A vortex meter imhando ye volumetric flow meter inoshandisa chiitiko chemusikirwo chinoitika kana mvura ichiyerera ichitenderedza chinhu chisina kujeka.Vortex kuyerera kwemamita anoshanda pasi peiyo vortex shedding musimboti, uko mavhoti (kana maeddies) anodururwa achichinjika kuzasi kwechinhu.Kuwanda kwekudeuka kwevortex kwakanyatso kuenzana nevelocity yemvura inoyerera nepamita.
Vortex kuyerera kwemamita akanyatsokodzera kuyerwa kuyerwa uko kuiswa kwezvikamu zvinofamba zvinopa matambudziko.Iwo anowanikwa mumaindasitiri giredhi, ndarira, kana ese epurasitiki kuvaka.Sensitivity kune misiyano yemamiriro ekuita yakadzikira uye, isina zvikamu zvinofamba, yakaderera kupfeka kana ichienzaniswa nemamwe marudzi ekuyerera kwemamita.
Vortex Flow Meter Dhizaini
Iyo vortex inoyerera mita inowanzogadzirwa ne316 simbi isina tsvina kana Hastelloy uye inosanganisira bluff body, vortex sensor musangano, uye transmitter zvemagetsi - kunyangwe iyo yekupedzisira inogona zvakare kukwizwa kure (Mufananidzo 2).Iwo anowanzo kuwanikwa mumasaizi eflange kubva pa½ in. kusvika 12 mukati. Mutengo wakaiswa wemamita evortex unokwikwidzana neyeorifice metres muhukuru huri pasi pemainchi matanhatu.Wafer body metres (flangeless) ine mutengo wakaderera, nepo flanged metres inofarirwa kana iyo process fluid ine njodzi kana iri pakupisa kwakanyanya.
Bluff body shapes (square, rectangular, t-shaped, trapezoidal) uye zviyero zvakaedzwa kuti zvizadzise zvinodiwa.Kuyedzwa kwakaratidza kuti mutsara, yakaderera Reynolds nhamba kudzikiswa, uye kunzwa kune velocity profile kukanganisa zvinongosiyana zvishoma nebluff chimiro chemuviri.Muhukuru, iyo bluff body inofanira kuva nehupamhi iyo yakakura zvakakwana chikamu chepiipi dhayamita iyo inoyerera yese inobatanidzwa mukuteura.Chechipiri, iyo bluff body inofanira kunge iine micheto inotenderera kumusoro kwerukova kuti ugadzirise mitsetse yekuyerera kuparadzaniswa, zvisinei nekuyerera kweyero.Chechitatu, kureba kwemuviri webluff munzira yekuyerera kunofanirwa kunge kuri kuwanda kweiyo bluff body wide.
Nhasi, ruzhinji rwema vortex metres anoshandisa piezoelectric kana capacitance-mhando sensors kuona kudzvanywa kutenderedza muviri webluff.Aya ma detectors anopindura kune kudzvanywa oscillation ine yakaderera voltage inobuda chiratidzo ine iyo yakafanana frequency seyo oscillation.Masensa akadaro ane modular, asingadhure, anotsiviwa nyore, uye anogona kushanda pamusoro pemhando dzakasiyana dzetembiricha - kubva kune cryogenic zvinwiwa kusvika kune yakanyanya kupisa.Sensors inogona kuwanikwa mukati memuviri wemamita kana kunze.Masensa akanyorova anosimbiswa zvakananga nevortex pressure kuchinjika uye akavharirwa mumakesi akaomeswa kuti amirire corrosion uye erosion mhedzisiro.
Masensa ekunze, kazhinji piezoelectric strain gages, anonzwa kubuda kwevortex zvisina kunanga kuburikidza nesimba rinoiswa pashedder bar.Masensa ekunze anosarudzwa pane zvakanyanya erosive / corrosive application kudzikisa mutengo wekugadzirisa, nepo mukati ma sensors anopa zvirinani kutaridzika (zviri nani kuyerera senitivity).Ivowo havanyanyi kunzwa kune pombi vibrations.Imba yemagetsi inowanzo ratirwa kuputika uye kusapindira kwemamiriro ekunze, uye ine yemagetsi transmitter module, yekumisa kubatana, uye nesarudzo chiratidzo chekuyerera uye / kana totalizer.
Vortex Flow Meter Styles
Smart vortex metres inopa dhijitari yekubuda siginecha ine ruzivo rwakawanda pane kungoyerera mwero.Iyo microprocessor iri muflowmeter inogona kugadzirisa otomatiki kune isina kukwana yakatwasuka pombi mamiriro, kune misiyano pakati peiyo dhayamita yakabhowa uye iyo yematin.
Zvikumbiro uye Zvisingakwanisi
Vortex metres haiwanzo kukurudzirwa kubhenji kana zvimwe zvinopindirana kuyerera zvikumbiro.Izvi zvinodaro nekuti iyo dribble flow rate kuseta kweiyo batching station inogona kudonha pasi pemamita mashoma Reynolds nhamba muganho.Iyo diki iyo yakazara batch, inonyanya kukosha kukanganisa kunokonzeresa kungangove.
Low pressure (low density) magasi haaburitse simba rakakwana repressure pulse, kunyanya kana fluid velocities ari pasi.Nokudaro, zvingangoitika kuti mumasevhisi akadaro kuenzana kwemamita kuchava kwakashata uye kuderera kunoyerera hakuzogoni kuyerwa.Kune rimwe divi, kana kuderedzwa kuenzana kunogamuchirwa uye mita yakanyatso hukuru hwekuyerera kwakajairika, iyo vortex flowmeter inogona kuramba ichitariswa.
Nguva yekutumira: Mar-21-2024