4 mau pōpō paʻa
ʻO ka mea sila noho koʻikoʻi loa nonā kiwikā poepoeʻO ka polytetraoxyethylene (PTFE), he mea maʻalahi ia i nā mea kemika āpau, a he haʻahaʻa ka coefficient friction, hana paʻa, ʻaʻole maʻalahi ke ʻelemakule, ākea ka laulā o ka noi wela a me ka hana sila. Nā ʻano piha maikaʻi loa. Eia nō naʻe, ʻo nā waiwai kino o ka PTFE, me ke koina hoʻonui kiʻekiʻe, ka ʻike i ke kahe anu a me ka conductivity thermal maikaʻi ʻole, koi i ka hoʻolālā ʻana o nā sila noho valve e kālele i kēia mau ʻano. ʻO ka mea plastik o ka sila noho valve e komo pū me ka PTFE i hoʻopiha ʻia, nylon a me nā mea ʻē aʻe he nui. Eia naʻe, i ka wā e paʻakikī ai ka mea sila, e hōʻino ʻia ka hilinaʻi o ke sila, ʻoiai i ka hihia o ka ʻokoʻa haʻahaʻa haʻahaʻa. Eia kekahi, hiki ke hoʻohana ʻia ka rubber synthetic e like me ka butyl rubber ma ke ʻano he mea sila noho valve, akā ua kaupalena ʻia kāna mau lāʻau lapaʻau waena a me ka mahana. Eia kekahi, inā ʻaʻole lubricated ka medium, ʻo ka hoʻohana ʻana i ka rubber synthetic e paʻa paha i ka pōpō.
I mea e hoʻokō ai i nā koi hoʻohana o nā noi ʻoihana e like me ke kiʻekiʻe o ka mahana, ke kaomi kiʻekiʻe, ka ʻino ikaika, ke ola lōʻihi, a pēlā aku, ua hoʻomohala nui ʻia nā kiwikā pōpō i hoʻopaʻa ʻia me ka metala i nā makahiki he ʻumi i hala. ʻOi loa aku hoʻi i nā ʻāina ʻoihana i hoʻomohala ʻia, e like me ʻAmelika Hui Pū ʻIa, Italia, Kelemānia, Sepania, Netherlands, a pēlā aku, ua hoʻomaikaʻi mau ʻia ke ʻano o ka kiwikā pōpō, a ua loaʻa nā kiwikā pōpō i kanu pololei ʻia i ke kino āpau, nā kiwikā pōpō hāpai, a me nā kiwikā pōpō i nā pipelines mamao loa, nā lako hoʻomaʻemaʻe aila, a pēlā aku. Ke hoʻohana nui ʻia nei ke kahua ʻoihana, me ke anawaena nui (3050mm), ke kaomi kiʻekiʻe (70MPa) a me ka laulā o ka mahana (-196 ~ 8159C) pōpō e ʻike ʻia ana, no laila ua hiki i ka ʻenehana o ka kiwikā pōpō i kahi pae hou.
5 Hoʻolālā a me ka hana ʻana o ka valve pōpō
Ma muli o ka hoʻohana ʻana o ka Computer Aided Design (CAD), Computer Aided Manufacturing (CAM) a me Mulberry Manufacturing System (FMS) i ka ʻoihana valve, ua hōʻea ka hoʻolālā a me ka hana ʻana o nā valves pōpō i kahi pae hou loa. ʻAʻole wale ia i hoʻololi hou i ke ʻano helu hoʻolālā valve, akā ua hoʻemi pū i ka hana hoʻolālā kaumaha a hana hou ʻia o nā limahana ʻoihana a me nā loea, i loaʻa i nā loea ka ikaika hou aku e hoʻomaikaʻi, hoʻomaikaʻi i ka hana huahana a me ka hoʻomohala huahana hou, a hoʻopōkole i ke kaʻina hana noiʻi a me ka hoʻomohala ʻana o nā huahana hou. , Hoʻomaikaʻi i ka huahua hana ma ke ʻano holoʻokoʻa, a i ke kaʻina hana o ka noiʻi a me ka hoʻomohala ʻana o ka lifting rod type metal sealing ball valve, ma muli o ka hoʻohana ʻana o CAD/CAM, ua puka mai kahi pālahalaha wili koʻokoʻo ākea i hana ʻia e ka hoʻolālā kōkua kamepiula a me nā mea hana mīkini CNC kōkua kamepiula, ʻo ia hoʻi kahi sila metala. ʻAʻohe ʻōpala a me ke komo ʻana o ka valve pōpō i ka wā wehe a pani ʻana, i hoʻomaikaʻi nui ʻia ka hana sila a me ke ola lawelawe o ka valve pōpō. Ke wehe piha ʻia ka valve pōpō, he liʻiliʻi loa ke kū'ē ʻana o ke kahe, kokoke like me ka ʻole, no laila ua hoʻohana nui ʻia ka valve pōpō like ke anawaena i nā paipu aila a me ke kinoea no ka mea he maʻalahi ke hoʻomaʻemaʻe i ka pipeline. Ma muli o ka holoi ʻia ʻana o ka pōpō o ka valve pōpō i ka wā o ka wehe ʻana a me ka pani ʻana, hiki ke hoʻohana ʻia ka hapa nui o nā valve pōpō i nā media me nā ʻāpana paʻa i hoʻokuʻu ʻia. Ma muli o ka mea o ke apo sila, hiki ke hoʻohana ʻia i nā media pauka a me nā granular.
6 mau manawa kūpono no ka valve pōpō
ʻOiai ʻo ka valve pōpō e hoʻohana pinepine ana i ka rubber, nylon a me ka polytetraoxyethylene ma ke ʻano he mea apo sila noho, ua kaupalena ʻia kona mahana hoʻohana e ka mea apo sila noho valve. Hoʻokō ʻia ka hopena ʻoki o ka laulā pōpō ma o ke kaomi ʻia ʻana o ka pōpō metala kekahi i kekahi ma waena o nā noho valve plastik ma lalo o ka hana a ka medium (floating ball valve). Ma lalo o ka hana o kekahi kaomi pili, hoʻololi ke apo sila noho valve i ke ʻano elastic a me ka plastic ma kekahi mau wahi. Hiki i kēia deformation ke uku i ka pololei o ka hana ʻana a me ka ʻili o ka pōpō, a hōʻoia i ka hana sila o ka valve pōpō.
Eia kekahi, ʻoiai ʻo ke apo sila noho o ka valve pōpō i hana pinepine ʻia i ka plastic, i ke koho ʻana i ke ʻano a me ka hana o ka valve pōpō, pono e noʻonoʻo i ke kū'ē ʻana i ke ahi a me ke kū'ē ʻana i ke ahi o ka valve pōpō, ʻoi aku hoʻi i ka petroleum, kemika, metallurgical a me nā ʻāpana ʻē aʻe, ma nā mea lapalapa a me nā mea pahū. ʻO ka hoʻohana ʻana i nā valves pōpō i nā lako a me ka ʻōnaehana paipu o ʻAmelika Hui Pū ʻIa e pono e uku nui aku i ka pale ʻana i ke ahi a me ka pale ʻana i ke ahi.
Ma keʻano laulā, i ka hoʻoponopono ʻana i nā kūlana ʻelua, ka hana sila paʻa, ka lepo, ka abrasion, ke kahawai necking, ka wehe wikiwiki ʻana a me ka pani ʻana (1/4 huli wehe a pani ʻana), ke ʻoki ʻana i ke kaomi kiʻekiʻe (ʻokoʻa kaomi nui), ka walaʻau haʻahaʻa, ka cavitation a me ka vaporization, I loko o nā ʻōnaehana paipu me ka liʻiliʻi o ka leakage i ka lewa, ka torque hana liʻiliʻi a me ke kū'ē wai liʻiliʻi, ua ʻōlelo ʻia nā valves pōpō.
He kūpono hoʻi nā kiwikā pōpō no nā ʻōnaehana paipu me ke ʻano māmā, ka ʻoki haʻahaʻa haʻahaʻa (ʻokoʻa kaomi liʻiliʻi), a me nā mea ʻino.
Hiki ke hoʻohana ʻia nā kiwikā pōpō i nā mea hana haʻahaʻa wela (cryogenic) a me nā ʻōnaehana pipeline.
I loko o ka ʻōnaehana paipu oxygen o ka ʻoihana metallurgical, pono nā valves pōpō i hana ʻia i ka mālama degreasing koʻikoʻi.
Ke pono e kanu ʻia nā laina nui i loko o nā paipu aila a me ke kinoea ma lalo o ka honua, pono nā kiwikā pōpō i hoʻopaʻa ʻia me ke anawaena piha.
Ke koi ʻia ka hoʻoponopono ʻana i ka hana, pono e koho ʻia kahi valve pōpō me kahi ʻano kūikawā me kahi puka V-ʻano.
I loko o ka petroleum, petrochemical, kemika, ka mana uila, a me ke kūkulu ʻana i ke kūlanakauhale, hiki ke hoʻohana ʻia nā kiwikā pōpō i hoʻopaʻa ʻia me ka metala-a-metala no nā ʻōnaehana paipu me nā mahana hana ma luna o 200°C.
7 Nā Kumumanaʻo o ka hoʻopili ʻana i nā kiwikā pōpō
No nā paipu aila a me ke kinoea kūlohelohe, nā paipu e pono e hoʻomaʻemaʻe ʻia, a kanu ʻia i loko o ka lepo, e hoʻohana i nā kiwikā pōpō all-pass a me nā kiwikā pōpō all-welded; no ke kanu ʻia ʻana i loko o ka lepo, koho i nā kiwikā pōpō all-pass welded a i ʻole flanged; nā paipu lālā, koho i ka pilina flange, ka pilina wili, ka kiwikā pōpō piha-pass a i ʻole ke anawaena i hoʻemi ʻia.
No ka paipu halihali a me nā lako mālama o ka ʻaila i hoʻomaʻemaʻe ʻia, e hoʻohana i nā kiwikā pōpō flanged.
No nā paipu kinoea kūlanakauhale a me ke kinoea kūlohelohe, e hoʻohana i nā kiwikā pōpō lana me ka pilina flange a me ka pilina kaula kūloko.
I loko o ka ʻōnaehana paipu oxygen i loko o ka ʻōnaehana metallurgical, pono e hoʻohana ʻia kahi valve pōpō paʻa i hana ʻia i ka mālama degreasing koʻikoʻi a me ka pilina flanged.
No nā ʻōnaehana paipu haʻahaʻa a me nā hāmeʻa, pono e hoʻohana ʻia nā kiwikā pōpō haʻahaʻa me nā pāpale. I loko o ka ʻōnaehana paipu o ka ʻāpana haki catalytic o ka ʻāpana hoʻomaʻemaʻe ʻaila, hiki ke koho ʻia kahi kiwikā pōpō ʻano hāpai.
I loko o nā lako a me nā ʻōnaehana paipu o nā mea ʻino e like me ka waikawa a me ka alkali i nā ʻōnaehana kemika, he mea kūpono ke hoʻohana i nā kiwikā pōpō kila kila āpau i hana ʻia me ke kila kila austenitic a me ka polytetraoxyethylene ma ke ʻano he noho a me ke apo sila.
Hiki ke hoʻohana ʻia nā kiwikā poepoe sila metala-a-metala i nā ʻōnaehana paipu a i ʻole nā ​​​​​​mea hana no nā mea pāpaho wela kiʻekiʻe i nā ʻōnaehana metallurgical, nā ʻōnaehana mana, nā hoʻonohonoho petrochemical, a me nā ʻōnaehana hoʻomehana kūlanakauhale.
Ke koi ʻia ka hoʻoponopono ʻana i ke kahe ʻana o ke kahe, hiki ke koho ʻia kahi drive worm-gear, pneumatic a i ʻole electric ball valve me ka puka ʻana o V.