Ukwemukelwa kwevalvu yepayipi, ukuhlolwa kwengcindezi, Ukufakwa kanye nezindaba ezidinga ukunakwa Yini okufanele inakwe lapho kufakwa i-valve yepayipi?

Ukwemukelwa kwevalvu yepayipi, ukuhlolwa kwengcindezi, Ukufakwa kanye nezindaba ezidinga ukunakwa Yini okufanele inakwe lapho kufakwa i-valve yepayipi?

Ezinhlelweni zamapayipi oketshezi, ama-valve ayizici zokulawula indima yazo eyinhloko iwukuhlukanisa amathuluzi nezinhlelo zamapayipi, ukulawula ukugeleza, ukuvimbela ukubuyela emuva, ukulawula nokukhipha ingcindezi. Ingasetshenziswa ukulawula ukugeleza komoya, amanzi, isitimu, zonke izinhlobo zemithombo yezindaba ezonakalisayo, udaka, uwoyela, insimbi ewuketshezi kanye nemidiya ekhipha imisebe. Ngoba uhlelo lwamapayipi lokukhetha i-valve efanelekile lubaluleke kakhulu, ngakho-ke, ukuqonda izici ze-valve kanye nokukhethwa kwezinyathelo ze-valve kanye nesisekelo nakho kubaluleke kakhulu.
Ama-valve
Ezinhlelweni zamapayipi oketshezi, ama-valve ayizici zokulawula indima yazo eyinhloko iwukuhlukanisa amathuluzi nezinhlelo zamapayipi, ukulawula ukugeleza, ukuvimbela ukubuyela emuva, ukulawula nokukhipha ingcindezi. Ingasetshenziswa ukulawula ukugeleza komoya, amanzi, isitimu, zonke izinhlobo zemithombo yezindaba ezonakalisayo, udaka, uwoyela, insimbi ewuketshezi kanye nemidiya ekhipha imisebe. Ngoba uhlelo lwamapayipi lokukhetha i-valve efanelekile lubaluleke kakhulu, ngakho-ke, ukuqonda izici ze-valve kanye nokukhethwa kwezinyathelo ze-valve kanye nesisekelo nakho kubaluleke kakhulu.
Imisebenzi emi-4 ye-valve yamapayipi
Okokuqala, nquma futhi ukhulule i-medium
Lona umsebenzi oyisisekelo we-valve, ngokuvamile ukhetha i-valve yokudlula eqondile, ukumelana nokugeleza kwayo kuncane.
I-valve evalekile eya phansi (i-valve yembulunga, i-plunger valve) ngenxa yendlela yayo yokugeleza ehlukumezayo, ukumelana nokugeleza kuphakeme kunamanye ama-valve, ngakho akhethiwe kancane. Ama-valve avaliwe angasetshenziswa lapho ukumelana nokugeleza okuphezulu kuvunyelwe.
Okwesibili, lawula ukugeleza
I-valve okulula ukuyilungisa ngokuvamile ikhethwa ukulawula ukugeleza. Amavalvu OKUVALA abheke phansi (njengamavalvu e-GLOBE) AYIfanele Le Nhloso NGOBA Usayizi WeSIHLALO ULINGANISANA NE-STROKE YOKUVALA.
AMAVAVAVA Ajikelezayo (I-PLUG, uvemvane, amavalvu EBHOLA) kanye AMAVAVAVA OMZIMBA AFLEKILEYO (I-PINCH, I-DIAPHRAGM) AYATHOLAKALA NAWO UKULAWULWA OKUTHROTTLING, kodwa NGOKUVAMILE KUPHELA ebangeni elilinganiselwe lama-valve DIAMETERS.
I-VALVE yesango Isango elimise okwediski eliya embobeni yesihlalo esiyindilinga ukuze lenze ukunyakaza okuphambene, liseduze kuphela nendawo evaliwe, lingalawula kangcono ukugeleza, ngakho ngokuvamile alisetshenziselwa ukulawula ukugeleza.
Okwesithathu, ukuhamba kwe-shunt
I-valve ingaba namashaneli amathathu noma ngaphezulu, kuye ngesidingo sokuhlehla nokuphambukisa. Ama-valve okuxhuma nebhola afaneleka kakhulu kule njongo, ngakho-ke, ama-valve amaningi asetshenziselwa ukuhlehla nokuphambukisa akhethwa njengenye yala mavalvu.
Kodwa-ke, KWEZINYE IZIMO, ezinye IZINHLOBO ZAMAVAVAZI ZINGASE NAZO ZISETSHENZISWA NJENGEZIPHUMZI ZOhambo lokuya emsebenzini, INqobo nje kokuthi AMAVAVA AMABILI noma AMANINGI Axhumeke ngokufanele kwelinye.
4. Phakathi nezinhlayiya ezimisiwe
Lapho i-medium enezinhlayiya ezimisiwe, ** ifanele ukusetshenziswa kwezingxenye zokuvala eduze kwendawo yokuvala ye-valve eshelelayo enesenzo sokusula.
Uma UKUVALA KUME EMVA KWESIHLALO NAPHAMBILI, IZIQINISEKISO INGASE ZIBOSHWE, KHONA LE VALIVU IFANELE KUPHELA IMIDIYA EHLANZEKILE NGOKUQINISEKILE NGAPHANDLE NGAPHANDLE KOKUBA IMALI YOKUVALA IVUMELE UKUTHI IZIHLAYA ZIBOSHWE. Ama-valve ebhola nama-plug valve asula indawo yokuvala ngesikhathi sokuvula nokuvala, ngakho afaneleka ukusetshenziswa kumidiya enezinhlayiya ezimisiwe.
I-valve yamapayipi njengengxenye ebalulekile yesistimu yenqubo. Izinga lokufakwa kwe-valve yamapayipi linquma ngokuqondile ukufezeka okuhle kwemisebenzi ehlobene yohlelo lwenqubo. Izixhumanisi zokulawula eziyinhloko zabaphathi bayo zimi kanje:
1, ukuhlolwa kwe-valve nokwamukelwa
1.1 Ukuhlolwa kokubukeka kwamavalvu: azikho izimbotshana, i-trachoma, imifantu nokugqwala emzimbeni wamavalvu; Isiqu asigobi, isenzakalo sokugqwala, intambo ye-stem ibushelelezi, icocekile ngaphandle kocingo oluphukile; Indlala ngokuzungeza okuhle, okuguquguqukayo kwesondo lesandla; Indawo yokubeka uphawu ye-Flange ngaphandle kokuklwebheka, ama-pockmark, njll.; Ukuxhumeka kwentambo kusesimweni esihle; I-welding groove efanelekayo. Inombolo yebhithi ye-valve, ingcindezi kanye neminye imingcele ihambisana nomklamo.
1.2 Ukuhlolwa kwemibhalo: Amadokhumenti ikakhulukazi ahlanganisa: ipulani yekhwalithi, ubufakazi bempahla, imidwebo eyakhiwe, amarekhodi okuhlola, amamanuwali okunakekela, izidingo zokugcinwa, kanye nesitifiketi sokuvumelana. Amavalvu angavumelani kufanele abe nemibhalo ehambisanayo yokukhululwa enemibandela kanye namapuleti okuhlonza angahambisani nebhizinisi.
2. Izidingo zokugcinwa kwe-valve nokugcinwa kwazo
Gcina i-valve yokungena kanye ne-outlet ivaliwe futhi ubeke i-desiccant, shintsha njalo ngokusho kwemiyalelo ye-desiccant. Nquma izinga lokushisa, umswakama kanye nezidingo zemvelo zokugcinwa ngokuvumelana nemibhalo yokulungisa ama-valve. Kumavalvu ensimbi engagqwali, qaphela ukukhetha izinto zokugoqa ezingezona i-halogen. Ama-valve kufanele ahlolwe futhi agcinwe njalo ngesikhathi sokugcina.
3, ukuhlolwa kwengcindezi ye-valve
Ngenxa yokuthi i-valve yenziwe igobolondo, isihlalo kanye nokuhlolwa kwengcindezi yokuvala ngaphambi kokushiya imboni, yenza kuphela ukuhlolwa kokuvala kwe-valve esizeni. Ngobubanzi nengxenye yokuqinisekisa, izinga likazwelonke le-GB50184-2011 lichaza ingxenye yokuhlolwa kwengcindezi yasensimini, izindinganiso zangaphandle azinazo izidingo. Ngokuvamile umnikazi unqunywa ngokuya ngokugadwa kwekhwalithi kanye nesipiliyoni sokusebenzisa sesiteji sokukhiqiza ama-valve, futhi ivalvu evamile idinga ukuvalwa ngo-100% ensimini.
3.1 Izidingo eziphakathi kokuhlola: indawo yokuhlola i-valve ngamanzi; Sebenzisa amazinga ahlukene ekhwalithi yamanzi ngokuya ngokuhlanzeka kohlelo; Kodwa-ke, lapho isisetshenziswa se-valve siyigesi, indawo yokuhlola ikhethwa ukusebenzisa umoya ocindezelwe ongenawo uwoyela owomile noma i-nitrogen, futhi ingathathelwa indawo umfutho wamanzi.
3.2 Ukunqunywa kokucindezela kokuhlolwa kokuvala: Izidingo zokuvala ukucindezela kokuhlolwa kwamavalvu ku-GB/T13927-2008 kanye ne-ASME B16.34 kanye ne-MSS-SP-61 ngokuyisisekelo ziyafana. I-HYDROSTATIC TEST PRESURE IYIZIKHATHI EZINGU-1.1 IZIKHATHI OKULINGANISWE ESIKALASI SOkucindezela I-VALVE EKU-100OF, NOMA UKUHLOLA OKUPHANSI NGAPHANSI KWAMA-80psi OKUNGENZEKA KUSETSHENZISWA. Lapho I-valve NAMEplate IMAKA NGOMEhluko OMKHULU WOKUCINDEZELA WOKUSEBENZA NOMA indlela YOKUSEBENZA ye-valve ayifanele ukuhlolwa komfutho wokuvalwa komfutho ophezulu, Ukucindezela kokuhlola kungenziwa ngokuvumelana nezikhathi ezingu-1.1 zomehluko omkhulu wengcindezi yokusebenza ephawulwe nge- i-valve nameplate.
3.3 Ukuhlolwa kwemiphumela yokuhlolwa: Incazelo yokuhlola yokuvala ivalvu idinga kuphela ukuhlola ukuthi kuhlale isikhathi esifushane kakhulu, futhi asikho isidingo esikhethekile sokuvala isivivinyo isikhathi esingekho ngaphansi kwemizuzu emi-5 ekusebenzeni kwangempela. I-valve evalwe ngezinto eziguquguqukayo ngeke ibe nokuvuza okubonakalayo futhi akukho kwehla kwengcindezi yegeji yokucindezela phakathi nesikhathi sokubamba ingcindezi. EZINXENYENI ZOKUDIYIKA IVAVVU EVUMELA UKUVUZA, I-USSS INGASE IKALA NGOKUQONDILE UKUVUZA NGESIKHATHI SESIKHATHI SESIKHATHI SESIKHATHI NOMA ISEBENZISE INANI LAMABHHUBHU NOMA AMADHOSHA AMANZI NJENGOBA KUCHAZWE KUHLOKO LWE-MSS-SP-61. Ukuvuza KUhlobene nobubanzi obujwayelekile be-valve. Imfuneko yokuvuza yezinga likazwelonke iyafana naleyo yezinga laseMelika.
4. Ukufakwa kwe-valve
4.1 Hlola ulwazi ngaphambi kokufakwa: Qinisekisa inombolo yebhithi, inombolo yesistimu, uhlobo, izinga lokucindezela kanye nolunye ulwazi ebhizinisini lempahla ngokolwazi lwevalvu emidwebeni namadokhumenti okushintsha umklamo we-****, futhi uqinisekise ukuthi indawo yokufaka nokunye okulandelayo indawo yokulungisa yanele. Ukusebenza kwevalvu kuyafinyeleleka.
4.2 Ukuvikelwa kwe-valve: Ezingxenyeni ezisengozini ze-valve, ukuqaqa noma ukuvikela okuqinile kungenziwa ngaphambi kokufakwa. Amapayipi KANYE NEZINHLOBO ZOKUFAKA IVAVVU KUFANELE KUHLANZWE KUDILI UKUZE KUQINISEKISE UKUHLANZEKA KWANGANGAPHAKATHI UKUVIMBELA UDOTI EMPHAPHENI KANYE NEZINHLOSI EKUBONA ZIKONA INDAWO EVALWAYO YEVAVU.
4.3 Isiqondiso sokufaka: Isiqondiso sokugeleza esimakwe emzimbeni we-valve kufanele sihambisane nesiqondiso sokugeleza kwendawo yesistimu. I-valve yokuphepha kufanele ifakwe phezulu. Ukuze i-valve yokuhlola i-lift, ingafakwa kuphela epayipini elivundlile kufanele liqinisekise ukuthi i-valve disc ime mpo; Ukuze uthole ama-valve okuhlola ukuswayipha, gcina izinga lephini.
4.4 Ukufakwa nokuxhumeka kwe-valve:
Ama-valve e-Weld: HLOLA usayizi we-valve groove, qinisekisa impahla ye-valve, sebenzisa i-WPS efanele. Ukuze i-valve yokushisela uphawu oluthambile, lapho i-welding, ingasusa indandatho yokuvala ngemva kokushisela, ukushisela kuqediwe ukuze kufakwe kabusha indandatho yokuvala; Ingabuye ilawulwe ngokuvuleka kwe-valve kanye nezinga lokushisa lokushisela ngokuvumelana nezidingo zomkhiqizi. Kumavalvu ADINGA ukwelashwa ngokushisa ngaphambi nangemuva kokushiselwa kwamapayipi aminyene odongeni ingxubevange, naka inani lokushisa elivumelekile lezingxenye zangaphakathi zevalvu ngesikhathi sokwelashwa kokushisa.
I-valve ye-Flange: Hlola ukuthi indawo yokuvala ye-flange ayinasici futhi ifomu lokuvala kanye nezinga lokucindezela kwe-flange yokuxhuma kufanele kufane. Akuvunyelwe ngokuphelele ukuphoqa iqembu. Ama-bolts kufanele afakwe ngokukhululekile, aqiniswe ngokulinganayo futhi aqoshwe i-torque. Kuma-valve okushisa aphezulu angaphezu kuka-300, ukushisa qinisa i-flange bese upakisha amabhawodi e-gland ngaphansi kwesimo esishisayo.
Ukuxhumeka kwentambo: uma ucabangela ukususwa okulungile, kungcono ukusetha amalunga aguquguqukayo emikhawulweni yomibili ye-valve, unake ukukhethwa kwezinto zokuvala intambo, ithusi, umshini wensimbi owenziwe ama-valve angewona ensimbi, intambo ayikwazi ukugoqwa futhi. iqinile, ukuze ingalimazi i-valve.
5, valve izinkinga ezivamile kanye nokulawula izinyathelo
Inkinga evame kakhulu ekufakweni kwe-valve yasensimini ukuvuza kwe-valve. Izizathu eziyinhloko yilezi:
1. Ukungahlanzeki kahle kwepayipi kubangela ukuthi izidumbu zangaphandle zibhajwe endaweni evalekayo yevalvu futhi kulimaze indawo evalekayo;
2, ukulawulwa kwezinga lokushisa kwe-welding akulungile, okuholela ekushiseni kwe-valve seal;
3. Ngemva kokuphothulwa kokuhlolwa kwe-hydraulic, i-valve ayihlanzwa futhi yomiswe ngesikhathi, okuholela ekugqwaleni kwe-valve;
4, i-valve yokupakisha i-gland bolt ayiboshiwe;
5, valve ukupakisha ukwehluleka uphawu umonakalo.
Imithetho ejwayelekile yokufaka
1. Indawo yokufaka i-valve akufanele iphazamise ukusebenza, ukuhlakazwa nokugcinwa kwempahla, ipayipi kanye nomzimba we-valve ngokwawo, kuyilapho kucatshangelwa ukubukeka komhlangano.
2. Ngama-valve kumapayipi avundlile, faka isiqu se-valve phezulu noma nge-Engeli ethile, ungafaki isondo lesandla liye phansi. Ivalvu, isiqu kanye nesondo lesandla epayipini lokuphakama okuphezulu kungafakwa ngokuvundlile, futhi ukuvuleka nokuvalwa kwe-valve kungasetshenziswa ukude ngeketango endaweni ephansi eqondile.
3. Ukuhlelwa kwe-Symmetrical, kuhlanzekile futhi kuhle; Ivalvu esesikhuphukeni, ngaphansi kwesisekelo sokuvumela inqubo, isondo le-valve lesandla liye ekuphakameni kwesifuba ** ukusebenza okufanelekile, ngokuvamile okungu-1.0-1.2m ukusuka phansi kufanelekile, futhi isiqu se-valve kufanele sifakwe eceleni kokuqondisa komqhubi.
4. Ukuphakama komugqa omaphakathi wamavalvu esikhuphukeni esiseceleni neseceleni kuyavumelana ngokuqhathaniswa, futhi ibanga lenethi phakathi kwamasondo ezandla alikho ngaphansi kuka-100mm; Amavalvu emigqeni evundlile ehlangothini nehlangothini kufanele anyakaze ukuze kuncishiswe isikhala samapayipi.
5. Uma ufaka ama-valve asindayo kumaphampu amanzi, ama-heaters nezinye izinto zokusebenza, izisekelo ze-valve kufanele zisethwe; Uma i-valve isebenza njalo futhi ifakwe ngaphezu kwe-1.8m ukusuka endaweni yokusebenza, kufanele kuhlinzekwe isiteji sokusebenza esingashintshi.
6. Uma kunophawu lomcibisholo emzimbeni wevalvu, iphoyinti lomcibisholo liyisiqondiso sokugeleza kwe-medium. Lapho ufaka i-valve, qaphela ukuthi umcibisholo ukhomba endaweni efanayo nephakathi epayipini.
7. Uma ufaka ama-valve e-flange, qiniseka ukuthi ubuso obubili be-flange buhambisana futhi bugxilile, futhi ungasebenzisi ama-gaskets amabili.
8. Lapho ufaka ama-valve ane-threaded, i-valve enezintambo kufanele ifakwe uxhumano olubukhoma ukuze kuhlakazwe kalula. Ukusethwa koxhumano olubukhoma kufanele kucabangele ukunethezeka kokulungiswa, ngokuvamile amanzi ageleza kuvalvu bese kuba ngoxhumano olubukhoma.