Variable-pitch air door mechanism for vertical-axis wind power generation device

Abstract

The invention relates to the technical field of new energy, and discloses a variable-pitch air door mechanism for a vertical-axis wind power generation device. The variable-pitch air door mechanism comprises a variable-pitch air door mechanism body, an air door upper guard belt, an air door lower guard belt and air door panels, wherein the variable-pitch air door mechanism body is located on the peripheries of a movable blade rotor and a guide blade stator, a plurality of movable blades are arranged on the movable blade rotor, guide blades are arranged on the guide blade stator, the variable-pitch air door mechanism body is provided with the air door panels, a plurality of air collection section side plates are arranged on the outer side of the air door panels, the movable blades, the guide blades, the air door panels and the air collection section side plates are in one-to-to-one correspondence, the air door panels are annularly distributed and rotatably arranged between the air doorupper guard belt and the air door lower guard belt, and every two adjacent air door panels, the air door upper guard belt and the air door lower guard belt form a gradually-shrunk channel. According to the variable-pitch air door mechanism, variable pitch adjustment of the vertical-axis wind power generation device can be completed, the power of a wind turbine is effectively and safely adjusted according to the set working condition, and the effect of protecting the vertical-axis wind power generation device in extreme weather states such as storm wind is achieved.

Description

technical field [0001] The invention relates to the field of new energy technology, in particular to a pitch damper mechanism for a vertical axis wind power generation device. Background technique [0002] With the increasingly prominent global climate and energy issues, wind energy has gradually become a new energy source that has attracted worldwide attention. Wind energy is a green, renewable new energy source with huge energy reserves, wide distribution, local availability, no need for transportation, and convenient utilization. The utilization of wind energy has developed from the initial wind power to lift water, sails to aid navigation and wind power to grind flour to today's wind power generation. [0003] With the innovation and development of low wind speed technology, low wind speed areas that had no development value before are becoming hot spots for the wind power industry. At present, the reserves of wind resources with a wind speed above 5m / s and economic de...

AI Technical Summary

Problems solved by technology

However, the annual average wind speed in the central, eastern and southern regions of China is 5.0-6.5m / s, that is to say, wind energy density below 0.08kw / m2 cannot be used directly

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