CN103047778A - Concentrated solar heat energy distributed energy comprehensive utilization system - Google Patents
Concentrated solar heat energy distributed energy comprehensive utilization system Download PDFInfo
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- CN103047778A CN103047778A CN2013100303527A CN201310030352A CN103047778A CN 103047778 A CN103047778 A CN 103047778A CN 2013100303527 A CN2013100303527 A CN 2013100303527A CN 201310030352 A CN201310030352 A CN 201310030352A CN 103047778 A CN103047778 A CN 103047778A
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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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
- Y02E10/44—Heat exchange systems
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
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Abstract
The invention belongs to the field of energy, relates to a distributed energy system, and in particular relates to a distributed energy system capable of taking solar energy as primary energy supply. The concentrated solar heat energy distributed energy comprehensive utilization system is mainly characterized by comprising a solar condensation and heat collection system used for supply energy for the system, wherein the solar energy is used as the primary energy supply; wherein the a heat accumulation system is connected with an oil-water heat exchanger by an oil medium pipeline; an oil pump is connected with the solar condensation and heat collection system; the input end of an auxiliary energy system is connected with the output end of the pump, and the output end of the auxiliary energy system is connected with the input end of the oil-water heat exchanger; the heat accumulation system is used for realizing the stable and continuous solar heat energy supply; the steam output end of the oil-water heat exchanger is connected with a steam-water heat exchanger and a softened water system by a steam-water medium pipeline; the softened water system is connected with the steam-water heat exchanger by a first water pump; the output end of a hot water end of the steam-water heat exchanger is connected with input of a refrigerating and/or heating system; and the input end of the hot water end of the steam-water heat exchanger is connected by a second water pump. The concentrated solar heat energy distributed energy comprehensive utilization system has the advantages that by adopting a condensation and heat collection way, high-quality heat energy can be obtained, and can be used for power generation and industrial process heating; and waste steam after the power generation can be used as a heat source of heating and refrigerating, so that the system has the advantage of energy cascade utilization.
Description
Technical field
The invention belongs to energy field, relate to distributed energy resource system, especially take the distributed energy resource system of solar thermal energy as the primary energy method of supplying.
Background technology
" distributed energy " (distributed energy sources) refers to be distributed in the energy comprehensive utilization system of user side, but independent operating, also can be incorporated into the power networks, it is the system that determines mode and capacity with resource, environmental benefit maximization, with user's various energy resources demand, and status of resource allocation carries out system combination optimization, and the novel energy system of the design of employing demand reply formula and modular arrangements is the distributing energy-provision way with respect to central energy supply.
The international distributed energy WADE of alliance is defined as distributed energy: be installed in the high efficiency thermoelectric cold supply system of user side, system can be near consumption place (or) generating, the efficient wasted energy that utilizes generating to produce--produce heat and electric; On-the-spot end renewable energy system comprises the heat recovery system that utilizes on-the-spot waste gas, used heat and unnecessary pressure reduction to generate electricity.
China's distributed energy is in evolution, there is different statements in distributed energy understanding, wherein main a kind of referring to is directly installed on user side with heat, electricity, cooling system with small-scale, low capacity, modularization, distributed mode, independently the system of heat outputting, electricity, cold energy.The energy comprises the various ways such as solar energy utilization, Wind Power Utilization, fuel cell and combustion gas heat, electricity, cold triple supply.In conjunction with present China energy demand present situation, distributed energy is to solve China's energy scarcity area energy difficulty, alleviate China's Severe Power Shortage situation, guarantee one of important channel of Implementing Sustainable Development, can alleviate environment, peak load regulation network and the long pressure of carrying apart from electric power, solve regenerative resource on-site elimination problem, can improve efficiency of energy utilization, optimize the using energy source structure.
Primary energy in the distributed energy resource system is mainly the fossil fuels such as natural gas, coal at present, be the 200810204142.4(applying date such as the patent No.: the power resources of system are in fossil fuels such as combustion gas, coals in patent 2008.12.5), except environmental pollution seriously, gas supply begins anxiety, especially winter north heating season, " gas is waste " appears in some areas.Energy supply in the part distributed energy resource system comes from wind energy and biomass energy etc. in addition, such as patent No. 200710098469.3(applying date 2007.4.18) patent in the distributed energy resource system of supply is disclosed take wind energy as primary energy; Such as patent No. 201110345197.9(applying date 2011.11.4) patent disclosure a kind of living beings distributed energy resource system.
NORTHWEST CHINA section area, especially western part, Gansu Province and Xinjiang of China, Qinghai, the regional solar energy resourceses such as Tibet, Ningxia, West Inner Mongolia are very abundant, and the Desertification Soil of the length and breadth of land is arranged simultaneously, are fit to very much the solar thermal energy technological development.Patent 201210209121.8(applying date 2012.06.19) a kind of distributed solar energy chp system is disclosed, system has adopted the vibration heat flow tube to the solar-energy photo-voltaic cell radiating and cooling, system has realized the electric heating alliance at the external hot-water supply of heat by utilizing the vibration heat flow tube to absorb in the photovoltaic cell supplying power for outside.Wind energy and photovoltaic have been introduced in the above-mentioned distributed energy resource system, realized in the distributed energy resource system non-fossil energy as the breakthrough of primary energy supply, but since the unstability of new forms of energy and wind energy, electric energy be difficult to storage property so that system can not stablize continuous service.
Optically focused solar thermal energy technology is a kind of mode of utilizing for solar energy that is different from solar-photovoltaic technology.Technical characterstic is first optically focused, recycling.The inventor discloses a kind of groove type solar condenser system in the patent No. 200920032819.0 and 201120180099.X.Optically focused can produce the high-quality solar energy of high radiation density and temperature, can produce high-quality thermal source by the optically focused solar thermal energy, can satisfy the northern area of China heat supply in winter demand, and the domestic hot-water is provided; Also can satisfy heat utilization demand in the most industry production process, or directly by heat energy power-generating.Can be at user's side directly independently heat outputting, electricity, cold energy, satisfy diversified distributed with can demand.
Summary of the invention
The object of the invention is to avoid the deficiencies in the prior art that a kind of optically focused solar thermal energy distributed energy utilization system is provided.High-quality optically focused solar thermal energy is combined by heat reservoir and distributed energy resource system, to solve the not high and unsettled problem of the utilization of new energy resources efficient such as solar energy that exists at present, make the astable new forms of energy such as solar energy realize the utilization of stable, efficient and environmental protection.
For achieving the above object, the technical scheme that the present invention takes is: a kind of optically focused solar thermal energy distributed energy utilization system, its main feature is to comprise that an energy supply of system is the solar energy light gathering and heat collecting system, connect heat reservoir, oil water heat exchange device, oil pump connection solar energy light gathering and heat collecting system by oily medium pipeline, the input of auxiliary energy system is connected to delivery side of pump, its output is connected with the input of oil water heat exchange device, realizes continual and steady solar thermal energy supply by heat reservoir; The steam output end of oil water heat exchange device connects vapor-water heat exchanger, water softening system by the carbonated drink medium pipeline, and water softening system is connected with vapor-water heat exchanger through the first water pump; The output of the hot water end of vapor-water heat exchanger connects refrigeration or/and the input of heating system, connects the input of the hot water end of vapor-water heat exchanger through the second water pump.
Described optically focused solar thermal energy distributed energy utilization system, the steam output end that also includes the oil water heat exchange device connects steam power machine or/and generator by the carbonated drink medium pipeline, steam power machine is or/and generator connects vapor-water heat exchanger, water softening system, and water softening system is connected with vapor-water heat exchanger through the first water pump.The light and heat collection system links to each other by heat-exchange system with electricity generation system, and power is provided, and the exhaust steam outlet of electricity generation system links to each other with refrigeration or heating system through heat-exchange system, and solar thermal energy is realized cascade utilization according to thermograde, reaches optimum energy consumption efficiency.
The optically focused mode of described solar energy light gathering and heat collecting system is that independent one or more modes in groove type solar light and heat collection, linear Fresnel light and heat collection or the dish formula light and heat collection make up.
Described heat reservoir is according to being divided into low temperature heat reservoir, middle temperature heat reservoir and high-temperature heat-storage system with the energy mode.
Described auxiliary energy system is natural gas heat conducting oil boiler or coal-burning boiler.
Described heat reservoir comprises heat-storage medium oil or salt.
Described oil water heat exchange device includes steam raising plant and steam superheating device.
Described steam power machine is screw power machine or steam turbine.
Owing to adopted such scheme, beneficial effect of the present invention:
1. owing to adopted the mode of light and heat collection in this distributed energy resource system, can access high-quality heat energy, can be used for generating or industrial technology with hot, exhaust steam after the generating can be used for the thermal source that heats and freeze, advantage with cascaded utilization of energy, the more important thing is that solar energy is converted into high-grade solar thermal energy directly to be utilized, and further improves the efficient of distributed energy resource system.
2. by heat reservoir, increased new forms of energy stable continuing in distributed energy resource system and supplied, realized that the primary energy supply is take new forms of energy as main in the system, having reduced natural gas and coal is the dependence of traditional fossil energy of master.
3. because system's primary energy supply take clean energy resource as main, adds the raising of efficiency of energy utilization again, greatly reduced CO
2, NOx, CO, SO
2Discharging Deng pollutant.
Description of drawings:
Fig. 1 is optically focused solar thermal energy distributed energy utilization system structure chart.
The specific embodiment
Below principle of the present invention and feature are described, institute only gives an actual example and to be used for explanation the present invention, is not be used to limiting scope of the present invention.
The present invention converges solar energy through the light and heat collection system, the heating heat transfer medium, through heat-exchange system, obtain the high-grade steam source and offer electricity generation system or industrial technology heat, generating or residual heat of reaction pass through heat-exchange system again, obtain low-grade heat energy and offer refrigeration or heating system, realize that the cascade utilization of heat energy is taken full advantage of.Simultaneously, the present invention has realized the continual and steady supply of solar energy by heat reservoir, has improved the proportion of new forms of energy primary energy supplies in distributed energy resource system, further reduce the dependence of distributed energy resource system to traditional fossil energy, ensured energy security.
Embodiment 1: a kind of optically focused solar thermal energy distributed energy utilization system, see Fig. 1, comprise that an energy supply of system is solar energy light gathering and heat collecting system 1, connect heat reservoir 2, oil water heat exchange device 3, oil pump 11 connection solar energy light gathering and heat collecting systems 1 by oily medium pipeline, the input of auxiliary energy system 4 is connected to the output of oil pump 11, its output is connected with the input of oil water heat exchange device 3, realizes continual and steady solar thermal energy supply by heat reservoir; The steam output end of oil water heat exchange device 3 connects vapor-water heat exchanger 6, water softening system 8 by the carbonated drink medium pipeline, and water softening system 8 is connected with vapor-water heat exchanger 6 through the first water pump 10; The output of the hot water end of vapor-water heat exchanger 6 connects refrigeration or/and the input of heating system 7, connects the input of the hot water end of vapor-water heat exchangers 6 through the second water pump 9.
When the institute's calorific requirement that heats in the winter time was larger, the steam that oil water heat exchange device 3 is produced directly entered into 6 li of vapor-water heat exchangers, satisfies the heating demand.
Embodiment 2: optically focused solar thermal energy distributed energy utilization system, the steam output end of oil water heat exchange device 3 connects steam power machine or/and generator 5 by the carbonated drink medium pipeline, steam power machine is or/and generator 5 connects vapor-water heat exchanger 6, water softening system 8, and water softening system 8 is connected with vapor-water heat exchanger 6 through the first water pump 10.
All the other structures are with embodiment 1.The light and heat collection system links to each other by heat-exchange system with electricity generation system, and power is provided, and the exhaust steam outlet of electricity generation system links to each other with refrigeration or heating system through heat-exchange system, and solar thermal energy is realized cascade utilization according to thermograde, reaches optimum energy consumption efficiency.
Embodiment 3: optically focused solar thermal energy distributed energy utilization system is by being provided with steam generator and steam superheater, natural gas heat conducting oil boiler 4, screw power machine/generating set 5, heating system 7 in linear Fresnel collecting system 1, molten salt heat storage system 2, the oil water heat exchange device 3, water softening system 8 forms.Wherein linear Fresnel collecting system 1, oil water heat exchange device 3, screw power machine/generating set 5, water softening system 7 can be combined the formation solar energy light heat generator.At solar irradiation preferably the time, collecting system 1 converges sunshine, and heating system heat transfer medium conduction oil, conduction oil are met the superheated steam of screw power machine parameter request by oil water heat exchange device 3, for generating set 5 provides power, realize continual generating.Exhaust steam temperature after 5 generatings of superheated steam pushing generator group is about 100 ℃, can obtain 90 ℃ of hot water by vapor-water heat exchanger 6, and in winter, this hot water can be used as the heating system thermal source.When solar irradiation can not satisfy the system heat sources needs, provide system required heat energy by natural gas heat conducting oil boiler 4.When weather irradiation better, the collected solar energy of linear Fresnel collecting system 1 has when more than needed with respect to the required thermal source of system, waste heat can be stored by molten salt heat storage system 2, provide thermal source for system when bad to evening or solar irradiation, realize continuing generating and heating.
Embodiment 4: see Fig. 1, optically focused solar thermal energy distributed energy utilization system is by groove type solar collecting system 1, molten salt heat storage system 2, oil water heat exchange device 3(steam generator and steam superheater), natural gas heat conducting oil boiler 4, steam turbine/generator group 5, refrigeration system 7, water softening system 8 forms.Wherein groove type solar collecting system 1, oil water heat exchange device 3, steam turbine/generator group 5, water softening system 8 can be combined the formation solar energy light heat generator.At solar irradiation preferably the time, collecting system 1 converges sunshine, and heating system heat transfer medium conduction oil, conduction oil are met the superheated steam of steam turbine parameter request by oil water heat exchange device 3, for generating set 5 provides power, realize continual generating.Exhaust steam temperature after 5 generatings of superheated steam pushing generator group is about 100 ℃, can obtain 90 ℃ of hot water by vapor-water heat exchanger 6, and in summer, this hot water can be used as the refrigeration system thermal source.When solar irradiation can not satisfy the system heat sources needs, provide system required heat energy by natural gas heat conducting oil boiler 4.When weather irradiation better, the collected solar energy of groove type solar collecting system 1 has when more than needed with respect to the required thermal source of system, waste heat can be stored by molten salt heat storage system 2, provide thermal source for system when bad to evening or solar irradiation, realize continuing generating and heating.
Embodiment 5: the optically focused mode of described solar energy light gathering and heat collecting system 1 is the combination of groove type solar light and heat collection, linear Fresnel light and heat collection and dish formula light and heat collection mode.All the other structures are with embodiment 1 or 2 or 3 or 4.
Embodiment 6: the optically focused mode of described solar energy light gathering and heat collecting system 1 is a kind of of groove type solar light and heat collection, linear Fresnel light and heat collection and dish formula light and heat collection mode or combination.By warm conduction oil heat reservoir 2 in the oily medium pipeline connection, all the other structures are with embodiment 1.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art should be within protection scope of the present invention for improvement and modification that the present invention makes according to announcement of the present invention.
Claims (8)
1. optically focused solar thermal energy distributed energy utilization system, it is characterized in that comprising that an energy supply of system is the solar energy light gathering and heat collecting system, connect heat reservoir, oil water heat exchange device, oil pump connection solar energy light gathering and heat collecting system by oily medium pipeline, the input of auxiliary energy system is connected to delivery side of pump, and its output is connected with the input of oil water heat exchange device; The steam output end of oil water heat exchange device connects vapor-water heat exchanger, water softening system by the carbonated drink medium pipeline, and water softening system is connected with vapor-water heat exchanger through the first water pump; The output of the hot water end of vapor-water heat exchanger connects refrigeration or/and the input of heating system, connects the input of the hot water end of vapor-water heat exchanger through the second water pump.
2. optically focused solar thermal energy distributed energy utilization system as claimed in claim 1, the steam output end that characterized by further comprising the oil water heat exchange device connects steam power machine or/and generator by the carbonated drink medium pipeline, steam power machine is or/and generator connects vapor-water heat exchanger, water softening system, and water softening system is connected with vapor-water heat exchanger through the first water pump.
3. optically focused solar thermal energy distributed energy utilization system as claimed in claim 1, the optically focused mode that it is characterized in that described solar energy light gathering and heat collecting system are that independent one or more modes in groove type solar light and heat collection, linear Fresnel light and heat collection or the dish formula light and heat collection make up.
4. optically focused solar thermal energy distributed energy utilization system as claimed in claim 1 is characterized in that described heat reservoir is according to being divided into low temperature heat reservoir, middle temperature heat reservoir and high-temperature heat-storage system with the energy mode.
5. optically focused solar thermal energy distributed energy utilization system as claimed in claim 1 is characterized in that described auxiliary energy system is natural gas heat conducting oil boiler or coal-burning boiler.
6. optically focused solar thermal energy distributed energy utilization system as claimed in claim 1 is characterized in that described heat reservoir comprises heat-storage medium oil or salt.
7. optically focused solar thermal energy distributed energy utilization system as claimed in claim 1 is characterized in that described oil water heat exchange device includes steam raising plant and steam superheating device.
8. optically focused solar thermal energy distributed energy utilization system as claimed in claim 2 is characterized in that described steam power machine is screw power machine or steam turbine.
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Cited By (9)
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| CN103742374A (en) * | 2013-12-27 | 2014-04-23 | 陕西大唐新能电力设计有限公司 | Concentrated solar heat distributed energy comprehensive utilization method |
| CN105698146A (en) * | 2016-03-24 | 2016-06-22 | 王顺滔 | Solar steam boiler |
| CN105782939A (en) * | 2016-04-25 | 2016-07-20 | 西安科弘厨房工程设备有限责任公司 | Solar thermal closed circulating steam heating system |
| CN106318416A (en) * | 2015-06-25 | 2017-01-11 | 中国电力工程顾问集团有限公司 | Baking device |
| CN106345222A (en) * | 2016-09-29 | 2017-01-25 | 天津大学 | Solar thermal assisted temperature swing adsorption carbon trapping system |
| CN106642734A (en) * | 2016-12-08 | 2017-05-10 | 沈阳建筑大学 | Water heater with energy jointly supplied by solar energy and natural gas |
| CN107654344A (en) * | 2017-10-19 | 2018-02-02 | 南京工程学院 | A kind of solar light-heat power-generation heat supply co-generation system |
| CN110218598A (en) * | 2019-06-11 | 2019-09-10 | 郑州轻工业学院 | A kind of solar energy-fuse salt accumulation of heat coupling curing range |
| CN115664339A (en) * | 2022-12-27 | 2023-01-31 | 山西省安装集团股份有限公司 | Solar heat collection and photovoltaic power generation system |
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| CN115664339A (en) * | 2022-12-27 | 2023-01-31 | 山西省安装集团股份有限公司 | Solar heat collection and photovoltaic power generation system |
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Application publication date: 20130417 |