1. Ukwakheka kunye nezinto eziphambili zegesi yenkunkuma yepeyinti yokutshiza
Inkqubo yokupenda isetyenziswa kakhulu koomatshini, iimoto, izixhobo zombane, izixhobo zasekhaya, iinqanawa, ifenitshala kunye neminye imimandla.
Ipeyinti yezinto ezikrwada —— ipeyinti yenziwe ngezinto ezingaguqukiyo neziguquguqukayo, ezingaguqukiyo kuquka izinto zefilimu kunye nezinto zefilimu ezincedisayo, iarhente yokuxutywa eguquguqukayo isetyenziselwa ukuxuba ipeyinti, ukufezekisa injongo yomphezulu wepeyinti ogudileyo nomhle.
Inkqubo yokutshiza ipeyinti ikakhulu ivelisa inkungu yepeyinti kunye nongcoliseko lwegesi yenkunkuma yendalo, ipeyinti phantsi kwesenzo soxinzelelo oluphezulu ibe ngamasuntswana, xa itshiza, inxalenye yepeyinti ayizange ifikelele kumphezulu wokutshiza, isasazwa ngokuhamba komoya ukuze kwenziwe inkungu yepeyinti; igesi yenkunkuma yendalo evela ekuguqukeni kwe-diluent, isinyibilikisi sendalo asincamatheliswanga kumphezulu wepeyinti, ipeyinti kunye nenkqubo yokunyanga iya kukhupha igesi yenkunkuma yendalo (kuxelwe ukuba amakhulu eekhompawundi zendalo eziguquguqukayo, ngokulandelelanayo zeze-alkane, ii-alkanes, i-olefin, iikhompawundi ze-aromatic, utywala, i-aldehyde, ii-ketones, i-ester, i-ether, kunye nezinye iikhompawundi).
2. Umthombo kunye neempawu zegesi yokukhupha umoya egqunywe ziimoto
Iworkshop yokupeyinta iimoto kufuneka iqhube unyango lwangaphambi kokupenda, i-electrophoresis kunye nepeyinti yokutshiza kwindawo yokusebenza. Inkqubo yokupeyinta ibandakanya ukupeyinta ngokutshiza, ukuhamba kunye nokomisa, kwezi nkqubo kuya kuvelisa igesi yenkunkuma yendalo (ii-VOC) kunye ne-spray yokutshiza, ngoko ke ezi nkqubo kufuneka zipeyinte igumbi ngegesi yenkunkuma.
(1) Igesi engcolileyo esuka kwigumbi lokutshiza ipeyinti
Ukuze kugcinwe imeko yokusebenza yokutshiza, ngokwemigaqo yoMthetho woKhuseleko lwezeMisebenzi kunye nezeMpilo, umoya kufuneka utshintshwe rhoqo kwigumbi lokutshiza, kwaye isantya sokutshintsha komoya kufuneka silawulwe ngaphakathi koluhlu lwe (0.25 ~ 1) m/s. Ulwakhiwo oluphambili lwegesi yokukhupha umoya sisinyibilikisi sendalo sepeyinti yokutshiza, izinto zayo eziphambili zii-hydrocarbons ezinuka kamnandi (i-benzene ezintathu kunye ne-non-methane iyonke ye-hydrocarbon), i-alcohol ether, i-ester organic solvent, kuba umthamo wokukhupha umoya kwigumbi lokutshiza mkhulu kakhulu, ngoko ke uxinzelelo olupheleleyo lwegesi yenkunkuma yendalo ekhutshiweyo luphantsi kakhulu, luhlala lumalunga ne-100 mg/m3. Ukongeza, ukukhupha umoya kwigumbi lokutshiza kudla ngokuba nenani elincinci lenkungu yepende enganyangwanga ngokupheleleyo, ngakumbi igumbi lokutshiza lokutshiza lokupenda owomileyo, inkungu yepende kwi-exhaust, inokuba ngumqobo kunyango lwegesi yenkunkuma, unyango lwegesi yenkunkuma kufuneka lube lunyango lwangaphambi konyango.
(2) Igesi engcolileyo evela kwigumbi lokomisa
Ipeyinti yobuso emva kokutshiza ngaphambi kokuba yome, umoya ufuna ukugeleza, ipeyinti emanzi ifilimu yesinyibilikisi yendalo kwinkqubo yokomisa i-volatilized, ukuze kuthintelwe ingozi yokuqhuma kwengozi yokudibanisa i-organic solvent, igumbi lomoya kufuneka libe nomoya oqhubekayo, ukutshintsha isantya somoya ngokubanzi kulawula malunga ne-0.2 m/s, ukwakheka kwe-exhaust exhaust kunye nokwakheka kwe-exhaust exhaust exhaust exhaust exhaust, kodwa ayinayo inkungu yepeyinti, uxinzelelo olupheleleyo lwegesi yenkunkuma yendalo kunegumbi lokutshiza, ngokutsho komthamo we-exhaust e ...
(3)Digesi yokukhupha umoya evuthayo
Ukwakheka kwegesi yenkunkuma yokomisa kuyinkimbinkimbi ngakumbi, ukongeza kwi-organic solvent, inxalenye ye-plasticizer okanye i-resin monomer kunye nezinye izinto eziguquguqukayo, kodwa ikwaqulethe iimveliso zokubola kobushushu, iimveliso zokusabela. I-electrophoretic primer kunye ne-solvent type topcoat drying zine-exhaust gas discharge, kodwa ukwakheka kwayo kunye nomahluko wayo mkhulu.
※Iingozi zegesi yokukhupha umoya ephuma kwipeyinti yokutshiza:
Kuyaziwa ngokohlalutyo ukuba igesi engcolileyo evela kwigumbi lokutshiza, igumbi lokomisa, igumbi lokuxuba ipeyinti kunye negumbi lokucoca amanzi amdaka epeyinti ephezulu inoxinzelelo oluphantsi kunye nokuhamba okukhulu, kwaye izinto eziphambili zongcoliseko zii-hydrocarbons ezinuka kamnandi, ii-alcohol ethers kunye nezinyibilikisi ze-ester organic. Ngokwe-"Comprehensive Emission Standard for Air Pollution", uxinzelelo lwale gesi inkunkuma ngokubanzi lungaphakathi komda wokukhupha. Ukuze kuhlangatyezwane neemfuno zesantya sokukhupha umoya kumgangatho, uninzi lweefektri zeemoto zisebenzisa indlela yokukhupha umoya kwindawo ephakamileyo. Nangona le ndlela inokuhlangabezana nemigangatho yokukhupha umoya yangoku, kodwa igesi engcolileyo ayinyangwanga, kwaye isixa siphela songcoliseko lwegesi olukhutshwa ngumgca omkhulu wokufaka umzimba sinokuba phezulu ukuya kumakhulu eetoni, nto leyo ebangela umonakalo omkhulu emoyeni.
Inkungu yokupenda kwi-organic solvent —— benzene, toluene, xylene sisinyibilikisi esinamandla esinobuthi, esisebenza emoyeni kwindawo yokusebenzela, abasebenzi emva kokuphefumla indlela yokuphefumla banokubangela ubuthi obukhawulezileyo nobungapheliyo, ikakhulu babangela umonakalo kwinkqubo ye-nervous central kunye ne-hematopoietic, ukuphefumla ixesha elifutshane uxinaniso oluphezulu (ngaphezulu kwe-1500 mg/m3) yomphunga we-benzene, kunokubangela i-aplastic anemia, rhoqo ukuphefumla uxinaniso oluphantsi lomphunga we-benzene kunokubangela nokugabha, iimpawu ze-neurological ezifana nokudideka.
※Ukukhetha indlela yokunyanga igesi emdaka kwipeyinti yokutshiza kunye nokwaleka:
Xa kukhethwa iindlela zonyango lwezinto eziphilayo, kufuneka kuqwalaselwe ezi zinto zilandelayo ngokubanzi: uhlobo kunye noxinzelelo lwezinto eziphilayo ezingcolisayo, ubushushu bokukhupha umoya kwi-organic kunye nesantya sokuhamba kokukhupha, umxholo wezinto ezincinci, kunye nenqanaba lolawulo longcoliseko ekufuneka lifezekiswe.
1Sunyango lokupenda ngomthandazo kubushushu begumbi
Igesi yokukhupha umoya evela kwigumbi lokupeyinta, igumbi lokomisa, igumbi lokuxuba ipeyinti kunye negumbi lokucoca amanzi amdaka e-topcoat yigesi yokukhupha umoya ebushushu begumbi enoxinzelelo oluphantsi kunye nokuhamba okukhulu, kwaye ulwakhiwo oluphambili lwezinto ezingcolisayo yi-aromatic hydrocarbons, utywala kunye nee-ethers kunye ne-ester organic solvents. Ngokwe-GB16297 “Comprehensive Emission Standard for Air Pollution”, uxinzelelo lwale gesi inkunkuma luhlala lungaphakathi komda wokukhupha umoya. Ukuze kuhlangatyezwane neemfuno zesantya sokukhupha umoya kumgangatho, uninzi lweefektri zeemoto zisebenzisa indlela yokukhupha umoya kwindawo ephakamileyo. Nangona le ndlela inokuhlangabezana nemigangatho yokukhupha umoya yangoku, kodwa igesi engcolileyo ngokuyintloko ikhutshwa ngaphandle konyango, kwaye isixa siphela sokungcola kwegesi esikhutshwa ngumgca omkhulu wokubopha umzimba sinokuba phezulu ukuya kumakhulu eetoni, nto leyo ebangela umonakalo omkhulu emoyeni.
Ukuze kuncitshiswe ngokusisiseko ukukhutshwa kwezinto ezingcolisa umoya, iindlela ezininzi zonyango lwegesi ephumayo zingasetyenziswa kunye kunyango, kodwa iindleko zonyango lwegesi ephumayo enomthamo ophezulu womoya ziphezulu kakhulu. Okwangoku, indlela ekhulileyo yangaphandle kukuqala ngokugxila (ngevili lokutsalwa-ukutsalwa ukuze kugxilwe inani lilonke elimalunga ne-15), ukuze kuncitshiswe inani lilonke eliza kunyangwa, uze emva koko usebenzise indlela etshabalalisayo ukunyanga igesi engcolileyo exineneyo. Kukho iindlela ezifanayo eTshayina, indlela yokuqala yokusebenzisa i-adsorption (i-activated carbon okanye i-zeolite njenge-adsorbent) yoxinzelelo oluphantsi, i-air conditioner spray paint waste gas adsorption, kunye ne-high temperature desorption gas, i-concentrated waste gas esebenzisa i-catalytic combustion okanye i-regenerative thermal combustion method yonyango. Uxinzelelo oluphantsi, i-normal temperature spray waste gas treatment method iyaphuhliswa, iteknoloji yasekhaya okwangoku ayivuthwanga, kodwa kufanelekile ukuyinika ingqalelo. Ukuze sinciphise ngokwenene ungcoliseko loluntu lwegesi emdaka yokugquma, kufuneka sisombulule ingxaki evela kumthombo, njengokusetyenziswa kweekomityi ezijikelezayo ze-electrostatic kunye nezinye iindlela zokuphucula izinga lokusetyenziswa kweengubo, uphuhliso lweengubo ezisekelwe emanzini kunye nezinye iingubo zokukhusela okusingqongileyo.
2Dunyango lwegesi yenkunkuma
Igesi yenkunkuma yokomisa imele ukuba yeyoxinzelelo oluphakathi noluphezulu lwegesi yenkunkuma enobushushu obuphezulu, efanelekileyo kwindlela yokutsha. Isiphumo sokutsha sineeparameter ezintathu ezibalulekileyo: ixesha, ubushushu, ukuphazamiseka, oko kukuthi, ukutsha kweemeko ze-3T. Ukusebenza kakuhle konyango lwegesi yenkunkuma ngokusisiseko kumlinganiselo owaneleyo wempendulo yokutsha kwaye kuxhomekeke kulawulo lwemeko ye-3T yempendulo yokutsha. I-RTO inokulawula ubushushu bokutsha (820 ~ 900℃) kunye nexesha lokuhlala (1.0 ~ 1.2s), kwaye iqinisekise ukuba ukuphazamiseka okufunekayo (umoya kunye nezinto eziphilayo zixubene ngokupheleleyo), ukusebenza kakuhle konyango kufikelela kwi-99%, kwaye izinga lobushushu benkunkuma liphezulu, kwaye ukusetyenziswa kwamandla okusebenza kuphantsi. Uninzi lweefektri zeemoto zaseJapan eJapan naseTshayina zihlala zisebenzisa i-RTO ukunyanga igesi yokukhupha umoya yokomisa (i-primer, i-medium coating, i-top coat drying). Umzekelo, umgca we-coating wemoto yabakhweli beDongfeng Nissan Huadu osebenzisa i-RTO centralized treatment of coating drying gas exhaust effect ulungile kakhulu, uhlangabezana ngokupheleleyo neemfuno zemigaqo yokukhupha umoya. Nangona kunjalo, ngenxa yotyalo-mali olukhulu lwexesha elinye lwezixhobo zonyango lwegesi yenkunkuma ye-RTO, ayibizi kakhulu unyango lwegesi yenkunkuma enokuhamba kancinci kwegesi yenkunkuma.
Kumgca wokuvelisa i-coating ogqityiweyo, xa kufuneka izixhobo ezongezelelweyo zonyango lwegesi yenkunkuma, inkqubo yokutshisa i-catalytic kunye nenkqubo yokutshisa ubushushu obuvuselelayo zingasetyenziswa. Inkqubo yokutshisa i-catalytic inotyalo-mali oluncinci kwaye isetyenziswa kancinci ngamandla okutshisa.
Ngokubanzi, ukusetyenziswa kwe-/platinum njenge-catalyst kunokunciphisa ubushushu be-oxidizing uninzi lwegesi yenkunkuma yendalo ukuya kwi-315℃. Inkqubo yokutsha ye-Catalytic ingasetyenziselwa unyango lwegesi yenkunkuma yokomisa ngokubanzi, ngakumbi efanelekileyo kumbane wokomisa usebenzisa amaxesha okufudumeza ngombane, ingxaki ekhoyo kukuba ungakuphepha njani ukungaphumeleli kwetyhefu ye-catalyst. Ngokwemava abanye abasebenzisi, kwigesi yenkunkuma yokomisa ipeyinti yomphezulu ngokubanzi, ngokwandisa ukuhluzwa kwegesi yenkunkuma kunye nezinye iindlela, kunokuqinisekisa ukuba ubomi be-catalyst buyiminyaka emi-3 ukuya kwemi-5; igesi yenkunkuma yokomisa ipeyinti ye-electrophoretic kulula ukuyibangela ityhefu ye-catalyst, ngoko ke unyango lwegesi yenkunkuma yokomisa ipeyinti ye-electrophoretic kufuneka luqaphele ngokusebenzisa i-catalytic combustion. Kwinkqubo yokunyanga igesi yenkunkuma kunye nokuguqulwa komgca wokugquma umzimba wesithuthi sorhwebo saseDongfeng, igesi yenkunkuma yokomisa i-electrophoretic primer iphathwa ngendlela ye-RTO, kwaye igesi yenkunkuma yokomisa ipeyinti ephezulu iphathwa ngendlela ye-catalytic combustion, kwaye isiphumo sokusebenzisa silungile.
※Inkqubo yonyango lwegesi yenkunkuma yokupeyinta ipeyinti yokutshiza:
Inkqubo yonyango lwegesi yenkunkuma yokutshiza isetyenziselwa ikakhulu unyango lwegesi yenkunkuma yokupeyinta igumbi, unyango lwegesi yenkunkuma yefenitshala kwifektri, unyango lwegesi yenkunkuma yeshishini lokuvelisa oomatshini, unyango lwegesi yenkunkuma yefektri yokukhusela, ukwenziwa kweemoto kunye nonyango lwegesi yenkunkuma yepeyinti yegumbi lemoto i-4S shop. Okwangoku, kukho iinkqubo ezahlukeneyo zonyango, ezinje: indlela yokufunxa, indlela yokufunxa, indlela yokutsha, indlela yokulungisa, indlela yokufunxa, indlela yebhayoloji kunye nendlela ye-ion.
1. Windlela yokutshiza ngamanzi + ukufunxwa kwekhabhoni esebenzayo kunye nokufunxwa kwayo + ukutsha kwe-catalytic
Ukusebenzisa inqaba yokutshiza ukususa inkungu yepeyinti kunye nezinto ezinyibilikayo emanzini, emva kwesihluzo esomileyo, kwisixhobo sokufunxa ikhabhoni esebenzayo, njengokufunxa ikhabhoni esebenzayo ngokupheleleyo, emva koko ukufunxa (indlela yokufunxa ngomphunga, ukufudumeza ngombane, ukufunxa initrogen), emva kokukhupha igesi (uxinzelelo lwanda amaxesha amaninzi) ngokufunxa ifeni kwisixhobo sokufunxa esibizwa ngokuba yi-catalytic combustion device, ukufunxa kube yi-carbon dioxide namanzi, emva kokukhupha.
2. Wisitshizi samanzi + ukufunxwa kwekhabhoni esebenzayo kunye nokufunxwa kwayo + indlela yokubuyisela ukufuma
Ukusebenzisa inqaba yokutshiza ukususa inkungu yepeyinti kunye nezinto ezinyibilikayo emanzini, emva kwesihluzo esomileyo, kwisixhobo sokufunxa ikhabhoni esebenzayo, njenge-activated carbon adsorption epheleleyo, emva koko ukuya ekuphupheni (indlela yokufunxa ngomphunga, ukufudumeza ngombane, ukufunxa i-nitrogen), emva kokucubungula i-condensation yegesi yenkunkuma, ukufunxa ngokwahlulahlula ukubuyiswa kwezinto eziphilayo ezixabisekileyo. Le ndlela isetyenziselwa unyango lwegesi yenkunkuma enoxinzelelo oluphezulu, ubushushu obuphantsi kunye nomthamo womoya ophantsi. Kodwa le ndlela isetyenziselwa utyalo-mali, ukusetyenziswa kwamandla aphezulu, iindleko zokusebenza, igesi yokufunxa ipeyinti "i-benzene ezintathu" kunye noxinzelelo lwegesi yokuphuma umoya ngokubanzi iphantsi kune-300 mg/m3, uxinzelelo oluphantsi, umthamo womoya omkhulu (umthamo womoya we-workshop yokwenziwa kwepeyinti yemoto rhoqo ngaphezulu kwe-100000), kwaye ngenxa yokuba ukwakheka kwe-organic coating exhaust exhaust organic solvent, i-recycling solvent kunzima ukuyisebenzisa, kwaye kulula ukuvelisa ungcoliseko lwesibini, ngoko ke ukufunxa kunyango lwegesi yenkunkuma ngokubanzi akuyisebenzisi le ndlela.
3. Windlela yokufunxa igesi ye-aste
Ukufunxwa kwegesi yenkunkuma yepeyinti yokutshiza kunokwahlulwahlulwa kube kukufunxwa kweekhemikhali kunye nokufunxwa ngokwasemzimbeni, kodwa umsebenzi weekhemikhali zegesi yenkunkuma "ezintathu zebenzene" uphantsi, ngokubanzi awusebenzisi ukufunxwa kweekhemikhali. Ulwelo olufunxwa ngokwasemzimbeni lufunxwa kancinci, kwaye lufunxwa izinto ngokuqina okuphezulu kokufudumeza, ukupholisa kunye nokusetyenziswa kwakhona ekuhlalutyeni ukufunxwa komthamo. Le ndlela isetyenziselwa ukufuduka komoya, ubushushu obuphantsi, kunye noxinzelelo oluphantsi. Ufakelo luyinkimbinkimbi, utyalo-mali lukhulu, ukhetho lolwelo lokufunxwa lunzima ngakumbi, kukho ungcoliseko olubini.
4. Aisixhobo sokufunxa ikhabhoni esivuselelweyo + izixhobo zokufunxa i-UV photocatalytic oxidation
(1): ngqo ngokusebenzisa i-activated carbon activated direct adsorption yegesi yendalo, ukufikelela kwizinga lokucocwa kwe-95%, izixhobo ezilula, utyalo-mali oluncinci, ukusebenza okulula, kodwa kufuneka kuthathelwe indawo i-activated carbon rhoqo, ukuxinana okuphantsi kongcoliseko, akukho kubuyiselwa. (2) Indlela ye-adsorption: igesi yendalo kwi-activated carbon adsorption, i-activated carbon saturated air desorption kunye nokuvuselelwa.
5.Aukufunxwa kwekhabhoni evuselelweyo + izixhobo zeplasma ezishushu kakhulu
Emva kokuba i-activated carbon adsorption kuqala, emva koko nge-plasma eshushu ephantsi, igesi yenkunkuma yokucubungula i-plasma iya kunyanga umgangatho wokukhutshwa kwegesi, indlela ye-ion kukusebenzisa i-plasma Plasma (ION plasma) ukuchithwa kwegesi yenkunkuma yendalo, ukususa ivumba elibi, ukubulala iintsholongwane, ukucoca umoya luthelekiso oluphezulu lwamazwe ngamazwe, iingcali zasekhaya nakwamanye amazwe zibizwa ngokuba yenye yezobuchwepheshe ezine eziphambili zesayensi yendalo kwinkulungwane yama-21. Isitshixo seteknoloji kukukhutshwa kwe-voltage ephezulu ye-pulse medium block ngendlela yenani elikhulu le-ion oxygen esebenzayo (plasma), ukusebenza kwegesi, ukuvelisa zonke iintlobo zee-free radicals ezisebenzayo, ezifana ne-OH, HO2, O, njl.njl., i-benzene, i-toluene, i-xylene, i-ammonia, i-alkane kunye nezinye iigesi zenkunkuma yendalo, i-oxidation kunye nezinye iimpendulo zomzimba kunye neekhemikhali ezintsonkothileyo, kunye nemveliso engekho yingozi, ukuphepha ungcoliseko lwesibini. Le teknoloji ineempawu zokusetyenziswa kwamandla aphantsi kakhulu, indawo encinci, ukusebenza okulula kunye nokugcinwa, kwaye ifanelekile ngakumbi kunyango lweegesi ezahlukeneyo zecandelo.
Bisishwankathelo sengxaki:
Ngoku kukho iintlobo ezininzi zeendlela zonyango ezithengiswayo, ukuze sihlangabezane nemigangatho yonyango yesizwe neyengingqi, sihlala sikhetha iindlela ezahlukeneyo zonyango ezidityanisiweyo ukunyanga igesi emdaka, ukuze sikhethe ngokuhambelana nenkqubo yabo yonyango yokwenyani.
Ixesha lokuthumela: Disemba-28-2022
