Ivalve yogcino lwemihla ngemihla ephambili yokusebenza kobugcisa

Ivalve yogcino lwemihla ngemihla engundoqo umsebenzi wobugcisa Ugcino lwemihla ngemihla 1. Ingqalelo kufuneka ihlawulwe kwindawo yokugcina isivalo. Kufuneka igcinwe kwigumbi elomileyo nelingena umoya kwaye livalwe kuzo zombini iziphelo zejelo. I-2, i-valve kufuneka ihlolwe rhoqo, kwaye ikhuphe ukungcola kuyo, i-oyile ye-anti-rust igcobe phezu kwayo. 3. Emva kokufakwa kunye nokusetyenziswa kwe-valve, kufuneka ilungiswe rhoqo ukuze kuqinisekiswe umsebenzi wayo oqhelekileyo. 4. Khangela ukuba umphezulu wokutywina wevalve ugugile kwaye ulungise okanye uwutshintshe ngokwemeko. I-5, khangela intambo ye-trapezoidal yokugqoka i-stem kunye ne-stem nut, nokuba ukupakisha kuphelelwe yisikhathi kwaye akuvumelekile, kwaye uqhube ukutshintshwa okufunekayo. I-6, ukusebenza kokutywinwa kwevalve kufuneka kuhlolwe ukuqinisekisa ukusebenza kwayo. 7. I-valve esebenzayo kufuneka ihambelane, i-bolts kwi-flange kunye ne-bracket igqityiwe, imicu ayibonakali, kwaye akukho nto yokukhulula. I-8, ukuba ivili lesandla lilahlekile, kufuneka lilungele ngexesha, kwaye alikwazi ukutshintshwa sisitshixo esilungelelanisiweyo. 9. Ukupakisha indlala akuvumelekanga ukuba ijike okanye ngaphandle kokukhutshwa kwangaphambili. I-10, ukuba indawo yokusetyenziswa kwevalve imbi kakhulu, isengozini yemvula, ikhephu, uthuli, isanti kunye nolunye ungcoliseko lokungcola, kufuneka ifakwe kwisigqubuthelo sokukhusela isiqu. I-11, ivalve kwisikali kufuneka igcinwe iphelele, ichanekile, icacile, isitywina sevalve, ikepusi. I-12, i-insulation jacket akufanele igxume, iqhekeke. I-13, ekusebenzeni kwevalve, gwema ukubetha kuyo, okanye ukuxhasa izinto ezinzima, njl. njl. Amanyathelo okucoca Amacandelo e-valve kufuneka ahambe ngale nkqubo ilandelayo ngaphambi kokuhlanganisana: 1, ngokweemfuno zokucubungula, ezinye iindawo kufuneka zenze unyango lokupolisha, umphezulu awunakuba ne-process burr, njl.; 2. Onke amalungu athotyiwe; I-3, i-pickling passivation emva kokunciphisa, i-arhente yokucoca ayinayo i-phosphorus; I-4, i-pickling ehlanjululwe ngamanzi acocekileyo emva kokuhlamba, ayikwazi ukuba ne-residu yeziyobisi, iinxalenye ze-carbon steel zishiya eli nyathelo; 5, enye nenxalenye enye ngelaphu non-elukiweyo owomileyo, ayikwazi ukugcina iinxalenye vulu ngocingo umphezulu, okanye nge nitrogen ecocekileyo owomileyo; 6. Sula iinxalenye nganye nganye ngelaphu elingalukwanga okanye iphepha lokucoca elichanekileyo elingcoliswe ngotywala obucocekileyo de kungabikho mbala umdaka. Umsebenzi ophambili wobugcisa weendawo zokutywina zevalve yevalve yokukwazi ukuthintela ukuvuza kweendaba, yeyona nto ibalulekileyo izalathisi zokusebenza kobugcisa bevalve. Kukho iindawo ezintathu zokutywina zevalve: uqhagamshelwano phakathi kwendawo yokuvula kunye nokuvala kunye nesihlalo sevalve indawo emibini yokutywina; Ukupakisha kunye ne-valve stem kunye nokupakisha ibhokisi ehambelanayo; Ilungu lomzimba kwibhonethi. Enye yokuvuza yangaphambili kuthiwa ukuvuza kwangaphakathi, ngokuqhelekileyo kuthiwa i-lax, iya kuchaphazela ukukwazi kwevalve ukunqumla i-medium. Umsebenzi ongundoqo wobugcisa wevalve Okokuqala, ukusebenza kokutywinwa kwevalve Kubhekiselele kwiindawo zokutywina zevalve yokukwazi ukuthintela ukuvuza kwemithombo yeendaba, yeyona nto ibalulekileyo izalathisi zokusebenza kobugcisa bevalve. Kukho iindawo ezintathu zokutywina zevalve: uqhagamshelwano phakathi kwendawo yokuvula kunye nokuvala kunye nesihlalo sevalve indawo emibini yokutywina; Ukupakisha kunye ne-valve stem kunye nokupakisha ibhokisi ehambelanayo; Ilungu lomzimba kwibhonethi. Enye yokuvuza yangaphambili kuthiwa ukuvuza kwangaphakathi, ngokuqhelekileyo kuthiwa i-lax, iya kuchaphazela ukukwazi kwevalve ukunqumla i-medium. Kwiklasi yevalve yebhloko, ukuvuza kwangaphakathi akuvumelekanga. Oku kuvuza kubini kokugqibela kubizwa ngokuba kukuvuza kwangaphandle, oko kukuthi, ukuvuza kwemidiya ukusuka kwivalve ukuya kwivalve ngaphandle. Ukuvuza kuya kubangela ilahleko yezinto eziphathekayo, ukungcoliseka kwendalo, okunzulu kuya kubangela iingozi. Kwimidiya enokutsha, eqhumayo, eyityhefu okanye ene-radioactive, ukuvuza akuvumelekanga, ngoko ke ivalve kufuneka ibe nokusebenza okuthembekileyo kokutywinwa. Ababini, i-flow medium I-flow medium ibhekisela kwi-medium nge-valve iya kuvelisa ilahleko yoxinzelelo (umahluko woxinzelelo ngaphambi nangemva kwevalve), oko kukuthi, i-valve inokumelana okuthile nokuhamba kwe-medium, medium ukunqoba ukuchasana. yevalve iya kudla isixa esithile samandla. Ukusuka kuqwalaselo logcino lwamandla, uyilo kunye nokwenziwa kweevalvu ukunciphisa ukuxhathisa kwevalve kwindlela yokuqukuqela kangangoko kunokwenzeka. Isithathu, amandla okuvula kunye nokuvala kunye nokuvula kunye nomzuzu wokuvala Ukuvula kunye nokuvala amandla kunye ne-torque yimikhosi okanye i-torques ekufuneka isetyenziswe ukuvula okanye ukuvala i-valve. Vala ivalve, imfuneko yokwenza indawo evulekileyo-evaliweyo kwaye uthumele ifom yokutywina phakathi koxinzelelo lwangaphezulu kokutywinwa komphezulu, kodwa kwakhona ukoyisa phakathi kwesiqu kunye nokupakisha, isiqu sevalve kunye naphakathi kwemisonto yentonga, intonga yevalve isiphelo esithwala ingxabano kunye ezinye iindawo zamandla okubetha, kwaye ngoko ke kufuneka zisebenzise amandla okuvala kunye nomzuzu osondeleyo, kwinkqubo yokuvula nokuvala, i-valve iyadingeka ekuvuleni nasekuvaleni amandla kunye nokutshintsha kwe-torque evulekileyo, ixabiso layo eliphezulu lisekupheleni umzuzu ovaliweyo okanye ekuqaleni komzuzu ovulekileyo. Iivalvu kufuneka ziyilwe kwaye zenziwe ukunciphisa amandla okuvala kunye ne-torque yokuvala. Isine, isantya sokuvula nokuvala Isantya sokuvula nokuvala sichazwa njengexesha elifunekayo ukugqiba umsebenzi wokuvula okanye wokuvala ivalve. Ukuvulwa kwevalve ngokubanzi kunye nesantya sokuvala ayizizo iimfuno ezingqongqo, kodwa ezinye iimeko zineemfuno ezikhethekileyo zokuvula nokuvala isantya, njengezinye iimfuno zokuvula okanye ukuvala ngokukhawuleza, xa kukho iingozi, ezinye iimfuno zokuvalwa okucothayo, kwimeko yogwayimbo lwamanzi, ekufuneka ithathelwe ingqalelo xa ukhetha uhlobo lwevalvu. Isihlanu, ubuntununtunu bentshukumo kunye nokuthembeka Isenzo sobuntununtunu kunye nokuthembeka kubhekisa kwivalvu yotshintsho lweparamitha ephakathi, yenza impendulo ehambelanayo kwinqanaba lovakalelo. Kwi-valve ye-throttle, i-valve yokunciphisa uxinzelelo, i-valve elawulayo kunye nezinye iivalve ezisetyenziselwa ukulungelelanisa imilinganiselo ye-medium kunye ne-valve yokukhusela, i-valve yomgibe kunye nezinye iivalve ezinemisebenzi ethile, uvakalelo lwayo olusebenzayo kunye nokuthembeka kubaluleke kakhulu izibonakaliso zokusebenza zobugcisa. Isithandathu, ubomi benkonzo Ubomi benkonzo bubhekiselele ekuhlalaneni kwevalve, isalathiso esibalulekileyo sokusebenza kwevalve, kwaye inokubaluleka okukhulu kwezoqoqosho. Ngokuqhelekileyo ukwenzela ukuba kuqinisekiswe iimfuno zokutywinwa kwenani lamaxesha okuvakalisa, kunokubonakaliswa ngokusetyenziswa kwexesha.