CN201621023U - Concentrating solar extraction-condensing cogeneration device - Google Patents

Concentrating solar extraction-condensing cogeneration device Download PDF

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Publication number
CN201621023U
CN201621023U CN2009202953834U CN200920295383U CN201621023U CN 201621023 U CN201621023 U CN 201621023U CN 2009202953834 U CN2009202953834 U CN 2009202953834U CN 200920295383 U CN200920295383 U CN 200920295383U CN 201621023 U CN201621023 U CN 201621023U
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China
Prior art keywords
heat
solar energy
steam
heat collecting
solar
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Expired - Fee Related
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CN2009202953834U
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Chinese (zh)
Inventor
胡亚才
张良
王武军
俞自涛
倪煜
樊建人
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Zhejiang University ZJU
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Zhejiang University ZJU
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/46Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

Abstract

The utility model discloses a concentrating solar extraction-condensing cogeneration device. A solar saturated steam heat collection field is sequentially connected with a steam generator, a superheater, a steam turbine generating system air exhaust outlet and a heat output system; the steam turbine generating system is connected with a power transmission and transportation system; the steam turbine generating system dead steam outlet is sequentially connected with a condenser, a suction pump and the steam generator; the solar saturated steam heat collection field is respectively sequentially connected with an intermediate-temperature heat accumulator, the superheater and the steam generator; and a system is controlled by a control system. The system realizes heat electricity generating through steams with different grades generated by grading heat collection fields, lowers cost, and improves efficiency by steam extraction mode heat steam supplying requirements, and a grading heat accumulator and a heat controller realize steady supply of heat and ensure steady running of the system. The cogeneration device can realize high-efficient and low-cost commercial running of solar energy.

Description

The light-focusing solar extraction condensing type cogeneration device
Technical field
The utility model relates to helioplant, relates in particular to a kind of light-focusing solar extraction condensing type cogeneration device.
Background technique
Exhausted day by day along with conventional energy resources such as fossil energies, and the environmental pollution pressure that brings of burning fossil energy, Renewable Energy Development and clean energy resource have become the trend of global energy development.Solar energy is as a kind of reproducible clean energy resource, and its utilization has been subjected to paying close attention to widely.
Solar energy utilization at present mainly comprises solar energy-electricity, light-light and heat-three kinds of forms of chemistry.Solar electrical energy generation is divided into photovoltaic generation and hot generation technology again, and solar thermal utilization is low temperature utilization in the solar energy, i.e. solar water heater at present the most widely.Subject matters such as there is solar energy utilization rate low (11%-16% (slot type)) in business-like in the world at present solar heat power generation system, and system cost cost and cost of electricity-generating are very high, and return period is long.Industrial production is huge to the demand of hot steam simultaneously, and economic benefit is considerable, therefore directly utilizes steam turbine mesolow cylinder steam as hot product in solar power system, can effectively improve the solar energy utilization ratio of whole system, increases economic efficiency.
In the solar power system, the steam parameter of generation is high more, and generating efficiency is high more, but cost and technical costs are high more.In conjunction with the current state of the art of China, from many-sides such as economy, technology, the commercialization solar generator that design tallies with the national condition utilizes system, reduces cost of investment, increases economic efficiency, and has also proposed the very requirement of reality.
Summary of the invention
The purpose of this utility model overcomes the problems referred to above, and a kind of high efficiency, low cost light-focusing solar extraction condensing type cogeneration device is provided.
For achieving the above object, the utility model is by the following technical solutions:
The light-focusing solar extraction condensing type cogeneration device comprises the overheated heat collecting field of solar energy, heat regulation controller, steam generator, superheater, solar energy saturated vapour heat collecting field, suction pump, turbine generating system, heat output system, power transmission and transformation system, control system, condenser, high-temperature heat accumulation device and medium temperature regenerator device; The bleed outlet, heat output system of solar energy saturated vapour heat collecting field and steam generator, superheater, turbine generating system is connected successively, turbine generating system is connected with power transmission and transformation system, turbine generating system exhaust steam outlet is connected successively with condenser, suction pump, steam generator, and solar energy saturated vapour heat collecting field is connected successively with medium temperature regenerator device, steam generator; The overheated heat collecting field of solar energy is connected respectively with superheater, steam generator, and the overheated heat collecting field of solar energy is connected respectively with high-temperature heat accumulation device, superheater, steam generator; System is controlled by control system.
Heating agent in the overheated heat collecting field of described solar energy is high temperature heat conductive oil or fused salt, and the heating agent in the solar energy saturated vapour heat collecting field is water or nano-fluid.The solar energy light gathering and heat collecting mode that adopt in overheated heat collecting field of described solar energy and solar energy saturated vapour thermal-arrest place is slot type or butterfly.Described turbine generating system adopts the mode of drawing gas.
The utility model utilizes the cascaded utilization of energy principle, by the cogeneration of heat and power mode, has improved the utilization ratio of solar energy greatly.Compare with single solar heat power generation system, the solar energy utilization ratio will improve more than 30%.By adopting staged heat collecting fields, satisfying under the steam grade demand of different phase, can reduce cost of investment greatly, preresearch estimates construction cost reduces about 1/3.In the stable supply that guarantees heat, at the steam feature of different qualities, be respectively equipped with high temperature and medium temperature regenerator device, the heat regulation controller is housed between high-temperature heat accumulation device and steam generator simultaneously simultaneously, guarantee the more stabilizing effective adjusting of regulating system.System layout can combine with building such as factory building roof, realizes that solar energy and architecture-integral design.Can realize low cost, high efficiency operation, strong to process engineering adaptability, suitable commercialization moves on a large scale.
Description of drawings
Fig. 1 is a light-focusing solar extraction condensing type cogeneration device schematic representation;
Among the figure: the overheated heat collecting field 1 of solar energy, heat regulation controller 2, steam generator 3, superheater 4, solar energy saturated vapour heat collecting field 5, suction pump 6, turbine generating system 7, heat output system 8, power transmission and transformation system 9, control system 10, condenser 11, high-temperature heat accumulation device 12, medium temperature regenerator device 13.
Embodiment
As shown in Figure 1, the light-focusing solar extraction condensing type cogeneration device comprises the overheated heat collecting field 1 of solar energy, heat regulation controller 2, steam generator 3, superheater 4, solar energy saturated vapour heat collecting field 5, suction pump 6, turbine generating system 7, heat output system 8, power transmission and transformation system 9, control system 10, condenser 11, high-temperature heat accumulation device 12 and medium temperature regenerator device 13; The bleed outlet, heat output system 8 of solar energy saturated vapour heat collecting field 5 and steam generator 3, superheater 4, turbine generating system 7 is connected successively, turbine generating system 7 is connected with power transmission and transformation system 9, turbine generating system 7 exhaust steam outlets are connected successively with condenser 11, suction pump 6, steam generator 3, and solar energy saturated vapour heat collecting field 5 is connected successively with medium temperature regenerator device 13, steam generator 3; The overheated heat collecting field 1 of solar energy is connected respectively with superheater 4, steam generator 3, and the overheated heat collecting field 1 of solar energy is connected respectively with high-temperature heat accumulation device 12, superheater 4, steam generator 3; System is by control system 10 controls.
Heating agent in the overheated heat collecting field 1 of described solar energy is high temperature heat conductive oil or fused salt, and the heating agent in the solar energy saturated vapour heat collecting field 5 is water or nano-fluid.The solar energy light gathering and heat collecting mode that overheated heat collecting field 1 of described solar energy and solar energy saturated vapour heat collecting field 5 are adopted is slot type or butterfly.Described turbine generating system 7 adopts the mode of drawing gas.
The light-focusing solar extraction condensing type cogeneration device comprises solar energy hierarchical heat collecting field (overheated heat collecting field, saturated vapour heat collecting field), classification thermal accumulator (high-temperature heat accumulation device, the medium temperature regenerator device), the heat regulation controller, superheater, steam vaporizer, turbine generating system, the heat output system, automatic control system, power transmission and transformation system, condenser, suction pump.Solar irradiation is mapped to solar energy heat-collection field, overheated heat collecting field of solar energy and saturated vapour heat collecting field heat heating agent respectively and reach different temperatures, the overheated heat collecting field of solar energy links to each other with superheater, solar energy saturated vapour heat collecting field links to each other with steam generator, produce superheated vapor and saturated vapour respectively, steam generator links to each other with superheater, and superheater outlet superheated vapor enters turbine generating system and generates electricity, after power transmission and transformation system to mains supply.Steam turbine draws gas to provide through the heat output system by turbine generating system mesolow cylinder and pines for the high-temperature steam demand, realizes the cogeneration of heat and power target.Exhaust steam in steam turbine enters steam generator through condenser 11 coolings by suction pump.Simultaneity factor is connected with steam generator with superheater respectively with medium temperature regenerator device, heat regulation controller by the high-temperature heat accumulation device, realizes the steadily lasting supply of heat, guarantees the stable operation of power generation system.Control system realizes solar-tracking, and the integrated control of collecting system, power generation system, heating system etc. improves the automatic operating level.
Described employing solar energy hierarchical heat collecting field comprises overheated heat collecting field of solar energy and saturated vapour heat collecting field.Overheated heat collecting field links to each other with superheater, produces superheated vapor, the saturated vapour heat collecting field with and steam generator produce supersaturated steam, satisfy the demand of system's different phase steam.Adopt light collecting thermal-arrest, can adopt slot type or butterfly.Described heat regulation controller, the high-temperature heat accumulation device, the medium temperature regenerator device is realized stablizing and can regulate of superheater and steam generator steam flow, guarantees system's smooth running.Heating agent in the overheated heat collecting field of described solar energy is high temperature heat conductive oil or fused salt, and the heating agent in the saturated vapour heat collecting field is water, nano-fluid etc.The parameter of the import and export of water vapor can be optimized adjustment according to technology and economic condition in heating agent and heat exchanger, the steam turbine.Adopt the mode of drawing gas in the described turbine generating system,, realize cogeneration of heat and power simultaneously for hot user provides middle high-temperature steam.Turbine generating system adopts the steam turbine product of current maturation, does not need to develop once more.Described control system comprises the realization solar automatic tracking, and the integrated control of collecting system, power generation system, heating system etc. improves the automatic operating level.
The native system layout can combine with building such as factory building roof, realizes that solar energy and architecture-integral design.Native system is realized solar energy highly effective, commercialized running cheaply by the optimization of heat collecting field distribution and the optimization of thermoelectric ratio.

Claims (4)

1. a light-focusing solar extraction condensing type cogeneration device is characterized in that comprising the overheated heat collecting field of solar energy (1), heat regulation controller (2), steam generator (3), superheater (4), solar energy saturated vapour heat collecting field (5), suction pump (6), turbine generating system (7), heat output system (8), power transmission and transformation system (9), control system (10), condenser (11), high-temperature heat accumulation device (12) and medium temperature regenerator device (13); The bleed outlet, heat output system (8) of solar energy saturated vapour heat collecting field (5) and steam generator (3), superheater (4), turbine generating system (7) is connected successively, turbine generating system (7) is connected with power transmission and transformation system (9), turbine generating system (7) exhaust steam outlet is connected successively with condenser (11), suction pump (6), steam generator (3), and solar energy saturated vapour heat collecting field (5) is connected successively with medium temperature regenerator device (13), steam generator (3); The overheated heat collecting field of solar energy (1) is connected respectively with superheater (4), steam generator (3), and the overheated heat collecting field of solar energy (1) is connected respectively with high-temperature heat accumulation device (12), superheater (4), steam generator (3); System is controlled by control system (10).
2. a kind of light-focusing solar extraction condensing type cogeneration device according to claim 1, it is characterized in that the heating agent in the overheated heat collecting field of described solar energy (1) is high temperature heat conductive oil or fused salt, the heating agent in the solar energy saturated vapour heat collecting field (5) is water or nano-fluid.
3. solar thermoelectric coproduction device according to claim 1 is characterized in that the solar energy light gathering and heat collecting mode that overheated heat collecting field of described solar energy (1) and solar energy saturated vapour heat collecting field (5) are adopted is slot type or butterfly.
4. solar thermoelectric coproduction device according to claim 1 is characterized in that described turbine generating system (7) adopts the mode of drawing gas.
CN2009202953834U 2009-12-29 2009-12-29 Concentrating solar extraction-condensing cogeneration device Expired - Fee Related CN201621023U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102003696A (en) * 2010-11-17 2011-04-06 东方锅炉(集团)股份有限公司 Hierarchical cavity type solar heat absorber and heat exchange system
CN101761366B (en) * 2009-12-29 2013-04-17 浙江大学 Light-focusing solar extraction condensing type cogeneration system
ES2407458A1 (en) * 2013-02-20 2013-06-12 Sener Ingeniería Y Sistemas, S.A. Cogeneration method for electric and thermal energy production from thermosolar energy
CN103306919A (en) * 2013-06-06 2013-09-18 国电青松吐鲁番新能源有限公司 Trough-type solar thermal power generating system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101761366B (en) * 2009-12-29 2013-04-17 浙江大学 Light-focusing solar extraction condensing type cogeneration system
CN102003696A (en) * 2010-11-17 2011-04-06 东方锅炉(集团)股份有限公司 Hierarchical cavity type solar heat absorber and heat exchange system
ES2407458A1 (en) * 2013-02-20 2013-06-12 Sener Ingeniería Y Sistemas, S.A. Cogeneration method for electric and thermal energy production from thermosolar energy
CN103306919A (en) * 2013-06-06 2013-09-18 国电青松吐鲁番新能源有限公司 Trough-type solar thermal power generating system
CN103306919B (en) * 2013-06-06 2016-03-02 国电青松吐鲁番新能源有限公司 Solar groove type heat build-up electricity generation system

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