CN202762158U - Self-cleaning filter - Google Patents
Self-cleaning filter Download PDFInfo
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- CN202762158U CN202762158U CN 201220260472 CN201220260472U CN202762158U CN 202762158 U CN202762158 U CN 202762158U CN 201220260472 CN201220260472 CN 201220260472 CN 201220260472 U CN201220260472 U CN 201220260472U CN 202762158 U CN202762158 U CN 202762158U
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Abstract
The utility model discloses a self-cleaning filter, relating to a filter, which is cleaned more completely and is more energy-saving in use. The self-cleaning filter comprises an outer shell, a coarse filter screen, a barrel-shaped fine filter screen, a rotatable hollow dirt collecting pipe, a backwashing component, an axial driving device, a control valve, pressure sensors and a controller, wherein a filtering chamber and a dirt draining chamber are formed inside the outer shell; the dirt draining chamber is equipped with a dirt draining valve; an outwardly protruding suction nozzle is formed on the surface of one end of the hollow dirt collecting pipe; the other end of the hollow dirt collecting pipe penetrates through a sealing partition board, extends to the dirt draining chamber and is communicated with the backwashing component; the backwashing component is vertically fixed to the hollow dirt collecting pipe; spray holes pointing at opposite directions are formed at the two ends of the backwashing component respectively; the axial driving device drives the hollow dirt collecting pipe to do a reciprocating scanning movement in the axial direction of the hollow dirt collecting pipe; the pressure sensors are arranged at a water inlet and a water outlet respectively; an input end of the controller is connected with the sensors; the output end of the controller are connected with the control valve and the dirt draining valve respectively. When pressure difference reaches a preset value, the controller triggers the dirt draining valve and the control valve to open, and the hollow dirt collecting pipe rotates and does the reciprocating motion at the same time, so that impurities inside the fine filter screen are cleaned.
Description
Technical field
The utility model relates to filter, relates in particular to a kind of self-cleaning filter.
Background technology
Filter is that water treatment field is used more widely equipment, after use a period of time, just need to the filter screen of filter be cleaned.Along with the progress of technology, but the filter of self-cleaning has appearred.A kind of operation principle of existing self-cleaning filter is as follows:
During work, pending water enters the filter body by water inlet, and the Impurity deposition in the water produces pressure reduction thus on stainless steel filtering net.Monitoring intake-outlet pressure reduction changes, and when pressure reduction reached setting value, controller caused motor starting and drives the brush rotation to control valve and drive motors signal, and filter screen is cleaned; Control valve is opened and is carried out blowdown simultaneously, and whole cleaning process continues tens of seconds, when cleaning end, and closed control valve, motor stops operating, and system returns to its original state, until pressure reduction reaches setting value again, beginning is cleaned again.
In said process, the inventor finds prior art, and there are the following problems at least:
The impurity particle that filters out is stuck in screen surface, can't brush away by brush, and light attachment also is difficult to brush off by brush, causes cleaning not thorough; In addition, brush and filter screen inwall Long Term Contact affect the utilization of filter area, and brush are easy to wear, change pretty troublesome again.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of self-cleaning filter, clean more thorough, more energy-conservation during use.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
A kind of self-cleaning filter comprises:
Shell forms filter chamber and blowdown chamber, and described filter chamber and described blowdown chamber share a seal diaphragm, wherein, described filter chamber is divided into the first filtering area and the second filtering area, is provided with water inlet on the shell of described the first filtering area, is provided with delivery port on the shell of described the second filtering area;
Coarse strainer, the shell that is arranged on described the first filtering area is inboard, and liquid to be filtered enters from described water inlet, flows into described the second filtering area after described coarse strainer filters;
Tubular fie screen, the shell that is arranged in described the second filtering area is inboard;
The recoil part of the dirty pipe of rotatable middle empty set and hollow, the closed at both ends of the dirty pipe of described middle empty set, one end is arranged in the second filtering area of described filter chamber, its surface is provided with the evagination suction nozzle, the other end passes described seal diaphragm, and to extend to described blowdown indoor, and the described recoil part indoor with described blowdown is connected, and described recoil part is fixing perpendicular to the dirty pipe of described middle empty set, the two ends of described recoil part are respectively arranged with spray orifice, and the described spray orifice at described recoil part two ends is directed in opposite directions respectively;
Axial drive means, connector and control valve, described axial drive means is connected with the dirty pipe of described middle empty set by described connector, drives the dirty Guan Zaiqi of described middle empty set and axially does the shuttle-scanning motion, and described control valve is connected with described axial drive means;
Blowoff valve is arranged on the described blowdown chamber;
The first pressure sensor and the second pressure sensor are separately positioned on described water inlet and the described water outlet of described filter chamber;
Controller, its input are connected with described the second pressure sensor with described the first pressure sensor respectively, and its output is connected with described blowoff valve with described control valve respectively.
Described evagination suction nozzle reclines mutually with described fie screen.
Described axial drive means is hydraulic cylinder.
Described hydraulic cylinder is the waterpower cylinder, is connected with described blowdown chamber.
Described control valve is the two-bit triplet magnetic valve, is arranged on the feed liquor path of described hydraulic cylinder.
Described axial drive means is linear motor.
Described control valve is electric-controlled switch, is connected with described linear motor.
Described coarse strainer is filter septum, is arranged on the line of demarcation of described the first filtering area and described the second filtering area, perhaps,
Described self-cleaning filter also comprises: pertusate dividing plate is set, is arranged on the line of demarcation of described the first filtering area and described the second filtering area.
Further, described filter also comprises:
Support bar is fixed on described filter septum or the described dividing plate, connects with the dirty pipe of the described empty set that is arranged in described the second filtering area.
Described evagination suction nozzle cross-distribution on the dirty pipe of described middle empty set.
The described self-cleaning filter of the present embodiment, in the filter process, inboard impurity at fie screen is piled up gradually, make the inside and outside both sides of fie screen have a pressure differential, when this pressure differential reaches the first preset value, filter will begin cleaning process automatically: blowoff valve is opened, water is discharged from the blowdown chamber, pressure in the dirty pipe of blowdown chamber and middle empty set declines to a great extent, because differential pressure action, the evagination suction nozzle is drawn impurity and the dirt of fie screen inwall, the dirty pipe of empty set flows into the blowdown chamber in the warp, spray orifice ejection at recoil part two ends, because the design of spray orifice is directed in opposite directions, so repercussion effect can drive in the dirty pipe of empty set and the rotation of recoil part; Control valve is opened simultaneously, axial drive means drives the dirty pipe of empty set and evagination suction nozzle and do scanning motion in axially forward (or backward) in rotation, when pressure differential drops to the second preset value or after cleaning process reaches Preset Time, controller sends control signal closes blowoff valve and control valve, and cleaning process finishes.Can find out from the above-mentioned course of work, the described self-cleaning filter of the present embodiment, owing to having adopted the dirty pipe of rotatable middle empty set and evagination suction nozzle, reciprocating rotary scanning is cleaned more thoroughly, can be stuck in the impurity particle removing of screen surface; In addition, because the dirty pipe rotation of empty set during the recoil of water drives when having utilized blowdown is more energy-conservation during use.
Description of drawings
Fig. 1 is the structural representation of self-cleaning filter among the utility model embodiment;
Fig. 2 is the coarse filtration net of self-cleaning filter among the utility model embodiment and the structural representation of thin screen pack;
Fig. 3 is the line schematic diagram of the control assembly of self-cleaning filter among the utility model embodiment.
Description of reference numerals
1-coarse strainer, 2-fie screen, the dirty pipe of empty set among the 3-, the 4-part that recoils, the 41-spray orifice,
5-evagination suction nozzle, the 6-axial drive means, the 7-connector, the 8-control valve,
The 9-blowoff valve, the 10-controller, the 11-filter chamber, 111-the first filtering area,
112-the second filtering area, 12-blowdown chamber, the 13-seal diaphragm, the 14-water inlet,
The 15-delivery port, 16-support bar, 17-the first pressure sensor, 18-the second pressure sensor.
The specific embodiment
The utility model embodiment provides a kind of self-cleaning filter, clean more thorough, more energy-conservation during use.
Below in conjunction with accompanying drawing the utility model embodiment is described in detail.The specific embodiment described herein is only in order to explaining the utility model, and is not used in restriction the utility model.
Embodiment
The utility model embodiment provides a kind of self-cleaning filter, and as shown in Figure 1, this filter comprises:
Shell, form filter chamber 11 and blowdown chamber 12, filter chamber 11 and blowdown chamber 12 share a seal diaphragm 13, wherein, filter chamber 11 is divided into the first filtering area 111 and the second filtering area 112, be provided with water inlet 14 on the shell of described the first filtering area 111, be provided with delivery port 15 on the shell of described the second filtering area 112;
The dirty pipe 3 of rotatable middle empty set and recoil part 4, the closed at both ends of the dirty pipe 3 of middle empty set, one end is arranged in the second filtering area 112 of filter chamber 11, its surface is provided with evagination suction nozzle 5, the other end passes seal diaphragm 13 and extends in the blowdown chamber 12, is connected with the recoil part 4 that is positioned at blowdown chamber 12, and recoil part 4 is fixed perpendicular to the dirty pipe 3 of middle empty set, the two ends of recoil part 4 are respectively arranged with spray orifice 41, and the spray orifice 41 at recoil part 4 two ends is directed in opposite directions;
Axial drive means 6, connector 7 and control valve 8, axial drive means 6 is connected by the dirty pipe 3 of connector 7 and middle empty set, and the dirty pipe 3 of empty set is axially done the shuttle-scanning motion at it in the driving, and control valve 8 is connected with axial drive means 6;
The first pressure sensor and the second pressure sensor (not marking among the figure) are separately positioned on water inlet 14 and the delivery port 15 of filter chamber 11;
Wherein, alternatively, the dirty pipe 3 of middle empty set and recoil part 4, structure is formed in one.
When the filter in the present embodiment is worked, pending water enters filter chamber 11 by water inlet 14, filters larger particle through coarse strainer 1 and enters the second filtering area 112, again filters through fie screen 2 again, flow out from delivery port 15, the Impurity deposition in the water is on coarse strainer 1 and fie screen 2.Passing in time, the inner surface impurity of fie screen 2 is piled up gradually, formed a pressure differential in inside and outside both sides, can be by the water inlet 14 that is arranged on filter chamber 11, the first pressure sensor and second pressure sensor at delivery port 15 places, monitor described pressure differential, what that fie screen 2 inner surface impurity are piled up are the size of this pressure difference value reflected indirectly.Wherein, coarse strainer 1 eyelet is large, so coarse strainer 1 place is very little because the impurity accumulation produces pressure differential, can not consider.
In the present embodiment the concrete shape of coarse strainer 1 is not construed as limiting, but preferably, as shown in Figure 2, coarse strainer 1 is tubular, is arranged on the first filtering area 111 interior outer casing inner walls except the left and right sides, and liquid to be filtered enters from water inlet 14, side inflow outside the cylinder of the coarse strainer 1 of tubular, flow into afterwards the second filtering area 112, the whole tubular side of coarse strainer 1 is as filtering surface, and filter area is large.
Fie screen 2 in the present embodiment is tubular, shown in dotted line among Fig. 1 or Fig. 2, is arranged on the second filtering area 112 interior outer casing inner walls except the left and right sides, and namely seal diaphragm 13 places do not arrange fie screen 2.The spray orifice 41 at recoil part 4 two ends is directed in opposite directions, when sewage sprays respectively from spray orifice 41 round about at recoil part 4 two ends, the repercussion effect of water is so that dirty pipe 3 rotations of middle empty set, axial drive means 6 is ordered about the dirty pipe 3 of middle empty set and is done the shuttle-scanning motion simultaneously, the dirty pipe of empty set 3 advance while rotating (or retreating) among the result, can remove the impurity on whole tubular fie screen 2 inwalls, clean more thorough.
As shown in Figure 3, controller 10 in the present embodiment, its input links to each other with the second pressure sensor 18 with the first pressure sensor 17, receive the force value that the first pressure sensor 17 and the second pressure sensor 18 measure, calculate accordingly the pressure differential at water inlet 14 places and delivery port 15 places, when detecting this pressure differential and reach the first preset value, the internal layer impurity overheap of fie screen 2 is described, need to clean, controller 10 namely produces control signal.Control signal input control valve 8 and blowoff valve 9 that controller 10 produces, what input blowoff valve 9 and control valve 8 can be same control signal, the two states that has representative to open or close; Also can be two kinds of signals, input respectively blowoff valve 9 and control valve 8, the control signal of wherein inputting blowoff valve 9 has two states, correspondence opens or closes, and four kinds of corresponding states can be opened, be advanced, retreat, close to the control signal of input control valve 8 according to concrete reciprocating motion control implementation,, the switching of opening, moving forward and backward also can be arranged, close three kinds of corresponding states, can also open and close two kinds of corresponding states.Controller 10 in the present embodiment also is used for the first poor preset value of preset pressure, the Preset Time that the second preset value or cleaning process continue.Wherein, the first preset value is used for triggering control valve 8 and blowoff valve 9 is opened, the beginning cleaning process; The Preset Time that the second preset value or cleaning process continue is used for triggering control valve 8 and blowoff valve 9 cuts out, and finishes cleaning process.In the implementation, described controller 10 can be the logical device with programing function, for example single-chip microcomputer or signal processor, blowoff valve 9 is common electrically-controlled valve, and control valve 8 is used for control axial drive means 6, relevant with the specific implementation of axial drive means 6, the present embodiment is not done restriction.
The whole course of work of the described self-cleaning filter of the present embodiment, specific as follows shown in:
In filter process, As time goes on, impurity is piled up gradually, and when the pressure differential of the inside and outside both sides of screen pack reached the first preset value, controller 10 produced control signals, automatically begins cleaning process.Control signal triggers blowoff valve 9 and opens, water in the blowdown chamber 12 is discharged, pressure in the dirty pipe 3 of blowdown chamber 12 and middle empty set declines to a great extent, so that there is differential pressure action in the dirty pipe of middle empty set 3 inside and outside both sides, because of the existence of the siphonage at this differential pressure action and evagination suction nozzle place 5, the impurity of fie screen 2 medial surfaces enters the dirty pipe 3 of middle empty set with water, through in the dirty pipe 3 of empty set flow into blowdown chambers 12, spray orifice 41 ejections at recoil part 4 two ends, the dirty pipe 3 of empty set and 4 rotations of recoil part during the repercussion effect during ejection drives; Controller 10 also produces another control signal (also can use and trigger the control signal that blowoff valve 9 is opened) simultaneously, triggering control valve 8 opens, make axial drive means 6 produce power, the dirty pipe 3 of empty set is done scanning motion in axially forward (or backward) in the driving, when the dirty pipe 3 of middle empty set moves to the top, axial drive means 6 automatically backward (or forward) do scanning motion, perhaps controller 10 sends switch-over control signal and makes control valve 8 switchings (or control valve 8 automaticallyes switch), make axial drive means 6 backward (or forward) do scanning motion, the dirty pipe of empty set 3 is done reciprocal scanning motion, the medial surface of whole fie screen 2 capable of washing like this while rotating.When pressure reduction reduces in the second preset value or cleaning process when reaching the Preset Time of controller 10, controller 10 produces the closing control signal, triggering blowoff valve 9 and control valve 8 closes, cleaning process finishes, system returns to its original state, until pressure differential reaches setting value again, beginning is cleaned again.
The described self-cleaning filter of the present embodiment, but whether need to clean at the use procedure automatic decision, and when judgement needs to clean, cleaning process can be carried out automatically, in cleaning process, normal filtration work is uninterrupted, simultaneously cleaning is more thorough, can will be stuck in the impurity particle of screen surface, or the light attachment of screen surface is removed, utilize during use the recoil of water drive in the dirty pipe rotation of empty set, cleaning process is more energy-conservation.
Wherein, preferably, evagination suction nozzle 5 reclines mutually with fie screen 2, helps evagination suction nozzle 5 to draw the impurity dirt of fie screen 2 inner surfaces.
Wherein, preferably, as shown in Figure 1, described axial drive means 6 is hydraulic cylinder, and the dirty pipe 3 of empty set was axially done the shuttle-scanning motion at it during the piston apparatus in the hydraulic cylinder drove.Accordingly, the control valve 8 that is used for the control hydraulic cylinder is the two-bit triplet magnetic valve, is arranged on the feed liquor path of described hydraulic cylinder.Particularly, the two-bit triplet magnetic valve is opened different fluid paths according to the control signal that controller 10 produces, and makes hydraulic cylinder pressurization or decompression, orders about the dirty pipe 3 of middle empty set and advances or retreat, and does the shuttle-scanning motion.
Further preferably, described hydraulic cylinder is the waterpower cylinder, is connected with blowdown chamber 12.When the blowoff valve 9 of blowdown chamber 12 is opened, blowdown chamber 12 pressure significantly reduce with the eliminating of sewage, also reduce with the pressure in the waterpower cylinder that blowdown chamber 12 is connected, push ahead under the pressure of the liquid (or water) of piston outside piston in the waterpower cylinder, the dirty pipe 3 of empty set travels forward in driving simultaneously, and the dirty pipe 3 of empty set rotates under the recoil effect of recoil part 4 in the while; When the dirty pipe 3 of middle empty set moves forward to the top, control valve 8 (can be the two-bit triplet magnetic valve) pressure release, the outer liquid (or water) of piston is flowed out, the outer pressure of piston reduces, under the pressure-acting of filter chamber's 11 interior water, the dirty pipe 3 of middle empty set retreats, and closes until cleaning process finishes blowoff valve 9.Blowoff valve 9 cuts out, and the hydraulic pressure that blowdown chamber 12 and filter chamber 11 increase can make waterpower cylinder piston get back to its initial position, and filter begins to prepare next flushing cycle.
The described self-cleaning filter of the present embodiment, the pressure reduction suck up impurity dirt that produces when utilizing blowoff valve to open, utilize simultaneously the pressure of liquid (or water) to order about the dirty pipe of middle empty set and do the shuttle-scanning motion, and the recoil effect that utilizes water makes the dirty pipe rotation of middle empty set, except control assembly, the remaining part electric quantity consumption is very little, can significantly reduce energy consumption, reaches the purpose of energy-conserving and environment-protective.
Inferior selection of land, axial drive means 6 is linear motor, makes the dirty pipe 3 of middle empty set axially do the shuttle-scanning motion at it by rotating and reverse of linear motor.The stroke of the dirty pipe 3 of the stroke of linear motor and middle empty set is identical or different, not simultaneously, can by increasing intermediate connector, reach the identical effect of stroke.Accordingly, control valve 8 is electric-controlled switch, is connected with linear motor.The control signal that electric-controlled switch receives controller 10 generations opens or closes linear motor.
The control valve 8 of axial drive means 6 and control axial drive means 6, specific implementation is not limited in above-described mode, introduces no longer one by one herein.
Alternatively, coarse strainer 1 can be filter septum, be arranged on the line of demarcation of the first filtering area 111 and the second filtering area 112, perhaps,
Self-cleaning filter also comprises: pertusate dividing plate is set, is arranged on the line of demarcation of the first filtering area 111 and the second filtering area 112.
Further, alternatively, as shown in Figure 1, described filter also can comprise:
Alternatively, evagination suction nozzle 5 cross-distribution on the dirty pipe 3 of middle empty set, when contacting with fie screen 3, contact point is evenly distributed, and cleaning performance is better.
The described self-cleaning filter of the present embodiment, can realize intelligent control in use procedure, but whether automatic decision needs to clean, in cleaning process, normal filtration work is uninterrupted, and simultaneously cleaning is more thorough, and the impurity particle that can be stuck in screen surface is removed, electric quantity consumption is little during use, can reach the purpose of energy-conserving and environment-protective.
It should be noted that the described technical characterictic of the utility model embodiment, in the situation that do not conflict, but any combination is used.
The above; it only is the specific embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion by described protection domain with claim.
Claims (10)
1. a self-cleaning filter is characterized in that, comprising:
Shell forms filter chamber and blowdown chamber, and described filter chamber and described blowdown chamber share a seal diaphragm, wherein, described filter chamber is divided into the first filtering area and the second filtering area, is provided with water inlet on the shell of described the first filtering area, is provided with delivery port on the shell of described the second filtering area;
Coarse strainer, the shell that is arranged on described the first filtering area is inboard, and liquid to be filtered enters from described water inlet, flows into described the second filtering area after described coarse strainer filters;
Tubular fie screen, the shell that is arranged in described the second filtering area is inboard;
The recoil part of the dirty pipe of rotatable middle empty set and hollow, the closed at both ends of the dirty pipe of described middle empty set, one end is arranged in the second filtering area of described filter chamber, its surface is provided with the evagination suction nozzle, the other end passes described seal diaphragm, and to extend to described blowdown indoor, and the described recoil part indoor with described blowdown is connected, and described recoil part is fixing perpendicular to the dirty pipe of described middle empty set, the two ends of described recoil part are respectively arranged with spray orifice, and the spray orifice at described recoil part two ends is directed in opposite directions respectively;
Axial drive means, connector and control valve, described axial drive means is connected with the dirty pipe of described middle empty set by described connector, drives the dirty Guan Zaiqi of described middle empty set and axially does the shuttle-scanning motion, and described control valve is connected with described axial drive means;
Blowoff valve is arranged on the described blowdown chamber;
The first pressure sensor and the second pressure sensor are separately positioned on described water inlet and the described water outlet of described filter chamber;
Controller, its input are connected with described the second pressure sensor with described the first pressure sensor respectively, and its output is connected with described blowoff valve with described control valve respectively.
2. filter according to claim 1 is characterized in that,
Described evagination suction nozzle reclines mutually with described fie screen.
3. filter according to claim 1 is characterized in that,
Described axial drive means is hydraulic cylinder.
4. filter according to claim 3 is characterized in that,
Described hydraulic cylinder is the waterpower cylinder, is connected with described blowdown chamber.
5. according to claim 3 or 4 described filters, it is characterized in that,
Described control valve is the two-bit triplet magnetic valve, is arranged on the feed liquor path of described hydraulic cylinder.
6. filter according to claim 1 is characterized in that,
Described axial drive means is linear motor.
7. filter according to claim 6 is characterized in that,
Described control valve is electric-controlled switch, is connected with described linear motor.
8. filter according to claim 1 is characterized in that,
Described coarse strainer is filter septum, is arranged on the line of demarcation of described the first filtering area and described the second filtering area, perhaps,
Described self-cleaning filter also comprises: pertusate dividing plate is set, is fixed on the line of demarcation of described the first filtering area and described the second filtering area.
9. filter according to claim 8 is characterized in that, also comprises:
Support bar is fixed on described filter septum or the described dividing plate, connects with the dirty pipe of the described empty set that is arranged in described the second filtering area.
10. filter according to claim 1 is characterized in that,
Described evagination suction nozzle cross-distribution on the dirty pipe of described middle empty set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220260472 CN202762158U (en) | 2012-06-04 | 2012-06-04 | Self-cleaning filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220260472 CN202762158U (en) | 2012-06-04 | 2012-06-04 | Self-cleaning filter |
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| CN202762158U true CN202762158U (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220260472 Expired - Fee Related CN202762158U (en) | 2012-06-04 | 2012-06-04 | Self-cleaning filter |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301681A (en) * | 2013-05-23 | 2013-09-18 | 湖北三环专用汽车有限公司 | Vehicle-mounted city and town life sewage treatment system |
| CN105457386A (en) * | 2015-10-30 | 2016-04-06 | 崔春亮 | Submerged automatic filtering and fertilizer and drug applying apparatus in front of pump |
| CN105797455A (en) * | 2015-12-16 | 2016-07-27 | 乌鲁木齐天工兴水环保科技有限公司 | Screen filter capable of recycling pollution discharge water and achieving automatic cleaning |
| CN107497153A (en) * | 2017-09-25 | 2017-12-22 | 信义节能玻璃（四川）有限公司 | Self-cleaning water filters device |
| CN108404492A (en) * | 2018-05-16 | 2018-08-17 | 上海滤威过滤系统有限公司 | A kind of self-cleaning filter |
| CN110508053A (en) * | 2019-09-29 | 2019-11-29 | 河北润农节水科技股份有限公司 | A kind of soil pick-up formula self-cleaning net type filter |
| CN111971101A (en) * | 2018-04-15 | 2020-11-20 | 阿米亚德过滤系统公司 | Control mechanism of self-cleaning filtering system |
| CN113599915A (en) * | 2021-08-05 | 2021-11-05 | 青海盐湖工业股份有限公司 | Dust mixed gas processing system |
-
2012
- 2012-06-04 CN CN 201220260472 patent/CN202762158U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301681A (en) * | 2013-05-23 | 2013-09-18 | 湖北三环专用汽车有限公司 | Vehicle-mounted city and town life sewage treatment system |
| CN105457386A (en) * | 2015-10-30 | 2016-04-06 | 崔春亮 | Submerged automatic filtering and fertilizer and drug applying apparatus in front of pump |
| CN105457386B (en) * | 2015-10-30 | 2018-01-12 | 崔春亮 | Submerged automatic fitration fertilising medicine device before pump |
| CN105797455A (en) * | 2015-12-16 | 2016-07-27 | 乌鲁木齐天工兴水环保科技有限公司 | Screen filter capable of recycling pollution discharge water and achieving automatic cleaning |
| CN107497153A (en) * | 2017-09-25 | 2017-12-22 | 信义节能玻璃（四川）有限公司 | Self-cleaning water filters device |
| CN111971101A (en) * | 2018-04-15 | 2020-11-20 | 阿米亚德过滤系统公司 | Control mechanism of self-cleaning filtering system |
| CN108404492A (en) * | 2018-05-16 | 2018-08-17 | 上海滤威过滤系统有限公司 | A kind of self-cleaning filter |
| CN110508053A (en) * | 2019-09-29 | 2019-11-29 | 河北润农节水科技股份有限公司 | A kind of soil pick-up formula self-cleaning net type filter |
| CN113599915A (en) * | 2021-08-05 | 2021-11-05 | 青海盐湖工业股份有限公司 | Dust mixed gas processing system |
| CN113599915B (en) * | 2021-08-05 | 2022-11-11 | 青海盐湖工业股份有限公司 | Dust mixed gas processing system |
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