Ulwahlulo kunye nolwalathiso lofakelo lweevalvu zokutshekisha
Isishwankathelo sevalve yokukhangela
Iivalve zokuhlola zisisixhobo esibalulekileyo sokulawula ulwelo, olusetyenziswa kakhulu kwiiprojekthi zogcino lwamanzi, iikhemikhali zepetroli, ukukhuselwa kokusingqongileyo kunye nezinye iinkalo.Umsebenzi wayo oyintloko kukuthintela ukubuya kweendaba kunye nokuqinisekisa ukuhamba kwendlela enye yeendaba kwinkqubo yombhobho.Ukwahlula kunye nokufakwa kolwalathiso lwee-valve zetshekhi kuchaphazela ngokuthe ngqo ukusebenza kwabo kunye nobomi benkonzo.Eli nqaku liza kwazisa iintlobo ezahlukeneyo zeevalve zokutshekisha kunye neengqwalasela kwiindlela zabo zokufakela ngokubanzi.
Iindidi eziphambili zeevalvu zokukhangela
Ngokwesakhiwo kunye nomgaqo wokusebenza, iivalve zokutshekisha zahlulwe ikakhulu kwezi ntlobo zilandelayo:
1. Ivalve yokujonga ipleyiti ephindwe kabini
2. Phakamisa ivalve yokukhangela
3. Ivalve yokukhangela ibhola
4. Ivalve yokujonga ujingi
Uhlobo lwendlela yokufakela ivalve yokukhangela
1. Ufakelo oluthe tye: ibhekiselele kwindlela yokufaka i-valve yokukhangela kumbhobho othe tye, osetyenziswa rhoqo kwiinkqubo zemibhobho yoxinzelelo oluphantsi, kunye nobubanzi be-flap yevalve bukhulu kunobubanzi bombhobho.
2. Ufakelo oluthe nkqo: ibhekiselele kwindlela yokufakela ivalve yokukhangela kumbhobho othe nkqo, osetyenziswa rhoqo kwiinkqubo zemibhobho yoxinzelelo oluphezulu, kwaye ububanzi beflap yevalve buncinci kunobubanzi bombhobho.
1. Ivalve yokujonga idiskhi kabini
Ivalve yokujonga iidiski ezimbini: ngokuqhelekileyo iqukethe iidiski ezimbini ze-semicircular ezihamba malunga ne-stem perpendicular ukuya kumbindi wokuhamba kwamanzi.Iivalvu zokujonga iidiskhi eziphindwe kabini zizivalo ezixineneyo ezinobude obuncinci.Zifakwe phakathi kweeflange ezimbini.Ngokuqhelekileyo ziyanyanzeliswa okanye ziboshwe.Ngokuqhelekileyo zisetyenziswa kwimibhobho enobubanzi be-≤1200mm.
Isalathiso sofakelo lwevalvu yokujonga idiskhi kabini
Iivalvu zokujonga iidiski eziphindwe kabini zinokufakwa ngokuthe tye okanye ngokuthe nkqo kumbhobho.Ufakelo oluthe tyaba lunokwenza ukuvulwa kunye nokuvalwa kwevalve yokukhangela echatshazelwe ngumxhuzulane, okwenza isantya sayo sokuvula sizinzile kwaye sinciphise ngempumelelo ilahleko yoxinzelelo lombhobho.Ufakelo oluthe nkqo lunokwenza ivalve ichatshazelwe ngumxhuzulane xa ivaliwe, nto leyo eyenza itywina layo libe ngqongqo.Ukongezelela, ukufakela okuthe tye kunokuthintela i-disc ye-valve yokutshekisha ukuba ishukume ngokukhawuleza ngexesha lokutshintsha ngokukhawuleza kwamanzi, ukunciphisa ukugungqa kwe-disc kunye nesihlalo se-valve, kunye nokwandisa ubomi benkonzo yevalve.
2. Ivalve yokujonga ujingi
Iivalve zokujonga ujingiube nediski yevalvu.Xa i-medium ihamba phambili, i-disc yevalve iyatyhilwa ivuleke;xa i-medium iqukuqela kwicala elingasemva, i-disc yevalve ihlwithwa ibuyele kwisihlalo sevalvu ukunqanda umva.Olu hlobo lwevalve luhlala lusetyenziswa kwimibhobho yobubanzi obukhulu ngenxa yesakhiwo sayo esilula kunye nokuchasana okuphantsi.
Isalathiso sokufakela i-Swing check valve
Iivalve zokujonga i-Swing zingafakelwa ngokuthe tye okanye ngokuthe nkqo, kodwa kucetyiswa ngokubanzi ukuba zifakwe kwimibhobho ethe tye.Kufuneka kuqatshelwe ukuba, kuxhomekeke kwimeko yangempela, i-valve yokukhangela i-swing ingaphinda ifakwe i-oblique, nje ukuba i-angle yokufakela ayidluli ama-degrees angama-45 kwaye indawo yokufakela ifanelekile, ayiyi kuchaphazela imisebenzi eqhelekileyo yokuvula nokuvala. yevalve.
3. Ivalve yokukhangela i-Horizontal lift
Idiskhi yevalve yevalve yokukhangela ihorizontal lift ihla inyuka ecaleni komgaqo kaloliwe kumzimba wevalvu.Xa i-medium ihamba phambili, i-valve disc iphakanyisiwe;xa i-medium iqukuqela kwicala elingasemva, i-disc yevalve iwela umva kwisihlalo sevalve ukunqanda umva.
Umkhombandlela wofakelo lwevalvu yokujonga iHorizontal lift
Ivalve yokukhangela i-horizontal lift kufuneka ifakwe kumbhobho othe tye.Ngenxa yokuba xa ifakwe ngokuthe nkqo, undoqo wevalve ikwimo ethe tye, ukusebenza kwayo okuphakathi kunye nesitulo sevalvu yehla phantsi kobunzima bayo, ichaphazela ukusebenza kokutywinwa kondoqo wevalve.
4. Ivalve yokukhangela iphakamisa ngokuthe nkqo
Ngokuba nkqophakamisa iivalve zokujonga, indlela yokuhamba ye-valve core ihambelana nolwalathiso lombhobho.Kwaye umbindi we-valve core uhambelana nombindi womjelo wokuhamba.
Isalathiso sofakelo lwevalvu yokujonga iLifti nkqo
Iivalve zokujonga ezithe nkqo kufuneka zifakwe ngokuthe nkqo kwimibhobho apho i-medium ihamba phezulu, kuba i-gravity inceda i-valve disc ivale ngokukhawuleza xa ukuhamba kuyeka.
5. Ivalve yokukhangela ibhola
Ivalve yokukhangela ibhola isebenzisa ibhola eyehla inyuka kumzimba wevalvu.Xa i-medium ihamba phambili, ibhola ityhalwa kude nesihlalo sevalve, itshaneli iyavula, kunye nokupasa okuphakathi;xa i-medium iqukuqela kwicala elingasemva, ibhola ibuyela kwisihlalo sevalve ukuthintela umva.
Isalathiso sofakelo lwevalvu yokujonga iBhola
Iivalve zokujonga ibhola zinokufakwa kwimibhobho ethe tyaba, kodwa ifaneleke ngakumbi ukufakwa ngokuthe nkqo, ngakumbi xa i-medium ihamba phezulu.Ubunzima obufileyo bebhola bunceda ivalve itywine xa ukuqukuqela kuyeka.
Izinto ezichaphazela ukufakwa ngokuthe nkqo kwevalve yokukhangela
Xa ufaka i-valve yokujonga ngokuthe nkqo, izinto ezininzi kufuneka ziqwalaselwe ukuqinisekisa ukusebenza kwayo okusebenzayo:
1. Indlela yokuhamba
Ekufakeni okuthe nkqo, isikhokelo sokuhamba kwe-medium sibalulekile.Xa igeleza phezulu, i-disc ye-valve inokuvulwa ngoxinzelelo lwe-medium, kwaye ukuvala ngubunzima obunceda i-valve disc ibuyele kwindawo yayo, ngelixa xa ihla ihla, amanyathelo angaphezulu anokufuneka ukuqinisekisa ukuba i-valve ivala ngokuthembekileyo.
2. Impembelelo yomxhuzulane
Ubunzima buchaphazela ukuvulwa nokuvalwa kwevalve.Iivalvu ezixhomekeke kumxhuzulane ukuze zitywinwe, ezinje ngepleyiti ephindwe kabini kunye neevalvu zokujonga ukuphakamisa, zisebenza ngcono xa zihamba ngokuthe nkqo ukuya phezulu.
3. Iimpawu zosasazo
Iimpawu zeendaba, ezifana ne-viscosity, ubuninzi, kunye nomxholo we-particle, zichaphazela ukusebenza kwe-valve.I-Viscous okanye i-particle-containing media inokufuna ukuyila okunamandla kunye nokugcinwa rhoqo ukuqinisekisa ukusebenza okuthembekileyo kwevalve.
4. Indawo yofakelo
Indawo yofakelo, kubandakanywa ubushushu, uxinzelelo, kunye nobukho bezinto ezitshabalalisayo, kuya kuchaphazela ukusebenza kunye nobomi bevalve.Ukukhetha izinto kunye noyilo olufanelekileyo kwindawo ethile kunokwandisa ubomi benkonzo yevalve.
Izinto ezilungileyo zofakelo oluthe nkqo yevalve yokukhangela
1. Ukusetyenziswa komxhuzulane
Kwimeko yokunyuka kwemithombo yeendaba, ubunzima bunceda i-valve ukuvala, iphucula ukusebenza kokutywinwa, kwaye ayifuni uncedo lwangaphandle.
2. Nciphisa ukunxiba
Ukusebenzisa i-gravity ye-media kunye ne-plate ye-valve ukuvala i-valve yokukhangela kunokunciphisa ukungcangcazela, ukunciphisa ukuguga, ukwandisa ubomi benkonzo yevalve, kunye nokunciphisa ukuphindaphinda kokugcinwa.
Ukungalungi kofakelo oluthe nkqoyevalve yokukhangela
1. Ukuchasana nokuhamba
Ufakelo oluthe nkqo lunokonyusa uxhathiso lokuhamba, ngakumbi kwiivalvu zokujonga ukuphakamisa okuthe nkqo, ekufuneka zixhathise kungekuphela nje ubunzima bepleyiti yevalve, kodwa kwanoxinzelelo olunikwa ngumthombo ongentla kwepleyiti yevalve.Oku kuya kukhokelela ekunciphiseni ukuhamba kunye nokunyuka kokusetyenziswa kwamandla.
2. Isiganeko sehamile samanzi
Xa i-medium igeleza phezulu, amandla e-valve yokukhangela kunye nobukhulu be-gravity kuya kwandisa uxinzelelo kumbhobho, okwenza kube lula ukwenza i-hammer phenomenon yamanzi.