Lihlahisoa
Anticorrosion Bakeng sa Pipeline ea Petroleum
Tlhaloso
DN50-DN1420mm
3LPE: polyethylene ea mekhahlelo e meraro
2LPE: polyethylene e nang le likarolo tse peli
FBE: phofo e le 'ngoe ea epoxy
2FBE: phofo ea epoxy e habeli
Anticorrosive Coating Botenya ba 3LPE
| DNNominal Diameter | Ho roala ka Epoxy(μm) | Adhesive Coating(μm) | Kakaretso ea Botenya ba Koahelo(mm) | |
| (mm) | Tlwaelehileng(n) | E matlafalitsoe(v) | ||
| DN≤100 | ≥120 | ≥170 | 1.8 | 2.5 |
| 100 | 2.0 | 2.7 | ||
| 250 | 2.2 | 2.9 | ||
| 500≤DN<800 | 2.5 | 3.2 | ||
| DN≥800 | 3.0 | 3.7 | ||
Liphaephe tsa liphaephe tsa oli ka kakaretso ke liphaephe tsa tšepe, tse hoketsoeng ka litšepe le li-flange le lisebelisoa tse ling tse hokelang ka lipeipi tsa sebaka se selelele, 'me li-valve li sebelisetsoa ho bula le ho koala taolo le taolo ea phallo.Lipeipi tsa oli haholo-holo li na le lipalangoang tsa isothermal, lipalangoang tse futhumatsang le lipalangoang tse latellanang le theknoloji e meng ea lipalangoang.Ho bola ha lipeipi le mokhoa oa ho thibela ho bola ke e 'ngoe ea likhokahano tsa bohlokoa tsa tlhokomelo ea lipeipi.Kaha oli e ne e e-na le sebabole le asiti, 'me phaephe e pepeselitsoe moeeng le pula, ho bonolo hore phala ena e holisoe.Pipeline corrosion haholo-holo e na le mefuta e latelang: tšepe ea oksijene ea tšepe e bakoang ke molao-motheo oa galvanic cell;Ho senyeha ha hydrogen ka lebaka la pula ea asiti e bakoang ke sulfide e nang le asiti haholo (sulfur dioxide le hydrogen sulfide) holim'a lipeipi;Ho bola ha asiti ea carbon dioxide e bakoang ke pula ea sepakapaka;Corrosion ea baktheria e bakoang ke libaktheria tse ka sebelisang sulfate holim'a lipeipi le ho bola ho bakoang ke metsi a pompong.
Peipi e sebelisoang bakeng sa liphaephe tsa oli haholo-holo ke phala ea tšepe ea carbon, e ka aroloa ka phala ea tšepe e sa tsitsang le phala ea tšepe e entsoeng ka tšepe ho latela mokhoa oa eona oa tlhahiso.Pipe ea tšepe e se nang seamless e na le litšobotsi tsa matla a phahameng, litlhaloso tse ngata, kahoo e loketse lihlahisoa tsa oli tse senyang kapa maemo a phahameng a mocheso.Seamless tšepe pipe e arotsoe ka chesang phuthoa le batang huleloa mefuta e 'meli.Hobane mokhoa o batang oa ho taka o tla baka ho thatafala ha thepa, ho boetse hoa hlokahala ho etsa phekolo e tšoanang ea mocheso ho latela tšebeliso e khethehileng ea phala.Peipi ea tšepe e cheselitsoeng e ka aroloa ka mefuta e 'meli: phala ea seam ea tšepe le phala e theolehileng.Ka lebaka la likarolo tsa ts'ebetso ea phala ea tšepe ea tšepe, mofuta ona oa phala ea tšepe o bonolo ho fetoha brittle ka mocheso o tlase, ka hona o loketse liphaephe tse tloaelehileng tsa mocheso, mocheso oa tšebeliso ea phala ha oa lokela ho feta likhato tse 300 tsa Celsius, ho bua ka kakaretso, mocheso oa tšebeliso ea phala e tloaelehileng ea tšepe ea carbon e pakeng tsa 0 le 300 degrees Celsius.Haeba tshebediso ya boleng bo phahameng carbon tšepe phala, mocheso mefuta e fapaneng le khatholoho ea - 40 ho 450 likhato Celsius.
