Xa abathengi bethenga iivalve zebhabhathane eziphindwe kathathu, badla ngokubhekisa kwiintlobo ezimbini zezakhiwo, enye iyintsimbi ukuya kwisitulo sentsimbi kwaye enye luhlobo lwe-multi-layer;zinezakhiwo ezahlukeneyo kwaye amaxabiso nawo ahluke kakhulu.Okulandelayo, masithethe ngomahluko phakathi kweevalvu zebhabhathane ezihlala zonke-zentsimbi kunye neevalvu zamabhabhathane zokutywina.
1. Iimpawu zentsimbi ukuya kwisihlalo sentsimbi iivalve zebhabhathane
Intsimbi ukuya kwisihlalo sentsimbi iivalvu zebhabhathane yivalve yebhabhathane enesakhiwo esilula sokutywina, esibandakanya umzimba wevalvu, ipleyiti yevalvu, ivalufa yevalve kunye neringi yentsimbi epheleleyo yokutywina.Inesakhiwo esincinci kunye nokuvuleka okuguquguqukayo kunye nokuvala, ngoko isetyenziswa ngokubanzi kwiimeko ezinoxinzelelo oluphantsi, ukuhamba okuncinci, ukushisa okuphezulu kunye nothuli oluncinci.
Emva kokuba ipleyiti yevalve ivuliwe, isihlalo sevalve somzimba wevalvu sikufutshane neringi yokutywina.Xa ipleyiti yevalve ivaliwe ngokuthe ngqo kulwelo, amasuntswana aphakathi kulwelo makhulu kakhulu okanye aqine kakhulu, nto leyo eya kubangela ukukhuhlana kwisihlalo sevalve okanye umsesane wokutywina, okubangela Ukonakala kwesitulo sevalve okanye umsesane wokutywina uthintela ukutywinwa okupheleleyo.Oku kukwasinye seentsilelo zetsimbi kwi-valve ye-butterfly isihlalo sentsimbi, kuba ukutshintsha rhoqo kuya kubangela ukukhuhlana okwandisiweyo kwaye ngaloo ndlela kuchaphazele ubomi benkonzo.
2. Iimpawu ze-multi-layer triple eccentric butterfly valve
Ivalve yebhabhathane enamaleko amaninzi yivalve yebhabhathane enesakhiwo sokutywina esintsonkothileyo.Umsesane wokutywina udla ngokuqulunqwa ngamaleya amabini okanye ngaphezulu, aneeleya zokutywina ezininzi embindini.Umzimba wevalve kunye nepleyiti yevalvu yevalve yebhabhathane enamaleko amaninzi idityaniswe ngokwemaleko.Uluhlu ngalunye lunesakhiwo sokutywinwa esizimeleyo, esinokunciphisa ngokufanelekileyo umngcipheko wokuvuza.Ngenxa yokuba i-multi-layer seal, nokuba kukho amaqhekeza aphakathi ngexesha lokuvala, ngokude nje ukuba zonke i-interlayers zingonakaliswa, nokuba enye ingqimba ishiywe ingonakaliswa, ukusebenza kokutywinwa akuyi kuchaphazeleka.
Iivalvu zebhabhathane ezinomaleko ohlukeneyo zidla ngokusetyenziswa kwiimeko zoxinzelelo oluphezulu kunye neemeko zokuqukuqela okukhulu, njengeoyile ekrwada, igesi yendalo, amanzi kunye neminye imibhobho yemizi-mveliso.Ubushushu bokusebenza buphakathi kwe-29 degrees kunye ne-425 degrees.Izinto ze-WCB lolona khetho lungabizi kakhulu.
3. Umahluko phakathi kwentsimbi ukuya kwiivalvu zebhabhathane zentsimbi kunye neevalve zebhabhathane ezinomaleko amaninzi
1) ukufana kwezi ntlobo zimbini zebhabhathane
Zombiniintsimbi ukuya kwivalve yebhabhathane yentsimbikunye nevalve yebhabhathane enamaleko amaninzi inokufezekisa ukutywinwa kwendlela enye okanye ukutywinwa kwendlela ezimbini.Ngokweemfuno zomsebenzisi, iiseti enye okanye ezingaphezulu zamakhonkco okutywina angatshintshwa ukuze kube lula ukutshintshwa kwimeko yokusetyenziswa ngendlela engafanelekanga, kwaye ziyilelwe ukuba zibe ziifom zokutywina ezineendlela ezimbini ezishenxisekayo.Inzuzo yolu yilo kukuba isihlalo sevalve kunye nendandatho yokutywina inokutshintshwa kwi-intanethi, kwaye izixhobo azidingi ukuba zingaxhunyiwe kwi-intanethi ukuze zigcinwe.Kwangaxeshanye, bonke banenzuzo yokuba baqina ngakumbi.
2) iyantlukwano phakathi kwezi ntlobo zimbini zebhabhathane
Umahluko omkhulu ulele kwisakhiwo kunye neemeko zesicelo.
① umahluko wesakhiwo
Ivalve yebhabhathane enamaleko amaninzi
· Ubume bevalve yebhabhathane ye-multi-layer yimfumba yamaphepha esinyithi kunye negraphite, oku kuthetha ukuba umsesane wokutywina udla ngokuqulunqwa ngamaleko amabini okanye ngaphezulu, kunye neengqimba zokutywina ezininzi phakathi.Umzimba wevalve kunye nepleyiti yevalve yevalve yebhabhathane enamaleko amaninzi idityaniswe ngokwamaleko, kwaye umaleko ngamnye unesakhiwo sokutywina esizimeleyo.
· Iperi yokutywina ye-all-metal two-way sealing butterfly valve, oko kukuthi, iringi yokutywina kunye nesihlalo sevalvu, zenziwe ngesinyithi esinesinyithi.Umsesane wokutywina unokuba ngaphezulu okanye utshizwe nge-welded nge-alloys ezahlukeneyo zokunxiba kunye nokumelana nobushushu.
Zonke izihlalo zentsimbi ivelufa butterfly
② Isicelo
I-Metal ukuya kwi-valve butterfly valve ifanelekile kuxinzelelo oluphantsi, ukuhamba okuncinci, kunye neemeko eziphezulu zokushisa;ivalve yebhabhathane enamaleko amaninzi inesakhiwo sokutywina esine-multi-layer, esinokuthi sinciphise ngempumelelo umngcipheko wokuvuza.
4. Isinyithi ukuya kwintsimbi yokutywina ukusebenza kweevalve zebhabhathane kunye ne-multi-layer butterfly valves
Ngokomgangatho we-API598, i-valve ye-butterfly ene-contact yensimbi enzima ingaba nesantya sokuvuza, kodwa i-valve ye-butterfly enezindandatho zokutywina ezininzi inokufezekisa ukutywinwa kwe-0 kwaye inomsebenzi wokutywina ophezulu.
5. Izixhobo ze-all-metal zokutywina iivalvu zebhabhathane kunye ne-multi-layer sealing butterfly valves
·Isitywina esipheleleyo sesinyithi: Isihlalo sevalve sihlala sine-Stellite, izinto zomzimba yi-WCB, SS304, SS316, SS2205, SS2507, kunye nentsimbi yokutywina ipleyiti yevalve inokukhethwa ngokwezinto zeplate yevalve;
·Umsesane wokutywina we-Multi-layer: Izinto zokuhlala kwi-valve: I-Stellite, okanye i-body material, i-valve plate yokutywina iringi idla ngokusebenzisa i-RPTFE/PTFE+metal, graphite+metal;
Ngokubanzi, zombini iivalve zebhabhathane zentloko kunye nemigangatho emininzi yebhabhathane zineemeko ezisebenzayo, kwaye abasebenzisi banokukhetha uhlobo olufanelekileyo lwevalve yebhabhathane ngokwemeko yokwenyani.Xa ukhetha ivalve yebhabhathane, iiparameters ezifana noxinzelelo lolwelo, ubushushu, izinga lokuqukuqela kunye nephakathi kufuneka ziqwalaselwe ukuze kukhethwe uhlobo olufanelekileyo lwevalve yebhabhathane kwaye kuqinisekiswe ukusebenza okuqhelekileyo kwevalve.
Ukuba iqondo lobushushu liphezulu kakhulu kwaye akukho masuntswana amakhulu, ungakhetha ivalve yebhabhathane etywiniweyo yonke.
Ukuba iqondo lobushushu aliphezulu kakhulu kwaye eliphakathi liqulathe amasuntswana, khetha ivalve yebhabhathane yokutywina inexabiso eliphantsi.