Kufanele ifakwe kanjani i-flowmeter kagesi?

Ukufakwa kwe-i-flowmeter kagesiidinga ukulandela ngokuqinile imininingwane ukuqinisekisa ukunemba kokulinganisa kanye nokuqina kwesikhathi eside. Nazi izinyathelo ezibalulekile zokufaka kanye nezinyathelo zokuphepha:

1. Ukukhetha Indawo Yokufaka

• Isimo Sephayiphi Egcwele
  Qinisekisa ukuthi i-flowmeter ihlala isesimweni sombhobho ogcwele. Gwema ukuyifaka endaweni ephezulu kakhulu yombhobho noma ezindaweni lapho igesi ingaqongelela khona. Empayipini ovundlile, inzwa kufanele ifakwe ngaphezu kwe-axis ephakathi yombhobho (ukugwema ukuchitheka kokungcola phansi).
• Izidingo Zesigaba Sephayiphi Eliqondile
• Ingxenye yepayipi eliqondile elikhuphukayo: ≥ ubukhulu bepayipi obuphindwe ka-5 kuya ku-10 (kuye ngesimo sama-valve nezindololwane).
• Ingxenye yepayipi eliqondile elisezansi: ≥ ubukhulu bepayipi buphindwe kathathu kuya kahlanu.
  Isibonelo: Kumpayipi we-DN100, umfula ongaphezulu kufanele uqinisekise ukuthi ingxenye yompayipi iqondile engu-500 kuya ku-1000mm.
• Ukugwema Imithombo Yokuphazamisa
  Gcina kude nemishini enamandla kagesi njengezimoto ezinkulu kanye nama-transformer, ugcine ibanga okungenani imitha elilodwa.

2. Izidingo Zokuxhumeka Kwepayipi

• Uxhumano lweFlange
  Qinisekisa ukuthi ubuso be-flange buyisicaba bese usebenzisa i-gasket yokuvala (izinto kufanele zihambisane nendawo elinganisiwe).
  Qinisa amabhawodi ngokulinganayo ukuze ugweme ukuvuza okubangelwa amandla angalingani.
• Ukufaniswa Kobubanzi Bephayiphi
  Ububanzi be-flowmeter kufanele buhambisane nobephayiphi. Uma kudingeka ushintsho lobubanzi, sebenzisa iphayiphi elinciphisayo noma elinwebekayo (i-engeli yekhoni ≤ 15°).
• Izidingo Zokusekela
  Inzwa kumele ibekwe eceleni, futhi ukumelana kokuma komhlabathi ku-< 10Ω.
  Uma ipayipi lenziwe ngezinto zokuvikela (njengepulasitiki), kufanele kufakwe indandatho yokumisa phansi phezulu nangezansi komfula.

3. Isiqondiso Sokufakwa Kwenzwa

• Ukufakwa Okuvundlile
  I-axis ye-electrode kumele ibe vundlile ukuze kuvinjelwe ukuqongelela kwamabhamuza ukuthi kungathinti ukulinganisa (njengoba kuboniswe kuMfanekiso 1).
• Ukufakwa Okuqondile
  Uketshezi kufanele lugeleze lusuka phansi luye phezulu ukuqinisekisa ukuthi ipayipi ligcwele futhi kugwenywe ukugcwala kwezinhlayiya (njengoba kuboniswe kuMfanekiso 2).

4. Ukucushwa kwama-Valve angaphambili nangemuva

• I-Valve Ephezulu
  Ibanga elisuka ku-sensor kufanele libe ≥ ngokuphindwe kahlanu ububanzi bombhobho. Kunconywa ukusebenzisa i-valve yesango futhi ugweme ukusebenzisa i-valve ye-butterfly (engabangela ukusatshalaliswa kwejubane lokugeleza elingalingani).
• I-Valve Ephansi
  Uma isetshenziselwa ukulawula ukugeleza, kufanele igcine ibanga elingaphezu kuka-≥ izikhathi ezintathu ububanzi bombhobho kusukela ku-sensor.

5. Izinga Lokuvikela kanye Nemvelo

• Ukukhethwa Kwesilinganiso se-IP
• Kwezindawo zangaphakathi ezomile: IP65 (engangeni uthuli futhi engangenisi amanzi).
• Kwezindawo zangaphandle noma ezinomswakama: IP68 (ivikela uthuli ngokuphelele futhi ingangeni manzi).
• Izinga Lokushisa Nomswakama
• Izinga lokushisa eliphakathi: -25°C kuya ku-60°C (bheka ishidi lokuchaza ithuluzi).
• Umswakama: ≤ 95%RH (akukho ukujiya).

6. Ukuxhumeka Kukagesi

• Ukuvikela Ikhebula
  Ikhebula lesignali kufanele lisebenzise ungqimba oluphindwe kabili futhi livikelwe ngepayipi lensimbi elihlukile. Gwema ukulibeka lihambisana nekhebula lamandla.
• Ukucaciswa Kokumisa Isisekelo
  Igobolondo langaphandle lenzwa, igobolondo langaphandle le-converter, kanye nesendlalelo sokuvikela ikhebula kufanele kusekelwe ngokuqinile. Akuvunyelwe ngokuphelele ukwabelana ngentambo yomhlabathi neminye imishini.

7. Ukulungisa amaphutha nokwamukela

1. Ukulinganiswa Kwesikhundla Esingenalutho
   Uma ipayipi ligcwele uketshezi kodwa kungekho ukugeleza, yenza ukulungisa okungekho (vala amavalvu angenhla nangezansi).
2. Ukulinganiswa Kwezinga Lokugeleza
   Ekusetshenzisweni kokuqala noma ngemva kokulungiswa, kunconywa ukwenza ukulinganiswa kokugeleza kwangempela kusetshenziswa indlela yevolumu noma indlela yemitha ejwayelekile.
3. Ukuxazulula Amaphutha

• Hlola amandla esignali (kufanele abe > 80% ngaphansi kwezimo ezijwayelekile).
• Hlola ukumelana kokushisa kwe-electrode (kufanele kube > 20MΩ).
• Hlola ukuthi iluphu yokumisa iphansi iyahambisa yini.

Ama-Taboo Okufaka

1. Gwema Ukucindezeleka Okubi
   Ipayipi elingezansi akufanele libe phezulu kunendawo yokukhipha amanzi ye-flowmeter ukuvimbela ukuthi ulwelwesi lungalinyazwa yingcindezi engemihle ebangelwa yi-siphon.
2. Imidiya Engavunyelwe Yokuphonsa
   Uma ukuhlushwa kwe-chloride ion endaweni elinganisiwe kungu-> 400ppm, kufanele kukhethwe i-Hastelloy electrode noma i-tantalum electrode.
3. Ukunaka Ezindaweni Ezingavuthi Ukuqhuma
   Uma ifakwe endaweni engaqhumi, ithuluzi eliphephile ngokwalo elihambisana nesitifiketi se-ATEX noma se-IECEx kufanele likhethwe.