ʻO nā pahuhopu nui o ka hoʻomaikaʻi ʻana i ka hana seismic o nā pipeline lako wai ʻelua: ʻo ka mea mua e hōʻoia i ka hiki ke hoʻoili wai, e pale i kahi wahi nui o ka nalowale o ke kaomi wai, i mea e hiki ai ke hoʻolako i ka wai i ke ahi a me nā hale koʻikoʻi i ka wā pilikia; ʻO ka lua, ʻo ia ka hoʻēmi ʻana i ka pōʻino o ka pipeline e hoʻomaʻamaʻa i ka hoʻoponopono wikiwiki. I nā huaʻōlelo ʻē aʻe, i ka wā e kū ai i nā pōʻino ōlaʻi, pono i kahi ʻōnaehana lako wai ke loaʻa i kahi maʻalahi kiʻekiʻe.
He mea nui ka pale ʻana i nā haki wai nui no ka mālama ʻana i ka hana maʻamau o ka ʻōnaehana hoʻolako wai. ʻO ka ʻōnaehana paipu PE4710 (like me PE100) ka mea haʻahaʻa loa o ka haki a me ka liki ʻana o kekahi paipu wai, e kōkua ana i ka hoʻokō ʻana i nā pahuhopu āpau i luna.
ʻO ka laha ʻana o ka nalu a me ka hoʻololi mau ʻana o ka honua nā kumu nui o ka hōʻino ʻia ʻana o ka pipeline i kanu ʻia. Ma muli o ke ola ʻana o ka ikaika axial a me ke kaumaha kūlou, alakaʻi ka neʻe ʻana o ka honua i nā ʻano axial a me ke kūlou ʻana i loko o ka pipeline. ʻO nā mea me ke koʻikoʻi kiʻekiʻe (ke kaumaha ʻae ʻia kiʻekiʻe) ma ke ʻano laulā he palena palena ko lākou hiki ke hoʻololi. ʻO nā mea ductile i hōʻike ʻia e ka polyethylene (PE) (ke kaumaha ʻae ʻia haʻahaʻa) he hiki ke hoʻololi maikaʻi a me ka paʻakikī.
Hōʻike ʻia ka hiki ke seismic o ka ʻōnaehana pipeline e kona hiki ke hoʻololi i ke kaumaha o ka ʻili. Hiki i ka haʻalulu seismic a i ʻole ka laha ʻana o ka nalu seismic ke hana i ke kaumaha ma ka lepo e hōʻino ai i nā paipu palupalu loa. ʻO ka haki ʻana o nā hewa, nā ʻāina hoʻoili, ka loli ʻana o ka lepo i ka lepo a me ka hopena o ka noho ʻana a/a i ʻole ka pālahalaha ʻana o ka ʻaoʻao, ka emi ʻana o ka lepo a me ka piʻi ʻana o ka lepo e hoʻonui ai i ke kaumaha o ka honua, e hopena ana i ka hōʻino ʻana i nā wahi nui o nā pipelines i kanu ʻia. Papa inoa ka Papa B-1 i nā ʻikepili kaumaha o ka honua i ʻike ʻia a puni ka honua ma muli o ka hoʻololi mau ʻana o ka honua.
Papa B-1 Ka ʻeha o ka honua i ʻike ʻia ma muli o ka hoʻololi mau ʻana o ka honua
ʻO ka pae i koi ʻia o ke kaumaha honua no nā pipelines ma waena o 0.05% a me 4.5%. Ma kahi hōʻike 2008 na ka American Electric Power Research Institute, ua hāʻawi ʻia nā ana o ka hiki ke kaumaha o ka mea PE4710. Ma ka mahana 50°F (10°C), ʻo ka awelika o ke kaumaha tensile o ka paipu PE4710 he 9.9%, ʻoiai ʻo ka awelika o ke kaumaha tensile hope loa he 206%. E neʻe ka paipu polyethylene i ka pane ʻana i ka neʻe ʻana o ka honua, ma mua o ke kūʻē ʻana i nā ukana e hiki ai ke haki nā paipu paʻa a palupalu paha. I ka hapa nui o nā hanana seismic, e kūlou ka paipu polyethylene density kiʻekiʻe (welded) i hoʻopaʻa ʻia, akā ʻaʻole e haki a hoʻokaʻawale paha (pilina sila ʻole), no laila e mālama ana i kahi lako wai maʻamau. Pono e hoʻomaopopo ʻia e hiki ke kau ʻia nā pilina āpau o nā paipu PE me nā hale ʻē aʻe, nā hale kōkua a me nā ʻāpana i nā ukana ʻokoʻa kiʻekiʻe. Pono e hoʻolālā pono ʻia a hoʻolālā ʻia ka pilina o kēia mau ʻāpana e hōʻemi i ka pilikia o ka haki ʻana.
ʻO ke kaumaha tensile yield o ka paipu PE4710 ma kahi o ʻelua manawa o ke kaumaha honua i hoʻokumu ʻia e ka nui loa i ʻike ʻia, a ʻo ke kaumaha hope loa o PE4710 ma mua o 40 mau manawa o ke kaumaha honua kiʻekiʻe. ʻO ka hana i loaʻa ma o ka helu kumumanaʻo e kūlike me ka hoʻohana ʻana i ka pipeline polyethylene i ka ōlaʻi. Ua hana maikaʻi ka laina lako wai HDPE i hoʻopaʻa ʻia i ka ōlaʻi. Hāʻawi ka Papa B-2 i nā nānā hapa o nā ōlaʻi i hala ma Iapana (Omuro lāua ʻo Himono, 2018).
Papa B-2 ʻIkepili i ʻike ʻia i nā wā o nā ōlaʻi i hala ma Iapana
Pono e loiloi ʻia ka hana seismic o nā pipelines, me ka paʻakikī, ka hiki ke hoʻopaʻa ʻia e ke axial, ka radius kūlou i ʻae ʻia, ka ikaika o ka hui ʻana, ke kūpaʻa a me ke kūlana o ka pipeline e kū nei. Hōʻike ka nui o nā ʻike seismic e hiki i nā pipelines nui hoʻolako wai HDPE e like me nā kūlana moʻo paipu ASTM ke mālama i ka hana maʻamau ma lalo o ka hapa nui o nā kūlana ukana seismic. Ke kiʻekiʻe nā koi hana seismic o ka paipu nui hoʻolako wai, pono e noʻonoʻo ʻia ka hoʻohana ʻana i nā paipu HDPE i hoʻopaʻa ʻia, no ka mea, ʻoi aku ka hilinaʻi o ka hana seismic o nā paipu HDPE, a hiki iā lākou ke hoʻololi i nā ʻano like ʻole o ka honua i hana ʻia e nā ōlaʻi a mālama i ka hana maʻamau.
CHUANGRONGis a share industry and trade integrated company, established in 2005 which focused on the production of HDPE Pipes, Fittings & Valves, PPR Pipes, Fittings & Valves, PP compression fittings & Valves, and sale of Plastic Pipe Welding machines, Pipe Tools, Pipe Repair Clamp and so on. If you need more details, please contact us +86-28-84319855, chuangrong@cdchuangrong.com, www.cdchuangrong.com
Ka manawa hoʻouna: Malaki-06-2025
