Kwinqaku elandulelayo, sathetha ngeevalve zesango kunye neglowubhu, namhlanje siqhubela phambili kwi-butterfly valves kunye ne-check valves, ezisetyenziswa ngokuqhelekileyo kunyango lwamanzi.
1. Ivalve yebhabhathane.
Ivalve yebhabhathaneyivalve ejikelezayo esebenzisa idiski (ekwabizwa ngokuba yipleyiti yebhabhathane) ukuvula nokuvala ilungu ukujikeleza 90 ° okanye malunga 90 ° ukuvula nokuvala itshaneli.Ukuhamba kwediski yevalve yebhabhathane kucinywa, ngoko ke iivalvu ezininzi zebhabhathane zingasetyenziselwa imidiya kunye namasuntswana aqinileyo amisiweyo.
Iivalve zebhabhathane ezisetyenziswa ngokuqhelekileyo ziquka iwafe kunye neevalve zebhabhathane.Ivalve yohlobo lwebhabhathane isetyenziselwa ukudibanisa ivalve phakathi kweeflange ezimbini zemibhobho eneebholiti, kunye nevalve yohlobo lwebhabhathane eneflange kwivalve, kwaye iiflange kuzo zombini iziphelo zevalve ziqhagamshelwe kwiflange yombhobho ngeebholiti.
Iimbonakalo:
1.Ubungakanani obuncinci, ubude obufutshane, isakhiwo esilula kunye nobunzima obulula.
2. Kulula ukusebenza, ukuvula ngokukhawuleza nokuvala, kufuneka kuphela ukujikeleza i-disc 90 ° ukuvula nokuvala.
3. Ukutywinwa kakuhle kunye nokusebenza kohlengahlengiso.Ngenxa yokuba irabha isetyenziswe njengendandatho yokutywina, ukunyanzeliswa kunye nokuqina kulungile (oko kukuthi, akuyi kuba nzima), ngoko ukusebenza kokutywinwa kulungile..I-flap yevalve inokuvulwa phakathi kwe-15 ° kunye ne-70 °, kwaye ingenza ulawulo olubucayi lokuhamba.
4. I-torque encinci yokusebenza kunye nokuchasana kwamanzi.Ngokwemilinganiselo, ukuxhathisa ulwelo lweevalvu zebhabhathane kungaphantsi kokwezinye iintlobo zeevalvu ngaphandle kweevalvu zebhola.
5. Ngenxa yokukhawulelana kwezinto zokutywina, uxinzelelo lokusebenza kunye nomgangatho wokushisa osebenzayo we-valve butterfly incinci.
2.Khangela iValve
Ukusetyenziswa kunye neempawu:
Khangela ivalveivelufa esetyenziselwa ukuthintela ukubuyela ngasemva kwemidiya kumbhobho, ivula xa i-medium ihamba ezantsi kwaye ivale ngokuzenzekelayo xa i-medium ibuyela ngasemva.Ngokuqhelekileyo isetyenziswe kumbhobho ayivumeli i-medium ukuba ihambe kwicala elichaseneyo, ukwenzela ukuthintela ukubuyisela umva komonakalo ophakathi kwizixhobo kunye namacandelo.Xa impompo iyeka ukusebenza, musa ukubangela ukuguqulwa kwepompo ejikelezayo.Kwimibhobho, ngokuqhelekileyo khangela iivalve kunye neevalve ezivaliweyo ezisetyenziselwa uchungechunge.Oku kubangelwa ukutywinwa okungahambi kakuhle kwe-valve yokutshekisha, xa uxinzelelo lweendaba luncinci, kuya kuba nenxalenye encinci yokuvuza kweendaba, imfuno yeevalve ezivaliweyo zokuqinisekisa ukuvalwa kombhobho.Ivalve esezantsi ikwayivalve yokukhangela, kufuneka ifakwe emanzini, ifakwe ngokukodwa kwimpompo ayikwazi ukuzilungisa okanye akukho vacuum yokumpompa umbhobho wokufunxa amanzi ngaphambili.
Ivalve yonyango lwamanzi ukusilela okuqhelekileyo kunye nemilinganiselo
I-Valve ekusebenzeni kombhobho ixesha elithile, kuya kubakho ukusilela okuhlukeneyo.Okokuqala, inani leenxalenye ezinxulumene nokubunjwa kwe-valve, iindawo ezininzi zingaphumeleli eziqhelekileyo.Okwesibini, ngokuyila i-valve, ukuveliswa, ukufakela, iimeko zokusebenza, inzuzo yokugcina kunye nokungonakali.Ivalve jikelele engaqhutywanga mandla ukusilela okuqhelekileyo kwahlulwe ngokweendidi ezine.
1.Ukusilela kosasazo
Ukungaphumeleli kwesixhobo sothumelo kudla ngokubonakaliswa njenge-valve stem jamming, ukusebenza ngokuguquguqukayo okanye ivalve ayikwazi ukusebenza.Izizathu zezi: ivalve ivaliwe ixesha elide emva kokugqwala;ukufakwa kunye nokusebenza komonakalo ongafanelekanga kwimicu ye-stem okanye i-stem nut;isango lixinzelelwe kumzimba wevalvu zizinto zasemzini;Isango lihlala livuleke ngesiqingatha kwaye livalwe ngesiqingatha, ngamanzi okanye ezinye iimpembelelo ezikhokelela kwizikrufu zesikhondo kunye nokungahambi kakuhle kocingo lwe-stem nut, ukukhulula, isenzeko sokuluma;ukupakisha uxinzelelo kuqine kakhulu, ubambe isiqu;Isiqu sigqitywe okanye ngokuvalwa kweendawo ezixineneyo.Ukugcinwa kufuneka kufakwe iinxalenye zokuqhuba.Ngoncedo lwe-wrench, kunye nokucofa ngobumnene, unokuphelisa i-phenomenon ye-jamming, i-topping;ukumisa ukulungiswa kwamanzi okanye ukutshintshwa kwevalve.
2.Ivalve eyonakeleyo yokugqabhuka komzimba
Izizathu zokugqabhuka kwevalve emzimbeni: ukuchasana nokuthotywa kwevalve kuyancipha;ukuhlaliswa kwesiseko sombhobho;uxinzelelo lwenethiwekhi yombhobho okanye utshintsho lobushushu bokutshintsha;isando samanzi;vala umsebenzi ongafanelekanga wevalve njalo njalo.Kufuneka isuse ngokukhawuleza oonobangela bangaphandle kwaye ibuyisele uhlobo olufanayo lwamalungu evalvu okanye iivalvu.
3. Ukuvuza kweValve
Ukuvuza kwevalvu kubonakaliswa ngolu hlobo: ukuvuza okungundoqo kwevalvu;ukuvuza kwedlala;ukuvuza gasket flange.Oonobangela abaxhaphakileyo zezi: isiqu sevalvu (i-valve shaft) ukuguga, ukubola kwe-corrosion, ukuvala imingxuma engaphezulu, ukuxobuka;ukuguga ukutywina, ukuvuza;iibholithi zedlala, iibholithi zeflange zikhululekile.Ukugcinwa kokwandisa, indawo yokutywina;buyisela i nut entsha ukulungisa indawo yebholithi yokuqinisa.
Kungakhathaliseki ukuba luhlobo luni lokusilela ukuba ukulungiswa okuqhelekileyo, ukugcinwa kwexesha elifanelekileyo, kunokubangela ukuchithwa kwamanzi, okanye kubi nakakhulu, kubangele yonke inkqubo ikhubazekile.Ngoko ke, abasebenzi bokugcinwa kwe-valve kufuneka babe kwizizathu zokungaphumeleli kwe-valve ukwenza umsebenzi omhle, ukulawulwa kwezakhono kunye ngokuchanekileyo kunye nokusebenza kwe-valve, ukunyangwa kwangexesha kunye nokugqiba kweentsilelo ezahlukeneyo ezingxamisekileyo, ukukhusela ukusebenza okuqhelekileyo kwenethiwekhi yonyango lwamanzi.
4.ivalve yokuvula nokuvala ayilunganga
Ukuvula i-valve kunye nokuvala ukusebenza kakubi kwi-valve ayivulwanga okanye ivaliwe, i-valve ayikwazi ukusebenza ngokuqhelekileyo.Izizathu zezi: i-valve stem corrosion;isango elixineneyo okanye isango livaliwe ixesha elide kwimeko yokugqwala;ukuphuma kwesango;izinto zangaphandle ezincanyathiselwe kumphezulu wokutywina okanye kwigroove yokutywina;iindawo zokuhambisa zinxiba, ukuxinana.Ukudibana nokugcinwa kwemeko engentla, iindawo zokuhambisa i-lubrication;ukuvula nokuvala ngokuphindaphindiweyo ivalve kunye nefuthe le-hydrodynamic yezinto zangaphandle;ukutshintshwa kwevalve.