Characteristics Of Forced Circulation Pumps

1. In terms of structure, the influence of low-temperature brittleness should also be avoided.
2. Bearings should pay attention to the influence of low temperature, such as the size of the gap, and select materials with good friction performance (such as tetrafluoroethylene, graphite, etc.) appropriately.
3. Bearings should consider the possibility of dry friction and take measures to prevent freezing and pre cooling during start-up.
4. Symmetrically arrange the structure to ensure uniform contraction of the pump at low temperatures. In order to maintain low temperature and prevent medium leakage, a double shell structure is adopted.
5. In order to prevent friction heating from causing liquefied gas vaporization and burning the friction surface, balance holes, symmetrical arrangements, and thrust bearings are often used, and balance plates are rarely used to balance axial forces (balance drums are used if necessary).
6. When selecting materials, attention should be paid to their low-temperature brittleness.
7. Cold insulation, dehumidification, pre cooling, and anti freezing measures should be taken during use.
8. In order to improve suction conditions, gas separation, not affected by temperature, and axial expansion, it is more advantageous to use a vertical simple bag pump structure.