Xa ufaka ii-flowmeters ze-ultrasonic, zeziphi izinto ezingenakuzihoywa?

I-Flowmeter ye-Ultrasonic luhlobo lwesixhobo sokulinganisa ukuhamba, ukusetyenziswa kwe-ultrasonic pulse ekuhambeni ngeendlela ezimbini zomahluko wesantya, ukufumana ukuhamba kwamanzi, luhlobo olutsha lwemitha yokuhamba kwe-ultrasonic ephuhliswe ngempumelelo ekufunjweni kwezinto ezininzi ezintle. Iiflowmeters ze-ultrasonic ekhaya nakwamanye amazwe.

I-flowmeter ye-ultrasonic isekelwe kulwazi lokuhamba kwesantya xa i-wave ye-ultrasonic isasaza kwi-fluid fluid, njengesantya sokusasazwa kokuhamba phambili kunye nokujikeleza okujikelezayo ngenxa ye-superposition ye-fluid velocity.Ngoko ke, izinga lokuhamba kwamanzi linokubonwa ngumaza ofunyenweyo we-ultrasonic, oguqulwa abe ngumlinganiselo wokuhamba.I-Flowmeter ye-Ultrasonic yenziwe nge-ultrasonic transducer, i-electronic circuit kunye ne-flow display kunye nenkqubo yokuqokelela.

I-ultrasonic flowmeter yokukhetha indawo yokufakela kufuneka iqwalasele ezi zinto zilandelayo: umbhobho ogcweleyo, ukuhamba ngokuzinzile, ukulinganisa, ukushisa, uxinzelelo, ukuphazamiseka kunye nokunye.

I-1, umbhobho ogcweleyo: Khetha icandelo lombhobho elizaliswe ngumgangatho ofanayo we-fluid, lula kwi-ultrasonic transmission, njengecandelo lombhobho omileyo (ukuhamba kwamanzi phezulu) okanye icandelo lombhobho othe tye.

2, ukuhamba okuzingileyo: umgama wofakelo kufuneka ukhethwe phezulu kumjelo ongaphezulu kwamaxesha ali-10 ubukhulu bombhobho othe tye, ezantsi umlambo omkhulu kunamaxesha ama-5 edayamitha ethe tye yombhobho ngaphandle kwengqiniba, ukucutha ubukhulu kunye nezinye icandelo lombhobho othe tye, indawo yofakelo kufuneka ibe kude. ukusuka kwivalve, impompo, amandla ombane aphezulu kunye nesiguquli samaza kunye neminye imithombo yokuphazamiseka.

3, kunqanda ukufakwa kwe-clamp yangaphandle-uhlobo lwe-flowmeter ye-ultrasonic kwinkqubo yepayipi kwindawo ephezulu okanye umbhobho othe nkqo okhululekileyo (ukuhamba kolwelo phantsi)

I-4, kwimibhobho evulekileyo okanye engaphelelanga, imitha yokuhamba kufuneka ifakwe kwicandelo lombhobho we-U.

I-5, iqondo lokushisa kunye noxinzelelo lwendawo yokufakela kufuneka ibe phakathi koluhlu olunokusebenza inzwa.

I-6, qwalasela ngokupheleleyo imeko yokulinganisa yodonga lwangaphakathi lombhobho: nangona ukhetho lokufakela umbhobho ongeyena umlinganiselo, ukuba awukwazi ukuhlangabezana, ukunyuswa kunokuthathwa njengomgca wokulinganisa ukwenzela ukuba kube ngcono ukuchaneka kokulinganisa.

I-7, i-sensors ezimbini ze-clamp yangaphandle ye-flowmeter ye-ultrasonic kufuneka ifakwe kwicala elithe tye kwi-axial surface yombhobho, kwaye ifakwe kwindawo ethe tye ye-axial surface ngaphakathi koluhlu lwe-± 45 ° ukukhusela umcimbi wemibhobho enganelisekanga, amaqamza. okanye imvula kwindawo ephezulu yenzwa ukuchaphazela umlinganiselo oqhelekileyo.Ukuba ayinakufakwa ngokuthe tye kunye ne-symmetrically ngenxa yokunciphisa indawo yokufakela indawo, i-flowmeter ye-ultrasonic ingafaka i-sensor vertically okanye kwi-Angle phantsi komqathango wokuba inxalenye ephezulu yombhobho ayinamaqamza.