ʻO ka valve wela haʻahaʻa me ka ʻāʻī lōʻihi e uhi i nā kumu no ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa e pili ana i ke kauoha nīnau nīnau
Loaʻa i nā kiwi haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa ʻoki ʻoki ʻia, haʻahaʻa haʻahaʻa wela ʻoki ʻia, haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, LNG haʻahaʻa wela wela, NG** haʻahaʻa wela wela, a me nā mea ʻē aʻe, hoʻohana nui ʻia i 300,000 tons o ka ethylene, liquefied maoli kinoea. a me nā mea kanu kemika ʻē aʻe. ʻO ka huahana haʻahaʻa haʻahaʻa haʻahaʻa e like me ka ethylene, ka oxygen wai, ka hydrogen wai, ke kinoea kūlohelohe liquefied, nā huahana petroleum liquefied, a me nā mea ʻē aʻe, ʻaʻole ia wale nō ka lapalapa a me ka pahū, akā ke gasification hoʻi i ka wā e wela ai. I ka hoʻonui ʻana i ke kinoea, hoʻonui ka leo i nā haneli haneli.
ʻO nā kumu no ka uhi ʻāʻī lōʻihi no nā kiwi wela haʻahaʻa
He kūpono no ka wela wela o -40 ℃ ~ -196 ℃ ua kapa ʻia ka valve haʻahaʻa haʻahaʻa, a ʻo kēia ʻano valve e hoʻohana maʻamau i ka uhi ʻāʻī lōʻihi.
Aia ka valve haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa ʻoki ʻoki ʻia, haʻahaʻa haʻahaʻa haʻahaʻa ʻoki ʻia, haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, LNG haʻahaʻa haʻahaʻa haʻahaʻa, NG haʻahaʻa haʻahaʻa haʻahaʻa, etc., hoʻohana nui ʻia i 300,000 tons o ethylene, kinoea maoli liquefied a me nā mea kanu kemika ʻē aʻe. ʻO ka huahana haʻahaʻa haʻahaʻa haʻahaʻa e like me ka ethylene, ka oxygen wai, ka hydrogen wai, ke kinoea kūlohelohe liquefied, nā huahana petroleum liquefied, a me nā mea ʻē aʻe, ʻaʻole ia wale nō ka lapalapa a me ka pahū, akā ke gasification hoʻi i ka wā e wela ai. I ka hoʻonui ʻana i ke kinoea, hoʻonui ka leo i nā haneli haneli
Ua kuhikuhi ʻia ka uhi ʻāʻī lōʻihi no ka mea:
(1) ʻO ka uhi ʻāʻī ʻāʻī lōʻihi ka hana o ka pale ʻana i ka pahu pahu pahu pahu haʻahaʻa haʻahaʻa, no ka mea, ʻo ka hoʻopaʻa ʻana i ka pahu pahu kahi o ke kī o ka valve haʻahaʻa haʻahaʻa. Inā hāʻule ka pahu pahu, e hōʻemi ia i ka hopena hoʻoluʻu a alakaʻi i ka gasification o ke kinoea liquefied. I ka haʻahaʻa haʻahaʻa, me ka emi ʻana o ka mahana, nalo mālie ka elasticity o ka paʻi ʻana, a ke emi nei ka hana leak-proof. Ma muli o ka leakage media, ua maloʻo ka paʻi ʻana a me ke kumu valve, e pili ana i ka hana maʻamau o ke kumu valve. I ka manawa like, ua ʻoki ʻia ka pulp packing ma muli o ka neʻe ʻana o ke kumu valve i luna a i lalo, e hoʻoulu ai i ka leakage koʻikoʻi. No laila, pono e hōʻoia i ka mahana o ka waihona hoʻopihapiha ma luna o 8 ℃.
(2) He maʻalahi ka uhi ʻana o ka ʻāʻī ʻāʻī lōʻihi i ka mea mālama anu i mea e pale ai i ka nalowale ʻana o ka ikehu anuanu o ka valve wela haʻahaʻa.
(3) ʻO ke ʻano o ka ʻāʻī lōʻihi o ka valve wela haʻahaʻa e maʻalahi i ka hoʻololi wikiwiki ʻana i nā ʻāpana valve nui ma o ka wehe ʻana i ka uhi uhi. No ka mea, ua hoʻokomo pinepine ʻia nā paipu kaʻina a me nā kiwi i loko o ka ʻāpana anu o nā mea hana i ka 'pahu anuanu', hiki ke hoʻonui ʻia ka uhi ʻāʻī ʻāʻī lōʻihi ma o ka pā 'pahu anuanu'. No ka hoʻololi i ka ʻāpana VALVE MAIN, e wehe wale ma o ka uhi valve, me ka wehe ʻole ʻana i ke kino. Hoʻopiliʻia ke kino valve a me ka pipeline i hoʻokahi, e like me ka hiki ke hoʻemi i ka leakage o ka pahu anu, e hōʻoia i ka sila o ka valve.
He mea pono e nana pono ke kauoha ninau koho valve wela haahaa
ʻO ka valve wela haʻahaʻa e pili ana i ka valve hiki ke hoʻohana ʻia ma lalo o ke kūlana haʻahaʻa haʻahaʻa. ʻO ka maʻamau, ʻo ka valve nona ka mahana hana haʻahaʻa ma mua o -40 ℃ ua kapa ʻia ka valve wela haʻahaʻa. ʻO ka valve wela haʻahaʻa kekahi o nā mea koʻikoʻi koʻikoʻi i ka ʻoihana petrochemical, ka hoʻokaʻawale ʻana i ka ea, ke kinoea maoli a me nā ʻoihana ʻē aʻe. Hoʻoholo kona maikaʻi inā hiki ke hana ʻia me ka palekana, ka waiwai a me ka hoʻomau. Me ka hoʻomohala ʻana o ka ʻenehana hou, ʻoi aku ka nui o ka hoʻohana ʻana i ka valve wela haʻahaʻa, ʻoi aku ka nui o ka noi.
No ka mahana ʻoi aku ka kiʻekiʻe ma mua o -50 ℃, maʻamau ʻaʻole e hoʻohana i ka hoʻolālā ʻāʻī lōʻihi, no ka mahana ma lalo o -50 ℃ ball valve, lōʻihi ʻāʻī T e like me ka hoʻolālā a me ka helu ʻana o Yijie valve hui. Hoʻohana nui ʻia ka valve pōlele haʻahaʻa haʻahaʻa no ka hoʻopuka ʻana o ka wai haʻahaʻa haʻahaʻa haʻahaʻa e like me ka ethylene, wai oxygen, wai hydrogen, liquefied maoli kinoea, liquefied petroleum huahana, a me nā mea ʻē aʻe, ʻaʻole wale i ke ahi a me ka pahū, akā i ka hoʻomehana ʻana i ka gasification, gasification. , hoʻonui nui i nā haneli he mau manawa.
He mea koʻikoʻi ka mea o ka liquefied natural gas valve, ʻaʻole kūpono ka mea, e hoʻoulu i ka leaka a me ka hoʻopaʻa ʻana i ka ʻili; ʻAʻole hiki i nā ʻāpana mechanical piha, ka ikaika a me ke kila o nā ʻāpana ke hoʻokō i nā koi o ka hoʻohana a i ʻole ka haki. ʻO ka hopena i ka liquefied natural gas medium leakage. No laila, i ke kaʻina hana o ka hoʻomohala ʻana, ka hoʻolālā ʻana a me ka hoʻomohala ʻana i nā kīwaha kinoea kūlohelohe liquefied, ʻo ka mea ke kumu mua a koʻikoʻi. Hoʻohana ʻia ke kino valve a me ka uhi: LCB (-46 ℃), LC3 (-101 ℃), CF8 (304) (-196 ℃).
Pono e hoʻohana ka valve wela haʻahaʻa i kahi ʻano uhi uhi ʻāʻī lōʻihi, ʻo kona lā e hoʻemi i ka wela i waho o ka mīkini; E hōʻoia i ka mahana o ka pahu pahu ma luna o 0 ℃, i hiki ke hana maʻamau ka paʻi; Kāohi i ka hau a i ʻole ka maloʻo ʻana o ke kumu a me ka ʻaoʻao o luna o ka pāpale ma ka ʻaoʻao o ka pahu meaʻai ma muli o ka maloʻo ʻana o ka ʻāpana pahu.
ʻO ka hoʻolālā o ka uhi ʻāʻī lōʻihi ka nui o ka hoʻolālā ʻana o ka lōʻihi o ka ʻāʻī L, ʻo L e pili ana i ka mamao mai ka lalo o ka pahu meaʻai a hiki i ka ʻili o luna o ka noho hoʻopaʻa ʻana, pili ia i ka conductivity thermal o ka mea, ʻo ka ʻāpana conductivity wela a me ka coefficient dissipation wela o ka ʻili, ka wahi wela a me nā mea ʻē aʻe, ʻoi aku ka paʻakikī o ka helu ʻana, loaʻa ma ke ʻano hoʻokolohua.
ʻO nā kūlana hana o ka valve haʻahaʻa haʻahaʻa he paʻakikī. ʻO ka hapa nui o ka media hana he mau mea inflammable, pahū a permeable. Hiki i ka haʻahaʻa haʻahaʻa haʻahaʻa ke piʻi i -269 ℃ a hiki ke piʻi i ka 10MPa ke kiʻekiʻe o ka hana hana. No laila, ʻokoʻa loa ka hoʻolālā ʻana, ka hana ʻana a me ka nānā ʻana i nā valve wela haʻahaʻa mai nā valve āpau.
He nui o kanaka, e kau wale i ka kiwikā mea he haʻahaʻa wela kila ua pololei manao cryogenic kiwikā, maoli 'ole, ia wale i ka cryogenic kiwikā o semi-hoʻopau huahana, no ka mea, aole ia ma hope cryogenic lapaʻau ma haʻahaʻa wela, a me ka haʻahaʻa wela. ʻO ka lapaʻau cryogenic ka peni maka maka nods o nā kīwaha cryogenic, nā kīwī cryogenic i ka mālama cryogenic he kī nui, i mea e hōʻoia ai i nā ʻāpana āpau o nā kīwaha cryogenic e hoʻokō i nā koi, ʻoi aku ka nui o ka hoʻonui ʻana, ʻaʻole ia e alakaʻi i nā ʻano valve i hoʻopaʻa ʻia i ka hoʻohana. . I kekahi manawa i ka noʻonoʻo ʻana i ke kumukūʻai o ka pilikia, pono nō hoʻi e noʻonoʻo i ka maikaʻi o ka valve. ʻO ka valve wela haʻahaʻa he valve kūikawā.
I kēia manawa ʻaʻole maoli ka nui o nā kīwī cryogenic ma hope o ka mālama ʻana i ka cryogenic i ka haʻahaʻa haʻahaʻa, e pipiʻi ke kumukūʻai, eia wau e hāʻawi iā ʻoe i kahi hana koʻikoʻi, inā kiʻekiʻe kāu hoʻonohonoho o nā lako cryogenic, ʻoi aku ka pipiʻi o nā lako cryogenic, a me ka wai nitrogen cryogenic. Ma waho aʻe o nā mea e pono ai a he mea mālama maikaʻi ʻole ia, a hoʻopau i ka valve i ka hoʻoili ʻana o ka wai nitrogen he nui loa, A ʻaʻole maʻalahi ka wai nitrogen. ʻO ka valve wela haʻahaʻa i hana ʻia e ka hoʻomaʻamaʻa haʻahaʻa haʻahaʻa haʻahaʻa, nā ʻāpana mīkini paʻakikī i loko o ke anuanu no kekahi mau hola (2-8 mau hola), e hoʻokuʻu i ke koʻikoʻi, e hōʻoia i ka hana haʻahaʻa haʻahaʻa o ka mea, e hōʻoia i ka nui hoʻopau, pale i ka pahu i ke kūlana haʻahaʻa haʻahaʻa, ma muli o ka hoʻololi ʻana o ka mahana ma muli o ka deformation ma muli o ka leakage o ka valve wela haʻahaʻa.
He mea pono e nānā pono i ke kauoha koho valve haʻahaʻa.
I mea e hoʻokō pono ai ka valve cryogenic i nā koi o ka mea kūʻai aku, inā makemake ʻoe i ka valve cryogenic, e ʻoluʻolu e hāʻawi i nā ʻāpana kikoʻī āu i ʻike ai.
1. Ka inoa o ka mea wela haʻahaʻa;
2. Ka wela o ka wela haʻahaʻa;
3. Ponoʻoe e hoʻopilikino i ka lōʻihi o ka'ā'ī lōʻihi o ka valve wela haʻahaʻa, i hāʻawiʻoleʻia e like me ke kūlana o ka valve;
4. Mea o ka haʻahaʻa wela valve (hiki ke hoʻopilikino e like me ka mea kūʻai mai koi);
5. Haʻahaʻa wela wela kaomi;
6. Haʻahaʻa wela valve sila (sila palupalu a sila paʻakikī paha);
7. Keʻano hoʻohui (pili flange a welding paha);
8. Keʻano hoʻokele (manual, pneumatic, electric).
Ka manawa hoʻouna: Oct-21-2022
