0102030405
Ukwethulwa kafushane kwamavalvu esango
2020-04-07
Isimiso esi-1 sokusebenza kanye nomsebenzi we-valve yesango: I-valve yesango iyingxenye yohlobo lwe-valve yebhulokhi, evame ukufakwa epayipini enobubanzi obungaphezu kuka-100mm ukuvimba noma ukuxhuma ukugeleza okuphakathi epayipini. Njengoba i-disc iyipuleti yesango, ngokuvamile ibizwa ngokuthi i-valve yesango. I-valve yesango inezinzuzo zamandla amancane okushintsha kanye nokumelana nokugeleza okuncane. Kodwa-ke, indawo yokubeka uphawu kulula ukuyigqoka futhi ivuze, i-stroke yokuvula inkulu, futhi ukugcinwa kunzima. I-valve yesango ayikwazi ukusetshenziswa njenge-valve yokulawula. Kumelwe ibe sesimweni esivuleke ngokugcwele noma esivaleke ngokugcwele. Isimiso sokusebenza sithi: lapho i-valve yesango ivaliwe, isiqu sihamba siye phansi kuye ngobude bendawo yokuvala i-valve yesango kanye nendawo yokuvala isihlalo se-valve, eshelelayo, eyisicaba futhi engaguquki. Ayalingana ukuze avimbele i-medium ukuthi ingagelezi, futhi athembele ku-wedge ephezulu ukukhulisa umphumela wokuvala. Ukuvalwa kwayo kuhamba kuqonde emgqeni omaphakathi. Kunezinhlobo eziningi zama-valve esango, ezingahlukaniswa zibe uhlobo lwe-wedge kanye nohlobo oluhambisanayo. Uhlobo ngalunye luhlukaniswe inqama eyodwa nenqama ephindwe kabili. Isakhiwo se-2: Umzimba we-valve yesango usebenzisa ifomu lokuzivala. Imodi yokuxhuma yesembozo se-valve kanye nomzimba we-valve ukusebenzisa ukucindezela okuphezulu kwe-medium ku-valve ukucindezela ukupakisha kokuvala ukuze kuzuzwe inhloso yokuvala. Ukupakishwa kwe-asbestos ngomfutho ophezulu ngocingo lwethusi kusetshenziselwa ukuvala i-valve yesango. Isakhiwo se-valve yesango sakhiwe ikakhulukazi umzimba we-valve, ibhonethi, ifreyimu, isiqu, idiski ye-valve yesokunxele nesokudla, idivaysi yokuvala uphawu, njll. Impahla yomzimba ye-valve ihlukaniswe ngensimbi ye-carbon steel ne-alloy steel ngokuya ngengcindezi kanye nezinga lokushisa kwendawo yepayipi. . Ngokuvamile ifakwe ku-valve yesistimu ye-steam eshisa kakhulu, t> 450 ℃, umzimba we-valve wenziwe nge-alloy material, njenge-valve yokukhipha i-boiler, njll. I-valve yomzimba insimbi ye-carbon. Amavalvu esango ngokuvamile afakwa kumapayipi amanzi esitimu ane-DN ≥ 100mm. Kunezinhlobo ezintathu zamadayamitha okuzisholo we-valve yesango esigabeni sokuqala wgz1045 / 17.5-1 kubhayela e-Zhangshan, okungukuthi i-DN300, i-dnl25 ne-dnl00.