Ukukhetha i-Butterfly Valve: Ungakukhetha kanjani phakathi kwesipele esithambile nophawu olunzima?

I-butterfly valveUkukhetha: Ungakukhetha Kanjani phakathi KwePoft Seal ne-Hard Seal?

Ekukhetheni ama-butterfly valves, ukukhetha phakathi kwama-valves we-butterfly athambile athambile kanye nama-butterfly butterfly valves athambile athinta ngokuqondile ukusebenza kokubekwa uphawu kohlelo, impilo yenkonzo nezindleko. Umehluko oyisisekelo phakathi kwalawa manga amabili ezintweni ezibonakalayo kanye nezimo ezisebenzayo, ezidinga ukwehlulelwa ngokuphelele ezicini ezintathu: izici eziphakathi nendawo, izinga lokushisa kanye nengcindezi.

Ukubopha uphawu okuthambile okuthambileama-ama-ama-butterfly valvesImvamisa isebenzisa irabha (njenge-nitrile rubber, irabha le-EPDM) noma i-fluoroplastic (efana ne-PTFE), enezinzuzo zokubekwa uphawu okuvuvukala kanye nokuvala okuphansi nokuvala. Lapho i-medium ishisa amanzi ahlanzekile amanzi, igesi noma i-aulitly liquid (okufana nokuthuthwa kwendle, indawo yokufudumeza yamanzi), kanye nengcindezelo ethambile i-valve ethambisayo ingafinyelela ukubekwa uphawu kwe-bubble eqondile), ikakhulukazi amapayipi athambile aphansi angakwazi ukuthola ukubekwa kwamanani aphezulu okuvuthwa komhlaba (njengamaphayiphu wokuthola amanzi). Kodwa-ke, kufanele kuqashelwe ukuthi umkhawulo ophezulu wokumelana nezinga lokushisa kwerabha uvame ukuba ngu-120 ℃, futhi ama-fluoroplastics kungu-180 ℃. Ukweqa leli banga kungenza ukuthi indawo ebopha uphawu ibe lukhuni noma i-deform, okuholela ekuvuzweni.

Ama-Butterfly Valves we-Hard Sikamuva afinyelela izinga lokushisa eliphakeme kanye nokuphikiswa okuphezulu kwengcindezelo ngensimbi (njengensimbi engenasici, i-hard alloy, i-hard alloy) ibe yinsimbi noma ngensimbi kuma-peamic ukubekwa uphawu Ezimweni zokusebenza zikaSteam, uwoyela we-thermal, igesi ephezulu (enjengaphezulu kwe-300 ℃) noma i-slurry media ye-valve eqinile ye-valve eqinile ingamelana nokuguga, kanye nempilo yenkonzo izikhathi ezi-3-5 ezenziwa ngophawu oluthambile. Isibonelo, ama-valves we-butterfly ahlanganisiwe ahlanganisiwe ahlanganisiwe asetshenziswa kakhulu kumapayipi wama-boile feedwater embonini yamandla. Isakhiwo sabo se-eccentric singanciphisa ukungqubuzana endaweni yokubopha uphawu, ngenkathi kulinganiselwa ukulinganisela izinga lokushisa nokuvula nokuvala ukuguquguquka.

Kunemibono emibili eyiphutha okufanele uqaphele lapho ukhetha umkhiqizo: Okokuqala, umuntu akufanele aphishekele izimpawu ezinzima. Uma kungekho zinhlayiya zokushisa okuphezulu ku-medium, izindleko eziphakeme kanye nokuvula okukhulu nokuvala ama-butterfly ama-butterfly abe yingozi; Okwesibili, ama-valves we-butterfly athambile athambile ≠ isilinganiso esiphansi sokucindezela. Ngokuqina komzimba we-valve futhi uqinise ukwakheka kokubekwa uphawu, amanye ama-butterfly athambile athambile angamelana nengcindezi ye-2.5MPA, kodwa isitifiketi sezinto ezibonakalayo (njenge-Wras, CE) idinga ukuqinisekiswa ngomenzi.

Isiphetho: Kuthathwe okuthambileama-ama-ama-butterfly valvesbakhethwa kwimidiya yokuhlanza amakamelo yokuhlanza, kuyilapho ivemvane elibomvana lubekwe uphawu lukhethwe ngemidiya yokushisa okushisa kakhulu; Uma izimo zokusebenza ziphakathi kwalezi ezimbili (ezinjengamanzi ashisayo ku-150 ℃), i-valve yakwavemvane eliyinhlanganisela elinombala wensimbi ofafazwe ngo-ceramic noma i-alloy enzima ingabhekwa ekusebenzeni kahle nezindleko.