FIELD: ventilation.
SUBSTANCE: air flow oncoming towards a windward side of a pipe via specially arranged windows or holes in pipe walls is introduced into a ventilation pipe or a smoke stack with flow turn towards it cut, mixed with a flow of sucked air, and then both flows are removed via a cut of a ventilation or a smoke stack and windows or holes in its windward side. In the proposed method of draught development a speed flow of wind energy is used.
EFFECT: efficient removal of sucked air.
3 dwg
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