CN114470924B - Anti-blocking prefilter - Google Patents
Anti-blocking prefilter Download PDFInfo
- Publication number
- CN114470924B CN114470924B CN202210364425.5A CN202210364425A CN114470924B CN 114470924 B CN114470924 B CN 114470924B CN 202210364425 A CN202210364425 A CN 202210364425A CN 114470924 B CN114470924 B CN 114470924B
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- Prior art keywords
- filter screen
- shell
- plate
- floating block
- transmission rod
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- 238000011045 prefiltration Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims description 33
- 238000007667 floating Methods 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 7
- 238000011001 backwashing Methods 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 abstract description 4
- 238000000746 purification Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000011012 sanitization Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to the technical field of pipeline water purification equipment, in particular to an anti-blocking prefilter, which comprises: the device comprises a shell, a first filter screen, a second filter screen, a waterway conversion device, a rotating device, a limiting mechanism and a pipeline; the rotary device and the limiting mechanism are matched with each other, so that the waterway conversion device rotates step by step to complete the step-by-step back washing of the first filter screen and the second filter screen, so that the first filter screen and the second filter screen are prevented from being blocked due to the fact that impurities are attached to and accumulated on the first filter screen and the second filter screen for a long time, and only the valve is opened periodically to discharge sewage.
Description
Technical Field
The invention relates to the technical field of pipeline water purification equipment, in particular to an anti-blocking prefilter.
Background
The pre-filter is arranged at the front end of the pipeline and used for filtering and purifying water quality, but impurities are accumulated in the filter due to long-term use, the filter needs to be cleaned periodically, the filter needs to be detached for cleaning during cleaning, the operation is complex, and the trouble and the labor are wasted; leading filter with scrape washing technique, it has certain function of scraping, but because impurity infiltration filter screen filter element group spare hole in, can not thoroughly scrape the sanitization, lead to breeding of bacterium, if need the sanitization, also unpick and wash filter screen filter element group spare, current automatic reset formula back flush leading filter, wash the filter screen through changing the water route, but when carrying out the back flush to the filter screen, because the user can't observe the condition of washing of filter screen, can cause the flushing time short, to the abluent incomplete of filter screen, or the flushing time is long, lead to the waste of water resource.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide an anti-clogging prefilter in which a filter screen is partially backwashed by circulation to prevent impurities from adhering to and accumulating on the filter screen to clog the filter screen, and the above object is achieved by the following means:
an anti-clogging pre-filter comprising: the device comprises a shell, a first filter screen, a second filter screen, a waterway conversion device, a rotating device, a limiting mechanism and a pipeline.
The water inlet pipe and the water outlet pipe are communicated with the shell, the water outlet pipe is arranged at the lower end of the shell, and a valve is arranged on the water outlet pipe.
The water outlet pipe is connected to pipeline one end, the perpendicular downwardly extending of pipeline other end, the perpendicular decurrent one end of pipeline is connected with filter screen one, two bottom surfaces of filter screen are for sealing the form, two bottom surfaces of filter screen establish only the constant head tank along four directions, filter screen two sets up in filter screen below.
The waterway conversion device comprises: the upper end and the lower end of the shell are parallel to the top surface of the first filter screen, the bottom surfaces of the second filter screens are parallel, one surface of the shell is attached to the first filter screen and the second filter screen, one surface of the shell, which is attached to the first filter screen and the second filter screen, is an open surface, one surface of the shell, which faces the inner wall of the shell, is an arc surface, the bottom surface of the shell is provided with an opening, the top surface of the shell is provided with an installation ring, the installation ring is embedded on a pipeline, the sealing plate is fixed on the shell and positioned between the first filter screen and the second filter screen, the axis of the sealing plate is provided with a communication port, one side of the communication port is provided with a water inlet, the plate wraps the sealing plate, the drainage plate is positioned in the second filter screen, the two vertical wall surfaces at the two sides of the drainage plate are attached to the inner wall of the second filter screen, the upper end of the drainage plate is fixed in the water inlet of the sealing plate, and the lower end of the drainage plate is attached to the bottom surfaces of the second filter screen, the assembly plate bottom surface is provided with axle one, axle two is fixed in axle one bottom surface, and axle two diameters are less than axle one, the assembly plate top surface is provided with the spring beam.
The rotating device is used for transmitting the waterway conversion device, and the limiting mechanism is matched with the rotating device to enable the waterway conversion device to rotate step by step.
And a connecting pipe is arranged in the pipeline, one end of the connecting pipe extends into the water inlet and outlet pipe, and the other end of the connecting pipe is connected with the communication port of the sealing plate.
Preferably, the rotating means includes: blade, kicking block one, kicking block two, transfer line one, transfer line two, kicking block one is the ring form, a kicking block inlayed lagging and shell, the laminating of a kicking block outer wall and shells inner wall, blade quantity is a plurality of, and is a plurality of the blade sets up at a kicking block top surface, only perpendicular ascending recess is established to kicking block one side of bottom surface, kicking block two is the strip, in the recess of a kicking block bottom surface is inserted to two upper ends of kicking block, two lower extremes of kicking block have set gradually transfer line one, transfer line two, transfer line one, transfer line two are located the below of filter screen two.
Preferably, the limiting mechanism is cylindrical, the lower end of the limiting mechanism is fixed in the shell through a plurality of connecting rods, the upper end of the limiting mechanism is connected with the bottom surfaces of the filter screens, an annular groove is formed in the outer wall surface of the limiting mechanism, four limiting plates I and two limiting plates are arranged in the annular groove in an inclined mode, the four limiting plates I and two limiting plates are arranged along four directions, the four limiting plates I are located between the two adjacent limiting plates respectively, and the four limiting plates II are located below the four limiting plates I.
Preferably, the inclination angle of the blades is set to slow down the rotation speed of the blades driving the floating block I, so that the back washing time of the filter screen I and the filter screen II is prolonged.
The invention has the beneficial effects that:
the invention enables the waterway conversion device to rotate step by step through the mutual matching of the rotating device and the limiting mechanism, and finishes the step-by-step back washing of the first filter screen and the second filter screen so as to avoid the blockage of the first filter screen and the second filter screen caused by the long-term attachment and accumulation of impurities on the first filter screen and the second filter screen, and only the valve is opened periodically for sewage discharge.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is an exploded view of the present invention.
Fig. 3 is a schematic structural view of the waterway conversion device of the present invention.
Fig. 4 is a schematic view of a partial structure of the waterway conversion device of the present invention.
Fig. 5 is a top view of the inside of the housing of the present invention.
FIG. 6 is a schematic view of a rotary device according to the present invention.
FIG. 7 is a schematic cross-sectional view of a rotary device according to the present invention.
FIG. 8 is a schematic view of the deployment structure of the stop mechanism of the present invention.
FIG. 9 is a schematic view of the waterway flow of the present invention.
Fig. 10 is an exploded view of the first and second driving rods according to the present invention.
FIG. 11 is a schematic view of a transmission rod moving to an axis according to the present invention.
FIG. 12 is a schematic view of the rotation of the waterway conversion device according to the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are easily implemented by those having ordinary skill in the art to which the present invention pertains, however, the present invention may be implemented in various forms, and thus, the present invention is not limited to the embodiments described below, and in addition, components not connected to the present invention will be omitted from the drawings for more clear description of the present invention.
The first embodiment:
as shown in fig. 1-2, an anti-clogging prefilter comprising: the device comprises a shell 1, a first filter screen 2, a second filter screen 3, a water path conversion device 4, a rotating device 5, a limiting mechanism 6 and a pipeline 7.
The water inlet pipe 11 and the water outlet pipe 12 are communicated with the shell 1, a water outlet pipe is arranged at the lower end of the shell 1, and a valve 13 is arranged on the water outlet pipe.
The water outlet pipe 12 is connected to pipeline 7 one end, the perpendicular downwardly extending of pipeline 7 other end, the perpendicular decurrent one end of pipeline 7 is connected with filter screen one 2, filter screen one 2 is the tubulose, filter screen one 2 and 1 axle center of casing are on same straight line.
The second filter screen 3 is tubular, the bottom surface of the second filter screen 3 is closed, only positioning grooves (not shown in the figure) are formed in the bottom surface of the second filter screen 3 along four directions, the second filter screen 3 is arranged below the first filter screen 2, the second filter screen 3 is the same as the first filter screen 2 in diameter, and the axis of the second filter screen is on the same straight line.
As shown in fig. 3, the waterway conversion device 4 includes: the casing 41 is positioned on one side of the first filter screen 2 and the second filter screen 3, the upper end of the casing 41 is parallel to the top surface of the first filter screen 2, the lower end of the casing 41 is parallel to the bottom surface of the second filter screen 3, the first filter screen 2 and the second filter screen 3 are attached to one side of the casing 41, one side of the first filter screen 2 and the second filter screen 3 attached to the casing 41 is an open side, one side of the casing 41 facing the inner wall of the casing 1 is an arc-shaped surface, an opening is formed in the bottom surface of the casing 41, an installation circular ring 411 is arranged on the top surface of the casing 41, the installation circular ring 411 is nested on one vertical downward end of the pipeline 7, so that the casing 41 is installed, the casing 41 can rotate through the installation circular ring 411, the sealing plate 43 is fixed on one side wall surface of the casing 41 facing the first filter screen 2, the sealing plate 43 is positioned between the first filter screen 2 and the second filter screen 3, the axial center of the sealing plate 43 is provided with a communication port, one side of the communication port is provided with a water inlet, the plate 42 wraps the sealing plate 43 and forms a circular wall surface with the arc-shaped surface of the shell 41, the plate 42 has a certain thickness, the drainage plate 44 is positioned in the filter screen II 3, the two vertical wall surfaces of the two sides of the drainage plate 44 are attached to the inner wall of the filter screen II 3, the upper end of the drainage plate 44 is fixed in the water inlet of the sealing plate 43, the lower end of the drainage plate 44 is attached to the bottom surface of the filter screen II 3, when the shell 41 rotates along the axial center of the filter screen I2 as shown in figure 5, the filter screen I2 and the filter screen II 3 are evenly divided into a plurality of parts for covering through the shell 41 and the drainage plate 44, the assembly plate 45 is annular, the bottom surface of the assembly plate 45 is provided with a shaft I451 and a shaft II 452, the shaft II 452 is fixed on the bottom surface of the shaft I451, the shaft I451 and the shaft II are fixed on the same straight line, the diameter of the second shaft 452 is smaller than that of the first shaft 451, the spring rod 453 is arranged on the top surface of the assembling plate 45, the bottom surface of the spring rod 453 is an arc surface, and the spring rod 453 is inserted into one positioning groove, so that the shell 41 is positioned.
As shown in fig. 6 to 7, the rotating device 5 includes: the water purifier comprises blades 51, a first floating block 52, a second floating block 53, a first transmission rod 54 and a second transmission rod 55, wherein the first floating block 52 is annular, the inner wall of the first floating block 52 is embedded in the plate 42 and the shell 41, the outer wall of the first floating block 52 is attached to the inner wall of the shell 1, a baffle is arranged on the inner wall of the shell 1, the baffle limits the maximum height of the first floating block 52, namely the first floating block 52 is parallel to the top surface of the plate 42, the shell 1 is divided into an upper space and a lower space through the first floating block 52, the plate 42 and the shell 41, a first filter screen 2 is positioned in the upper space of the shell 1, a second filter screen 3 is positioned in the lower space of the shell 1, the blades 51 are arranged in a plurality, the blades 51 are arranged on the top surface of the first floating block 52 at equal intervals along the axis of the first floating block 52, the blades 51 are driven to rotate when water flows, one side of the bottom surface of the first floating block 52 is provided with a groove which is vertically upward, the second floating block 53 is in a strip shape, the upper end of the second floating block 53 is inserted into a groove in the bottom surface of the first floating block 52, the lower end of the second floating block 53 is sequentially provided with a first transmission rod 54 and a second transmission rod 55, the first transmission rod 54 and the second transmission rod 55 are located below the second filter screen 3, and the first transmission rod 54 is attached to the first shaft 451 or the second shaft 452.
The limiting mechanism 6 is cylindrical, the lower end of the limiting mechanism 6 is fixed in the shell 1 through a plurality of connecting rods, the upper end of the limiting mechanism 6 is connected with the bottom surface of the second filter screen 3, the second filter screen 3 is fixed, as shown in fig. 8, an annular groove 61 is arranged on the outer wall surface of the limiting mechanism 6, the annular groove 61 is internally provided with four first limit plates 62 and four second limit plates 63, the first limit plates 62 and the second limit plates 63 are obliquely arranged, the downward inclination direction of the first limit plates 62 and the second limit plates 63 is the same as the rotation direction of the plurality of blades 51, the four second limit plates 63 are arranged along four directions, the angles of the four second limit plates 623 and the four positioning grooves are the same, the four first limit plates 62 are respectively located between the two adjacent second limit plates 63, and the four second limit plates 63 are located below the four first limit plates 62.
A connecting pipe 71 is arranged in the pipeline 7, one end of the connecting pipe 71 extends into the water inlet pipe 12, and the other end of the connecting pipe 71 is connected with the communication port of the sealing plate 43, so that the second filter screen 3 is communicated with the connecting pipe 71.
The working principle of the invention is as follows:
as shown in fig. 9, water enters the casing 1 along the water inlet pipe 11, the water is filtered through the first filter screen 2, part of the filtered water flows to the water outlet pipe 12 along the pipeline 7, part of the water backflushes the first filter screen 2 covered by the casing 41, the water enters the second filter screen 3 along the guide plate 44, the second filter screen 3 covered by the guide plate 44 is backflushed, the backflushed water is discharged along the lower opening of the casing 41, and is then filtered again along the second filter screen 3 and flows to the water outlet pipe 12 through the connecting pipe 71, when the water flushes the first filter screen 2 and the second filter screen 3 for a period of time, the waterway conversion device 4 rotates ninety degrees through the rotating device 5 to backflush the other parts of the first filter screen 2 and the second filter screen 3, and the circulation is performed so as to prevent impurities from being attached to and accumulated on the first filter screen 2 and the second filter screen 3 for a long time to cause the first filter screen 2, The second filter screen 3 is blocked, only the valve 13 is opened periodically for sewage discharge, specifically, after the valve 13 is opened, the first floating block 52 descends, so that the first floating block 52 and the plate 42 are staggered, namely, the upper space in the shell 1 is opened, and impurities in the shell 1 are discharged along a sewage discharge pipe.
The specific steps of the rotation device 5 driving the waterway conversion device 4 to rotate are shown in fig. 10, first the transmission rod 54 abuts against the first shaft 451 to push the shell 41 to rotate, as shown in a in fig. 10, the transmission rod second 55 abuts against the first limit plate 62, the transmission rod second 55 moves downwards along the slope of the first limit plate 62, the transmission rod first 54 moves synchronously with the transmission rod second 55, the transmission rod second 55 separates from the first limit plate 62, as shown in B in fig. 10, the transmission rod first 54 abuts against the second shaft 452 to push the shell 41 to continue to rotate, and the transmission rod first 54 moves downwards synchronously with the height of the transmission rod second 55, as shown in C in fig. 10, the transmission rod second 55 abuts against the second limit plate 63, the transmission rod second 55 moves downwards along the slope of the second limit plate 63, so that the transmission rod first 54 separates from the second shaft 452, the spring rod 453 is inserted into the positioning groove to position the shell 41, at this time, the waterway conversion device 4 rotates ninety degrees, when the first transmission rod 54 rotates for one circle, the waterway conversion device 4 is pushed to rotate ninety degrees again, that is, the time taken for the first transmission rod 54 to rotate for one circle is the backwashing time for the first filter screen 2 and the second filter screen 3, and in the process that the second transmission rod 55 and the first transmission rod 54 rotate synchronously, as shown in fig. 11, the second transmission rod 55 moves downwards along the slope of the first limit plate 62, and after separation, the second floating block 53 drives the first transmission rod 54 and the second transmission rod 55 to move upwards again to abut against the first shaft 451, so that the shell 41 is pushed to rotate.
Claims (2)
1. An anti-clogging pre-filter comprising: the device comprises a shell (1), a first filter screen (2), a second filter screen (3), a waterway conversion device (4), a rotating device (5), a limiting mechanism (6) and a pipeline (7); the water inlet pipe (11) and the water outlet pipe (12) are communicated with the shell (1), the lower end of the shell (1) is provided with a water drainage pipe, and a valve (13) is arranged on the water drainage pipe; the method is characterized in that: one end of the pipeline (7) is connected with a water outlet pipe (12), the other end of the pipeline (7) vertically extends downwards, one vertically downward end of the pipeline (7) is connected with a first filter screen (2), the bottom surface of a second filter screen (3) is closed, only positioning grooves are formed in the bottom surface of the second filter screen (3) along four directions, and the second filter screen (3) is arranged below the first filter screen (2);
the waterway conversion device (4) comprises: the water-saving drainage device comprises a shell (41), a plate (42), a sealing plate (43), a drainage plate (44) and an assembly plate (45), wherein the upper end and the lower end of the shell (41) are parallel to the top surface of a first filter screen (2), the bottom surface of a second filter screen (3) is parallel to the bottom surface of the first filter screen (2), one surface of the shell (41) is attached to the first filter screen (2) and the second filter screen (3), one surface of the shell (41) which faces the inner wall of a shell (1) is an open surface, the bottom surface of the shell (41) is provided with an opening, the top surface of the shell (41) is provided with an installation ring (411), the installation ring (411) is embedded on a pipeline (7), the sealing plate (43) is fixed on the shell (41) and positioned between the first filter screen (2) and the second filter screen (3), the axis of the sealing plate (43) is provided with a communication port, and one side of the communication port is provided with a water inlet, the plate (42) wraps the sealing plate (43), the outer wall of the plate (42) is attached to the inner wall of the shell (1), the drainage plate (44) is located in the second filter screen (3), the vertical wall surfaces of the two sides of the drainage plate (44) are attached to the inner wall of the second filter screen (3), the upper end of the drainage plate (44) is fixed in a water inlet of the sealing plate (43), the lower end of the drainage plate (44) is attached to the bottom surface of the second filter screen (3), the bottom surface of the assembly plate (45) is provided with a first shaft (451) and a second shaft (452), the second shaft (452) is fixed to the bottom surface of the first shaft (451), the diameter of the second shaft (452) is smaller than that of the first shaft (451), and the top surface of the assembly plate (45) is provided with a spring rod (453);
the rotating device (5) is used for transmitting the waterway conversion device (4), the limiting mechanism (6) is matched with the rotating device to enable the waterway conversion device (4) to rotate step by step, and the rotating device (5) comprises: the filter screen comprises blades (51), a first floating block (52), a second floating block (53), a first transmission rod (54) and a second transmission rod (55), wherein the first floating block (52) is annular, the first floating block (52) is embedded into a plate (42) and a shell (41), the outer wall of the first floating block (52) is attached to the inner wall of the shell (1), the blades (51) are arranged in a plurality, the blades (51) are arranged on the top surface of the first floating block (52), only a vertical upward groove is formed in one side of the bottom surface of the first floating block (52), the second floating block (53) is strip-shaped, the upper end of the second floating block (53) is inserted into the groove in the bottom surface of the first floating block (52), the lower end of the second floating block (53) is sequentially provided with the first transmission rod (54) and the second transmission rod (55), the first transmission rod (54) and the second transmission rod (55) are positioned below the second filter screen (3), and the limiting mechanism (6) is cylindrical, the lower end of the limiting mechanism (6) is fixed in the shell (1) through a plurality of connecting rods, the upper end of the limiting mechanism (6) is connected with the bottom surface of the second filter screen (3), an annular groove (61) is formed in the outer wall surface of the limiting mechanism (6), four limiting plates I (62) and four limiting plates II (63) are arranged in the annular groove (61), the limiting plates I (62) and the limiting plates II (63) are obliquely arranged, the four limiting plates II (63) are arranged along four directions, the four limiting plates I (62) are respectively located between two adjacent limiting plates II (63), and the four limiting plates II (63) are located below the four limiting plates I (62);
a connecting pipe (71) is arranged in the pipeline (7), one end of the connecting pipe (71) extends into the water inlet and outlet pipe (12), and the other end of the connecting pipe (71) is connected with a communication port of the sealing plate (43).
2. An anti-clogging prefilter according to claim 1 wherein: the inclination angle of a plurality of blades (51) is set so as to slow down the rotation speed of the floating blocks (52) driven by the plurality of blades (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210364425.5A CN114470924B (en) | 2022-04-08 | 2022-04-08 | Anti-blocking prefilter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210364425.5A CN114470924B (en) | 2022-04-08 | 2022-04-08 | Anti-blocking prefilter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114470924A CN114470924A (en) | 2022-05-13 |
| CN114470924B true CN114470924B (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210364425.5A Active CN114470924B (en) | 2022-04-08 | 2022-04-08 | Anti-blocking prefilter |
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| CN (1) | CN114470924B (en) |
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| DK201870747A1 (en) * | 2018-11-14 | 2020-06-23 | Bollfilter Nordic Aps | Filter candle and method for operating such filter candle |
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| CN104771947A (en) * | 2012-09-04 | 2015-07-15 | 福建百川资源再生科技有限公司 | Re-improved type pulse full-automatic backwashing filter |
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| CN104014178A (en) * | 2014-06-18 | 2014-09-03 | 孙坤波 | Filter device of automatic backwashing lubricating oil |
| CN208839154U (en) * | 2018-08-31 | 2019-05-10 | 陈可铭 | It is a kind of to concentrate rotary backwash filter |
| CN211935852U (en) * | 2020-01-19 | 2020-11-17 | 海宁市水享净水设备有限公司 | Back flush filter |
| CN211799191U (en) * | 2020-02-16 | 2020-10-30 | 江苏纯润环保科技有限公司 | Filter with torsion control function |
| CN111536048A (en) * | 2020-04-23 | 2020-08-14 | 江苏大学 | Anti-blocking device and sewage pump |
| CN113952769A (en) * | 2020-07-20 | 2022-01-21 | 杭州水享环境科技有限公司 | Novel pre-filter |
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