Ulwazi lweValve: Iimpawu ezisebenzayo zetorque yeevalvu ezisikiweyo kunye neevalve zebhola ukugcinwa kwemihla ngemihla kweevalve zokutshekisha.

Ulwazi lweValve: Iimpawu ezisebenzayo zetorque yeevalvu ezisikiweyo kunye neevalve zebhola ukugcinwa kwemihla ngemihla kweevalve zokutshekisha.

I-torque esebenzayo ye-curve ye-valve yokusika iphezulu embindini kwaye iphantsi kumacala omabini. Isizathu sale meko kukuba, xa ivalve esikiweyo ikwindawo esembindini, ulwelo luvalwe yipleyiti yebhabhathane, lujikeleze ubumanzi bepleyiti yebhabhathane, luya kuveliswa kumacala omabini epleyiti yebhabhathane ejikelezayo yangoku, ibhabhathane. ipleyiti ivelisa umzuzu wamanzi wangaphambili, umzuzu uqhutywa ukurhoxisa ipleyiti yebhabhathane. Ngokuvula okanye ukuvalwa kwepleyiti yebhabhathane, impembelelo yokuqukuqela okujikelezayo okubangelwa lulwelo kumacala omabini epleyiti yebhabhathane iya isiba ncinci kwaye incinci, de ideyagram yetorque yokusebenza yevalve yebhola ephantsi ifane kakhulu naleyo ivalve esikiweyo, esona sizathu siphambili nangenxa yempembelelo yolwelo kwisphere ebangelwa kukutshintsha kokungena.
(a) Iimpawu zokusebenza kwesivalo esisikiweyo
I-torque esebenzayo ye-curve ye-valve yokusika iphezulu embindini kwaye iphantsi kumacala omabini.
Isizathu sale meko kukuba, xa ivalve esikiweyo ikwindawo esembindini, ulwelo luvalwe yipleyiti yebhabhathane, lujikeleze ubumanzi bepleyiti yebhabhathane, luya kuveliswa kumacala omabini epleyiti yebhabhathane ejikelezayo yangoku, ibhabhathane. ipleyiti ivelisa umzuzu wamanzi wangaphambili, umzuzu uqhutywa ukurhoxisa ipleyiti yebhabhathane. Ngokuvula okanye ukuvalwa kwepleyiti yebhabhathane, impembelelo yolwelo kumacala omabini ebhabhathane ebangelwa yi-vortex flow incinci kwaye incinci, de inkanyamba ide iphele, ngeli xesha ukuxhathisa kwe-friction ye-butterfly plate nayo incinci. kunye nokuncinci, okubangelwa kwiziko eliphezulu, iimpawu eziphantsi zamacala amabini omzobo. I-torque yangempela yokusebenza kwinkqubo yokuvula i-valve yesango inkulu kunaleyo kwinkqubo yokuvala. Esona sizathu sesokuba i-torque ye-hydrodynamic ebangelwa lulwelo kwipleyiti yebhabhathane isoloko ibhekisa kwiAngle yokuvala.
Eyona torque enkulu yokwenyani yokusebenza yevalve yokumisa engatywinwanga yenzeka kwindawo esembindini, ngelixa eyona torque enkulu yokwenyani yokusebenza yevalve yokumisa etywiniweyo yenzeka xa ivalve yesango ivaliwe, ngenxa yetorque eyongezelelweyo yokutywina.
Isihlalo sevalve yevalve esikiweyo kuphela kwintshukumo ejikelezayo, idiski yayo kunye nesitulo ngokwaso asitshixwanga amandla. Ukuze wenze i-disc yokubeka echanekileyo (ukuphelisa kwindawo echaziweyo), enye indlela idinga i-reducer eyongezelelweyo kunye namandla okuvala kwisihlalo. Emva kokunciphisa iplanethi eyongezelelweyo, isantya se-angular sinokunyuswa ukuya kwiinguqu ezininzi, ngelixa i-torque yangempela yokusebenza iyancipha. Oku kuvumela ezinye iimpawu zokusebenza zokwenyani zevalve yokuvala (ezifana nokujika okupheleleyo kunye ne-torque yangempela yokusebenza) ukuba isondele kwezinye iivalvu zesango, ezilungele ukusetyenziswa kwezixhobo zombane.
Ukuvalwa ngokunyanzeliswa kwe-valve yokuvala, indawo yayo yokuvala kufuneka igqitywe yi-torque yangempela yokusebenza ephakama kwixabiso eliqhelekileyo.
(2) Iimpawu zokusebenza zeValve Iimpawu zokusebenza zetorque:
Idayagram yeempawu zetorque esebenzayo yevalve yebhola ifana kakhulu naleyo yevalve esikiweyo, esona sizathu siphambili nangenxa yefuthe lokuhamba kolwelo olubangelwa lutshintsho lokungena kwi-sphere. Imiphumo yokuhamba kwe-cyclone iyancipha ngokuthe ngcembe ngokuvula okanye ukuvalwa kwevalve.
Ivalve yebhola ukusuka ekuvuleni ukuya ekuvaleni, isihlalo sevalve indlela yokujikeleza yi-90%, ivalve yebhola ukuseta umda womatshini. Isiqalo okanye indawo yokuvala yevalve yebhola kufuneka imiselwe yindlela yokujikeleza kwesihlalo sevalve, ngoko ke ivalve yebhola ibekwe ngokuhambelana nolungiselelo lokuhamba.
Ukugcinwa kwemihla ngemihla kwe-valve yokukhangela i-valve ye-valve yokugcinwa kwe-valve ye-flange yebhola ye-flange kufuneka ingabi namanzi, i-fume-proof, i-waterproof, kunye ne-flange covert tightly, igcinwe ngaphezu kweenyanga ezili-12 zevalve yesango, isicelo kufuneka sihlolwe kwakhona ukuqinisekisa umgangatho ozinzile. Ukuba ukuvuza okuncinci kufunyenwe kwizinto zokuzalisa ngexesha lokusetyenziswa, i-valve stem nut inokuqiniswa kancinane de kube ukuvuza kupheliswe, kungaqiniswa kwakhona. Ivalve yebhola yeflange ngokubanzi zisebenzisa i-tetrafluoride (PTFE) njengezitywina zerabha, umphezulu wevalve yebhola yeflange yokuwelda ngesinyithi. Ukuba ivalve yebhola yombhobho ifuna ukucocwa, qaphela ukuphepha ukonakalisa umsesane wokutywina kunye nokuvuza ngexesha lokuqhawula.
I-valve yebhola ye-Flange kufuneka ingabi namanzi, i-umswakama-umswakama, ingenamanzi xa igcinwe, kwaye i-flange cover iqinile, igcinwe ngaphezu kweenyanga ze-12 ze-valve yesango, isicelo kufuneka sihlolwe kwakhona ukuze kuqinisekiswe ukuzinza komgangatho. Ukuba ukuvuza okuncinci kufunyenwe kwizinto zokuzalisa ngexesha lokusetyenziswa, i-valve stem nut inokuqiniswa kancinane de kube ukuvuza kupheliswe, kungaqiniswa kwakhona. Ivalve yebhola yeflange jikelele zisebenzisa i-tetrafluoride (PTFE) njengezitywina zerabha, umphezulu wevalve yebhola yeflange ukuwelda ngesinyithi. Ukuba ivalve yebhola yombhobho ifuna ukucocwa, qaphela ukuphepha ukonakalisa umsesane wokutywina kunye nokuvuza ngexesha lokuqhawula.
Isifakeli sevalve yebhola eneflange
I-1, i-nameplate yefektri ibonisa ukuba i-valve yebhola ye-flange ivumelekile ukuba isebenze kwiqondo lokushisa elikhulu kakhulu xa kuthelekiswa neqondo lokushisa elincinci le-King Kong grade.
I-2, i-valve yebhola ye-flange ene-PTFE okanye i-RTFE imathiriyeli yoxinzelelo oluphezulu lwe-valve yesango kunye ne-hydraulic seals, ubushushu obusebenzayo kufuneka bube phakathi -290C ukuya kwi-2000C. Ubushushu bokusebenza kwezinye iintlobo zeevalvu zesango loxinzelelo oluphezulu kunye nezitywina zehydraulic ziya kujongwa yi-KI factory.
I-3, i-diameter yegama leklasi yevalve (PN), ingabonisa ukuba ivalve kwimeko yobushushu obuqhelekileyo buxinzelelo olukhulu kakhulu. (Umzekelo: PN4.0, ebonisa ukuba ubushushu bokusebenza -290C ~ 380C emva koxinzelelo olukhulu kakhulu lwe-40 Bar (4.0MPa)).
Iklasi yogcino lwemihla ngemihla yevalve yebhola yeclamp
Enye, ivalve yebhola edadayo
Ibhola yevalve yebhola idada phezulu naphantsi, phantsi kweempembelelo zoxinzelelo olusebenzayo, ibhola inokuvelisa i-offset ethile kwaye iqinile kumphezulu wokungena wokungena, ukuqinisekisa ukuba ukutywinwa kuphelile. Ulwakhiwo lwevalvu yebhola edadayo lulula, ulwakhiwo oludityanisiweyo, kodwa ibhola ithatha umthwalo weendaba kwi-inlet kunye ne-outlet yokutywina umsesane, ngoko ke kufuneka siqonde umsesane wokutywina werabha unokumelana nomsebenzi ophakathi webhola. Esi sakhiwo sisetyenziselwa i-valve yebhola ephakathi kunye nephantsi.
Emibini, ivalve yebhola esisigxina
Ibhola yevalve yebhola ayitshintshi, emva kokuba amandla angayi kushukunyiswa. Iivalvu zebhola ezizinzileyo ziza neevalvu zesango eziguquguqukayo zoxinzelelo oluphezulu. Emva koxinzelelo olusebenzayo lwezinto eziphathekayo, i-valve yesango yoxinzelelo oluphezulu iyashukunyiswa, ukwenzela ukuba umsesane wokutywina ucinezele ngokuqinileyo kwibhola ukuqinisekisa ukuqina. Ngokubanzi kunye nelaphu lebhola, i-shaft esezantsi ixhotyiswe ngeebheringi eziqengqelekayo, i-torque encinci yokulawula, ilungele uxinzelelo oluphezulu kunye nomzimba omncinci wevalve yecaliber. Ukuze kuncitshiswe i-torque yokusebenza yevalve yebhola kunye nokunyusa izinga lokuthembeka kwesitywina, i-valve yebhola etywiniweyo yamathambo ibonakala kwiminyaka yamuva. Akunjalo kuphela ukubheja igrisi ekhethekileyo phakathi komphezulu ukwenza umaleko we-oyile slick, ophucula ukuqina kunye nokunciphisa i-torque yangempela yokusebenza. Kufanelekile ngakumbi kwi-valve yebhola kunye noxinzelelo oluphezulu kunye nobubanzi obuncinci.
Isithathu, ivalve yebhola elastiki
Ibhola yevalve yebhola iyaxinana. Ibhola kunye noxinzelelo oluphezulu lwesango lwevalve umsesane wokutywina zenziwe ngezinto ezihlanganisiweyo zetsimbi, uxinzelelo lokutywina lukhulu kakhulu, luxhomekeke kuxinzelelo lwezinto eziye lwadlula iimfuno zokuvalwa, imfuneko yokwandisa amandla angaphandle. Le valve yesango ifanelekile kuxinzelelo lwe-ultra-high kunye nezinto eziphezulu zokushisa. I-Elastic sphere yokuvula i-groove ethambileyo phantsi komgodi wesphere, kwaye ufumane amandla anwebekayo. Xa itshaneli yokhuseleko icinyiwe, ibhola ivulwa ngentloko yentsimbi yepiston kwaye ivalve yesango yoxinzelelo oluphezulu ixinzelelwe ukufezekisa ukutywinwa. Ngaphambi kokuba ujikelezise ibhola, qala ngokukhulula intloko yewedge, ibhola ngokubuyela kwiprototype eqhelekileyo, ukuze ibhola kunye nevalve yevalve embindini womsantsa, inokunciphisa eyona torque yokusebenza komphezulu wokukhuhlana.
Hlela ukugcinwa kwemihla ngemihla kwevalve yebhola yevalve yepitshi yokukhangela ngokwendawo yokudlula ekhuselekileyo
Ivalve yebhola ngokuhambelana nesikhundla sayo setshaneli yokhuseleko inokwahlulwa kuqhagamshelo oluthe ngqo, iindlela ezintathu okanye i-Angle ekunene. Iivalve ezimbini zokugqibela zebhola zisetyenziselwa ukusasaza izinto kunye nokutshintsha ukuhamba kwemidiya. Ufakelo lwevalvu yebhola kunye nokugcinwa kufuneka kuthathelwe ingqalelo le miba ilandelayo: 1. Shiya inxalenye ejikelezayo yesiphatho sevalvu. 2. Ayinakusetyenziswa njengevalve ye-throttle. Iivalvu zebhola ezinezixhobo zothumelo kufuneka zidityaniswe ngokuthe tye.
Ukugcinwa kwemihla ngemihla kwebhola yevalve yokukhangela i-clamp
Ukucoca ivalve yebhola ye-flange, ukucoca ngokucokisekileyo uthuli olushiyekileyo, amabala e-oyile kunye nezinye izihlomelo, ezifana namanzi afudumeleyo azikwazi ukucocwa, azikwazi ukutshabalalisa ibhodi yesiphaluka yeoli kunye neenxalenye eziphantsi kwendawo, ekujoliswe kuyo ngotywala kunye nezinye izinto zokucoca. Ukucocwa kwevalve yebhola yeflange emva kokuba isicoci siphume ngumphunga ngokupheleleyo phambi kofakelo. Umzimba wevalve yebhola ye-Flange useyinxalenye yentsalela yezinto, kwakhona phantsi koxinzelelo oluthile lokusebenza. Ngaphambi kokugcinwa kwevalve yebhola, kuyimfuneko ukucima i-valve yebhola ngaphambi kokuba imeko engxamisekileyo inqumle i-valve, uvule i-valve yebhola ekufuneka ilungiswe, kwaye ukhulule ngokupheleleyo i-flange ibhola yevalve ye-oyile yesiphaluka ipleyiti ye-oyile yesekethe yesakhiwo sangaphakathi soxinzelelo olusebenzayo.