Frequency converterchinhu chinodzora simba chinoshandura magetsi emagetsi kune imwe frequency nekushandisa on-off chiito chemagetsi semiconductor zvishandiso.Nekukurumidza kusimudzira kwemagetsi emagetsi tekinoroji uye microelectronics tekinoroji,high voltage uyehigh power frequency conversion speed regulation devicesramba uchikura, yepakutanga yave yakaoma kugadzirisa dambudziko remagetsi, mumakore achangopfuura kuburikidza nechirongwa chemidziyo kana unit unit chave mhinduro yakanaka.
Yakakwira voltage uye yakakwira simba chinja frequency kumhanya inoronga mudziyoinoshandiswa zvakanyanya mumigodhi mihombe yekugadzira chirimwa, petrochemical, mvura yemunisiparati, metallurgical simbi, simba remagetsi uye mamwe maindasitiri emarudzi ese emafeni, pombi, compressors, rolling michina uye zvichingodaro.
Mapombi anotakura, ayo anoshandiswa zvakanyanya mumaindasitiri akadai sesimbi, indasitiri yemakemikari, simba remagetsi, kupihwa kwemvura yemunisiparati uye migodhi, inosvika makumi mana muzana ekushandiswa kwesimba remidziyo yese yemagetsi, uye bhiri remagetsi rinotora makumi mashanu muzana muzana. mutengo wekugadzirwa kwemvura mumabasa emvura.Izvi zvinodaro nekuti: kune rumwe rutivi, midziyo inowanzogadzirwa neimwe margin;Kune rumwe rutivi, nekuda kwekuchinja kwemamiriro ekushanda, pombi inoda kubudisa mazinga akasiyana ekuyerera.Nekuvandudzwa kwehupfumi hwemusika uye otomatiki, kuvandudzwa kwedhigirii rehungwaru, kushandiswa kwehigh voltage frequency converteryekukurumidza kutonga kwepombi mutoro, kwete chete kuvandudza maitiro, kuvandudza chigadzirwa chemhando yakanaka, asiwo zvinodiwa zvekuchengetedza simba uye michina yekushanda kwehupfumi, inzira isingadzivisiki yekusimudzira kwakasimba.Pane zvakawanda zvakanakira kukurumidza kutonga kwepombi mitoro.Kubva pamienzaniso yekushandiswa, mazhinji acho akawana mhedzisiro yakanaka (imwe simba rekuchengetedza kusvika 30% -40%), ichidzikisa zvakanyanya mutengo wekugadzira mvura mumigero yemvura, kuvandudza dhigirii reotomatiki, uye inobatsira kune nhanho-pasi kushanda. yepombi uye pombi network, kuderedza kuvuza uye kuputika kwepombi, uye kuwedzera hupenyu hwebasa remidziyo.
Nzira uye nheyo yemitemo yekuyerera kwepombi yemhando yekutakura, Mutoro wepombi unowanzodzorwa nehuwandu hwekuyerera kwemvura inounzwa, saka nzira mbiri dzekutonga kwevhavha uye kukurumidza kutonga kunowanzoshandiswa.
1.Valve control
Iyi nzira inogadzirisa chiyero chekuyerera nekushandura saizi yekuvhura valve yekubuda.Iyo inzira yemuchina yave iripo kwenguva yakareba.Izvo zvakakosha zvekutonga kwevharuvhu ndeye kushandura saizi yekudzivirira kwemvura mupombi kuti ichinje kuyerera.Nekuti kumhanya kwepombi hakuna kuchinjika, musoro wayo hunhu curve HQ inoramba isina kuchinjika.
Kana vharuvhu yanyatsovhurika, pombi inopokana inoratidzira curve R1-Q uye musoro hunhu curve HQ inopindirana papoint A, chiyero chekuyerera iQa, uye pombi yekubuda yekumanikidza musoro iHa.Kana vharuvhu yadzikiswa, pombi kuramba hunhu curve inova R2-Q, mharadzano pakati payo uye musoro hunhu curve HQ inofamba ichienda kunongedza B, chiyero chekuyerera iQb, uye pombi yekubuda yekumanikidza musoro inokwira kuHb.Ipapo kuwedzera kwekumanikidza musoro ndeye ΔHb = Hb-Ha.Izvi zvinoguma nekurasikirwa kwesimba kunoratidzwa mumutsara usina kunaka: ΔPb = ΔHb×Qb.
2.Speed control
Nekushandura kukurumidza kwepombi kugadzirisa kuyerera, iyi ndiyo nzira yepamusoro yemagetsi yekudzora.Icho chakakosha chekudzora kumhanya ndechekushandura kuyerera kweyero nekushandura simba remvura inounzwa.Nekuti chete kumhanya kunoshanduka, kuvhurwa kwevharuvhu hakuchinje, uye iyo pombi yekudzivirira maitiro curve R1-Q inoramba isina kuchinjika.Musoro hunhu curve HA-Q pakumhanya yakayerwa inopindirana nepombi kuramba maitiro curve papoint A, kuyerera kuri Qa, uye musoro wekubuda ndiHa.Kana kukurumidza kuderera, musoro hunhu curve inova Hc-Q, uye mharadzano poindi pakati payo uye pombi kuramba hunhu curve R1-Q inodzika kuC, uye kuyerera kunova Qc.Panguva ino, inofungidzirwa kuti kuyerera kweQc kunodzorwa sekuyerera kweQb pasi pevhavha yekudzora mode, ipapo musoro wekubuda wepombi uchaderedzwa kusvika Hc.Nokudaro, musoro wekumanikidzika wakaderedzwa uchienzaniswa nevhavha yekudzora mode: ΔHc = Ha-Hc.Maererano neizvi, simba rinogona kuchengetwa se: ΔPc = ΔHc×Qb.Kuenzaniswa neiyo valve control mode, simba rakachengetwa ndere: P = ΔPb + ΔPc = (ΔHb-ΔHc) × Qb.
Kuenzanisa nzira mbiri idzi, zvinogona kuonekwa kuti munyaya yekuyerera kwakafanana, kukurumidza kudzora kunodzivirira kurasikirwa kwesimba kunokonzerwa nekuwedzera kwemusoro wekumanikidza uye kuwedzera kwepimbi yekupikisa pasi pekutonga kwevhavha.Kana chiyero chekuyerera chichideredzwa, kutonga kwekukurumidza kunokonzera kuti indenter ideredzwe zvakanyanya, saka inongoda kurasikirwa kwesimba kuduku kudarika kuvharwa kwevhavha kuti ishandiswe zvizere.
Thehigh voltage inverterinogadzirwa neNoker Electric inoshandiswa zvakanyanya mumafeni, pombi, mabhandi uye zvimwe zviitiko, uye simba rekuchengetedza simba riri pachena, iro rakazivikanwa nevatengi.
Nguva yekutumira: Jun-15-2023