ʻO nā paipu kila nui (e pili ana i nā paipu kila me ke anawaena o waho ≥114mm, me ≥200mm i wehewehe ʻia he nui i kekahi mau hihia, e pili ana i nā kūlana o ka ʻoihana) hoʻohana nui ʻia i nā wahi koʻikoʻi e pili ana i "ka lawe ʻana i ka media nui," "ke kākoʻo hana kaumaha," a me nā "kūlana kiʻekiʻe" ma muli o ko lākou ikaika kiʻekiʻe.
ʻO ka ikehu ka wahi noi mua no nā paipu kila nui. ʻO nā koi koʻikoʻi e pili ana i ke kaomi kiʻekiʻe, nā mamao lōʻihi, a me ke kūpaʻa corrosion. Hoʻohana ʻia kēia mau paipu no ka lawe ʻana i nā media ikehu koʻikoʻi e like me ka aila, ke kinoea maoli, ka lanahu, a me ka uila.
1. Kaʻaila a me ke kinoea: ʻO ka "aorta" o nā paipu lōʻihi
Nā noi: ʻO nā paipu ʻaila ʻaila a me ke kinoea o waena (e like me ke West-East Gas Pipeline a me ka China-Russia East Natural Gas Pipeline), nā paipu hui kūloko a me ka lawe ʻana i loko o nā māla aila, a me nā paipu aila/gas no nā pae ʻaila a me ke kinoea.
Nā ʻAno Paipu kila: ʻO ka paipu wiliwili arc submerged arc ma mua (LSAW) a me ke kuʻi pololei i hoʻopaʻa ʻia arc welded paipu (SSAW), me ka paipu kila maʻemaʻe (e like me nā māka API 5L X80/X90) i hoʻohana ʻia i kekahi mau ʻāpana kiʻekiʻe.
Nā Manaʻo Koʻikoʻi: E kū i nā kaomi kiʻekiʻe o 10-15 MPa (nā laina kumu kinoea kūlohelohe), pale i ka ʻino ʻana o ka lepo (paipu ma kahakai), a pale aku i ka ʻinoʻino o ke kai (nā paipu o waho). Hiki i ka lōʻihi o ka paipu hoʻokahi ke hiki i ka 12-18 mika e hōʻemi i nā hui weld a hōʻemi i nā pilikia leakage. ʻO nā hiʻohiʻona maʻamau: ʻo ka China-Russia East Line Natural Gas Pipeline (ʻo ka pipeline lōʻihi loa ma Kina, me kekahi mau ʻāpana e hoʻohana ana i nā paipu kila 1422mm anawaena), a me ka paipu ʻaila ma waena o Saudi-UAE (nā paipu kila 1200mm a ʻoi aku ka nui).
2. ʻOihana Mana: ʻO ka "alai ikehu" o nā mea kanu wela/nukelea
Ma ka māhele mana wela, ua hoʻohana ʻia kēia mau paipu i nā "paipu nui ʻehā" (nā paipu mahu nui, nā paipu mahu hou, nā paipu wai hānai nui, a me nā paipu hoʻoheheʻe wela kiʻekiʻe) no ka lawe ʻana i ka wela kiʻekiʻe, kiʻekiʻe-puʻe mahu (nā wela o 300-600 ° C a me 10-30 MPa).
Ma ka ʻāpana mana nukili, pono nā paipu kila palekana no nā mokupuni nuklea (e like me nā paipu hoʻoheheʻe reactor) e koi ikaika i ka pale ʻana i ka radiation a me ke kūpaʻa kolo. Hoʻohana maʻamau ʻia nā paipu hili ʻole ʻia ʻo Austenitic stainless steel (e like me ASME SA312 TP316LN). Kākoʻo 'Ehuka Hou: "Nā Pipeline Line Collector" (pale i nā kaula uila kiʻekiʻe) ma nā kumu mana photovoltaic/ makani, a me nā pipeline hoʻoili hydrogen lōʻihi (hoʻohana kekahi mau papahana hoʻokele i nā paipu kila 300-800mm Φ corrosion-resistant).
Ke nānā aku nei nā koi i ka ʻāpana kaona i "ka kahe kiʻekiʻe, ka mālama haʻahaʻa, a me ka hoʻololi ʻana i nā kaiapuni o lalo o ke kūlanakauhale. ʻO ka pahuhopu nui e hōʻoia i ka hoʻolako wai a me ka hoʻoheheʻe wai no nā kamaʻāina a me ka hana ʻana o nā ʻōnaehana kūlanakauhale.
1. Hoʻolako Wai a me ka ʻenekinia hoʻoheheʻe wai: ʻO ka hoʻouna ʻana i ka wai o ke kūlanakauhale/nā paipu pahu wai
Nā Waiwai Waiwai: "Nā paipu wai maka" mai nā kumu wai o ke kūlanakauhale (nā wai, nā muliwai) i nā mea kanu wai, a me nā "paipu lako wai kīwila" mai nā mea kanu wai i nā kūlanakauhale, pono e lawe i ka wai kiʻekiʻe kiʻekiʻe (e laʻa, 600-2000mm Φ paipu kila).
Nā Noi Hoʻokaʻawale: "Nā paipu ʻōpala wai ʻino" o ke kūlanakauhale (no ka hoʻoheheʻe wikiwiki ʻana o ke kahe nui ʻana o ka ua nui) a me "nā paipu ʻōpala wai" (no ka lawe ʻana i ka wai ʻino o ka home/ʻoihana i nā mea kanu hoʻomaʻemaʻe). Hoʻohana kekahi i nā paipu kila kūpaʻa i ka ʻino (e laʻa, nā paipu kila i uhi ʻia i ka plastik a me nā paipu kila i hoʻopaʻa ʻia i ka pahu sima).
Nā Pōmaikaʻi: Ke hoʻohālikelike ʻia me nā paipu paʻa, māmā nā paipu kila, kūpaʻa i ka hoʻohaʻahaʻa ʻana (e hoʻololi ana i ka geology underground kaona paʻakikī), a hāʻawi maikaʻi i ka sila ʻana (pale i ka leakage a me ka lepo lepo).
2. Nā Huna Hoʻomalu Wai: Hoʻololi Wai a me ka Hoʻomalu Wai
Nā Noi: Nā papahana hoʻoili wai ma waena o ka wai (e like me ka "Yellow River Tunnel Pipeline" o ke ala waena o South-to-North Water Diversion Project), nā paipu hoʻoheheʻe a me nā paipu hoʻoheheʻe wai no nā waihona wai / wai wai, a me nā paipu auwai hoʻohuli no ka hoʻokele wai a me ka hoʻoheheʻe ʻana i ke kūlanakauhale.
Nā Koina Maʻamau: E kū i ka haʻalulu o ka wai (nā velocities kahe o 2-5 m/s), kū i ke kaomi wai (pono kekahi mau paipu wai hohonu e kū i ke kaumaha o ke poʻo ma mua o 10 m), a ʻoi aku ke anawaena ma mua o 3000 mm (e laʻa, ka 3200 mm o ka paipu hoʻololi kila ma kahi kahua wai wai).
He ʻokoʻa nā koi o ka ʻoihana ʻenehana, me ka manaʻo nui i ka "kūpono i nā kūlana kaumaha a me ka hoʻokō ʻana i nā koi o ka lawe ʻana i nā media kikoʻī," e hoʻopili ana i nā ʻoihana e like me ka metallurgy, kemika, a me nā mīkini.
1. ʻOihana Metallurgy/Steel: High-Temperature Material Transportation
Nā noi: Steel mill '" blast furnace gas pipelines " (transporting kiʻekiʻe-mehana kinoea, 200-400 ° C), "steelmaking a me ka hoʻolei hoʻomau hoʻoheheʻe wai paipu" (kiʻekiʻe-kahe hooluolu o kila billets), a me "slurry pipelines" (transporting iron ore slurry).
Koi paipu kila: Kiekie-mehana oxidation kū'ē (no ke kinoea pipelines) a me ka aahu pale 'ana (no slurries i loko o paʻa particles, aahu-kū pale kila paipu. ʻO nā anawaena maʻamau mai 200 a 1000 mm.
2. ʻOihana Kemika/Petrochemical: Corrosive Media Transport
Hoʻohana: ʻO nā pipelines waiwai i loko o nā mea kanu kemika (e like me ka waika a me ka alkali solution, nā mea hoʻoheheʻe organik), catalytic cracking unit pipelines in petrochemical plant (kiʻekiʻe-mehana, kiʻekiʻe-press aila a me ke kinoea), a me nā paipu hoʻokuʻu pahu (nui-diameter discharge pipes no nā pahu mālama nui).
ʻAno Paipu kila: Hoʻohana mua ʻia nā paipu kila hoʻoheheʻe ʻia i ka corrosion (e like me 316L stainless steel) a me ka plastic- a i ʻole nā paipu kila (no ka media corrosive nui). Hoʻohana kekahi mau paipu kiʻekiʻe kiʻekiʻe i ka 150-500mm paipu kila ʻole.
3. Nā Mīkini Kaumaha: Kākoʻo Structural a me Hydraulic Systems
Nā noi: ʻO nā pahu pahu hydraulic i nā mīkini hana (excavators a me nā cranes) (ke hoʻohana nei kekahi mau mea hana nui-tonnage 100-300mm seamless steel paipu), kākoʻo moe i nā paipu kila i nā mea mīkini nui, a me nā alapiʻi kūloko / nā paipu pale pale (150-300mm) i nā hale kiaʻi turbine makani.
Ma nā papahana hoʻolālā nui e like me nā alahaka, nā tunnels, a me nā mokulele, ʻaʻole lawelawe nā paipu kila nui ʻaʻole wale ma ke ʻano he "paipu hoʻouna" akā ʻo ia hoʻi he "mea hoʻolālā" e amo ana i nā ukana a hāʻawi i ka pale.
1. 'Enekinia Alahaka: Nā Alahaka Pi'i Pa'a Pa'a Pa'a Pa'a Pa'a Pa'a/Pier Columns
Nā noi: "Main arch ribs" o nā alahaka arch long-span (e like me ka Chongqing Chaotianmen Yangtze River Bridge, e hoʻohana ana i ka 1200-1600mm Φ i hoʻopiha ʻia i ka pahu kila i hoʻopiha ʻia me ka ʻuala, e hui pū ana i ka ikaika tensile o nā paipu kila me ka ikaika compressive o ka ʻiʻo), a me "nā piro pale pale lima lima).
Nā Pōmaikaʻi: Ke hoʻohālikelike ʻia me ka paʻa kuʻuna i hoʻopaʻa ʻia, ʻoi aku ka maʻalahi o ka hoʻopiha piha ʻana i ka pahu kila, maʻalahi ke hana (hiki ke hana mua ʻia i nā hale hana a hui ʻia ma ka pūnaewele), a ʻoi aku ka lōʻihi o ka lōʻihi (a hiki i 500 mika a ʻoi aku paha).
2. Nā Tunnels a me ke Kaʻaahi Kaʻa: Hoʻopaʻa ʻana i ke Uea
Nā Hoʻohana Tunnel: "Ventilation Ducts" (no ka ea hou, anawaena 800-1500mm) ma ke alaloa / alahao tunnels, a me "Fire Water Supply Pipes" (no ka wai kahe nui i ke ahi o ke ahi).
Rail Transit: "Underground Cable Protection Pipes" (no ka pale ʻana i nā kaula uila kiʻekiʻe, kekahi i hana ʻia me 200-400mm plastic-coated steel pipe) i loko o nā subways/high-speed rail system, a me "Catenary Column Casings" (nā kolamu kila e kākoʻo ana i ka mana mana).
3. Nā Mokulele / Awa: Nā Paipu Kūikawā
Airports: "Rainwater Drainage Pipes" (nui anawaena 600-1200mm) no ka runways e pale aku runway wai accumulation a me ka hopena ma takeoff a me ka pae ana, a me "Air Conditioning Chilled Water Main Pipes" (no kiʻekiʻe-kahe chilled wai kahe no ka mahana hoomalule) i loko o nā hale terminal.
Nā Awa: "Oil Transfer Arm Pipelines" (hoʻohui i nā pahu pahu a me nā pahu mālama, ka lawe ʻana i ka ʻaila ʻaila/ʻaila i hoʻomaʻemaʻe ʻia, ke anawaena 300-800mm) ma nā kikowaena awa, a me ka "Bulk Cargo Pipelines" (no ka lawe ʻana i ka ukana nui e like me ka lanahu a me ka ʻaila).
ʻOihana Koa: ʻO nā "paipu hoʻoluʻu wai" moku kaua (kū'ē i ka ʻinoʻino o ke kai), pahu "laina hydraulic" (nā paipu hoʻoheheʻe kiʻekiʻe kiʻekiʻe), a me ka mea hoʻolaha missile "kākoʻo i nā paipu kila."
ʻImi ʻĀina: Deepwater well "casings" (pale i ka pā punawai a pale i ka hāʻule ʻana, hoʻohana kekahi i nā paipu kila maʻemaʻe ʻole Φ300-500mm), ka ʻili ʻana o ka shale "horizontal well pipelines" (no ka hāʻawi ʻana i ka wai haʻihaʻi kiʻekiʻe).
ʻAi ʻAi ʻAi ʻAi: Ka mālama ʻana i ka wai ʻāina mahiʻai nui "nā paipu hoʻoheheʻe wai" (e like me nā paipu kumu wai kulu/sprinkler ma ka ʻāina maloʻo akau komohana, me nā anawaena o Φ200-600mm).
HUI ALII
Heluhelu
ʻO ka ʻoihana hoʻomohala ʻo Kangsheng,
ʻO ka moku ʻo Wuqing, ke kūlanakauhale ʻo Tianjin, Kina.
Kelepona
Luna Kūʻai: +86 153 2001 6383
Nā hola
Pōʻakahi-Sabati: Hana 24-hola
Ka manawa hoʻouna: Sep-19-2025