CN102889698B - Solar energy storage system - Google Patents
Solar energy storage system Download PDFInfo
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- CN102889698B CN102889698B CN201210433866.2A CN201210433866A CN102889698B CN 102889698 B CN102889698 B CN 102889698B CN 201210433866 A CN201210433866 A CN 201210433866A CN 102889698 B CN102889698 B CN 102889698B
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- heat
- control valve
- storage medium
- exchange container
- solar energy
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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
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
The invention discloses a solar energy storage system, which comprises a sixth control valve, a control system, a heat exchange container, a high-temperature storage tank, a low-temperature storage tank and a solar heat collection device, wherein the solar heat collection device is communicated with heat utilization equipment and comprises a heat absorption medium inlet and a heat absorption medium outlet; a first heat absorption medium convection port, a second heat absorption medium convection port, a first heat storage medium convection port and a second heat storage medium convection port are formed on the heat exchange container; the first heat storage medium convection port of the heat exchange container is communicated with the high-temperature storage tank through a high-temperature heat storage medium circulating pump; the second heat storage medium convection port of the heat exchange container is communicated with the low-temperature storage tank through a low-temperature heat storage medium circulating pump; and a first control valve is connected between the first heat storage medium convection port of the heat exchange container and the high-temperature heat storage medium circulating pump. The solar energy storage system can achieve heat transfer by virtue of solar energy and heat storage media and can supply heat energy to the heat utilization equipment at daytime and night, and thus the heat utilization equipment can continuously work.
Description
Technical field
The present invention relates to a kind of solar energy storage system, belong to solar energy heat utilization field.
Background technology
For the needs of sustainable development, novel renewable energy is all found in countries in the world constantly.In all regenerative resources, solar energy is inexhaustible, nexhaustible and zero characteristic of polluting and be subject to people's special concern with it.At present, the utilization of the mankind to solar energy, has obtained progress at full speed.Effectively utilizing solar energy, is the sustainable development of China, and a good approach is provided.At present, rapidly, still, due to the difference of each department geographical environment, also relatively respectively there is length the sunshine-duration of the sun in the absorption switch technology development of solar energy.Effectively utilize this limited sunshine-duration, absorb some solar energy more, and it can be stored, become the mankind in the urgent need to.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, provide one to utilize solar energy and energy-accumulating medium heat exchange, and realize daytime and evening can be to bringing heat energy with hot equipment, can use the solar energy storage system of hot equipment continuous operation.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of solar energy storage system, it comprises the 6th control valve, control system, heat exchange container, high temperature storage tank and low-temperature storage tank and with the solar energy heat collector being connected with hot equipment, solar energy heat collector has heat-absorbing medium import and heat-absorbing medium outlet, on heat exchange container, there is the first heat-absorbing medium to head piece, the second heat-absorbing medium is to head piece, the first heat-storage medium to head piece and the second heat-storage medium to head piece, the heat-absorbing medium import of solar energy heat collector is connected to head piece with the second heat-absorbing medium of heat exchange container by heat-absorbing medium circulating pump group, the heat-absorbing medium outlet of solar energy heat collector is connected to head piece with the first heat-absorbing medium of heat exchange container by discharge control valve, the first heat-storage medium of heat exchange container is connected with high temperature storage tank by high-temperature heat-storage medium circulation pump to head piece, the second heat-storage medium of heat exchange container is connected with low-temperature storage tank by low temperature heat-storage medium circulating pump to head piece, the first heat-storage medium of heat exchange container is to being connected with the first control valve between head piece and high-temperature heat-storage medium circulation pump, the second heat-storage medium of heat exchange container is to being connected with the second control valve between head piece and low temperature heat-storage medium circulating pump, high temperature storage tank and the first heat-storage medium are to being connected with the 3rd control valve between head piece, low-temperature storage tank and the second heat-storage medium are to being connected with the 4th control valve between head piece, between described heat-absorbing medium circulating pump group and the heat-absorbing medium import of solar energy heat collector, be connected with inlet control valve, between described heat-absorbing medium circulating pump group and heat exchange container, be connected with the 5th control valve, one end of the 6th control valve is connected to the second heat-absorbing medium to head piece, the other end of the 6th control valve is connected between inlet control valve and heat-absorbing medium circulating pump group.
Further, the first heat-absorbing medium of described discharge control valve and heat exchange container is to being connected with the 7th control valve between head piece.
Adopted technique scheme, the present invention has following beneficial effect:
1, the present invention has realized conversion and the storage of solar energy, solar energy is implanted in energy-accumulating medium, and store for hot equipment evening, solar energy heat collector of the present invention is by day by solar energy energy transform into heat energy, for using hot equipment, simultaneously, also the thermal energy storage by heat exchange container, a part being converted to through solar energy heat collector is in ergastic substances, when there is no sunshine at night, convection current by heat-absorbing medium and energy-accumulating medium by the heat energy in energy-accumulating medium again convection current to heat-absorbing medium, for using hot equipment.
2, the present invention can be applicable to solar light-heat power-generation industry or other uses hot industry, realizes solar light-heat power-generation power station and other continuous operation by hot industry.The present invention provides source owing to daytime and evening all having heat energy, make with hot equipment can continuous operation.
Accompanying drawing explanation
Fig. 1 is the structure connection layout of solar energy storage system of the present invention;
Workpiece connection layout when Fig. 2 is solar energy storage system heat accumulation of the present invention;
Workpiece connection layout when Fig. 3 is solar energy storage system heat release of the present invention.
The specific embodiment
For content of the present invention is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation below,
As shown in Fig. 1 ~ 3, a kind of solar energy storage system, it comprises the 6th control valve 1, control system, heat exchange container 2, high temperature storage tank 8 and low-temperature storage tank 10 and with the solar energy heat collector 4 being connected with hot equipment 3, solar energy heat collector 4 has heat-absorbing medium import 4-2 and heat-absorbing medium outlet 4-1, on heat exchange container 2, there is the first heat-absorbing medium to head piece 2-1, the second heat-absorbing medium is to head piece 2-2, the first heat-storage medium to head piece 2-3 and the second heat-storage medium to head piece 2-4, the heat-absorbing medium import 4-1 of solar energy heat collector 4 is connected to head piece 2-2 with the second heat-absorbing medium of heat exchange container 2 by heat-absorbing medium circulating pump group 5, the heat-absorbing medium outlet 4-1 of solar energy heat collector 4 is connected to head piece 2-1 with the first heat-absorbing medium of heat exchange container 2 by discharge control valve 6, the first heat-storage medium of heat exchange container 2 is connected with high temperature storage tank 8 by high-temperature heat-storage medium circulation pump 7 to head piece 2-3, the second heat-storage medium of heat exchange container 2 is connected with low-temperature storage tank 10 by low temperature heat-storage medium circulating pump 9 to head piece 2-4, the first heat-storage medium of heat exchange container 2 is to being connected with the first control valve 11 between head piece 2-3 and high-temperature heat-storage medium circulation pump 7, the second heat-storage medium of heat exchange container 2 is to being connected with the second control valve 12 between head piece 2-4 and low temperature heat-storage medium circulating pump 9, high temperature storage tank 8 and the first heat-storage medium are to being connected with the 3rd control valve 13 between head piece 2-3, low-temperature storage tank 10 and the second heat-storage medium are to being connected with the 4th control valve 14 between head piece 2-4, between the heat-absorbing medium import 4-2 of heat-absorbing medium circulating pump group 5 and solar energy heat collector 4, be connected with inlet control valve 15, between heat-absorbing medium circulating pump group 5 and heat exchange container 2, be connected with the 5th control valve 16, one end of the 6th control valve 1 is connected to the second heat-absorbing medium to head piece 2-2, the other end of the 6th control valve 1 is connected between inlet control valve 15 and heat-absorbing medium circulating pump group 5.The first heat-absorbing medium of discharge control valve 6 and heat exchange container 2 is to being connected with the 7th control valve 17 between head piece 2-1.The present invention has realized conversion and the storage of solar energy, solar energy is implanted in energy-accumulating medium, and store for hot equipment evening, solar energy heat collector 4 of the present invention is by day by solar energy energy transform into heat energy, for using hot equipment, simultaneously, also the thermal energy storage by heat exchange container 2, a part being converted to through solar energy heat collector 4 is in ergastic substances, when there is no sunshine at night, convection current by heat-absorbing medium and energy-accumulating medium by the heat energy in energy-accumulating medium again convection current to heat-absorbing medium, for using hot equipment, in addition, the present invention can be applicable to solar light-heat power-generation industry or other uses hot industry, realize solar light-heat power-generation power station and other continuous operation by hot industry.The present invention provides source owing to daytime and evening all having heat energy, make with hot equipment can continuous operation.
Energy-accumulating medium used in the present invention adopts the slaine of the molten condition with energy storage characteristic.
Operation principle of the present invention is as follows:
The effect of heat exchange container 2 is: as shown in Figure 2, during heat accumulation, utilize solar energy heat collector 4, the heat-absorbing medium that directly heating is flowed through in solar energy heat collector 4, this heat-absorbing medium is a kind of high-temperature heat carrier, except directly, to providing heat energy with hot equipment 3, also this part heat-absorbing medium is transported in heat exchange container 2, the energy-accumulating medium that heating is flowed through in heat exchange container 2, this energy-accumulating medium is raised to high temperature by low temperature after absorbing heat in heat exchange container 2;
The effect of the 3rd control valve 13 is: the energy-accumulating medium of the high temperature after convection current is flow in high temperature storage tank 8.
The effect of high temperature storage tank 8 is: store the energy-accumulating medium of high temperature, the energy-accumulating medium of high temperature, in the interior storage of high temperature storage tank 8, is convenient to again be utilized, and due to surperficial heat dissipation problem, also will carry out necessary insulation processing to high temperature storage tank 8.
The effect of low-temperature storage tank 10 is: the energy-accumulating medium that stores low temperature, the energy-accumulating medium of low temperature is in the interior storage of low-temperature storage tank 10, be convenient to again be transported in heat exchange container 2 and carry out heat exchange, due to surperficial heat dissipation problem, also will carry out necessary insulation processing to low-temperature storage tank 10.
The effect of low temperature heat-storage medium circulating pump 9 is: the energy-accumulating medium of low temperature is transported to heat exchange container 2 and is warmed in low-temperature storage tank 10, then be transported in high temperature storage tank 8;
The effect of high-temperature heat-storage medium circulation pump 7 is: the energy-accumulating medium of high temperature is transported to heat exchange container 2 and is lowered the temperature in high temperature storage tank 8, then be transported in low-temperature storage tank 10;
The effect of control system is: the control system in the present invention is the flow of controlling heat-absorbing medium circulating pump group 5 according to the temperature of heat-absorbing medium, to realize with hot apparatus and process requirement.Meet the needs that utilize to greatest extent solar energy, to more save primary energy, really realize energy-saving and emission-reduction.
The present invention when sunshine is sufficient by day, carries out energy storage; At night or carry out heat release when sunshine is not enough.
During heat release, as shown in Figure 3, through high-temperature heat-storage medium circulation pump 7, the energy-accumulating medium being stored in high temperature storage tank is extracted and is transported in heat exchange container 2, be used for heating heat-absorbing medium, continue to providing heat energy with hot equipment 3.
Daytime, as shown in Figure 2, by discharge control valve 6, inlet control valve 15, the second control valve 12, the 3rd control valve 13, the 5th control valve 16, the 7th control valve 17, low temperature heat-storage medium circulating pump 9 and heat-absorbing medium circulating pump group 5 are opened, by the first control valve 11, the 4th control valve 14, the 6th control valve 1 and high-temperature heat-storage medium circulation pump 7 are closed, in the time zone of solar irradiation abundance, (be generally 9:00-15:00), solar energy heat collector 4 absorbs solar energy, direct irradiation of sunlight be heat energy by transform light energy by photothermal conversion device, the heat-absorbing medium that heating is flowed through in solar energy heat collector 4, heat-absorbing medium is transported to the some of heat-absorbing medium in heat exchange container through heat-absorbing medium circulating pump group 5, in heat exchange container 2, carry out heat exchange with energy-accumulating medium, energy-accumulating medium is heated to uniform temperature, store, another part is delivered directly to hot equipment 3, for with hot equipment 3 direct heatings, energy-accumulating medium is in low-temperature storage tank 10, by low temperature heat-storage medium circulating pump 9, energy-accumulating medium is transported in heat exchange container 2, absorb after the heat of heat-absorbing medium, flow in high temperature storage tank 8, store, so that recycling when evening or Intensity of the sunlight are low.
Evening, as shown in Figure 3, by the first control valve 11, the 4th control valve 14, the 6th control valve 1, the 7th control valve 17, high-temperature heat-storage medium circulation pump 7 and heat-absorbing medium circulating pump group 5 are opened, by discharge control valve 6, inlet control valve 15, the second control valve 12, the 3rd control valve 13, the 5th control valve 16 and low temperature heat-storage medium circulating pump 9 are closed, in the insufficient time zone of solar irradiation, (be generally second day 9:00 of 15:00-), be stored in the heat-storage medium in high temperature storage tank 8, by high-temperature heat-storage medium circulation pump 7, heat-storage medium is transported in heat exchange container 2, simultaneously, by heat-absorbing medium circulating pump group 5, heat-absorbing medium is also transported in heat exchange container 2, heat again heat-absorbing medium, after energy-accumulating medium release heat, flow in low-temperature storage tank 10, after heat-absorbing medium is heated, be with hot equipment 3 heat supplies again.Realize the continuity with hot equipment 3 heat supplies, to meet, serialization is produced and life requirement.
Stored energy capacitance of the present invention is by determining with the actual power demand of hot equipment and storage time.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. a solar energy storage system, it is characterized in that: it comprises the 6th control valve (1), control system, heat exchange container (2), high temperature storage tank (8) and low-temperature storage tank (10) and with the solar energy heat collector (4) being connected with hot equipment (3), solar energy heat collector (4) has heat-absorbing medium import (4-2) and heat-absorbing medium outlet (4-1), on heat exchange container (2), there is the first heat-absorbing medium to head piece (2-1), the second heat-absorbing medium is to head piece (2-2), the first heat-storage medium to head piece (2-3) and the second heat-storage medium to head piece (2-4), the heat-absorbing medium import (4-2) of solar energy heat collector (4) is connected to head piece (2-2) with the second heat-absorbing medium of heat exchange container (2) by heat-absorbing medium circulating pump group (5), the heat-absorbing medium outlet (4-1) of solar energy heat collector (4) is connected to head piece (2-1) with the first heat-absorbing medium of heat exchange container (2) by discharge control valve (6), the first heat-storage medium of heat exchange container (2) is connected with high temperature storage tank (8) by high-temperature heat-storage medium circulation pump (7) to head piece (2-3), the second heat-storage medium of heat exchange container (2) is connected with low-temperature storage tank (10) by low temperature heat-storage medium circulating pump (9) to head piece (2-4), the first heat-storage medium of heat exchange container (2) is to being connected with the first control valve (11) between head piece (2-3) and high-temperature heat-storage medium circulation pump (7), the second heat-storage medium of heat exchange container (2) is to being connected with the second control valve (12) between head piece (2-4) and low temperature heat-storage medium circulating pump (9), high temperature storage tank (8) and the first heat-storage medium are to being connected with the 3rd control valve (13) between head piece (2-3), low-temperature storage tank (10) and the second heat-storage medium are to being connected with the 4th control valve (14) between head piece (2-4), between described heat-absorbing medium circulating pump group (5) and the heat-absorbing medium import (4-2) of solar energy heat collector (4), be connected with inlet control valve (15), between described heat-absorbing medium circulating pump group (5) and heat exchange container (2), be connected with the 5th control valve (16), one end of the 6th control valve (1) is connected to the second heat-absorbing medium to head piece (2-2), the other end of the 6th control valve (1) is connected between inlet control valve (15) and heat-absorbing medium circulating pump group (5).
2. solar energy storage system according to claim 1, is characterized in that: described discharge control valve (6) and the first heat-absorbing medium of heat exchange container (2) are to being connected with the 7th control valve (17) between head piece (2-1).
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| CN201210433866.2A CN102889698B (en) | 2012-11-05 | 2012-11-05 | Solar energy storage system |
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| CN201210433866.2A CN102889698B (en) | 2012-11-05 | 2012-11-05 | Solar energy storage system |
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| CN103471263B (en) * | 2013-09-05 | 2016-06-22 | 张其明 | Solar energy heat-storage station |
| CN204187872U (en) * | 2014-05-22 | 2015-03-04 | 深圳市爱能森设备技术有限公司 | A kind of energy storage type solar hot-water boiler adopting Molten Salt Heat Transfer heat accumulation |
| CN104456987A (en) * | 2014-12-18 | 2015-03-25 | 东北大学设计研究院（有限公司） | Solar heat storing-releasing system |
| CN105318578A (en) * | 2015-02-07 | 2016-02-10 | 成都奥能普科技有限公司 | Solid particle block groove-type solar ejection driven heat-exchange and heat-transmission system |
| CN104864613A (en) * | 2015-05-29 | 2015-08-26 | 赵小峰 | Heat storage device |
| CN105004073B (en) * | 2015-08-03 | 2018-07-10 | 中国华能集团清洁能源技术研究院有限公司 | A kind of solar energy thermal-power-generating heat-collecting heat-storage system |
| CN105180475B (en) * | 2015-09-28 | 2017-04-26 | 东方电气集团东方锅炉股份有限公司 | Tower-type solar closed under-pressure heat absorption system and method |
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| JPS5895154A (en) * | 1981-12-02 | 1983-06-06 | Matsushita Electric Ind Co Ltd | Solar heat collecting device |
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| CN1731027A (en) * | 2005-08-12 | 2006-02-08 | 哈尔滨工业大学 | Seasonal solar energy heat storage system utilizing phase-change material |
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Address after: 213000 No. 18 venture Road, Xinbei District, Jiangsu, Changzhou Patentee after: Changzhou Energy Equipment Co.,Ltd. Address before: 213033 No. 18 Chuangye Road, Xinbei District, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU ENERGY ENGINEERING Co.,Ltd. |
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