Structural Characteristics of Sealing Ring for Liquefied Petroleum Gas

Taking petrochemical and oil refineries as examples, we will introduce the characteristics of typical hydraulic seals for easy-to-vaporize medium pumps. DSH Seals tells you that there are many pumps that work close to the boiling point of the medium, such as light hydrocarbon pumps, liquefied gas pumps, liquid ammonia pumps, hot water pumps and other pumps for hydraulic sealing rings.

So, what are the structural characteristics of a hydraulic sealing ring for liquefied petroleum gas?

1. The hydraulic sealing ring for liquefied petroleum gas adopts multi-point flushing, which is more evenly distributed along the circumference of the circle than the general single-point flushing, with less deformation, better heat dissipation, and uniform and stable end surface temperature, which is beneficial to the lubrication, cooling and phase stability of the hydraulic sealing ring. It can quickly reduce the heat transfer rate of the liquid to the surrounding liquid and increase the heat transfer coefficient, which is beneficial to the stability of the liquid film.

2. Hydraulic seals for liquefied petroleum gas all adopt the characteristics of balanced hydraulic sealing structure, and also adopt a suitable area ratio to make it within the suitable range of film pressure coefficient variation, so as not to cause abnormal phenomena such as gas shock or gas spray .

3. Of course, for the sake of safety, in addition to the main hydraulic seal, it is also equipped with a secondary seal hydraulic part that has the functions of throttling, leakage reduction and insurance. These works are done for the leakage of light hydrocarbons and other liquids into the atmosphere, and the shaft seal is in the form of frost, which will cause the shaft seal to wear out and cause greater leakage, and even seal ring accidents.