Ivalvu yevithamini eyodwa engakajayeleki
Ukurarulula umraro wokukhipha hlangana nediski nesihlalo sevalvu yevalvu yevithamini ehlanganisiweko, kukhiqizwa ivalvu yevithamini eyodwa ehlukileko. Hlukanisa begodu wehlise ukukhipha okukhulu kwamaphethelo angaphezulu nangaphasi wepuleti yevithamini nesihlalo sevalvu. Kodwana, ngebanga lesakhiwo esisodwa esingakajayeleki, isenzakalo sokuklwebheka hlangana nediski nesihlalo sevalvu asinyamalali ngesikhathi soke sokuvula nokuvala kwevalvu, begodu ububanzi bokusetjenziswa bufana nalokho kwevalvu ye-butterfly ehlanganisiweko, njeke ayisetjenziswa khulu.
Ivalvu yevithamini ephindwe kabili
Ngokuya nge-valve ye-butterfly eyodwa engakajayeleki, ivalvu yevithamini ephindwe kabili esetjenziswa khulu njenganje. Ubujamo bayo kukuthi isikhungo se-shaft se-valve stem siphambuka esikhungweni sediski nesikhungo somzimba. Umphumela wokutjhuguluka okuphindwe kabili wenza bona idiski iphuke esihlalweni sevalvu msinyana ngemva kokuthi ivalvu ivulwe, okuqeda khulu ukukhipha okukhulu okungakafaneli nokuklwebheka hlangana nediski nesihlalo sevalvu, kwehlisa ukujamelana nokuvula, kwehlisa ukuguga, begodu kwenza ngcono ipilo yesihlalo. Ukukhuhla kwehliswa khulu, begodu ngesikhathi esifanako,ivalvu yevithamini ephindwe kabili angasebenzisa isihlalo sevalvu yensimbi, okwenza ngcono ukusetjenziswa kwevalvu ye-butterfly endaweni yamazinga aphezulu womtjhiso. Kodwana, ngombana umthetho wayo wokuvala ukwakhiwa kokuvala okusezingeni eliphezulu, okutjho bona, indawo yokuvala yediski nesihlalo sevalvu iyahlangana, begodu ukutjhuguluka kwe-elastic okubangelwa kukhutjhwa kwediski kwesihlalo sevalvu kuveza umphumela wokuvala, njeke ineemfuneko eziphezulu zendawo yokuvala (khulukhulu isihlalo sevalvu yensimbi), ukugandeleleka okuphasi, okwenza abantu bacabange amavalvu we-butterfly awajamelani nokugandeleleka okukhulu begodu anokuvuza okukhulu.
Ivalvu ye-butterfly ehlukileko
Ukujamelana nokutjhisa okuphezulu, kufanele kusetjenziswe isivalo esiqinileko, kodwana inani lokuvuza likhulu; ukuvuza, kufanele kusetjenziswe isivalo esithambileko, kodwana asijamelani namazinga womtjhiso aphezulu. Ukuze kunqotjhwe ukuphikisana kwe-valve ye-butterfly ephindwe kabili, i-butterfly valve beyi-eccentric okwesithathu. Ubujamo bayo bokwakheka kukuthi ngitjho nanyana isiqu sevalvu esiphindwe kabili sihlukile, i-eksisi ye-conical yendawo yokuvala idiski ithambekele ku-eksisi yesilinda yomzimba, okutjho bona, ngemva kokuvala kwesithathu, isigaba sokuvala sediski asitjhuguluki. Bese kuba siyingi samambala, kodwana i-ellipse, begodu ijamo lephasi layo lokuvala nalo alilinganiko, elinye ihlangothi litjhinga emgqeni ophakathi komzimba, bese kuthi elinye ihlangothi liqonde emgqeni ophakathi komzimba. Ubunjalo be-eccentricity yesithathu le kukuthi isakhiwo sokuvala sitjhugululwe khulu, akusekho ukuvala kwendawo, kodwana ukuvala kwe-torsion, okutjho bona, akuthembeli ekuguqukeni kwe-elastic yesihlalo se-valve, kodwana kuthembele ngokupheleleko emfuthweni wokuthintana wendawo yesihlalo se-valve ukufikelela umphumela wokuvala, Ngalokho-ke, umraro wokutjhiya kwe-zero isihlalo se-valve uyararululwa ukuwa kanye, begodu ngombana umfutho wephasi lokuthintana ulingana nomfutho ophakathi, umfutho ophakemeko nokujamelana nokutjhisa okuphezulu nakho kurarululwa lula.
Isikhathi sokuposa: Jul-13-2022
