CN203771692U - Single-tank electric energy storage device - Google Patents
Single-tank electric energy storage device Download PDFInfo
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- CN203771692U CN203771692U CN201420138089.3U CN201420138089U CN203771692U CN 203771692 U CN203771692 U CN 203771692U CN 201420138089 U CN201420138089 U CN 201420138089U CN 203771692 U CN203771692 U CN 203771692U
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Abstract
The utility model relates to a single-tank electric energy storage device. The single-tank electric energy storage device comprises an energy storage tank body, a heat storage medium inlet, a heat storage medium outlet, an energy releasing medium inlet, an energy releasing medium outlet, an electric heater, an electric heater connector and an energy utilizing device, wherein the heat storage medium inlet is formed in the top of the energy storage tank body; the heat storage medium outlet is formed in the bottom of the energy storage tank body; the energy releasing medium inlet, the energy releasing medium outlet and the electric heater connector are formed in the energy storage tank body; the energy releasing medium inlet is positioned below the energy releasing medium outlet; the electric heater is arranged on the bottom of the inside of the energy storage tank body; and the energy utilizing device is serially connected between the energy releasing medium inlet and the energy releasing medium outlet. By using the single-tank electric energy storage device, on the one hand, the utilization efficiency on wind power and photovoltaic power generation are improved, and on the other hand, problems existing in peak power and valley power of a power grid are solved; and moreover, the problem that urban pollution is severe is solved, and electrical energy utilization efficiency on the wind power, the photovoltaic power generation and the power grid is improved.
Description
Technical field
What the utility model related to wind-power electricity generation/photovoltaic generation and electrical network trough-electricity effectively utilizes technical field, particularly single tank energy storage equipment and the using method thereof of a kind of wind-powered electricity generation/photovoltaic generation and electrical network trough-electricity.
Background technology
Haze has shrouded China, and energy scarcity and environmental pollution have become the unprecedented challenge that China faces, and Renewable Energy Development is the national strategic policy of China.In July, 2012, China has issued " regenerative resource 12 development plans ", and by 2015, China's wind-powered electricity generation and solar grid-connected installation reached respectively 100,000,000 kw and 15,000,000 kw; To the year two thousand twenty, wind-powered electricity generation and solar grid-connected installation reach respectively 200,000,000 kw and 5,000 ten thousand kw.But the intermittence that the regenerative resource such as wind energy and solar energy is intrinsic and fluctuation are very large to the impact of electrical network, cause the not grid-connected ratio of China's wind-powered electricity generation and photovoltaic generation high, abandon wind/light serious.For example: within 2011, the not grid-connected rate of China's wind-powered electricity generation reaches 28%; The not grid-connected rate of photovoltaic reaches 29%; Three northern areas of China are on average abandoned wind rate and are about 16%, and the whole nation of 2012 always abandons air quantity and reach 20,000,000,000 kWh, are a times in 2011, and on average abandoning wind rate is 20%, and some areas reach 40%.If do not solve the extensive access problem of wind energy and solar energy, to 2015 and the year two thousand twenty, will lose respectively every year 3300 ten thousand tons and 7,000 ten thousand tons of standard coals.Therefore, energy accumulating technique is the extensive grid-connected active demand of regenerative resource.
In addition, China's electrical network is peak-valley difference expanding day round the clock, and current daily load rate is about 50%～60%.And along with load growth, in the time that a certain line load exceedes its capacity, needing upgrades or increase electrical network builds, traditional measure comprises upgrading or increases builds substation transformer, electric line etc.Such upgrading and enlarging cost are very high, and especially in crowded urban area, traditional upgrade method even cannot realize, and such as without circuit corridor, or consider that environment and factor attractive in appearance etc. can not laying-outs etc.Therefore, device installed capacity is more and more difficult to meet the demand of peak load, cause electrical network power cuts to limit consumption in the time of load peak, and when low ebb, cut off a lot of units, unit frequent start-stop not only increases energy consumption, and affects unit durability, makes power equipment on average utilize time decline, generating efficiency decline, economic benefit to reduce.If electrical network trough-electricity is stored by energy storage equipment, in the time of peak of power consumption, use, can reduce the peak-valley difference of electrical network, work the object that reaches peak load shifting, the electric power asset volume of saving will be very huge.Reducing peak-valley difference by certain technological means, significantly promote the utilization rate of electric power asset, is the main development direction of following power network development, and accumulation of energy can realize such object, thus utilize energy accumulating technique by large-scale regenerative resource grid-connected be active demand.
Utility model content
The purpose of this utility model is to propose a kind of simple single tank electric energy energy storage equipment, to improve the grid-connected problem of wind-power electricity generation/solar energy power generating electric energy, also can improve the efficiency of wind-powered electricity generation/photovoltaic generation, electrical network trough-electricity, to make full use of regenerative resource, and significantly reduce electric power storage cost, described electric energy can, for coming from the unstable electric energy of wind power/photovoltaic generating, can be also the valley power consumption in night.
For the weak point of above-mentioned technology, the utility model provides a kind of energy storage equipment, comprises energy storage tank tank body, heat transfer medium inlet, heat transfer medium outlet, releases energy medium inlet, releases energy media outlet, electric heater, electric heater connector, energy utilization device;
Described heat transfer medium inlet is located at the top of described energy storage tank tank body; Described heat transfer medium outlet is located at the bottom of described energy storage tank tank body;
Described release can medium inlet, release can media outlet and electric heater connector be located on described energy storage tank tank body, wherein said release can medium inlet described release can media outlet below;
Described electric heater is located at the bottom in energy storage tank tank body, if described electric heater is spiral cast heater, described electric heater connector just comprises electric heater power import and electric heater power outlet, if described electric heater is cylindrical heating rod, described electric heater connector is just electric heater entrance;
Described in described energy utilization device is connected in series in, release energy medium inlet and release between energy media outlet.
In addition, also be provided with the adiabatic cylinder dividing plate that stops high low-temperature heat quantity to mix in described energy storage tank tank interior, described thermal baffle can be the middle cylindrical casing vacuumizing, also can be the adiabatic cylinder that heat-insulating material is made, be fixed on the central authorities of energy storage tank tank body, the bottom of described adiabatic cylinder dividing plate not exclusively contacts with energy storage tank tank body, to form the passage of media flow in energy storage tank, described passage can be rectangle, square, circular, semicircle, on described dividing plate, cover is released energy heat exchanger, described releasing can heat exchanger be immersion spiral tube exchanger, can be provided with for the fin of enhanced heat exchange in described immersion spiral tube exchanger tube wall outside or not be provided with fin, in described immersion spiral tube exchanger pipe, be provided with for the enhanced tube of augmentation of heat transfer or be common tube.
Wherein, this device also comprises that energy utilizes heat exchanger, described energy utilization device be connected in series in releases can medium inlet with release between energy media outlet, and described energy utilizes between heat exchanger and energy utilization device and is connected in parallel.
Wherein, described energy utilization device is selected from any one in traditional thermoelectric conversion device, routine building thing heating installation.
The using method of energy storage equipment as above, comprises the accumulation of energy stage and releases the energy stage, is specially:
(1) the accumulation of energy stage: heat storage medium is added to energy storage tank tank body from heat transfer medium inlet, electric energy heats the heat storage medium in energy storage tank by electric heater, its temperature is raise, convert electric energy to thermal energy transfer to heat storage medium, be stored in energy storage tank, until be full of high-temperature heat accumulation medium in whole energy storage tank, accumulation of energy finishes; Described heat transfer medium can be fuse salt, water or other heat conduction wet goods.
(2) release the energy stage: low temperature is released and can be entered in energy storage tank medium inlet from releasing by medium, with high-temperature heat accumulation Medium Exchange heat, temperature raises, high temperature after intensification is released and can be discharged by media outlet from releasing by medium, the high temperature of discharging is released energy medium or is directly entered energy utilization device and is utilized, or utilize heat exchanger through energy, utilize heat exchanger and energy utilization device that energy is used by energy.
Wherein, the described accumulation of energy stage can carry out with releasing in the stage simultaneously.
About releasing the energy stage, if also comprise dividing plate in this device and release energy heat exchanger, described exoergic process is as follows: low temperature release can medium from releasing and can medium inlet entering in energy storage tank, releasing energy heat exchanger inside and high ambient temperatures heat storage medium heat-shift, temperature raises, and the high temperature after intensification is released and can be discharged by media outlet from releasing by medium.In exoergic process, owing to having taken away the heat obtaining by heat exchanger from high-temperature heat accumulation medium by releasing, release and can heat exchanger high ambient temperatures heat storage medium temperature reduce, because cryogenic media density has more greatly the trend moving downward, high-temperature medium density is relatively little the trend moving upward, so time the low-temperature heat accumulating medium of temperature after reducing just move bottom along the passage between dividing plate and energy storage tank to energy storage tank, the high-temperature heat accumulation medium that simultaneously promotes dividing plate inside moves upward, can keep for a long time the condition of high temperature by heat exchanger Heat Transfer Around medium thereby keep releasing, improve and release energy efficiency.In the time that fuse salt temperature is consistent in whole energy storage tank, releases and can finish.
The beneficial effects of the utility model are:
(1) single tank accumulation of energy is released can apparatus structure simple, compact, easy to use.
(2) single tank energy storage equipment manufacturing cost is lower.Compared with two tank accumulation of energys, only have a storage tank that its manufacturing cost is reduced.Energy device is released in single tank accumulation of energy simultaneously, and device running is simple, and maintenance cost reduces.
(3) operation temperature area haves a wide reach.According to actual accumulation of energy temperature requirements, select the heat transfer medium of suitable fusing point and the scope of application as energy-accumulation material, make the interior heat transfer medium of tank in single tank accumulation of energy, exoergic process in higher temperature range, reduce the size of energy storage tank, reached good accumulation of energy simultaneously, released energy effect.
(4) improve the efficiency of wind-powered electricity generation and solar energy power generating and electrical network, also solved the peak valley problem of electrical network simultaneously, and the serious problem of municipal pollution.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the structural representation of embodiment 1 dividing plate;
Fig. 3 is the structural representation of embodiment 2;
Fig. 4 is the structural representation of embodiment 3;
Fig. 5 is the structural representation of embodiment 4;
Main element symbol description:
1-energy storage tank tank body; 2-heat storage medium entrance; The outlet of 3-heat storage medium; 4-releases energy medium inlet; 5-releases energy media outlet; 6-dividing plate; 7-releases energy heat exchanger; 8-electric heater power outlet; 9-electric heater power import; 10-electric heater; 11-energy utilizes heat exchanger; 12-energy utilization device
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1:
Single tank energy storage equipment as shown in Figure 1, comprises energy storage tank tank body 1, heat storage medium entrance 2, heat storage medium outlet 3, releases energy medium inlet 4, releases energy media outlet 5, electric heater 10, electric heater connector, energy utilization device 12;
Described heat storage medium entrance 2 is located at the top of described energy storage tank tank body 1; Described heat storage medium outlet 3 is located at the bottom of described energy storage tank tank body 1;
Described release can medium inlet 4, release can media outlet 5 and electric heater connector be located on described energy storage tank tank body 1, wherein said release can medium inlet 4 described release can media outlet 5 below;
Described electric heater 10 is located at the bottom in energy storage tank tank body 1, if described electric heater 10 is spiral cast heater, described electric heater connector just comprises electric heater power import 9 and electric heater power outlet 8, if described electric heater 10 is cylindrical heating rod, described electric heater connector is just electric heater entrance;
Described in described energy utilization device 12 is connected in series in, release energy medium inlet 4 and release between energy media outlet 5, described energy utilization device 12 is traditional thermoelectric conversion device.
In addition, also be provided with the dividing plate 6 that stops high low-temperature heat quantity to mix in described energy storage tank tank body 1 inside, as shown in Figure 2, described dividing plate 6 is heat-insulating shield, be fixed on the central authorities of energy storage tank tank body 1, the bottom of described cylindrical casing not exclusively contacts with energy storage tank tank body 1, to form the passage of media flow in energy storage tank, be conducive to release MEDIA FLOW after energy and cross the bottom of energy storage tank, drive high-temperature heat-transfer medium to move upward; On described dividing plate 6, cover is released energy heat exchanger 7, described releasing can heat exchanger 7 be immersion spiral tube exchanger, the fin for enhanced heat exchange can be provided with in described immersion spiral tube exchanger tube wall outside, in described immersion spiral tube exchanger pipe, the enhanced tube for augmentation of heat transfer can be provided with.
In addition, this device also comprises that energy utilizes heat exchanger 11, and described energy utilizes heat exchanger 11 and described energy utilization device 12 to be connected in parallel and releases energy medium inlet 4 and release between energy media outlet 5.
The using method of this device is as follows: wind-powered electricity generation/photovoltaic generation or trough-electricity heating in evening heat storage medium, and temperature raises, and electric energy converts the thermal energy storage of heat storage medium to; In the time that temperature in energy storage tank reaches predetermined temperature, low temperature is released and can be entered energy storage tank tank body 1 medium inlet 4 from releasing by medium, release and can carry out exchange heat with heat storage medium around by heat exchanger 7, temperature raises, medium after intensification can flow out by media outlet 5 from releasing, entering outside energy utilizes heat exchanger 11 to complete exoergic process, heat energy is used to generating or building heats, supplying hot water, it is released can medium can be water, air or other heat conduction wet goods media, the low temperature of releasing after energy is released and can be entered energy storage tank in medium inlet 4 by releasing by medium, completes a circulation.In exoergic process, owing to releasing releasing energy medium and being stored in the high-temperature heat accumulation Medium Exchange heat in energy storage tank tank body 1 in energy heat exchanger 7, release energy heat exchanger 7 heat storage medium temperature reduction around, the circular passage forming along energy storage tank and dividing plate 6 moves downward, drive bottom high-temperature heat accumulation medium upwards to flow along the center of dividing plate 6, high-temperature heat accumulation medium is from inflow circular passage, top, can keep for a long time high temperature at the heat storage medium of releasing around can heat exchanger 7 like this, improve the energy efficiency of releasing of heat storage medium.
Embodiment 2:
Similar with embodiment 1, just change electric heater into cylindrical heater, now connector is just electric heater power import 9, other processes are identical with embodiment 1, as shown in Figure 3.
Embodiment 3:
As shown in Figure 4, similar to Example 2, just change energy utilization device 12 into conventional heating/hot-water supply, to remove energy and utilized heat exchanger 11, other processes are identical with embodiment 2.Can medium for releasing with water, water by release can medium inlet 4 enter in energy storage tank release can heat exchanger 7, temperature raises, pressure increases, and can go out by media outlet 5 by releasing, and enters conventional heating/hot-water supply, realizes effective utilization of heat energy.
Embodiment 4:
As shown in Figure 5, similar to Example 2, different is, heat storage medium with release can medium identically, in energy storage tank tank body 1, not having immersion to release can heat exchanger and dividing plate 6, in tank, heat storage medium is heated, melts by electric heater 10, after temperature raises, electric energy is converted to the thermal energy storage of heat storage medium; While releasing energy, heat storage medium can be drawn out of by media outlet 5 from releasing, and in energy utilizes heat exchanger 11, releases energy, effectively utilize for outside, the low-temperature heat accumulating medium of releasing after energy is released from the bottom of energy storage tank and can be entered energy storage tank in medium inlet 4, under the effect of electric heater 10, temperature raises, and moves upward.So process, realizes storage and the utilization of electric energy.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. a single tank electric energy energy storage equipment, is characterized in that, comprises energy storage tank tank body, heat storage medium entrance, heat storage medium outlet, releases energy medium inlet, releases energy media outlet, electric heater, electric heater connector, energy utilization device;
Described heat storage medium entrance is located at the top of described energy storage tank tank body; Described heat storage medium outlet is located at the bottom of described energy storage tank tank body;
Described release can medium inlet, release can media outlet and electric heater connector be located on described energy storage tank tank body, wherein said release can medium inlet described release can media outlet below;
Described electric heater is located at the bottom in energy storage tank tank body;
Described in described energy utilization device is connected in series in, release energy medium inlet and release between energy media outlet.
2. energy storage equipment as claimed in claim 1, is characterized in that, is also provided with the thermal baffle that stops high low-temperature heat quantity to mix in described energy storage tank tank interior, and thermal baffle is fixed on the central authorities of accumulation of energy tank body.
3. energy storage equipment as claimed in claim 2, is characterized in that, on described dividing plate top, cover has
immersionhelix tube is released can heat exchanger.
4. energy storage equipment as claimed in claim 3, is characterized in that, is provided with the fin for enhanced heat exchange in described immersion spiral tube exchanger tube wall outside, in described immersion spiral tube exchanger pipe, can be provided with the enhanced tube for augmentation of heat transfer.
5. energy storage equipment as claimed in claim 1, is characterized in that, also comprises that the energy being connected in parallel with described energy utilization device utilizes heat exchanger.
6. energy storage equipment as claimed in claim 1, is characterized in that, described energy utilization device is selected from any one in traditional thermoelectric conversion device, routine building thing heating installation.
7. energy storage equipment as claimed in claim 1, is characterized in that, described electric heater is selected from any one in spiral cast heater, cylindrical heating rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138089.3U CN203771692U (en) | 2014-03-25 | 2014-03-25 | Single-tank electric energy storage device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138089.3U CN203771692U (en) | 2014-03-25 | 2014-03-25 | Single-tank electric energy storage device |
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| CN203771692U true CN203771692U (en) | 2014-08-13 |
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| CN201420138089.3U Expired - Fee Related CN203771692U (en) | 2014-03-25 | 2014-03-25 | Single-tank electric energy storage device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836795A (en) * | 2014-03-25 | 2014-06-04 | 北京工业大学 | Single-pot electric energy storage device and using method thereof |
| CN104864597A (en) * | 2015-06-04 | 2015-08-26 | 中国环境科学研究院 | Three-phase heat exchanging self-insulation device |
| CN105180247A (en) * | 2015-08-26 | 2015-12-23 | 朱杰 | Central heating system and method with heat accumulation peak regulation function |
| CN105627276A (en) * | 2016-03-23 | 2016-06-01 | 深圳市爱能森设备技术有限公司 | Molten salt heat storage single-tank internal arrangement heat exchange off-peak electricity steam boiler and heat exchange method |
| CN108019983A (en) * | 2018-01-23 | 2018-05-11 | 华北电力大学 | New type solar energy list tank phase-change heat storage absorption heat pump |
| CN108151115A (en) * | 2017-12-27 | 2018-06-12 | 东南大学 | A kind of fused salt accumulation of heat and heat energy stepped utilization system |
| CN108150987A (en) * | 2017-12-27 | 2018-06-12 | 东南大学 | A kind of separate type fuse salt thermal storage electric boiler |
| CN108150986A (en) * | 2017-12-27 | 2018-06-12 | 东南大学 | A kind of fuse salt phase-transition heat-storage electric boiler |
| CN108266783A (en) * | 2018-01-22 | 2018-07-10 | 王体会 | A kind of luminous energy air energy thermal source and the three-in-one heat collector of electric heating heat accumulating type |
| CN115325866A (en) * | 2022-07-27 | 2022-11-11 | 东方电气集团东方锅炉股份有限公司 | Movable single-tank heat storage and exchange device and system |
-
2014
- 2014-03-25 CN CN201420138089.3U patent/CN203771692U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836795A (en) * | 2014-03-25 | 2014-06-04 | 北京工业大学 | Single-pot electric energy storage device and using method thereof |
| CN104864597A (en) * | 2015-06-04 | 2015-08-26 | 中国环境科学研究院 | Three-phase heat exchanging self-insulation device |
| CN105180247A (en) * | 2015-08-26 | 2015-12-23 | 朱杰 | Central heating system and method with heat accumulation peak regulation function |
| CN105627276A (en) * | 2016-03-23 | 2016-06-01 | 深圳市爱能森设备技术有限公司 | Molten salt heat storage single-tank internal arrangement heat exchange off-peak electricity steam boiler and heat exchange method |
| CN108151115A (en) * | 2017-12-27 | 2018-06-12 | 东南大学 | A kind of fused salt accumulation of heat and heat energy stepped utilization system |
| CN108150987A (en) * | 2017-12-27 | 2018-06-12 | 东南大学 | A kind of separate type fuse salt thermal storage electric boiler |
| CN108150986A (en) * | 2017-12-27 | 2018-06-12 | 东南大学 | A kind of fuse salt phase-transition heat-storage electric boiler |
| CN108266783A (en) * | 2018-01-22 | 2018-07-10 | 王体会 | A kind of luminous energy air energy thermal source and the three-in-one heat collector of electric heating heat accumulating type |
| CN108019983A (en) * | 2018-01-23 | 2018-05-11 | 华北电力大学 | New type solar energy list tank phase-change heat storage absorption heat pump |
| CN115325866A (en) * | 2022-07-27 | 2022-11-11 | 东方电气集团东方锅炉股份有限公司 | Movable single-tank heat storage and exchange device and system |
| CN115325866B (en) * | 2022-07-27 | 2024-06-11 | 东方电气集团东方锅炉股份有限公司 | Movable single-tank heat storage and exchange device and system |
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