Butterfly valve ruzivo hurukuro

Mumakore makumi matatu, thebutterfly valveyakagadzirwa muUnited States, yakaunzwa kuJapan mu50s, uye yakashandiswa zvakanyanya muJapan muma60s, uye yakasimudzirwa muChina mushure me70s. Parizvino, butterfly mavharuvhu pamusoro peDN300 mm munyika zvishoma nezvishoma akatsiva gedhi mavharuvhu. Kuenzaniswa negedhi mavharuvhu, butterfly mavharuvhu ane pfupi kuvhura uye kuvhara nguva, diki kushanda torque, diki yekuisa nzvimbo uye kureruka uremu. Kutora DN1000 semuenzaniso, butterfly valve inenge 2T, uye gedhi regedhi rinenge 3.5T, uye butterfly valve iri nyore kusanganiswa nemhando dzakasiyana-siyana dzekutyaira, nekugara kwakanaka uye kuvimbika.

Kukanganisa kwechisimbiso cherubhabutterfly valvendeyokuti kana ichishandiswa kubvongodza, cavitation ichaitika nekuda kwekushandiswa kusina kunaka, izvo zvichaita kuti chigaro cherubha chibvise uye kukuvara. Mumakore achangopfuura, China yakagadzirawo simbi yakavharwa butterfly mavharuvhu, uye mumakore achangopfuura, Japan yakagadzirawo muzinga-shavi mavharuvhu ane cavitation resistance, yakaderera vibration uye yakaderera ruzha.

Hupenyu hwesevhisi yechigaro chekuisa chisimbiso makore gumi nemashanu-20 erabha uye 80-90 makore esimbi pasi pemamiriro akajairika. Zvisinei, kuti ungasarudza sei zvakarurama zvinoenderana nezvinodiwa zvemamiriro ekushanda.

Hukama huri pakati pekuvhurwa kwe abutterfly valveuye mwero wekuyerera wakanyanya mutsara uye wakaenzana. Kana ikashandiswa kudzora chiyero chekuyerera, hunhu hwayo hwekuyerera hune hukama zvakanyanya nekuyerera kwepiping, senge dhayamita uye chimiro chevhavha akaiswa mumapaipi maviri akafanana, uye pombi yekurasika coefficient yakasiyana. , uye kuyerera kwevhavha kuchave kwakasiyana kwazvo.

Kana vheji iri mumamiriro ekukura kukuru, kumashure kweplate yevhavha inotarisana ne cavitation, uye pane mukana wekukuvadza valve, saka inowanzoshandiswa kunze kwe15 °.

Kana shavishavi vharafu iri pakati kuvhura, kuvhura chimiro chinoumbwa nevharafumuviri uye nechekumberi kwendiro yeshavishavi zviri pakati pevharuvhu, uye mativi maviri anoumba nyika dzakasiyana, kumucheto kweshavishavi ndiro kune rimwe divi kunofamba nenzira inoyerera mvura, uye rimwe divi rinofamba richipesana nekwarinoenda. yemvura inoyerera, saka, muviri wevharuvhu kune rimwe divi uye ndiro yevharuvhu inoumba kuvhurika kwakafanana nemhuno, uye rimwe divi rakafanana nekuvhurika kwakaita gomba, iro divi remuromo rinokurumidza kupfuura iro throttle side, uye kudzvinyirira kwakashata kuchagadzirwa pasi pevhavha yedivi, uye chisimbiso cherubha chinowanzodonha.

Iyo torque inoshanda yevhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhashahushata, nekuda kwekusiyana kwekuvhura uye kuvhura nzira yevharuvhu, kukosha kwayo kwakasiyana, uye horizontal butterfly valve, kunyanya iyo yakakura-diameter valve, nekuda kwekudzika kwemvura, torque inogadzirwa nemusiyano uripo. iyo yepamusoro uye yakadzika musoro wevhavha shaft haigoni kuregererwa. Uye zvakare, kana gokora rakaiswa padivi rekupinda mukati mevhavha, kuyerera kwekutenderera kunoumbwa, uye torque inowedzera. Kana vharuvhu iri pakati pekuvhura, iyo inoshanda sisitimu inoda kuvharika yega nekuda kwekuita kweiyo mvura inoyerera torque.