Ulwazi lwe-valve: Izici ezisebenzayo ze-torque zama-valve anqanyuliwe kanye nama-valve ebhola ukugcinwa kwansuku zonke kwama-valve okuhlola

Ulwazi lwe-valve: Izici ezisebenzayo ze-torque zama-valve anqanyuliwe kanye nama-valve ebhola ukugcinwa kwansuku zonke kwama-valve okuhlola

Ijika lesici se-torque esebenzayo ye-valve esikiwe iphezulu phakathi futhi iphansi nhlangothi zombili. Isizathu salesi simo siwukuthi, lapho i-valve enqamukile isendaweni emaphakathi, uketshezi luvinjelwa ipuleti levemvane, luvimbe i-liquidity yepuleti uvemvane, luzokhiqizwa nhlangothi zombili zepuleti levemvane elinyakazayo, uvemvane. ipuleti likhiqiza umzuzu wamanzi osekupheleni, umzuzu uqhutshwa ukukhansela ipuleti levemvane. Ngokuvuleka noma ukuvalwa kwepuleti uvemvane, umthelela wokugeleza okuzungezayo okubangelwa uketshezi oluzo zombili izinhlangothi zepuleti uvemvane liya liba lincane futhi libe lincane, kuze kube yilapho umdwebo wesici setorque yokusebenza we-valve yebhola enciphayo ufana kakhulu nalowo we-butterfly plate. i-valve yokunqamula, isizathu esiyinhloko futhi kungenxa yethonya loketshezi olusendimeni okubangelwa ukushintsha kokungena.
(a) Izici zokusebenza zevalvu enqamuliwe
Ijika lesici se-torque esebenzayo ye-valve esikiwe iphezulu phakathi futhi iphansi nhlangothi zombili.
Isizathu salesi simo siwukuthi, lapho i-valve enqamukile isendaweni emaphakathi, uketshezi luvinjelwa ipuleti levemvane, luvimbe i-liquidity yepuleti uvemvane, luzokhiqizwa nhlangothi zombili zepuleti levemvane elinyakazayo, uvemvane. ipuleti likhiqiza umzuzu wamanzi osekupheleni, umzuzu uqhutshwa ukukhansela ipuleti levemvane. Ngokuvula noma ukuvala ipuleti uvemvane, umthelela woketshezi ezinhlangothini ezimbili zovemvane olubangelwa ukugeleza kwe-vortex lincane futhi lincane, kuze kuphele isiphepho, ngalesi sikhathi ukumelana nokungqubuzana kwepuleti uvemvane nakho kuncane. futhi ezincane, okuholela esikhungweni esiphakeme, izici eziphansi zezinhlangothi ezimbili zomdwebo. I-torque yangempela yokusebenza ekuvuleni kwe-valve yesango inkulu kunaleyo enqubweni yokuvala. Isizathu esiyinhloko ukuthi i-torque ye-hydrodynamic ebangelwa uketshezi olusepuletini uvemvane ihlale ibheke e-Engeli yokuvala.
I-torque enkulu kakhulu yokusebenza yevalvu yokumisa engavalwanga nge-hermetically yenzeka endaweni emaphakathi, kuyilapho i-torque enkulu kakhulu yokusebenza yevalvu yokumisa evalwe nge-hermetically yenzeka lapho i-valve yesango ivaliwe, ikakhulukazi ngenxa yetorque eyengeziwe ephoqelelwe yokuvala.
Isihlalo se-valve ye-valve enqanyuliwe kuphela ukunyakaza okujikelezayo, i-disc yayo nesihlalo ngokwaso akuwona amandla akhiyiwe. Ukuze wenze i-disc ibe nokuma okunembile (ukunqamula endaweni eshiwo), indlela eyodwa idinga isinciphisi esengeziwe esinamandla okukhiya esihlalweni. Ngemuva kokunciphisa okungeziwe kweplanethi, isivinini se-angular singanyuswa sibe ngamajika amaningi, kuyilapho i-torque yangempela yokusebenza incishisiwe. Lokhu kuvumela izici ezithile zokusebenza zangempela zevalvu enqamuliwe (njengokuphenduka okuphelele kanye netorque yangempela yokusebenza) ukuthi zisondele kwamanye amavalvu esango, okuhambisana nokusetshenziswa kwemishini kagesi.
Ngokuvalwa okuphoqelekile kwe-valve yokusika, indawo yayo yokuvala kufanele inqunywe yi-torque yangempela yokusebenza ekhuphuka inani elijwayelekile.
(2) Izici zokusebenza ze-Valve Izici zokusebenza ze-torque:
Umdwebo wesici se-torque esebenzayo we-valve yebhola ufana kakhulu nowe-valve esikiwe, isizathu esiyinhloko futhi kungenxa yethonya lokugeleza koketshezi okubangelwa izinguquko ekungeneni kwe-sphere. Imiphumela yokugeleza kwesiphepho iyancipha kancane kancane ngokuvula noma ukuvala i-valve.
I-valve yebhola kusukela ekuvuleni kuye ekuvaleni, isihlalo se-valve sokuzungezisa isiqondiso singu-90%, i-valve yebhola ukusetha umkhawulo wemishini. Isiqalo noma ingxenye yokuvala ye-valve yebhola kufanele inqunywe isiqondiso sokujikeleza kwesihlalo se-valve, ngakho-ke i-valve yebhola ibekwe ngokuvumelana nokuhlelwa kokuhamba.
Ukugcinwa kwansuku zonke kwe-valve yokuhlola i-valve ye-clamp ye-valve yesondlo nsuku zonke isitoreji se-valve ye-flange ibhola kufanele ingabi namanzi, i-umswakama-umswakama, ingabi namanzi, kanye nekhava ye-flange ngokuqinile, igcinwe ngaphezu kwezinyanga ezingu-12 ze-valve yesango, isicelo kufanele sihlolwe kabusha ukuze kuqinisekiswe ikhwalithi ezinzile. Uma ukuvuza okuncane kutholakala ezintweni zokugcwalisa ngesikhathi sokusetshenziswa, i-valve stem nut ingaqiniswa kancane kuze kube yilapho ukuvuza kuqedwa, hhayi ukuqiniswa futhi. Ivalvu yebhola ye-flange evamile zisebenzisa i-tetrafluoride (PTFE) njengezigxivizo zenjoloba, i-valve ye-flange yebhola yokushisela isifutho sensimbi. Uma i-valve yebhola yepayipi idinga ukuhlanzwa, qaphela ukuthi ugweme ukulimaza iringi yokuvala nokuvuza ngesikhathi sokuqaqa.
I-valve yebhola ye-Flange kufanele ingabi namanzi, ifaka umswakama, ingabi namanzi uma igcinwe, futhi isembozo se-flange siqinile, sigcinwe ngaphezu kwezinyanga ezingu-12 ze-valve yesango, isicelo kufanele sihlolwe kabusha ukuze kuqinisekiswe ukuzinza kwekhwalithi. Uma ukuvuza okuncane kutholakala ezintweni zokugcwalisa ngesikhathi sokusetshenziswa, i-valve stem nut ingaqiniswa kancane kuze kube yilapho ukuvuza kuqedwa, hhayi ukuqiniswa futhi. I-valve yebhola ye-flange evamile zisebenzisa i-tetrafluoride (PTFE) njengezigxivizo zenjoloba, i-valve ye-flange yebhola yokushisela isifutho sensimbi. Uma i-valve yebhola yepayipi idinga ukuhlanzwa, qaphela ukuthi ugweme ukulimaza iringi yokuvala nokuvuza ngesikhathi sokuqaqa.
Isifakeli se-valve yebhola ye-Flange
I-1, i-nameplate yefekthri ibonisa ukuthi i-valve yebhola ye-flange ivunyelwe ukusebenza ekushiseni okukhulu kakhulu uma kuqhathaniswa nezinga lokushisa eliphansi lokusebenza lebanga le-King Kong.
I-2, i-valve yebhola ye-flange ene-PTFE noma i-RTFE impahla ye-valve yesango lomfutho ophezulu kanye nama-hydraulic seals, izinga lokushisa elisebenzayo lidinga ukuba phakathi -290C kuya ku-2000C. Izinga lokushisa elisebenzayo lezinye izinhlobo zama-valve amasango omfutho ophezulu kanye nezimpawu ze-hydraulic kufanele zihlolwe yi-KI factory.
I-3, i-diameter yesigaba se-valve (PN), ingabonisa ukuthi i-valve esimweni sokushisa esijwayelekile ingcindezi enkulu kakhulu. (Isibonelo: PN4.0, okubonisa ukuthi izinga lokushisa lokusebenza -290C ~ 380C ngemva kokucindezela okukhulu kakhulu kwe-40 Bar(4.0MPa)).
I-clamp check valve ball valve ikilasi lokulungisa nsuku zonke
Eyodwa, ivalve yebhola elintantayo
Ibhola le-valve lintanta phezulu naphansi, ngaphansi kwethonya lengcindezi yokusebenza kwezinto, ibhola lingakhiqiza i-offset ethile futhi liqine endaweni yokugcina yokungena, ukuze kuqinisekiswe ukuthi i-outlet iphetha ukuvala uphawu. Isakhiwo se-valve yebhola elintantayo silula, isakhiwo esihlangene, kodwa ibhola lithatha umthwalo wayo yonke imidiya endaweni yokufaka uphawu nendandatho yokukhipha uphawu, ngakho-ke kufanele siqonde ukuthi indandatho yokuvala irabha ingamelana nomsebenzi ophakathi kwebhola. Lesi sakhiwo sisetshenziselwa ama-valve ebhola aphakathi naphansi.
Okubili, i-valve yebhola engashintshi
Ibhola le-valve ibhola lihlala njalo, ngemuva kokuthi amandla angeke anyakaze. Ama-valve ebhola angaguquki afika nama-valve esango anomfutho ophakeme ashintshashintshayo. Ngemuva kokucindezelwa kokusebenza kwezinto ezibonakalayo, i-valve yesango elicindezelayo iyasuswa, ukuze indandatho yokuvala icindezelwe ngokuqinile ebhola ukuze kuqinisekiswe ukuqina. Ngokuvamile ngaphakathi nendwangu yebhola, i-shaft engezansi ifakwe ama-ringling bearings, i-torque encane yokulawula, ifanele ukucindezela okuphezulu kanye nomzimba we-valve encane. Ukuze kuncishiswe i-torque yokusebenza ye-valve yebhola futhi kwandiswe izinga lokwethenjelwa kophawu, i-valve yebhola evaliwe yamathambo ivele eminyakeni yamuva. Akukhona nje ukubheja amafutha akhethekile phakathi kwendawo ukuze kwakhiwe ungqimba lukawoyela olushelelayo, okuthuthukisa ukuqina nokunciphisa itorque yangempela yokusebenza. Ifaneleka kakhulu i-valve yebhola enengcindezi ephezulu kanye nobubanzi obuncane.
Okwesithathu, i-valve yebhola enwebekayo
Ibhola le-valve yebhola liyaqina. Ibhola nokucindezela okukhulu kwesango i-valve seal ring zenziwe ngezinto ezihlanganisiwe zensimbi, ingcindezi yokubeka uphawu inkulu kakhulu, incike ekucindezelweni kwezinto ezibonakalayo idlule izidingo zokuvalwa, isidingo sokwandisa amandla angaphandle. Le valve yesango ifaneleka kumfutho we-ultra-high kanye nezinto zokushisa eziphezulu. I-Elastic sphere yokuvula inkatho ethambile ngaphansi kwesikhala se-sphere, futhi uthole amandla anwebekayo. Lapho ishaneli yokuphepha icishiwe, ibhola livulwa ngekhanda eliwunqenqema lenduku ye-piston futhi i-valve yesango yokucindezela okukhulu iyaminyana ukuze kuzuzwe uphawu. Ngaphambi kokuzungezisa ibhola, qala ngokukhulula inhloko ye-wedge, ibhola ngokubuyela ku-prototype evamile, ukuze ibhola kanye ne-valve block phakathi negebe, kunganciphisa i-torque yangempela yokusebenza kwendawo yokungqubuzana.
Hlela ukugcinwa kwansuku zonke kwe-valve yebhola ye-pinch check valve ngokusho kwendawo yokudlula ephephile
I-valve yebhola ngokuhambisana nendawo yayo yesiteshi sokuphepha ingahlukaniswa ibe ukuxhumana okuqondile, indlela emithathu noma i-Angle yesokudla. Ama-valve amabili okugcina ebhola asetshenziselwa ukusabalalisa izinto kanye nokushintsha ukuhamba kwemidiya. Ukufakwa kwe-valve yebhola kanye nokugcinwa kudinga ukunaka lezi zindaba ezilandelayo: 1. Shiya ingxenye ejikelezayo yesibambo sevalvu. 2. Ayikwazi ukusetshenziswa njenge-valve yomphimbo. Ama-valve ebhola anemishini yokudlulisela kufanele ahlanganiswe aqonde.
Ukugcinwa kwansuku zonke kwebhola le-valve yokuhlola i-clamp
Ukuhlanza i-valve yebhola ye-flange, ukuhlanza ngokuphelele uthuli olusele, amabala kawoyela nezinye izithasiselo, njengamanzi afudumele azikwazi ukuhlanzwa, azikwazi ukubhubhisa ibhodi lesifunda samafutha kanye nezingxenye ngaphansi kwesisekelo, okuhloswe ngazo ngotshwala nezinye izinto zokuhlanza. Ukuhlanza i-valve yebhola ye-Flange ngemva kokuba isicoci sihwamuke ngokuphelele ngaphambi kokufakwa. Umzimba we-valve yebhola le-Flange useyingxenye esele yezinto, futhi ngaphansi kwengcindezi ethile yokusebenza. Ngaphambi kokugcinwa kwe-valve yebhola, kuyadingeka ukuvala i-valve yebhola ngaphambi kokuba izimo eziphuthumayo zinqamule i-valve, uvule i-valve yebhola okufanele ilungiswe, futhi ukhulule ngokuphelele i-flange ye-valve ye-valve yamafutha wesekethe ipuleti yangaphakathi yokusebenza kwengcindezi.