CN209838595U - Wind power generation system - Google Patents
Wind power generation system Download PDFInfo
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- CN209838595U CN209838595U CN201920597609.XU CN201920597609U CN209838595U CN 209838595 U CN209838595 U CN 209838595U CN 201920597609 U CN201920597609 U CN 201920597609U CN 209838595 U CN209838595 U CN 209838595U
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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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model belongs to the technical field of wind power generation. In order to solve because there is intermittent type nature and poor stability's problem in the wind energy, and lead to conventional wind power generation system to have the poor problem of power generation stability, the utility model provides a wind power generation system. The wind power generation system comprises a fan, an air compressor, an energy storage unit, a turbine generator, a circulating pump, a heat absorption unit and a heat release unit; the input end of the air compressor is connected with the output shaft of the fan, the output end of the air compressor is connected with the input end of the energy storage unit, and the output end of the energy storage unit is connected with the turbine generator; the circulating pump, the heat absorption unit and the heat release unit are connected through pipelines filled with media to form a loop, the heat absorption unit is connected with the air compressor and used for absorbing heat generated in the operation process of the air compressor through the media, and the heat release unit is connected with the turbine generator and used for releasing the heat through the media to drive the turbine generator to operate. The utility model discloses a power generation system can utilize the wind energy to realize lasting steady electricity generation.
Description
Technical Field
The utility model belongs to the technical field of the wind power generation, concretely relates to wind power generation system.
Background
Wind energy is increasingly gaining attention as a clean renewable energy source in all countries of the world. The expected exploitable wind energy storage capacity of China is about 10 hundred million kilowatts, the wind power loading capacity of China reaches 1.88 hundred million kilowatts by the end of 2017, and the wind power loading capacity of China is expected to be increased to 2.23 hundred million kilowatts in 2019.
Although the wind energy storage capacity is large in China and the wind power loading capacity is also rapidly improved, the wind power cannot be used as the core power generation power to generate power at present, and one reason of the problem is that the wind energy has two fatal problems of intermittency and poor stability. Due to the two problems of wind energy, the power generation stability of a conventional wind power generation system is poor, the condition that the fan cannot generate power continuously can occur in the period of high load demand of a power grid, the demand on electric energy can not be met in time, otherwise, the generated electric quantity which can continuously generate full load can occur in the period of low load demand of the power grid, and all the generated electric quantity can not be used in the power grid, so that the electric energy is wasted.
SUMMERY OF THE UTILITY MODEL
In order to solve because there is intermittent type nature and poor stability's problem in the wind energy, and lead to conventional wind power generation system to have the poor problem of power generation stability, the utility model provides an utilize wind energy to acquire compressed air and then regard compressed air as the wind power generation system of power supply. The wind power generation system comprises a fan, an air compressor, an energy storage unit, a turbine generator, a circulating pump, a heat absorption unit and a heat release unit; the input end of the air compressor is connected with the output shaft of the fan, the output end of the air compressor is connected with the input end of the energy storage unit, and the output end of the energy storage unit is connected with the turbine generator; the circulating pump, the heat absorption unit and the heat release unit are connected through pipelines filled with fluid media to form a loop, the heat absorption unit is connected with the air compressor and used for absorbing heat generated in the operation process of the air compressor by the fluid media, and the heat release unit is connected with the turbine generator and used for releasing the heat by the fluid media to drive the turbine generator to operate.
Preferably, the fan of the fan is a vertical shaft fan.
Preferably, the system further comprises a gearbox; the input shaft of the gearbox is connected with the output shaft of the fan, and the output shaft of the gearbox is connected with the input end of the air compressor.
Preferably, the energy storage unit is a compressed air storage tank.
Preferably, the heat absorption unit adopts a coil structure.
Preferably, the exothermic unit adopts a coil structure.
Preferably, the system also comprises a heat balance unit; the heat balance unit is positioned on a path of the fluid medium flowing from the heat releasing unit to the heat absorbing unit.
Further preferably, the fluid medium is an aqueous medium.
Further preferably, the heat balance unit is in the form of a water pool.
Preferably, the turbine generator is an air compression expander
The utility model discloses a wind power generation system has following beneficial technological effect:
1. the utility model discloses an among the wind power generation system, at first continuously collect and turn into compressed air with the help of the fan to the wind energy that has poor stability and intermittent type nature and save it, then continue steady electricity generation through the steady compressed air drive turbine generator of continuous output pressure again to the realization uses wind energy to carry out with the help of compressed air for the original energy and lasts steady electricity generation. Therefore, the problem of poor power generation stability when the conventional wind power generation system is used for directly utilizing wind energy to generate power can be avoided, and efficient utilization of the wind energy is realized.
2. The utility model discloses an among the wind power generation system, through setting up the heat balance return circuit of compriseing circulating pump, heat absorption unit and exothermic unit, can carry out the heat that produces among the air compression process to the air compressor and retrieve the storage to carry this heat to turbogenerator department and release the utilization, carry out the work electricity generation with supplementary compressed air drive turbogenerator. Therefore, partial heat loss generated in the process of converting wind energy into compressed air can be recycled and used as auxiliary energy to generate electricity, so that indirect utilization of the wind energy is realized, and the utilization of the wind energy is further improved.
3. The utility model discloses in, through set up the heat balance unit between exothermic unit and heat absorption unit to carry out the secondary heat release to the fluid medium through exothermic unit. Therefore, the temperature of the fluid medium flowing through the heat absorption unit subsequently can be reduced, the heat recovery efficiency of the fluid medium to heat is improved, the heat balance unit can reuse the heat released by the fluid medium secondarily, and the utilization rate of energy is further improved.
Drawings
Fig. 1 is a schematic structural diagram of a wind power generation system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a wind power generation system in the second embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1, the wind power generation system of the present embodiment includes a fan 1, an air compressor 2, an energy storage unit 3, a turbine generator 4, and a circulation pump 5, a heat absorption unit 6, and a heat release unit 7.
The input end of the air compressor 2 is connected with the output shaft of the fan 1, the output end of the air compressor 2 is connected with the input end of the energy storage unit 3, and the output end of the energy storage unit 3 is connected with the turbine generator 4. At this moment, the fan 1 can continuously collect intermittent and unstable wind energy and convert the wind energy into mechanical energy in real time, the mechanical energy drives the air compressor 2 to operate to generate compressed air, the generated compressed air is continuously stored in the energy storage unit 3, and finally the energy storage unit 3 continuously outputs the compressed air with stable pressure to drive the turbine generator 4 to continuously operate to generate power, so that the purpose of continuously and stably generating power by taking the wind energy as original energy is achieved.
In the present embodiment, the fan of the wind turbine 1 is preferably a vertical axis fan, so that the whole wind turbine forms a structural form of a vertical axis wind turbine. Therefore, the wind energy from different directions at the same height can be collected and utilized, so that more mechanical energy is obtained, and the utilization of the wind energy is improved.
In this embodiment, air compressor 2, energy storage unit 3 and turbine generator 4 all are located ground, and fan 1 passes through the mechanical energy transmission to ground that gear and transmission shaft formed with the wind energy conversion this moment to can furthest reduce the structural complexity and the weight of fan high altitude part, so that the erection installation of fan, can also reduce the structural strength requirement to fan support part simultaneously, reduce the manufacturing cost of fan, improve the fail safe nature of fan in operation process.
Referring to fig. 1, a gearbox 9 is further provided in the wind turbine system of the present embodiment. The gearbox 9 is located between the fan 1 and the air compressor 2 and used for adjusting the rotating speed of the output shaft of the fan, so that the rotating speed requirement of driving the air compressor 2 to normally operate is met, continuous stable operation of the air compressor 2 is guaranteed, and the operating efficiency of the air compressor is improved.
In this embodiment, the energy storage unit 3 directly selects a single compressed air storage tank to collect and store the compressed air, and similarly, in other embodiments, according to the size of the selected compressed air storage tank and the yield of the compressed air, the energy storage unit may be further configured as an energy storage unit group formed by connecting a plurality of compressed air storage tanks in parallel. Like this, under the condition that improves whole gas storage volume, through the split storage to compressed air, can improve the nimble accurate control to compressed air storage pressure, guarantee follow-up compressed air that can be more accurate output pressure is stable, improve the drive effect to turbine generator.
In addition, in the present embodiment, an air compression-expansion machine of an expansion type structure is selected as a turbine generator to perform power generation operation, and turbine generators of other structural forms, such as a piston type turbine generator, may also be selected.
Referring to fig. 1, in the wind turbine generator system of the present embodiment, a circulation pump 5, a heat absorption unit 6, and a heat release unit 7 are connected by a water-filled pipe 8 to form a heat balance circuit. The water in the pipeline 8 is driven by the circulating pump 5 to sequentially pass through the heat absorption unit 6 and the heat release unit 7 and then flow back to the circulating pump 5 again, the heat absorption unit 6 is connected with the air compressor 2 and is used for absorbing heat generated in the running process of the air compressor 2 by the flowing water and recycling part of heat which is originally directly released into the atmosphere; the heat release unit 7 is connected to the turbine generator 4, and is configured to release heat stored in water, and assist the high-pressure air to drive the turbine generator 4 to operate, thereby improving work performed on the turbine generator 4. Therefore, partial lost heat generated in the process of converting mechanical energy generated by wind energy into air energy can be recovered by utilizing water flowing through the air compressor and the turbine generator in sequence, and the mechanical energy is carried to the turbine generator for heat release and reutilization, so that the utilization rate of the whole power generation system to the wind energy is improved, and the conversion rate between the wind energy and the finally generated electric energy is improved.
In this embodiment, water with low cost, easy acquisition and high safety is selected as the fluid medium for heat absorption and release, and in other embodiments, according to the rate requirement for heat absorption and release, other fluids can be selected as the fluid medium for heat transfer, so as to increase the speed for heat absorption and release and increase the recycling rate of heat.
In addition, in this embodiment, the heat absorbing unit 6 and the heat releasing unit 7 are directly in a coil structure, so that the cost is reduced, and the installation and operation are convenient.
Referring to fig. 1, in the wind power generation system of the present embodiment, a thermal balance water tank 10 is further provided. The thermal balance water tank 10 as a thermal balance unit stores a large amount of medium water and is located on a path of the medium water flowing from the heat releasing unit 7 to the heat absorbing unit 6, while the circulation pump 5 is installed and fixed thereto. At this moment, the thermal balance water tank 10 not only can timely supplement the medium water in the pipeline as a water source, guarantee that the inside of the whole pipeline has enough medium water to absorb heat and recycle, but also can be used as an auxiliary release unit to exchange heat for the medium water which still remains part of heat after flowing through the heat release unit 7 and release again and reach the cooling effect of the medium water, guarantee that the low-temperature medium water can better absorb heat in the process of flowing through the heat absorption unit 6, thereby improving the recovery effect of heat, meanwhile, the hot water obtained through the heat exchange in the thermal balance water tank can also be used for domestic or production water, and further improving the heat utilization in the whole system.
Referring to fig. 2, in the wind power generation system of this embodiment, the fan 1, the air compressor 2 and the energy storage unit 3 are integrated into one energy collection unit in advance, and then a plurality of energy collection units are arranged in parallel to drive the same turbine generator 4 to generate power, at this time, the plurality of energy collection units can be distributed in different areas around to collect and store wind energy, and finally, the wind energy can be concentrated to perform power generation operation. Therefore, the using quantity of the turbine generators can be reduced, the cost is reduced, the collection quantity of wind energy can be improved to the maximum extent and the effect of driving the turbine generators to continuously and stably generate power can be achieved for regions with uneven wind resource distribution, extremely poor stability and serious intermittence, and the continuous and stable operation of the wind power generation system is guaranteed.
Claims (10)
1. A wind power generation system is characterized by comprising a fan, an air compressor, an energy storage unit, a turbine generator, a circulating pump, a heat absorption unit and a heat release unit; the input end of the air compressor is connected with the output shaft of the fan, the output end of the air compressor is connected with the input end of the energy storage unit, and the output end of the energy storage unit is connected with the turbine generator; the circulating pump, the heat absorption unit and the heat release unit are connected through pipelines filled with fluid media to form a loop, the heat absorption unit is connected with the air compressor and used for absorbing heat generated in the operation process of the air compressor by the fluid media, and the heat release unit is connected with the turbine generator and used for releasing the heat by the fluid media to drive the turbine generator to operate.
2. The wind power generation system of claim 1, wherein the fan of the wind turbine is a vertical axis fan.
3. The wind power system of claim 1, further comprising a gearbox; the input shaft of the gearbox is connected with the output shaft of the fan, and the output shaft of the gearbox is connected with the input end of the air compressor.
4. Wind power system according to claim 1, wherein the energy storage unit is selected from compressed air storage tanks.
5. The wind-powered electric generation system of claim 1, wherein the heat absorption unit is of a coil-and-tube configuration.
6. The wind-powered electric generation system of claim 1, wherein the heat-emitting unit is of a coil-and-tube configuration.
7. Wind power system according to any of claims 1-6, further comprising a heat balancing unit; the heat balance unit is positioned on a path of the fluid medium flowing from the heat releasing unit to the heat absorbing unit.
8. Wind power system according to claim 7, wherein said fluid medium is an aqueous medium.
9. Wind power system according to claim 8, wherein the heat balancing unit is in the form of a water basin.
10. Wind power system according to any of claims 1-6, wherein said turbine generator is selected from air compressor expanders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920597609.XU CN209838595U (en) | 2019-04-28 | 2019-04-28 | Wind power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920597609.XU CN209838595U (en) | 2019-04-28 | 2019-04-28 | Wind power generation system |
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| CN209838595U true CN209838595U (en) | 2019-12-24 |
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| CN201920597609.XU Active CN209838595U (en) | 2019-04-28 | 2019-04-28 | Wind power generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795417A (en) * | 2020-06-09 | 2020-10-20 | 李艳枚 | Wind energy combined electric heating system |
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2019
- 2019-04-28 CN CN201920597609.XU patent/CN209838595U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795417A (en) * | 2020-06-09 | 2020-10-20 | 李艳枚 | Wind energy combined electric heating system |
| CN111795417B (en) * | 2020-06-09 | 2021-12-10 | 湖南南方健坤暖通设备有限公司 | Wind energy combined electric heating system |
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