Umahluko phakathi kwevalve yebhola ye-O kunye nohlobo lwe-V-valve yebhola.

Ivalve yebhola

Zininzi iintlobo zezakhiwo zeevalvu zebhola, kodwa ziyafana.Zonke ziyibhola eziziindawo zokuvula nokuvala ezingqukuva.Ubukhulu becala zenziwa sisitulo sevalve, ingqukuva, iringi yokutywina, isiqu sevalvu kunye nezinye izixhobo zokuqhuba.I-valve stem ijikelezwe ngama-degrees angama-90 ukufikelela Ukuvulwa kunye nokuvalwa kwevalve kusetyenziswa kumbhobho ukuvala, ukusabalalisa, ukulungelelanisa izinga lokuhamba kunye nokutshintsha indlela yokuhamba kwendawo.Isihlalo sevalve sisebenzisa iifom zokutywina zezihlalo ezahlukeneyo ngokweemeko ezahlukeneyo zokusebenza.Ngaphakathi kumzimba wevalve yevalve yebhola yohlobo lwe-O yingqukuva enombindi odlula umngxuma.Ingqukuva inomngxuma ophumela kwidayamitha elingana nobubanzi bombhobho.I-sphere inokujikeleza kwisihlalo sokutywina.umzimba ukuphumeza ukutywinwa.Ingundoqo yebhola yevalve yebhola yohlobo lwe-V inesakhiwo esine-V.Undoqo wevalve liqokobhe eliyi-1/4 elingqukuva elinenotshi emile okwe-V.Inomthamo omkhulu wokuhamba, uluhlu olukhulu oluhlengahlengiswayo, amandla okucheba, kunye nokuvalwa okuqinileyo.Izinto eziphathekayo ezineefayibha.

Ivalve yebhola yohlobo lwe-O:

Ngaphakathi kumzimba wevalve yevalve yebhola yohlobo lwe-O yingqukuva enombindi odlula umngxuma.Ingqukuva inomngxuma ophumela kwidayamitha elingana nobubanzi bombhobho.I-sphere inokujikeleza kwisihlalo sokutywina.umzimba ukuphumeza ukutywinwa.Ngokujikelezisa ibhola nge-90 °, isalathiso somngxunya sinokutshintshwa, ngaloo ndlela siqonde ukuvulwa kunye nokuvala ivalve yebhola.Ivalve yebhola ye-O ithatha idizayini edadayo okanye esisigxina, kwaye iindawo ezihambayo ezihambelanayo zenziwe ngezinto zokuzithambisa kunye ne-coefficient encinci ye-friction, ngoko ke i-torque yokusebenza incinci.Ukongeza, ukutywinwa kwexesha elide kwegrisi yokutywina kwenza umsebenzi ube bhetyebhetye.Uncedo lwemveliso ngolu hlobo lulandelayo:

I-valve yebhola ye-1.O inokumelana nolwelo oluphantsi

Iivalvu zebhola ngokubanzi zinezakhiwo ezibini ezinobubanzi kunye nobubanzi obuncitshisiweyo.Kungakhathaliseki ukuba yiyiphi isakhiwo, i-coefficient yokumelana nokuhamba kwe-valve yebhola incinci.Ivalve yebhola eqhelekileyo luhlobo oluthe ngqo, ekwabizwa ngokuba yivalve yebhola egcweleyo.Ububanzi bomjelo bulingana nobubanzi obungaphakathi bombhobho, kwaye ilahleko yokuchasana kuphela ukuchasana kwe-friction yombhobho wobude obufanayo.Kuzo zonke iivalve, le valve yebhola ineyona ndlela incinci yokuxhathisa ulwelo.Kukho iindlela ezimbini zokunciphisa ukuchasana kwenkqubo yombhobho: enye kukunciphisa izinga lokuhamba kwamanzi ngokunyusa ububanzi bombhobho kunye nevalve, eya kwandisa kakhulu iindleko zenkqubo yombhobho.Okwesibini kukunciphisa ukuchasana kwendawo yevalve, kwaye i-valve yebhola iyona nto ikhethekileyo.

I-2.O-uhlobo lokutshintsha ivalve yebhola ikhawuleza kwaye ifanelekile

Ivalve yebhola idinga kuphela ukujikeleziswa kwe-90 ° ukugqiba ukuvula ngokupheleleyo okanye ukuvala ngokupheleleyo, ngoko inokuvulwa kwaye ivalwe ngokukhawuleza.

3. Ivalve yebhola ye-O inomsebenzi omhle wokutywina

Uninzi lwezihlalo zevalve yebhola zenziwe ngezinto ezilastiki ezifana ne-PTFE, ezidla ngokubizwa ngokuba ziivalve zebhola ezitywiniweyo.Ivalve yebhola etywiniweyo inokusebenza kakuhle kokutywinwa, kwaye iimfuno zoburhabaxa kunye nokuchaneka komatshini wokutywinwa komphezulu wevalve aziphezulu kakhulu.

4. Ivalve yebhola ye-O inobomi obude benkonzo

Ngenxa yeepropati ezilungileyo zokuzithambisa ze-PTFE okanye i-F4, i-coefficient ye-friction kunye ne-sphere incinci.Ngenxa yokuphuculwa kweteknoloji yokucubungula, uburhabaxa bebhola buyancipha, ngaloo ndlela buphucula kakhulu ubomi benkonzo yevalve yebhola.

5. Ivalve yebhola ye-O inokuthembeka okuphezulu

Izibini zokutywina phakathi kwebhola kunye nesihlalo se-valve aziyi kubandezeleka ngenxa yemikrwelo, ukugqoka ngokukhawuleza kunye nokunye ukusilela;

Emva kokuba i-valve stem iguqulelwe kuhlobo olwakhelwe ngaphakathi, ingozi efihliweyo yengozi yokuba i-valve stem inokubhabha ngenxa yokukhulula i-gland yokupakisha phantsi kwesenzo soxinzelelo lwe-fluid kupheliswa;

Ivalve yebhola ene-anti-static kunye nesakhiwo sokumelana nomlilo ingasetyenziselwa imibhobho yokuthutha ioli, igesi yendalo kunye negesi.Ukusuka kwimbono yesakhiwo, isihlalo sevalve yebhola ifakwe kwicala lesitulo sevalvu yomzimba ngexesha lokutywinwa.Amalungu ahambayo ahambelanayo ayenziwe ngezinto zokuzithambisa kunye ne-coefficient encinci ye-friction, ngoko ke i-torque yokusebenza incinci.Ukongeza, ukutywinwa kwexesha elide kwegrisi yokutywina kwenza umsebenzi ube bhetyebhetye.Ngokuqhelekileyo isetyenziselwa ukulungiswa kweendawo ezimbini, uphawu lokuhamba luvuleka ngokukhawuleza.Xa i-valve yebhola yohlobo lwe-O ivulwe ngokupheleleyo, amacala amabini awathintekiyo, enza umjelo wombhobho othe tye, kunye nokutywinwa kweendlela ezimbini, ezifanelekileyo kwiziganeko zokunqunyulwa kweendawo ezimbini ezizii-media ezingcolileyo kunye ne-fibrous.Undoqo webhola uhlala uvelisa i-friction kunye nevalve ngexesha lokuvula nokuvalwa kwevalve.Kwangaxeshanye, ukutywinwa phakathi kondoqo wevalve kunye nesihlalo sevalve kufezekiswa ngamandla okuqinisa ukutywina kwesihlalo sevalve ngokuchasene nombindi webhola, kodwa ngenxa yesitulo sevalve yokutywina ethambileyo, iipropathi ezigqwesileyo zoomatshini kunye nezomzimba ziyenza ilunge. itywiniwe.

Ivalve yebhola yohlobo lwe-V

Ingundoqo yebhola yevalve yebhola yohlobo lwe-V inesakhiwo esine-V.Undoqo wevalve liqokobhe eliyi-1/4 elingqukuva elinenotshi emile okwe-V.Inomthamo omkhulu wokuhamba, uluhlu olukhulu oluhlengahlengiswayo, amandla okucheba, kunye nokuvalwa okuqinileyo.Izinto eziphathekayo ezineefayibha.Ngokubanzi, iivalve zebhola zohlobo lwe-V ziivalve zebhola ezitywiniweyo enye.Ayilungelanga ukusetyenziswa macala omabini.

Umgca we-V, unqumle ukungcola.Ngexesha lokujikeleza kwebhola, umgca wemela owenziwe ngu-V webhola u-tangent kwisihlalo sevalve, ngaloo ndlela unqumla imicu kunye nezinto eziqinileyo kulwelo, ngelixa i-valve yebhola jikelele ayinalo msebenzi, ngoko kulula. ukwenza ukuba ukungcola kwefayibha kubambeke xa kuvalwa, nto leyo eyimfuneko ekugcinweni nasekulungisweni.Ulondolozo luzisa inkxwaleko enkulu.I-spool yevalve yebhola yohlobo lwe-V ayiyi kubanjwa yifiber.Ukongezelela, ngenxa yokusetyenziswa koxhumo lwe-flange, kulula ukudibanisa kunye nokudibanisa, akukho zixhobo ezikhethekileyo ezifunekayo, kunye nokugcinwa kulula.xa ivalve ivaliwe.Kukho isiphumo sesikere esimilise okwe-wedge phakathi kwenotshi emile okwe-V kunye nesitulo sevalvu, esingenamsebenzi wokuzicoca kuphela kodwa sinqanda ukuba ibhola ingaxingi.I-Stem spring, ngoko ke, i-torque yokusebenza incinci kwaye izinzile kakhulu.

Ivalve yebhola emile okwe-V sisakhiwo sokujikeleza se-right-angle, esinokuqonda ukulawulwa kokuhamba.Iyakwazi ukufikelela kwiidigri ezahlukeneyo zokulinganisa ngokwe-angle engu-V yebhola e-V.Iivalvu zebhola ezimilise u-V zisetyenziswa ngokubanzi kunye ne-valve actuators kunye ne-positioners ukuphumeza ulungelelwaniso olulinganayo.Undoqo wevalve emile okwe-V yeyona ifanelekileyo kwiziganeko ezahlukeneyo zohlengahlengiso, kunye ne-coefficient yokuqukuqela okukhulu okulinganiselweyo, umlinganiselo omkhulu ohlengahlengiswayo, isiphumo esihle sokutywina, ukusebenza kolungelelwaniso olubuthathaka, ubungakanani obuncinci, kwaye inokufakwa ngokuthe nkqo.Ilungele ukulawula igesi, umphunga, ulwelo kunye nezinye imidiya.I-valve yebhola yohlobo lwe-V yinkqubo ye-rotary ye-right-angle, equkethe i-V-type body valve, i-actuator ye-pneumatic, i-positioner kunye nezinye izixhobo;inophawu lokuqukuqela okungokwemvelo malunga nepesenti elinganayo;ithatha i-double-bearing structure, kunye ne-torque ephantsi yokuqala kunye nokusebenza okugqwesileyo.Uvakalelo kunye nesantya sokungeniswa, isakhono sokucheba kakhulu.