Cooling And Flushing Methods Of Mechanical Seals For Centrifugal Pumps

Aug 05, 2022

1. In the first cooling form, the clean medium conveyed by the outlet or high pressure end of the centrifugal pump directly flushes the sealing end face and then enters the pump cavity, and the frictional heat on the friction end face is removed by the continuous circulation of the medium to achieve the cooling effect.

 

2. The second cooling method adds a cooling water jacket to the back of the static ring on the basis of the first cooling method. The cooling effect is improved and the leaked liquid can be washed and collected. When the temperature of the sealing medium is >150℃ In addition to cooling through cooling water in the cooling water jacket and the back of the static ring, forced cooling measures should be taken. That is, the clean medium from the pump outlet should be cooled to 50 °C through the heat exchanger before entering the sealed cavity for cooling and flushing. This form is cooling The one with the best effect.

3. If the medium contains particles or impurities in the pipeline centrifugal pump, filtering measures must be adopted, and the clean flushing liquid at room temperature shall be input into the sealed cavity.