Iivalve zebhabhathane kunye neevalvu zesango ziintlobo ezimbini zeevalvu eziqhele ukusetyenziswa kwimizi-mveliso kunye nezicelo zokonga amanzi zikamasipala.Zinokwahlukana okucacileyo kwisakhiwo, umsebenzi kunye nokusetyenziswa.Eli nqaku liza kuxubusha umahluko phakathi kweevalve zebhabhathane kunye neevalve zesango ngokweenkcukacha ukusuka kwimiba yomgaqo, ukubunjwa, iindleko, ukuqina, ukulawulwa kokuhamba, ukufakwa kunye nokugcinwa.
1. Umgaqo
Umgaqo weButterfly Valve
Olona phawu lukhulu lweivelufa butterflysisakhiwo sayo esilula kunye noyilo oluhlangeneyo.Umgaqo wayo wokusebenza kukuba ipleyiti yebhabhathane ejikelezayo ijikeleza isiqu sevalve njenge-axis esembindini yokulawula ukuhamba kolwelo.Ipleyiti yevalve ifana nendawo yokukhangela, kwaye kuphela ngemvume yepleyiti yebhabhathane inokudlula.Xa ipleyiti yebhabhathane ihambelana necala lokuhamba kwamanzi, ivalve ivuleke ngokupheleleyo;xa ipleyiti butterfly perpendicular ukuya kwicala flow fluid, valve ivalwe ngokupheleleyo.Ixesha lokuvula kunye nokuvala i-valve ye-butterfly lifutshane kakhulu, kuba idinga kuphela i-90 degrees yokujikeleza ukugqiba ukuvulwa ngokupheleleyo okanye ukuvala umsebenzi.Esi sizathu sokuba kutheni i-valve ye-rotary kunye ne-quarter-turn valve.
Umgaqo weSango iValve
Ipleyiti yevalve yeivalve yesangoihla inyuka isiya kumzimba wevalvu.Xa isango liphakanyiswe ngokupheleleyo, umgodi wangaphakathi womzimba wevalve uvulwa ngokupheleleyo kwaye ulwelo lunokudlula ngaphandle kokuphazanyiswa;xa isango lithotywe ngokupheleleyo, ulwelo luvalwe ngokupheleleyo.Uyilo lwevalve yesango lenza ukuba phantse akukho kumelana nokuhamba xa ivulwe ngokupheleleyo, ngoko ifanelekile kwizicelo ezifuna ukuvulwa ngokupheleleyo okanye ukuvala ngokupheleleyo.Kufuneka kugxininiswe apha ukuba i-valve yesango ifanelekile ukuvula ngokupheleleyo kunye nokuvalwa ngokupheleleyo!Nangona kunjalo, i-valve yesango inesantya sokuphendula esicothayo, oko kukuthi, ixesha lokuvula kunye nokuvala lide, kuba kuthatha amaxesha amaninzi ukujikeleza i-handwheel okanye i-worm gear ukuze uvule ngokupheleleyo kwaye uvale.
2. Ukuqulunqwa
Ukuqulunqwa kwevalve yebhabhathane
Njengoko kukhankanyiwe ngasentla, ukwakheka kwevalve yebhabhathane kulula, kubandakanywa amacandelo aphambili afana nomzimba wevalvu, ipleyiti yevalvu, ivalve shaft, isitulo sevalve kunye nokuqhuba.Njengoko kubonisiwe kulo mfanekiso ungezantsi.
Umzimba wevalvu:
Umzimba wevalve yevalve yebhabhathane i-cylindrical kwaye inetshaneli ethe nkqo ngaphakathi.Umzimba wevalvu unokwenziwa ngezinto ezahlukeneyo, ezifana nentsimbi etyhidiweyo, intsimbi yentsimbi, intsimbi engatyiwa, intsimbi yekhabhoni, ubhedu lwe-aluminiyam, njl. Kakade ke, ukukhethwa kwezinto kuxhomekeke kwimeko yokusetyenziswa kwevalve yebhabhathane kunye nohlobo phakathi.
Ipleyiti yevalvu:
Ipleyiti yevalve yile nxalenye ikhankanywe ngasentla emile okwediskhi yokuvula nokuvala, efana nediski ekwimo.Izinto zeplati yevalve zihlala zifana naleyo yomzimba wevalve, okanye iphezulu kuneyo yevalve yomzimba, kuba ivalve yebhabhathane inxibelelana ngokuthe ngqo nendawo, ngokungafaniyo ne-centerline butterfly valve apho umzimba wevalve wahlulwe ngokuthe ngqo. ukusuka kwindawo ephakathi ngesitulo sevalvu.Eminye imithombo yeendaba ekhethekileyo kufuneka iphucule ukumelana nokunxiba, ukuxhathisa ukubola, kunye nokumelana nobushushu obuphezulu.
Isiqu sevalvu:
Isiqu sevalve sidibanisa ipleyiti yevalve kunye nedrive, kwaye inoxanduva lokuhambisa itorque ukujikelezisa ipleyiti yevalvu.Isiqu se-valve ngokuqhelekileyo senziwe ngensimbi engenasici 420 okanye ezinye izinto eziphezulu eziphezulu zokuqinisekisa amandla awo aneleyo kunye nokuqina.
Isihlalo seValve:
Isitulo sevalve sifakwe kumqolo ongaphakathi womzimba wevalvu kwaye sinxibelelana nepleyiti yevalve ukwenza itywina ukuqinisekisa ukuba okuphakathi akuvuzi xa ivalve ivaliwe.Kukho iindidi ezimbini zokutywina: itywina elithambileyo kunye netywina eliqinileyo.Itywina elithambileyo linomsebenzi ongcono wokutywina.Izinto ezisetyenziswa ngokuqhelekileyo ziquka irabha, i-PTFE, njl., ezisetyenziswa ngokuqhelekileyo kwi-centerline butterfly valves.Izitywina ezinzima zifanelekile ukushisa okuphezulu kunye neendawo zoxinzelelo oluphezulu.Izinto ezisetyenziswa ngokuqhelekileyo ziquka i-SS304 + iFlexible Graphite, njl., eziqhelekileyo kwiiivalve zebhabhathane eziphindwe kathathu.
I-Actuator:
I-actuator isetyenziselwa ukuqhuba i-valve stem ukuze ijikeleze.Iifom ezisetyenziswa ngokuqhelekileyo ziyi-manual, umbane, i-pneumatic okanye i-hydraulic.I-actuator ye-manual idla ngokusetyenziswa ngokubamba okanye i-gear, ngelixa i-actuator yombane, i-pneumatic kunye ne-hydraulic actuators inokufezekisa ulawulo olukude kunye nokusebenza okuzenzekelayo.
Ukuqulunqwa kweevalvu zesango
Ubume bevalve yesango bunzima.Ukongeza kumzimba wevalve, ipleyiti yevalvu, ivalve shaft, isitulo sevalve kunye nedrive, kukwakho ukupakishwa, isigqubuthelo sevalvu, njl.njl. (jonga umfanekiso ongezantsi)
Umzimba wevalvu:
Umzimba wevalvu wevalve yesango udla ngokumilisela umphanda okanye umise okwe wedge, kunye nomjelo othe ngqo ngaphakathi.Isixhobo somzimba we-valve ubukhulu becala yintsimbi, intsimbi, isinyithi esingenasici, ubhedu, njl njl. Ngokufanayo, izinto ezifanelekileyo kufuneka zikhethwe ngokwemiqathango yokusetyenziswa.
Isigqubuthelo sevalvu:
Isigqubuthelo sevalvu siqhagamshelwe kumzimba wevalve ukwenza umngxuma wevalve ovaliweyo.Kudla ngokubakho ibhokisi yokupakisha kwisigqubuthelo sevalvu yokufakela ukupakisha nokutywina isiqu sevalve.
Isango + isitulo sevalvu:
Isango yindawo yokuvula kunye nokuvala ivalve yesango, ngokuqhelekileyo kwimilo ye-wedge.Isango linokuba lisango elilodwa okanye isakhiwo sesango eliphindwe kabini.Ivalve yesango esiqhele ukulisebenzisa lisango elinye.Izinto zesango zevalve yesango elilastiki yi-GGG50 egqunywe ngerabha, kwaye isango levalve yesango eliqinileyo lisixhobo somzimba + ubhedu okanye intsimbi engenasici.
Isiqu sevalvu:
Isiqu sevalve sidibanisa isango kunye ne-actuator, kwaye ihambisa isango liyinyusa liyihla ngothumelo olunemisonto.Izinto ze-valve stem ngokuqhelekileyo zizixhobo zokomelela okuphezulu njengensimbi engenasici okanye i-carbon steel.Ngokwentshukumo yesikhondo sevalve, iivalvu zesango zinokwahlulwa zibe ziivalve zesango ezinyukayo kunye neevalvu zesango ezinyukayo.I-valve stem thread yevalve yesango ye-stem enyukayo ifumaneka ngaphandle komzimba wevalve, kwaye imeko evulekileyo nevaliweyo ibonakala ngokucacileyo;umsonto wesikhondo sevalve yevalve yesango ye-stem enganyukiyo ibekwe ngaphakathi kumzimba wevalve, ulwakhiwo luxinene ngokwentelekiso, kwaye isithuba sofakelo sincinci kuneso sevalve yesango enyukayo.
Ukupakisha:
Ukupakishwa kufakwe kwibhokisi yokuhlohla yesivalo sevalve, esetyenziselwa ukuvala isithuba phakathi kwesikhondo sevalve kunye nesigqubuthelo sevalvu ukuthintela ukuvuza okuphakathi.Izinto zokupakisha eziqhelekileyo ziquka igraphite, i-PTFE, i-asbestos, njl. Ukupakisha kuxinzelelwe yi-gland ukuqinisekisa ukusebenza kokutywinwa.
I-Actuator:
• Ivili lesandla lelona lixhaphakileyo kwi-actuator ye-manuwali, eqhuba i-valve stem thread transmission ngokujikelezisa ivili lesandla ukuhambisa isango linyuke lisezantsi.Kwi-diameter enkulu okanye i-high-pressure gate valves, i-electric, i-pneumatic okanye i-hydraulic actuators isoloko isetyenziselwa ukunciphisa amandla okusebenza kunye nokukhawuleza ukuvula nokuvala isivinini.Kakade ke, lo ngomnye umxholo.Ukuba unomdla, nceda ujonge inqakuBangaphi abaJikayo ukuvala iValve yebhabhathane?Ithatha Ixesha Elingakanani?
3. Iindleko
Iindleko zeValve yeButterfly
Iivalvu zebhabhathane zidla ngokungabizi kakhulu kuneevalvu zesango.Oku kungenxa yokuba iivalvu zebhabhathane zinobude obufutshane besakhiwo, zifuna imathiriyeli encinci, kwaye zinenkqubo yokuvelisa elula.Ukongezelela, iivalve zebhabhathane zikhaphukhaphu, nto leyo ekwanciphisa iindleko zothutho kunye nokufakwa.Inzuzo yeendleko zeevalvu zebhabhathane ibonakala ngokukodwa kwimibhobho yobubanzi obukhulu.
Iindleko zeValve yeSango
Iindleko zokwenziwa kweevalvu zesango zihlala ziphezulu, ngakumbi kwi-diameter enkulu okanye izicelo zoxinzelelo oluphezulu.Ukwakhiwa kweevalve zesango kuyinkimbinkimbi, kwaye ukuchaneka komatshini kwamacwecwe esango kunye nezihlalo zevalve ziphezulu, ezifuna iinkqubo ezininzi kunye nexesha ngexesha lokuvelisa.Ukongezelela, iivalve zesango zinzima, okwandisa iindleko zokuthutha kunye nokufakwa.
Njengoko kunokubonwa kulo mzobo ungentla, kwi-DN100 efanayo, ivalve yesango inkulu kakhulu kunevalve yebhabhathane.
4. Ukuqina
Ukuqina kweValve yeButterfly
Ukomelela kweevalvu zebhabhathane kuxhomekeke kwisitulo sevalvu yalo kunye nezixhobo zomzimba zevalvu.Ngokukodwa, izinto zokutywinwa kweevalve zebhabhathane ezithambileyo zihlala zenziwe ngerubha, i-PTFE okanye ezinye izinto eziguquguqukayo, ezinokunxiba okanye ubudala ngexesha lokusetyenziswa kwexesha elide.Ngokuqinisekileyo, izinto zokutywinwa kwee-valve ze-butterfly ezivaliweyo zenziwe ngezixhobo eziphezulu ze-synthetic okanye izitywina zetsimbi, ngoko ke ukuqina kuye kwaphuculwa kakhulu.
Ngokubanzi, iivalve zebhabhathane zinokuqina okuhle kwiinkqubo zoxinzelelo oluphantsi kunye noxinzelelo oluphakathi, kodwa ukusebenza kokutywinwa kungancitshiswa kwiindawo ezinoxinzelelo oluphezulu kunye nobushushu obuphezulu.
Kukwafanelekile ukukhankanya ukuba iivalve zebhabhathane ziyakwazi ukwahlula okuphakathi ngokusonga umzimba wevalvu ngesitulo sevalvu ukuthintela ukuba umzimba wevalve ungagqwali.Kwangaxeshanye, ipleyiti yevalve inokufakwa ngokupheleleyo ngerabha kwaye ifakwe ngokupheleleyo ngefluorine, ephucula kakhulu ukuqina kwayo kwimidiya eyonakalisayo.
Ukuqina kweevalvu zesango
Uyilo lwesihlalo esilastiki sokutywinwa kweevalvu zesango lujongene nengxaki efanayo neevalvu zebhabhathane, oko kukuthi, ukuguga nokuguga ngexesha lokusetyenziswa.Nangona kunjalo, iivalve zesango ezivaliweyo zisebenza kakuhle kwiindawo ezinoxinzelelo oluphezulu kunye nobushushu obuphezulu.Ngenxa yokuba indawo yokutywina yentsimbi ukuya kwintsimbi yevalve yesango inokumelana nokunxiba okuphezulu kunye nokumelana nokubola, ubomi bayo benkonzo buhlala bude.
Nangona kunjalo, isango levalve yesango libambeke ngokulula ngokungcola okuphakathi, okunokuthi kuchaphazele ukuqina kwayo.
Ukongezelela, ukubonakala kwayo kunye nesakhiwo sinquma ukuba kunzima ukwenza i-lining epheleleyo, ngoko ke kwi-corrosive medium efanayo, nokuba yenziwe yonke isinyithi okanye i-lining epheleleyo, ixabiso layo liphezulu kakhulu kunelo valve yesango.
5. Ulawulo lokuhamba
Ukulawulwa kokuhamba kwevalve yebhabhathane
Ivalve yebhabhathane ene-eccentric emithathu inokulungelelanisa ukuhamba kwiindawo ezahlukeneyo zokuvuleka, kodwa i-curve yayo ye-flow curve ayihambelani, ngakumbi xa ivalve isondele ekuvulekeni ngokupheleleyo, ukuhamba kutshintsha kakhulu.Ngoko ke, i-valve ye-butterfly ifanelekile kuphela kwimiboniso eneemfuno zokuchaneka okuncinci, ngaphandle koko, i-valve yebhola inokukhethwa.
Ukulawulwa kokuhamba kwevalve yesango
Ivalve yesango yenzelwe ukuba ifaneleke ngakumbi ukuvula ngokupheleleyo okanye ukuvala ngokupheleleyo, kodwa kungekhona ukulawula ukuhamba.Kwimeko evulekileyo ngokuyinxenye, isango liya kubangela isiphithiphithi kunye nokungcangcazela kwe-fluid, ekulula ukonakalisa isihlalo sevalve kunye nesango.
6. Ufakelo
Ukufakwa kwevalve yebhabhathane
Ukufakwa kwevalve yebhabhathane kulula.Ilula ngobunzima, ngoko ayifuni inkxaso eninzi ngexesha lofakelo;inobume obubambeneyo, ngoko ke ifaneleke ngokukodwa kwizihlandlo ezinendawo encinci.
Ivalve yebhabhathane inokufakwa kwimibhobho kulo naliphi na icala (elithe tyaba okanye elithe nkqo), kwaye akukho mfuneko ingqongqo yolwalathiso lokuhamba kumbhobho.Kufuneka kuqatshelwe ukuba kwizicelo zoxinzelelo oluphezulu okanye ububanzi obukhulu, i-butterfly plate kufuneka ibe kwindawo evulekile ngokupheleleyo ngexesha lokufakela ukuphepha umonakalo kwisitywina.
Ukufakwa kweevalvu zesango
Ukufakwa kweevalve zesango kunzima ngakumbi, ngakumbi i-diameter enkulu kunye ne-hard-sealed gate valves.Ngenxa yobunzima obuninzi beevalve zesango, inkxaso eyongezelelweyo kunye neendlela zokulungisa ziyafuneka ngexesha lofakelo ukuqinisekisa ukuzinza kwevalve kunye nokhuseleko lomfaki.
Iivalve zesango zivame ukufakwa kwimibhobho ethe tye, kwaye indlela yokuhamba kwamanzi kufuneka ithathelwe ingqalelo ukuze kuqinisekiswe ukufakela okuchanekileyo.Ukongezelela, i-stroke yokuvula kunye nokuvala i-valve yesango ide, ngakumbi kwii-valve zesango ezikhulayo, kwaye indawo eyaneleyo kufuneka igcinwe ukuze isebenze i-handwheel.
7. Ukugcinwa kunye nokugcinwa
Ukugcinwa kweevalve zebhabhathane
Iivalve zebhabhathane zineenxalenye ezimbalwa kwaye kulula ukuziqhawula kunye nokudibanisa, ngoko kulula ukuzigcina.Kulondolozo lwemihla ngemihla, ukuguga kunye nokuguga kwepleyiti yevalvu kunye nesitulo sevalve kuhlolwa ikakhulu.Ukuba umsesane wokutywina ufunyenwe unxitywe kakhulu, kufuneka utshintshwe ngexesha.Ke ngoko, sicebisa ukuba abathengi bathenge iivalve zebhabhathane ezithambileyo ezibuyiselweyo.Ukuba umphezulu we-flatness kunye nokugqiba kwepleyiti yevalve kunzima ukufikelela kwisiphumo esihle sokutywinwa, kufuneka kwakhona kutshintshwe.
Ukongeza, kukho i-lubrication ye-valve stem.Ukuthambisa okulungileyo kunceda ukuguquguquka kunye nokuqina komsebenzi wevalve yebhabhathane.
Ukugcinwa kweevalvu zesango
Iivalve zesango zineenxalenye ezininzi kwaye kunzima ukuzikhupha kunye nokudibanisa, ngokukodwa kwiinkqubo ezinkulu zepayipi, apho umsebenzi wokulondoloza mkhulu.Ngethuba lokugcinwa, ingqwalasela ekhethekileyo kufuneka ihlawulwe ukuba ingaba isango liphakanyiswe kwaye lithotywe kakuhle kwaye ingaba kukho izinto zangaphandle kwi-groove ye-valve body.
Ukuba indawo yokudibanisa yesihlalo sevalve kunye nesango likrwelwe okanye ligugile, kufuneka licocwe okanye litshintshwe.Kakade ke, i-lubrication ye-valve stem nayo iyimfuneko.
Ingqwalasela eninzi kufuneka ihlawulwe ekugcinweni kokupakisha kunevalve yebhabhathane.Ukupakishwa kwevalve yesango kusetyenziswa ukuvala isithuba phakathi kwesikhondo sevalve kunye nomzimba wevalvu ukuthintela okuphakathi ekuvuzeni ngaphandle.Ukuguga kunye nokugqoka ukupakisha ziingxaki eziqhelekileyo zeevalve zesango.Ngexesha lokugcinwa, kuyimfuneko ukujonga rhoqo ukuqina kokupakisha kwaye ulungelelanise okanye ubeke indawo xa kuyimfuneko.
8. Isiphelo
Isishwankathelo, iivalve zebhabhathane kunye neevalvu zesango zineenzuzo zazo kunye nezingeloncedo ngokwemigaqo yokusebenza, iindleko, ukuqina, ukulawulwa kokuhamba kunye nokufakwa:
1. Umgaqo-siseko: Iivalve zebhabhathane zinezantya zokuvula nokuvala ngokukhawuleza kwaye zikulungele ukuvulwa nokuvala okukhawulezayo;iivalve zesango zinexesha elide lokuvula nokuvala.
2. Ukubunjwa: Iivalve zebhabhathane zinesakhiwo esilula kwaye iivalve zesango zinesakhiwo esinzima.
3. Iindleko: Iivalvu zebhabhathane zinexabiso eliphantsi, ingakumbi xa kusenziwa izicelo ezinobubanzi obukhulu;iivalve zesango zineendleko eziphezulu, ngakumbi kuxinzelelo oluphezulu okanye iimfuno ezikhethekileyo zezinto.
4. Ukuqina: Iivalvu zebhabhathane zinokuqina okungcono kwiinkqubo zoxinzelelo oluphantsi kunye noxinzelelo oluphakathi;iivalve zesango zisebenza kakuhle kwiindawo ezinoxinzelelo oluphezulu kunye nobushushu obuphezulu, kodwa ukuvulwa rhoqo nokuvala kunokuchaphazela ubomi babo.
5. Ulawulo lokuqukuqela: Izivalo zebhabhathane zilungele ulawulo lokuqukuqela okurhabaxa;iivalve zesango zifaneleke ngakumbi kwimisebenzi evulekileyo okanye evaliweyo ngokupheleleyo.
6. Ufakelo: Iivalvu zebhabhathane kulula ukuzifaka kwaye ziyasebenza kwimibhobho yomibini ethe tyaba kunye nethe nkqo;iivalve zesango zintsonkothile ukufakela kwaye zifanelekile ukufakelwa kwemibhobho ethe tye.
7. Ugcino: Ukugcinwa kweevalvu zebhabhathane kugxininisa ekugugekeni nasekugugeni kwepleyiti yevalvu kunye nesitulo sevalvu, kunye nokuthambisa isikhondo sevalve.Ukongeza kwezi, i-valve yesango nayo ifuna ukugcina ukupakisha.
Kwizicelo eziphathekayo, ukukhethwa kweevalve zebhabhathane okanye iivalve zesango kufuneka ziqwalaselwe ngokubanzi ngokwemiqathango ethile yokusebenza kunye neemfuno zokuqinisekisa ukusebenza kakuhle kunye noqoqosho.