Problems existing in the mechanical seal of high temperature medium pump-Mechanical seal-

Problems existing in the mechanical seal of high temperature medium pump:

Taking the oil refining industry as an example, at present, high-temperature thermal oil pumps at home and abroad generally use contact-type bellows single-end mechanical seals. Basically, various measures such as flushing and cooling must be adopted to reduce the temperature rise of the conflict and prevent the failure of the seal caused by coking, thermal cracking, loss of bellows, broken bellows, pump evacuation, and aging of seals. To this end, a large amount of flushing oil and cooling water will inevitably be spent, resulting in high operating costs (preliminary estimates, the annual operating cost of a hot oil pump for flushing and cooling exceeds 100,000 yuan), large energy consumption, and poor reliability of mechanical seals. Low safety and high maintenance costs.