He aha ka paipu HDPE & paipu paipu?

I kēia manawa, i loko o ka ʻōnaehana wai a me ka ʻōnaehana hoʻoheheʻe wai, ua hoʻololi mālie nā paipu plastik i nā paipu kuʻuna e like me nā paipu hao hao a me nā paipu kila galvanized a lilo i mau paipu nui.Ke hoʻohālikelike ʻia me nā paipu maʻamau, ʻoi aku ka maikaʻi o nā paipu plastik e like me ke kaumaha māmā, ka pale ʻana i ka corrosion, ke kahe wai haʻahaʻa, ka mālama ʻana i ka ikehu, ka maʻalahi a me ka wikiwiki o ka hoʻokomo ʻana, a me ke kumu kūʻai haʻahaʻa, a ua makemake ʻia e ka hui ʻenehana pipeline.I ka manawa like, me ka hoʻomohala wikiwiki ʻana o ka ʻoihana petrochemical a me ka holomua mau o ka ʻenehana hana plastic, ua piʻi wikiwiki ka hoʻopuka ʻana o nā paipu plastik, a ua ʻoi aku ka nui o nā ʻano huahana.Eia kekahi, ua hoʻokō nui nā paipu plastik i ka hoʻomohala nui a me ka hoʻomaikaʻi ʻana i ka manaʻo hoʻolālā a me ka ʻenehana kūkulu ʻana i ke kūkulu ʻana, a hōʻiliʻili i ka ʻike hana waiwai, ka mea i hāpai i nā paipu plastik e noho i kahi kūlana koʻikoʻi i ke kūkulu ʻana i ka wai a me ka ʻenekini wai pipeline, a hana i kahi hoʻomohala unstoppable. ʻano ʻano.
Ma Kina, ʻo ka hapa nui o nā paipu plastik i hoʻohana ʻia i nā paipu wai wai ka nui o nā paipu wai wai PVC-U, nā paipu PP-R, nā paipu alumini-plastic composite (PAP), nā paipu hui pū kila-plastic (SP), nā paipu HDPE, etc. Ua ʻike ʻia ka paipu HDPE i ka mākeke i nā makahiki ʻelua i hala.Hoʻohana ia i ka ʻenehana hana kiʻekiʻe a me ka ʻenehana a hoʻokumu ʻia e ka extrusion wela.Loaʻa iā ia nā hiʻohiʻona o ka pale ʻana i ka corrosion, ka paia i loko maʻemaʻe, ka haʻahaʻa haʻahaʻa haʻahaʻa, ka ikaika kiʻekiʻe, ka paʻakikī maikaʻi a me ke kaumaha māmā.
Ma hope o ka paipu wai wai PVC-U, ua lilo ka paipu HDPE i ka lua o nā ʻano paipu plastik i pau i ka honua.I kēia manawa, pono e hoʻohana ʻia nā paipu polyethylene medium a kiʻekiʻe paha o ka pae PE80 a me PE100 no ka lawe kinoea;ʻO nā paipu polyethylene medium a kiʻekiʻe paha o ka pae PE80 a me ka PE100 e hoʻohana mau ʻia no nā paipu wai, a ua hoʻopau ʻia ka PE63.Ma ke ʻano o ka hāʻawi ʻana i ka wai, ʻo ka wikiwiki o ka ulu ʻana ʻo PE100 pipeline system, i manaʻo ʻia e ulu aʻe ma mua o 10% i nā makahiki ʻelima e hiki mai ana.