CN105036381B - A kind of water supply line filter device - Google Patents
A kind of water supply line filter device Download PDFInfo
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- CN105036381B CN105036381B CN201510292000.8A CN201510292000A CN105036381B CN 105036381 B CN105036381 B CN 105036381B CN 201510292000 A CN201510292000 A CN 201510292000A CN 105036381 B CN105036381 B CN 105036381B
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- supporting network
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 239000012528 membrane Substances 0.000 claims abstract description 60
- 239000012535 impurity Substances 0.000 claims abstract description 59
- 238000001914 filtration Methods 0.000 claims abstract description 30
- 238000001556 precipitation Methods 0.000 claims abstract description 20
- 238000011109 contamination Methods 0.000 claims abstract description 18
- 239000000356 contaminant Substances 0.000 claims abstract description 13
- 238000011045 prefiltration Methods 0.000 claims abstract 2
- 238000011001 backwashing Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 6
- 208000002925 dental caries Diseases 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 description 26
- 230000000694 effects Effects 0.000 description 12
- 239000002245 particle Substances 0.000 description 11
- 241000894006 Bacteria Species 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000005374 membrane filtration Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000011859 microparticle Substances 0.000 description 2
- 241000143060 Americamysis bahia Species 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of water supply line filter devices,Including inlet and outlet pipes,Contaminant filter and membrane filter are set on the water inlet line,The contaminant filter includes filter body,Lid is arranged in the top of the filter body,The bottom end setting contamination precipitation pond of the filter body,Impurity delivery pipe,The first opening of side setting of the filter body,Filter screen,The membrane filter includes the first cavity,Second cavity and third cavity,First cavity is close to the second opening of one end of filter body setting,The first supporting network is arranged close to one end of the second opening in first cavity,Prefiltration film layer,The second supporting network is arranged in the other end of first cavity,Middle filter membranous layer,Third supporting network is arranged in the one end of second cavity far from the first cavity,Refined filtration film layer is set on the third supporting network,The described one end of third cavity far from the second cavity is connected to outlet conduit.
Description
Technical field
The invention mainly relates to water treatment field, specifically a kind of water supply line filter device.
Background technology
Water process is exactly sedimentation, filtering, coagulation, the flocculation carried out to water by the means of physics, chemistry, biology, and
The processing procedures such as inhibition, scale inhibition go some in removing water to produce, do not needed in life or harmful substance, social production, life
Closely related especially in recent years with water, the residential location of people is increasingly concentrated to city, attention rate of the society to water process
It is higher and higher, and in water treatment procedure, filtering is a very important link.
Existing Water supplying filtering device there is also some problems when in use：
1, water source of the present urban water supply majority using surface water as waterworks, these water sources include reservoir, rivers
River heavy caliber radial is close to etc. in lake, existing since the raw water at these water sources has the biologies such as some solid impurities and fishes and shrimps
The impurity such as Water supplying filtering device, stone, brick, iron block that volume larger heavier for proportion can not easily remove, can be long-term
It is deposited in inside filter, influences the normal use of filter；
2, existing Water supplying filtering device, hydraulic pressure is excessive at filter screen, causes water volume flow rate in pipeline fast, filter effect
Difference；
3, existing Water supplying filtering device does not have back washing device, if do not cleaned timely to filter device, can make
It is accumulated in filter device at dust bacterium, it is easy to which secondary pollution is caused to water body；
4, Water supplying filtering device after a period of use, needs replacing filter screen or filter membrane, but existing supplies water
Filtering device needs opening filtering threading row to replace, then filter screen or filter membrane are installed in return device, cumbersome.
Invention content
To solve deficiency in the prior art, the present invention provides a kind of water supply line filter device, can clear up pipe in time
Solid impurity in road, and can prevent solid impurity from accumulating in the device, membrane filtration can be reduced during the filtration process
The flow velocity of water body at device increases filter effect.
The present invention to achieve the above object, is achieved through the following technical solutions：
Impurity mistake is arranged on the water inlet line for a kind of water supply line filter device, including inlet and outlet pipes
Filter and membrane filter, the contaminant filter include filter body, and the height of the filter body is more than water inlet line
Height, lid is arranged in the top of the filter body, and the lid is hinged with filter body, the filter body
Contamination precipitation pond is arranged in bottom end, and impurity delivery pipe, the filtering is arranged in the one end of the contamination precipitation pond far from filter body
The first opening of side setting of device main body, first opening is interior to install filter screen, and first opening is connected to membrane filter,
The membrane filter include the first cavity, the second cavity and third cavity, first cavity, the second cavity and third cavity according to
Secondary connection, first cavity close to filter body one end setting second opening, it is described second opening cross-sectional area by
Cumulative big, the first supporting network is arranged close to one end of the second opening in first cavity, and just mistake is arranged on first supporting network
Filter membranous layer, the other end of first cavity are arranged the second supporting network, filter membranous layer in being arranged on second supporting network, and described the
Third supporting network is arranged in the one end of two cavitys far from the first cavity, and refined filtration film layer, the third is arranged on the third supporting network
The one end of cavity far from the second cavity is connected to outlet conduit.
Back washing device is set on the membrane filter, the back washing device backwash tube, be respectively set on the backwash tube with
First filter membranous layer, middle filter membranous layer and the matched backwash head of refined filtration film layer, the interior setting of the membrane filter are matched with backwash
Blow-off pipe, the blow-off pipe are connected to impurity delivery pipe.
Setting is open with the matched third of first filter membranous layer, middle filter membranous layer and refined filtration film layer on the membrane filter, described
Block is arranged in third opening.
The cross-sectional area of second cavity is less than the first cavity, and the cross-sectional area of the third cavity is less than the second chamber
Body.
The height of the membrane filter is less than the height of the first opening.
The cross-sectional area in the contamination precipitation pond is gradually reduced from the top down.
Protective shell is set outside the membrane filter.
Comparison and the prior art, advantageous effect of the present invention are：
1, present invention setting contaminant filter can clear up the solid impurity in pipeline in time, while contamination precipitation pond can
Prevent solid impurity from accumulating in the device, the second opening can reduce the flow velocity of water body at membrane filter during the filtration process,
Increase filter effect；
2, present invention setting back washing device, can in time clean membrane filter, remove the dust in membrane filter
And bacterium, it is ensured that filtered water can be safe and healthy；
3, third is arranged on inventive film filter to be open, filter membranous layer can be convenient for changing, it is convenient and efficient；
4, first cavity of the invention, the second cavity, third cavity cross-sectional area reduce successively, fixed supporting network increases
The contact area of supporting network and cavity extends the usage time of supporting network；
5, the height of inventive film filter is less than the height of the first opening, and tiny substance can be prevented in contaminant filter
It is accumulated between device and membrane filter, avoids the secondary pollution of water body；
6, the cross-sectional area in contamination precipitation pond of the present invention is gradually reduced from the top down, is conducive to the rapid precipitation of solid impurity
And removing.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of the present invention；
Attached drawing 2 is the structural schematic diagram of inventive film filter；
Attached drawing 3 is the structural schematic diagram of contaminant filter of the present invention.
Label shown in attached drawing：1, water inlet line；2, outlet conduit；3, filter body；31, lid；32, contamination precipitation
Pond；33, impurity delivery pipe；34, filter screen；41, the first cavity；42, the second cavity；43, third cavity；44, the second opening；
45, first filter membranous layer；46, middle filter membranous layer；47, refined filtration film layer；5, backwash tube；51, backwash head；52, blow-off pipe；6, protective shell.
Specific implementation mode
With reference to the drawings and specific embodiments, the invention will be further described.It should be understood that these embodiments are merely to illustrate
The present invention rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, this field
Technical staff can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims
Limited range.
Impurity is arranged on the water inlet line 1 in a kind of water supply line filter device, including water inlet line 1 and outlet conduit 2
Filter and membrane filter, by volume compared with to solid impurity and general classification of impurities handle, prevent solid impurity damage filter membrane
Layer.The contaminant filter includes filter body 3, and filter body 3 is preferably designed for cylinder, reduces impurity accumulation.Institute
The height for stating filter body 3 is more than the height of water inlet line 1, makes its sedimentation using the gravity of solid impurity itself, prevents solid
Body impurity hits filter screen 34, extends the usage time of filter screen 34.Lid 31, institute is arranged in the top of the filter body 3
It is hinged with filter body 3 to state lid 31, when needing to clean or replace filter screen 34, opening lid 31 can be operated, side
Just quick.The bottom end setting contamination precipitation pond 32 of the filter body 3, the contamination precipitation pond 32 is far from filter body 3
One end setting impurity delivery pipe 33, prevent solid impurity from accumulating in the device, ensure the normal use of filter device.The mistake
The first opening of side setting of filter body 3, first opening is interior to install filter screen 34, and solid impurity is prevented to enter membrane filtration
Device.First opening is connected to membrane filter, and the membrane filter includes the first cavity 41, the second cavity 42 and third cavity
43, first cavity 41, the second cavity 42 and third cavity 43 are sequentially communicated, and are carried out successively again to not different size of grain size
Classification is handled, and increases filter effect.It is miscellaneous that first cavity 41, the second cavity 42 and third cavity 43 are preferably designed for cylindrical reduction
Matter is accumulated, and energy loss is reduced；First cavity 41 is close to the second opening 44 of one end of filter body 3 setting, and described the
The cross-sectional area of two openings 44 gradually increases, and reduces the flow velocity of water body, reduces the pressure at filter membranous layer, increases filter effect.Institute
It states the first cavity 41 and first supporting network is set close to one end of the second opening 44, filter membrane is provided on first supporting network
Layer, filters out the bigger impurity of some grain sizes；The other end the second supporting network of setting of first cavity 41, described second
Filter membranous layer 46 in the online setting of support, filters out the impurity of some small particles；Second cavity 42 far from the first cavity 41 one
Third supporting network is arranged in end, and refined filtration film layer 47 is arranged on the third supporting network, filters out the impurity of some particle diameters；Described
The one end of three cavitys 43 far from the second cavity 42 is connected to outlet conduit 2, using multistage filtering, can be used for detaching the big of cloth suede bear
The impurity of the different-grain diameters such as particle, little particle, microparticle, the filtered water of formula reach water supply requirement.
In order to be cleaned in time to membrane filter, the dust in membrane filter and bacterium, the membrane filtration are removed
Back washing device is set on device, and the back washing device backwash tube 5 is respectively set and first filter membranous layer 45, middle filter membrane on the backwash tube 5
Layer 46 and 47 matched backwash head 51 of refined filtration film layer, the interior setting of the membrane filter and 51 matched blow-off pipe of backwash head
52, the blow-off pipe 52 is connected to impurity delivery pipe 33.
In order to be convenient for changing filter membranous layer, it is arranged and first filter membranous layer 45, middle filter membranous layer 46 and essence on the membrane filter
47 matched third of filter membranous layer is open, and block is arranged in the third opening, and taking down block can be replaced, convenient fast
It is prompt.
Further, the cross-sectional area of second cavity 42 be less than the first cavity 41, the third cavity 43 it is transversal
Area is less than the second cavity 42, the first cavity 41, the second cavity 42, third cavity 43 cross-sectional area reduce successively, fixed branch
Net is supportted, increases the contact area of supporting network and cavity, extends the usage time of supporting network.
Tiny substance is accumulated between contaminant filter and membrane filter in order to prevent, avoids the secondary pollution of water body,
The height of the membrane filter is less than the height of the first opening.
In order to which the cross-sectional area in the contamination precipitation pond 32 is gradually reduced from the top down, be conducive to the quick heavy of solid impurity
It forms sediment and removes.
Membrane filter is exposed to the weather in order to prevent, is increased the usage time of membrane filter, is arranged outside the membrane filter
Protective shell.
Embodiment：
Embodiment 1：
Impurity is arranged on the water inlet line 1 in a kind of water supply line filter device, including water inlet line 1 and outlet conduit 2
Filter and membrane filter, by volume compared with to solid impurity and general classification of impurities handle, prevent solid impurity damage filter membrane
Layer.The contaminant filter includes filter body 3, and the height of the filter body 3 is more than the height of water inlet line 1, profit
Make its sedimentation with the gravity of solid impurity itself, prevent solid impurity from hitting filter screen 34, extends the usage time of filter screen 34.
Lid 31 is arranged in the top of the filter body 3, and the lid 31 is hinged with filter body 3, needs to clean or replace
When strainer 34, opening lid 31 can be operated, convenient and efficient.The bottom end setting contamination precipitation pond of the filter body 3
32, the cross-sectional area in the contamination precipitation pond 32 is gradually reduced from the top down.The contamination precipitation pond 32 is far from filter body 3
One end setting impurity delivery pipe 33, prevent solid impurity from accumulating in the device, ensure the normal use of filter device.The mistake
The first opening of side setting of filter body 3, first opening is interior to install filter screen 34, and solid impurity is prevented to enter membrane filtration
Device.First opening is connected to membrane filter, and the membrane filter includes the first cavity 41, the second cavity 42 and third cavity
43, first cavity 41, the second cavity 42 and third cavity 43 are sequentially communicated, and are carried out successively again to not different size of grain size
Classification is handled, and increases filter effect.The cross-sectional area of second cavity 42 is less than the first cavity 41, the third cavity 43
Cross-sectional area is less than the second cavity 42.First cavity 41 is described close to the second opening 44 of one end of filter body 3 setting
The cross-sectional area of second opening 44 gradually increases, and reduces the flow velocity of water body, reduces the pressure at filter membranous layer, increases filter effect.
The first supporting network is arranged close to one end of the second opening 44 in first cavity 41, and filter membrane is provided on first supporting network
Layer, filters out the bigger impurity of some grain sizes；The other end of first cavity 41 is arranged on the second supporting network to be filtered in setting
Film layer 46 filters out the impurity of some small particles；One end setting third of second cavity 42 far from the first cavity 41 supports
Net, setting refined filtration film layer 47, filters out the impurity of some particle diameters on the third supporting network；The third cavity 43 is far from
One end of two cavitys 42 is connected to outlet conduit 2, using multistage filtering, can be used for detaching the bulky grain of cloth suede bear, little particle, micro-
The impurity of the different-grain diameters such as particle, the filtered water of formula reach water supply requirement.Back washing device is set on the membrane filter, it is described
Back washing device backwash tube 5, is respectively set on the backwash tube 5 and first filter membranous layer 45, middle filter membranous layer 46 and refined filtration film layer 47 match
The backwash head 51 of conjunction, the interior setting of the membrane filter and 51 matched blow-off pipe 52 of backwash head, the blow-off pipe 52 and impurity
Delivery pipe 33 is connected to.The advantageous effect of the present embodiment is：Back washing device is set, membrane filter can be cleaned in time,
Remove the dust in membrane filter and bacterium, it is ensured that filtered water can be safe and healthy；First cavity 41, the second cavity 42,
The cross-sectional area of third cavity 43 reduces successively, and fixed supporting network increases the contact area of supporting network and cavity, extends supporting network
Usage time；The cross-sectional area in contamination precipitation pond 32 is gradually reduced from the top down, be conducive to solid impurity rapid precipitation and
It removes.
Embodiment 2：
Impurity is arranged on the water inlet line 1 in a kind of water supply line filter device, including water inlet line 1 and outlet conduit 2
Filter and membrane filter, by volume compared with to solid impurity and general classification of impurities handle, prevent solid impurity damage filter membrane
Layer.The contaminant filter includes filter body 3, and the height of the filter body 3 is more than the height of water inlet line 1, profit
Make its sedimentation with the gravity of solid impurity itself, prevent solid impurity from hitting filter screen 34, extends the usage time of filter screen 34.
Lid 31 is arranged in the top of the filter body 3, and the lid 31 is hinged with filter body 3, needs to clean or replace
When strainer 34, opening lid 31 can be operated, convenient and efficient.The bottom end setting contamination precipitation pond of the filter body 3
32, one end setting impurity delivery pipe 33 of the contamination precipitation pond 32 far from filter body 3 prevents solid impurity in the device
Accumulation, ensures the normal use of filter device.The side setting first of the filter body 3 is open, in first opening
Filter screen 34 is installed, solid impurity is prevented to enter membrane filter.First opening is connected to membrane filter, the membrane filter
Height be less than first opening height.The membrane filter includes the first cavity 41, the second cavity 42 and third cavity 43, institute
It states the first cavity 41, the second cavity 42 and third cavity 43 to be sequentially communicated, classify successively again to not different size of grain size
Processing increases filter effect.First cavity 41 close to filter body 3 one end setting second opening 44, described second
The cross-sectional area of opening 44 gradually increases, and reduces the flow velocity of water body, reduces the pressure at filter membranous layer, increases filter effect.It is described
The first supporting network is arranged close to one end of the second opening 44 in first cavity 41, and filtering film layer is provided on first supporting network,
Filter out the bigger impurity of some grain sizes；Filter membranous layer in setting is arranged on the second supporting network in the other end of first cavity 41
46, filter out the impurity of some small particles；Third supporting network, institute is arranged in the one end of second cavity 42 far from the first cavity 41
It states and refined filtration film layer 47 is set on third supporting network, filter out the impurity of some particle diameters；The third cavity 43 is far from the second chamber
One end of body 42 is connected to outlet conduit 2, using multistage filtering, can be used for detaching bulky grain, little particle, the microparticle of cloth suede bear
The impurity of equal different-grain diameters, the filtered water of formula reach water supply requirement.Protective shell 6, the film mistake are set outside the membrane filter
Setting is open with first filter membranous layer 45, middle filter membranous layer 46 and 47 matched third of refined filtration film layer on filter, the third opening
Block is set.The advantageous effect of the present embodiment is：Protective shell 6 is set on membrane filter, prevents membrane filter from being exposed to the weather,
Increase the usage time of membrane filter；Third is arranged on membrane filter to be open, filter membranous layer can be convenient for changing, it is convenient and efficient；Film
The height of filter is less than the height of the first opening, can prevent tiny substance heap between contaminant filter and membrane filter
Product, avoids the secondary pollution of water body.
Claims (2)
1. a kind of water supply line filter device, including water inlet line (1) and outlet conduit (2), it is characterised in that：The water inlet pipe
It includes filter body (3), the filter master that contaminant filter and membrane filter, the contaminant filter are arranged on road (1)
The height of body (3) is more than the height of water inlet line (1), the top setting lid (31) of the filter body (3), the lid
(31) hinged with filter body (3), bottom end setting contamination precipitation pond (32) of the filter body (3), the impurity sinks
One end setting impurity delivery pipe (33) of the shallow lake pond (32) far from filter body (3), the side setting of the filter body (3)
First opening, the interior installation filter screen (34) of the first opening, first opening are connected to membrane filter, the membrane filter
Including the first cavity (41), the second cavity (42) and third cavity (43), first cavity (41), the second cavity (42) and
Three cavitys (43) are sequentially communicated, and first cavity (41) is close to the second opening (44) of one end of filter body (3) setting, institute
The cross-sectional area for stating the second opening (44) gradually increases, one end setting the of first cavity (41) close to the second opening (44)
One supporting network, setting prefiltration film layer (45) on first supporting network, the other end setting second of first cavity (41)
Supporting network, filter membranous layer (46) in being arranged on second supporting network, second cavity (42) far from the first cavity (41) one
Third supporting network is arranged in end, refined filtration film layer (47) is arranged on the third supporting network, the third cavity (43) is far from the second chamber
One end of body (42) is connected to outlet conduit (2)；
Back washing device is set on the membrane filter, and the back washing device backwash tube (5) is respectively set on the backwash tube (5)
With the matched backwash head (51) of first filter membranous layer (45), middle filter membranous layer (46) and refined filtration film layer (47), set in the membrane filter
It sets and is connected to impurity delivery pipe (33) with backwash head (51) matched blow-off pipe (52), the blow-off pipe (52)；
Setting is opened with first filter membranous layer (45), middle filter membranous layer (46) and refined filtration film layer (47) matched third on the membrane filter
Mouthful, the third opening setting block (48)；
The cross-sectional area of second cavity (42) is less than the first cavity (41), and the cross-sectional area of the third cavity (43) is less than
Second cavity (42)；
The height of the membrane filter is less than the height of the first opening；The cross-sectional area of the contamination precipitation pond (32) is from the top down
It is gradually reduced.
2. a kind of water supply line filter device according to claim 1, it is characterised in that：Guarantor is set outside the membrane filter
Protective case (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510292000.8A CN105036381B (en) | 2015-06-01 | 2015-06-01 | A kind of water supply line filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510292000.8A CN105036381B (en) | 2015-06-01 | 2015-06-01 | A kind of water supply line filter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105036381A CN105036381A (en) | 2015-11-11 |
| CN105036381B true CN105036381B (en) | 2018-11-06 |
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ID=54443431
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510292000.8A Active CN105036381B (en) | 2015-06-01 | 2015-06-01 | A kind of water supply line filter device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002550A (en) * | 2016-12-21 | 2018-05-08 | 佛山市顺德区美的饮水机制造有限公司 | For water purifier antiscaling device and there is its water purifier |
| CN106809907B (en) * | 2016-12-25 | 2020-04-21 | 重庆杰鑫直饮水净化设备有限公司 | A clarification plant for drinking water |
| CN111437645B (en) * | 2019-01-17 | 2025-01-28 | 中国石油天然气股份有限公司 | Filters |
| CN112225333A (en) * | 2020-10-28 | 2021-01-15 | 江西渥泰环保科技有限公司 | Intelligent reverse osmosis water purifier |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201168507Y (en) * | 2008-01-07 | 2008-12-24 | 赵新力 | Membrane filter |
| CN204319941U (en) * | 2014-12-03 | 2015-05-13 | 山东鑫和供水设备有限公司 | A kind of adverse current slow pressure back-flushing filter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101433782A (en) * | 2008-11-24 | 2009-05-20 | 中国海洋大学 | Cascaded filter for purifying complex granule foreign substance and preparation method thereof |
| CN202289674U (en) * | 2011-10-19 | 2012-07-04 | 中国石油化工股份有限公司 | Impurity filter for water supply pipeline |
| CN103083968A (en) * | 2011-11-04 | 2013-05-08 | 海门市大生水处理设备（厂）有限公司 | Pipe impurity filter |
| CN204689763U (en) * | 2015-06-01 | 2015-10-07 | 卢云飞 | A kind of water supply line filtration unit |
-
2015
- 2015-06-01 CN CN201510292000.8A patent/CN105036381B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201168507Y (en) * | 2008-01-07 | 2008-12-24 | 赵新力 | Membrane filter |
| CN204319941U (en) * | 2014-12-03 | 2015-05-13 | 山东鑫和供水设备有限公司 | A kind of adverse current slow pressure back-flushing filter |
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| CN105036381A (en) | 2015-11-11 |
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Address after: 050000 No. 1057, Zhongshan East Road, High tech Zone, Shijiazhuang, Hebei Patentee after: Shijiazhuang High-tech Industrial Development Zone Water Supply and Drainage Co. Address before: 050000 No. 18, Haihe Road, high tech Zone, Shijiazhuang City, Hebei Province Patentee before: Shijiazhuang High-tech Industrial Development Zone Water Supply and Drainage Co. |
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