Ithetha ukuthini ixabiso le-CV? Ungayikhetha njani ivalvu yokulawula ngexabiso le-Cv?

Inivalvuubunjineli, ixabiso le-Cv (i-Flow Coefficient) lolawuloivalvuibhekisa kwisantya sokuhamba komthamo okanye isantya sokuhamba kobunzima bepayipi ephakathi ngevalvu ngexesha leyunithi nganye naphantsi kweemeko zovavanyo xa ipayipi igcinwe kuxinzelelo olungaguqukiyo. Oko kukuthi, amandla okuhamba kwevalvu.

Okukhona ixabiso le-flow coefficient liphezulu, kokukhona ilahleko yoxinzelelo iphantsi njengoko ulwelo luhamba nge-ivalvu.

Ixabiso le-Cv levalvu kufuneka limiselwe ngovavanyo kunye nokubala.

I-CVixabisoyiparameter ebalulekileyo yobugcisa elinganisa umthamo wokuhamba kwevalvu yokulawula phantsi kweemeko ezithile. Ixabiso leCV alibonisi kuphela ukusebenza kwevalvu ngokwayo, kodwa likwanxulumene ngokuthe ngqo noyilo kunye nokusebenza kakuhle kwenkqubo yolawulo lolwelo.

Inkcazo idla ngokusekelwe kwezi meko zilandelayo:ivalvuivuliwe ngokupheleleyo, umahluko woxinzelelo yi-1 lb/in² (okanye i-7KPa) eziphelweni, kwaye ulwelo yi-60°F (15.6°C) yamanzi acocekileyo, apho umthamo wolwelo (kwiigaloni zase-US) odlula kwivalvu ngomzuzu lixabiso le-Cv yevalvu. Kufuneka kuqatshelwe ukuba i-flow coefficient eTshayina idla ngokuchazwa kwinkqubo ye-metric, enophawu lwe-Kv, kwaye ubudlelwane nexabiso le-Cv yi-Cv=1.156Kv.

Indlela yokufumanisa ubungakanani bevalvu ngexabiso le-Cv

1. Bala ixabiso le-CV olifunayo:

Ngokweemfuno ezithile zenkqubo yolawulo lolwelo, ezinje ngokuhamba kwamanzi, uxinzelelo oluhlukeneyo, i-medium kunye nezinye iimeko, ixabiso le-Cv elifunekayo libalwa kusetyenziswa ifomula okanye isoftware ehambelanayo. Eli nyathelo liqwalasela izinto ezifana neempawu zomzimba zolwelo (umz., i-viscosity, uxinano), iimeko zokusebenza (umz., ubushushu, uxinzelelo), kunye nendawo yevalvu.

2. Khetha ububanzi bevalvu obuchanekileyo:

Ngokwexabiso le-Cv elifunekayo elibaliweyo kunye nexabiso le-Cv elilinganisiweyo levalvu, kukhethwa ububanzi bevalvu efanelekileyo. Ixabiso le-Cv elilinganisiweyo levalvu ekhethiweyo kufuneka lilingane okanye libe likhulu kancinci kunexabiso le-Cv elifunekayo ukuqinisekisa ukuba ivalvu inokuhlangabezana neemfuno zokuhamba kwamanzi. Kwangaxeshanye, kuyimfuneko ukuqwalasela ezinye izinto ezifana nezinto, ulwakhiwo, ukusebenza kokutywina, kunye nendlela yokusebenza kwevalvu ukuqinisekisa ukuba ukusebenza kwevalvu iyonke kuyahlangabezana neemfuno zenkqubo.

3. Ukuqinisekiswa kunye noLungiso:

Emva kokukhethwa kokuqala kweivalvui-caliber, kufuneka kwenziwe uqinisekiso kunye nohlengahlengiso olufunekayo. Oku kuquka ukuqinisekisa ukuba ukusebenza kokuhamba kwevalvu kuyahlangabezana neemfuno zenkqubo ngokusebenzisa izibalo zokulinganisa okanye uvavanyo lwangempela. Ukuba kufunyenwe ukuphambuka okukhulu, kunokufuneka ukuba kubalwe kwakhona ixabiso le-Cv okanye kulungiswe ububanzi bevalvu.

Isishwankathelo

Kwinkqubo yokubonelela ngamanzi yesakhiwo, ukuba ivalvu yokulawula ayifikeleli kwixabiso le-CV elifunekayo, ipompo yamanzi inokuqala kwaye ime rhoqo okanye isebenze xa umthwalo uphezulu ngalo lonke ixesha. Oku akupheleli nje ekuchitheni amandla ombane, kodwa ngenxa yokutshintshatshintsha koxinzelelo rhoqo, kunokukhokelela ekuqhagamshelweni kwemibhobho okukhululekileyo, ukuvuza, kwaye kunokubangela nomonakalo kwipompo ngenxa yokugqithisa ixesha elide.

Ngamafutshane, ixabiso le-Cv levalvu yokulawula luphawu olubalulekileyo lokulinganisa umthamo wayo wokuhamba. Ngokubala ngokuchanekileyo ixabiso le-Cv kunye nokumisela i-valve caliber efanelekileyo ngokusekelwe kuyo, uzinzo kunye nokusebenza kakuhle kwenkqubo yokulawula ulwelo kunokuqinisekiswa. Ke ngoko, kwinkqubo yokukhetha ivalvu, uyilo lwenkqubo kunye nokwenza ngcono ukusebenza, kufuneka kunikwe ingqalelo epheleleyo ekubalweni nasekusetyenzisweni kwexabiso le-Cv.

Tianjin Tanggu Water-Seal Valve Co.,ltdikakhulu ukuvelisa ukuhlala okuzinzileyoivalvu yebhabhathane, ivalvu yesango, Isihluzo se-Y, ivalvu yokulinganisela, ivalvu yokujonga, ivalvu yokulinganisela, isithinteli sokuhamba komoya emva njl.