Modular intelligent full-automatic backwashing filter tank

Abstract

The application discloses a modular intelligent full-automatic backwashing filter tank, comprising: a plurality of filter tank modules; a water production pipeline arranged above the filter filler area, the water production pipeline is sequentially provided with a water production water inlet, an exhaust port and a water production water outlet along the water flow direction; a plugging assembly arranged in a vertical water production pipeline between the water production water inlet and the exhaust port, the plugging assembly is sequentially provided with a first stopper, a plugging piece and a second stopper along the water flow direction; and an external backwashing ventilation assembly. Through the ingenious design of the plugging assembly, the different forces borne by the plugging piece during backwashing are utilized, the plugging assembly is used to replace the valve to realize the control effect, and the external backwashing ventilation assembly is arranged to perform regular backwashing on the filter filler area in the filter tank module.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sewage treatment. More particularly, the present application relates to a modular intelligent full-automatic backwashing filter. BACKGROUND

[0002] The filter for sewage treatment generally has a backwashing function. In the control of the backwashing process, valve control or gravity valveless control is mainly used. The valve control backwashing has high cost, and the valve is prone to switching failure, leakage, loosening, deterioration, blockage and other problems, which requires regular inspection and maintenance. Each time of failure and maintenance will affect the production of the entire water plant, and is not suitable for small and dispersed filtering devices. The Chinese patent "Water filtration device using water level difference for backwashing and backwashing method thereof, CN102327707B" controls backwashing by the cooperation of multiple electric butterfly valves and electric ball valves, which increases the equipment cost and failure rate.

[0003] The gravity valveless sewage treatment filter has a reduced probability of failure to a certain extent and reduces the cost of sewage treatment, but can only rely on self-produced water for cleaning, and the cleaning effect is not thorough, which directly affects the quality of filtered water, and there is no way to control the backwashing time. The Chinese patent "Gravity type device intelligent control backwashing sewage treatment system, CN107935273A" backwashes through the setting of a siphon rising pipe and a siphon descending pipe. Although the device has low cost and is easy to operate, the backwashing force is too small by relying on the device itself to produce water for backwashing, and the device controls the siphon process by setting an electric valve, which does not achieve the effect of completely automatic control of backwashing. SUMMARY

[0004] The present application provides a modular intelligent full-automatic backwashing filter. Multiple filter modules are arranged in the backwashing filter. A blocking assembly is arranged in the filter module. An external backwashing ventilation assembly is arranged to realize valveless and timed backwashing.

[0005] In order to achieve these objects and other advantages of the present application, a modular intelligent full-automatic backwashing filter is provided, comprising:

[0006] Multiple filter modules, a sewage inlet is arranged at the bottom of the filter module, a backwashing drainage port is arranged at the upper part of the filter module, and a filter filler area is arranged in the filter module;

[0007] A water production pipeline is arranged above the filter filler area. The water production pipeline is sequentially provided with a water production inlet, an exhaust port and a water production outlet along the water flow direction. The water production inlet forms a filtered water inlet part of the filter module. The height of the water production inlet is not lower than the height of the water production outlet.

[0008] A blocking assembly is arranged in a vertical water production pipeline between the water production inlet and the exhaust port, and the blocking assembly is sequentially provided with a first stopper, a blocking member and a second stopper along the direction of filtered water flow, the blocking member is movably arranged between the first stopper and the second stopper, the density of the blocking member is greater than the density of water, and the cross-sectional size of the blocking member is arranged to upwardly close the second stopper and downwardly close the first stopper.

[0009] An external backwashing ventilation assembly is arranged outside the filter tank module, and includes a fan, a relay, a first air inlet pipeline and a second air inlet pipeline, the fan is in communication with the first air inlet pipeline and the second air inlet pipeline, the first air inlet pipeline is in communication with the water production pipeline between the first stopper and the blocking member, the second air inlet pipeline extends into the filter tank module below the filter filling area, air outlets are uniformly arranged above the second air inlet pipeline along the pipeline length direction, and the relay is electrically connected with the fan.

[0010] Preferably, a plurality of filter tank modules are sequentially connected to form a group of filter tank modules, the group of filter tank modules is provided with parallel backwashing drainage mother pipelines and water production mother pipelines, a plurality of backwashing drainage ports of the group of filter tank modules extend towards the same side and are in communication with the backwashing drainage mother pipelines, a plurality of water production outlet ports of the group of filter tank modules extend towards the same side and are in communication with the water production mother pipelines, and a lower part of the group of filter tank modules is provided with a distribution area, the distribution area includes a total sewage inlet and a plurality of independent distribution modules, a lower part of one filter tank module corresponds to one distribution module, and an outlet of one distribution module is in communication with a sewage inlet of one filter tank module.

[0011] Preferably, the second stopper is an annular platform arranged along the cross section of the water production pipeline, the cross section of the top of the blocking member is smaller than the cross section of the water production pipeline, and the cross section of the top of the blocking member is greater than the inner ring cross section of the annular platform.

[0012] Preferably, the first stopper is a mesh plate with a cross section equal to the size of the cross section of the water production pipeline.

[0013] Preferably, the filter filling area is paved with filter filling materials.

[0014] Preferably, a one-way valve is arranged between the downstream of the water production inlet and the upstream of the first stopper.

[0015] Preferably, a water collecting tank is arranged inside the filter tank module, and the water collecting tank is in communication with the water production inlet.

[0016] Preferably, a filter screen is arranged at the upper part of the water production inlet.

[0017] Preferably, the first air inlet pipeline and the second air inlet pipeline are in communication with the fan through a total ventilation pipeline, and the total ventilation pipeline is higher than the filter tank module.

[0018] The present application at least includes the following advantages:

[0019] Firstly, the present application uses the sealing assembly inside the water production pipeline to replace the valve to achieve the control effect by using the different forces received by the sealing member during backwashing, and sets an external backwashing ventilation assembly to perform regular backwashing on the filter filler area in the filter module. Compared with valve control, the present application has low failure rate, avoids manual control, and is fully automatically operated and controlled, thereby reducing operation and maintenance costs; compared with gravity valve control, the present application can perform regular backwashing, and has better backwashing effect.

[0020] Secondly, the present application adopts modular design, and cancels the filter head and single-hole membrane aerator used for water distribution and air distribution of the traditional filter, thereby revolutionarily reducing the operation and maintenance difficulty.

[0021] Thirdly, the backwashing air quantity required by the present application is small, and no additional water backwashing is needed, thereby greatly reducing the investment and operation cost.

[0022] Fourthly, the backwashing wastewater of the present application is continuous flow, thereby greatly reducing the backwashing drainage equipment.

[0023] Other advantages, objects and features of the present application will be partly embodied through the following description, and will be partly understood by those skilled in the art through research and practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 FIG. 1 is a structural schematic diagram of the filter module according to the present application;

[0025] Figure 2 FIG. 2 is a structural schematic diagram of the sealing assembly according to the present application;

[0026] Figure 3 FIG. 3 is a three-dimensional structural schematic diagram of the filter module according to the present application;

[0027] Figure 4 FIG. 4 is a position structural schematic diagram of the filter filler area and the second air inlet pipeline according to the present application;

[0028] Figure 5 FIG. 5 is a top view of the modular intelligent full-automatic backwashing filter according to the present application;

[0029] Figure 6 FIG. 6 is a sectional view of the modular intelligent full-automatic backwashing filter according to the present application;

[0030] Figure 7 FIG. 7 is a top view of the water collecting tank in the filter module and a structural schematic diagram of the water collecting tank according to the present application. DETAILED DESCRIPTION

[0031] The application will be described in further detail below with reference to the drawings, so that those skilled in the art can implement the application according to the description and the drawings.

[0032] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0033] It should be noted that the experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial channels unless otherwise specified. In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mount", "connect", "arrange" should be understood in a broad sense, for example, they can be fixedly connected, arranged, or detachably connected, arranged, or integrally connected, arranged. For those skilled in the art, the specific meanings of the above terms in the application can be understood according to the specific circumstances. The orientations or positional relationships indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0034] As shown in Figures 1-3 The application provides a modular intelligent full-automatic backwashing filter tank, which comprises:

[0035] A plurality of filter tank modules 1, a sewage inlet 5 is arranged at the bottom of the filter tank module 1, a backwashing drain 6 is arranged at the upper part of the filter tank module 1, and a filter filler area 7 is arranged in the filter tank module 1. The sewage inlet 5 is arranged at the bottom of the filter tank module 1, and the water outlet 23 is arranged at the upper part of the filter tank module 1. The sewage flows into the filter tank module 1 through the sewage inlet 5, the filter filler area 7 traps the sewage and microorganisms in the sewage, and the filtered water flows out from the water outlet 23 at the upper part of the filter tank module 1. The sewage inlet 5 is arranged at the bottom of the filter filler area 7, so that the sewage slowly rises in the filter tank module 1, and the sewage can fully contact with the filter filler area 7, thereby improving the trapping effect of the filter filler area 7 on the sewage and microorganisms; the backwashing drain 6 is further arranged at the upper part of the filter tank module 1. After the filter tank module 1 operates for a period of time, the filter filler area 7 will be blocked, at which time the filter filler area 7 needs to be backwashed to wash out the sewage and microorganisms in the filter filler area 7, and the backwashed sewage is discharged from the backwashing drain 6.

[0036] A water production pipeline 2 is arranged above the filter filling area 7, and the water production pipeline 2 is sequentially provided with a water production water inlet 21, an air outlet 22 and a water production water outlet 23 along the water flow direction, the water production water inlet 21 forms a filtered water inlet of the filter tank module 1, and the height of the water production water inlet 21 is not lower than the height of the water production water outlet 23. The sewage flows into the filter tank module 1 through the sewage water inlet 5, the filter filling area 7 traps the sludge and microorganisms in the sewage, the filtered water flows into the water production water inlet 21 of the water production pipeline 2, and then flows out from the water production water outlet 23; the sewage water inlet 5 is arranged at the bottom of the filter filling area 7, and the water production pipeline 2 is arranged above the filter filling area 7, so that the sewage slowly rises in the filter tank module 1, the sewage can fully contact with the filter filling area 7, and the trapping effect of the filter filling area 7 on the sludge and microorganisms is improved; the height of the water production water inlet 21 is not lower than the height of the water production water outlet 23, so as to prevent the backflow of the discharged water, and the backwashing water outlet 6 is higher than the water production water outlet 23, so that when the filter tank module 1 normally filters water, the filtered water flows out from the water production water outlet 23; the air outlet 22 is arranged on the water production pipeline 2, which is used for discharging the excess air in the water production pipeline 2 during backwashing, so as to prevent the formation of air resistance.

[0037] A plugging assembly 3 is arranged in a vertical water production pipeline 2 between the water production water inlet 21 and the air outlet 22, the plugging assembly 3 is sequentially provided with a first stopper 31, a plugging piece 32 and a second stopper 33 along the filtered water flow direction, the plugging piece 32 is movably arranged between the first stopper 31 and the second stopper 33, the density of the plugging piece 32 is greater than the density of water, and the cross-sectional size of the plugging piece 32 is arranged to upwardly close the second stopper 33 and downwardly close the first stopper 31. When the water is normally filtered, the filtered water flows into the water production water inlet 21 and flows out from the water production water outlet 23, and a gap is left between the plugging piece 32 and the pipe wall of the water production pipeline 2, the density of the plugging piece 32 is greater than the density of water, the self-gravity of the plugging piece 32 overcomes the buoyancy of water, the plugging piece 32 floats between the first stopper 31 and the second stopper 33, the plugging piece 32 does not move to the second stopper 33 along the water flow direction, and the second stopper 33 is blocked, the first stopper 31 functions to intercept the plugging piece 32, so that the plugging piece 32 is always arranged in a vertical water production pipeline, and the first stopper 31 has a water passage; when backwashing is performed, the plugging piece 32 moves upwardly to close the second stopper 33, so that the backwashing sewage cannot flow out from the water production water outlet 23.

[0038] The external backwash ventilation assembly 4 is arranged outside the filter tank module 1, and comprises a fan, a relay, a first air inlet pipe 41 and a second air inlet pipe 42. The fan is in communication with the first air inlet pipe 41 and the second air inlet pipe 42. The first air inlet pipe 41 is in communication with the water production pipe 2 between the first stopper 31 and the blocking piece 32. The second air inlet pipe 42 extends into the filter tank module 1 below the filter filler area 7. Air outlets 421 are uniformly arranged above the second air inlet pipe 42 along the length direction of the pipe. The relay is electrically connected with the fan. A total ventilation pipe is arranged between the fan and the first air inlet pipe 41 and the second air inlet pipe 42. When the fan blows compressed air into the filter tank module 1 to backwash the filter filler area 7, the fan blows air into the total ventilation pipe. The compressed air in the total ventilation pipe enters the first air inlet pipe 41 and the second air inlet pipe 42. Due to the pressure, the compressed air first enters the water production pipe 2 from the first air inlet pipe 41 (the pressure corresponding to the water level of the first stopper 31 is smaller than the pressure corresponding to the water level of the filter filler area 7), and pushes the blocking piece 32 upward to close the second stopper 33, thereby closing the water production outlet 23. Since the water in the water production pipe 2 can only flow from the water production inlet 21 to the water production outlet 23, the flow of the compressed air to the water production inlet 21 is blocked. Due to the resistance, the compressed air is forced to enter the filter tank module 1 from the second air inlet pipe 42. The compressed air is discharged from the air outlets 421 to the filter filler area 7, thereby backwashing the filter filler area 7. The sewage generated by the backwashing is discharged from the filter tank module 1 through the backwashing drain 6. When the backwashing is completed, the fan stops, and the blocking piece 32 is lowered under the action of gravity. The water production pipe 2 is automatically opened, the exhaust port 22 automatically discharges the excess air, and the water production operation continues. The first air inlet pipe 41 is higher than the backwashing drain 6, thereby preventing the water from flowing back to the fan during normal filtration.

[0039] In the above technical solution, when the water is normally filtered, sewage flows into the filter tank module 1 from the sewage inlet 5 at the bottom of the filter tank module 1, and the sewage slowly rises in the filter tank module 1, the filter filler area 7 traps the sludge and microorganisms in the sewage, and the filtered water at the upper part of the filter tank module 1 flows into the water production pipeline 2 from the water production inlet 21, and then flows out of the filter tank module 1 from the water production outlet 23; when backwashing, the fan is started, and due to the pressure, compressed air first enters the water production pipeline 2 from the first air inlet pipeline 41, the blocking piece 32 is pushed upward by the compressed air, the second stop piece 33 is closed, and the water production outlet 23 is closed. Air enters the filter tank module 1 from the second air inlet pipeline 42, and the compressed air is discharged to the filter filler area 7 from the air outlet 421, and the filter filler area 7 is backwashed, and the blocked filter filler area 7 is dredged. The sewage produced by backwashing is discharged from the filter tank module 1 from the backwashing drain 6, and after backwashing, the fan stops supplying compressed air, the blocking piece 32 descends under the action of gravity, the water production pipeline 2 is automatically opened, the exhaust port 22 automatically discharges excess air, and the water production operation continues. The relay controls the fan to start backwashing at regular intervals, and after a certain period of backwashing, the fan is automatically turned off. Through the ingenious design of the blocking assembly 3 inside the water production pipeline 2, the blocking piece 32 is subjected to different forces during backwashing, and the blocking assembly 3 is used instead of a valve to achieve the control effect. At the same time, the external backwashing ventilation assembly 4 is provided to backwash the filter filler area 7 in the filter tank module 1 at regular intervals. Compared with valve control, the present application has low failure rate, avoids manual control, and is fully automatic operation control, thereby reducing operation and maintenance costs. Compared with gravity valveless control, the present application can backwash at regular intervals, and the backwashing effect is better.

[0040] In another technical solution, as shown in Figures 5-6 A plurality of filter tank modules 1 are connected in sequence to form a group of filter tank modules 13, the backwashing drain 6 and the water production outlet 23 of the group of filter tank modules 13 extend towards the same side, the group of filter tank modules 13 is provided with parallel backwashing drain main pipes 11 and water production main pipes 12, the backwashing drain 6 of the group of filter tank modules 13 communicates with the backwashing drain main pipes 11, the water production outlet 23 of the group of filter tank modules 13 communicates with the water production main pipes 12, and the lower part of the group of filter tank modules 13 is provided with a distribution area 10. The distribution area 10 includes a plurality of independent distribution modules 101 and a total sewage inlet, one filter tank module 1 corresponds to one distribution module 101 below, and the outlet of one distribution module 101 communicates with the sewage inlet 5 of one filter tank module 1.

[0041] The modular intelligent full-automatic backwashing filter tank comprises two groups of filter tank modules. The two groups of filter tank modules are reversely arranged, and the backwashing drainage outlets 6 and the water production outlets 23 of the two groups of filter tank modules are oriented to the outside. Each group of filter tank modules 13 is provided with a backwashing drainage main pipe 11 and a water production main pipe 12. The backwashing drainage main pipe 11 and the water production main pipe 12 comprised by each group of filter tank modules 13 are parallel, and the backwashing drainage main pipe 11 is located above the water production main pipe 12. The backwashing drainage outlet 6 of each group of filter tank modules 13 is in communication with the backwashing drainage main pipe 11. The sewage generated by backwashing is converged from the backwashing drainage outlet 6 to the backwashing drainage main pipe 11, and then discharged from the backwashing drainage main pipe 11. The water production outlet 23 of each group of filter tank modules 13 is in communication with the water production main pipe 12. The filtered water is converged from the water production outlet 23 to the water production main pipe 12, and then discharged from the water production main pipe 12. The lower part of each group of filter tank modules 13 is provided with a distribution area 10. The inside of the distribution area 10 is provided with a plurality of independent distribution modules 101. The lower part of one filter tank module 1 corresponds to one distribution module 101. The distribution area 10 has one total sewage inlet. The sewage flows into each independent distribution module 101 from the total sewage inlet, and then flows into each filter tank module 1 from each independent distribution module 101 for sewage filtration. The backwashing filter tank of the present application adopts modular design. A plurality of filter tank modules can simultaneously perform filtration and backwashing, and the backwashing is automatically controlled throughout the process.

[0042] In another technical solution, as shown in Figure 2 The second stopper 33 is an annular platform arranged along the section of the water production pipeline 2. The section of the top of the blocking member 32 is smaller than the section of the water production pipeline 2, and the section of the top of the blocking member 32 is larger than the inner ring section of the annular platform. During normal filtration, the filtered water can flow through the gap between the blocking member 32 and the water production pipeline 2 and the gap in the middle of the annular platform. During backwashing, the section of the top of the blocking member 32 closes the gap in the middle of the annular platform, thereby closing the water production outlet 23.

[0043] In another technical solution, as shown in Figure 2 The first stopper 31 is a mesh plate with a section equal to the section of the water production pipeline 2. The section of the mesh plate is equal to the section of the water production pipeline 2, which serves to intercept the blocking member 32. The mesh plate has a gap in the middle, which does not hinder the normal flow of water.

[0044] In another technical solution, the filter filler area 7 is filter filler. The filter filler is heavy or light filler such as quartz sand, volcanic rock, activated carbon, pebbles, comet filter material, and polyurethane filter material.

[0045] In another technical solution, as shown in Figure 1 A one-way valve 24 is arranged between the downstream of the water production inlet 21 and the upstream of the first stopper 31. The one-way valve 24 allows water to flow only from the water production inlet 21 to the water production outlet 23, preventing the water in the water production pipeline 2 from flowing in the opposite direction.

[0046] In another technical solution, the filter tank module 1 is internally provided with a water collecting tank 8, which is in communication with the water production water inlet 21. The water collecting tank 8 is a strip-shaped tank, and water collecting tank water inlets 81 are provided on the two side walls of the water collecting tank 8. The water collecting tank water inlets 81 can be water inlets, rectangular weirs or triangular weirs, etc. The water collecting tank 8 is arranged at the middle position of the filter tank module 1, and water is turned into the water collecting tank 8 from the water collecting tank water inlets 81 on both sides of the water collecting tank 8, and then flows into the water production water inlet 21.

[0047] In another technical solution, a filter screen 9 is arranged at the upper part of the water production water inlet 21. The filter screen 9 is used to intercept dirt from entering the water production pipeline 2.

[0048] In another technical solution, the first air inlet pipeline 41 and the second air inlet pipeline 42 are in communication with the fan through a total ventilation pipeline, and the total ventilation pipeline is higher than the filter tank module 1. Compressed air enters the first air inlet pipeline 41 and the second air inlet pipeline 42 from the total ventilation pipeline, and the total ventilation pipeline is higher than the filter tank module 1, so as to prevent water from flowing back to the fan and damaging the fan.

[0049] The number of devices and the scale of processing described herein are used to simplify the description of the present application. The application, modification and variation of the present application are obvious to those skilled in the art.

[0050] Although the embodiments of the present application have been disclosed as above, it is not limited to the application and modification listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present application, and additional modifications can be easily realized by those skilled in the art, and therefore the present application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A modular intelligent fully automatic backwash filter tank, characterized in that, The utility model relates to a filter system, comprising: a plurality of filter modules, the bottom of the filter module is provided with sewage inlet, the upper portion of the filter module is provided with backwashing drainage port, the filter module is provided with filter filling area; water production pipeline is provided above the filter filling area, the water production pipeline is sequentially provided with water production inlet, exhaust port and water production outlet along the water flow direction, the water production inlet forms the filter water inlet part of the filter module, the height of the water production inlet is not less than the height of the water production outlet; blocking assembly is provided in the vertical water production pipeline between the water production inlet and exhaust port, the blocking assembly is sequentially provided with first stopper, blocking piece and second stopper along the filter water flow direction, the blocking piece is movably arranged between the first stopper and second stopper, the density of the blocking piece is greater than the density of water, the cross section size of the blocking piece is arranged to close the second stopper upwards and close the first stopper downwards; external backwashing ventilation assembly is arranged outside the filter module, comprising fan, relay, first air inlet pipeline and second air inlet pipeline, the fan is communicated with first air inlet pipeline, second air inlet pipeline, the first air inlet pipeline is communicated with the water production pipeline between the first stopper and blocking piece, the second air inlet pipeline is inserted into the filter module below the filter filling area, the second air inlet pipeline is uniformly provided with air outlet above along the pipeline length direction, the relay is electrically connected with the fan; compressed air of the first air inlet pipeline first pushes the blocking piece to move upwards to close the second stopper, then compressed air turns to the second air inlet pipeline due to resistance to enter the filter module to backwash; the relay controls the fan to start regularly, realizes full-automatic timing backwashing.

2. The modular smart fully automated backwashing filter according to claim 1, characterized in that, A plurality of filter modules are sequentially connected to form a group of filter modules, a group of filter modules are provided with parallel backwashing drainage main pipe and water production main pipe, a plurality of backwashing drainage ports of a group of filter modules are extended to the same side and communicated with the backwashing drainage main pipe, a plurality of water production outlets of a group of filter modules are extended to the same side and communicated with the water production main pipe, the lower portion of a group of filter modules is provided with distribution area, the distribution area comprises total sewage inlet and a plurality of independent distribution modules, the lower portion of one filter module corresponds to one distribution module, the outlet of one distribution module is communicated with the sewage inlet of one filter module.

3. The modular smart fully automated backwashing filter according to claim 2, characterized in that, The second stopper is annular platform arranged along the cross section of the water production pipeline, the cross section of the top of the blocking piece is smaller than the cross section of the water production pipeline, the cross section of the top of the blocking piece is greater than the inner ring cross section of the annular platform.

4. The modular smart fully automated backwashing filter according to claim 2, characterized in that, The first stopper is net plate with the cross section equal to the size of the cross section of the water production pipeline.

5. The modular smart fully automated backwashing filter according to claim 2, characterized in that, The filter filling area is paved with filter filling material.

6. The modular smart fully automated backwashing filter according to claim 2, wherein, A one-way valve is arranged between the downstream of the water production inlet and the upstream of the first stopper.

7. The modular smart fully automated backwashing filter according to claim 2, characterized in that, A water collecting tank is arranged inside the filter module, and the water collecting tank is communicated with the water production inlet.

8. The modular smart fully automated backwashing filter according to claim 2, wherein, A filter screen is arranged in the upper portion of the water production inlet.

9. The modular smart fully automated backwashing filter according to claim 2, wherein, The first air inlet pipeline and the second air inlet pipeline are communicated with the fan through total ventilation pipeline, and the total ventilation pipeline is higher than the filter module.

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