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Izilumkiso ezintandathu zokuthengwa kwevalvu

一. Ukusebenza kwamandla

Ukusebenza kokuqina kwevalve kubhekiselele ekukwazini kwevalve ukumelana noxinzelelo lwesixhobo esiphakathi. I-valve yimveliso yomatshini ethwele uxinzelelo lwangaphakathi, ngoko kufuneka ibe namandla okwaneleyo kunye nokuqina ukuze kuqinisekiswe ukusetyenziswa kwexesha elide ngaphandle kokuqhekeka okanye ukuguqulwa.

二. Ukusebenza kokutywina

Ukusebenza kokutywina kwevalve kubhekiselele ekukwazini kwenxalenye nganye yokutywina yevalvu ukuthintela ukuvuza kwendawo ephakathi. Yeyona nto ibalulekileyo yesalathiso sobugcisa bevalve. Ivalve ineendawo ezintathu zokutywina: unxibelelwano phakathi kwendawo yokuvula kunye nokuvala kunye neendawo ezimbini zokutywina zesihlalo sevalve; indawo ehambelanayo phakathi kokupakisha kunye nesiqu sevalve kunye nebhokisi yokufaka; uqhagamshelwano phakathi komzimba wevalve kunye nebhonethi. Ukuvuza kwangaphambili kubizwa ngokuba kukuvuza kwangaphakathi, okubizwa ngokuqhelekileyo njengokuvalwa kwe-lax, okuya kuchaphazela amandla e-Taike valve ukunqumla i-medium. Kwiivalvu zokuvala, ukuvuza kwangaphakathi akuvumelekanga. Oku kuvuza kubini kokugqibela kubizwa ngokuba kukuvuza kwangaphandle, oko kukuthi, ukuvuza okuphakathi ukusuka ngaphakathi kwevalve ukuya kumphandle wevalve. Ukuvuza kunokubangela ukulahleka kwezinto, kungcolise indalo, kwaye kubangele iingozi kwiimeko ezinzima. Kwimithombo yeendaba ezinokutsha, eziqhumayo, ezinetyhefu okanye ezine-radioactive, ukuvuza kwangaphandle akuvumelekanga, ngoko ke iivalve zeTaike kufuneka zibe nokusebenza okuthembekileyo kokutywinwa.

三, ephakathi

Emva kokuba i-valve ihamba nge-valve, ilahleko yoxinzelelo (umahluko woxinzelelo phakathi kwe-valve yangaphambili nangasemva) iya kwenzeka, oko kukuthi, i-valve inokumelana okuthile nokuhamba kwe-medium, kwaye i-medium isebenzisa inani elithile le-valve. amandla ukoyisa ukuxhathisa kwevalve. Ukususela kumbono wogcino lwamandla, xa kuyilwa kunye nokuvelisa i-valve, ukuchasana kwe-valve ukuya kwindawo ehambayo kufuneka kuncitshiswe kangangoko kunokwenzeka.

Amandla okunyusa kunye nomzuzu wokuphakanyiswa Amandla okuphakamisa kunye nomzuzu wokuphakanyiswa kubhekiselele kumandla okanye umzuzu ekufuneka ufakwe kwivalve ukuvula okanye ukuvala. Xa uvala ivalve, kuyimfuneko ukwenza uxinzelelo oluthile lwetywina phakathi kwendawo yokuvula kunye nokuvala kunye neendawo ezimbini zokutywina zesihlalo, kwaye kwangaxeshanye unqobe umsantsa phakathi kwesiqu sevalve kunye nokupakishwa, intambo phakathi Isiqu sevalve kunye nenati, kunye nenkxaso ekupheleni kwesikhondo sevalve. Amandla okukhuhlana kwamanye amacandelo e-friction, ngoko ke, kufuneka kusetyenziswe amandla athile okuvala kunye ne-torque yokuvala. Ngethuba lokuvula kunye nokuvala inkqubo ye-valve, ukuvulwa okufunekayo kunye nokuvala amandla kunye nokuvula kunye ne-torque yokuvala kutshintshwa, kwaye ixabiso eliphezulu likwixesha lokugqibela lokuvala okanye ukuvula Ukuqala kwangoko. Xa uyila kunye nokuvelisa iivalve, zama ukunciphisa amandla abo okuvala kunye ne-torque yokuvala.

四, ukuvula nokuvala isantya

Isantya sokuvula kunye nokuvala sibonakaliswa ngexesha elifunekayo ukuze i-valve igqibe isenzo sokuvula okanye sokuvala. Ngokuqhelekileyo, akukho mfuneko engqongqo kwisantya sokuvula kunye nokuvala i-valve, kodwa ezinye iimeko zokusebenza zineemfuno ezikhethekileyo zokuvula nokuvala isantya. Ukuba ezinye zifuna ukuvulwa ngokukhawuleza okanye ukuvala ukuthintela iingozi, ezinye zifuna ukuvalwa okucothayo ukuthintela ihamile yamanzi, njl njl. Oku kufuneka kuqwalaselwe xa ukhetha uhlobo lwevalvu.

五. Uvakalelo lwesenzo kunye nokuthembeka

Oku kubhekiselele kubuntununtunu bevalvu ukuphendula utshintsho kwiiparamitha zemidiya. Kuba iivalve ezinemisebenzi ethile efana ne-throttle valves, i-valve yokunciphisa uxinzelelo, kunye ne-valve yokulawula, kunye neevalve ezinemisebenzi ethile efana neevalvu zokhuseleko kunye nezibatha, uvakalelo lwabo olusebenzayo kunye nokuthembeka kubaluleke kakhulu izibonakaliso zokusebenza zobugcisa.

六, ubomi benkonzo

Ibonisa ukuqina kwevalve, isalathiso esibalulekileyo somsebenzi wevalve, kwaye inokubaluleka okukhulu kwezoqoqosho. Ngokuqhelekileyo ibonakaliswe ngokwenani lokuvula kunye nokuvalwa okunokuqinisekisa iimfuno zokutywinwa, kwaye kunokubonakaliswa ngokwemiqathango yokusetyenziswa kwexesha.

Ngokumalunga neentlobo zeevalvu ezisetyenzisiweyo, oomatshini, isinyithi, i-petrochemical, ikhemikhali, ukwakhiwa kwedolophu kunye namanye amashishini anezona ntlobo zininzi zeevalvu. Ngokukodwa kumashishini oomatshini, zonke iintlobo zeevalvu zisetyenziswa ngokusisiseko. Ukongeza kumashishini oomatshini, iivalve zebhabhathane zisetyenziswa ikakhulu kwi-petrochemical and metallurgy; iivalvu ze-diaphragm zisetyenziswa ikakhulu kwi-metallurgy, amandla ombane kunye neshishini lemichiza; iivalve itshekhi zisetyenziswa ikakhulu metallurgy, ishishini imichiza kunye petrochemical; iivalvu zokumisa zisetyenziswa ikakhulu kushishino lwepetroleum kunye neekhemikhali; iivalve zebhola zisetyenziswa ikakhulu kwi-petroleum, ishishini leMichiza kunye nesinyithi; ivalve yokulawula isetyenziswa ikakhulu kushishino lweekhemikhali, isinyithi, amandla ombane nokutya; Ivalve yokunciphisa uxinzelelo isetyenziswa ikakhulu kwi-petrochemical, kushishino lweekhemikhali kunye nesinyithi.


Ixesha lokuposa: Sep-30-2021