Abstract
The paper presents the description of the new high-performance design of the inertial air flow purification system for cooling systems of radio-electronic equipment. The two-stage design of the apparatus is proposed; the first stage is centrifugal-shock and the second is inertial there. Discharge of solid particles, which are dangerous for the cooling system, is carried out in the lower part. The processes modeling was carried out based on a probabilistic approach. An expression for the differential function of number distribution of elements of polluted flow on dimensionless parameter is obtained; equations for calculating statistical averages are proposed. The obtained theoretical dependences can be applied to determine the main modes of operation of cooling systems, at which the ingress of solid particles into the air ducts of radio-electronic equipment and the destruction of its elements are prevented. The spatial 3-D pattern of the structure of gas flows in the apparatus is built using computer simulation methods; it allows to calculate the necessary parameters of the developed model and to assess the presence of stagnant zones and eddy currents, which adversely affect the performance and throughput of the device. It was proposed to increase the wall thickness of the internal elements to 2÷4 mm in order to reduce the hydraulic resistance and the speeds of air flow in the central part.
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