擋板門在(zai)(zai)電廠或(huo)其(qi)他行業中(zhong)經(jing)常被用作煙管(guan)和(he)風(feng)(feng)道(dao)中(zhong)的攔截介質。風(feng)(feng)門的開(kai)閉角度(du)為90℃。風(feng)(feng)管(guan)或(huo)煙道(dao)的擋(dang)板(ban)門有全開(kai)和(he)全關(guan)(guan)兩種功能,使系統中(zhong)的某一管(guan)道(dao)介質可(ke)(ke)以(yi)充分循環或(huo)關(guan)(guan)閉。擋(dang)板(ban)門葉片(pian)(pian)由(you)鋼板(ban)成型(xing)或(huo)鑄造而成,流線型(xing)截面葉片(pian)(pian)確(que)保最小的中(zhong)壓損失,框架由(you)鋼板(ban)成型(xing),型(xing)鋼焊(han)接或(huo)鑄造而成,葉片(pian)(pian)通過特殊緊固件與主軸連接。當阻(zu)尼器安(an)裝在(zai)(zai)管(guan)道(dao)上,葉片(pian)(pian)關(guan)(guan)閉時(shi),前后密封率(lv)可(ke)(ke)達99%以(yi)上,可(ke)(ke)以(yi)拆卸(xie)任何零(ling)件,在(zai)(zai)工作條件下可(ke)(ke)以(yi)方便地(di)修理或(huo)更換零(ling)件。
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