FIELD: heat power engineering.
SUBSTANCE: invention relates to cooling fans for circulating water cooling towers. Proposed fan has shaft with hub, blades and drive. Novelty is that fan is provided with pylons installed on each blade and made in form of variable-curvature envelopes.
EFFECT: improved aerodynamic characteristics of fan, reduced losses and discharge of harmful matter into ambient atmosphere.
16 cl, 15 dwg
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