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Appearance design of a complete set of process piping for small air separation units

Appearance design of a complete set of process piping for small air separation units
Jun 01, 2022
Author: DEAR AST

The internal design of the adsorption tower assembly with pressurised screw device and the design of the quick-insert gas pack seal guarantees its gas tightness. In the process of the adsorption tower working under pressure, the upper plate is effectively pressed. This prevents the molecular sieve from being pulverised due to the movement of the upper plate. The compression screw is a trapezoidal threaded screw and matching nut. The compression screw is manually operated when it is still a mechanical compression structure. In order to facilitate the operation of the small air separation unit over a long period of time, work has been carried out to design a one-way cylinder automatic compression device. The lever of the unidirectional automatic compression device moves in one direction only after the cylinder has been ventilated. A claw-shaped unidirectional locking device with a slot in the cylinder body is designed to ensure that it continues to follow the movement of the plate downwards. When the lever of the unidirectional automatic compression device has fallen to a certain level and needs to be reset, the reset switch linked to the locking device is toggled to achieve the reset of the lever. In the adsorption tower pressure adsorption process, so that the compression cylinder in the compression work continued to follow the flower plate downward movement to achieve compression, and in the tower under the impact of airflow does not produce upward movement displacement, to achieve automatic and effective compression of molecular sieve, to prevent the phenomenon of spray molecular sieve, to ensure the adsorption efficiency of the adsorption tower to improve the adsorption effect of the nitrogen host, to better improve the overall performance of small air separation units.
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