S355j0h hōʻoia maikaʻi o ka paipu kila maʻemaʻe

ʻO ka paipu kila kiʻekiʻe i loaʻa nā waiwai mechanical piha piha i ka lumi wela a me ka wela kiʻekiʻe a me ka mana koʻikoʻi. He kūpono ia no nā manawa hana like ʻole ma lalo o ke kaomi kiʻekiʻe. Hoʻohana nui ʻia nā paipu kila kiʻekiʻe i nā māla o nā paila, nā paipu aila kiʻekiʻe o nā ʻenekini diesel, nā mea hoʻomomona a me nā pipeline.

ʻO nā koi no ka hoʻokomoʻana i nā paipu kiʻekiʻe kiʻekiʻe e like me nā mea no ka hoʻokomoʻana i nā pipelines medium a me ka haʻahaʻa haʻahaʻa, akāʻoi aku ka kiʻekiʻe o nā koi aʻoi aku ka paʻakikī o nā hoʻoponopono. No laila, ma waho aʻe o ka hoʻokō ʻana i nā koi hoʻonohonoho o nā pipelines medium a me nā haʻahaʻa haʻahaʻa, e hahai ʻia nā koi aʻe.

ʻO nā ʻāpana paipu kiʻekiʻe, nā paipu paipu, nā mea hoʻopaʻa a me nā valves i hoʻohana ʻia no ka hoʻokomo ʻana pono e hele i ka nānā ʻana a hoʻopili ʻia me nā palapala kākoʻo ʻenehana pili. Ma hope o ka lawe ʻia ʻana i ke kahua, e mālama pono ʻia, hōʻailona ʻia a waiho maikaʻi ʻia. Ma mua o ka hoʻokomo ʻana, e holoi ʻia nā ʻili o loko a me waho, a e nānā ʻia ke kahawai o loko no nā mea ʻē a me ka maʻalahi. E nānā inā kūpono ka ʻawaʻawa o ka nozzle sealing surface a me ka gasket i nā koi. ʻAʻohe ʻakaʻaka (ʻoi aku nā ʻōpala radial), nā kiko a me nā hemahema ʻē aʻe e pili ana i ka hana sila ʻana ma ka ʻili o ka sila. Ma waho aʻe o nā paipu me nā koi degreasing, e uhi ʻia ka nozzle sealing surface a me ka gasket me ka ʻaila ʻenekini a i ʻole ka pata a i ʻole ka vaseline keʻokeʻo no ka pale. E uhi ʻia ka ʻāpana i hoʻopaʻa ʻia o ka hopena paipu o ka paipu kiʻekiʻe kiʻekiʻe me ka molybdenum disulfide grease a i ʻole ka aila mīkini graphite no ka pale ʻana, koe wale nō nā paipu i degreased e like me ka mea i kuhikuhi ʻia.

I ka wā o ka hoʻokomo ʻana i ka pipeline, e hoʻohana ʻia ka pahu paipu maʻamau no ka hoʻopaʻa ʻana, a e hoʻokomo ʻia ka pahu pale ma luna o ka paipu paipu e pili ana me nā paipu kiʻekiʻe a me nā mea pono e like me nā koi hoʻolālā. I ka hoʻokomo ʻana i ka flange puʻe kiʻekiʻe, e ʻike ʻia ka chamfer o ke kaula hopena paipu. I ka hoʻokomo ʻana i ka gasket sealing, mai kau ʻoe me ka uea metala. E hoʻopili ʻia ka momona i ka puka paipu a me ka gasket ma mua, a e hoʻokomo pono ʻia ka pahu metala palupalu kiʻekiʻe ma ka noho sila. E hoʻopaʻa ʻia nā ʻūhā flange ma ke ʻano like ʻole a me ke ʻano ʻole. Ma hope o ka hoʻopaʻa ʻia ʻana o nā bolts, e hoʻohālikelike ʻia nā flanges ʻelua a concentric. ʻO nā kaula i hōʻike ʻia ma waho o nā nati he 2 ~ 3 mau milo, ma ka liʻiliʻi he 2 mau kaula, a ʻo ka lōʻihi i ʻike ʻia o kēlā me kēia bolt e like nō ia. I ka wā o ka hoʻouka ʻana, ʻaʻole ʻae ʻia e uku no ka hana ʻana a i ʻole ka hoʻokomo ʻana i nā hewa ma o ka huki ikaika ʻana, ka paʻi ʻana, ka wili ʻana a i ʻole ka hoʻololi ʻana i ka mānoanoa o ka gasket sealing. Inā ʻaʻole hiki ke hoʻokō ʻia ka hoʻokomo ʻana o ka pipeline a hoʻopau mau ʻia, e pani ʻia ka puka paipu hāmama i ka manawa. E hoʻokomo ʻia nā ʻāpana o ka ʻāpana sampling mea hana ma ka pipeline i ka manawa like me ka pipeline.

ʻO ke kiʻekiʻe puʻupuʻu paila he ʻano o ka paila paila, nona ka ʻāpana o ka paipu kila seamless. ʻO keʻano o ka hanaʻana ua like ia me ka paipuʻole, akā aia nā koi koʻikoʻi no ka pae kila i hoʻohanaʻia i ka hanaʻana i ka paipu kila. Loaʻa pinepine nā paipu paila kiʻekiʻe i ka wela kiʻekiʻe a me nā kūlana kiʻekiʻe. E oxidized a corroded nā paipu ma lalo o ka hana o ke kinoea a me ka mahu. Pono ka paipu kila e loaʻa ka ikaika mau loa, ka anti-oxidation kiʻekiʻe a me ka hana corrosion a me ka paʻa paʻa maikaʻi. Hoʻohana nui ʻia nā paipu paila kiʻekiʻe no ka hana ʻana i nā paipu superheater, nā paipu reheater, nā ʻea ea, nā pahu mahu nui, etc.

ʻO ke kiʻekiʻe puʻupuʻu paila he ʻano o ka paila paila, nona ka ʻāpana o ka paipu kila seamless. ʻO keʻano o ka hanaʻana e like me nā paipu paila kiʻekiʻe kiʻekiʻe, akā aia nā koi koʻikoʻi no nā māka kila i hoʻohanaʻia i ka hanaʻana i nā paipu kila. Loaʻa pinepine nā paipu paila kiʻekiʻe i ka wela kiʻekiʻe a me nā kūlana kiʻekiʻe. Hoʻohana nui ʻia nā paipu paila kiʻekiʻe no ka hana ʻana i nā paipu superheater, nā paipu reheater, nā ʻea ea, nā pahu mahu nui, etc.

Ma muli o ka hana lōʻihi ma lalo o ka wela kiʻekiʻe a me ke kaomi kiʻekiʻe, e kolo ana ka mea o ka paila paila, hoʻemi i ka plasticity a me ka paʻakikī, hoʻololi i ke ʻano kumu a hana i ka corrosion. Pono ka paipu kila no ka paila: (1) lawa ka ikaika mau; (2) Hiki ke hoʻololi i ka plastic plastic; (3) ʻO ka liʻiliʻi o ka wā kahiko a me ka brittleness thermal; (4) High oxidation kū'ē, lanahu lehu kū'ē, kūlohelohe kinoea corrosion ma lalo o kiʻekiʻe wela, mahu a me stress corrosion kū'ē; (5) Paʻa paʻa maikaʻi a me nā waiwai kaʻina hana maikaʻi. ʻO nā ʻano kila o nā paipu paila kiʻekiʻe e pili ana i ke kila kalapona, pearlite, ferrite a me austenite stainless steel pale wela. I mea e hoʻomaikaʻi ai i ka maikaʻi wela o nā mana wela a hōʻemi i ka hoʻohana ʻana i ka wahie, ʻo nā ʻāina a puni ka honua e nānā i ka hoʻomohala ʻana i ka mana nui a me ke kiʻekiʻe kiʻekiʻe (kiʻekiʻe wela a me ke kiʻekiʻe kiʻekiʻe) nā mana wela (ma luna o 1000MW). Piʻi ke kaomi mahu i 31.5 ~ 34.3mpa, hiki i ka wela wela wela loa i 595 ~ 650 ℃, a hoʻomohala i ke kaomi koʻikoʻi ultra-high pressure, kahi e kau ai i mua i nā koi kiʻekiʻe no nā paipu boiler kiʻekiʻe. No laila, ua kūkulu ʻia nā māka kila hou no ka hoʻokō ʻana i nā pono o nā boilers hoʻohana kiʻekiʻe.