Indlela yokufaka kunye nokulawula ivalve ye-oyile kunye negesi yegesi ukuvuza kwangaphakathi isizathu kunye nesigwebo

Indlela yokufaka kunye nokulawula ivalve ye-oyile kunye negesi yegesi ukuvuza kwangaphakathi isizathu kunye nesigwebo

I-valve iyinxalenye ebalulekileyo yokulawula kwindlela yokuhambisa umbane wepayipi, eneentlobo ezahlukeneyo, iinkcukacha, izinto kunye neendlela zokudibanisa. KUKHO IMICELI-MNGENI EKULAWULO LOFANKO LWEVALVVU, ELI phepha lazisa ngokufutshane ezona ndawo ziphambili zolawulo lwekhonkco ngalinye kufakelo lwevalvu yombhobho, kwaye libonelela ngereferensi yolawulo lofakelo lwesivalo sombhobho.
I-valve iyinxalenye ebalulekileyo yokulawula kwindlela yokuhambisa umbane wepayipi, eneentlobo ezahlukeneyo, iinkcukacha, izinto kunye neendlela zokudibanisa. KUKHO IMICELI-MNGENI EKULAWULO LOFANKO LWEVALVVU, ELI phepha lazisa ngokufutshane ezona ndawo ziphambili zolawulo lwekhonkco ngalinye kufakelo lwevalvu yombhobho, kwaye libonelela ngereferensi yolawulo lofakelo lwesivalo sombhobho.
Ivalve yombhobho njengenxalenye ebalulekileyo yenkqubo yenkqubo. Umgangatho wofakelo lwevalve yombhobho umisela ngokuthe ngqo ukufezekiswa okulungileyo kwemisebenzi enxulumene nenkqubo yenkqubo. Awona makhonkco olawulo aphambili olawulo lwayo ngolu hlobo lulandelayo:
1, ukuhlolwa kwevalve kunye nokwamkelwa
1.1 Ukuhlolwa kwenkangeleko yevalvu: akukho pores, trakoma, iintanda kunye nomhlwa kumzimba wevalvu; Isiqu asigobi, isiganeko somhlwa, intambo yesikhondo igudile, icocekile ngaphandle kocingo olwaphukileyo; Idlala ngokulungileyo, ukujikeleza okuguquguqukayo kwesondo lesandla; Umphezulu wokutywina we-Flange ngaphandle kwemikrwelo, iipockmarks, njl.; Uqhagamshelo lomsonto kwimeko entle; Umjelo we-welding ofanelekileyo. Inombolo yebit yeValve, uxinzelelo kunye nezinye iiparamitha zihambelana noyilo.
1.2 Ukuhlolwa kwamaxwebhu: Amaxwebhu abandakanya ikakhulu: isicwangciso somgangatho, ubungqina bezinto eziphathekayo, imizobo eyakhiweyo, iirekhodi zovavanyo, iincwadana zokugcinwa, iimfuno zokugcina, kunye nesatifikethi sokuthotyelwa. Izivalo ezingahambelaniyo ziya kuba namaxwebhu ahambelanayo okukhutshwa kwemiqathango kunye neepleyiti zokuzazisa zequmrhu ezingangqinelaniyo.
2. Iimfuno zokugcina i-valve kunye nokugcinwa kwayo
Gcina i-valve yokungena kunye ne-outlet ivaliwe kwaye ubeke i-desiccant, ithathe indawo rhoqo ngokwemiyalelo ye-desiccant. Qinisekisa iqondo lobushushu, ukufuma kunye neemfuno zokusingqongileyo zogcino ngokwamaxwebhu ogcino lwevalvu. Kwiivalvu zensimbi engenasici, qaphela ukuba ukhethe izinto zokusonga ezingeyo-halogen. Iivalvu kufuneka zihlolwe kwaye zigcinwe rhoqo ngexesha lokugcinwa.
3, uvavanyo loxinzelelo lwevalvu
Ngenxa yokuba i-valve yenziwe iqokobhe, isihlalo kunye novavanyo lokuvala uxinzelelo ngaphambi kokushiya umzi-mveliso, yenza kuphela uvavanyo lokuvala lwevalve kwisiza. Ngomda kunye nomlinganiselo wokuqinisekiswa, umgangatho wesizwe we-GB50184-2011 uchaza umlinganiselo wovavanyo loxinzelelo lwentsimi, imigangatho yangaphandle ayinayo imfuneko. Ngokuqhelekileyo umniniyo uzimisele ngokujonga umgangatho kunye nokusetyenziswa kwamava kwinqanaba lokuvelisa i-valve, kwaye i-valve ngokubanzi kufuneka ivalwe nge-100% kwintsimi.
3.1 Iimfuneko zovavanyo oluphakathi: indawo yokuvavanya ivalvu ngamanzi; Sebenzisa amanqanaba ahlukeneyo omgangatho wamanzi ngokococeko lwenkqubo; Nangona kunjalo, xa i-valve esebenzayo iyigesi, i-medium yokuvavanya ikhethwa ukusebenzisa umoya owomileyo ongenawo ioli okanye i-nitrogen, kwaye inokutshintshwa ngoxinzelelo lwamanzi.
3.2 Ukuzimisela koxinzelelo lovavanyo lokuvala: Iimfuno zokuvala uxinzelelo lovavanyo lwee-valve kwi-GB/T13927-2008 kunye ne-ASME B16.34 kunye ne-MSS-SP-61 ziyafana. UXINEZELEKO LWE-HYDROSTATIC TEST NGU-1.1 AMAXESHA OKUREYIWEYO UXINEZELEKO LOHLANGANO LOXINEZELEKO lwe-valve ngo-100OF, OKANYE UVAVANYO LWE-PRESSUSE NGAPHANTSI KWE-80psi LUNOKUSETYENZISWA endaweni yoko. Xa i-valve NAMEplate IMAKIWE NGOMHLUKO OMKHULU WOMSEBENZI WOKUSEBENZA OKANYE UMSEBENZI WOKUSEBENZA wevalve ayifanelekanga uvavanyo loxinzelelo oluphezulu loxinzelelo, Uxinzelelo lovavanyo lunokuqhutywa ngokwamaxesha angama-1.1 omehluko omkhulu woxinzelelo oluphawulwe ngoxinzelelo iplate yevalvu.
3.3 Ukuvavanywa kweziphumo zovavanyo: Inkcazo yovavanyo lokuvala ivalve ifuna kuphela uvavanyo oluhlala ixesha elifutshane, kwaye akukho mfuneko ikhethekileyo yokuvala uvavanyo olungekho ngaphantsi kwemizuzu emi-5 ekusebenzeni ngokwenene. I-valve evalwe ngezinto eziguquguqukayo ayiyi kuba nokuvuza okubonakalayo kwaye akukho xinzelelo loxinzelelo lwe-gauge yoxinzelelo ngexesha lokubamba uxinzelelo. Kumacandelo oYilo lwevalvu EVUMELA UKUVUZA, I-USSS IYAKUMLINGANISA NGOKUNQOPHELELE UKUVUZA NGEYITITHI NGEXESHA NGEYITITHI OKANYE ISEBENZISE INANI LAMAQHINGA OKANYE AMAQHWA AMANZI NJENGOKO KUCHAZWA KUXINEZELO lwe-MSS-SP-61. Ukuvuza IS kunxulumene nedayamitha yegama levalve. Imfuno yokuvuza yomgangatho wesizwe iyafana naleyo yomgangatho waseMelika.
I-1 2 ngaphakathi kwe-oyile kunye negesi yombhobho we-valve yokuvuza isizathu kunye nesigwebo sidlala i-medium truncated ekusebenzeni kwevalve kwimibhobho yeoli kunye negesi, indlela yokuhamba yokusabalalisa okuphakathi, indima ebalulekileyo ekulawuleni uxinzelelo, i-valve * * imveliso enefuthe eliqhelekileyo. iingxaki zokhuseleko kukuvuza, ukuvuza kwevalve ngaphandle kwezi meko zimbini kukuvuza kwevalve (ukuvuza) kunye nokuvuza kwangaphakathi (ukuvuza). Ukuba ayifumanekanga kwaye iphathwa ngexesha, kuya kuba neengozi ezinkulu zokhuseleko, ezinokuchaphazela ukhuseleko lwe-oyile kunye negesi yokuthutha ukuveliswa kunye nokusebenza kunye nokugcinwa kwezixhobo kunye nokulungiswa. Xa ivalve ivuza, unokumamela indawo, khangela ukuba kukho ukuvuza kweendaba okucacileyo kunye nezinye izinto ezifunyanisiweyo, kodwa unokusebenzisa irhasi etshayo.
I-valve idlala indima ebalulekileyo ekusebenzeni kwemibhobho yeoli kunye negesi, njengokunqumla i-medium, ukusabalalisa i-flow direction of medium, ukulawula uxinzelelo kunye nokunye. Ingxaki eqhelekileyo echaphazela ukhuseleko lwevalve kukuvuza. Iimeko ezimbini zokuvuza kwevalve kukuvuza kwangaphandle kwevalve (ekubhekiswa kuyo njengokuvuza kwangaphandle) kunye nokuvuza kwangaphakathi (okubizwa ngokuba kukuvuza kwangaphakathi). Ukuba ayifumanekanga kwaye iphathwa ngexesha, kuya kuba neengozi ezinkulu zokhuseleko, ezinokuchaphazela ukhuseleko lwe-oyile kunye negesi yokuthutha ukuveliswa kunye nokusebenza kunye nokugcinwa kwezixhobo kunye nokulungiswa. Xa ivalve ivuza, unokumamela isandi kwindawo leyo, ujonge ukuba kukho ukuvuza kwemithombo yeendaba okucacileyo kunye nezinye izinto ezifunyanisiweyo, kodwa unokusebenzisa isixhobo sokubona igesi evuthayo okanye isixhobo sokubona ukuvuza ukuze sihlolwe kwaye sibhaqwe. Emva kokuvuza kwevalve, ukufihla ngokubanzi kunamandla, akufumaneki ngexesha, kulula ukwenzeka ukunyanzeliswa koxinzelelo, ungcoliseko lweoyile kunye nezinye iingozi zemveliso yokhuseleko, njengokuvela kweendaba ezahlukeneyo ze-inter-string, uphahla lwetanki yokugcina ioyile, izixhobo ezisezantsi azikwazi ukulungiswa, njl., iziphumo zinzima.
Isizathu sokuvuza kwangaphakathi kwevalve
1.1 Ingxaki yomda wokutshintsha
Esona sizathu sibalulekileyo esikhokelela ekuvuzeni kwevalvu kukuba ulungelelwaniso lomda wokutshintsha alukho endaweni. INYATHELO lokuqala LOKUQINISEKISA ukuvuza kwevalve kukukhangela ukuba isitshixo sevalve sikhona na, ngakumbi ukubona ukuba ivalve inokuvalwa ngokupheleleyo endaweni yayo. Uninzi lweevalvu zebhola kwindawo epheleleyo, iindawo zokuvala ibhola kunye nomzimba wevalve kufuneka zihluke kuphela i-2 ~ 3 degrees, iya kubangela ukuvuza kwendawo. Ngenxa yokuba i-valve yeplagi iyancipha ububanzi, ngoko ke iindawo zokuvala ngokubanzi kunye nokwahlukana komzimba we-valve ye-10-15 degrees kuya kubangela ukuvuza kwangaphakathi. Ngokubanzi kubangelwa ukuba umda wokutshintsha ivalvu ungabikho ikakhulu ubangelwa zezi meko zilandelayo:
(1) Isivalo sifakwe kumzi-mveliso okanye kwinkqubo yothutho kunye nokulayishwa kunye nokothula, okukhokelela ekubeni isikhondo sevalve siqhagamshelwe izincedisi kunye nendibano yomkhono wevalve drive Ukushukuma kwe-engile okukhokelela ekutenxekeni komda okukhokelela ekuvuzeni kwangaphakathi;
(2) ukudibanisa ivalve yevalve yeebloko zokuseta iibhloko, ngokunjalo nokungcwatywa ngenxa yesiqu eside, njengoko ukukhula kokusetyenziswa kwexesha, umhlwa wesikhondo sevalve kunye nokunye ukungcola kwimo esezantsi yeseti ye, zibe phakathi kwesikhondo sevalve kunye neebhloko zokuseta ivalve ezifumbe ubumdaka obuthile obunjengothuli, isanti, umhlwa, ipeyinti, ezenziwe kwivalve evala ivalve ayinakufakwa endaweni yokuvuza;
(3) Kwi-activator engazange igcinwe ixesha elide, ngenxa yokuwohloka kwegrisi kwibhokisi yegiya ibe ziibhloko ezinzima, ukuqokeleleka komhlwa, iibholiti ezikhululekileyo kunye nezinye izizathu, oko kuya kubangela ukutenxa komda kwaye kubangele ivalve ngaphakathi. ukuvuza;
(4) Ivalve ene-actuator iseti indawo yokuvala epheleleyo ihambele phambili ngakumbi, kwivalve ayivalwanga ngokupheleleyo ukuze kumiswe isenzo, okukhokelela kumda ongachanekanga kwaye kubangele ukuvuza kwangaphakathi;
(5) Isivalo sikhutshwa ngokungaqhelekanga, kwaye ukungcola kuqokelelana kwigumbi lesivalo, okukhokelela ekubeni isivalo singakwazi ukuvalwa ngokupheleleyo endaweni kwaye kubangele ukuvuza kwangaphakathi;
(6) Ngethuba lokusebenza, ukungcola kwi-tube kungena phakathi komzimba we-valve kunye neendawo zokuvala, okubangelwa ukuba i-valve ayikwazi ukuvalwa ngokupheleleyo kwindawo.
1.2 Ukungcola kukho kwivalve
Omnye unobangela wokuvuza kwevalvu kuhlala kukho ukungcola kwivalve. Oku kungcola kusenokuba yintlabathi, amatye, irusi, i-welding slag, njl. Ezi ngxaki zibangelwa ikakhulu zezi zizathu zilandelayo:
(1) Emva kovavanyo lwehydraulic lomenzi wevalvu, amanzi akwisixhobo awakhutshwa, okanye amanzi akomiswanga, i-anti-corrosive, i-oyile yokuthambisa kunye namanye amanyathelo okukhusela, okukhokelela ekudlekeni kwangaphakathi kwevalve kwaye kubangele ukuvuza kwangaphakathi;
(2) Isiza sokwakha asikhuselekanga kakuhle kumacala omabini evalve phambi kofakelo lwesivalo, nto leyo ekhokelela kwintlenga, imvula, amatye kunye nobunye ukungcola kumjelo phakathi kwesitywina sesihlalo sevalve kunye nomzimba wevalve, isihlalo “O ” i-ring okanye i-spring groove, ebangela ukuvuza kwangaphakathi.
(3) Ngexesha lenkqubo yokwakha, ukusebenza akuhambelani nemigaqo, kwaye iinkcukacha zokwakha azihlawulwanga. Izixhobo zabasebenzi, ii-electrodes ze-welding kunye nezinye i-sundries kwindawo yokwakha zingena kwi-valve, ebangela ukuvuza kwevalve yangaphakathi.
(4) Amaxesha amaninzi isenzo sevalve, udaka okanye ukungcola kuqokeleleka kumphezulu wokutywina, ukwenza umqamelo oqinileyo okanye umzantsi wokuqokelelana kwevalve yesango kuninzi kakhulu, akunakuvalwa endaweni, okukhokelela ekuvuzeni kwangaphakathi.
(5) Phambi nasemva kofakelo lwevalvu, igrisi evunyiweyo ayitofwanga kwangethuba, kwaye ukungcola kungena kumjelo phakathi kwesitywina sesihlalo sevalvu kunye nomzimba wevalvu, iringi “O” yesitulo sevalve okanye igroove yasentwasahlobo. , okubangela ukuvuza kwangaphakathi.
(6) Ihagu ayigcinwanga phambi nasemva kwayo, nto leyo ekhokelela ekuqokeleleni kokungcola okanye ukungena emseleni emva kwesihlalo, okukhokelela ekutywinweni kakubi.
(4) Ivalve evalwe ngegrisi yokutywina ayincediswa kwangethuba, nto leyo ekhokelela kumlinganiselo onganelanga wegrisi yokutywina ukwenza ukuvuza kwangaphakathi.