Mechanical seals have a wide range of applications in society, and many industries require the help of such equipment. So, what are the main applications of mechanical seals?
1、 Although sealing technology is not a leading technology, it is a decisive technology. For example, the US space shuttle Challenger crashed due to a sealing accident; For the safety and reliability of nuclear power plant circulating pumps, they have been changed from shaft sealed pumps to shaft sealed pumps. After improving the mechanical seal for reliable operation, the pump was changed back from a non shaft sealed pump to a shaft sealed pump, thereby improving the efficiency of the electric motor. These two events fully demonstrate that although mechanical seals are not leading technologies, they are decisive technologies.
2、 Although the seal is not large and only a component, it can determine the safety, reliability, and durability of the machinery and equipment. The shaft seal in the pump kettle of a petrochemical plant is not large. Once a product leakage accident occurs, it will not only affect the operation of the pump equipment, but also cause combustion or explosion, resulting in process equipment shutdown and personal injury.
3、 Mechanical seals account for about 50% of the daily maintenance work of equipment such as pumps and kettles. Through surveys of several petrochemical enterprises at home and abroad, it has been shown that the maintenance work of mechanical seals accounts for almost 50% of the daily maintenance work of equipment such as pumps and kettles. About 70% of the maintenance cost for centrifugal pumps is due to seal failure.