Problems Existing in Mechanical Seals of High Temperature Medium PumpsMechanical Seals

Problems Existing in Mechanical Seals of High Temperature Medium Pumps

Problems existing in mechanical seal of high temperature medium pump:

Taking the oil refining industry as an example, at present, high-temperature hot oil pumps at home and abroad generally adopt contact bellows single-end mechanical seals. The average service life of domestic bellows mechanical seals is about one year, and imported bellows mechanical seals can reach more than two years. Basically, various measures such as flushing and cooling must be adopted to reduce the temperature rise of conflicts and prevent sealing failure caused by coking, thermal cracking, bellows missing bullets, bellows fracture, pump evacuation, and aging of seals. For this reason, a large amount of flushing oil and cooling water will inevitably be consumed, resulting in high operating costs (preliminary estimates, the annual operating cost for flushing and cooling of a hot oil pump exceeds 100,000 yuan), large energy consumption, and poor reliability of mechanical seals. Low security and high maintenance costs.