CN1037193A

CN1037193A - Unit combination type wind power station

Info

Publication number: CN1037193A
Application number: CN 88102536
Authority: CN
Inventors: 徐文澄
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-04-26
Filing date: 1988-04-26
Publication date: 1989-11-15

Abstract

The present invention is a kind of unit combination type wind power station, and it is assembled by design rating flexibly by a plurality of unit standard wind wheel.Each rotor axial is serially connected in the major axis generating unit groups, divides string again and connect to be installed on the pylon, forms a whole windward side.Water conservancy diversion wind gathering plate is housed on the pylon, wind energy is fully utilized.Wind wheel is delivered to the wind concentration of accepting on the major axis, drives generator through drive speed-adjusting mechanism again.This apparatus structure is simple, easy to manufacture, cost is low, it is convenient that repair and maintenance is installed, and is more suitable as the big-and-middle-sized electricity generating device in strong wind district.

Description

Unit combination type wind power station

The present invention is a kind of unit combination type wind power station, and it is assembled by design rating flexibly by a plurality of standard block wind wheels.

Existing domestic and international wind generating unit mainly adopts horizontal axle construction of high speed or vertical shaft Da Lie formula wind energy conversion system, the fan blade diameter of maximal wind-energy device is long have been reached about 100 meters, but the worker leads and only is about 4 megawatts, and the cost of unit installed capacity is up to 1350 dollars/kilowatt.From utilizing the viewpoint of wind energy on a large scale, unit propeller formula wind generating unit, no matter its amount of capacity does not all have much futures, because poor reliability, the cost height, blade selection difficulty, manufacture process requirement is very high, complex structure, the operation maintenance workload is big.In addition, will be during installation with speed regulation control mechanism and generator etc., all be installed in very high cat head together with wind wheel, thereby make overall structure and tower design more complicated, the wind wheel big to diameter is because upper and lower layers wind-force differs bigger, to directly influence its stable operation, when wind speed was excessive, the necessary skidding of most blower fans quit work.These bring the difficulty that is difficult to overcome all for further developing of wind energy conversion system.Many countries are to the research work of large-sized wind-driven generator, all because of investing excessive and machine set technology is too complicated stagnates.And the resistance type blower fan can't surpass wind speed because of its rotating speed, it all is the low speed blower fan, the wind wheel of this blower fan when single operation only the first half be subjected to that wind-force makes its running and the suffered wind-force of Lower Half hinders its running, its efficient is reduced greatly, certainly if adopt wind-gathering device, can make its efficient improve (this type wind wheel efficient of the permanent joint of Japanese will husband invention has reached 70%, special public clear 55-26306) but too high again greatly to single wind wheel installing wind-gathering device cost.The advantage of resistance type fan rotor is: the structural strength height, and selection is easy to manufacture, axially can directly connect, reliable, be more suitable in strong wind, moving, how comprehensively various factors, learn from other's strong points to offset one's weaknesses, propose a kind of easy to manufacture, rational in infrastructure, cheap, the reliability height, collection wind rate is big, and the big-and-middle-sized wind generating unit of easy maintenance will be that people most pay close attention to.

Purpose of the present invention is to overcome the above-mentioned shortcoming that has big-and-middle-sized wind generating unit now just, and a kind of new structure wind generating unit is provided.

This device is actually to be swept the wind energy of being accepted on the area of territory with present big-and-middle-sized fan blade and breaks the whole up into parts, accept by a plurality of unit standard wind wheeling rotor respectively, concentrate again to be delivered on the continuous major axis and drive generator through speed regulating mechanism, device is to be concatenated into the major axis generator unit by a plurality of rotors, be installed in side by side again on the device pylon that water conservancy diversion wind gathering plate is housed, be combined into a whole windward side, whole wind energies of reception are fully utilized.Because the diameter of unit wind wheeling rotor is less, it is again a standard element, thereby selection and manufacturing are easy, blade wheel structure intensity height again can stack mounting, and the device pylon is to be combined by a plurality of type frameworks, intensity height not only, the water conservancy diversion wind gathering effect of having held concurrently again, this has just improved the efficient of wind wheeling rotor greatly, and cost also is lower than single wind generating unit.Simultaneously because each rotor layering divides string to arrange, root diameter at same horizontal position is identical, and suffered wind-force is roughly even, and each root diameter on vertical axis is in the ratio of in fact descending wind speed, descending from top to bottom selected, this just makes whole device operate steadily reliably.Every group leader's axle generator unit, linking to each other also to land together through a cover drive speed-adjusting mechanism and corresponding generator set is installed in the machine room, has improved the running environment of equipment, also easy access maintenance.Design of device is installed and has been realized normalization, blocking, modularization.Like this, just overcome the above-mentioned shortcoming of single big-and-middle-sized blower fan, made whole device have characteristics inexpensive, easy to manufacture, reliable, easy to maintenance, more suitable as the big-and-middle-sized wind generating unit in strong wind district.

Below in conjunction with relevant embodiment and accompanying drawing invention is further described.

Fig. 1 is the formula that the is arranged vertically structural drawing of this electricity generating device.

Fig. 2 is the horizontal arrangement formula structural drawing of this electricity generating device.As shown in the figure, it is unit standard wind wheeling rotor (3) that the wind energy of device is accepted member, and rotor axial is concatenated into a major axis string (5) mutually, links to each other with generator (8) through drive speed-adjusting mechanism (7), form one group of generator unit, divide string to be installed in side by side on the pylon (4) again.The pylon of device is equipped with on the framework and leads wind gathering plate (2) towards the year predominant wind direction of infield, and the wind gathering plate is by two-way wind-engaging design.Vertical frames (4) is fixed on the column foot, and both sides are by wirerope (1) tension, and speed regulating mechanism (7) and generator (8) land and be installed in machine room (6) lining.

Fig. 3 is the A-A sectional drawing among Fig. 1 and Fig. 2, as shown in the figure, wind on the windward side is under the effect of water conservancy diversion wind gathering plate (1), the first half that all focuses on each impeller is to be fully used, simultaneously because the effect of wind gathering plate makes first half blast improve the wind speed quickening, spoon shape blade (3) on the impeller (2) promotes impeller operation under the wind-force effect, impeller adiabatic efficiency is improved greatly.

Shown in Figure 4 device wind wheel adopts cracking formula S type rotor (Sha Funiusi type), and its advantage is that rotor structure is simple, has saved the water conservancy diversion wind-gathering device simultaneously.From the wind-engaging situation as can be seen, first lateral lobe sheet part wind-force of rotor causes like this, whole wind can being made full use of in the following half side blade of a top rotor naturally.The mounting point of each impeller several angle that staggers relatively makes the whole string axle system uniform and stable more that turns round on the major axis, makes overall structure simpler because of saving water conservancy diversion wind gathering plate simultaneously, and cost has also reduced.Wind wheeling rotor adopts vertical pivot fan rotor (Dari eritrea type, rotor type etc.) combination, all can save wind-gathering device.

The wind power station that is installed in bottleneck place, mountain pass shown in Figure 5.

The wind power station group who is installed in plateau, grassland, mountain top strong wind district shown in Figure 6.

Claims

1, a kind of wind generating unit comprises wind wheeling rotor (3), transmission long axis (5), pylon (4), water conservancy diversion wind gathering plate (2), drive speed-adjusting mechanism (7), generator (8).It is characterized in that: unit standard wind wheeling rotor (3) is concatenated into major axis string (5), divides string to be installed in side by side on the pylon (4) again, is combined into whole windward side.

2, by the described wind generating unit of claim 1, it is characterized in that: every string major axis constitutes an elementary generator group, and whole device is made up of many groups generator unit.

3, by the described wind generating unit of claim 1, it is characterized in that: the pylon of device is combined by many groups door type framework, and water conservancy diversion wind gathering plate is housed.

4, by the described wind generating unit of claim 1, it is characterized in that: each generator all lands with the speed regulating mechanism that links to each other and is installed in the machine room.

5, by the described wind generating unit of claim 1, it is characterized in that: wind wheeling rotor adopts resistance type, vertical pivot type fan rotor, the root diameter of same horizontal position is identical, on the vertical axis each root diameter in wind speed ratio up and down from top to bottom, descending selected.