Xa usebenzisa i-precessing vortex flow meter ukulinganisa ngokuchanekileyo ukuhamba okupheleleyo, le miba ilandelayo kufuneka ithathelwe ingqalelo:
1. Ukumelana nokuhamba kombhobho kufuneka kube yi-2×104～7×106. Ukuba idlula olu luhlu, isalathisi se-flowmeter, oko kukuthi, inombolo yeStroha ayikho ipharamitha, kwaye ukuchaneka kunciphisa.
2. Isantya sokuhamba kwe-medium kufuneka sibe phakathi koluhlu olufunekayo, kuba i-precession vortex flow meter ilinganisa ukuhamba okupheleleyo ngokusekelwe kwi-frequency. Ngoko ke, isantya sokuhamba kwe-medium kufuneka sincitshiswe, kwaye i-mediums ezahlukeneyo zinemilinganiselo yokuqukuqela eyahlukileyo.
(1) Xa i-medium ingumphunga, isantya esiphezulu kufuneka sibe ngaphantsi kwama-60 m/s
(2) Xa isiphakathi singumphunga, kufuneka sibe ngaphantsi kwama-70 m/s
(3) Umyinge wokuhamba komda ophantsi ubalwa ukusuka kwidayagramu yegophe elinxulumeneyo okanye ukubalwa kwefomula yesixhobo solawulo esisekelwe kwi-viscosity kunye noxinaniso olunxulumeneyo.
(4) Ukongeza, uxinzelelo lokusebenza kunye neqondo lokushisa eliphakathi kufuneka libe phakathi koluhlu olufunekayo.
Iimpawu ze-precession vortex flow meter.
1. Iingenelo eziphambili
(1) Isalathiso sokulinganisa isilinganisi-manzi asiyi kwenzakaliswa luxinzelelo olusebenzayo lolwelo, ubushushu, ukuxinana okuzalanayo, i-viscosity kunye nokutshintsha kokwakheka, kwaye akukho mfuneko yokulinganisa kwakhona xa uqhaqha kwaye utshintshe amacandelo okuhlola;
(2) Umlinganiselo woluhlu lokulinganisa mkhulu, ulwelo lufikelela kwi-1:15, kwaye umphunga ufikelela kwi-1:30;
(3) Iinkcukacha zombhobho phantse azinamda, 25-2700 Mm;
(4) Umonakalo woxinzelelo lomsebenzi uncinci kakhulu;
(5) Ukukhupha ngokukhawuleza umqondiso we-elektroniki ngokuhambelana nokuhamba okupheleleyo, ngokuchaneka okuphezulu, ukufikelela ± 1%;
(6) Ufakelo lulula, isixa sokugcinwa sincinci, kwaye iimpazamo eziqhelekileyo zimbalwa kakhulu.
2. Iziphene eziphambili
(1) Izinga lokuqukuqela okuguquguqukayo kunye nokuqukuqela kwesiselo esiphuphumayo kuya kubeka emngciphekweni ukuchaneka komlinganiselo. Kukho imimiselo yecandelo lokudibanisa kwindawo ephezulu, ephakathi kunye nesezantsi yepaneli yesixhobo (ezintathu d phezulu kunye nezantsi, i-1D phakathi kunye nezantsi). Ukuba kuyimfuneko, umlungisi kufuneka aguqulwe kumacala angasentla nasezantsi;
(2) Xa iinqununu zokuhlola zingcolile, ukuchaneka kokulinganisa kuya kuphazamiseka. Amacandelo okuhamba okupheleleyo kunye nemingxuma yokuhlola kufuneka icocwe ngepetroli yesithuthi, i-petroli, i-ethanol, njl.
3. Ukufakwa kwe-precession vortex flowmeter
1. Xa i-flowmeter ifakwe, inqatshelwe ukwenza i-arc welding ngokukhawuleza kwi-flange yokungenisa kunye nokuthengisa ngaphandle kokuthengisa ukukhusela ukutshisa iindawo zangaphakathi ze-flowmeter.
2. Zama ukucoca umbhobho osandula ukufakwa okanye ukulungiswa, kwaye ufake i-flowmeter emva kokususa ukungcola kumbhobho.
3. I-flowmeter kufuneka ifakwe kwindawo ekulungele ukugcinwa, ngaphandle kwempembelelo yamandla ombane anamandla, kwaye ngaphandle kokungcangcazela okucacileyo kunye neengozi ezitshisayo ezivuthayo;
4. I-flowmeter ayifanelekanga kwiindawo apho ukuhamba okupheleleyo kudla ngokuphazamiseka kwaye kukho ukugeleza okucacileyo kwe-pulsating utywala okanye i-work pressure pulsating drinks;
5. Xa i-flowmeter ifakwe ngaphandle, kufuneka kubekho isigqubuthelo kwindawo ephezulu yokuthintela ukungena kwemvula kunye nokukhanya kwelanga ekulimazeni ubomi be-flowmeter;
6. I-flowmeter inokufakwa kuyo nayiphi na i-angle yokujonga, kwaye ukungena kwamanzi kufuneka kuhambelane ne-inflow ephawulwe kwi-flowmeter;
7. Kwindawo yokwakhiwa kwemibhobho, kufuneka kuqwalaselwe ukufakwa kweemveliso okanye iintsimbi zentsimbi ukuthintela ukutsalwa okunzulu okanye ukugqabhuka kwe-flowmeter;
8. I-flowmeter kufuneka ifakwe i-coaxially kunye nesiphumo sombhobho, kwaye ithintele isiqwenga sokutywinwa kunye nebhotela engaxutywanga ekungeneni kudonga lwangaphakathi lombhobho;
9. Xa usebenzisa umbane wokutshintsha kwangaphandle, i-flowmeter kufuneka ibe nesixhobo esithembekileyo sokumisa. Ucingo lokumisa alunakusetyenziswa kunye nesoftware ebuthathaka yangoku. Ngethuba lokufakela okanye ukulungiswa kombhobho, ucingo olusezantsi lwe-software ye-arc welding system ayikwazi ukugqithwa nge-flowmeter steel bar. .
