I-Globe Control Valve

Uhlobo Lwekheji Ivalve Yokulawula Isihlalo Sodwa Sesihlalo Somhlaba

I-Cage Yohlobo Lwesihlalo esisodwa I-Globe Control Valve ithatha isakhiwo esiqondiswe sekheji kanye nepulaki elilinganiselwe lokucindezela. Ifanele izicelo ezinomfutho ophakeme wokuhluka. Ukuvala okulinganiselayo kungena esikhundleni sesihlalo esiphezulu ukuze kushintshwe isakhiwo sevalvu yekheji enezihlalo ezimbili sibe yisakhiwo esinesihlalo esisodwa sekheji. Lokhu kuthuthukiswa kuthuthukise kakhulu isigaba sokuvala i-valve yekheji. Ipulaki isebenzisa isakhiwo esilinganiselayo sokucindezela, amandla okuvula nawokuvala aphansi kanti indawo ephakathi ngaphansi kwezimo zesevisi enomfutho ophakeme ohlukile ingalawulwa ngokucindezela okuphansi kwe-actuator. isetshenziselwa kakhulu ukulawula uketshezi kumapayipi okushisa aphakathi nendawo naphansi kanye nengcindezi ephakathi nendawo nephansi edinga ukuzinza okuhle okuguquguqukayo. Inezici ezifana nokusebenza okuhle kokuvala, ukucindezela okuphezulu okuvumeleke okuhlukile, ukuqondisa kwekheji, indawo enkulu yokuqondisa, ukuzinza okuhle kanye nesakhiwo esihlangene, imoto ibona ukushintshwa okusheshayo kokunquma kulayini ngokusebenza kahle kokulungisa, ukonga abasebenzi nesikhathi. Isakhiwo sepulaki yebhalansi siqinisekisa ukuthi i-actuator thrust edingekayo iphansi kakhulu.

Uhlobo Lwekheji Ivalve Yokulawula Yezihlalo Ezimbili

I-HCB Pneumatic Cage Type ye-Double-seat Globe Control valve isebenzisa isakhiwo esiqondisiwe sekheji kanye nepulaki elilinganiselwe lokucindezela. Ihlukile Kohlobo Lwekheji Lesihlalo esisodwa, lolu hlobo lwevalvu yokulawula ithatha uhlobo lwekheji isakhiwo sezihlalo ezimbili futhi isetshenziswa kakhulu ezinhlelweni ezingenazo izidingo eziphezulu zokuvala. Njengoba yamukela isakhiwo esinezihlalo ezimbili, futhi ubuso obubili bokuvala buyinsimbi, izinga lokushisa libanzi. Ipulaki lisebenzisa isakhiwo esilinganiselayo sokucindezela amandla okuvula nawokuvala aphansi futhi abezindaba ngaphansi kwezimo zesevisi ezinomfutho ophakeme ohlukile bangalawulwa ngokucindezela okuphansi kwe-actuator. Ama-lts asetshenziselwa kakhulu ukulawula uketshezi kumapayipi okushisa okuphakathi nendawo naphansi futhi adinga ukuzinza okuhle okuguquguqukayo, Enezici ezifana nokusebenza okuhle kokuvala, ukucindezela okuphezulu okuvumelekile okuhlukile, isiqondiso sekheji, indawo enkulu eqondisayo, ukuqina okuhle kanye nesakhiwo esihlangene, ingakwazi ukubona ukushintshwa okusheshayo kwezinqamuleli kulayini ngokulungiswa okuphezulu, ukonga abasebenzi kanye nesikhathi. Isakhiwo sepulaki yebhalansi siqinisekisa ukuthi i-actuator thrust edingekayo iphansi kakhulu.

I-Multi-hole Low Noise Control Valve

I-pneumatic Multi hole Low Noise Control Valve isebenzisa isakhiwo esiqondiswa umkhono kanye nepulaki elinganiselayo ngokucindezela.iyivalvu yokulawula ukusebenza okuphezulu enokuqina okuhle okuguquguqukayo elungele izimo zesevisi ezinzima. Njengoba umehluko uphezulu uma kuqhathaniswa nesivinini sokugeleza se-medium siphezulu, izinsimbi zizoguguleka kakhulu futhi zilimale futhi kuzokhiqizwa umsindo omkhulu. Ngakho-ke, sishintsha umkhono wefasitela ojwayelekile ube umkhono we-multichoke. oketshezini indlela yokugeleza ngokuvamile iphuma phezulu futhi iphansi, futhi ukudonsa kwezimbobo eziningi kwenza okuphakathi kwenze ukungqubuzana ngaphakathi komkhono, ukuze kudle amandla angaphakathi futhi kunciphise isivinini sokugeleza. Ngegesi kanye nemidiya, isiqondiso sokugeleza ngokuvamile siphansi futhi siphuma phezulu, ukuze i-ga medium ifinyelele ukunwetshwa kwevolumu ngemuva kwesihlalo ngemva kokudonsa umkhono we-multi-hole kanye nokucindezela okuphakathi kuyancishiswa ukuze kwehle isivinini sokugeleza. Izingxenye zalolu hlobo lwevalvu yokulawula ziyakwazi ukushintshana nalezo ze-Cage Type single seat Control Valve ngaphandle kokuthi umkhono uguqulwa ube uhlobo lwe-Mult-hole
Multi-Stage Pressure drop control valve

I-valve yokulawula ukwehla kwe-Pressure yezigaba eziningi isebenzisa isakhiwo esiqondiswa umkhono kanye nepulaki elilinganiselwe lokucindezela. isetshenziswa ikakhulukazi ezimweni zesevisi ezinokucindezela okuphezulu okuhlukile kanye nezinhlelo zokusebenza ezikhiqiza i-flash evaporation kanye ne-cavitation. Ngokuya ngamapharamitha ahlukene, yakhelwe ngamakheji e-pressure drop ahlukene akha i-Multi-stage pressure drop drop trim. Amakheji aklanywe ngokwezimo ezihlukene zesevisi aqinisekisa ukuvela kokuhwamuka okusheshayo kanye ne-cavitation enanini kuyaqedwa. I-Throttling yenziwa kusukela ngesikhathi lapho ukuxhumana okuphakathi nekheji lokuqala, futhi ingcindezi ephezulu yokuhluka endaweni yokungena iyancipha kancane kancane ngemva kwezikhathi ezimbalwa zokudonsa. Ngakho-ke kuqinisekiswa ngokuphumelelayo ukuthi ukucindezela kuhlale kungaphezu kokucindezela komphunga ogcwele lapho ukugeleza okuphakathi ku-valve, kanye nokuvela kwe-flash evaporation kanye ne-cavitation kuqedwa, ukuze impilo yesevisi yombono wokulawula inde ngaphansi kwezimo ezinzima zesevisi.

Cavitation imbangela kanye nesixazululo

Isizathu se-Caviation
Lapho umfutho we-fluid wehliselwa ku-saturated vapor pressure noma uphansi, ukuhwamuka kwe-flash noma amabhamuza kuzokwenzeka.kuma-valve amaningi okulawula umfanekiso 5), ingcindezi yokungena ingu-p1, isivinini siyi-V1. Lapho uketshezi ludlula endaweni ye-plug necking, isivinini siyenyuka sibe yi-Vvc Ngokomgomo wokulondoloza amandla, ukucindezela koketshezi ngokuzumayo kuyehla ku-Pvc. Uma i-Pvc ilingana noma ingaphansi komfutho we-Pv ogcwele umhwamuko owuketshezi, uketshezi luzofakwa igesi kanye namabhamuza azokhiqizwa, ukuze kwenzeke ukuhwamuka kwe-flash. Ngemva kokuba uketshezi ludlule kupulaki, ingcindezi iqala ukubuyiselwa futhi amandla e-kinetic adluliselwe emandleni angaba namandla futhi Lapho ukucindezela kubuyiselwa ekucindezelweni okuphansi komfula, okuvezwa njenge-p2 futhi isivinini siyi-V2. Lapho ingcindezi ebuyiselwe idlula i-saturated vapor pressure Pv, amabhamuza akhiwe azophulwa futhi i-cavitation izokwenzeka. Lolu hlobo lokukhululwa kwamandla luzokhuphula ingcindezi ngokwengxenye ukuze ibe ngaphezu kuka-200000psl (1400MPa) futhi ingcindezi izobhubhisa ngokushesha ipulaki eliqinile.

Isixazululo ku-Cavitation

I-valve yokulawula i-labyrinth ingaqeda ngempumelelo umonakalo odalwe ukwehluleka ukulawula isivinini soketshezi. Okokuqala, uketshezi luhlakazeka emiseleni eminingi emincane yokugeleza. Ngakho-ke, ngisho nalapho ama-bubbles akhiwa, umthamo wabo mncane kakhulu futhi amandla awanele ukukhiqiza ukucindezeleka okungalimaza izinto, okwesibili, isivinini sokugeleza sigcinwa ezingeni eliphansi kakhulu. Ngakho-ke, ukucindezela okuyingxenye ngeke kwehliswe ukuze kube ngaphansi kunomfutho we-fluid vaporizing. Ngakho-ke, i-cavitation ngeke yenzeke. Umonakalo obangelwa i-cavitation isignali evamile ebonisa ukwehluleka kokulawula ukugeleza kwesivinini. Njengoba kushiwo ngenhla, ukwamukelwa kwezinto ezinobunzima obuphezulu, umkhono we-insulating noma i-orifice ephansi kuzoqeda kuphela inani elincane lamaphutha ku-valve okubangelwa i-cavitation. Ijubane eliphezulu eliphansi lizodala i-cavitation futhi kulimaze ipulaki, futhi isisombululo se-cavitation siwukwamukela i-labyrinth cage njengoba kuboniswe esithombeni.

• Amanani e-KV ahlobene wevalvu yokulawula imbulunga kanye ne-Travel (EQ% / Linear)