CN105999809A - Filter and sewage absorption device thereof - Google Patents
Filter and sewage absorption device thereof Download PDFInfo
- Publication number
- CN105999809A CN105999809A CN201610519001.6A CN201610519001A CN105999809A CN 105999809 A CN105999809 A CN 105999809A CN 201610519001 A CN201610519001 A CN 201610519001A CN 105999809 A CN105999809 A CN 105999809A
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- filter
- sewage
- water
- sewage suction
- suction device
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- 239000010865 sewage Substances 0.000 title claims abstract description 87
- 238000010521 absorption reaction Methods 0.000 title abstract 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 100
- 238000011010 flushing procedure Methods 0.000 claims abstract description 61
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 75
- 238000001914 filtration Methods 0.000 claims description 31
- 230000033001 locomotion Effects 0.000 claims description 16
- 239000012535 impurity Substances 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 15
- 238000011045 prefiltration Methods 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
- 238000005202 decontamination Methods 0.000 abstract 2
- 230000003588 decontaminative effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 description 13
- 241000195493 Cryptophyta Species 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000003014 reinforcing effect Effects 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 8
- 238000000746 purification Methods 0.000 description 8
- 238000011109 contamination Methods 0.000 description 5
- 238000011049 filling Methods 0.000 description 5
- 230000000740 bleeding effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 241000195663 Scenedesmus Species 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002779 inactivation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003319 supportive effect Effects 0.000 description 2
- 241001478806 Closterium Species 0.000 description 1
- 241000899885 Desmidiales Species 0.000 description 1
- 241000192710 Microcystis aeruginosa Species 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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- 229910003460 diamond Inorganic materials 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
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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
- B01D29/62—Regenerating the filter material in the filter
-
- 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
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the 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
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/603—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by flow measuring
-
- 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
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/606—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by pressure measuring
-
- 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
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- 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
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/08—Regeneration of the filter
- B01D2201/081—Regeneration of the filter using nozzles or suction devices
- B01D2201/082—Suction devices placed on the cake side of the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/08—Regeneration of the filter
- B01D2201/081—Regeneration of the filter using nozzles or suction devices
- B01D2201/084—Nozzles placed on the filtrate side of the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/08—Regeneration of the filter
- B01D2201/086—Regeneration of the filter using fluid streams co-current to the filtration direction
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention provides a filter and a sewage absorption device. The sewage absorption device comprises a sewage absorption pipe, a sewage discharge component and a controller, wherein the sewage absorption pipe is arranged in a raw water cavity of the filter; a sewage absorption opening of the sewage absorption pipe is corresponding to a filter screen of the filter; the sewage discharge component is used for discharging sewage in the raw water cavity; the sewage absorption pipe is connected with the sewage discharge component; the controller is capable of controlling the starting and stopoping of a sewage pump according to any one of the following control conditions or a combination thereof, and the control conditions comprise time, a pressure value at the water inlet of a filter, a pressure value at the water outlet of the filter, pressure difference between the water inlet and water outlet of the filter, flow at the water inlet of the filter, and flow at the water outlet of the filter. The sewage absorption device is capable of automatically clearing the filter screen by virtue of the controller; when the controller detects that a start condition is reached, back flushing is started; sewage on the filter screen can be absorbed away by the sewage absorption pipe, manual filter detachment and decontamination operation are omitted, and the decontamination efficiency and the filter operation efficiency are improved.
Description
Technical field
The present invention relates to liquid filtration art, in particular to a kind of filter and sewage suction device thereof.
Background technology
Water is the natural resources that the mankind depend on for existence, and utilization and the process of water resource are closely bound up with the life of people, in rivers lake
The natural waters such as sea all contain the biologies such as substantial amounts of zooplankton, algae, antibacterial, pathogen.Especially in fresh water, along with work
The development of agricultural and the change of environment, the various pollutant entered in water are continuously increased, and accelerate the eutrophication of water body.Industry
It is required for filtering, to protect resource and ecosystem with water, well water, river, lake water, air-conditioner circulating water, ballast water for ship etc..
Filter is to remove the effective measures of different kind organism in water, but algae, especially scenedesmus, can be attached to antibacterial to have in water simultaneously
On machine thing fragment and other water plant bodies, forming gelatinous layer, adsorb Organic substance, easily blocking filter element mesh, had a strong impact on
The filter effect of filter, even causes damage to filter.
In the utilization of water resource, these biologies could utilize, at common water after must processing in next operation
Science and engineering skill is to filter and inactivation.Filtration be by filter by the biology in water by physics filter screen by the way of utilize water to pass through plan
It processes, thus removes organism in water, can remove other solid impurities oarse-grained in water simultaneously.Inactivation mode typically uses
UV treatment technology, irradiates plan by ultraviolet and utilizes water that biology therein carries out inactivation treatment, thus by the biology in water
Kill, but the bulky grain magazines such as its corpse yet suffer from water, it is still necessary to subsequent technique processes.And a variety of biologies in water
Toleration is very strong, and the especially scenedesmus vitality in fresh water field is extremely strong, uses common UV treatment technology to be difficult to kill this
A little algae, experiment proves that using ultraviolet to irradiate rear section algae does not the most inactivate, and can stimulate these algal growns on the contrary, by
This understands by ultraviolet treatment with irradiation such algae difficulty very big, a kind of biological mistake that can be difficult to these inactivate
Filter and can with the nonclogging high-precision filter of continuous firing for water treatment field more and more important.
And at field of industrial production, especially technical field of hydraulic pressure, hydraulic oil is commonly used to transmitting movement and power in plant equipment,
Being lubricated kinematic pair, cool down, the hydraulic oil of cleaning is one of essential condition of normally working of hydraulic system.Because it is uncontrollable
The impact of factor, can build up various dirt in hydraulic oil, such as the metal dust of generation, rubber grain, the hydraulic oil oxygen of wearing and tearing
Change the dirts such as the rotten jelly produced, oil contamination all can be made to reduce mechanical performance and even cannot normally use.
In sum, no matter at life or industrial circle, the process technique filtered is used to be very important.Such as filtering
During Organic substance in water, general use high-accuracy filter to remove the algae more than 10 microns, by the way of physical filtering very
Reduce the quantity of algae in big degree, thus reduce the power of follow-up algae removal system.This high-precision filter is generally at big stream
The processing procedure of amount and high flow rate is very easy to filter net jam phenomenon occur, causes defecator cisco unity malfunction, need frequency
Numerous dismounting carries out manual cleaning, not only reduces filter efficiency, and adds cost of labor.
Summary of the invention
Present invention is primarily targeted at a kind of filter of offer and sewage suction device thereof, to solve prior art is cleared up filter effect
Rate is low, cost of labor high problem.
To achieve these goals, according to an aspect of the invention, it is provided the sewage suction device of a kind of filter, including: inhale
Dirty pipe, is arranged in the former water cavity of filter, and the sewage discharge tube of dirt sucking tube is arranged in correspondence with the drainage screen of filter；Blowdown assembly,
Dirt in discharging former water cavity, dirt sucking tube is connected with blowdown assembly；Controller, according to any one control condition following
Or control condition combination control of sewage disposal pump start and stop, control condition includes: the time, filter water inlet force value,
The force value of the water outlet of filter, pressure differential between the water inlet of filter and outlet, the stream of water inlet of filter
Amount, the flow of outlet of filter.
Further, blowdown assembly includes dredge pump and blow-off line, and the arrival end of blow-off line is connected with dirt sucking tube, dredge pump
It is connected with blow-off line and is used for extracting the dirt sucked by dirt sucking tube out.
Further, sewage suction device also includes flushing line, and flushing line includes: jet pipe, and jet pipe is arranged on filter
Water-purifying cavity, the jet orifice of jet pipe is towards the surface configuration of the drainage screen of filter.
Further, flushing line also includes that flushing pump, jet pipe are connected with the port of export of flushing pump.
Further, jet orifice is arranged accordingly with sewage discharge tube.
Further, the water inlet of flushing line is connected with the water-purifying cavity of filter.
Further, flushing line also includes that impurity prefilter, impurity prefilter are arranged in flushing line.
Further, the filtering accuracy of impurity prefilter is less than or equal to the diameter of jet orifice.
Further, the diameter of jet orifice in the range of jet pipe diameter 1/1000 to 1/10.
Further, drainage screen is cylindrical, and the distance of the sewage discharge tube distance drainage screen of dirt sucking tube is less than or equal to the interior of drainage screen
The 1/2 of footpath.
Further, sewage suction device also includes: drive motor；Power transmission shaft, dirt sucking tube is connected with power transmission shaft and is driven by power transmission shaft
Motion；Drive mechanism, power transmission shaft by drive mechanism with drive motor is connected, drive mechanism to power transmission shaft export rotary motion with
Displacement movement along the axial direction of power transmission shaft.
Further, sewage suction device also includes jet pipe, and jet pipe is arranged on the water-purifying cavity of filter, the jet orifice court of jet pipe
Surface configuration to the drainage screen of filter；Jet pipe is connected with power transmission shaft and is driven motion by power transmission shaft.
Further, drive mechanism includes drive screw, and it is axial that the rotation driving motor is converted into along power transmission shaft by drive screw
The displacement movement in direction.
Further, drive mechanism also includes that travel switch, travel switch electrically connect with driving motor, is used for controlling to drive motor
Rotating.
According to another aspect of the present invention, additionally providing a kind of filter, including housing and drainage screen, drainage screen is by housing
Cavity be divided into water-purifying cavity and former water cavity, filter also includes above-mentioned sewage suction device.
Application technical scheme, sewage suction device can realize the automatic cleaning to drainage screen by controller, and controller is examined
When survey reaches entry condition, i.e. start dredge pump, absorb the dirt on drainage screen by dirt sucking tube, play the mesh of clean filtering net
, thus eliminate the work that artificial unloading's filter carries out removing contamination, saved manpower, also improve simultaneously the efficiency removed contamination with
And the efficiency that filter runs.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing a further understanding of the present invention, and the present invention's is schematic real
Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structure diagram of a kind of embodiment of the sewage suction device according to the present invention；
Fig. 2 shows the structure diagram of the another kind of embodiment of the sewage suction device according to the present invention；
Fig. 3 shows the structure diagram of a kind of embodiment not including jet pipe of the sewage suction device according to the present invention；
Fig. 4 shows the structure diagram of the embodiment of a kind of unilateral flushing type of the sewage suction device according to the present invention；
Fig. 5 shows the structural representation of a kind of embodiment of the filter according to the present invention；
Fig. 6 shows the structural representation of the another kind of embodiment of the filter according to the present invention.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
41, motor is driven；44, screw rod chamber；46, travel switch；36, developing room；111, access hole；107, the first end socket
End cap；106, cylinder；117, pressure difference transmitter；118, air bleeding valve；109, connecting bolt；108, the second end covers；
110, end socket external flange；104, water inlet；116, Pressure gauge；34, intake is rinsed；105, outlet；112, punching
Wash water filling port；21, blow-off line；115, reinforcing ring；101, former water cavity；32, jet orifice；33, flushing pump；35, impurity
Prefilter；11, sewage discharge tube；10, dirt sucking tube；102, water-purifying cavity；103, drainage screen；31, jet pipe；113, U-shaped card；
43, transmission blowdown chamber；119, drainage screen end socket；120, drainage screen handle；474, screen modules sleeve block；48, transmission
Axle connects seat；42, transmission water-purifying cavity；471, power transmission shaft base；45, drive screw；114, drainage screen guide ring；472、
Driving sleeve；473, flushing pollution discharge axle sleeve.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
According to an aspect of the invention, it is provided the sewage suction device of a kind of filter, as shown in Figures 1 to 4, this sewage suction device
Including: dirt sucking tube 10, it is arranged in the former water cavity 101 of filter, the sewage discharge tube 11 of dirt sucking tube 10 and the drainage screen of filter
103 are arranged in correspondence with；Blowdown assembly, for discharging the dirt in former water cavity 101, dirt sucking tube 10 is connected with blowdown assembly；
Controller, according to the start and stop of the combination control of sewage disposal pump of any one control condition following or control condition, control condition includes:
Time, filter water inlet 104 at force value, filter outlet 105 at force value, the water inlet of filter
Pressure differential between 104 and outlet 105, the flow of water inlet 104 of filter, the flow of outlet 105 of filter.
The sewage suction device of the present invention can realize the automatic cleaning to drainage screen by controller, and controller detection reaches entry condition
Time, the most every Preset Time is cleared up, or is detected that outlet 105 pressure of filter or flow are too small, or inspection
Measure water inlet 104 pressure of filter or flow too small or detect the water inlet 104 of filter and outlet 105 it
Between pressure differential excessive, i.e. start backwash, absorb the dirt on drainage screen 103 by dirt sucking tube 10, play clean filtering net
The purpose of 103, thus eliminate the work that artificial unloading's filter carries out removing contamination, saved manpower, also improves simultaneously and removes contamination
The efficiency that efficiency and filter run.
Above-mentioned entry condition can also be mutually combined use, such as time conditions and pressure differential and be used in conjunction with, multiple entry condition
Combination can bring different effects.
Preferably, blowdown assembly includes dredge pump and blow-off line 21, and the arrival end of blow-off line 21 is connected with dirt sucking tube 10,
Dredge pump is connected with blow-off line 21 and is used for extracting the dirt sucked by dirt sucking tube 10 out.
Such as Fig. 1, shown in 5 and 6, blow-off line 21 connects former water cavity 101 by dirt sucking tube 10, is inhaled into the dirt of dirt sucking tube 10
Thing can be discharged to outside filter by blow-off line 21.When dredge pump runs, shape in blow-off line 21 and dirt sucking tube 10
Becoming negative pressure, therefore the dirt on drainage screen 103 is drawn into dirt sucking tube 10, and by outside blow-off line 21 discharge filter.
In certain embodiments, blowdown assembly does not includes the dredge pump being separately provided, because filter can form enough pressure
Dirt is discharged from blow-off line 21；And in other preferred embodiments, blowdown assembly is accomplished by arranging dredge pump, with
Negative pressure is formed, with by dirt sucking-off in dirt sucking tube 10 and former water cavity 101.
Wherein embodiment as shown in Figure 3, the embodiment of this sewage suction device only includes dirt sucking tube 10.
Preferably, in Fig. 1, the embodiment shown in 2 and 4, sewage suction device also includes flushing line, and flushing line includes:
Jet pipe 31, jet pipe 31 is arranged on the water-purifying cavity 102 of filter, and the jet orifice 32 of jet pipe 31 is towards the filtration of filter
The surface configuration of net 103.
Jet pipe 31 is rinsed so that sewage suction device is rinsed and absorbs two to the dirt on drainage screen 103 simultaneously by increasing
Operation, dirt is rinsed the current of jet pipe 31 ejection and shoots down from drainage screen 103, then absorbed by dirt sucking tube 10, improves
The effect of cleaning.
Preferably, as it is shown in figure 1, flushing line also includes that flushing pump 33, jet pipe 31 are connected with the port of export of flushing pump 33.
Preferably, if sewage suction device i.e. has flushing pump 33, have again dredge pump, then flushing pump 33 runs simultaneously with dredge pump.
I.e. in flushing process, flushing pump 33 runs simultaneously equal startup optimization with dredge pump.
Preferably, the one or many during the shape of jet orifice 32 can be strip hole, diamond hole, tri-angle-holed, square hole, circular hole
The combination planted.
Preferably, jet pipe 31 is parallel to shell body inner surface and drainage screen 103 outer surface of filter simultaneously, with one or
Multiple jet orifices 32, jet orifice 32 center is perpendicular to cartridge surface.
Preferably, jet orifice 32 is arranged accordingly with sewage discharge tube 11.I.e. each jet orifice 32 and one is positioned at drainage screen 103
The sewage discharge tube 11 of offside is opposite disposed.
General filter needs the back pressure not less than 1.5bar to assist to carry out backwash, if the too low backwash effect of back pressure can drop
Low, it will to cause the filter net jam of filter, need manually to be carried out, generally require at pipeline to meet the pressure of flushing
In install booster pump additional the pressure in pipeline be provided, the most not only cost improves but also energy consumption increases.
And the sewage suction device of the present invention is capable of under back pressure normally working.When being applied in water body on organic filtration device, this
By on the inwall of drainage screen 103 in the case of the pressure of the sewage suction device water inlet 104 that can be implemented in filter of invention is the lowest
The aquatic organisms such as the algae being mingled with are rinsed, and normally can work under relatively low back pressure, wherein when influent pressure force value 0.3 to
Low back pressure is belonged to time in the range of 1.5Bar.This is because the water purification of jet orifice 32 ejection outside drainage screen 103 is to drainage screen 103
Outside is rinsed, and the dirt inside drainage screen 103 is absorbed by the sewage discharge tube 11 within drainage screen 103, and this kind of flushing is joined
It is more thorough that the drainage screen 103 of blocking can be rinsed by the cleaning mode closed.The backwash design structure that this suction coordinates carries
High backwash efficiency and backwash interval time, reduce backwash water consumption.
Preferably, the water inlet of flushing line is connected with the water-purifying cavity 102 of filter.So can utilize filter water-purifying cavity 102
Interior water purification is rinsed, and decreases the consumption of water.
Flushing pump 33 is arranged on the outside of filter, and the water inlet of flushing pump 33 is connected to the flushing intake 34 of sewage suction device,
The water taken from flushing intake 34 is the water purification after being filtered, the developing room 36 of outlet connection suction pipeline, developing room
36 connect with jet pipe 31.
Preferably, as it is shown in figure 1, flushing line also includes that impurity prefilter 35, impurity prefilter 35 are arranged in flushing line.
Impurity prefilter 35 can remove filter because of dismounting, maintenance process is not intended to the impurity brought into, cause to prevent from blocking jet orifice
Secondary is overhauled.
In order to improve the effect of impurity prefilter 35, it is furthermore preferred that the filtering accuracy of impurity prefilter 35 is less than or equal to jet
The diameter of mouth 32.
Preferably, the diameter of jet orifice 32 in the range of jet pipe 31 diameter 1/1000 to 1/10, with improve current injection
Speed, reach rinse flow intensity.
Wherein, jet orifice 32 is the best apart from the nearlyest effect of drainage screen 103, therefore can arrange single jet nozzle, be connected to
On jet pipe 31, the speed of water jet can not only be improved, additionally it is possible to make jet orifice 32 close proximity to drainage screen 103.
Preferably, drainage screen is cylindrical, and the sewage discharge tube 11 of dirt sucking tube 10 is less than or equal to filter apart from the distance of drainage screen 103
The 1/2 of the internal diameter of net 103.The inwall of sewage discharge tube 11 and drainage screen 103 is fitted or keeps suitable distance.
Dirt sucking tube 10 can arrange multiple, and jet pipe 31 can also be arranged to multiple accordingly.In a preferred embodiment, soil pick-up
Pipe 10 and jet pipe 31 are arranged correspondingly.
In embodiment as shown in Figure 1, the dirt sucking tube 10 extended towards rightabout is opposite disposed.And Fig. 2 and Fig. 3 illustrates
Embodiment in, towards rightabout extend dirt sucking tube 10 shift to install.
Show a kind of only in the embodiment of the monolateral sewage suction device arranging dirt sucking tube 10 at Fig. 4, this is because in this embodiment,
Dirt sucking tube 10 and jet pipe 31 can rotate around the axis of drainage screen 103, i.e. dirt sucking tube 10 and jet pipe 31 can clean
Whole drainage screen 103.
Preferably, as it can be seen in figures 5 and 6, sewage suction device also includes: drive motor 41；Power transmission shaft, dirt sucking tube 10 and power transmission shaft
Connect and driven motion by power transmission shaft；Drive mechanism, power transmission shaft by drive mechanism with driving motor 41 be connected, drive mechanism to
Power transmission shaft output rotary motion and the displacement movement of the axial direction along power transmission shaft.
By driving motor 41 as aggressive device, by the transmission of actuating device, it is possible to achieve dirt sucking tube 10 can move,
To cover the different parts of drainage screen 103, improve cleaning efficiency.
Preferably, power transmission shaft can be integrated axle, it is also possible to is two sections or multistage axle.Two embodiments as shown in Fig. 5 and 6,
Wherein power transmission shaft is multistage axle, specifically includes a section of interconnective formation transmission water-purifying cavity 42 and forms transmission blowdown chamber 43
One section.
Preferably, sewage suction device also includes that jet pipe 31, jet pipe 31 are arranged on the water-purifying cavity 102 of filter, jet pipe 31
Jet orifice 32 towards the surface configuration of the drainage screen 103 of filter；Jet pipe 31 is connected with power transmission shaft and is driven by power transmission shaft
Motion.
Preferably, drive mechanism includes drive screw 45, and the rotation driving motor 41 is converted into along power transmission shaft by drive screw 45
The displacement movement of axial direction.
In one embodiment, drive mechanism also includes that travel switch 46, travel switch 46 electrically connect with driving motor 41, use
In controlling to drive the rotating of motor 41.Drive motor 41 to realize rotating by travel switch 46, i.e. achieve dirt sucking tube 10
The regular motion of drainage screen 103 relatively.
As shown in Figure 6, travel switch 46 is arranged in drive mechanism, and travel switch 46 can be by the axial displacement of power transmission shaft
Drive.More specifically, travel switch 46 is arranged in screw rod chamber 44, i.e. travel switch 46 and drive screw 45 is arranged on same
In one cavity.
Preferably, in power transmission shaft, include transmission water-purifying cavity 42 and transmission blowdown chamber 43, by rigidity or flexibly connect, transmission blowdown
Chamber 43 connects with the blow-off line 21 of filter, and transmission water-purifying cavity 42 connects with developing room 36, and is connected with drive screw 45.
And in further embodiments, drive motor 41 to realize rotating by controller, in these embodiments, it is not necessary to set
Put travel switch 46.
The suction device of the present invention can be installed to drainage or filter on oil filtration device, it is particularly possible to for a kind of low back pressure mistake
Filter.Existing filter is all to rely on filter intake pressure to carry out backwash work in running, but when filter exists
The most likely growing algae or shellfish after stopping using in special environment and waters more than one week on drainage screen, this is also mesh
Before an insoluble difficult problem, this device can be implemented in after filter quits work, control unit automatically controls startup anti-
Pre-washing function carries out cleaning down to drainage screen, it would be possible to the biology being attached on drainage screen rinses, and prevents from being attached to filter
Online biological self reproducing.
According to another aspect of the present invention, additionally provide a kind of filter, as it can be seen in figures 5 and 6, filter include housing and
Drainage screen 103, the cavity in housing is divided into water-purifying cavity 102 and former water cavity 101 by drainage screen 103, and filter also includes above-mentioned
Sewage suction device.
Specifically, filter includes the cylinder 106 of a filtration, the reinforcing ring 115 of welding one annular, reinforcing ring 115 in cylinder 106
While ensureing the intensity of cylinder 106, positioning element kit with fixing, element kit and reinforcing ring 115 are by cylinder
The inner chamber of 106 is divided into former water cavity 101 and water-purifying cavity 102, element kit and pass through drainage screen between the power transmission shaft of body centre
Assembly sleeve block 474 connects, and is additionally provided with drainage screen guide ring 114, cylinder 106 is opened between element kit and reinforcing ring 115
Being provided with water inlet 104, outlet 105, access hole 111, (air bleeding valve 118 is connected for flushing intake 34 and steam vent；
First end covers 107 and the second end covers 108 are connected with cylinder 106 and flushing pollution discharge axle sleeve 473, wherein by flange
It is connected by connecting bolt 109 between first end covers 107 and cylinder 106, the first end covers 107 has access hole
111, it is simple to the installation of filter and maintenance, by Flange joint blow-off line 21 inside the second end covers 108, outside connects
Dredge pump；One end of flushing pollution discharge axle sleeve 473 is connected with blow-off line 21 by driving sleeve 472, and the other end passes through the first envelope
External flange on head end cover 107 supports and is connected with drive screw 45；Outside jet orifice 32 is threadedly attached in jet pipe
On 31, jet pipe 31 is connected with transmission water-purifying cavity 42 by a pair U-shaped card 113；Flushing pump 33 connects flushing intake 34
With flushing water filling port 112, developing room 36 connects with transmission water-purifying cavity 42, and water purification is by rinsing intake 34 and transmission water-purifying cavity
42 enter jet pipe 31；The travel switch 46 being arranged on screw rod chamber 44 is by realizing flushing pollution discharge to panel transmission signal
The rotating of axle sleeve 473, and control its stroke size；Blowdown assembly is by flushing pollution discharge axle sleeve 473 with transmission blowdown chamber 43 even
Logical, the dredge pump of blowdown assembly connects with blow-off line 21.The water body filtered is needed to enter cylinder 106 by water inlet 104,
Filter through drainage screen 103, outlet 105 discharge.It is arranged on the pressure difference transmitter 117 on water inlet 104 and outlet 105
Monitoring water inlet 104 and the pressure of outlet 105 in real time, when filtering the water body of relative clean, drainage screen 103 can be long-time
Work, realizes timing suction by the program setting in control portion, and the suction time is set as 1 to 60min/ time；When filtering filthy water,
Increasing along with drainage screen 103 blocks impurity, reduce through drainage screen 103 discharge, outlet 105 pressure is gradually lowered, and works as pressure
Difference transmitter 117 senses when at water inlet 104 and outlet 105, pressure reduction reaches preset value, and controller starts driving motor 41,
Suction is started working, and water purification is squeezed in the ejection assemblies connected with transmission water-purifying cavity 42 by rinsing water filling port 112 by flushing pump 33,
Water purification is ejected into drainage screen 103 outer surface from outside jet orifice 32, the aggregation on drainage screen 103 surface together with sewage through with
The inside sewage discharge tube 11 that outside jet orifice 32 is relative enters transmission blowdown chamber 43, is finally discharged by blow-off line 21, completes once
Suction.Suction and filter process are carried out simultaneously, do not interfere with each other, and when suction is carried out, filter is carrying out filtering work always.
In the embodiment show in figure 5, the detailed structure of filter includes the cylinder 106 that an accumbency is installed, welding in cylinder 106
Cylinder chamber is divided into former water cavity 101 with clean by one annular reinforcing ring 115, element kit (drainage screen 103) and annular reinforcing ring 115
Water cavity 102, cylinder 106 offers water inlet 104, outlet 105, access hole 111, rinses intake 34 and steam vent
(air bleeding valve 118 is connected)；First end covers 107 and the second end covers 108 are by flange and cylinder 106 and flushing
Blowdown axle sleeve 473 connects, and the first end covers 107 has access hole 111, it is simple to the installation of filter and maintenance, the second envelope
By Flange joint blow-off line 21 inside head end cover 108, outside connects dredge pump；One end of flushing pollution discharge axle sleeve 473 is passed through
Driving sleeve 472 connects with blow-off line 21, and the other end is supported and transmission spiral shell by the external flange on the first end covers 107
Bar 45 connects；Outside jet orifice 32 is threadedly attached on flushing jet pipe 31, rinses jet pipe 31 U-shaped by a pair
Card 113 connects with transmission water-purifying cavity 42；Flush water pump connects and rinses intake 34 and rinse water filling port 112, developing room 36 with
Transmission water-purifying cavity 42 connects, and is provided with power transmission shaft between developing room 36 with transmission water-purifying cavity 42 and is connected seat 48, and water purification is by punching
Wash intake 34 and transmission water-purifying cavity 42 enters and rinses jet pipe 31；The travel switch 46 being arranged on screw rod chamber 44 by
Control portion transmission signal realizes the rotating of flushing pollution discharge axle sleeve 473, and controls its stroke size；Soil pick-up assembly and the row of flushing
The transmission blowdown chamber 43 of dirty axle sleeve 473 connects, and dredge pump connects with blow-off line 21；Flushing pollution discharge axle sleeve 473 is clean with transmission
Water cavity 42 and transmission blowdown chamber 43 connect seat by power transmission shaft and connect, and transmission blowdown chamber 43 is by driving sleeve 472 and blow-off pipe
Road 21 connects, and transmission water-purifying cavity 42 supports by the external flange on end covers, by power transmission shaft base 471 and drive screw
45 connect；Jet orifice 32 outside drainage screen 103 is the most relative with internal sewage discharge tube 11, is distributed on flushing pollution discharge axle sleeve 473
Conplane both sides, drainage screen end socket 119 is provided with drainage screen handle 120；Whole filter is without mounting assembly, by envelope
Head external flange 110 and external connection also plays a supportive role.
In the embodiment show in figure 6, the detailed structure of filter includes the cylinder 106 that an accumbency is installed, welding in cylinder 106
Cylinder chamber is divided into former water cavity 101 with clean by one annular reinforcing ring 115, element kit (drainage screen 103) and annular reinforcing ring 115
Water cavity 102, cylinder 106 offers water inlet 104, outlet 105, access hole 111, rinses intake 34 and steam vent
(air bleeding valve 118 is connected)；First end covers 107 and the second end covers 108 are by flange and cylinder 106 and flushing
Blowdown axle sleeve 473 connects, and the first end covers 107 has access hole 111, it is simple to the installation of filter and maintenance, the second envelope
By Flange joint blow-off line 21 inside head end cover 108, outside connects dredge pump；One end of flushing pollution discharge axle sleeve 473 is passed through
Driving sleeve 472 connects with blow-off line 21, and the other end is supported and transmission spiral shell by the external flange on the first end covers 107
Bar 45 connects；Outside jet orifice 32 is threadedly attached on flushing jet pipe 31, rinses jet pipe 31 U-shaped by a pair
Card 113 connects with transmission water-purifying cavity 42；Flush water pump connects flushing intake 34 and rinses water filling port 112, and water purification is by rinsing
Intake 34, developing room 36 and transmission water-purifying cavity 42 enter and rinse jet pipe 31；It is arranged on the travel switch on screw rod chamber 44
46 by realizing the rotating of flushing pollution discharge axle sleeve 473 to control portion transmission signal, and controls its stroke size；Soil pick-up assembly
Connecting with the transmission blowdown chamber 43 of flushing pollution discharge axle sleeve 473, dredge pump connects with blow-off line 21；Flushing pollution discharge axle sleeve 473
Being connected seat with transmission water-purifying cavity 42 and transmission blowdown chamber 43 by power transmission shaft to connect, transmission blowdown chamber 43 is by driving sleeve 472
Connecting with blow-off line 21, transmission water-purifying cavity 42 supports by the external flange on end covers, by power transmission shaft base 471 with
Drive screw 45 connects；Jet orifice 32 outside drainage screen 103 is the most relative with internal sewage discharge tube 11, is distributed on flushing row
The dirty conplane both sides of axle sleeve 473, drainage screen end socket 119 is provided with drainage screen handle 120；Whole filter is without bearing group
Part, by end socket external flange 110 and external connection and play a supportive role.
Preferably, the filtering accuracy of drainage screen 103 is 10 to 200 μm.
Embodiment as shown in Figure 5, developing room 36 is in hull outside；And in the embodiment shown in Fig. 6, developing room 36
Enclosure interior.
The filter of the present invention is provided with sewage suction device, and therefore filter effect can keep good.A kind of to the Organic substance in water body
The filter effect of filter carrying out filtering is as follows:
Microcystis aeruginosa, 3*10 before filtering5/ L, 172/L after filtration；
Closterium, 1*10 before filtering4/ L, 22/L after filtration；
Scenedesmus, 6*10 before filtering4/ L, 18/L after filtration；
Desmids, 8*10 before filtering3/ L, 6/L after filtration；
Algae fibre, 7*10 before filtering3/ L, 78/L after filtration；
Discoctaster algae, 5*10 before filtering4/ L, 56/L after filtration.
The developing result of the sewage suction device of the present invention, all surveys wherein illustrated in embodiment are described below by way of three embodiments
Amount data are all to utilize flow for 300m3, have what the filter model machine of identical filter area was carried out.Test waters suspended particulate substance
Concentration is 2000mg/L, and the testing time is 24 hours.Low back pressure is belonged to when in the range of back pressure value is at 0.1 to 2.0Bar.
First embodiment: manufacture such as this paper 300m3The low back pressure of one of flow automatically suctions filter, and it is inside and outside drainage screen
Layer is uniformly placed with outside jet orifice and internal sewage discharge tube.Test data compilation draws after collecting, filter backpressure set forth herein
Fluctuation range is 0.4 to 1.5Bar, and backwash water consumption is 20 to 25m at about 15min interval time in backwash3/ h, always
Process discharge is 276 to 298m3/h。
Second embodiment: manufacture such as this paper 300m3The low back pressure of one of flow automatically suctions filter, and it is inside and outside drainage screen
Layer is uniformly placed with outside jet orifice and internal sewage discharge tube, and developing room 36 and blowdown room are arranged in the interior of whole filter cavity simultaneously
Portion.Examination data compilation draws after collecting, and filter backpressure fluctuation range set forth herein is 0.4 to 1.5Bar, during backwash interval
Between be about about 15min, backwash water consumption is 20 to 25m3/ h, total discharge that processes is 276 to 298m3/h。
3rd embodiment: manufacture the 300m with sewage suction device as shown in Figure 33A kind of filter of the full-automatic suction of flow,
It is uniformly placed with internal sewage discharge tube at drainage screen internal layer.Test data compilation draws after collecting, the back-pressure surges of this filter
Scope is 0.4 to 1.5MPa, and backwash interval time is 1min, and backwash water consumption is 20 to 75m3/ h, always processes current
Amount is 228 to 298m3/h。
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of being made, etc.
With replacement, improvement etc., should be included within the scope of the present invention.
Claims (15)
1. the sewage suction device of a filter, it is characterised in that including:
Dirt sucking tube (10), is arranged in the former water cavity (101) of described filter, the sewage discharge tube of described dirt sucking tube (10)
(11) drainage screen (103) with described filter is arranged in correspondence with；
Blowdown assembly, is used for discharging the dirt in described former water cavity (101), described dirt sucking tube (10) and described blowdown group
Part is connected；
Controller, according to the start and stop of the combination control of sewage disposal pump of any one control condition following or control condition, described control
Condition processed includes: time, the force value at water inlet (104) place of described filter, the outlet (105) of described filter
The force value at place, the pressure differential between the water inlet (104) of described filter and outlet (105), described filter
The flow of water inlet (104), the flow of outlet (105) of described filter.
Sewage suction device the most according to claim 1, it is characterised in that described blowdown assembly includes dredge pump and blow-off line (21),
The arrival end of described blow-off line (21) is connected with described dirt sucking tube (10), described dredge pump and described blow-off line (21)
Connect and be used for extracting the dirt sucked by described dirt sucking tube (10) out.
Sewage suction device the most according to claim 1, it is characterised in that described sewage suction device also includes flushing line, described punching
Wash pipeline to include:
Jet pipe (31), described jet pipe (31) is arranged on the water-purifying cavity (102) of described filter, described jet pipe (31)
Jet orifice (32) towards the surface configuration of the drainage screen (103) of described filter.
Sewage suction device the most according to claim 3, it is characterised in that described flushing line also includes flushing pump (33), described
Jet pipe (31) is connected with the port of export of described flushing pump (33).
Sewage suction device the most according to claim 3, it is characterised in that described jet orifice (32) and described sewage discharge tube (11) phase
It is arranged in correspondence with.
Sewage suction device the most according to claim 3, it is characterised in that the water inlet of described flushing line and described filter
Water-purifying cavity (102) connects.
Sewage suction device the most according to claim 3, it is characterised in that described flushing line also includes impurity prefilter (35),
Described impurity prefilter (35) is arranged in described flushing line.
Sewage suction device the most according to claim 7, it is characterised in that the filtering accuracy of described impurity prefilter (35) is less than
Or the diameter equal to described jet orifice (32).
Sewage suction device the most according to claim 3, it is characterised in that the diameter of described jet orifice (32) is in the range of described
The 1/1000 to 1/10 of the diameter of jet pipe (31).
Sewage suction device the most according to claim 1, it is characterised in that described drainage screen (103) is cylindrical, described soil pick-up
The sewage discharge tube (11) of pipe (10) is less than or equal to described drainage screen (103) apart from the distance of described drainage screen (103)
The 1/2 of internal diameter.
11. sewage suction devices according to claim 1, it is characterised in that described sewage suction device also includes:
Drive motor (41)；
Power transmission shaft, described dirt sucking tube (10) is connected with described power transmission shaft and is driven motion by described power transmission shaft；
Drive mechanism, described power transmission shaft is connected with described driving motor (41) by described drive mechanism, described driver
Structure is to the output rotary motion of described power transmission shaft and the displacement movement of the axial direction along described power transmission shaft.
12. sewage suction devices according to claim 11, it is characterised in that described sewage suction device also includes jet pipe (31), described
Jet pipe (31) is arranged on the water-purifying cavity (102) of described filter, jet orifice (32) court of described jet pipe (31)
Surface configuration to the drainage screen (103) of described filter；Described jet pipe (31) is connected with described power transmission shaft and by institute
State power transmission shaft and drive motion.
13. sewage suction devices according to claim 11, it is characterised in that described drive mechanism includes drive screw (45), described
The rotation of described driving motor (41) is converted into the displacement fortune of the axial direction along described power transmission shaft by drive screw (45)
Dynamic.
14. sewage suction devices according to claim 11, it is characterised in that described drive mechanism also includes travel switch (46), institute
State travel switch (46) to electrically connect with described driving motor (41), be used for controlling the positive and negative of described driving motor (41)
Turn.
15. 1 kinds of filters, including housing and drainage screen (103), the cavity in described housing is divided into by described drainage screen (103)
Water-purifying cavity (102) and former water cavity (101), it is characterised in that described filter also includes appointing in claim 1 to 14
One described sewage suction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610519001.6A CN105999809A (en) | 2016-07-04 | 2016-07-04 | Filter and sewage absorption device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610519001.6A CN105999809A (en) | 2016-07-04 | 2016-07-04 | Filter and sewage absorption device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105999809A true CN105999809A (en) | 2016-10-12 |
Family
ID=57107914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610519001.6A Pending CN105999809A (en) | 2016-07-04 | 2016-07-04 | Filter and sewage absorption device thereof |
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| Country | Link |
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| CN110028175A (en) * | 2018-01-12 | 2019-07-19 | 中国石油天然气股份有限公司 | Oil and gas well fracturing flowback fluid treatment method, device and skid-mounted box |
| CN113332774A (en) * | 2021-04-26 | 2021-09-03 | 杭州泉尚环境科技有限公司 | Intelligent monitoring system for wastewater treatment |
| CN113559589A (en) * | 2021-08-03 | 2021-10-29 | 上海同臣环保有限公司 | Method for optimizing filter cloth use of filter tank by adding water inlet valve positioner |
| CN116272034A (en) * | 2022-12-01 | 2023-06-23 | 中国船舶重工集团公司第七二五研究所 | A self-cleaning filter and its control method |
| CN117125749A (en) * | 2022-05-19 | 2023-11-28 | 广州联动万物科技有限公司 | An intelligent treatment method and device for algae growth in waterways |
| CN121466653A (en) * | 2026-01-07 | 2026-02-06 | 太原理工大学 | A wastewater treatment device for ecological environment management |
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| CN205965214U (en) * | 2016-07-04 | 2017-02-22 | 上海贝威科技有限公司 | Filter and dirt absorbing device thereof |
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| JP2003190713A (en) * | 2001-12-27 | 2003-07-08 | Ishigaki Co Ltd | Dust removal device for impurity separation and dust separation system for impurity separation |
| CN103908821A (en) * | 2013-11-13 | 2014-07-09 | 江苏海豚船舶机械有限公司 | Horizontal type high pressure full-automatic backwashing filter |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110028175A (en) * | 2018-01-12 | 2019-07-19 | 中国石油天然气股份有限公司 | Oil and gas well fracturing flowback fluid treatment method, device and skid-mounted box |
| CN113332774A (en) * | 2021-04-26 | 2021-09-03 | 杭州泉尚环境科技有限公司 | Intelligent monitoring system for wastewater treatment |
| CN113332774B (en) * | 2021-04-26 | 2022-05-31 | 杭州泉尚环境科技有限公司 | Intelligent monitoring system for wastewater treatment |
| CN113559589A (en) * | 2021-08-03 | 2021-10-29 | 上海同臣环保有限公司 | Method for optimizing filter cloth use of filter tank by adding water inlet valve positioner |
| CN117125749A (en) * | 2022-05-19 | 2023-11-28 | 广州联动万物科技有限公司 | An intelligent treatment method and device for algae growth in waterways |
| CN117125749B (en) * | 2022-05-19 | 2025-10-03 | 广州联动万物科技有限公司 | An intelligent treatment method and device for algae growth in waterways |
| CN116272034A (en) * | 2022-12-01 | 2023-06-23 | 中国船舶重工集团公司第七二五研究所 | A self-cleaning filter and its control method |
| CN116272034B (en) * | 2022-12-01 | 2025-09-05 | 中国船舶重工集团公司第七二五研究所 | Self-cleaning filter and control method |
| CN121466653A (en) * | 2026-01-07 | 2026-02-06 | 太原理工大学 | A wastewater treatment device for ecological environment management |
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