I-valve ye-flameproof yokukhethwa kwesixhobo sombane kufuneka inikele ingqalelo kwiingongoma eziphambili zokukhetha i-valve yokungenisa

Ivalve ye-flameproof yokukhethwa kwesixhobo sombane kufuneka ithathele ingqalelo amanqaku aphambili ekukhetheni ivalve yokungenisa Amanqaku aphambili ekufuneka aqwalaselwe xa ukhetha isixhobo sombane sevalve ye-flameproof xa ukhetha isixhobo sombane sevalve evuthayo kwaye umisela iimfuno zokusebenza, amanqaku aphambili ekufuneka inike ingqalelo ukuquka ukumisela inqanaba lokhuselo lwe-IP lwesixhobo sombane sevalve engatshiyo, amandla ombane ombane wesixhobo sombane sevalve engatshiyo, ixesha elisebenzayo le-90 lesixhobo sombane sevalve engatshiyo kunye nohlobo lwe-actuator yombane. 1. Ukugqiba inqanaba lokukhusela i-IP yesixhobo sombane se-valve ye-flameproof Ekukhetheni isixhobo sombane se-valve ye-flameproof, okokuqala, ngokwendawo yokusebenza kunye neemfuno zokusetyenziswa ukumisela inqanaba lokukhusela i-IP yesixhobo sombane sombane. Unikezelo lwamanzi ngokubanzi kunye nenkqubo yokuhambisa ivalve yombane isixhobo sokuqhuba ngokwendawo yokusebenza eyahlukileyo inokwahlulwa ibe kudidi lwangaphandle, uhlobo lwangaphakathi. Inqanaba le-IP lokukhusela eliqhelekileyo elisetyenziselwa izixhobo zokuqhuba ivalve yombane yangaphandle yi-IP54 okanye i-IP55, kunye nenqanaba lokukhusela le-IP eliqhelekileyo elisetyenziselwa izixhobo ze-valve zombane zangaphakathi yi-IP43 okanye i-IP44. Ngokubanzi, izixhobo zokuvula iivalvu zombane zonikezelo lwamanzi kunye neenkqubo zokuhambisa amanzi azikwazi ukuntywiliselwa emanzini. Umgangatho wokhuseleko we-IP wesixhobo sombane sevalve engatshiyo uya kucetywa kwaye ugqitywe ngobonelelo lwamanzi kunye neengcali zokuhambisa amanzi. 2. Qinisekisa umbane wombane wesixhobo sombane se-valve ye-flameproof Okwangoku, amandla ombane ombane asetyenziswa ngokuqhelekileyo ngabasebenzisi basekhaya yi-380V kunye ne-24V, ekufuneka igqitywe ngokwemiqathango yonikezelo lwamandla olunikezwa ngamazwe angaphandle. 3. Misela ixesha le-90 lexesha lesixhobo sombane sevalve engatshiyo Ixesha le-90 lokusebenza kwento ebizwa ngokuba yisixhobo sombane se-valve ye-flameproof, oko kukuthi, ixesha elifunekayo ukuze ivalve yombane ivuleke kwaye ivaleke endaweni, iimfuno zimiselwa ngu abavelisi abaqeqeshiweyo bevalve kunye nesixhobo sombane sevalve ye-flameproof. Ixesha elisebenzayo le-90 eliqhelekileyo lihluka ukusuka kwi-7.5 ukuya kwi-30s, kodwa kufuneka lihlangabezane neemfuno zenkqubo yenkqubo yamanzi. 90 Okukhona liba lifutshane ixesha lokubaleka, kokukhona amandla enjini esixhobo sombane sevalve engatshiyo, kokukhona uphezulu umsinga. Impompo yamanzi yamandla aphezulu idla ngokuqalwa ngomthwalo olula kunye nevalve evaliweyo ukunciphisa umsinga wempompo yamanzi ukuqala. Umbhobho wokukhupha umpompo wamanzi uxhotyiswe ngevalve yokutshekisha, ivalve yombane, njl. Ngokuqhelekileyo, ixesha lokuqala levalve evaliweyo yi-10 ~ 30s. Ngoko ke, ixesha elisebenzayo le-90 lesixhobo sombane se-valve ye-flameproof ye-valve yombane yepompo yokukhupha amanzi kufuneka ihambelane nexesha lokuqala le-valve evaliweyo egqitywe ngukunikezelwa kwamanzi kunye nenkqubo yokuhambisa amanzi. Ukuba isantya sokuvula kunye nokuvala i-valve sikhawuleza kakhulu, kulula ukuvelisa i-hammer phenomenon yamanzi. Kumashishini kunye namashishini emigodi, adla ngokuxhotyiswa ngetanki yokhuseleko okanye inkqubo yonikezelo lwamanzi olungxamisekileyo lwengozi yonikezelo lwamanzi. Kukwakho nevalve yombane esisigxina kumbhobho wonikezelo lwamanzi olungxamisekileyo. Ukuze kuqinisekiswe ukhuseleko lwemveliso, i-valve yombane yombhobho wokuhambisa amanzi ngengozi idinga ukuvulwa ngexesha elifanelekileyo kunye nokuphendula okubuhlungu. Ke ngoko, ixesha elisebenzayo le-90 lesixhobo sombane sevalve ye-Chongqing yevalve engatshiyo kufuneka icuthwe kangangoko kunokwenzeka. Ukhetho oluthile lwevalvu yevalve yokungena ephuma kumazwe angaphandle ibhekisa ikakhulu kwiimpawu zangaphandle, ngakumbi iYurophu kunye neUnited States, iibrendi zaseJapan, iibrendi ezimele ngaphezulu zibandakanya iBritane yamthumela, amandla eJamani LIT, ijezi yaseJapan yaseKiTZ, eUnited States, iRETZ. , ezifana uhlobo lwevalve yeemveliso ubukhulu becala zithengwa kumazwe angaphandle, ivalve yebhola ephuma kumazwe angaphandle, ivalve yolawulo lokungeniswa elizweni, ivalve yebhabhathane, ivalve yokunciphisa uxinzelelo olungenisiweyo, ivalve yesolenoid ephuma kumazwe angaphandle, kunye nomgangatho wemveliso, uxinzelelo, ubushushu, izinto, uqhagamshelo. imo, imo yokusebenza kunye nezinye parameters ezininzi, ngokweemfuno yokwenene Ngenisa ivelufa ivelufa ikakhulu libhekisela brand angaphandle, ingakumbi eYurophu naseUnited States, brand Japanese, brand ummeli ngakumbi ziquka iBritani wamthumela, amandla Germany LIT, Japan Ijezi yasemntla KITZ, eUnited States, iRETZ, efana nohlobo lwevalve yeemveliso ikakhulu zithengwa kumazwe angaphandle, ivalve esikiweyo evela kumazwe angaphandle, ivelufa yokulawula ngaphandle, ivelufa yebhabhathane, ivelufa yokungenisa elizweni yokunciphisa uxinzelelo, ivelufa yombane yombane, njl. umgangatho wemveliso, uxinzelelo, ubushushu, izinto eziphathekayo, imowudi yokudibanisa, imo yokusebenza kunye nezinye iiparitha ezininzi, kufuneka ukhethe ivalve efanelekileyo ngokweemfuno zangempela, iimpawu zemveliso; Kweli phepha, lidityaniswe ne-brand yaseJamani i-LitLIT yaseJamani, eye yadunyiswa ngabathengi, ukhetho oluthile lwee-valve ezithunyelwa ngaphandle luhlaziywa: A, iimpawu ze-valve yokungenisa zinokusebenzisa iimpawu kunye neempawu zesakhiwo 1, ukusetyenziswa kwezinto ezithunyelwa ngaphandle. Iimpawu zevalve Ukusebenzisa iimpawu ukufumanisa usetyenziso oluphambili lwevalve yokusebenza kunye noluhlu losetyenziso, lwezeempawu zevalve zezi: udidi lwevalvu (ivalve yesiphaluka evaliweyo, ivalve elawulayo, ivalve yokhuseleko, njl.); Uhlobo lwemveliso (ivalve yesango, ivalve yeglowubhu, ivalve yebhabhathane, ivalve yebhola, njl.); Iindawo eziphambili zevalve (umzimba wevalve, isigqubuthelo, isiqu, idiski, umphezulu wokutywina) izinto; Imowudi yothumelo lwevalvu, njl. njl. umbhobho (uxhulumaniso lwe-flange, uxhulumaniso lwentambo, uxhulumaniso lwe-hoop, uxhumano lwentambo yangaphandle, uxhumano lwe-welding end, njl.); Indlela yokutywina (faka i-ring, i-thread ring, i-surfacing, i-welding yokutshiza, umzimba womzimba); Ifom yesakhiwo se-valve stem (intonga ejikelezayo, intonga yokunyusa), njl. Ezimbini, ukukhethwa kwamanyathelo e-valve I-valve ecacileyo kwisixhobo okanye ukusetyenziswa kwesixhobo, misela iimeko zokusebenza zevalve: i-medium esebenzayo, uxinzelelo lokusebenza, ukushisa okusebenzayo kunye nokunye; Umzekelo, ukuba ufuna ukukhetha ivalve yeglowubhu yeLit-LIT yaseJamani, qinisekisa ukuba i-medium ngumphunga, umgaqo osebenzayo yi-1.3Mpa, ubushushu obusebenzayo yi-200℃. Ukugqiba ubungakanani begama kunye nemodi yokudibanisa yombhobho odibanisa nevalve: i-flange, intambo, i-welding, njl.; Umzekelo, khetha ivalve yeglowubhu yokungena kwaye uqinisekise ukuba uqhagamshelo lune-flanged. Qinisekisa indlela yokusebenzisa i-valve: manual, umbane, i-electromagnetic, i-pneumatic okanye i-hydraulic, i-electro-hydraulic linkage, njl. Umzekelo, ukhetho luyi-valve yokumisa manual. Ngokwendlela yokuhambisa umbhobho, uxinzelelo olusebenzayo, ubushushu obusebenzayo ukumisela iqokobhe levalve ekhethiweyo kunye namalungu angaphakathi ezinto: intsimbi etyhidiweyo, intsimbi yekhabhoni, insimbi engenasici, intsimbi yealloyi, intsimbi enganyangekiyo, intsimbi engwevu, intsimbi ethambileyo, i-ductile iron, i-alloy yobhedu, njl. Khetha uhlobo lwevalve: ivalve yesiphaluka evaliweyo, ivalve yokulawula, ivalve yokhuseleko, njl.; Qinisekisa uhlobo lwevalve: ivalve yesango, ivalve yeglowubhu, ivalve yebhola, ivalve yebhabhathane, ivalve yebhabhathane, ivelufa yokhuseleko, ivalve yokunciphisa uxinzelelo, ivalve yomphunga, njl.njl. Ukumisela iiparameters zevalve: kwivalve ezenzekelayo, ngokweemfuno ezahlukeneyo misela ukunyanzeliswa kokuhamba okuvumelekileyo, umthamo wokukhupha, uxinzelelo lwangasemva, njl. Qinisekisa iiparameters zejometri ezikhethiweyo zevalve: ubude besakhiwo, ifom yokudibanisa i-flange kunye nobukhulu, vula kwaye uvale ulwalathiso lokuphakama kwevalve yobukhulu, ukudibanisa ubungakanani bomngxuma we-bolt kunye nenombolo, ubungakanani bemilo yevalve yonke; Sebenzisa ulwazi LUFUMANEKAYO: ikhathalogu yemveliso ye-VALVE, isampuli yemveliso yevalve, njl., Ukukhetha imveliso yevalve efanelekileyo. Isithathu, khetha isiseko se-valve Ukusetyenziswa kwe-valve ekhethiweyo, iimeko zokusebenza kunye nemodi yokulawula ukusebenza; Ubume bomsebenzi osebenzayo: uxinzelelo olusebenzayo, ubushushu bokusebenza, ukusebenza kwe-corrosion, nokuba iqulethe amasuntswana aqinileyo, ingaba i-medium inetyhefu, ingaba iyatsha, i-explosive medium, i-viscosity ephakathi, njl. Umzekelo, ufuna ukukhetha i-valve ye-solenoid yaseJamani LIT, ephakathi nendawo enokutsha, eqhumayo, ngokubanzi khetha ivalve ye-solenoid yobungqina bokudubula; Umzekelo, ukukhetha ivalve yebhola ye-LIT yaseJamani, ephakathi equlethe amasuntswana aqinileyo, ngokubanzi ukukhetha ivalve yebhola eqinileyo enemilo engu-V. Iimfuno zeempawu ze-valve fluid: ukuxhathisa ukuhamba, ukukhupha umthamo, iimpawu zokuhamba, ibakala lokutywinwa, njl.; Ubungakanani bofakelo kunye neemfuno zobungakanani bangaphandle: idiameter yegama, uqhagamshelo lombhobho kunye nobungakanani boqhagamshelo, ubungakanani bangaphandle okanye umda wobunzima, njl.njl. Ukuthembeka kweemveliso zevalve, ukusebenza kwesixhobo sombane esinobungqina bokudubula kunye nobomi benkonzo yeemfuno ezongezelelweyo (xa iiparamitha ezikhethiweyo kufuneka kuthathelwe ingqalelo: ukuba ivalve isetyenziselwa iinjongo zolawulo, kufuneka imisele ezi parameters zongezelelweyo zilandelayo, iindlela zokusebenza, uthelekiso, kunye * * ukuhamba okuncinci, ukuhla koxinzelelo oluqhelekileyo lokuhamba, uthelekiso lokuhla koxinzelelo kunye nevalve ivaliwe kunye noxinzelelo oluncinci lokungena. ). Ngokutsho kolu khetho lungentla lwesiseko sevalve kunye namanyathelo, ukhetho olufanelekileyo noluchanekileyo lwevalve kufuneka lube nolwazi olunzulu lwesakhiwo sangaphakathi seentlobo ezahlukeneyo zeevalvu, ukuze ukwazi ukukhetha ngokufanelekileyo ivalve ukwenza ukhetho oluchanekileyo. Ulawulo lokugqibela lombhobho yivalve. Ivalve yokuvula kunye neendawo zokuvala zilawula ukuhamba kwe-medium kumbhobho, imilo ye-valve flow channel yenza i-valve ibe neempawu ezithile zokuhamba, ekukhethweni kwenkqubo yombhobho eyona nto ifanele ukufakela ivalve kufuneka ithathe oku. iakhawunti. Isishwankathelo, ukhetho lwezinto ezininzi: misela ukuba yintoni umsebenzi wokukhetha i-valve, uqinisekise ubushushu, uxinzelelo lwe-medium, uqinisekise ukuhamba kwevalve kunye nesidingo se-caliber, uqinisekise izinto zevalve, imodi yokusebenza;