Ulwazi lokufakwa kwamavalvu kanye nezindaba ezidinga ukunakwa kwezidingo zokufakwa kwe-valve yesitshalo se-petrochemical

Ulwazi lokufakwa kwe-valve kanye nezindaba ezidinga ukunakwa izidingo zokufakwa kwe-valve yesitshalo se-petrochemical Izidingo zokufakwa kwe-valve Ikhwalithi YOkufakwa kwe-valve yinhle noma yimbi, ithinta ngokuqondile ukusetshenziswa kwe-valve ngemva, ngakho-ke, iyunithi yokwakha kanye neyunithi yokukhiqiza kufanele yethulwe ukuze inamathisele ukubaluleka okukhulu. Ukufakwa kwe-valve kuzokwenziwa ngokuhambisana nebhukwana lemiyalo ye-valve kanye nemithethonqubo efanele. Ngesikhathi sokwakha, kufanele sihlole ngokucophelela futhi sakhe ngokucophelela. Ngaphambi kokuthi I-valve IFAKWE, KUMELE IFAKWE ngemva kokuthi ukuhlolwa komfutho sekufanelekile. Hlola ngokucophelela ukuthi ukucaciswa kanye nemodeli ye-valve kuhambisana nemidwebo, hlola ukuthi izingxenye ze-valve ziqinile yini, ukuthi i-valve yokuvula nokuvala iyaguquguquka futhi ikhululekile, nokuthi indawo yokuvala yonakalisiwe, njll., futhi ufake. i-valve ngemva kokuqinisekisa. Lapho i-valve ifakiwe, indlela yokusebenza ye-valve kufanele ibe ngu-1.2m ukusuka emhlabathini wokusebenza, ozogubha ngesifuba. Lapho isikhungo se-valve nesondo lesandla singaphezu kuka-1.8m kude nendawo yokusebenza, isiteji sokusebenza kufanele simiselwe ama-valve nama-valve okuphepha ngokusebenza okwengeziwe. Ukuze uthole amapayipi anama-valve amaningi, zama ukugxilisa ama-valve endaweni yesikhulumi ukuze usebenze kalula. Izinto ezinjengama-sprockets, ama-extension rod, izinkundla ezigudlukayo, nezitebhisi ezinyakazayo zingase zisetshenziselwe amavalvu ngamanye angaphezu kuka-1.8m futhi angasebenzi njalo. Uma IFIKELWE IVAVVU NGEZANSI KOMSEBENZI OSEBENZA, INDLELA YOKWENZA IZOHLINZWA, futhi i-valve yaphansi izohlinzekwa ngomthombo waphansi, ozovalwa ukuze uphephe. Isiqu se-valve epayipini elivundlile kufanele sibheke phezulu. Akufanelekile ukufaka isiqu phansi. I-valve igxilisa ukufakwa phansi, ukusebenza okungalungile, ukulungiswa okungahambi kahle, kodwa futhi kulula ukubola ingozi ye-valve. Ungafaki i-valve yaphansi ukuze ugweme ukusebenza okungalungile. Ivalvu eseceleni kwepayipi lephayiphi kufanele ibe nesikhala sokusebenza, ukulungisa nokuqaqa, futhi ibanga lenethi phakathi kwamasondo ezandla akufanele libe ngaphansi kuka-100mm. Uma ibanga phakathi kwamapayipi lincane, i-valve kufanele inyakaze. Ukuze i-valve enamandla amakhulu okuvula, amandla aphansi, i-brittleness enkulu nesisindo esikhulu, i-valve yokusekela ifreyimu ye-valve kufanele isethwe ngaphambi kokufakwa ukuze kuncishiswe ukucindezeleka kokuqala. Uma ufaka i-valve, sebenzisa i-wrench yepayipi yepayipi eliseduze ne-valve kanye ne-wrench evamile ye-valve ngokwayo. Ngesikhathi esifanayo, ukufakwa, ukwenza i-valve esimweni esivaliwe ukuvimbela ukujikeleza kwe-valve nokuguqulwa. Ukufakwa okulungile kwe-valve kufanele kwenziwe ifomu lesakhiwo sangaphakathi ngokuhambisana nesiqondiso sokugeleza kwe-medium, ifomu lokufaka ngokuhambisana nezidingo ezikhethekile zesakhiwo se-valve kanye nezidingo zokusebenza. Ukunakwa okukhethekile kufanele kukhokhwe ezidingweni zokugeleza okuphakathi kwe-valve kufanele kufakwe ngokwezidingo zepayipi lenqubo. AMALUNGISELELO EVAVAVU KUFANELE ABE EZULWINI FUTHI KUFIKELWE OMSEBENZISI. Kuma-valve e-lift-stem, kufanele kube nendawo yokusebenza. Isiqu sawo wonke ama-valve kufanele sifakwe phezulu futhi sibheke epayipini ngangokunokwenzeka. Ukufakwa kwendawo yokuxhuma i-valve Uma isiphetho se-valve sicushiwe, isikulufu kufanele sifakwe ekujuleni kwe-valve. Uma isikulufu sijikijelwa esihlalweni sokucindezela okujulile, sizothinta ukusebenzelana okuhle kwesihlalo nesango. Uma isikulufu sijikijelwa engxenyeni engajulile, sizothinta ukuthembeka kokuvala kwelunga, futhi kulula ukwethula ukuvuza. Ngasikhathi sinye, izinto zokuvala intambo kufanele zenziwe nge-PTFE raw tape sealant, futhi qaphela ukuthi unganikezi okokuvala ku-valve cavity. Kumavalvu ANE-FLANGE END Connections, THOLA KOKUQALA UBUSO OBUXHUMANAYO BEFLANGE, NOBUSO ABANGAPHAMBI BUHLANGANISIWE UMUGQA KANYE NEMBOBO YEBHUTI IYAQONDISWE. I-VALVE flange kufanele ihambisane ne-flange yepayipi, igebe le-flange lilinganiselwe, akufanele kube nomlomo ongalungile, ukutsheka nezinye izenzakalo, i-gasket ephakathi phakathi kwama-flange kufanele ibekwe phakathi, ayikwazi ukusonteka, i-bolt kufanele ibe. i-symmetrical futhi iqiniswe ngokulinganayo. Ivimbela amandla engeziwe ayinsalela ekuphoqweni ukuthi aqinise ukuxhumana phakathi nokufakwa kwevalvu. Ngaphambi kokufakwa, udonga lwangaphakathi lwepayipi kanye nentambo yangaphandle kufanele ihlanzwe kahle ngokungcola; *** I-Burr nezinye izinto zangaphandle ezithiya ukuhamba kwe-medium futhi zingathinta ukusebenza kwemishini, zivuthele ukungcola, i-slag nezinye i-sundries epayipi ngaphambi kokuxhuma. Vimbela ukulimala endaweni yokuvala ye-valve noma uvale i-valve. Lapho ufaka i-valve exhunywe ekupheleni kwe-welding, i-welding seam emikhawulweni yomibili ye-valve ngemva kokuthungatha indawo kufanele ihlelwe kuqala, khona-ke i-valve kufanele ivulwe, futhi i-welding seam kufanele ihlanganiswe ngokuvumelana nenqubo yokushisela. Ngemuva kwe-welding, ukubukeka kanye nekhwalithi ye-weld yangaphakathi ye-weld kufanele ihlolwe ukuze kuqinisekiswe ukuthi akukho porosity, ukufakwa kwe-slag, i-crack, njll, futhi i-weld kufanele ihlolwe nge-ray noma phezu kokulawula uma kunesidingo. Ukufakwa kwamavalvu asinda kakhulu Lapho UFAKA AMAVAVA ASINDAYO (DN100), USEBENZISE IZITHULULUKO NOMA IZINTO EZIPHAKAMISAYO, INTAMBO YOKUPHAKAMISA KUFANELE IBOSHWE KUPHAKATHI NOMA Ubakaki Bevalvu, hhayi esiqwini se-valve yohlobo lwesibambo, ukuze ugweme ukulimala kwevalvu. Yiziphi izidingo ezijwayelekile zokufakwa kwe-valve? Impendulo: Izidingo ezijwayelekile zokufakwa kwe-valve, ukuphakama okufanele kokufakwa, i-valve epayipini elivundlile, isiqondiso sesiqu se-valve zimi kanje: (1) Ivalvu kufanele ibekwe endaweni okufinyeleleka kalula kuyo, kulula ukuyisebenzisa nokuyinakekela. AMAVAVAVA EMgqeni wamapayipi (njengamapayipi oya noma asuka ocingweni) kufanele ahlelwe phakathi nendawo, futhi indawo yokusebenza nesitebhisi kufanele kubhekwe. Ukuhlelwa okuhambisanayo kwe-valve epayipini, umugqa wayo ophakathi kufanele ube eduze ngangokunokwenzeka. Ibanga phakathi kwamasondo ezandla akufanele libe ngaphansi kuka-10Qmm. Ukuze kuncishiswe ibanga phakathi kwamapayipi, ama-valve anganyakaziswa. (2) Indawo yokufaka i-valve esebenza njalo kufanele kube lula ukusebenza, futhi ubude obufanele bokufakwa bube yi-1.2m ukusuka endaweni yokusebenza. Lapho ukuphakama kwesikhungo se-valve handwheel kudlula u-2m wendawo yokusebenza, inkundla kufanele isethelwe iqembu le-valve noma i-valve ngayinye esebenza njalo kanye ne-valve yokuphepha, futhi izinyathelo ezifanele kufanele zithathwe nge-valve ngayinye engasebenzi njalo. (okufana ne-sprocket, i-extension rod, iplatifomu ehambayo kanye nesitebhisi esinyakazayo, njll.). Iketango le-sprocket akufanele livimbe ukufinyelela. Amavalvu asemapayipini kanye nezinto zokusebenza ezinemithombo eyingozi akufanele afakwe phakathi nobude bekhanda lomuntu, ukuze angalimazi ikhanda, noma alimaze ngokuqondile ubuso bomuntu lapho ivalvu ivuza; (3) Ivalvu esetshenziswa empahleni yokuhlukanisa kufanele ixhunywe ngqo nomlomo wepayipi wempahla noma eduze kwempahla. I-valve ekulayini wepayipi exhunywe nempahla yendawo enobuthi eyingozi kakhulu futhi eyingozi kakhulu kufanele ixhunywe ngokuqondile nomlomo wezinto zokusebenza, futhi i-valve akufanele isebenzise iketango eliqondile; (4) Ivalvu yokwelapha ingozi efana ne-valve yamanzi omlilo, i-valve yesitimu somlilo namanye ama-valve amabili kufanele ihlakazeke, futhi ibhekelele ukusebenza ngokuphephile kwengozi. Lolu hlobo lwe-valve kufanele lubekwe ngemuva kwegumbi lokulawula. Ngemva kodonga lokuphepha, ngaphandle komnyango wefekthri, noma ngebanga elithile eliphephile ukusuka endaweni yengozi; Ukuze kuqhunyiswe ingozi, umqhubi angasebenza ngokuphepha; (5) Ngaphezu kwezidingo ezikhethekile zenqubo, i-valve epayipini elingaphansi lombhoshongo, i-reactor, isitsha esime mpo kanye nezinye izinto zokusebenza akufanele zihlelwe esiketini; (6) i-valve enqamukile yepayipi legatsha elivundlile eliholwa epayipini elomile kufanele libe eduze nomsuka wengxenye yepayipi evundlile; (7) valvu yokuhlola ikheshi kufanele ifakwe epayipini elivundlile, ivalvu yokuhlola ukuphakamisa ime mpo kufanele ifakwe epayipini eligeleza phakathi ukusuka phansi ukuya phezulu kwepayipi eliqondile. I-valve yokuhlola i-swing kufanele ifakwe ngokukhethayo epayipini elivundlile, ingafakwa futhi ekugelezeni okuphakathi kwepayipi ukusuka phansi kuya epayipini eliqondile; I-valve engezansi kufanele ifakwe ekuphakameni kokufakwa kwephampu ye-centrifugal, ingakhetha i-valve yokuhlola uvemvane; I-Pump Outlet kanye nobubanzi bepayipi elixhunyiwe alihambisani, lingakhetha i-valve yokuhlola ububanzi obuncishisiwe; (8) ibanga eliphakathi nendawo phakathi kwesondo lesandla levalvu elihlelwe eduze kweplathifomu yokusebenza kanye nonqenqema lweplathifomu yokusebenza akufanele libe likhulu kuno-450mm, lapho isiqu nesondo lesandla kunwebeka ngaphezu kweplatifomu futhi ukuphakama kungaphansi kwama-2m, akufanele kuphazamise ukusebenza nokudlula komqhubi; (9) Ivalvu yepayipi elingaphansi komhlaba kufanele ibekwe emseleni wepayipi noma emthonjeni wevalvu, futhi uma kunesidingo, induku yokwelulwa kwevalvu kufanele isethwe. I-valve yamanzi omlilo kufanele ibe namamaki asobala; (10) Ngevalvu yepayipi elivundlile, isiqondiso sesiqu singanqunywa ngohlelo olulandelayo: mpo ukuya phezulu; Izinga; Ukutshekela phezulu okungama-45; eyehlela phansi 45; Akukho mpo phansi; (11) Isiqu se-valve ukufakwa okuvundlile kwe-valve yohlobo lwenduku evulekile, lapho kuvulwa i-valve, isiqu se-valve ngeke sithinte indlela yokudlula. Ukufakwa kwe-valve yokuhlola kudinga ukunakwa (1) Indawo yokufaka, ubude, indlela yokungenisa nokuthekelisa kufanele ihlangabezane nezidingo zedizayini, qaphela indlela okugeleza ngayo okumaphakathi kufanele ihambisane nomcibisholo omakwe umzimba we-valve, ukuxhuma kufanele kuqine futhi kuqine. . (2) Ukubukeka kwevalvu kufanele kuhlolwe ngaphambi kokufakwa, futhi ipuleti legama levalvu kufanele lihambisane nezinhlinzeko zezinga likazwelonke lamanje "I-General Valve Logo" GB 12220. Ngoba ingcindezi yokusebenza inkulu kuno-1.0mpa futhi ku- ipayipi main ukunqamula indima valve, kufanele ifakwe ngaphambi kokuqina kanye nokuhlolwa okuqinile ukusebenza, ofaneleka ngemva kokusetshenziswa. Ngesikhathi sokuhlolwa kwamandla, ukucindezela kokuhlola kuyizikhathi ezingu-1.5 zokucindezela okujwayelekile, futhi ubude besikhathi abukho ngaphansi kwe-5min. Igobolondo le-valve kanye nokupakisha kuzofaneleka ngaphandle kokuvuza. Ukuhlolwa kokuqina, ingcindezi yokuhlola izikhathi eziyi-1.1 zokucindezela okuzisholo; Ubude besikhathi sokuhlolwa buhambisana nezidingo ze-GB 50243. (3) Ungayenzi i-valve yokuhlola isisindo sebhere epayipini, i-valve yokuhlola enkulu (i-AETV yendlela eyodwa) : kufanele ** * isekelwe, ukuze ikwazi akuthintwa ukucindezela okukhiqizwa uhlelo lwamapayipi.