Uhlalutyo lokhuseleko lweshishini lepetrochemical elixhomekeke kwimigangatho ye-American cast cast steel globe valves

Uhlalutyo lokhuseleko lweshishini lepetrochemical elixhomekeke kwimigangatho ye-American cast cast steel globe valves

Kwishishini lepetrochemical, ukhuseleko yeyona nto iphambili yokuqwalaselwa koyilo kunye nokusebenza. Izivalo zeglobhu zentsimbi zaseMelika eziphuhliswe nguMgangatho weSizwe waseMelika (ANSI) kunye neAmerican Petroleum Institute (API) ziye zaba zezona mveliso zikhethwayo kwishishini ngenxa yeempawu zazo ezibalaseleyo zokhuseleko. Eli nqaku liza kuphonononga ukusetyenziswa kwezi valves kwishishini lepetrochemical kunye nohlalutyo lwabo lokhuseleko.

Imvelaphi yesicelo

Ulwelo olubandakanyekayo kushishino lwepetrochemical luhlala luneempawu ezinjengokutsha, ugqabhuko-dubulo, kunye nokuhlwa okuqinileyo. Ngoko ke, kuyafuneka ukuba iivalve kwiinkqubo zemibhobho kufuneka zibe nokuthembeka okuphezulu kunye nokuqina. Iivalvu zeglowubhu zentsimbi ezisemgangathweni zaseMelika zisetyenziswa ngokubanzi kwiindawo zokucokisa, kwizityalo zemichiza, kumasimi e-oyile, nakwezinye iindawo ukulawula ukuhamba kwemithombo yeendaba njengeoyile ekrwada, igesi yendalo, kunye nemathiriyeli yemichiza.

Iimpawu zokhuseleko

1. Izinto eziphathekayo kunye namandla: Ngokwemigaqo ye-ASTM, izinto ezisetyenziselwa i-American standard cast cast steel globe valves ziyakwazi ukumelana neendawo zokusebenza ezigqithisileyo ezifana nokushisa okuphezulu, uxinzelelo oluphezulu, kunye nokubola okunamandla, ukuqinisekisa ukuthembeka kunye nokuzinza kwevalve phantsi kweemeko ezinzima.
2. Ukusebenza kokutywina: I-valve yenzelwe indlela yokuvala efanelekileyo yokuqinisekisa isiphumo esihle sokutywinwa kwimeko evaliweyo, ukuthintela ngokufanelekileyo ukuvuza kweendaba ezinobungozi kunye nokunciphisa umngcipheko womlilo kunye nokuqhuma.
3. Uyilo lokukhuselwa komlilo: Ezinye iivalve zeglobhu zensimbi ezisemgangathweni zaseMelika ziyilwe kunye nezakhiwo zokhuseleko lomlilo ngokwemigangatho ye-API 607, enokugcina amandla okutywina ixesha elithile nakwimimandla yomlilo wobushushu obuphezulu, ukubonelela ngexesha elixabisekileyo lokukhutshwa ngokukhuselekileyo kwimeko yongxamiseko. iimeko.
4. Ukukhuselwa kwe-Blowout: Kumajelo e-high-pressure gas, i-valve ixhotyiswe ngesixhobo sokunqanda ukuvuthela ukuphepha iingozi zokhuseleko ezibangelwa yi-valve stem etyhalwa ngaphandle ngexesha lokunyuka koxinzelelo olukhawulezayo.
5. Ulondolozo olufanelekileyo: Uyilo lwe-American standard cast iron globe valves kulula ukuhlola nokugcina, ukunceda ukuchonga iingxaki ezinokubakho ngexesha elifanelekileyo kunye nokuzilungisa, ukunciphisa ukwenzeka kweengozi.

Uvavanyo lomsebenzi wokhuseleko

1. Uvavanyo loxinzelelo: Ngexesha lenkqubo yokuvelisa, i-valve nganye ifumana uvavanyo oluqinileyo loxinzelelo ukuze kuqinisekiswe uxinzelelo oluphezulu lokusebenza kwaye iqinisekise ukuba ayisebenzi kakubi ngenxa yokugqithisa ubuninzi boxinzelelo ekusebenziseni ngokwenene.
2. Uvavanyo lokuvuza: Yenza uvavanyo olungqongqo lokuvuza kwivalve ukuqinisekisa ukuba ukusebenza kwayo kokutywinwa kuhlangabezana neemfuno ezingqongqo kumanqanaba okuvuza kwizicelo zoshishino.
3. Uvavanyo lokumelana nomlilo: Ngovavanyo oluthile oluqhelekileyo lokumelana nomlilo, iqinisekisa ukuba i-valve inokugcina ukusebenza kwayo okanye imeko evaliweyo ixesha elithile xa kwenzeka umlilo, ukubonelela ngamathuba okujongana neemeko ezingxamisekileyo.
4. Ukulawulwa komjikelezo wobomi: Ngokuphonononga ubomi benkonzo kunye nokugcinwa kwamaxesha ngamaxesha, iingozi ezinokubakho zokhuseleko zinokuqikelelwa kwaye zigwenywe, ngaloo ndlela ziqinisekisa ukusebenza okukhuselekileyo kwexesha elide.

Isishwankathelo, kwishishini lepetrochemical, i-American standard cast cast steel globe valves ibe yinto ephambili ekuqinisekiseni ukhuseleko lweshishini ngenxa yoyilo oluluqilima olusemgangathweni, ukusebenza kokutywina okugqwesileyo, kunye nomlilo okhethekileyo kunye nokuvuthela imisebenzi yokukhusela. Ngokugcinwa rhoqo kunye nokulawula, ezi zivalo aziboneleli kuphela ukuthembeka ekulawuleni inkqubo, kodwa zibonelela ngeziqinisekiso eziqinileyo zokhuseleko lwemveliso kunye nabasebenzi kulo lonke ishishini. Ngokuqhubela phambili kobuchwepheshe, ukusebenza kokhuseleko kwezi zivalo kuya kuphuculwa ngakumbi kwixesha elizayo ukuhlangabezana nemfuno ekhulayo yokhuseleko lwamashishini.