Mechanical seal static seal technology-

Mechanical seal static seal technology

　2016-12-08　　

Mechanical seal static seal, that is, the mechanical seal with no relative movement between the joint surfaces. From the perspective of a petrochemical plant of moderate size, there are tens of thousands of static seal points, and there are many types of sealed media. Most of them are flammable, explosive, corrosive or toxic dangerous media. Once the seal fails, it will not only cause waste, but also pollute the environment, and even cause personal injury and property damage. Therefore, the study of its mechanism and components is of great significance.

Mechanical seals and static seals have been used by human society for a long time, such as the sealing of wine barrels in food manufacturing. However, it was not until the industrial revolution (the end of the 18th century) that the use of steam required steam engines and boiler pressure vessels to achieve rapid development. The development of chemical and petrochemical industries further accelerated the technological progress of static sealing. The current static sealing technology has been able to solve most of the static sealing problems. The pressure ranges from vacuum 300MPa, temperature from -180~12001, and diameter to 12m. However, because the influencing factors of static sealing technology are very complicated, theoretical research is difficult, and the experimental cost is high, the important performance index of static sealing, leakage rate, still cannot be quantitatively determined, and the reliability still cannot meet engineering requirements.　　190.html,

The higher standard of mechanical seal technology 　　 Research and development of mechanical seal technology (1)