CN102784720B - External water-distribution movable flexible dust collecting electrode device - Google Patents
External water-distribution movable flexible dust collecting electrode device Download PDFInfo
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- CN102784720B CN102784720B CN201210297074.7A CN201210297074A CN102784720B CN 102784720 B CN102784720 B CN 102784720B CN 201210297074 A CN201210297074 A CN 201210297074A CN 102784720 B CN102784720 B CN 102784720B
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Abstract
The invention discloses an external water-distribution movable flexible dust collecting electrode device which comprises two driving shafts and a flexible dust collecting electrode. The driving shafts are arranged parallelly, the flexible dust collecting electrode is wound on the two driving shafts, a plurality water distribution devices arranged parallelly are arranged between the two driving shafts, the flexible dust collecting electrode is wound around the water distribution devices in an S-shaped crossing manner, the driving shafts are connected with power devices, at least one side of the outer portion of the flexible dust collecting electrode is provided with an electrode, and the water distribution devices are spatially parallel to the electrode. By the aid of the external water-distribution movable flexible dust collecting electrode device, a water film can be uniformly distributed, dust can be automatically and efficiently removed, the problem of corrosion of a metal dust collecting electrode is avoided, wet electrostatic dust collector equipment runs stably, economically, safely and reliably, and fine particles are collected efficiently.
Description
Technical field
The present invention relates to a kind of gas pollution control technology, especially a kind of portable type flexible dust device of outer water distribution being applied to wet cottrell.
Background technology
At present, along with the formal enforcement of " thermal power plant's pollutant emission standard " (GB 13,223 2011) and " ambient air quality " (GB 3,095 2012) formally issue, the emission control for superfine particulate matter formally launches.As the coal-burning power plant of the important emission source of Atmospheric Grains matter, although be all provided with deduster, but that generally adopt is dry electrostatic cleaner (ESP), this deduster dust collecting electrode is run under dry state, not only low for the high resistivity dust particle collection efficiency easily forming inverse corona, and for 10 μm of (particularly 2.5 μm) following subparticles, because minuteness particle is difficult to charged, and electrode vibrators generation reentrainment of dust easily makes the minuteness particle trapped overflow, and causes removal efficiency sharply to decline.The escape of a large amount of fine dust particle causes dust concentration discharge excessive, not only be difficult to satisfied new standard-required, and owing to being mostly enriched in the fine dust particle of less than 10 μm to the poisonous and hazardous major pollutants of human body, the escape of a large amount of fine dust particle has also had a strong impact on the healthy of people, causes huge economic loss.
Adopt wet type dust collecting electrode effectively can overcome the inverse corona problem of dry dust-collecting pole and subparticle reentrainment of dust can be prevented, therefore, it is possible to effectively improve the efficiency that electrostatic precipitation particularly removes fine dust.But the wet type dust collecting electrode of commercial Application is generally all made up of hard materials such as metals at present, due to problems such as surface tension and machined deviations from planarity, flushing water can not be completely uniform on whole dust collecting electrode surface, easily form " channel " on dust collecting electrode surface, the place that such current do not flush easily causes accumulation and the fouling of grit, as dismantled cleaning not in time, dust collecting electrode finally can be caused to lose efficacy; The metal dust collecting electrode of the more perishable common material of the compositions such as the acid mist contained in flue gas, therefore most of metal dust collecting electrode adopts the higher alloy material of cost to make.The problems referred to above have made to adopt the aspect such as electrostatic precipitator stable equipment operation, security reliability, economy of wet type dust collecting electrode to receive and have had a strong impact on.
In addition, Chinese patent ZL200910019222.7 discloses a kind of homogenizing fabric dust collecting electrode surface water film device and technique, and this technique is by the water distributing pore of the Ф 1-Ф 2mm that gathers in dust collecting electrode upper end, and water flows downward under gravity, utilize fiber capillarity, realize the uniform of moisture film.But this process unit is owing to only installing water-distributing device in dust collecting electrode upper end, moisture film can only by upper end to downward-extension, for the dust collecting electrode that area is larger, easily form the excessive and problem that lower end water film thickness is inadequate of dust collecting electrode upper end water film thickness, affect being uniformly distributed of moisture film; In addition, control of dust very fixed and arranged in above-mentioned patent, only by the grey cake layer deashing that realizes dust collecting electrode different from shrinkage ratio dust collecting electrode surface tension, easily causes deashing not thorough, affects follow-up efficiency of dust collection.
Summary of the invention
The object of the invention is for overcoming above-mentioned the deficiencies in the prior art, there is provided a kind of outer water distribution portable type flexible dust device, this device can realize being uniformly distributed with automatical and efficient deashing of moisture film and avoid the etching problem of metal dust collecting electrode, ensure that wet cottrell equipment is stable, economical, run safely and reliably, realize the efficient trapping of fine particle.
For achieving the above object, the present invention adopts following technical proposals:
The portable type flexible dust device of a kind of outer water distribution, comprise two driving shafts and type flexible dust be arranged in parallel, described type flexible dust is around on two driving shafts, some water-distributing devices be arranged in parallel are provided with between two driving shafts, the S-shaped intersection of type flexible dust walks around some water-distributing devices, driving shaft is connected with power set, described type flexible dust outside is at least provided with electrode in side, described water-distributing device and electrode spatially be arranged in parallel, and described type flexible dust is along airflow direction front-rear reciprocation movement.。
Described both ends of main drive shaft is equipped with stopping means.
Described stopping means is limited block or spacing preiection.
The plate body that described type flexible dust is made up of flexible fabric.
Described water-distributing device is the pipe with aperture or groove.
Aperture on described pipe or groove spray angle have close to the tangential angle in point of contact, normal angles two kinds.
The portable type flexible dust device of a kind of outer water distribution, comprise driving shaft, driven shaft and type flexible dust, described type flexible dust is around on driving shaft and driven shaft, some water-distributing devices be arranged in parallel are provided with between driving shaft and driven shaft, the S-shaped intersection of type flexible dust walks around some water-distributing devices, driving shaft is connected with power set, described type flexible dust outside is at least provided with electrode in side, the spatially square crossing of described water-distributing device and electrode is arranged, and described type flexible dust adopts uprush direction to pump.
At least one end of described driving shaft and driven shaft is provided with stopping means.
Described stopping means is limited block or spacing preiection.
The plate body that described type flexible dust is made up of flexible fabric.
Described water-distributing device is the pipe with aperture or groove.
Aperture on described pipe or groove spray angle have close to the tangential angle in point of contact, normal angles two kinds.
The present invention includes movable flexible dust collecting electrode, water-distributing device and supporting stopping means thereof, its dust collecting electrode detours in water-distributing device, water-distributing device adopts the steel pipe with certain angle aperture or groove, from dust collecting electrode, carry out water distribution, and the double supporting construction doing type flexible dust.
In the present invention, dust collecting electrode adopts and to pump mode along airflow direction front-rear reciprocation movement mode or perpendicular to airflow direction, is sprayed water, realize stable and uniform water distribution and the deashing of dust collecting electrode by water-distributing device.When adopting front-rear reciprocation movement, two driving shaft velocities of rotation are all adjustable and rotation direction and speed consistent.When employing pumps, upper end is driving shaft lower end is driven shaft, and driving shaft velocity of rotation is adjustable.In above-mentioned two kinds of motion modes, both ends of main drive shaft is all provided with stopping means, guarantees that dust collecting electrode does not occur sideslip problem in motion process.
In the present invention, overlap water-distributing device side by side between two power transmission shafts, type flexible dust is S-type to detour on fixing water distributor more, is realized stable and uniform water distribution and the deashing of dust collecting electrode by the reciprocating motion of dust collecting electrode and the regularity water spray of water-distributing device; In the present invention, rush except deashing except by water, the friction of dust collecting electrode and fixing water-distributing device in reciprocatory movement also can be utilized to realize the automatic ash removing of dust collecting electrode; In the present invention, water-distributing device hydraulic pressure used, the water yield and injection interval can regulate as required;
During application, the present invention's many covers parallel combinations can be adopted as required to be together positioned in wet cottrell use, the distance between dust collecting electrode is between 200-800mm; Often in cover, in the flexible dust collect plant of water spray, dust collecting electrode is all as a whole, and interior water injector can install many covers as required.
The invention has the beneficial effects as follows, the present invention can realize being uniformly distributed with automatical and efficient deashing of moisture film and avoid the etching problem of metal dust collecting electrode, ensure that wet cottrell equipment is stable, economical, run safely and reliably, realize the efficient trapping of fine particle.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 structural representation;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the embodiment of the present invention 2 structural representation;
Fig. 4 is the left view of Fig. 3;
Wherein 1. driving shafts, 2. water-distributing device, 3. electrode, 4. type flexible dust, 5. stopping means, 6. driven shaft.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1: as shown in Figure 1, 2, the portable type flexible dust device of outer water distribution, comprise two driving shafts be arranged in parallel 1 and type flexible dust 4, described type flexible dust 4 is around on two driving shafts 1, be provided with some water-distributing devices 2 be arranged in parallel between two driving shafts 1, the S-shaped intersection of type flexible dust 4 walks around some water-distributing devices 2, and driving shaft 1 is connected with power set, the described outside side of type flexible dust 4 is provided with electrode, and described water-distributing device 2 is be arrangeding in parallel with electrode 3.Driving shaft 1 two ends are equipped with stopping means 5.Spacingly fill 5 and be set to limited block or spacing preiection.The plate body that type flexible dust 4 is made up of flexible fabric.Water-distributing device 2 is the steel pipe with aperture or groove.Aperture on steel pipe or groove spray angle have close to the tangential angle in point of contact, normal angles two kinds.
Along with voltage raises, the electric discharge of electrode 3 end makes air ionization, produces a large amount of anion; After dust granules in flue gas is combined with anion, move to type flexible dust 2.Be furnished with the dust granules of type flexible dust capture movement to dust collecting electrode of uniform water film, due to the viscous force of water, can not there is secondary back-mixing problem in particle particularly subparticle, realize the efficient trapping of subparticle; Type flexible dust is seesawing in process along airflow direction, water-distributing device is sprayed water from, normal angles tangential close to point of contact to dust collecting electrode, realizes continuous uniform distribution and the deashing of moisture film, in addition, also by the friction of dust collecting electrode and water-distributing device 2, the automatic ash removing of dust collecting electrode is realized.
Embodiment 2: as shown in Figure 3,4, the portable type flexible dust device of outer water distribution, comprise driving shaft 1, driven shaft 6 and type flexible dust 4, described type flexible dust 4 is around on driving shaft 1 and driven shaft 6, some water-distributing devices 2 be arranged in parallel are provided with between driving shaft 1 and driven shaft 6, the S-shaped intersection of type flexible dust 4 walks around some water-distributing devices 2, driving shaft 1 is connected with power set, the described outside side of type flexible dust 4 is provided with electrode, and described water-distributing device 2 is arranged with electrode 3 spatially square crossing.The two ends of driving shaft 1 and driven shaft 6 are equipped with stopping means 5.Stopping means 5 is limited block or spacing preiection.The plate body that type flexible dust 4 is made up of flexible fabric.Water-distributing device 2 is the pipe with aperture or groove.On pipe, aperture or groove spray angle have close to the tangential angle in point of contact, normal angles two kinds.
Now type flexible dust is moving up and down in process perpendicular to airflow direction, and water-distributing device is sprayed water from, normal angles tangential close to point of contact to dust collecting electrode, realizes continuous uniform distribution and the deashing of moisture film.For ensureing that dust collecting electrode to move up and down in process not sideslip, turning cylinder two ends are all provided with stopping means.Dust collecting electrode 2, by water spray deashing, also by the friction of dust collecting electrode and water-distributing device 2, realizes the automatic ash removing of dust collecting electrode.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (5)
1. the portable type flexible dust device of outer water distribution, it is characterized in that, comprise two driving shafts and type flexible dust be arranged in parallel, the plate body that described type flexible dust is made up of flexible fabric, described type flexible dust is around on two driving shafts, and described both ends of main drive shaft is equipped with stopping means; Some water-distributing devices be arranged in parallel are provided with between two driving shafts, the S-shaped intersection of type flexible dust walks around some water-distributing devices, driving shaft is connected with power set, described type flexible dust outside is at least provided with electrode in side, described water-distributing device and electrode spatially be arranged in parallel, and described type flexible dust is along airflow direction front-rear reciprocation movement.
2. the portable type flexible dust device of outer water distribution, it is characterized in that, comprise driving shaft, driven shaft and type flexible dust, the plate body that described type flexible dust is made up of flexible fabric, described type flexible dust is around on driving shaft and driven shaft, and at least one end of described driving shaft and driven shaft is provided with stopping means; Some water-distributing devices be arranged in parallel are provided with between driving shaft and driven shaft, the S-shaped intersection of type flexible dust walks around some water-distributing devices, driving shaft is connected with power set, described type flexible dust outside is at least provided with electrode in side, the spatially square crossing of described water-distributing device and electrode is arranged, and described type flexible dust adopts uprush direction to pump.
3. the portable type flexible dust device of as claimed in claim 1 or 2 outer water distribution, it is characterized in that, described stopping means is limited block or spacing preiection.
4. the portable type flexible dust device of as claimed in claim 1 or 2 outer water distribution, it is characterized in that, described water-distributing device is the pipe with aperture or groove.
5. the portable type flexible dust device of as claimed in claim 4 outer water distribution, it is characterized in that, the aperture on described pipe or the spray angle of groove have close to the tangential angle in point of contact, normal angles two kinds.
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| CN201210297074.7A CN102784720B (en) | 2012-08-20 | 2012-08-20 | External water-distribution movable flexible dust collecting electrode device |
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| CN201210297074.7A CN102784720B (en) | 2012-08-20 | 2012-08-20 | External water-distribution movable flexible dust collecting electrode device |
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| CN107282309B (en) * | 2017-08-14 | 2019-05-24 | 国家能源投资集团有限责任公司 | Dust collecting pole plate optimizes structure, anode system and flexible wet electrical dust precipitator |
| CN107694757A (en) * | 2017-10-31 | 2018-02-16 | 国家能源投资集团有限责任公司 | A kind of pocket-type water distribution rinse-system and method for being used to clean pole plate |
| CN111330736B (en) * | 2020-03-04 | 2021-01-26 | 山东大学 | Flexible net dust collection device, dust collection system and dust collection method |
| CN113102108A (en) * | 2021-03-12 | 2021-07-13 | 宁波方太厨具有限公司 | Light high-voltage electrostatic purification device and range hood |
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| CN202803407U (en) * | 2012-08-20 | 2013-03-20 | 山东大学 | External water distribution movable type flexible dust collecting electrode device |
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| JP2009220066A (en) * | 2008-03-18 | 2009-10-01 | Hitachi Plant Technologies Ltd | Wet type electric dust collector and method for operating wet type electric dust collector |
| CN201308863Y (en) * | 2008-11-05 | 2009-09-16 | 中冶京诚工程技术有限公司 | Electrode plate washing device |
| TWI359048B (en) * | 2009-09-10 | 2012-03-01 | Univ Nat Chiao Tung | Wet electrostatic precipitator with pulse jet clea |
| CN101670313B (en) * | 2009-10-09 | 2012-04-25 | 山东大学 | Device and process for homogenizing fabric dust collecting electrode surface water film |
| CN101816975A (en) * | 2010-05-17 | 2010-09-01 | 山东电力研究院 | Wet-dry mixing electric dust remover |
| CN201711219U (en) * | 2010-07-05 | 2011-01-19 | 山东山大能源环境有限公司 | Semi-moist type electrostatic dust collector |
| CN102327813A (en) * | 2010-07-12 | 2012-01-25 | 江苏阜升环保集团有限公司 | Multi-layer rotating curtain type high-voltage electrostatic wet process dust collection device |
| CN202343325U (en) * | 2011-11-24 | 2012-07-25 | 杭州天明环保工程有限公司 | Microplate electrostatic dust collector |
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