1. Uxinzelelo loFakelo
Ngexesha lofakelo imitha yokuhamba kobunzima, ukuba i-sensor flange ye-flow meter ayihambelani ne-axis esembindini yombhobho (oko kukuthi, i-sensor flange ayihambelani neflange yombhobho) okanye utshintsho lobushushu bombhobho, uxinzelelo. eveliswa ngumbhobho iya kubangela uxinzelelo, itorque kunye namandla okutsala asebenze kwityhubhu yokulinganisa yemitha yokuhamba yobunzima; ebangela i-asymmetry okanye i-deformation ye-probe yokubona, ekhokelela ku-zero drift kunye nempazamo yokulinganisa.
Isisombululo:
(1) Landela ngokungqongqo iinkcukacha xa ufaka i-flow meter.
(2) Emva kokuba i-flow meter ifakiwe, biza "imenyu yokulungelelanisa i-zero" kwaye urekhode ixabiso le-preset ye-zero yasefektri. Emva kokuba ulungelelwaniso lwe-zero lugqityiwe, jonga ixabiso le-zero ngeli xesha. Ukuba umehluko phakathi kwamaxabiso amabini mkhulu (amaxabiso amabini kufuneka abe kwi-Order of magnitude), kuthetha ukuba uxinzelelo lofakelo lukhulu kwaye kufuneka lubuyiselwe.
2. Ukungcangcazela kwendalo kunye nokuphazamiseka koMbane
Xa imitha yokuhamba kobunzima isebenza ngokuqhelekileyo, ityhubhu yokulinganisa ikwimeko yokungcangcazela kwaye ivakalelwa kakhulu kwi-vibration yangaphandle. Ukuba kukho eminye imithombo yokungcangcazela kwiqonga elifanayo elixhasayo okanye iindawo ezikufutshane, ukushukuma rhoqo komthombo wokungcangcazela kuya kuchaphazela enye nenye kunye nesantya sokungcangcazela sokusebenza kwetyhubhu yokulinganisa yomthamo wemitha, ebangela ukungcangcazela okungaqhelekanga kunye ne-zero drift ye-flow meter, kubangela iimpazamo zokulinganisa. Iya kubangela ukuba i-flow meter ingasebenzi; ngelo xesha, ngenxa yokuba inzwa ingcangcazela ityhubhu yokulinganisa ngokusebenzisa ikhoyili yokuvuselela, ukuba kukho ukuphazamiseka okukhulu kwamagnetic kufuphi nemitha yokuhamba, kuya kuba nefuthe elikhulu kwiziphumo zokulinganisa.
Isisombululo: Ngokuphuculwa okuqhubekayo kweteknoloji yokuvelisa i-mass flow meter kunye neteknoloji, umzekelo, ukusetyenziswa kwe-DSP ye-digital signal processing technology kunye ne-MVD iteknoloji ye-Micro Motion, xa kuthelekiswa nezixhobo zangaphambili ze-analog, isiphelo sangaphambili Ukuqhutyelwa kwedijithali kunciphisa kakhulu ingxolo yesignali. kunye nokwandisa umqondiso womlinganiselo. Imitha yokuhamba kunye nemisebenzi engentla kufuneka ithathelwe ingqalelo njengento elinganiselweyo xa ukhetha isixhobo. Nangona kunjalo, oku akuphelisi ukuphazamiseka. Ke ngoko, imitha yokuhamba ngobuninzi kufuneka iyilwe kwaye ifakwe kude ne-transformers enkulu, iimotor kunye nezinye izixhobo ezenza imimandla emikhulu yamagnetic ukuthintela ukuphazamiseka kwimihlaba yazo yokuvuselela.
Xa ukuphazamiseka kwe-vibration akukwazi ukuphetshwa, imilinganiselo yokuzimela yodwa efana noxhumo lombhobho oguquguqukayo kunye ne-vibration tube kunye nesakhelo sokuxhasa i-vibration solation siyamkelwa ukuhlukanisa imitha yokuhamba ukusuka kumthombo wokuphazamiseka kwe-vibration.
3. Impembelelo yoMlinganiso woxinzelelo oluphakathi
Xa uxinzelelo lokusebenza luhluke kakhulu kuxinzelelo lokuqinisekisa, ukutshintshwa koxinzelelo oluphakathi kokulinganisa kuya kuchaphazela ukunyanzeliswa kwetyhubhu yokulinganisa kunye neqondo le-buden effect, ukutshabalalisa i-symmetry ye-tube yokulinganisa, kwaye kubangele ukuhamba kwenzwa kunye nokuqonda kokulinganisa ubuninzi. ukutshintsha, nto leyo ayinakungahoywa kumlinganiselo wokuchaneka.
Isisombululo: Sinokuphelisa okanye sinciphise esi siphumo ngokwenza imbuyekezo yoxinzelelo kunye noxinzelelo lwe-zero uhlengahlengiso kwimitha yokuhamba kobunzima. Kukho iindlela ezimbini zokumisela imbuyekezo yoxinzelelo:
(1) Ukuba uxinzelelo lokusebenza lixabiso eliqingqiweyo elaziwayo, unokufaka ixabiso loxinzelelo lwangaphandle kwi-mass flow meter transmitter ukuze uhlawule.
(2) Ukuba uxinzelelo olusebenzayo lutshintsha kakhulu, i-mass flow meter meter transmitter inokuqulunqwa ukuba i-poll isixhobo sokulinganisa uxinzelelo lwangaphandle, kunye nexabiso lexesha langempela loxinzelelo oluguquguqukayo lunokufumaneka ngesixhobo sokulinganisa uxinzelelo lwangaphandle kwimbuyekezo. Qaphela: Xa uqwalasela imbuyekezo yoxinzelelo, uxinzelelo lokuqinisekisa ukuhamba kufuneka lubonelelwe.
4. Ingxaki yokuHamba yamanqanaba amabini
Ngenxa yokuba iteknoloji yokuvelisa imitha yombane yangoku inokulinganisa ngokuchanekileyo ukuhamba kwesigaba esisodwa, kwinkqubo yokulinganisa yokwenene, xa iimeko zokusebenza zitshintsha, i-medium medium iya kuba ngumphunga kwaye yenze ukuhamba kwezigaba ezimbini, ezichaphazela ukulinganisa okuqhelekileyo.
Isisombululo: Ukuphucula iimeko zokusebenza kwi-fluid medium, ukwenzela ukuba amaqamza kwi-fluid yenkqubo asasazwe ngokulinganayo kangangoko kunokwenzeka ukuhlangabezana neemfuno zemitha yokuhamba yokulinganisa okuqhelekileyo. Izisombululo ezithile zezi zilandelayo:
(1) Ukubekwa kombhobho ngokuthe tye. I-vortex ebangelwa yi-elbow kumbhobho iya kubangela ukuba amaqamza omoya angene kwi-tube ye-sensor engalinganiyo, ebangela iimpazamo zokulinganisa.
(2) Ukunyusa izinga lokuhamba. Injongo yokunyusa izinga lokuhamba kukwenza amaqamza kwisigaba sesibini sokuhamba adlule kwityhubhu yokulinganisa ngesantya esifana naso xa bengena kwityhubhu yokulinganisa, ukwenzela ukuphelisa ukunyanzeliswa kweebhubhu kunye nefuthe le-low- i-viscosity fluids (amaqamza kwi-low-viscosity fluids ayilulanga ukuba asasazeke kwaye athande ukuhlanganisana kwiindimbane ezinkulu); Xa usebenzisa i-Micro Motion flow meters, kucetyiswa ukuba izinga lokuhamba lingekho ngaphantsi kwe-1/5 yesikali esipheleleyo.
(3) Khetha ukufaka kumbhobho othe nkqo, kunye necala lokuhamba ukuya phezulu. Kwizinga eliphantsi lokuhamba, iibhubhu ziya kubuthana kwisiqingatha esiphezulu sombhobho wokulinganisa; i-buoyancy ye-buoyancy kunye ne-medium flowing inokukhupha ngokulula amaqamza ngokulinganayo emva kokuba umbhobho othe nkqo ubekwe.
(4) Sebenzisa isilungisi ukunceda ukusasaza amaqamza kulwelo, kwaye umphumo uba ngcono xa usetyenziswa negeta.
5. Impembelelo yoMlinganiso woXinano oluPhakathi kunye neViscosity
Ukutshintsha kobuninzi bomlinganiselo olinganisiweyo kuya kuchaphazela ngokuthe ngqo inkqubo yokulinganisa ukuhamba, ukwenzela ukuba ibhalansi ye-flow sensor iya kutshintsha, ibangele i-zero offset; kunye ne-viscosity ye-medium iya kutshintsha iimpawu zokudambisa inkqubo, ekhokelela kwi-zero offset.
Isisombululo: Zama ukusebenzisa into enye okanye ezininzi ezinomahluko omncinci kuxinaniso.
6. Umlinganiselo weTube Corrosion
Ekusetyenzisweni kwemitha yokuhamba kwamanzi, ngenxa yemiphumo ye-corrosion yamanzi, uxinzelelo lwangaphandle, ukungena kwezinto zangaphandle njl., ngokuthe ngqo kubangela umonakalo othile kwi-tube yokulinganisa, echaphazela ukusebenza kombhobho wokulinganisa kwaye iholele ekulinganisweni okungachanekanga.
Isisombululo: Kucetyiswa ukuba kufakwe isihluzo esihambelanayo ngaphambili kwimitha yokuhamba ukuthintela ukungena kwezinto zangaphandle; ukunciphisa uxinzelelo lofakelo ngexesha lofakelo.
