Injongo yeMathiriyeli yokuNgquma
Ukugquma umphezulu wemibhobho yentsimbi kubalulekile ukuthintela ukurusa.Umhlwa phezu kwemibhobho yentsimbi inokuchaphazela kakhulu ukusebenza kwayo, umgangatho, kunye nembonakalo ebonakalayo.Ngenxa yoko, inkqubo yokwaleka inefuthe elibonakalayo kumgangatho wonke weemveliso zemibhobho yentsimbi.
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Iimfuno zeMathiriyeli yokuNgquma
Ngokwemigangatho ebekwe yi-American Petroleum Institute, iipayipi zentsimbi kufuneka zixhathise ukubola ubuncinane kwiinyanga ezintathu.Nangona kunjalo, imfuno yexesha elide lokuchasana ne-rust liye landa, kunye nabasebenzisi abaninzi abafuna ukuchasana kwiinyanga ezi-3 ukuya kwezi-6 kwiimeko zokugcina ngaphandle.Ngaphandle kwemfuno yokuphila ixesha elide, abasebenzisi balindele ukuba iingubo zigcine umphezulu ogudileyo, kunye nokusasazwa kwee-anti-corrosive agents ngaphandle kokutsiba okanye ukuthontsiza okunokuchaphazela umgangatho wokubonwayo.
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Iindidi zeMathiriyeli yokuNgquma kunye nePros and Cons yazo
Kuthungelwano lwemibhobho engaphantsi komhlaba edolophini,imibhobho yentsimbizisetyenziswa kakhulu ukuthutha irhasi, ioli, amanzi, nokunye.Iingubo zale mibhobho ziye zavela kwizinto eziqhelekileyo ze-asphalt ukuya kwi-polyethylene resin kunye ne-epoxy resin.Ukusetyenziswa kwe-polyethylene resin coatings kwaqala ngo-1980, kwaye kunye nezicelo ezahlukeneyo, amacandelo kunye neenkqubo zokugquma ziye zabona ukuphuculwa kancinci kancinci.
3.1 I-Petroleum Asphalt Coating
I-petroleum asphalt coating, i-traditional anti-corrosive layer, iqulethe i-petroleum asphalt layers, iqiniswe ngelaphu le-fiberglass kunye nefilimu yangaphandle yokukhusela i-polyvinyl chloride.Ibonelela ngokugqwesileyo kokungangeni kwamanzi, ukubambelela kakuhle kwiindawo ezahlukeneyo, kunye nokusebenza kakuhle kweendleko.Nangona kunjalo, inezithintelo ezibandakanya ukungenwa kukuchaphazeleka kutshintsho lobushushu, ukuba brittle kumaqondo obushushu aphantsi, kunye nokutyekela ekugugeni kunye nokuqhekeka, ngakumbi kwiimeko zomhlaba onamatye, kufuneke amanyathelo okhuseleko ongezelelweyo kunye nokwanda kweendleko.
3.2 ICoal Tar Epoxy Coating
I-coal tar epoxy, eyenziwe nge-epoxy resin kunye ne-asphalt yamalahle, ibonisa ukuxhathisa kwamanzi kunye neekhemikhali, ukuxhathisa ukubola, ukunamathela kakuhle, amandla omatshini, kunye neempawu zokugquma.Nangona kunjalo, kufuna ixesha elide lokunyanga emva kokufakwa kwesicelo, okwenza kube lula kwiziphumo ezibi ezivela kwiimeko zemozulu ngeli xesha.Ngaphezu koko, amacandelo ahlukeneyo asetyenziswa kule nkqubo yokugquma ifuna ukugcinwa okukhethekileyo, ukunyusa iindleko.
3.3 I-Epoxy Powder Coating
I-epoxy powder coating, eyaziswa ngeminyaka yoo-1960, ibandakanya umgubo wokutshiza nge-electrostatically kumphezulu onyangwe ngaphambili kunye nobushushu bangaphambili, yenze umaleko oshinyeneyo wokuchasa umhlwa.Iingenelo zayo zibandakanya uluhlu olubanzi lweqondo lokushisa (-60 ° C ukuya kwi-100 ° C), ukunamathela okuqinileyo, ukuchasana kakuhle nokuchithwa kwe-cathodic, impembelelo, ukuguquguquka, kunye nomonakalo weld.Nangona kunjalo, ifilimu yayo encinci iyenza ukuba ichaphazeleke kumonakalo kwaye idinga ubuchule obuphezulu bokuvelisa kunye nezixhobo, ibeka imingeni ekusebenziseni intsimi.Nangona igqwesa kwiinkalo ezininzi, iyawa mfutshane xa kuthelekiswa ne-polyethylene malunga nokumelana nobushushu kunye nokukhuselwa kwe-corrosion jikelele.
3.4 iPolyethylene Anti-Corrosive Coating
I-Polyethylene inika ukuxhathisa okugqwesileyo kunye nobunzima obuphezulu kunye noluhlu olubanzi lobushushu.Ifumana ukusetyenziswa kakhulu kwimimandla ebandayo efana neRashiya kunye neNtshona Yurophu kwimibhobho ngenxa yokuguquguquka okuphezulu kunye nokuchasana kweempembelelo, ngakumbi kumaqondo aphantsi.Nangona kunjalo, imingeni ihleli kwisicelo sayo kwimibhobho yobubanzi obukhulu, apho ukunyanzeliswa koxinzelelo kunokwenzeka, kwaye ukungena kwamanzi kunokukhokelela kwi-corrosion phantsi kwengubo, efuna uphando olongezelelweyo kunye nokuphuculwa kwezinto eziphathekayo kunye neendlela zokusetyenziswa.
3.5 IiNgqungquthela eziManzi eziAnti-umhlwa
Iingubo ezinzima zokuchasa umhlwa zibonelela ngokugqithisileyo ukuxhathisa umhlwa xa kuthelekiswa neengubo eziqhelekileyo.Babonisa ukusebenza kwexesha elide nakwiimeko ezinzima, kunye nexesha lokuphila elidlula i-10 ukuya kwi-15 iminyaka kwimichiza, elwandle, nakwiimeko ezinyibilikayo, kunye neminyaka emi-5 kwiimeko ze-acidic, alkaline, okanye i-saline.Ezi zambatho zivame ukuba nobukhulu befilimu eyomileyo ukusuka kwi-200μm ukuya kwi-2000μm, iqinisekisa ukhuseleko oluphezulu kunye nokuqina.Zisetyenziswa ngokubanzi kwizakhiwo zaselwandle, izixhobo zekhemikhali, iitanki zokugcina, kunye nemibhobho.
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Imiba eqhelekileyo kunye neMathiriyeli yokuNgquma
Imiba eqhelekileyo kunye neengubo ziquka ukusetyenziswa kokungalingani, ukuthontsiza kwee-anti-corrosive agents, kunye nokwakheka kwamaqamza.
(1) Ukwaleka okungalinganiyo: Ukusasazwa okungafaniyo kwee-anti-corrosive agents kumphezulu wombhobho kubangela ukuba iindawo ezinobungqingqwa obukhulu bokugquma, okukhokelela kwinkcitho, ngelixa iindawo ezibhityileyo okanye ezingagqunywanga zinciphisa isakhono sokuchasa umbhobho.
(2) Ukuvuthwa kwee-anti-corrosive agents: Le nto, apho i-anti-corrosive agents ziqina zifana namathontsi kumphezulu wombhobho, zichaphazela ubuhle ngelixa zingachaphazeli ngokuthe ngqo ukuxhathisa ukubola.
(3) Ukuqulunqwa kwamaqamza: Umoya ovalelwe ngaphakathi kwe-anti-corrosive agent ngexesha lokufaka isicelo udala amaqamza kumphezulu wombhobho, ochaphazela zombini imbonakalo kunye nokusebenza kokwambathisa.
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Uhlalutyo lweMiba yoMgangatho wokuTyala
Yonke ingxaki ivela kwizizathu ezahlukeneyo, ibangelwa zizinto ezahlukeneyo;kunye nenqwaba yombhobho wentsimbi egxininiswe ngumgangatho wengxaki nayo inokuba yindibaniselwano yezinto ezininzi.Izizathu zokugquma okungalinganiyo zinokuthi zihlulwe ngokufanelekileyo zibe ziintlobo ezimbini, enye yinto engalinganiyo ebangelwa ukutshiza emva kokuba umbhobho wensimbi ungene kwibhokisi yokugqoka;eyesibini yinto engalinganiyo ebangelwa kukungatshizi.
Isizathu sesiganeko sokuqala ngokucacileyo kulula ukubona, kwisixhobo sokugquma xa umbhobho wentsimbi kwibhokisi yokwaleka kwi-360 ° ngeenxa zonke zemipu emi-6 (umgca we-casing unemipu eyi-12) yokutshiza.Ukuba isibhamu ngasinye sitshizwe ngaphandle kobungakanani bokuhamba sihluke, ngoko kuya kukhokelela ekusasazeni ngokungafaniyo kwe-agent anticorrosive kwiindawo ezahlukeneyo zombhobho wensimbi.
Isizathu sesibini kukuba kukho ezinye izizathu zokungalingani kokugquma ngaphandle kwento yokutshiza.Kukho iintlobo ezininzi zezinto, ezifana nombhobho wentsimbi ongenayo i-rust, uburhabaxa, ukwenzela ukuba ukugquma kunzima ukusabalalisa ngokulinganayo;umphezulu umbhobho wentsimbi inomlinganiselo woxinzelelo lwamanzi eshiywe ngasemva xa emulsion, ngeli xesha ukutyabeka ngenxa yoqhagamshelwano emulsion, ukuze isigcinakaliso kunzima ukuncamathela kumphezulu umbhobho yentsimbi, ukuze kungabikho ukutyabeka of iinxalenye zentsimbi yombhobho we-emulsion, okubangelwa ukugquma kombhobho wensimbi yonke ayifani.
(1) Isizathu sokuxhoma i-agent anticorrosive drops.I-cross-section ye-pipe yensimbi ijikelezileyo, rhoqo xa i-agent ye-anticorrosive ifafazwa phezu kombhobho wensimbi, i-anticorrosive agent kwindawo ephezulu kunye nomda uya kuqukuqela ukuya kwindawo engezantsi ngenxa ye-gravity of gravity. iyakwenza isenzeko sokuxhoma okujingayo.Into enhle kukuba kukho izixhobo ze-oven kumgca wemveliso yokwaleka kwifektri yombhobho wensimbi, onokufudumeza kwaye uqinise i-agent anticorrosive efafazwe phezu kombhobho wentsimbi ngexesha kunye nokunciphisa umbane we-anticorrosive agent.Nangona kunjalo, ukuba i-viscosity ye-anticorrosive agent ayiphezulu;akukho ukufudumeza ngexesha elifanelekileyo emva kokutshiza;okanye ubushushu bokufudumala alikho phezulu;umlomo wombhobho awukho kwimeko yokusebenza kakuhle, njl njl kuya kukhokelela kwi-anticorrosive agent ejingayo.
(2) Izinto ezibangela ukuba kubekho ugwebu olunqanda ukubola.Ngenxa yobume bendawo yokusebenza yokufuma komoya, ukusasazwa kwepeyinti kugqithise, inkqubo yokusasazwa kweqondo lobushushu kuhla kuya kubangela isenzeko esigcinayo sokugquma.Imekobume yokufuma komoya, iimeko zobushushu obuphantsi, izithinteli ezitshiziweyo ziphuma kwindawo esasazekileyo zibe ngamathontsi amancinane, ziya kukhokelela ekwehleni kobushushu.Amanzi asemoyeni anobumanzi obuphezulu emva kokuhla kweqondo lobushushu ayakujiya enze amathontsi amanzi acolekileyo adityaniswe nesithinteli, aze ekugqibeleni angene ngaphakathi kwengubo, nto leyo ekhokelela kwisenzeko sokugquma kwamadyungudyungu.
Ixesha lokuposa: Dec-15-2023