Enyanisweni, ivalvu yokulawula umbane isetyenziswa kakhulu kushishino nakwimigodi. Ivalvu yebhola yokulawula umbane idla ngokwenziwa yi-angular stroke electric actuator kunye ne-butterfly valve ngokudibanisa ngoomatshini, emva kokufakwa kunye nokulungisa iimpazamo. Ivalvu yebhola yokulawula umbane ngokwendlela yokwenza: uhlobo lokutshintsha kunye nohlobo lommiselo. Oku kulandelayo yinkcazo engaphezulu yevalvu yebhola yokulawula umbane.
Kukho amanqaku amabini aphambili ekufakweni kwevalvu yokulawula ibhola yombane
1) Indawo yokufaka, ukuphakama kunye necala lokungena kunye nelokuphuma kufuneka kuhlangatyezwane neemfuno zoyilo. Icala lokungena okuphakathi kufuneka lihambelane necala lotolo oluphawulwe emzimbeni wevalvu, kwaye uqhagamshelo kufuneka luqine kwaye luqine.
2) Ngaphambi kokufakelwa kwevalvu yokulawula umbane, kufuneka kuhlolwe inkangeleko, kwaye ipleyiti yegama levalvu kufuneka ihambelane nomgangatho wangoku wesizwe "uphawu lwevalvu olusetyenziswa ngesandla" GB 12220. Kwivalvu enoxinzelelo olusebenzayo olungaphezulu kwe-1.0 MPa kunye nomsebenzi wokunqunyulwa kumbhobho oyintloko, uvavanyo lwamandla kunye nokuqina kufuneka lwenziwe ngaphambi kokufakwa, kwaye ivalvu ingasetyenziswa kuphela emva kokuba ifanelekile. Ngexesha lovavanyo lwamandla, uxinzelelo lovavanyo kufuneka lube ngamaxesha ali-1.5 loxinzelelo oluqhelekileyo, ubude abuyi kuba ngaphantsi kwemizuzu emi-5, kwaye igobolondo levalvu kunye nokupakisha kuya kufuneka kuqinisekiswe ukuba akukho kuvuza.
Ngokwesakhiwo, ivalvu yebhola yokulawula yombane inokwahlulwahlulwa ibe yipleyiti ye-offset, ipleyiti ethe nkqo, ipleyiti etyebileyo kunye nohlobo lwe-lever. Ngokwemo yokutywina, inokwahlulwahlulwa ibe ziintlobo ezimbini: uhlobo olutywiniweyo olulinganiselweyo kunye nohlobo olutywiniweyo oluqinileyo. Uhlobo lokutywina oluthambileyo ludla ngokutywinwa ngeringi yerabha, ngelixa uhlobo lokutywina oluqinileyo ludla ngokutywinwa ngeringi yesinyithi.
Ngokwendlela yoqhagamshelo, ivalvu yebhola yokulawula umbane inokwahlulwahlulwa ibe luqhagamshelo lweflange kunye noqhagamshelo lwesibini lweclamp; ngokwendlela yothumelo, inokwahlulwa ibe yi-manual, i-gear transmission, i-pneumatic, i-hydraulic kunye ne-electric.
Ukufakwa kunye nokugcinwa kwevalvu yokulawula ibhola yombane
1. Ngexesha lokufakwa, idiski mayime kwindawo evaliweyo.
2. Indawo yokuvula kufuneka imiselwe ngokwe-engile yokujikeleza kwebhola.
3. Kwivalvu yebhola enevalvu ye-bypass, ivalvu ye-bypass kufuneka ivulwe ngaphambi kokuba ivulwe.
4. Ivalvu yebhola yokulawula yombane mayifakwe ngokwemiyalelo yokufakela yomenzi, kwaye ivalvu yebhola enzima mayinikwe isiseko esiqinileyo.
Ixesha lokuthumela: Feb-16-2023
