Ngokuvamile, ukuhlolwa kwamandla akwenziwa lapho kusetshenziswa i-valve yezimboni, kodwa ukuhlolwa kwamandla kufanele kwenziwe ngemva kokuba umzimba we-valve kanye nesembozo se-valve kulungiswa noma kugqwalile.Nge-valve yokuphepha, ukucindezela kwayo okuqhubekayo nokucindezela kokubuyisela nokunye ukuhlolwa kufanele kuhambisane nemiyalelo yayo nemithethonqubo efanele.Ukuhlolwa kwamandla e-valve kanye nokuhlolwa kokuvalwa kwe-valve kufanele kwenziwe ebhentshini lokuhlola i-valve hydraulic ngaphambi kokufakwa kwe-valve.I-valve yokucindezela okuphansi isheke i-20%, uma ingafaneleki kufanele ihlolwe ngu-100%;amavalvu omfutho ophakathi nendawo nophezulu kufanele ahlolwe ngo-100%.Imidiya evame ukusetshenziswa yokuhlola umfutho we-valve amanzi, uwoyela, umoya, isitimu, i-nitrogen, njll. Izindlela zokuhlola ingcindezi zamavalvu ahlukahlukene ezimboni anamavalvu womoya zimi kanje :
1. Indlela yokuhlola ingcindezi ye-globe valve kanye ne-throttle valve
Ekuhlolweni kwamandla kai-valve yomhlabakanye ne-throttle valve, i-valve ehlanganisiwe ivame ukufakwa kuhlaka lokuhlola ingcindezi, i-disc ye-valve ivuliwe, i-medium ijovwe enani elishiwo, futhi uhlole ukuthi umzimba we-valve kanye ne-valve ikhava ukujuluka nokuvuza.Ukuhlolwa kwamandla nakho kungenziwa esiqeshaneni esisodwa.Ukuhlolwa kokubeka uphawu kuphelai-valve yomhlaba.Ngesikhathi sokuhlolwa, isiqu se-i-valve yomhlabaisesimweni esiqondile, i-disc ivuliwe, futhi okuphakathi kwethulwa kusukela phansi kwe-disc kuya kunani elicacisiwe, futhi ukupakisha kanye ne-gasket kuyahlolwa.Ngemva kokufaneleka, vala idiski ye-valve bese uvula enye ingxenye ukuze uhlole ukuvuza. Uma kokubili amandla e-valve nokuhlolwa kokuvala kudingeka kwenziwe, ungaqala uhlole amandla, bese wehlela esivivinyweni sokuvala inani elishiwo, hlola ukupakisha. kanye ne-gasket;bese uvala i-disc bese uvula i-outlet ukuze uhlole ukuthi indawo yokuvala uphawu iyavuza yini.Uma ukuhlolwa kwamandla e-valve nokuqina kufanele kwenziwe, ungenza ukuhlolwa kwamandla kuqala, bese ucindezela inani lokuhlola ukuqina, hlola ukupakisha futhi i-gasket;Bese uvala i-disc, vula isiphetho sokuphuma ukuze uhlole ukuthi ukuvuza kwendawo yokuvala uphawu.
2. Indlela yokuhlola ingcindezi ye-valve yesango
Ukuhlolwa kwamandla kwei-valve yesangoiyafana naleyo yei-valve yomhlaba.Kunezindlela ezimbili zokuhlola ukuqina kweama-valve esango.
(1)Isango liyavuleka, ukuze umfutho ongaphakathi kwevalvu ukhuphuke ube inani elishiwo;Bese uvala isango, ngokushesha akhiphei-valve yesango, hlola ukuthi kukhona ukuvuza esicini ezinhlangothini zombili zesango noma faka ngokuqondile i-test medium kupulaki esembozweni se-valve enanini elishiwo, hlola uphawu ezinhlangothini zombili zesango.Indlela engenhla ibizwa ngokuthi i-intermediate pressure test.Le ndlela ayifanele ukuhlolwa kophawu lweama-valve esangoenobubanzi obuncane be-DN32mm ngezansi.
(2) Enye indlela ukuvula isango, ukuze ingcindezi yokuhlola i-valve ibe nenani elishiwo;Bese uvala isango, vula umkhawulo owodwa wepuleti eliyimpumputhe, uhlole ukuthi ukuvuza kwendawo yokuvala uphawu.Bese uhlehla, phinda ukuhlolwa okungenhla uze ufaneleke.
Ukuhlolwa kokuqina kokupakisha kanye ne-gasket ye-pneumatici-valve yesangoizokwenziwa ngaphambi kokuhlolwa kokuqina kwei-valve yesango.
3. Indlela yokuhlola ingcindezi ye-valve yebhola
I-pneumatici-valve yebholaukuhlolwa kwamandla kufanele kube ebholeni lei-valve yebholaisimo esivulekile ingxenye.
(1) Ukuhlolwa kokuvalwa kwei-valve yebhola elintantayo: I-valve isesimweni esivuleke kancane, isiphetho esisodwa singeniswa endaweni yokuhlola, kanti enye ivaliwe.Vula ibhola izikhathi eziningana, vula ukuphela okuvaliwe lapho i-valve ivaliwe, futhi uhlole ukusebenza kokuvala kwe-filler ne-gasket ngesikhathi esifanayo, futhi akufanele kube khona ukuvuza.Bese kuthi i-test medium yethulwe ukusuka komunye umkhawulo ukuze iphinde isivivinyo esingenhla.
(2) Ukuhlolwa kokubekwa uphawu kwei-valve yebhola engashintshi: ibhola lijikeleziswa izikhathi eziningana ngaphandle komthwalo ngaphambi kokuhlolwa, kanye nei-valve yebhola engashintshiivaliwe, futhi indlela yokuhlola yethulwa ukusuka ekugcineni ukuya enanini elishiwo;i-gauge yokucindezela isetshenziselwa ukuhlola ukusebenza kokuvala kokuphela kokungena.Ukunemba kwegeji yokucindezela kuyibanga le-0.5-1, futhi ububanzi buyizikhathi ezingu-1.6 zokucindezela kokuhlolwa.Phakathi nesikhathi esishiwo, akukho mkhuba wokwehla ofaneleka;bese kuthi i-test medium yethulwe ukusuka komunye umkhawulo ukuze iphinde isivivinyo esingenhla.Khona-ke, i-valve isesimweni esivulekile, zombili iziphetho zivaliwe, i-cavity yangaphakathi igcwele i-medium, futhi i-filler ne-gasket ihlolwe ngaphansi kwengcindezi yokuhlola ngaphandle kokuvuza.
(3) Ivalvu yebhola enezinhlangothi ezintathu kufanele ibe sendaweni ngayinye yokuhlolwa kokuvala.
4. Indlela yokuhlola ingcindezi ye-plug valve
(1) Uma ukuhlolwa kwamandla kwe-valve yepulaki kwenziwa, okuphakathi kwethulwa kusukela ekugcineni, futhi ezinye izindlela zivalekile.Ipulaki izungeziswa endaweni ngayinye yokusebenza yokuvuleka okugcwele ngokushintshana ukuze kuhlolwe.Futhi akukho ukuvuza okutholakala emzimbeni we-valve.
(2) Esivivinyweni sokuvala, iqhude eliqondile kufanele ligcine ukucindezela emgodini olingana nalokho okusendleleni, ukushintshanisa ipulaki endaweni evaliwe, hlola ukusuka komunye umkhawulo, bese uzungezisa ipulaki ngo-180 ° ukuze phinda isivivinyo esingenhla.I-valve yepulaki yezindlela ezintathu noma ezine kufanele igcine ingcindezi ekamelweni ilingana naleyo esekupheleni kwesiteshi, futhi ipulaki kufanele izungeziswe endaweni evaliwe.Ukucindezela kufanele kwethulwe kusukela ekugcineni kwe-engeli futhi kuhlolwe kusukela komunye umkhawulo ngesikhathi esifanayo.
Ngaphambi kwebhentshi lokuhlola i-valve yepulaki, kuvunyelwe ukusebenzisa ungqimba lwamafutha okugcoba angena-asidi ahlanjululwe endaweni yokuvala, futhi akukho ukuvuza namaconsi amanzi akhulisiwe atholakala phakathi nesikhathi esibekiwe.Isikhathi sokuhlola i-valve yokuxhuma singaba sifushane, ngokuvamile ngokuya ngobubanzi obungu-l ~ 3min.
I-valve yepulaki yegesi yamalahle kufanele ihlolwe ukuqina komoya izikhathi ezingu-1.25 zokucindezela kokusebenza.
5. Indlela yokuhlola ingcindezi ye-butterfly valve
Ukuhlolwa kwamandla kweI-valve ye-butterfly ye-pneumaticiyafana naleyo yei-valve yomhlaba.Ukuhlolwa kokusebenza kokuvalwa kweuvemvane valvekufanele yethule i-test medium kusukela ekugcineni kokugeleza okuphakathi, ipuleti levemvane kufanele livulwe, elinye ukuphela kufanele livalwe, futhi ingcindezi yomjovo kufanele ifinyelele inani elishiwo.Ngemva kokuhlola ukupakisha nokunye ukuvuza kokuvala, vala ipuleti uvemvane, vula omunye umkhawulo, Kuyafaneleka ukuhlola ukuthi akukho ukuvuza uphawu lwepuleti levemvane.Butterfly valvengokulawula ukugeleza akukwazi ukwenza ukuhlolwa kokusebenza kokuvala.
6. Indlela yokuhlola ingcindezi ye-valve ye-diaphragm
Ii-valve ye-diaphragmukuhlolwa kwamandla kwethula okuphakathi nendawo ukusuka kunoma yimaphi amaphethelo, kuvula idiski, bese enye iphetho ivaliwe.Ngemuva kokuthi ingcindezi yokuhlola ikhuphukele enanini elishiwo, ifaneleka ukubona ukuthi umzimba we-valve kanye nesembozo se-valve akukho ukuvuza.Bese wehlisa ukucindezela ekucindezelweni kokuhlolwa kokuvala, vala i-disc, vula omunye umkhawulo ukuze uhlolwe, akukho ukuvuza okufanelekile.
7. Indlela yokuhlola ingcindezi ye-valve yokuhlola
Hlola i-valveisimo sokuhlola : phakamisa i-valve disc axis endaweni evundlile;i-axis yesiteshi kanye ne-disc axis yejika i-valve yokuhlolacishe zihambisana nomugqa ovundlile.
Ekuhlolweni kwamandla, i-test medium yethulwa ukusuka ekugcineni kwe-inlet kuya kunani elishiwo, futhi enye iphetho ivaliwe.Kuyafaneleka ukubona ukuthi umzimba we-valve kanye nesembozo se-valve akukho ukuvuza.
Ukuhlolwa kokuvala kwethula indawo yokuhlola kusukela ekugcineni kwe-outlet, futhi ihlola indawo yokuvala ekugcineni kokungena.Akukho ukuvuza ku-filler kanye ne-gasket kufanelekile.
8. Indlela yokuhlola ingcindezi ye-valve yokuphepha
(1) Ukuhlolwa kwamandla kwevalvu yokuphepha kuyafana nokwamanye amavalvu, ahlolwa ngamanzi.Lapho kuhlolwa ingxenye engezansi yomzimba we-valve, ukucindezela kwethulwa kusuka ku-inlet I = ngiyaphela, futhi indawo yokuvala ivaliwe;Lapho kuhlolwa umzimba ophezulu kanye nebhonethi, ingcindezi yethulwa kusukela ekugcineni kwe-El kanye nezinye iziphetho zivaliwe.Umzimba wevalvu kanye nebhonethi kuzofaneleka ngaphandle kokuvuza phakathi nesikhathi esibekiwe.
(2) Ukuhlolwa kokuqina kanye nokuhlolwa kwengcindezi engaguquki, indlela evamile esetshenziswa yilena: ivalvu yokuphepha yesitimu enesitimu esigcwele njengesisetshenziswa sokuhlola;I-ammonia noma enye i-valve yegesi enomoya njengendawo yokuhlola;Ivalvu yamanzi nolunye uketshezi olungagqwali isebenzisa amanzi njengendawo yokuhlola.Kwezinye izikhundla ezibalulekile zevalvu yokuphepha evame ukusetshenziswa i-nitrogen njengendawo yokuhlola.
Ukuhlola uphawu ngevelu yengcindezi yokulinganisa njengokuhlolwa kwengcindezi yokuhlola, inani lezikhathi alikho ngaphansi kwezikhathi ezimbili, ngesikhathi esishiwo akukho ukuvuza okufanelekile.Kunezindlela ezimbili zokutholwa kokuvuza: enye iwukuvala ukuxhumana kwe-valve yokuphepha, futhi unamathisele iphepha lethishu ngebhotela ku-flange ye-El, iphepha le-tissue eliqhumayo ukuze livuze, lingaqhumeli kwabaqeqeshiwe;Okwesibili ukusebenzisa ibhotela ukuze uvale ipuleti elincane lepulasitiki noma amanye amapuleti engxenyeni engezansi ye-outlet flange, ukugcwalisa amanzi ukuze uvale i-valve disc, futhi uhlole ukuthi amanzi awaphuli yini.Izikhathi zokuhlola zokucindezela okuqhubekayo kanye nokucindezela kokubuyisela kwe-valve yokuphepha akufanele kube ngaphansi kwezikhathi ezi-3.
9. Indlela yokuhlola ingcindezi ye-valve yokunciphisa ingcindezi
(1) Ukuhlolwa kwamandla kwe-valve yokunciphisa ingcindezi ngokuvamile kuhlanganiswe ngemva kokuhlolwa okukodwa, noma ngemva kokuhlanganiswa.Ubude besikhathi sokuhlolwa kwamandla: DN<50mm 1min;I-Dn65-150mm ubude kune-2min;I-DN>150mm yayinde kunemizuzu emi-3.
Ngemuva kokuthi ama-bellows kanye nezingxenye zishiselwe, izikhathi ezingu-1.5 zokucindezela okuphezulu ngemuva kokusetshenziswa kwe-valve yokunciphisa ingcindezi, futhi ukuhlolwa kwamandla kwenziwa ngomoya.
(2) Ukuhlolwa kokuqina kwenziwa ngokwendlela yokusebenza yangempela.Lapho kuhlolwa ngomoya noma ngamanzi, ukuhlolwa kuzokwenziwa izikhathi ezingu-1.1 zokucindezela okuzisholo;Ukuhlolwa kwe-steam kuzokwenziwa ngengcindezi ephezulu evumelekile yokusebenza ekushiseni okusebenzayo.Umehluko phakathi kwengcindezi yokungena kanye nokucindezela kokuphumayo akufanele kube ngaphansi kuka-0.2MPa.Indlela yokuhlola iwukuthi: ngemva kokusetha ukucindezela kwe-inlet, isikulufu sokulungisa se-valve silungiswa kancane kancane, ukuze ingcindezi yokuphuma ingashintsha ngokuzwela nangokuqhubekayo ngaphakathi kwebanga lenani eliphakeme nelincane, futhi angeke kube khona ukumila kanye nokuvimbela.Ukuze i-valve yokunciphisa umusi, lapho ukucindezela kokungena kususwa, vala i-valve yokusika ngemuva kwe-valve, futhi ukucindezela kokuphuma kuyinani eliphakeme kakhulu neliphansi kakhulu.Phakathi nemizuzu emi-2, ukwazisa kokucindezela kokuphumayo kufanele kuhlangabezane nezidingo ezifanele.Ngesikhathi esifanayo, umthamo wepayipi ngemuva kwe-valve ufanelekile ngokuhambisana nezidingo ezidingekayo.Ngama-valve okunciphisa amanzi nomoya, lapho umfutho we-inlet usethiwe futhi ingcindezi yokuphuma inguziro, i-valve yokunciphisa ivaliwe ukuze kuhlolwe ukuvala.Iyafaneleka uma kungekho ukuvuza kungakapheli imizuzu emi-2.
Isikhathi sokuthumela: Feb-08-2023