What are the special requirements for the cryopump in a low-temperature methanol washing system?
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Let’s discuss the differences between cryogenic pumps and normal-temperature pumps in terms of design, mechanical seals, flushing schemes, material selection, manufacturing, commissioning, and single-unit testing (using normal water as the medium). I look forward to your insights
The cryopump is made of materials resistant to low temperatures! When designing the pump, the net positive suction head required is higher than that of pumps operating at normal temperatures. Mechanical seals are primarily used, in combination with self-sealing mechanisms. The shaft seal is purged with nitrogen to prevent water in the air from freezing; flushing is carried out either to remove the medium inside or by using water for cleaning