CN202926531U - Wind power generation low-temperature energy storage system - Google Patents
Wind power generation low-temperature energy storage system Download PDFInfo
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- CN202926531U CN202926531U CN2012205658447U CN201220565844U CN202926531U CN 202926531 U CN202926531 U CN 202926531U CN 2012205658447 U CN2012205658447 U CN 2012205658447U CN 201220565844 U CN201220565844 U CN 201220565844U CN 202926531 U CN202926531 U CN 202926531U
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The utility model discloses a wind power generation low-temperature energy storage system, and belongs to the technical field of energy. The wind power generation low-temperature energy storage system comprises a wind driven generator (1), an air compressor set (2), an air separator set (3), a liquid air storage tank (4), a liquid air pressure pump (5), a three-level air heat exchanger set (6), a water heat storage device, an electric heater (8), a solid heat accumulator (9), a high-pressure turbine (10), a low-pressure turbine (11) and an energy storage generator set (12). The air separator set (3) comprises a high-pressure expansion machine (13), a first level heat exchanger (14), a second level heat exchanger (15) and a throttle valve (16). The wind power generation low-temperature energy storage system is characterized in that by using low-temperature compressed air to store energy, the energy is released to generate electricity in electricity consumption rush hour, and meanwhile high grade energy is obtained through the heat storage of liquid and solid, and the generating efficiency of the generator is improved. The system is big in energy density, high in capacity usage ratio, and free from the limitation of geographical condition, and achieves peak shifting electricity generating.
Description
Technical field
The utility model relates to a kind of geographical conditions that are not subjected to be limited, and the wind-power electricity generation low temperature energy-storage system that energy density is higher belongs to energy technology field.
Background of invention
Along with the development of national economy in recent years, China is also increasing to the demand of electric power resource.In the power plant that has been constructed and put into operation, the electric motor power of thermal power plant account for more than 70%.Due in the process of thermal power plant generating mainly take non-renewable fossil fuels such as coal, oil, rock gases as the energy, inevitably war has produced a large amount of pollutants in process of production, can produce a large amount of greenhouse gases simultaneously.Renewable energy sources grows up under this background just grows up.Compare with other energy, existing renewable energy sources has incomparable separately advantage on environment friendly, Security, distribution, at aspects such as environmental protection, energy-saving and emission-reduction, huge economic and social benefits are arranged.
But for most of renewable energy sourcess such as wind energies, timeliness, seasonal fluctuation due to the energy itself, more responsive to external conditions such as weather, the power that self provides is not very stable, and the power consumption in city neither a constant process, therefore, the peak value of generating may not overlap with the peak value of electricity consumption, has caused the significant wastage of the energy.
The model utility content
The utility model relates to a kind of geographical conditions that are not subjected to be limited, the wind-power electricity generation low temperature energy-storage system that energy density is higher.
Above-mentioned air compressing liquefaction system comprises wind-driven generator, air compressor unit, and the air separation machine group, this air separation machine group has suction port, liquid outlet, gas returning port; Above-mentioned wind-driven generator is connected with motor by circuit, the motor drives air compressor unit, and the air compressor unit relief opening is connected with air separation machine group suction port; Above-mentioned air separation machine group is by high pressure expansion machine, first-class heat exchanger, and secondary heat exchanger, throttle valve forms; This air separation machine group suction port is divided into two branch roads, and a branch road is successively through being connected with air separation machine group liquid outlet after the hot side-entrance of first-class heat exchanger, the hot side outlet of first-class heat exchanger, the hot side-entrance of secondary heat exchanger, the hot side outlet of secondary heat exchanger, throttle valve; Another branch road is connected with the suction port of high pressure expansion machine, the relief opening of high pressure expansion machine is divided into two branch roads, one the tunnel successively through being connected with the suction port of high pressure expansion machine after the import of first-class heat exchanger cold side, the outlet of first-class heat exchanger cold side, and another road is successively through being connected with air separation machine group gas returning port after the import of secondary heat exchanger cold side, the outlet of secondary heat exchanger cold side; Above-mentioned cryopreservation system is comprised of liquid air storage tank and attached adiabatic apparatus thereof; Wherein liquid air storage tank liquid entering hole is connected with air separation machine group liquid outlet, and liquid air storage tank gas backstreaming mouth is connected with air separation machine group gas returning port; Said heating system is by the liquid air compression pump, three grades of air heat exchanger groups, and the water thermal storage equipment, electric heater, the solid heat storage device forms; Liquid air compression pump liquid entering hole connects liquid air storage tank liquid outlet, three grades of air heat exchanger group liquid entering holes connect liquid air pressurization pump liquid outlet, water thermal storage equipment suction port connects three grades of air heat exchanger group relief openings, and solid heat storage device the first suction port connects water thermal storage equipment relief opening; Be provided with heat transmission equipment between water thermal storage equipment and air compressor unit; Above-mentioned electric heater is installed in the solid heat storage device and by circuit and is connected with generator; Above-mentioned power generation system is successively by high-pressure turbine, low-pressure turbine, the energy storage power generation unit forms, solid heat storage device first row gas port is connected with the high-pressure turbine suction port, solid heat storage device the second suction port is connected with the high-pressure turbine relief opening, solid heat storage device second row gas port is connected with the low-pressure turbine suction port, and the low-pressure turbine relief opening is communicated with external environment condition.
Accumulation of energy and the method for supplying power to of described wind-power electricity generation low temperature energy-storage system, it is characterized in that comprising following process: during low power consumption, the electric power part that wind-driven generator produces is passed through electric heater, the heat solid thermal accumulator, another part drives air compressor unit, produce high temperature and high pressure gas, by the air separation machine group, make gas become cryogenic gas and be stored in the liquid air storage tank; The heat that air compressor produces is absorbed by the water thermal storage equipment by heat transmission equipment; Wherein the working procedure of air separation machine group is as follows: the gas that air compressor unit produces is divided into two-way, one the tunnel directly by first-class heat exchanger, secondary heat exchanger and throttle valve, enter the liquid air storage tank, another part enters high pressure expansion machine becomes cryogenic gas, refluxes as the low-temperature receiver of first-class heat exchanger; Gas in the liquid air storage tank refluxes as the low-temperature receiver of secondary heat exchanger with pipeline along with being on the increase of gas-liquid mixture in case can be discharged automatically; The high pressure expansion machine acting while is as the power of air compressor unit; During peak of power consumption, the liquid air compression pump extracts low temperature liquid air and pressurization from the liquid air storage tank, be heated to normal temperature by three grades of air heat exchanger groups, then by the water thermal storage equipment, heat for the second time, then pipeline is heated as high temperature and high pressure gas by the solid heat storage device, enter the high-pressure turbine acting, turbine outlet gas enters the solid heat storage device again after heat again, enters low-pressure turbine, drives the energy storage power generation unit and produces electric energy.
The beneficial effects of the utility model: the air separation machine group in system described in the utility model is according to the Hai Lande cyclic design.Improved cycle efficiency; Guarantee simultaneously the energy supply with the city of taking full advantage of of resource, the electric energy that power generation system produces is accumulated, the generating of avoiding the peak hour has very large meaning to the present situation of improving China's energy resource structure shortage.And also have the energy utilization mode of other modes except generating in the accumulation of energy process, the comprehensive utilization of the energy also is conducive to the raising of whole economic efficiency.
Description of drawings
Fig. 1 is wind-power electricity generation low temperature accumulation of energy system schematic;
Fig. 2 is air separation machine group principle schematic;
Number title in Fig. 1: 1, wind-driven generator, 2, air compressor unit, 3, the air separation machine group, 4, the liquid air storage tank, 5, liquid air compression pump, 6, three grades of air heat exchanger groups, 7, the water thermal storage equipment, 8, electric heater, 9, solid heat storage device, 10, high-pressure turbine, 11, low-pressure turbine, 12, the energy storage power generation unit.
Number title in Fig. 2: 13, high pressure expansion machine, 14, first-class heat exchanger, 15, secondary heat exchanger, 16, throttle valve.
Embodiment
According to shown in Figure 1, the wind-power electricity generation low temperature energy-storage system described in the utility model comprises wind-driven generator 1, air compressor unit 2, air separation machine group 3, liquid air storage tank 4,5, three grades of air heat exchanger groups 6 of liquid air compression pump, water thermal storage equipment 7, electric heater 8, solid heat storage device 9, high-pressure turbine 10, low-pressure turbine 11, energy storage power generation unit 12.Wherein shown in Figure 2, air separation machine group 3 comprises high pressure expansion machine 13, first-class heat exchanger 14, secondary heat exchanger 15, throttle valve 16.It is characterized in that specific power is large, energy utilizes high, is not subjected to the restriction of geographical conditions.
During low power consumption, the electric power part that wind-driven generator 1 produces is by electric heater 8, heat solid thermal accumulator 9, another part drives air compressor unit 2, produce high temperature and high pressure gas, by air separation machine group 3, make gas become cryogenic gas and be stored in liquid air storage tank 4.Air separation machine group 3 features are according to the Hai Lande cyclic design, the gas that air compressor unit 2 produces is divided into two-way, one the tunnel directly by first-class heat exchanger 14, secondary heat exchanger 15 and throttle valve 16, enter liquid air storage tank 4, another part enters high pressure expansion machine 13 becomes cryogenic gas, refluxes to can be used as the low-temperature receiver of first-class heat exchanger 14; Gas in liquid air storage tank 4 refluxes as the low-temperature receiver of secondary heat exchanger 15 with pipeline along with being on the increase of enterprise's mixture in case can be discharged automatically; High pressure expansion machine 13 actings can also be as the power of air compressor unit 2.The heat that air compressor 2 produces is absorbed by water thermal storage equipment 7 by heat transmission equipment.
During peak of power consumption, liquid air compression pump 5 extracts low temperature liquid air and pressurization from liquid air storage tank 4, be heated to normal temperature by three grades of air heat exchanger groups 6, then by water thermal storage equipment 7, heat for the second time, then pipeline is heated as high temperature and high pressure gas by solid heat storage device 9, enter high-pressure turbine 10 actings, turbine outlet gas enters solid heat storage device 9 again after heat again, enters low-pressure turbine 11, drives energy storage power generation unit 12 and produces electric energy.
Claims (1)
1. wind-power electricity generation low temperature energy-storage system is characterized in that: comprise air compressing liquefaction system, cryopreservation system, heating system and power generation system;
Above-mentioned air compressing liquefaction system comprises wind-driven generator (1), air compressor unit (2), and air separation machine group (3), this air separation machine group (3) has suction port, liquid outlet, gas returning port; Above-mentioned wind-driven generator (1) is connected with motor by circuit, motor drives air compressor unit (2), and air compressor unit (2) relief opening is connected with air separation machine group (3) suction port; Above-mentioned air separation machine group (3) is by high pressure expansion machine (13), first-class heat exchanger (14), and secondary heat exchanger (15), throttle valve (16) forms; This air separation machine group (3) suction port is divided into two branch roads, is connected with air separation machine group (3) liquid outlet after a branch road passes through the hot side-entrance of first-class heat exchanger (14), the hot side outlet of first-class heat exchanger (14), the hot side-entrance of secondary heat exchanger (15), the hot side outlet of secondary heat exchanger (15), throttle valve (16) successively; Another branch road is connected with the suction port of high pressure expansion machine (13), the relief opening of high pressure expansion machine (13) is divided into two branch roads, one the tunnel is connected with the suction port of high pressure expansion machine (13) after passing through successively the outlet of first-class heat exchanger (14) cold side import, first-class heat exchanger (14) cold side, and secondary heat exchanger (15) cold side import is passed through on another road successively, secondary heat exchanger (15) cold side exports afterwards and is connected with air separation machine group (3) gas returning port;
Above-mentioned cryopreservation system is comprised of liquid air storage tank (4) and attached adiabatic apparatus thereof; Wherein liquid air storage tank (4) liquid entering hole is connected with air separation machine group (3) liquid outlet, and liquid air storage tank (4) gas backstreaming mouth is connected with air separation machine group (3) gas returning port;
Said heating system is by liquid air compression pump (5), three grades of air heat exchanger groups (6), and water thermal storage equipment (7), electric heater (8), solid heat storage device (9) forms; Liquid air compression pump (5) liquid entering hole connects liquid air storage tank (4) liquid outlet, three grades of air heat exchanger groups (6) liquid entering hole connects liquid air pressurization pump (5) liquid outlet, water thermal storage equipment (7) suction port connects three grades of air heat exchanger groups (6) relief opening, and solid heat storage device (9) first suction ports connect water thermal storage equipment (7) relief opening; Be provided with heat transmission equipment between water thermal storage equipment (7) and air compressor unit; Above-mentioned electric heater (8) is installed in solid heat storage device (9) and by circuit and is connected with generator (1);
Above-mentioned power generation system is successively by high-pressure turbine (10), low-pressure turbine (11), energy storage power generation unit (12) forms, solid heat storage device (9) first row gas port is connected with high-pressure turbine (10) suction port, solid heat storage device (9) second suction ports are connected with high-pressure turbine (10) relief opening, solid heat storage device (9) second row gas port is connected with low-pressure turbine (11) suction port, and low-pressure turbine (11) relief opening is communicated with external environment condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205658447U CN202926531U (en) | 2012-10-31 | 2012-10-31 | Wind power generation low-temperature energy storage system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205658447U CN202926531U (en) | 2012-10-31 | 2012-10-31 | Wind power generation low-temperature energy storage system |
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| CN202926531U true CN202926531U (en) | 2013-05-08 |
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| CN2012205658447U Expired - Fee Related CN202926531U (en) | 2012-10-31 | 2012-10-31 | Wind power generation low-temperature energy storage system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913394A (en) * | 2012-10-31 | 2013-02-06 | 南京玖壹环境科技有限公司 | Wind power-generating low-temperature energy accumulation system and energy accumulation and power supply method |
| CN108252751A (en) * | 2018-01-09 | 2018-07-06 | 华北电力大学（保定） | A kind of liquefied air energy-storing and power-generating system for efficiently using liquid air cold energy |
-
2012
- 2012-10-31 CN CN2012205658447U patent/CN202926531U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913394A (en) * | 2012-10-31 | 2013-02-06 | 南京玖壹环境科技有限公司 | Wind power-generating low-temperature energy accumulation system and energy accumulation and power supply method |
| CN102913394B (en) * | 2012-10-31 | 2015-01-07 | 南京玖壹环境科技有限公司 | Wind power-generating low-temperature energy accumulation system and energy accumulation and power supply method |
| CN108252751A (en) * | 2018-01-09 | 2018-07-06 | 华北电力大学（保定） | A kind of liquefied air energy-storing and power-generating system for efficiently using liquid air cold energy |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20141031 |
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| EXPY | Termination of patent right or utility model |