part of the vertical pipe is connected to the upper horizontal pipe, and the lower part is connected to the lower horizontal pipe. The aeration module includes an aeration main pipe and aeration branch pipes, which are located on both sides of the aeration main pipe. The aeration main pipe and aeration branch pipes are located on the upper part of the lower horizontal pipe. The middle horizontal pipe is located on the upper part of the aeration main pipe and is connected to the vertical pipe. The membrane support is connected to the middle horizontal pipe. The hollow fiber membrane module is installed between the upper horizontal pipe and the membrane support of the frame. The water collection pipe is located on the outside of the vertical pipe.

[0005] The hollow fiber membrane module has an upper cavity and a lower cavity at its upper and lower ends, respectively. The two ends of the hollow fiber membrane filaments are connected to the upper cavity and the lower cavity, respectively. The upper cavity or the lower cavity is connected to the water collection pipe, which is connected to the product water pipe. The product water pipe is connected to the inlet of the product water pump. The aeration main pipe is connected to the aeration blower through the aeration connecting pipe. During operation, the filter membrane device is immersed in the sewage tank. The negative pressure of the product water pump draws water from the outside of the filter membrane through the filter membrane surface into the inside of the hollow fiber membrane. Then, it flows into the clear water tank through the product water pipe and the product water pump. Pollutants are trapped on the outside of the hollow fiber membrane.

[0006] Shortcomings of existing technology:

[0007] Sludge accumulates and coats the outer surface of membrane modules that have been in operation for a long time. When most of the hollow fiber membrane filaments or membrane sheets are tightly wrapped with sludge, the sludge becomes hard and compact due to the long-term suction force of the permeate pump during the operation of the filtration membrane device, thus reducing or eliminating the membrane module's water production capacity.

[0008] When conventional methods such as aeration and backwashing fail to remove sludge from the membrane module, the membrane module must be removed from the wastewater tank and disassembled for manual rinsing. This manual rinsing method is not only time-consuming and labor-intensive, but also very likely to damage the membrane module. Summary of the Invention

[0009] To address the shortcomings of existing technologies, this invention provides a self-cleaning filtration membrane device that cleans and removes sludge from the filtration membrane without removing or disassembling the membrane assembly from the wastewater tank, within the operating environment of the filtration membrane device.

[0010] The technical solution of this invention to solve the above problems is: providing a self-cleaning filter membrane device, the structure of which includes a membrane module, a frame, a cleaner, an aeration module, a filter membrane lifting module or a cleaner lifting module or a cleaner side-shifting module; wherein the membrane module is divided into a hollow fiber membrane module and a flat sheet membrane module, the frame includes a lower horizontal tube, a middle horizontal tube, an upper horizontal tube, a vertical tube and a membrane support, the upper part of the vertical tube is connected to the upper horizontal tube and the lower part is connected to the lower horizontal tube, the aeration module includes an aeration main pipe and aeration branch pipes, the aeration main pipe is connected to an aeration fan through an aeration connecting pipe, and the aeration branch pipes are arranged on both sides of the aeration main pipe and connected to the aeration main pipe. The pipes are connected, and through holes are provided on the aeration branch pipes; the main aeration pipe is located above the lower horizontal pipe, and the middle horizontal pipe is located above the main aeration pipe and connected to the vertical pipe; the membrane support is connected to the middle horizontal pipe; the cleaner lifting assembly is divided into a cleaner lifting assembly with slide rails and a cleaner lifting assembly without slide rails. The cleaner lifting assembly with slide rails includes slide rails, sliders, winding spools, cables, gantry brackets or triangular brackets, lifting vertical pipes or screws, handwheels or electric mechanisms. The electric mechanism includes a motor and two gears. The hollow fiber membrane assembly is fixedly installed in the frame, with the upper part fixedly connected to the upper horizontal pipe and the lower part set on the membrane support. The upper part of the frame is fixedly connected to the middle horizontal tube, or the flat membrane module is vertically installed in a slot fixed to the upper and middle horizontal tubes and perpendicular to the groove. A slide rail is installed inside the vertical tube. The main cleaning pipe is horizontally installed with sliders at both ends, connected to the slide rail. The cleaning branch pipe is parallel to the membrane module and horizontally installed between two adjacent membrane modules, with one end connected to the main cleaning pipe. The lower part of the lifting vertical tube is fixedly connected to the main cleaning pipe, and a lifting lug is installed at the top, or the lower part of the screw is fixedly connected to the main cleaning pipe. The lower end of the vertical column of the gantry frame is fixedly connected to the upper horizontal tube, and a crossbeam is installed at the top of the vertical column. Nuts are installed... Placed on the screw, the outside of the nut is rotatably connected to the crossbeam, and the handwheel is fixedly connected to the nut. Alternatively, the outside of the nut is fixedly connected to a gear, and another gear is set on the shaft of the motor. The motor is fixedly connected to the crossbeam, and the gear on the outside of the nut meshes with the gear on the motor shaft. Or, the bottom of the triangular bracket is fixedly set on the upper part of the sewage tank wall, and the top is set on the upper part of the lifting lug. A guide wheel is set on the top of the triangular bracket, and the handwheel or motor is set on the top of the sewage tank wall. The winding shaft is connected to the handwheel or set on the shaft of the motor. The winding shaft is connected to the lifting lug at the top of the lifting vertical pipe by a cable.The railless washer lifting assembly includes a guide ring, a washer hanger, a gantry bracket or tripod bracket, a handwheel or motor, a winding spool, and a cable. The guide ring is located inside the four corners of the upper horizontal tube or inside the upper part of the vertical tube. The washer hanger includes an upper frame, a lower frame, a connecting vertical tube or cable, and lifting lugs. The upper frame is located above the guide ring, and the lower frame is located below the guide ring. The connecting vertical tube or cable passes through the guide ring, with its upper part connected to the upper frame and its lower part connected to the lower frame. The lifting lugs are located on the upper part of the upper frame, and their lower parts are connected to the four corners of the upper frame. The main washer pipe is horizontally located on one side of the lower part of the lower frame and connected to the lower frame. The washer branch pipes are parallel to the membrane modules and horizontally located between adjacent membrane modules. Between the components, one end is connected to the cleaning main pipe. The lower end of the vertical column of the gantry bracket is fixedly connected to the upper horizontal pipe. The horizontal beam is set at the top of the vertical column. The bottom of the triangular bracket is fixedly set on the upper part of the sewage tank wall, and the top is set on the upper part of the lifting lug. A guide wheel is set on the top of the triangular bracket. The handwheel or motor is set in the middle of the crossbeam of the gantry bracket or on the top of the sewage tank wall. The winding shaft is connected to the handwheel or set on the shaft of the motor. The winding shaft is connected to the lifting lug by a cable. The filter membrane lifting assembly includes a slide rail, a slider, an inner frame, a winding shaft, a cable, a gantry bracket or triangular bracket, a lifting vertical pipe or screw, a handwheel or electric mechanism. The electric mechanism includes a motor and two gears. The inner frame includes an inner lower horizontal pipe, an inner... The upper horizontal tube, inner vertical tube, and hollow fiber membrane assembly are fixedly connected at the top and bottom to the inner upper horizontal tube, respectively. Alternatively, the flat membrane assembly is vertically installed in a slot that is fixed to the inner upper and inner lower horizontal tubes and the groove is perpendicular to the slot. A slide rail is installed inside the vertical tube. The inner lower and inner upper horizontal tubes are horizontally installed with sliders at both ends, which are connected to the slide rail. The inner lower and inner upper horizontal tubes are connected through the inner vertical tube. The lower part of the lifting vertical tube is fixedly connected to the inner lower or inner upper horizontal tube, and a lifting lug is installed at the top. Alternatively, the lower part of the screw is fixedly connected to the inner lower or inner upper horizontal tube. The lower end of the vertical column of the gantry frame is fixedly connected to the upper horizontal tube. A crossbeam is installed at the top of the vertical column, and a nut is installed on the screw. The external part is rotatably connected to the crossbeam, the handwheel is fixedly connected to the nut, or the outside of the nut is fixedly connected to a gear, and another gear is set on the shaft of the motor. The motor is fixedly connected to the crossbeam, and the gear on the outside of the nut meshes with the gear on the motor shaft. Alternatively, the bottom of the triangular bracket is fixedly set on the upper part of the sewage tank wall, and the top is set on the upper part of the lifting lug. A guide wheel is set on the top of the triangular bracket, and the handwheel or motor is set on the top of the sewage tank wall. The winding shaft is connected to the handwheel or set on the shaft of the motor. The winding shaft is connected to the lifting lug at the top of the lifting vertical pipe through a cable. The cleaning main pipe is horizontally set on the outside of the vertical pipe, and the cleaning branch pipe is parallel to the membrane module and horizontally set between two adjacent membrane modules.The cleaning unit's side-shifting assembly includes a cable, guide wheel, slide rail, slider, triangular bracket, winding spool, handwheel or motor. The hollow fiber membrane assembly is fixedly installed within the frame, connected to the upper horizontal tube at the top and positioned on the upper part of the membrane support, fixedly connected to the middle horizontal tube. Alternatively, the flat membrane assembly is vertically positioned in a slot fixed to the upper and middle horizontal tubes and perpendicular to the groove. The slide rail is positioned on the upper part of the upper horizontal tube. The main cleaning pipe is horizontally positioned with sliders at both ends, connected to the slide rail. The cleaning branch pipe is vertically positioned, with its top end connected to the main cleaning pipe. The guide wheel on the left is positioned on the upper part of the left upper horizontal tube, and the guide wheel on the right is positioned on the upper part of the right upper horizontal tube, connected to the upper horizontal tube via a support base. The cable passes over the left guide wheel and connects to the basket, connects to the main cleaning pipe in the middle, then passes over the right guide wheel and connects to the lifting lug. The bottom of the triangular bracket is fixedly positioned... A guide wheel is installed at the top of a triangular support on the upper part of the sewage tank wall. A handwheel or motor is installed at the top of the sewage tank wall. The winding spool is connected to the handwheel or installed on the shaft of the motor. The winding spool is connected to the lifting lug via a cable. The cleaner includes a main cleaning pipe, cleaning branch pipes, a brush head or a vibrating motor. The main cleaning pipe is connected to the cleaning branch pipes. The cleaning branch pipes have through holes and are arranged parallel to the brush head. The main cleaning pipe is connected to the cleaning connecting pipe. The cleaning connecting pipe is connected to the cleaning water pump or cleaning blower. A check valve is installed at the outlet of the cleaning water pump and at the outlet of the cleaning blower on the cleaning connecting pipe. The vibrating motor is installed on the main cleaning pipe and is a linear motor or an oscillating motor. The membrane module is connected to the water collection pipe, or connected to the water collection pipe through the membrane outlet pipe. The water collection pipe is located outside the upper horizontal pipe or outside the inner upper horizontal pipe. The product water pipe is connected to the product water pump.

[0011] Its beneficial effects are:

[0012] When the water production of the self-cleaning filter membrane device of the present invention decreases, the cleaner is activated. The cleaner moves up and down, or moves up and down the membrane module, or moves left and right to clean the membrane module, so that the sludge on the surface of the membrane module is removed, thereby restoring the water production capacity of the membrane module. The self-cleaning filter membrane device of the present invention can clean and remove sludge from the filter membrane without disassembling the membrane module, in the environment in which the filter membrane device is operating. During cleaning, no manual flushing is required, which can save manpower and improve work efficiency. Attached Figure Description

[0013] The self-cleaning filter membrane device of the present invention will be further described in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 This is a front view of the self-cleaning filter membrane device of the present invention. The filter membrane lifting assembly in the figure is a filter membrane lifting assembly with a handwheel and a slide rail.

[0015] Figure 2 This is a front view of the self-cleaning filter membrane device of the present invention, showing a cleaner lifting assembly with a sliding rail and an electric motor.

[0016] Figure 3 This is a top view schematic diagram of the self-cleaning filter membrane device of the present invention, showing a cleaner lifting assembly with lifting lugs and sliding rails.

[0017] Figure 4 This is a front view of the self-cleaning filter membrane device of the present invention, showing the filter membrane lifting assembly with a handwheel.

[0018] Figure 5 This is a front view of the self-cleaning filter membrane device of the present invention, showing the filter membrane lifting assembly equipped with an electric motor.

[0019] Figure 6 This is a top view schematic diagram of the filter membrane lifting assembly with lifting lugs in the self-cleaning filter membrane device of the present invention.

[0020] Figure 7 This is a front view of the self-cleaning filter membrane device of the present invention, showing the cleaning device side-shifting assembly with a handwheel.

[0021] Figure 8 This is a front view of the self-cleaning filter membrane device of the present invention, showing the cleaning device side-shifting assembly with an electric motor.

[0022] Figure 9 This is a top view schematic diagram of the self-cleaning filter membrane device of the present invention, showing the cleaning device side-shifting assembly with lifting lugs.

[0023] Figure 10 This is a schematic diagram of the self-cleaning filter membrane device of the present invention, showing the lifting assembly of the cleaner with sliding rails and lifting lugs in operation.

[0024] Figure 11 This is a schematic diagram of the self-cleaning filter membrane device of the present invention with the filter membrane lifting assembly with lifting lugs in operation.

[0025] Figure 12 This is a schematic diagram of the self-cleaning filter membrane device of the present invention in operation, featuring a side-shifting component for the cleaner with lifting lugs.

[0026] Figure 13 This is a front view of the self-cleaning filter membrane device of the present invention, showing a cleaner lifting assembly without slide rails and equipped with a gantry bracket.

[0027] Figure 14 This is a front view of the self-cleaning filter membrane device of the present invention, showing a cleaner lifting assembly without a slide rail and equipped with a triangular bracket.

[0028] Figure 15 This is a schematic diagram of a filtration membrane device that uses existing technology to install hollow fiber membrane modules.

[0029] Figure 16 This is a schematic diagram of a hollow fiber membrane module in the prior art.

[0030] Figure 17 This is a schematic diagram of a filter membrane device with a flat-sheet membrane module installed using existing technology, with the top plate on the front side removed.

[0031] Figure 18 This is a schematic diagram of a conventional flat-sheet membrane module.

[0032] In the diagram, 1 is the membrane module, 2 is the slide rail, 3 is the slider, 4 is the lifting riser, 5 is the gantry support, 6 is the permeate pipe, 7 is the permeate pump, 8 is the motor, 9 is the winding spool, 10 is the inner riser, 11 is the riser, 12 is the handwheel, 13 is the slot, 14 is the main cleaning pipe, 15 is the collection pipe, 16 is the wastewater tank, 17 is the clear water tank, 18 is the cleaning branch pipe, 19 is the lower horizontal pipe, 20 is the upper horizontal pipe, 21 is the middle horizontal pipe, 22 is the hollow fiber membrane module, 23 is the hollow fiber membrane fiber, 24 is the flat sheet membrane module, 25 is the membrane sheet, 26 is the guide wheel, 27 is the cable, 28 is the inner upper horizontal pipe, and 29 is the inner lower horizontal pipe. 30 is the crane, 31 is the hook, 32 is the main aeration pipe, 33 is the branch aeration pipe, 34 is the aeration connecting pipe, 35 is the aeration blower, 36 is the tank wall, 37 is the membrane outlet pipe, 38 is the screw, 39 is the nut, 40 is the lifting lug, 41 is the gear, 42 is the hanging basket, 43 is the check valve, 44 is the cleaning water pump, 45 is the cleaning blower, 46 is the cleaning connecting pipe, 47 is the cleaning water tank, 48 is the outlet, 49 is the upper cavity, 50 is the lower cavity, 51 is the support base, 52 is the upper frame, 53 is the lower frame, 54 is the guide ring, 55 is the triangular bracket, 56 is the vertical column, 57 is the crossbeam, and 58 is the connecting vertical pipe. Detailed Implementation

[0033] The structure and features of the self-cleaning filter membrane device of the present invention will be described in detail below with reference to the accompanying drawings:

[0034] A self-cleaning filter membrane device, such as Figure 1 , Figure 3 , Figure 12As shown: Its structure includes a membrane module, a frame, a cleaner, an aeration module, and a filter membrane lifting module or cleaner lifting module or cleaner side-shifting module; the membrane module is divided into hollow fiber membrane modules and flat sheet membrane modules. The frame includes a lower horizontal tube, a middle horizontal tube, an upper horizontal tube, a vertical tube, and a membrane support. The upper part of the vertical tube is connected to the upper horizontal tube, and the lower part is connected to the lower horizontal tube. The aeration module includes an aeration main pipe and aeration branch pipes. The aeration main pipe is connected to the aeration blower through an aeration connecting pipe. The aeration branch pipes are located on both sides of the aeration main pipe and are connected to the aeration main pipe. The aeration branch pipes are provided with through holes. The aeration main pipe is located above the lower horizontal tube, and the middle horizontal tube is located above the aeration main pipe and is connected to the vertical tube. The membrane support is connected to the middle horizontal tube. The cleaner lifting module is divided into a cleaner lifting module with slide rails and a cleaner lifting module without slide rails. The cleaner lifting module with slide rails, such as... Figure 1 , Figure 2 , Figure 3 , Figure 10 The system includes a slide rail, slider, winding spool, cable, gantry bracket or triangular bracket, lifting vertical tube or screw, handwheel or electric mechanism. The electric mechanism includes a motor and two gears. The hollow fiber membrane module is fixedly installed in the frame, with its upper part fixedly connected to the upper horizontal tube and its lower part set on the upper part of the membrane bracket and fixedly connected to the middle horizontal tube. Alternatively, the flat membrane module is vertically set in a slot fixed to the upper and middle horizontal tubes and the groove is perpendicular to the slot. The slide rail is set inside the vertical tube. The cleaning main tube is set horizontally with sliders at both ends, and the sliders are connected to the slide rail. The cleaning branch tube is parallel to the membrane module and is set horizontally between two adjacent membrane modules, with one end connected to the cleaning main tube. The lower part of the lifting vertical tube is fixedly connected to the cleaning main tube, and a lifting lug is set at the top. Alternatively, the lower part of the screw is connected to the cleaning main tube. The main washing pipe is fixedly connected; the lower end of the vertical column of the gantry bracket is fixedly connected to the upper horizontal pipe; the horizontal beam is set at the top of the vertical column; the nut is set on the screw rod; the outside of the nut is rotatably connected to the horizontal beam; the handwheel is fixedly connected to the nut; or the outside of the nut is fixedly connected to a gear; the other gear is set on the shaft of the motor; the motor is fixedly connected to the horizontal beam; the gear on the outside of the nut meshes with the gear on the motor shaft; or the bottom of the triangular bracket is fixedly set on the upper part of the sewage tank wall; the top is set on the upper part of the lifting lug; a guide wheel is set on the top of the triangular bracket; the handwheel or motor is set on the top of the sewage tank wall; the winding shaft is connected to the handwheel or set on the shaft of the motor; the winding shaft is connected to the lifting lug at the top of the lifting vertical pipe by a cable; the lifting assembly of the washer without a slide rail, such as... Figure 13 , Figure 14As shown: Includes a guide ring, cleaning hanger, gantry bracket or triangular bracket, handwheel or motor, winding spool and cable. The guide ring is located on the inner side of the four corners of the upper horizontal pipe or the inner side of the upper part of the vertical pipe. The cleaning hanger includes an upper frame, a lower frame, connecting vertical pipes or cables, and lifting lugs. The upper frame is located above the guide ring, and the lower frame is located below the guide ring. The connecting vertical pipe or cable passes through the guide ring, with its upper part connected to the upper frame and its lower part connected to the lower frame. The lifting lugs are located on the upper part of the upper frame, and their lower parts are connected to the four corners of the upper frame. The main cleaning pipe is horizontally located on one side of the lower part of the lower frame. Connected to the lower frame, the cleaning branch pipe is parallel to the membrane module and horizontally positioned between two adjacent membrane modules. One end is connected to the main cleaning pipe. The lower end of the vertical column of the gantry frame is fixedly connected to the upper horizontal pipe. The crossbeam is positioned at the top of the vertical column. The bottom of the triangular bracket is fixedly positioned on the upper part of the wastewater tank wall, and the top is positioned on the upper part of the lifting lug. A guide wheel is installed at the top of the triangular bracket. The handwheel or motor is positioned in the middle of the crossbeam of the gantry frame or at the top of the wastewater tank wall. The winding spool is connected to the handwheel or positioned on the shaft of the motor. The winding spool is connected to the lifting lug via a cable. The filter membrane lifting assembly, such as... Figure 4 , Figure 5 , Figure 6 , Figure 11 The structure includes a slide rail, slider, inner frame, winding spool, cable, gantry or triangular bracket, lifting vertical tube or screw, handwheel or electric mechanism. The electric mechanism includes a motor and two gears. The inner frame includes an inner lower horizontal tube, an inner upper horizontal tube, and an inner vertical tube. The upper part of the hollow fiber membrane assembly is fixedly connected to the inner upper horizontal tube, and the lower part is fixedly connected to the inner lower horizontal tube. Alternatively, the flat membrane assembly is vertically installed in a slot that is fixed to the inner upper and inner lower horizontal tubes and the groove is perpendicular to the slot. The slide rail is located inside the vertical tube. The inner lower and inner upper horizontal tubes are horizontally arranged, with sliders at both ends connected to the slide rail. The inner lower and inner upper horizontal tubes are connected through the inner vertical tube. The lower part of the lifting vertical tube is fixedly connected to the inner lower or inner upper horizontal tube, and a lifting lug is provided at the top. Alternatively, the lower part of the screw is fixedly connected to the inner lower or inner upper horizontal tube. The lower end of the vertical column of the gantry bracket... The upper horizontal pipe is fixedly connected, the crossbeam is set at the top of the vertical column, the nut is set on the screw, the outside of the nut is rotatably connected to the crossbeam, the handwheel is fixedly connected to the nut, or the outside of the nut is fixedly connected to a gear, the other gear is set on the shaft of the motor, the motor is fixedly connected to the crossbeam, the gear on the outside of the nut meshes with the gear on the motor shaft, or the bottom of the triangular bracket is fixedly set on the upper part of the sewage tank wall, the top is set on the upper part of the lifting lug, a guide wheel is set on the top of the triangular bracket, the handwheel or motor is set on the top of the sewage tank wall, the winding spool is connected to the handwheel or set on the shaft of the motor, the winding spool is connected to the lifting lug at the top of the lifting vertical pipe by a cable; the cleaning main pipe is horizontally set on the outside of the vertical pipe, the cleaning branch pipe is parallel to the membrane module and horizontally set between two adjacent membrane modules; the cleaner side shifting assembly, such as Figure 7 , Figure 8 , Figure 9 , Figure 12 The system includes a cable, guide wheel, slide rail, slider, triangular bracket, winding spool, handwheel or motor. The hollow fiber membrane module is fixedly installed within the frame, connected to the upper horizontal pipe at the top and positioned on the upper part of the membrane support, fixedly connected to the middle horizontal pipe. Alternatively, the flat membrane module is vertically installed in a slot fixed to the upper and middle horizontal pipes and perpendicular to the groove. The slide rail is positioned on the upper part of the upper horizontal pipe. The main cleaning pipe is horizontally positioned with sliders at both ends, connected to the slide rail. The cleaning branch pipe is vertically positioned, with its top end connected to the main cleaning pipe. The guide wheel on the left is positioned on the upper part of the left upper horizontal pipe, and the guide wheel on the right is positioned on the upper part of the right upper horizontal pipe, connected to the upper horizontal pipe via a support base. The cable passes over the left guide wheel and connects to the basket, connects to the main cleaning pipe in the middle, then passes over the right guide wheel and connects to the lifting lug. The bottom of the triangular bracket is fixedly positioned in the wastewater... A guide wheel is installed on the top of the triangular bracket on the upper part of the pool wall. A handwheel or motor is installed on the top of the sewage pool wall. The winding spool is connected to the handwheel or installed on the shaft of the motor. The winding spool is connected to the lifting lug by a cable. The cleaner includes a main cleaning pipe, a branch cleaning pipe, a brush head or a vibrating motor. The main cleaning pipe is connected to the branch cleaning pipe. A through hole is provided on the branch cleaning pipe. The branch cleaning pipe is arranged parallel to the brush head. The main cleaning pipe is connected to the cleaning connecting pipe. The cleaning connecting pipe is connected to the cleaning water pump or the cleaning blower. A check valve is installed on the cleaning connecting pipe at the outlet of the cleaning water pump and the outlet of the cleaning blower. The vibrating motor is installed on the main cleaning pipe and is a linear motor or an oscillating motor. The membrane module is connected to the water collection pipe, or connected to the water collection pipe through the membrane outlet pipe. The water collection pipe is located on the outside of the upper horizontal pipe or the outside of the inner upper horizontal pipe. The product water pipe is connected to the product water pump.

[0035] The principle and operation of the self-cleaning filter membrane device of the present invention will be described in detail below with reference to the accompanying drawings:

[0036] Example 1: Self-cleaning operation of the self-cleaning filter membrane device of the present invention with a cleaner lifting assembly.

[0037] When the self-cleaning membrane filter device of the present invention has been running for a period of time and the water output from the filter membrane decreases, the cleaning device lifting assembly of the self-cleaning membrane filter device of the present invention is activated. The cleaning device is moved up and down to clean the membrane assembly. Taking a cleaning device lifting assembly with lifting lugs as an example... Figure 3 , Figure 10As shown: The self-cleaning filter membrane device of this invention is submerged in a wastewater tank. The main aeration pipe is connected to an aeration blower via an aeration connecting pipe, and the water collection pipe is connected to a product water pump via a product water pipe. The cleaning water pump and cleaning blower are connected to the main cleaning pipe via a cleaning connecting pipe. The lifting lug is connected to the hook on a crane. During cleaning, the product water pump is first turned off, and the cleaning water pump is turned on. The cleaning water pump draws water from the cleaning tank and sprays it out through the cleaning branch pipe to rinse the surface of the membrane module. Alternatively, the cleaning blower is turned on to blow air onto the surface of the membrane module. Then, the crane is started, and the hook is slowly lowered. Under the action of gravity, the cleaning branch pipe slides down along the slide rail. When it slides to the bottom of the membrane module, the hook descent is stopped, and then the crane is used to lift the hook. The hook drives the cleaning branch pipe to move from bottom to top. Water or air is continuously sprayed onto the surface of the membrane module through the cleaning branch pipe, or the brush head is scraped. This is repeated three to five times to clean the sludge off the surface of the membrane module, allowing the membrane module to restore its water production flux. This invention's self-cleaning filter membrane device, equipped with a handwheel and motor-driven cleaning device lifting assembly, is as follows: Figure 1 , Figure 2 , Figure 13 , Figure 14 As shown: The lifting and lowering of the cleaner can also be achieved by turning the handwheel or starting the motor to rotate forward and reverse. After cleaning is completed, the cleaning water pump and cleaning fan are turned off, and the product water pump is turned on to pump the water treated by the membrane module into the clear water tank and start the water production operation again.

[0038] Example 2: Self-cleaning operation of the self-cleaning filter membrane device of the present invention with a filter membrane lifting assembly.

[0039] When the self-cleaning filter membrane device of the present invention is activated, and the filter membrane lifting assembly performs a cleaning operation by moving the membrane assembly up and down, taking a filter membrane lifting assembly with lifting lugs as an example, as follows: Figure 6 , Figure 11 As shown: The self-cleaning filtration membrane device of the present invention is immersed in a sewage tank. The lifting lug is connected to the hook on the crane. During cleaning, the permeate pump is first turned off, and the cleaning pump is turned on. The cleaning pump draws water from the cleaning tank and sprays it out through the cleaning branch pipe to rinse the surface of the membrane module. Alternatively, the cleaning fan is turned on to blow air onto the surface of the membrane module. Then, the crane is started, and the hook is slowly raised. The hook drives the inner upper horizontal pipe, inner lower horizontal pipe, and membrane module to rise along the slide rail. When the lower part of the membrane module is level with the cleaning branch pipe, the hook rise is stopped, and the crane is used to lower the hook. Under the pull of its own weight, the membrane module moves from top to bottom. Water or air is continuously sprayed onto the surface of the membrane module through the cleaning branch pipe, or the brush head scrapes it. This is repeated three to five times to clean the sludge off the surface of the membrane module, restoring the permeate flux of the membrane module. The self-cleaning filtration membrane device of the present invention, equipped with a filter membrane lifting component with a handwheel and a motor, is as follows. Figure 4 , Figure 5As shown: The membrane module can also be raised and lowered by turning the handwheel or starting the motor to rotate forward and reverse. After cleaning, the cleaning water pump and cleaning fan are turned off, and the product water pump is turned on to pump the water treated by the membrane module into the clear water tank and start the water production operation again.

[0040] Example 3: Self-cleaning operation of the self-cleaning filter membrane device of the present invention with a cleaner side-shifting component.

[0041] When the self-cleaning filter membrane device of the present invention is activated, the cleaning device side-shifting assembly cleans the membrane module by moving the cleaning device left and right. Taking a cleaning device side-shifting assembly with lifting lugs as an example, Figure 7 , Figure 12 As shown: The self-cleaning membrane filtration device of the present invention is immersed in a wastewater tank. The lifting lugs are connected to the hooks on the crane. During cleaning, the permeate pump is first turned off, and the cleaning pump is turned on. The cleaning pump draws water from the cleaning tank and sprays it out through the cleaning branch pipe to rinse the surface of the membrane module. Alternatively, the cleaning fan is turned on to blow air onto the surface of the membrane module. Then, the crane is started, and the hook is slowly raised, driving the cable to pull the cleaning main pipe and moving the cleaning branch pipe from left to right along the gap of the membrane module. When the cleaning branch pipe moves to the right side of the membrane module, the hook is stopped from rising, and then the crane is used to lower the hook. At this time, under the pull of the weight of the basket, the cleaning branch pipe moves from right to left until it stops on the left side of the membrane module. Water or air is continuously sprayed onto the surface of the membrane module through the cleaning branch pipe, or the brush head is scraped. Repeating this three to five times will remove the sludge from the surface of the membrane module and restore the permeate flux of the membrane module. The self-cleaning membrane filtration device of the present invention, which is equipped with a handwheel and a motor-driven cleaning device side-moving component, is as follows. Figure 8 , Figure 9 As shown: The left and right movement of the cleaner can also be achieved by turning the handwheel or starting the motor to rotate forward and reverse. After cleaning is completed, the cleaning water pump and cleaning fan are turned off, the product water pump is turned on, and the water treated by the membrane module is pumped into the clear water tank to start the water production operation again.

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A self-cleaning filter membrane device, an improvement on the filter membrane device, mainly composed of a frame, a cleaner, and a membrane assembly, characterized in that, Its structure includes a membrane module, a frame, a cleaner, an aeration module, and a filter membrane lifting module or a cleaner lifting module or a cleaner side-shifting module. The membrane module is divided into hollow fiber membrane modules and flat sheet membrane modules. The frame includes a lower horizontal tube, a middle horizontal tube, an upper horizontal tube, a vertical tube, and a membrane support. The upper part of the vertical tube connects to the upper horizontal tube, and the lower part connects to the lower horizontal tube. The aeration module includes a main aeration pipe and branch aeration pipes. The main aeration pipe is connected to an aeration blower via an aeration connecting pipe. Branch aeration pipes are located on both sides of the main aeration pipe and connected to it. Through holes are provided on the branch aeration pipes. The main aeration pipe is equipped with... Above the lower horizontal pipe, the middle horizontal pipe is located above the aeration main pipe and connected to the vertical pipe. The membrane support is connected to the middle horizontal pipe. The cleaner lifting assembly is divided into a cleaner lifting assembly with slide rails and a cleaner lifting assembly without slide rails. The cleaner lifting assembly with slide rails includes slide rails, sliders, winding spools, cables, gantry brackets or triangular brackets, lifting vertical pipes or screws, handwheels or electric mechanisms. The electric mechanism includes a motor and two gears. The hollow fiber membrane assembly is fixedly installed in the frame, with its upper part fixedly connected to the upper horizontal pipe and its lower part located above the membrane support and fixedly connected to the middle horizontal pipe, or... The flat membrane module is vertically mounted in a slot that is fixed to the upper and middle horizontal tubes and perpendicular to the groove. A slide rail is positioned inside the vertical tube. The main cleaning pipe is horizontally mounted with sliders at both ends, connected to the slide rail. A cleaning branch pipe is parallel to the membrane module and horizontally positioned between two adjacent membrane modules, with one end connected to the main cleaning pipe. The lower part of the lifting vertical tube is fixedly connected to the main cleaning pipe, and a lifting lug is mounted at the top, or the lower part of a screw is fixedly connected to the main cleaning pipe. The lower end of the vertical column of the gantry frame is fixedly connected to the upper horizontal tube. A crossbeam is positioned at the top of the vertical column, and a nut is mounted on the screw. The outer part of the mother is rotatably connected to the crossbeam, the handwheel is fixedly connected to the nut, or the outer side of the nut is fixedly connected to a gear, and another gear is set on the shaft of the motor. The motor is fixedly connected to the crossbeam, and the gear on the outer side of the nut meshes with the gear on the shaft of the motor. Alternatively, the bottom of the triangular bracket is fixedly set on the upper part of the sewage tank wall, and the top is set on the upper part of the lifting lug. A guide wheel is set on the top of the triangular bracket, and the handwheel or motor is set on the top of the sewage tank wall. The winding shaft is connected to the handwheel or set on the shaft of the motor. The winding shaft is connected to the lifting lug at the top of the lifting vertical pipe by a cable.The railless washer lifting assembly includes a guide ring, a washer hanger, a gantry bracket or tripod bracket, a handwheel or motor, a winding spool, and a cable. The guide ring is located inside the four corners of the upper horizontal tube or inside the upper part of the vertical tube. The washer hanger includes an upper frame, a lower frame, a connecting vertical tube or cable, and lifting lugs. The upper frame is located above the guide ring, and the lower frame is located below the guide ring. The connecting vertical tube or cable passes through the guide ring, with its upper part connected to the upper frame and its lower part connected to the lower frame. The lifting lugs are located on the upper part of the upper frame, and their lower parts are connected to the four corners of the upper frame. The main washer pipe is horizontally located on one side of the lower part of the lower frame and connected to the lower frame. The washer branch pipes are parallel to the membrane modules and horizontally located between adjacent membrane modules. Between the components, one end is connected to the cleaning main pipe. The lower end of the vertical column of the gantry bracket is fixedly connected to the upper horizontal pipe. The horizontal beam is set at the top of the vertical column. The bottom of the triangular bracket is fixedly set on the upper part of the sewage tank wall, and the top is set on the upper part of the lifting lug. A guide wheel is set on the top of the triangular bracket. The handwheel or motor is set in the middle of the crossbeam of the gantry bracket or on the top of the sewage tank wall. The winding shaft is connected to the handwheel or set on the shaft of the motor. The winding shaft is connected to the lifting lug by a cable. The filter membrane lifting assembly includes a slide rail, a slider, an inner frame, a winding shaft, a cable, a gantry bracket or triangular bracket, a lifting vertical pipe or screw, a handwheel or electric mechanism. The electric mechanism includes a motor and two gears. The inner frame includes an inner lower horizontal pipe, an inner... The upper horizontal tube, inner vertical tube, and hollow fiber membrane assembly are fixedly connected at the top and bottom to the inner upper horizontal tube, respectively. Alternatively, the flat membrane assembly is vertically installed in a slot that is fixed to the inner upper and inner lower horizontal tubes and the groove is perpendicular to the slot. A slide rail is installed inside the vertical tube. The inner lower and inner upper horizontal tubes are horizontally installed with sliders at both ends, which are connected to the slide rail. The inner lower and inner upper horizontal tubes are connected through the inner vertical tube. The lower part of the lifting vertical tube is fixedly connected to the inner lower or inner upper horizontal tube, and a lifting lug is installed at the top. Alternatively, the lower part of the screw is fixedly connected to the inner lower or inner upper horizontal tube. The lower end of the vertical column of the gantry frame is fixedly connected to the upper horizontal tube. A crossbeam is installed at the top of the vertical column, and a nut is installed on the screw. The external part is rotatably connected to the crossbeam, the handwheel is fixedly connected to the nut, or the outside of the nut is fixedly connected to a gear, and another gear is set on the shaft of the motor. The motor is fixedly connected to the crossbeam, and the gear on the outside of the nut meshes with the gear on the motor shaft. Alternatively, the bottom of the triangular bracket is fixedly set on the upper part of the sewage tank wall, and the top is set on the upper part of the lifting lug. A guide wheel is set on the top of the triangular bracket, and the handwheel or motor is set on the top of the sewage tank wall. The winding shaft is connected to the handwheel or set on the shaft of the motor. The winding shaft is connected to the lifting lug at the top of the lifting vertical pipe through a cable. The cleaning main pipe is horizontally set on the outside of the vertical pipe, and the cleaning branch pipe is parallel to the membrane module and horizontally set between two adjacent membrane modules.The cleaning unit's side-shifting assembly includes a cable, guide wheel, slide rail, slider, triangular bracket, winding spool, handwheel or motor. The hollow fiber membrane assembly is fixedly installed within the frame, connected to the upper horizontal tube at the top and positioned on the upper part of the membrane support, fixedly connected to the middle horizontal tube. Alternatively, the flat membrane assembly is vertically positioned in a slot fixed to the upper and middle horizontal tubes and perpendicular to the groove. The slide rail is positioned on the upper part of the upper horizontal tube. The main cleaning pipe is horizontally positioned with sliders at both ends, connected to the slide rail. The cleaning branch pipe is vertically positioned, with its top end connected to the main cleaning pipe. The guide wheel on the left is positioned on the upper part of the left upper horizontal tube, and the guide wheel on the right is positioned on the upper part of the right upper horizontal tube, connected to the upper horizontal tube via a support base. The cable passes over the left guide wheel and connects to the basket, connects to the main cleaning pipe in the middle, then passes over the right guide wheel and connects to the lifting lug. The bottom of the triangular bracket is fixedly positioned... A guide wheel is installed at the top of a triangular support on the upper part of the sewage tank wall. A handwheel or motor is installed at the top of the sewage tank wall. The winding spool is connected to the handwheel or installed on the shaft of the motor. The winding spool is connected to the lifting lug via a cable. The cleaner includes a main cleaning pipe, cleaning branch pipes, a brush head or a vibrating motor. The main cleaning pipe is connected to the cleaning branch pipes. The cleaning branch pipes have through holes and are arranged parallel to the brush head. The main cleaning pipe is connected to the cleaning connecting pipe. The cleaning connecting pipe is connected to the cleaning water pump or cleaning blower. A check valve is installed at the outlet of the cleaning water pump and at the outlet of the cleaning blower on the cleaning connecting pipe. The vibrating motor is installed on the main cleaning pipe and is a linear motor or an oscillating motor. The membrane module is connected to the water collection pipe, or connected to the water collection pipe through the membrane outlet pipe. The water collection pipe is located outside the upper horizontal pipe or outside the inner upper horizontal pipe. The product water pipe is connected to the product water pump.

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