CN203248313U

CN203248313U - Novel wind driven generator

Info

Publication number: CN203248313U
Application number: CN 201320201056
Authority: CN
Inventors: 王勇
Original assignee: Guilin University of Electronic Technology
Current assignee: Guilin University of Electronic Technology
Priority date: 2013-04-19
Filing date: 2013-04-19
Publication date: 2013-10-23
Anticipated expiration: 2023-04-19

Abstract

The utility model relates to a novel wind driven generator. The novel wind driven generator overcomes some defects of an existing wind driven generator. A wind wheel is not directly exposed to wind and rain. Meanwhile, more wind energy is collected through an outer shell. The novel wind driven generator can utilize not only the positive pressure of the wind but also negative pressure of the wind to generate power. Some one-way valves are arranged in the positions of an air inlet and an air outlet. Air can only enter the novel wind driven generator and cannot come out in the position of the air inlet. Air can only come out of the novel wind driven generator and cannot enter the novel wind driven generator in the position of the air outlet. Air enters the generator from the outer shell to push the wind wheel to generate power.

Description

A kind of novel wind-driven generator

Technical field

The utility model belongs to renewable sources of energy field, relates to a kind of wind-driven generator, particularly vertical axis aerogenerator.

Background technique

Wind-driven generator is varied, can be divided into two classes but be summed up: 1. horizontal axis wind-driven generator, and the running shaft of wind wheel is parallel with wind direction; 2. vertical axis aerogenerator, the running shaft of wind wheel is perpendicular to ground or airflow direction.Horizontal axis wind-driven generator section is divided into lift-type and resistance type two classes.Lift-type wind driven generator rotation speed is fast, and the resistance type rotational speed is slow.For wind-power electricity generation, adopt the lift-type horizontal axis wind-driven generator more.Most of horizontal axis wind-driven generators have wind apparatus, and the energy box haul changes and rotates.For small-sized wind power generator, this to wind apparatus employing tail vane, and for large-scale wind-driven generator, the driving mechanism that then utilizes wind direction sensor and actuating motor to form.The wind wheel of wind energy conversion system is called the upwind wind energy conversion system the pylon front, and wind wheel then becomes leeward to blower fan the pylon back.The style of horizontal axis wind-driven generator is a lot, the wind wheel with counter-rotating blade that has, a plurality of wind wheels are installed on another pylon that has, in order under the certain condition of output power, reduce the cost of pylon, the horizontal axis wind-driven generator that also has produces whirlpool around wind wheel, focused airflow increases airspeed.Vertical axis aerogenerator need not in change of the wind wind, is a large advantage with respect to horizontal axis wind-driven generator in this, it not only makes structural design simplify, and the gyro power when having reduced wind wheel to wind.

Utilize the vertical axis aerogenerator of resistance rotation that several types is arranged, wherein have and utilize wind wheel dull and stereotyped and that quilt is made, this is a kind of pure resistance device; S type windmill has part lift, but main or resistance device.These devices have larger starting torque, but tip-speed ratio is low, and in the certain situation of wind wheel size, weight and cost, the power stage that provides is low.

In addition, also has some other mutation, such as Da Lie formula wind wheel.The Da Lieshi wind wheel is a kind of lift unit, and the section of curved vane is aerofoil profiles, and its starting torque is low, but tip-speed ratio can be very high, and wind wheel weight and cost for given have higher power stage.Multiple Da Lie formula wind-driven generator is arranged now, such as the Φ type, Δ type, Y type and H type etc.These wind wheels can be designed to single blade, double-leaf, three blades or multiple-blade.Other forms of vertical axis aerogenerator has the Magnus effect wind wheel, and it is comprised of the cylindrical body of spin, and when it was worked in air-flow, the locomotivity of generation was owing to Magnus effect causes, its size is directly proportional with wind speed.The vertical axis rotor that has uses pipeline or eddy generator tower, makes horizontal gas flow become uprush by sleeve pipe or Diffuser, and to gather way, idol is write and also utilized solar energy or certain fuel that burns, so that horizontal gas flow becomes the air-flow of Vertical direction.

The wind wheel of these generators all is to be directly exposed in the wind and rain, is drenched with rain easily, needs to use special material, and the life-span also is affected.In addition, wind wheel all is the passive receive wind energy, can not regulation and control accepts the size of wind energy.In addition generator receptible wind energy be subject to blade size and shape restriction, can not fully accept wind energy.Existing wind-driven generator can only could generate electricity when wind-force is enough large in addition.Existing wind-driven generator can only utilize the positive pressure of wind, and can not utilize the negative pressure of wind.

Summary of the invention

The utility model is for the above defective of existing wind wheel generator, designs a kind of wind wheel to be placed wind-driven generator in the shell, can regulate by the size to the shell intake grill.Very long on the wind wheel length of traditional wind, blade is not wide, not intensive, in the utility model owing to rely on shell to concentrate wind energy, need not like this to do blade to such an extent that can accept the wind energy power that shell is concentrated very greatly, can when wind-force is more small, just put aside enough wind energy powers, even width of blade is large, than comparatively dense, also need not very large area.Vertical axis aerogenerator often needs that pair wind apparatus is arranged, and according to the direction of Wind direction-adjusting device, can have more cost like this.In the utility model wind wheel towards fixing, need not rotation, need not special connection set, this can prolong its life-span, reduces the requirement of special material.The impeller of traditional wind (wind wheel) is to be placed in the open space, this also is unfavorable for taking full advantage of wind energy, such as the direction that has departed from wind wheel when wind energy, can't be utilized, the utility model is placed on impeller in the pipeline of a sealing, wind energy is not changed fully through a wind wheel, can promote wind wheel generation in the next wind wheel of pipeline yet, can improve the utilization ratio of wind energy.Key of the present utility model is: wind wheel and accessory generator thereof are placed among the shell, this shell is divided into many fans, all can open wide towards all directions, but, the non-return device that a similar valve is all arranged at these fans of shell, in wind, open wide, in the time of leeward, the meeting autoshutdown is as long as there is like this wind, no matter wind from which direction comes, all can only enter electricity generating device inside from shell, promote one group of wind wheel generation that is installed on the bearing, and can not go out from the intake grill of device.When wind comes from certain direction, only have those or that fan of wind faces direction to open, other to need only pressure direction opposite, will autoshutdown.Each fan of shell all is to be fan-shaped, each sector region seals up and down, and that end of the outside that wind is come in from the external world is larger, and that wind enters the basal area of one-way cock of generator intake grill is less, enter inner after along with the reducing of section, wind speed can increase.Then wind enters in the vertical pipe of a sealing, promotes the rotation of impeller (wind wheel) group, sees through booster engine again the speed of rotating is promoted, and impels the generator generating.In order to take full advantage of the negative pressure of wind, strengthen wind speed, opposite non-return device can be set at the outlet end of wind, form air negative pressure, namely the windward side is closed, and lee face is opened, and wind can be sucked out like this.

This wind-driven generator comprises: shell, intake grill, pipeline, bearing, wind wheel, one-way cock, exhaust outlet, enter the interruption-forming malleation, and go out the interruption-forming negative pressure, cause wind in vertical pipe, to promote the runner generating.

Owing to device does not adjust along with the change of wind direction, fix, so that can do is larger, the face of collecting folk songs is very large.Wind wheel can bear larger wind-force by bearings.

Description of drawings

Fig. 1 is wind-power electricity generation schematic representation of the present utility model.

Fig. 2 is embodiment's intake grill plan view of the present utility model.

Embodiment

Below be embodiment of the present utility model.

Wind generating unit is made drum, and the above has circular top, be intake grill below the top, and intake grill is controlled by one-way cock, and valve is the door of circular arc, but it open outwardly, unlatching when facining the wind, contrary wind is closed.One has 8 one-way cocks, each door is 45 degree circular arcs, just blows to single valve in order to guarantee wind in housing, extends outward barricade in 45 degree orientation take bearing as radiation, until the external diameter of circular top can enlarge the area of adopting wind energy like this.The end that annular is also arranged below intake grill,, take the position of valve as internal diameter, external diameter can be identical with the top of circle.

In order to guarantee the leakproofness of one-way cock, on one side of door folding, there is a pillar position at door place, limit, and pillar adds that in the place that door is closed cushion rubber is used for sealing.The pillar of intake grill just in time can block door in the outside of door, and door can be opened towards the inside like this, and can not open the outside, can only air intake and can not air-out.When door facingd the wind, door can be opened, and door is against the wind the time, and door can be blocked by pillar.

The below of intake grill is a pipeline, and bearing is arranged in the pipeline, and the centre is provided with one group of wind wheel and generator from top to bottom, and wind promotes the generating of wind wheel group by pipeline the time.

Be exhaust outlet below wind wheel, exhaust outlet is similar to intake grill, but some place is opposite.The below is the circular end, is exhaust outlet at the end.Exhaust outlet also is that unidirectional valve is arranged.But this valve only allows wind to go out, and does not allow into, and its pillar is arranged on the inside of door.

Shell can be the structures such as metal or employing concrete.

Claims

1. novel wind-driven generator, it is characterized by: comprise shell, intake grill, pipeline, bearing, wind wheel, one-way cock, exhaust outlet, the intake grill that is formed by an one-way cock, can only advance and to go out in the air intake one's intention as revealed in what one says, the exhaust outlet that also is comprised of an one-way cock simultaneously can only go out and can not advance in the air-out one's intention as revealed in what one says; Wind enters in the pipeline by intake grill, promotes wind wheel generation, then goes out by exhaust outlet.

2. a wind-driven generator as claimed in claim 1 is characterized by: in the one-way cock position of intake grill, a pillar is arranged, be placed on direction outwardly, just block valve.

3. a wind-driven generator as claimed in claim 2 is characterized by: in the one-way cock position of exhaust outlet, a pillar is arranged, be placed on direction inwardly, just block valve.

4. a wind-driven generator as claimed in claim 3 is characterized by: on the pillar of each one-way cock of intake grill and exhaust outlet O-ring seal is arranged.

5. wind-driven generator as claimed in claim 4 is characterized by: intake grill and exhaust outlet are all by shell extend outward air intake and outlet air surface.