CN103961941B - A kind of self-cleaning air filter apparatus and clean method thereof - Google Patents
A kind of self-cleaning air filter apparatus and clean method thereof Download PDFInfo
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- CN103961941B CN103961941B CN201410167441.0A CN201410167441A CN103961941B CN 103961941 B CN103961941 B CN 103961941B CN 201410167441 A CN201410167441 A CN 201410167441A CN 103961941 B CN103961941 B CN 103961941B
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Abstract
The present invention relates to air cleaner, particularly a kind of self-cleaning air filter apparatus and clean method thereof. This self-cleaning air filter apparatus, comprise rotating filter body, air after rotating filter body filters enters air fine cleaner, air fine cleaner is respectively with rotating filter body driver, be connected being adsorbed on the blow cleaner that the external foreign material of rotating filter blow down, and this rotating filter body driver drives rotating filter body rotates. In the time that united reaper carries out harvesting, can remove for a long time artificial cleaning from, significantly improve production efficiency; Can avoid the problem of large-scale blowback self-cleaning type air filtration system secondary pollution completely, can in the environment that has the willow catkins flying in the air such as willow cotton, Yang Mian, normally work, having realized the long-time zero dimension of large-scale air filtration system protects, the present invention is simple and compact for structure, can significantly reduce cost of manufacture, operation high efficient and reliable, can significantly reduce maintaining cost, can not rely on the clean filtration that manually automatically completes air.
Description
(1) technical field
The present invention relates to air cleaner, particularly a kind of self-cleaning air filter apparatus and clean method thereof.
(2) background technology
When united reaper carries out harvesting, because harvesting circumstance complication is severe, short time intrinsic motivation cooling water tank,Engine air filter, generator, air-conditioning condenser will be blocked, and engine radiating water tank causes engine after stopping upTemperature sharply raises, and causes the accidents such as engine cut-off even burns out, and after engine air filter stops up, engine power is anxiousAcute decline, fuel consume sharply increases, and after generator stops up, heat can not distribute in time, causes generator to burn out, air conditioner condensationAfter device stops up, heat can not distribute in time, causes air-conditioning system to work, and even compressor of air conditioner burns out, and at present, does not also haveThe effective ways that address the above problem.
The existing large-scale blowback self-cleaning air filter scale of construction is huge, and complex manufacturing technology is with high costs, in self-cleaning processIn inevitably can produce secondary pollution, in the environment that has the willow catkins flying in the air such as willow cotton, Yang Mian, cannot work.
(3) summary of the invention
The design, in order to make up the deficiencies in the prior art, provides a kind of self-cleaning air filter apparatus and clean side thereofMethod, this device can not rely on the clean filtration that manually automatically completes air, can effectively solve united reaper and gather inWhen operation, short time intrinsic motivation cooling water tank, engine air filter, generator, air-conditioning condenser are blocked, Wu FagongThe problem of doing, can effectively solve the secondary pollution problem that large-scale blowback self-cleaning type air filtration system produces, and can have willowIn the environment of the willow catkins flying in the air such as cotton, Yang Mian, normally work, realized the object that the long-time zero dimension of large-scale air filtration system is protected.
The present invention is achieved through the following technical solutions:
A kind of self-cleaning air filter apparatus, comprises rotating filter body, and its special character is: after rotating filter body filtersAir enter air fine cleaner, air fine cleaner respectively with rotating filter body driver, external by being adsorbed on rotating filterThe blow cleaner that foreign material blow down is connected, this rotating filter body driver drives rotating filter body rotation.
Self-cleaning air filter apparatus of the present invention, air fine cleaner is connected with the compressor of source of the gas is provided for system, shouldCompressor is respectively with rotating filter body driver, be connected being adsorbed on the blow cleaner that the external foreign material of rotating filter blow down.
Self-cleaning air filter apparatus of the present invention, the air after rotating filter body filters also enters respectively engine radiatingWater tank, engine air filter, generator, air-conditioning condenser, air-conditioning condenser is placed in engine radiating water tank front portion.
Self-cleaning air filter apparatus of the present invention, rotating filter body driver comprises blower, pneumatic driver, lazyWheel.
Self-cleaning air filter apparatus of the present invention, this self-cleaning air filter apparatus also comprises assorted that blow cleaner is blown afloatThe sweeper that thing is continuously removed.
Self-cleaning air filter apparatus of the present invention, this self-cleaning air filter apparatus also comprises system controller, dust suctionBlower fan, deduster, spray thrower, this system controller is connected with B/P EGR Back Pressure Transducer EGR, rotating filter body driver respectively.
Rotating filter body driver Automatic continuous constantly drives the rotation of rotating filter body in the course of the work, has realized and having connectedThe object of continuous continuous automated cleaning air. Blow cleaner continuously blows off rotating filter body from inside to outside in the course of the work,Realize the lasting cleaning of rotating filter body. Air fine cleaner, for blow cleaner provides clean gas source, prevents rotating filter body insidePollute.
Self-cleaning air filter apparatus of the present invention, this self-cleaning air filter apparatus also comprises air accumulator, bleed pressureSensor, this system controller is also connected with source of the gas magnetic valve, spray thrower magnetic valve respectively.
A clean method for self-cleaning air filter apparatus, comprises the following steps: system is started working, rotating filter bodyAir after filtration enters air fine cleaner, and the pure air after air fine cleaner filters enters and blows off through piping respectivelyDevice and rotating filter body driver, blow cleaner blows down from inside to outside by being adsorbed on the external foreign material of rotating filter,, rotates through meanwhileThe entry into service of filter body driver, rotating filter body driver drives rotating filter body continuously rotates, and blow cleaner starts to connectContinue and constantly blow off from inside to outside rotating filter body, completed self-cleaning process.
The clean method of self-cleaning air filter apparatus of the present invention, system is started working, and ceding of Taiwan power output shaft drivesCompressor running, the air after rotating filter body filters is got air port through air fine cleaner and is entered air fine cleaner, air fine filteringThe effect of device is to prevent rotating filter body internal contamination for blow cleaner provides pure air, through air fine cleaner filter after cleanNet air enters the compressor that source of the gas is provided for system, and the air after compressor compression enters blow cleaner and rotates through through pipingFilter body driver, blow cleaner blows down from inside to outside by being adsorbed on the external foreign material of rotating filter, meanwhile, rotating filter body driverEntry into service, rotating filter body driver drives rotating filter body continuously rotates, blow cleaner start continuously byInside outwards blow off rotating filter body, the foreign material that sweeper blows afloat blow cleaner are continuously removed, and make rotating filter body multipleIn assorted severe harvesting environment, keep clean, completed self-cleaning process; Air after rotating filter body filters enters respectivelyEngine radiating water tank, engine air filter, generator, air-conditioning condenser, air-conditioning condenser is placed in engine radiating waterCase front portion.
The clean method of self-cleaning air filter apparatus of the present invention, in the time that B/P EGR Back Pressure Transducer EGR reaches setting value, system is openedBeginning work, system controller control source of the gas magnetic valve is opened, and compressed air is through preventing the air of rotating filter body internal contaminationFine cleaner enters blow cleaner after filtering, and blow cleaner starts continuously to blow off from inside to outside rotating filter body, meanwhile, and system controlDevice control rotating filter body driver running processed, rotating filter body starts continuously to rotate, dust absorption fan running, spray throwerMagnetic valve is opened, and the dust foreign material that blow cleaner blows down enter deduster, the dust that the water smoke of spray thrower ejection blows down blow cleanerForeign material adsorption and sedimentation, after deduster collection, absorption, sedimentation, processing dust foreign material, dust absorption fan is discharged cleaned air, has completedSelf-cleaning process, the rotation of rotating filter body, after blow cleaner blows off, B/P EGR Back Pressure Transducer EGR recovers normal value, system controllerControl system quits work, and completes automatically cleaning process.
The clean method of self-cleaning air filter apparatus of the present invention, in the time that B/P EGR Back Pressure Transducer EGR reaches setting value, system is openedBeginning work, system controller control is turned round for system provides the compressor of source of the gas, and air accumulator starts storing compressed air, works as gas storageWhen the gas pressure of tank stores reaches the setting value of bleed pressure sensor, system controller control source of the gas magnetic valve is opened, and pressesContracting air enters blow cleaner through preventing after the air fine cleaner of rotating filter body internal contamination from filtering, and blow cleaner starts by introversionContinuously blow off rotating filter body outward, meanwhile, the running of system controller control rotating filter body driver, rotating filter bodyStart continuously rotation, dust absorption fan running, spray thrower magnetic valve is opened, and the dust foreign material that blow cleaner blows down enter dedustingDevice, the dust foreign material adsorption and sedimentation that the water smoke of spray thrower ejection blows down blow cleaner, deduster collection, absorption, sedimentation, processing dirtAfter soil foreign material, dust absorption fan is discharged cleaned air, has completed self-cleaning process, and the rotation of rotating filter body, blows through blow cleanerAfter clean, B/P EGR Back Pressure Transducer EGR recovers normal value, and system controller control system quits work, and completes automatically cleaning process.
The invention provides self-cleaning air filter apparatus, can not rely on the clean filtration that manually automatically completes air,Apparatus of the present invention can be for engine radiating water tank, engine air filter, generator, the air conditioner condensation of united reaperDevice badly gathers in the automatically cleaning air filtration in environment in complexity, and apparatus of the present invention can also be used for oxygen raw material air compressor machine, steelThe automatically cleaning air filtration of iron industry blast furnace air inducing, gas turbine, large-size air conditioning supply air system, large ship engine etc., thisThe bright united reaper that can effectively solve in complexity is badly gathered in environment when operation, engine radiating water tank, engine airThe blocked problem that cannot work in cleaner, generator, air-conditioning condenser short time, has reached united reaper and has receivedWhile cutting operation, engine radiating water tank, engine air filter, generator, air-conditioning condenser are removed from artificial clean for a long timeObject, can effectively solve the secondary pollution problem that large-scale blowback self-cleaning type air filtration system produces, can have willow cotton,In the environment of the willow catkins flying in the air such as Yang Mian, normally work, realized the object that the long-time zero dimension of large-scale air filtration system is protected.
Beneficial effect of the present invention: in the time that united reaper carries out harvesting, can simultaneously realize engine radiating waterThe automatically cleaning air filtration of case, engine air filter, generator, air-conditioning condenser, can remove artificial cleaning for a long time from,Significantly improve production efficiency; Can avoid the problem of large-scale blowback self-cleaning type air filtration system secondary pollution completely, canIn the environment that has the willow catkins flying in the air such as willow cotton, Yang Mian, normally work, realized the long-time zero dimension of large-scale air filtration system to protect, thisBright simple and compact for structure, can significantly reduce cost of manufacture, operation high efficient and reliable, can significantly reduce maintaining cost, canNot rely on the clean filtration that manually automatically completes air.
(4) brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Structural representation when accompanying drawing 1 is apparatus of the present invention purposes 1;
Accompanying drawing 2 is the structural representation of rotating filter body driver of the present invention;
Structural representation when accompanying drawing 3 is apparatus of the present invention purposes 2;
Accompanying drawing 4 is deduster of the present invention and spray thrower structural representation;
In figure, 1 rotating filter body, 2 rotating filter body drivers, 3 blow cleaners, 4 air fine cleaners, 5 compressors, 6 filtrates,7 ceding of Taiwan power output shafts, 8 air fine cleaners are got air port, 9 sweepers, 10 engine radiating water tanks, 11 engine air filtersGet air port, 12 generators are got air port, 13 air-conditioning condensers, and 14 blowers, 15 pneumatic drivers, 16 idle pulleys, 17 B/P EGR Back Pressure Transducer EGRs,18 system controllers, 19 air accumulators, 20 bleed pressure sensors, 21 source of the gas magnetic valves, 22 dust absorption fans, 23 spray thrower electromagnetismValve, 24 dedusters, 25 spray throwers.
(5) detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present invention. This embodiment comprises rotating filter body, after rotating filter body 1 filtersAir enter air fine cleaner 4, air fine cleaner 4 respectively with rotating filter body driver 2, will be adsorbed on rotating filter body 1The blow cleaner 3 that outer foreign material blow down is connected, and this rotating filter body driver 2 drives rotating filter body 1 to rotate. Gas fine cleaner 4 withConnect for system provides the compressor 5 of source of the gas, this compressor 5 respectively with rotating filter body driver 2, will be adsorbed on rotating filterThe blow cleaner 3 that foreign material outside body 1 blow down is connected. Air after rotating filter body 1 filters also enter respectively engine radiating water tank,Engine air filter, generator, air-conditioning condenser, air-conditioning condenser 13 is placed in engine radiating water tank 10 front portions. Should be certainlyClean air filter also comprises the sweeper 9 that foreign material that blow cleaner 3 is blown afloat are continuously removed. This automatically cleaning airFilter also comprises system controller 18, dust absorption fan 22, deduster 24, spray thrower 25, this system controller 18 respectively withB/P EGR Back Pressure Transducer EGR 17, rotating filter body driver 2 connect. This self-cleaning air filter apparatus also comprises air accumulator 19, source of the gas pressurePower sensor 20, this system controller 18 is also connected with source of the gas magnetic valve 21, spray thrower magnetic valve 23 respectively.
The purposes of apparatus of the present invention: (1) can be for the engine radiating water tank of united reaper, engine air filteringDevice, generator, air-conditioning condenser badly gather in the automatically cleaning air filtration in environment in complexity; (2) apparatus of the present invention are all rightFor oxygen raw material air compressor machine, steel industry blast furnace air inducing, gas turbine, large-size air conditioning supply air system, large ship engine etc.Automatically cleaning air filtration.
In the time that united reaper starts harvesting, system is started working, and ceding of Taiwan power output shaft 7 drives compressor 5 to transportTurn, the air after rotating filter body 1 filters is got air port 8 through air fine cleaner and is entered air fine cleaner 4, air fine cleaner 4Effect is to prevent rotating filter body 1 internal contamination for blow cleaner 3 provides pure air, clean after air fine cleaner 4 filtersNet air enters the compressor 5 that source of the gas is provided for system, and the air after compressor 5 compressions enters blow cleaner 3 and revolves through pipingTurn filtering bodies driver 2, blow cleaner 3 blows down the foreign material that are adsorbed on outside rotating filter body 1 from inside to outside, meanwhile, and rotating filter2 entrys into service of body driver, rotating filter body driver 2 drives rotating filter body 1 continuously to rotate, and blow cleaner 3 startsContinuously blow off from inside to outside rotating filter body 1, the foreign material that sweeper 9 blows afloat blow cleaner 3 are continuously removed, and makeIt is clean that rotating filter body 1 keeps in the severe harvesting environment of complexity, completed self-cleaning process.
Air after rotating filter body 1 filters enters engine radiating water tank 10, has solved engine radiating water tank 10 and has existedThe blocked problem that cannot work in short time when united reaper carries out harvesting, has reached and has removed for a long time artificial cleaning fromObject.
Air after rotating filter body 1 filters is got air port 11 through engine air filter and is entered engine air filteringDevice, gets air port 12 and enters generator through generator, has solved engine air filter and generator enters at united reaperThe blocked problem that cannot work in short time when row harvesting, has reached and has removed for a long time artificial clean object from.
Air-conditioning condenser 13 is placed in engine radiating water tank 10 front portions, and the air after rotating filter body 1 filters enters air-conditioningCondenser 13, has solved air-conditioning condenser 13 blocked cannot work in the short time in the time that united reaper carries out harvestingProblem, has reached and has removed for a long time artificial clean object from.
In this device, for raising system is badly gathered in the reliability in environment in complexity, rotating filter body driver 2 segmentsFor blower 14, pneumatic driver 15, idle pulley 16, under the various extreme conditions such as generator does not generate electricity, system still can be justNormal work.
For oxygen raw material air compressor machine, steel industry blast furnace air inducing, gas turbine, large-size air conditioning supply air system, large shipWhen the automatically cleaning air filtration of engine etc., device used after a period of time, and rotating filter body 1 is dirty, when B/P EGR Back Pressure Transducer EGR 17While reaching setting value, system is started working, and system controller 18 is controlled as system provides the compressor 5 of source of the gas and turned round, air accumulator19 start storing compressed airs, when the gas pressure storing when air accumulator 19 reaches the setting value of bleed pressure sensor 20, areSystem controller 18 is controlled source of the gas magnetic valve 21 and is opened, and compressed air is through preventing the air fine filtering of rotating filter body 1 internal contaminationAfter device 4 filters, enter blow cleaner 3, blow cleaner 3 starts continuously to blow off from inside to outside rotating filter body 1, meanwhile, and system controlDevice 18 processed is controlled rotating filter body driver 2 and is turned round, and rotating filter body 1 starts continuously to rotate, and dust absorption fan 22 turns round,Spray thrower magnetic valve 23 is opened, and the dust foreign material that blow cleaner 3 blows down enter deduster 24, and the water smoke that spray thrower 25 sprays will blow offThe dust foreign material adsorption and sedimentation that device 3 blows down, deduster 24 is collected, after absorption, sedimentation, processing dust foreign material, and dust absorption fan 22 is arrangedGo out cleaned air, effectively prevent secondary pollution, completed self-cleaning process.
Rotating filter body 1 rotates, and after blow cleaner 3 blows off, B/P EGR Back Pressure Transducer EGR 17 recovers normal value, system controller 18Control system quits work, and completes automatically cleaning process, has solved the problem that filtrate 6 is secondary polluted, and is having willow cotton, Yang Mian etc. eachIn the environment of kind willow catkins flying in the air, still can normally work, reach the object that long-time zero dimension is protected.
Under the prerequisite that has clean compressed air, can omit compressor 5 and air accumulator 19.
System controller 18 is divided into automatic mode, timing mode, three kinds of patterns of manual mode.
Claims (9)
1. a self-cleaning air filter apparatus, comprises rotating filter body, it is characterized in that: after rotating filter body (1) filtersAir enters air fine cleaner (4), air fine cleaner (4) respectively with rotating filter body driver (2), will be adsorbed on rotating filterThe blow cleaner (3) that the outer foreign material of body (1) blow down is connected, and this rotating filter body driver (2) drives rotating filter body (1) rotation,This self-cleaning air filter apparatus also comprises system controller (18), dust absorption fan (22), deduster (24), spray thrower (25),This system controller (18) is connected with B/P EGR Back Pressure Transducer EGR (17), rotating filter body driver (2) respectively.
2. self-cleaning air filter apparatus according to claim 1, is characterized in that: air fine cleaner (4) with for systemProvide source of the gas compressor (5) connect, this compressor (5) respectively with rotating filter body driver (2), will be adsorbed on rotating filterThe blow cleaner (3) that the outer foreign material of body (1) blow down is connected.
3. self-cleaning air filter apparatus according to claim 1 and 2, is characterized in that: after rotating filter body (1) filtersAir also enter respectively engine radiating water tank, engine air filter, generator, air-conditioning condenser (13), air-conditioning coldCondenser (13) is placed in engine radiating water tank (10) front portion.
4. self-cleaning air filter apparatus according to claim 1 and 2, is characterized in that: this automatically cleaning air filtration dressPut the sweeper (9) that also comprises that foreign material that blow cleaner (3) is blown afloat are continuously removed.
5. self-cleaning air filter apparatus according to claim 1, is characterized in that: this self-cleaning air filter apparatus alsoComprise air accumulator (19), bleed pressure sensor (20), this system controller (18) also respectively with source of the gas magnetic valve (21), sprayDevice magnetic valve (23) connects.
6. a clean method for self-cleaning air filter apparatus according to claim 1 and 2, is characterized in that: compriseFollowing steps: system is started working, the air after rotating filter body (1) filters enters air fine cleaner (4), through air fine filteringPure air after device (4) filters enters blow cleaner (3) and rotating filter body driver (2), blow cleaner (3) through piping respectivelyBlow down being from inside to outside adsorbed on the outer foreign material of rotating filter body (1), meanwhile, rotating filter body driver (2) entry into service, revolvesTurn filtering bodies driver (2) and drive rotating filter body (1) continuously to rotate, blow cleaner (3) starts continuously by interiorOutwards blow off rotating filter body (1), completed self-cleaning process.
7. the clean method of self-cleaning air filter apparatus according to claim 6, is characterized in that: system starts workDo, ceding of Taiwan power output shaft (7) drives compressor (5) running, and the air after rotating filter body (1) filters is through air fine cleanerGet air port (8) and enter air fine cleaner (4), the effect of air fine cleaner (4) is to prevent from revolving for blow cleaner (3) provides pure airTurn filtering bodies (1) internal contamination, the pure air after air fine cleaner (4) filters enters provides calming the anger of source of the gas for systemMachine (5), the air after compressor (5) compression enters blow cleaner (3) and rotating filter body driver (2), blow cleaner through piping(3) blow down being from inside to outside adsorbed on the outer foreign material of rotating filter body (1), meanwhile, rotating filter body driver (2) starts fortuneTurn, rotating filter body driver (2) drives rotating filter body (1) continuously to rotate, and blow cleaner (3) starts continuouslyBlow off from inside to outside rotating filter body (1), the foreign material that sweeper (9) blows afloat blow cleaner (3) are continuously removed, and make rotationIt is clean that filtering bodies (1) keeps in the severe harvesting environment of complexity, completed self-cleaning process; Rotating filter body (1) filtersAfter air enter respectively engine radiating water tank (10), engine air filter, generator, air-conditioning condenser (13), skyAdjust condenser (13) to be placed in engine radiating water tank (10) front portion.
8. the clean method of self-cleaning air filter apparatus according to claim 7, is characterized in that: comprise following stepRapid: in the time that B/P EGR Back Pressure Transducer EGR (17) reaches setting value, system is started working, system controller (18) is controlled source of the gas magnetic valve (21)Open, compressed air enters blow cleaner (3) through preventing after the air fine cleaner (4) of rotating filter body (1) internal contamination from filtering,Blow cleaner (3) starts continuously to blow off from inside to outside rotating filter body (1), and meanwhile, system controller (18) is controlled rotationFiltering bodies driver (2) running, rotating filter body (1) starts continuously rotation, dust absorption fan (22) running, spray thrower electricityMagnet valve (23) is opened, and the dust foreign material that blow cleaner (3) blows down enter deduster (24), and the water smoke of spray thrower (25) ejection will blow offThe dust foreign material adsorption and sedimentation that device (3) blows down, after deduster (24) collection, absorption, sedimentation, processing dust foreign material, dust absorption fan(22) discharge cleaned air, completed self-cleaning process, rotating filter body (1) rotation, after blow cleaner (3) blows off, negativePressure sensor (17) recovers normal value, and system controller (18) control system quits work, and completes automatically cleaning process.
9. the clean method of self-cleaning air filter apparatus according to claim 8, is characterized in that: work as B/P EGR Back Pressure Transducer EGR(17) while reaching setting value, system is started working, and system controller (18) is controlled compressor (5) fortune that source of the gas is provided for systemTurn, air accumulator (19) starts storing compressed air, and the gas pressure storing when air accumulator (19) reaches bleed pressure sensor(20) when setting value, system controller (18) is controlled source of the gas magnetic valve (21) and is opened, and compressed air is through preventing rotating filterThe air fine cleaner (4) of body (1) internal contamination enters blow cleaner (3) after filtering, and blow cleaner (3) starts successive from inside to outsideBlow off rotating filter body (1), meanwhile, system controller (18) is controlled rotating filter body driver (2) running, rotating filter body(1) start continuously rotation, dust absorption fan (22) running, spray thrower magnetic valve (23) is opened, the dirt that blow cleaner (3) blows downSoil foreign material enter deduster (24), and the dust foreign material adsorption and sedimentation that the water smoke of spray thrower (25) ejection blows down blow cleaner (3), removesAfter dirt device (24) collection, absorption, sedimentation, processing dust foreign material, dust absorption fan (22) is discharged cleaned air, has completed self-cleaningProcess, rotating filter body (1) rotation, after blow cleaner (3) blows off, B/P EGR Back Pressure Transducer EGR (17) recovers normal value, system controlDevice (18) control system quits work, and completes automatically cleaning process.
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| CN201410167441.0A CN103961941B (en) | 2014-04-24 | 2014-04-24 | A kind of self-cleaning air filter apparatus and clean method thereof |
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| CN201410167441.0A CN103961941B (en) | 2014-04-24 | 2014-04-24 | A kind of self-cleaning air filter apparatus and clean method thereof |
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| CN103961941B true CN103961941B (en) | 2016-05-04 |
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| CN110678619B (en) * | 2017-04-05 | 2021-02-02 | 阿莫绿色技术有限公司 | Intelligent window and driving method thereof |
| CN108499246B (en) * | 2018-05-03 | 2020-06-26 | 池仁淼 | Accumulated dust recycling device for industrial waste gas treatment |
| CN111828211A (en) * | 2020-07-09 | 2020-10-27 | 东风特汽(十堰)客车有限公司 | Self-cleaning air filter device |
| CN114247225B (en) * | 2021-11-17 | 2023-05-16 | 江苏百维能源科技有限公司 | Electric energy metering appliance cabinet |
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