Kuya kufuneka uyazi, ivalve nayo inomsindo wayo!

Okuya kusezantsi ukuvuza kwevalve yokuvala, kokukhona kungcono.Ukuvuza kwevalve yokutywina ethambileyo kokona kuphantsi.Ewe kunjalo, umphumo wokunqunyulwa ulungile, kodwa awuxhathisi kwaye unokuthembeka okubi.

1. Kutheni kulula ukushukuma xa ivalve yesitulo esiphindwe kabini isebenza ngokuvuleka okuncinci?
Ngondoqo omnye, ivalve inozinzo olulungileyo xa i-medium iqukuqela uhlobo oluvulekileyo, kunye nozinzo oluhlwempuzekileyo xa i-medium is flow ivaliwe.Ivalve yesitulo esiphindwe kabini ineentsimbi ezimbini, ivalve esezantsi ikwindawo yokuqukuqela evaliweyo, kwaye umbindi wevalve ephezulu ukwindawo evulekileyo.Ngale ndlela, xa i-valve isebenza kwindawo encinci yokuvula, i-valve evaliweyo ehambayo kulula ukubangela ukungcangcazela kwevalve, nto leyo ebangela ukuba i-valve yesitulo esiphindwe kabini ingasetyenziselwa umsebenzi omncinci wokuvula.

2. Kutheni ivalve yokutywina ingasetyenziswa njengevalve yokuvala?
I-advanteji yesiseko sevalve yesitulo esiphindwe kabini sisakhiwo solungelelwaniso lwamandla, evumela umahluko omkhulu woxinzelelo, kodwa intsilelo yayo ebalaseleyo kukuba imiphezulu emibini yokutywina ayinakunxibelelana kakuhle ngaxeshanye, okukhokelela ekuvuzeni okukhulu.Ukuba isetyenziswe ngokunyanzeliswayo kunye nokunyanzeliswa kwimeko yokunqunyulwa, umphumo ngokucacileyo awulungile.Nokuba uninzi lwenziwe ukuphuculwa kwayo (njengevalve yemikhono etywiniweyo ephindwe kabini), ayicebisi.

3. Loluphi uhlobo lwevalvu yokulawula istrowuku engasebenzi kakuhle kwaye ivelufa yokuhamba eyi-angular ine-anti blocking esebenza kakuhle?
Undoqo wevalve yevalve yestrowumbo ethe tye kukuthe nkqo, kwaye iphakathi kukuhamba okuthe tye ngaphakathi nangaphandle, ngoko ke indlela yokuhamba kwigumbi levalve kufuneka ijike kwaye ibuye umva, nto leyo eyenza ukuba indlela yokuhamba kwevalve ibenzima kakhulu (imilo efana “s” imilo).Ngale ndlela, kukho iindawo ezininzi ezifileyo, ezibonelela ngendawo yokuwa kwemvula yendawo ephakathi kwaye ibangele ukuvala ixesha elide.Icala elijikelezayo levalve yokuhamba nge-angular licala elithe tye.Isixhobo singena kwaye siphume ngokuthe tye, ngoko kulula ukukhupha into engcolileyo.Kwangaxeshanye, indlela yokuhamba ilula kwaye isithuba semvula ephakathi sincinci kakhulu, ngoko ke ukusebenza kwe-anti blocking yevalve yokuhamba kwe-angular kulungile.
4. Kutheni isiqu sevalve yokulawula istrowuku ethe ngqo sincinci?

Ibandakanya umgaqo olula womatshini: i-sliding friction enkulu kunye ne-rolling encinci.Isiqu sevalve yestroke ethe tye siyehla sinyuka.Ukuba ukupakishwa kucinezelekile kancinci, kuya kusongela intonga yevalve ngokuqinileyo kwaye ivelise umahluko omkhulu wokubuya.Ngenxa yesi sizathu, i-valve stem yenzelwe ukuba ibe yincinci kakhulu, kwaye ukupakishwa kudla ngokusetyenziswa kunye ne-PTFE ukupakisha nge-coefficient encinci ye-friction, ukwenzela ukunciphisa impazamo yokubuya.Nangona kunjalo, ingxaki kukuba i-valve stem incinci, kulula ukugoba kwaye ubomi bokupakisha bufutshane.Eyona ndlela yokusombulula le ngxaki kukusebenzisa i-valve ye-rotary stem, oko kukuthi, i-valve yokulawula uhlobo lwe-angle.Isiqu saso sinamaxesha angama-2-3 atyebileyo kunesiqu se-valve ye-stroke eqondileyo, kwaye i-graphite yokupakisha kunye nobomi obude benkonzo ikhethiwe.Ukuqina kwentonga yevalve kulungile, ubomi bokupakisha bude, kwaye i-torque yayo ye-friction incinci kwaye umahluko wokubuya uncinci.

5. Kutheni umahluko woxinzelelo olusikiweyo wevalve ye-engile yestroke mkhulu?
Umahluko omkhulu wokunqunyulwa koxinzelelo lwevalve ye-engile yestroke kungenxa yokuba amandla avela kwindawo ephakathi kumbindi wevalve okanye ipleyiti yevalvu ivelisa itorque encinci kakhulu kwishaft ejikelezayo, ngoko inokumelana noxinzelelo olukhulu.

6. Kutheni ubomi benkonzo yevalve yebhabhathane enerabha enentambo kunye nefluorine lined diaphragm valve esetyenziswa kumanzi anetyuwa bufutshane?
Kukho i-asidi yoxinzelelo ephantsi okanye i-alkali kwindawo yamanzi enetyuwa, eyonakalisa irabha.Ukusebenza kwerubha yokwanda, ukuguga, amandla aphantsi, kunye nevalve yebhabhathane enerabha enerabha, isiphumo sokusetyenziswa kwevalve ye-diaphragm ayilunganga, eyona nto iphambili kukumelana nokutyiwa kwerabha.Ivalve engasemva enerabha ene-diaphragm yaphuculwa ukuba ibe yivalve ene-fluorine diaphragm enokumelana nokudleka okulungileyo.Nangona kunjalo, i-membrane yevalve ye-fluorine ene-diaphragm ayikwazanga ukumelana nokusonga phezulu naphantsi, kubangela umonakalo womatshini kunye nokunciphisa ubomi benkonzo yevalve.Ngoku eyona ndlela ilungileyo kukusebenzisa i-valve yebhola ekhethekileyo yonyango lwamanzi, engasetyenziselwa iminyaka emi-5-8.

7. Kutheni ivalve yokuvala kufuneka itywinwe ngamandla?
Okuya kusezantsi ukuvuza kwevalve yokuvala, kokukhona kungcono.Ukuvuza kwevalve yokutywina ethambileyo kokona kuphantsi.Ewe kunjalo, umphumo wokunqunyulwa ulungile, kodwa awuxhathisi kwaye unokuthembeka okubi.Ngokwemigangatho ephindwe kabini yokuvuza okuncinci kunye nokutywinwa okuthembekileyo, ukutywinwa okuthambileyo kungcono kunokutywinwa okunzima.Njengomsebenzi ogcweleyo we-valve yokulawula ukukhanya kwe-ultra, itywinwe kwaye ifakwe ngokhuseleko lwe-alloy-resistant-resistant, ukuthembeka okuphezulu, izinga lokuvuza kwe-10-7, liye lakwazi ukuhlangabezana neemfuno zevalve yokuvala.

8. Kutheni ivalve yesitulo ingazange ithathe indawo yesitulo esinye nesiphindwe kabini?
Iivalve zemikhono, ezaphuma ngeminyaka yee-1960, zazisetyenziswa kakhulu ekhaya nakwamanye amazwe ngeminyaka yee-1970.Kwizityalo zepetrochemical eziveliswe kwi-1980s, iivalve zemikhono zibalelwa umlinganiselo omkhulu.Ngelo xesha, abantu abaninzi babekholelwa ukuba iivalvu zemikhono zinokuthatha indawo yesitulo esinye kunye nesihlala kabini kwaye zibe zimveliso zesizukulwana sesibini.Ukuza kuthi ga ngoku, akunjalo.Ivalve yesitulo esinye, ivalve yesitulo esiphindwe kabini kunye nevalve yomkhono zonke zisetyenziswa ngokulinganayo.Oku kungenxa yokuba ivalve yomkhono iphucula kuphela indlela yokugobhoza, uzinzo kunye nokugcinwa kwayo, kodwa ubunzima bayo, i-anti blocking kunye nezalathi zokuvuza ziyahambelana nezo zevalve yesitulo esinye kunye nevalve yesitulo esiphindwe kabini.Ingayibuyisela njani ivalve yesitulo esinye kunye nevalve yesitulo esiphindwe kabini?Ngoko ke, zinokusetyenziswa kuphela kunye.

9. Kutheni ukukhetha kubaluleke ngaphezu kokubala?
Xa kuthelekiswa nokubala, ukhetho lohlobo lubaluleke kakhulu kwaye lunzima.Ngenxa yokuba ukubala kubalwa kwefomula elula, ayixhomekeke ekuchanekeni kwefomula ngokwayo, kodwa ngokuchaneka kweeparameters zenkqubo enikeziweyo.Kukho imixholo emininzi ebandakanyekayo ekukhetheni imodeli.Ukuba ayiqapheli, kuya kukhokelela ekukhethweni okungafanelekanga, okungayi kubangela kuphela ukuchithwa kwabasebenzi, izixhobo eziphathekayo kunye nezibonelelo zemali, kodwa kubangele ezinye iingxaki ekusebenziseni, ezifana nokuthembeka, ubomi benkonzo kunye nomgangatho wokusebenza.