CN202645870U - Compressed air energy storage type wind generating system - Google Patents
Compressed air energy storage type wind generating system Download PDFInfo
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- CN202645870U CN202645870U CN2012202545714U CN201220254571U CN202645870U CN 202645870 U CN202645870 U CN 202645870U CN 2012202545714 U CN2012202545714 U CN 2012202545714U CN 201220254571 U CN201220254571 U CN 201220254571U CN 202645870 U CN202645870 U CN 202645870U
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- 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 a compressed air energy storage type wind generating system, which comprises a fan, a air compressor, an air storage tank, a pressure reducing tank, a pneumatic generating unit and a control device that are arranged in a wind power plant, wherein the fan is communicated with the air compressor; the air compressor is communicated with the air storage tank, the air storage tank is communicated with the pressure reducing tank, and the pressure reducing tank is communicated with the air input end of the pneumatic generating unit; and the input end of the control device is connected with a pressure sensor, and the output end of the control device is connected with a control valve. The compressed air energy storage type wind generating system is simple in structure and capable of outputting stable and continuous electric energy without participating in frequency modulation through a thermal power generating unit and has the advantages of reducing the pressure of a power grid and ensuring that the difficulty of wind and electricity grid-connection is smoothly solved.
Description
Technical field
The utility model relates to a kind of wind generating unit that utilizes wind energy, particularly a kind of device that utilizes pressurized air that the electric energy of wind energy transformation is generated electricity again.
Background technique
Wind-power electricity generation is a kind of technology with fastest developing speed in the new and renewable sources of energy field.Wind-power electricity generation is to utilize blower fan acquisition kinetic energy under the blowing of natural wind, then changes the mechanical energy that wind wheel rotates into, drives the generation of electricity by new energy engineering that generator generates electricity by speedup box again.The electric energy that wind power plant obtains from generator is incorporated into the power networks after the processing such as rectification, inversion the electrical network, for the user provides electric energy.But because wind speed, the wind direction of natural wind have sudden change and changeable characteristics, make a big impact to wind-power electricity generation, not only show the equipment such as the speedup box in the wind-power generating system, generator are produced impact, cause the damage to equipment, the topmost unstability that shows that also its wind-powered electricity generation is exerted oneself.Wind-powered electricity generation owing to wind-power generating system in the wind power plant is exerted oneself unstable so that it must use fired power generating unit significantly to participate in the frequency modulation work of wind-power generating system in normal course of operation, and the fired power generating unit governing speed is slower, is difficult to adapt to significantly changing fast of wind-powered electricity generation.Along with the rapid growth of wind-power electricity generation amount, wind-powered electricity generation sudden change amplitude will continue to increase, and this will affect greatly the mains frequency quality, and the wind-electricity integration problem becomes the maximum bottleneck of Wind Power Development.
The model utility content
The utility model technical issues that need to address provide a kind of energy-storage-type wind power generation system, can solve the unstable problem of wind-power generating system output electric energy, make the electric energy of wind-power electricity generation output supply with electrical network steadily, continuously, the difficult problem of wind-electricity integration is solved.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is as follows.
Caes formula wind-power generating system, comprise the blower fan, air compressor, gas holder, decompression tank, Pneumatic electric generating unit and the control gear that are arranged in the wind energy turbine set, the output terminal of described blower fan is connected with air compressor, the pressurized air output terminal of air compressor is communicated with gas holder by pipeline, the output terminal of gas holder is communicated with the decompression tank by control valve, and the output terminal of decompression tank is communicated with the air input port of Pneumatic electric generating unit by connecting tube; The input end of described control gear respectively be arranged on gas holder in, the decompression pressure transducer of being connected with the Pneumatic electric generating unit in the tank is connected, the output terminal of control gear is connected with control valve.
The concrete structure of Pneumatic electric generating unit described in the utility model is: the Pneumatic electric generating unit comprises the stage pneumatic motor, and the output terminal of described every grade of air motor connects a generator by coupling respectively.
Improvement of the present utility model is: all be communicated with by connecting tube between the adjacent air motor, the caliber of described connecting tube increases progressively from first order air motor to afterbody air motor.
Further improvement of the utility model is: also be provided with heat exchanger between described decompression tank and the Pneumatic electric generating unit.
Because the technological progress of having adopted technique scheme, the utility model to obtain is as follows.
The utility model is simple in structure, need not to participate in frequency modulation by fired power generating unit and gets final product the continuous electric energy of stable output, has reduced the pressure of electrical network, and the difficult problem of wind-electricity integration is solved smoothly.The air compressor of the utility model setting can be converted to the air compressing energy with the mechanical energy of blower fan output, because the compressed air of energy impact changeable and that sudden change brings of natural wind absorbs, so can not produce impact to the air motor in the wind-power generating system and generator, improve safety and reliability of the present utility model, prolonged the life-span of the present utility model.
Connecting tube caliber in the utility model Pneumatic electric generating unit arranges in the mode that increases progressively successively, reaches the effect of stablizing air pressure, makes the final stage air motor enter gas pressure in the atmosphere a little more than atmospheric pressure, greatly improves compressed-air actuated utilization ratio.Because pressurized gas temperature after decompression significantly reduces, to form larger temperature difference with ambient temperature, the utility model is given the gas make-up heat of low temperature from environment by the heat exchanger of setting, according to Thermodynamic Law, the temperature and pressure of gas will raise, energy increases, and finally makes air motor export more mechanical energy and improves unit efficiency.
Description of drawings
Fig. 1 is the utility model structural representation.
Wherein, 1. blower fan, 2. air compressor, 3. gas holder, 4. decompression tank, 5. Pneumatic electric generating unit, 51. air motors, 52. generators, 6. control gear, 7. control valve, 8. heat exchanger.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further details:
A kind of Caes formula wind-power generating system, its structure as shown in Figure 1.Comprise the blower fan 1, air compressor 2, gas holder 3, control valve 7, decompression tank 4, heat exchanger 8, Pneumatic electric generating unit 5 and the control gear 6 that are arranged in the wind energy turbine set.Pneumatic electric generating unit 5 comprises stage pneumatic motor 51, and the output terminal of every grade of air motor connects a generator by coupling respectively; The Pneumatic electric generating unit is provided with two air motors in the present embodiment, is respectively first order air motor and second level air motor.
The output terminal of blower fan is connected with air compressor by electric transmission line, and the unstable electric energy of wind-driven generator output is converted to the power source of air compressor, is used for the air compressing with the delivery air compressor.The pressurized air output terminal of air compressor is communicated with gas holder by pipeline, the output terminal of gas holder is communicated with the decompression tank by control valve, the output terminal of decompression tank is communicated with heat exchanger by pipeline, the output terminal of heat exchanger is communicated with the air input port of first order air motor by the connecting tube I, the air output port of first order air motor is communicated with the air input port of second level air motor by the connecting tube II, and the air output port of second level air motor directly will be discarded and enter in the atmosphere; The caliber of connecting tube I is less than the caliber of connecting tube II in the present embodiment.First order air motor is connected pto＝power take-off and is connected with a generator by coupling respectively with second level air motor.
Be provided with pressure transducer in gas holder, decompression tank, the Pneumatic electric generating unit, the output terminal of pressure transducer is connected with control gear, is used in pressure, the pressure in the decompression tank and the Pneumatic electric generating unit of the gas holder that will gather the pressure transmission in the connecting tube to control gear.The output terminal of control gear is connected with control valve, be used for the aperture according to each force value adjusting control valve that gathers, by the decompression tank pressurized air of gas holder output is flowed to the Pneumatic electric generating unit with constant force value and generate electricity, continue so that the electric energy that guarantees the output of Pneumatic electric generating unit is constant.
Gas holder adopts compound gas tank, and the inner bag of gas holder adopts the thin-wall aluminum alloy inner bag, and the outer wall of gas holder twines high-strength carbon fiber, makes gas holder have the characteristics of lightweight, high pressure resistant and safety durable, and storage pressure can be greatly more than the 50MPa.
Working principle of the present utility model is as described below.
Blower fan is used under the promotion of natural wind natural wind energy being converted to mechanical energy, and mechanical energy changes not the quietly electric energy of output into, by electric transmission line air supply compressor operating.The air input end of air compressor is air amount from atmosphere directly, under the mechanical energy effect of blower fan transmission with air compressing, the pressurized air output terminal of air compressor is exported to gas holder by pipeline with pressurized air, and pressurized air is stored in the gas holder.Pressure in the pressure transducer Real-Time Monitoring gas holder in the gas holder, and force value is transferred to control gear.
Control gear judges whether to satisfy the normal operation of Pneumatic electric generating unit according to the force value that gathers from gas holder, when compressed-air actuated force value can satisfy the normal operation of Pneumatic electric generating unit in the gas holder, control gear was according to the aperture of the specified output value adjusting control valve of Pneumatic electric generating unit.After control valve is opened, pressurized air bronze drum pipeline enters in the decompression tank and reduces pressure, after reducing pressure pressurized air, the force value that the decompression tank is set according to control gear carries the air input port of first order air motor by the connecting tube I, first order air motor does work under the effect of air, drives generator and generates electricity.
The air output port of first order air motor is delivered to unnecessary air the air input port of second level air motor by the connecting tube II, second level air motor does work under the effect of air, drives the generator that is attached thereto and generates electricity.The air output port of second level air motor directly will be discarded and enter in the atmosphere.
Pressurized gas temperature after decompression significantly reduces, and will form larger temperature difference with ambient temperature, has reduced the utilization of the utility model thermal efficiency.Between decompression tank and pneumatic generator set, be provided with a heat exchanger in the present embodiment, be used for from the gas make-up heat of environment to low temperature.According to Thermodynamic Law, the temperature and pressure of gas will raise, and energy increases, and finally makes air motor export more mechanical energy, improve generating efficiency.
Claims (4)
1. Caes formula wind-power generating system, comprise the blower fan (1) that is arranged in the wind energy turbine set, it is characterized in that: also comprise air compressor (2), gas holder (3), decompression tank (4), Pneumatic electric generating unit (5) and control gear (6), the output terminal of described blower fan (1) is connected with air compressor (2), the pressurized air output terminal of air compressor (2) is communicated with gas holder (3) by pipeline, the output terminal of gas holder (3) is communicated with decompression tank (4) by control valve (7), and the output terminal of decompression tank (4) is communicated with by the air input port of connecting tube with Pneumatic electric generating unit (5); The input end of described control gear (6) respectively be arranged on gas holder in, the decompression pressure transducer of being connected with the Pneumatic electric generating unit in the tank is connected, the output terminal of control gear is connected with control valve.
2. Caes formula wind-power generating system according to claim 1, it is characterized in that: described Pneumatic electric generating unit (5) comprises stage pneumatic motor (51), and the output terminal of described every grade of air motor (51) connects a generator (52) by coupling respectively.
3. Caes formula wind-power generating system according to claim 2 is characterized in that: all be communicated with by connecting tube between the adjacent air motor, the caliber of described connecting tube increases progressively from first order air motor to afterbody air motor.
4. Caes formula wind-power generating system according to claim 1 is characterized in that: also be provided with heat exchanger (8) between described decompression tank (4) and the Pneumatic electric generating unit (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202545714U CN202645870U (en) | 2012-06-01 | 2012-06-01 | Compressed air energy storage type wind generating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202545714U CN202645870U (en) | 2012-06-01 | 2012-06-01 | Compressed air energy storage type wind generating system |
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| CN202645870U true CN202645870U (en) | 2013-01-02 |
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| CN2012202545714U Expired - Lifetime CN202645870U (en) | 2012-06-01 | 2012-06-01 | Compressed air energy storage type wind generating system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266352A (en) * | 2018-03-21 | 2018-07-10 | 重庆旭久新能源科技发展有限公司 | A kind of power generator and electricity-generating method using air pulse |
| CN108302325A (en) * | 2017-12-08 | 2018-07-20 | 山东新华联智能光伏有限公司 | Energy storage Transmission system |
| CN109028627A (en) * | 2018-07-04 | 2018-12-18 | 海南华盈泰能源科技有限公司 | A kind of system that cold medium compressor refrigeration and heating is driven based on wind-force |
| CN109340049A (en) * | 2018-11-15 | 2019-02-15 | 中国华能集团清洁能源技术研究院有限公司 | A kind of wind-power electricity generation hydrogen manufacturing brake apparatus and method |
-
2012
- 2012-06-01 CN CN2012202545714U patent/CN202645870U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302325A (en) * | 2017-12-08 | 2018-07-20 | 山东新华联智能光伏有限公司 | Energy storage Transmission system |
| CN108266352A (en) * | 2018-03-21 | 2018-07-10 | 重庆旭久新能源科技发展有限公司 | A kind of power generator and electricity-generating method using air pulse |
| CN109028627A (en) * | 2018-07-04 | 2018-12-18 | 海南华盈泰能源科技有限公司 | A kind of system that cold medium compressor refrigeration and heating is driven based on wind-force |
| CN109340049A (en) * | 2018-11-15 | 2019-02-15 | 中国华能集团清洁能源技术研究院有限公司 | A kind of wind-power electricity generation hydrogen manufacturing brake apparatus and method |
| CN109340049B (en) * | 2018-11-15 | 2024-03-19 | 中国华能集团清洁能源技术研究院有限公司 | Braking device and method for producing hydrogen by wind power generation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 050031 No. 6 Jianhua Street, Shijiazhuang City, Hebei Province Patentee after: China Electric Power Construction Group Hebei electric survey and Design Research Institute Co., Ltd. Address before: 050031 No. 6 Jianhua Street, Shijiazhuang City, Hebei Province Patentee before: Hebei Province Power Surveying Design & Research Institute |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |