CN101922754B - Solar cross-season heat-storage heating system - Google Patents
Solar cross-season heat-storage heating system Download PDFInfo
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- CN101922754B CN101922754B CN 201010262463 CN201010262463A CN101922754B CN 101922754 B CN101922754 B CN 101922754B CN 201010262463 CN201010262463 CN 201010262463 CN 201010262463 A CN201010262463 A CN 201010262463A CN 101922754 B CN101922754 B CN 101922754B
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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 relates to a solar cross-season heat-storage heating system which comprises a solar collector, a heating tail end, a layered water tank, an underground heat storage region and an auxiliary heat source, wherein a water supply pipe of the collector is connected with a high-temperature region of the layered water tank through a first electromagnetic valve, a first circulating water pump is arranged on a water return pipe of the collector, and the water return pipe of the collector is connected with a low-temperature region of the layered water tank; the low-temperature region of the layered water tank is connected with the underground heat storage region through a second circulating pump, and the water supply pipe of the collector and the low-temperature region of the layered water tank are provided with a communicating pipe and equipped with a second electromagnetic valve; the water supply pipe at the heating tail end is connected with the first electromagnetic valve, the high-temperature region of the layered water tank and the underground heat storage region through a third circulating water pump, and the water return pipe at the heating tail end is connected with the low-temperature region of the layered water tank; and the water supply pipe of the auxiliary heat source is connected with the high-temperature region of the layered water tank and the water return pipe of the auxiliary heat source through a fourth circulating water pump for constituting a heating season trough electric heat storage system. The solar cross-season heat-storage heating system uses solar energy as main energy input and can meet the 24-hour heating needs of a building by using cross-season heat storage/heat release for balancing the seasonal peak/trough distribution of the solar energy.
Description
Technical field
The present invention relates to the efficient technique of rainwater utilization field of regenerative resource, relate in particular to a kind of solar cross-season heat-storage heating system.
Background technology
Along with the raising of The development in society and economy and living standards of the people, the energy resource consumption total amount that is used for the heating air conditioning aspect is increasing.At present, northern heating energy consumption accounts for 25% of China's building total energy consumption, and the trend that increases is year by year arranged, and this will produce huge pressure to China's energy supply.China traditional heating system is made up of thermal source (like coal-burning boiler, combustion gas thermo oil boiler, thermalization power station etc.), heat supply network and indoor heating system.In long-time running, there is following problem: the one, China's heating energy consumption is too high; The 2nd, the use of high potential (like coal, combustion gas, oil, electricity etc.) is unreasonable; The 3rd, the thermal source of tradition heating is discharged a large amount of CO
2, SO
2With nuisances such as dust.Therefore, development of new environmental protection regenerative resource and the efficiency of energy utilization that improves heating system become and solve heating and energy saving and reduce discharging the key of problem approach.
Solar energy is extensive, the free of contamination clean energy resource of a kind of distribution, and the development of its heat utilization technology is the most ripe.Solar energy still is a kind of seasonal variety and the intermittent energy that changes, and satisfies the heating demand of building as utilizing hot efficiently switch technology and cross-season heat-storage technology, will improve heating system solar energy utilization ratio and economy largely.Therefore, feasible heating technology of solar cross-season heat-storage efficiently of development and equipment are significant applying of building field for the development and the solar energy of solar heating technology.
Summary of the invention
The technical problem that the present invention will solve provides a kind ofly to be imported as main energy sources with solar energy; Can improve the solar energy fraction; Distribute through the seasonal peak valley of cross-season heat-storage/exothermic equilibrium solar energy, to satisfy the solar cross-season heat-storage heating system of the round-the-clock heating demand of building.
The solar cross-season heat-storage heating system that the present invention relates to; Comprise solar thermal collector 1, heating terminal 4; Its special character is: also be provided with layering water tank 2, underground heat storage district 3 and auxiliary thermal source 5; Heat collector feed pipe 12 links to each other with layering water tank 2 high-temperature regions through first magnetic valve 10 that is equipped with on it, and heat collector return pipe 13 is provided with first water circulating pump 7 and links to each other with layering water tank 2 low-temperature spaces; Layering water tank 2 low-temperature spaces also link to each other with underground energy-accumulation district 3 through second circulating pump 6, and heat collector feed pipe 12 is established communicating pipe 20 and second magnetic valve 11 is housed with layering water tank 2 low-temperature spaces; The terminal feed pipe 16 that heats links to each other with underground energy-accumulation district 3 with first magnetic valve 10, layering water tank 2 high-temperature regions respectively through the 3rd water circulating pump 8, and the terminal return pipe 17 of said heating directly links to each other with layering water tank 2 low-temperature spaces; Auxiliary thermal source feed pipe 19 constitutes heating season low ebb electric heat storage systems through the return pipe 18 of the 4th water circulating pump 9 that which is provided with and layering water tank 2 high-temperature regions, auxiliary thermal source.
Above-mentioned solar cross-season heat-storage heating system, described underground energy-accumulation district 3 is made up of buried tube heat exchanger 301, the water knockout drum 14 and the water collector 15 that are connected with buried tube heat exchanger 301 two ends, the heat-storing material 302 that is filled in around the buried tube heat exchanger 301.
Above-mentioned solar cross-season heat-storage heating system, described layering water tank 2 inside are provided with deflector 201, through deflector 201 layering water tank 2 are divided into high-temperature region and low-temperature space.
Above-mentioned solar cross-season heat-storage heating system, described auxiliary thermal source 5 is an electric boiler.
Above-mentioned solar cross-season heat-storage heating system, described heat-storing material 302 are to be that gravel, water and the phase-change material of 5:4:1 or 4:3:1 or 6:5:1 constitutes by volume ratio.
This solar cross-season heat-storage heating system is made up of collecting system, hold over system, heating system, auxiliary thermal source system and the antifreeze circulatory system, and its core is underground energy-accumulation district and layering water tank, and the heat-storing material of layering water tank is a water.The present invention,, in conjunction with the underground energy-accumulation advantage and assists with the accumulation of heat of low ebb electricity and realizes all-weather solar heating from the actual heating conditions of demand of northern area according to solar energy energy-flux density and variation characteristics.Through optimal design and automatic operating conversion, realize that efficiently utilize the season of striding of solar energy.Heating season is adopted the direct heating of solar energy when solar energy is sufficient; Heating season is extracted the heat that non-heating season is stored in the underground energy-accumulation district when solar energy is not enough, can improve system's solar energy utilization ratio, and can assist the accumulation of heat of low ebb electricity to satisfy the heating demand; During non-heating season rich solar heat is stored in the underground energy-accumulation district, uses to satisfy solar cross-season.The present invention imports as main energy sources with solar energy, distributes through the seasonal peak valley of cross-season heat-storage/exothermic equilibrium solar energy, to satisfy the round-the-clock heating demand of building, compared with prior art also has following beneficial effect:
(1) can use solar energy to substitute traditional fossil fuel through this system provides thermal source as room heating, environmental protection is had positive role;
(2) use through solar cross-season, can improve solar energy utilization ratio (can reach more than 70%) to greatest extent, reach the purpose of energy-saving and emission-reduction;
(3) heat storage efficiency is high, heat exchange property is good, operation maintenance is simple, and application prospect is good.
Description of drawings
Fig. 1 is the sketch map of this solar cross-season heat-storage heating system;
Fig. 2 is an A-A profile among Fig. 1.
Among the figure: the 1-solar thermal collector; 2-layering water tank; 3-underground energy-accumulation district; The 301-buried tube heat exchanger; The 302-heat-storing material; 4-heats terminal; The 5-auxiliary thermal source; 6-second water circulating pump; 7-first water circulating pump; 8-the 3rd water circulating pump; 9-the 4th water circulating pump; 10-first magnetic valve; 11-second magnetic valve; 12-heat collector feed pipe; 13-heat collector return pipe; The 14-water knockout drum; The 15-water collector; The 16-terminal feed pipe that heats; The 17-terminal return pipe that heats; 18-auxiliary thermal source return pipe; 19-auxiliary thermal source feed pipe; 20-communicating pipe.
The specific embodiment
Through accompanying drawing and specific embodiment the present invention is further specified below.
As shown in the figure; This solar cross-season heat-storage heating system comprises solar thermal collector 1, layering water tank 2, underground heat storage district 3, heating terminal 4 and auxiliary thermal source 5, and described layering water tank 2 inside are provided with deflector 201 layering water tank 2 is divided into high-temperature region and low-temperature space.Described auxiliary thermal source 5 adopts electric boiler; Underground energy-accumulation district 3 by buried tube heat exchanger 301, the water knockout drum 14 that is connected buried tube heat exchanger 301 two ends and water collector 15, be filled in the heat-storing material 302 around the buried tube heat exchanger 301; Heat-storing material 302 can be gravel, water and the phase-change material formation of 5:4:1 (also can be 4:3:1 or 6:5:1) by volume ratio; The volume ratio that is gravel, water and phase-change material is 4:3:1～6:5:1, and described phase-change material can be selected paraffin, stearic acid etc. for use.In fact the selection of the combination of heat-storing material and phase-change material is not limited by present embodiment, is 75～85 ℃ as long as guarantee phase transition temperature.The phase transition temperature of phase-change material is 80 ℃ (also can be 75 ℃ or 85 ℃) in the present embodiment.Heat collector feed pipe 12 links to each other with layering water tank 2 high-temperature regions through first magnetic valve 10 that is equipped with on it, and heat collector return pipe 13 is provided with first water circulating pump 7 and links to each other with the low-temperature space of layering water tank 2; Layering water tank 2 low-temperature spaces also link to each other with the water knockout drum 14 in underground energy-accumulation district 3 through second circulating pump 6, and heat collector feed pipe 12 is established communicating pipe 20 and second magnetic valve 11 is housed with layering water tank 2 low-temperature spaces; The terminal feed pipe 16 that heats links to each other with the water collector 15 in first magnetic valve 10, layering water tank 2 high-temperature regions and underground energy-accumulation district 3 respectively through the 3rd water circulating pump 8, and the terminal return pipe 17 of described heating directly links to each other with layering water tank 2 low-temperature spaces; Auxiliary thermal source feed pipe 19 and the 4th water circulating pump 9, layering water tank 2 high-temperature regions, auxiliary thermal source return pipe 18 constitute heating season low ebb electric heat storage systems.
In this system, the main effect of solar thermal collector 1 is to collect the heat of solar energy and heat to flow through water wherein; The effect of layering water tank 2 is to store heat-collecting capacity and supplementary energy amount of stored heat and regulate supply and return water temperature; The effect in underground energy-accumulation district 3 is to store the rich heat that solar thermal collector is collected, and realizes that under the not good situation of heating season solar radiation striding season utilizes; The effect of heating terminal 4 is to the room heat to be provided; The effect of auxiliary thermal source 5 is that the accumulation of heat of low ebb electricity is to satisfy round-the-clock room heating demand; Be to improve system's utilization ratio and solar energy fraction, the opening and closing through magnetic valve 10～11 and water circulating pump 6～9 realize different hot water circuit.
The workflow of native system is following:
1, heating season direct heating operation.When solar thermal collector 1 was imported and exported the temperature difference >=5 ℃ and layering water tank 2 high-temperature region water temperature >=40 ℃, first magnetic valve 10, first water circulating pump 7 and the 3rd water circulating pump 8 were opened.Hot water is produced by solar thermal collector 1, returns solar thermal collector 1 behind the low-temperature space of, layering water tank 2 terminal 4 through first magnetic valve 10, the 3rd water circulating pump 8, heating, first water circulating pump 7, accomplishes a heating and circulates.When solar thermal collector 1 was imported and exported the temperature difference≤5 ℃ and layering water tank 2 high-temperature region water temperature>=40 ℃, the 3rd water circulating pump 8 was opened, and the high-temperature region of layering water tank 2 directly gives heating terminal 4 heating.
2, heating season intermittent heating operation.When solar thermal collector 1 was imported and exported the temperature difference≤5 ℃ and layering water tank 2 high-temperature region water temperature≤40 ℃, second water circulating pump 6, the 3rd water circulating pump 8 were opened.Heat terminal 4 backwater through second water circulating pump 6, by 3 heating of underground energy-accumulation district after the 3rd water circulating pump 8 to get into heating terminal 4, accomplishes a heating and circulates.
3, heating season low ebb electricity accumulation of heat.When the high low-temperature space temperature difference of layering water tank 2 >=5 ℃, the 4th water circulating pump 9 is opened.Auxiliary thermal source 5 is given the heating of the hot water in layering water tank 2 high-temperature regions.
4, antifreeze circulation of heating season.Second magnetic valve 11 and first water circulating pump 7 are opened.The water of layering water tank 2 low-temperature spaces flows back to layering water tank 2 behind first water circulating pump 7, solar thermal collector 1, second magnetic valve 11, accomplish an antifreeze circulation.
5, non-heating season accumulation of heat circulation.First magnetic valve 10, first water circulating pump 7 and second water circulating pump 6 are opened.Hot water is produced by solar thermal collector 1, flows back to solar thermal collector 1 behind flow through respectively first magnetic valve, 10 backs, layering water tank 2, first water circulating pump 7, with the water in the layering water tank 2 heat to; Second water circulating pump 6 draws water from the low-temperature space of layering water tank 2, and energy-accumulation material 302 heat releases behind underground energy-accumulation district 3 are heated water to flow back to the high-temperature region of layering water tank 2.
Claims (5)
1. solar cross-season heat-storage heating system; Comprise solar thermal collector (1), heating terminal (4); It is characterized in that: also be provided with layering water tank (2), underground heat storage district (3) and auxiliary thermal source (5); Heat collector feed pipe (12) links to each other with layering water tank (2) high-temperature region through first magnetic valve (10) that is equipped with on it, and heat collector return pipe (13) is provided with first water circulating pump (7) and links to each other with layering water tank (2) low-temperature space; Layering water tank (2) low-temperature space also links to each other with underground energy-accumulation district (3) through second circulating pump (6), and heat collector feed pipe (12) is established communicating pipe (20) and second magnetic valve (11) is housed with layering water tank (2) low-temperature space; The terminal feed pipe (16) that heats links to each other with underground energy-accumulation district (3) with first magnetic valve (10), layering water tank (2) high-temperature region respectively through the 3rd water circulating pump (8), and the terminal return pipe (17) that heats directly links to each other with layering water tank (2) low-temperature space; Auxiliary thermal source feed pipe (19) constitutes heating season low ebb electric heat storage system through the 4th water circulating pump (9) that which is provided with layering water tank (2) high-temperature region, auxiliary thermal source return pipe (18).
2. solar cross-season heat-storage heating system according to claim 1 is characterized in that: described underground energy-accumulation district (3) by buried tube heat exchanger (301), the water knockout drum (14) that is connected buried tube heat exchanger (301) two ends and water collector (15), be filled in buried tube heat exchanger (301) heat-storing material (302) on every side and form.
3. solar cross-season heat-storage heating system according to claim 1 is characterized in that: described layering water tank (2) inside is provided with deflector (201), through deflector (201) layering water tank (2) is divided into high-temperature region and low-temperature space.
4. solar cross-season heat-storage heating system according to claim 1 is characterized in that: described auxiliary thermal source (5) is an electric boiler.
5. solar cross-season heat-storage heating system according to claim 1 is characterized in that: described heat-storing material (302) is to be that gravel, water and the phase-change material of 5:4:1 or 4:3:1 or 6:5:1 constitutes by volume ratio.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010262463 CN101922754B (en) | 2010-08-25 | 2010-08-25 | Solar cross-season heat-storage heating system |
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| CN 201010262463 CN101922754B (en) | 2010-08-25 | 2010-08-25 | Solar cross-season heat-storage heating system |
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| CN101922754A CN101922754A (en) | 2010-12-22 |
| CN101922754B true CN101922754B (en) | 2012-10-03 |
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| CN104236129B (en) * | 2013-06-21 | 2018-06-08 | 中盈长江国际新能源投资有限公司 | The double-deck salt-free solar pond of cold, hot two-purpose and across season accumulation of energy cold and heat supply system |
| CN104121710A (en) * | 2014-08-05 | 2014-10-29 | 高占武 | Underground temperature storage system and method |
| CN105841222B (en) * | 2016-05-06 | 2018-08-14 | 中国科学院电工研究所 | A kind of solar energy heat distribution system based on across season water body heat accumulation |
| CN107101385B (en) * | 2017-05-16 | 2019-05-17 | 北京新钢精诚科技有限公司 | A kind of heat storage electric boiler and solar water heater combined apparatus and heat supply method |
| CN107420961B (en) * | 2017-06-22 | 2023-06-02 | 四季沐歌(洛阳)太阳能有限公司 | Solar heating system |
| CN115046239A (en) * | 2022-05-20 | 2022-09-13 | 湖南大学 | Solar energy stride season sand high temperature heat accumulation building heating system |
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| CN101055098A (en) * | 2006-11-21 | 2007-10-17 | 李鸿雁 | Solar energy heated, automated self-adjusting system for temperature |
| KR20100010429A (en) * | 2008-07-22 | 2010-02-01 | 권오석 | Hydroelectric power generation using waste water and waste heat and hot water supply and heating system for energy saving using solar heat |
| EP2331882B1 (en) * | 2008-10-06 | 2019-05-01 | Sunnovations Inc. | Adaptive self pumping solar hot water heating system with overheat protection |
| DE102008043291B4 (en) * | 2008-10-29 | 2012-09-13 | Iff Kollmannsberger Kg | Hot water preparation system and method for operating a hot water preparation system |
| CN201463074U (en) * | 2009-06-19 | 2010-05-12 | 上海理工大学 | Solar heat-storage heating device |
| CN101701732B (en) * | 2009-11-25 | 2012-02-15 | 中国建筑设计研究院 | Solar energy pebble heat storage heating system |
| CN201836970U (en) * | 2010-08-25 | 2011-05-18 | 锦州森博特新能源技术有限公司 | Solar seasonal heat storage and heating system |
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