Novel backwashing filter

Abstract

The utility model relates to the technical field of backwashing filters, and discloses a novel backwashing filter. The device comprises a filter cylinder, a motor protection shell is connected to the right side of the filter cylinder, a gear motor is fixedly connected to the interior of the motor protection shell, a controller is fixedly installed at the top of the motor protection shell, a sleeve is fixedly connected to the bottom of the motor protection shell, and a gear shell is fixedly connected to the bottom of the sleeve; a rotating pipe is rotatably connected in the filter cartridge, the gear motor is in transmission connection with the rotating pipe, a flushing arm is fixedly connected to the rotating pipe, a lower fixing plate is fixedly connected in the filter cartridge, a communicating arm is fixedly connected to the lower fixing plate, and the top end of the rotating pipe penetrates through the lower fixing plate and is in contact with the bottom end of the communicating arm; and a filter element is arranged on the lower fixing plate. According to the utility model, the filtering operation is not interrupted during the backwashing work, and the filtering efficiency of the filter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of backwashing filters, in particular to a novel backwashing filter. Background Art

[0002] Backwash filter is suitable for filtering particulate impurities of high-flow, high-speed, low-viscosity fluids. It is a mechatronics product, widely used in metallurgy, chemical industry, electric power, oilfield reinjection water, ship ballast water, environmental water treatment, seawater desalination, circulating cooling water, oilfield reinjection water, boiler reuse, ultrafiltration reverse osmosis pre-filtration, ion exchange pre-treatment, papermaking nozzle filtration, etc. It is an advanced, efficient and easy-to-operate filtering device.

[0003] After searching, the related technology (CN 202022406186.4) discloses a new backwash filter, including a filter, a sedimentation tank and a base. The filter includes a shell and a bottom plate. A filter screen is arranged in the shell, the filter screen is connected to the bottom plate, a water inlet pipe is arranged in the bottom plate, and a water inlet valve is arranged in the water inlet pipe. A water outlet pipe is arranged on the top of the shell, and the water outlet pipe is externally connected to a sedimentation tank group, including a first sedimentation tank, a second sedimentation tank and a third sedimentation tank. A first partition and a second partition are arranged between the sedimentation tanks, and a discharge pipe is arranged in the third sedimentation tank; a spray pipe is arranged in the shell, a plurality of groups of spray heads are arranged at the bottom of the spray pipe, a spray valve is arranged on the spray pipe, and a water pump is arranged outside the spray pipe; a support is arranged on the base, a connecting shaft is arranged outside the shell, the support frame is connected to the connecting shaft, a side plate is arranged on the base, a support seat is arranged on the side plate, a first rotating shaft is arranged between the support seats, a hydraulic cylinder is arranged on the first rotating shaft, a fixing plate is arranged outside the shell, and a second rotating shaft connected to the hydraulic cylinder is arranged between the fixing plates.

[0004] However, the new backwash filter cannot perform filtering and backwashing operations at the same time when it is working. The water inlet valve must be closed first, and then the sewage valve and the spray valve must be opened. The water inlet valve can be reopened after the backwashing is completed and the equipment resumes normal operation. This greatly reduces the filtration efficiency of the filter, and the operation is cumbersome and inconvenient. Therefore, it is necessary to provide a new backwash filter to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a novel backwash filter.

[0006] The utility model is implemented by the following technical scheme: a filter cartridge, a motor protection shell is connected to the right side of the filter cartridge, a reduction motor is fixedly connected inside the motor protection shell, a controller is fixedly installed on the top of the motor protection shell, a sleeve is fixedly connected to the bottom of the motor protection shell, a gear shell is fixedly connected to the bottom of the sleeve, a rotating tube is rotatably connected inside the filter cartridge, the reduction motor is transmission-connected to the rotating tube, a flushing arm is fixedly connected to the rotating tube, a lower fixed plate is fixedly connected inside the filter cartridge, a connecting arm is fixedly connected to the lower fixed plate, the top end of the rotating tube passes through the lower fixed plate and contacts with the bottom end of the connecting arm, and a filter element is arranged on the lower fixed plate.

[0007] As a further improvement of the above scheme, a water inlet pipe is fixedly connected to the filter cartridge, three pressure gauges are fixedly connected to the filter cartridge, a sewage pipe is provided on the filter cartridge, a water stop valve is provided on the sewage pipe, a water outlet pipe is provided on the filter cartridge, valves are provided on the water outlet pipe and the water inlet pipe, and turntables are fixedly connected to both valves.

[0008] As a further improvement of the above scheme, a rotating rod is fixedly connected to the output shaft of the reduction motor, and the bottom end of the rotating rod and one end of the rotating tube are fixedly installed with a first bevel gear, and two fixed blocks are fixedly connected in the gear housing, and the same driving rod is rotatably connected to the two fixed blocks, and second bevel gears are fixedly installed at both ends of the driving rod, and the two first bevel gears are respectively meshed with the corresponding second bevel gears.

[0009] As a further improvement of the above solution, a plurality of legs are fixedly arranged at the bottom of the filter cartridge, and the plurality of legs are L-shaped.

[0010] As a further improvement of the above solution, the lower fixing plate is provided with a through hole, and the flushing arm is adapted to the through hole.

[0011] As a further improvement of the above solution, four brackets are fixedly connected to the bottom of the motor protection housing, and the bottoms of the four brackets are fixedly connected to the top of the same gear housing.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model cooperates with a reduction motor, a controller, a driving rod, a rotating tube, a flushing arm, a connecting arm, a pressure gauge and a water stop valve, and can perform filtering and backwashing operations simultaneously when the backwashing filter is working, which improves the filtering efficiency of the filter and saves a large amount of manpower and material resources consumed by manual backwashing. In addition, the equipment realizes overall automation, making the equipment more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view schematic diagram of the overall structure of the backwash filter of the utility model;

[0015] Figure 2It is a rear view schematic diagram of the overall structure of the backwash filter of the utility model;

[0016] Figure 3 It is a partial structural cross-sectional schematic diagram of the filter cartridge of the utility model;

[0017] Figure 4 It is a schematic top view of part of the structure of the filter cartridge in the utility model.

[0018] Description of main symbols:

[0019] 1. Filter cartridge; 2. Motor protection shell; 3. Reducer motor; 4. Controller; 5. Sleeve; 6. Gear housing; 7. Drive rod; 8. Rotating pipe; 9. Flushing arm; 10. Lower fixing plate; 11. Connecting arm; 12. Filter element; 13. Water inlet pipe; 14. Valve; 15. Turntable; 16. Pressure gauge; 17. Sewage pipe; 18. Stop valve; 19. Water outlet pipe; 20. Tripod. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Please combine Figures 1 to 4 The new backwash filter of this embodiment includes: a filter cartridge 1, a motor protection shell 2 is connected to the right side of the filter cartridge 1, a reduction motor 3 is fixedly connected inside the motor protection shell 2, a controller 4 is fixedly installed on the top of the motor protection shell 2, a sleeve 5 is fixedly connected to the bottom of the motor protection shell 2, a gear housing 6 is fixedly connected to the bottom of the sleeve 5, a rotating tube 8 is rotatably connected inside the filter cartridge 1, the reduction motor 3 is transmission-connected to the rotating tube 8, a flushing arm 9 is fixedly connected to the rotating tube 8, a lower fixed plate 10 is fixedly connected inside the filter cartridge 1, a connecting arm 11 is fixedly connected to the lower fixed plate 10, the top end of the rotating tube 8 passes through the lower fixed plate 10 and contacts with the bottom end of the connecting arm 11, and a filter element 12 is arranged on the lower fixed plate 10.

[0022] Through the above technical solution, the controller 4 controls the entire device, making the entire device automated, which greatly reduces the difficulty of operating the device. The contact portion between the rotating tube 8 and the connecting arm 11 is provided with a sealing ring, which ensures that when the rotating tube 8 rotates, no sewage will leak out and pollute the entire internal liquid.

[0023] A water inlet pipe 13 is fixedly connected to the filter cartridge 1, three pressure gauges 16 are fixedly connected to the filter cartridge 1, a sewage pipe 17 is provided on the filter cartridge 1, a water stop valve 18 is provided on the sewage pipe 17, a water outlet pipe 19 is provided on the filter cartridge 1, valves 14 are provided on the water outlet pipe 19 and the water inlet pipe 13, and turntables 15 are fixedly connected to the two valves 14.

[0024] Through the above technical solution, the water to be filtered enters the filter cartridge 1 through the water inlet pipe 13, and after the filtration is completed, it flows out through the water outlet pipe 19. When backwashing operation is required, the water stop valve 18 needs to be opened, and the waste water then flows out through the sewage pipe 17. The three pressure gauges 16 monitor the pressure difference in the pipeline in real time, and the valve 14 can be closed and opened at any time by rotating the turntable 15.

[0025] A rotating rod is fixedly connected to the output shaft of the reduction motor 3, and a first bevel gear is fixedly installed on the bottom end of the rotating rod and one end of the rotating tube 8. Two fixed blocks are fixedly connected in the gear housing 6, and the same driving rod 7 is rotatably connected to the two fixed blocks. Second bevel gears are fixedly installed on both ends of the driving rod 7, and the two first bevel gears are respectively meshed with the corresponding second bevel gears.

[0026] Through the above technical solution, the two first bevel gears, the two second bevel gears and the drive 7 are transmission parts, so that the output shaft of the reduction motor 3 can drive the rotating tube 8 to rotate.

[0027] A plurality of brackets 20 are fixedly arranged at the bottom of the filter cartridge 1, and the plurality of brackets 20 are L-shaped.

[0028] Through the above technical solution, through the above technical solution, the design of multiple tripods 20 allows the equipment to run smoothly and ensures the stability of the entire device.

[0029] The lower fixing plate 10 is provided with a through hole, and the flushing arm 9 is adapted to the through hole.

[0030] Through the above technical solution, water flows directly into the filter element 12 through the through hole, which improves the filtering efficiency of the equipment. During backwashing, the flushing arm 9 will be aligned with the corresponding through hole, which ensures that no sewage will leak out and pollute the entire internal liquid.

[0031] Four brackets are fixedly connected to the bottom of the motor protection housing 2 , and the bottoms of the four brackets are all fixedly connected to the top of the same gear housing 6 .

[0032] Through the above technical solution, four brackets are used to support the motor protection shell 2 to ensure the smooth operation of the reduction motor 3.

[0033] The implementation principle of a new backwash filter in the embodiment of the present application is:

[0034] The first step: the water to be filtered enters the filter cartridge 1 from the water inlet pipe 13, and flows into the filter element 12 from the through hole of the lower fixed plate 10. After that, the liquid flows from the inside of the filter element 12 to the outside, and the filtered water flows out from the water outlet pipe 19. At this time, the solid particle impurities in the water are trapped inside the filter element 12. When the pollutants inside the filter element 12 are increasing, the pressure difference between the inside and outside of the filter element 12 will gradually increase. When the pressure difference reaches the set value, the pressure gauge 16 sends a signal, the controller 4 controls the reduction motor 3 to start, and the filter starts backwashing;

[0035] The second step: after the controller 4 turns on the reduction motor 3, the reduction motor 3 drives the first bevel gear to rotate, and the first bevel gear drives the corresponding second bevel gear to rotate, and one of the second bevel gears rotates to drive the driving rod 7 to rotate, and the driving rod 7 rotates to drive the other second bevel gear to rotate, when the other second bevel gear drives the first bevel gear fixedly connected to the bottom of the rotating tube 8 to rotate, the first bevel gear at the bottom of the rotating tube 8 rotates to drive the rotating tube 8 to rotate, and the rotating tube 8 drives the flushing arm 9 to rotate, so that the flushing arm 9 is aligned with the corresponding filter element 12. At this time, the controller 4 opens the water stop valve 18. Due to the pressure difference between the inside and outside of the cleaned filter element 12, the filter 12 is cleaned under the action of the pressure difference. The liquid on the outside of the core 12 flows to the inside for backwashing. The pollutants accumulated on the inside of the filter element 12 will be washed away and discharged from the filter through the sewage pipe 17. The backwashing time of each filter element 12 has been set. When the backwashing time is reached, the water stop valve 18 will be closed, and the backwashing process of the filter element 12 is completed. The reduction motor 3 drives the flushing arm 9 again to backwash the next group of filter elements 12. In this way, each filter element 12 is backwashed in a cycle. When all the filter elements 12 are backwashed, the reduction motor 3 will drive the flushing arm 9 to return to the initial position. Since the backwashing process is to backwash each filter element 12 separately, the filter can still allow the liquid to flow through the filter element 12 during the backwashing process to maintain the filtering state.

[0036] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A new type of backwash filter, characterized in that: include: A filter cartridge, wherein a motor protection shell is connected to the right side of the filter cartridge, a reduction motor is fixedly connected inside the motor protection shell, a controller is fixedly installed on the top of the motor protection shell, a sleeve is fixedly connected to the bottom of the motor protection shell, a gear housing is fixedly connected to the bottom of the sleeve, a rotating tube is rotatably connected inside the filter cartridge, the reduction motor is transmission-connected to the rotating tube, a flushing arm is fixedly connected to the rotating tube, a lower fixed plate is fixedly connected inside the filter cartridge, a connecting arm is fixedly connected to the lower fixed plate, the top end of the rotating tube passes through the lower fixed plate and contacts with the bottom end of the connecting arm, and a filter element is arranged on the lower fixed plate.

2. The novel backwash filter according to claim 1 is characterized in that: The filter cartridge is fixedly connected with a water inlet pipe, three pressure gauges are fixedly connected with the filter cartridge, a sewage pipe is arranged on the filter cartridge, a water stop valve is arranged on the sewage pipe, a water outlet pipe is arranged on the filter cartridge, valves are arranged on the water outlet pipe and the water inlet pipe, and turntables are fixedly connected to the two valves.

3. The novel backwash filter according to claim 1 is characterized in that: A rotating rod is fixedly connected to the output shaft of the reduction motor, and a first bevel gear is fixedly installed on the bottom end of the rotating rod and one end of the rotating tube. Two fixed blocks are fixedly connected in the gear housing, and the same driving rod is rotatably connected to the two fixed blocks. Second bevel gears are fixedly installed on both ends of the driving rod, and the two first bevel gears are respectively meshed with the corresponding second bevel gears.

4. The novel backwash filter according to claim 1 is characterized in that: A plurality of brackets are fixedly arranged at the bottom of the filter cartridge, and the plurality of brackets are L-shaped.

5. The novel backwash filter according to claim 1 is characterized in that: The lower fixing plate is provided with a through hole, and the flushing arm is adapted to the through hole.

6. The novel backwash filter according to claim 1, characterized in that: Four brackets are fixedly connected to the bottom of the motor protection shell, and the bottoms of the four brackets are all fixedly connected to the top of the same gear shell.

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