Ngokuqhelekileyo, uvavanyo lwamandla alwenziwa xa i-valve ye-industrial isetyenziswa, kodwa uvavanyo lwamandla kufuneka lwenziwe emva kokuba umzimba we-valve kunye ne-valve cover ilungiswe okanye i-corrored.Kwi-valve yokukhusela, ukunyanzeliswa kwayo rhoqo kunye nokubuyisela uxinzelelo kunye nezinye iimvavanyo kufuneka zihambelane nemiyalelo kunye nemimiselo efanelekileyo.Uvavanyo lwamandla evalvu kunye novavanyo lokutywinwa kwevalvu kufuneka lwenziwe kwibhentshi yovavanyo lwevalve hydraulic phambi kofakelo lwevalvu.Ukukhangela indawo ye-valve yoxinzelelo oluphantsi kwe-20%, ukuba ukufaneleka kufuneka kuhlolwe i-100%;iivalvu zoxinzelelo oluphakathi kunye nophezulu kufuneka zihlolwe 100%.Imithombo yeendaba edla ngokusetyenziswa kuvavanyo loxinzelelo lwevalvu ngamanzi, i-oyile, umoya, umphunga, initrogen, njl.
1. Indlela yokuvavanya uxinzelelo lwevalve yeglowubhu kunye nevalve ye-throttle
Kuvavanyo lwamandla kaivalve yeglowubhukunye nevalve ye-throttle, ivalve edibeneyo idla ngokubekwa kwisakhelo sovavanyo loxinzelelo, i-disc yevalve ivuliwe, i-medium itofwe kwixabiso elichaziweyo, kwaye ukhangele ukuba umzimba wevalve kunye ne-valve cover ukubila kunye nokuvuza.Uvavanyo lwamandla lunokuthi luqhutywe kwisiqwenga esinye.Uvavanyo lokutywinwa kuphelaivalve yeglowubhu.Ngexesha lovavanyo, isiqu seivalve yeglowubhuikwimeko ethe nkqo, i-disc ivuliwe, kwaye i-medium ingeniswa ukusuka ezantsi kwidiski ukuya kwixabiso elichaziweyo, kwaye ukupakishwa kunye ne-gasket zihlolwe.Emva kokuba ufanelekile, vala i-valve disc kwaye uvule esinye isiphelo ukujonga ukuvuza.Ukuba zombini amandla evalve kunye novavanyo lokutywinwa kufuneka lwenziwe, unokwenza uvavanyo lwamandla kuqala, kwaye emva koko uhla ukuya kuvavanyo lokutywina ixabiso elichaziweyo, khangela ukupakisha. kunye ne-gasket;emva koko uvale i-disc kwaye uvule i-outlet ukujonga ukuba indawo yokutywina iyavuza.Ukuba amandla e-valve kunye novavanyo lokuqina kufuneka lwenziwe, unokwenza uvavanyo lwamandla kuqala, kwaye emva koko ucinezele ixabiso lovavanyo lokuqina, khangela ukupakisha kunye i-gasketEmva koko uvale i-disc, vula isiphelo sokuphuma ukuze ukhangele ukuba ukuvuza komphezulu wokutywina.
2. Indlela yokuvavanya uxinzelelo lwevalve yesango
Uvavanyo lwamandla lweivalve yesangoiyafana nale yeivalve yeglowubhu.Kukho iindlela ezimbini zokuvavanya ukuqina kweiivalve zesango.
(1)Isango liyavuleka, ukwenzela ukuba uxinzelelo ngaphakathi kwevalve lunyukele kwixabiso elichaziweyo;Emva koko uvale isango, ngokukhawuleza ukhupheivalve yesango, khangela ukuba kukho ukuvuza kwitywina kumacala omabini esango okanye ngokufaka ngokuthe ngqo i-test medium kwiplagi kwi-valve cover kwixabiso elichaziweyo, khangela itywina kumacala omabini esango.Le ndlela ingentla ibizwa ngokuba luvavanyo loxinzelelo oluphakathi.Le ndlela ayifanelekanga uvavanyo lwetywina lweiivalve zesangongedayamitha ye-DN32mm ngezantsi.
(2) Enye indlela kukuvula isango, ukwenzela ukuba uxinzelelo lovavanyo lwevalve kwixabiso elichaziweyo;Emva koko uvale isango, vula isiphelo esinye sepleyiti eyimfama, khangela ukuba ukuvuza komphezulu wokutywina.Emva koko ujike, phinda olu vavanyo lungentla de ube ufanelekile.
Uvavanyo lokuqina ekupakisheni kunye ne-gasket ye-pneumaticivalve yesangoiya kuqhutywa phambi kovavanyo lokuxinana kweivalve yesango.
3. Indlela yokuvavanya uxinzelelo lwevalve yebhola
Umoyaivalve yebholauvavanyo lwamandla kufuneka lube kwibhola yeivalve yebholaisiqingatha semeko evulekileyo.
(1) Uvavanyo lokutywina lweivalve yebhola edadayo: I-valve ikwimeko evulekileyo, enye isiphelo singeniswa kwindawo yokuvavanya, kwaye esinye isiphelo sivaliwe.Vula ibhola ngamaxesha amaninzi, vula isiphelo esivaliweyo xa i-valve ivaliwe, kwaye ukhangele ukusebenza kokutywinwa kwe-filler kunye ne-gasket ngexesha elifanayo, kwaye akufanele kubekho ukuvuza.Emva koko i-test medium yaziswa ukusuka kwelinye icala ukuphinda uvavanyo olungentla.
(2) Uvavanyo lokutywinwa kweivalve yebhola esisigxina: Ibhola ijikeleziswa amaxesha amaninzi ngaphandle komthwalo phambi kovavanyo, kunye neivalve yebhola esisigxinaivaliwe, kwaye uvavanyo oluphakathi luyaziswa ukusuka kwelinye icala ukuya kwixabiso elikhankanyiweyo;igeyiji yoxinzelelo isetyenziselwa ukujonga ukusebenza kokutywinwa kwesiphelo sokungena.Ukuchaneka kwe-gauge ye-pressure gauge yi-0.5-1 ibakala, kwaye uluhlu luyi-1.6 amaxesha oxinzelelo lovavanyo.Ngexesha elichaziweyo, akukho nto yokuhla ifanelekile;ke i-test medium yaziswa ukusuka kwelinye icala ukuphinda olu vavanyo lungentla.Emva koko, i-valve ikwimeko evulekileyo, zombini iziphelo zivaliwe, i-cavity yangaphakathi igcwele i-medium, kwaye i-filler kunye ne-gasket ihlolwe phantsi koxinzelelo lovavanyo ngaphandle kokuvuza.
(3) Ivalve yebhola eneendlela ezintathu kufuneka ibe kwindawo nganye yovavanyo lokutywina.
4. Indlela yokuvavanya uxinzelelo lwevalve yeplagi
(1) Xa uvavanyo lwamandla lwevalve yeplagi luqhutywa, i-medium yaziswa ukusuka kwelinye icala, kwaye ezinye iindlela zivaliwe.Iplagi ijikeleziswa kwindawo nganye yokusebenza yokuvula ngokupheleleyo ngokulandelelana kovavanyo.Kwaye akukho kuvuza kufunyenwe kumzimba wevalvu.
(2) Kuvavanyo lokutywinwa, umqhagi othe tye kufuneka ugcine uxinzelelo kumngxuma olulingana naleyo isendleleni, jikelezisa iplagi kwindawo evaliweyo, jonga ukusuka kwelinye icala, emva koko ujikelezise iplagi nge-180 ° ukuya phinda olu vavanyo lungentla.I-valve yeplagi yeendlela ezintathu okanye ezine kufuneka igcine uxinzelelo kwigumbi elilingana nelomnye ekupheleni komjelo, kwaye iplagi kufuneka ijikelezwe kwindawo evaliweyo.Uxinzelelo kufuneka lungeniswe ukusuka ekupheleni kwe-angle elungileyo kwaye luhlolwe ukusuka kwelinye icala ngexesha elifanayo.
Ngaphambi kwebhentshi yokuvavanya i-valve yeplagi, kuvunyelwe ukusebenzisa umaleko we-oyile yokuthambisa i-non-acid dilute kwindawo yokutywina, kwaye akukho kuvuza kunye namaconsi amanzi awandisiweyo afunyenwe ngexesha elichaziweyo.Ixesha lokuvavanya ivalve yeplagi linokuba lifutshane, ngokuqhelekileyo ngokomlinganiselo oqhelekileyo we-l ~ 3min.
Ivalve yeplagi yegesi yamalahle kufuneka ivavanyelwe ukuxinana komoya ngamaxesha angama-1.25 oxinzelelo olusebenzayo.
5. Indlela yokuvavanya uxinzelelo lwevalve yebhabhathane
Uvavanyo lwamandla lweivalve yebhabhathane yepneumaticiyafana nale yeivalve yeglowubhu.Uvavanyo lokusebenza lokutywinwa kweivelufa butterflykufuneka yazise uvavanyo oluphakathi ukusuka ekupheleni flow eliphakathi, ipleyiti butterfly kufuneka ivulwe, esinye isiphelo kufuneka ivalwe, kunye noxinzelelo naliti kufuneka ukuya kwixabiso elichaziweyo.Emva kokujonga ukupakisha kunye nokunye ukuvuza kokutywina, vala ipleyiti yebhabhathane, uvule esinye isiphelo, Kufanelekile ukujonga ukuba akukho kuvuza kwitywina lepuleti yebhabhathane.Ivalve yebhabhathaneukulawulwa kokuhamba akakwazi ukwenza uvavanyo lokusebenza lokutywina.
6. Indlela yokuvavanya uxinzelelo lwevalve ye-diaphragm
Iivalve ye-diaphragmuvavanyo lwamandla lwazisa okuphakathi ukusuka nakweyiphi na isiphelo, ivula idiski, kwaye esinye isiphelo sivaliwe.Emva kokuba uxinzelelo lovavanyo lukhuphukela kwixabiso elichaziweyo, lifanelekile ukubona ukuba umzimba wevalve kunye nesivalo sevalve asinakuvuza.Emva koko unciphise uxinzelelo kuxinzelelo lovavanyo lokutywinwa, vala i-disc, uvule esinye isiphelo sokuhlolwa, akukho kuvuza okufanelekileyo.
7. Indlela yokuvavanya uxinzelelo lwevalve yokukhangela
Khangela ivalveubume bovavanyo : phakamisa i-disc ye-valve yokukhangela i-axis kwindawo ethe tye ;i-axis yetshaneli kunye nomgca wediski weivalve yokujonga ujingiziphantse zangqamana nomgca othe tye.
Kuvavanyo lwamandla, i-medium yokuvavanya ifakwe kwi-inlet end ukuya kwixabiso elichaziweyo, kwaye enye isiphelo ivaliwe.Ifanelekile ukubona ukuba umzimba wevalvu kunye nesivalo sevalvu ayinakuvuza.
Uvavanyo lokutywina lwazisa uvavanyo oluphakathi ukusuka ekupheleni kokuphuma, kwaye ujonge indawo yokutywina kwindawo yokungena.Akukho kuvuza kwi-filler kunye ne-gasket ifanelekile.
8. Indlela yokuvavanya uxinzelelo lwevalve yokhuseleko
(1) Uvavanyo lwamandla evalve yokhuseleko luyafana nolwezinye iivalvu, ezivavanywa ngamanzi.Xa uvavanya indawo engezantsi yomzimba wevalve, uxinzelelo lungeniswa kwi-inlet I = ndiyaphela, kwaye indawo yokutywina ivaliwe;Xa uvavanya umzimba ophezulu kunye nebhonethi, uxinzelelo luyaziswa ukusuka ekuphumeni kwe-El ekupheleni kunye nezinye iziphelo zivaliwe.Umzimba wevalvu kunye nebhonethi ziya kufaneleka ngaphandle kokuvuza ngexesha elichaziweyo.
(2) Uvavanyo lokuqina kunye novavanyo oluqhubekayo loxinzelelo, indlela eqhelekileyo esetyenziswayo yile: ivalve yokhuseleko lomphunga kunye nomphunga ogcweleyo njengendlela yokuvavanya;I-ammonia okanye enye ivalve yegesi enomoya njengendlela yokuvavanya;Ivalve yamanzi kunye nolunye ulwelo olungadlekiyo lisebenzisa amanzi njengendawo yovavanyo.Kwezinye izikhundla ezibalulekileyo zevalve yokhuseleko idla ngokusetyenziswa initrogen njengendawo yovavanyo.
Uvavanyo lwetywina ngexabiso loxinzelelo lwegama njengovavanyo loxinzelelo lovavanyo, inani lamaxesha alikho ngaphantsi kwamaxesha amabini, ngexesha elichaziweyo akukho kuvuza okufanelekileyo.Kukho iindlela ezimbini zokufumanisa ukuvuza: enye kukutywina ukudibaniswa kwevalve yokhuseleko, kwaye unamathisele iphepha le-tissue ngebhotela kwi-flange ye-El, iphepha le-tissue elikhuphayo ngenxa yokuvuza, kungekhona ukugquma kwabafanelekayo;Okwesibini kukusebenzisa ibhotolo ukutywina ipleyiti ebhityileyo yeplastiki okanye ezinye iipleyiti kwindawo engezantsi yeflange yokuphuma, ukugcwalisa amanzi ukutywina idiski yevalve, kwaye ujonge ukuba amanzi akadubuli.Amaxesha okuvavanya uxinzelelo oluqhubekayo kunye noxinzelelo lokubuya kwe-valve yokhuseleko aluyi kuba ngaphantsi kwamaxesha e-3.
9. Indlela yokuvavanya uxinzelelo lwevalve yokunciphisa uxinzelelo
(1) Uvavanyo lwamandla lwevalve yokunciphisa uxinzelelo luhlanganiswe ngokubanzi emva kovavanyo olunye, okanye emva kokuhlanganisana.Ubude bexesha lovavanyo lwamandla: DN<50mm 1min;I-Dn65-150mm ubude kune-2min;I-DN>150mm yayinde kune-3 min.
Emva kokuba i-bellows kunye namacandelo adibeneyo, amaxesha angama-1.5 oxinzelelo oluphezulu emva kokuba i-valve yokunciphisa uxinzelelo isetyenziswe, kwaye uvavanyo lwamandla lwenziwa ngomoya.
(2)Uvavanyo lokuqina lwenziwa ngokweyona ndlela yokusebenza.Xa uvavanya ngomoya okanye ngamanzi, uvavanyo luya kuqhutywa ngamaxesha angama-1.1 uxinzelelo oluncinci;Uvavanyo lwe-steam luya kwenziwa kuxinzelelo oluphezulu oluvumelekileyo lokusebenza kwiqondo lokushisa lokusebenza.Umahluko phakathi koxinzelelo lwe-inlet kunye noxinzelelo lokuphuma aluyi kuba ngaphantsi kwe-0.2MPa.Indlela yokuvavanya: emva kokuba uxinzelelo lwe-inlet lusetyenzisiwe, i-screw yokulungelelanisa i-valve ilungiswa ngokuthe ngcembe, ukwenzela ukuba uxinzelelo lwe-outlet lutshintshe ngokukhawuleza kwaye ngokuqhubekayo ngaphakathi koluhlu oluphezulu kunye nexabiso elincinci, kwaye akuyi kubakho ukuphazamiseka kunye nokuthintela.Kwi-valve yokunciphisa i-steam, xa uxinzelelo lwe-inlet lususiwe, vala i-valve yokusika emva kwe-valve, kwaye uxinzelelo lwe-outlet luphezulu kunye nexabiso eliphantsi.Ngaphakathi kwe-2min, ukuxatyiswa koxinzelelo lwe-outlet kufuneka kuhlangabezane neemfuno ezifanelekileyo.Ngexesha elifanayo, umthamo wepayipi emva kwevalve ufanelekile ngokuhambelana neemfuno ezifunekayo.Kumanzi kunye neevalve zokunciphisa umoya, xa uxinzelelo lwe-inlet lubekwe kwaye uxinzelelo lwe-outlet luyi-zero, i-valve yokunciphisa ivalwe uvavanyo lokutywinwa.Ifanelekile ukuba akukho kuvuza ngaphakathi kwemizuzu emi-2.
Ixesha lokuposa: Feb-08-2023