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 yesici sokuqalisa ngokukhawuleza idiskhi imile kwaye isetyenziselwa ngokuyinhloko kwisenzo sokuvula / sokuvala.
Iimpawu zolawulo lokuhamba kwevalve yokulawula i-spool surface shape ivalve imiselwa ziimpawu zokuqukuqela kwevalve kunye nendibaniselwano yemibhobho yenkqubo, iimpompo, njl. njl., kwaye zikhethwe kwitheyibhile engezantsi ngokomlinganiselo welahleko yoxinzelelo lwevalve kwindawo nganye. into yokulawula kunye nenkqubo .
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 kwe-40% Linear
ulawulo loxinzelelo okanye ulawulo lobushushu Ngaphantsi kwe-50% Ipesenti elinganayo
ulawulo loxinzelelo okanye ulawulo lobushushu Ngaphezu kwe-50% Linear
Ekubeni ilahleko yoxinzelelo lwemibhobho inyuka ngokulinganayo kwisikwere sesantya sokuhamba, ukuba iimpawu zomzimba wevalve zibonisa utshintsho olulula lomgca, ukunyanzeliswa koxinzelelo lwevalve kuyanda xa isantya sokuhamba sincinci, kwaye izinga lokuhamba liya kuba. enkulu xa ivalve ivulwe kancinane.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.
Umzekelo, xa ulawula ubungakanani be-asidi ngevalvu kwinkqubo yokuxuba amanzi kunye ne-asidi, kukhuselekile kwaye kunengqiqo ukuvala ivalve yokulawula i-asidi xa umgca wesignali yombane unqanyuliwe okanye ukuvuza kwemibhobho yomoya, umthombo womoya kuphazamiseka, okanye umbane ucinyiwe.Reverse action valve.
Ixesha lokuposa: Aug-31-2023