Mechanical seal for kettle

Mechanical seals for kettles Mechanical seals for kettles are an ideal way to solve the sealing of the stirring shaft. According to the logarithm of the sealing surface, there are single-end mechanical seals and double-end mechanical seals. Double-end mechanical seals are generally equipped with a balanced circulation system. It can be used in flammable, explosive, toxic and corrosive, high vacuum and other places with stricter requirements on sealing. The auxiliary devices of mechanical seal include thermostat, balance tank (isolated fluid container), forced circulation balance system, etc. Working parameters: Working pressure of the medium in the sealed cavity: Absolute pressure 1.33×10-5MPa-6.4MPa Stirring shaft diameter: φ20-φ200mm Operating linear speed <3m/s. 202, 202F, 202F mechanical seal: 202, 202F mechanical seal system single End face, multiple springs, drive screw drive, non-balanced type kettle with mechanical seal. Applicable pressure is (absolute pressure) 0.0987-(gauge pressure) 0.25MPa, the temperature of the sealed chamber is ≤80℃, and the linear velocity is less than 3m/s. Type 202 is currently There are two Ministry of Chemical Industry standards in application, namely HG5-752-78 standard (referred to as 78 standard) and HG2098-91 standard (referred to as 91 standard), the difference is that the installation size is different. When the shaft diameter of the 202 type mechanical seal exceeds 110mm , The 202F type with lubrication box should be used as much as possible to improve the service life of the static ring. The 202F type is based on the characteristics of the use, and the structure and material of the static ring are improved on the basis of the 202 type. Its dynamic and static ring materials Commonly used DgMq (IgBq). It is suitable for the sealing of the stirring shaft of the reactor under various conditions without liquid lubrication, such as the shaft seal of the fermentation tank, the mold reactor and the like. The size of the 202FF type and the 202F type are exactly the same, the performance is similar, but the static The ring is made into a split type to facilitate the replacement of the static ring without disassembling the mixing shaft of the reducer, which is often used in the case of a larger shaft diameter.