CN2035001U - High-level wind-collecting apparatus for power generation - Google Patents
High-level wind-collecting apparatus for power generation Download PDFInfo
- Publication number
- CN2035001U CN2035001U CN88202702U CN88202702U CN2035001U CN 2035001 U CN2035001 U CN 2035001U CN 88202702 U CN88202702 U CN 88202702U CN 88202702 U CN88202702 U CN 88202702U CN 2035001 U CN2035001 U CN 2035001U
- Authority
- CN
- China
- Prior art keywords
- wind
- air channel
- collecting
- altitude
- folk songs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model discloses high-level wind-collecting apparatus for power generation. High-level airflows with different speeds are met in an air inlet through one or a plurality of wind-collecting windows, and then are automatically accelerated through an air passage with tapered diameters. Thus, the airflows near ground form a speed required for work and are used for driving a generator set or other working machines. The utility model has the advantages of low cost, easy installation, long service life and simple maintenance.
Description
The present invention relates to a kind of high-altitude that is used to generate electricity device of collecting folk songs, the wind energy of utilizing this device to produce also can be used to drive other work mechanisms.
Wind is the natural phenomenon that is present in earth surface.The earth, the wind energy total amount in last ground layer every year is about 1.3 * 10
12Kilowatt, available wind energy is at least 10
9Kilowatt, about 10 times available water can total amount on the earth.The wind energy resources of China is very abundant, and a year wind energy gross reserves is estimated as 1,600,000,000 kilowatts.Because wind is a kind of inexhaustible energy,, be used for generating, irrigation by pumping, husk rice etc. so just utilized wind-force very early as the power that drives generator and other work mechanisms.Along with human civilization advance and science and technology development, the technology of using wind-power electricity generation has obtained very great development, receives very remarkable economical effect.
But majority utilizes the method for wind-force to spare and is derived from original windmill, the wind generating unit of countries in the world all is to set up wind-driven generator in natural wind field, tower height number meter extremely tens of rice, aero-generator rotor blade reaches several meters to more than ten meters, effectively the running wind speed is the 3-20 meter per second, and wind speed out of service is the 28-30 meter per second.There is following essence shortcoming in these wind power generating set: 1. can not fully use the wind-force of various speed, as not using wind speed below 3 meter per seconds and the wind speed more than 30 meter per seconds, have to abandon the fortune of becalming; 2. rotor blade is big owing to length, and loaded by the territories that dash of different sizes, and force-bearing situation is poor, and fracture accident often takes place; 3. wind power generating set must be installed on the very high pylon, and difficulty is installed, and mechanical wear is serious, and working life is short, generally less than 2 years.
Therefore, in recent years, the research of most wind-driven generators have to be conceived to the wind-force on ground, abandons the advantage of the prosperous and powerful wind-force in high-altitude more than liftoff ten meters or tens meters.As Chinese utility model patent CN 86201785U respectively is " wind-driven generator air channel ", is that the principle of mat " hot air flow rising " collects wind by the coating of brush one deck solar absorptance on a vertical air duct tower and the 16 stifled wind gathering metopes.U.S. tool patent 4406579(1983 September 27), it also is a kind of electricity generating device that utilizes surface wind, it is with a very long wind pumping channle, blacking is to absorb sunlight outside the air channel, be used for air in the heating pipe, produce " hot air flow rising " effect,, and produce distinguished and admirable at intake grill to the air generation one upwards draft on ground.This air-flow promotes to be connected the wind wheel rotation of intake grill, and rotor shaft drives integral shaft generator, changes wind energy into mechanical energy, becomes electric energy again.The disadvantage of this class wind-power electricity generation is to use the advantage wind-force in high-altitude.
Therefore, task of the present utility model is the method and the device thereof that will provide a kind of high-altitude that is used to generate electricity to collect folk songs, reach and to utilize overhead superiority wind-force, make wind generating unit improve its operating conditions and prolong life of equipment, and requirement on machining accuracy is low, easy for installation, easy to maintenance, reduce the expense that device fabrication is maintained greatly.
Task of the present utility model is to solve by following technological scheme: the air stream that the high-altitude is had friction speed, come together in intake grill by one or several wind collecting ports, quicken voluntarily in air channel by tapered diameter, and the exhaust outlet at place near the ground reaches and generates electricity and drive the required operating rate of other work mechanisms.
Design of the present utility model is based on bernoulli equation.According to bernoulli equation, air is constantly motion in natural wind field, and the kinetic energy of its motion is that wind energy density is:
W＝ 1/2 ρV
3A， （1）
The W-wind energy;
ρ-air density;
The V-wind speed;
The A-unit cross-sectional area.
If the sectional area of the logical intake grill of wind is A
1, wind speed is V
1, the sectional area of exhaust outlet is A
2, wind speed is V
1, then the wind energy by intake grill cross section, air channel is W=1/2 ρ A in the unit time
1V
3 1Same wind energy in exhaust outlet cross section, air channel is: W
2=1/2 ρ A
2V
3 2
Suppose it is desirable convergent air channel, the loss of wind energy in the air channel is not significant, according to conservation of energy theorem, then:
W
1=W
2I.e. (A
1)/(A
2)=(V
2 3)/(V
1 3),
（2）
By formula (2) as can be known, the wind speed at place, large-section is little, and the wind speed at small bore place is big.Certainly, A
1Size be to decide according to unit capacity, A
2Size be to select according to the design wind speed of wind turbine.Air channel length is then recently selected by best speedup.
According to fluid mechanics aerodynamic force theory, the axial cross section in air channel is shaped as hyperbola, and the wind energy loss is minimum, and its gain factor is at 4-5.In the practical application, adopt straight line or other approximate Double curves also to be fine.
The utility model mainly is used in the mode of collecting folk songs of liftoff more than ten meters and even tens of meters, is used for replacing existingly setting up the mode of the wind comes from of windmill type at natural wind field, and main advantage is in the high-altitude because surface wind because friction dies down the event.Certainly, the utility model also can be used in ground for the frequent area of ground air-flow, the horizontal or tilting air channel of this appropriate to the occasion employing.
For adapting to the wind-force of different direction, can adopt single wind collecting port or many wind collecting ports.A preferred version of the present utility model is the air channel that can turn round single wind collecting port, and another preferred version is the air channel of many wind collecting ports.
When high wind takes place when, use the operating rate in air port and exceed the application permission range in order to prevent especially big wind speed, then can adopt the wind collecting port of variable-diameter, flow into to reduce air quantity; Or spoiler is set in the air channel or drags pore, and other deceleration drag devices.
In the exhaust outlet part in air channel horizontal shaft type, vertical shaft type, multistage etc. can be installed can be for the wind power generating set that drives.
Accompanying drawing of the present utility model is as follows:
The work schematic representation of Fig. 1-utilize the utility model generating;
Fig. 2-duct cross-section figure;
The air channel of Fig. 3-rotatable wind collecting port.
Figure 1 shows that the situation that the utility model is used to generate electricity.Having speed is V
1Air communication cross wind collecting port (5) and converge at intake grill (7), the acceleration in the air channel (1) by tapered diameter, air stream is located to form at exhaust outlet (8) has required operating rate V
2Air-flow.This air-flow drives wind power generating set (2) such as horizontal shaft type, vertical shaft type, multistage.
Figure 2 shows that each constituent element in air channel.The wind collecting port in air channel (5) can adopt single wind collecting port (as shown) or many wind collecting ports, and it and air channel (1) join, and the connecting part is intake grill (7).As a rule, wind collecting port overlaps with intake grill, is just directly collected folk songs by intake grill.The diameter in air channel is a convergent, and the axial cross section shape in air channel is a hyperbola.For easy to process, also can do being in line or similar hyperbola.The polishing of the internal surface in air channel, to reduce resistance, the air channel outer surface then is coated with thermoinsulation material, in order to avoid sunlight adds the air-flow in the hot-flow flue, shape " hot air rising ".Exhaust passage (9) is exhaust outlet (8) with the connecting part, air channel, and the length of exhaust passage can depend on the needs.
Figure 3 shows that the air channel of rotation wind collecting port.Connect (3) with ball between wind collecting port (5) and the air channel intake grill, wind collecting port can rotate.Fix a weathercock (6) on the wind collecting port, the effect of weathercock is to make wind collecting port forever facing to airflow direction.
Because the utility model has been broken through the form of collecting folk songs of traditional wind-power electricity generation, and in natural wind field, particularly use the air channel to collect folk songs in the high-altitude, be in fashion by the air channel then and accelerate to drive wind-driven generator, all generating set all can be installed in ground, brings many technique effects; Method is not tight to the increase and decrease requirement condition of the selection in area and power bracket because this kind collected folk songs, and therefore can be widely used in China's wide geographic area, and cost is low, and is easy to maintenance, and the electrification of China is had big meaning. Except generating, use collect folk songs method and device thereof of the present utility model drive carry water, milk, other work mechanisms such as sheepshearing, can obtain very large economy benefit.
Claims (6)
1, a kind of high-altitude that is used to generate electricity device of collecting folk songs is to be made up of one one several wind collecting ports (5), intake grill (7), air channel (1) and exhaust outlet (8), it is characterized in that the diameter in air channel is a convergent.
2, according to the high-altitude of claim 1 device of collecting folk songs, it is characterized in that the axial cross section in air channel is shaped as hyperbola.
3, according to the high-altitude of claim 1 or 2 device of collecting folk songs, it is characterized in that the surface of locating in air channel is coated with thermal-protective material, the internal surface polishing.
4, according to the high-altitude of claim 1 or 2 device of collecting folk songs, it is characterized in that connecting with ball between wind collecting port and the air channel intake grill, wind collecting port is rotatable.
5, according to the high-altitude of claim 3 device of collecting folk songs, it is characterized in that connecting with ball between wind collecting port and the air channel intake grill, wind collecting port is rotatable.
6, according to the high-altitude of claim 4 device of collecting folk songs, it is characterized in that having on the wind collecting port weathercock (6) wind collecting port and face airflow direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88202702U CN2035001U (en) | 1988-03-31 | 1988-03-31 | High-level wind-collecting apparatus for power generation |
| DE8806761U DE8806761U1 (en) | 1988-03-31 | 1988-05-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88202702U CN2035001U (en) | 1988-03-31 | 1988-03-31 | High-level wind-collecting apparatus for power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2035001U true CN2035001U (en) | 1989-03-29 |
Family
ID=4837665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88202702U Withdrawn CN2035001U (en) | 1988-03-31 | 1988-03-31 | High-level wind-collecting apparatus for power generation |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN2035001U (en) |
| DE (1) | DE8806761U1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT142137B (en) * | 1933-07-25 | 1935-06-25 | Wilhelm Ing Marreg | Wind turbine. |
| DE757548C (en) * | 1940-06-18 | 1953-08-03 | Arno Fischer | Wind turbine generator set |
| US2616506A (en) * | 1949-03-22 | 1952-11-04 | Berton M Mathias | Wind-operated power generator |
| SE8105868L (en) * | 1981-10-05 | 1981-10-05 | Martin Denev | INFLATABLE, REFILLABLE OR COMBINED INFLATABLE / FILLABLE TREASURY DEVICE FOR CONCENTRATION OF WIND POWER AND CALCULATION OF WIND SPEED IN A POWER SYSTEM WHICH CAN FLY AIR FLOW AIR FLOW AIR. |
-
1988
- 1988-03-31 CN CN88202702U patent/CN2035001U/en not_active Withdrawn
- 1988-05-24 DE DE8806761U patent/DE8806761U1/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE8806761U1 (en) | 1989-08-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |