Device for improving wind capturing efficiency of fan

The utility model discloses a device for improving wind capturing efficiency of a fan, and the device enables the wind capturing efficiency of the fan to break through the Betz limit of 0.593 and is mainly suitable for a perpendicular shaft type wind driven generator with small size blades. The devi...

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Bibliographische Detailangaben
Hauptverfasser:	JIANG QIBIN, LIANG PENGCHENG, FENG XUEBIN, HOU BINBIN, HU JIEHUA, LI ZAIKE, LIU JIANXUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	The utility model discloses a device for improving wind capturing efficiency of a fan, and the device enables the wind capturing efficiency of the fan to break through the Betz limit of 0.593 and is mainly suitable for a perpendicular shaft type wind driven generator with small size blades. The device disclosed by the utility model comprises a ringlike diffusing pipe and a diffusing pipe bracing structure, wherein the diffusing pipe is mounted on the periphery of a wind wheel of the fan, and section of the ringlike diffusing pipe adopts any lifting airfoil type. Furthermore, a ratio between the throat area of the ringlike diffusing pipe and the discharge area of the diffusing pipe is 1:1.5-3; and the diffusing pipe bracing structure is a fan tower barrel. The device for improving the wind capturing efficiency of the fan is simple in structure and convenient to mount, can adopt independently erected bracing structure, and also can be mounted on a fan tower; and the any lifting airfoil type ringlike diffusing p