The impact of new technology application and management of mechanical seal dynamic seal on sealing effect-

The impact of new technology application and management of mechanical seal dynamic seal on sealing effect

　2017-01-18　　

The application and management of new technology of mechanical seal and dynamic seal have a great influence on the sealing effect. mainly includes:

①Development, research and promotion of new mechanical seal seal technology (container seal, descaling technology, magnetic seal and transmission, etc.);

②Seal failure analysis: including evacuation failure, fouling and opening failure, floating ring seal leakage problem (air compressor floating ring seal>, auxiliary seal ring failure (0-ring, V-ring, etc.), frequent start and stop Leakage problem, cavitation wear failure, reliability analysis of failure, seal repair;

③The digestion, absorption and localization of imported seals, mechanical seals for imported ethylene pumps, and thermal hydrodynamic wedge seals for methanol feed pumps in chemical fertilizer plants;

④ Domestic seal transformation, the process pump of the gas separation unit in the refinery is changed to 110 and 104 mechanical seals, especially for pumps that transport aromatic hydrocarbons, liquid hydrocarbons, and light petroleum products. The effect is obvious after use ；

⑤The pump seal is modified, the soft packing seal of the polyinnerene polymerizer is changed to a wide labyrinth combined structure, the middle packing is changed to a labyrinth seal, and the alkylation reactor is sealed;

⑥ High-strength sealing problems include: seals containing solid particles and corrosive media, seals that do not allow oil to be sealed in bottom-reducing pumps, oil-free piston rod seals, high-temperature and high-pressure reactor shaft seals, etc.

⑦Basic research and design, calculation (mechanical seal working condition parameters, dynamic pressure effect, etc.).　　242.html,

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