Ka noiʻi ʻana a me ka hoʻohana ʻana i ka pahu kiʻekiʻe wela wela

ʻO ka noiʻi a me ka noi ʻana o ka packing valve kiʻekiʻe ʻO ka mahana hana o ka valve he 425 ~ 550 ℃ no ke kiʻekiʻe wela ⅰ papa (i kapa ʻia ʻo PI grade). ʻO ka mea nui o ka valve PI class "high temperature grade Ⅰ medium carbon chromium nickel rare earth titanium quality heat-resistant steel" ma ASTMA351 standard CF8 ma ke kumu. No ka mea he hua'ōlelo kikoʻī ka papa PI, ua hoʻokomo ʻia ka manaʻo o ke kila kila kila (P) ma ʻaneʻi. No laila, inā he wai a mahu paha ka mea hana, ʻoiai e loaʻa ana ke kila wela kiʻekiʻe WC6 (t≤540 ℃) a i ʻole WC9 (t≤570 ℃), i ka ʻaila sulfur, ʻoiai e loaʻa ana ke kila wela kiʻekiʻe C5 (ZG1Cr5Mo), akā eia. ʻAʻole hiki ke kapa ʻia lākou he papa PI. ʻO ka noiʻi a me ka hoʻohana ʻana i ke kiʻekiʻe kiʻekiʻe kiʻekiʻe valve packing Valve kahi huahana mechanical maʻamau i ka ʻoihana hou. Ma ke ʻano he ʻāpana hoʻomalu koʻikoʻi i ka ʻōnaehana hoʻoili wai, hoʻohana nui ʻia ia i ka paila, pipeline mokuahi, hoʻomaʻemaʻe aila, ʻoihana kemika, ahi a me nā metallurgy, no kāna ʻoki ʻoki, hoʻoponopono, hoʻoponopono kaomi, shunting a me nā hana ʻē aʻe. Ua hāʻawi ka ʻoihana hou i nā koi kiʻekiʻe a kiʻekiʻe aʻe no ka hilinaʻi o ka sila valve. ʻO ka hana hoʻopaʻa ʻana he helu ʻenehana koʻikoʻi no ka loiloi ʻana i ka maikaʻi o nā huahana valve. ʻO ka valve wela kiʻekiʻe e pili ana i ka valve nona ka mahana hana ma mua o 250 ℃. ʻO ka ʻenehana sealing filler o ke kumu o ka valve wela kiʻekiʻe he pilikia koʻikoʻi ʻaʻole i hoʻoponopono ʻia no nā makahiki he nui, a ʻo ia kekahi o nā loulou nāwaliwali e hoʻomaikaʻi ai i ka hilinaʻi o ka valve. ʻAʻole lawa a ʻoi aku ka nui o ke sila, ʻaʻole maʻalahi ka leaka o ka valve stem i ka wā lōʻihi, ka leakage o ka inflammable, explosive, mea ʻona a me nā mea ʻino ʻē aʻe ʻaʻole wale i ka pani ʻana i nā mea kanu a me nā poho waiwai, akā ke kumu hoʻi i ka pollution kaiapuni, a me nā ulia pōʻino o nā limahana, i ka pilikia nui o ka mīkini. ʻO ka mea mua, ke kumu o ka valve packing seal ʻO ka hana hoʻopaʻa ʻana o ka valve he kuhikuhi koʻikoʻi e loiloi i ka maikaʻi a me ka hana o ka valve. I kēia manawa, ʻo ka hapa nui o ka valve control a i ʻole ka pahu valve maʻamau a me ka hoʻopaʻa ʻana i ke sila no ka sila hoʻopili, ma muli o kona ʻano maʻalahi, maʻalahi ka hui ʻana a me ka hoʻololi ʻana, ke kumu kūʻai haʻahaʻa a hoʻohana ʻia. He mea maʻamau ke kumu o ka valve a me ka leakage packing. ʻO ke kumu e hiki ai i ka packing ke hoʻokani i ke ʻano o ka hoʻopaʻa ʻana, ʻo kāna kumu i kēia manawa aia ʻelua mau hiʻohiʻona hoʻopaʻa paʻa, ʻo ia ka hopena a me ka hopena maze. ʻO ka hopena o ka hoʻopili ʻana e pili ana i ka hoʻopili ʻana ma waena o ka hoʻopiha a me ka ʻōpala, kaomi ʻana i ka paʻi a ma lalo o ka mana o ka lubricant o waho, ma muli o ke ʻano o ka hoʻopaʻapaʻa ʻana i ka wahi hoʻopili o ke kumu e hana i kahi papa o ka membrane wai, e hana i ka hoʻopili ʻana a me ke ʻano kumu e like me ka sliding bearing, ʻaʻole e pili ka pilina ma waena o ia hoʻopili ʻana a me ke kumu no ka nui o ka friction a me ka ʻaʻahu, no ka mea, aia ke kiʻiʻoniʻoni wai i ka manawa like, ʻo ka paʻi ʻana a me ka manawa o ka pahu valve i kahi kūlana sila. ʻO ka hopena packing Labyrinth e pili ana i ka pae maʻemaʻe o ke kumu ʻaʻole hiki ke piʻi i ka micro level, ʻo ka paʻi ʻana a me ke kumu valve he ʻāpana ʻāpana wale nō a ʻaʻole kūpono loa, ʻo ka paʻi ʻana a i nā manawa a pau he wahi liʻiliʻi loa ma waena o ke kumu valve, a no ka mea o ka incision asymmetry ma waena o ka hoʻopili ʻana i ka hui ʻana, ua hana kēia mau āpau i kahi maze me ka hui pū ʻana, waena, kahi e hoʻopaʻa ai i nā throttling he nui, e iho i lalo, a hiki i ke kuleana o ke sila. ʻO ka hopena labyrinth e pili ana i ka valve stem packing seal surface level degere ʻaʻole hiki ke piʻi i ka micro level, ʻo ka liʻiliʻi liʻiliʻi ma waena o ke kumu a me ka paʻi ʻana he mea pono kēia, ʻaʻole hiki ke hoʻopau, inā mai kēia ʻano e hoʻomau i ka hoʻolālā packing, pinepine ʻole ka hopena. kūpono loa, ʻo ia ke kumu o nā kūlana kumu o ka leaka lewa a i ʻole ka leakage mana. He nui nā ʻano o ka hoʻopaʻa ʻana i ka media ma o ka hoʻopaʻa ʻana a me ke kumu leakage mechanical: corrosion gap leakage mechanism, porous leakage mechanism, power leakage mechanism, etc. nā mīkini leakage, a waiho ʻia ke ʻano hana hoʻomaikaʻi kūpono. ʻElua, ʻo ke ʻano packing maʻamau o kēia manawa a me ka noi 1, teflon pan aʻa Polytetrafluoroethylene pan aʻa i hana ʻia me ka POLYTETRAFluOROethylene DISPERsing resin maʻemaʻe ma ke ʻano he maka, hana mua ʻia me ka kiʻiʻoniʻoni maka, a laila ma o ka wili ʻana, ulana ʻia i loko o kahi aʻa pan ikaika. ʻO kēia KIND OF disk root me ka ʻole o nā mea hoʻohui ʻē aʻe, hiki ke hoʻohana ʻia i ka meaʻai, pharmaceutical, papermaking chemical fiber a me nā koi hoʻomaʻemaʻe kiʻekiʻe ʻē aʻe, a loaʻa i kahi ʻano corrosive ikaika ma ka valve, pump. Ka palena o ka noi: E hoʻohana i ka mahana ʻaʻole iʻoi aku ma mua o 260 ℃, e hoʻohana i ke kaomi ʻaʻole iʻoi aku ma mua o 20MPa, pH waiwai: 0-14. 2, hoʻonui i ka graphite disc aʻa Ua ʻike ʻia ka aʻa disk graphite disc maʻalahi me ka hoʻohana ʻana i ka uwea graphite maʻalahi i ulana ʻia ma ka puʻuwai. Loaʻa i ka aʻa disc graphite i hoʻonui ʻia i ka lubricity maikaʻi a me ka conductivity thermal, ka liʻiliʻi friction coefficient, versatility ikaika, palupalu maikaʻi, ikaika kiʻekiʻe, a me ka hopena pale i ka lāʻau a me ke koʻokoʻo. Ka palena o ka noi: E hoʻohana i ka mahana ʻaʻole iʻoi aku ma mua o 600 ℃, e hoʻohana i ke kaomi ʻaʻole iʻoi aku ma mua o 20MPa, pH waiwai: 0-14. 3. Hoʻonuiʻia ka graphite coil root ʻO ka graphite coil i hoʻonuiʻia e ulanaʻia e ke aniani fiber, uea keleawe, uea kuhiliʻole, uea nickel, uea nickel alloy caustic a me nā mea'ē aʻe i hoʻoikaikaʻia e ke kaula graphite maʻemaʻe i hoʻonuiʻia. Me nā hiʻohiʻona o ka graphite hoʻonui, a me ka versatility ikaika, palupalu maikaʻi, ikaika kiʻekiʻe. Hoʻohui ʻia me nā aʻa braided maʻamau, ʻo ia kekahi o nā mea hoʻopili maikaʻi e hoʻoponopono ai i ka pilikia o ke kiʻekiʻe wela a me ke kiʻekiʻe kiʻekiʻe sealing. Ka palena o ka noi: ʻAʻole ʻoi aku ka mahana o ka hana ma mua o 550 ℃, ʻaʻole i ʻoi aku ka nui o ka hana ma mua o 32MPa, ka waiwai pH: 0-14. ʻO ke kumu diski kahi mana i hoʻonui ʻia o ke aʻa disk graphite i hoʻonui ʻia, kahi mea hoʻopaʻa sila maikaʻi loa. ʻO ka papa inoa ma luna nei kekahi mau ʻano maʻamau o ka packing disc root. Ma ke kaʻina hana maoli, e loaʻa nā ʻano ʻē aʻe o ka packing disc root i kūkulu ʻia no nā kūlana hana kūikawā. No ka laʻana, maikaʻi kemika kū'ē o aramid fiber coil root; He kūpono no ka haawe kiʻekiʻe rotation axis arylon carbon fiber mixed coil root, etc., ua kaupalena ʻia kēia pepa i ka lewa, ʻaʻole kahi kikoʻī kikoʻī. ʻEkolu, ʻano hoʻopili paʻi valve maʻamau a me ke koho ʻana ʻO ka hoʻonohonoho ʻana o ke sila hoʻopaʻa paʻi maʻamau i haku ʻia me ka pā kaomi, gland, spacer a me ka packing. I mea e hoʻokō ai i ka hopena sealing maikaʻi, koi ʻia ka paʻi ʻana e loaʻa i kahi ʻano paʻa, paʻa paʻa kemika maikaʻi, haʻahaʻa friction coefficient. Ma keʻano laulā, ʻoi aku ka haʻahaʻa o ka mahana ma mua o 200 ℃, koho pinepine ʻia ka mea hoʻopihapiha polytetrafluoron disc root, nona nā ʻano o ka lubrication kiʻekiʻe, non-viscosity, insulation uila a me ke kūpaʻa ʻelemakule maikaʻi, a hoʻohana ʻia i ka petroleum, chemical, pharmaceutical a me nā mea ʻē aʻe. nā mahinaʻai. Ua koho ʻia ka aʻa disk Graphite no kona kūpaʻa wela kiʻekiʻe, ka lubrication ponoʻī a me ka coefficient friction haʻahaʻa i nā mahana mai 200 a 450. Ua hoʻomohala ʻia ka disc graphite e like me ka hoʻohana ʻana i nā ʻano hoʻohālikelike, i ka hoʻohana pono ʻana, hiki ke koho ʻia nā mea hoʻopihapiha e like me ka ʻO nā kūlana hana maoli o ke ʻano kūpono o ka disc graphite, e like me 250 ℃, hiki i nā kūlana haʻahaʻa ke koho i ka disc graphite i hoʻonui ʻia, hiki ke koho i ka disc graphite i hoʻonui ʻia a i ʻole kahi hui o nā mea ʻelua. ʻEhā, kiʻekiʻe wela kiʻekiʻe kiʻekiʻe kiʻekiʻe kiʻekiʻe hoʻopaʻa leakage kālailai ana ma lalo o ke kiʻekiʻe wela kūlana, e like me ke koho ana o ka graphite disc aʻa hana sila, ua maʻalahi ke ike leakage. ʻO nā kumu penei: Hoʻokomo ʻia ka aʻa disk graphite i loko o ka pahu hoʻopili, a hoʻohana ʻia ke kaomi axial ma ka paʻi ʻana ma o ka hoʻopaʻa ʻana i ka pahu hoʻopaʻa ma ka pahu packing. No ka mea, loaʻa i ka packing kahi pae o ka plasticity, kaomi axial ma hope o ke kaomi radial a me ka micro deformation, pili pono ka lua o loko a me ke kumu, akā ʻaʻole like kēia kūpono i luna a i lalo. E like me ka mahele ʻana o ka paʻi paʻi a me ka packing sealing ikaika, hiki ke ʻike ʻia ʻaʻole like ke kaomi o ka paʻi kiʻekiʻe a me ka paʻi haʻahaʻa i loko o ka pahu pahu. ʻAʻole kūlike ka hoʻololi ʻana o ka plastic o nā ʻāpana ʻelua o ka paʻi, a maʻalahi ka hoʻopaʻa nui ʻana a i ʻole ka lawa ʻole o ka hoʻopaʻa ʻana ma waena o ka paʻi a me ke kumu valve. I ka manawa like, ʻoi aku ka nui o ka paio ma waena o ka paʻi a me ka puʻupuʻu valve i ka wā e nui ai ka ikaika hoʻoemi radial kokoke i ka gland, a maʻalahi ke ʻaʻahu ʻana i ka pahu valve a me ka paʻi ʻana ma ʻaneʻi. I ka hihia o ka wela kiʻekiʻe, ʻoi aku ka kiʻekiʻe o ka mahana, ʻoi aku ka nui o ka hoʻonui ʻia ʻana o ka aʻa disc graphite, piʻi pū ka friction, ʻo ka hoʻoheheʻe ʻana o ka wela ma muli o ka wela kiʻekiʻe ʻaʻole i kūpono i ka manawa, e hoʻolōʻihi i ka nui o ka ʻaʻahu a me ka hoʻopili ʻana, ʻo ia hoʻi ka mea nui. ke kumu o ka leakage o ka pahu kiʻekiʻe wela. ʻElima, kiʻekiʻe wela kiʻekiʻe kiʻekiʻe packing hoʻolālā hoʻolālā hoʻomaikaʻi ʻana i ka valve packing ma lalo o nā kūlana wela kiʻekiʻe e maʻalahi loa i ka leakage, a ʻo ka paʻi wela kiʻekiʻe e hoʻokumu ʻia ma luna o ka disc graphite i hoʻonui ʻia. ʻO ka lubricity ponoʻī a me ka pehu ʻana o ka paʻi graphite i hoʻonui ʻia, he kiʻekiʻe ka rebound coefficient, akā he palupalu ka hemahema, ʻaʻohe pale pale, hoʻokomo pinepine ʻia ma ka ʻaoʻao waena o ka pahu pahu, e pale ai i ka hoʻonui ʻia ʻana o ka graphite packing e ka packing gland. a me ka pōʻino extrusion papa kaomi lalo; Hiki ke hoʻokomo ʻia ke aʻa disc graphite i hoʻonui ʻia ma luna a me lalo no ka mea aia i loko o ka uwea nickel a ikaika a pale i ka extrusion. ʻOiai ʻo ka hui pū ʻana o ka graphite i hoʻonui ʻia a me ka disc graphite i hoʻonui ʻia e hoʻonā i kahi ʻāpana o ka leakage packing i ka wela kiʻekiʻe. Akā, no ka hana kiwikā ua oi pinepine hana kūlana, graphite disc aʻa aaʻaʻaʻaʻa ua mea kiʻekiʻe, ka hoʻohana 'ana i kekahi manawa ma hope o ka pono e tighten i ka hoʻopaʻa bolts ma ka stuffing pahu, no ka manuale a me ka nānā 'ana ua lawe mai i ka pilikia nui. Ma muli o ka noʻonoʻo ʻana i ka pilikia ma luna, ua hui pū mākou me nā palapala ma ka home a me nā ʻāina ʻē a me ka ʻike i hōʻiliʻili ʻia i nā makahiki i hala iho nei e hoʻomohala i kahi hoʻolālā packing valve compensating, ʻoi aku hoʻi no nā kūlana hana like ʻole, ke kiʻekiʻe kiʻekiʻe a me ka haʻahaʻa haʻahaʻa a me ke kiʻekiʻe kiʻekiʻe a me ke kiʻekiʻe kiʻekiʻe, ka ka hoʻomohala ʻana o nā ʻano hoʻolālā kiʻekiʻe kiʻekiʻe i manaʻo ʻia, hoʻoponopono i ka valve ma lalo o ke kūlana o ka leakage wela kiʻekiʻe. ʻO ke ʻano wela kiʻekiʻe a me ke ʻano haʻahaʻa haʻahaʻa, me ka hoʻohana ʻana i ka pūnāwai apo compensatory kūikawā a me ka hui pū ʻana o ke kumu graphite disc. ʻAʻole kiʻekiʻe ke kaomi hana, no laila ua kāpae ʻia ka lima packing. Hoʻohui ʻia ka pūnāwai apo compensatory kūikawā i lalo o ka pahu hoʻopiha. I ke kau ʻana, pono e hoʻopaʻa ʻia nā bolts me kahi preload. ʻOiai inā ʻike ʻia ka paʻi graphite a me ke kumu i ka ʻaʻahu frictional, hiki i ka pūnāwai apo ke hana koke i ka hoʻoponopono uku e hōʻoia i ka leakage o ka valve. ʻAno kiʻekiʻe wela a me ke kaomi kiʻekiʻe, ʻo ia ke ʻano o ka ʻōnaehana packing kiʻekiʻe, hoʻohana i ka puna disc a hoʻolei i ka pūnāwai i waho o ka hoʻolālā uku pālua, hiki ke pale aku i ka pono o ke kiʻekiʻe wela disable spring, kēia ʻano ʻano, ʻoi aku ka nui o ka wela, ke kaomi kiʻekiʻe. ʻO ka hāʻule ʻole o ka helu uku ma kekahi wahi, ʻoi aku ka maikaʻi o kekahi hui o ka uku, ʻaʻole ke keakea ʻana, uku hoʻokahi akā i ka manawa like no ka hana packing. Hoʻomaʻamaʻa ka disc spring seal i ka hoʻohana ʻana i nā kūlana o waho, a ʻo ke ʻano o waho o nā helu uku ʻelua e hoʻomaʻamaʻa i ka hoʻololi ʻana me ka ʻole o ka wehe ʻana i ka pahu pahu piha, e hoʻomaikaʻi i ka pono a me ka maʻalahi o ka hana. Ma hope o ka nānā ʻana i ka mea hoʻohana lōʻihi, ʻike ʻia kēia ʻano o ka hoʻopili ʻana no ka wela kiʻekiʻe, ka hoʻopaʻa ʻana i ke koʻokoʻo kiʻekiʻe e pale i ka hopena leakage, ʻike ʻia ke ola lawelawe lōʻihi.