A:I-valve yokuphepha iyisesekeli esibalulekile sokuphepha kubhayela. Umsebenzi wayo uthi: lapho ukucindezela kubhayela wesitimu kungaphezu kwenani elishiwo (okungukuthi ukucindezela kokusuka kwe-valve yokuphepha), i-valve yokuphepha izovula ngokuzenzakalelayo i-valve ukuze ikhiphe isitimu ukuze ikhulule ingcindezi; lapho ukucindezela ku-boiler kwehla ku-value yokucindezela edingekayo (okungukuthi), i-valve yokuphepha ivalwa ngokuzenzakalelayo, ukuze i-boiler isetshenziswe ngokuphepha isikhathi esithile ngaphansi kwengcindezi evamile yokusebenza. Isikhathi eside, gwema ukuqhuma okubangelwa ukucindezela ngokweqile kwebhayili.
Inhloso yokufaka nokuguqula i-valve yokuphepha kubhayela iwukukhulula ingcindezi futhi ikhumbuze ibhoyili lapho ibhayela icindezelwe ngokweqile ngenxa yezici ezifana nokuhwamuka, ukuze kufezwe injongo yokusetshenziswa okuphephile. Amanye ama-boilers awafakelwe i-valve yomoya. Lapho amanzi engena esithandweni esibandayo ukuze aphakamise umlilo, i-valve yokuphepha isasusa umoya emzimbeni wesithando somlilo; liyageleza lihambe.
I-valve yokuphepha iqukethe isihlalo se-valve, i-valve core kanye nedivaysi yokukhuthaza. Iphaseji ku-valve yokuphepha ixhumana nesikhala se-steam se-boiler, futhi umgogodla we-valve ucindezelwa ngokuqinile esihlalweni se-valve ngamandla okucindezela akhiwe idivayisi yokucindezela. Lapho amandla okucindezela i-valve core engakwazi ukumelana nawo emakhulu kune-steam ephakathi kwe-valve, i-valve core inamathela esihlalweni se-valve, futhi i-valve yokuphepha isesimweni esivaliwe; lapho umfutho we-steam kubhayela ukhuphuka, amandla e-steam asebenza ku-valve core Ayanda, lapho amandla awo emakhulu kunamandla okucindezela umgogodla we-valve ongamelana nawo, umgogodla we-valve uzophakamisa esihlalweni se-valve, i-valve yokuphepha. izovuleka, futhi i-boiler izocindezela ngokushesha.
Ngenxa yokuphuma kwesitimu kubhayela, umfutho we-steam kubhayela uyancipha, futhi umfutho wesitimu ongawuthwala umgogodla we-valve uyancipha, ongaphansi kwamandla okucindezela umgogodla we-valve ongawathwala, futhi i-valve yokuphepha ivalwa ngokuzenzakalelayo.
Ama-boilers anesilinganiso sokuhwamuka okukhulu kuno-0.5t/h noma amandla ashisayo alinganiselwe amakhulu noma alingana no-350kW azofakwa amavalvu okuphepha amabili; ama-boilers anesilinganiso sokuhwamuka esingaphansi kuka-0.5t/h noma amandla ashisayo alinganiselwe angaphansi kuka-350kW azofakwa okungenani ngevalvu yokuphepha eyodwa. Amavalvu namavalvu okuphepha kufanele kulinganiswe njalo futhi kufanele avalwe ngemva kokulinganisa.
Isikhathi sokuthumela: Jul-06-2023
