Ipayipi lensimbi lomthungo eliqondile liyinqubo yokushisela ipayipi lensimbi eliphambene nepayipi lensimbi elivunguzayo. Inqubo yokushisela yalolu hlobo lwepayipi yensimbi ilula, izindleko zokushisela ziphansi, futhi zingakwazi ukufeza ukusebenza kahle okukhulu ngesikhathi sokukhiqiza, ngakho-ke kuvamile emakethe. Futhi iwumkhiqizo osetshenziswa kabanzi, ngakho yiziphi izinzuzo zayo?

Lolu hlobo lwepayipi lensimbi lushiselwe kusetshenziswa indlela yokushisela ehambisana nesiqondiso se-longitudinal yepayipi lensimbi, futhi lisetshenziswa kabanzi. Ngobubanzi nobude obufanayo, ubude bokushisela bamapayipi ensimbi othungelwano oluqondile buncane kakhulu, kuyilapho ubude bokushisela bamapayipi ensimbi avunguzayo bungase bukhuphuke ngaphezu kuka-30%. Ngenxa yezizathu zenqubo ngesikhathi sokushisela, ukusebenza kahle kuphansi futhi okukhiphayo nakho kuphansi kakhulu. Kodwa endaweni efanayo engenalutho, amapayipi ashiselwe ku-spiral ngokuvamile angakhiqizwa ngobubanzi obuhlukahlukene. Ngokuphambene, amapayipi ensimbi aqondile awakwazi ukufeza lo mphumela we-welding.

Amapayipi ensimbi aqondile asetshenziswa kabanzi emakethe ngenxa yezici zawo. Njengoba izindleko zenqubo esetshenziswa ngesikhathi sokushisela ziphansi uma kuqhathaniswa, futhi izinqubo zokukhiqiza insimbi eyenziwe ngomgunyathi, i-extrusion, rolling, kanye nensimbi yokudweba ingakhiqizwa, futhi imininingwane nayo iqinisekile, ihlinzeka ngezinhlelo eziningi zokusebenza. kungenzeka. Ezweni lakithi, imboni ye-petrochemical, imboni yobunjiniyela bokuhlinzekwa kwamanzi, ukwakhiwa kwamadolobha, ubunjiniyela bamandla, njll. konke kunesidingo samapayipi ensimbi aqondile.

Imakethe yamapayipi ensimbi ashiselwe ngomthungo oqondile ibisesimweni esibuthakathaka noma esiwayo, futhi ukwehla kunzima ukukushintsha. Kuyaqondakala ukuthi nakuba manje sekuyisikhathi esivamile sokusetshenziswa emakethe yensimbi, isidingo esiphansi somfula kanye nesiphetho kunzima ukusikhulula kakhulu, futhi amandla okusebenzisa amapayipi ensimbi ashiselwe ngomthungo oqondile abuthakathaka, okuholela ekuntulekeni kokusekela okuhle. izici zamanani. Ngokufika kwakamuva kwezinsiza ezintsha emakethe, isimo sokucaciswa kokungalingani kwezinye izindawo sesehlile kancane. Abathengisi abanempahla eyanele ngokwanele basagxile ekuthunyelweni, kuyilapho abathengisi abaningi abanempahla ephansi bekhetha ukulinda futhi babone okwamanje. Ngenhlanhla, ukuqina kwamanje kwe-liquidity emakethe yamapayipi ensimbi ashiselwe othungelwe kagesi akuphezulu, futhi akukakakwazi ukwenza ukucindezela okukhulu kumkhuba wamanani. Emakethe yamapayipi ensimbi kagesi ashiselwe emthungo oqondile, ukuthi intengo ikhula kanjani kufanele ekugcineni ibuyele ezingeni lesidingo langempela. Uma kucatshangelwa ukuthi ukuthengiswa kwemakethe kwakamuva kusenesimo sezulu esishisayo, ngesaba ukuthi kusenengozi ephansi yamanani, kodwa ubukhulu ngeke bube bukhulu.