ʻIkepili pilikia maʻamau haʻahaʻa haʻahaʻa kalapona hoʻopakele valve huahana ʻenehana hoʻolauna

ʻIkepili pilikia maʻamau haʻahaʻa haʻahaʻa kalapona hoʻopakele valve huahana ʻenehana hoʻolauna

Pono e hoʻopaʻa paʻa ʻia ka pahu i ʻoki ʻia e like me ka hiki
ʻO ka haʻahaʻa haʻahaʻa o ka leakage koi o ka valve ʻokiʻoki, ʻoi aku ka maikaʻi o ka leakage o ka valve seal palupalu ka haʻahaʻa, ʻoi aku ka maikaʻi o ka hopena o ka ʻoki ʻia, akā ʻaʻole hiki ke ʻaʻahu, maikaʻi ʻole ka hilinaʻi. Mai ka leakage a me ka liʻiliʻi, sealing a me ka hilinaʻi pālua maʻamau, ʻoi aku ka maikaʻi o ke sila palupalu ma mua o ke sila paʻakikī. E like me ka hana piha ultra-light regulating valve, sila ʻia a hoʻopaʻa ʻia me ka pale ʻana i ke alo o ka lole, hilinaʻi kiʻekiʻe, leakage rate o 10-7, ua hiki ke hoʻokō i nā koi o ka ʻoki ʻoki.
ʻAʻole hiki ke hoʻohana ʻia ka valve sila pālua e like me ka valve ʻoki ʻia
ʻO ka maikaʻi o ka spool valve noho ʻelua, ʻo ia ka mea e hiki ai i ka hoʻolālā ʻana o ka ikaika ke ʻokoʻa i ka nui o ka puʻe, ʻoiai ʻo kona hemahema koʻikoʻi ʻaʻole hiki ke hoʻopili maikaʻi ʻia nā papa hoʻopaʻa ʻelua i ka manawa like, e hopena i ka leakage nui. Inā hoʻohana ʻia a hoʻohana ikaika ʻia e ʻoki i ka manawa, ʻike maopopo ʻole ka hopena, ʻoiai inā ua hana ʻo ia i nā hoʻomaikaʻi he nui (e like me ka pahu paʻa lima sila pālua), ʻaʻole makemake ʻia.
He mea maʻalahi ka hoʻololi ʻana o ka valve noho ʻelua i ka wā e hana ana me ka wehe liʻiliʻi
No ke kumu hoʻokahi, i ka wā e kahe ana ke ʻano hāmama o ke kikowaena, maikaʻi ke kūpaʻa o ka valve; Ke pani ʻia ke kahe ʻana, ʻilihune ka paʻa o ka valve. ʻO ka valve noho lua he ʻelua spool, ʻo ka spool haʻahaʻa i loko o ke kahe i pani ʻia, ʻo ka spool luna i loko o ke kahe hāmama, no laila, i ka hana wehe liʻiliʻi, ua maʻalahi ke kahe ʻana o ke ʻano spool e hana i ka haʻalulu o ka valve, kēia. ʻO ia ke kumu i hiki ʻole ai ke hoʻohana ʻia ka valve noho pālua no ka hana wehe liʻiliʻi.
ʻAʻole maikaʻi ka hana anti-blocking o ka valve stroke pololei, a maikaʻi ka hana anti-blocking o ka valve stroke Angle.
ʻO ka spool pahupaʻi polopololei ke kuʻekuʻe kūʻokoʻa, a ʻo ke ʻano o ke kahe ʻana i loko a i waho o ke ala kahe o ke keʻena valve pono e hoʻi i hope, i lilo ai ke ala kahe o ka valve i mea paʻakikī (ke ʻano e like me ke ʻano S-type). Ma kēia ala, nui nā ʻāpana make, kahi e hāʻawi ai i ka manawa no ka ua o ka waena, a i ka wā lōʻihi, ke kumu o ka blockage. ʻO ka ʻaoʻao o ka Angle stroke valve throttling ʻo ia ka ʻaoʻao ākea, kahe ka mea i loko a i waho ma ka ʻaoʻao, a ua maʻalahi ka lawe ʻana i ka mea maʻemaʻe. I ka manawa like, he maʻalahi ke ala kahe, a he liʻiliʻi loa ka nui o ka ua, no laila ua maikaʻi ka hana ʻana o ka pahu Angle stroke.
No ke aha i ʻoi aku ka lahilahi o ka puʻu pahu hoʻomalu i ka hahau pololei?
Loaʻa ia i kahi loina mechanical maʻalahi: ʻāwili hoʻoheheʻe nui a me ka friction ʻōwili liʻiliʻi. ʻO ke ʻano o ka pahu pahu maʻi pololei i luna a i lalo, ʻo ka hoʻopili liʻiliʻi ʻana, e hoʻokomo i ka pahu pahu i ʻōwili ʻia a paʻa loa, e hoʻohua i kahi ʻokoʻa nui i hope. No kēia kumu, ua hoʻolālā ʻia ke ʻano o ka valve i mea liʻiliʻi loa, a ua hoʻohana maʻamau ʻia ka paʻi ʻana me kahi coefficient liʻiliʻi o friction PTFE packing, i mea e hōʻemi ai i ka ʻokoʻa hope, akā ʻo ka pilikia ʻo ia ka lahilahi o ka pahu valve, maʻalahi ke kulou. , a pōkole ke ola hoʻopaʻa ʻana. No ka hoʻoponopono ʻana i kēia pilikia, ʻo ke ala maikaʻi loa ka hoʻohana ʻana i ke koʻokoʻo huakaʻi huakaʻi, ʻo ia hoʻi, ka Angle stroke o ka valve stem, ʻo kona ʻōpala valve he 2 ~ 3 mau manawa ʻoi aku ka mānoanoa ma mua o ka paʻi pololei o ka pahu valve, a me ke koho o ka lōʻihi. -ʻO ka paʻi graphite ola, maikaʻi ka ʻoʻoleʻa kumu, lōʻihi ke ola packing, liʻiliʻi ka torque friction, liʻiliʻi ka hoʻihoʻi ʻokoʻa.
ʻOi aku ka nui o ka ʻokoʻa o ka ʻokoʻa o ka Angle stroke type valve
ʻO ka ʻokoʻa ʻokoʻa ʻokoʻa ʻokoʻa ka angular stroke type valve, no ka mea, he liʻiliʻi loa ka mea waena i ka spool a i ʻole ka pā pāpaʻi hopena ma ka rotation shaft torque, no laila, hiki iā ia ke kū i kahi ʻokoʻa nui.
ʻAʻole i hana ʻia nā kiwi kumu hoʻokahi - a me nā pahu noho ʻelua
ʻO ka pahu lima lima, i puka mai i ka makahiki 1960, ua hoʻohana nui ʻia ma ka home a ma waho i nā makahiki 1970. I loko o ka mea kanu petrochemical i hoʻokomo ʻia i nā makahiki 1980, ʻoi aku ka nui o ka pālima lima. I kēlā manawa, nui ka poʻe i manaʻoʻiʻo hiki i ka pahu lima ke hoʻololi i ka valve noho hoʻokahi a me ka lua a lilo i ka lua o nā huahana. I kēia lā, ʻaʻole kēia ka hihia, hoʻohana ʻia ka valve noho hoʻokahi, ka valve noho pālua, ka pahu lima lima. ʻO kēia ke kumu no ka hoʻomaikaʻi ʻana o ka valve lima i ke ʻano throttling, kūpaʻa a me ka mālama ʻana i ʻoi aku ka maikaʻi ma mua o ka valve noho hoʻokahi, akā ʻo kona kaumaha, ka pale ʻana a me nā leakage e kūlike me ka valve noho hoʻokahi a me ka lua, pehea e hiki ai ke hoʻololi i ka valve noho hoʻokahi a me ka lua. ? No laila, pono e kaʻana like.
ʻO ka hoʻoheheʻe ʻana i ka wai me ka hoʻohana ʻana i ka valve butterfly lined, fluorine lined diaphragm valve ke ola pōkole
Loaʻa ka haʻahaʻa haʻahaʻa o ka waiʻona a i ʻole alkali, ʻoi aku ka nui o ka corrosion i ka lāʻau. Hōʻike ʻia ka corrosion o ka rubber e ka hoʻonui, ka ʻelemakule a me ka ikaika haʻahaʻa. ʻAʻole maikaʻi ka hopena o ka hoʻohana ʻana i ka valve butterfly a me ka valve diaphragm i hoʻopaʻa ʻia me ka lāʻau. ʻO ka mea nui, ʻaʻole hiki ke pale i ka pala. Ma hope o ka hoʻomaikaʻi ʻia ʻana o ka valve lining diaphragm valve i ka corrosion resistance o ka fluorine lined diaphragm valve, akā ʻaʻole hiki i ka diaphragm o ka fluorine lined diaphragm valve ke kū i luna a lalo i ka pelu ʻana a me ka haki ʻana, e hopena i ka pōʻino mechanical, ʻoi aku ka pōkole o ke ola o ka pahu. I kēia manawa ʻo ke ala maikaʻi loa ʻo ka hoʻohana ʻana i ka wai hoʻomaʻamaʻa pōpō pōlele, hiki ke hoʻohana ʻia no 5 a 8 mau makahiki.
E ʻoi aku ka nui o ka hoʻohana ʻana i ka piston actuator pneumatic valve
No ka pneumatic valve, hiki i ka piston actuator ke hoʻohana piha i ke kaomi kumu ea, ʻoi aku ka liʻiliʻi o ka mea hana ma mua o ke kiʻiʻoniʻoni, ʻoi aku ka nui o ka pahu, ʻoi aku ka hilinaʻi o ka O-ring i ka piston ma mua o ke kiʻiʻoniʻoni, no laila e ʻoi aku ka maikaʻi. e hoʻohana hou aʻe.
He mea nui ke koho ma mua o ka helu
Hoʻohālikelike ʻia ka helu ʻana a me ke koho ʻana, ʻoi aku ka nui o ke koho, ʻoi aku ka paʻakikī. No ka mea he helu maʻalahi wale nō ka helu ʻana, ʻaʻole hilinaʻi ʻo ia iho i ke degere o ke ʻano, akā pili i ka pololei o nā ʻāpana kaʻina i hāʻawi ʻia. ʻO ke koho e pili ana i nā ʻike hou aku, kahi mālama ʻole, e alakaʻi i ke koho kūpono ʻole, ʻaʻole wale ke kumu o ka hoʻopau ʻana o ka manpower, nā kumu waiwai, nā kumu waiwai kālā, a ʻaʻole kūpono ka hoʻohana ʻana i ka hopena, lawe mai i nā pilikia hoʻohana, e like me ka hilinaʻi. , ola, maikaʻi hana, etc.
Ma ka ʻauinalā o Kepakemapa 1, ma ka "2010 Shanghai (Second) Water Industry Hot Forum" i hoʻokipa ʻia e China Water Network, Shanghai Municipal Engineering Design and Research Institute, nā ʻōpala o ke kūlanakauhale, Shanghai Municipal Drainage Co., LTD., a me China Association no ʻEpekema a me ʻenehana, Zhengzhou Zheng Butterfly valve Co., LTD. Ua hoʻolauna ʻo Zhao Guoxi i ka ʻenekini kiʻekiʻe o ka ikehu kalapona haʻahaʻa.

Ua hoʻolauna ʻo Zhao Guoxi i ʻekolu mau ʻano hou, ʻo ia hoʻi eccentric half ball valve, oblique seat hard seal slow closing check valve a me ke kaomi piha kiʻekiʻe kiʻekiʻe exhaust valve.

Hoʻohana ka eccentric hemisphere valve body i ka hoʻolālā pōpō, maikaʻi ka rigidity, kiʻekiʻe ka ikaika; Hoʻohana ka disc valve i ke ʻano hemispherical, hoʻohana ka pahu valve i ke ʻano semi-axial, a ʻo ka disc valve e hoʻololi i 90 ° ke pani piha a wehe ʻia. Ma ka moku'āina hāmama loa, komo ka disc valve i loko o ka lua kino, no laila ua wehe ʻia ke keʻena i loko o ka valve. ʻO ke kino o ka valve a me ka valve disc sealing surface, me ka hoʻohana ʻana i ka ʻenehana hoʻoheheʻe ʻana i ka alloy paʻakikī, kiʻekiʻe paʻakikī, kiʻekiʻe ke pale ʻana i ka ʻaʻahu, hiki ke ʻoki i ka metala waena a i ʻole nā ​​​​braid sundries; Hiki iā ia ke pale aku i ka ʻānai ʻana o ka slurry a i ʻole ka mea kahe granular. Hiki iā ia ke wehe 'akomi i ka lepo mai ka ili o ka sila. Hoʻohana ʻo Valve disc i ka hoʻolālā eccentricity nui, hoʻopaʻa i ka ʻili o ka frictionless wehe a pani ʻole, hoʻololi maʻalahi, ola lōʻihi. Hana ʻia ka sila valve shaft me ke apo graphite maʻalahi a i ʻole O-ring. Hiki ke hoʻololi a hoʻololi ʻia ka sila shaft me ka wehe ʻole ʻana i ka mea hoʻokele.

ʻO ka noho hoʻopaʻa paʻa paʻa paʻa paʻa paʻa paʻa lohi ka noho ʻana o ka pahu pahu, pōkole ka wehe ʻana a me ka pani pani ʻana, maikaʻi ka hana wehe a pani ʻana. ʻO ka pāpale Butterfly he papalua bias, kūpono ka wehe ʻana a me ka neʻe pani ʻana. Metala kila paʻa paʻa paʻa, lōʻihi lawelawe ola, mālama manuahi pani. Loaʻa nā hiʻohiʻona kahe maikaʻi o ke keʻena o ka valve chamber, ka liʻiliʻi o ke kahe ʻana a me ka mālama ʻana i ka ikehu. ʻO ka pani wikiwiki a me ka lohi, hiki ke pale pono i ka hāmare wai. ʻO ka pā kīpē/ʻaʻa puʻupuʻu e wehe a paʻa hiki ke loli, ʻaʻohe paʻa.

Loaʻa i ka pilikia o ka hoʻopau ʻana i ka wai, he mau makahiki i ka honua holoʻokoʻa pilikia, ma muli o ke kaomi ʻana i ka wai paipu hoʻopau i nā haumia, ka wai wai ʻelua kahe a me ka hana paʻa, ka hāmare wai ma ka pipeline cutoff bridge, kona kaomi pinepine a hiki i 200 ~ 400 m wai kolamu. , kekahi helu ʻenekinia, ʻaneʻane paha kilomika, lawa e hoʻopōʻino i kekahi * * degere o ka paipu wai. ʻO ka ʻoiaʻiʻo, ʻo nā papahana hoʻoili wai nui a me nā pōʻino paipu wai o ke kūlanakauhale he nui. Wahi a ka ʻikepili pili, ʻo nā kūlanakauhale nui o Kina e like me Beijing, Shanghai, Hong Kong a me nā mea ʻē aʻe o ka hoʻolako ʻana i ka wai paipu pūnaewele i ka makahiki he 2000 mau manawa, ʻo ka nui o ke kapikala o ke kaona o ka makahiki he 1000 mau manawa, ʻo ke kumu nui o ka wai ka pau. ʻaʻole manuahi. ʻO ke kumu o ka noiʻi ʻana e pili ana i ka piha piha piha o ka wikiwiki kiʻekiʻe ka hoʻopau ʻana i ka pilikia o ka hoʻopau ʻana o ka ea o ka paipu wai wai ʻaʻole maʻemaʻe a paʻa ʻole, a e hōʻemi a hoʻopau loa i ka maʻi paʻakikī o ka pipeline pipeline pipeline. pohā.

ʻO ke kaomi piha kiʻekiʻe kiʻekiʻe e hiki ke komo i loko o ka pipeline wai a me ka pae kinoea ma lalo o ka moku'āina hoʻokahi, ʻaʻole i hoʻopuka i "kākoʻo ea", hiki ke hoʻomau i ka kiʻekiʻe kiʻekiʻe o ka exhaust valve; ʻAʻohe pono no ka manual auxiliary exhaust, hiki ke kiʻekiʻe-wikiwiki hoʻokuʻu o kekahi paʻakikī paipu kinoea maoli 'akomi exhaust kiwikā; Loaʻa iā ia ka hana buffering e like me nā koi o ke kumumanaʻo pale hammer wai, a he hopena maikaʻi i ka pale ʻana i ka hoʻomaka ʻana o ka hāmare wai paila, hoʻōki i ka hāmare wai paila a hoʻopau i ka pōʻino o ka oscillation pressure pipeline; ʻOi aku ka maikaʻi a kūpono hoʻi ka sila hoʻopau, e lanakila ana i ka hemahema hana o ka valve exhaust maʻamau e holo pinepine i ka wai.