綏中需牢記填料改集式密封的這些安裝要領
常(chang)用(yong)的(de)密(mi)封(feng)(feng)(feng)型式(shi)(shi)主要有填料(liao)密(mi)封(feng)(feng)(feng)、機(ji)械密(mi)封(feng)(feng)(feng)等,填料(liao)密(mi)封(feng)(feng)(feng)。填料(liao)改集式(shi)(shi)密(mi)封(feng)(feng)(feng)是(shi)一種較為原始的(de)接觸式(shi)(shi)密(mi)封(feng)(feng)(feng),具有結(jie)構(gou)簡單、成本低(di)、更換簡便等優點(dian),由于這(zhe)些優點(dian),因而在(zai)石油工(gong)業...