I-valve ye-diaphragm

I-valve ye-diaphragmiyi-valve yokuvala esebenzisa i-diaphragm njengengxenye yokuvula neyokuvala ukuze ivale umgudu wokugeleza, inqamule uketshezi, futhi ihlukanise ingaphakathi lomzimba we-valve nekhala elingaphakathi lesembozo sevalvu.I-diaphragm ivamise ukwenziwa ngenjoloba, ipulasitiki nezinye izinto ezinwebekayo, ezimelana nokugqwala, nezingangeneki.Umzimba we-valve wenziwe kakhulu ngepulasitiki, ipulasitiki eqiniswe ngefayibha yengilazi, i-ceramic noma izinto ezenziwe ngerabha yensimbi.Isakhiwo esilula, ukuvalwa kahle nokusebenza kokunqanda ukugqwala, nokumelana noketshezi oluphansi.Isetshenziselwa imidiya enengcindezi ephansi, izinga lokushisa eliphansi, ukugqwala okuqinile kanye nodaba olumisiwe.Ngokusho kwesakhiwo, kukhona uhlobo lwephahla, uhlobo lwe-cut-off, uhlobo lwesango nokunye.Ngokwendlela yokushayela, ihlukene nge-manual, i-pneumatic ne-electric.
 
Isakhiwo se-valve ye-diaphragm sihluke kakhulu ku-valve evamile.Iwuhlobo olusha lwe-valve kanye nohlobo olukhethekile lwe-valve yokusika.Ingxenye yayo yokuvula neyokuvala iyi-diaphragm eyenziwe ngezinto ezithambile.Umgodi wangaphakathi wekhava kanye nengxenye yokushayela ihlukanisiwe futhi manje isetshenziswa kabanzi emikhakheni ehlukahlukene.Amavalvu e-diaphragm asetshenziswa kakhulu ahlanganisa amavalvu e-diaphragm anerabha, ama-diaphragm ane-fluorine-lined diaphragm, ama-diaphragm valves angenantambo, namavalve epulasitiki e-diaphragm.
I-valve ye-diaphragm ifakwe i-diaphragm eguquguqukayo noma i-diaphragm ehlanganisiwe emzimbeni we-valve kanye nesembozo se-valve, futhi ingxenye yayo evalayo iyithuluzi lokucindezela elixhunywe ne-diaphragm.Isihlalo se-valve singabukeka njenge-weir, noma singaba udonga lwamapayipi oludlula kumzila wokugeleza.Inzuzo ye-valve ye-diaphragm ukuthi indlela yokusebenza kwayo ihlukaniswe ne-medium passage, engagcini nje ngokuqinisekisa ukuhlanzeka kwendawo yokusebenza, kodwa futhi ivimbela ukuthi kungenzeka ukuthi i-medium epayipini ithinte izingxenye zokusebenza zendlela yokusebenza.Ukwengeza, asikho isidingo sokusebenzisa noma yiluphi uhlobo lwesivalo esihlukile esiqwini se-valve, ngaphandle uma sisetshenziswa njengendawo yokuphepha ekulawuleni imidiya eyingozi.Ku-valve ye-diaphragm, njengoba isisetshenziswa esisebenzayo sithintana kuphela ne-diaphragm kanye nomzimba we-valve, kokubili okungasebenzisa izinto ezihlukahlukene ezihlukahlukene, i-valve ingakwazi ukulawula ngokufanelekile izinhlobonhlobo zemidiya yokusebenza, elungele ikakhulukazi ukugqwala kwamakhemikhali noma okumisiwe. izinhlayiya medium.Izinga lokushisa elisebenzayo le-valve ye-diaphragm ngokuvamile lilinganiselwe izinto ezisetshenziswa ku-diaphragm kanye nolwelwesi lwe-valve yomzimba, futhi izinga lokushisa elisebenzayo licishe libe ngu-50℃ ~175℃.I-valve ye-diaphragm inesakhiwo esilula, esinezingxenye ezintathu eziyinhloko kuphela: umzimba we-valve, i-diaphragm kanye nomhlangano wekhanda le-valve.I-valve kulula ukuyiqaqa ngokushesha futhi ilungiswe, futhi ukushintshwa kwe-diaphragm kungaqedwa esizeni nangesikhathi esifushane.
 
Umgomo wokusebenza nokwakheka:
I-valve ye-diaphragm isebenzisa umzimba wojenga olumelana nokugqwala kanye ne-diaphragm emelana nokugqwala esikhundleni sokuhlangana kwe-valve core, futhi ukunyakaza kwe-diaphragm kusetshenziselwa ukulungiswa.Umzimba we-valve we-valve ye-diaphragm wenziwe ngensimbi ecijile, insimbi ecijile, noma insimbi engagqwali, futhi ulandwe ngezinto ezivikela ukugqwala noma ezingagugi, irabha ye-diaphragm kanye ne-polytetrafluoroethylene.I-diaphragm yolwelwesi inokumelana nokugqwala okuqinile futhi ifanele ukulungiswa kwemidiya edlayo eqinile njenge-asidi eqinile ne-alkali eqinile.
I-valve ye-diaphragm inesakhiwo esilula, ukumelana noketshezi oluphansi, kanye nomthamo omkhulu wokugeleza kunezinye izinhlobo zama-valve zokucaciswa okufanayo;ayinakho ukuvuza futhi ingasetshenziselwa ukulungiswa kwe-viscosity ephezulu kanye nemidiya ye-particulate emisiwe.I-diaphragm ihlukanisa okuphakathi nendawo engaphezulu kwesiqu se-valve, ngakho-ke ayikho indawo yokupakisha futhi akukho ukuvuza.Kodwa-ke, ngenxa yomkhawulo we-diaphragm nezinto zokwenziwa kolayini, ukumelana nengcindezi nokumelana nezinga lokushisa kuphansi, futhi ngokuvamile kulungele kuphela ukucindezela okuzisholo okungu-1.6MPa nangaphansi kuka-150°C.
Isici sokugeleza se-valve ye-diaphragm siseduze nesici sokuvula ngokushesha, esicishe sibe umugqa ngaphambi kuka-60% we-stroke, futhi izinga lokugeleza ngemva kuka-60% alishintshi kakhulu.Amavalvu e-pneumatic diaphragm angabuye afakwe amasiginali wempendulo, imikhawulo kanye nezindawo zokubeka indawo ukuze ahlangabezane nezidingo zokulawula okuzenzakalelayo, ukulawula uhlelo noma ukulungiswa kokugeleza.Isignali yempendulo ye-valve ye-diaphragm ye-pneumatic isebenzisa ubuchwepheshe bokuzwa okungathinteki.Umkhiqizo wamukela isilinda sohlobo lwe-membrane esikhundleni se-piston cylinder, esusa ububi bokulimala kalula kweringi ye-piston, okubangela ukuvuza nokungakwazi ukusunduza i-valve ukuthi ivuleke futhi ivale.Uma umthombo womoya wehluleka, isondo lesandla lisengasebenza ukuze livule futhi livale ivalvu.
 
Umgomo wokuvala we-valve ye-diaphragm ukuthembela ekunyakazeni phansi kwendlela yokusebenza ukuze ucindezele phansi i-diaphragm noma umhlangano we-diaphragm kanye nomgudu womzimba we-valve yomugqa wohlobo lwe-weir noma umzimba we-valve yomugqa oqondile ukuze ufinyelele uphawu. .Ukucindezela okuqondile kophawu kufinyelelwa ngokucindezela phansi kwelungu elivalayo.Njengoba umzimba we-valve ungahlanganiswa nezinto ezihlukahlukene ezithambile, njenge-raber noma i-polytetrafluoroethylene, njll;i-diaphragm nayo yenziwe ngezinto ezithambile, njengenjoloba noma irabha yokwenziwa efakwe i-polytetrafluoroethylene, ngakho-ke ingafinyelelwa ngamandla amancane okuvala Avalwe ngokuphelele.
 
Amavalvu e-diaphragm anezakhi ezintathu kuphela eziyinhloko: umzimba, i-diaphragm kanye nokuhlanganiswa kwebhonethi.I-diaphragm ihlukanisa umgodi ongaphakathi womzimba we-valve engezansi nekhala elingaphakathi lesembozo se-valve engenhla, ukuze isiqu se-valve, i-valve stem nut, i-valve clack, indlela yokulawula umoya, indlela yokulawula kagesi nezinye izingxenye ezitholakala ngaphezu kwe-diaphragm. hlangana ne-medium, futhi akukho okuphakathi okukhiqizwa.Ukuvuza kwangaphandle kusindisa isakhiwo sokuvala sebhokisi lokugxusha.
 
Lapho i-valve ye-diaphragm isebenza khona
I-valve ye-diaphragm iwuhlobo olukhethekile lwe-valve yokuvala.Ingxenye yayo yokuvula neyokuvala iyi-diaphragm eyenziwe ngezinto ezithambile, ehlukanisa ingaphakathi lomzimba we-valve emgodini ongaphakathi wesembozo se-valve.
Ngenxa yomkhawulo wenqubo yokuhlanganisa umzimba wama-valve kanye nenqubo yokukhiqiza i-diaphragm, ulwelwesi lwama-valve olukhudlwana kanye nenqubo yokukhiqiza i-diaphragm enkulu kunzima.Ngakho-ke, i-valve ye-diaphragm ayifanele amadayimitha amapayipi amakhulu, futhi ngokuvamile isetshenziselwa amapayipi angaphansi kwe-DN200.Ngisendleleni.
Ngenxa yomkhawulo we-diaphragm material, i-valve ye-diaphragm ifanele ukucindezela okuphansi kanye nezikhathi zokushisa eziphansi.Ngokujwayelekile ungadluli ku-180°C.Ngenxa yokuthi i-valve ye-diaphragm inokusebenza okuhle kokunqanda ukugqwala, ngokuvamile isetshenziswa kumishini yemidiya ebolayo namapayipi.Ngoba izinga lokushisa elisebenzayo le-valve ye-diaphragm linqunyelwe indawo esebenzayo ye-diaphragm valve body lining material kanye ne-diaphragm material.
 
Izici:
(1) Ukumelana noketshezi kuncane.
(2) Ingasetshenziselwa isisetshenziswa esiqukethe izinto eziqinile ezimiswe okwesikhashana;njengoba i-medium ithinta kuphela umzimba we-valve kanye ne-diaphragm, asikho isidingo sokugxusha ibhokisi, ayikho inkinga yokugxusha ukuvuza kwebhokisi, futhi akwenzeki ukugqwala esiqwini se-valve.
(3) Ifanele imidiya ebolayo, i-viscous, ne-slurry.
(4) Ayikwazi ukusetshenziswa ezikhathini zokucindezela okukhulu.
 
Ukufaka nokunakekela:
①Ngaphambi kokufaka i-valve ye-diaphragm, hlola ngokucophelela ukuthi izimo zokusebenza zepayipi ziyahambisana yini nobubanzi bokusetshenziswa obucaciswe yile valve, bese uhlanza imbobo engaphakathi ukuze uvimbele ukungcola ekuminyanisweni noma ukulimaza izingxenye zokuvala.
②Ungawafaki amafutha noma uwoyela ngaphezulu kolwelwesi lwenjoloba kanye ne-diaphragm yerabha ukuze uvimbele ukuthi irabha ingavuvukali futhi iphazamise impilo yesevisi ye-diaphragm valve.
③Isondo lesandla noma indlela yokudlulisa ayivunyelwe ukuthi isetshenziselwe ukuphakamisa, futhi ukushayisana kunqatshelwe ngokuqinile.
④ Uma usebenzisa i-valve ye-diaphragm mathupha, ungasebenzisi izinsimbi ezisizayo ukuze uvimbele i-torque eyeqile ekulimazeni izingxenye zokushayela noma izingxenye zokuvala.
⑤Ama-valve e-diaphragm kufanele agcinwe ekamelweni elomile nelingena umoya, ukupakisha akuvunyelwe ngokuqinile, iziphetho zombili ze-diaphragm valve kufanele zivaliwe, futhi izingxenye zokuvula nokuvala kufanele zibe sesimweni esivuleke kancane.