Ivalvu yesango kunyeivalvu yevivane zombili zidlala indima yokutjhugulula nokulawula ukugeleza ekusetjenzisweni kwepayipi. Kuliqiniso, kusese nendlela ehlelweni lokukhetha ivalvu yevivane nevalvu yesango. Ukuze kwehliswe ukutjhinga kwenhlabathi yepayipi enethiwekhi yokuphakelwa kwamanzi, ngokuvamileko amapayipi amakhulu anobubanzi afakwa amavalvu we-butterfly, angabi nomthelela omncani ekujuleni kwenhlabathi, begodu alwela ukukhetha amavalvu wesango.
Uyini umehluko phakathi kwevalvu yevithamini nevalvu yesango?
Ngokuya ngomsebenzi nokusetjenziswa kwevalvu yesango nevalvu ye-butterfly, ivalvu yesango inokujamelana nokugeleza okuncani nokusebenza okuhle kokuvala. Ngombana indlela yokugeleza kwepuleti yevalvu yesango ne-medium ise-engeli ejame ngqo, nangabe i-valve yesango ayikatjhugululwa endaweni yepuleti ye-valve, ukuhlanzwa kwe-medium epuletini le-valve kuzokwenza bona ipuleti ye-valve ithuthumele. , Kulula ukulimaza isivalo sevalvu yesango. Ivalvu ye-Butterfly, eyaziwa nangokuthi yi-flap valve, mhlobo we-valve yokulawula enesakhiwo esilula. Ivalvu ye-butterfly engasetjenziselwa ukulawula ukuvula nokuvala kwephayiphi ye-low-pressure medium kutjho bona ilunga lokuvala (idiski nofana ipuleti le-butterfly) lidiski, elijikeleza i-valve shaft ukufikelela ukuvulwa nokuvala. Ivalvu engasetjenziselwa ukulawula ukugeleza kwemihlobo ehlukileko yamanzi afana nomoya, amanzi, umtjhiso, izinto ezihlukahlukeneko ezibolako, udaka, amafutha, insimbi yamanzi kanye nezinto ezikhiqiza imisebe. Ikakhulukazi idlala indima yokusika nokugandelela epayipini. Ingcenye yokuvula nokuvala ivalvu ye-butterfly yipuleti ye-butterfly emise okwediski, ejikeleza i-eksisi yayo emzimbeni we-valve ukufikelela umnqopho wokuvula nokuvala nofana ukulungisa. Ipuleti levivane liqhutshwa yi-valve stem. Nayikuthi iphenduka iminyaka ema-90°, ingaqeda ukuvula nokuvala okukodwa. Ngokutjhugulula i-engele yokuphambuka kwediski, ukugeleza kwe-medium kungalawulwa.
Ubujamo bokusebenza kanye nendawo: Ivalvu ye-Butterfly ilungele ukudlulisa izinto ezihlukahlukeneko ezigugako nezingaguliko eenhlelweni zobunjiniyela ezifana nomkhiqizi, igesi yamalahle, igesi yemvelo, igesi yephethroliyamu, igesi yedorobha, umoya otjhisako nobandako, ukuncibilikisa ngamakhemikhali nokukhiqizwa kwamandla wokuvikela ibhoduluko, ukuphakelwa kwamanzi wokwakha nokukhipha amanzi, njll. lungisa begodu unqume ukugeleza kwesilinganiso.
Ivalvu yesango inesango lelunga elivulako nelivalako, indlela yokunyakaza kwesango iqondile endleleni yoketshezi, begodu ivalvu yesango ingavulwa ngokupheleleko begodu ivalwe ngokupheleleko. Ukwenza ngcono ukukhiqizwa kwayoor ikghono nokwenza ukuphambuka kwe-engele yokuvala ngesikhathi sokucubungula, isango leli libizwa ngokuthi isango elinamathela.
Lokha ivalvu yesango nayivaliweko, indawo yokuvala ingathembela kwaphela emfuthweni ophakathi ukuvala, okutjho bona, ithembele emfuthweni ophakathi ukugandelela indawo yokuvala yesango ukuya esihlalweni sevalvu ngakelinye ihlangothi ukuqinisekisa ukuvalwa kwendawo yokuvala, okuzivala ngokwayo. Inengi lamavalvu wesango avalwa ngamandla, okutjho bona, lokha ivalvu nayivaliweko, isango kufanele liphoqelwe esihlalweni sevalvu ngamandla wangaphandle ukuqinisekisa ukuqina kwendawo yokuvala.
Indlela yokunyakaza: Isango levalvu yesango lihamba emgqeni oqondileyo nesiqu sevalvu, okubizwa nangokuthiOS&Y ivalvu yesango. Ngokuvamileko, kuneentambo ezifana ne-trapezoid esigodlweni sokuphakamisa. Nge-nut ephezulu kwevalvu kanye nomsele wokuqondisa emzimbeni wevalvu, ukunyakaza okujikelezako kutjhuguluka kube kukunyakaza okuqondileko, okutjho bona, i-torque yokusebenza itjhugululwa ibe yi-operating thrust. Lokha i-valve nayivulwa, lokha ukuphakama kwesango kulingana nobubanzi be-valve ngo-1:1, umzila we-fluid awuvinjelwa ngokupheleleko, kodwana ubujamo lobu angeze bubekwa ilihlo ngesikhathi sokusebenza. Ekusetjenzisweni kwamambala, isihloko sesiqu sevalvu sisetjenziswa njengesibonakaliso, okutjho bona, indawo lapho ingavulwa khona, njengendawo yayo evulekileko ngokupheleleko. Ukuze kuthathelwe phezulu isenzakalo sokuvala ngenxa yokutjhuguluka kwamazinga womtjhiso, kuvame ukuvulwa endaweni ephezulu, bese ibuyela emuva ku-1/2-1 ukujika, njengendawo yevalvu evulekileko ngokupheleleko. Ngalokho-ke, ubujamo obuvulekileko be-valve bunqunywa ngokuya ngobujamo besango (okutjho ukushaya). Amanye ama-nuts wesiqu sevalvu yesango abekwa esangweni, begodu ukujikeleza kwesondo lezandla kwenza bona isiqu sevalvu sijikeleze, okwenza bona isango liphakame. Umhlobo lo wevalvu ubizwa nge-Rotary stem gate valve nofanaI-NRS ivalvu yesango.
Isikhathi sokuposa: Jul-14-2022
