CN204746597U - Wet electrostatic precipitator negative pole and positive pole configuration structure - Google Patents
Wet electrostatic precipitator negative pole and positive pole configuration structure Download PDFInfo
- Publication number
- CN204746597U CN204746597U CN201520472484.XU CN201520472484U CN204746597U CN 204746597 U CN204746597 U CN 204746597U CN 201520472484 U CN201520472484 U CN 201520472484U CN 204746597 U CN204746597 U CN 204746597U
- Authority
- CN
- China
- Prior art keywords
- negative electrode
- anode
- configuration structure
- negative pole
- spray point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000012719 wet electrostatic precipitator Substances 0.000 title abstract 3
- 239000007921 spray Substances 0.000 claims description 34
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229920006387 Vinylite Polymers 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 10
- 239000003546 flue gas Substances 0.000 abstract description 10
- 229910052602 gypsum Inorganic materials 0.000 abstract description 6
- 239000010440 gypsum Substances 0.000 abstract description 6
- 230000002349 favourable effect Effects 0.000 abstract 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 1
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 1
- 240000002853 Nelumbo nucifera Species 0.000 abstract 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 abstract 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 abstract 1
- 244000082204 Phyllostachys viridis Species 0.000 abstract 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 1
- 230000006978 adaptation Effects 0.000 abstract 1
- 239000011425 bamboo Substances 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 description 10
- 231100000719 pollutant Toxicity 0.000 description 10
- 230000005684 electric field Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- NBGBEUITCPENLJ-UHFFFAOYSA-N Bunazosin hydrochloride Chemical compound Cl.C1CN(C(=O)CCC)CCCN1C1=NC(N)=C(C=C(OC)C(OC)=C2)C2=N1 NBGBEUITCPENLJ-UHFFFAOYSA-N 0.000 description 1
- 241001149724 Cololabis adocetus Species 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Electrostatic Separation (AREA)
Abstract
The utility model discloses a wet electrostatic precipitator negative pole and positive pole configuration structure, including negative pole and positive pole, the negative pole is installed on cathode frame, and the positive pole is installed on the anode superstructure, the positive pole is the regular hexagon tube -shape, the negative pole of negative pole for having the discharge needle, discharge needle layering on the negative pole is arranged, and every layer of equipartition is three, and an error angle is 60 between the adjacent layer, and the interlamellar spacing is 25 -100mm, the discharge needle is connected perpendicularly in the negative pole, and every discharge needle all points to the section of thick bamboo angle of the positive hexagon of positive pole. The utility model discloses be favorable to even and high -efficient entrapment electron of positive pole and lotus electropollution thing, be favorable to the bloom of negative pole low -voltage, corona stably, can set up the cathodic discharge position according to the positive pole form, can set up cathodic discharge needle length and the exoelectric power of angular adjustment, reliable and simple according to the ambient condition to dust and gypsum that needle point shape point of discharge does not exist in the wet flue gas that bonds restrain exoelectric problem, this negative pole - positive pole configuration structure ability and wet electrostatic precipitator looks adaptation is used extensively.
Description
Technical field
The utility model relates to a kind of configuration structure of K-A of fossil-fired unit wet scrubber, particularly the pole configuration structure of a kind of hexagon cartridge type anode and six saury bone line the moon.
Background technology
In September, 2014, National Development and Reform Committee, Chinese Ministry of Environmental Protection and Bureau of Energy issue " coal electricity energy-saving and emission-reduction upgrading and transformation action plan (2014-2020) ", propose east, in, western newly-built coal unit dust emission reaches 5mg/Nm at the year two thousand twenty
3gas turbine group discharge restriction requirement, the fossil-fired unit of current eastern region has performed the standard of this minimum discharge at present.The pollutant such as a small amount of fine solid particle, gypsum, acid mist and heavy metal in efficient removal wet flue gas coordinated by wet cottrell after being installed on fired power generating unit WFGD system, be the optimal selection realizing ultra-clean discharge.
The principle that wet cottrell removes pollutant is after the negative high voltage of the access 30-60KV of pole plate and polar curve, a large amount of avalanche ionization of the air near cathodic discharge needle point, pollutant saturated charged after drive under electric field force effect and proceed to anode and be captured.Negative electrode and positive electrode is the core component of wet cottrell, and the pole distribution structure of both compositions determines discharge performance and the electric-field intensity of high voltage electric field, determines the removal efficiency of wet cottrell in other words.
The existing anode form of wet cottrell has Horizontal flat andante shape, vertical quadrangle etc., and existing cathodic discharge form has that long line is pointed, sawtooth is pointed and the pointed line of prickle etc.The deficiency that prior art exists is: (1) horizontal dull and stereotyped anode form because structural strength restriction adopts expensive stainless steel alloy material, and in highly acid wet flue gas seriously corroded; The corrosion resistant flexible cloth of the many employings of vertical quadrangle, as anode, is rocked obviously under the high wind speed condition of more than 3m/s, and electric pulse field parameter fluctuation is very large, and only there is an overhaul life in the life-span of flexible cloth.All there is gather dust " blind area " of larger proportion in the arrangement form of these two kinds of anodes, evenly can not trap the electronics of emission of cathode and the defect of charged pollutant.(2) the sharp degree (i.e. curvature) that long line is pointed and sawtooth is pointed is little, strength of discharge is difficult to meet the saturated charged requirement of Thermal Power Generation Industry wet flue gas dust, and the pointed sharp degree of prickle is large and the cusp that discharges is many, easily there is the excessive phenomenon of burning pole plate of corona in local, the discharge tip of these three kinds of negative electrodes has the fine dust in adhesion flue gas and gypsum to suppress the phenomenon of electric discharge.(3) the configuration structure cathodic discharge intensity of existing anode-cathode and diversity do not mate with wet flue gas condition, the space non-uniform electric field low strength of anode and negative electrode.Above deficiency seriously reduces the efficiency that wet cottrell removes pollutant.
Summary of the invention
For above deficiency, the purpose of this utility model is to provide the efficient negative electrode and positive electrode configuration structure of a kind of wet cottrell.
The purpose of this utility model is achieved through the following technical solutions:
A kind of wet cottrell negative electrode and positive electrode configuration structure, comprise anode 1 and negative electrode, negative electrode is arranged on cathode frame, and anode is arranged on anode superstructure, and described anode is regular hexagon tubular; Described negative electrode is the negative electrode 2 with spray point 3, and spray point is in the arrangement of negative electrode higher slice, and every layer uniform three, between adjacent layer, error angle is 60 °, and interlamellar spacing is 25-100mm; Described spray point is vertically connected at negative electrode, and every root spray point all points to the cylinder angle of the positive hexagon of anode.
Further design of the present utility model is:
The length of spray point is 8-25mm, and diameter is 2-4mm, and needle point 4 angle b is 50-140 °, adopts cold heading technique to make.The cross section inscribed circle diameter of anode is 280-420mm, and anode tube length is 3-6m; Negative electrode is the thin-wall circular steel pipe of diameter 12-25mm, cathode length 4-7m.Negative electrode adopts with the type of attachment of spray point and welds.Anode skeleton is the electro-conductive glass steel cylinder of vinylite and glass fibre mold pressing, and the conductive carbon powder of admixture mass ratio 5-10% in resin, anode inner surface lining pastes highdensity conductive carbon felt, can ensure the electric conductivity of anode like this.
The material of negative electrode and spray point is duplex stainless steel 2205/2507 or industrial pure titanium TA2.
compared with prior art, remarkable advantage of the present utility model is:
1, hexagon anode canister cross section of the present utility model is close to circular, is conducive to all even efficient trap electrons of anode and charged pollutant.
2, cathode construction form discharge inception voltage of the present utility model is low, corona stabilization, discharge position can carry out specific aim setting according to anode form, cathodic discharge power can be adjusted by pin length and Angulation changes, simple, and needle point shape point of discharge do not exist bonding wet flue gas in dust and gypsum suppress electric discharge problem.
3, the good corrosion resistance of material under highly acid wet flue gas condition of anode of the present utility model and negative electrode, long service life.
4, anode-cathode configuration structure of the present utility model in wet-esp under high wind speed operating mode the amplitude of oscillation little, stability is high, can be suitable with wet cottrell, is widely used.
Accompanying drawing explanation
Fig. 1 is the structural representation of negative electrode and positive electrode configuration structure of the present utility model;
Fig. 2 is the A-A direction view of Fig. 1;
Fig. 3 is the structural representation of spray point;
Fig. 4 is the B-B direction view of 2;
Fig. 5 is the C-C direction view of 2;
Fig. 6 is the elevational schematic view of anode of the present utility model.
Mark in figure:
1, anode, 2, negative electrode (also can be described as cathode line), 3, spray point, 4, needle point.
Detailed description of the invention
embodiment one:
As shown in figs 1 to 6, the utility model wet cottrell negative electrode and positive electrode configuration structure, comprise negative electrode 2 and anode 1, negative electrode is arranged on cathode frame, and anode 1 is arranged on anode superstructure, and described anode 1 is regular hexagon tubular; Described negative electrode is the negative electrode 2 with spray point 3, and spray point 3 is in the arrangement of negative electrode 2 higher slice, and every layer uniform three, between adjacent layer, error angle is 60 °, and interlamellar spacing is 50mm(25-100mm); Described spray point 3 is vertically connected at negative electrode 2, every root spray point 3 all points to the cylinder angle of the positive hexagon of anode 1, be similar to six pin negative electrodes 2 of fishbone and the pole distribution structure of hexagon tubular anode 1 like this, improve space electrical field between the two and anode surface evenly can trap the charged pollutant of electric field space.
The length of spray point 3 is 15mm(8-25mm), diameter is 3mm(2-4mm), needle point 4 angle b is 90 ° (50-140 °), employing cold heading technique is made, in Practical Project because of design condition difference need to increase electric-field intensity and discharge current time, polar curve spray point 3 of the present utility model can be realized by the adjustment length of spray point 3 and needle point 4 angle.
The cross section inscribed circle diameter of anode 1 is 350mm(280-420mm), anode 1 tube length is 4m(3-6m); Negative electrode is diameter 18mm(12-25mm) thin-wall circular steel pipe, negative electrode 2 length 4.3m(4-7m).Negative electrode 2 adopts the form of welding to be connected with spray point 3, and the material of negative electrode 2 and spray point 3 is duplex stainless steel 2205/2507 or industrial pure titanium TA2.
Anode 1 skeleton is the electro-conductive glass steel cylinder of vinylite and glass fibre mold pressing, the conductive carbon powder of admixture mass ratio 8% in resin, and anode 1 inner surface lining pastes highdensity conductive carbon felt, can ensure the electric conductivity of anode 1 like this.
Also the course of work of the present utility model is further illustrated by reference to the accompanying drawings below by embodiment:
1, by 1, the utility model anode and negative electrode 2 according to the assembling of Fig. 1 arrangement form, negative electrode to need to be supported on porcelain high voltage insulator and is connected with high voltage source;
2, start power supply, the needle point 4 of spray point 3 produces corona, and the pollutant such as dust, gypsum, the droplet moment flowing through wet flue gas in 1, anode is saturated charged, and electric field force orders about it and migrates on anode 1 barrel, realizes pollutant removing object.
embodiment two:
A certain coastal region in east China 2*1000MW fossil-fired unit increases wet cottrell after wet FGD system, removes the pollutants such as fine solid particle, gypsum and the acid mist carried secretly in flue gas.This unit coal-burning condition is better, wet except Inlet dust content≤20mg/Nm
3, droplet concentration is less than≤40mg/Nm
3, require wet dust content≤5mg/Nm except outlet
3, droplet concentration is less than≤20mg/Nm
3.This project Anodic 1 adopts anode 1 tread assembly of inscribed circle φ 300mm, tube length 5m, and negative electrode adopts the TA2 material line of φ 15mm, the long 6.1m of negative electrode 2; On it, the length of spray point 3 is 10mm, diameter 3mm, needle point 4 angle 90 °, and the interlamellar spacing of spray point 3 is 60mm.The wet dust content 3-4mg/Nm except outlet of actual measurement
3, droplet concentration 16-18mg/Nm
3.
embodiment three:
A certain northern 2*300MW unit increases wet cottrell after wet FGD system.After this unit furnace, environmental protection facility runs general, and ature of coal condition is also bad, wet except Inlet dust content≤100mg/Nm
3, droplet concentration is less than≤75mg/Nm
3, require wet dust content≤25mg/Nm except outlet
3, droplet concentration is less than≤20mg/Nm
3.This project Anodic 1 also uses anode 1 tread assembly of inscribed circle φ 300mm, tube length 4.5m, and what negative electrode adopted the TA2 material of φ 15mm makes line, the long 5.5m of negative electrode 2; On it, the length of spray point 3 is 12mm, diameter 3mm, needle point 4 angle 80 °, and the interlamellar spacing of spray point 3 is 60mm.。The wet dust content 18-22mg/Nm except outlet of actual measurement
3, droplet concentration 16-18mg/Nm
3.
embodiment four:
A certain western 2*300MW unit increases wet cottrell after wet FGD system.Wet dust content≤30mg/Nm except entrance
3, require wet dust content≤10mg/Nm except outlet
3.This project Anodic 1 have employed anode 1 tread assembly of inscribed circle φ 360mm, tube length 4m, and negative electrode adopts 2205 materials of φ 20mm to make line, the long 5.2m of negative electrode 2; On it, the length of spray point 3 is 15mm, diameter 3.5mm, needle point 4 angle 80 °, and the interlamellar spacing of spray point 3 is 40mm.The wet dust content 6-8mg/Nm except outlet of actual measurement
3.
Claims (8)
1. a wet cottrell negative electrode and positive electrode configuration structure, comprise negative electrode (2) and anode (1), negative electrode is arranged on cathode frame, and anode is arranged on anode superstructure, it is characterized in that: described anode (1) is regular hexagon tubular; Described negative electrode is the negative electrode (2) with spray point (3), and spray point (3) is in the arrangement of negative electrode (2) higher slice, and every layer uniform three, between adjacent layer, error angle is 60 °, and interlamellar spacing is 25-100mm; Described spray point (3) is vertically connected at negative electrode (2), and every root spray point (3) all points to the cylinder angle of the positive hexagon of anode (1).
2. wet cottrell negative electrode and positive electrode configuration structure according to claim 1, is characterized in that: the length of spray point (3) is 8-25mm; The diameter 2-4mm of spray point (3).
3. wet cottrell negative electrode and positive electrode configuration structure according to claim 1 and 2, is characterized in that: spray point (3) needle point (4) angle b is 50-140 °.
4. wet cottrell negative electrode and positive electrode configuration structure according to claim 3, is characterized in that: the cross section inscribed circle diameter of described anode (1) is 280-420mm, and anode (1) tube length is 3-6m; The thin-wall circular steel pipe that negative electrode (2) is diameter 12-25mm, negative electrode (2) length 4-7m.
5. wet cottrell negative electrode and positive electrode configuration structure according to claim 3, is characterized in that: described anode (1) inner surface lining pastes highdensity conductive carbon felt.
6. wet cottrell negative electrode and positive electrode configuration structure according to claim 3, is characterized in that: described negative electrode (2) adopts with the type of attachment of spray point (3) and welds.
7. wet cottrell negative electrode and positive electrode configuration structure according to claim 1, is characterized in that: anode (1) skeleton is the electro-conductive glass steel cylinder of vinylite and glass fibre mold pressing.
8. wet cottrell negative electrode and positive electrode configuration structure according to claim 1, is characterized in that: described spray point (3) adopts cold heading technique to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520472484.XU CN204746597U (en) | 2015-06-30 | 2015-06-30 | Wet electrostatic precipitator negative pole and positive pole configuration structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520472484.XU CN204746597U (en) | 2015-06-30 | 2015-06-30 | Wet electrostatic precipitator negative pole and positive pole configuration structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204746597U true CN204746597U (en) | 2015-11-11 |
Family
ID=54461355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520472484.XU Active CN204746597U (en) | 2015-06-30 | 2015-06-30 | Wet electrostatic precipitator negative pole and positive pole configuration structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204746597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959236A (en) * | 2015-06-30 | 2015-10-07 | 国电环境保护研究院 | Wet-type electrostatic dust collector cathode and anode configuration structure |
-
2015
- 2015-06-30 CN CN201520472484.XU patent/CN204746597U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959236A (en) * | 2015-06-30 | 2015-10-07 | 国电环境保护研究院 | Wet-type electrostatic dust collector cathode and anode configuration structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104959236A (en) | Wet-type electrostatic dust collector cathode and anode configuration structure | |
| CN101869872B (en) | Bipolar charge reinforced fine particle aggregation device | |
| CN204974205U (en) | Multichannel piece formula electrostatic precipitator | |
| CN204429495U (en) | A kind of cathode line for wet electrical dust precipitator | |
| CN204685291U (en) | A kind of positive plate of wet cottrell | |
| CN205518210U (en) | Negative pole line among flat tooth wet -type electrostatic precipitator | |
| CN201669162U (en) | Bipolar charge strengthened fine particulate matter coalescing device | |
| CN205518218U (en) | Found negative pole line among tooth wet -type electrostatic precipitator | |
| CN106423564B (en) | Cathode hanging system for tensioning-free device of wet dust collector | |
| CN204746597U (en) | Wet electrostatic precipitator negative pole and positive pole configuration structure | |
| CN106076631A (en) | A kind of cathode line for wet cottrell | |
| CN111744674A (en) | Novel wet-type electrostatic precipitator electrode and protection device | |
| CN202700653U (en) | Discharge electrode of electrostatic precipitator | |
| CN107159464A (en) | A kind of wet electrical dust precipitator novel cathode line | |
| US10022727B2 (en) | Discharge electrode suspension system using rings | |
| CN206027932U (en) | Wet -type electrostatic dust collector | |
| CN213349300U (en) | Charged magnetoelectric grading coagulation device | |
| CN205323982U (en) | Negative pole line among tooth wet -type electrostatic precipitator is found to stagger arrangement formula | |
| CN204380852U (en) | A kind of dust arrester | |
| CN202803406U (en) | Novel corona wire for electrostatic dust collector | |
| CN210434684U (en) | Wet-type electrostatic precipitator | |
| CN208599954U (en) | It is a kind of for removing the cathode line apparatus and electric precipitator of low concentration smoke contamination object | |
| CN105268556A (en) | Electric precipitation electric field cathode structure and electric precipitation device thereof | |
| CN206810495U (en) | Gauze formula electrostatic precipitator | |
| CN207126675U (en) | A kind of wet electrical dust precipitator novel cathode line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210013 No. 10 Pudong Road, Pukou District, Nanjing City, Jiangsu Province Patentee after: National Electric Environmental Protection Research Institute Co., Ltd. Address before: 210013 No. 10 Pudong Road, Pukou District, Nanjing City, Jiangsu Province Patentee before: State Power Environmental Protection Research Institute |