Tare da ci gaba da haɓakar filayen mai da iskar gas a cikin teku, bututun da ke jigilar adadin mai da iskar gas na cikin teku yana haɓaka.A halin yanzu shafi tsarin submarine bututun amfani da yafi 3LPE da FBE.3LPE zafin amfani na dogon lokaci gabaɗaya baya wuce 70℃, gajere har zuwa 80℃.Dangane da jigilar danyen mai zafin jiki ya wuce 80℃, Yi amfani da tsarin suturar 3LPE a fili bai dace da buƙatun fasaha ba.Yayin da dogon lokacin amfani da zafin jiki na FBE zai iya kaiwa 115℃, don saduwa da sama zane zazzabi bukatun, amma FBE shafi gaggautsa, rashin ha} uri inji lalacewa a cikin kai da kuma na waje bututu-kwanciya, anti-lalata shafi lalacewa ne mafi tsanani, A halin yanzu subsea bututu kullum ba bayar da shawarar yin amfani da lalata a cikin nau'i na daya Layer FBE.

Don yadda ya kamata magance harkokin sufuri a high zafin jiki subsea bututun lalata matsaloli, kasashen waje da aka samu nasarar 3LPP shafi tsarin zuwa bututun, kamar Gulf of Mexico zurfin ruwa subsea bututun da UK North Sea man fetur da iskar gas bututu, da dai sauransu, ana amfani da 3LPP. tsarin, amma 3LPP shafi da aka yi amfani da bututun da ke cikin teku a cikin ƙasa babu wani abin da ya gabata.

Polypropylene yana da kyawawan kaddarorin inji, yawan amfanin ƙasa, tensile, ƙarfin matsawa, taurin, elasticity da sa juriya fiye da babban yawa kuma don haka polyethylene (HDPE) babba, da kuma polypropylene mai ƙarancin ƙarancin ruwa, ruwa 24h Ruwan sha na kawai 0.01%, yayi ƙasa da HDPE.Polypropylene mai jurewa ga kwanciyar hankali sinadarai, rufin lantarki, da ƙananan yawa fiye da polyethylene.Dangane da juriya na zafi, dogon lokacin amfani da polyethylene da aka gyara a zazzabi na -30 ~ 110℃.An haɓaka 3LPP akan tushen 3LPE mai ɗaukar hoto akan kyakkyawan aikin rigakafin lalata.3LPP 3LPE ka'ida da tsari mai kama da wanda aka karɓa a cikin madaidaicin ƙarfe na fusion bonded epoxy (FBE), don ƙara mannewa zuwa karfe, a tsakiyar wani polypropylene copolymer adhesive (PPA), da kuma wani m Layer na polypropylene (PP) karfi bond, duka biyu high juriya ga inji lalacewa ikon, da kuma mai kyau juriya ga cathodic tsiri yi.3LPP wanda aka gyara ta tsarin sutura, amfani da zafin jiki sama da 110℃, da kyau kwarai juriya ga lalata da kuma high zafin jiki yi don lashe m kasuwa al'amurra, high zafin jiki shafi ba ya gyara ga sauran kasawa, don cimma a mafi girma zafin jiki da kuma nufin zurfin ruwa aikace-aikace, shi ne kunno kai mafi m anti-lalata shafi. na duniya.