CN1945007A

CN1945007A - Louver type two stage wind wing wind power machine energy converting device

Info

Publication number: CN1945007A
Application number: CNA2006101384377A
Authority: CN
Inventors: 乔丹; 乔云庭
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-14
Filing date: 2006-11-14
Publication date: 2007-04-11

Abstract

The louver type two-stage wind wing wind energy converter as one energy source apparatus includes one central shaft and wind wings fixed on the central shaft. It features the wind wings separated into two stages, including main wind wings installed directly on the central shaft and auxiliary wind wings installed onto small shaft on the frame. The louver type two-stage wind wing wind energy converter has no need of tail rudder, great rotation torque, low rotation speed, small initialing wind speed, high wind energy converting efficiency and wide application area.

Description

Louver type two stage wind wing wind power machine energy converting device

Technical field

The invention belongs to the energy source use apparatus field, specially refer to a kind of louver type two stage wind wing wind power machine energy converting device that utilizes wind energy.

Background technique

The energy is to promote progress of human society and human material base of depending on for existence, and over nearly 100 years, global energy consumption is every year on average to be higher than 3% speed increase.The a large amount of energy consumption particularly consumption of fossil energy has brought very serious environmental problem.As climate warming, ecological failure, pollution of atmosphere or the like.And traditional fossil energy reserves are limited, and excessive exploitation utilization will speed up its exhaustion.Everything can serious restriction human society, the continuity and the development of economic activity, and therefore, the whole world is when calling energy saving, also all at active development with utilize renewable energy sources.

Although China is vast in territory, because of populous, coal, crude oil occupy reserves and compare with world's major power and have a long way to go per capita, so it is imperative to develop renewable energy sources as early as possible.

China's wind resource is abundanter, and land wind energy theory can be developed nearly 2.53 hundred million kw of total amount, and the wind energy on the sea theory can be developed total amount 7.5 hundred million kw, amounts to about 1,000,000,000 kw.Along with the propelling of China's sustainable development and novel energy strategy, in future, the strategic position of wind resource in China's energy supply, particularly power supply will become increasingly conspicuous.But at present, our wind-power electricity generation process is in slow state compared with developed countries always, and the technical merit of wind energy conversion system is backward relatively, and the efficient type that is suitable for is single.

Wind energy conversion system can be divided into two kinds on horizontal axis type and vertical pivot type by axle type classification.The horizontal axis type wind energy conversion system is the most representative to be propeller type, is most widely used, most effective type in the present horizontal axis type wind energy conversion system.Vertical pivot type wind energy conversion system is because conversion efficiency is generally lower, so fail to enter practicality.

There is following several respects deficiency in the propeller cavitation wind energy conversion system:

1. need to keep its paddle to be in state down with the wind, or realize with modern control technology by tail vane.

2. need it be supported on certain altitude with pylon or steel pipe pole, particularly large scale wind power machine needs very high pylon to support.

3. material and the manufacture process requirement to blade is very high.The existence of these deficiencys has just proposed the inexorable trend of improvement, innovation.

Summary of the invention

The technical issues that need to address of the present invention, be to need to facing the wind through regulating at the direction that propeller wind energy conversion system commonly used in the prior art has a paddle, wind energy conversion system need be supported on eminence and paddle material, technology many deficiencys such as all have higher requirements, in order to overcome these deficiencies, just need a kind of effective wind energy conversion system structure of redesign, purpose of the present invention provides a kind of louver type two stage wind wing wind power machine energy converting device, to realize wind energy--effective conversion of-mechanical energy.

The objective of the invention is to realize by the following technical solutions: a kind of louver type two stage wind wing wind power machine energy converting device, comprise central principal axis and be fixed on the wind wing on the central principal axis, it is characterized in that, described wind wing branch has two-stage, the wind wing that the first is shaped as smooth streamline airfoil fin and exists with single separate unit, for two-stage wind wing is auxiliary wind wing again, it is installed on the framework by little axle and can rotates around little axle; Connect and be directly installed on assembly on the wind energy conversion system central principal axis through framework by several two-stage wind wings of installing side by side, for one-stage wind wing also claims main wind wing; A wind energy conversion system includes three to four groups of main wind wings.The framework that a described polar wind wing is comprised, its sectional shape also are smooth streamline airfoil.

For large scale wind power machine, described two-stage wind wing quantity adopts multiple row to arrange, is many rows during horizontal arrangement, and every row two-stage wind wing links to each other with lazy-tongs.

Described two-stage wind wing is the wing blade fin, is meant that its cross section is a wing blade, links to each other with the framework of one-stage wind wing by little axle, and this little axle is installed on its centroid axis, and the rotary freedom of 180 degree can be arranged.Because two-stage wind wing is a wing blade, so the centroid axis of wing must be on the inclined to one side geometric midline position of the wind wing.

Described main wind wing can be made into four groups of wings or three groups of wing structures.

The louvre type wind energy conversion system can be made the vertical pivot type, also can make horizontal axis type.

Louvre type vertical pivot wind energy conversion system (as shown in Figure 2) is identical with existing vertical pivot type wind energy conversion system, can rotate by design direction, does not need tail vane control; Can ground proximity install, height can height can be low; Material requirements to the wind wing is relatively low; Moment of torsion is big, and rotating speed is low; It is little to start wind speed, and it is wide to be suitable for the region.

The louvre type horizontal-shaft wind turbine: as long as the wind energy conversion system shown in the accompanying drawing 2 is toppled over to the left, horizontal positioned in axle both sides bearings, has just constituted the horizontal axis type wind energy conversion system.

Horizontal axis type is compared with the vertical pivot type, and its advantage is that axle can have two and above bearings, and the material and the structure of axle are better selected and processing.Shortcoming is to want to allow it be in the best state that facings the wind all the time, must establish special mechanism controls.If be installed in through the more stable zone of direction of prevailing wind, its superiority is significantly, can make more powerful type, and can exceed with the height of horizontal axis, do a domatic windbreak at its windward side, both can stop the blast of wind, the blast of the windward wing is strengthened the leeward wing.

This project is a brand-new wind energy--the technological method of-mechanical energy conversion.Its design is to make every effort to realize that the coefficient difference of keeping out the wind of the axle two crosswind wings is 1 (ideal value), i.e. venetian blind (two-stage wind wing) sealing of crosswind fan is kept out the wind, and the venetian blind of opposite side fan (two-stage wind wing) is all opened ventilation, forms very big difference in torque in the both sides of axle.

This louver type two stage wind wing wind power machine has two kinds of mounting types in installing and using:

1. the vertical pivot type is installed: when wind direction is F _VThe time, one-stage wind wing a, b be in down with the wind to, under the effect of wind-force, its two-stage wind wing can be automatically brought to shown position, keeps the state opened entirely, windage is very little.When one-stage wind wing turned over critical surface near the position of wind wing b, two-stage wind wing was in leeward state and disequilibrium is overturn, and under the control of lazy-tongs, all two-stage wind wings are half-twist in the same way, reaches the totally-enclosed state that keeps out the wind.Turn over after the position of c F when one-stage wind wing _VBlast to the wind wing is more and more littler, and the relative speed of wind that rotation produces is increasing to the opposite direction pressure that two-stage wind wing produces, even when turning over critical surface, also has F _VThe pressure that produces, when upset took place the resultant direction of these two opposite forces, two-stage wind wing just can be opened automatically and be the state of facining the wind in-position d once again.Realized that so just the two-stage wind wing in the windward side one-stage wind wing opens fully, the totally enclosed conception of the two-stage wind wing of side one-stage wind wing with the wind, the wind-force official post wind energy conversion system of the two crosswind wings is rotated counterclockwise.If wind energy conversion system is turned clockwise the reverse installation of two-stage wind wing.

2. horizontal axis type is installed: when wind by the forward direction after-blow during to wind energy conversion system, the two-stage wind wing Close All of top one-stage wind wing is in the wind-engaging state, the two-stage wind wing of bottom one-stage wind wing is all opened and is in open state, the rotation of rolling after by forward direction of the top wind wing.The detailed operation principle is with the vertical pivot type.

The invention has the beneficial effects as follows that this venetian blind two stage wind wing wind power machine does not in use need tail vane, the torque of wind energy conversion system is big, and rotating speed is slow, and it is little to start wind speed, and work wind speed range is big, and it is wide to be suitable for the region, and the annual utilization hours number is many; Do not need very high tower foundation, the installation of can making use of momentum; This blower fan is relatively low to the material requirements of the wind wing.

Description of drawings

Fig. 1 is the generator fin form of traditional form.

Fig. 2 is this louver type two stage wind wing wind power machine head construction schematic representation.

The framework sectional shape figure that Fig. 3 comprises for one-stage wind wing.

Fig. 4 is three groups of wing structure schematic representation for main wind wing.

Embodiment

With reference to Fig. 2, represent louver type two stage wind wing wind-force head construction schematic representation of the present invention, what be positioned at the center portion among the figure is called central principal axis 1, the framework that is connected on the central principal axis is 2, its relative main shaft is layout symmetrically, can make four groups of main wind wings or three groups of main wind wings, the secondary fin 3 that on each framework, is connecting smooth streamline airfoil by little axle, be called auxiliary wind wing again, some secondary fins 3 are formed one-stage wind wing 4 side by side, be referred to as main wind wing again, a on the figure, b, c, d represents the position relation of 4 directions respectively, and with reference to the framework sectional shape that Fig. 3 represents in the one-stage wind wing to be comprised, it also is smooth streamline airfoil, with reference to Fig. 4, expression main wind wing 4 is the composition schematic representation of three groups of main wind wing structures.

Claims

1. louver type two stage wind wing wind power machine energy converting device, comprise central principal axis and be fixed on the wind wing on the central principal axis, it is characterized in that, described wind wing branch has two-stage, the first is shaped as smooth streamline airfoil fin, and the wind wing that exists with single separate unit, for two-stage wind wing is auxiliary wind wing again, it is installed on the framework by little axle and can be around little axle rotation; Connect and be directly installed on assembly on the wind energy conversion system central principal axis through framework by several two-stage wind wings of installing side by side, for one-stage wind wing also claims main wind wing; A wind energy conversion system includes three to four groups of main wind wings.

2. louver type two stage wind wing wind power machine energy converting device according to claim 1 is characterized in that, the framework that a described polar wind wing is comprised, its sectional shape are smooth streamline airfoil.

3. louver type two stage wind wing wind power machine energy converting device according to claim 1 is characterized in that, the centroid axis of described secondary wing is on the inclined to one side geometric midline position of the wind wing.

4. louver type two stage wind wing wind power machine energy converting device according to claim 1 is characterized in that, for large scale wind power machine, described two-stage wind wing quantity adopts multiple row to arrange, is many rows during horizontal arrangement, and every row two-stage wind wing links to each other with lazy-tongs.

5. louver type two stage wind wing wind power machine energy converting device according to claim 1 is characterized in that, described main wind wing can be made into four groups of wings or three groups of wing structures.