2.5 Hoʻopili pahu
ʻO ka valve plug he pahu ia e hoʻohana ana i ke kino plug me kahi puka ma ke ʻano he wehe a pani ʻana, a ʻo ke kino plug e hoʻololi me ke kumu valve e loaʻa ai ka wehe a me ka pani ʻana.He ʻano maʻalahi ko ka valve plug, wehe wikiwiki a pani ʻia, hana maʻalahi, pale wai liʻiliʻi, liʻiliʻi nā ʻāpana a me ke kaumaha māmā.Loaʻa nā kiwi hoʻopili i nā ʻano ʻano pololei, ʻekolu a me nā ʻano ʻehā.Hoʻohana ʻia ka valve plug straight-through no ka ʻoki ʻana i ke kikowaena, a hoʻohana ʻia nā ʻāpana ʻekolu a me nā ala ʻehā no ka hoʻololi ʻana i ke ala o ka waena a i ʻole ka hoʻohuli ʻana i ke ala.
2.6Puka kupua
ʻO ka valve Butterfly kahi pā pele e hoʻohuli 90 ° a puni kahi axis paʻa i loko o ke kino valve e hoʻopau i ka hana wehe a pani.He liʻiliʻi ka nui o nā valve butterfly, māmā ke kaumaha a maʻalahi hoʻi i ke ʻano, he mau ʻāpana wale nō.
A hiki ke wehe a pani koke ʻia ma ka hoʻololi ʻana i ka 90 °, maʻalahi ke hana.I ka wā e wehe ʻia ai ka valve butterfly, ʻo ka mānoanoa o ka pā peʻapeʻa ke kūʻē wale nō i ka wā e kahe ai ka mea waena ma ke kino valve.No laila, liʻiliʻi loa ka hāʻule kaomi i hana ʻia e ka valve, no laila he mau hiʻohiʻona kaohi kahe maikaʻi.Hoʻokaʻawale ʻia nā kīwaha Butterfly i ʻelua ʻano sealing: elastic soft seal a me metal hard sila.Elastic sealing valve, hiki ke hoʻokomo ʻia ke apo sealing i loko o ke kino valve a i hoʻopili ʻia paha i ka ʻaoʻao o ka pā butterfly.He hana hoʻopaʻa maikaʻi a hiki ke hoʻohana ʻia no ka throttling, medium vacuum pipelines a me nā media corrosive.ʻOi aku ka lōʻihi o ke ola o nā pahu me nā sila metala ma mua o nā kiwi me nā sila elastic, akā paʻakikī ke hoʻokō i ka sila piha.Hoʻohana maʻamau ia i nā kūlana e loli nui ai ka kahe a me ka hāʻule ʻana o ke kaomi a pono ka hana throttling maikaʻi.Hiki i nā sila metala ke hoʻololi i nā mahana hana kiʻekiʻe, ʻoiai ʻo nā sila elastic ka hemahema o ka palena ʻia e ka mahana.
ʻO ka valve check he valve e hiki ke pale ʻokoʻa i ke kahe ʻana o ka wai.Wehe ʻia ka disc o ka valve check ma lalo o ka hana o ke kaomi wai, a kahe ka wai mai ka ʻaoʻao inlet a i ka ʻaoʻao puka.Ke emi iho ke kaomi ma ka ʻaoʻao inlet ma mua o ka ʻaoʻao puka, e pani koke ka pahu valve ma lalo o ke ʻano o ka ʻokoʻa o ke kaomi wai, kona ʻumekaumaha a me nā mea ʻē aʻe e pale ai i ka kahe ʻana o ka wai.E like me ke ʻano o ke ʻano, hiki ke hoʻokaʻawale ʻia i ka valve check valve a me ka swing check valve.ʻOi aku ka maikaʻi o ka hoʻopaʻa ʻana a me ke kūpaʻa wai o ke ʻano hāpai ma mua o ke ʻano koʻi.No ke komo ʻana o ka paipu hoʻoheheʻe ʻana o ka paila, pono e hoʻohana ʻia kahi pahu lalo.ʻO kāna hana ka hoʻopiha ʻana i ka paipu inlet pump me ka wai ma mua o ka hoʻomaka ʻana i ka paila;ma hope o ka hoʻokuʻu ʻana i ka pamu, e hoʻopiha i ka paipu komo a me ke kino pauma i ka wai e hoʻomākaukau ai no ka hoʻomaka hou ʻana.Hoʻokomo wale ʻia ka valve lalo ma ka paipu kūpaʻa ma ka puka pā, a kahe ka waena mai lalo a luna.
ʻO ka ʻāpana wehe a pani ʻana o ka valve diaphragm he diaphragm rubber, kahi i hoʻopaʻa ʻia ma waena o ke kino valve a me ka uhi valve.
Hoʻopaʻa ʻia ka ʻaoʻao waena o ka diaphragm ma ke kumu o ka valve, a ua hoʻopaʻa ʻia ke kino valve me ka lāʻau.No ka mea ʻaʻole i komo ka mea waena i ka lua o loko o ka uhi valve, ʻaʻole pono ka pahu valve i kahi pahu meaʻai.ʻO ka valve diaphragm he ʻano maʻalahi, hana hoʻopaʻa maikaʻi, mālama maʻalahi, a me ka haʻahaʻa haʻahaʻa o ka wai.Hoʻokaʻawale ʻia nā valve diaphragm i ke ʻano weir, ʻano pololei-ma, ʻano ʻākau ʻākau a me ke ʻano kahe pololei.
3. Hoʻohana mau ʻia nā ʻōlelo koho valve
3.1 ʻO nā ʻōlelo aʻoaʻo koho ʻīpuka
Ma lalo o nā kūlana maʻamau, pono e makemake ʻia nā ʻīpuka puka.Ma waho aʻe o ka kūpono no ka mahu, ka aila a me nā mea hoʻolaha ʻē aʻe, kūpono hoʻi nā kīwaha puka no ka media i loaʻa nā paʻa granular a me ka viscosity kiʻekiʻe, a kūpono hoʻi i nā kiwi i ka hoʻokuʻu ʻana a me nā ʻōnaehana haʻahaʻa haʻahaʻa.No ka media i loaʻa nā ʻāpana paʻa, pono e hoʻolako ʻia ke kino kīpē puka me hoʻokahi a ʻelua mau puka hoʻomaʻemaʻe.No ka media haʻahaʻa haʻahaʻa, pono e koho ʻia nā ʻīpuka kūikawā haʻahaʻa haʻahaʻa.
3.2 Nā ʻōlelo aʻoaʻo no ke koho ʻana i nā kiwi hoʻomaha
He kūpono ka valve stop no nā pipelines me nā koi lax i ke kūpaʻa wai, ʻo ia hoʻi, ʻaʻole i manaʻo nui ʻia ka nalowale o ke kaomi, a me nā pipeline a i ʻole nā mea hana me ke kiʻekiʻe kiʻekiʻe a me ke kiʻekiʻe.He kūpono ia no ka mahu a me nā pipelines waena me DN <200mm;hiki i nā kiwi liʻiliʻi ke hoʻohana i nā ʻoki ʻoki.ʻO nā kiwi, e like me nā kiwi nila, nā mea kani, nā kiwi hoʻohālike, nā kiwi paʻi kaomi, a pēlā aku;ʻO nā valve hoʻokuʻu he hoʻololi kahe a hoʻololi paha i ke kaomi, akā ʻaʻole koi ʻia ka pololei o ka hoʻoponopono ʻana, a he liʻiliʻi ke anawaena pipeline, no laila e hoʻohana ʻia kahi valve stop a throttling valve;No nā pāpaho ʻona loa, pono e hoʻohana ʻia kahi pahu pani i hoʻopaʻa ʻia i ka bellows;akā naʻe, ʻaʻole pono e hoʻohana ʻia ka pahu hoʻokuʻu no ka media me ka viscosity kiʻekiʻe a me ka media i loaʻa nā ʻāpana i hiki ke hoʻoheheʻe ʻia, ʻaʻole hoʻi e hoʻohana ʻia ma ke ʻano he puka makani a me ka valve ma kahi ʻōnaehana haʻahaʻa haʻahaʻa.
3.3 Nā ʻōlelo aʻoaʻo koho pāpaʻi pōkā
He kūpono nā kiwi pōleʻa no ka haʻahaʻa haʻahaʻa, kiʻekiʻe kiʻekiʻe, a kiʻekiʻe-viscosity media.Hiki ke hoʻohana ʻia ka hapa nui o nā kiwi pōpō i ka media me nā ʻāpana paʻa paʻa, a hiki ke hoʻohana ʻia i loko o ka pāpaʻi a me ka granular media e like me nā koi o ka sila;ʻAʻole kūpono nā kīpē pōleʻa piha no ka hoʻoponopono kahe, akā kūpono i nā manawa e koi ana i ka wehe wikiwiki a me ka pani ʻana, maʻalahi ke hoʻokō.ʻOkiʻoki ulia pōpilikia i nā pōʻino;ʻO ka mea maʻamau i ʻōlelo ʻia i nā pipelines me ka hoʻopaʻa paʻa ʻana i ka hoʻopaʻa ʻana, ka ʻaʻahu ʻana, nā kahawai shrinkage, nā neʻe wikiwiki a me ka pani ʻana, ka ʻoki ʻoki kiʻekiʻe (ka ʻokoʻa puʻupuʻu nui), ka leo haʻahaʻa, ke ʻano gasification, ka liʻiliʻi hana torque, a me ke kūpaʻa wai liʻiliʻi.E hoʻohana i nā kiwi pōpō;kūpono nā ʻūhā pōleʻa no nā hale māmā, nā ʻoki haʻahaʻa haʻahaʻa, a me nā media corrosive;ʻO nā kiwi pōleʻa ka mea kūpono loa no ka haʻahaʻa haʻahaʻa a me ka media cryogenic.No nā ʻōnaehana paipu a me nā mea hoʻohana me nā media haʻahaʻa haʻahaʻa, pono e hoʻohana ʻia nā kiwi pōpō haʻahaʻa haʻahaʻa me nā uhi pahu;koho I ka hoʻohana ʻana i ka pōlele lele lana, pono i kāna mea noho ke amo i ka haʻawe o ka pōleʻa a me ka mea hana.Pono ka ikaika nui o na kiwi poepoe anawaena nui i ka hana ana.Pono e hoʻohana i ka hoʻoili ʻana i nā ʻōpala me ka DN ≥ 200mm;kūpono nā kiwi pōpō paʻa no nā anawaena nui a me nā kūlana kiʻekiʻe;Eia kekahi, pono e loaʻa i nā kiwi pōpō i hoʻohana ʻia i nā pipelines no nā mea ʻawaʻawa a me ka media flammable e loaʻa i nā hale pale ahi a anti-static.
3.4 Nā ʻōlelo aʻoaʻo koho throttle valve
He kūpono ke kīpē throttle no nā manawa haʻahaʻa haʻahaʻa ke kiʻekiʻe o ke kiʻekiʻe.He kūpono ia no nā ʻāpana e pono e hoʻoponopono i ka kahe kahe a me ke kaomi.ʻAʻole kūpono ia no ka media me ka viscosity kiʻekiʻe a me nā ʻāpana paʻa, a ʻaʻole kūpono no ka hoʻohana ʻana ma ke ʻano he valve kaʻawale.
3.5 Hoʻopili i nā ʻōlelo kuhikuhi koho valve
He kūpono ke kīpē plug no nā manawa e pono ai ka wehe a me ka pani ʻana.ʻAʻole kūpono ia no ka mahu a me ka waena me ka wela kiʻekiʻe.Hoʻohana ʻia ia no ka waena me ka haʻahaʻa haʻahaʻa a me ka viscosity kiʻekiʻe, a ua kūpono hoʻi no ka mea waena me nā mea i hoʻokuʻu ʻia.
3.6 ʻO nā ʻōlelo aʻoaʻo koho valve butterfly
He kūpono nā ʻōpena Butterfly no nā kūlana me nā anawaena nui (e like me DN﹥600mm) a me ka lōʻihi o ka hoʻolālā pōkole, a me nā kūlana e koi ʻia ai ka hoʻoponopono kahe a me ka wehe wikiwiki ʻana a me ka pani ʻana.Hoʻohana maʻamau ia no ka wai, ka aila a me nā huahana hoʻoemi me nā mahana ≤80 ° C a me nā kaomi ≤1.0MPa.Ea a me nā mea ʻē aʻe;no ka mea, he nui ka poho o na kiwi pepeke e hoohalikeia me na kiwi puka a me na kiwi poepoe, kupono na kiwi pepeke no na nenoai paipu me na koi poho.
3.7 E nānā i nā ʻōlelo kuhikuhi koho valve
He mea maʻamau ka loaʻa ʻana o nā pahu hoʻopaʻa no ka media maʻemaʻe a ʻaʻole kūpono i ka media i loaʻa nā ʻāpana paʻa a me ka viscosity kiʻekiʻe.I ka DN ≤ 40mm, pono e hoʻohana ʻia kahi pahu hoʻokiʻekiʻe (e ʻae ʻia e kau ʻia ma nā paipu ākea);i ka DN = 50 ~ 400mm, pono e hoʻohana ʻia kahi swing lift check valve (hiki ke hoʻokomo ʻia ma nā paipu ākea a me ke kūpaʻa, inā hoʻokomo ʻia ma ka pipeline kū pono, pono ke kuhikuhi ʻana o ke kahe waena mai lalo a luna);i ka DN ≥ 450mm, pono e hoʻohana i ka pahu pahu pahu;i ka DN = 100 ~ 400mm, hiki ke hoʻohana ʻia kahi pahu wai wafer;he swing check valve Hiki ke hana i ka pahu hoʻihoʻi e loaʻa i ke kaomi hana kiʻekiʻe loa, hiki i ka PN ke piʻi i 42MPa, a hiki ke hoʻohanaʻia i kēlā me kēiaʻano hana a me ke ana wela hana ma muli o nā mea o ka pūpū a me nā sila.ʻO ke kikowaena ka wai, ka mahu, ke kinoea, ka corrosive medium, ka aila, ka lāʻau lapaʻau, a me nā mea ʻē aʻe.
3.8 Nā ʻōlelo aʻoaʻo e koho ai i ka valve diaphragm
He kūpono ka pahu diaphragm no ka aila, ka wai, ka media acidic a me ka media i loaʻa nā mea paʻa i hoʻokuʻu ʻia me ka mahana hana ma lalo o 200 ° C a me ke kaomi ma lalo o 1.0MPa.ʻAʻole kūpono ia no nā mea hoʻoheheʻe organik a me nā media oxidant ikaika.Pono e koho ʻia nā ʻūhā diaphragm ʻano weir no ka media granular abrasive.I ke koho ʻana i ka valve diaphragm ʻano weir, e nānā i kāna papa kuhikuhi ʻano kahe;pono e hoʻohana i nā kīwī diaphragm pololei i nā wai ʻeleʻele, nā slurries sima a me nā media precipitating;koe wale no nā koi kikoʻī, ʻaʻole pono e hoʻohana ʻia nā valve diaphragm i nā pipeline a me nā mea hoʻoheheʻe.
Ka manawa hoʻouna: Dec-08-2023
