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Wet Electrostatic Precipitator
Classification ye electrostatic precipitator
Zvinoenderana neakasiyana nzira dzekuchenesa dzinogona kukamurwa kuita yakaoma electrostatic precipitator, wet electrostatic precipitator, fog particle electrostatic collector uye semi-wet electrostatic precipitator.
(1) Dry electrostatic precipitator: guruva riri mugetsi reflue rinobatwa munzvimbo yakaoma, uye guruva rakaiswa paguruva rinounganidza bhodhi rinocheneswa ne mechanical vibration uye electromagnetic vibration.
(2) Wet electrostatic precipitator: nokuda kweguruva rinounganidzwa neguruva rinounganidza danda, mvura inopfapfaidza inopfachukira kana kushandisa nzira yakakodzera yekugadzira firimu remvura pamusoro pevhu rekuunganidza guruva, kuitira kuti guruva rinoiswa pamuunganidzi weguruva uye mvura inoyerera pamwe chete kune chikamu chepasi chemuunganidzi weguruva kuti ibudise, uchishandisa nzira iyi yekuchenesa inonzi wet electrostatic precipitator.
(3) Fog particles electrostatic defogger: Shandisa electrostatic precipitator kubata madonhwe senge sulfuric acid fog uye tar fog, uye wobva wayerera uchidzika muchimiro chemvura mushure mekubatwa nekubvisa.
(4) Semi-wet electrostatic precipitator: zvose zvakaoma electrostatic precipitator uye wet electrostatic precipitator zvakanakira, pane yakaoma, yakanyorova yakasanganiswa electrostatic precipitator, inozivikanwawo semi-wet electrostatic precipitator; Chimiro chegadziriro ndechekuti tembiricha yepamusoro yeflue gasi inotanga kubudiswa kuburikidza nemakamuri maviri akaoma ekubvisa guruva, uyezve kuburikidza nemakamuri ekubvisa guruva kuburikidza nechimuney.
Classification ye electrostatic precipitator
Wet electrostatic precipitator (inozivikanwawo sewet electric dust collector) inoshanda sezvinotevera:
1. Pakutanga kwemaitiro, chinhu chine simba chine static magetsi chinopinda mumhepo inoyerera yemvura yakanyorova ye electrostatic precipitator.
2. Kuyerera kwemhepo kunotanga kupfuura nemukamuri yekupfapfaidza yemvura umo pfapfaidzo inotora nekunyorovesa zvidimbu zviri mumhepo.
3. The spray adsorbs particles kubva kumhepo kusvika kumadonhwe emvura, zvichiita kuti zvireme uye zvinyure kusvika pasi.
4. Ivo vanosangana nemvura iri muzasi sedimentation tangi, nokudaro vachiparadzaniswa zvachose nemhepo inoyerera.
5. Electrostatic field inoshandiswa kuwedzera guruva rekubvisa maitiro. Mumvura inonaya yemagetsi, zvimedu zvekupfapfaidza zvinoshandiswa nejenareta remagetsi kukamuri yekupfapfaidza yemvura zvine static charge.
6. Zvimedu zvakanamirwa pamadonhwe emvura ane electrostatic charges zvinonamirwa zvinobudirira kumadonhwe emvura nemagetsi emagetsi uye nekunyorova nzvimbo nekuwedzera kwakanyanya.
7. Madonhwe emvura mushure mekurapwa kwe electrostatic anodzoserwa mutangi re sedimentation, uye kusungirirwa kwechinhu chakaderedzwa mweya usati wapfuura nemuunganidzi weguruva.
8. Mhepo yakacheneswa inosunungurwa mukati memamiriro ezvinhu, nokudaro kubudirira kubviswa kweguruva.
Iyo yekushanda musimboti we wet electrostatic precipitator inonyanya kutsamira pakusanganiswa kwemvura yekupfapfaidza uye electrostatic maitiro kuparadzanisa zvidimbu kubva kumhepo uye zvinobudirira kuchenesa mhepo.
Wet electrostatic precipitator imhando yechipiri guruva yekubvisa midziyo yakawedzerwa mushure mekunyorova desulphurization. Wet electrostatic precipitator mudziyo mutsva wekubvisa guruva unoshandiswa kubata neguruva uye diki-diki, iyo inonyanya kushandiswa kubvisa huruva, PM2.5, aerosol, kunhuwa, acid fog, madonhwe emvura uye zvimwe zvinokuvadza mumagasi akanyorova, uye chishandiso chakakodzera chekudzora kusvibiswa kweguruva remuchadenga.
Wet electrostatic precipitator inonyanya kuumbwa ne inlet uye outlet flue, precipitator imba muviri, deflector ndiro, rectifier grid, anode guruva rinotora ndiro cathode mutsara, insulation bhokisi, flushing mvura system, magetsi uye control system. Rudzi rwechimiro chinowanzo kupatsanurwa mumhando mbiri: ndiro uye chubhu. Iyo guruva muunganidzwa weplate yakanyanya kupfava, kuumbwa kwefirimu remvura kwakanaka, mutsara wekona unogoverwa pakati pemahwendefa, uye muviri mukuru wakafanana neyakaoma electrostatic precipitator, inogona kubata gasi reflue mune dhigirii kana kufamba kwakatwasuka. Iyo tubular guruva rekuunganidza danda rinowanzo denderedzwa kana polygonal simbi chubhu inopindirana, uye mutsara wekorona unogoverwa nepakati, unogona chete kubata utsi hwakatwasuka. Izvo zvikamu zvekunze zvekunyorova kwe electrostatic precipitator zvinotora zvakajairika kabhoni simbi, uye mukati memukati wakavharwa kudzivirira huwori. Paunenge uchiisa chigadziro, kutarisisa kunofanira kubhadharwa kune kukuvara kwemukati wepamusoro, kunyanya welding point uye majoini ezvikamu.
Wet electrostatic precipitator ine miviri mikuru yekumisikidza mafomu, imwe ndeye kushandisa corrosion-resistant conductive zvinhu semuunganidzi weguruva, imwe yacho kushandiswa kwemvura yekupfapfaidza kana kufashukira mvura kuti iite conductive mvura firimu, kushandiswa kwezvinhu zvisiri-conductive zvisiri zvesimbi semuunganidzi weguruva, hongu, inogona zvakare kukamurwa kuita cross-kuyerera uye vertical plate inoyerera, vertical plate inoyerera, iyo inoyerera yakawanda-inoyerera gasi. kuyerera kwakananga kune yakachinjika mukati nekubuda. Chimiro chakafanana neyakaoma electrostatic precipitator, kuyerera kwakamira kunowanzo kuve tubular chimiro, uye kuyerera kwegasi kuri mukati nekubuda munzira yakatwasuka.
Wet electrostatic precipitator inogona kukamurwa kuita muchinjika-kuyerera mhando uye vertical kuyerera mhando. Pasi penzvimbo imwechete yekufefetera muchinjika-chikamu, guruva rekubvisa guruva reiyo vertical flow wet precipitator yakapetwa kaviri iyo yemhando yekuyerera-kuyerera.
Kuumbwa kwe wet electrostatic precipitator
Wet electrostatic precipitator (WESP) inonyanya kuumbwa nechimiro chemuviri, cathode system, anode system, atomization flushing system, mvura yekurapa system, magetsi ekudzora system, nezvimwewo (ona mufananidzo). Muviri weWESP wakangofanana neiyo yeESP yakaoma, inosanganisira nyanga inopinza, nyanga yekuburitsa, goko, discharge electrode uye furemu, muunganidzi insulator, atomizing nozzle uye pombi.
(1) Cathode system: Iyo cathode system inoumbwa necathode inotakura danda, cathode mutsara, inorema huremu uye yakaderera cathode furemu. Iyo yepamusoro yekupedzisira yemutsara we cathode inosungirirwa pane cathode inotakura danda, uye iyo yakaderera mugumo inosanganiswa nemutsara we cathode uye uremu hunorema. Nheyo yekusarudza yewaya yecathode yakasimba, yakaderera corona voltage, kubuda kwakasimba, yakakwira corona ikozvino density, yakanaka kusimba, midzi yekudzivirira, yakasimba chloride ion corrosion resistance (senge lead-antimony alloy materials). Mutsara we sawtooth unowanzo shandiswa se electrode yekuburitsa kuti isangane nezvinodiwa zvekuchaja guruva. Sarudzo parameters akasiyana cathode mitsetse.
(2) Anode system: Iyo anode system inoshandisa yakakosha anode ndiro (chubhu) chimiro kusangana nezvinodiwa zvekushandisa zveatomization spray uye kugeza. Kune vertical wet electrostatic precipitator, mazhinji ezvino anode masisitimu anoshandisa hexagonal conductive uye flame retardant girazi faibha yakasimbisa epurasitiki chubhu masumbu akarongwa semapango ekuunganidza guruva. Iyo electrode yemuzinga inoumbwa nehexagonal CFRP huchi machubhu ane yemukati tangent denderedzwa ye φ350mm/360mm, kukora kwemadziro kwe3mm uye kureba kwe6000mm, uye yakamiswa padanda rekutsigira rechubhu bundle.
(3)Atomizing uye washing system: Iyo atomizing uye yekuwachisa sisitimu inowanzoiswa pachikamu chepamusoro chekunyorova uye electrostatic precipitator. Madonhwe emvura atomizing anopinda muWESP wet electrostatic precipitator work area ine flue gasi, uye anowanzoita guruva rinounganidza electrode pasi pechiito chemagetsi emagetsi, uye kugadzira firimu remvura paguruva rinounganidza electrode. Pasi pechiito chegiravhiti, madonhwe anotakurwa mutangi rekuunganidza mvura kana desulfurization tower. Madonhwe emhute ane akati wandei akakosha pakuita kwe electrostatic precipitator guruva kubviswa.
1. Madonhwe emhute anogona kuchengetedza electrode yekuyerera yakachena, kuitira kuti korona yave yakasimba: madonhwe emhute akarova guruva rekuunganidza danda kuti rirambe richiumba firimu remvura rakaonda uye rakafanana, iro rinogona kudzivirira "secondary flying" yevhu rakaderera rinopikisa, gadzirisa guruva rakakwirira rekudzivirira kudzivirira "anti-corona" chiitiko, kudzivirira iyo yakasimba, viscosity uye inonamatira guruva, uye inonamira guruva re electro. guruva rinoputika.
2. Droplet inopfapfaidzwa zvakananga kune discharge electrode uye corona area, uye discharge electrode inogonawo kuita basa reatomizer. Iwo magetsi akafanana anogona kuona kubuda kwecorona, atomization yemvura, mhute yemvura uye guruva particle kuchaja, uye kuona kusanganiswa kwemagetsi emagetsi nemhute yemvura.
3. Madonhwe acho anonyatsopfapfaidzwa kune electrode yekuyerera, uye kubhadharisa kwakakwira, iyo inogona kuvandudza zvakanyanya guruva rekubvisa huturu pane kudhumhana kupindira uye kunyura ndiro yeatomu yemvura mumunda wemagetsi.
4. Pfapfaidza madonhwe ku discharge electrode uye corona area kuti uwedzere atomize mhute yemvura. Iko hakuna kutarisana kwakananga pakati pemagetsi akamira uye atomizing spray mudziyo, uye hapana dambudziko rekuisa.
5. Iyo burr electrode inogona kuburitsa yakasimba electrostatic munda, uye ine yakanaka corona discharge kugona, uye iyo electrostatic uye fog droplet synergy. Iine yakakwirira guruva kubvisa kunyatsoshanda.
6. Madonhwe anoumba kuyerera kwemvura pane guruva rekuunganidza danda, kuitira kuti guruva rinounganidza danda (pombi) rigare rakachena, rinobvisa chigadziro chekudengenyeka, uye kudzivisa kusvibiswa kwechipiri kunokonzerwa nekubviswa kweguruva kwakaoma nekuda kwekuchenesa kudengenyeka.
(4) Mvura yekurapa system: Iyo nzira yekuchenesa mvura inosanganisira tangi yemvura inotenderera, pombi yemvura inotenderera, tangi yemvura yemvura, pombi yemvura yemvura, tangi yekuchengetedza alkali, pombi yealkali metering, tangi yemvura yemaindasitiri, pombi yemvura yemaindasitiri nemapaipi anowirirana. Mushure mekupfapfaidza uye guruva, iyo yakaunganidzwa mvura inotanga kuunganidzwa mudhiraini tangi, uye yozowedzerwa kune NaOH mhinduro kugadzirisa iyo pH kukosha, uye yozoburitswa kune desulfurization system seyekuwedzera mvura. Imwe mvura inopfachukira kutangi rekutenderera kuburikidza netangi remvura. Mvura inotenderera mutangi remvura inotenderera inogadziriswa nepH kukosha kwe8 ~ 10 nekuwedzera mvura yemumaindasitiri uye lye, iyo inoshandiswa semvura inotenderera yemvura yakanyorova ye electrostatic precipitator uye inodzoserwa kune atomizing nozzle. Mvura yakarasika nekubuda kwekunze inowedzerwa nemvura yeindasitiri.
(5) Electric control system: Iyo yemagetsi control system yeWESP wet electrostatic precipitator ine zvikamu zviviri: low voltage control system uye high voltage control system. Mutoro wemagetsi unonyanya kusanganisira WESP precipitator muviri, insulated bhokisi kudziyisa mudziyo, pombi yemvura uye zvichingodaro. Iyo yakaderera-voltage control system inoshandiswa kune simba rekugovera kutonga kweiyo insulated bhokisi heater, yakashongedzerwa nePLC control system, iyo inoshandiswa kuona otomatiki yeiyo insulated box heater, kuitira kuti tembiricha yebhokisi yakavharidzirwa igare yakachengetedzwa pa100 ~ 120 ℃; Iyo yakakwira voltage control system inonyanya kuve yakakwira voltage control kabati uye yakakwira voltage jenareta, iyo inopa simba reiyo corona electrode mudziyo kugadzira munda wekona uye kuwana yakadzika kucheneswa kweflue gasi.
Kupfupisa, zvikamu zveiyo wet electrostatic precipitator yakaoma uye yakasiyana, uye chikamu chimwe nechimwe chinoita basa rakakosha. Iyo electrostatic precipitator unit, mvura inotenderera system, ventilation system uye control system inoshanda pamwe chete kupedzisa kubviswa kweguruva uye kucheneswa kwemhepo. Basa rekubatana rezvikamu izvi rinoita kuti mvura ye electrostatic precipitator ive inoshanda uye yakavimbika midziyo yekudzora kusvibiswa kwemhepo.
Nheyo yekushanda ye electrostatic precipitator
Nheyo yekushanda ye electrostatic precipitator ndeye kushandisa yakakwira voltage munda wemagetsi kuti ionize iyo flue gasi, uye guruva rinochajwa mumhepo kurukova rinopatsanurwa kubva kumhepo kurukova pasi pechiito chemunda wemagetsi. Electrode isina kunaka inogadzirwa newaya yesimbi ine maumbirwo akasiyana echikamu uye inonzi discharge electrode. Iyo yakanaka electrode inogadzirwa nesimbi mahwendefa emhando dzakasiyana dzejometri uye inonzi guruva rekuunganidza electrode. Kuita kwe electrostatic precipitator kunokanganiswa nezvinhu zvitatu, senge guruva zvivakwa, chimiro chemidziyo uye flue gasi velocity. Iyo chaiyo yekupikisa guruva indekisi yekuongorora maitiro emagetsi, ayo ane simba rakananga pakubudirira kwekubvisa guruva. Kupikiswa chaiko kwakadzikira, uye zvinonetsa kuti guruva rirambe riri paguruva rinounganidza electrode, zvichiita kuti vadzokere kumhepo. Kana iyo chaiyo yekupikisa yakakwira zvakanyanya, iyo huruva particle charge inosvika kuguruva inounganidza electrode haisi nyore kuburitsa, uye voltage gradient pakati pehuruva zvidimbu zvinokonzeresa kuparara kwenzvimbo uye kubuda. Aya mamiriro achaita kuti kushanda kwekubvisa guruva kuderera.
Iyo magetsi emagetsi emagetsi precipitator anoumbwa ne control box, booster transformer uye rectifier. Iko kubuda kwemagetsi emagetsi emagetsi kunewo simba guru pakubvisa guruva. Naizvozvo, simba rekushanda re electrostatic precipitator rinofanira kuchengetwa riri pamusoro pe40 kusvika 75kV kana kunyange 100kV.
Kuenzaniswa nemimwe midziyo yekubvisa, electrostatic precipitator ine simba shoma rekushandisa uye yakanyanya guruva yekubvisa kunyatsoita. Inokodzera kubvisa 0.01-50μm guruva mu flue gasi, uye inogona kushandiswa kune dzimwe nguva ine yakakwira flue gasi tembiricha uye yakanyanya kudzvanywa. Chiitiko chacho chinoratidza kuti kukura kwehuwandu hwegasi hunobatwa, ndiko kuwedzera kwehupfumi mari yekudyara uye kushanda kwe electrostatic precipitator.
Zvinhu zvinokanganisa kushanda kwe electrostatic precipitator
Kuita kwe electrostatic precipitator kunokanganiswa nezvinhu zvitatu, senge guruva zvivakwa, chimiro chemidziyo uye flue gasi velocity. Iyo chaiyo yekupikisa guruva indekisi yekuongorora maitiro emagetsi, ayo ane simba rakananga pakubudirira kwekubvisa guruva. Kupikiswa chaiko kwakadzikira, uye zvinonetsa kuti guruva rirambe riri paguruva rinounganidza electrode, zvichiita kuti vadzokere kumhepo. Kana iyo chaiyo yekupikisa yakakwira zvakanyanya, iyo huruva particle charge inosvika kuguruva inounganidza electrode haisi nyore kuburitsa, uye voltage gradient pakati pehuruva zvidimbu zvinokonzeresa kuparara kwenzvimbo uye kubuda. Aya mamiriro achaita kuti kushanda kwekubvisa guruva kuderera. Electrostatic precipitator inokodzera kurapwa kwegasi ine guruva rakatetepa, uye mamwe maturusi ekubvisa guruva anofanirwa kutariswa kune yakakwira guruva matambudziko.
1. Condensation: Kana condensation yakakonzerwa nekudzora thermodynamic zvimiro zvekuyerera kwegasi rinoyerera, zvimedu zvinogona kuita basa rekukura nuclei mukuita condensation. Machende anozoputirwa nemvura anobatwa zviri nyore neakakosha nzira yekuteya yatsanangurwa pamusoro. Condensation inowanzo wanikwa nekudzoreredza iyo mhute condensate pane yakaderera kudzvanywa kune yakakwira dzvinyiriro, kuunza chiutsi mukuyerera kwakazara, kana/uye kutonhora zvakananga kuyerera.
2. Chidziviso: Kana chidimbu chidiki chikafamba chakatenderedza chipingamupinyi chiri mumvura, chinogona kusangana nechipingamupinyi nekuda kwehukuru hwakakura hwemuviri hwechikamu. Izvi zvinoitikawo mukuita kwehukama hweguruva particles uye madonhwe.
3. Inertial impact: Kana zvimedu zvikabuda mugasi rinoyerera, apo gasi rinoyerera rikasangana nechipingamupinyi, inertia ichaita kuti zvimedu zviparadze kuburikidza negasi kuyerera kwakakomberedza chipingamupinyi, uye zvimwe zvezvikamu zvicharova chipingamupinyi. Mukana wechiitiko chakadaro zvinoenderana nemhando dzakasiyana-siyana, kunyanya hukuru hwe inertia yezvikamu uye hukuru hwechipingamupinyi (mumamiriro ezvinhu emvura inonaya, chipingamupinyi ndicho chinodonha). Mumuunganidzi weguruva, inertial kukanganisa inogadzirwa pakati pehuruva zvimedu uye madonhwe akakura.
4. Electrostatic charging: Kana paine machaji akasiyana emagetsi pakati pezvimedu nemadonhwe, zvinova zvinobudirira kubatanidza guruva particles nemadonhwe. Iyo electrostatic scrubber inoshandisa iyi mashandiro kuwedzera kukwezva kweguruva uye madonhwe emvura uye nekudaro inovandudza guruva rekuunganidza.
5. Diffusion: Zvimedu zviduku zvine aerodynamic particle size isingasviki 0.3μm (yakananga gravity ye1) inokosha kubatwa nekupararira, nokuti hukuru hwavo hushoma hahukwanisi kubudisa inertial kukanganisa, uye hukuru hwavo hwemuviri hahusi nyore kudziviswa. Nzira iyo zvidimbu zvidiki zvinofamba kubva munzvimbo dzepamusoro-soro kuenda kunzvimbo dzepasi shoma inonzi diffusion. Kupararira kwakakosha nekuda kwekuita kweBrownian, kufamba kusingaite kwezvimedu zvidiki sezvazvinodhumhana nemamorekuru egasi akatenderedza uye zvimwe zvimedu. Kana zvimedu izvi zvakavharirwa mumadonhwe, kuwanda kwezvimedu munzvimbo iri pedyo nekudonhedza kunoderera, uye zvimwe zvimedu zvinofamba zvakare kubva munzvimbo yepamusoro-soro kuenda kunzvimbo yekudzika pasi pedyo nekudonha.
Kugadziriswa kwemazuva ese kwe electrostatic precipitator
1. Nyatsotarisa iyo yekutanga voltage, yekutanga ikozvino, yechipiri voltage uye yechipiri ikozvino yechigadzirwa chemagetsi. Rekodha kamwe paawa imwe yega.
2. Tarisa kukwira kwekushisa kwe-high-voltage silicon rectification, tembiricha yemafuta haifanire kudarika 80 ° C, hapana ruzha rusina kujairika, uye hapana chinobuda chisina kujairika chiitiko mune yakakwira-voltage inobuda network.
3. Imwe neimwe incubator uye ash hopper hita inoshanda zvakajairika.
4. Midziyo yekudzora pane kabati yekudzora inoshanda zvakajairika.
5. Kushanda kweash discharge system kunofanirwa kunzwisiswa awa imwe neimwe.
6. Kazhinji tarisa spark rate mukati mehutano hwakatarwa, kana hukawanikwa husingasviki zvinodiwa, hunofanira kugadziriswa munguva, kuitira kuti muunganidzi weguruva muhutano hwakanaka hwekumhanya.
7. Kana muunganidzi weguruva uye midziyo yekubatsira ikatadza kana kusashanda zvakanaka panguva yekushanda kwakajairika, mushandisi achabva aenda kunosimbisa chikanganiso, kuongorora chikonzero, uye kubata kurapwa mushure mekugamuchira alarm chiziviso.
8. Kuchinja kwega kwega kunofanira kuita kuongorora kwakakwana kwemidziyo ye electrostatic precipitator, uye kuita basa rakanaka rekuchenesa basa mukati mehutongi hwechisimbiso, kunyora zvakadzama mamiriro ezvinhu asina kujairika uye kukanganisa kwemidziyo kwakaitika mukushanda kwekuchinja, uye kuita basa rakanaka rekugadzirisa kushandura.
9. Motokari, kuderedza, kubereka uye zvikamu zvose zvekunze zvinofamba zvinofanira kuongororwa kaviri pakuchinja, imwe neimwe nzvimbo yekuzora inofanira kugara ichiongororwa lubrication, kana zvichidiwa, inofanira kuwedzera mafuta ekuzora kana mafuta.
10. Tarisa uone kana iyo silicone inoshandiswa pakuomeswa yakasvibiswa, uye inofanira kutsiviwa nenguva kana yasvibiswa.
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