Yintoni ivalve yokulawula?
Aivalve yokulawulasisiqalelo sokugqibela solawulo esisetyenziselwa ukulawula ukuhamba kolwelo ngomjelo.Ziyakwazi ukutyhutyha ukuhamba kuluhlu oluvuleke ngokupheleleyo ukuya kuvalwe ngokupheleleyo.I-valve yokulawula ifakwe i-perpendicular to flow, umlawuli unokulungelelanisa ukuvulwa kwevalve nakweliphi na inqanaba phakathi kwe-ON & OFF.
Iimeko ezichaphazela ukhetho lwevalvu:
Ivalve yokulawula ibalulekile ekusebenzeni kwenkqubo.Akunjalo kuphela inkcazo ye-valve ngokwayo ebalulekileyo, kodwa kuyimfuneko ukuqwalasela ngokwaneleyo ezinye izinto ezinxulumene ne-valve yokulawula ukuze isebenze njengoko kufuneka.Oku kulandelayo ngamanqaku aphambili ekufuneka uwagcine engqondweni xa uchaza ivalve yokulawula:
1. Inkqubo ekujoliswe kuyo:
Kubalulekile ukuqonda kakuhle inkqubo kuquka ivalve yokulawula.umntu kufuneka aqonde ngokwaneleyo ukuqala kunye nokuvalwa kwenkqubo ngokwayo, kubandakanywa nokuziphatha okufanelekileyo kwimeko yongxamiseko.
2. Injongo yokusetyenziswa:
I-valve yokulawula isetyenziselwa iinjongo ezahlukeneyo, ii-valve zokulawula zisetyenziselwa ukulawula izinga kwitanki, kukho kwakhona iivalve ezilawula ukuhla koxinzelelo olusuka kwi-high-pressure system ukuya kwi-low-pressure system.
Kukho iivalvu zokulawula ezilawula ukunqunyulwa kunye nokukhululwa kolwelo, xuba ulwelo olumbini, lwahlule ukuhamba lube kumacala amabini, okanye utshintshiselwano lwamanzi.Ngoko ke, i-valve yokulawula efanelekileyo kakhulu ikhethwa emva kokumisela iinjongo zevalve ethile.
3. Ixesha lokuphendula:
Ixesha elithathiweyo ukuphendula kwi-valve yokulawula emva kokutshintsha isignali yokuguqula ixesha lokuphendula kwi-valve yokulawula.Ivalve yokulawula ifumana ithuba lexesha elifileyo phambi kokuba isiqu seplagi singoyise ukukhuhlana ukusuka ekupakisheni kwaye siqalise ukuhamba.Kukwakho nexesha lexesha lokusebenza elifunekayo ukuhambisa umgama ofunekayo.Kuyimfuneko ukuqwalasela umphumo wale miba ekulawuleni nasekukhuseleni inkqubo yonke.Kwivalve yokulawula elungileyo, ixesha lokuphendula kufuneka libe lincinci.
4. Iimpawu ezithile zenkqubo:
Ukumisela kwangaphambili ubukho okanye ukungabikho kokuzilinganisa, uluhlu lwenguqu kwisantya esifunekayo sokuhamba, isantya sokuphendula, njl.
5. Iimeko zolwelo:
Iimeko ezahlukeneyo ze-fluid zinokufumaneka kwiphepha ledatha yenkqubo, kwaye ezi zibe yimiqathango esisiseko yokukhethwa kwevalve yokulawula.Le ilandelayo yimiqathango ephambili eya kusetyenziswa:
- Igama lolwelo
- Amacandelo, ukwakheka
- Umgangatho wohambo
- Uxinzelelo (kuzo zombini iindawo zokungena neziphumayo zevalve)
- Ubushushu·
- Viscosity
- Uxinzelelo (umxhuzulane okhethekileyo, ubunzima bemolekyuli)
- Uxinzelelo lomphunga
- Iqondo lobushushu obugqithisileyo (umphunga wamanzi)
6. Ulwelo, iimpawu ezikhethekileyo:
Ubani ufanele aqinisekise ubukho beengozi ezinokubakho ngokuphathelele ubume bolwelo, ukudleka, okanye ukuthamba.
7. Ukubaleka:
Kwimeko apho i-valve yokulawula enye ayikwazi ukubonelela ngoluhlu oluyimfuneko, ukuqwalaselwa kokusetyenziswa kwee-valve ezimbini okanye ngaphezulu kuba yimfuneko.
8. Uxinzelelo lwevalvu eyahlukileyo:
Ireyithi yokulawula ilahleko yoxinzelelo lwevalve kwinkqubo yombhobho yingxaki enzima.Njengoko umyinge woxinzelelo lokwahlukana kwevalve uhla ngokunxulumene nelahleko yoxinzelelo iyonke yenkqubo yonke, iimpawu zokuqukuqela ezifakiweyo zisuka kwiimpawu zokuqukuqela okungokwemvelo.Nangona kungenakwenzeka ukwenza ngokubanzi, ixabiso le-PR phakathi kwe-0.3 kunye ne-0.5 lidla ngokukhethwa.
9. Uxinzelelo lokuvala:
Ixabiso eliphezulu loxinzelelo oluhlukeneyo kwixesha lokuvala i-valve yokulawula idatha ebalulekileyo ekufuneka isetyenziswe ekukhethweni kwe-activator kunye nokuqinisekisa ukuyila okuqinileyo okwaneleyo kwinxalenye nganye yevalve yokulawula.
Uyilo apho uxinzelelo lokuthatha lubekwe ngokulingana noxinzelelo oluphezulu lokuvala luninzi, kodwa le ndlela inokubangela ukucaciswa okungaphezulu kweevalvu.Ngaloo ndlela kuyimfuneko ukuqwalasela iimeko zokusetyenziswa kwangempela xa kuchongwa uxinzelelo lokuvala.
10. Ukuvuza kwesitulo sevalve:
Kufuneka kuqinisekiswe ngokucacileyo ubungakanani bokuvuza kwesihlalo esinokunyanyezelwa ngexesha lokuvalwa kwevalvu.Kukwayimfuneko ukwazi amaxesha amaninzi apho imeko yokuvalwa kwevalve kwenzeka.
11. Ukusebenza kweValve:
Kukho ubukhulu becala iindidi ezimbini zokusebenza kwivalvu yolawulo:
Ukusebenza ngokwesiginali yokufakwa kwevalvu:Ulwalathiso lokuvula kunye nokuvala i-valve luhlengahlengiswa ngokubhekiselele ekubeni isignali yegalelo kwi-valve iyanda okanye iyancipha, kodwa ukusebenza akufani nokungaphumeleli kokusebenza.Xa i-valve ivala ngenxa yegalelo elongezelelweyo, oku kubizwa ngokuba yisenzo esithe ngqo.Xa i-valve ivula ngenxa yokunyuka kwesignali yegalelo, oku kubizwa ngokuba yisenzo sokubuyela umva.
Umsebenzi ongaphumeleliyo:Ukuhamba komsebenzi we-valve kwindlela ekhuselekileyo yenkqubo xa kwenzeka uphawu lokufaka kunye nokunikezelwa kwamandla.Utyando luhlelwa “njengokusilela komoya kufutshane,” “vula,” okanye “tshixa.”
12. Ukuthintela ukudubula:
Ngokusekelwe kwindawo apho ivelufa ifakelwe ivelufa yokulawula ifuna umlinganiselo owaneleyo wokumelana nokudubula, omabini umbane osetyenziswa nesivalo kufuneka ube nobungqina bokudubula.
13. Ubonelelo lwamandla:
Ukunikezelwa kwamandla omoya kwi-valve actuation kufuneka kube ngokwaneleyo kwaye kubalulekile ukubonelela ngomoya ococekileyo ngamanzi, ioli kunye nothuli olususiweyo ukwenzela ukuba iindawo ezifana ne-actuator kunye ne-positioner zisebenze ngaphandle kokusilela.Kwangaxeshanye, umntu kufuneka amisele uxinzelelo olusebenzayo kunye namandla ukuze akhusele amandla awoneleyo asebenzayo.
14. Iinkcukacha zombhobho:
Qinisekisa iinkcukacha zemibhobho apho i-valve yokulawula ifakwe khona.Iimpawu ezibalulekileyo zibandakanya ububanzi bombhobho, imigangatho yepayipi, umgangatho wezinto eziphathekayo, uhlobo lokudibanisa kwipayipi, njalo njalo.
Ixesha lokuposa: Apr-06-2022