Iimfuno zeMathiriyeli kunye nezoBuchule zevalvu Isivusi soMbane sevalvu yesikhululo sombane (1)
Okokuqala, ngokubhekiselele ekukhethweni kwevalve, kwiintsuku zokuqala zokusekwa koMmandla oKhethekileyo, uthungelwano lwemibhobho yonikezelo lwamanzi lwalungaphantsi kweekhilomitha ezili-10, kwaye uninzi lothungelwano lwemibhobho lwalusebenzisa iivalvu zesango. Ngenxa yothungelwano lombhobho olula kunye nokuqina kakuhle kweevalve zesango, indima yeevalve kwinethiwekhi yombhobho yayingabalulekanga kakhulu. Ivalve yebhabhathane ethambileyo. Umphezulu wokutywina udla ngokwenziwa ngerabha ye-butadiene kunye nerabha ye-epDM, njl njl. Irabha ebuyiselweyo ayivumelekanga ngokungqongqo. Izinto zokutywina kufuneka zihlangabezane neemfuno zezalathisi zempilo, kunye nokubonisa uvavanyo lokulwa nokuguga kunye nedatha yovavanyo lokumelana nokunxiba;
Okokuqala, ngokubhekiselele ekukhethweni kwevalve, kwiintsuku zokuqala zokusekwa koMmandla oKhethekileyo, uthungelwano lwemibhobho yonikezelo lwamanzi lwalungaphantsi kweekhilomitha ezili-10, kwaye uninzi lothungelwano lwemibhobho lwalusebenzisa iivalvu zesango. Ngenxa yothungelwano lombhobho olula kunye nokuqina kakuhle kweevalve zesango, indima yeevalve kwinethiwekhi yombhobho yayingabalulekanga kakhulu. Kwaye ekuqaleni kweminyaka yoo-1990, ukusetyenziswa kwevalve yebhabhathane kwilizwe lonke ngamandla, ngelo xesha, imveliso yevalve yebhabhathane yaseTshayina yaqala nje, kumzimba wokuphosa amandla awukho phezulu, ukusebenza kwevalve yepleyiti yefaskoti yokutywina kumbi, umgangatho weengxaki zevalve yebhabhathane ungaphezulu. kwaye kucace ngakumbi. Iivalve ezisetyenziswe kuthungelwano lombhobho zihlelwa ngecaliber: ivalve yesango isetyenziswa xa i-DN≤400mm, i-butterfly valve isetyenziswa xa i-DN400mm. Isiseko esiphambili sokuhlela kukuba i-90% yomsebenzi wolawulo lokugcinwa kuthungelwano lombhobho lwenzeka kuthungelwano lombhobho omncinci ongaphantsi kwe-DN400mm, ngoko kufuna ukuqina okulungileyo kokuvula kunye nokuvala iivalve kumnatha wombhobho. Kwaye ngenxa yokuba i-caliber incinci, amandla okusebenza okuvula kunye nokuvala ivalve ayinkulu. Nangona kunjalo, ukuphindaphinda kombhobho ogqabhukileyo kuthungelwano lombhobho we-DN400mm kuphantsi kakhulu kunoko kuthungelwano lombhobho omncinci, kwaye ubunzulu bomsebenzi wokuvula nokuvala emva kokusebenzisa ivalve yebhabhathane buyancipha.
Ingxaki yangoku kwikhonkco lokuthengwa kwevalve inkampani yethu ikwabeka phambili iimfuno zobugcisa ezihambelanayo:
I-1, iimfuno zezinto zevalvu
Umzimba wevalvu kunye nepleyiti yevalvu kufuneka yenziwe ngentsimbi edityanisiweyo.
(2) isiqu. Iivalvu zesango ziya kuba sisikhondo sentsimbi engatyiwayo (2Cr13), iivalve zebhabhathane ziya kuba ziintsimbi ezingenastainless stem inserts;
Izinto zamandongomane. Kufuneka yenziwe nge-aluminium yobhedu okanye i-aluminium yobhedu, ubunzima bayo kunye namandla amakhulu kune-valve stem;
Izinto eziphathekayo zokutywinwa komhlaba
A, ivelufa yesango lewedge eqhelekileyo. Umsesane wobhedu uya kuba yi-aluminiyam yobhedu okanye ubhedu olutyhidiweyo lwe-aluminiyam;
B, ivalve yebhabhathane ethambileyo. Umphezulu wokutywina udla ngokwenziwa ngerabha ye-butadiene kunye nerabha ye-epDM, njl njl. Irabha ebuyiselweyo ayivumelekanga ngokungqongqo. Izinto zokutywina kufuneka zihlangabezane neemfuno zezalathisi zempilo, kunye nokubonisa uvavanyo lokulwa nokuguga kunye nedatha yovavanyo lokumelana nokunxiba;
Ukupakisha i-valve shaft. Iringi yerabha ye-V okanye i-carbon fiber efakwe kwi-polytetrafluoroethylene yokupakisha, kufuneka iqinisekise ukusebenza kakuhle kokutywinwa, akukho kuvuza; Xa uvula kwaye uvala rhoqo, ukupakishwa akusebenzi, kungekhona ukuguga, kwaye umphumo wokutywinwa kufuneka ugcinwe ixesha elide, okufuneka kuqinisekiswe ubuncinane iminyaka elishumi okanye ngaphezulu.
2. Iimfuno zobuchwephesha zebhokisi yokudluliselwa kwesantya esiguqukayo
Impahla yomzimba kufuneka ihambelane nempahla yomzimba;
(2) Ibhokisi yothumelo kufuneka ivalwe kwaye ikwazi ukumelana nobunzulu obungekho ngaphantsi kweemitha ezi-3 ngaphandle kokuvuza;
(3) Akukho mahluko kwibhokisi, kwaye igrisi ifanele isetyenziswe ukukhusela eyona ndawo ikufutshane yesixhobo.
3, ubume bevalve yebhabhathane ethambileyo kunye neemfuno zobugcisa:
(1) Ivalve kufuneka ivalwe ijikeleziswa ngasekunene;
② Umzimba wevalve kufuneka unikezwe ibhloko ye-butterfly plate limit limit block, amandla ayo kufuneka abe mkhulu kune-torque yokuvula yevalve;
Umsesane wokutywina kufuneka ulungiswe kumzimba wevalve, kwaye ipleyiti yokutywina yokutywina kufuneka ibe yipleyiti yokucofa i-dovetail enemilinganiselo ethembekileyo yokuchasana nokukhulula;
(4) ivalve yokuvula nokuvalwa kwesiphelo sokusebenza kufuneka ibesisikwere itenon, kunye nobukhulu bomgangatho, kwaye ijonge emhlabeni;
Umgca wesikali wokuvulwa kwevalve kunye nenqanaba lokuvala kufuneka uphoswe kwisigqubuthelo sebhokisi yegiya okanye iqokobhe lepleyiti yokubonisa emva kwendlela yokuguqula, umphezulu ofanayo, kwaye umgca wesikali uhlatywe ngomgubo wefluorescent ukubonisa ukutsala kwamehlo.
I-4, ukuhamba kwamanzi oqhagamshelwano kwindawo yevalvu yomzimba kunye nepleyiti yevalvu kufuneka ibe ngamanyathelo okunqanda ukubola, njengokucocwa kwesanti kunye nokutshiza komhlwa umgubo ongeyotyhefu we-epoxy resin.
5, iimfuno zeempawu zevalvu
Xa isivalo siphuma kumzi-mveliso, umzi-mveliso wevalvu kufuneka unike ivelufa nganye inombolo emiselweyo, inombolo yayo kunye nemodeli yesivalo, uhlobo, uxinzelelo lwegama, inombolo yevalvu, umenzi, umhla wokuvelisa kunye nezinye iziqulatho zeleyibhuli yevalvu kufuneka zimiswe kumzimba wevalvu.
Ukwaziswa kwezivusi zombane kwizivalo zesikhululo samandla (1) Lo mgangatho uxela zonke iintlobo zee-activators zombane kwizivalo zesikhululo samandla (apha ekubhekiselwa kuzo njengezivusi zombane), kubandakanywa imiqathango, iintlobo, iimfuno zobugcisa, ukukhetha uhlobo, iindlela zovavanyo, imithetho yokuhlola, amanqaku. , ukupakisha, ukuthuthwa kunye nokugcinwa kweemfuno zobugcisa zokulawula amandla. Lo mgangatho usebenza kwiindidi ezahlukeneyo ze-actuator zombane ezifana ne-valve yokuvala, iivalve ezilawulayo kunye neebhaffles eziqhutywa yi-motor. *** iinguqulelo zeereferensi ezingabhalwanga ziyasebenza kulo Mgangatho wamazwe ngamazwe.
1, umda,
Lo mgangatho uchaza ii-actuator zombane kuzo zonke iintlobo zeevalvu zesikhululo samandla (emva koku zibizwa ngokuba zii-actuator zombane), kubandakanya imiqathango, iintlobo, iimfuno zobugcisa, ukukhetha uhlobo, iindlela zovavanyo, imithetho yokuhlola, amanqaku, ukupakishwa, ukuthuthwa, ukugcinwa kunye nobunye ubuchwepheshe. iimfuno zolawulo lwamandla.
Lo mgangatho usebenza kwiindidi ezahlukeneyo ze-actuator zombane ezifana ne-valve yokuvala, iivalve ezilawulayo kunye neebhaffles eziqhutywa yi-motor.
2. Amaxwebhu ereferensi eqhelekileyo
Izibonelelo zala maxwebhu alandelayo zibandakanyiwe kulo mgangatho wamazwe ngamazwe ngereferensi. Zonke izilungiso ezilandelayo (ngaphandle kweempazamo) okanye uhlaziyo kwiimbekiselo zomhla azisebenzi kulo Mgangatho wamazwe ngamazwe. Nangona kunjalo, amaqela kwisivumelwano phantsi kwalo Mgangatho waMazwe ngaMazwe ayakhuthazwa ukuba aphande ngokufumaneka kwe-*** iinguqulelo zala maxwebhu. *** iinguqulelo zeereferensi ezingabhalwanga ziyasebenza kulo Mgangatho wamazwe ngamazwe.
GB 755 Ukukala kunye nokusebenza kweemoto ezijikelezayo
I-GB / T 997 isakhiwo semoto kunye nekhowudi yohlobo lokufakela
I-GB/T 3797 Izixhobo zolawulo lwe-elektroniki-Icandelo 2: Izixhobo zolawulo lwe-elektroniki ezixhotyiswe ngezinto zombane
I-GB 4208 iklasi yokukhusela i-Enclosure (ikhowudi ye-IP)
I-GB/T 12222 Uqhagamshelo lwesixhobo se-valve drive multi-turn
I-GB/T 12223 Uqhagamshelo lwesixhobo sokuqhuba ivalve ejikelezayo
Iimpawu ze-GB / T 13306
I-JB/T 8218 yesigama se-activator
JB/T10308.3 Ibhasi yasendle yokulinganisa kunye nokulawula unxibelelwano lwedatha yedijithali iinkqubo zolawulo lwemizi-mveliso
3. Imigaqo neeNkcazo
Le migaqo ilandelayo kunye neenkcazelo ziyasebenza kulo Mgangatho weHlabathi; Amanye amagama kunye neenkcazelo ezisetyenziswe kulo Mgangatho wamazwe ngamazwe zibhekisa kwi-JB/T 8218
3.1 ireyithingi yetorque eqhelekileyo
Uyilo lweTorque olunikiweyo ixabiso.
3.2. Lawula itorque ejikelezayo
Kwimikhombandlela emibini yokuvula nokuvala, indlela yokulawula itorque inokulawula ixabiso loluhlu lwetorque, eyaziwa ngokuba yitorque yokusika.
I-torque yokulawula inokwahlulwa ibe yi-torque enkulu yokulawula kunye ne-torque encinci yokulawula. Ngokwentelekiso enkulu itorque yolawulo yindlela yokulawula itorque inokulawula itorque enkulu ngokwentelekiso yindlela yokulawula itorque enokulawula eyona torque encinci.
Itorque etshixiweyo
Ukukhutshwa kwe-torque yi-actuator yombane xa i-rotor yemoto ivaliwe.
3. Cwangcisa itorque yokubeka itorque
Ngokweemfuno zabasebenzisi, ixabiso le-torque lilawulwa yi-actuator yombane ehlengahlengisiweyo ngaphambi kokunikezelwa.
3. 5. Isantya semveliso
DL /T 641-2005
Ixabiso lesethi yoyilo yisantya sokujikeleza kwe-shaft ephumayo ye-actuator yombane.
6.6
Ngaba ixesha elifunwa yi-activator yombane ukubaleka ukusuka kwindawo "egcweleyo" ukuya kwindawo "egcweleyo" okanye ukusuka kwi-"0%" ye-stroke ukuya kwi-"100%" ye-stroke.
Impazamo yangaphakathi
Ngaphantsi kweemeko ezikhankanyiweyo zereferensi, umahluko omkhulu phakathi kwegophe lophawu lwe-stroke eyinyani kunye ne-curve ye-stroke echaziweyo echazwe njengepesenti ye-stroke elinganisiweyo.
3. Hysteresis plus Dead band
Umahluko omkhulu phakathi kwamaxabiso amabini ahambelanayo we-stroke yegalelo elifanayo elinyukayo kwaye liwela phakathi koluhlu lwe-stroke olulinganisiweyo, oluchazwe njengepesenti ye-stroke elinganisiweyo.
3.9 Ukugoba okufileyo
Ithuba elilinganiselweyo apho utshintsho kwindlela yomqondiso wegalelo alubangeli naluphi na utshintsho kwi-stroke, echazwe njengepesenti yoluhlu lwexabiso lomqondiso.
3.10. ICandelo loLawulo lwaMandla
Isixhobo sombane esiguqula kwaye sikhulise igalelo lemiqondiso yombane ukulawula indlela yokuqalisa, yokumisa kunye nokujikeleza kwemoto.
Ixesha lokuposa: Jul-19-2022
