Iimpawu zokuhamba kwevalve yokulawula ikakhulu ziquka iimpawu ezine zokuhamba: umgca ochanekileyo, ipesenti elinganayo, ukuvulwa ngokukhawuleza kunye neparabola.
Xa ifakwe kwinkqubo yokulawula yangempela, ukunyanzeliswa kokwahlukana kwevalve kuya kutshintsha ngokutshintsha kwesantya sokuhamba. Oko kukuthi, xa isantya sokuhamba sincinci, ukulahlekelwa kwengcinezelo yecala lemibhobho lincinci, kwaye ukunyanzeliswa kokwahlukana kwe-valve kuya kwanda, kwaye uxinzelelo oluhlukeneyo lwe-valve luya kuncipha xa izinga lokuhamba likhulu. Olu phawu lwevalvu, olwahlukileyo kuphawu lwendalo, lubizwa ngokuba luphawu lokuhamba olusebenzayo.
Ivalve yangaphakathi yophawu lokuqala olukhawulezayo idiskhi ibunjiwe kwaye isetyenziswa ngokuyintloko kwisenzo sokuvula / sokuvala.
Iimpawu zokulawula ukuhamba kwe-valve yokulawula i-valve ye-spool surface shape i-valve inqunywe yimpawu zokuhamba kwevalve kunye nokudityaniswa kwemibhobho yenkqubo, iimpompo, njl.
Into yokulawula Umlinganiselo welahleko yoxinzelelo lwevalvu kwinkqubo Iimpawu zokuhamba kwevalve
Ulawulo lokuqukuqela okanye ulawulo lwenqanaba lolwelo Ngaphantsi kwama-40% epesenti elinganayo
ulawulo lokuhamba okanye ulawulo lwenqanaba lolwelo Ngaphezu kwama-40% Linear
ulawulo loxinzelelo okanye ulawulo lobushushu Ngaphantsi kwe-50% Ipesenti elinganayo
ulawulo loxinzelelo okanye ulawulo lobushushu Ngaphezu kwe-50% Linear
Ekubeni ilahleko yoxinzelelo lombhobho inyuka ngokulinganayo kwisikwere sesantya sokuhamba, ukuba iimpawu zomzimba wevalve zibonisa utshintsho olulula lomgca, ukunyanzeliswa koxinzelelo lwe-valve kwandisa xa isantya sokuhamba sincinci, kwaye izinga lokuhamba liba likhulu xa i-valve ivuliwe kancane. Xa izinga lokuhamba likhulu, ukunyanzeliswa koxinzelelo lwevalve kuncipha. Isantya sokuhamba asikwazi ukulingana ngokuthe ngqo nokuvulwa kwevalve. Ngenxa yesi sizathu, injongo yokuyila umlinganiso wepesenti elinganayo kukongeza iimpawu zombhobho kunye nompompo ukuqonda ulawulo lokuhamba oluzimeleyo kwizinga lokuhamba kunye nokutshintsha kuphela ngokulingana nokuvulwa kwevalve.
Ukusebenza kwe
inkqubo yemibhobho kunye nevalve yokulawula ukulahleka koxinzelelo
inokukhethwa ngokuhambelana neyunithi yokuqhuba kunye nomzimba wevalve.
Ukudityaniswa kweyunithi yokuqhuba kunye nomzimba wevalvu kunye nesenzo sevalvu (umzekelo wevalve yesitulo esinye)
Intshukumo yevalvu ibandakanya iindidi ezintathu: isenzo esithe ngqo, isenzo esibuyisela umva, kunye nesenzo sohlobo lokubamba. Imowudi yesenzo esithe ngqo se-pneumatic drive efana nohlobo lwe-diaphragm kunye nohlobo lwe-cylinder yindlela yokuvala i-valve ngokunyusa umqondiso woxinzelelo lomoya, owaziwa nangokuthi "I-AIR TO CLOSE". Indlela yokwenza umva kukuvula ivalve ngokunyusa isignali yoxinzelelo lomoya, ekwabizwa ngokuba yi "AIR TO OPEN" okanye "AIRLESS TO CLOSE". Iimpawu ezisebenza ngombane zinokuguqulelwa kwiimpawu ze-pneumatic yi-positioner. Xa isignali yokusebenza iphazamisekile okanye umthombo womoya uphazamisekile okanye umbane ucinyiwe, nceda uqwalasele ukhuseleko kunye nengqiqo yenkqubo kwaye ukhethe ukuvala okanye ukuvula i-valve.
Ngokomzekelo, xa ulawula ubungakanani be-asidi ngevalve kwinkqubo yokuxuba amanzi kunye ne-asidi, kukhuselekile kwaye kunengqiqo ukuvala i-valve yokulawula i-asidi xa umgca wesignali yombane unqanyuliwe okanye ukuvuza kwemibhobho yombhobho womoya, umthombo womoya uphazamisekile, okanye amandla aphelile. Reverse action valve.
Ixesha lokuposa: Aug-31-2023