Iivalvu zebhabhathane kunye neevalvu zesango ziintlobo ezimbini zeevalvu ezisetyenziswa rhoqo kwizicelo zokugcina amanzi kwimizi-mveliso nakomasipala. Zinomahluko ocacileyo kwisakhiwo, umsebenzi kunye nokusetyenziswa. Eli nqaku liza kuxoxa ngomahluko phakathi kweevalvu zebhabhathane kunye neevalvu zesango ngokweenkcukacha kwimiba yomgaqo, ukwakheka, iindleko, ukuqina, ukulawulwa kokuhamba kwamanzi, ukufakwa kunye nokugcinwa.
1. Umgaqo
Umgaqo weValve yeButterfly
Eyona nto ibalulekileyoivalvu yebhabhathaneyindlela elula yokwakha kunye noyilo oluncinci. Umgaqo wayo osebenzayo kukuba ipleyiti yebhabhathane ejikelezayo ijikeleza isiqu sevalvu njenge-axis ephakathi ukulawula ukuhamba kolwelo. Ipleyiti yevalvu ifana nendawo yokujonga, kwaye kuphela ngemvume yepleyiti yebhabhathane enokuthi idlule. Xa ipleyiti yebhabhathane ihambelana necala lokuhamba kolwelo, ivalvu ivuleke ngokupheleleyo; xa ipleyiti yebhabhathane imile nkqo kwicala lokuhamba kolwelo, ivalvu ivaliwe ngokupheleleyo. Ixesha lokuvula nokuvala kwevalvu yebhabhathane lifutshane kakhulu, kuba ifuna kuphela ama-degree angama-90 okujikeleza ukuze igqibezele umsebenzi wokuvula okanye wokuvala. Esi sisizathu sokuba ibe yivalvu ejikelezayo kunye nevalvu yokujika ikota.
Umgaqo weValve yeSango
Ipleyiti yevalvu yeivalvu yesangoinyuka isiya phezulu nasezantsi ngokuthe nkqo ukuya emzimbeni wevalvu. Xa isango liphakanyisiwe ngokupheleleyo, umngxuma wangaphakathi womzimba wevalvu uvulwa ngokupheleleyo kwaye ulwelo lunokudlula ngaphandle kokuthintelwa; xa isango liphantsi ngokupheleleyo, ulwelo luvalwe ngokupheleleyo. Uyilo lwevalvu yesango lwenza ukuba ingabi nakumelana nokuhamba kwamanzi xa ivuliwe ngokupheleleyo, ngoko ke ifanelekile kwizicelo ezifuna ukuvulwa ngokupheleleyo okanye ukuvalwa ngokupheleleyo. Kufuneka kugxininiswe apha ukuba ivalvu yesango ifanelekile ukuvulwa ngokupheleleyo nokuvalwa ngokupheleleyo! Nangona kunjalo, ivalvu yesango inesantya sokuphendula esicothayo, oko kukuthi, ixesha lokuvula nokuvala lide, kuba kuthatha ukujika okuphindaphindiweyo ukujikeleza ivili lesandla okanye igiya leempethu ukuze ivuleke kwaye ivale ngokupheleleyo.
2. Ukwakhiwa
Ukwakheka kwevalvu yebhabhathane
Njengoko kukhankanyiwe apha ngasentla, ulwakhiwo lwevalvu yebhabhathane lulula kakhulu, kuquka izinto eziphambili ezifana nomzimba wevalvu, ipleyiti yevalvu, umngxuma wevalvu, isihlalo sevalvu kunye nedrive. Njengoko kubonisiwe kumfanekiso ongezantsi.
Umzimba wevalvu:
Umzimba wevalvu yevalvu yebhabhathane ungqukuva kwaye unomjelo othe nkqo ngaphakathi. Umzimba wevalvu ungenziwa ngezinto ezahlukeneyo, ezifana nentsimbi ephosiweyo, intsimbi ethambileyo, intsimbi engatyiwayo, intsimbi yekhabhoni, ibronze yealuminiyam, njl. Kakade ke, ukhetho lwezinto luxhomekeke kwindawo yokusetyenziswa kwevalvu yebhabhathane kunye nohlobo lwesixhobo.
Ipleyiti yevalvu:
Ipleyiti yevalvu yinxalenye yokuvula nokuvala efana nediski ekhankanyiweyo apha ngasentla, efana nediski ekwimo yayo. Izinto ezikwipleyiti yevalvu zihlala zifana nezo zomzimba wevalvu, okanye ziphezulu kunezo zomzimba wevalvu, kuba ivalvu yebhabhathane idibana ngqo nesixhobo, ngokungafaniyo nevalvu yebhabhathane esembindini apho umzimba wevalvu wahlulwe ngokuthe ngqo kwisixhobo ngesitulo sevalvu. Ezinye izixhobo ezikhethekileyo kufuneka ziphucule ukumelana nokuguguleka, ukumelana nokugqwala, kunye nokumelana nobushushu obuphezulu.
Isiqu sevalvu:
Isiqu sevalvu sidibanisa ipleyiti yevalvu kunye nedrive, kwaye sinoxanduva lokudlulisa i-torque ukuze ijikeleze ipleyiti yevalvu. Isiqu sevalvu sidla ngokwenziwa ngentsimbi engagqwaliyo engu-420 okanye ezinye izinto ezinamandla aphezulu ukuqinisekisa amandla ayo aneleyo kunye nokuqina kwayo.
Isihlalo seValve:
Isihlalo sevalvu sifakwe ngaphakathi kwingxinano yomzimba wevalvu kwaye sinxibelelana nepleyiti yevalvu ukuze senze itywina ukuqinisekisa ukuba i-medium ayivuzi xa ivalvu ivaliwe. Kukho iintlobo ezimbini zokutywina: itywina elithambileyo kunye netywina eliqinileyo. Itywina elithambileyo lisebenza ngcono ekutywineni. Izinto ezisetyenziswa rhoqo ziquka irabha, i-PTFE, njl.njl., ezisetyenziswa rhoqo kwiivalvu zebhabhathane eziphakathi. Itywina eliqinileyo lifanelekile kwiindawo ezinobushushu obuphezulu kunye noxinzelelo oluphezulu. Izinto ezisetyenziswa rhoqo ziquka i-SS304+Flexible Graphite, njl.njl., ezixhaphakileyo kwiiivalvu zebhabhathane ezingaqhelekanga ezintathu.
Umchwethezi:
I-actuator isetyenziselwa ukuqhuba isiqu sevalvu ukuba sijikeleze. Iifom ezisetyenziswa rhoqo zezezandla, zombane, zomoya okanye ze-hydraulic. Ii-actuator ezenziwe ngesandla zihlala zisebenza ngeziphatho okanye iigiya, ngelixa ii-actuator zombane, zomoya kunye neze-hydraulic zinokufikelela kulawulo olukude kunye nokusebenza ngokuzenzekelayo.
Ukwakhiwa kweevalvu zesango
Ulwakhiwo lwevalvu yesango luyinkimbinkimbi. Ukongeza kwi-valve body, ipleyiti yevalvu, umngxuma wevalvu, isihlalo sevalvu kunye nedrive, kukwakho nokupakisha, isiciko sevalvu, njl.njl. (jonga umfanekiso ongezantsi)
Umzimba wevalvu:
Umzimba wevalvu yevalvu yesango udla ngokuba nombala ofana nowebhareli okanye ofana nowesi, kunye nomjelo othe tye ngaphakathi. Izinto zomzimba wevalvu ikakhulu zisinyithi esityhidiweyo, isinyithi esityhidiweyo, intsimbi engatyiwayo, ubhedu, njl. Ngokufanayo, izinto ezifanelekileyo kufuneka zikhethwe ngokwemiqathango yokusetyenziswa.
Isigqubuthelo sevalvu:
Isigqubuthelo sevalvu siqhagamshelwe emzimbeni wevalvu ukuze senze umngxuma wevalvu ovaliweyo. Ngokwesiqhelo kukho ibhokisi yokuzalisa kwisiciko sevalvu yokufaka ukupakisha nokuvala isiqu sevalvu.
Isihlalo se-valve yesango +:
Isango yinxalenye yokuvula nokuvala yevalvu yesango, idla ngokuba yi-wedge. Isango lingaba lisango elinye okanye isakhiwo sesango esiphindwe kabini. Ivalvu yesango esiyisebenzisa rhoqo lisango elinye. Izinto zesango zevalvu yesango elastiki yiGGG50 egqunywe ngerabha, kwaye isango levalvu yesango eliqinileyo lizinto zomzimba + ubhedu okanye intsimbi engagqwaliyo.
Isiqu sevalvu:
Isiqu sevalvu sidibanisa isango kunye ne-actuator, kwaye sihambisa isango phezulu nasezantsi nge-transmission enemisonto. Izinto zesiqu sevalvu ngokubanzi zizinto ezinamandla aphezulu ezifana nentsimbi engagqwaliyo okanye intsimbi yekhabhoni. Ngokwentshukumo yesiqu sevalvu, iivalvu zesango zinokwahlulwa zibe ziivalvu zesango lesiqu esinyukayo kunye neevalvu zesango lesiqu esinyukayo. Intambo yesiqu sevalvu yevalvu yesango lesiqu esinyukayo ingaphandle komzimba wevalvu, kwaye imeko evulekileyo nevaliweyo ibonakala ngokucacileyo; intambo yesiqu sevalvu yesango lesiqu esinyukayo ingaphakathi komzimba wevalvu, isakhiwo sincinci, kwaye indawo yokufaka incinci kuneyevalvu yesango lesiqu esinyukayo.
Ukupakisha:
Ukupakisha kukwibhokisi yokuzalisa yesiciko sevalvu, esetyenziselwa ukuvala umsantsa phakathi kwesiqu sevalvu kunye nesigqubuthelo sevalvu ukuthintela ukuvuza okuphakathi. Izinto zokupakisha eziqhelekileyo ziquka igrafiti, i-PTFE, i-asbestos, njl. Ukupakisha kucinezelwa yi-gland ukuqinisekisa ukusebenza kokutywina.
Umchwethezi:
• I-handwheel yeyona actuator ixhaphakileyo ngesandla, eqhuba ukudluliselwa kwe-valve stem thread ngokujikeleza i-handwheel ukuhambisa isango phezulu nasezantsi. Kwii-valve zesango ezinkulu okanye ezinoxinzelelo oluphezulu, ii-actuator zombane, zomoya okanye ze-hydraulic zihlala zisetyenziselwa ukunciphisa amandla okusebenza kunye nokukhawulezisa isantya sokuvula nokuvala. Kakade ke, le yenye into. Ukuba unomdla, nceda ujonge inqakuZingaphi iinguqu zokuvala ivalvu yebhabhathaneKuthatha ixesha elingakanani?
3. Ixabiso
Ixabiso leValve yeButterfly
Iivalvu zeebhabhathane zihlala zibiza kancinci kuneevalvu zesango. Oku kungenxa yokuba iivalvu zeebhabhathane zinobude obufutshane besakhiwo, azifuni zinto zininzi, kwaye zinenkqubo yokwenziwa elula. Ukongeza, iivalvu zeebhabhathane zikhaphukhaphu, nto leyo enciphisa iindleko zokuthutha kunye nokufakela. Inzuzo yexabiso leevalvu zeebhabhathane iyabonakala ngakumbi kwiipayipi ezinkulu.
Ixabiso leValve yeSango
Iindleko zokwenziwa kweevalvu zesango zihlala ziphezulu, ingakumbi kwiizicelo ezinkulu okanye eziphantsi koxinzelelo oluphezulu. Ulwakhiwo lweevalvu zesango luyinkimbinkimbi, kwaye ukuchaneka koomatshini beepleyiti zesango kunye nezihlalo zeevalvu kuphezulu, nto leyo efuna iinkqubo ezininzi kunye nexesha ngexesha lenkqubo yokwenziwa. Ukongeza, iivalvu zesango zinzima, nto leyo enyusa iindleko zokuthutha kunye nokufakela.
Njengoko kunokubonwa kumzobo ongentla, kwi-DN100 efanayo, ivalvu yesango inkulu kakhulu kunevalvu yebhabhathane.
4. Ukuqina
Ukuqina kweValve yeButterfly
Ukuqina kweevalvu zebhabhathane kuxhomekeke kwisihlalo sazo sevalvu kunye nezinto zomzimba wevalvu. Ngokukodwa, izinto zokutywina zeevalvu zebhabhathane ezitywiniweyo ezithambileyo zihlala zenziwe ngerabha, i-PTFE okanye ezinye izinto eziguquguqukayo, ezinokuguga okanye ziguge ngexesha lokusetyenziswa ixesha elide. Kakade ke, izinto zokutywina zeevalvu zebhabhathane ezitywiniweyo zenziwe ngezinto zokwenziwa ezisebenza kakuhle okanye izitywini zesinyithi, ngoko ke ukuqina kwazo kuphuculwe kakhulu.
Ngokubanzi, iivalvu zebhabhathane zinokuqina okuhle kwiinkqubo ezinoxinzelelo oluphantsi kunye noxinzelelo oluphakathi, kodwa ukusebenza kokutywina kunokuncipha kwiindawo ezinoxinzelelo oluphezulu kunye nobushushu obuphezulu.
Kukwabalulekile ukukhankanya ukuba iivalvu zebhabhathane zinokwahlula i-medium ngokusonga umzimba wevalvu ngesihlalo sevalvu ukuthintela umzimba wevalvu ukuba ungagqwali. Kwangaxeshanye, ipleyiti yevalvu inokugqunywa ngokupheleleyo ngerabha kwaye ifakwe i-fluorine ngokupheleleyo, nto leyo ephucula kakhulu ukuqina kwayo kwi-media egqwalisiweyo.
Ukuqina kweevalvu zesango
Uyilo lwesitywino sesihlalo esithambileyo seevalvu zesango lujongene nengxaki efanayo neevalvu zebhabhathane, oko kukuthi, ukuguguleka nokuguga ngexesha lokusetyenziswa. Nangona kunjalo, iivalvu zesango ezivalwe ngokuqinileyo zisebenza kakuhle kwiindawo ezinoxinzelelo oluphezulu kunye nobushushu obuphezulu. Ngenxa yokuba umphezulu wokutywina wevalvu yesango ukusuka kwisinyithi ukuya kwisinyithi unokumelana nokuguguleka okuphezulu kunye nokumelana nokugqwala, ubomi bayo benkonzo buhlala bude.
Nangona kunjalo, isango levalvu yesango linamathela lula kukungcola okukwindawo ephakathi, okunokuchaphazela nokuqina kwalo.
Ukongeza, inkangeleko kunye nolwakhiwo lwayo zimisela ukuba kunzima ukwenza i-lining epheleleyo, ngoko ke kwi-medium efanayo erhabaxa, nokuba yenziwe ngentsimbi yonke okanye i-lining epheleleyo, ixabiso layo liphezulu kakhulu kunele-valve yesango.
5. Ulawulo lokuhamba kwamanzi
Ulawulo lokuhamba kwevalvu yebhabhathane
Ivalvu yebhabhathane enemilo emithathu ingayilungisa indlela ephuma ngayo kwiindawo ezahlukeneyo, kodwa ijika layo elibonisa indlela ephuma ngayo ayilulo ulayini, ingakumbi xa ivalvu ikufutshane nokuvuleka ngokupheleleyo, indlela ephuma ngayo itshintsha kakhulu. Ke ngoko, ivalvu yebhabhathane ifanelekile kuphela kwiindawo ezineemfuno eziphantsi zokuchaneka kokulungiswa, kungenjalo, ivalvu yebhola ingakhethwa.
Ulawulo lokuhamba kwevalvu yesango
Ivalvu yesango yenzelwe ukuba ifaneleke ngakumbi kwimisebenzi yokuvula ngokupheleleyo okanye yokuvala ngokupheleleyo, kodwa kungekhona ukulawula ukuhamba kwamanzi. Kwimeko evulekileyo kancinci, isango liya kubangela ukuxinana kunye nokungcangcazela kolwelo, nto leyo elula ukonakalisa isihlalo sevalvu kunye nesango.
6. Ufakelo
Ukufakelwa kwevalvu yebhabhathane
Ukufakelwa kwevalvu yebhabhathane kulula kakhulu. Ilula ngobunzima, ngoko ayifuni nkxaso ingako ngexesha lokufakwa; inesakhiwo esincinci, ngoko ke ifanelekile ngakumbi kwiimeko apho indawo incinci khona.
Ivalvu yebhabhathane ingafakwa kwiipayipi kuyo nayiphi na indlela (ethe tye okanye ethe nkqo), kwaye akukho mfuneko ingqongqo yendlela yokuhamba kombhobho. Kufuneka kuqatshelwe ukuba xa kusetyenziswa uxinzelelo oluphezulu okanye ubukhulu obukhulu, ipleyiti yebhabhathane kufuneka ivuleke ngokupheleleyo ngexesha lokufakwa ukuze kuthintelwe ukonakala kwesitywino.
Ukufakelwa kweevalvu zesango
Ukufakelwa kweevalvu zesango kunzima ngakumbi, ingakumbi iivalvu zesango ezinkulu kunye nezivaliweyo. Ngenxa yobunzima obukhulu beevalvu zesango, inkxaso eyongezelelweyo kunye namanyathelo okulungisa ayafuneka ngexesha lokufakelwa ukuqinisekisa uzinzo lwevalvu kunye nokhuseleko lomfaki.
Iivalvu zesango zihlala zifakelwa kwimibhobho ethe tye, kwaye icala lokuhamba kolwelo kufuneka liqwalaselwe ukuqinisekisa ukufakwa ngokuchanekileyo. Ukongeza, ukubetheka kokuvula nokuvala kweevalvu zesango lide, ngakumbi kwiivalvu zesango eziphakamayo, kwaye kufuneka kugcinwe indawo eyaneleyo yokusebenzisa ivili lesandla.
7. Ukugcinwa nokugcinwa
Ukugcinwa kweevalvu zeebhabhathane
Iivalvu zebhabhathane zineenxalenye ezimbalwa kwaye kulula ukuziqhaqha nokuzihlanganisa, ngoko ke kulula ukuzigcina. Kulondolozo lwemihla ngemihla, ukuguga nokuguguleka kwepleyiti yevalvu kunye nesihlalo sevalvu kujongwa kakhulu. Ukuba iringi yokutywina ifunyenwe igugulekile kakhulu, kufuneka itshintshwe ngexesha. Ke ngoko, sicebisa ukuba abathengi bathenge iivalvu zebhabhathane ezithambekileyo ezinokutshintshwa. Ukuba umphezulu othe tyaba kunye nokugqitywa kwepleyiti yevalvu kunzima ukufikelela kwisiphumo esihle sokutywina, nayo kufuneka itshintshwe.
Ukongeza, kukho ukuthambisa kwesiqu sevalvu. Ukuthambisa okulungileyo kunceda ukuguquguquka nokuqina kokusebenza kwevalvu yebhabhathane.
Ukugcinwa kweevalvu zesango
Iivalvu zesango zineenxalenye ezininzi kwaye kunzima ukuziqhaqha nokuzidibanisa, ingakumbi kwiinkqubo ezinkulu zemibhobho, apho umthwalo wokugcinwa mkhulu khona. Ngexesha lokugcinwa, kufuneka kuqwalaselwe ngokukodwa ukuba ingaba isango liphakanyisiwe kwaye lehliswa kakuhle na nokuba kukho izinto zangaphandle emngxunyeni womzimba wevalvu.
Ukuba umphezulu woqhagamshelwano lwesihlalo sevalvu kunye nesango likrwelekile okanye ligugile, kufuneka lipholishwe okanye litshintshwe. Kakade ke, ukuthambisa isiqu sevalvu nako kuyimfuneko.
Ingqwalasela engaphezulu kufuneka inikwe ekugcinweni kwephakheji kunevalvu yebhabhathane. Ukupakisha kwevalvu yesango kusetyenziselwa ukuvala umsantsa phakathi kwesiqu sevalvu kunye nomzimba wevalvu ukuthintela ukuba i-medium ingaphumi. Ukwaluphala kunye nokuguguleka kwephakheji ziingxaki eziqhelekileyo zeevalvu zesango. Ngexesha lokugcinwa, kuyimfuneko ukujonga rhoqo ukuqina kwephakheji kwaye uyilungise okanye uyitshintshe ukuba kuyimfuneko.
8. Isiphelo
Ngamafutshane, iivalvu zebhabhathane kunye neevalvu zesango zinezibonelelo kunye neengxaki zazo ngokubhekiselele ekusebenzeni, iindleko, ukuqina, ulawulo lokuhamba kunye nokufakelwa:
1. Umgaqo: Iivalvu zebhabhathane zinesantya sokuvula nokuvala esikhawulezayo kwaye zifanelekile kwizihlandlo zokuvula nokuvala ezikhawulezayo; iivalvu zesango zinexesha elide lokuvula nokuvala.
2. Ulwakhiwo: Iivalvu zebhabhathane zinesakhiwo esilula kwaye iivalvu zesango zinesakhiwo esintsonkothileyo.
3. Ixabiso: Iivalvu zebhabhathane zinexabiso eliphantsi, ingakumbi kwiindlela zokusetyenziswa ezinobukhulu obukhulu; iivalvu zesango zinexabiso eliphezulu, ngakumbi kwiimfuno zoxinzelelo oluphezulu okanye zezinto ezikhethekileyo.
4. Ukuqina: Iivalvu zebhabhathane zihlala ixesha elide kwiinkqubo ezinoxinzelelo oluphantsi kunye noxinzelelo oluphakathi; iivalvu zesango zisebenza kakuhle kwiindawo ezinoxinzelelo oluphezulu kunye nobushushu obuphezulu, kodwa ukuvulwa nokuvalwa rhoqo kunokuchaphazela ubomi bazo.
5. Ulawulo lokuhamba kwamanzi: Iivalvu zebhabhathane zilungele ulawulo lokuhamba kwamanzi olurhabaxa; iivalvu zesango zilungele ngakumbi ukusebenza okuvulekileyo ngokupheleleyo okanye okuvaliweyo ngokupheleleyo.
6. Ukufakelwa: Iivalvu zebhabhathane kulula ukuzifaka kwaye ziyasebenza kwimibhobho ethe tye nethe nkqo; iivalvu zesango zinzima ukuzifaka kwaye zifanelekile ukufakwa kwimibhobho ethe tye.
7. Ukugcinwa: Ukugcinwa kweevalvu zebhabhathane kugxile ekugugeni nasekugugeni kwepleyiti yevalvu kunye nesihlalo sevalvu, kunye nokuthambisa kwesiqu sevalvu. Ukongeza kwezi, ivalvu yesango ikwafuna ukugcina ukupakisha.
Kwizicelo ezisebenzayo, ukukhethwa kweevalvu zebhabhathane okanye iivalvu zesango kufuneka kuqwalaselwe ngokupheleleyo ngokweemeko ezithile zokusebenza kunye neemfuno ukuqinisekisa ukusebenza kakuhle kunye noqoqosho.