Ka hoʻohana ʻana i nā paipu kila kila i ka ʻaila a me ka ʻoihana petrochemical

Ka hoʻohana ʻana i nā paipu kila kila i ka ʻaila a me ka ʻoihana petrochemical

Hiki ke hoʻokaʻawale ʻia ke kila kila e like me ke kinikini Cr, CR-Ni stainless steel, CR-Ni-Mo stainless steel, e like me ke kahua noi hiki ke hoʻokaʻawale ʻia i loko o ke kila kila kila, ke kila kila kūwaho, anti- kila kuhiliʻi hoʻohāhā, Cl – kila kuhiliʻole.Akā ʻo ka mea maʻamau i hoʻohana ʻia e like me ke ʻano o ke kila e hoʻokaʻawale, maʻamau hiki ke hoʻokaʻawale ʻia i ke kila kila ferritic, austenitic stainless steel, martensitic stainless steel, duplex stainless steel and precipitation hardening stainless steel.I ka ʻaila a me ka petrochemical noi, austenitic stainless steel, ferritic stainless steel a me duplex stainless steel account no ka hapa nui.
Ferritic kuhiliʻole kila Cr maʻiʻo ma ka laulā ma waena o 13% -30%, C maʻiʻo maʻamau emi ma mua o 0.25%, ma o annealing a elemakule, carbide i loko o ka ferritic palaoa palena precipitation, i mea e hoʻokō corrosion kū'ē.ʻO ka ʻōlelo maʻamau, ʻoi aku ka haʻahaʻa o ka corrosion o ka ferritic stainless steel ma mua o ka austenitic stainless steel a me ka duplex steel, akā ʻoi aku ka kiʻekiʻe ma mua o ke kila stainless martensitic.Akā ma muli o kāna kumu kūʻai haʻahaʻa i hoʻohālikelike ʻia me nā kila kila ʻē aʻe, no laila, i ka noi kemika a me ka petrochemical, no ka corrosion resistant medium a me nā koi ikaika ʻaʻole kiʻekiʻe i ke kahua o ka noi.E like me ka aila sulfur, hydrogen sulfide, lumi wela nitric acid, carbonic acid, hydrogen ammonia mother liquor, urea production of high-temperature ammonia, urea mother liquor a me vinylon production o vinyl acetate, acrylonitrile a me nā wahi ʻē aʻe.

ʻO ka maʻiʻo Cr maʻamau o ke kila kila martensitic ma waena o 13% -17%, a ʻoi aku ka kiʻekiʻe o ka ʻike C, ma waena o 0.1% a me 0.7%.Loaʻa iā ia ka ikaika kiʻekiʻe, ka paʻakikī a me ke kūpaʻa ʻana, akā ʻoi aku ka haʻahaʻa o ka corrosion.Hoʻohana nui ʻia ia i ka ʻaila a me ka petrochemical i loko o ke kaiapuni kahi i ikaika ʻole ai ka corrosive medium, e like me ka paʻakikī kiʻekiʻe a me nā mea hoʻouka hopena, e like me nā ʻāpana turbine mahu, bolts a me nā ʻāpana a me nā mea e pili ana.

ʻO ka maʻiʻo o Cr i ke kila kila austenitic ma waena o 17% -20%, ʻo ka maʻiʻo o Ni ma waena o 8% -16%, a ʻo ka ʻike o C he haʻahaʻa ma mua o 0.12%.Hiki ke loaʻa ke ʻano austenitic ma ka lumi wela ma ka hoʻohui ʻana iā Ni e hoʻonui i ka wahi hoʻololi austenitic.ʻO Austenitic stainless steel corrosion resistance, plasticity, toughness, processing performance, welding performance, haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa i hoʻohālikelike ʻia me nā kila kila ʻē aʻe ʻoi aku ka maikaʻi loa, no laila ʻoi aku ka maikaʻi o kāna noi ma nā ʻano like ʻole, ʻo kona hoʻohana ʻana ma kahi o 70% o ka nui o ka nui. o na kila kila a pau.Ma ke kahua o ka aila a me ka petrochemical, ikaika corrosive medium a me ka haʻahaʻa wela waena, pono o austenitic kuhiliʻole kila nui, e like me ke kiʻekiʻe corrosion kū'ē, oi aku ka mea i loko o ke kū'ē i intergranular corrosion kaiapuni, e like me ka wela exchanger / paipu pono, cryogenic. liquefied natural gas (LNG) pipeline, e like me urea, sulfur ammonia production container, flue gas dust remove and desulfurization device.

Hoʻokumu ʻia ka Duplex stainless steel ma ke kumu o ke kila kila hoʻokahi, ʻo kona ʻike Ni ka mea maʻamau e pili ana i ka hapalua o ke kila kila austenitic Ni maʻiʻo, e hōʻemi ana i ke kumukūʻai alloy.ʻO ke kila kila Austenitic maikaʻi loa ka pale ʻana i ka corrosion a me ka hoʻokō piha piha, hoʻonā i ka nāwaliwali o ka ferritic a me martensitic stainless steel corrosion resistance, austenitic stainless steel ikaika a me ke kūpaʻa ʻaʻahu.Ma ke kahua o ka petroleum a me ka petrochemical, hoʻohana nui ʻia ia i ka wai kai kū i ka corrosion resistant offshore platforms, acidic component a me nā mea hana, ʻoi loa i ka pitting corrosion resistant component.

ʻO ka hoʻoikaika ʻana i ka ua kila ma muli o ka mīkini hoʻoikaika ikaika e kiʻi i ka hana ikaika kiʻekiʻe, ʻo ia hoʻi ka mōhai ʻana i kona kūpaʻa corrosion, no laila ʻaʻole i hoʻohana ʻia i loko o ka corrosive medium, maʻamau i hoʻohana ʻia i ka mīkini petrochemical mining a me nā ʻoihana ʻē aʻe.

Ka hoʻohana ʻana i nā paipu kila kila i ka ʻaila a me ka ʻoihana petrochemical

ʻO ka ʻaila hinu a me ka ʻoihana petrochemical ka ʻoihana kia o ka hoʻokele waiwai o ka ʻāina, kahi mea nui i ka ʻoihana aupuni.I nā makahiki he 20 i hala iho nei, ua hoʻomaikaʻi maikaʻi ʻia ka paipu kila kuhili ʻole inā paipu ʻole a i ʻole paipu welded i ka pae ʻenehana hana.ʻO ka paipu kila kila i hanaʻia e kekahi mau mea hana hale i hiki i ke kiʻekiʻe e hiki ai ke pani piha i nā huahana i laweʻia mai, eʻike ana i ka localization o ka paipu kila.

I ka ʻaila a me ka ʻoihana petrochemical, hoʻohana nui ʻia ka paipu kila kila i ka ʻōnaehana hoʻoili pipeline, e komo pū me ka paipu kapuahi kiʻekiʻe, ka paipu, ka paipu ʻaila, ka paipu lawe wai, ka paipu hoʻololi wela a pēlā aku.Pono ke kila kila e hana maikaʻi i ka lawelawe wai a me ka waika.