Jonga umfanekiso oMkhulu
Iivalvu zoshishino ziza kwiindlela ezahlukeneyo zoyilo kunye neendlela zokusebenza.Ezinye zenzelwe ukubekwa wedwa kuphela ngelixa ezinye zisebenza kuphela ukutswina.
Kwinkqubo yemibhobho, kukho iivalvu ezisetyenziselwa ukulawula uxinzelelo, inqanaba lokuhamba kunye nezinto ezithandwayo.Iivalvu zolawulo ezinjalo zisetyenziselwa ukubeka iliso kunye nokulawula ukuguquguquka kokuhamba ukuze oku kuncamathele ngokusondeleyo kangangoko kunokwenzeka kwiinkcukacha ezifunwayo.Nangona kunjalo, ivalve yolawulo yenye yezona zithathwa njengezivunyiweyo kwiivalvu kumbhobho njengoko le valve ineenkcazo ezithi ezinye iinjineli zifumanise zinzima kakhulu.
Kukho iintlobo ezininzi zeevalvu zokulawula.Enye yazo yivalve yokulawula isango elineflanged.Eli nqaku lixubusha indlela i-valve yokulawula isango e-flanged isebenza ngayo, ukusetyenziswa kwayo kunye nezinto ezithandwayo.
Yintoni iValufa yoLawulo?
Ngenkcazo, i-valve yokulawula nayiphi na i-valve engakwazi ukulawula ukuhamba kweendaba, ukulinganiswa kwayo koxinzelelo ngokubhekiselele kwisixhobo sokulawula sangaphandle.Ngokuqhelekileyo, iivalve zokulawula zidibene nolawulo lokuhamba kweendaba kodwa ezi zinokutshintsha ezinye iinguqu zenkqubo.
Ivalve yokulawula ithathwa njengeyona nxalenye ibalulekileyo yelophu yolawulo.Utshintsho olwenziwe yivalve yolawulo luchaphazela ngokuthe ngqo inkqubo yevalve enjalo eqhagamshelwe kuyo.
Iivalvu ezininzi zemizi-mveliso zisebenza njengeevalvu zolawulo njengoko kubonwa kwitheyibhile engezantsi.Iivalvu zebhabhathane kunye neglowubhu zingasetyenziselwa ukuthontsiza.Ngelixa iivalvu zebhola kunye neeplagi zeplagi zinamandla okugobhoza, ezi azisoloko zifanelekela inkonzo enjalo ngenxa yoyilo lwezi ntlobo zimbini zevalvu.Bathanda ukonakala kwefriction.
Iivalvu zokulawula zibandakanya iindidi ezahlukeneyo eziqhelekileyo.Inokuba nentshukumo yomgca njengaleyo yeglowubhu, i-pinch kunye ne-diaphragm valves.Inokuba nentshukumo ejikelezayo njengaleyo yebhola, ibhabhathane kunye neevalvu zeplagi.
Kwelinye icala, iivalvu zokhuseleko zinamandla okunciphisa uxinzelelo.Kwakhona, ivalve yeglowubhu, ivalve yebhola, kunye nevalve yeplagi inamandla okutshintsha indlela yokuhamba kwemidiya.Nangona kunjalo, zikho iimeko.Kuphela iivalvu zeglowubhu ye-engile, ibhola ye-multiport kunye neevalve zeplagi ezinokutshintsha indlela yemidiya.
| Uhlobo lweValve | Inkonzo | |||
| Ukubekwa wedwa | Umcephe | Ukunciphisa Uxinzelelo | Utshintsho lweNdlela | |
| Ibhola | ✓ | ✓ | X | ✓ |
| Ibhabhathane | ✓ | ✓ | X | X |
| Khangela | ✓ | X | X | X |
| I-diaphragm | ✓ | X | ✓ | X |
| Isango | ✓ | X | X | X |
| Iglobhu | ✓ | ✓ | X | ✓ |
| Iplagi | ✓ | ✓ | X | ✓ |
| Uncedo loKhuseleko | X | X | ✓ | X |
| Misa Khangela | ✓ | X | X | X |
Iimpawu zeValve yokulawula
Iivalvu zolawulo ezizezosapho lwentshukumo ehambelanayo zinokucudisa amaqondo okuqukuqela amancinci.Ngokufanelekileyo kwizicelo zoxinzelelo oluphezulu, indlela yokuhamba yolu hlobo lwevalve iyadityaniswa.Ukubonelela ngokutywinwa okungcono, ibhonethi yohluliwe.Iziqhagamshelo zisoloko zineflang okanye zifakwe imisonto.
Iimpawu zeValve yokulawula
Iivalvu zeglobhu ezinezihlalo ezizezinye zifuna amandla amakhulu ukuhambisa isikhondo kodwa zibonelela ngokuvalwa okuqinileyo.Ngokwahlukileyo, iivalve zeglowubhu ezihleli ezibini zifuna amandla amancinci ukuhambisa isiqu kodwa ayinakufezekisa amandla okuvalwa okuqinileyo kwevalve yeglowubhu ehleliyo enye.Ukongezelela, iinxalenye zayo ziguga ngokulula.
Izivalo zediaphragm, kwelinye icala, zisebenzisa isitulo esifana nesali ukutywina ivalve.Olu hlobo lufumaneka ngokuqhelekileyo kwimibhobho ejongene neendaba ezitshabalalisayo.
Ivalve yokulawula intshukumo ejikelezayo inendlela yokuhamba elungelelanisiweyo ngakumbi xa kuthelekiswa nosapho oluhambayo.Iyakwazi kwakhona ukuchacha kakuhle kumathontsi oxinzelelo.Inomthamo omkhulu weendaba kunye nokunxiba okuncinci ukupakisha.Iivalve zebhabhathane zinika ukuvalwa okuqinileyo kunye nokwehla koxinzelelo oluphantsi.
IValve yokulawula iNkqubo yokuSebenza
Njengoko kukhankanyiwe ngaphambili, iivalvu zokulawula zihlala zisetyenziselwa ukulawula ukuhamba kwemidiya.Esinye sezizathu zokuba kutheni oku kufuneka kwenziwe kukho utshintsho kumthwalo woxinzelelo.Ngamaxesha amaninzi, kukho inzwa eyothusa inkqubo yotshintsho kwiinguqu zesistim.Emva koko, umlawuli uthumela umqondiso kwi-valve yokulawula, esebenza njenge-muscle, ngoko ke, ilawula ukuhamba njengoko kubonakala kumfanekiso ongezantsi:
Yintoni iiFlanges?
Iiflange ngamalungu adibanisa iivalve, iimpompo kunye nezinto ezifana nenkqubo yombhobho.Ukutywinwa kwenziwa ngeebholiti okanye iiwelds ezinegasket phakathi.Ukuthembeka kwee-flanges kuxhomekeke kwinkqubo yokwenza ngokubambisana ngokumalunga nokuguquguquka kwenkqubo.
Ngaphandle kwe-welding flanges zezona ndlela ziqhelekileyo zokujoyina kwinkqubo yombhobho.I-advanteji yeeflange kukuba ivumela ivalve ukudilizwa, nangaphandle kokususa iinxalenye eziphambili zevalve.
Amaxesha amaninzi, iiflange zinezinto ezifanayo kunye nomzimba wevalve okanye umbhobho.Eyona nto ixhaphakileyo kwi-flanges yintsimbi ye-carbon steel.Ezinye izinto ezisetyenzisiweyo zidweliswe ngezantsi”
#Aluminiyam
# Ubhedu
# Yenziwe ngentsimbi eshayinayo
# Jula i-ayini
# Broze
# Iplastiki
Yintoni iValufa yoLawulo lweSango eFlanged?
Ivalve yesango ephothiweyo luhlobo lwevalve yesango eneziphelo eziphothiweyo.Olu luhlobo lwesivalo esinomsebenzi ongaphezulu kwesinye.Oku kunokusebenza njengevalve yokwahlula kunye nevalve yokuthontsiza.
Ukuba ivalve yesango, inoqoqosho ngenxa yoyilo lwayo.Ngaphaya koko, ivalve yokulawula isango eneflanged inokuvula okanye ivale ngokuqinileyo kwaye ayinakuphulukana noxinzelelo oluphezulu lwehla ukuze izinga lokuhamba libe notshintsho oluncinci.
Ukuqhoboshela i-actuator kunye ne-remote pressure drop detector, ivalve yesango iba yivalve yokulawula.Nge-disc yayo, inokubetha ukuya kwinqanaba elithile.
Ukuze ivalve ifakwe kumbhobho, iiflange kufuneka zibotshwe kwaye zidityaniswe ukuze zikhuseleke.Ivalve yesango eneflang ilandela imigangatho ye-ASME B16.5.Rhoqo, olu yilo lusebenzisa idiski yohlobo lwewedge njengento yokuvala.
Olu hlobo lwevalve lusetyenziswa kuxinzelelo oluphantsi kunye nezicelo zobushushu.Ukuba neempawu zevalve yesango, iingenelo zevalve yesango eneflanged kukuba ayinayo i-high-pressure drops.
Izicelo zeValve yoLawulo lweSango eneFlanged
Iivalvu zokulawula isango ezinamaphiko zisoloko zisetyenziswa kwezi zicelo zilandelayo.
# Izicelo zeOyile ngokubanzi
# Ukusetyenziswa kwegesi kunye naManzi
Isishwankathelo
Ngeendidi zevalve ezininzi, kunokwenzeka ukuba kukho iindlela ezininzi zokwenza iivalvu zemisebenzi ethile.Omnye umzekelo onjalo yivalve yokulawula isango eline-flanged.Le valve isebenza zombini njengevalve yokulawula kunye nevalve yokuvala.Ukuba unomdla wokuba neevalvu zeshishini ezilungiselelweyo, qhagamshelana nathi apha.
Ixesha lokuposa: Feb-25-2022