CN204276155U - High energy pulse wet type moves deashing electrostatic precipitator - Google Patents
High energy pulse wet type moves deashing electrostatic precipitator Download PDFInfo
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- CN204276155U CN204276155U CN201420489578.3U CN201420489578U CN204276155U CN 204276155 U CN204276155 U CN 204276155U CN 201420489578 U CN201420489578 U CN 201420489578U CN 204276155 U CN204276155 U CN 204276155U
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- deashing
- hoisting
- hoisting type
- deashing mechanism
- electrostatic precipitator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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Abstract
The utility model is the problem that can not effectively trap the fine particle that particle diameter is 0.1-2.0um for existing deduster, provides a kind of high energy pulse wet type to move deashing electrostatic precipitator.This electrostatic precipitator, comprise housing, housing is provided with dusty gas inlet port and clean air outlet, high impulse electric field is provided with in described housing, lower housing portion is provided with ash-unloading hopper, being provided with between described inlet port and outlet can at the hoisting type deashing mechanism of vertical direction movement, hoisting type deashing mechanism comprises air inlet and exhaust outlet, the sparge pipe of dust brush sweeper and horizontally set is provided with in hoisting type deashing mechanism, sparge pipe is provided with multiple fountain head, hoisting type deashing mechanism lower end is provided with dust self-unloading door, housing is provided with the hoisting mechanism promoting the motion of hoisting type deashing mechanism.The utility model spray water belt cleans upper and lower integrated mobile deashing device, can select spraying and press over system, remain two-fold advantage, reach domestic and international top standard according to without operational mode.
Description
Technical field
The utility model relates to electrostatic precipitation correlative technology field, specifically, relate to a kind of high energy pulse wet type and move deashing electrostatic precipitator, spray water belt is particularly adopted to clean upper and lower integrated mobile deashing device, can select different operational modes as required, spraying and press over system independent operating and integration interlock, so both remain spraying and press over system runs respective advantage, when solving again the operation of independent spraying, the problem that nozzle layout of sprinkler is difficult and shower nozzle quantity is large.When overflow runs, dust deposit removal of deposit difficult problem, according to operating mode, while water spray, while cleaning just can address these problems very well, in conjunction with to high energy pulse power supply, PM2.5 removal efficiency 90%, belong to the flue gas ash removal field in air contaminant treatment, the air that can be applicable to produce PM2.5 coal-burning boiler is administered.
Background technology
Regulation in " fossil-fuel power plant atmospheric pollutant emission standard " (GB13223-2011), general area coal-fired pot chimney soot emissions limit value 30mg/m3, key area coal-burning boiler chimney soot emissions limit value 20mg/m3, " ambient air quality " (GB3095-2012) according to new revision includes PM2.5 in pressure monitoring category, and clear stipulaties time requirement, by 2015, carry out PM2.5 monitoring in the above city of all regions of China; 2016, ambient air quality situation all according to the standard monitoring of new revision and will be evaluated in various places, and issues result to society.New " ambient air quality " (GB3095-2012) has set up PM2.5 concentration limit, the PM2.5 mean annual concentration limit value of regulation class one zone is 15 μ g/m3,24 hour average concentration limit values are 35 μ g/m3, the PM2.5 mean annual concentration limit value of class two zone is 35 μ g/m3,24 hour average concentrations are limited to 75 μ g/m3, on January 1st, 2016 rises, and the whole nation is by this new standard of enforcement.
Present Environmental-protecting dust-removing emission limit 30mg/m3 to 20mg/m3 is the meal dirt of removing more than PM10, left more than 90% is PM2.5, be equivalent to thickness dust separation, discharge a large amount of PM2.5, PM2.5 gathers long distance delivery can produce haze, once human body suction can directly enter lung or blood, serious harm is healthy, this is a kind of extensive, the administration way of curing the symptoms, not the disease, attacks PM2.5 directly, makes war by new technology to PM2.5, more limited environmental protection fund is not thrown into this electrostatic precipitation and change traveling electrode, or change in the backward technological transformation of bag-type dust.
Conventional high-effective dust-removing equipment such as electric cleaner and bag dust collector can not effectively trap the fine particle that particle diameter is 0.1-2.0um.Electric cleaner is very high to the granule dedusting efficiency being greater than 10um, but when particle diameter is less than 2um, efficiency of dust collection will significantly decline, dust-collecting efficiency can lower than 90%, in extreme circumstances, efficiency even can drop to less than 50%, from the sack cleaner of electric cleaner emit quantity maximum be exactly the fine grained of 0.2-2um.Bag dust collector is also like this, no matter how high its efficiency is, the particle major part of discharge is all less than 2.5um, does not therefore have the technology of a kind of new Efficient Collection PM2.5um up to now, be difficult to collect subparticle (PM2.5) with electric cleaner, mainly contain two reasons:
1, the charged difficulty of subparticle, we adopt high energy pulse Power supply, in very short time, discharge product with the energy density of superelevation (about normal current 1,000 times).When time window is enough narrow, so that when puncturing required time before being less than dust perfact polarization, high voltage electric energy will make dust charged with greater efficiency uniformly, especially 2um powder dust particle efficiency of dust collection is improved a lot, what generally adopt at present is, ordinary silicon rectifier power source and common high frequency electric source, these two kinds of power supplys do not make the ability being less than PM2.5 charging particle.
2, subparticle secondary fly-up, move to dust collecting pole plate under the effect of electric field force after subparticle is charged and deposit, necessary deashing after reaching certain thickness, traditional vibration dust-cleaning mode can produce secondary fly-up, now adopt dry type to move deashing, significantly can reduce secondary fly-up.
Wet method is adopted to move deashing, significantly can reduce secondary fly-up, Wet-electric duster has the function of trapping fine dust, ideal to the trapping effect of fine, moist, stickiness or high resistivity dust, there is not flying upward again of dust collection in Wet-electric duster, this is the result having adhesion between dust owing to being caught and water, and traditional vibration dust-cleaning can produce more than 25% dust secondary fly-up.Ultrafine dust flies upward larger, if application wet method just can reduce that this flies upward 25%, just can qualified discharge.
Wet electrical dust precipitator is as the effective equipment of control coal-fired flue-gas PM2.5, in the American-European and existing application of Japan, wet electrical dust precipitator also can be divided into cross-flow type (horizontal) and vertical-flow (vertical), cross-flow type mostly is plank frame, gas flow is horizontal direction turnover, similar, in dry electric precipitation device, mostly vertical-flowly is tubular structure, and gas flow is vertical direction turnover.Adopt the mode deashings such as water spray or overflow water.
Utility model content
The utility model is the problem that can not effectively trap the fine particle that particle diameter is 0.1-2.0um for existing deduster, provides a kind of high energy pulse wet type to move deashing electrostatic precipitator.
The required technical problem solved of the utility model, can be achieved through the following technical solutions:
A kind of high energy pulse wet type moves deashing electrostatic precipitator, comprise housing, described housing is provided with dusty gas inlet port and clean air outlet, positive pole collecting electrode plate and negative discharge electrode is provided with in described housing, high-voltage pulse power source is connected with between described positive pole collecting electrode plate and negative discharge electrode, described lower housing portion is provided with ash-unloading hopper, it is characterized in that: being provided with between described dusty gas inlet port and clean air outlet can at the hoisting type deashing mechanism of vertical direction movement, described hoisting type deashing mechanism comprises the air inlet arranged towards dusty gas inlet port side and the exhaust outlet arranged towards clean air outlet side, dust brush sweeper is provided with in described hoisting type deashing mechanism, the sparge pipe of horizontally set is provided with in described hoisting type deashing mechanism, described sparge pipe is provided with multiple fountain head, described hoisting type deashing mechanism lower end is provided with dust self-unloading door, described housing is also provided with the hoisting mechanism for promoting the motion of hoisting type deashing mechanism.
In the utility model, described hoisting type deashing mechanism, comprises lift frame, and described lift frame is provided with leading block, and described housing is provided with the guide rail coordinated with leading block.
Described positive pole collecting electrode plate is fixedly installed, described lift frame comprises the two block frame plates described positive pole collecting electrode plate holder being held in centre, two connecting plates are provided with between the two ends of described two block frame plates, described two connecting plates are provided with opening, and described dust self-unloading door is arranged on two block frame plate lower ends.
Described lifting frame frame plate is anticorrosion frame plate.
In the utility model, described hoisting mechanism, comprise the reducing motor being arranged on described case top, the output shaft of described reducing motor is provided with Winding rope, the free end of described Winding rope connects described hoisting type deashing mechanism, and the motion track of described case top Winding rope is provided with fixed pulley.
In the utility model, described hoisting type deashing mechanism is multiple, and described multiple hoisting type deashing mechanism is arranged continuously along dusty gas inlet port and clean air outlet direction;
Or described hoisting type deashing mechanism is multiple, described multiple hoisting type deashing mechanism is arranged side by side between dusty gas inlet port and clean air outlet;
Or described hoisting type deashing mechanism is multiple, described multiple hoisting type deashing mechanism side by side direction is arranged in the mode of lining up on dusty gas inlet port and clean air outlet direction and between dusty gas inlet port and clean air outlet.
Described multiple hoisting type deashing mechanism adopts intersection hoisting way to promote.
In the utility model, described hoisting mechanism, comprise the reducing motor being arranged on described case top, the output shaft of described reducing motor is provided with multiple Winding rope, the free end of described multiple Winding rope connects multiple hoisting type deashing mechanism respectively, described case top is provided with the first fixed pulley, and described case top is provided with and multiple hoisting type deashing mechanism multiple second fixed pulley one to one, and described multiple Winding rope is successively set on the first fixed pulley and the second fixed pulley.
In the utility model, described negative discharge electrode is stainless steel helix or prickle wire or acupuncture line.
In the utility model, the distance between positive pole collecting electrode plate and negative discharge electrode 200 millimeters to 300 millimeters, being preferably is 150 millimeters.
High energy pulse wet type of the present utility model moves deashing electrostatic precipitator, maximum feature is that cleaning formula moves wet method water spray deashing device, be different from the domestic fixing point that generally adopts at present to spray water or fixing point overflow water periodic flushing method, make dust along with washing away the flowing of liquid and the method removed, the utility model core technology is that spray water belt cleans upper and lower integrated mobile deashing device, spraying and press over system can be selected according to without operational mode, independent operating and integrated through transport, not only retain advantage that spraying and press over system run but also solve independent spraying when running, the problem that nozzle layout of sprinkler is difficult and shower nozzle quantity is large, run with press over system, water consumption causes secondary pollution greatly, press over system causes dust removal of deposit difficulty, while water spray, while cleaning, just solve these problems very well, in conjunction with high energy pulse power supply, PM2.5 removal efficiency 90%, reach domestic and international top standard.
Accompanying drawing explanation
The utility model is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is longitudinal cross-sectional schematic of the present utility model.
Fig. 2 is longitudinal cross-sectional schematic of another angle of the utility model.
Fig. 3 is the arrangement schematic diagram of the utility model hoisting type deashing mechanism.
Fig. 4 is the structural representation of the utility model hoisting type deashing mechanism.
Detailed description of the invention
In order to make technological means of the present utility model, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, set forth the utility model further.
Purport of the present utility model is, by processing in-problem analysis in PM2.5 problem to existing deduster, for the problem that existing deduster can not effectively trap the fine particle that particle diameter is 0.1-2.0um, a kind of high energy pulse wet type is provided to move deashing electrostatic precipitator.
See Fig. 1 to Fig. 3, high energy pulse wet type of the present utility model moves deashing electrostatic precipitator, comprise housing 1, housing 1 is the basis of whole electrostatic precipitator, miscellaneous part is all arranged on housing 1, housing 1 is provided with dusty gas inlet port 11 and clean air outlet 12, dusty gas inlet port 11 and clean air outlet 12 are arranged on the two ends of housing 1, the operation principle of electrostatic precipitator utilizes high voltage electric field that flue gas is ionized, dust in dusty gas charged under electric field action with flow separation, the negative pole of high voltage electric field is made up of the plain conductor of different section shape, usually negative discharge electrode 21 is referred to as, positive pole is made up of the metallic plate of different geometries, usually positive pole collecting electrode plate 22 is referred to as, negative discharge electrode 21 is preferably and adopts stainless steel helix or prickle wire or acupuncture line, distance between positive pole collecting electrode plate 22 and negative discharge electrode 21 200 millimeters to 300 millimeters, be preferably is 150 millimeters.Dust after removing, finally falls into the ash-unloading hopper 13 of the bottom being arranged on housing 1, avoids reentrainment of dust.
The main distinction of the utility model and prior art is, being provided with between dusty gas inlet port 11 and clean air outlet 12 can at the hoisting type deashing mechanism 3 of vertical direction movement, see Fig. 4, hoisting type deashing mechanism 3 comprises the air inlet 31 arranged towards dusty gas inlet port 11 side and the exhaust outlet 32 arranged towards clean air outlet 12 side, in present embodiment, hoisting type deashing mechanism 3 comprises lift frame 33, lift frame have employed two block frame plates 331, two block frame plates 331 are preferably and adopt anticorrosion frame plate, positive pole collecting electrode plate 22 is clamped in centre by two block frame plates 331, two connecting plates 332 are provided with between the two ends of two block frame plates 331, two connecting plates 332 are provided with opening, and then form air inlet 31 and exhaust outlet 32, positive pole collecting electrode plate 22 adopts the mode be fixedly installed to be arranged on housing 1.
In present embodiment, the inner side (i.e. the inside of hoisting type deashing mechanism 3) of two frame plates 33 is also provided with dust brush sweeper 34, hoisting type deashing mechanism 3 in the process of vertical direction movement for clean on positive pole collecting electrode plate 22 collect dust, simultaneously, present embodiment is also provided with the sparge pipe 37 of horizontally set in the inner side of two frame plates 33 (i.e. the inside of hoisting type deashing mechanism 3), sparge pipe 37 is provided with multiple fountain head 371, the lower end of two block frame plates 33 is provided with dust self-unloading door 35, with after dust out to lower discharge, finally enter in ash-unloading hopper 13.In order to realize carrying out lifting operation to hoisting type deashing mechanism 3, lift frame 33 is provided with leading block 36, and housing 1 is provided with the guide rail 14 coordinated with leading block 36, and in present embodiment, guide rail 14 is arranged on the two ends of positive pole collecting electrode plate 22.
See Fig. 1 and Fig. 2, moving at vertical direction to realize hoisting type deashing mechanism 3, housing 1 also needing arrange the hoisting mechanism 4 moved for promoting hoisting type deashing mechanism 3.In present embodiment, hoisting mechanism 4, comprises the reducing motor 41 being arranged on housing 1 top, and the output shaft of reducing motor 41 is provided with Winding rope 42, the free end of Winding rope 42 connects hoisting type deashing mechanism 3, and the motion track of housing 1 top lift steel cable 42 is provided with fixed pulley 43 and 44.
Certainly, for strengthening the object of whole dedusting effect of electrostatic deduster, hoisting type deashing mechanism 3 is preferably and arranges multiple, and lifting is that deashing mechanism 3 can be arranged in such a way:
1, multiple hoisting type deashing mechanism 3 is arranged continuously along dusty gas inlet port 11 and clean air outlet 12 direction;
2, multiple hoisting type deashing mechanism 3 is arranged side by side between dusty gas inlet port 11 and clean air outlet 12;
3, as present embodiment is done things, multiple hoisting type deashing mechanism 3 side by side direction is arranged in the mode of lining up on dusty gas inlet port 11 and clean air outlet 12 direction and between dusty gas inlet port 11 and clean air outlet 12, namely multiple hoisting type deashing mechanism 3 looks up in the side of overlooking, and the mode in multiple lines and multiple rows is arranged.
Present embodiment, when hoisting type deashing mechanism 3 is multiple, hoisting mechanism 4, comprise the reducing motor 41 being arranged on housing 1 top equally, the output shaft of reducing motor 41 is provided with multiple Winding rope 42, the free end of multiple Winding rope 42 connects multiple hoisting type deashing mechanism 3 respectively, housing 1 top is provided with the first fixed pulley 43, housing 1 top is provided with and multiple hoisting type deashing mechanism 3 multiple second fixed pulley 44 one to one, and multiple Winding rope 42 is successively set on the first fixed pulley 43 and the second fixed pulley 44.Multiple hoisting type deashing mechanism 3 operationally, is preferably and adopts intersection hoisting way to promote.
The purpose of this utility model is to solve problems of the prior art, the upper and lower fixed static of positive pole collecting electrode plate is proposed, water spray deashing device is moved up and down by certain hour according to the grey thickness of knot, realize dust collecting pole plate dust, water spray, while cleaning, completely eliminate on mobile positive pole collecting electrode plate and pile up fouling, keep the clean of positive pole collecting electrode plate surface, be conducive to improving dust-collecting efficiency, no longer produce secondary fly-up.
The utility model moves up and down cleaning owing to adopting, solve owing to adopting advection method to pile up fouling, the drawback that water consumption is large, owing to adopting spraying shower nozzle quantity many, the problem of difficult arrangement, mobile ash-cleaning type water injector structure is simple, reliable and stable work, no longer produce secondary fly-up, and overcome high resistivity dust produce corona electric precipitator performance is affected, can effectively improve ultrafine dust dust-collecting efficiency especially, in same electric field, adopt two to three road modularizations to move deashing water injector interception fine dust, a mobile deashing water injector electric field, there are two to three traditional electric field effect, adopt high energy pulse power supply to make to be less than the charged efficiency of below PM2.5 ultrafine dust to increase substantially, only has the electric cleaner that high energy pulse power supply and mobile water spray deashing device combine, be only the electric cleaner really had except PM2.5 function.Present governance standard is 30mg/m3 to 20mg/m3, and that remainder is directly discharged is PM2.5 mostly, and we should change administration way, to administer PM2.5 for core.
More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1. high energy pulse wet type moves deashing electrostatic precipitator, comprise housing, described housing is provided with dusty gas inlet port and clean air outlet, positive pole collecting electrode plate and negative discharge electrode is provided with in described housing, high-voltage pulse power source is connected with between described positive pole collecting electrode plate and negative discharge electrode, described lower housing portion is provided with ash-unloading hopper, it is characterized in that: being provided with between described dusty gas inlet port and clean air outlet can at the hoisting type deashing mechanism of vertical direction movement, described hoisting type deashing mechanism comprises the air inlet arranged towards dusty gas inlet port side and the exhaust outlet arranged towards clean air outlet side, dust brush sweeper is provided with in described hoisting type deashing mechanism, the sparge pipe of horizontally set is provided with in described hoisting type deashing mechanism, described sparge pipe is provided with multiple fountain head, described hoisting type deashing mechanism lower end is provided with dust self-unloading door, described housing is also provided with the hoisting mechanism for promoting the motion of hoisting type deashing mechanism.
2. high energy pulse wet type according to claim 1 moves deashing electrostatic precipitator, it is characterized in that: described hoisting type deashing mechanism, comprises lift frame, and described lift frame is provided with leading block, and described housing is provided with the guide rail coordinated with leading block.
3. high energy pulse wet type according to claim 2 moves deashing electrostatic precipitator, it is characterized in that: described positive pole collecting electrode plate is fixedly installed, described lift frame comprises the two block frame plates described positive pole collecting electrode plate holder being held in centre, two connecting plates are provided with between the two ends of described two block frame plates, described two connecting plates are provided with opening, and described dust self-unloading door is arranged on two block frame plate lower ends.
4. high energy pulse wet type according to claim 3 moves deashing electrostatic precipitator, it is characterized in that: described lifting frame frame plate is anticorrosion frame plate.
5. high energy pulse wet type according to claim 1 moves deashing electrostatic precipitator, it is characterized in that: described hoisting mechanism, comprise the reducing motor being arranged on described case top, the output shaft of described reducing motor is provided with Winding rope, the free end of described Winding rope connects described hoisting type deashing mechanism, and the motion track of described case top Winding rope is provided with fixed pulley.
6. move deashing electrostatic precipitator according to the arbitrary described high energy pulse wet type of Claims 1-4, it is characterized in that: described hoisting type deashing mechanism is multiple, described multiple hoisting type deashing mechanism is arranged continuously along dusty gas inlet port and clean air outlet direction;
Or described hoisting type deashing mechanism is multiple, described multiple hoisting type deashing mechanism is arranged side by side between dusty gas inlet port and clean air outlet;
Or described hoisting type deashing mechanism is multiple, described multiple hoisting type deashing mechanism side by side direction is arranged in the mode of lining up on dusty gas inlet port and clean air outlet direction and between dusty gas inlet port and clean air outlet.
7. high energy pulse wet type according to claim 6 moves deashing electrostatic precipitator, it is characterized in that: described multiple hoisting type deashing mechanism adopts intersection hoisting way to promote.
8. high energy pulse wet type according to claim 6 moves deashing electrostatic precipitator, it is characterized in that: described hoisting mechanism, comprise the reducing motor being arranged on described case top, the output shaft of described reducing motor is provided with multiple Winding rope, the free end of described multiple Winding rope connects multiple hoisting type deashing mechanism respectively, described case top is provided with the first fixed pulley, described case top is provided with and multiple hoisting type deashing mechanism multiple second fixed pulley one to one, and described multiple Winding rope is successively set on the first fixed pulley and the second fixed pulley.
9. high energy pulse wet type according to claim 1 moves deashing electrostatic precipitator, it is characterized in that: described negative discharge electrode is stainless steel helix or prickle wire or acupuncture line.
10. high energy pulse wet type according to claim 1 moves deashing electrostatic precipitator, it is characterized in that: the distance between positive pole collecting electrode plate and negative discharge electrode 200 millimeters to 300 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420489578.3U CN204276155U (en) | 2014-08-28 | 2014-08-28 | High energy pulse wet type moves deashing electrostatic precipitator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420489578.3U CN204276155U (en) | 2014-08-28 | 2014-08-28 | High energy pulse wet type moves deashing electrostatic precipitator |
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| CN204276155U true CN204276155U (en) | 2015-04-22 |
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| CN201420489578.3U Expired - Fee Related CN204276155U (en) | 2014-08-28 | 2014-08-28 | High energy pulse wet type moves deashing electrostatic precipitator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066289A (en) * | 2015-07-23 | 2015-11-18 | 珠海格力电器股份有限公司 | Air purifying device |
| CN110841805A (en) * | 2019-11-04 | 2020-02-28 | 佛山市云米电器科技有限公司 | Air inlet dust collector and have device's defeated wind equipment |
| CN113877731A (en) * | 2021-09-22 | 2022-01-04 | 安徽金轩科技有限公司 | Method for preventing low-temperature section from blocking and scaling of air preheater of circulating fluidized bed boiler |
-
2014
- 2014-08-28 CN CN201420489578.3U patent/CN204276155U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066289A (en) * | 2015-07-23 | 2015-11-18 | 珠海格力电器股份有限公司 | Air purifying device |
| CN105066289B (en) * | 2015-07-23 | 2019-09-06 | 珠海格力电器股份有限公司 | air purifying device |
| CN110841805A (en) * | 2019-11-04 | 2020-02-28 | 佛山市云米电器科技有限公司 | Air inlet dust collector and have device's defeated wind equipment |
| CN113877731A (en) * | 2021-09-22 | 2022-01-04 | 安徽金轩科技有限公司 | Method for preventing low-temperature section from blocking and scaling of air preheater of circulating fluidized bed boiler |
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Granted publication date: 20150422 Termination date: 20150828 |
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