Full-automatic backwashing filtering device

Abstract

The utility model relates to the technical field of filtering equipment, and discloses a full-automatic backwashing filtering device which comprises a filtering bin, a liquid inlet and a liquid outlet are fixedly connected to the outer side of the filtering bin, a gear motor is fixedly connected to the upper end of the filtering bin, and a filtering assembly is arranged in the filtering bin. According to the full-automatic backwashing filtering device, the electric control box can preset a pressure difference value, when the pressure difference value is larger than the preset pressure difference value, it is indicated that the filter element is blocked and the filtering effect is poor, the backwashing process is started, the electric control box can also preset a fixed time interval, the electric control box starts the blow-down valve during backwashing, and the gear motor is started to drive the rotating shaft to rotate, so that the backwashing process is completed. When the filter element is filtered, a pressure difference is formed between the post-filtration area and the back-flushing suction nozzle, impurities in the filter element can be flushed into the back-flushing suction nozzle through the inner surface of the filter element and discharged out of the device through the suction pipe and the blow-off pipe, after the gear motor rotates by a circle, the back-flushing valve can be closed, the whole back-flushing process does not cause interruption of the filter flow, and the filter element is practical.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a full-automatic backwashing filtering device. Background Art

[0002] The backwash filter device is a liquid filtration equipment with excellent performance. It is widely used in many important fields such as industry, agriculture and environmental protection. During actual use, the device will continuously monitor the filtration resistance. Once the filtration resistance reaches a specific value or after a certain period of filtration, its advanced control system will quickly start the backwash program. At this time, the liquid will forcefully flush the filter element at a specific pressure and flow rate. During the backwash process, the impurities originally attached to the surface of the filter element are effectively washed off and discharged smoothly from the sewage outlet with the backwash liquid. When the backwash is completed, the filter device will quickly resume the filtration state and continue to perform filtration work in an orderly manner, providing reliable protection for production and environmental protection needs in various fields. With its efficient filtration and convenient backwashing function, it has become an indispensable important equipment in many industries.

[0003] Chinese utility model patent announcement number: CN217939391U, discloses a backwash filter device. After the filtration is completed, the valve hole on the valve plate 122 is closed, and clean water is introduced through the drain seat 102. At the same time, the filter screen 123 is cleaned by the brush plate 109 to ensure that impurities are collected inside the filter chamber 100. At this time, the drive motor on the sewage seat 106 is turned on to drive the guide rod 112 to rotate, so that the sealing block 113 moves and separates from the sealing seat 111, so that the cleaned impurities are discharged with the liquid. However, the backwash filter device needs to stop filtering and inject external clean water during the backwash operation. The backwash process interrupts the filtration process and cannot be used during filtration, resulting in relatively low efficiency. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a full-automatic backwashing filter device, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by the utility model is: a fully automatic backwash filter device, including a filter chamber, a liquid inlet and a liquid outlet are fixedly connected to the outside of the filter chamber, a reduction motor is fixedly connected to the upper end of the filter chamber, a filter assembly is arranged inside the filter chamber, the output end of the reduction motor is fixedly connected to the backwash assembly, a round seat is fixedly connected to the inner wall of the filter chamber, the lower end of the filter chamber is fixedly connected to the base, the upper end of the base is fixedly connected to the swivel seat, the lower end of the swivel seat is fixedly connected to a drain pipe, the outside of the drain pipe is fixedly connected to a drain valve, the outside of the filter chamber is fixedly connected to pressure sensor 1 and pressure sensor 2, and the outside of the filter chamber is fixedly connected to an electric control box;

[0006] The filter assembly includes a filter element, a fixing seat, a placement groove, an annular groove and a fixing rod. The lower end of the filter element is provided with a fixing seat, the upper end of the fixing seat is provided with a placement groove, the lower end of the fixing seat is provided with an annular groove, and the inner wall of the fixing seat is fixedly connected to the fixing rod;

[0007] The recoil assembly includes a rotating shaft, a recoil suction nozzle and a suction tube. The lower end of the rotating shaft is fixedly connected to the recoil suction nozzle, and the lower end of the recoil suction nozzle is fixedly connected to the suction tube.

[0008] Preferably, the liquid inlet and the second pressure sensor are both arranged below the round seat, and the liquid outlet and the first pressure sensor are both arranged above the round seat.

[0009] Through the above technical solution, a round seat is set up, and the space below the round seat and the internal space of the filter assembly form a pre-filtration area, and the space above the round seat and the external space of the filter assembly form a post-filtration area. When the filter medium is injected from the liquid inlet, the medium flows from the inside of the filter element to the outside, leaving the particles suspended in the medium on the inside of the filter element. The clean medium after the impurities are filtered out by the filter element is discharged through the liquid outlet.

[0010] Preferably, the output end of the reduction motor is fixedly connected to the rotating shaft, and the suction tube and the recoil suction nozzle are communicated with each other.

[0011] Through the above technical solution, during backwashing, the electric control box starts the drain valve and starts the reduction motor to drive the shaft to rotate. A pressure difference is formed between the post-filtration area and the backwash nozzle. The impurities inside the filter element will be washed into the backwash nozzle through the inner surface of the filter element and discharged through the suction pipe and the drain pipe. After the reduction motor rotates one circle, the backwash valve will close. The entire backwash process will not interrupt the filtration process, which is more practical.

[0012] Preferably, the suction tube is rotatably connected to the fixing rod, and the suction tube is rotatably connected to the rotating seat.

[0013] Through the above technical solution, the suction tube is rotatably connected to the fixed rod and the swivel seat, there are many limiting mechanisms, and the operation of the recoil assembly is stable.

[0014] Preferably, the sewage discharge pipe and the suction pipe are connected to each other.

[0015] Through the above technical solution, the sewage pipe and the suction pipe are interconnected, and impurities are discharged by relying on the pressure difference, with low energy consumption.

[0016] Preferably, the placement groove is adapted to the filter element, and the annular groove is adapted to the round seat.

[0017] Through the above technical solution, the annular groove is adapted to the round seat, and the fixing seat is pressed against the round seat by pressing the filter bin cover, so that the sealing effect is good.

[0018] Preferably, the electric control box is electrically connected to the pressure sensor 1, the pressure sensor 2, and the drain valve.

[0019] Through the above technical solution, pressure sensor 1 and pressure sensor 2 detect the pressure data inside the filter chamber in real time. The electronic control box can preset the pressure difference. When the pressure difference is greater than the preset pressure difference, it indicates that the filter element is blocked and the filtering effect is poor, then the backflushing process is started. The electronic control box can also preset a fixed time interval. When the filter device is used for a certain period of time, the backflushing process is started, and the degree of automation is high.

[0020] Compared with the existing technology, the present invention provides a fully automatic backwash filter device with the following beneficial effects:

[0021] 1. This fully automatic backwash filter device uses pressure sensor 1 and pressure sensor 2 to detect the pressure data inside the filter chamber in real time. The electronic control box can preset the pressure difference. When the pressure difference is greater than the preset pressure difference, it indicates that the filter element is clogged and the filtering effect is poor, then the backwash process is started. The electronic control box can also preset a fixed time interval. When the filter device has been used for a certain period of time, the backwash process is started. The degree of automation is high and it is easy to monitor. During backwashing, the electronic control box starts the drain valve and starts the reduction motor to drive the shaft to rotate. A pressure difference is formed between the post-filtration area and the backwash nozzle. Impurities inside the filter element will be washed into the backwash nozzle through the inner surface of the filter element and discharged from the device through the suction pipe and the drain pipe. After the reduction motor rotates one circle, the backwash valve will close. The entire backwash process will not interrupt the filtration process. It is more practical and relies on the pressure difference to discharge impurities with low energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the split structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the disassembled structure of the filter component and the backflush component of the utility model;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the utility model.

[0027] Among them: 1. Filter chamber; 2. Liquid inlet; 3. Liquid outlet; 4. Reducer motor; 5. Filter assembly; 501. Filter element; 502. Fixed seat; 503. Placement groove; 504. Ring groove; 505. Fixed rod; 6. Backflush assembly; 601. Rotating shaft; 602. Backflush nozzle; 603. Suction tube; 7. Round seat; 8. Base; 9. Rotating seat; 10. Drain pipe; 11. Drain valve; 12. Pressure sensor 1; 13. Pressure sensor 2; 14. Electric control box. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1: Figure 1-5 As shown, the utility model provides a fully automatic backwash filter device, including a filter chamber 1, a liquid inlet 2 and a liquid outlet 3 are fixedly connected to the outside of the filter chamber 1, a reduction motor 4 is fixedly connected to the upper end of the filter chamber 1, a filter assembly 5 is provided inside the filter chamber 1, a backwash assembly 6 is fixedly connected to the output end of the reduction motor 4, a round seat 7 is fixedly connected to the inner wall of the filter chamber 1, a base 8 is fixedly connected to the lower end of the filter chamber 1, a swivel seat 9 is fixedly connected to the upper end of the base 8, a drain pipe 10 is fixedly connected to the lower end of the swivel seat 9, a drain valve 11 is fixedly connected to the outside of the drain pipe 10, a pressure sensor 12 and a pressure sensor 2 13 are fixedly connected to the outside of the filter chamber 1, and an electric control box 14 is fixedly connected to the outside of the filter chamber 1;

[0030] The filter assembly 5 includes a filter element 501, a fixing seat 502, a placement groove 503, an annular groove 504, and a fixing rod 505. The fixing seat 502 is provided at the lower end of the filter element 501, the placement groove 503 is provided at the upper end of the fixing seat 502, the annular groove 504 is provided at the lower end of the fixing seat 502, and the fixing rod 505 is fixedly connected to the inner wall of the fixing seat 502;

[0031] The recoil assembly 6 includes a rotating shaft 601 , a recoil suction nozzle 602 and a suction tube 603 . The lower end of the rotating shaft 601 is fixedly connected to the recoil suction nozzle 602 , and the lower end of the recoil suction nozzle 602 is fixedly connected to the suction tube 603 .

[0032] Specifically, the liquid inlet 2 and the second pressure sensor 13 are both disposed below the circular seat 7, while the liquid outlet 3 and the first pressure sensor 12 are both disposed above the circular seat 7. The advantage is that, with the circular seat 7, the space below the circular seat 7 and the interior space of the filter assembly 5 form a pre-filtration zone, while the space above the circular seat 7 and the exterior space of the filter assembly 5 form a post-filtration zone. When the filter medium is injected through the liquid inlet 2, the medium flows outward from the filter element 501, leaving particles suspended in the medium inside the filter element 501. After impurities have been filtered by the filter element 501, the clean medium is discharged through the liquid outlet 3.

[0033] Specifically, the output end of the reduction motor 4 is fixedly connected to the rotating shaft 601, and the suction pipe 603 is interconnected with the backflushing nozzle 602. The advantage is that during backflushing, the electric control box 14 activates the drain valve 11 and starts the reduction motor 4 to drive the rotating shaft 601 to rotate, creating a pressure differential between the post-filtration area and the backflushing nozzle 602. Impurities inside the filter element 501 are flushed through the inner surface of the filter element 501 into the backflushing nozzle 602 and discharged from the device through the suction pipe 603 and the drain pipe 10. After the reduction motor 4 rotates one circle, the backflushing valve is closed. The entire backflushing process does not interrupt the filtration process, which is more practical.

[0034] Example 2: Figure 2-5 As shown, as an improvement to the previous embodiment.

[0035] Specifically, the suction tube 603 is rotatably connected to the fixed rod 505, and the suction tube 603 is rotatably connected to the rotating seat 9. The advantages are that the suction tube 603 is rotatably connected to the fixed rod 505 and the rotating seat 9, there are many limiting mechanisms, and the operation of the recoil assembly 6 is stable.

[0036] Specifically, the sewage pipe 10 is interconnected with the suction pipe 603. The advantage is that the sewage pipe 10 is interconnected with the suction pipe 603, and impurities are discharged by pressure difference, which has low energy consumption.

[0037] Specifically, the placement groove 503 is adapted to the filter element 501, and the annular groove 504 is adapted to the round seat 7. The advantage is that the annular groove 504 is adapted to the round seat 7, and the fixing seat 502 is pressed tightly against the round seat 7 by pressing the filter bin 1 cover, so the sealing effect is good.

[0038] Specifically, the electrical control box 14 is electrically connected to pressure sensor 1 12 , pressure sensor 2 13 , and drain valve 11 . Advantageously, pressure sensor 1 12 and pressure sensor 2 13 monitor the pressure inside the filter chamber 1 in real time. The electrical control box 14 can preset a pressure differential. When the pressure differential exceeds the preset pressure differential, it indicates that the filter element 501 is clogged and the filtration effect is poor, initiating a backflush process. The electrical control box 14 can also preset a fixed time interval to initiate the backflush process when the filter device has been in use for a certain period of time, resulting in a high degree of automation.

[0039] Working principle: When in use, the medium to be filtered is injected from the liquid inlet 2, and the medium flows from the inside of the filter element 501 to the outside, leaving the particles suspended in the medium inside the filter element 501. The clean medium after the impurities are filtered out by the filter element 501 is discharged through the liquid outlet 3. The pressure sensor 1 12 and the pressure sensor 2 13 detect the pressure data inside the filter chamber 1 in real time. The electric control box 14 can preset the pressure difference. When the pressure difference is greater than the preset pressure difference, it indicates that the filter element 501 is blocked and the filtering effect is poor, then the backflush process is started. The electric control box 14 can also preset a fixed time interval. When the filter After the device has been used for a certain period of time, the backwash process is started, which has a high degree of automation and is easy to monitor. During backwashing, the electric control box 14 starts the drain valve 11 and starts the reduction motor 4 to drive the rotating shaft 601 to rotate. A pressure difference is formed between the post-filtration area and the backwash nozzle 602. The impurities inside the filter element 501 will be washed into the backwash nozzle 602 through the inner surface of the filter element 501 and discharged from the device through the suction pipe 603 and the drain pipe 10. After the reduction motor 4 rotates one circle, the backwash valve will be closed. The entire backwash process will not interrupt the filtration process, which is more practical and relies on the pressure difference to discharge impurities, with low energy consumption.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic backwash filter device, comprising a filter chamber (1), characterized in that: The outer side of the filter chamber (1) is fixedly connected with a liquid inlet (2) and a liquid outlet (3); the upper end of the filter chamber (1) is fixedly connected with a reduction motor (4); a filter assembly (5) is provided inside the filter chamber (1); the output end of the reduction motor (4) is fixedly connected with a backwash assembly (6); the inner wall of the filter chamber (1) is fixedly connected with a round seat (7); the lower end of the filter chamber (1) is fixedly connected with a base (8); the upper end of the base (8) is fixedly connected with a rotating seat (9); the lower end of the rotating seat (9) is fixedly connected with a sewage pipe (10); the outer side of the sewage pipe (10) is fixedly connected with a sewage valve (11); the outer side of the filter chamber (1) is fixedly connected with a pressure sensor 1 (12) and a pressure sensor 2 (13); and the outer side of the filter chamber (1) is fixedly connected with an electric control box (14); The filter assembly (5) comprises a filter element (501), a fixing seat (502), a placement groove (503), an annular groove (504) and a fixing rod (505); the fixing seat (502) is provided at the lower end of the filter element (501); the placement groove (503) is provided at the upper end of the fixing seat (502); the annular groove (504) is provided at the lower end of the fixing seat (502); and the fixing rod (505) is fixedly connected to the inner wall of the fixing seat (502); The backflushing assembly (6) comprises a rotating shaft (601), a backflushing nozzle (602) and a suction tube (603); the lower end of the rotating shaft (601) is fixedly connected to the backflushing nozzle (602); and the lower end of the backflushing nozzle (602) is fixedly connected to the suction tube (603).

2. A fully automatic backwash filter device according to claim 1, characterized in that: The liquid inlet (2) and the second pressure sensor (13) are both arranged below the round seat (7), and the liquid outlet (3) and the first pressure sensor (12) are both arranged above the round seat (7).

3. The fully automatic backwash filter device according to claim 1, characterized in that: The output end of the reduction motor (4) is fixedly connected to the rotating shaft (601), and the suction tube (603) and the backflushing suction nozzle (602) are in communication with each other.

4. The fully automatic backwash filter device according to claim 1, characterized in that: The suction tube (603) is rotatably connected to the fixed rod (505), and the suction tube (603) is rotatably connected to the rotating seat (9).

5. The fully automatic backwash filter device according to claim 1, characterized in that: The sewage discharge pipe (10) and the suction pipe (603) are communicated with each other.

6. The fully automatic backwash filter device according to claim 1, characterized in that: The placement groove (503) is adapted to the filter element (501), and the annular groove (504) is adapted to the round seat (7).

7. The fully automatic backwash filter device according to claim 1, characterized in that: The electric control box (14) is electrically connected to the pressure sensor 1 (12), the pressure sensor 2 (13), and the sewage valve (11).

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