丁青需牢記填料改集式密封的這些安裝要領
常用的密(mi)(mi)封(feng)(feng)型式主要有填(tian)料(liao)密(mi)(mi)封(feng)(feng)、機(ji)械密(mi)(mi)封(feng)(feng)等(deng),填(tian)料(liao)密(mi)(mi)封(feng)(feng)。填(tian)料(liao)改集式密(mi)(mi)封(feng)(feng)是(shi)一種(zhong)較為原(yuan)始的接(jie)觸(chu)式密(mi)(mi)封(feng)(feng),具有結(jie)構(gou)簡(jian)單、成本低(di)、更換簡(jian)便等(deng)優(you)點(dian),由于這些優(you)點(dian),因而在石油工業...