Izinto eziphambili ekufuneka ziqwalaselwe xa kuyilwaiivalve butterflyzezi:

1. Iimeko zenkqubo yenkqubo yenkqubo apho i-valve ikhona

Ngaphambi kokuyila, kufuneka uqale uqonde ngokupheleleyo iimeko zenkqubo yenkqubo yenkqubo apho i-valve ikhona khona, kubandakanywa: uhlobo oluphakathi (igesi, ulwelo, isigaba esiqinileyo kunye nesigaba esibini okanye umxube wezigaba ezininzi, njl.), ukushisa okuphakathi, okuphakathi uxinzelelo, ukuhamba okuphakathi (okanye izinga lokuhamba), umthombo wamandla kunye neeparamitha zayo, njl.

1) Uhlobo lwemidiya

Iivelufa butterflyulwakhiwo ludla ngokuyilwa ngokwendlela ephambili, kodwa imidiya encedisayo, njengaleyo isetyenziselwa ukucoca, ukuvavanya nokucoca, nayo kufuneka iqwalaselwe. Ukuncamathela kunye nokubekwa kwesiphakathi kunempembelelo kuyilo lwesakhiwo sevalvu; ngelo xesha, ingqwalasela engakumbi kufuneka ihlawulwe kwimpembelelo ye-corrosiveness ye-medium kwisakhiwo kunye nezixhobo.

2) Ubushushu obuphakathi

Iingxaki ezinokuthi zibe kho ziquka: ① Ukwandiswa kwe-thermal okwahlukileyo: Iqondo lobushushu elahlukileyo okanye i-coefficients yokwandiswa iya kubangela ukwanda okungalinganiyo kweperi yevalve yokutywina, okubangela ukuba ivalve inxinge okanye ivuze xa ivula okanye ivala. ② Utshintsho kwiimpawu eziphathekayo: Ukunciphisa uxinzelelo oluvumelekileyo lwezixhobo kumaqondo okushisa aphezulu kufuneka kuthathelwe ingqalelo ngexesha loyilo. Ukongeza, ukukhwela ibhayisekile nge-thermal ngamanye amaxesha kunokubangela utshintsho lwe-dimensional njengoko iindawo ezikhula kumaqondo obushushu aphezulu zinokuvuna ekuhlaleni. ③Uxinzelelo lobushushu kunye nomothuko wobushushu.

3) Uxinzelelo oluphakathi

Ichaphazela kakhulu amandla kunye nokuqina koyilo lweendawo ezithwele uxinzelelo lweivelufa butterfly, kunye noyilo loxinzelelo oluthile oluyimfuneko kunye noxinzelelo oluthile oluvumelekileyo lwesibini sokutywina.

4) Ukuhamba okuphakathi

Ichaphazela kakhulu ukuxhathisa ukhukuliseko lomjelo wevalve yebhabhathane kunye nomphezulu wokutywina, ngakumbi kwi-gas-eqinile kunye ne-liquid-solid yesigaba sesibini semidiya yokuhamba, ekufuneka iqwalaselwe ngononophelo.

5) Ukunikezelwa kwamandla

Iiparamitha zayo zichaphazela ngokuthe ngqo ukuyila konxibelelwano lwe-interface, ixesha lokuvula kunye nokuvala, uvakalelo lokuqhuba kunye nokuthembeka kwevalve yebhabhathane. Utshintsho kumbane wonikezelo lwamandla kunye nokuqina kwangoku kunempembelelo encinci kwivalve. Ngokukodwa, uxinzelelo kunye nokuhamba komthombo womoya kunye nomthombo we-hydraulic kuya kuchaphazela ngokuthe ngqo ukufezekiswa komsebenzi we-valve butterfly.

2. Umsebenzi wevalvu yebhabhathane

Xa uyila, kufuneka kucace ukuba i-valve ye-butterfly isetyenziselwa ukudibanisa okanye ukunqumla i-medium kumbhobho, okanye ukulawula nokulawula ukuhamba kunye noxinzelelo lwe-medium kumbhobho. Izinto eziqwalaselwe kuyilo lokutywinwa kweevalve zolawulo ezinemisebenzi eyahlukeneyo ziyahluka. Ukuba ivalve isetyenziselwa ukudibanisa okanye ukusika i-medium kumbhobho, umthamo we-cutoff wevalve, oko kukuthi, ukusebenza kokutywina kwevalve, kubalulekile ukuqinisekisa ukuba okukhethiweyo Phantsi kwesiseko sokuba izinto kufuneka zibe ngumhlwa- ukuxhathisa, okuphantsi, okuphakathi koxinzelelo kunye neevalvu zeqondo lokushisa eliqhelekileyo zihlala zithatha isakhiwo sokutywinwa okuthambileyo, ngelixa i-valve ephakathi, i-high-temperature kunye ne-high-pressure yokulawula i-valve isebenzisa isakhiwo sokutywinwa kanzima; ukuba ivalve isetyenziselwa ukulawula nokulawula i-medium kumbhobho Xa kuqwalaselwa izinga lokuhamba kunye noxinzelelo, iimpawu zokulawula ezihambelanayo kunye nomlinganiselo olawulayo wevalve ziqwalaselwa ikakhulu.