CN102921231B - Fully-automatic back-flushing type self-cleaning filter - Google Patents
Fully-automatic back-flushing type self-cleaning filter Download PDFInfo
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- CN102921231B CN102921231B CN201210451573.7A CN201210451573A CN102921231B CN 102921231 B CN102921231 B CN 102921231B CN 201210451573 A CN201210451573 A CN 201210451573A CN 102921231 B CN102921231 B CN 102921231B
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- cavity
- pivoted arm
- filter screen
- thin cylinder
- rotary arm
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Abstract
The invention discloses a fully-automatic back-flushing type self-cleaning filter. An inner cavity of a barrel body is divided into an upper cavity, a middle cavity and a lower cavity by an upper separating plate and a lower separating plate. In the middle cavity, two ends of a middle diversion pipe are respectively connected with big ladder center holes in the upper separating plate and the lower separating plate in sealed mode, and two ends of each of eight thin cylinder filter screens are respectively connected with eight small ladder holes in the upper separating plate and the lower separating plate in sealed mode. A middle blow-off pipe is sleeved in the middle diversion pipe in non-contact mode. An upper rotary arm is arranged in the upper cavity, and a lower rotary arm is arranged in the lower cavity. The upper rotary arm and the lower rotary arm are respectively composed of a four-way connector, two elbow pipes which are symmetrically connected with the left end and the right end of the four-way connector, and sealing covers connected with lower end faces of the elbow pipes. The upper end of the middle blow-off pipe is connected with the lower end of the four-way connector of the upper rotary arm, and the lower end of the middle blow-off pipe is connected with the upper end of the four-way connector of the lower rotary arm. The spacing between the two sealing covers on the same rotary arm is equal to the diameter of a circumference where the eight small ladder holes are located. The upper end of the four-way connector of the upper rotary arm is fixedly connected with a rotary arm drive shaft driven by a stepping motor. The thin cylinder filter screens are back-flushed automatically so that the back-flushing effect is good.
Description
Technical field
The present invention relates to the filter in water treatment field, specifically a kind of full-automatic back washing formula self-cleaning filter.
Background technology
The self-cleaning process of back flush type self-cleaning filter, is to make intrasystem reverse fluid flow, by filter residue from screen surface rinse peel off, then emit, in filter screen conventionally without other device.Conventional back flush type self-cleaning filter structure has: the one, adopt the use separately in parallel of multiple filters, in the time that in running order filter need to clean, stop the work of this filter, start another one filter, its shortcoming is that cost, the system system of increase system is huge, automaticity is low, need manual cleaning, expend a large amount of manpower and materials simultaneously.The 2nd, adopt and open bypass import, change the water of import through the direction of filter screen, carry out back flush filter screen with unfiltered water, shortcoming be clean thoroughly, water consumption greatly, can not on-line cleaning.The 3rd, multiple filter elements are housed in filter cylinder and clean one by one, shortcoming is in the time that a filter element does not also complete thorough cleaning, the motor rotating continuously just drives and drives the pivoted arm turn-off cleaning, and causes cleaning thoroughly, water consumption is large.
Summary of the invention
The object of the invention is to: the shortcoming existing for above prior art, a kind of on-line automatic back flush type self-cleaning filter is proposed, automaticity is high, cost is low, water consumption is little, cleaning is thorough.
The technical solution used in the present invention is: comprise cylindrical shell, cylinder lumen is divided into epicoele, lumen, cavity of resorption with upper spacer and lower clapboard; The center of upper and lower dividing plate all has large ladder centre bore, along the circumferential direction go up 8 little shoulder holes are all evenly set; In lumen, the large ladder centre bore that middle mozzle two ends are tightly connected respectively on upper and lower dividing plate, the two ends of 8 thin cylinder filter screens 8 the little shoulder holes on upper and lower dividing plate that are tightly connected respectively, blow-off pipe in the middle of empty set in middle mozzle, middle blow-off pipe upper end extends in epicoele, and middle blow-off pipe lower end extends in cavity of resorption; In epicoele, be provided with pivoted arm, in cavity of resorption, be provided with lower pivoted arm, upper and lower pivoted arm all by four-way connection, symmetry be connected in two bend pipes at two ends, four-way connection left and right, the sealing shroud of bridge piece lower surface forms; Middle blow-off pipe upper end connects the four-way connection lower end of upper pivoted arm, and middle blow-off pipe lower end connects the four-way connection upper end of lower pivoted arm; Upper and lower pivoted arm is Face to face with respect to the Central Symmetry setting of lumen; The spacing of two sealing shrouds on same pivoted arm is the circle diameters at 8 little shoulder hole places; The upper end of the four-way connection of upper pivoted arm is fixedly connected with pivoted arm driving shaft, and pivoted arm driving shaft is driven by stepper motor; The four-way connection lower end of lower pivoted arm connects blowdown straight tube; On lumen sidewall, set out the mouth of a river, on cavity of resorption sidewall, water inlet is set.
Advantage of the present invention is:
1, the present invention utilizes the clear liquid self filtering out, and the thin cylinder filter screen of automatic backwash, does not need to pull down thin cylinder filter gauze cleaning, does not need separately to join purging system yet, and automaticity is high.
2, the present invention is equipped with how thin cylinder filter screens are worked simultaneously, cleans one by one every group of filter screen when recoil, and other filter screen, still in continuous filtration, can ensure the continuous supply of filtrate, continuous filtration.
3, when the present invention recoils, the same time is only cleaned two filter screens, accounts for 1/4th of whole filter screen quantity, is less than 5% of design discharge so consume liquid measure when blowdown, and consumption liquid measure is few, has reduced more than one times than traditional structure.
4, owing to being to arrange multiple thin cylinder filter screens in cylindrical shell of the present invention, take full advantage of vessel space, filter area is large, and effective filtration area can reach 3～5 times of inlet area, has increased by one times of left and right than traditional structure.
5, the present invention can make solid impurity be retained in surface and can not stop up gap, and the clear water that the water level of backwash simultaneously filters is good to dirt backwash effect.
6, stepper motor drives pivoted arm driving shaft to slowly run, and has moment of torsion large, reliability high, as the obstruction that meets accident, and when moment of torsion exceeds design maximum value, electrical protection systems autostop also sends alarm signal, can realize overload protection.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is front view of the present invention;
Fig. 2 is A-A cutaway view in Fig. 1;
Fig. 3 and Fig. 4 are the assembly stereograms of upper spacer 26 in Fig. 2, lower clapboard 29, thin cylinder filter screen 17;
Fig. 5 is the assembly stereogram of upper pivoted arm 19, lower pivoted arm 14, middle blow-off pipe 24 in Fig. 2;
In figure: 1. delivery port; 2. bearing; 3. blow-off pipe; 4. water inlet; 5. cylindrical shell; 6. flange; 7. blind flange; 9. shaft coupling; 10. stepper motor; 11. times stuffing-boxes; 12. times stuffing seals; 14. times pivoted arms; 17. thin cylinder filter screens; Mozzle in the middle of 18.; Pivoted arm on 19.; 20. pivoted arm driving shafts; Stuffing-box on 21.; Packing seal mechanism on 23.; Blow-off pipe in the middle of 24.; 25. epicoeles; 26. upper spacers; 27. differential pressure pickups; 28. lumens; 29. lower clapboards; 30. cavity of resorptions; 31. coarse strainers; 32. ellipse heads; 33. little shoulder holes; 34. large ladder centre bores; 36. coarse strainer guide collar; 37. sealing shrouds; 38. blowoff valves; 39. blowdown straight tubes;
Detailed description of the invention
As depicted in figs. 1 and 2, full-automatic back washing formula self-cleaning filter of the present invention comprises a columnar cylindrical shell 5, cylindrical shell 5 bottoms are fixedly supported on bearing 2, have water inlet 4 and delivery port 1 at the sidewall of cylindrical shell 5, water inlet 4 and delivery port 1 are distributed in the both sides of the axis of cylindrical shell 5, and water inlet 4 is below delivery port 1.Near water inlet 4 and delivery port 1 install differential pressure pickup 27, differential pressure pickup 27 connects controller, differential pressure pickup 27 can be contained in one with cylindrical shell 5 outer walls weld box in.The bottom nozzle of cylindrical shell 5 ellipse head 32 that is tightly connected, encapsulates with ellipse head 32.Blow-off pipe 3 stretches out from ellipse head 32 lower ends.The top ports of cylindrical shell 5 be tightly connected flange 6 and blind flange 7, encapsulate with flange 6 and blind flange 7.
Cylindrical shell 5 inner chambers are divided into three chambers by upper spacer 26 and lower clapboard 29, are respectively epicoele 25, lumen 28, cavity of resorption 30.Upper spacer 26 is identical with the structure of lower clapboard 29, and all level is fixedly connected on cylindrical shell 5 inwalls, and upper spacer 26 and lower clapboard 29 all seal with O type circle in junction with cylindrical shell 5 inwalls.
Upper spacer 26 center has large ladder centre bore 34, on upper spacer 26, along the circumferential direction go up and evenly have 8 little shoulder holes 33, the size in the large and small footpath of little shoulder hole 33 equals respectively external diameter, the internal diameter of thin cylinder filter screen 17, the external diameter of mozzle 18, the size of internal diameter in the middle of the large and small footpath of large ladder centre bore 34 equals respectively.Large ladder centre bore on lower clapboard 29 is identical with upper spacer 26 with the structure of little shoulder hole, and upper spacer 26 and large ladder centre bore on lower clapboard 29 and little shoulder hole position corresponding.
In lumen 28, the two ends of middle mozzle 18 are fixedly connected on respectively the large ladder centre bore 34 of upper spacer 26 and lower clapboard 29, all seal with O RunddichtringO in junction.The two ends of 8 thin cylinder filter screens 17 are respectively connected in 8 little shoulder holes 33 on upper spacer 26, lower clapboard 29, all seal with O RunddichtringO in junction.Like this, middle mozzle 18 is coaxial with cylindrical shell 5, and 8 thin cylinder filter screens 17 are uniform along middle mozzle 18 surroundings, and the central shaft of 8 thin cylinder filter screens 17 is all parallel with middle mozzle 18.Blow-off pipe 24 in the middle of the interior empty set of middle mozzle 18, the upper end of middle blow-off pipe 24 extend in epicoele 25, and the lower end of middle blow-off pipe 24 extend in cavity of resorption 32.Delivery port 1 is arranged on lumen 28 sidewall locations.
Pivoted arm 19 is set epicoele 25 is interior, upper pivoted arm 19 is that four-way connection, two bend pipes and sealing shroud 37 form, four-way connection in middle, two bend pipe symmetries are connected in two ends, four-way connection left and right, two bend pipe lower surfaces are by a sealing shroud 37 of the each connection of screw thread, intermediate distance between two sealing shrouds 37 on two bend pipes is the diameter of the circumference at 8 little shoulder hole 33 places on upper spacer 26 and lower clapboard 29, the internal diameter size of sealing shroud 37 equals the path of little shoulder hole 33, ensures that sealing shroud 37 can cover little shoulder hole 33 completely in the time of backwash.The upper end of middle blow-off pipe 24 connects the four-way connection lower end of upper pivoted arm 19.
Lower pivoted arm 14 is set cavity of resorption 32 is interior, the structure of lower pivoted arm 14 is identical with upper pivoted arm 19, and lower pivoted arm 14 places face-to-face with upper pivoted arm 19, with respect to lumen 28 center symmetry up and down.The lower end of middle blow-off pipe 24 connects the four-way connection upper end of lower pivoted arm 14.Hence one can see that, the effect of middle blow-off pipe 24: the one, give lower pivoted arm 14 by the transmission of torque of upper pivoted arm 19, to ensure that upper and lower pivoted arm rotates at grade.The 2nd, increase drain outlet, make blowdown more unobstructed.What the lower end of the four-way connection of lower pivoted arm 14 connected is blowdown straight tube 39.
The upper end of the four-way connection of upper pivoted arm 19 is fixedly connected with pivoted arm driving shaft 20 lower ends by screw thread, pivoted arm driving shaft 20 upper ends are upward through the centre bore on top and the blind flange 7 of cylindrical shell 5, centre bore on blind flange 7 welds mutually with upper stuffing-box 21, pivoted arm driving shaft 20 is connected with shaft coupling 9 above by upper packing seal mechanism 23, the in succession output shaft of stepper motor 10 of the other end of shaft coupling 9, whole installation is coaxial line assembling.Stepper motor 10 connects controller.
At the interior coarse strainer 31 that arranges of cavity of resorption 30, as shown in Figure 4, lower clapboard 29 lower surface on, welded a coarse strainer guide collar 36,8 little shoulder holes 33 are all positioned at coarse strainer guide collar 36 internal diameters, and the external diameter of coarse strainer guide collar 36 equates with the internal diameter of coarse strainer 31.The upper end of coarse strainer 31 coordinates with coarse strainer guide collar 36, and the lower end of coarse strainer 31 is connected with retainer ring, and the excircle of retainer ring welds mutually with cylindrical shell 5 inwalls, and coarse strainer guide collar is also installed on retainer ring.The particular location of water inlet 4 is the centre positions in the short transverse of coarse strainer 31.Below the lower end retainer ring of coarse strainer 31, be lower stuffing seal 12, lower stuffing-box 11 is the axis coaxle with cylindrical shell 5 by 4 supports maintenances.And be fixed by welding.The lower end of lower stuffing-box 11 and blow-off pipe 3 connect, and connected mode is welding.Lower pivoted arm 14 blowdown straight tube 39 is below connected with blow-off pipe 3 by packing seal, and blowoff valve 38 is set on blow-off pipe 3.
According to above structural design, the water entering cylindrical shell 5 inner chambers from water inlet 4 will first pass through coarse filtration 31, filters out some larger dirts, has reduced the cleaning frequency of fie screen, thus the water consumption while having reduced fie screen backwash.Epicoele 25 and cavity of resorption 30 are by middle mozzle 18 UNICOMs, water after coarse filtration can enter into fie screen in Fen Liangtiao road, be that a part of water directly enters thin cylinder filter screen 17 from cavity of resorption 30, another part is come epicoele 25 through middle mozzle 18, and then enters thin cylinder filter screen 17.The water having filtered is stored in lumen 28, then flows out through delivery port 1.The advantage that the present invention arranges three chambeies is to make water enter in thin cylinder filter screen 17 simultaneously and carefully to filter from epicoele 25 and cavity of resorption 30, has improved filter efficiency.Along with the carrying out of normal filtration, on the inwall of thin cylinder filter screen 17, having increasing dirt adheres to, cause that cavity of resorption 30 and the pressure reduction of delivery port 1 increase, now differential pressure pickup 27 moves, by controller to signal of control circuit, also give blowoff valve 38 opening signals simultaneously, then stepper motor 10 starts to drive pivoted arm driving shaft 20 to turn round, stepper motor 10 stops and the angle of rotating is all determined, to ensure that the sealing shroud 37 on upper pivoted arm 19 and lower pivoted arm 14 can cover upper spacer 26 completely at every turn, two little shoulder holes 33 on lower clapboard 29, thereby the water after coarse filtration can not enter thin cylinder filter screen 17, now the water in thin cylinder filter screen 17 is directly emptying, therefore the hydraulic pressure of thin cylinder filter screen 17 inside is zero, and the outside of thin cylinder filter screen 17 is the clear water very large pressure in addition having filtered in lumen 28, thereby pressure reduction forms again, so a part of clear water rushes at the inside of thin cylinder filter screen 17 under the effect of pressure reduction from the outside of thin cylinder filter screen 17, complete backwash.After the band time of staying reaches, stepper motor 10 is rotated further next group filter screen (two filter screens that interval is 180 ° are one group), repeats said process and cleans successively.In the time that cavity of resorption 30 reaches normal range value with the pressure reduction of lumen 28, stepper motor 10 is parked in original position.The present invention is in realizing cleaning automatically, and because filter area is enough large, in the time cleaning one group of filter screen, other filter screens still can complete filtration, realize on-line cleaning.Only clean two filter screens, water consumption reduces water consumption to a great extent at every turn.
Claims (2)
1. a full-automatic back washing formula self-cleaning filter, comprises cylindrical shell (5), it is characterized in that: cylindrical shell (5) inner chamber is divided into epicoele (25), lumen (28), cavity of resorption (30) with upper spacer (26) and lower clapboard (29); The center of upper and lower dividing plate (26,29) all has large ladder centre bore (34), along the circumferential direction go up 8 little shoulder holes (33) are all evenly set; In lumen (28), the large ladder centre bore (34) that middle mozzle (18) two ends are tightly connected respectively on upper and lower dividing plate (26,29), the two ends of 8 thin cylinder filter screens (17) 8 the little shoulder holes (33) on upper and lower dividing plate (26,29) that are tightly connected respectively, blow-off pipe (24) in the middle of the interior empty set of middle mozzle (18), middle blow-off pipe (24) upper end extends in epicoele (25), lower end extends in cavity of resorption (32); In epicoele (25), be provided with pivoted arm (19), in cavity of resorption (32), be provided with lower pivoted arm (14), upper and lower pivoted arm (19,14) all by four-way connection, symmetry be connected in two bend pipes at two ends, four-way connection left and right, the sealing shroud (37) of bridge piece lower surface forms; Middle blow-off pipe (24) upper end connects the four-way connection lower end of upper pivoted arm (19), and middle blow-off pipe (24) lower end connects the four-way connection upper end of lower pivoted arm (14); Upper and lower pivoted arm (19,14) is Face to face with respect to the Central Symmetry setting of lumen (28); The spacing of two sealing shrouds (37) on same pivoted arm is the circle diameter at 8 little shoulder holes (33) place; The upper end of the four-way connection of upper pivoted arm (19) is fixedly connected with the pivoted arm driving shaft (20) being driven by stepper motor (10); The four-way connection lower end of lower pivoted arm (14) connects blowdown straight tube (39); On lumen (28) sidewall, set out the mouth of a river (1), on cavity of resorption (30) sidewall, water inlet (4) is set;
Coarse strainer (31) is set in cavity of resorption (30), coarse strainer (31) upper end is connected in lower clapboard (29) lower surface, 8 little shoulder holes (33) are positioned at coarse strainer guide collar (36) internal diameter, and coarse strainer (31) lower end is connected with retainer ring, and retainer ring and cylindrical shell (5) inwall joins;
Water inlet (4) and delivery port (1) locate to be provided with differential pressure pickup (27), and differential pressure pickup (27) is all connected controller with stepper motor (10);
Water part water after coarse filtration directly enters thin cylinder filter screen (17) from cavity of resorption (30), and another part enters thin cylinder filter screen (17) through middle mozzle (18) again to epicoele (25), along with the carrying out of normal filtration, cause that cavity of resorption (30) and the pressure reduction of delivery port (1) increase, now differential pressure pickup (27) action, by controller to signal of control circuit, stepper motor (10) drives pivoted arm driving shaft (20) running, water after coarse filtration can not enter thin cylinder filter screen (17), now the water in thin cylinder filter screen (17) is directly emptying, the inner hydraulic pressure of thin cylinder filter screen (17) is zero, the outside of thin cylinder filter screen (17) is that the clear water having filtered in lumen (28) also has very large pressure, thereby pressure reduction forms again, part clear water rushes at the inside of thin cylinder filter screen (17) under the effect of pressure reduction from the outside of thin cylinder filter screen (17), complete backwash, after the time of staying reaches, stepper motor (10) is rotated further next group filter screen and cleans successively, and in the time cleaning one group of filter screen, other filter screens still can complete filtration.
2. full-automatic back washing formula self-cleaning filter according to claim 1, is characterized in that: the large footpath of little shoulder hole (33), path size equal respectively external diameter, the internal diameter of thin cylinder filter screen (17); External diameter, the internal diameter of mozzle (18) in the middle of large footpath, the path of large ladder centre bore (34) equals respectively; The internal diameter of sealing shroud (37) equals the path of little shoulder hole (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210451573.7A CN102921231B (en) | 2012-11-13 | 2012-11-13 | Fully-automatic back-flushing type self-cleaning filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210451573.7A CN102921231B (en) | 2012-11-13 | 2012-11-13 | Fully-automatic back-flushing type self-cleaning filter |
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| Publication Number | Publication Date |
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| CN102921231A CN102921231A (en) | 2013-02-13 |
| CN102921231B true CN102921231B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210451573.7A Expired - Fee Related CN102921231B (en) | 2012-11-13 | 2012-11-13 | Fully-automatic back-flushing type self-cleaning filter |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104436792B (en) * | 2014-11-26 | 2016-09-28 | 秦皇岛首创思泰意达环保科技有限公司 | A kind of explosion-proof type gas control full-automatic back washing filter |
| JP6059283B2 (en) * | 2015-04-20 | 2017-01-11 | 富士フィルター工業株式会社 | Filtration unit |
| CN105413285A (en) * | 2015-12-30 | 2016-03-23 | 奕工晨（天津）节能环保科技发展有限公司 | Corrosion-resistant type self-cleaning filter equipment |
| CN105797476A (en) * | 2016-05-25 | 2016-07-27 | 青岛欧帝欧环保科技发展有限公司 | Self-cleaning slag-liquid separator and application thereof |
| CN106964226B (en) * | 2017-04-20 | 2022-07-01 | 江苏科技大学 | Bag type dust collector |
| CN107638726B (en) * | 2017-05-31 | 2023-06-13 | 河南龙成煤高效技术应用有限公司 | Fluid filter |
| CN108096897A (en) * | 2018-02-08 | 2018-06-01 | 江苏优耐特过滤装备有限公司 | The more filtering element self-cleaning filters of suctorial type |
| CN109126251A (en) * | 2018-08-09 | 2019-01-04 | 温州匠振科技有限公司 | A kind of foreign body filtering and tapping equipment of automatic intelligent |
| CN117599517B (en) * | 2024-01-23 | 2024-03-22 | 扬州纪扬机械设备有限公司 | Unpowered self-cleaning filter |
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| CN2548684Y (en) * | 2002-03-01 | 2003-05-07 | 石河子天星电气有限公司 | Intelligent water-saving filter |
| CN2569875Y (en) * | 2002-09-24 | 2003-09-03 | 蔡之善 | Automatic backflush filter |
| CN201997157U (en) * | 2010-12-06 | 2011-10-05 | 南通思创航海机械有限公司 | Full-automatic cleaning water filter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002036239A1 (en) * | 2000-11-06 | 2002-05-10 | Nihon Genryo Co., Ltd. | Filter sand washing method and its system |
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2012
- 2012-11-13 CN CN201210451573.7A patent/CN102921231B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2548684Y (en) * | 2002-03-01 | 2003-05-07 | 石河子天星电气有限公司 | Intelligent water-saving filter |
| CN2569875Y (en) * | 2002-09-24 | 2003-09-03 | 蔡之善 | Automatic backflush filter |
| CN201997157U (en) * | 2010-12-06 | 2011-10-05 | 南通思创航海机械有限公司 | Full-automatic cleaning water filter |
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