Xa ivalve ihamba ngebhayisekile, umgangatho wolawulo unokubonwa ngokulinganisa kunye nokucwangcisa ukuhamba ngokushiya ivalve kunye nokusebenzisa igalelo levalve, njengangoku (kwivalve elawulwa yicoil) okanye ubude benyathelo (kwivalvu elawulwa yi-stepper motor. ). Eli nqaku liza kuxubusha iimpawu ze-valve ye-curvejin yokusebenza ngokukodwa, apho iqala khona ukuhamba, kunye nendlela i-curve ebonisa ngayo iimpawu ezithile zevalve kunye nemiphumo yazo.
Xa ukhetha i-valve, kufuneka ujonge iiparitha ezininzi, kodwa xa izixhobo ezithintekayo zibandakanyeka kunye nokuchaneka kubalulekile kwisicelo, njengokuhlalutya ulwelo, iimpawu zokuphakamisa ukuhamba kufuneka ziqwalaselwe, kuba ukuhamba kokuqala kunokuchaphazela ngokumangalisayo. ubomi kunye nobomi benkqubo yonke. baleka. Umzekelo, ukuba ivalve ivumela ukutyhutyha ngesiquphe ukuhamba, inokubangela ukothuka kwehydraulic (ekwaziwa njengehamile yamanzi okanye ihamile yamanzi). Oku kunokubonwa kuMfanekiso 1, apho indawo ejikelezileyo ibonisa incopho yokuqukuqela ebukhali eyenzeka xa ivalve iphakanyiswa okanye ivuliwe.
Ukunyuswa ngesiquphe kubangelwe yindlela umphezulu wokutywina wangaphakathi wendawo yokungena (ngokuqhelekileyo umbhobho) udibana nomphezulu wokutywina wevalve, iqhelekile ivalve yepoppet enerabha encanyathiselwe kumphezulu wayo. Ngelishwa, uhlobo lwerabha (i-fluororubber, i-EPDM, njl.) yenza kube lula ukunamathela, ukuguqula kunye nokunciphisa, kwezinye iimeko kunokubangela ukuba i-poppet ibambelele kwi-nozzle ngaphambi kokuba ikhuphe ngokukhawuleza. Izitenxo zoomatshini zinokubangela okanye zibe negalelo ekunyukeni ngokukhawuleza kokuhamba, kodwa ezi zinxulumene kakhulu noyilo lwevalve, njengemithombo kunye nokungqubana.
Iindidi ezithile zeevalvu zineempawu ezenza ukuba zifaneleke ngakumbi ekunciphiseni ukunyuswa kokuhamba okanye ukunyuka kunye nokubethelwa, njengezivalo zesango, iivalve zebhola, okanye iivalve zenaliti. Ukuze unciphise i-inrush yangoku kwisicelo sakho, i-orifice yokusebenza yevalve kufuneka iguquguquke kwindawo yayo yasimahla. Ivalve yokulawula eqhelekileyo, efana nevalve yepoppet okanye i-spool valve, ine-orifice esisigxina. Ke ngoko, ukunyuswa komphezulu wokutywina kusebenza kuwo wonke umjikelezo we-orifice. Oku kukhokelela kwincopho yokuqala yokuhamba. Ngokomzekelo, i-orifice plate ye-0.006 ene-control lift ye-0.001 iya kumela i-6.5% yokuhamba okupheleleyo, okulingana nokunyuka ngokukhawuleza okanye ukuxhuma.
Umothuko wehydraulic unokubangela ukungcangcazela, ingxolo, kunye nokugqabhuka/ukusilela kwemibhobho okanye itywina. Ngokukodwa kwiinkqubo ezinobuthathaka, ukuqinisekisa ukunyuka okugudileyo kunye nokuhambelana okuhambayo kungundoqo, kungekhona nje kubomi bomatshini okanye ishedyuli yokugcina. Utshintsho olukhawulezileyo lokuhamba, kungakhathaliseki ukuba luhlala ixesha elifutshane kangakanani, lunokuba yingozi kwaye lubiza kakhulu ekulawuleni izicelo ezibalulekileyo (ezifana namayeza okanye ukulawula umoya wokungena komoya), kwaye oku kuyinyani xa usebenzisa izixhobo zokulinganisa imiba eyahlukeneyo yenkqubo, njengencinci. iicuffs zoxinzelelo lwegazi. Incopho yequbuliso yokuqukuqela ingaba phezulu kakhulu kwaye ikhawuleze kakhulu ukuba imitha ilinganise kwaye idlulise ngexesha, okuya kubangela ufundo olungachanekanga okanye olungaphelelanga.
Incopho yokuqukuqela ebukhali isenokuthetha ukuba imidiya yangaphambi kwexesha okanye egqithisileyo ingena kumbhobho. Kwizicelo ezibalulekileyo (ezifana nokutsalwa kwesampulu), oku kunokumosha ii-reagents ezibizayo / izinyibilikisi kwaye zide zikhokelele kuhlalutyo olungachanekanga. Kwakhona kuyimfuneko ukuqwalasela imeko ye-medium ngokwayo, njengegazi okanye olunye ulwelo olubuthathaka oluthambekele kwi-hemolysis okanye i-homolysis, apho iiseli okanye iikhompawundi kulwelo ziphulwe. Isiphithiphithi siya kwandisa ukukhululeka kwamabhondi ekhemikhali, ngoko ke ukunciphisa iziphazamiso okanye isiphithiphithi ekuhambeni kuya kuthintela umonakalo okanye ukutshatyalaliswa kweesampulu ezibuthathaka. Ngoko ke, iivalve ezisetyenziswe kwizicelo ezichanekileyo kufuneka zibonelele ngeprofayili ehambayo enciphisa i-turbulencejprotecting components, izixhobo zangaphakathi, kunye namacandelo e-fluid kumonakalo. Ngenxa yesi sizathu, kucetyiswa ukuba usebenzise "isiqalo esithambileyo" (jonga umfanekiso 2). Ngokungafaniyo nonyuso oluboniswe ngaphambili, "isiqalo esithambileyo" sibonelela ngentshayelelo ethambileyo ngaphambi kokwenza lula ukuhamba okulinganayo (nganye yangoku okanye inyathelo elinikiweyo).
Ukuqinisekisa ukuba i-curve flow curve ilandela i-valve-to-valve trend, ngokukodwa iimpawu zokuphakamisa, kubalulekile ukuhambelana kwimveliso kunye nokwakha ukuzithemba kwimveliso; emva kwayo yonke loo nto, ulawulo olugqwesileyo olusezantsi oluvumela ukuhamba kwe-microliter lugqwesileyo kuphela xa luphindaphindwa. Nangona kunjalo, umntu kufuneka avume ukuba akukho zivalo zimbini zisebenza ngokufanayo, kuba akukho zivalo zimbini ezinokufana ncam. Ngoko ke, kufuneka kubekho uluhlu apho zonke iivalve ziya kusebenza. Xa ukhetha iivalve, uluhlu kufuneka luqondwe kwaye luqondwe ukwenzela ukuba zonke iivalve kuyo nayiphi na ibhetshi enikiweyo zifane ngokwaneleyo kwaye zinokusebenza njengoko kulindelwe kwisicelo esinikiweyo. Oku ngakumbi kubandakanya ukunyuswa.
Ngoko ke, nanini na xa ukhetha i-valve, kubalulekile ukubeka ingqalelo kwiimpawu zokuphakamisa i-valve kwaye uqwalasele ukuba iya kuxhasa okanye ithintele isicelo.
Isebenzisa eyona mboni inamandla kwaye inamandla encinci ye-linear actuator, inyathelo lokulawula inyathelo le-Eclipse elithambileyo, i-ceramic sliding isolation valve ikwindawo ephambili kushishino ngokwemigaqo yokusebenza kunye nokuqina. Le valve yokuwina ibhaso ifaneleke ngokufanelekileyo kwizicelo ezibalulekileyo ezifana nokuthuthwa kwamanzi kunye negesi, unyango, uhlalutyo, kunye ne-automation yemizi-mveliso efuna isisombululo esiphezulu kunye nokuphindaphinda okugqwesileyo. Ukongeza, uyilo olulodwa luvumela iiprofayili zendlela eqhelekileyo.
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Ixesha lokuposa: Dec-01-2021
