Mhando dzeMagetsi eElectromagnetic Flow Meters

Nhanganyaya

Mamita ekuyerera kwemagetsizvakakoshazviridzwaKuyera kuyerera kwemvura inofambisa mvura mumaindasitiri akasiyana-siyana. Mupendero wemuchina wemagetsi unoshanda mabasa akawanda akakosha. Unoshanda sechidziviriro pakati pemaelectrodes nemvura, uchidzivirira maelectrodes kubva mukuora uye uchivimbisa kuyerwa kwakarurama. Pamusoro pezvo, unodzivirira rusvingo rwemukati memuviri wemuchina wemagetsi kubva pamigumisiro inogona kukuvadza kana kukuvadza yemvura. Mhando dzakasiyana dzemupendero dzakagadzirirwa kusangana nezvinodiwa zvakasiyana-siyana zvemvura dzakasiyana-siyana nemamiriro ekushanda.

Zvinhu Zvakajairika Zvekuisa Mucheka

1. Machira erabha

 

• Rabha yechisikigo
  • Rabha yechisikigo isarudzo yejira rinodhura uye rinodhura. Rinochinjika zvakanaka, izvo zvinoita kuti rikwanise kutsungirira kushushikana kwemuchina panguva yekuiswa nekushanda. Rakakodzera kuyera mvura ine tembiricha yakaderera, kazhinji inosvika 60 - 80°C. Rabha yechisikigo inodzivirirawo mvura yakawanda, zvichiita kuti ive sarudzo yakakurumbira muindasitiri yekuchenesa mvura netsvina. Semuenzaniso, mufekitori yekuchenesa mvura yemuguta, mita yekuyerera yemagetsi yerabha yechisikigo inogona kushandiswa kuyera kuyerera kwetsvina isina kucheneswa, uko mvura yacho inogona kunge iine zvimwe zvinhu zvakasungirirwa uye zvinhu zvakasiyana-siyana zvemakemikari patembiricha iri pakati nepakati.
• Rabha reNeoprene
  • Rabha yeNeoprene inopa simba rekudzivirira makemikari zvakanyanya kana tichienzanisa nerabha yechisikigo. Inogona kudzivirira kushanda kwemafuta, mafuta, uye makemikari akawanda. Ma flow meter emagetsi ane Neoprene anowanzo shandiswa mumaindasitiri uko mvura inogona kusangana nezvinhu zvakadaro. Semuenzaniso, muindasitiri yekugadzira mota, pakuyera kuyerera kwemvura inotonhorera inogona kunge iine zvinhu zvinodzivirira kutonhora nezvimwe zvinowedzera, neoprene lining inopa dziviriro yakavimbika. Tembiricha yematembiricha eNeoprene ane neoprene inowanzo kwira zvishoma pane yerabha yechisikigo, kusvika pa80 - 100°C.
• Rabha yeButyl
  • Rabha yebutyl inogona kunyungudika zvakanaka nemagasi neutsi hwemvura. Inodzivirira zvakanyanya kurwiswa nemakemikari, kunyanya kubva kumaacid nealkali. Izvi zvinoita kuti ikwanise kushandiswa kana mvura yacho ichiora zvakanyanya. Muindasitiri yemakemikari, pakuyera kuyerera kweasidhi yakasimba kana mhinduro dzealkali, mita dzekuyerera kwemagetsi dzakagadzirwa nebutyl rabha isarudzo inofarirwa. Inogona kushanda patembiricha iri pakati pe -40°C kusvika 120°C, zvichipa mukana wakakura wekushanda kwetembiricha yekushanda kune akasiyana maindasitiri.

2. Mapeteni epurasitiki

 

• Polyvinyl Chloride (PVC)
  • PVC ipurasitiki inoshandiswa zvakanyanya. Haidhuri zvakanyanya uye inopa simba rekudzivirira makemikari akawanda akajairika. Mamita ekuyerera kwemagetsi ePVC akakodzera kushandiswa muindasitiri yezvikafu nezvinwiwa, sezvo PVC isina chepfu uye inoenderana nezvinodiwa zvehutsanana. Semuenzaniso, mufekitori yekugadzira muto wemichero, mamita ekuyerera ePVC anoshandiswa kuyera kuyerera kwemuto panguva yekugadzira. Zvisinei, PVC ine tembiricha shoma, kazhinji inosvika 60 - 70°C.
• Polyethylene (PE)
  • PE, kunyanya polyethylene ine density yakakwira (HDPE), inozivikanwa nekuoma kwayo uye kuramba kwayo makemikari. Mamita ekuyerera kwemagetsi ane HDPE anowanzo shandiswa mukushandiswa uko mvura yacho inogona kunge iine zvidimbu zvinogumbura. Muindasitiri yemigodhi, pakuyera kuyerera kweslurry (musanganiswa wemvura nezvidimbu zvakasimba), HDPE lining inogona kutsungirira kukuvadzwa kunokonzerwa nezvidimbu zvakasimba. Mamita ane PE anogona kushanda patembiricha inosvika 80 - 90°C, zvichienderana negiredhi chaiyo yepolyethylene.
• Polytetrafluoroethylene (PTFE)
  • PTFE ipurasitiki inoshanda zvakanaka ine simba guru rekudzivirira makemikari. Inogona kudzivirira makemikari ese, kusanganisira maasidhi akasimba, alkalis, uye organic solvents. PTFE - lined electromagnetic flow metres inoshandiswa munzvimbo dzinopisa zvakanyanya, senge muindasitiri yemishonga pakuyera mhinduro dzemakemikari dzinoshanda zvakanyanya. PTFE inewo coefficient yakaderera yekukweshana, iyo inobatsira kuderedza kunamira kwemvura ku lining, ichivimbisa kuyerwa kwakarurama kwekuyerera. Huremu hwetembiricha yePTFE - lined metres hwakafara, kubva - 200°C kusvika 260°C, zvichiita kuti ive yakakodzera kushandiswa kwakasiyana-siyana kwetembiricha-inonzwisisika.

3. Matanda eCeramic

 

• Zviumbwa zveAlumina
  • Zvigadzirwa zveAlumina zvakaoma uye zvinoramba kupera. Zvakanakira kushandiswa kana mvura yacho iine zvidimbu zvinokwesha zvakanyanya. Semuenzaniso, muindasitiri yesimende, kana uchiyera kuyerera kweslurry yesimende, ine zvidimbu zvesimende zvinokwesha, mita dzemagetsi dzinoyerera dzealumina ceramic dzinogona kupa basa rakavimbika kwenguva refu. Zvigadzirwa zveAlumina ceramics zvinewo makemikari akanaka, kunyanya acids nealkalis pakupisa kwakanyanya. Zvinogona kutsungirira tembiricha inosvika 1000°C, zvichiita kuti zvikodzere kushandiswa mumaindasitiri ane tembiricha yepamusoro.
• Zvisikwa zvesimbi zveZirconia
  • Zvigadzirwa zvesimbi zveZirconia zvine hunhu hwakanaka hwemakanika uye kugadzikana kwemakemikari. Zvinoramba zvakasimba kupiswa nekupisa zvichienzaniswa nezvimwe zvinhu zvesimbi. Zvigadzirwa zvesimbi zvemagetsi zveZirconia zvinoshandiswa mukushandiswa uko mvura inogona kuchinja tembiricha nekukurumidza. Muindasitiri yekugadzira magirazi, pakuyera kuyerera kwemvura ine chekuita negirazi rakanyungudutswa, zirconia ceramic lining inogona kubata mamiriro ekunze ane tembiricha yakakwira uye ine makemikari, pamwe nekushushikana kwekupisa kunogona kuitika panguva yekushanda.

Zvaunofanira Kufunga Nezvekusarudza

Pakusarudza rudzi rwejira remukatimita yekuyerera kwemagetsi, zvinhu zvakawanda zvinofanira kufungwa nezvazvo. Rudzi rwemvura, kusanganisira kuumbwa kwayo nemakemikari, tembiricha, kumanikidzwa, uye kuvapo kwezvidimbu zvinogumbura, zvakakosha. Kune mvura inogumbura zvakanyanya, zvinhu zvakaita sePTFE kana zvimwe zvigadzirwa zveceramic zvinogona kudiwa. Mukushandiswa kwemvura inogumbura, machira anodzivirira kupera akadai serabha (kune zvinhu zvisingagumbura zvakanyanya) kana zvigadzirwa zveceramic zvinofarirwa. Kuganhurirwa kwekupisa nekumanikidzwa kwezvinhu zve lining zvinofanirawo kuenderana nemamiriro ekushanda kwe flow meter. Pamusoro pezvo, kushanda kwemutengo uye kuenderana nehurongwa hwese, kusanganisira ma electrodes nemuviri we meter, zvinofanirwa kutariswa.

Mukupedzisa, kusarudzwa kwemhando yakakodzera yejira remukatimita yekuyerera kwemagetsichisarudzo chakakosha chinokanganisa zvakananga mashandiro, kugara kwenguva refu, uye kururama kwekuyera kuyerera mumashandisirwo akasiyana emaindasitiri. Nekunyatsoongorora hunhu hwemvura uye mamiriro ekushanda, zvinhu zvakakodzera zvemukati zvinogona kusarudzwa kuti zvive nechokwadi chekuti mita yekuyerera yemagetsi inoshanda zvakanaka uye yakavimbika.