Ukuya kumlinganiselo othile, ivalve yeglowubhu kunye nevalve yesango kunokutshiwo ukuba inonxibelelwano oluninzi.Ngaba kunokutshiwo ukuba ivalve yeglowubhu kunye nevalve yesango zinokuxutywa ngokwenene?I-Shanghai Dongbao Valve Manufacturing Co., Ltd. ilapha ukuze ikuphendulele lo mbuzo.

1. Isakhiwo
Xa indawo yokufakela ilinganiselwe, nceda uqaphele ukhetho:
Iivalve yesangoinokuvalwa ngokuqinileyo kunye nomphezulu wokutywina ngokuxhomekeke kuxinzelelo oluphakathi, ukuze ufezekise umphumo wokungavuzi.Xa uvula kwaye uvala, i-valve core kunye ne-valve seat i-surface yokutywina ihlala idibanisa kwaye ikhuhla omnye komnye, ngoko ke indawo yokutywina kulula ukuyinxiba.Xa ivalve yesango isondele ekuvaleni, umahluko woxinzelelo phakathi komphambili nasemva wombhobho mkhulu, nto leyo eyenza ukuba umphezulu wokutywina unxibe kakhulu.
Ukwakhiwa kwevalve yesango kuya kuba nzima ngakumbi kune-valve yokuvala.Ukusuka kwindawo yokujonga imbonakalo, ivalve yesango inde kunevalve yokuvala kwaye ivalve yokuvala inde kunevalufa yesango kwimeko yecaliber efanayo.Ukongezelela, i-valve yesango inokwahlulwa ibe yintonga eqaqambileyo kunye nentonga emnyama.Ivalve yokuvala ayifuni.
2. Umgaqo wokusebenza
Xa i-valve yokuvala ivuliwe kwaye ivaliwe, i-stem iphakama, oko kukuthi, xa isondo lesandla liguqulwa, isondo lesandla liya kujikeleza kwaye liphakamise kunye nesiqu.Ivalve yesango ijikelezisa ivili lesandla ukwenza isiqu sevalve sinyuke kwaye sihla, kwaye indawo yevili lesandla ihlala ingatshintshi.
Isantya sokuhamba sihluke, i-valve yesango iyadingeka ukuba ivule ngokupheleleyo okanye ivalwe ngokupheleleyo, kodwa i-valve yokumisa ayifuni.Ivalve yokuvala ichaze indlela yokungena kunye neyokuphuma, kwaye ivalve yesango ayinayo imfuneko yendlela yokungena nokuphuma.
Ukongezelela, i-valve yesango inamazwe amabini kuphela: ivule ngokupheleleyo okanye ivalwe ngokupheleleyo, isango lokuvula kunye ne-stroke yokuvala inkulu, kwaye ixesha lokuvula nokuvala lide.I-stroke ye-valve ye-valve ye-valve yokuvala i-valve incinci kakhulu, kwaye i-valve ye-valve ye-valve yokuvala ingamiswa kwindawo ethile ngexesha lokuhamba kokulungiswa kokuhamba.Ivalve yesango ingasetyenziselwa ukusika kuphela, kwaye ayinayo eminye imisebenzi.
3. Umahluko wokusebenza
Ivalve yokuvala ingasetyenziselwa ukusika kunye nokulungelelanisa ukuhamba.Ukuxhathisa ulwelo lwevalve yeglowubhu kukhulu, kwaye kunzima kakhulu ukuvula nokuvala, kodwa ngenxa yokuba umgama phakathi kwepleyiti yevalve kunye nomphezulu wokutywina umfutshane, ukuvulwa nokuvala istroke kufutshane.
Ngenxa yokubaivalve yesangoinokuvulwa ngokupheleleyo kwaye ivalwe ngokupheleleyo, xa ivulwe ngokupheleleyo, ukuchasana kokuhamba okuphakathi kwijelo lomzimba wevalve phantse i-zero, ngoko ke ukuvulwa kunye nokuvalwa kwevalve yesango kuya kusindisa kakhulu abasebenzi, kodwa isango likude. ukusuka kwindawo yokutywina kunye nexesha lokuvula kunye nokuvala ixesha elide..
4. Ufakelo kunye nokuhamba
Impembelelo yevalve yesango kumacala omabini iyafana.Akukho mfuneko yendlela yokungena kunye ne-outlet yokufakelwa, kwaye i-medium inokujikeleza kumacala omabini.Ivalve yokuvala kufuneka ifakwe ngokuhambelana ngqongqo kunye nesalathiso sophawu lotolo kumzimba wevalvu.Kukho kwakhona umgaqo ocacileyo malunga nolwalathiso lwe-inlet kunye ne-outlet ye-valve yokuvala.Ivalve yelizwe lam “iSanhua” imisela ukuba indlela yokuhamba kwevalve yokuvala iya kuba ukusuka phezulu ukuya ezantsi.
Ivalve yokuvala iphantsi kwaye iphezulu ngaphandle.Ukusuka ngaphandle, kuyacaca ukuba umbhobho awukho kumgca othe tye wesigaba esinye.Indlela yokuhamba yevalve yesango ikumgca othe tye.I-stroke yevalve yesango inkulu kunaleyo yevalve yokumisa.
Ukususela kumbono wokumelana nokuhamba, ukuchasana kokuhamba kwevalve yesango kuncinci xa kuvuliwe ngokupheleleyo, kwaye ukuchasana kokuhamba kwevalve yokumisa umthwalo kukhulu.I-coefficient yokumelana nokuhamba kwevalve yesango eqhelekileyo imalunga ne-0.08 ~ 0.12, amandla okuvula kunye nokuvala kuncinci, kwaye i-medium inokuhamba ngeendlela ezimbini.
Ukumelana nokuhamba kweevalve eziqhelekileyo zokuvala ngama-3-5 amaxesha eevalve zesango.Xa uvula kwaye uvala, kufuneka unyanzeliswe ukuvala ukufezekisa itywina.Ingundoqo yevalve yevalve yokumisa ayiqhagamshelani nomphezulu wokutywina xa ivalwe ngokupheleleyo, ngoko ke ukunxiba kwendawo yokutywina kuncinci kakhulu.Ivalve yokumisa ekufuneka yongeze i-actuator ngenxa yegunya eliphambili lokuhamba kufuneka linikele ingqalelo kwindlela yokulawula i-torque Uhlengahlengiso.
Xa i-valve yokuvala ifakwe, i-medium ingangena ukusuka ngaphantsi kwe-valve core kwaye ingene ukusuka phezulu ngeendlela ezimbini.
Inzuzo yokungena okuphakathi ukusuka ngaphantsi kwesiseko se-valve kukuba ukupakisha akukho phantsi koxinzelelo xa i-valve ivaliwe, enokwandisa ubomi benkonzo yokupakisha, kwaye inokutshintsha indawo yokupakisha xa umbhobho phambi kwevalve iphantsi. uxinzelelo.
Ukungalungi kokungena okuphakathi ukusuka ezantsi kwe-valve core kukuba i-torque yokuqhuba yevalve inkulu ngokwentelekiso, malunga ne-1.05 ~ 1.08 amaxesha angentla kokungena, isiqu sevalve siphantsi kwamandla amakhulu e-axial, kunye nesiqu sevalve. kulula ukugoba.
Ngesi sizathu, indlela okungena ngayo okuphakathi ukusuka ngezantsi ngokuqhelekileyo ifanelekile kuphela kwiivalvu zokumisa ezincinci ze-diameter (ngaphantsi kwe-DN50).Kwiivalvu zokumisa ngaphezulu kwe-DN200, i-medium ingena ukusuka phezulu.Ivalve yokuvala umbane ngokuqhelekileyo ithatha indlela engena ngayo ukusuka phezulu.
Ukungalungi kwendlela i-medium engena ngayo isuka phezulu ichasene nendlela engena ngayo ukusuka ngaphantsi.Enyanisweni, inokuqukuqela kumacala omabini, iqwalasela nje iimbono ezahlukeneyo.
5. Isitywina
Umphezulu wokutywina weglowubhuivalvelicala elincinci le-trapezoidal ye-valve core (jonga ubume be-valve core ngeenkcukacha).Emva kokuba i-valve core iwa, ilingana nokuvala i-valve (ukuba ukuhlukana koxinzelelo kukhulu, ngokuqinisekileyo ukuvala akuqinanga, kodwa i-anti-reverse effect ayibi).Ivalve yesango ivalwe ecaleni kwepleyiti yevalve engundoqo yesango, isiphumo sokutywina asilunganga njengevalve yokumisa, kwaye undoqo wevalve awuyi kuvalwa njengevalve yokumisa xa undoqo wevalve usihla.