Izinhlobo Zokumboza Ama-Electromagnetic Flow Meters

Isingeniso

Amamitha okugeleza kagesizibalulekileizinsimbi zomculoukuze kulinganiswe ukugeleza koketshezi oluqhubayo ezisetshenziswa eziningi zezimboni. Ulwelwesi lwemitha yokugeleza kagesi lusebenza imisebenzi eminingi ebalulekile. Lusebenza njengesivikelo phakathi kwama-electrode noketshezi, luvikela ama-electrode ekugqwaleni futhi luqinisekise ukulinganiswa okunembile. Ngaphezu kwalokho, luvikela udonga lwangaphakathi lomzimba wemitha yokugeleza emiphumeleni engaba ukuguguleka noma ukugqwala koketshezi. Izinhlobo ezahlukene zolwelwesi zenzelwe ukuhlangabezana nezidingo ezahlukahlukene zoketshezi oluhlukahlukene kanye nezimo zokusebenza.

Izinto Zokwenza Ulwelwesi Oluvamile

1. Ama-lining enjoloba

 

• Irabha Yemvelo
  • Irabha yemvelo iyindlela yokwelulela engabizi kakhulu. Inokuguquguquka okuhle, okuvumela ukuthi imelane nokucindezeleka okuthile kwemishini ngesikhathi sokufakwa nokusebenza. Ifanelekela ukulinganisa uketshezi olunezinga lokushisa eliphansi, ngokuvamile olufinyelela cishe ku-60 - 80°C. Irabha yemvelo nayo imelana nezixazululo eziningi zamanzi ezivamile, okwenza kube ukukhetha okuthandwayo kokusetshenziswa ezimbonini zokuhlanza amanzi namanzi angcolile. Isibonelo, esitshalweni sokuhlanza amanzi angcolile sikamasipala, amamitha okugeleza kagesi anerabha yemvelo angasetshenziswa ukukala ukugeleza kwendle eluhlaza, lapho uketshezi lungase luqukathe ezinye izinto eziqinile ezilengisiwe kanye nezinto ezahlukahlukene zamakhemikhali emazingeni okushisa aphakathi.
• Irabha ye-Neoprene
  • Irabha ye-Neoprene inikeza ukumelana kwamakhemikhali okuthuthukisiwe uma kuqhathaniswa nerabha yemvelo. Ingamelana nokusebenza kwamafutha, uphethiloli, kanye namakhemikhali amaningi. Amamitha okugeleza kagesi ane-Neoprene avame ukusetshenziswa ezisetshenziswa ezimbonini lapho uketshezi lungathintana nezinto ezinjalo. Isibonelo, embonini yokukhiqiza izimoto, lapho kulinganiswa ukugeleza koketshezi olupholile olungaqukatha izinto ezilwa nokuqandisa nezinye izithasiselo, ulwelwesi lwe-neoprene lunikeza isivikelo esithembekile. Izinga lokushisa lamamitha ane-neoprene ngokuvamile liphakeme kancane kunelamarabha emvelo, lifinyelela cishe ku-80 - 100°C.
• Irabha ye-Butyl
  • Irabha ye-butyl inamandla kakhulu okungenwa amagesi kanye nomhwamuko wamanzi. Imelana kakhulu nokuhlaselwa ngamakhemikhali, ikakhulukazi ama-acid nama-alkali. Lokhu kuyenza ifaneleke ukusetshenziswa lapho uketshezi lubola khona kakhulu. Embonini yamakhemikhali, lapho kulinganiswa ukugeleza kwezixazululo ze-asidi eqinile noma ze-alkali, amamitha okugeleza kagesi ane-butyl rubber ahlanganiswe ne-butyl rubber ayisinqumo esithandwayo. Angasebenza emazingeni okushisa asukela ku--40°C kuya ku-120°C, ahlinzeka ngefasitela elibanzi lokushisa lokusebenza kwezinqubo ezahlukene zezimboni.

2. Ama-Lining epulasitiki

 

• I-Polyvinyl Chloride (i-PVC)
  • I-PVC iyinto esetshenziswa kakhulu epulasitiki. Ayibizi kakhulu futhi inikeza ukumelana okuhle kwamakhemikhali kumakhemikhali amaningi avamile. Amamitha okugeleza kagesi ahlanganiswe nge-PVC afanele ukusetshenziswa embonini yokudla neziphuzo, njengoba i-PVC ingenabo ubuthi futhi ihambisana nezindinganiso zokuhlanzeka ezifanele. Isibonelo, esitshalweni sokukhiqiza ijusi yezithelo, amamitha okugeleza ahlanganiswe nge-PVC angasetshenziswa ukukala ukugeleza kwejusi ngesikhathi senqubo yokukhiqiza. Kodwa-ke, i-PVC inobubanzi bokushisa obulinganiselwe, ngokuvamile obufika cishe ku-60 - 70°C.
• I-Polyethylene (PE)
  • I-PE, ikakhulukazi i-polyethylene enobukhulu obuphezulu (i-HDPE), yaziwa ngokuqina kwayo kanye nokumelana namakhemikhali. Amamitha okugeleza kagesi ane-HDPE avame ukusetshenziswa ezindaweni lapho uketshezi lungase luqukathe izinhlayiya ezihuquzelayo. Embonini yezimayini, lapho kulinganiswa ukugeleza kwe-slurry (ingxube yamanzi nezinhlayiya eziqinile), ulwelwesi lwe-HDPE lungamelana nokukhuhlana okubangelwa yizinhlayiya eziqinile. Amamitha ane-PE angasebenza emazingeni okushisa afinyelela ku-80 - 90°C, kuye ngebanga elithile le-polyethylene.
• I-Polytetrafluoroethylene (PTFE)
  • I-PTFE iyipulasitiki esebenza kahle kakhulu enokumelana okuvelele kwamakhemikhali. Ingamelana cishe nawo wonke amakhemikhali, okuhlanganisa ama-asidi aqinile, ama-alkali, kanye nezinyibilikisi eziphilayo. Amamitha okugeleza kagesi ahlanganiswe nge-PTFE asetshenziswa ezindaweni ezigqwala kakhulu, njengasembonini yemithi lapho kulinganiswa izixazululo zamakhemikhali ezisabela kakhulu. I-PTFE futhi ine-coefficient ephansi kakhulu yokungqubuzana, okusiza ukunciphisa ukunamathela koketshezi kulwelo, okuqinisekisa ukulinganiswa okunembile kokugeleza. Ububanzi bokushisa bamamitha ahlanganiswe nge-PTFE bubanzi impela, kusukela ku-200°C kuya ku-260°C, okwenza ifaneleke ezinhlotsheni ezahlukene zokushisa ezibucayi.

3. Izindwangu zobumba

 

• I-Alumina Ceramics
  • I-Alumina ceramics iqinile kakhulu futhi imelana nokuguguleka. Ilungele ukusetshenziswa lapho uketshezi luqukethe izinhlayiya ezihuquzelayo kakhulu. Embonini yesimende, isibonelo, lapho kulinganiswa ukugeleza kwe-slurry yesimende, equkethe izinhlayiya zesimende ezihuquzelayo, amamitha okugeleza kagesi e-alumina ceramic anganikeza isevisi ethembekile yesikhathi eside. I-Alumina ceramics nayo inokumelana okuhle kwamakhemikhali, ikakhulukazi kuma-acid nama-alkali emazingeni okushisa aphezulu. Ingamelana namazinga okushisa afinyelela cishe ku-1000°C, okwenza ifaneleke ezinqubweni zezimboni ezishisa kakhulu.
• I-Zirconia Ceramics
  • I-Zirconia ceramics inikeza izakhiwo ezinhle kakhulu zemishini kanye nokuqina kwamakhemikhali. Zimelana kakhulu nokushaqeka kokushisa uma kuqhathaniswa nezinye izinto ze-ceramic. Amamitha okugeleza kagesi ane-Zirconia asetshenziswa ezisetshenziswayo lapho uketshezi lungaba nokushintsha okusheshayo kokushisa. Embonini yokukhiqiza ingilazi, lapho kulinganiswa ukugeleza koketshezi oluhlobene nengilazi encibilikisiwe, ulwelwesi lwe-zirconia ceramic lungaphatha indawo enokushisa okuphezulu kanye nolaka lwamakhemikhali, kanye nokucindezeleka kokushisa okungenzeka ngesikhathi senqubo.

Izinto Okufanele Uzicabangele Zokukhetha

Uma ukhetha uhlobo lwendwangu yokugqokaimitha yokugeleza kagesi, kunezinto eziningana okudingeka zicatshangelwe. Uhlobo loketshezi, okuhlanganisa ukwakheka kwamakhemikhali alo, izinga lokushisa, ingcindezi, kanye nokuba khona kwezinhlayiya eziklwebhayo, kubalulekile. Kuketshezi oluklwebhayo kakhulu, kungadingeka izinto ezifana ne-PTFE noma izinto ezithile zobumba. Ekusetshenzisweni koketshezi oluklwebhayo, ama-lining amelana nokuguguleka njengerabha (ezimweni ezingaklwebhayo kakhulu) noma izinto zobumba ayathandwa. Imikhawulo yokushisa kanye nengcindezi yezinto zobumbayo kumele ihambisane nezimo zokusebenza zemitha yokugeleza. Ngaphezu kwalokho, ukusebenza kahle kwezindleko kanye nokuhambisana nohlelo lonke, okuhlanganisa ama-electrode kanye nomzimba wemitha, kufanele kucatshangelwe.

Ekugcineni, ukukhetha uhlobo olufanele lwendwangu yokugqokaimitha yokugeleza kagesikuyisinqumo esibalulekile esithinta ngqo ukusebenza, ukuqina, kanye nokunemba kokulinganiswa kokugeleza kwezimboni ezahlukene. Ngokucabangela ngokucophelela izici zoketshezi kanye nezimo zokusebenza, izinto zolwelo ezifanele kakhulu zingakhethwa ukuqinisekisa ukusebenza okuthembekile nokuphumelelayo kwemitha yokugeleza kagesi.