Innovative Application and Fault Analysis of Mechanical Seals in Pumps
Abstract：Taking the DBM90A type bellows mechanical seal as the research object, this paper conducts a detailed analysis of the structural characteristics of this model of mechanical seal. Combined with the failure phenomena that occur when this mechanical seal is applied in pumps, it analyzes the causes of the failures and formulates corresponding handling measures. The results show that the failure of this mechanical seal is mainly related to the film state of the sealing end face, the vibration conditions of the pump, and the structure of the pump. During the fault handling process, it is advisable to adopt methods such as improving the balance chamber structure, optimizing the seal distribution ring, modifying the shaft end sealing flushing method, and improving the cooling water system to reduce the probability of mechanical seal failure and enhance the stability of pump operation.
Keywords：PumpMechanical SealLeakageFault CauseFault Handling
Publication Date：2025-06-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 33-35 )