Hoʻokomo kumu o ka flange
ʻO nā flanges paipu a me kā lākou gaskets a me nā mea hoʻopaʻa i hui pū ʻia i nā hui flange.
Noi:
ʻO ka hui Flange kahi ʻano mea i hoʻohana nui ʻia i ka hoʻolālā ʻenekinia.He ʻāpana koʻikoʻi ia o ka hoʻolālā paipu, nā paipu paipu a me nā kiwi, a me kahi mea koʻikoʻi o nā mea hana a me nā ʻāpana mea hana (e like me ka manhole, ʻike aniani kiʻekiʻe kiʻekiʻe, etc.).Eia kekahi, hoʻohana pinepine ʻia nā hui flange i nā ʻoihana ʻē aʻe, e like me nā kapuahi ʻoihana, ka ʻenekinia wela, ka wai a me ka hoʻoheheʻe ʻana, ka hoʻomehana a me ka ventilation, ka mana aunoa, etc.
Kino o ka mea:
Ke kila forged, WCB carbon steel, stainless steel, 316L, 316, 304L, 304, 321, chrome-molybdenum steel, chrome-molybdenum-vanadium steel, molybdenum titanium, lāʻau lapaʻau, fluorine lining mea.
Hoʻokaʻawale:
ʻO ka flange wili paʻa, ka ʻāʻī ʻāʻī, ka ʻāʻī kuʻi kuʻi, ke apo hoʻohui ʻana i ka flange, ka ʻāʻī kumu, a me ka pā makapō, etc.
Kūlana hoʻokō:
Aia nā pūʻulu GB (maʻamau aupuni), JB series (mechanical department), HG series (chemical department), ASME B16.5 (American standard), BS4504 (British standard), DIN (German standard), JIS (Japanese standard).
Pūnaehana maʻamau flange paipu honua:
ʻElua mau kūlana flange paipu honua nui, ʻo ia ka ʻōnaehana pipe flange ʻEulopa i hōʻike ʻia e German DIN (me ka Soviet Union mua) a me ka ʻōnaehana pipe flange ʻAmelika i hōʻike ʻia e ka flange paipu ANSI ʻAmelika.
1. Pāʻano pāpaʻa kuʻihao flange
pono:
He mea maʻalahi ka loaʻaʻana o nā mea, maʻalahi i ka hanaʻana, haʻahaʻa i ke kumukūʻai a hoʻohana nuiʻia.
Nā hemahema:
Ma muli o kona rigidity maikaʻi ʻole, ʻaʻole pono e hoʻohana ʻia i nā ʻōnaehana pipili kaʻina me nā koi o ka lako a me ke koi, flammability, explosiveness a me ke kiʻekiʻe vacuum degere, a i nā kūlana weliweli loa.
ʻO ke ʻano o ka ili hoʻopaʻa ʻana he mau ʻili palahalaha a convex.
2. Paʻa kuʻihao flange me ka ʻāʻī
ʻO ka flange welding slip-on me ka ʻāʻī no ka ʻōnaehana maʻamau flange maʻamau.ʻO ia kekahi ʻano o ka flange maʻamau o ke aupuni (ʻike ʻia ʻo GB flange) a me kekahi o nā flanges i hoʻohana mau ʻia ma nā lako a i ʻole pipeline.
pono:
Maikaʻi ka hoʻokomo ʻana ma ka pūnaewele, a hiki ke hoʻokuʻu ʻia ke kaʻina hana o ka hili ʻana
Nā hemahema:
ʻO ke kiʻekiʻe o ka ʻāʻī o ka flange welding slip-on me ka ʻāʻī he haʻahaʻa, kahi e hoʻomaikaʻi ai i ka rigidity a me ka hiki ʻana o ka flange.Ke hoʻohālikelike ʻia me ka flange welding butt, ʻoi aku ka nui o ka hana welding, kiʻekiʻe ka hoʻohana ʻana i ke koʻokoʻo welding, a ʻaʻole hiki ke kū i ke kiʻekiʻe kiʻekiʻe a me ke kiʻekiʻe kiʻekiʻe, ka piʻi pinepine ʻana a me ka piʻi ʻana o ka mahana.
3. ʻAi ʻāʻī kuʻiʻo flange
ʻO nā ʻano ili hoʻopaʻa ʻia o ka flange welding neck butt:
RF, FM, M, T, G, FF.
pono:
ʻAʻole maʻalahi ka pili ʻana i ka deform, maikaʻi ka hopena sealing, a hoʻohana nui ʻia.He kūpono ia no nā paipu me nā loli nui i ka mahana a i ʻole ke kaomi, ke kiʻekiʻe kiʻekiʻe, ke kiʻekiʻe kiʻekiʻe a me ka haʻahaʻa haʻahaʻa, a no nā pipeline hoʻi e lawe ana i nā media pipiʻi, nā mea puhi ahi a me nā mea pahū, a me nā kinoea ʻona.
Nā hemahema:
ʻO ka ʻāʻī ʻāʻī-weld flange he nui, nui, pipiʻi, a paʻakikī ke hoʻouka a loaʻa.No laila, ʻoi aku ka maʻalahi o ke kuʻi ʻana i ka wā o ka lawe ʻana.
4. Socket welding flange
ʻO ka flange wiliwili kumuhe flange i wili ʻia me ka paipu kila ma kekahi ʻaoʻao a hoʻopaʻa ʻia ma kekahi ʻaoʻao.
ʻAno ili hoʻopaʻa:
ʻO ka maka i hoʻokiʻekiʻe ʻia (RF), ka maka concave a me ka convex (MFM), ke alo a me ke alo (TG), ke alo hui pū (RJ)
Ka laulā o ka noi:
ʻO ka paila a me ka moku kaomi, ka aila, kemika, ka hana moku, ka lāʻau lapaʻau, ka metallurgy, ka mīkini, ke kuʻekuʻe lima i ka meaʻai a me nā ʻoihana ʻē aʻe.
Hoʻohana maʻamau i nā pipeline me PN ≤ 10.0MPa a me DN ≤ 40.
5. Lele wiliwili
ʻO ka flange threaded he flange non-welded, e hana ana i ka puka o loko o ka flange i loko o ke kaula paipu a hui pū me ka paipu kaula.
pono:
Hoʻohālikelike ʻia me ka flange welding flat a i ʻole butt welding flange,hili ʻiaLoaʻa nā hiʻohiʻona o ka hoʻonohonoho kūpono a me ka mālama ʻana, a hiki ke hoʻohana ʻia ma kekahi mau pipeline i ʻae ʻole ʻia e welded ma ka pūnaewele.Ua lawa ka ikaika o ka flange kila, akā ʻaʻole maʻalahi ka weld, a ʻaʻole maikaʻi ka hana kuʻi ʻana, hiki ke koho ʻia ka flange threaded.
Nā hemahema:
Ke loli nui ka mahana o ka pipeline a i ʻole ke kiʻekiʻe o ka mahana ma mua o 260 ℃ a haʻahaʻa ma lalo o - 45 ℃, ʻōlelo ʻia ʻaʻole e hoʻohana i ka flange threaded e pale aku i ka leakage.
6. Lepa makapō
ʻIke ʻia hoʻi ʻo ka uhi flange a me ka pā makapō.He flange ʻaʻohe puka i waenakonu no ka hoʻopaʻa ʻana i ka pahu paipu.
Ua like ka hana me ke po'o welded a me ka pāpale paipu kaula, koe wale nōflange makapōa hiki ke wehe ʻia ka pāpale paipu kaula i kēlā me kēia manawa, ʻoiai ʻaʻole hiki i ke poʻo welded.
ʻO ka ʻili hoʻopaʻa paʻa ʻana o ka flange uhi:
Paʻa (FF), maka hoʻokiʻekiʻe (RF), maka concave a convex (MFM), alo a me ke alo (TG), alo hui pū (RJ)
Ka manawa hoʻouna: Feb-28-2023
