CN103100249B - Movable turn-taking backwash net type filter - Google Patents
Movable turn-taking backwash net type filter Download PDFInfo
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- CN103100249B CN103100249B CN201110378261.3A CN201110378261A CN103100249B CN 103100249 B CN103100249 B CN 103100249B CN 201110378261 A CN201110378261 A CN 201110378261A CN 103100249 B CN103100249 B CN 103100249B
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- type filter
- backwash
- net
- wall
- turn
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Abstract
The invention discloses a movable turn-taking backwash net type filter which comprises a shell, an upper gland, a base, a water inlet, a water outlet, a blow-off pipe and a net type filter element. The movable turn-taking backwash net type filter is characterized in that the upper gland and the base are arranged at two ends of the shell; the blow-off pipe is arranged on an outer wall of the shell and close to the upper gland; a gear transmission device is arranged on the upper gland; the bottom end of the base is connected with a water outlet, and a water inlet is connected to an outer wall of the base; the net type filter element is arranged inside the shell; two ends of the net type filter element are sleeved in a U-shaped rubber ring in an annular groove on the upper gland and the base; a circular ring clapboard is arranged between the outer wall of the net type filter element and an inner wall of the shell; the circular ring is connected with a power pull rod; the power pull rod is connected with the gear transmission device; and the circular ring clapboard moves under the action of the power pull rod. Compared with the prior art, the movable turn-taking backwash net type filter has the advantages that the circular ring clapboard is arranged between the inner wall of the shell and the net type filter element, the circular ring clapboard moves to perform turn-taking backwash on different sections of the net type filter element, and the filter is simple in structure and has obvious effect.
Description
Technical field
The present invention relates to a kind of movement that agricultural irrigation systems is filtered backwash net-type filter in turn.
Background technology
The current well strainer for agricultural irrigation systems generally adopts other clear water filtering monomer to carry out backwash to this filtration monomer, under the state of work, generally can not complete filtration and the backwash of filter self simultaneously.Although there are some well strainers self to finish the work filtration under state and backwash simultaneously, its filter and the effect of backwash not fine.And complex structure, complex operation, net formula filter core circumference unbalance stress, easily causes net formula filter core to be out of shape, and increases operating cost.Such as a kind of automatic backwashing filter disclosed in patent CN 1421261A, include a shell body, which is provided with water inlet, delivery port and sewage draining exit, it is characterized in that installing a valve shaft near water inlet end place in this shell body, this valve shaft first half installing one recoil valve plate, valve plate is filtered in Lower Half installing one, and two valve plate semicirculars in shape are fixed on valve shaft in cross vertical configuration mutually, filters on the right side of valve plate and arranges one
the filter medium of shape filter, should
multiple filter bores established by shape filter.Its weak point be the valve shaft of this filter before the filter screen of water inlet be in filtration condition all the time, the backwash of whole filter screen can not be completed, and be
shape filter unbalance stress, easily deforms, and increases system operation cost, complex structure, inconvenient operation.
Summary of the invention
The object of the invention is to solve under normal filtration state, filter self can not complete the backwash to whole filter screen simultaneously, and backwash situation lower filter screen discontinuity, causes filter screen to be out of shape, and increases the problem of operating cost.And then provide a kind of when normal filtration, the backwash of whole filter screen can be completed alone, and filter screen uniform force, can not deform, reduce operating cost, structure is simple, safe and reliable movement backwash net-type filter in turn.
Basic system of the present invention mainly comprises housing, upper press cover, base, water inlet, delivery port, blow-off pipe and net formula filter core, it is characterized in that the two ends of housing are provided with upper press cover and base, housing exterior walls is provided with blow-off pipe near upper press cover place, upper press cover is connected with external force means by synchronized in the same way gear drive, the bottom of base is provided with delivery port, its outer wall is provided with water inlet, enclosure interior is provided with net formula filter core, the two ends of net formula filter core are socketed in " U " shape cushion rubber of being embedded on upper press cover and base in annular groove, machine annulus dividing plate is provided with between net formula filter core outer wall and inner walls, in annulus dividing plate, outer wall is respectively equipped with annular groove, large mechanically-sealing apparatus is provided with in annular groove, respectively with outer wall and the inner walls close proximity of net formula filter core, annulus dividing plate can only pump on the outer wall of net formula filter core, and annulus partition movement scope can not exceed near that end water inlet of annulus dividing plate or the tube wall of blow-off pipe.Its annulus dividing plate is provided with power pull bar, and power pull bar is through upper press cover, and be provided with gadget sealing device between them, power pull bar is connected with synchronized in the same way gear drive.
The present invention is provided with the annulus dividing plate doing on net formula filter core and pump, and along with the movement of annulus dividing plate, the part different to net formula filter core can carry out backwash, thus under the state of normal filtration, complete the backwash of whole net formula filter core.In the process of backwash, net formula filter core is circumferential stressed, overall uniform force, not easily causes net formula filter core to deform, reduces the destruction to filter screen, reduce cost, and overall structure is simple, easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure, 1 is upper press cover, and 2 is housing, and 3 is power pull bar, 4 is external force means, and 5 is gear drive, and 6 is " U " shape cushion rubber, 7 is net formula filter core, 8 is gadget sealing device, and 9 is blow-off pipe, and 10 is water inlet, 11 is large mechanically-sealing apparatus, 12 is delivery port, and 13 is base, and 14 is annulus dividing plate.
Specific embodiment
Fig. 1 is the structural representation that the present invention moves backwash net-type filter embodiment in turn.The two ends of its middle shell 2 are provided with upper press cover 1 and base 13, housing exterior walls is provided with blow-off pipe 9 near upper press cover place, upper press cover passes through gear drive 5 to be in the same way connected with external force means 4, the bottom of base is provided with delivery port 12, its outer wall is provided with water inlet 10, enclosure interior is provided with net formula filter core 7, the two ends of net formula filter core are socketed in " U " shape cushion rubber 6 of being embedded on upper press cover and base in annular groove, annulus dividing plate 14 is provided with between net formula filter core outer wall and inner walls, in annulus dividing plate, outer wall is respectively equipped with annular groove, large mechanically-sealing apparatus 11 is provided with in annular groove, respectively with outer wall and the inner walls close proximity of net formula filter core, annulus dividing plate can only pump on the outer wall of net formula filter core, and annulus partition movement scope can not exceed near that end water inlet of annulus dividing plate or the tube wall of blow-off pipe.Its annulus dividing plate is provided with power pull bar 3, and power pull bar is through upper press cover, and be provided with gadget sealing device 9 between them, power pull bar is connected with synchronized in the same way gear drive.
Operation principle: under mobile backwash net-type filter normal operating conditions in turn, annulus dividing plate is positioned at the top of net formula filter core under the effect of external force means, its annulus dividing plate makes blow-off pipe be in closed condition, sewage moves in the housing of backwash net-type filter in turn through water inlet, there is the filtration of net formula filter core again, clear water after its filtration flows out through delivery port, constantly filtering simultaneously, some impurity are just attached to the outer surface of net formula filter core, net formula filter core inside and outside differential pressure constantly increases, after pressure reduction reaches certain numerical value, external force means starts, mobile backwash net-type filter in turn enters backwash state, the normal filtration of its net formula filter core is also being carried out, annulus dividing plate is promoted at the uniform velocity downwards by gear drive and power pull bar by external force means, blow-off pipe can be opened simultaneously, and the cavity between net formula filter core and housing is divided into upper and lower two chambeies, this is that sewage enters through water inlet, enter second chamber of annulus dividing plate, again by the filtration of net formula filter core, clear water after part filtration is flowed out by delivery port, another part clear water then can be entered first chamber of annulus dividing plate by net formula filter core, thus from top to bottom backwash is carried out to net formula filter core, addle after backwash is discharged by blow-off pipe, when annulus partition movement is to least significant end, water inlet is closed, now external force means starts counter motion, annulus dividing plate is moved from bottom to top by gear drive and power pull bar, again net formula filter-core back-flushing is washed, after moving to the top of net formula filter core, blow-off pipe cuts out, thus the backwash completed whole net formula filter core.
Claims (6)
1. movement backwash net-type filter in turn, comprise housing, upper press cover, base, water inlet, delivery port, blow-off pipe and net formula filter core, it is characterized in that the two ends of housing are connected with upper press cover and base, blow-off pipe is positioned at housing exterior walls near upper press cover place, upper press cover is provided with gear drive, gear drive is made up of gear wheel and pinion fits, gear wheel is provided with the connecting rod be connected with external force means, the bottom of base is connected with delivery port, its outer wall is connected with water inlet, net formula filter core is positioned at enclosure interior, the two ends of net formula filter core are embedded in " U " shape cushion rubber on upper press cover and base in annular groove, annulus dividing plate is provided with between net formula filter core outer wall and inner walls, its annulus dividing plate is provided with power pull bar, power pull bar outer wall is provided with screw thread, power pull rod screw place is socketed with pinion, power pull bar and pinion center are for being threaded.
2. backwash net-type filter in turn as claimed in claim 1, is characterized in that external force means is motor-driven.
3. backwash net-type filter in turn as claimed in claim 1 or 2, is characterized in that external force means is hand gear.
4. backwash net-type filter in turn as claimed in claim 1, it is characterized in that hand of spiral on the power pull bar of net formula filter core left and right is contrary but pitch is equal, respective pinions center screw thread matches.
5. backwash net-type filter in turn as claimed in claim 1, is characterized in that the inside and outside wall of annulus dividing plate is respectively equipped with annular groove, is provided with mechanically-sealing apparatus in annular groove, respectively with outer wall and the inner walls close proximity of net formula filter core.
6. the backwash net-type filter in turn as described in claim 1 or 5, is characterized in that annulus dividing plate is at power pull bar move under influence, and annulus partition movement scope can not exceed near that end water inlet of annulus dividing plate or the tube wall of blow-off pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110378261.3A CN103100249B (en) | 2011-11-12 | 2011-11-12 | Movable turn-taking backwash net type filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110378261.3A CN103100249B (en) | 2011-11-12 | 2011-11-12 | Movable turn-taking backwash net type filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103100249A CN103100249A (en) | 2013-05-15 |
| CN103100249B true CN103100249B (en) | 2015-03-25 |
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ID=48308649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110378261.3A Expired - Fee Related CN103100249B (en) | 2011-11-12 | 2011-11-12 | Movable turn-taking backwash net type filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN103100249B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799393A (en) * | 2021-09-28 | 2021-12-17 | 上海电机学院 | Cleaning device for additive manufacturing spray head |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0720862A1 (en) * | 1995-01-07 | 1996-07-10 | Bossert, Gerdi | Filter for filtering gaseous and liquid media |
| EP0774287A1 (en) * | 1995-11-15 | 1997-05-21 | HYDAC FILTERTECHNIK GmbH | Back flushable filter with gas |
| CN2753439Y (en) * | 2004-03-08 | 2006-01-25 | 李玉强 | Purifier filter core internal backflush synchronous external cleaning device |
| CN201537421U (en) * | 2009-05-06 | 2010-08-04 | 新疆天业（集团）有限公司 | Self-cleaning net filter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI110483B (en) * | 1999-09-20 | 2003-02-14 | Parker Hannifin Oy | filtration plant |
| JPH11138437A (en) * | 1997-10-31 | 1999-05-25 | Toshiba Ceramics Co Ltd | Recoverying device for very fine particle from slurry |
-
2011
- 2011-11-12 CN CN201110378261.3A patent/CN103100249B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0720862A1 (en) * | 1995-01-07 | 1996-07-10 | Bossert, Gerdi | Filter for filtering gaseous and liquid media |
| EP0774287A1 (en) * | 1995-11-15 | 1997-05-21 | HYDAC FILTERTECHNIK GmbH | Back flushable filter with gas |
| CN2753439Y (en) * | 2004-03-08 | 2006-01-25 | 李玉强 | Purifier filter core internal backflush synchronous external cleaning device |
| CN201537421U (en) * | 2009-05-06 | 2010-08-04 | 新疆天业（集团）有限公司 | Self-cleaning net filter |
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| Publication number | Publication date |
|---|---|
| CN103100249A (en) | 2013-05-15 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20191112 |