CN205462727U - Wet -type electrostatic precipitator with and hydrophobic conductive electrode thereof - Google Patents
Wet -type electrostatic precipitator with and hydrophobic conductive electrode thereof Download PDFInfo
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- CN205462727U CN205462727U CN201620014717.6U CN201620014717U CN205462727U CN 205462727 U CN205462727 U CN 205462727U CN 201620014717 U CN201620014717 U CN 201620014717U CN 205462727 U CN205462727 U CN 205462727U
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- wet electrical
- dust precipitator
- electrical dust
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Abstract
The utility model discloses a wet -type electrostatic precipitator with and hydrophobic conductive electrode thereof, negative pole in being pipy positive pole and arranging the positive pole in, the surface of its positive pole internal surface and/or negative pole has the one deck hydrophobic layer. The utility model discloses reduced the adsorption rate of dust on the electrode, it is more effective that messenger's wet -type electrostatic precipitator goes up driving of dust, has improved the dust collection efficiency, has practiced thrift simultaneously and sprayed the water yield.
Description
Technical field
This utility model relates to wet electrical dust precipitator electrode, particularly to the hydrophobic conductive electrode of a kind of wet electrical dust precipitator.
Background technology
The operation principle of wet electrical dust precipitator is divided into four-stage, is corona discharge, dust and water fog charge, Charged and water smoke collection, pole plate deashing respectively.First pass through corona discharge, high-voltage DC power supply forms non-homogeneous high voltage electric field between the two poles of the earth, corona zone is produced around corona wire, and substantial amounts of anion (electronics), enter the powder dust particle of wet electricity, anion that water droplet microgranule produces with corona discharge collides and charged, charged grit and water droplet microgranule move to anode tube under the effect of electric field force, trapped by anode tube due to the principle of " there is a natural attraction between the sexes ", dust and water droplet combine in anode tube, and owing to flowing into bottom water leg under its deadweight and the effect of spray deashing.
The electrode of wet electrical dust precipitator is as the vitals discharging, gathering dust, and its Anodic in a tubular form, is used for gathering dust, and negative electrode is placed in anode, is used for discharging, and the cleannes of electrode concern the dust removing effects of wet electrical dust precipitator, and therefore the cleaning of holding electrode is most important.Electrode cleaning is relevant with spray system, smoke property and electrode length, the electrode length of wet electrical dust precipitator is typically limited by factors, the air inlet character of wet electrical dust precipitator depends on again the headend equipment of wet electrical dust precipitator, so for wet electrical dust precipitator itself, the performance of spray system determines the clean-up performance of electrode to a great extent.
According to above-mentioned, the performance of spray system has been largely fixed the cleannes of electrode, thus affects the dust removing effects of wet electrical dust precipitator.But the moisture film formed on electrode due to current wet electrical dust precipitator spray mode is uneven, the factors such as the geometric imperfections (uneven) adding upper electrode surface, during moisture film flowing, owing to the surface tension of water produces channel effect, in the course of time, can produce dry spot in cathode line, dry spot is grown up and is caused cathode line fouling, has a strong impact on cathod system corona discharge；The dust additionally collected is after spray washes away, still there is partial adsorbates in anode tube so that moisture film flowing is more uneven, affects gathering dust and ash-removal effect of anode, currently in order to increase ash-removal effect, many employings increase water spray and improve the moisture film scouring force to dust with hydraulic pressure.
In consideration of it, the present inventor develops the hydrophobic conductive electrode of a kind of wet electrical dust precipitator for this, effectively solving the problems referred to above, this case thus produces.
Utility model content
The hydrophobic conductive electrode of a kind of wet electrical dust precipitator that this utility model provides and wet electrical dust precipitator, decrease dust adsorption rate on electrode, make the removing of dust on wet electrical dust precipitator more efficient, improve efficiency of dust collection, saved water spray simultaneously.
To achieve these goals, the technical solution of the utility model is as follows:
The hydrophobic conductive electrode of a kind of wet electrical dust precipitator, including anode in a tubular form and the negative electrode being placed in anode, the inner surface of its anode and/or the outer surface of negative electrode have one layer of hydrophobic layer.
Described hydrophobic layer uses corrosion-resistant ultra-hydrophobic conductive material to make.
Described hydrophobic layer is film of poly pyrrole.
Described hydrophobic layer thickness is 2-6mm.
Described anode is made up of hydrophobic layer, conductive layer, anticorrosive coat and structure sheaf from the inner surface to outer surface, and described negative electrode is made up of structure sheaf, anticorrosive coat, conductive layer and hydrophobic layer from inside to outside.
Described conductive layer is made up of carbon fiber surface felt and grid cloth, and anticorrosive coat is made up of glass chopped mat, and structure sheaf is made up of glass chopped mat and glass fiber reticular cloth.
Described anode shape is regular hexagon.
Described cathode shape is zigzag.
A kind of wet electrical dust precipitator, including hydrophobic conductive electrode as above.
After using such scheme, the electrode surface of wet electrical dust precipitator is improved by this utility model, by increasing by one layer of hydrophobic layer on the surface of electrode, electrode surface is made to form " lotus leaf effect ", dust is difficult to adsorb at electrode surface with the mixture of water, decrease dust adsorption rate on electrode, make the removing of dust on wet electrical dust precipitator more efficient, substantially increase the self-cleaning ability of electrode, also effectively prevent electrode surface fouling, and only need a small amount of water to be washed away by dust, under good dust removing effects, the spray flux of water can also be reduced, effect is abnormal notable.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present embodiment anode tube transverse section；
Fig. 2 is the schematic diagram of the present embodiment anode tube vertical section；
Fig. 3 is the present embodiment negative electrode schematic cross-sectional view；
Fig. 4 is the present embodiment negative electrode appearance schematic diagram；
Fig. 5 be the multiple anode tube of the present embodiment integrated after schematic diagram；
Fig. 6 is the Comparative result figure of experiment one；
Fig. 7 is the Comparative result figure of experiment two.
Label declaration
Anode 10, anode hydrophobic layer 1a, anode conductive layer 2a, anode anticorrosive coat 3a, anode construction layer 4a, negative electrode 20, tooth 21, cathode hydrophobic layer 1b, cathode conductive layer 2b, cathodic protection layer 3b, cathode construction layer 4b.
Detailed description of the invention
In order to the technical solution of the utility model is explained further, below by specific embodiment, the utility model is elaborated.
As Figure 1-4, being the hydrophobic conductive electrode of a kind of wet electrical dust precipitator that this utility model discloses, including anode 10 in a tubular form and the negative electrode 20 being placed in anode 10, the outer surface of its anode 10 inner surface and/or negative electrode 20 has one layer of hydrophobic layer.Owing to typically containing corrosive material in flue gas, therefore this hydrophobic layer uses corrosion-resistant ultra-hydrophobic conductive material to make, such as, and film of poly pyrrole.
The preparation of electrode surface material film of poly pyrrole typically can be prepared by electrochemical method by pyrrole monomer.Electrochemical polymerization is under electric field action, use electrode potential as the energy required for polyreaction, after reaction after a while at electrode surface precipitation one layer of polymeric thus obtain conjugated polymer film.The high-polymer membrane with various different-shape and performance can be prepared by factors such as control the polymerizing condition such as concentration of Arrays Aluminum Films in Acid Solution, pyrrole monomer, solvent, polymerization voltage, size of current and temperature.The film of poly pyrrole that thickness is 2-6mm of electrode surface prepared by the method has extraordinary ultra-hydrophobicity, thus is greatly promoted the self-cleaning of electrode and antiscale ability.
As shown in Figure 1-2, the anode 10 of electrode is constituted by four layers from the inner surface to outer surface, it is respectively as follows: the anode hydrophobic layer 1a that film of poly pyrrole is made, the anode conductive layer 2a that carbon fiber surface felt and grid cloth are made, the anode anticorrosive coat 3a that glass chopped mat is made, and the anode construction layer 4a that glass chopped mat and glass fiber reticular cloth are made.Wherein hydrophobic layer 1a plays the adsorbing powder dust rate reduced after washing away; save the effect of water spray; also be simultaneously charged after adsorbing powder dust platform; anode conductive layer 2a is the conductive component making charged rear adsorbing powder dust; the effect of anode anticorrosive coat 3a is not primarily to the anode construction layer 4a of protection anode 10 is corroded, and anode construction layer 4a acts primarily as the supporting role to anode 10.
As shown in Figure 3-4, the negative electrode 20 of electrode from heart portion to constituted by four layers, it is respectively as follows: glass chopped mat and cathode construction layer 4b that glass fiber reticular cloth is made, the cathodic protection layer 3b that glass chopped mat is made, the cathode conductive layer 2b that carbon fiber surface felt and grid cloth are made, and the cathode hydrophobic layer 1b that film of poly pyrrole is made.The same anode tube of Main Function of each layer.
In conjunction with shown in Fig. 1 and Fig. 5, anode 10 is shaped as regular hexagon, in order to the anode 10 that set is the most in minimum space.As it is shown on figure 3, negative electrode 20 is shaped as the zigzag beneficially discharged, by surface with some sawtooth 21 discharge.
Hydrophobic layer is used for energy field, the most not yet finds to be applied in dust arrester.The present embodiment increases by one layer of hydrophobic layer (1a by the working surface at electrode, 1b), with this, electrode surface of wet electrical dust precipitator is improved, when making the dust on current scour electrode, " lotus leaf effect " is formed at electrode surface, dust is made to be difficult to adsorb at electrode surface with the mixture of water, decrease dust adsorption rate on electrode, substantially increase the self-cleaning ability of electrode, make the removing of dust on wet electrical dust precipitator more efficient, still prevent electrode surface fouling, under the dust Gravitative Loads with water droplet microgranule, a small amount of water is only needed to be washed away by dust, improve efficiency of dust collection simultaneously.Particularly in the case of have employed the super hydrophobic material film of poly pyrrole with decay resistance, not only further increasing self-cleaning ability and the antiscale ability of electrode, also add service life, decrease maintenance cost, effect is abnormal notable.
The contrast experiment done when time below by there is 2-6mm film of poly pyrrole thickness after improvement and not improving and not there is film of poly pyrrole.
Test one, as shown in Figure 6, when being 3000Nm/h for wet electrical dust precipitator import exhaust gas volumn, measures wet electrical dust precipitator entrance dust conceltration before and after improving, outlet dust content, flue-gas temperature, operating pressure, water spray, the data recorded.
Test two, during as it is shown in fig. 7, be 30000Nm/h for wet electrical dust precipitator import exhaust gas volumn, measures wet electrical dust precipitator entrance dust conceltration before and after improving, outlet dust content, flue-gas temperature, operating pressure, water spray, the data recorded.
By above-mentioned test, after electrode is improved by the present embodiment, efficiency of dust collection can improve 2%-6%, saves the water yield about 25%.
These are only preferred embodiment of the present utility model, the not restriction to protection domain of the present utility model.All equivalent variations done according to the mentality of designing of this case, each fall within the protection domain of this case.
Claims (10)
1. a hydrophobic conductive electrode for wet electrical dust precipitator, including anode in a tubular form and the negative electrode being placed in anode, it is characterised in that: the outer surface of its anode inner surface and/or negative electrode has one layer of hydrophobic layer.
The hydrophobic conductive electrode of a kind of wet electrical dust precipitator the most as claimed in claim 1, it is characterised in that: described hydrophobic layer uses corrosion-resistant ultra-hydrophobic conductive material to make.
The hydrophobic conductive electrode of a kind of wet electrical dust precipitator the most as claimed in claim 1, it is characterised in that: described hydrophobic layer is film of poly pyrrole.
The hydrophobic conductive electrode of a kind of wet electrical dust precipitator the most as claimed in claim 1, it is characterised in that: described hydrophobic layer thickness is 2-6mm.
The hydrophobic conductive electrode of a kind of wet electrical dust precipitator the most as claimed in claim 1, it is characterised in that: described anode is made up of hydrophobic layer, conductive layer, anticorrosive coat and structure sheaf from the inner surface to outer surface.
The hydrophobic conductive electrode of a kind of wet electrical dust precipitator the most as claimed in claim 1, it is characterised in that: described negative electrode is made up of structure sheaf, anticorrosive coat, conductive layer and hydrophobic layer from inside to outside.
7. the hydrophobic conductive electrode of a kind of wet electrical dust precipitator as described in claim 5 or 6, it is characterized in that: described conductive layer is made up of carbon fiber surface felt and grid cloth, structure sheaf is made up of glass chopped mat and glass fiber reticular cloth, and described anticorrosive coat is made up of glass chopped mat.
The hydrophobic conductive electrode of a kind of wet electrical dust precipitator the most as claimed in claim 1, it is characterised in that: described anode shape is regular hexagon.
The hydrophobic conductive electrode of a kind of wet electrical dust precipitator the most as claimed in claim 1, it is characterised in that: described cathode shape is zigzag.
10. a wet electrical dust precipitator, it is characterised in that: include the hydrophobic conductive electrode as described in claim 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620014717.6U CN205462727U (en) | 2016-01-08 | 2016-01-08 | Wet -type electrostatic precipitator with and hydrophobic conductive electrode thereof |
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| CN201620014717.6U CN205462727U (en) | 2016-01-08 | 2016-01-08 | Wet -type electrostatic precipitator with and hydrophobic conductive electrode thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478235A (en) * | 2016-01-08 | 2016-04-13 | 福建紫荆环境工程技术有限公司 | Wet electric dust precipitator and water repelling and electric conducting electrode thereof |
-
2016
- 2016-01-08 CN CN201620014717.6U patent/CN205462727U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478235A (en) * | 2016-01-08 | 2016-04-13 | 福建紫荆环境工程技术有限公司 | Wet electric dust precipitator and water repelling and electric conducting electrode thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Huamin Inventor after: Huang Guilin Inventor after: Zhong Yonghui Inventor after: Teng Hongwei Inventor before: Wang Huaming Inventor before: Huang Guilin Inventor before: Zhong Yonghui Inventor before: Teng Hongwei |
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| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20190108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |