ʻO Flange General

ʻO ka flange ke ʻano o ka hoʻopili ʻana i nā paipu, nā kiwikā, nā pamu a me nā mea hana ʻē aʻe e hana i kahi ʻōnaehana paipu. Hāʻawi ia i kahi ala maʻalahi no ka hoʻomaʻemaʻe, nānā a hoʻololi paha. Hoʻopili pinepine ʻia nā flanges a wili ʻia. Hana ʻia nā hui flanged ma ka hoʻopaʻa ʻana i ʻelua flanges me kahi gasket ma waena o lākou e hāʻawi i kahi sila.

Nā mea hana no nā Flange

Hana ʻia nā flanges paipu i nā mea like ʻole e like me ke kila kila, ka hao, ka alumini, ke keleawe, ke keleawe, ka plastic etc.

Eia kekahi, ʻo nā flanges, e like me nā mea pono a me nā paipu, no nā kumu kikoʻī i kekahi manawa i hoʻolako ʻia i loko me nā papa o nā mea ʻokoʻa like ʻole e like me nā flanges ponoʻī, ʻo ia ka "line flanges".

ʻO ka mea o ka flange, ua hoʻonohonoho maoli ʻia i ka wā o ke koho ʻana i ka paipu, i ka hapanui o nā hihia, ʻo ka flange ka mea like me ka paipu.

ʻO nā flanges āpau, i kūkākūkā ʻia ma kēia pūnaewele e hāʻule ma lalo o nā kūlana ASME en ASTM, ke ʻole i hōʻike ʻia. Hōʻike ʻo ASME B16.5 i nā ana, nā ʻae ʻana a me ka ASTM i nā ʻano mea like ʻole.

Ana o Flange

ʻO kēlā me kēia flange ASME B16.5 he mau ana maʻamau. Inā ʻōlelo ka mea kākau kiʻi ma Iapana a i ʻole ka mea hoʻomākaukau hana ma Kanada a i ʻole ka pipefitter ma Australia e pili ana i kahi welding Neck flange NPS 6, Papa 150, Hōʻike 40 ASME B16.5, a laila hele ia ma luna o ka flange i hōʻike ʻia ma ke kiʻi ma lalo nei. .

Inā kauoha ʻia ka flange, makemake ka mea hoʻolako e ʻike i ka maikaʻi o nā mea. No ka laʻana, ʻo ka ASTM A105 kahi flange kila kalapona i hoʻopaʻa ʻia, ʻoiai ʻo A182 he flange kila kuhili ʻole.

No laila, ma ke kauoha pololei i ka mea hoʻolako pono e kuhikuhi ʻia nā kūlana ʻelua:

Nā hoʻohui Flange Bolted

ʻO kahi pilina flange bolted he hui paʻakikī o nā kumu he nui (Flange, Bolts, Gaskets, Process, Temperature, Pressure, Medium). Hoʻopili ʻia kēia mau mea like ʻole a hilinaʻi kekahi i kekahi no ka loaʻa ʻana o kahi hopena kūleʻa.
ʻO ka hilinaʻi o ka hui flanged e hilinaʻi nui ʻia ma luna o ka mana kūpono o ke kaʻina hana hui.

Ma ka haʻi ʻana mai ka puke a John H. Bickford, "An Introduction to the Design and Behavior of Bolted Joints":
ʻO ka ikaika hoʻopaʻa koʻikoʻi a pau e paʻa ai ka hui - a me ka ʻole o ia mea ʻaʻohe hui - ʻaʻole i hana ʻia e ka mea hoʻolālā hui maikaʻi, ʻaʻole hoʻi e nā ʻāpana kiʻekiʻe. Hana ʻia ia e ka mechanic ma ka kahua hana, me ka hoʻohana ʻana i nā mea hana, nā kaʻina hana, a me nā kūlana hana a mākou i hāʻawi ai iā ia… No laila, he mea nui iā mākou ke hoʻomaopopo i kēia kaʻina hana.

Ua ʻike ka ʻoihana i ke ʻano koʻikoʻi o ka hoʻonohonoho ʻana a me ka hui ʻana no kekahi mau makahiki.
Ma ʻEulopa, ʻo ka manaʻo nui i ka hōʻoia ʻana e hana ʻia ka hui ʻana e nā ʻenehana i aʻo ʻia a hōʻoia ʻia a ua alakaʻi kēia i ka paʻi ʻana i kahi kūlana ʻenehana ʻEulopa: TS EN 1591 Māhele 4 i kapa ʻia "Flanges a me kā lākou hui. Hoʻolālā i nā lula no ka hoʻopili ʻia ʻana o ka flange pōʻai. ʻO ka hōʻoia o ka mākaukau o nā limahana i ka hui ʻana o nā hui bolted i hoʻopili ʻia i nā mea hana e pili ana i ka Pressure Equipment Directive (PED)".

Hāʻawi ka maʻamau i kahi ʻano no ka hoʻomaʻamaʻa ʻana a me ka loiloi o nā ʻenehana i komo i ka hana ʻana a me ka haki ʻana o nā hui flange a hiki ke ʻike ʻia e like me ka hoʻomaʻamaʻa ʻana i koi ʻia no nā welders e pili ana i ka hana moku. Hōʻike kāna paʻi ʻana i ke koʻikoʻi i kau ʻia ma luna o ka mana kūpono o ke kaʻina hana hui i ka hōʻoia ʻana i ka hana leak-free mai ka flange.

ʻO ka gasket kekahi o nā kumu he nui e hiki ai ke kahe ʻana o kahi pilina pili flange bolted.
ʻOiai i ka wā e hana like ai nā ʻāpana pili paʻakikī a pau o ka hoʻohui flange hui bolted, ʻo ka mea nui loa e alakaʻi ai i ka kūleʻa a i ʻole ka hoʻokō ʻole ʻana o kēlā pili flange bolted e hāʻawi ʻia i nā kaʻina hana kūpono a me nā kaʻina hana e ka mea hoʻokomo i ka gasket. . Inā hana pono, e noho leak-free ka hui no ka manaʻolana ola.