CN104984829A - Wet-type electrostatic dust collector - Google Patents
Wet-type electrostatic dust collector Download PDFInfo
- Publication number
- CN104984829A CN104984829A CN201510407438.6A CN201510407438A CN104984829A CN 104984829 A CN104984829 A CN 104984829A CN 201510407438 A CN201510407438 A CN 201510407438A CN 104984829 A CN104984829 A CN 104984829A
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- CN
- China
- Prior art keywords
- cathode filament
- cathode
- plate group
- positive plate
- wet cottrell
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- 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.)
- Pending
Links
- 239000000428 dust Substances 0.000 title abstract description 21
- 238000009413 insulation Methods 0.000 claims description 41
- 239000012212 insulator Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 16
- 239000003546 flue gas Substances 0.000 description 16
- 239000007921 spray Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Electrostatic Separation (AREA)
Abstract
The invention relates to a wet-type electrostatic dust collector. The existing electrostatic dust collector is provided with only one cathode filament, and the dust removal efficiency is not high. The invention provides the wet-type electrostatic dust collector, which comprises a cathode filament (6) and an anode plate group (8), wherein the cathode filament (6) penetrates through the middle of the anode plate group (8), and the wet-type electrostatic dust collector is characterized in that: each of the upper and lower parts of the anode plate group (8) is provided with a power supply system, the power supply systems are respectively connected to two ends of the cathode filament, the cathode filament (6) is provided with two sections connected with each other by virtue of an insulating body (14), and each section of cathode filament (6) is independently connected with a power source. Since the two cathode filaments are independently powered and controlled, the voltage can be adjusted arbitrarily according to dust removal characteristics, and hat the dust removal efficiency can be improved.
Description
Technical field
The present invention relates to a kind of wet cottrell.
Background technology
" Emission standards of air pollutants for coal-fired " GB 13223-2011 requires the concentration≤20mg/Nm3 of key area soot emissions, some provinces, east also more strictly propose the concept of " ultra-clean discharge ", namely concentration≤5mg/Nm3. the power plants of soot emissions installs this equipment of wet cottrell, successively to satisfied country and local requirements.Some power plant, chemical plant adopt the ammonia process of desulfurization, most of particle in its flue gas is the aerosol that desulphurization system produces, dust concentration is caused to reach 100 even more than 200mg/Nm3, depend merely on one-level wet cottrell to be difficult to make smoke dust discharge concentration reach national requirements, therefore need after desulphurization system, install two-stage wet cottrell additional.
In general, the wet cottrell internal main of a set of single-stage will comprise positive plate group, cathod system.Be separately fixed at above and below positive plate group on corresponding two-layer beam.Cathod system comprises negative electrode beam, cathode frame, cathode filament, cathode filament fixture etc., wherein negative electrode beam and cathode frame are above positive plate group, cathode filament passes in the middle of positive plate group, and cathode fixing device connects the foot of cathode filament, and it is positioned at the below of positive plate group.Owing to only having a cathode filament, there is following problem, powered by an electric power system, cathode filament is all a voltage from top to bottom, and efficiency of dust collection is not high, that multiple wet cottrell is connected now simultaneously, be together in series, between two-stage, must certain space be vacated, cause the aspect ratio of whole deduster higher, consumptive material is also larger, and the entirety investment of engineering is also more.
Summary of the invention
1, technical problem to be solved:
Existing electrostatic precipitator, only have a cathode filament, efficiency of dust collection is not high, when needs certain altitude, want multiple series connection, be together in series, between two-stage, must certain space be vacated, cause the aspect ratio of whole deduster higher, consumptive material is also larger, and the entirety investment of engineering is also more.
2, technical scheme:
In order to overcome the above problems, the invention provides a kind of wet cottrell, comprise cathode filament 6 and positive plate group 8, cathode filament 6 passes in the middle of positive plate group 8, it is characterized in that: positive plate group about 8 respectively has an electric power system, is connected respectively with cathode line two ends, and cathode filament 6 has two sections, connected by insulator 14, and every section of cathode filament 6 all separate connection power supplys.
Be composed in series by the wet cottrell of two single-stages, the cathode filament 6 of two one poles is connected by insulator 14, and the cathode filament 6 of two one poles connects electric power system respectively, the cathode filament 6 separate connection power supply of each one pole.
Also comprise, lower positive plate group beam, on, lower negative electrode beam, on, lower cathode frame and insulation room 7, positive plate group 8 is in the core position of described wet cottrell, positive plate group about 8 two ends are separately fixed at, on lower positive plate group beam, it is firm that upper negative electrode beam 9 is connected with upper cathode frame 15, cathode filament 6 hangs on cathode frame 15, and ensure that a cathode filament 6 is installed in the center of each positive plate, cathode filament 6 is divided into two sections, connect the upper of insulator 14 respectively, lower end, cathode filament 6 below insulator 14 is strained by lower cathode frame 16, lower negative electrode beam 5 is fixed with the shell of described wet cottrell by insulation room 7, insulation is provided with insulator in room 7, insulator one end connects insulation room 7, one end connects the point of incoming cables of described power supply.
Insulation room 7 is cavity.
Insulation is connected to sealing system outside room 7, sealing system comprises heater 24, pressure transmitter 21, temperature transmitter 22, seal fan 17, described heater 24, seal fan 17 connect successively, wherein heater 24 is connected with insulation room, between insulation room and heater 24, be provided with temperature transmitter 22 and pressure transmitter 21.
3, beneficial effect:
Due to two independently-powered controls of cathode filament, so two cathode filaments can according to the feature of dedusting, any regulation voltage, thus the efficiency that improve dedusting.Just so, so the installation method of two-step filter can be changed, the positive plate group of two-stage is made an entirety, one-level wet cottrell is powered above positive plate group, and another grade is powered in the below of positive plate group.The cathode filament of two-stage is connected by insulating element in positive plate group.Thus reduce the height of whole equipment, also save two-layer anode built-in beam, two cover cathode wire fixing devices, reduce the initial outlay of equipment simultaneously.
Accompanying drawing explanation
Fig. 1 two-stage wet cottrell outline drawing.
Fig. 2 cathod system scheme of installation.
Fig. 3 insulate room sealing system flow chart.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
The invention provides a kind of wet cottrell, comprise cathode filament 6 and positive plate group 8, cathode filament 6 passes in the middle of positive plate group 8, it is characterized in that: positive plate group about 8 respectively has an electric power system, be connected with cathode line two ends respectively, cathode filament 6 has two sections, is connected by insulator 14, power supply has two, and every section of cathode filament 6 all connects one of them power supply.
The advantage of this structure is: two cathode filaments are independently power supply control, so voltage can be different, and like this can for the feature of flue gas, carry out the adjustment of voltage, in the import department of flue gas, dust is many, the voltage of the cathode filament 6 of this section can be tuned up, can better dedusting, from the import department of flue gas down, the relative import department of dust will lack, the voltage of the cathode filament of another section can be turned down, by such adjustment, dedusting effectively, and can reduce costs.
Two sections of cathode filaments are connected by insulator 14, and the position of insulator 14 can be put arbitrarily, and the length of insulator 14 also can regulate arbitrarily, according to the characteristic distributions of deduster dust, put suitable position, suitable length, more can improve the efficiency of dedusting.
Connected by insulator 14 just because of this two sections of cathode filaments, and the structure of two independently-powered controls of cathode filament, the wet cottrell of two one poles is being connected, after the wet cottrell series connection of two one poles, the cathode filament 6 of two one poles is connected by insulator 14, the cathode filament 6 of two one poles connects power supply respectively, and the cathode filament 6 of each one pole is powered independent control.Under these circumstances, by the wet scrubber of two one poles, an entirety can be made.When doing integrally, only have 1 cathode filament from top to bottom, efficiency of dust collection is not high.And structure of the present invention is done integrally, because two cathode filaments independently connect power supply, respectively by respective Energy control, efficiency of dust collection is unaffected, and due to two one pole wet cottrells as a whole, reduce the height of whole equipment, also save two-layer anode built-in beam simultaneously, two cover cathode wire fixing devices, have saved a set of spray system, have reduced the initial outlay of equipment.
Be wet flue gas inside when wet cottrell runs, with drop on the insulator that the words that wet flue gas enters insulation room will make insulation room facade, thus can produce creepage phenomenon, equipment cannot work.So in order to prevent insulation indoor from having water smoke, drop, just increase a set of sealing system in the outside of insulation room, before flue gas passes into wet cottrell, the high temperature air higher than wet cottrell internal pressure is blown into insulation room, such wet flue gas would not enter.
So be connected to sealing system outside insulation room 7, sealing system comprises heater 24, pressure transmitter 21, temperature transmitter 22 seal fan 17, described heater 24, seal fan 17 connect successively, wherein heater 24 is connected with insulation room, between insulation room and heater 24, be provided with temperature transmitter 22 and pressure transmitter 21.
Acting as heating insulation room 7 of heater 24, insulation speckles with dust, water smoke or flue gas in room 7, the direct work affecting cleaner, insulation room 7 is cavity structure, and inside is hollow, to heating outside insulation room 7, the drying of insulation room 7 can be kept, do not produce creepage phenomenon.
Bonding pressure transmitter outside insulation room 7, makes the pressure in the cavity of insulation room 7 be greater than the pressure of insulator exterior.
Pressure transmitter 21 monitors the pressure that insulation is indoor, works, ensure to make the pressure of hot blast be greater than the pressure of flue gas if hypotony just starts backup seal blower fan 17.
Temperature transmitter 22 is greater than 100 degree for the hot blast monitoring seal fan 17 and blow out, and makes like this to keep dry in insulation room 7, does not have the liquid such as water droplet and exists.
Embodiment 1
Be composed in series by the wet cottrell of two single-stages, the cathode filament 6 of two one poles is connected by insulator 14, and the cathode filament 6 of two one poles connects electric power system respectively, the cathode filament 6 separate connection power supply of each one pole.Also comprise, lower positive plate group beam, on, lower negative electrode beam, on, lower cathode frame and insulation room 7, positive plate group 8 is in the core position of described wet cottrell, positive plate group about 8 two ends are separately fixed at, on lower positive plate group beam, it is firm that upper negative electrode beam 9 is connected with upper cathode frame 15, cathode filament 6 hangs on cathode frame 15, and ensure that a cathode filament 6 is installed in the center of each positive plate, cathode filament 6 is divided into two sections, connect the upper of insulator 14 respectively, lower end, cathode filament 6 below insulator 14 is strained by lower cathode frame 16, lower negative electrode beam 5 is fixed with the shell of described wet cottrell by insulation room 7, insulation is provided with insulator in room 7, insulator one end connects insulation room 7, one end connects the point of incoming cables of described power supply.
When wet cottrell runs, flue gas enters from gas approach 4, spraying system 3 can be atomized flue gas, acquired by spraying system, fresh water (FW) temperature is below 15 DEG C, spray direction and flue gas direction are forward or reverse, atomization can make granule condense further, thus can improve efficiency of dust collection.After even distribution device 13, after even distribution device is placed on gas approach, effect is to make flue gas be evenly distributed on wet cottrell inside.Its structure has the plate of circular hole one by one, the diameter 100mm of circular hole, and percent opening is about 30%-40%, and uniform thickness of slab 2-20mm, flue gas is evenly distributed in positive plate group 8.Upper and lower two sections of cathode filaments 7 independently power supply control, can, according to actual condition regulation voltage respectively, make efficiency of dust collection optimum.Last flue gas is gone out from exhanst gas outlet 12.In order to ensure that wet cottrell is stable, insulation room sealing system is accessed in the insulation room 7 at electric power incoming line place, the insulation room of insulation room sealing system two-stage cathod system up and down provides pressure 1kPa-10kPa, the air of temperature 50 C-120 DEG C, guarantee insulator surface is dry, does not produce creepage phenomenon.When wet cottrell runs a period of time, positive plate group 8 has certain dust stratification, now, start spray system 10 antianode plate group 8 and cathod system spray irrigation simultaneously.
Although the present invention with preferred embodiment openly as above; but they are not of the present invention for limiting; anyly have the knack of this those skilled in the art; without departing from the spirit and scope of the invention; can make various changes or retouch from working as, what therefore protection scope of the present invention should define with the claims of the application is as the criterion.
Claims (6)
1. a wet cottrell, comprise cathode filament (6) and positive plate group (8), cathode filament (6) passes in the middle of positive plate group (8), it is characterized in that: positive plate group (8) respectively has an electric power system up and down, be connected with cathode line two ends respectively, cathode filament (6) has two sections, is connected by insulator (14), and every section of cathode filament (6) all separate connection power supplys.
2. wet cottrell as claimed in claim 1, it is characterized in that: be composed in series by the wet cottrell of two single-stages, the cathode filament (6) of two one poles is connected by insulator (14), the cathode filament (6) of two one poles connects electric power system respectively, cathode filament (6) the separate connection power supply of each one pole.
3. wet cottrell as claimed in claim 2, it is characterized in that: also comprise, lower positive plate group beam, on, lower negative electrode beam, on, lower cathode frame and insulation room (7), positive plate group (8) is in the core position of described wet cottrell, positive plate group (8) is separately fixed at two ends up and down, on lower positive plate group beam, it is firm that upper negative electrode beam (9) is connected with upper cathode frame (15), cathode filament (6) hangs on cathode frame (15), and ensure that a cathode filament (6) is installed in the center of each positive plate, cathode filament (6) is divided into two sections, connect the upper of insulator (14) respectively, lower end, the cathode filament (6) of insulator (14) below is strained by lower cathode frame (16), lower negative electrode beam (5) is fixed by the shell of insulation room (7) with described wet cottrell, insulator is provided with in insulation room (7), insulator one end connects insulation room (7), one end connects the point of incoming cables of described power supply.
4. wet cottrell as claimed in claim 3, is characterized in that: insulation room (7) is cavity.
5. the wet cottrell as described in claim 3 or 4, it is characterized in that: insulation room (7) outside is connected to sealing system, sealing system comprises heater (24), pressure transmitter (21), temperature transmitter (22), seal fan (17), described heater (24), seal fan (17) connect successively, wherein heater (24) is connected with insulation room with pressure transmitter, between insulation room and heater (24), be provided with pressure transmitter (21), temperature transmitter (22).
6. the wet cottrell as described in claim as arbitrary in claim 2-4, is characterized in that: two shown one pole wet cottrells are as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407438.6A CN104984829A (en) | 2015-07-13 | 2015-07-13 | Wet-type electrostatic dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407438.6A CN104984829A (en) | 2015-07-13 | 2015-07-13 | Wet-type electrostatic dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104984829A true CN104984829A (en) | 2015-10-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510407438.6A Pending CN104984829A (en) | 2015-07-13 | 2015-07-13 | Wet-type electrostatic dust collector |
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| CN (1) | CN104984829A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105327779A (en) * | 2015-11-24 | 2016-02-17 | 浙江双屿实业有限公司 | Wet-type electrostatic precipitator |
| CN105536421A (en) * | 2016-03-09 | 2016-05-04 | 山东蓝博环保设备有限公司 | Wet type electrostatic dust collector |
| CN105562210A (en) * | 2016-03-15 | 2016-05-11 | 新乐市凯新除烟设备有限公司 | Electrostatic smoke removing machine and electrostatic smoke removing system |
| CN105655064A (en) * | 2016-03-09 | 2016-06-08 | 浙江天地环保工程有限公司 | Support insulator sealing system of wet battery predischarge device |
| CN105817328A (en) * | 2016-04-28 | 2016-08-03 | 浙江天地环保工程有限公司 | Preposed electric discharge device of horizontal wet electrical dust precipitator |
| CN106513178A (en) * | 2016-10-13 | 2017-03-22 | 浙江天地环保科技有限公司 | Pressure maintaining and sealing structure of wet electric high-frequency power supply insulator chamber |
| CN107179787A (en) * | 2016-03-10 | 2017-09-19 | (株)普拉兹马太 | The purging heater control device of electrostatic (electric dust) precipitator |
| CN113414008A (en) * | 2021-07-28 | 2021-09-21 | 中钢集团天澄环保科技股份有限公司 | Vertical wet-type electrostatic precipitator |
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| CN104525376A (en) * | 2014-12-22 | 2015-04-22 | 上海龙净环保科技工程有限公司 | Subarea power supply system and subarea power supply method for wet electric precipitator |
| CN104549742A (en) * | 2013-10-29 | 2015-04-29 | 杭州天明环保工程有限公司 | Wet electrostatic dust collector |
| CN204911789U (en) * | 2015-07-13 | 2015-12-30 | 南通亚泰工程技术有限公司 | Wet electrostatic precipitator |
-
2015
- 2015-07-13 CN CN201510407438.6A patent/CN104984829A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH03232553A (en) * | 1990-02-08 | 1991-10-16 | Matsushita Electric Ind Co Ltd | Dust collecting electrode |
| CN2547407Y (en) * | 2002-06-13 | 2003-04-30 | 北京天惠人控制设备技术有限公司 | Energy-saving fuzzy antistatic dust-cleaning apparatus |
| CN1698970A (en) * | 2005-05-27 | 2005-11-23 | 石家庄市自动化研究所 | Automatic control method for dust concentration and mating power supply device therefor |
| CN2834703Y (en) * | 2005-11-11 | 2006-11-08 | 石家庄市自动化研究所 | Power supply device dedicated for electrostatic dust collection |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105327779A (en) * | 2015-11-24 | 2016-02-17 | 浙江双屿实业有限公司 | Wet-type electrostatic precipitator |
| CN105536421A (en) * | 2016-03-09 | 2016-05-04 | 山东蓝博环保设备有限公司 | Wet type electrostatic dust collector |
| CN105655064A (en) * | 2016-03-09 | 2016-06-08 | 浙江天地环保工程有限公司 | Support insulator sealing system of wet battery predischarge device |
| CN105655064B (en) * | 2016-03-09 | 2017-04-19 | 浙江天地环保科技有限公司 | Support insulator sealing system of wet battery predischarge device |
| CN105536421B (en) * | 2016-03-09 | 2017-06-30 | 山东蓝博环保设备有限公司 | Wet cottrell |
| CN107179787A (en) * | 2016-03-10 | 2017-09-19 | (株)普拉兹马太 | The purging heater control device of electrostatic (electric dust) precipitator |
| CN107179787B (en) * | 2016-03-10 | 2019-06-07 | (株)普拉兹马太 | The purging heater control device of electrostatic (electric dust) precipitator |
| CN105562210A (en) * | 2016-03-15 | 2016-05-11 | 新乐市凯新除烟设备有限公司 | Electrostatic smoke removing machine and electrostatic smoke removing system |
| CN105817328A (en) * | 2016-04-28 | 2016-08-03 | 浙江天地环保工程有限公司 | Preposed electric discharge device of horizontal wet electrical dust precipitator |
| CN106513178A (en) * | 2016-10-13 | 2017-03-22 | 浙江天地环保科技有限公司 | Pressure maintaining and sealing structure of wet electric high-frequency power supply insulator chamber |
| CN106513178B (en) * | 2016-10-13 | 2018-05-22 | 浙江天地环保科技有限公司 | A kind of control method of wet electric high frequency electric source insulator chamber pressurize sealing structure |
| CN113414008A (en) * | 2021-07-28 | 2021-09-21 | 中钢集团天澄环保科技股份有限公司 | Vertical wet-type electrostatic precipitator |
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Application publication date: 20151021 |
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