Ivalve yesango okanye ivalve yebhola yevalve enkulu yodayamitha? Yintoni umahluko phakathi kwezi zimbini?

Ivalve yesango okanye ivalve yebhola yevalve enkulu yodayamitha? Yintoni umahluko phakathi kwezi zimbini?

Kubomi bokwenyani, zininzi iimveliso zevalve, kodwa ivalve esetyenziswa ngokuqhelekileyo yivalve yebhola kunye nevalve yesango, kodwa kunye nokusetyenziswa kwevalve yokukhangela. Kodwa kwabo bakhetha iivalve zebhola kunye neevalve zesango, ngaphambi kokuthenga, siya kuqonda ukusetyenziswa kunye nokusebenza kakuhle kwezi kunye nomahluko phakathi kwazo, kunye nendlela yokukhetha iivalve zebhola ezisemgangathweni kunye neevalve zesango, namhlanje makhe sithethe malunga neevalve ezinkulu ezine-caliber. iivalve zesango okanye iivalve zebhola? Yintoni umahluko phakathi kwezi zimbini?

Ivalve enkulu yesango yevalve okanye ivalve yebhola
Ivalve yesango elikhulu, ivalve encinci yebhola.
Eyesibini, ivalve yesango kunye nevalve yebhola phakathi komahluko yintoni
I-1, umahluko wesakhiwo sevalve engundoqo
Ivalve yebhola yondoqo wevalve yebhola, kuba ubume bevalve yebhola esisigxina phantsi kwemeko yombane ophezulu, ngakumbi iimeko ezivaliweyo, ivalve yebhola emileyo, isihlalo sayo esiphezulu kwaye inyibilikiswe phantsi kwenxalenye ye-shaft ivela kuxinzelelo lomsebenzi wezinto eziphathekayo, kunye nebhola yevalve. hayi ukuya embindini kunye nezantsi ukufikelela ekutenxeni, izalani ezincinci phakathi kunye nokufikelela ezantsi kwesihlalo ukuthatha uxinzelelo lomsebenzi.
Ngoko ivalve kwindawo yokulahla i-sliding friction incinci, umonakalo wesihlalo uncinci, ubomi bevalve bude, ngokukodwa ngokuphindaphindiweyo indawo yevalve, isakhiwo esinjalo sifanelekile ngakumbi.
Ingundoqo yevalve yesango yi-wedge disc okanye le diski ehambelanayo. Akukho shaft exhasayo ngaphantsi kwayo. Ivalve phantsi koxinzelelo oluphezulu lokusebenzisa, kwaye ukucima imeko, ipleyiti yevalve ubukhulu becala ivela kumsebenzi wezinto eziphathekayo phantsi koxinzelelo, kwaye ngenxa yeplani yeplate yayo yeplate yevalve, umsebenzi wazo zonke iziphumo zoxinzelelo lwempahla kwipleyiti yevalve kunye, ipleyiti yevalve iya kubambelela kuxinzelelo kumbindi kunye nokufikelela okusezantsi kwesihlalo (ngaxeshanye indima yomthwalo ogqithisileyo kwipleyiti yevalve ijinga phezu kwayo, Iyakwenza ipleyiti yevalve nokuba luhlobo lwe wedge okanye ukusetyenzwa ngokuhambelana kwevalve yesango eliphindwe kabini, kuya kubakho i-deformation ethile), ivalve xa ivulwa ukulahla ukukhuhlana okukhulu kokutyibilika, umonakalo wesitulo sevalve uprinte umjikelo wevalve mfutshane.
2, umahluko isihlalo isakhiwo
Isihlalo sevalve isakhiwo sangaphakathi sinemithombo ye-torsion, kunye noyilo lokutywinwa kwendawo yokuhlala yenza intsalela kwizinto ezinzima ukungena kwindawo yokuhlala. Kwaye isihlalo sevalve phantsi kwefuthe lespring sheet ukudibana kwexesha elide kunye nebhola yevalve, ngoko kwindawo yevalve, isihlalo sevalve sinomphumela othile we-scraper, sinokunamathela kwintsalela kwi-Angle valve emva kwexesha elide lokusebenza. ukukrazula, kwaye ngoko kunokuqinisekisa iimpawu zokutywinwa kwexesha elide levalve.
Ingakumbi isetyenziswa kuxinzelelo oluphezulu lobushushu obuphezulu, kuba isihlalo, ibhodi yesekethe yeoyile, izixhobo zevalve yevalve xa ukhetha iinketho zine-coefficient efanayo yolwandiso lwemathiriyeli, nazo zinesihlalo sesakhiwo se-torsion spring kunye neevalvu ngokulandelelana. icimile, umahluko omkhulu wobushushu kunye nobushushu obuphantsi, ayilonakalisi indawo yevalvu, ivalve ayizukubangela ubume bokutshixa ivili.
Isihlalo sevalve yesango sincinci, ekusetyenzisweni kobushushu obuphezulu, xa ivalve ivaliwe, ngenxa yokuba izinto azikho ukujikeleza kwempahla, ngoko ke ubushushu buyancipha, ngoko isihlalo siya kuqina, kwaye emva koko kubangele i-clamping force enkulu kakhulu kwipleyiti yevalve.
Xa i-valve ivulwa kwakhona, i-torque enkulu kufuneka isetyenziswe ukulahla le mandla e-clamping, enokubangela umonakalo omkhulu kakhulu kwisihlalo, ukuphazamisa ubomi benkonzo yesihlalo. Oku kuchaphazela ubomi bevalve. Ukongezelela, ngenxa yobunzima be-valve yesango ngokwayo xa i-valve ivaliwe, i-valve iya kuvelisa amandla amakhulu empembelelo kunye nengxolo enkulu.
3. Umahluko kumalungiselelo ohambo
Ukubethelwa kwevalve yebhola kulungiselelo lwe-angular stroke, ngoko ke kwindawo yofakelo incinci, ukuphakama okuphantsi. Ulungiselelo lokuhamba lwevalve yesango luhamba ngokuthe tye, ngoko ke indawo yangaphakathi inkulu kwaye ukuphakama okuhambelanayo kuphezulu.
4. Umahluko phakathi kwee-activators
Ngenxa yoyilo olusisigxina lwebhola, ukuvulwa kunye nokuvala ixabiso le-torque lincinci, ngoko i-actuator ihambelana nencinci. Ngenxa yokuba ipleyiti yevalve ibamba ngamandla esitulweni, ukuze uhlukane nolu hlobo lokukhuhlana okukhulu okutyibilikayo kufuna itorque enkulu, i actuator enkulu.
5. Umahluko wezinto ezingenayo
Ivalve yebhola yokuqukuqela kabini, akukho ngxaki yofakelo lokuqukuqela kwindawo. Iivalvu zesango ngokubanzi zihamba kunye.
6, umahluko phakathi kwesondlo
Ngokuqhelekileyo ayifuni ukugcinwa, ngokukodwa ibhola le-valve kunye nesihlalo, ngenxa yomonakalo omncinci, ngokuqhelekileyo akufuneki ukuba isuswe kwiminyaka emi-5. Ivalve yesango idinga ukulungiswa ngenxa yomonakalo wesihlalo.