CN102877980A - Phosgene complementation solar sterling power generating system - Google Patents
Phosgene complementation solar sterling power generating system Download PDFInfo
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- CN102877980A CN102877980A CN2012103431880A CN201210343188A CN102877980A CN 102877980 A CN102877980 A CN 102877980A CN 2012103431880 A CN2012103431880 A CN 2012103431880A CN 201210343188 A CN201210343188 A CN 201210343188A CN 102877980 A CN102877980 A CN 102877980A
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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
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention discloses a phosgene complementation solar sterling power generating system. The system comprises a fan, a heat regenerator, a light gathering and heat collecting system, a combustion chamber, a sterling engine and a control valve. Air is introduced into the heat regenerator for preheating through the fan, the light gathering and heat collecting system and the combustion chamber are used for heating the preheated air simultaneously or individually through the control valve according to outside illumination conditions, and high-temperature air is introduced into the hot end of the sterling engine and is subjected to heat exchange together with the hot end to drive the sterling engine to do work, so that a generator can be driven to generate power; and the high-temperature air which flows away from the hot end of the sterling engine can be introduced into the heat regenerator to ensure the recovery of waste heat and the preheating of the air, and then can be exhausted out of the system after being cooled. The phosgene complementation solar sterling power generating system has the advantages that the power can be continuously generated in a phosgene complementation mode to ensure that grid-connected operation of the system is facilitated compared with the operation of a system for generating the power by using single solar energy or wind energy and other new energy resources, so that impacts on power grids are reduced; and the system has an application prospect in distributed energy utilization.
Description
Technical field
The present invention relates to a kind of phosgene complementary solar Stirling heat generating system, have important application value in the distributed energy field.
Background technique
Forward-looking statement about world energy sources has been proposed in " BP 2030 world energy outlooks " of issue in 2011: to the year two thousand thirty, the market share of three kinds of fossil fuels with advolution to 26-27%; Following 20 years, all non-fossil fuels will surpass any other fossil fuel first to total contribution rate (36%) of energy consumption growth; Renewable energy sources accounts for 18% of energy consumption growth, its spreading speed at global energy markets will be similar to 20 century 70s and the eighties nuclear power appearance.
Since 20 century 70s produced energy crisis, global environmental pollution was on the rise, and adds the fast development of every field new technique, had started the new upsurge that solar energy utilizes.In renewable energy sources, that solar energy has is inexhaustible, nexhaustible, the superiority of environmental protection.In view of the above advantage of solar energy, rationally and effectively developing solar energy has great meaning.Simultaneously, Stirling engine efficiently is a significant advantage as the airtight reciprocation cycle reciprocating engine of a kind of external-burning type, and external-burning type is so that very low to the substantive requirements of form of external heat source, both can appropriate design external-burning device, make the discharge of poisonous waste amount that produces after its burning drop to minimum; Also can use the renewable energy sources such as biogas.So based on characteristics such as progressively ripe Stirling engine technology and high-efficiency environment friendlies, dish formula Stirling power generation system becomes the study hotspot in solar light-heat power-generation field.Over nearly 20 years, it has obtained developing rapidly at western developed country, and the capacity of cellular system develops into 50kW from 2kW.In the photothermal power generation field, dish formula system is because it has higher optical efficiency, lower tracking error, and adopted high efficiency Stirling-electric hybrid and have the highest generating efficiency, and the efficient that has realized has at present surpassed 30%.
Yet there is problem---the continous-stable of a reality in solar light-heat power-generation, and solar energy is inputted as primary energy, can not satisfy one day 24 hours without interruption.Continuity problem can solve by two kinds of methods, and the one, energy storage method, the 2nd, energy mix (phosgene is complementary) method.Compare still immature energy accumulating technique, take have fuel select multifarious Stirling thermal engine operating as the complementary energy mix technology of the phosgene on energy conversion basis then more feasible on present technical merit.In view of variation and the development of coordination human future and the contradiction between the energy crisis of present world energy sources structure, the complementary dish formula of development phosgene Stirling power generation system is significant.
Summary of the invention
The present invention proposes a kind of phosgene complementary solar Stirling heat generating system take the complementary Stirling power generation system of light (solar energy) and gas (rock gas, biogas, other low-BTU gass) as research object, take comprehensive utilization of energy as design principle, the advantage that had both kept the conversion of present solar energy Stirling engine high efficiency thermoelectric has taken into full account again the complementation utilization of renewable energy sources and fossil energy.
A kind of phosgene complementary solar of the present invention Stirling power generation system comprises blower fan, regenerator, light and heat collection system, firing chamber, Stirling engine and control valve, by-pass valve, gas control valve.
Wherein, blower fan links to each other by pipeline with the cold side of regenerator, by the driving blower fan fresh air is introduced and is carried out preheating in the regenerator.Regenerator connects light and heat collection system and firing chamber successively by pipeline, and the firing chamber links to each other with the hot junction of Stirling engine by pipeline.The supply of the air after the above-mentioned preheating is controlled by control valve, by-pass valve.Control valve is installed on the light and heat collection system inlet end pipeline, and by-pass valve is in parallel with the light and heat collection system by pipeline, forms preheated air and supplies with bypass; And gas control valve is used for controlling the air inflow of high-temperature fuel gas, is installed on the combustion chamber inlet duct road.The outlet of the hot junction of Stirling engine connects the hot side of regenerator by pipeline, the high-temperature exhaust air that makes the outlet of Stirling engine hot junction carries out heat exchange at the fresh air that regenerator and its cold side enter.
By said structure, in the situation of solar energy abundance, control valve is opened thus, and by-pass valve and gas control valve are all closed; The light and heat collection system assembles solar energy, and receives the heat that solar energy provides by the mode of convection current, finally realizes the heating of preheated air, and the air after the heating enters into Stirling engine with pipeline by the firing chamber and carries out exchange heat; When not existing in the excessively weak situation of solar radiation or solar radiation, control valve is closed, and by-pass valve and gas control valve are all opened; The firing chamber is introduced combustion gas by suction tude and is burnt, and realizes the heating of preheated air by high-temperature fuel gas, and the air after the heating enters into Stirling engine with pipeline and carries out exchange heat; Abundance but light and heat collection system still can not satisfy specified Stirling engine hot junction when requiring to the heating of preheated air when solar energy, then control valve and gas control valve are all opened, by-pass valve cuts out, start simultaneously light and heat collection system and firing chamber, to the preheated air heating, the air after the heating enters into Stirling engine with pipeline and carries out exchange heat successively.
The invention has the advantages that:
1, phosgene complementary solar Stirling power generation system of the present invention, can realize light (solar energy)---the continuity generating that gas (rock gas, biogas and other low-BTU gass) is complementary, making the generations of electricity by new energy such as its more single solar energy or wind energy more be conducive to system realizes being incorporated into the power networks, thereby reduce the impact to electrical network, in the distributed energy utilization, have application prospect;
2, phosgene complementary solar Stirling power generation system of the present invention, adopt dish formula light and heat collection system and Stirling engine, so that system not only can utilize multiple outer thermal source---the especially various lower calorific value thermals source that are conducive to environmental contamination reduction, and the complete machine generating efficiency of system also is improved, and is a kind of power generation system of more efficient cleaning;
3, phosgene complementary solar Stirling power generation system of the present invention, the design that firing chamber and collecting system are relatively independent is so that system is simple, integrated design the present invention will reduce the eclipsing loss of focusing system effectively compared to the adsorber of firing chamber and collecting system, thereby be conducive to ensure that efficient photo-thermal transforms;
4, phosgene complementary solar Stirling power generation system of the present invention has designed the preheated air of dish formula light and heat collection system and has supplied with bypass so that the fluid resistance losses of preheated air under different operating conditionss is more rational;
5, phosgene complementary solar Stirling power generation system of the present invention has designed the high-temperature exhaust air loss problem that powerful regenerator is brought to solve Stirling engine warm end wall surface temperature requirement (600 ~ 800 ℃), will be conducive to improve system's complete machine thermal efficiency.
Description of drawings
Fig. 1 phosgene complementary solar Stirling power generation system structure block diagram.
Among the figure:
1-blower fan 2-regenerator 3-light and heat collection system 4-firing chamber
5-Stirling engine 6-generator 7-control valve 8-by-pass valve
The 9-gas control valve
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
A kind of phosgene complementary solar of the present invention Stirling power generation system as shown in Figure 1, comprises blower fan 1, regenerator 2, light and heat collection system 3, firing chamber 4, Stirling engine 5 and control valve 7, by-pass valve 8, gas control valve 9.Wherein, blower fan 1 links to each other by pipeline with the cold side of regenerator 2, by driving blower fan 1 fresh air is introduced and is carried out preheating in the regenerator 2.Regenerator 2 connects the light and heat collection system 3 and firing chamber 4 of dish formula successively by pipeline, firing chamber 4 links to each other by the hot junction of pipeline with Stirling engine 5.The supply of the air after the above-mentioned preheating is controlled by control valve 7, by-pass valve 8, and control valve 7 is installed on the light and heat collection system 3 inlet end pipelines, and by-pass valve 8 is in parallel with light and heat collection system 3 by pipeline, forms preheated air and supplies with bypass.And gas control valve is used for controlling the air inflow of high-temperature fuel gas, is installed on the combustion chamber inlet duct road.
Be heated to specified temperature by light and heat collection system 3 with the 4 pairs of preheated airs in firing chamber, be divided into three kinds of operating modes, be respectively:
Operating mode one: in the situation of solar energy abundance, 3 work of light and heat collection system, and do not work in firing chamber 4, realize thus the heating of preheated air by light and heat collection system 3, and be specially: control valve 7 is opened, and by-pass valve 8 and gas control valve 9 are all closed; 3 pairs of solar energy of light and heat collection system (solar radiation energy) are assembled (being realized by condenser in the light and heat collection system), this moment, light and heat collection system 3 received the heat (being realized by heat collector in the light and heat collection system) that solar energy provides by the mode of convection current, the final heating that realizes preheated air, the air after the heating enters into Stirling engine 5 with pipeline by firing chamber 4;
Operating mode two: in the situation that does not have solar radiation (night) or solar radiation excessively weak (rainy weather), at this moment, firing chamber 4 work, and light and heat collection system 3 does not work, and this moment, preheated air was without light and heat collection system 3 but supply with bypass by preheated air and enter firing chamber 4 and realize preheated air is heated; Be specially: control valve 7 is closed, and by-pass valve 8 and gas control valve 9 are all opened; Firing chamber 4 is introduced combustion gas by suction tude and is burnt, and realizes the heating of preheated air by high-temperature fuel gas, and the air after the heating enters into Stirling engine 5 with pipeline;
Operating mode three: solar energy is sufficient, but when the heating of 3 pairs of preheated airs of light and heat collection system still can not be satisfied the requirement of specified Stirling engine 5 hot junctions, then can start simultaneously firing chamber 4 further heats air, this moment, control valve 7 and gas control valve 9 were all opened, by-pass valve 8 cuts out, the two is in parallel working state to make light and heat collection system 3 and firing chamber 4, thus by failing to satisfy the air of the requirement of Stirling engine hot-side temperature or specified generated output requirement after 3 heating of light and heat collection system, to enter into firing chamber 4, carry out the afterburning heating by firing chamber 4 interior high-temperature fuel gas, meet the requirements of air temperature.
Enter the hot air in Stirling engine 5 hot junctions and the hot junction heating pipe of Stirling engine 5 and carry out exchange heat, and be mechanical energy with thermal power transfer, drive the generator 6 that links to each other with Stirling engine and export electric energy.
The hot side that among the present invention the hot junction outlet of Stirling engine 5 is connected regenerator 2 by pipeline, the high-temperature exhaust air of Stirling engine 5 hot junctions outlet carries out heat exchange at the fresh air that regenerator 2 and its cold side enter, not only so that the fresh air that enters obtains preheating, also so that being reduced to lower temperature (about 50 ℃), high-temperature exhaust air (about 800 ℃) discharges again system, thereby realize heat recovery and be unlikely to because of high-temperature exhaust air system being caused a large amount of thermal loss, be conducive to improve system thermal efficiency.
By said structure, as thermal source, that can realize switching between the continuity generating of solar energy and each operating mode is simple and convenient with solar energy and rock gas (or biogas, other low-BTU gass); And take comprehensive utilization of energy as design principle, both kept the advantage of present solar energy Stirling engine high efficiency thermoelectric conversion, taken into full account again the complementation utilization of renewable energy sources and fossil energy.Simultaneously, the relatively independent design of firing chamber 4 and light and heat collection system 3 is so that system is simple among the present invention, 4 reduce the eclipsing loss of light and heat collection system 3 effectively with integrated design the present invention of adsorber of light and heat collection system 3 compared to the firing chamber, thereby be conducive to ensure that efficient photo-thermal transforms, and can reduce the load-bearing of light and heat collection system 3 supporting structures, guaranteed the safe and stable operation of light and heat collection system 3.In particular, the design of preheated air supply bypass has not only made things convenient for the switching of different operating modes in the system, also so that system operates under the lower flow resistance loss environment continuously, is conducive to reduce the input of power of fan and the raising of system effectiveness.In addition, the heat recovery design of regenerator will solve the high-temperature exhaust air loss problem that Stirling engine warm end wall surface temperature requires (600 ~ 800 ℃) to bring effectively, in fact the exhaust loss meeting seriously influences system's overall efficiency, adopt powerful regenerator will effectively reduce exhaust loss, thereby improve system's overall efficiency.
Claims (3)
1. a phosgene complementary solar Stirling power generation system is characterized in that: comprise blower fan, regenerator, light and heat collection system, firing chamber, Stirling engine and control valve, by-pass valve, gas control valve;
Wherein, blower fan links to each other by pipeline with the cold side of regenerator, by the driving blower fan fresh air is introduced and is carried out preheating in the regenerator; Regenerator connects light and heat collection system and firing chamber successively by pipeline, and the firing chamber links to each other with the hot junction of Stirling engine by pipeline; The supply of the air after the above-mentioned preheating is controlled by control valve, by-pass valve, and control valve is installed on the light and heat collection system inlet end pipeline, and by-pass valve is in parallel with the light and heat collection system by pipeline, forms preheated air and supplies with bypass; And gas control valve is used for controlling the air inflow of combustion gas, is installed on the combustion chamber inlet duct road; The outlet of the hot junction of Stirling engine connects the hot side of regenerator by pipeline, the high-temperature exhaust air that makes the outlet of Stirling engine hot junction carries out heat exchange at the fresh air that regenerator and its cold side enter.
2. a kind of phosgene complementary solar Stirling power generation system as claimed in claim 1 is characterized in that: described light and heat collection system is the dish formula.
3. a kind of phosgene complementary solar Stirling power generation system as claimed in claim 1 is characterized in that:
In the situation of solar energy abundance, the light and heat collection system works, and do not work in the firing chamber, system heats preheated air by light and heat collection;
When not existing in the excessively weak situation of solar radiation or solar radiation, at this moment, firing chamber work, and the light and heat collection system does not work, and by high-temperature fuel gas preheated air is heated;
When solar energy is sufficient, but the light and heat collection system can not satisfy in the situation that specified Stirling engine hot junction requires the heating of preheated air, and all working in light and heat collection system and firing chamber, successively preheated air is heated.
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Cited By (12)
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| CN103818978A (en) * | 2014-03-03 | 2014-05-28 | 孔令斌 | High-temperature gas cooled reactor nuclear electric power generation and sea water desalination device |
| CN104033269A (en) * | 2014-06-26 | 2014-09-10 | 赵铭 | Biomass-burning power generation device |
| CN104089408A (en) * | 2014-07-01 | 2014-10-08 | 福建工程学院 | Solar heat absorber with afterburning device |
| CN105240228A (en) * | 2015-09-22 | 2016-01-13 | 宁波华斯特林电机制造有限公司 | Solar Stirling power generation device |
| CN106089612A (en) * | 2016-08-08 | 2016-11-09 | 浙江大学 | Rotating jet flow device, Stirling engine and the operation method of a kind of characteristic absorption spectrum |
| EP3372832A1 (en) | 2017-03-09 | 2018-09-12 | Ripasso Energy AB | Hybrid solar powered stirling engine |
| EP3372831A1 (en) | 2017-03-09 | 2018-09-12 | Ripasso Energy AB | Hybrid solar powered stirling engine |
| EP3372833A1 (en) | 2017-03-09 | 2018-09-12 | Ripasso Energy AB | Hybrid solar powered stirling engine |
| CN109404161A (en) * | 2018-12-29 | 2019-03-01 | 杭州温斯特新能源科技有限公司 | A kind of integrated form Stirling thermal engine operating heat dump structure |
| CN110671271A (en) * | 2018-07-02 | 2020-01-10 | 赫普科技发展（北京）有限公司 | Complementary coupling power generation system and method |
| CN111256199A (en) * | 2020-01-19 | 2020-06-09 | 长春工业大学 | Energy-saving intelligent heating system |
| CN113686028A (en) * | 2020-05-19 | 2021-11-23 | 郑金祥 | Heat engine device and double-heat-source solar heat collector thereof |
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| CN103818978A (en) * | 2014-03-03 | 2014-05-28 | 孔令斌 | High-temperature gas cooled reactor nuclear electric power generation and sea water desalination device |
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| CN104033269A (en) * | 2014-06-26 | 2014-09-10 | 赵铭 | Biomass-burning power generation device |
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| CN106089612A (en) * | 2016-08-08 | 2016-11-09 | 浙江大学 | Rotating jet flow device, Stirling engine and the operation method of a kind of characteristic absorption spectrum |
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| EP3372831A1 (en) | 2017-03-09 | 2018-09-12 | Ripasso Energy AB | Hybrid solar powered stirling engine |
| EP3372832A1 (en) | 2017-03-09 | 2018-09-12 | Ripasso Energy AB | Hybrid solar powered stirling engine |
| EP3372833A1 (en) | 2017-03-09 | 2018-09-12 | Ripasso Energy AB | Hybrid solar powered stirling engine |
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| WO2018162402A1 (en) | 2017-03-09 | 2018-09-13 | Ripasso Energy Ab | Hybrid solar powered stirling engine |
| CN110671271A (en) * | 2018-07-02 | 2020-01-10 | 赫普科技发展（北京）有限公司 | Complementary coupling power generation system and method |
| CN109404161A (en) * | 2018-12-29 | 2019-03-01 | 杭州温斯特新能源科技有限公司 | A kind of integrated form Stirling thermal engine operating heat dump structure |
| CN111256199A (en) * | 2020-01-19 | 2020-06-09 | 长春工业大学 | Energy-saving intelligent heating system |
| CN111256199B (en) * | 2020-01-19 | 2021-05-07 | 长春工业大学 | Energy-saving intelligent heating system |
| CN113686028A (en) * | 2020-05-19 | 2021-11-23 | 郑金祥 | Heat engine device and double-heat-source solar heat collector thereof |
| CN113686028B (en) * | 2020-05-19 | 2024-06-11 | 郑金祥 | Double-heat source solar heat engine device |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130116 |