Reverse osmosis membrane circulating cleaning device and method

Abstract

The reverse osmosis membrane circulating cleaning device comprises mounting plates which are arranged in a cross shape, a middle plate is arranged between the mounting plates, two grooves are formed in the tops of the mounting plates, the two grooves are arranged in a bilateral symmetry mode, and lifting plates are arranged on the sides, close to the middle plate, of the mounting plates. The side, away from the middle position plate, of each lifting plate is fixedly connected with two movable rods, and the two movable rods are symmetrically arranged left and right. Through mutual cooperation of the component detection mechanism, the material storage box, the conveying pipe, the flushing pipe, the flushing pump, the connecting plate, the hinged block, the transverse rod, the sleeve, the linkage rod, the sliding block, the rotating rod, the rotating block and other components, the parts can be conveniently detected; when the PH value of a pollutant is detected, a corresponding cleaning agent can be selected according to a detection result, and the cleaning effect of the reverse osmosis membrane is improved.

Description

Technical Field

[0001] The invention relates to the technical field of reverse osmosis membrane cleaning, and in particular to a reverse osmosis membrane circulation cleaning device and method. Background Art

[0002] Reverse osmosis membrane is a key technology used in water treatment. Through the selective osmosis of semipermeable membranes, impurities such as dissolved salts, organic matter, bacteria, etc. are separated from water under pressure. The maintenance of reverse osmosis membranes directly affects their service life and water purification effect, and reverse osmosis membranes require chemical cleaning during cleaning.

[0003] Chemical cleaning is a key maintenance method to restore the performance of reverse osmosis membranes. The existing reverse osmosis membrane circulation cleaning device needs to first detect the pollutants in the membrane and select different cleaning agents for cleaning based on the test results, which is inconvenient to operate. Summary of the invention

[0004] To achieve the above object, the present invention provides the following technical solutions: A reverse osmosis membrane circulation cleaning device, comprising a cross-arranged mounting plate, a middle plate is provided between several of the mounting plates, two grooves are provided on the top of several of the mounting plates, the two grooves are symmetrically arranged, a lifting plate is provided on one side of several of the mounting plates close to the middle plate, two movable rods are fixedly connected to one side of several of the lifting plates away from the middle plate, and the two movable rods are symmetrically arranged, the movable rods penetrate the inner cavity of the groove, and the ends of every two adjacent movable rods away from the middle plate are fixedly connected to a sliding plate together. The side of the mounting plate away from the middle plate is fixedly connected with an L-shaped limit plate, and the L-shaped limit plate is located between the two grooves, and the vertical side of the L-shaped limit plate is slidably connected with a sliding plate, and the side of the sliding plate away from the middle plate is fixedly connected with a front side plate near the top, and a lifting rod is passed through the inner cavity of the front side plate, and the bottom end of the lifting rod is inserted into the horizontal side of the L-shaped limit plate, and a movable spring is sleeved on the outer side of the lifting rod, and the top end of the movable spring is fixedly connected to the front side plate, and the bottom end of the movable spring is fixedly connected to the horizontal side of the L-shaped limit plate.

[0005] Preferably, two L-shaped flip plates are hinged on the side of the sliding plate away from the mid-plate, and the two L-shaped flip plates are symmetrically arranged on the left and right, an insertion rod is passed through the inner cavity of the L-shaped flip plate, and the end of the insertion rod close to the mid-plate is inserted into the mounting plate, and the two L-shaped flip plates are hinged with a translation plate near the bottom, and a clamping plate is fixedly connected to the side of the mounting plate away from the mid-plate near the bottom, and the two translation plates are slidably connected to the clamping plate.

[0006] Preferably, the two translation plates are fixedly connected to one side away from the mid-position plate with a clamping plate, the two clamping plates are provided with a rubber block on the corresponding side, a reverse osmosis membrane is commonly bonded between the two rubber blocks, an L-shaped welding plate is fixedly connected to the bottom center of the mounting plate, and a collection frame is fixedly connected to the other side of the L-shaped welding plate.

[0007] Preferably, a detection mechanism is fixedly connected to one lateral side of the L-shaped welding plate, a PH sensor and a controller are arranged inside the detection mechanism, the PH sensor is located in the inner cavity of the collecting frame, a plurality of L-shaped fixing plates are fixedly connected to the outer side of the mid-plate, the other sides of the L-shaped fixing plates are fixedly connected to adjacent lifting plates, a cross plate is provided at the bottom of the mid-plate, a plurality of corresponding sides of the mounting plates are fixedly connected to the cross plate near the bottom, an active cylinder is fixedly connected to the top of the cross plate, and a power output shaft of the active cylinder is fixedly connected to the bottom of the mid-plate.

[0008] Preferably, two supporting plates are fixedly connected to the tops of several of the mounting plates, a base plate is commonly fixedly connected to the tops of several of the supporting plates, a column is fixedly connected to the center of the top of the base plate, a water tank is fixedly connected to the top of the column, a water inlet pipe is provided at the top of the water tank, several test tubes are plugged into the outside of the water tank, and a valve is provided in the inner cavity of the water tank.

[0009] Preferably, a plurality of material storage boxes are fixedly connected to the top of the base plate, the plurality of material storage boxes are cross-arranged, a partition is provided in the middle of the inner cavity of the material storage box, a transmission pipe is plugged into the side of the material storage box away from the mid-plate, a flushing pump is installed on the side of the plurality of transmission pipes away from the mid-plate, a flushing pipe is plugged into the other side of the flushing pump, and the other end of the test tube is fixedly connected to the top of the flushing pipe.

[0010] Preferably, several of the material storage boxes are fixedly connected with a connecting plate on the top, and two hinge blocks are fixedly connected to the connecting plate on a side away from the mid-plate near the top, a cross bar is commonly provided between the two hinge blocks, a sleeve is sleeved on the outer side of the cross bar, a connecting rod is fixedly connected to the bottom of the sleeve, and a servo motor is installed on one side of several of the connecting plates close to the mid-plate, a servo motor driver is provided inside the servo motor, and the servo motor driver is connected to a controller.

[0011] Preferably, the power output shaft of the servo motor passes through the connecting plate and is fixedly connected to a rotating block. A rotating rod is provided through the inner cavity of the rotating block. A slider is sleeved on the outside of the connecting rod. An L-shaped movable block is fixedly connected to the end of the rotating rod close to the slider. The L-shaped movable block is hinged on the slider. A spacer spring is sleeved on the outside of the rotating rod. The spacer spring is located between the rotating block and the slider. The slider is fixedly connected to a fitting plate on the side away from the mid-plate.

[0012] Preferably, the inner cavity of the material storage box is provided with two sliding grooves, the sliding grooves are slidably connected with an anti-slip plate, the anti-slip plate is fixedly connected to a Z-shaped opening and closing plate on one side close to the middle plate, the left and right sides of the anti-slip plate are fixedly connected to side plates near the top, a vertical rod is passed through the inner cavity of the side plate, the bottom end of the vertical rod is plugged into the material storage box, the Z-shaped opening and closing plate is hingedly connected to a swing block on one side close to the middle plate, a spring leaf is attached to the bottom of the swing block, and the spring leaf is fixedly connected to the Z-shaped opening and closing plate, an L-shaped positioning rod is attached to the top of the swing block, the L-shaped positioning rod is fixedly connected to the Z-shaped opening and closing plate, and a return spring is sleeved on the outer side of the vertical rod.

[0013] A method for a reverse osmosis membrane circulation cleaning device comprises the following steps: S1: When the active cylinder is started, the power output shaft can drive the middle plate to move upward. When the middle plate moves upward, it can drive several lifting plates to move upward. When the lifting plate moves upward, it can drive the sliding plate to move upward. When the sliding plate moves upward, it can drive two L-shaped flip plates to flip around the center of the plug rod. When the L-shaped flip plate flips, it can drive the translation plate to move in the opposite direction. When the translation plate moves in the opposite direction, the reverse osmosis membrane can be fixed and limited by the clamping plate; S2: When the valve is activated, the pre-treated water in the water storage tank cavity can enter the flushing pipe through the test pipe and contact the reverse osmosis membrane. At this time, part of the pre-treated water can be accumulated in the inner cavity of the collection frame and contact the PH sensor. The PH sensor can detect the PH value of the pollutant in real time and output the signal to the controller. When the controller receives the PH signal, it executes the judgment logic and outputs the PWM control instruction; S3: The servo motor driver performs forward and reverse rotation according to the PWM control command. When the servo motor rotates forward, it can drive the rotating block to rotate. When the rotating block rotates forward, it can drive the L-shaped movable block to rotate forward through the rotating rod. When the L-shaped movable block rotates forward, it can drive the bonding plate to move in a rectangular track. When the L-shaped movable block moves upward, it can contact the bottom of the swing block and drive the swing block to move upward at the same time, and contact the L-shaped positioning rod, thereby driving the Z-shaped opening and closing plate to move upward synchronously; S4: When the flushing pump is started, the inner cavity of the storage box can be pumped, so that the acidic cleaning agent and the alkaline cleaning agent are pumped into the inner cavity of the flushing pipe, thereby achieving corresponding cleaning according to the results of the pH value of the pollutant.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can realize that when the pH value of pollutants is detected, the corresponding cleaning agent can be selected according to the detection result to improve the cleaning effect of the reverse osmosis membrane through the mutual cooperation between the component detection mechanism, the material storage box, the transmission pipe, the flushing pipe, the flushing pump, the connecting plate, the hinge block, the cross bar, the sleeve, the linkage rod, the slider, the rotating rod, the rotating block and other components; 2. The present invention can fix the reverse osmosis membrane and simultaneously clean several reverse osmosis membranes through the mutual cooperation between the components such as the lifting plate, L-shaped limit plate, sliding plate, front side plate, L-shaped flip plate, plug rod, clamping plate, translation plate, and L-shaped fixing plate, thereby improving the cleaning efficiency of the reverse osmosis membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the component mounting plate structure of the present invention; Figure 3 A bottom view of the component mounting plate structure of the present invention; Figure 4 This is a schematic diagram of the structure of the L-shaped welding plate of the component of the present invention; Figure 5 It is a left plan view of the L-shaped welded plate structure of the component of the present invention; Figure 6 This is a schematic diagram of the water storage tank structure of the component of the present invention; Figure 7 It is a bottom view of the water storage tank structure of the component of the present invention; Figure 8 This is a schematic diagram of the structure of the component storage box of the present invention; Fig. 9 It is a rear view of the component storage box structure of the present invention; Fig.10 for Figure 8 Enlarged view of point A in the middle; Fig.11 for Figure 4 Enlarged view of point B in the middle; Fig.12 for Figure 8 Enlarged view of center C.

[0016] Numbers in the figure: 1. Mounting plate; 2. L-shaped welding plate; 3. Detection mechanism; 4. Collection frame; 5. Reverse osmosis membrane; 6. Clamp; 7. Test tube; 8. Water storage tank; 9. Center plate; 10. Cross plate; 11. Active cylinder; 12. Lifting plate; 13. L-shaped limit plate; 14. Sliding plate; 15. Front side plate; 16. L-shaped flip plate; 17. Insert rod; 18. Snap-on plate; 19. Translation plate; 20. L-shaped fixed plate; 21. Reset spring; 22. Vertical rod; 23. Transmission pipe; 24. Flushing Pump; 25. Flushing pipe; 26. Storage box; 27. Connecting plate; 28. Articulated block; 29. ​​Cross bar; 30. Rotating rod; 31. Rotating block; 32. L-shaped movable block; 33. Sliding block; 34. Fitting plate; 35. Z-shaped opening and closing plate; 36. Column; 37. Bottom plate; 38. Support plate; 39. L-shaped positioning rod; 40. Swing block; 41. Reed; 42. Sleeve; 43. Servo motor; 44. Anti-slip plate; 45. Side plate; 46. Movable spring; 47. Linking rod; 48. Lifting rod. DETAILED DESCRIPTION

[0017] See also Figure 1-12 , the present invention provides a technical solution: A reverse osmosis membrane circulation cleaning device, comprising a cross-arranged mounting plate 1, a middle plate 9 is provided between a plurality of mounting plates 1, two grooves are provided on the top of a plurality of mounting plates 1, the two grooves are symmetrically arranged, a lifting plate 12 is provided on a side of a plurality of mounting plates 1 close to the middle plate 9, a side of a plurality of lifting plates 12 away from the middle plate 9 is fixedly connected to two movable rods, and the two movable rods are symmetrically arranged, the movable rods pass through the inner cavity of the groove, one end of each two adjacent movable rods away from the middle plate 9 is fixedly connected to a sliding plate 14, a side of a plurality of mounting plates 1 away from the middle plate 9 is fixedly connected to an L-shaped limiting plate 13, the L-shaped limiting plate 13 is located between the two grooves, and a side of the L-shaped limiting plate 13 slides vertically. The front side plate 15 is fixedly connected to the sliding plate 14, and the front side plate 15 is fixedly connected to the top of the sliding plate 14 away from the middle plate 9. The inner cavity of the front side plate 15 is penetrated by a lifting rod 48, and the bottom end of the lifting rod 48 is inserted into the lateral side of the L-shaped limit plate 13. The outer side of the lifting rod 48 is sleeved with a movable spring 46, and the top of the movable spring 46 is fixedly connected to the front side plate 15, and the bottom end of the movable spring 46 is fixedly connected to the lateral side of the L-shaped limit plate 13. Two L-shaped flip plates 16 are hinged on the side of the sliding plate 14 away from the middle plate 9, and the two L-shaped flip plates 16 are symmetrically arranged. An insertion rod 17 is penetrated by the inner cavity of the L-shaped flip plate 16, and the end of the insertion rod 17 close to the middle plate 9 is inserted into the mounting plate 1, and the two L-shaped flip plates 16 A translation plate 19 is hinged near the bottom, a clamping plate 18 is fixedly connected to the side of the mounting plate 1 away from the middle plate 9 near the bottom, and the two translation plates 19 are slidably connected to the clamping plate 18, and the two translation plates 19 are fixedly connected to the side of the middle plate 9. A rubber block is provided on the corresponding side of the two clamping plates 6, and a reverse osmosis membrane 5 is bonded between the two rubber blocks. An L-shaped welding plate 2 is fixedly connected to the center of the bottom of the mounting plate 1, and a collection frame 4 is fixedly connected to the other side of the L-shaped welding plate 2. A detection mechanism 3 is fixedly connected to one side of the L-shaped welding plate 2. A PH sensor and a controller are arranged inside the detection mechanism 3, and the PH sensor is located in the inner cavity of the collection frame 4. A plurality of An L-shaped fixing plate 20, the other side of the L-shaped fixing plate 20 is fixedly connected to the adjacent lifting plate 12, a cross plate 10 is provided at the bottom of the median plate 9, and the corresponding sides of several mounting plates 1 are fixedly connected to the cross plate 10 near the bottom, an active cylinder 11 is fixedly connected to the top of the cross plate 10, and the power output shaft of the active cylinder 11 is fixedly connected to the bottom of the median plate 9, and two supporting plates 38 are fixedly connected to the tops of several mounting plates 1, and a bottom plate 37 is fixedly connected to the tops of several supporting plates 38, and a column 36 is fixedly connected to the center of the top of the bottom plate 37, and a water storage tank 8 is fixedly connected to the top of the column 36, and a water inlet pipe is arranged on the top of the water storage tank 8, and several test tubes 7 are plugged into the outside of the water storage tank 8, and a valve is arranged in the inner cavity of the water storage tank 8.

[0018] A plurality of storage boxes 26 are fixedly connected to the top of the bottom plate 37. The plurality of storage boxes 26 are arranged in a cross arrangement. A partition is provided in the middle of the inner cavity of the storage box 26. The side of the storage box 26 away from the middle plate 9 is plugged with a transmission pipe 23. A flushing pump 24 is installed on the side of the plurality of transmission pipes 23 away from the middle plate 9. A flushing pipe 25 is plugged on the other side of the flushing pump 24. The other end of the test tube 7 is fixedly connected to the top of the flushing pipe 25. The tops of the plurality of storage boxes 26 are fixedly connected with a connecting plate 27. The connecting plate 27 is on the side away from the middle plate 9. Two hinge blocks 28 are fixedly connected near the top, and a cross bar 29 is commonly provided between the two hinge blocks 28. A sleeve 42 is sleeved on the outside of the cross bar 29, and a linkage rod 47 is fixedly connected to the bottom of the sleeve 42. A servo motor 43 is installed on one side of the connecting plates 27 near the middle plate 9. A servo motor driver is arranged inside the servo motor 43, and the servo motor driver is connected to the controller. The power output shaft of the servo motor 43 passes through the connecting plate 27 and is fixedly connected to a rotating block 31. A rotating rod is provided in the inner cavity of the rotating block 31. The outer side of the linkage rod 47 is sleeved with a slider 33, the end of the rotating rod 30 close to the slider 33 is fixedly connected with an L-shaped movable block 32, the L-shaped movable block 32 is hinged on the slider 33, the outer side of the rotating rod 30 is sleeved with a spacing spring, the spacing spring is located between the rotating block 31 and the slider 33, the side of the slider 33 away from the middle plate 9 is fixedly connected with a fitting plate 34, the inner cavity of the storage box 26 is provided with two slide grooves, the slide grooves are slidably connected with an anti-slip plate 44, and the side of the anti-slip plate 44 close to the middle plate 9 is fixedly connected with a Z-shaped opening and closing plate 3 5. The left and right sides of the anti-slip plate 44 are fixedly connected with side plates 45 near the top. The inner cavity of the side plate 45 is penetrated by a vertical rod 22. The bottom end of the vertical rod 22 is plugged into the storage box 26. The Z-shaped opening and closing plate 35 is hinged with a swing block 40 on one side near the middle plate 9. The bottom of the swing block 40 is attached with a spring leaf 41, and the spring leaf 41 is fixedly connected to the Z-shaped opening and closing plate 35. The top of the swing block 40 is attached with an L-shaped positioning rod 39, and the L-shaped positioning rod 39 is fixedly connected to the Z-shaped opening and closing plate 35. The outer side of the vertical rod 22 is sleeved with a return spring 21.

[0019] A method for a reverse osmosis membrane circulation cleaning device comprises the following steps: S1: When the active cylinder 11 is started, the mid-position plate 9 can be driven to move upward through the power output shaft. When the mid-position plate 9 moves upward, it can drive several lifting plates 12 to move upward. When the lifting plates 12 move upward, they can drive the sliding plates 14 to move upward. When the sliding plates 14 move upward, they can drive two L-shaped flip plates 16 to flip around the center of the plug rod 17. When the L-shaped flip plates 16 flip, they can drive the translation plates 19 to move in opposite directions. When the translation plates 19 move in opposite directions, the reverse osmosis membrane 5 can be fixed and limited by the clamping plates 6; S2: When the valve is activated, the pre-treated water in the inner cavity of the water storage tank 8 can enter the flushing pipe 25 through the test pipe 7 and contact the reverse osmosis membrane 5. At this time, part of the pre-treated water can be accumulated in the inner cavity of the collection frame 4 and contact the PH sensor. The PH sensor can detect the PH value of the pollutant in real time and output a signal to the controller. When the controller receives the PH signal, it executes the judgment logic and outputs the PWM control instruction; S3: The servo motor driver performs forward and reverse rotation according to the PWM control instruction. When the servo motor 43 rotates forward, it can drive the rotating block 31 to rotate. When the rotating block 31 rotates forward, it can drive the L-shaped movable block 32 to rotate forward through the rotating rod 30. When the L-shaped movable block 32 rotates forward, it can drive the bonding plate 34 to move in a rectangular track. When the L-shaped movable block 32 moves upward, it can contact the bottom of the swing block 40 and simultaneously drive the swing block 40 to move upward and contact the L-shaped positioning rod 39, thereby driving the Z-shaped opening and closing plate 35 to move upward synchronously. S4: When the flushing pump 24 is started, the inner cavity of the storage box 26 can be pumped, so that the acidic cleaning agent and the alkaline cleaning agent are pumped into the inner cavity of the flushing pipe 25, so as to achieve corresponding cleaning according to the result of the pH value of the pollutant.

[0020] Working principle: when the active cylinder 11 is started, the median plate 9 can be driven to move upward through the power output shaft. When the median plate 9 moves upward, it can drive several lifting plates 12 to move upward. When the lifting plate 12 moves upward, it can drive the sliding plate 14 to move upward. When the sliding plate 14 moves upward, it can drive two L-shaped flip plates 16 to flip with the center of the plug rod 17 as the center. When the L-shaped flip plate 16 flips, it can drive the translation plate 19 to move in the opposite direction. When the translation plate 19 moves in the opposite direction, the reverse osmosis membrane 5 can be fixed and limited by the clamping plate 6. When the valve is started, the pretreated water in the inner cavity of the water storage tank 8 can enter the flushing pipe 25 through the test tube 7 and contact the reverse osmosis membrane 5. At this time, part of the pretreated water can be accumulated in the inner cavity of the collection frame 4 and contact with the PH sensor. The PH sensor can detect the PH value of the pollutant in real time and output the signal to the controller. When the controller receives the PH signal, it executes the judgment logic and outputs the PWM control instruction. The servo motor driver performs forward and reverse transmission according to the PWM control instruction. When the servo motor 43 rotates forward, it can drive the rotating block 31 to rotate. When the rotating block 31 rotates forward, the L-shaped movable block 32 can be driven to rotate forward through the rotating rod 30. When the L-shaped movable block 32 rotates forward, it can drive the bonding plate 34 to move in a rectangular trajectory. When the L-shaped movable block 32 moves upward, it can contact the bottom of the swing block 40, and at the same time drive the swing block 40 to move upward, and contact the L-shaped positioning rod 39, thereby driving the Z-shaped opening and closing plate 35 to move upward synchronously. When the flushing pump 24 is started, the inner cavity of the storage box 26 can be extracted, so that the acidic cleaning agent and the alkaline cleaning agent are drawn into the inner cavity of the flushing pipe 25, thereby realizing corresponding cleaning according to the results of the pH value of the pollutant.

Claims

1. A reverse osmosis membrane circulation cleaning device, comprising a mounting plate (1) arranged in a cross shape, characterized in that: A middle plate (9) is provided between the plurality of mounting plates (1), and two grooves are provided on the tops of the plurality of mounting plates (1), and the two grooves are symmetrically arranged on the left and right sides. A lifting plate (12) is provided on the side of the plurality of mounting plates (1) close to the middle plate (9), and two movable rods are fixedly connected on the side of the plurality of lifting plates (12) away from the middle plate (9), and the two movable rods are symmetrically arranged on the left and right sides. The movable rods penetrate the inner cavity of the groove, and the ends of each two adjacent movable rods away from the middle plate (9) are fixedly connected to a sliding plate (14), and the sides of the plurality of mounting plates (1) away from the middle plate (9) are fixedly connected to an L-shaped limiting plate (14). 3), the L-shaped limit plate (13) is located between the two grooves, a sliding plate (14) is slidably connected to one vertical side of the L-shaped limit plate (13), a front side plate (15) is fixedly connected to the side of the sliding plate (14) away from the middle plate (9) near the top, a lifting rod (48) is passed through the inner cavity of the front side plate (15), the bottom end of the lifting rod (48) is inserted into the lateral side of the L-shaped limit plate (13), and a movable spring (46) is sleeved on the outer side of the lifting rod (48), the top end of the movable spring (46) is fixedly connected to the front side plate (15), and the bottom end of the movable spring (46) is fixedly connected to the lateral side of the L-shaped limit plate (13).

2. A reverse osmosis membrane circulation cleaning device according to claim 1, characterized in that: Two L-shaped flip plates (16) are hingedly connected to one side of the sliding plate (14) away from the middle plate (9), and the two L-shaped flip plates (16) are symmetrically arranged on the left and right. An insertion rod (17) runs through the inner cavity of the L-shaped flip plate (16), and one end of the insertion rod (17) close to the middle plate (9) is inserted into the mounting plate (1). The two L-shaped flip plates (16) are hingedly connected to a translation plate (19) near the bottom. A clamping plate (18) is fixedly connected to the side of the mounting plate (1) away from the middle plate (9) near the bottom, and the two translation plates (19) are slidably connected to the clamping plate (18).

3. A reverse osmosis membrane circulation cleaning device according to claim 2, characterized in that: The two translation plates (19) are fixedly connected to a clamping plate (6) on one side away from the middle plate (9), and a rubber block is provided on the corresponding side of the two clamping plates (6). A reverse osmosis membrane (5) is bonded between the two rubber blocks. An L-shaped welding plate (2) is fixedly connected to the center of the bottom of the mounting plate (1), and a collection frame (4) is fixedly connected to the other side of the L-shaped welding plate (2).

4. A reverse osmosis membrane circulation cleaning device according to claim 3, characterized in that: A detection mechanism (3) is fixedly connected to one lateral side of the L-shaped welding plate (2), a pH sensor and a controller are arranged inside the detection mechanism (3), and the pH sensor is located in the inner cavity of the collection frame (4). A plurality of L-shaped fixing plates (20) are fixedly connected to the outer side of the middle plate (9), and the other side of the L-shaped fixing plates (20) are fixedly connected to the adjacent lifting plates (12). A cross plate (10) is provided at the bottom of the middle plate (9), and the corresponding sides of the plurality of mounting plates (1) are fixedly connected to the cross plate (10) near the bottom. An active cylinder (11) is fixedly connected to the top of the cross plate (10), and a power output shaft of the active cylinder (11) is fixedly connected to the bottom of the middle plate (9).

5. A reverse osmosis membrane circulation cleaning device according to claim 4, characterized in that: The tops of the plurality of mounting plates (1) are all fixedly connected to two support plates (38), the tops of the plurality of support plates (38) are commonly fixedly connected to a bottom plate (37), the center of the top of the bottom plate (37) is fixedly connected to a column (36), the top of the column (36) is fixedly connected to a water storage tank (8), the top of the water storage tank (8) is provided with a water inlet pipe, the outside of the water storage tank (8) is plugged with a plurality of test tubes (7), and the inner cavity of the water storage tank (8) is provided with a valve.

6. A reverse osmosis membrane circulation cleaning device according to claim 5, characterized in that: A plurality of material storage boxes (26) are fixedly connected to the top of the bottom plate (37), the plurality of material storage boxes (26) are arranged in a cross arrangement, a partition is provided in the middle of the inner cavity of the material storage box (26), a transmission pipe (23) is plugged into the side of the material storage box (26) away from the middle plate (9), a flushing pump (24) is installed on the side of the plurality of transmission pipes (23) away from the middle plate (9), a flushing pipe (25) is plugged into the other side of the flushing pump (24), and the other end of the test tube (7) is fixedly connected to the top of the flushing pipe (25).

7. A reverse osmosis membrane circulation cleaning device according to claim 6, characterized in that: A connecting plate (27) is fixedly connected to the top of the plurality of material storage boxes (26); two hinge blocks (28) are fixedly connected to the connecting plate (27) at a side away from the middle plate (9) near the top; a cross bar (29) is provided between the two hinge blocks (28); a sleeve (42) is sleeved on the outside of the cross bar (29); a connecting rod (47) is fixedly connected to the bottom of the sleeve (42); a servo motor (43) is installed on a side of the plurality of connecting plates (27) near the middle plate (9); a servo motor driver is provided inside the servo motor (43); and the servo motor driver is connected to a controller.

8. A reverse osmosis membrane circulation cleaning device according to claim 7, characterized in that: The power output shaft of the servo motor (43) passes through the connecting plate (27) and is fixedly connected to a rotating block (31). A rotating rod (30) is provided through the inner cavity of the rotating block (31). A slider (33) is sleeved on the outer side of the connecting rod (47). An end of the rotating rod (30) close to the slider (33) is fixedly connected to an L-shaped movable block (32). The L-shaped movable block (32) is hinged on the slider (33). A spacing spring is sleeved on the outer side of the rotating rod (30). The spacing spring is located between the rotating block (31) and the slider (33). A side of the slider (33) away from the middle plate (9) is fixedly connected to a bonding plate (34).

9. A reverse osmosis membrane circulation cleaning device according to claim 8, characterized in that: The material storage box (26) has two slide grooves in its inner cavity, and the slide grooves are slidably connected with an anti-slip plate (44). A Z-shaped opening and closing plate (35) is fixedly connected to the anti-slip plate (44) on one side close to the middle plate (9). Side plates (45) are fixedly connected to the left and right sides of the anti-slip plate (44) near the top. A vertical rod (22) runs through the inner cavity of the side plate (45). The bottom end of the vertical rod (22) is plugged into the material storage box (26). A swing block (40) is hingedly connected to one side of the Z-shaped opening and closing plate (35) close to the middle plate (9). A spring (41) is attached to the bottom of the swing block (40). The spring (41) is fixedly connected to the Z-shaped opening and closing plate (35). An L-shaped positioning rod (39) is attached to the top of the swing block (40). The L-shaped positioning rod (39) is fixedly connected to the Z-shaped opening and closing plate (35). A return spring (21) is sleeved on the outer side of the vertical rod (22).

10. A method for cleaning a reverse osmosis membrane circulation device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: When the active cylinder (11) is started, the middle plate (9) can be driven to move upwards through the power output shaft. When the middle plate (9) moves upwards, it can drive a plurality of lifting plates (12) to move upwards. When the lifting plates (12) move upwards, they can drive the sliding plates (14) to move upwards. When the sliding plates (14) move upwards, they can drive two L-shaped flip plates (16) to flip around the center of the plug rod (17). When the L-shaped flip plates (16) flip, they can drive the translation plates (19) to move in opposite directions. When the translation plates (19) move in opposite directions, the reverse osmosis membrane (5) can be fixed and limited by the clamping plates (6); S2: When the valve is activated, the pre-treated water in the inner cavity of the water storage tank (8) can enter the flushing pipe (25) through the test pipe (7) and contact the reverse osmosis membrane (5). At this time, part of the pre-treated water can be accumulated in the inner cavity of the collection frame (4) and contact the pH sensor. The pH sensor can detect the pH value of the pollutant in real time and output a signal to the controller. When the controller receives the pH signal, it executes the judgment logic and outputs a PWM control instruction; S3: The servo motor driver performs forward and reverse rotation according to the PWM control instruction. When the servo motor 43 rotates forward, it can drive the rotating block (31) to rotate. When the rotating block (31) rotates forward, it can drive the L-shaped movable block (32) to rotate forward through the rotating rod (30). When the L-shaped movable block (32) rotates forward, it can drive the bonding plate (34) to move in a rectangular track. When the L-shaped movable block (32) moves upward, it can contact the bottom of the swing block (40) and simultaneously drive the swing block (40) to move upward and contact the L-shaped positioning rod (39), thereby driving the Z-shaped opening and closing plate (35) to move upward synchronously; S4: When the flushing pump (24) is started, the inner cavity of the storage box (26) can be pumped, so that the acidic cleaning agent and the alkaline cleaning agent are pumped into the inner cavity of the flushing pipe (25), thereby achieving corresponding cleaning according to the result of the pH value of the pollutant.

Images