CN117085391B - Self-cleaning sewage filtering device - Google Patents
Self-cleaning sewage filtering device Download PDFInfo
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- CN117085391B CN117085391B CN202311359739.7A CN202311359739A CN117085391B CN 117085391 B CN117085391 B CN 117085391B CN 202311359739 A CN202311359739 A CN 202311359739A CN 117085391 B CN117085391 B CN 117085391B
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- filter
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- telescopic
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- 238000001914 filtration Methods 0.000 title claims abstract description 77
- 239000010865 sewage Substances 0.000 title claims abstract description 60
- 238000004140 cleaning Methods 0.000 title claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 230000008859 change Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- 230000007246 mechanism Effects 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 15
- 238000004075 wastewater filtration Methods 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 8
- 239000002351 wastewater Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 description 21
- 239000007787 solid Substances 0.000 description 20
- 230000009471 action Effects 0.000 description 12
- 230000005484 gravity Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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
- B01D29/01—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 flat filtering elements
- B01D29/03—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 flat filtering elements self-supporting
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to the technical field of sewage filtration, in particular to a self-cleaning sewage filtering device, which comprises a filtering pipeline, wherein a filter plate and a piston plate are arranged in the filtering pipeline at intervals, a containing cavity is formed between the filter plate and the piston plate, the containing cavity is provided with a first one-way valve, the containing cavity is divided into a first cavity and a second cavity by the first one-way valve, the piston plate moves in the filtering pipeline along the axial direction to change the volume of the first cavity so as to enable sewage to enter the first cavity and the second cavity through the filter plate, liquid in the second cavity is extruded by the first one-way valve to be backflushed by the filter plate, the filter plate is flushed once after being filtered, the cleaned time interval of the filter plate is very short, the filter plate can be kept in a clean state all the time, and the filtering efficiency of the self-cleaning sewage filtering device is remarkably improved by keeping the clean state of the filter plate, so that the filtering effect of the self-cleaning sewage filtering device is improved.
Description
Technical Field
The invention relates to the technical field of sewage filtration, in particular to a self-cleaning sewage filtration device.
Background
The sewage treatment station is used for treating production and domestic sewage, reaches the specified emission standard, and is an important facility for protecting the environment. Often use filter equipment to carry out preliminary treatment to sewage, filter equipment's filter screen is easy to block up when using, need clean the filter screen in order to guarantee the filter effect.
For example, chinese patent CN116059731a discloses a filtering device for solid impurities in domestic sewage, which comprises an upper filtering barrel, a lower filtering barrel and an adjusting component, wherein the adjusting component controls the opening and closing of the water inlets, water outlets and water outlets of the upper filtering barrel and the lower filtering barrel to adjust the flowing direction of the sewage, i.e. the adjusting component controls the water inlets and water outlets of the upper filtering barrel to be closed, and the water outlets are opened, so that the sewage enters through the water inlets of the lower filtering barrel and is discharged from the water outlets of the upper filtering barrel; after the adjusting component is in preset time, the water inlet and the water outlet of the lower filter barrel are controlled to be closed, the water outlet is opened, sewage enters from the water inlet of the upper filter barrel and is discharged from the water outlet of the lower filter barrel, and the flow direction of the sewage is changed so as to perform backflushing cleaning on the filter screens in the upper filter barrel and the lower filter barrel.
However, in the above-mentioned scheme, only after the preset time of the adjusting component is needed, the sewage flow direction can be changed to remove the backflushing filter screen, in this preset time, the filter screen is not cleaned, that is, the filter screen can be cleaned only after a preset time, and the filter effect of the filter screen at this time is poor compared with the filter screen after cleaning. Meanwhile, the washed impurities are not collected after being directly discharged, and pollution to the environment can be caused.
Disclosure of Invention
Based on the above, it is necessary to provide a self-cleaning sewage filtering device aiming at the problems of longer time interval of cleaning the current filter screen and poor filtering effect of the filter plate.
The above purpose is achieved by the following technical scheme:
a self-cleaning sewage filtration device comprising:
a filter tube;
the filter mechanism comprises a piston plate and a filter plate, the filter plate and the piston plate are arranged in the filter pipeline at intervals, and a containing cavity is formed between the piston plate and the filter plate;
a first one-way valve located between the piston plate and the filter plate, the first one-way valve dividing the receiving chamber into a first chamber and a second chamber, the first one-way valve allowing liquid to only enter the first chamber from the second chamber;
the water inlet pipeline is close to the filter plate, the water outlet pipeline is communicated with the first cavity, and a second one-way valve is arranged in the water outlet pipeline and enables liquid to enter the water outlet pipeline only from the first cavity;
the piston plate can move along the axial direction of the piston plate in the filter pipeline to change the volume of the first chamber so as to absorb water and drain water, and when the piston plate moves to be in contact with the first one-way valve, the piston plate can drive the first one-way valve to move along the axial direction of the piston plate so as to change the volume of the second chamber, and the volume of the second chamber is reduced so as to drain liquid in the second chamber to backflush the filter plate.
Further, two filtering mechanisms are arranged in the filtering pipeline at intervals, piston plates of the filtering mechanisms move alternately, and the water inlet pipeline is communicated with a cavity between the two filtering mechanisms.
Further, the filter tube has a curved section and a straight section, the straight section is distributed on both sides of the curved section and on the same vertical plane, two ports of the straight section are located above the curved section, and the curved section arches downward.
Further, a collecting box is arranged in the bending section.
Further, a sealing plate is arranged on the collecting box and can move along the axial direction of the bending section of the filtering pipeline, and the piston plate can drive the sealing plate to move so as to enable the collecting box to move.
Further, a limiting plate is arranged on the filter pipeline and can move on the filter pipeline along the radial direction of the filter pipeline so as to limit the position of the collecting box.
Further, the collection box comprises a first telescopic box and a second telescopic box, the second telescopic box is sleeved on the first telescopic box, and the first telescopic box and the second telescopic box are telescopic through a telescopic assembly so that the first telescopic box and the second telescopic box can slide relatively to change the volume of the collection box.
Further, the telescopic component comprises a telescopic pipe, the inside cavity of stiff end of telescopic pipe is provided with the third check valve in the stiff end, and the third check valve is with stiff end internal partition for first cavity and second cavity, has seted up the through-hole on the side of first cavity, and the second cavity is kept away from to the position of through-hole, is provided with the piston in the first cavity, is provided with the piston rod on the piston, and telescopic pipe is stretched out to the one end of piston rod, and piston rod and filter plate butt make the piston rod follow axial displacement in order to change the volume of first cavity in the first cavity, make the volume increase of second cavity and then promote the extension of telescopic end in the second cavity in the liquid extrusion of first cavity.
Further, the self-cleaning sewage filtering device further comprises a driving mechanism, and the driving mechanism can drive the piston plate to move in the accommodating cavity along the axial direction of the piston plate.
Further, the driving mechanism comprises a driving wheel and a cam, wherein the driving wheel can drive the cam to rotate, the cam is connected with the piston plate, and the rotation of the cam can enable the piston plate to reciprocate along the axial direction of the piston plate in the straight section of the filter pipeline.
The beneficial effects of the invention are as follows:
the invention provides a self-cleaning sewage filtering device, which is characterized in that a first one-way valve, a filter plate and a piston plate are arranged, so that the filter plate is washed once every time the filter plate is filtered, the cleaned time interval of the filter plate is very short, the filter plate can be kept in a cleaning state all the time, and the filtering efficiency of the self-cleaning sewage filtering device is obviously improved by keeping the filter plate in the cleaning state, so that the filtering effect of the self-cleaning sewage filtering device is improved.
According to the invention, through the symmetrically arranged filter pipes, the filter mechanisms are arranged in the two ends of the filter pipes, and the piston plates of the filter mechanisms alternately suck sewage to continuously suck the sewage into the filter pipes from the water inlet pipes, so that continuous filtration of the sewage is realized, and meanwhile, the filter plates can be sufficiently cleaned, so that the filtration efficiency is further improved.
According to the invention, the collection box is arranged, so that the collection box can move in the bending section of the filter pipeline along the axial direction of the bending section of the filter pipeline, further collect solid impurities backflushed from the filter plate, and reduce the filtering pressure of the filter plate.
According to the invention, through the arrangement of the first telescopic box and the second telescopic box, the volume of the collecting box can be changed from small to large, and more solid impurities can be collected.
Drawings
FIG. 1 is a schematic diagram of a self-cleaning sewage filter device according to an embodiment of the present invention;
FIG. 2 is a right side view of the self-cleaning wastewater filtration device provided in one embodiment of FIG. 1;
FIG. 3 is a cross-sectional view of the self-cleaning wastewater filtration device provided by the embodiment of FIG. 2, taken along line A-A;
FIG. 4 is an enlarged view of the portion X of the self-cleaning wastewater filtration device provided in one embodiment of FIG. 3;
FIG. 5 is a schematic diagram of a filtering mechanism of a self-cleaning sewage filtering device according to an embodiment of the present invention;
FIG. 6 is an exploded view of the filter mechanism of the self-cleaning wastewater filter apparatus provided in one embodiment in FIG. 5;
FIG. 7 is a schematic view of a collecting tank of a self-cleaning sewage filter device according to an embodiment of the present invention;
FIG. 8 is a front view of a self-cleaning wastewater filtration device provided in accordance with one embodiment of FIG. 1;
FIG. 9 is a cross-sectional view of the self-cleaning wastewater filtration device provided by the embodiment of FIG. 8, taken along line B-B;
FIG. 10 is a right side view of the self-cleaning wastewater filtration device provided in one embodiment of FIG. 1;
FIG. 11 is a cross-sectional view of the self-cleaning wastewater filtration device provided in one embodiment of FIG. 10, taken along line C-C;
FIG. 12 is a schematic view of a telescopic assembly of a self-cleaning sewage filter device according to an embodiment of the present invention;
FIG. 13 is a cross-sectional view of the telescoping assembly of the self-cleaning wastewater filtration device provided by one embodiment of FIG. 12, taken along D-D.
Wherein:
100. a frame; 110. a limit groove; 120. a spring channel; 130. sealing grooves;
200. a driving mechanism; 210. a driving wheel; 220. a cam; 230. a belt; 240. a connecting rod;
300. a filtering mechanism; 310. a filter tube; 311. a filter plate; 320. a water inlet pipe; 330. a water outlet pipe; 340. a piston plate; 350. a first one-way valve; 351. a first spring; 360. a second one-way valve; 370. a connecting plate; 380. a second spring; 390. a connecting block;
400. a limiting plate; 410. a first bump; 420. a second bump; 430. a limiting block;
500. a collection box; 510. a first expansion tank; 511. a flange; 520. a second expansion tank; 521. a limit protrusion; 530. a limit bar; 540. a sealing plate; 550. a movable plate;
600. a telescoping assembly; 610. a telescopic tube; 620. a telescoping end; 630. a piston rod; 640. a through hole; 650. a third one-way valve; 660. a first cavity; 670. a second cavity.
Detailed Description
The present invention will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
A self-cleaning sewage filter device provided herein is described below with reference to fig. 1-13.
A self-cleaning sewage filtering device is suitable for filtering solid impurities in liquid, particularly suitable for filtering sewage, and comprises a frame 100, wherein a filtering pipeline 310 is arranged on the frame 100, and the filtering pipeline 310 is used for filtering the sewage. Be provided with inlet channel 320 on the filter tube 310, sewage filters in entering filter tube 310 through inlet channel 320, be provided with filter mechanism 300 in the filter tube 310, filter mechanism 300 includes filter plate 311 and piston plate 340, filter plate 311 and piston plate 340 all are located filter tube 310, and filter plate 311 and piston plate 340 interval set up in filter tube 310, form between filter plate 311 and the piston plate 340 and hold the chamber, when piston plate 340 moves along the axial of filter tube 310 in filter tube 310, the volume of holding the chamber can change, and then make the pressure in holding the chamber change, when piston plate 340 moves to the direction of keeping away from filter plate 311, the volume in holding the chamber increases, hold the intracavity and form the negative pressure in order to inhale filter tube 310 with sewage from inlet channel 320, because filter plate 311's filtration effect, solid impurities in the sewage are kept apart in holding the chamber outside, the liquid that is filtered enters into and holds the chamber.
A first check valve 350 is disposed between the filter plate 311 and the piston plate 340, the first check valve 350 divides the accommodating chamber into a first chamber and a second chamber, the first chamber and the second chamber are distributed along the axial direction of the filter pipe 310, and one side close to the piston plate 340 is the first chamber, and one side close to the filter plate 311 is the second chamber. The first one-way valve 350 only allows one-way flow of the liquid or gas, i.e. the first one-way valve 350 only allows liquid or gas to enter the first chamber from the second chamber, neither gas nor liquid in the first chamber can enter the second chamber. Be provided with outlet conduit 330 on the filter tube 310, outlet conduit 330 is used for discharging the liquid after filtering out filter tube 310, outlet conduit 330 intercommunication first cavity is provided with second check valve 360 in the outlet conduit 330, second check valve 360 can only make liquid enter into outlet conduit 330 from first cavity, when piston plate 340 moves to the direction that is close to filter plate 311, the volume of first cavity reduces, liquid in the first cavity is extruded, and then makes liquid enter into outlet conduit 330 through second check valve 360 in order to discharge the liquid after filtering.
The first check valve 350 can also axially move along the filter pipeline 310 in the filter pipeline 310, a first spring 351 is arranged between the first check valve 350 and the filter plate 311, and when the first check valve 350 moves towards the direction close to the filter plate 311, the first spring 351 can be compressed, so that the volume of the second chamber is reduced, and liquid in the second chamber backflushes the filter plate 311, and the filter plate 311 can be cleaned. Specifically, the first check valve 350 moves along the axial direction of the filter pipe 310 under the action of the piston plate 340, the piston plate 340 continuously moves after all the liquid in the first chamber is extruded, the piston plate 340 abuts against the first check valve 350 to drive the first check valve 350 to move towards the direction close to the filter plate 311, and since the cavity between the first check valve 350 and the piston plate 340 is airtight, the liquid cannot pass through the first check valve 350 in the process of approaching the piston plate 340, so that the liquid in the second chamber is extruded by the first check valve 350 to recoil the filter plate 311. When the piston plate 340 moves in a direction away from the filter plate 311, the first check valve 350 also moves in a direction away from the filter plate 311 under the action of the first spring 351 and then resets, at this time, the volume of the second chamber increases and then the filtered liquid is sucked into the second chamber, and as the piston plate 340 continues to move in a direction away from the filter plate 311, the volume of the first chamber increases, negative pressure is formed, the filtered liquid enters the first chamber from the second chamber, and the second chamber continues to suck the liquid. The piston plate 340 moves in a direction approaching the filter plate 311 to discharge the liquid in the first chamber, and the continued movement drives the first check valve 350 to move to discharge the liquid in the second chamber, thereby backflushing the filter plate 311, so that the circulation is realized.
The filter plate 311 is washed once through the first check valve 350, the filter plate 311 and the piston plate 340, that is to say, the time interval between the filter plate 311 being cleaned is very short, the filter plate 311 can be kept in a clean state all the time, and the filtering efficiency of the self-cleaning sewage filtering device is obviously improved by keeping the filter plate 311 in a clean state, so that the filtering effect is improved.
In a further embodiment, as shown in fig. 3, the filter tube 310 has curved sections and straight sections, the straight sections being distributed on both sides of the curved sections and lying in the same vertical plane, the ports of the straight sections being upwardly facing, the curved sections being downwardly arched, i.e. the filter tube 310 being "V" or "U" shaped. The water inlet pipe 320 is disposed on the convex surface of the curved section of the filter pipe 310. The two straight sections of the filter pipe 310 are provided with the above-mentioned filter structure, and the piston plates 340 in the two straight sections move synchronously, but the moving directions are different, and the water inlet pipe 320 communicates with the cavity between the two filter plates 311. When the left piston plate 340 moves in a direction toward the filter plate 311, the right piston plate 340 moves in a direction away from the filter plate 311; when the left piston plate 340 moves away from the filter plate 311, the right piston plate 340 moves toward the filter plate 311. Through the alternate motion of the piston plate 340, the sewage can be continuously sucked into the water inlet pipeline 320, the two water outlet pipelines 330 alternately discharge water, and through the alternate motion of the two filtering mechanisms 300, the self-cleaning sewage filtering device realizes the continuous filtering of the sewage, and meanwhile, the filter plate 311 can be fully cleaned, so that the filtering efficiency is further improved.
Meanwhile, as the two straight sections are positioned at two sides of the bending end and have the height, the solid impurities on the filter plate 311 have gravity and the backflushing function, the solid impurities are easier to separate from the filter plate 311, so that the filter plate 311 has better cleaning effect.
In a further embodiment, a collecting box 500 is disposed in the filtering pipeline 310, two ends of the collecting box 500 are hinged with a movable plate 550, a plurality of sieve holes are formed in the movable plate 550, a torsion spring (not shown in the figure) is disposed at the hinged end of the movable plate 550, and a blocking block is further disposed on the collecting box 500 and blocks the movable plate 550 from opening the collecting box 500 outwards. The torsion spring is in an initial state to close the movable plate 550. Specifically, the collection box 500 is slidably disposed in the curved section of the filter tube 310, and the collection box 500 is shaped to fit the curved section of the filter tube 310, and the collection box 500 can move in the axial direction of the curved section of the filter tube 310 to receive the solid impurities back-flushed from the left or right filter plates 311. When the collection tank 500 approaches the left filter plate 311, the movable plate 550 at the left side of the collection tank 500 is opened against the acting force of the torsion spring under the action of the backflushing water flow, solid impurities enter the collection tank 500, and the movable plate 550 at the right side is closed; similarly, when the collection box 500 moves to the right, the right movable plate 550 is opened against the force of the torsion spring by the backflushing water flow, and the left movable plate 550 is closed.
It should be noted that, the collecting box 500 is driven by the piston plate 340, specifically, the filter tube 310 is provided with a limiting groove 110, the limiting groove 110 is parallel to the axis of the bending section of the filter tube 310, the collecting box 500 is provided with a limiting bar 530, the limiting bar 530 is located in the limiting groove 110, and the collecting box 500 slides along the limiting groove 110. As shown in fig. 9, the left side of the filtering pipe 310 is further provided with a sealing groove 130, the left side of the collecting box 500 is connected with a sealing plate 540, the sealing plate 540 slides in the sealing groove 130, the sealing plate 540 can play a sealing role, and sewage is prevented from flowing out of the filtering pipe 310 when the sealing plate 540 slides. The sealing plate 540 is provided with a connection block 390. The piston plate 340 is kept away from the fixed connecting plate 370 that is provided with on the one side of filter plate 311, and the connecting plate 370 sets up with the piston plate 340 is perpendicular, and the axial distribution of filter tube 310 is followed to connecting plate 370, and the connecting plate 370 is kept away from on the one end of piston plate 340 fixedly connected with second spring 380, and second spring 380 is connected with the connecting block 390 of collection box 500, and as shown in fig. 9, spacing groove 110 left side is provided with spring passageway 120, and second spring 380 is located spring passageway 120. When the left piston plate 340 moves in a direction away from the filter plate 311, the left connecting plate 370 can be driven to move so that the left second spring 380 can be stretched, and simultaneously, the right piston plate 340 moves in a direction close to the filter plate 311 so that the right connecting plate 370 can be driven to move so that the right second spring 380 can be compressed. It should be noted that, as shown in fig. 5 and 6, when the left piston plate 340 moves away from the filter plate 311, the right piston plate 340 moves toward the filter plate 311, and the piston plate 340 drives the collecting tank 500 to move toward the filter plate 311, so that the sewage filtering is not affected during the movement of the collecting tank 500, because there is a gap between the collecting tank 500 and the filter pipe 310, and the sewage filtering is not affected due to the tight contact between the collecting tank 500 and the filter pipe 310.
When the collection tank 500 is moved to a preset position (the preset position means that the collection tank 500 is moved to a position close to the filter plate 311 in the bent section of the filter pipe 310), a stopper 430 is provided at a position close to the filter plate 311, and when the collection tank 500 is moved to a position in contact with the stopper 430, the collection tank 500 is stopped by the stopper 400, and the collection tank 500 at this time is no longer moved together with the piston plate 340, and the piston plate 340 continues to move so that the filtered liquid fills the first and second chambers. The piston plate 340 moves towards the direction close to the filter plate 311 to squeeze the first chamber, so that the volume of the first chamber is reduced to discharge filtered liquid, the piston plate 340 continues to move, the piston plate 340 abuts against the first one-way valve 350 to drive the first one-way valve 350 to move towards the direction close to the filter plate 311, and then the second chamber is squeezed, so that liquid in the second chamber backflushes the filter plate 311, and solid impurities backflushed on the filter plate 311 open the movable plate 550 to enter the collecting tank 500 under the action of gravity and water flow. As the piston plate 340 continues to move in a direction approaching the filter plate 311, the piston plate 340 pushes the limiting plate 400 to release the limit of the collecting tank 500 by the limiting plate 400.
When the left piston plate 340 moves in a direction approaching the filter plate 311, the collection tank 500 is restrained, so that the second spring 380 of the left connection plate 370 is always compressed, and at the same time, the right piston plate 340 moves in a direction separating from the filter plate 311, and the second spring 380 of the right connection plate 370 is always stretched. When the limiting plate 400 is not limited any more, the collecting box 500 moves towards the filter plate 311 close to the right under the action of the pressure of the second spring 380 on the left side and the pulling force of the second spring 380 on the right side until the collecting box 500 moves to the preset position on the right side and is limited by the limiting plate 400 on the right side, and the first chamber and the second chamber on the right side are filled with filtered liquid to prepare the filter plate 311 on the right side for backflushing, so that the collecting box 500 moves to the preset position on the right side and then collects the solid impurities backflushed on the filter plate 311 on the right side.
Specifically, as shown in fig. 3 and 4, the limiting plate 400 is provided with a first protrusion 410 and a second protrusion 420, the first protrusion 410 and the second protrusion 420 are located on the same plane of the limiting plate 400 and perpendicular to the limiting plate 400, the limiting plate 400 is disposed on the outer peripheral surface of the filter pipe 310, and the first protrusion 410 and the second protrusion 420 are inserted into the filter pipe 310. The other surface of the limiting plate 400 is provided with a third spring, the third spring is initially in an original length state, the limiting plate 400 can move along the radial direction of the filter pipe towards the direction far away from the filter pipeline 310 so as to compress the third spring, and the limiting plate 400 can also move towards the direction close to the filter pipeline 310 under the action of the third spring. In the initial state, the first protrusion 410 extends into the first chamber, the second protrusion 420 extends into the curved section of the filter tube 310, and the second protrusion 420 is close to the filter plate 311. The surface of the first bump 410 is smooth or has two inclined surfaces along the axial direction of the filter pipe 310, the second bump 420 has two surfaces along the axial direction of the filter pipe 310, the surface close to the filter plate 311 is a plane, that is, the surface parallel to the filter plate 311, and the surface far from the filter plate 311 is an inclined surface. The flange 511 is disposed at one end of the left side of the collecting box 500, the limit protrusion 521 is disposed at one end of the right side of the collecting box 500, when the collecting box 500 moves toward the direction approaching the left filter plate 311, the flange 511 contacts with the inclined surface of the second protrusion 420, the second protrusion 420 is pushed out of the curved section, and the collecting box 500 is not affected to approach the filter plate 311, when the flange 511 passes the second protrusion 420, the limit plate 400 is reset under the action of the third spring, that is, the second protrusion 420 is reset, the plane of the second protrusion 420 contacts with the flange 511, and the collecting box 500 is further limited to move toward the direction far from the left filter plate 311.
When the limit of the second bump 420 needs to be released, the piston plate 340 passes through the first bump 410, and the piston plate 340 is in sliding contact with the inclined surface of the first bump 410 to eject the first bump 410, so that the limit plate 400 moves along the radial direction of the filter pipe 310 in the direction away from the filter pipe 310, and the limit plate 400 drives the second bump 420 to separate from the curved section of the filter pipe 310, so that the collecting box 500 is no longer limited by the second bump 420. Similarly, since the right limiting plate 400 and the left limiting plate 400 are symmetrically arranged, the structure of the right limiting plate 400 is identical to that of the left limiting plate 400, and the matching of the right limiting plate 400 and the limiting boss 521 is identical to that of the left limiting plate 400 and the flange 511, so that detailed description is omitted.
In a further embodiment, the collecting box 500 includes a first telescopic box 510 and a second telescopic box 520, the second telescopic box 520 is sleeved on the first telescopic box 510, the first telescopic box 510 and the second telescopic box 520 can relatively move, specifically, the outer peripheral wall of the first telescopic box 510 and the outer peripheral wall of the second telescopic box 520 are in sliding contact, and the shapes of the first telescopic box and the second telescopic box are mutually adapted. In the initial state, the first bellows 510 is retracted into the second bellows 520, the volume of the collection tank 500 is minimized, and a small amount of solid impurities can be contained, and when the first bellows 510 extends out of the second bellows 520, the volume of the collection tank 500 is increased, and more solid impurities can be contained.
Specifically, the first bellows 510 and the second bellows 520 implement a telescopic function through the telescopic assembly 600, the telescopic assembly 600 includes a telescopic tube 610, a fixed end of the telescopic tube 610 is fixedly disposed at one end of the first bellows 510, and a telescopic end 620 of the telescopic tube 610 is fixedly disposed at one end of the second bellows 520. In the initial state, the expansion end 620 of the expansion pipe 610 is in the shortened state, that is, the volume of the collection box 500 is in the minimum state, and when the expansion end 620 of the expansion pipe 610 is extended, the first expansion box 510 and the second expansion box 520 are relatively moved, so that the volume of the collection box 500 is increased.
The fixed end of the telescopic tube 610 is internally provided with a first cavity 660 and a second cavity 670, the first cavity 660 and the second cavity 670 are separated by a third one-way valve 650, the third one-way valve 650 enables liquid in the first cavity 660 to enter the second cavity 670, and liquid in the second cavity 670 cannot enter the first cavity 660. The through hole 640 is formed in the side wall of the first cavity 660, the through hole 640 is far away from the second cavity 670, the telescopic pipe 610 is located in the filtering pipeline 310, liquid in the filtering pipeline 310 enters the first cavity 660 through the through hole 640, a piston is arranged in the first cavity 660, the piston is connected with the piston rod 630, the piston rod 630 drives the piston to squeeze the liquid in the first cavity 660, the through hole 640 is far away from the position of the third one-way valve 650, when the piston does not pass through the through hole 640, the liquid in the first cavity 660 is discharged through the through hole 640, when the piston passes through the through hole 640, a closed cavity is formed between the first cavity 660 and the piston, the liquid in the first cavity 660 enters the second cavity 670 through the third one-way valve 650 after the piston continues to move, the volume of the second cavity 670 is increased, and the telescopic pipe 610 stretches at the telescopic end 620.
The telescopic pipe 610 is stretched out to the one end of piston rod 630, the cover is equipped with the fourth spring on the piston rod 630, during the initial state, the fourth spring is in former length state, when collecting box 500 is driven by piston plate 340, the one end of piston rod 630 can be with filter plate 311 butt, and then make piston rod 630 shorten, thereby squeeze the liquid in the first cavity 660 into in the second cavity 670, make the telescopic end 620 extension a distance of telescopic link, when collecting box 500 is not reset by limiting plate 400's spacing, piston rod 630 extends under the effect of fourth spring and resets, when collecting box 500 moves to piston rod 630 and filter plate 311 butt again, the extension end of telescopic pipe 610 extends a distance again, with this circulation, every time collecting box 500 collects solid impurity, the extension end of telescopic pipe 610 just extends a distance, and then the volume increase of collecting box 500 can collect more solid impurity, along with the increase of live time, can avoid collecting box 500 volume little and the condition that leads to collecting box 500 can not collect solid impurity.
It should be noted that, there are many structures for realizing the relative movement of the first bellows 510 and the second bellows 520, not only limited to the above-mentioned structure, but also other structures, such as an electrically controlled telescopic cylinder, may be used, and a time interval may be set, and after a certain time interval, a certain distance may be extended, so as to realize the relative movement of the first bellows 510 and the second bellows 520, thereby increasing the volume of the collecting box 500. Of course, other configurations are possible and are not listed here.
In a further embodiment, the self-cleaning wastewater filtration device further comprises a drive mechanism 200, the drive mechanism 200 being capable of driving the two piston plates 340 within the filtration conduit 310.
Specifically, as shown in fig. 1 and 3, the driving mechanism 200 includes a driving wheel 210 and a cam 220, the driving wheel 210 is rotatably disposed on the frame 100, the cam 220 is also rotatably disposed on the frame 100, two cams 220 are respectively disposed on two sides of the driving wheel 210, and a belt 230 is wound between the cam 220 and the driving wheel 210, that is, two belts 230 are totally disposed on the driving wheel 210, and the two belts 230 are respectively wound on the two cams 220. When the driving wheel 210 is driven by a driving source (not shown), the driving wheel 210 rotates the two cams 220 in synchronization. The two protrusions on the cam 220 are symmetrically arranged, namely symmetrically arranged relative to the axis of the driving wheel 210, the protrusions are movably connected with a connecting rod 240, the other end of the connecting rod 240 is hinged with the piston plate 340, and when the cam 220 rotates, the cam 220 can drive the piston plate 340 to move along the axial direction of the filter pipeline 310 in the straight section of the filter pipeline 310. The protrusion on the cam 220 on the other side is also connected with a connecting rod 240, and the specific structure is the same as that on the left side, and detailed description is omitted. When the driving wheel 210 drives the two cams 220 to rotate, the two piston plates 340 move in the straight section of the filter tube 310 to realize the alternate movement of the two piston plates 340, i.e. when the left piston plate 340 moves away from the left filter plate 311, the right piston plate 340 moves toward the right filter plate 311, and vice versa.
It should be noted that, the driving mechanism 200 capable of driving the two piston plates 340 to alternately move is not limited to the above structure, and may be two telescopic cylinders, specifically, the fixed ends of the two telescopic cylinders are fixedly disposed on the frame 100, the two telescopic cylinders are distributed along the axial direction of the straight section of the filter pipeline 310, the telescopic ends 620 of the two telescopic cylinders are fixedly connected with the piston plates 340, and when one telescopic cylinder is set to extend, the other telescopic cylinder is shortened, so that the alternate movement of the piston plates 340 can be realized. Of course, other driving mechanisms 200 are also possible, and are not described in detail herein.
The following describes a specific working procedure of a self-cleaning sewage filtering device provided in the present application in combination with the above embodiment:
the water inlet pipe 320 of the self-cleaning sewage filtering device is put into a sewage pool, a driving source (not shown in the figure) is started, the driving source drives the driving wheel 210 to rotate, the driving wheel 210 drives the cams 220 on two sides, the cams 220 drive the piston rods 630 to move, and then the piston plate 340 moves back and forth along the axial direction of the filtering pipeline 310 in the straight section of the filtering pipeline 310 under the action of the piston rods 630.
When the left piston plate 340 moves in a direction away from the filter plate 311, the volume of the first chamber between the piston plate 340 and the first check valve 350 increases to form negative pressure, sewage is filtered by the filter plate 311 and then enters the second chamber, and then enters the first chamber through the first check valve 350 between the second chamber and the first chamber, while the right piston plate 340 moves in a direction approaching the filter plate 311, and air in the first chamber is discharged through the water outlet pipe 330 because the first check valve 350 cannot allow air or liquid to enter the second chamber from the first chamber. At the same time, the connection plates 370 on the two piston plates 340 move in synchronization with the piston plates 340, and the collection tank 500 is connected to the left connection plate 370 through the second springs 380, so that the collection tank 500 moves in a direction approaching the left filter plate 311. When the piston rod 630 on the first expansion tank 510 abuts against the filter plate 311 on the left side, the piston rod 630 contracts inwards, so that the liquid in the first cavity 660 in the expansion tank 610 is extruded, the liquid in the first cavity 660 enters into the second cavity 670, the expansion end 620 of the expansion tank 610 extends for a certain distance, and the volume of the collection tank 500 increases a little. The collecting box 500 continues to move to the left, and after the collecting box 500 moves to the preset position, the left limit plate 400 limits the collecting box 500, i.e., the collecting box 500 does not move any more. The left piston plate 340 extrudes the liquid in the first chamber into the water outlet pipeline 330, the left piston plate 340 continues to move towards the direction close to the filter plate 311, the left piston plate 340 is abutted with the left first one-way valve 350, the left first one-way valve 350 is driven to move towards the direction close to the filter plate 311 to extrude the liquid in the second chamber, the liquid in the second chamber backflushes the filter plate 311, the filter plate 311 is cleaned, solid impurities falling after backflushing on the filter plate 311 can open the movable plate 550 at the left side of the collecting box 500 under the action of gravity and backflushing water flow, and the solid impurities enter the collecting box 500.
Meanwhile, the right piston plate 340 moves in a direction away from the filter plate 311, so that negative pressure is formed in the right first chamber, and sewage is sucked into the right second chamber from the water inlet pipeline 320 after passing through the filter plate 311, and then enters the right first chamber through the first one-way valve 350 between the right second chamber and the right first chamber. The connection plate 370 on the right stretches the second spring 380 so that the second spring 380 on the right is in a stretched state. The left piston plate 340 continues to move in a direction approaching the filter plate 311, and when the left piston plate 340 contacts the inclined surface of the first protrusion 410 of the limiting plate 400, the limiting plate 400 moves such that the second protrusion 420 no longer limits the collecting box 500, i.e., the collecting box 500 is no longer limited by the limiting plate 400, the collecting box 500 moves toward the filter plate 311 approaching the right under the action of the right second spring 380, and the collecting box 500 moves to a preset position on the right and is limited by the limiting plate 400 on the right.
Then, the left piston plate 340 starts to move towards the direction away from the filter plate 311, the right piston plate 340 starts to move towards the direction close to the filter plate 311, the right piston plate 340 starts to press the right first chamber, so that liquid is discharged from the right water outlet pipeline 330, the right piston plate 340 continues to move towards the direction close to the filter plate 311, the right piston plate 340 abuts against the right first one-way valve 350 to drive the right first one-way valve 350 to move towards the filter plate 311, the right first one-way valve 350 moves towards the filter plate 311 to press the second chamber, so that liquid in the second chamber can back flush the right filter plate 311, and solid impurities back flushed on the right filter plate 311 enter the collecting tank 500 under the action of gravity and back flush water flow. The right piston plate 340 continues to move, so that the right piston plate 340 abuts against the inclined surface of the first protrusion 410 of the right limiting plate 400, and the right limiting plate 400 moves so that the second protrusion 420 of the limiting plate 400 no longer limits the collecting box 500, that is, the right limiting plate 400 no longer limits the movement of the collecting box 500, and the collecting box 500 moves to the left preset position under the action of the second spring 380, is limited by the left limiting plate 400, and then collects solid impurities on the left filter plate 311. With this cycle, the piston plates 340 at the left and right sides alternately move so that the filtering pipes 310 at the left and right sides can continuously filter the sewage, and the filter plate 311 is cleaned once, so that the filter plate 311 can always maintain high filtering efficiency.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. A self-cleaning sewage filtration device, comprising:
a filter tube; the filter pipeline is in a V shape or a U shape, the filter pipeline is provided with a bent section and a straight section, the straight sections are distributed on two sides of the bent section and are positioned on the same vertical plane, two ports of the straight section are positioned above the bent section, the ports of the straight section face upwards, and the bent section is arched downwards;
the filter mechanism comprises a piston plate and a filter plate, the filter plate and the piston plate are arranged in the filter pipeline at intervals, and a containing cavity is formed between the piston plate and the filter plate;
the first one-way valve is positioned between the piston plate and the filter plate, the first one-way valve can axially move along the filter pipeline in the filter pipeline, the first one-way valve divides the accommodating cavity into a first cavity and a second cavity, the first cavity is positioned at one side close to the piston plate, the second cavity is positioned at one side close to the filter plate, and the first one-way valve enables liquid to only enter the first cavity from the second cavity;
the water inlet pipeline is arranged on the convex surface of the bending section of the filter pipeline, the water inlet pipeline is close to the filter plate, the water outlet pipeline is communicated with the first cavity, and a second one-way valve is arranged in the water outlet pipeline and enables liquid to enter the water outlet pipeline only from the first cavity;
the piston plate can move along the axial direction of the piston plate in the filter pipeline to change the volume of the first chamber so as to absorb water and drain water, when the piston plate moves to be in contact with the first one-way valve, the piston plate can drive the first one-way valve to move along the axial direction of the piston plate so as to change the volume of the second chamber, the volume of the second chamber is reduced so as to discharge liquid in the second chamber to recoil the filter plate, the filter mechanisms are arranged in the two straight sections, the piston plates in the two straight sections synchronously move, but the moving directions are different, the piston plates of the filter mechanisms alternately move, the water inlet pipeline is communicated with a cavity between the two filter mechanisms, sewage can be continuously sucked into the water inlet pipeline through the alternate movement of the piston plate, the two water outlet pipelines alternately discharge water, and the self-cleaning sewage filter device realizes the continuous filtration of the sewage.
2. A self-cleaning sewage filtration device according to claim 1, wherein a collection tank is provided within the curved section.
3. The self-cleaning sewage filter device according to claim 2, wherein the collecting box is provided with a sealing plate, the sealing plate can move along the axial direction of the bending section of the filter pipeline, and the piston plate can drive the sealing plate to move so as to enable the collecting box to move.
4. A self-cleaning sewage filter device as claimed in claim 3, wherein the filter tube is provided with a stop plate which is movable radially of the filter tube over the filter tube to limit the position of the collection box.
5. The self-cleaning sewage filtering device according to claim 4, wherein the collection box comprises a first telescopic box and a second telescopic box, the second telescopic box is sleeved on the first telescopic box, and the first telescopic box and the second telescopic box are telescopic through a telescopic assembly so that the first telescopic box and the second telescopic box can slide relatively to change the volume of the collection box.
6. The self-cleaning sewage filtering device according to claim 5, wherein the telescopic component comprises a telescopic pipe, the fixed end of the telescopic pipe is hollow, a third one-way valve is arranged in the fixed end and divides the inside of the fixed end into a first cavity and a second cavity, a through hole is formed in the side face of the first cavity, the position of the through hole is far away from the second cavity, a piston is arranged in the first cavity, a piston rod is arranged on the piston, one end of the piston rod extends out of the telescopic pipe, the piston rod is abutted with the filter plate so that the piston rod moves in the first cavity along the axial direction to change the volume of the first cavity, and liquid in the first cavity is extruded into the second cavity so that the volume of the second cavity is increased to push the telescopic end to extend.
7. The self-cleaning wastewater filter device of claim 1, further comprising a drive mechanism capable of driving the piston plate to move axially within the containment chamber.
8. The self-cleaning wastewater filtration device of claim 7 wherein the drive mechanism comprises a drive wheel and a cam, the drive wheel capable of driving the cam into rotation, the cam coupled to a piston plate, the cam rotation capable of reciprocating the piston plate in its axial direction within a straight section of the filtration conduit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311359739.7A CN117085391B (en) | 2023-10-20 | 2023-10-20 | Self-cleaning sewage filtering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311359739.7A CN117085391B (en) | 2023-10-20 | 2023-10-20 | Self-cleaning sewage filtering device |
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| CN117085391A CN117085391A (en) | 2023-11-21 |
| CN117085391B true CN117085391B (en) | 2024-01-12 |
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| EP0554237A1 (en) * | 1992-01-31 | 1993-08-04 | BACHER, Helmut | Filtration device for contaminated fluids and method of operation |
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| CN113877267A (en) * | 2021-10-31 | 2022-01-04 | 盖明秀 | Sewage treatment filter screen backflushing device |
| CN115301020A (en) * | 2022-10-11 | 2022-11-08 | 南通茂福节能环保科技有限公司 | Smoke dust filtering device for waste heat recovery |
| CN116785770A (en) * | 2023-08-29 | 2023-09-22 | 上海市嘉定区南翔医院 | Chinese-medicinal material active ingredient extraction element |
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| EP0554237A1 (en) * | 1992-01-31 | 1993-08-04 | BACHER, Helmut | Filtration device for contaminated fluids and method of operation |
| KR200416438Y1 (en) * | 2006-02-23 | 2006-05-16 | 하이팜텍주식회사 | Pump Dispenser Machine using for the instrument of liquids |
| CN113457238A (en) * | 2021-08-05 | 2021-10-01 | 盛金平 | Movable type through-stop valve of filter press |
| CN113877267A (en) * | 2021-10-31 | 2022-01-04 | 盖明秀 | Sewage treatment filter screen backflushing device |
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