An automatic backwashing high-efficiency filtration device

Abstract

The present invention discloses an automatic backwashing high-efficiency filtering device, which includes a filtering tank. A plurality of filtering cylinders are arranged inside the filtering tank. An end cover is arranged at the upper part of the filtering tank. An inner upper seat is arranged on the end cover. The inner upper seat is connected to the upper end of the filtering cylinder. A sewage pipe is connected to the filtering cylinder. The sewage pipe is connected to a sewage inlet pipe on the end cover. The lower end of the filtering cylinder is installed on the inner lower seat at the bottom of the filtering tank. A filter pipe is arranged at the bottom of the inner lower seat. A swirl flushing mechanism is arranged on one side above the upper end of the water outlet. A backwashing reflux device is arranged on the filter element. The backwashing reflux device includes a backwashing hole and a backwashing valve body mechanism. Through this device, when the filtering efficiency decreases during the filtering process, it can be cleaned by rapid backwashing. During the backwashing process, the outside of the filter element is flushed, which speeds up the filtering and flushing efficiency and completes the efficient operation of the flushing. Moreover, the flushing is cleaner and the filtering effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of backwashing filters, and particularly to an automatic backwashing high-efficiency filtering device. Background Art

[0002] A backwashing filter is a precision device that directly intercepts impurities in water using a filter screen, removes suspended solids and particulate matter in the water body, reduces turbidity, purifies water quality, reduces the generation of system dirt, bacteria, algae, rust, etc., to purify water quality and protect the normal operation of other equipment in the system. Water enters the self-cleaning filter body from the water inlet. Due to the intelligent (PLC, PAC) design, the system can automatically identify the degree of impurity deposition and send a signal to the sewage discharge valve to automatically discharge sewage. However, during the backwashing process, due to the relatively high water pressure during the filtration process, the particulate matter on the filter presses against the filter, resulting in an unsatisfactory backwashing effect during the backwashing process, the cleaning of the adhesive substances on the filter wall is not clean, and residues remain in each backwashing, resulting in a gradual reduction in the flushing effect, and further resulting in the replacement of the filter element in the later stage. The purpose of this setting is to clean the backwashing filter element more cleanly and efficiently, and at the same time extend the service life of the filter element. Summary of the Invention

[0003] The purpose of the present invention is to provide an automatic backwashing high-efficiency filtering device to solve the problems raised in the above background art. Through this device, the filtration efficiency can be decreased during the filtration process, and it can be cleaned through rapid backwashing. During the backwashing process, external flushing of the filter element is carried out to accelerate the filtration flushing efficiency and complete the efficient operation of the flushing, and the flushing is cleaner and the filtration effect is better.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] An automatic backwashing high-efficiency filtering device includes a filtering tank. A plurality of filtering cylinders are arranged in the filtering tank. An end cover is arranged on the upper part of the filtering tank. An inner upper seat is arranged on the end cover. The inner upper seat is connected to the upper end of the filtering cylinder. A sewage pipe is connected to the filtering cylinder. The sewage pipe is connected to the sewage inlet pipe on the end cover. The lower end of the filtering cylinder is installed on the inner lower seat of the filtering tank. A filter pipe is arranged at the bottom of the inner lower seat. The filter pipe is connected to the outlet pipe on one side of the filtering tank. A filter core body is arranged in the filtering cylinder. An outlet is arranged on the filtering cylinder at the bottom of the filter core body. The outlet is connected to the filter pipe of the inner lower seat. An inlet is arranged on the filtering cylinder on the outer side of the upper end of the filter core body. The inlet is connected to the sewage pipe of the inner upper seat. A swirl flushing mechanism is arranged on one side at the upper end of the outlet. The swirl flushing mechanism is arranged on the inner wall of the filtering cylinder. A backwashing reflux device is arranged on the filter core body. The backwashing reflux device includes a backwashing hole and a backwashing valve body mechanism.

[0006] Preferably, the swirl flushing device includes a swirl base, which is arranged on a swirl groove on the inner wall of the filter cylinder body. The swirl base is connected to the swirl groove through a sliding mechanism. A rotary brush support arm is arranged on the swirl base, a rotary brush seat is connected to the rotary brush support arm, and a rotary brush roller is arranged on the rotary brush seat. The rotary brush roller is arranged in parallel around the periphery of the filter core body.

[0007] Preferably, a two-way flushing control valve body is arranged in the swirl groove. The two-way flushing control valve body includes a driving rotary valve body port and a rotary brush roller moving valve body port. The driving rotary valve body port is connected to the swirl groove, and the rotary brush roller moving valve body port is connected to the rotary brush roller through a driving pipe. The driving pipe is fixed on the rotary brush support arm.

[0008] Preferably, the driving pipe is connected to a rotary water wheel on one side of the rotary brush roller through the rotary brush support arm. The rotary water wheel is rotationally connected to the rotary brush roller, and the driving pipe drives the rotary water wheel to rotate by spraying water.

[0009] Preferably, the sliding mechanism includes a sliding seat, which is installed in the swirl groove. The sliding seat is connected to the swirl base. A concave hole is arranged at the sliding connection between the sliding seat and the rotary groove, and the concave hole is meshed with the driving rotary valve body port in the rotary groove.

[0010] Preferably, a plurality of driving rotary valve body ports are arranged in the rotary groove, and the driving rotary valve body ports are connected through through holes arranged in the inner wall of the filter cylinder body.

[0011] Preferably, the swirl groove is spirally arranged on the inner wall of the filter cylinder body.

[0012] Preferably, the backwashing holes are arranged on the filter core body, and a backwashing valve body mechanism is connected to the backwashing holes. The backwashing holes penetrate through the filter wall of the filter core body, and a sealed inner pipe is arranged in the filter wall. Backwashing valve body mechanisms are arranged at both ends of the sealed inner pipe.

[0013] Preferably, the backwashing valve body mechanism includes a check valve body, which is arranged on the outer wall of the filter core body. The check valve body includes a check valve cover and a check valve plug. The check valve cover is fixedly connected to the check valve plug, and a movable hinge frame is arranged between the check valve cover and the check valve plug. The movable hinge frame is installed on the wall of the filter core body.

[0014] Preferably, the diameter of the check valve cover is larger than the diameter of the check valve plug. The check valve cover is arc-shaped and is arc-shapedly attached to the outer wall of the filter core body.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The swirl flushing mechanism can perform backwashing filtration through the backwashing filtered high-pressure water. During the filtration process, the flushing mechanism can clean the inside of the filter element. During the cleaning process, backwashing is carried out, and the flushing effect is better, which can further improve the cleaning effect.

[0017] 2. The swirl groove can drive the swirl seat to move and rotate, causing the brush support arm on the swirl seat to move. During the movement, the brush seat drives the brush roller to move, and the outer wall of the filter element is cleaned during the movement, improving the cleaning cleanliness and accelerating the cleaning speed at the same time.

[0018] 3. Designing multiple driving rotary valve body openings aims to prevent the situation where the water pressure is insufficient and the driving is not in place. By setting multiple valve body openings at different positions in the rotary groove, the function of adding force in the middle can be achieved, improving the backwashing effect, accelerating the rotation speed, and ensuring the flushing and cleaning function.

[0019] 4. The spiral shape can move at the gap between the filter cylinder and the filter element, ensuring the movement efficiency, improving the cleaning effect between both sides, and being able to clean the inner walls of both the filter element and the filter cylinder. Adjusting the brush support arm according to the actual situation can achieve the cleaning technology at both ends of the filter element and the filter cylinder.

[0020] 5. During the near cleaning process, to ensure the cleaning effectiveness and efficiency, reverse water pressure cleaning is carried out through the design of the check valve body. By setting a check cover and a check plug on the filter element, the check plug can be reopened during reverse flushing. After the check plug is reopened by reverse flushing, it sprays out from the circumference at the lower end of the check cover, instantaneously flushing the arc-shaped inner wall of the filter element to complete the flushing ability of the filter element.

[0021] 6. The diameter of the check cover is larger than that of the check plug, which can ensure that during filtration, the pressure tightly presses the check cover against the filter element, preventing unfiltered water from entering the interior. At the same time, during backwashing, after the high-pressure flushing water flushes open the check plug, it flows out from the bottom of the check cover, and the flushing water surges along the outer wall of the filter element to clean the outer wall of the filter element, more effectively achieving efficient backwashing. Brief Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the automatic backwashing high-efficiency filtration device of the present invention.

[0023] Figure 2 It is a schematic structural diagram of the filter cylinder of the present invention.

[0024] Figure 3 It is a schematic structural diagram of the swirl groove of the present invention.

[0025] Figure 4 This is a schematic structural principle diagram of the filter element and the backwashing reflux device of the present invention.

[0026] Figure 5 This is a schematic structural principle diagram of the check valve body of the present invention.

[0027] Figure 6 This is a schematic principle diagram of the swirl flushing mechanism of the present invention.

[0028] Figure 7 This is a schematic structural principle diagram of the sliding mechanism of the present invention.

[0029] Reference numerals: 1, filter tank; 2, filter cylinder; 3, end cover; 4, inner upper seat; 5, sewage pipe; 6, sewage inlet pipe; 7, inner lower seat; 8, filter pipe; 9, outlet pipe; 10, filter element; 11, water outlet; 13, water inlet; 14, swirl flushing mechanism; 15, backwashing reflux device; 16, backwashing hole; 17, backwashing valve body mechanism; 18, swirl seat; 19, swirl groove; 20, sliding mechanism; 21, rotary brush support arm; 22, rotary brush seat; 23, rotary brush roller; 24, two-way flushing control valve body; 25, driving rotary valve body port; 26, rotary brush roller moving valve body port; 27, driving pipe; 28, rotary water wheel; 29, sliding seat; 30, concave hole; 31, check valve body; 32, check valve cover; 33, check valve plug; 34, movable hinge frame. Detailed implementation manners

[0030] The following content will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings.

[0031] An automatic backwashing high-efficiency filtering device, comprising a filtering tank 1, wherein a plurality of filtering cylinders 2 are arranged in the filtering tank 1, an end cover 3 is arranged at the upper part of the filtering tank 1, an inner upper seat 4 is arranged on the end cover 3, the inner upper seat 4 is connected to the upper end of the filtering cylinder 2, a sewage pipe 5 is connected to the filtering cylinder 2, the sewage pipe 5 is connected to a sewage inlet pipe 6 on the end cover 3, the lower end of the filtering cylinder 2 is installed on an inner lower seat 7 of the filtering tank 1, a filter pipe 8 is arranged at the bottom of the inner lower seat 7, the filter pipe 8 is connected to an outlet pipe 9 on one side of the filtering tank 1, a filter core 10 is arranged in the filtering cylinder 2, a water outlet 11 is arranged on the filtering cylinder 2 at the bottom of the filter core 10, the water outlet 11 is connected to the filter pipe 8 of the inner lower seat, a water inlet 13 is arranged on the filtering cylinder 2 outside the upper end of the filter core 10, the water inlet 13 is connected to the sewage pipe 5 of the inner upper seat 4, a swirl flushing mechanism 14 is arranged on one side at the upper end of the water outlet 11, the swirl flushing mechanism 14 is arranged on the inner wall of the filtering cylinder 10, an anti-backwashing reflux device 15 is arranged on the filter core 10, and the anti-backwashing reflux device 15 comprises an anti-backwashing hole 16 and an anti-backwashing valve body mechanism 17; the swirl flushing mechanism 14 can perform anti-backwashing filtration through anti-backwashing filtered high-pressure water. During the filtration process, the filter core 10 can be cleaned through the flushing mechanism 14. During the cleaning process, anti-backwashing is carried out, and the flushing effect is better, and the cleaning effect can be further improved.

[0032] Preferably, the swirl flushing device 14 comprises a swirl seat 18, the swirl seat 18 is arranged on a swirl groove 19 on the inner wall of the filtering cylinder 2, the swirl seat 18 and the swirl groove 19 are connected through a sliding mechanism 20, a rotating brush support arm 21 is arranged on the swirl seat 18, a rotating brush seat 22 is connected to the rotating brush support arm 21, a rotating brush roller 23 is arranged on the rotating brush seat 22, the rotating brush roller 23 is arranged in parallel around the circumference of the filter core 14. The swirl groove 19 can drive the swirl seat 18 to move and rotate, so that the rotating brush support arm 21 on the swirl seat 18 moves. During the movement, the rotating brush seat 22 drives the rotating brush roller 23 to move, and the outer wall of the filter core 10 is cleaned during the movement, improving the cleaning cleanliness and accelerating the cleaning speed at the same time.

[0033] Preferably, a two-way flushing control valve body 24 is arranged in the swirl groove 19. The two-way flushing control valve body 24 includes a driving rotary valve body port 25 and a rotary brush roller moving valve body port 26. The driving rotary valve body port 25 is connected to the swirl groove 19, and the rotary brush roller moving valve body port 26 is connected to the rotary brush roller 23 through a driving pipe 27. The driving pipe 27 is fixed on the rotary brush support arm 21. A double flushing control valve body 24 is arranged in the swirl groove 19. The driving effect on the swirl seat 18 in the swirl groove 19 is completed through the double flushing control valve body 24, improving the moving efficiency of the swirl seat 18. At the same time, the rotary brush roller 23 is flushed and rotated through the rotary brush roller moving valve body port 26 to perform back flushing on the filter element 10 during the rotation process. The two-way control of the double flushing control valve body 24 enables the swirl flushing mechanism to not only rotate and move but also clean through the rotation of the roller, achieving a two-way driving effect and improving the flushing efficiency.

[0034] Preferably, the driving pipe 27 is connected to a rotary water wheel 28 on one side of the rotary brush roller 23 through the rotary brush support arm 21. The rotary water wheel 28 is rotatably connected to the rotary brush roller 23, and the driving pipe 27 drives the rotary water wheel 28 to rotate by spraying water; the driving pipe 27 conveys the high-pressure water for filter cleaning to the rotary water wheel 28, driving the rotary water wheel 28 to rotate, performing cleaning during the rotation process, and after cleaning, performing back flushing from the inside to the outside to improve the flushing efficiency and speed up the flushing speed. It is also possible to first perform back flushing from the inside to the outside and then flush the rotary water wheel 28 to improve the flushing efficiency.

[0035] Preferably, the sliding mechanism 20 includes a sliding seat 29. The sliding seat 29 is installed in the swirl groove 19. The sliding seat 29 is connected to the swirl seat 18. An oval hole 30 is arranged at the sliding connection between the sliding seat 29 and the rotary groove 19, and the oval hole 30 is meshed with the driving rotary valve body port 25 in the rotary groove 19; the sliding mechanism 20 moves driven by the sliding seat 29, and during the movement, the sliding seat 29 is driven to move forward by spraying water through the driving rotary valve body port 25, realizing the movement of the swirl flushing mechanism.

[0036] Preferably, a plurality of driving rotary valve body ports 25 are arranged in the rotary groove 19, and the driving rotary valve body ports 25 are connected through through holes arranged in the inner wall of the filter cylinder 10; the purpose of designing a plurality of driving rotary valve body ports 25 is to prevent the situation of insufficient water pressure and incomplete driving. By arranging a plurality of valve body ports at different positions in the rotary groove 19, the function of adding force in the middle can be achieved, improving the back flushing effect, accelerating the rotation speed, and ensuring the cleaning effect of flushing.

[0037] Preferably, the swirling groove 19 is spirally arranged on the inner wall of the filter cylinder 10; the spiral shape enables it to move at the gap between the filter cylinder 2 and the filter element 10, ensuring the efficiency of movement, enhancing the cleaning effect between the two sides, and enabling the cleaning of both the inner wall of the filter element 10 and the filter cylinder 2. Adjusting the rotating brush support arm according to the actual situation can achieve the cleaning technology at both ends of the filter element 10 and the filter cylinder 2.

[0038] Preferably, the backwash holes 16 are arranged on the filter element 10, the backwash valve body mechanism 17 is connected to the backwash holes 16, the backwash holes 16 penetrate the filter wall of the filter element 10, and a sealed inner tube is arranged inside the filter wall, and the backwash valve body mechanisms 17 are arranged at both ends of the sealed inner tube.

[0039] Preferably, the backwash valve body mechanism 17 includes a check valve body 31, the check valve body 31 is arranged on the outer wall of the filter element 10, the check valve body 31 includes a check valve cover 32 and a check valve plug 33, the check valve cover 32 and the check valve plug 33 are fixedly connected, and a movable hinge frame 34 is arranged between the check valve cover 32 and the check valve plug 33, and the movable hinge frame 34 is installed on the outer wall of the filter element 10; during the near cleaning process, to ensure the effectiveness and efficiency of cleaning, reverse water pressure cleaning is carried out through the design of the check valve body 31. By arranging the check valve cover 32 and the check valve plug 33 on the filter element 10, the check valve plug 33 can be reopened during reverse flushing. After the check valve plug 33 is reopened by reverse flushing water, it sprays out from the periphery of the lower end of the check valve cover 32, instantaneously flushing the arc-shaped inner wall of the filter element, and completing the flushing ability of the filter element.

[0040] Preferably, the diameter of the check valve cover 32 is larger than the diameter of the check valve plug 33, the check valve cover 32 is arc-shaped, and the check valve cover 32 is arc-shaped and fits the outer wall of the filter element 10. The diameter of the check valve cover 32 being larger than the diameter of the check valve plug 33 can ensure that during filtration, the pressure presses the check valve cover 32 tightly against the filter element 10, preventing unfiltered water from entering the interior. At the same time, during backwashing, after the high-pressure flushing water flushes open the check valve plug 33, it flows out from the bottom of the check valve cover, and the flushing water surges along the outer wall of the filter element 10, achieving the purpose of cleaning the outer wall of the filter element 10 and more effectively realizing efficient backwashing.

[0041] The above are only the preferred embodiments of the present invention. It should be noted that for those skilled in the art of this technology, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions are all regarded as within the protection scope of the present invention.

Claims

1. An automatic backwashing high-efficiency filtering device, comprising a filtering tank, characterized in that, A plurality of filter cylinders are arranged inside the filter tank. An end cover is arranged at the upper part of the filter tank, and an inner upper seat is arranged on the end cover. The inner upper seat is connected to the upper end of the filter cylinder. A sewage pipe is connected to the filter cylinder, and the sewage pipe is connected to a sewage inlet pipe on the end cover. The lower end of the filter cylinder is installed on the inner lower seat of the filter tank. A filter pipe is arranged at the bottom of the inner lower seat, and the filter pipe is connected to an outlet pipe on one side of the filter tank. A filter core is arranged inside the filter cylinder. An outlet is arranged on the filter cylinder at the bottom of the filter core, and the outlet is connected to the filter pipe of the inner lower seat. An inlet is arranged on the filter cylinder at the outer side of the upper end of the filter core, and the inlet is connected to the sewage pipe of the inner upper seat. A swirl flushing mechanism is arranged at one side of the upper end of the outlet, and the swirl flushing mechanism is arranged on the inner wall of the filter cylinder. A backwashing reflux device is arranged on the filter core, and the backwashing reflux device includes a backwashing hole and a backwashing valve body mechanism. The backwashing hole is arranged on the filter core, and the backwashing valve body mechanism is connected to the backwashing hole. The backwashing hole penetrates through the filter wall of the filter core, and a sealed inner pipe is arranged inside the filter wall. Backwashing valve body mechanisms are arranged at both ends of the sealed inner pipe. The backwashing valve body mechanism includes a check valve body, and the check valve body is arranged on the outer wall of the filter core. The check valve body includes a check valve cover and a check valve plug, and the check valve cover is fixedly connected to the check valve plug. A movable hinge frame is arranged between the check valve cover and the check valve plug, and the movable hinge frame is installed on the wall of the filter core; The swirl flushing mechanism includes a swirl seat, and the swirl seat is arranged on a swirl groove on the inner wall of the filter cylinder. The swirl seat and the swirl groove are connected through a sliding mechanism. A rotating brush support arm is arranged on the swirl seat, a rotating brush seat is connected to the rotating brush support arm, and a rotating brush roller is arranged on the rotating brush seat. The rotating brush roller is arranged in parallel around the circumference of the filter core; A two-way flushing control valve body is arranged in the swirl groove. The two-way flushing control valve body includes a driving rotation valve body port and a rotating brush roller moving valve body port. The driving rotation valve body port is connected to the swirl groove, and the rotating brush roller moving valve body port is connected to the rotating brush roller through a driving pipe. The driving pipe is fixed on the rotating brush support arm.

2. The automatic backwashing high-efficiency filtering device according to claim 1, characterized in that, The driving pipe is connected to a rotating water wheel on one side of the rotating brush roller through the rotating brush support arm. The rotating water wheel is rotationally connected to the rotating brush roller, and the driving pipe drives the rotating water wheel to rotate by spraying water.

3. The automatic backwashing high-efficiency filtering device according to claim 2, wherein The sliding mechanism includes a sliding seat. The sliding seat is installed in the swirl groove, and the sliding seat is connected to the swirl seat. A concave hole is arranged at the sliding connection between the sliding seat and the swirl groove, and the concave hole is meshed with the driving rotation valve body port in the swirl groove.

4. The automatic backwashing high-efficiency filtering device according to claim 3, characterized in that, A plurality of driving rotation valve body ports are arranged in the swirl groove, and the driving rotation valve body ports are connected through through holes arranged inside the inner wall of the filter cylinder.

5. An automatic backwashing high-efficiency filtering device according to claim 4, characterized in that, The swirl groove is spirally arranged on the inner wall of the filter cylinder.

6. The automatic backwashing high-efficiency filtering device according to claim 1, characterized in that, The diameter of the check valve cover is larger than the diameter of the check valve plug. The check valve cover is arc-shaped and is arc-shaped and fits closely to the outer wall of the filter element body.

Images