Indlela yoVavanyo lweeValufa ezahlukeneyo ekuHlolweni kweValve

UvavanyoIndlelangenxaIivavu ezahlukeneyo kuHlolo lweValve

Nje,iivalvu zoshishinoakufunekiuvavanyo lwamandlangexesha lokusetyenziswa ngelixa umzimba wevalve elungisiweyo kunye nesigqubuthelo okanyeedlekayokwayeyonakeleumzimba wevalvu kunye nesigqubuthelo kuya kuqhutywa kuvavanyo lwamandla.Uxinzelelo olubekiweuvavanyo,ukubuyisela kwakhona uxinzelelouvavanyo kunye nolunye uvavanyo lwevalvu yokhuseleko luya kuhlangabezanaimfunekos kwiNcwadi yoMsebenzisi kunye neenkqubo ezifanelekileyo.TIvalve iya kuqhutyelwa uvavanyo lwamandla kunye nokutywinwa ngaphambi kokufaka.TIzivalo zoxinzelelo oluphantsi ziya kuhlolwa ngokungenamkhethe kwi-20% kodwa i-100%ukuba awufanelekanga;iivalvu zoxinzelelo oluphakathi nophezulu ziya kuhlolwa 100%.

1,UxinzeleloIndlela yoVavanyongenxaIvalve yeBhola

Uvavanyo lwamandla lweivalve yebhola yomoyaiya kuqhutywa ngoindawo enesiqingatha-evulekileyoyebhola.

① Ukutywinwauvavanyo lwedadangeivalve yebhola:yenza ivalve kwiindawo enesiqingatha-evulekileyo, yazisa uvavanyo oluphakathi ukuya kwelinye icala kwaye utywine esinye isiphelo, ujikeleze ibhola ngamaxesha amaninzi kwaye uvule isiphelo esivaliweyo sokuhlolwa xa i-valve ikwimeko esondeleyo.At kwangaxeshanye, jonga umsebenzi wokutywina ekupakisheni kunyegasket, kwayeakusayi kuvuza.Iyazisa indlela yovavanyo ukusuka kwelinye icala kwaye uphinda uvavanyo olungentla.

②Ukutywinwauvavanyo lwevalve yebhola esisigxina: jikelisa ibhola phantsi komthwalo ngamaxesha amaninzi ngaphambi kovavanyo, ivalve yebhola esisigxina ikwimeko esondeleyo ngeli xesha, kwaye yazise uvavanyo oluphakathi kwixabiso elichaziweyo ukusuka kwelinye icala.Sebenzisa igeyiji yoxinzelelo ukujonga ukusebenza kokutywinwa kokwazisa isiphelo, kwaye ukuchaneka kwegeyiji yoxinzelelo esetyenzisiweyo yi-0.5 ~ 1 inqanaba kunyeuluhluamaxesha angama-1.5 aphezulu kunoxinzelelo lovavanyo.Ifanelekile ukuba akukho zithintelo zoxinzelelongexesha elibekiweyo.Yazisa indawo yokuvavanya ukusuka kwelinye icala kwaye uphinda uvavanyo olungentla, kwaye emva koko wenze ivalve kwindawo evulekileyo, vala iziphelo zombini, ugcwalise i-medium kwi-cavity kwaye ujonge ukupakisha kunye ne-gasket phantsi koxinzelelo lovavanyo, kuya kubaakukho kuvuza.

Uvavanyo lokutywina luya kwenziwa kwindawo nganye yevalve yebhola eneendlela ezintathu.

2,UxinzeleloIndlela yoVavanyongenxa KhangelaIvalve

Uvavanyoimeko yevalve yokukhangela: ii-valve clack axisof phakamisa ivalve yokujongaiphakathiithe tyabalyindawo ethe nkqo, kunye ne-axis yetshaneli kunyei-valve clack axisof ivalve yokujonga ujingizimalunga nokuhambelana nomgca othe tye.

Ngexesha lovavanyo lwamandla, yazisa uvavanyo oluphakathi ukuya kwixabiso elichaziweyo ukusuka ekupheleni kokungena, vala esinye isiphelo kwaye ujonge umzimba wevalve kunye nesigqubuthelo, ufanelekile ukuba akukho kuvuza.

Kubauvavanyo lokutywina, yazisa uvavanyo oluphakathi ukusuka ekupheleni, khangela indawo yokutywina ekupheleni kokungena, kwaye ifanelekile ukuba akukho kuvuza ekupakisheni.kwayegasket.

3,UxinzeleloIndlela yoVavanyongenxaUkunciphisa iValve

Kuvavanyo lwamandla okunciphisa ivalve, idityaniswa emva kovavanyo lwenxalenye enye ngokubanzi kodwa inokuvavanywa emva kokuhlanganiswa ngokunjalo.Tixesha lovavanyo lwamandla:lminngenxaDN <50mm, ixesha elide kune2 minngenxaDN65~150mmkwaye inde kune3minngenxaDN>150mm. Emva kokoukuweldagqumakunye nendibano, uvavanyo lwamandla ngomoya kunye nangaphantsi kwe-1.5 amaxesha oxinzelelo oluphezulu lokunciphisa ivalve iya kwenziwa.

Eyona ndlela yokusebenza iya kusetyenziselwa uvavanyo lokutywina.If umoya okanye amanzi asetyenziselwa uvavanyo, uxinzelelo lwe-1.1 amaxesha oxinzelelo lwegama lusetyenziselwa uvavanyo.Winkukhu eqhubauvavanyo lomphunga, olona xinzelelo luphezulu luvumelekileyo lokusebenza phantsi kobushushu bokusebenza luya kusetyenziswa, kwaye umahluko phakathi koxinzelelo lokungena kunye noxinzelelo lokuphuma kufuneka ungabi ngaphantsi0.2MPa. Iindlela yovavanyo yile: emva kokulungelelanisa uxinzelelo lokungena, lawula iukulungisa isikrufuyevalve ngokuthe ngcembe ukwenza uxinzelelo lokuphuma lunovakalelo kunyengokuqhubekayoutshintsho phakathi koluhlu phakathi kobuninzi kunye nexabiso elincinci, elikhululekile ekumiseni nasekubambeni.Valaiivalve yebhlokongasemva kwevalve yomphungaemva kokulungelelanisauxinzelelo lokungena.IUxinzelelo lokuphuma luya kuba lelona xabiso liphezulu kwaye lisezantsi kwaye ixabiso lokunyuka ngaphakathi kwe-2 min yoxinzelelo lokuphuma liya kuhlangabezana neimfunekokwiThebhile 4.176-22.Okwangokuumthamo wombhobho emva kwevalve ufanelekile ukuba uyahlangabezana neemfuno ezikwiThebhile 4.18.NiniUxinzelelo lwe-outlet luyi-zero emva kokulungelelanisa uxinzelelo lokungena kwamanzi kunye ne-valve yokunciphisa umoya, vala i-valve yokunciphisa ukuqhuba uvavanyo lokutywinwa kwaye ufanelekile ukuba akukho kuvuza ngaphakathi kwe-2 min.

4,UxinzeleloIndlela yoVavanyongenxaIvalve yebhabhathane

Amandlauvavanyo lweivalve yebhabhathane yepneumaticiyafana nevalve yokumisa.Fokanye uvavanyo lokusebenza lokutywina lweivelufa butterfly, yazisa i-medium yovavanyo ukusuka kwisiphelo se-medium ephumela kwi, vula iipleyiti butterfly, vala esinye isiphelo kwaye ufake uxinzelelo kwixabiso elikhankanyiweyo.Emva kokuqinisekisa ukupakisha kunye nezinye iisayithi zokutywina azikho ukuvuza, vala ipleyiti yebhabhathane, vula esinye isiphelo kwaye ujongeukutywinayepleyiti butterfly, ifanelekile ukuba akukho kuvuza.TIvalve yebhabhathane esetyenziswa njengokulawula ukuhamba ayinakusetyenziselwa ukutywina uvavanyo lokusebenza.

5,UxinzeleloIndlela yoVavanyongenxaIvalve yePlag

Xa usenza uvavanyo lwamandla kwivalve yeplagi, yazisa okuphakathi ukusuka kwelinye icala, vala amanye amajelo,isikrufuiplagi kwindawo yokusebenza evulelekileyo ngokulandelelana kuvavanyo, kwaye umzimba wevalvu ufanelekile ukuba akukho kuvuza kufunyenwe.

Xa uqhuba uvavanyo lokutywinwa, ingokuthe ngqoiplagi iya kugcina iuxinzelelokumngxuma olingana noxinzelelo kumjelo.ROtate iplagi ukuvala indawo, khangela ukuba ukusuka kwelinye icala, uze ujikelezise iplagi180 °kwaye uphinda uvavanyo olungentla.TIvalve yeplagi eneendlela ezintathu okanye ezine iyakugcina uxinzelelo kumngxuma olingana noxinzelelo kwelinye icala letshaneli, jikelisa iplagi ukuvala indawo ngokulandelelana, yazisa uxinzelelo olusukauxandegqiba kwaye ujonge esinye isiphelo ngexesha elinye.

Ngaphambi kovavanyo, kuvumelekile ukusebenzisa umaleko omnye we-non-asidiukuthambisa obhityileyoi-oyile kumphezulu wokutywina wevalve yeplagi, kwaye ifanelekile ukuba akukho kuvuza kunye nokwandiswaithontsizifunyenwe ngexesha elithile.Ixesha lovavanyo lwevalve yeplagi linokuba lifutshane kwaye linokuba yi-1 ~ 3min ngokubanzi ngokwedayamitha yegama.TIvalve yeplagi yegesi yamalahle iya kuqhutywa uvavanyo lokutywinwa komoya ngoxinzelelo oluphindwe kabini lwe-1.25.

6,Indlela yovavanyo loxinzelelo lweIvalve yeDiphragm

Ngovavanyo lwamandla evalve ye-diaphragm, yazisa isiphakathi ukusuka nakweyiphi na isiphelo, vula ivalveukuqhwabakwaye uvale esinye isiphelo, khangela i-valve umzimba kunye nekhava emva koxinzelelo lovavanyo olunyuka kwixabiso elichaziweyo, kwaye lifanelekile ukuba akukho kuvuza.DYehlisa uxinzelelo kuxinzelelo lovavanyo lokutywinwa, vala isivalo sevalve kwaye uvule esinye isiphelo sokukhangela, kwaye ifanelekile ukuba akukho kuvuza.

7,Indlela yovavanyo loxinzelelo lweMisa uValve kunyeIValve yokuphola

Kuba uvavanyo amandla forivelufa yokuyeka kunye nevalve yokuthontsiza, ngesiqhelo beka ivalve edityanisiweyo kwisakhelo sovavanyo loxinzelelo, ivalve evulekileyo evulekileyo, isitofu esiphakathi ukuya kwixabiso elikhankanyiweyo, kwaye khangela ukuba umzimba wevalve kunye nesigqubutheloukuphungakunye nokuvuza.Inxalenye enye inokuqhutyelwa kuyoamandlauvavanyo ngokunjalo.Tuvavanyo lokutywina lolwevalve yokumisa kuphela apha.Niniuvavanyo, intonga yevalve yevalve yokumisa ikwimo ethe nkqo, vula ivalve evulekileyo, yazisa indawo ephakathi ukusuka kwelinye icala phantsi kwevalve ukuya kwixabiso elichaziweyo kwaye ujonge ukupakishwa kunye negasket.Culahlekelwe ngumqobo wevalve emva kokuba ifanelekile kwaye uvule elinye icala ukujonga ukuba ayivuzi na.If zombiniamandlauvavanyo kunye novavanyo lokutywina lwevalve oluza kuvavanywa, uvavanyo lwamandla lunokuqhutywa okokuqala, kwaye emva koko unciphise uxinzelelo kwixabiso elichaziweyo ngovavanyo lokutywina, jonga ukupakisha kunye ne-gasket, vala isivalo sevalve, kunye nesiphelo sokuphuma esivulekileyo ukujonga ukuba ukutywinwaumphezuluiyavuza.

8,Indlela yovavanyo loxinzelelo lweIvalve yeSango

Uvavanyo lwamandla lweIsangoivelufa iyafana nevalve yokumisa.TNazi iindlela ezimbini zokutywina uvavanyo lweIsangoivalve.

Vula iipleyiti yesangoukwenza uxinzelelo kwivalve inyuke ukuya kwivalve ekhankanyiweyo, vala iipleyiti yesangokwaye ngoko nangoko ukhuphe ivalve yesango, khangela ukuba iindawo zokutywina kumacala omabini epleyiti yesango zivuzisiwe, okanye ugalele ngokuthe ngqo indawo yovavanyo kwindawo yeplagi kwisigqubuthelo sevalvu ukuya kwixabiso elikhankanyiweyo, kwaye ujonge ukutywinwa kumacala omabini epleyiti yesango.Tebeyichazile indlela ebizwa ngokubauvavanyo loxinzelelo oluphakathikwaye ayilufanelanga uvavanyo lokutywina lwevalvu yesango enedayamitha esezantsi kuneDN32mm.

Enye indlela kuku: vula ipleyiti yesango ukwenza uxinzelelo lovavanyo lwevalve lunyukele kwixabiso elikhankanyiweyo, kwaye emva koko uvale ipleyiti yesango, uvule ipleyiti eyimfama kwelinye icala ukujonga ukuba umphezulu wokutywina uvuza na, kwayeumvaulandelelwano lokuphinda olu vavanyo lungentla lude lube lufanelekile.

Uvavanyo lokutywinwa lokupakisha kunye ne-gasket yeivalve yesango yomoyaiya kuqhutywa phambi kovavanyo lokutywina kwipleyiti yesango.

9,Indlela yoVavanyo loxinzelelo lweValve yoKhuseleko

Uvavanyo lwamandla evalve yokhuseleko luyafana nezinye iivalvu kwaye amanzi athatyathelwa ukuvavanywa.Xa uvavanya indawo engezantsi yomzimba wevalvu, yazisa uxinzelelo olusuka kwindawo yokungenaMna=mnagqiba, kwaye uvale umphezulu wokutywina.WIsikhukukazi sivavanya indawo engaphezulu yomzimba wevalvu kunye nesigqubuthelo sevalvu, yazisa uxinzelelo oluphuma kwindawo yokuphumaElgqiba, kwaye uvale ezinye iziphelo.It ufanelekile ukuba umzimba wevalvu kunye nesigqubuthelo asivuzi ngexesha elibekiweyo.

Indlela eqhelekileyo esetyenziselwaukutywinauvavanyo kunyeuvavanyo rhoqo uxinzeleloyi:umphunga ogcweleyoisetyenziswa njengendlela yokuvavanya ivalve yokhuseleko lomphunga;umoya usetyenziswa njengendlela yokuvavanya kwivalvu esetyenziswa kuyoammoniaokanye enye igesi;amanzi asetyenziswa njengendlela yokuvavanya kwivalvu esetyenziswa emanzini nakwezinyeengadlekiulwelo.Kwivalve yokhuseleko kwiindawo ezithile ezibalulekileyo,initrogenisetyenziswa njengendawo yovavanyo njengesiqhelo.

Uxinzelelo lwegama luthathwa njengoxinzelelo lovavanyo kuvavanyo lokutywinwa ubuncinci amaxesha amabini, kwaye lufanelekile ukuba akukho kuvuza ngexesha elichaziweyo.TNazi iindlela ezimbini zovavanyo lokuvuza: eyokuqala kukutywina iindawo zokudityaniswa kwevalve yokhuseleko, coma iphepha elicekethekileyo kwi-E1 flange ngokusebenzisaigrisi, kwaye iyavuza ukuba liphepha elicekethekileyoiqhumad okanyeufanelekileukuba iphepha elicekethekileyo alizangeiqhuma. Iindlela yesibini kukuncamathelisa ipleyiti ebhityileyo yeplastiki okanye ezinye iipleyiti kwindawo engezantsi yeflange ngokusebenzisaigrisi, tofa amanzi ukutywina ivalve clack kwaye uyijonge, kwaye ifanelekile ukuba akukhoUkugqumaemanzini.Imisela uxinzelelouvavanyo kunyeukubuyisela kwakhona uxinzelelouvavanyo lwevalve yokhuseleko luya kuqhutywa ngokungekho ngaphantsi kwamaxesha ama-3, kwaye lufanelekileukuba uyahlangabezana neemfuno.Pqeshisa ubone i-GB/T 12242-1989Iindlela zoVavanyo lokuSebenza kwiiValufa zoKhuseleko iimvavanyo zokusebenza kwivalve yokhuseleko.


Ixesha lokuposa: Dec-06-2021