An integrated water treatment device

Abstract

The application relates to the technical field of sewage treatment, and particularly discloses an integrated water treatment device, which comprises a box body and, from left to right, an operation room, a reaction tank and an anoxic tank arranged in the box body in sequence, wherein the reaction tank is provided with a flat-plate membrane reactor; the flat-plate membrane reactor comprises a mounting frame, a membrane sheet mounted on the mounting frame, an integrated pipe communicated with the membrane sheet and an aeration pipe arranged below the membrane sheet; the membrane sheets are uniformly arranged along the front-rear direction; each membrane sheet is rotationally connected with the mounting frame; the top of each membrane sheet is provided with a push rod; and the box body is provided with a driving assembly I for driving the push rod to rotate the membrane sheet. The integrated water treatment device can optimize the motion track of the bubbles, so that the bubbles slide along the surface of the membrane sheets during the rising process, the contact time of the bubbles and the pollutants is prolonged, the stripping effect of the pollutants on the membrane sheets is improved, the scouring effect of the bubbles on the membrane sheets is enhanced, the bubbles are prevented from gathering in a local area, the dead corners of the scouring are reduced, and the overall cleaning efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to an integrated water treatment device. BACKGROUND

[0002] The integrated water treatment device usually uses a membrane bioreactor (MBR). The main components of a common membrane bioreactor include flat membranes, roll-type membranes, hollow membranes, etc., among which flat membranes are a major form. A flat membrane bioreactor mainly includes a support frame, a plurality of flat membrane elements installed on the support frame, and an aeration device installed at the bottom of the support frame. When working, the flat membrane bioreactor is hoisted into a biological reaction tank, and the flat membrane bioreactor is immersed in sewage. After filtration by the flat membrane elements, clean water is pumped into a clean water tank under the action of a suction pump. The aeration device is used for aeration to agitate the water body and accelerate oxygenation. At the same time, the generated bubbles quickly pass through the membrane surface, and the shear force generated by the hydraulic circulation scours the membrane surface, carrying away the sludge deposited on the membrane surface, effectively preventing membrane pollution.

[0003] A flat membrane assembly support disclosed in Chinese Patent No. CN107902751B includes a vertical column, a cross beam, and a longitudinal beam. The two ends of the cross beam and the longitudinal beam are respectively connected to a vertical column, forming a cuboid-shaped frame. The cross beam includes a first cross beam and a second cross beam arranged in sequence from bottom to top. The second cross beam is inwardly retracted relative to the first cross beam, and an inclined panel is arranged between the first cross beam and the second cross beam. The longitudinal beam includes a first longitudinal beam and a second longitudinal beam. The first longitudinal beam has the same height as the first cross beam, and the second longitudinal beam has the same height as the second cross beam. A vertical panel is arranged between the first longitudinal beam and the second longitudinal beam.

[0004] The above patent uses the area surrounded by the inclined panel and the vertical panel to guide the aeration of the tank bottom, converges the bubbles, and makes the bubbles more forcefully scour the flat membrane elements, reducing membrane pollution. However, in actual implementation, since the flat membrane elements are vertically installed on the support, the bubbles are limited by the membrane sheets during the rising process and can only move vertically upward along the membrane sheet surface. The movement path of the bubbles is relatively single, lacks transverse disturbance and diffusion, is prone to form an advantage channel with the smallest resistance, causes the phenomenon of bubble short circuit, and the bubbles are prone to gather into large bubbles during the rising process, quickly pass through the membrane assembly, cause insufficient scouring of the bubbles on the upper half of the membrane sheet, and cause pollutants to accumulate on the membrane surface.

[0005] Therefore, there is a need for an integrated water treatment device to solve the above problems in the art. SUMMARY

[0006] This invention provides an integrated water treatment device, which aims to solve the problem in related technologies where the membrane and air bubble flotation are in the same direction, which easily leads to short-circuiting and aggregation of air bubbles, resulting in short residence time and uneven distribution of air bubbles on the membrane, and poor flushing and cleaning effect on the membrane.

[0007] An integrated water treatment device of the present invention includes a housing and an operating room, a reaction tank, and an anoxic tank arranged sequentially from left to right within the housing. A flat-plate membrane reactor is arranged in the reaction tank. The flat-plate membrane reactor includes a mounting frame, membranes mounted on the mounting frame, an integrated pipe connecting the membranes, and an aeration pipe disposed below the membranes. The membranes are evenly spaced along the front-to-back direction, and each membrane is rotatably connected to the mounting frame. A lever is provided on the top of each membrane. A drive assembly is provided in the housing to drive the levers to rotate the membranes.

[0008] Initially, the membrane is vertical, which ensures good filtration in the early stages of wastewater treatment. However, as treatment time increases, the amount of contaminants adhering to the membrane gradually increases, leading to a decrease in water flux. This invention uses a drive lever to drive the membrane to swing back and forth in the front-to-back direction, optimizing the movement trajectory of air bubbles. As the bubbles rise, they slide along the membrane surface, prolonging the contact time between the bubbles and contaminants and improving the removal of contaminants from the membrane. Moreover, the tilted membrane causes the direction of the bubbles' scouring of the membrane surface to no longer be perpendicular to the membrane surface, but rather to form an oblique shear force, making it easier to remove contaminants adhering to the membrane surface and enhancing the scouring effect of the bubbles on the membrane. In addition, the tilted setting of the membrane can change the rising path of the bubbles, forcing the bubbles to diffuse laterally between the membranes, improving the overall gas-liquid contact efficiency, making the bubbles cover the membrane surface more evenly, avoiding the accumulation of bubbles in local areas, reducing scouring dead zones, and improving the overall cleaning efficiency.

[0009] Preferably, the top of the diaphragm has a water outlet cavity communicating with the integrated tube. A piston is slidably connected in the water outlet cavity in the left-right direction. The piston is connected to the right side wall of the water outlet cavity by a spring. A conical section is provided near the left end of the water outlet cavity. The spring compresses the piston against the conical section. The piston is connected to the lever by a connecting rod. The diaphragm has a clearance groove for the lever to move in the left-right direction. When the lever moves to a preset position following the piston, the drive assembly drives the lever to rotate the diaphragm.

[0010] By utilizing the connection design between the piston and the lever, and the sliding of the piston within the outlet chamber caused by changes in negative pressure, the automatic correlation between membrane oscillation and the amount of contaminants accumulated on the membrane is achieved. When the amount of contaminants on the membrane increases, the negative pressure increases, and the piston drives the lever to automatically move to a preset position, thereby triggering the oscillation of the membrane. This eliminates the need for manual intervention and improves the automation level of the system. Furthermore, by using changes in negative pressure within the membrane to directly control the position of the lever, and thus control the oscillation of the membrane, this control method is precise and direct, accurately reflecting the accumulation of contaminants on the membrane and ensuring that the membrane oscillates at the appropriate time to maintain its filtration efficiency.

[0011] Preferably, the drive assembly includes an automatic telescopic cylinder fixedly connected to the housing and a push plate connected to the drive end of the automatic telescopic cylinder. The push plate has push grooves spaced apart along the front-back direction, corresponding to each of the levers. A retractable part is provided near the right end of each push groove. The automatic telescopic cylinder drives the push plate to reciprocate along the front-back direction. When the lever moves to the retractable part, the push plate pushes the lever, causing the diaphragm to swing back and forth.

[0012] The drive assembly adopts a combination structure of an automatic telescopic cylinder and a push plate. This design is clear, easy to manufacture and assemble. The push plate has push slots corresponding to each lever, and a contraction section is set near the right end of the push slot. This allows the lever to be precisely pushed by the push plate when it moves to a specific position (i.e., the contraction section). This design ensures that the lever is pushed at the correct time and position, thereby driving the diaphragm to swing back and forth accurately. Other levers that are not moved to the contraction section are not driven by the push plate, and their corresponding diaphragms continue to remain in a vertical state.

[0013] Preferably, an automatic telescopic cylinder two is fixedly installed on the housing. The driving end of the automatic telescopic cylinder two is fixedly connected to a push plate two. The push plate two is slidably connected to the push plate one in the front-back direction. The driving end of the automatic telescopic cylinder one is fixedly connected to a mounting plate. The push plate one is slidably connected to the mounting plate in the left-right direction. When the automatic telescopic cylinder two drives the push plate two to move the push plate one to the right, the push plate one pushes the lever through the push groove, causing the piston to move to the right.

[0014] In the initial stage of sewage treatment, the automatic telescopic cylinder 2 drives the push plate 2 to move the push plate 1 to the right. The push plate 1 pushes the piston to the right through the push groove and push rod, connecting the water outlet chamber and the inside of the diaphragm, reducing the suction load of the suction pump, so that the suction pump can be used to draw clean water, ensuring the clean water output of the water treatment device.

[0015] Preferably, a flow guiding assembly is provided between two adjacent membranes. The flow guiding assembly includes a flow guiding frame connected to the mounting frame and a flow guiding plate rotatably connected to the flow guiding frame. A second driving assembly for driving the flow guiding plate to rotate is provided on the housing.

[0016] By adjusting the angle of the guide plate through the drive component two, the water flow and air bubbles impact the membrane surface in a more suitable direction and force, which can more effectively flush away contaminants attached to the membrane, enhance the membrane's self-cleaning ability, greatly reduce the risk of membrane clogging, help maintain the continuous and stable operation of the water treatment device, reduce downtime and maintenance time caused by membrane clogging, extend the membrane's service life, and improve the economy and reliability of the entire water treatment device.

[0017] Preferably, the flow guide frame includes two flow guide rods symmetrically arranged on the left and right sides. The flow guide rods are fixedly connected to the mounting frame. The two flow guide rods are slidably connected to the mounting rods on their respective sides facing each other. Multiple flow guide plates are evenly spaced vertically, and the multiple flow guide plates are rotatably connected to the mounting rods. The housing is provided with a driving component that drives the mounting rods to move vertically.

[0018] When there are many contaminants on the membrane surface and the filtration flux drops significantly, cleaning the contaminants solely through bubbles and water flow is too slow and affects the continuous use of the water treatment equipment. By driving the guide plate through the second drive component to rotate until the edge of the guide plate gently contacts the outer surface of the membrane, and then controlling the third automatic telescopic cylinder to drive the pressing plate to press down on the mounting rod, the mounting rod drives the guide plate to move downward, realizing the direct scraping of contaminants attached to the membrane by the guide plate, which significantly improves the cleaning efficiency.

[0019] Preferably, the driving component includes an automatic telescopic cylinder three fixedly installed on the housing, a pressing plate connected to the driving end of the automatic telescopic cylinder three, and a spring two connected between the bottom of the mounting rod and the guide rod. The automatic telescopic cylinder three presses the mounting rod downward relative to the guide rod through the pressing plate, and the spring two is used to drive the mounting rod to move upward and reset.

[0020] The combination of the automatic telescopic cylinder and the pressing plate enables precise control of the downward movement of the mounting rod and the guide plate. This automated operation reduces manual intervention and improves the accuracy and efficiency of the operation.

[0021] Preferably, the second driving component includes a movable frame slidably connected vertically within the mounting rod and a push rod disposed at the bottom of the pressing plate. The movable frame has staggered toothed segments on its front and rear sides. A gear is fixedly connected to the shaft on which the guide plate is rotatably connected to the mounting rod. The push rod is correspondingly disposed to each of the guide components. The push rod passes vertically through the mounting rod and is fixedly connected to the movable frame. The third automatic telescopic cylinder drives the push rod to push the movable frame via the pressing plate. The toothed segments within the movable frame drive the gear to rotate the guide plate.

[0022] The design of drive component two makes full use of the space inside the mounting rod. Through the combination of the movable frame and the toothed segment, it realizes the driving of multiple guide plates in a limited space. This compact structural design helps to save equipment space, making the entire water treatment device more compact and efficient. The push rod is set to correspond to each guide component, which means that the pressing plate can press all the push rods at the same time to drive the corresponding multiple guide plates to rotate, ensuring the consistency of the action of each guide plate. This synchronous driving method helps to ensure the uniform distribution of water flow and air bubbles on the membrane surface, thereby improving the cleaning effect.

[0023] Preferably, a spring three is connected between the portion of the push rod located at the top of the mounting rod and the mounting rod, and the spring three is used to drive the movable frame to move upward and reset.

[0024] Preferably, the drive end of the automatic telescopic cylinder three is fixedly connected to an inverted U-shaped block, the pressing plate is located inside the inverted U-shaped block, and the top of the push rod is fixedly connected to the pressing plate.

[0025] The beneficial effects of the present invention are as follows: The present invention drives the membrane to swing back and forth in the front and back direction by driving the driving component - driving lever, which can optimize the movement trajectory of the bubble. During the rising process, the bubble will slide along the membrane surface, prolonging the contact time between the bubble and the contaminant and improving the peeling effect of the contaminant on the membrane.

[0026] Moreover, the tilted membrane causes the direction of the bubbles to scour the membrane surface to no longer be perpendicular to the membrane surface, but to form an oblique shear force, which makes it easier to peel off the contaminants attached to the membrane surface and enhances the scouring effect of the bubbles on the membrane.

[0027] In addition, the tilted setting of the membrane can change the rising path of the bubbles, forcing the bubbles to diffuse laterally between the membranes, improving the overall gas-liquid contact efficiency, making the bubbles cover the membrane surface more evenly, avoiding the accumulation of bubbles in local areas, reducing scouring dead zones, and improving the overall cleaning efficiency. Attached Figure Description

[0028] Figure 1 This is a cross-sectional view of an integrated water treatment device according to the present invention.

[0029] Figure 2 This is a cross-sectional view of the flat-sheet membrane reactor of an integrated water treatment device according to the present invention from a first-view perspective.

[0030] Figure 3 This is a cross-sectional view of the flat-sheet membrane reactor of an integrated water treatment device according to the present invention from a second perspective.

[0031] Figure 4 This is a schematic diagram of the membrane structure of an integrated water treatment device according to the present invention.

[0032] Figure 5 This is a cross-sectional view of the membrane of an integrated water treatment device according to the present invention.

[0033] Figure 6 This is a schematic diagram of a drive component of an integrated water treatment device according to the present invention.

[0034] Figure 7 This is a schematic diagram of the flow guiding component of an integrated water treatment device according to the present invention.

[0035] Figure 8 This is an assembly diagram of the mounting rod and guide rod of an integrated water treatment device according to the present invention.

[0036] Figure 9 This is a schematic diagram of the second drive component of an integrated water treatment device according to the present invention.

[0037] Figure label:

[0038] 1. Box body; 11. Automatic telescopic cylinder one; 111. Mounting plate; 112. T-slot; 12. Push plate one; 121. Push groove; 122. Retraction section; 13. Automatic telescopic cylinder two; 14. Push plate two; 15. Automatic telescopic cylinder three; 151. Inverted U-shaped block; 16. Pressing plate; 2. Operating room; 3. Reaction tank; 4. Anoxic tank; 5. Mounting frame; 51. Mounting groove; 6. Membrane; 61. Mounting column; 62. Lever; 63. Water outlet chamber; 631. Conical section; 64. Piston; 641. Connecting rod; 65. Spring 1; 66. Clearance groove; 7. Integrated pipe; 8. Aeration pipe; 9. Guide plate; 90. Gear; 91. Guide rod; 92. Mounting rod; 93. Spring 2; 94. Movable frame; 941. Gear section; 95. Push rod; 96. Spring 3; 10. Suction pump. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] like Figures 1 to 9As shown, an integrated water treatment device of the present invention includes a housing 1 and, from left to right, an operating room 2, a reaction tank 3, and an anoxic tank 4, arranged sequentially within the housing 1. A flat-plate membrane reactor is installed in the reaction tank 3. The flat-plate membrane reactor includes a mounting frame 5, a membrane 6 mounted on the mounting frame 5, an integrated pipe 7 connecting the membrane 6, and an aeration pipe 8 located below the membrane 6. The operating room 2 is equipped with an inlet pipe (not shown), an outlet pipe (not shown), and a sludge discharge pipe (not shown). Wastewater enters the anoxic tank 4 through the inlet pipe for pretreatment. The pretreated water enters the reaction tank 3. After filtration by the flat-plate membrane reactor, the wastewater becomes clear water. A suction pump 10 draws the clear water into the integrated pipe 7 and discharges it through the outlet pipe. A sludge pump (not shown) is installed inside the housing 1. The sludge pump draws sludge from the bottom of the reaction tank 3 into the sludge discharge pipe.

[0041] like Figure 2 and Figure 4 As shown, the membrane sheets 6 of the flat-plate membrane reactor are evenly spaced along the front-to-back direction. Installation grooves 51 are symmetrically provided on the left and right side walls of the mounting frame 5. Installation columns 61 extend from the left and right sides of each membrane sheet 6. Each membrane sheet 6 is installed in the installation groove 51 via the installation columns 61 and is rotatably connected to the installation groove 51. A lever 62 is provided at the top of each membrane sheet 6. A drive assembly 1 is provided inside the housing 1 to drive the lever 62 and rotate the membrane sheet 6.

[0042] Initially, membrane 6 is in a vertical position, which ensures good filtration in the early stages of wastewater treatment. However, as treatment time increases, the amount of pollutants attached to membrane 6 gradually increases, leading to a decrease in water flux. At this point, the drive lever 62 of the drive component drives membrane 6 to swing back and forth in the front-to-back direction, which optimizes the movement trajectory of air bubbles. As the bubbles rise, they slide along the surface of membrane 6, prolonging the contact time between the bubbles and pollutants and improving the removal of pollutants from membrane 6. Moreover, the tilted membrane 6 causes the direction of air bubble scouring of the membrane surface to no longer be perpendicular to the membrane surface, but to form an oblique shear force, making it easier to remove pollutants attached to the surface of membrane 6 and enhancing the scouring effect of air bubbles on membrane 6. In addition, the tilted setting of membrane 6 can change the rising path of air bubbles, forcing air bubbles to diffuse laterally between membranes, improving the overall gas-liquid contact efficiency, making air bubbles cover the surface of membrane 6 more evenly, avoiding the accumulation of air bubbles in local areas, reducing scouring dead zones, and improving the overall cleaning efficiency.

[0043] like Figure 2 and Figure 5As shown, the top of the diaphragm 6 has an outlet chamber 63 that communicates with the integrated pipe 7. A piston 64 is slidably connected to the outlet chamber 63 in the left-right direction. The piston 64 is connected to the right side wall of the outlet chamber 63 via a spring 65. A conical section 631 is provided near the left end of the outlet chamber 63, and the diameter of the conical section 631 gradually decreases from right to left. The spring 65 compresses the piston 64 against the left end of the conical section 631, and the piston 64 blocks the outlet chamber 63, thus isolating the outlet chamber 63 from the interior of the diaphragm 6. The piston 64 is connected to the lever 62 via a connecting rod 641. The diaphragm 6 has a clearance groove 66 for the lever 62 to move in the left-right direction. When the suction pump 10 draws in clean water, it pulls the piston 64 to the right to compress the spring 65, connecting the outlet chamber 63 to the interior of the diaphragm 6, allowing the diaphragm 6 to filter wastewater normally.

[0044] like Figure 2 and Figure 6 As shown, the drive assembly includes an automatic telescopic cylinder 11 fixedly connected to the housing 1 and a push plate 12 connected to the drive end of the automatic telescopic cylinder 11. The push plate 12 has push grooves 121 spaced apart along the front-back direction, corresponding to each lever 62. A retractable portion 122 is provided near the right end of each push groove 121. The automatic telescopic cylinder 11 drives the push plate 12 to reciprocate along the front-back direction. When the lever 62 moves to the retractable portion 122, the push plate 12 pushes the lever 62, causing the diaphragm 6 to swing back and forth. As an example, the automatic telescopic cylinder 11 is an electric telescopic cylinder.

[0045] An automatic telescopic cylinder 13 is fixedly installed on the housing 1. A push plate 14 is fixedly connected to the drive end of the automatic telescopic cylinder 13, and the push plate 14 is slidably connected to the push plate 12 in the front-back direction. A mounting plate 111 is fixedly connected to the drive end of the automatic telescopic cylinder 11. A T-slot 112 extending in the left-right direction is provided on the mounting plate 111, and the push plate 12 is slidably connected to the T-slot 112 in the left-right direction. As an example, the automatic telescopic cylinder 13 is an electric telescopic cylinder.

[0046] like Figure 2 , Figure 5 and Figure 6As shown, in the initial stage of wastewater treatment, the automatic telescopic cylinder 213 drives the push plate 214 to move the push plate 12 to the right. The push plate 12 pushes the lever 62 through the push groove 121, which in turn drives the piston 64 to move to the right, connecting the outlet chamber 63 and the inside of the membrane 6. This reduces the suction load on the suction pump 10, allowing the suction pump 10 to be used entirely to pump clean water, ensuring the clean water output of the water treatment device. After a period of operation, more and more pollutants will adhere to the membrane 6. The automatic telescopic cylinder 213 will then drive the push plate 214 to move the push plate 12 to the left to reset. After the lever 62 and piston 64 lose the push of the push plate 12, the rebound force of the spring 65 between the piston 64 and the outlet chamber 63 will drive the piston 64 to move to the left a certain distance. However, due to the suction force of the suction pump 10, the piston 64 will not be completely squeezed and blocked by the spring 65, and the outlet chamber 63 will still be connected to the inside of the membrane 6.

[0047] As more and more contaminants accumulate on the membrane 6, the negative pressure inside the membrane 6 will increase, and the suction force of the suction pump 10 on the piston 64 will gradually increase. The piston 64 will drive the lever 62 to move gradually to the right. When the lever 62 moves to the contraction part 122 of the push groove 121, the automatic telescopic cylinder 11 drives the mounting plate 111 to move the push plate 12 in the front-back direction. The contraction part 122 of the push groove 121 pushes the lever 62, causing the membrane 6 to swing back and forth, thereby improving the flushing and cleaning efficiency of the bubbles on the contaminants attached to the membrane 6, increasing the filtration flux of the membrane 6, and extending the service life of the membrane 6.

[0048] like Figure 3 and Figure 7 As shown, to further reduce contaminants adhering to the membrane 6, in this embodiment, a flow guiding assembly is provided between two adjacent membranes 6. The flow guiding assembly includes a flow guiding frame fixedly connected to the mounting frame 5 and a flow guiding plate 9 rotatably connected to the flow guiding frame. A second drive assembly is provided on the housing 1 to drive the flow guiding plate 9 to rotate. By adjusting the angle of the flow guiding plate 9 through the second drive assembly, the water flow and air bubbles impact the surface of the membrane 6 in a more suitable direction and force, which can more effectively flush off the contaminants adhering to the membrane 6, enhance the self-cleaning ability of the membrane 6, reduce the risk of membrane 6 clogging, and extend the service life of the membrane 6.

[0049] The flow guide frame includes two symmetrically arranged flow guide rods 91, which are fixedly connected to the mounting frame 5. Mounting rods 92 are slidably connected to the two flow guide rods 91 on opposite sides facing each other. Multiple flow guide plates 9 are evenly spaced vertically, and each flow guide plate 9 is rotatably connected to the mounting rods 92. A driving component is provided on the housing 1 to drive the mounting rods 92 vertically.

[0050] See Figure 3 , Figure 7 and Figure 8The driving components include an automatic telescopic cylinder 15 fixedly mounted on the housing 1, a pressing plate 16 connected to the driving end of the automatic telescopic cylinder 15, and a spring 93 connected between the bottom of the mounting rod 92 and the guide rod 91. The automatic telescopic cylinder 15 presses the mounting rod 92 downward relative to the guide rod 91 via the pressing plate 16, and the spring 93 drives the mounting rod 92 upward to return to its original position. As an example, the automatic telescopic cylinder 15 is an electric telescopic cylinder.

[0051] When there are many contaminants on the surface of the membrane 6 and the filtration flux drops significantly, cleaning the contaminants by air bubbles and water flow alone is too slow and affects the continuous use of the water treatment equipment. Drive component two drives the guide plate 9 to rotate until the edge of the guide plate 9 gently fits against the outer surface of the membrane 6. Then, control the automatic telescopic cylinder three 15 to drive the pressing plate 16 to press down the mounting rod 92. The mounting rod 92 drives the guide plate 9 to move downward, so that the guide plate 9 scrapes the contaminants attached to the membrane 6 downward.

[0052] like Figure 3 and Figure 9 As shown, the second drive assembly includes a movable frame 94 slidably connected vertically within the mounting rod 92 and a push rod 95 fixedly connected to the bottom of the pressing plate 16. The movable frame 94 has staggered toothed segments 941 arranged vertically on its front and rear sides. A gear 90 is fixedly connected to the shaft on which the guide plate 9 is rotatably connected to the mounting rod 92. The push rod 95 is correspondingly arranged with each guide assembly, penetrating vertically through the mounting rod 92 and fixedly connected to the movable frame 94. A spring 96 connects the portion of the push rod 95 at the top of the mounting rod 92 to the mounting rod 92. When the push rod 95 is not subjected to external force, the spring 96 causes the push rod 95 to move the movable frame 94 to the top of the mounting rod 92. The elastic coefficient of the spring 96 is less than that of the spring 93.

[0053] An inverted U-shaped block 151 is fixedly connected to the drive end of the automatic telescopic cylinder 15. The pressing plate 16 is located inside the inverted U-shaped block 151. When the automatic telescopic cylinder 15 drives the pressing plate 16 through the inverted U-shaped block 151 to move the push rod 95 downward, the push rod 95 compresses the spring 96 to retract and pushes the movable frame 94 downward relative to the mounting rod 92. The toothed segment 941 inside the movable frame 94 contacts the gear 90 on the guide plate 9 and drives the gear 90 to rotate the guide plate 9. When the movable frame 94 abuts against the bottom of the mounting rod 92, the movable frame 94 drives the mounting rod 92 to move downward, the mounting rod 92 drives the guide plate 9 to move downward, and the mounting rod 92 compresses the spring 93 to retract.

[0054] The specific working principle of the integrated water treatment device of the present invention is as follows: sewage is pumped from the inlet pipe into the anoxic tank 4 for pretreatment. The pretreated water enters the reaction tank 3 for filtration. In the initial state, the membrane 6 is in a vertical state. The automatic telescopic cylinder 2 13 drives the push plate 2 14 to move the push plate 1 12 to the right. The push plate 1 12 pushes the piston 64 to the right through the push groove 121 and the push rod 62 to connect the outlet chamber 63 and the inside of the membrane 6.

[0055] After the set running time, the control automatic telescopic cylinder 2 13 drives the push plate 2 14 to move the push plate 1 12 to the left to reset. After the lever 62 and piston 64 lose the push of the push plate 1 12, the rebound force of the spring 1 65 between piston 64 and water outlet chamber 63 will drive piston 64 to move to the left a certain distance. At this time, the lever 62 is located in the push groove 121 and on the left side of the contraction part 122.

[0056] As more and more contaminants accumulate on membrane 6, the negative pressure inside membrane 6 will increase, and the suction force of the suction pump 10 on piston 64 will gradually increase. Piston 64 will drive lever 62 to move gradually to the right, controlling the automatic telescopic cylinder 11 to drive mounting plate 111 to drive push plate 12 to move back and forth in the front and back direction. Lever 62 located on the left side of the contraction section 122 will not be interfered with by the wall of push groove 121. At this time, the filtration flux of membrane 6 corresponding to lever 62 is still within the normal range, while the filtration flux of membrane 6 corresponding to lever 62 entering the contraction section 122 is already below the normal range. Lever 62 will drive the corresponding membrane 6 to swing back and forth under the push of the wall of mounting groove 51, enhancing the flushing and cleaning of contaminants on membrane 6 by air bubbles.

[0057] When the filtration flux of membrane 6 is lower than the preset minimum value, membrane 6 is restored to a vertical position. The automatic telescopic cylinder 15 drives the pressing plate 16 to move the push rod 95 downward. The push rod 95 compresses the spring 96 and pushes the movable frame 94 downward relative to the mounting rod 92. The toothed segment 941 in the movable frame 94 contacts the gear 90 on the guide plate 9 and drives the gear 90 to rotate the guide plate 9. When the movable frame 94 abuts against the bottom of the mounting rod 92, the guide plate 9 gently adheres to the outer surface of membrane 6. As the pressing plate 16 continues to press down, the movable frame 94 drives the mounting rod 92 to move downward, and the mounting rod 92 drives the guide plate 9 to move downward, so that the guide plate 9 scrapes away the contaminants on the surface of membrane 6.

[0058] It is understandable that although the drive assembly 1 described in the above embodiments includes an automatic telescopic cylinder 11 and a push plate 12, and the push plate 12 has push grooves 121 corresponding to each lever 62, and the lever 62 on the diaphragm 6 is driven to swing back and forth through the contraction part 122 of the push groove 121, this is not the only way to drive the diaphragm 6 to rotate and swing back and forth. For example, in other embodiments, the drive assembly 1 can also be configured to include an electric telescopic cylinder and a drive rack fixedly installed on the drive section of the electric telescopic cylinder. Each diaphragm is rotatably connected to the mounting frame and a drive gear is fixedly installed on the shaft. The drive rack extends in the front-back direction and meshes with the drive gear on each diaphragm. The electric telescopic cylinder drives the drive rack to move back and forth, so that the drive rack drives the diaphragm to swing back and forth through the drive gear.

[0059] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An integrated water treatment device, comprising a housing and, from left to right, an operating room, a reaction tank, and an anoxic tank arranged within the housing, wherein a flat-plate membrane reactor is installed in the reaction tank, characterized in that, The flat-plate membrane reactor includes a mounting frame, membranes mounted on the mounting frame, an integrated tube connecting the membranes, and an aeration tube located below the membranes. The membranes are evenly spaced along the front-to-back direction, and each membrane is rotatably connected to the mounting frame. Each membrane is equipped with a lever at its top, and a drive assembly is installed inside the housing to drive the levers to reciprocate the membranes along the front-to-back direction. A flow guiding assembly is provided between two adjacent diaphragms. The flow guiding assembly includes a flow guiding frame connected to the mounting frame and a flow guiding plate rotatably connected to the flow guiding frame. A second drive assembly is provided on the housing to drive the flow guiding plate to rotate. The flow guide frame includes two symmetrically arranged flow guide rods, which are fixedly connected to the mounting frame. Mounting rods are slidably connected to each of the two flow guide rods on one side facing each other. Multiple flow guide plates are evenly spaced vertically, and each flow guide plate is rotatably connected to a mounting rod. A driving component is provided on the housing to drive the mounting rods vertically. The driving component includes an automatic telescopic cylinder three fixedly mounted on the housing, a pressing plate connected to the driving end of the automatic telescopic cylinder three, and a spring two connected between the bottom of the mounting rod and the flow guide rod. The second drive assembly includes a movable frame that slides vertically within the mounting rod and a push rod that is fixedly connected to the bottom of the pressing plate. The movable frame has staggered toothed segments on its front and rear sides. A gear is fixedly connected to the shaft on which the guide plate is rotatably connected to the mounting rod. The push rod is correspondingly arranged with each guide assembly. The push rod passes vertically through the mounting rod and is fixedly connected to the movable frame. The push rod pushes the movable frame downward relative to the mounting rod. When the movable frame abuts against the bottom of the mounting rod, the guide plate gently adheres to the outer surface of the diaphragm. The movable frame can drive the mounting rod to move downward, and the mounting rod drives the guide plate to move downward.

2. The integrated water treatment device according to claim 1, characterized in that, The top of the diaphragm has a water outlet cavity communicating with the integrated tube. A piston is slidably connected in the water outlet cavity in the left-right direction. The piston is connected to the right side wall of the water outlet cavity by a spring. A conical section is provided near the left end of the water outlet cavity. The spring compresses the piston against the conical section. The piston is connected to the lever by a connecting rod. The diaphragm has a clearance groove for the lever to move in the left-right direction. When the lever moves to a preset position with the piston, the drive assembly drives the lever to rotate the diaphragm.

3. The integrated water treatment device according to claim 2, characterized in that, The drive assembly includes an automatic telescopic cylinder fixedly connected to the housing and a push plate connected to the drive end of the automatic telescopic cylinder. The push plate has push grooves spaced apart along the front-back direction, corresponding to each lever. A retractable part is provided near the right end of each push groove. The automatic telescopic cylinder drives the push plate to reciprocate along the front-back direction. When the lever moves to the retractable part, the push plate pushes the lever, causing the diaphragm to swing back and forth.

4. The integrated water treatment device according to claim 3, characterized in that, An automatic telescopic cylinder two is fixedly installed on the housing. A push plate two is fixedly connected to the drive end of the automatic telescopic cylinder two. The push plate two is slidably connected to the push plate one in the front-back direction. An installation plate is fixedly connected to the drive end of the automatic telescopic cylinder one. The push plate one is slidably connected to the installation plate in the left-right direction. When the automatic telescopic cylinder two drives the push plate two to move the push plate one to the right, the push plate one pushes the lever through the push groove, causing the piston to move to the right.

5. The integrated water treatment device according to claim 1, characterized in that, The automatic telescopic cylinder three presses the mounting rod downward relative to the guide rod via the pressing plate, and the spring two drives the mounting rod to move upward and reset.

6. The integrated water treatment device according to claim 5, characterized in that, The automatic telescopic cylinder three drives the push rod to push the movable frame through the pressing plate, and the toothed segment in the movable frame drives the gear to rotate the guide plate.

7. The integrated water treatment device according to claim 6, characterized in that, A spring is connected between the portion of the push rod located at the top of the mounting rod and the mounting rod. The spring is used to drive the movable frame to move upward and reset.

8. The integrated water treatment device according to claim 7, characterized in that, The drive end of the automatic telescopic cylinder three is fixedly connected to an inverted U-shaped block, and the pressing plate is located inside the inverted U-shaped block.

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