新絳需牢記填料改集式密封的這些安裝要領
常用的密(mi)(mi)(mi)封(feng)型式主要有填(tian)(tian)(tian)料(liao)(liao)密(mi)(mi)(mi)封(feng)、機(ji)械密(mi)(mi)(mi)封(feng)等(deng),填(tian)(tian)(tian)料(liao)(liao)密(mi)(mi)(mi)封(feng)。填(tian)(tian)(tian)料(liao)(liao)改集式密(mi)(mi)(mi)封(feng)是一(yi)種較為原始的接觸式密(mi)(mi)(mi)封(feng),具有結構簡(jian)單、成(cheng)本低、更換簡(jian)便等(deng)優點,由(you)于(yu)這些(xie)優點,因而在石油工業...