CN103239991A - Self-cleaning fluid filtering device - Google Patents
Self-cleaning fluid filtering device Download PDFInfo
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- CN103239991A CN103239991A CN2012100325381A CN201210032538A CN103239991A CN 103239991 A CN103239991 A CN 103239991A CN 2012100325381 A CN2012100325381 A CN 2012100325381A CN 201210032538 A CN201210032538 A CN 201210032538A CN 103239991 A CN103239991 A CN 103239991A
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- water
- dish
- water guide
- self
- filtering device
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- 238000004140 cleaning Methods 0.000 title claims abstract description 35
- 238000001914 filtration Methods 0.000 title claims abstract description 28
- 239000012530 fluid Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 172
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 11
- 239000011148 porous material Substances 0.000 claims description 5
- 210000002421 cell wall Anatomy 0.000 claims description 4
- 241000628997 Flos Species 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 24
- 230000000694 effects Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 210000005056 cell body Anatomy 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The invention relates to a self-cleaning fluid filtering device. The self-cleaning fluid filtering device comprises a processing groove, a driving unit, a water production tube, a filtering unit and a buckling unit, wherein the buckling unit comprises a plurality of water guide disks, a plurality of water sealing assemblies and a plurality of bridging assemblies; the water guide disks are separated into groups in pairs and are embedded and overlapped with a filter bag of the filtering unit in a staggered manner; each water guide disk comprises a disk body, a central hole and a plurality of water spraying passages; the water spraying passages of the water guide disks are communicated with one other by virtue of connection of the bridging assemblies; and when water is guided in the water spraying passages of the water guide disks, water is ejected out from each water spraying passage along the radial direction so as to facilitate the cleaning of the filter bag.
Description
Technical field
The present invention relates to a kind of water treatment facilities, and particularly relates to a kind of filter membrane inner ring that can solve and be easy to generate incrustation and the problem of non-easy cleaning, to prolong the self-cleaning fluid filtering device of filter membrane life cycle.
Background technology
The water treatment facilities of the improved cleaning action of filtering membrane of TaiWan, China patent announcement I291457 patent of invention case discloses a kind of water treatment facilities with cleaning filter membranes function.This water treatment facilities includes an airtight container, a water producing pipe, a filter element and most sparge pipe.
Life cycle for the filter membrane that improves filter element, this kind water treatment facilities utilizes most sparge pipes in water column hydro-peening mode, from outside to inside the filter membrane surface is washed away, impulse force by water column drives the swivel plate wheel blade generation rotation that is folded between two filter membranes simultaneously, and then strikes off mud, the particulate on filter membrane surface.
Though, utilize outside water column to wash away filter membrane and possess certain cleaning action, but, set up the filter element behind the swivel plate, but can make adjacent filter membrane space each other diminish, thus, the water column of ejection just is difficult to direct hydro-peening to the inner ring position of filter membrane near water producing pipe, make filter membrane inner ring top layer produce incrustation, cause the quick decay of filtering velocity, filter membrane life cycle and the reduction of life-span property.
And, water column is when spray is dashed from outside to inside, also the mud band can be located in the middle of this swivel plate, cause the load-carrying ring position of this swivel plate to produce the dirty phenomenon of card, and then the result of use that causes wheel blade to turn round and have some setbacks and influence the cleaning filter membrane, in the course of time, wheel blade will be worse and worse corresponding to the effect of scraping of filter membrane, even no longer rotate, and then lose cleaning action.
In addition, drive the swivel plate needed water column that rotates bigger spray power must be arranged, relative that the water yield that sparge pipe sprays certainly will also will increase, thus, whole water treatment facilities just must use clean and a large amount of water to wash, this measure is consumption of water resource more not only, and increases cleaning cost on foot.
Summary of the invention
The object of the present invention is to provide a kind of self-cleaning fluid filtering device, it utilizes the water spray passage hydro-peening mode from the inside to the outside of water guide dish to clean filter bag, bounce so that the filter bag face is produced, the scouring effect of disturbance, solve the face inner ring not outside the easy cleaning problem, more can lower the water consumption of washing away filter membrane, meet environmental benefit.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of self-cleaning fluid filtering device comprises a treatment trough, a driver element, a water producing pipe, a filter element and a fastening unit,
This treatment trough has a cell wall, a water inlet, a floss hole, and an airtight chamber that is surrounded by this cell wall;
This driver element is arranged at this treatment trough outside;
This water producing pipe links with this driver element and wears pivot in this airtight chamber, and this water producing pipe includes a tube wall and most the open-works that run through this tube wall around an axis;
This filter element, comprise most the nestable filter bags that are located on this water producing pipe of water sealed layer, aforementioned filter bag is to be vertical setting with this axis direction, and each filter bag has a medium pore that is connected with aforementioned open-work respectively, when this water producing pipe rotation of this drive unit drives, and then make this filter element produce rotation synchronously around the axis of this water producing pipe;
This fastens the unit, have most water guide dish, a most watertight assembly and most bridge assemblies, aforementioned water guide dish is to be one group in twos, and it is folded with the interlaced embedding of the filter bag of this filter element, and respectively this water guide dish has a dish body, one runs through the centre bore of this dish body vertically, and most water spray passages that extend towards a lateral wall from a madial wall, utilize the respectively connection of this bridge assembly, so that respectively the water spray passage of this water guide dish is interconnected, when water was guided into the water spray passage of these water guide dish, water liquid radially sprayed via this water spray passage respectively.
The outermost water guide dish that is placed in of described fastening unit has a water-guiding hole, and this water-guiding hole is arranged on the outer card of this dish body.
The water spray passage of each water guide dish of described fastening unit has a front end respectively with terminal, the front end of this spray orifice passage is made up of with second perforation one first perforation of the madial wall that is opened in this dish body, the end of this water spray passage is one to be opened in the strip hole of the lateral wall of this dish body, and this bridge assembly is to be connected in the perforation of two adjacent water guide dish.
Described bridge assembly has one first end and one second end that is interconnected, first end of this bridge assembly be connected the top position water guide dish first the perforation on, and second end of this bridge assembly be connected lower position water guide dish second the perforation on.
Described water guide dish more has a ring to be located at the dish body interior so that the inner flow passage that is interconnected of this water spray passage respectively, and most little strip holes that are opened in the lateral wall of this dish body, respectively this little strip hole is separately positioned between two strip holes, and this little strip hole is connected with this inner flow passage.
The described passage of respectively spraying water all is fan-shaped with the radial section of this inner flow passage respectively.
Each water guide dish of described fastening unit have more most threaded shafts to and be opened in that annular distance on the ring wall face of this centre bore, most extend and the locking part of corresponding annular distance one end from this dish body one side panel faces outside, and the individual involutory portion of extending in this annular distance from this dish body opposite side card of majority.
More comprise an air conduit, this air conduit is settled the bottom land of this treatment trough, and the air of this air conduit ejection is corresponding to be impacted in this filter bag outside.
Therefore, adopt hydro-peening mode from outside to inside to clean filter membrane compared to existing water treatment facilities, cause face inner ring card dirt, water resistance problem easily.Utilization of the present invention hydro-peening mode from the inside to the outside, allow water liquid passage water guide dish successively, and make strip hole, the little strip hole of water liquid on the lateral wall of this water guide dish outwards spray, dirt can jam around disk body, and when water liquid outwards sprays from the inside to the outside, can produce the face of filter bag bounce, the scouring effect of disturbance, therefore do not block the dirt except face, more multiplication is renderd a service in the scale removal of filter membrane.Thus, except having overcome the incrustation problem, more lower the discharging of waste water, and meet environmental benefit.
Description of drawings
Fig. 1 is the constitutional diagram of the self-cleaning fluid filtering device of first embodiment of the invention, and shows that this water producing pipe, this filter element and this fastening unit are placed in the assembling structure in this treatment trough;
Fig. 2 is the exploded perspective view of this first embodiment, is to show water producing pipe, filter element and fastening unit;
Fig. 3 is the assembled sectional view of this first embodiment, is the combination situations that shows this water producing pipe, this filter element and this fastening unit;
Fig. 4 is the exploded perspective view of this first embodiment, is the enlarged drawing of this water guide dish and these bridge assemblies;
Fig. 5 is the constitutional diagram of this water guide dish and this filter bag, and shows the sectional drawing that this water guide dish radially extends;
Fig. 6 is the constitutional diagram of the self-cleaning fluid filtering device of second embodiment of the invention, and shows that this water producing pipe, this filter element, this fastening unit and this air conduit are placed in the assembling structure in this treatment trough.
The specific embodiment
In order further to explain technical scheme of the present invention, the present invention will be described in detail below by specific embodiment.
With reference to Fig. 1 and Fig. 2, first embodiment of self-cleaning fluid filtering device of the present invention comprises a treatment trough 10, a driver element 20, a water producing pipe 30, a filter element 40 and a fastening unit 50.
This treatment trough 10 has an airtight chamber 13, that is defined by a horizontally disposed cell body 11 and an enclosing cover 12 and is positioned at the delivery port 15 that these cell body 11 upper left water inlets 14, one are away from this water inlet 14, and one connects the control valve 16 that is located at this delivery port 15.
This driver element 20 is placed in this treatment trough 10 outsides, includes a reductor 21 and one and the power transmission shaft 22 that links of this reductor 21, and pivot is respectively overlapped at these power transmission shaft 22 two ends a bearing block 23, the load when rotatablely moving to obtain to support and bear.
This water producing pipe 30 links with the power transmission shaft 22 of this driver element 20 and wears pivot in this treatment trough 10, and this water producing pipe 30 includes a tube wall 31 and most the open-works 32 that run through this tube wall 31 around an axis.In the present embodiment, this water producing pipe 30 is to be normally closed shape with the end that this power transmission shaft 22 is coupling, the other end of this water producing pipe 30 then extends outside this treatment trough 10, and will be filtered to water purification in this water producing pipe 30 with a negative pressure and connect to a clean water tank (figure discloses) and store.
Continuous with reference to Fig. 2 and Fig. 3, this filter element 40 comprises most the nestable filter bags 41 that are located on this water producing pipe 30 of water sealed layer, and aforementioned filter bag 41 is to be uniformly-spaced vertical setting with the axis direction of this water producing pipe 30.And each filter bag 41 has a medium pore 411 that is connected with aforementioned open-work 32, a membrane support plate 412, a first film 413 and one second film 414 respectively, and the room 415 that is defined water supply body dialysis by the three.And this medium pore 411 is to be connected with this room 415.This membrane support plate 412 is to make with netted plastic material, and seals then at edge and this first film 413, second film 414.
With reference to Fig. 2, Fig. 3 and Fig. 4, this fastens unit 50, has most water guide dish 51, most watertight assemblies 52 and most bridge assemblies 53.Aforementioned water guide dish 51 is to be one group and folded with the filter bag 41 interlaced embeddings of this filter element 40 in twos.And respectively this water guide dish 51 has the centre bore 511 that a dish body 510, runs through this dish body 510 vertically, and most the water spray passages 54 that extend towards a lateral wall 513 from a madial wall 512.Utilize the respectively connection of this bridge assembly 53, so that respectively the water spray passage 54 of this water guide dish 51 is interconnected, when water was guided into the water spray passage 54 of these water guide dish 51, water liquid was beneficial to clean filter bag 41 via respectively should radially spraying by water spray passage 54.
The water spray passage 54 of each water guide dish 51 of this fastening unit 50 has a front end respectively with terminal, and the front end of this spray orifice passage 54 is made up of one first perforation, 541 and second 542 of the perforation of the madial wall 512 that is opened in this dish body 510.The end of this water spray passage 54 is one to be opened in the strip hole 543 of the lateral wall 513 of this dish body 510, and this bridge assembly 53 is in the perforation (first and second perforation 541,542 or second, one perforation 542,541) that is connected two adjacent water guide dish 51.
That is, this bridge assembly 53 has one first end 531 and one second end 532 that is interconnected, first end 531 of this bridge assembly 531 be connected the top position water guide dish 51 first the perforation 541 on, and second end 532 of this bridge assembly 53 be connected lower position water guide dish 51 second the perforation 542 on.
Continuous with reference to Fig. 5, it is inner so that the inner flow passage 55 that is interconnected of this water spray passage 54 respectively that this water guide dish 51 more has a ring to be located at dish body 510, and most little strip holes 56 that are opened in the lateral wall of this dish body, respectively this little strip hole 56 is separately positioned between two strip holes 543, and this little strip hole 56 is connected with this inner flow passage 55.In the present embodiment, respectively this water spray passage 54 all is fan-shaped with the radial section of this inner flow passage 55 respectively.
With reference to Fig. 2 and Fig. 3, the outermost water guide dish 51 that is placed in of this fastening unit 50 has a water-guiding hole 514, and this water-guiding hole 514 is arranged on the outer card of this dish body 510.
With reference to Fig. 4, each water guide dish 51 of this fastening unit 50 have more most threaded shafts to and be opened in that annular distance 515 on the ring wall face of this centre bore 511, most extend and the locking part 516 of corresponding annular distance 515 1 ends from these dish body 510 1 side panels face outside, and individual involutory 517 of extending in this annular distance from these dish body 510 opposite side cards of majority.The locking part 516 of each water guide dish 51 is can place in the annular distance 515 of adjacent water guide dish 51, and can be at a release position corresponding with the locking part 516 of adjacent water guide dish 51, and with involutory 517 corresponding locking positions of adjacent water guide dish 51 between turn.
Reference the 2nd and Fig. 3, aforementioned water guide dish 51 proper crampings are at filter bag 41 medium pores 411 peripheries, and 52 subsides of mat watertight assembly are supported filter bag 41 faces and are infiltrated in the water producing pipe 30 to prevent unboiled water, and utilize water guide dish 51 can interlock the characteristics of knot mutually, can make the filter bag 41 of this filter element 40 successively lock folded group admittedly.
The mode at the filtration water source of self-cleaning fluid filtering device of the present invention is identical with prior art of the present invention, is not the main emphasis of this case owing to filter the effect of producing water, in this few explanation.
With reference to Fig. 3 and Fig. 5, dirty and then when reduce producing the water filtering velocity when the face of this filter bag 41, at this moment, can draw and draw the sewage in this treatment trough 10 among Fig. 1, water liquid is pumped into this water spray passage 54 via the water-guiding hole 514 of outermost this water guide dish 51, and these bridge assemblies 53 of process are dredged current, make water liquid utilization mode from inside to outside, and layer by layer from these strip holes 543 of this water guide dish 51, and through the guiding of this inner flow passage 55, and outwards sprayed by these little strip holes 56 simultaneously, produce souring with the face to these filter bags 41, and reach the effect of cleaning filter membrane.And, in the present invention, utilize hydro-peening mode from the inside to the outside, water liquid is from the lateral wall 513 outside jet flows of the dish body 510 of this water guide dish 51, feasible script is detained in the mud of this filter bag 41 faces, can directly take out of towards filter bag 41 outer circumferential sides, and around the dish body 510 or dead angle such as filter bag 41 inner rings can not produce the dirty situation of card, therefore, the effect of cleaning filter membrane is showing very much.In addition, produce more because water liquid outwards during ejection, can produce the high-pressure jet effect via strip hole 543, little strip hole 56, and then to filter bag 41 faces bounce, the effect of disturbance, therefore face is difficult for the card dirt, and then prolongs operation cycle and the service life of filter bag 41.
With reference to Fig. 6, second embodiment of self-cleaning fluid filtering device of the present invention, include a treatment trough 10, a driver element 20, a water producing pipe 30, a filter element 40, one and fasten unit 50 and an air conduit 60, wherein this treatment trough 10, this driver element 20, this water producing pipe 30, this filter element 40 and this combining structure that fastens unit 50 and function all with Fig. 1, Fig. 2 in first embodiment identical.The characteristics of present embodiment are: this air conduit 60 is settled the bottom land of this treatment trough 10.This air conduit 60 is bled by one and is helped the Pu (not shown) that the outside air guiding is entered this treatment trough 10, and via air corresponding impact in this filter bag 41 outsides of most spray orifices 61 with ejection, this moment, the air of ejection can form a large amount of micro air bubbles in treatment trough 10, and cooperate this water guide dish 51 by the interior water column (shown in dotted arrow among Fig. 5) of ejection outward, the disturbance cleaning action that both generations are attacked within and outside, improving the cleaning effect to filter bag 41 faces, and waste water resource not.
Conclude above-mentionedly, use from outside to inside mode to come hydro-peening cleaning filter membrane usually compared to existing water treatment facilities, cause easily that card is dirty, the water resistance problem.Self-cleaning fluid filtering device of the present invention is different from the past, under the situation that does not influence filter bag 41 normal filtration product water, utilize hydro-peening mode from the inside to the outside, not only can solve the dirt jam at the existing issue of water guide dish, when water liquid outwards sprays from the inside to the outside, can produce the face of filter bag bounce, the scouring effect of disturbance, so face do not block outside the dirt, and more multiplication is renderd a service in the scale removal of filter membrane.Thus, except having overcome the incrustation problem, more lower the demand of hydro-peening water, and meet environmental benefit.
Claims (8)
1. a self-cleaning fluid filtering device comprises a treatment trough, a driver element, a water producing pipe, a filter element and a fastening unit, it is characterized in that:
This treatment trough has a cell wall, a water inlet, a floss hole, and an airtight chamber that is surrounded by this cell wall;
This driver element is arranged at this treatment trough outside;
This water producing pipe links with this driver element and wears pivot in this airtight chamber, and this water producing pipe includes a tube wall and most the open-works that run through this tube wall around an axis;
This filter element, comprise most the nestable filter bags that are located on this water producing pipe of water sealed layer, filter bag is to be vertical setting with this axis direction, and each filter bag has a medium pore that is connected with aforementioned open-work respectively, when this water producing pipe rotation of this drive unit drives, and then make this filter element produce rotation synchronously around the axis of this water producing pipe;
This fastens the unit, have most water guide dish, most watertight assemblies and most bridge assemblies, water guide dish is to be one group in twos, and it is folded with the interlaced embedding of the filter bag of this filter element, and respectively this water guide dish has the centre bore that a dish body, runs through this dish body vertically, and most water spray passages that extend towards a lateral wall from a madial wall, utilize the respectively connection of this bridge assembly, so that respectively the water spray passage of this water guide dish is interconnected, when water was guided into the water spray passage of these water guide dish, water liquid radially sprayed via this water spray passage respectively.
2. self-cleaning fluid filtering device as claimed in claim 1, it is characterized in that: the outermost water guide dish that is placed in of this fastening unit has a water-guiding hole, and this water-guiding hole is arranged on the outer card of this dish body.
3. self-cleaning fluid filtering device as claimed in claim 1, it is characterized in that: the water spray passage of each water guide dish of this fastening unit has a front end respectively with terminal, the front end of this spray orifice passage is made up of with second perforation one first perforation of the madial wall that is opened in this dish body, the end of this water spray passage is one to be opened in the strip hole of the lateral wall of this dish body, and this bridge assembly is to be connected in the perforation of two adjacent water guide dish.
4. self-cleaning fluid filtering device as claimed in claim 3, it is characterized in that: this bridge assembly has one first end and one second end that is interconnected, first end of this bridge assembly be connected the top position water guide dish first the perforation on, and second end of this bridge assembly be connected lower position water guide dish second the perforation on.
5. self-cleaning fluid filtering device as claimed in claim 3, it is characterized in that: this water guide dish more has a ring to be located at the dish body interior so that the inner flow passage that is interconnected of this water spray passage respectively, and most little strip holes that are opened in the lateral wall of this dish body, respectively this little strip hole is separately positioned between two strip holes, and this little strip hole is connected with this inner flow passage.
6. self-cleaning fluid filtering device as claimed in claim 5 is characterized in that: respectively this water spray passage all is fan-shaped with the radial section of this inner flow passage respectively.
7. self-cleaning fluid filtering device as claimed in claim 1, it is characterized in that: each water guide dish of this fastening unit have more most threaded shafts to and be opened in that annular distance on the ring wall face of this centre bore, most extend and the locking part of corresponding annular distance one end from this dish body one side panel faces outside, and the individual involutory portion of extending in this annular distance from this dish body opposite side card of majority.
8. self-cleaning fluid filtering device as claimed in claim 1, it is characterized in that: more comprise an air conduit, this air conduit is settled the bottom land of this treatment trough, and the air of this air conduit ejection is corresponding to be impacted in this filter bag outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210032538.1A CN103239991B (en) | 2012-02-14 | 2012-02-14 | Self-cleaning fluid filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210032538.1A CN103239991B (en) | 2012-02-14 | 2012-02-14 | Self-cleaning fluid filtering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103239991A true CN103239991A (en) | 2013-08-14 |
| CN103239991B CN103239991B (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210032538.1A Expired - Fee Related CN103239991B (en) | 2012-02-14 | 2012-02-14 | Self-cleaning fluid filtering device |
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| Country | Link |
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| CN (1) | CN103239991B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112008606A (en) * | 2020-09-01 | 2020-12-01 | 江苏力源液压机械有限公司 | Oil way filtering system of grinding machine |
| CN117225196A (en) * | 2023-11-16 | 2023-12-15 | 克拉玛依博达生态环保科技有限责任公司 | Cleaning mechanism and filter device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4897192A (en) * | 1988-07-18 | 1990-01-30 | Lawrence William J | Rotary filtration device |
| CN1868897A (en) * | 2005-05-24 | 2006-11-29 | 郭瑜珊 | Water treatment device capable of raising cleaning action of filtering membrane |
| CN102059055A (en) * | 2009-11-16 | 2011-05-18 | 新世膜科技股份有限公司 | Interlocking type water guide disk set |
-
2012
- 2012-02-14 CN CN201210032538.1A patent/CN103239991B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4897192A (en) * | 1988-07-18 | 1990-01-30 | Lawrence William J | Rotary filtration device |
| CN1868897A (en) * | 2005-05-24 | 2006-11-29 | 郭瑜珊 | Water treatment device capable of raising cleaning action of filtering membrane |
| CN102059055A (en) * | 2009-11-16 | 2011-05-18 | 新世膜科技股份有限公司 | Interlocking type water guide disk set |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112008606A (en) * | 2020-09-01 | 2020-12-01 | 江苏力源液压机械有限公司 | Oil way filtering system of grinding machine |
| CN117225196A (en) * | 2023-11-16 | 2023-12-15 | 克拉玛依博达生态环保科技有限责任公司 | Cleaning mechanism and filter device |
| CN117225196B (en) * | 2023-11-16 | 2024-01-30 | 克拉玛依博达生态环保科技有限责任公司 | Cleaning mechanism and filter device |
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| CN103239991B (en) | 2015-12-16 |
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