CN108245966A - A kind of small pipeline is from pure and impure ring water filter - Google Patents
A kind of small pipeline is from pure and impure ring water filter Download PDFInfo
- Publication number
- CN108245966A CN108245966A CN201810005377.4A CN201810005377A CN108245966A CN 108245966 A CN108245966 A CN 108245966A CN 201810005377 A CN201810005377 A CN 201810005377A CN 108245966 A CN108245966 A CN 108245966A
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- CN
- China
- Prior art keywords
- strainer
- fixed
- blowdown
- filter
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 27
- 239000007787 solid Substances 0.000 claims description 8
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 239000010865 sewage Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 description 11
- 239000012535 impurity Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6407—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
- B01D29/6415—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes with a rotary movement with respect to the filtering element
Abstract
A kind of small pipeline is installed on turbid circulating water pipeline, upper cover, lower cylinder, strainer and strainer brush including hollow structure from pure and impure ring water filter；Upper cover is connect with lower cylinder, and inner wall is fixed with the stent that middle part opens up axis hole；Lower cylinder includes filter cylinder, blowdown inner tube and blowdown outer tube, cartridge interior is fixed with annular seal lid, sealing cover outer annular diameter is less than filter cylinder internal diameter, inner ring is fixed with the stent that middle part opens up axis hole, blowdown inner tube upper end is fixed with sealing cover inner ring, and blowdown outer tube is connected by blowdown inner tube side wall with blowdown inner tube；Strainer is placed in filter cylinder, and strainer brush is located in strainer；Strainer brush includes frame, shaft, hairbrush and impeller；The midpoint of shaft and lengths of frame is fixed, and upper and lower end is rotatablely connected respectively with the axis hole in upper cover, lower cylinder, and lower end is circumferentially fixed impeller；Hairbrush is fixed on left and right 2 side levers of frame.The filter can automatically clear up strainer, extend the service life of filter.
Description
Technical field
The present invention relates to a kind of small pipeline from pure and impure ring water filter, belong to metallurgical technical field of water treatment equipment.
Background technology
Large number of equipment cooling water is needed in metallurgy industry production process, whether is open circuit water supply and water according to component cooling water
Matter situation is different, generally can be divided into two kinds of clean circulating water and turbid circulating water；Wherein turbid circulating water water quality is poor, and mud is had in cyclic process
The solid impurities such as dirt, scale, scum are with water movement, such as can frequently occur occluding device influence without processing and normally produce
Situation.
For most domestic steel plant, turbid circulating water processing conventional method includes large capacity sedimentation basin and filter pipeline
Two kinds of device；Sedimentation basin is more demanding to capacity, occupation of land etc., so piping filter application is more universal.It is domestic at present generally
In piping filter, the piping filter stock size for having self-cleaning function is larger, complicated and expensive,
The smaller pipeline of inapplicable size；And the Y-type pipe filter of small pipeline does not have self-cleaning function, is blocked up once there is pipeline
Plug need to carry out filter frequently dismounting cleaning, while labor intensity is increased, influence normal rhythm of production, and
And frequently dismounting can shorten the service life of y-type filter, influence its filter effect.
Invention content
The technical problems to be solved by the invention are to provide a kind of small pipeline from pure and impure ring water filter, the filter without
Any external impetus is needed, strainer is cleared up automatically, and filter effect is good in the case where not shutting down dismounting, substantially extended
The service life of filter, ensure that normal production.
Solving the technical solution of above-mentioned technical problem is：
A kind of small pipeline is from pure and impure ring water filter, including upper cover, lower cylinder, strainer and strainer brush；Upper cover
For hollow structure, the upper end is connect with turbid circulating water pipeline, and lower end is connect with lower cylinder, and inner wall is fixed with middle part and opens up axis hole
Stent；Lower cylinder includes filter cylinder, blowdown inner tube and blowdown outer tube, and filter cylinder lower end is connect with turbid circulating water pipeline, and cartridge interior is solid
Surely there is annular seal lid, sealing cover outer annular diameter is less than filter cylinder internal diameter, and annular diameters direction is fixed with the branch that middle part opens up axis hole
Frame, blowdown inner tube upper end are fixed with sealing cover inner ring, and blowdown outer tube one end is connected by blowdown inner tube side wall with blowdown inner tube；Filter
Net is placed in filter cylinder, and strainer brush is located in strainer；Strainer is cylindrical shape；Strainer brush includes frame, shaft, hairbrush and impeller；Turn
The midpoint of axis and lengths of frame is fixed, and upper and lower end rotates respectively with the axis hole of mid-stent in upper cover, lower cylinder to be connected
It connects, lower end is circumferentially fixed impeller；Frame includes left and right 2 side levers, and hairbrush is fixed on 2 side levers.
From pure and impure ring water filter, the upper cover includes an inverted funnel-form and becomes a kind of above-mentioned small pipeline
Diameter pipe, reducer pipe are connected by the filter cylinder of flange and lower cylinder；The annular seal lid of the cartridge interior passes through more struts
It is fixed with filter cylinder inner wall, annular seal lid plane is parallel with the transversal disk of filter cylinder；In the inner wall of reducer pipe and annular seal lid
Upper surface is respectively fixed with the snap ring that diameter matches with strainer diameter, and snap ring plane is parallel with the transversal disk of reducer pipe, filter
Network interface card is set on upper and lower 2 snap rings；Inside upper cover and the fixed horizontal stand of annular seal lid inner ring be cross and
Place plane is mutually parallel, and the center of stent is provided with axis hole；4 ends and the reducing inside pipe wall of upper cover internal stent are consolidated
Fixed, 4 ends of ring support and the inner ring inner wall of annular seal lid are fixed in annular seal lid.
A kind of above-mentioned small pipeline is from pure and impure ring water filter, and the frame of the strainer brush is rectangular frame, and hairbrush is solid
Due on left and right 2 side levers of rectangular frame, the midpoint of shaft and rectangular frame length is fixed, and lower end is passed through in lower cylinder
The axis hole of mid-stent；At least 2 impellers are along the circumferential average laying in shaft lower end, and every paddle wheel plane is horizontal by 30-60 °
Angle, the diameter of a circle that wheel rotation is formed are less than the annular diameters of annular seal lid.
From pure and impure ring water filter, the blowdown inner tube is located at below annular seal lid a kind of above-mentioned small pipeline, is
Bowl structure, the rim of a bowl and annular seal lid inner ring are circumferentially fixed；Blowdown outer tube one end is connected across cartridge wall with blowdown inner tube,
The other end is connect with sewage general pipeline, and control valve is equipped on blowdown outer tube.
A kind of above-mentioned small pipeline is from pure and impure ring water filter, frame height and the strainer height phase of the strainer brush
Match, the spacing of hairbrush matches with strainer internal diameter on the left and right side lever of frame.
A kind of above-mentioned small pipeline further includes fixed with filter cylinder lower end from pure and impure ring water filter, the lower cylinder
Bowl-shape reducer pipe and with the straight tube that mouth is connect under bowl-shape reducer pipe, the lower end of straight tube is connect with turbid circulating water pipeline.
The present invention the course of work be：
Under normal operating conditions, the control valve on blowdown outer tube is closed, and blowdown outer tube is closed, and water flows through upper cap
The reducer pipe of body enters interior, and after strainer filtering, including solid impurity is intercepted by strainer, fraction solids contamination precipitation arrives
In bowl-shape blowdown inner tube, part is then attached to strainer inner wall, after the flow after filtering is by strainer, through strainer and filter cylinder inner wall
Between gap flow into bowl-shape reducer pipe and straight tube, eventually enter into turbid circulating water pipeline；
Under cleaning state, the control valve on blowdown outer tube is opened, blowdown outer tube is in blowdown state, after flow enters strainer,
Enter outside blowdown outer tube under differential pressure action and arrange, impeller is painted in water impact effect lower band electric filter brush rotation, strainer at this time
Hairbrush will be attached under the impurity brush of strainer inner wall, with accumulating in together with the impurity in bowl-shape blowdown inner tube, carried secretly by flow
It from blowdown outer tube and discharges, interior is made to restore cleaning.
Beneficial effects of the present invention are：
The present invention, without any external impetus, can be realized from pure and impure ring water filter by flow pressure difference inside and outside turbid circulating water pipeline
The self-cleaning function of strainer effectively reduces the workload of frequent disassembly, cleaning strainer, substantially extends the continuous firing of filter
Time ensure that normal production；The configuration of the present invention is simple, quick and easy for installation, of low cost, filter effect are better than existing Y
Type filter, promotion prospect are wide.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is assembling section of the present invention；
Fig. 3 is upper cover internal structure schematic diagram；
Fig. 4 is lower cylinder schematic top plan view；
Fig. 5 is strainer brush schematic diagram；
In figure label for：Cylindrical filter screen 1, strainer brush 2, axis hole 3, cross bracket 4, filter cylinder 5, bowl-shape blowdown inner tube 6, blowdown
Outer tube 7, annular seal lid 8, rectangular frame 9, shaft 10, hairbrush 11, impeller 12, reducer pipe 13, strut 14, snap ring 15, control
Valve 16, bowl-shape reducer pipe 17, straight tube 18, top straight tube 19.
Specific embodiment
Fig. 1~Fig. 3 shows that a kind of small pipeline of the present invention is from pure and impure ring water filter, including upper cover, lower sleeve
Body, cylindrical filter screen 1 and strainer brush 2；Upper cover includes top straight tube 19 and inverted funnel-form reducer pipe 13；Top straight tube
19 upper end is connect by flange with turbid circulating water pipeline, and lower end is fixedly connected with the upper port of reducer pipe 13；Reducer pipe 13 it is interior
Wall is fixed with snap ring 15, and cross bracket 4, the center of cross bracket 4 and the center of circle weight of snap ring 15 are fixed with inside snap ring 15
It closes, the center of cross bracket 4 is provided with axis hole 3, and snap ring 15 and cross bracket 4 are in approximately the same plane and are parallel to reducer pipe
Plane where 14 transversal circles；
Fig. 1, Fig. 2 and Fig. 4 show, lower cylinder includes filter cylinder 5, the bowl-shape reducer pipe 17 that is fixedly connected with the lower end of filter cylinder 5 and
The straight tube 18 of the lower mouth connection of bowl-shape reducer pipe 17, bowl-shape blowdown inner tube 6 and blowdown outer tube 7；The lower end of straight tube 18 and turbid circulating water
Pipeline connects；The reducer pipe 13 of upper cover is connect by flange with the upper port of filter cylinder 5,13 lower port diameter of reducer pipe and filter
The diameter of cylinder 5 is identical；Filter cylinder 5 is internally provided with annular seal lid 8, and annular seal lid 8 along 5 inner wall of filter cylinder by being circumferentially averaged cloth
If the inner walls of more struts 14 and filter cylinder 5 fix, the upper surface of annular seal lid 8 is fixed with snap ring 15, annular seal lid 8
For outer annular diameter between the diameter of filter cylinder 5 and cylindrical filter screen 1, inner ring is fixed with cross bracket 4, cross bracket 4 with
Annular seal lid 8 is in same plane and parallel with 5 transversal disk of filter cylinder, and it is upper and lower 2 that annular seal lid 8, which divides filter cylinder 5,
Point, cylindrical filter screen 1 is positioned over the top half of filter cylinder 5, and height is identical with the height of 5 top half of filter cylinder；Cylindrical shape filter
The diameter of net 1 and the diameter of snap ring 15 match, thereon, lower end be arranged in snap ring inside upper cover reducer pipe 13 respectively
15 and filter cylinder 5 inside snap ring 15 on；Bowl-shape blowdown inner tube 6 is located at the lower section of annular seal lid 8, the rim of a bowl and annular seal lid
8 inner ring is circumferentially fixed；One end of blowdown outer tube 7 passes through the side wall of filter cylinder 5 to be connected with blowdown inner tube 6, and the other end is total with blowdown
Pipeline connects, and control valve 16 is equipped on blowdown outer tube 7；
Fig. 2 and Fig. 5 show that strainer brush 2 is wholy set in cylindrical filter screen 1；Strainer brush 2 include rectangular frame 9, shaft 10,
Hairbrush 11 and 3 impellers 12；The height of rectangular frame 9 and the height of cylindrical filter screen 1 match, and two row hairbrush 11 are fixed respectively
In on left and right 2 side levers of rectangular frame 9, spacing and the internal diameter of cylindrical filter screen 1 between two row hairbrush 11 match, and turn
Axis 10 and the midpoint of 9 length of rectangular frame are fixed, and the upper end passes through the central shaft hole 3 of 13 internal cruciform stent 4 of reducer pipe, under
The central shaft hole 3 across cross bracket in lower cylinder 4 is held, shaft 10 can rotate in axis hole 3, when shaft 10 rotates,
Hairbrush 11 on 9 left and right side lever of rectangular frame clears up the inner wall of cylindrical filter screen 1；The lower end of shaft 10 is circumferentially average
3 identical impellers 12 are fixed with, impeller 12 is rectangle, and place plane is formed horizontal by 60 ° of angles, the rotation of impeller 12
Diameter of a circle be less than annular seal lid 8 annular diameters.
The present invention the course of work be：
Under normal operating conditions, the control valve 16 on blowdown outer tube 7 is closed, and blowdown outer tube 7 is closed, and water flows through
The reducer pipe 13 of portion's cover enters the inside of cylindrical filter screen 1, and after the filtering of cylindrical filter screen 1, solid impurity is filtered by cylindrical shape
Including net 1 intercepts, in fraction solids contamination precipitation to bowl-shape blowdown inner tube 6, part is then attached to the inner wall of cylindrical filter screen 1,
After flow after filtering is by cylindrical filter screen 1, bowl-shape reducing is flowed into through the gap between 5 inner wall of cylindrical filter screen 1 and filter cylinder
Pipe 17 and straight tube 18, eventually enter into turbid circulating water pipeline；
Under cleaning state, the control valve 16 on blowdown outer tube 7 is opened, blowdown outer tube 7 is in blowdown state, and flow enters cylinder
After shape strainer 1, enter outside blowdown outer tube 7 under differential pressure action and arrange, impeller 12 is in water impact effect lower band electric filter brush 2 at this time
It rotates, the hairbrush 11 on strainer brush 2 will be attached under the impurity brush of 1 inner wall of cylindrical filter screen, with accumulating in bowl-shape blowdown inner tube 6
In impurity together, discharged by flow entrainment of from blowdown outer tube 7, make strainer 1 inside restore cleaning.
The present invention from pure and impure ring water filter without any external impetus, by flow pressure difference inside and outside turbid circulating water pipeline
It realizes the self-cleaning function of strainer, effectively reduces the workload of frequent disassembly, cleaning strainer, substantially extend continuing for filter
Working time ensure that normal production.
Claims (6)
1. a kind of small pipeline is from pure and impure ring water filter, it is characterised in that：It includes upper cover, lower cylinder, strainer（1）
With strainer brush（2）；Upper cover is hollow structure, and the upper end is connect with turbid circulating water pipeline, and lower end is connect with lower cylinder, inner wall
It is fixed with middle part and opens up axis hole（3）Stent（4）；Lower cylinder includes filter cylinder（5）, blowdown inner tube（6）With blowdown outer tube（7）,
Filter cylinder（5）Lower end connect with turbid circulating water pipeline, filter cylinder（5）Inside be fixed with annular seal lid（8）, annular seal lid（8）
Outer annular diameter be less than filter cylinder（5）Internal diameter, annular diameters direction be fixed with middle part open up axis hole（3）Stent（4）, in blowdown
Pipe（6）Upper end and annular seal lid（8）Inner ring fix, blowdown outer tube（7）One end pass through blowdown inner tube（6）Side wall with
Blowdown inner tube（6）Connection；Strainer（1）It is placed in filter cylinder（5）In, strainer brush（2）Positioned at strainer（1）In；Strainer（1）For cylindrical shape；
Strainer brush（2）Including frame（9）, shaft（10）, hairbrush（11）And impeller（12）；Shaft（10）With frame（9）The midpoint of length
It is fixed, upper and lower end respectively with stent in upper cover, lower cylinder（4）The axis hole at middle part（3）Rotation connection, lower end are circumferential
It is fixed with impeller（12）；Frame（9）Including left and right 2 side levers, hairbrush（11）It is fixed on 2 side levers.
2. a kind of small pipeline as described in claim 1 is from pure and impure ring water filter, it is characterised in that：The upper cover packet
Include an inverted funnel-form reducer pipe（13）, reducer pipe（13）Pass through flange and the filter cylinder of lower cylinder（5）Connection；The filter
Cylinder（5）Internal annular seal lid（8）Pass through more struts（14）With filter cylinder（5）Inner wall fix, annular seal lid（8）Place
Plane and filter cylinder（5）Transversal disk it is parallel；In reducer pipe（13）Inner wall and annular seal lid（8）Upper surface it is solid respectively
Surely there are diameter and strainer（1）The snap ring that matches of diameter（15）, snap ring（15）Place plane and reducer pipe（13）Transversal circle
Plane is parallel, strainer（1）It is arranged in upper and lower 2 snap rings（15）On；Upper cover inside and annular seal lid（8）Inner ring is fixed
Stent（4）It is cross and place plane is mutually parallel, stent（4）Center is provided with axis hole（3）；Upper cover internal stent
（4）4 ends and reducer pipe（13）Inner wall fix, annular seal lid（8）The stent of inner ring（4）4 ends with it is cyclic annular
Sealing cover（8）Inner ring inner wall fix.
3. a kind of small pipeline as described in claim 1 is from pure and impure ring water filter, it is characterised in that：The strainer brush（2）
Frame（9）For rectangular frame, hairbrush（11）It is fixed on rectangular frame（9）On left and right 2 side levers, shaft（10）With rectangle frame
Frame（9）The midpoint of length is fixed, and lower end passes through stent in lower cylinder（4）The axis hole at middle part（3）；At least 2 impellers（12）
Along shaft（10）The circumferential direction of lower end is average to be laid, impeller（12）Plane is horizontal by 30-60 ° of angle, impeller（12）Rotate shape
Into diameter of a circle be less than annular seal lid（8）Annular diameters.
4. a kind of small pipeline as described in claim 1 is from pure and impure ring water filter, it is characterised in that：The blowdown inner tube
（6）Positioned at annular seal lid（8）Lower section, be bowl structure, the rim of a bowl and annular seal lid（8）Inner ring it is circumferentially fixed；Row
Dirty outer tube（7）One end pass through filter cylinder（5）Side wall and blowdown inner tube（6）Connection, the other end are connect with sewage general pipeline, blowdown
Outer tube（7）On control valve is installed（16）.
5. a kind of small pipeline as described in claim 1 or 3 is from pure and impure ring water filter, it is characterised in that：The strainer brush
（2）Frame（9）Height and strainer（1）Height match, frame（9）Hairbrush on left and right side lever（11）Between spacing
With strainer（1）Internal diameter match.
6. a kind of small pipeline as described in claim 1 is from pure and impure ring water filter, it is characterised in that：The lower cylinder is also
Including with filter cylinder（5）The fixed bowl-shape reducer pipe in lower end（17）With with bowl-shape reducer pipe（17）Lower mouth connection straight tube
（18）, straight tube（18）Lower end connect with turbid circulating water pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005377.4A CN108245966A (en) | 2018-01-03 | 2018-01-03 | A kind of small pipeline is from pure and impure ring water filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005377.4A CN108245966A (en) | 2018-01-03 | 2018-01-03 | A kind of small pipeline is from pure and impure ring water filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108245966A true CN108245966A (en) | 2018-07-06 |
Family
ID=62725994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810005377.4A Withdrawn CN108245966A (en) | 2018-01-03 | 2018-01-03 | A kind of small pipeline is from pure and impure ring water filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108245966A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243089A (en) * | 2019-06-10 | 2019-09-17 | 湖南达道新能源开发有限公司 | A kind of double-deck heat exchange pipeline of geothermal energy resources exploitation |
| CN111359300A (en) * | 2020-03-06 | 2020-07-03 | 大连民族大学 | Self-cleaning formula sewage filter equipment |
| CN114873700A (en) * | 2022-05-06 | 2022-08-09 | 温州中越园林建设有限公司 | Sewage treatment device for municipal works |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009050548A2 (en) * | 2007-10-18 | 2009-04-23 | Bruno Bucci | Equipment for the cleaning of filters in water distribution plants |
| CN105477922A (en) * | 2015-12-31 | 2016-04-13 | 刘洋豪 | Pre-filter with function of automatically cleaning filter screen |
-
2018
- 2018-01-03 CN CN201810005377.4A patent/CN108245966A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009050548A2 (en) * | 2007-10-18 | 2009-04-23 | Bruno Bucci | Equipment for the cleaning of filters in water distribution plants |
| CN105477922A (en) * | 2015-12-31 | 2016-04-13 | 刘洋豪 | Pre-filter with function of automatically cleaning filter screen |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243089A (en) * | 2019-06-10 | 2019-09-17 | 湖南达道新能源开发有限公司 | A kind of double-deck heat exchange pipeline of geothermal energy resources exploitation |
| CN111359300A (en) * | 2020-03-06 | 2020-07-03 | 大连民族大学 | Self-cleaning formula sewage filter equipment |
| CN111359300B (en) * | 2020-03-06 | 2021-08-03 | 大连民族大学 | Self-cleaning formula sewage filter equipment |
| CN114873700A (en) * | 2022-05-06 | 2022-08-09 | 温州中越园林建设有限公司 | Sewage treatment device for municipal works |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180706 |
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| WW01 | Invention patent application withdrawn after publication |