頭屯河需牢記填料改集式密封的這些安裝要領
常(chang)用(yong)的密(mi)(mi)封(feng)(feng)(feng)型(xing)式(shi)主(zhu)要有填(tian)料(liao)密(mi)(mi)封(feng)(feng)(feng)、機械密(mi)(mi)封(feng)(feng)(feng)等(deng),填(tian)料(liao)密(mi)(mi)封(feng)(feng)(feng)。填(tian)料(liao)改(gai)集式(shi)密(mi)(mi)封(feng)(feng)(feng)是一種(zhong)較為原始(shi)的接觸(chu)式(shi)密(mi)(mi)封(feng)(feng)(feng),具有結(jie)構簡單(dan)、成本低(di)、更換簡便(bian)等(deng)優點,由于(yu)這些優點,因(yin)而在石油工業...