CN102072117B - Building curtain wall type solar thermal power generation system - Google Patents

Building curtain wall type solar thermal power generation system Download PDF

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Publication number
CN102072117B
CN102072117B CN2011100205563A CN201110020556A CN102072117B CN 102072117 B CN102072117 B CN 102072117B CN 2011100205563 A CN2011100205563 A CN 2011100205563A CN 201110020556 A CN201110020556 A CN 201110020556A CN 102072117 B CN102072117 B CN 102072117B
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China
Prior art keywords
curtain wall
insulated container
power generation
heat collecting
thermal power
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Expired - Fee Related
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CN2011100205563A
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Chinese (zh)
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CN102072117A (en
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黄德中
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University of Shaoxing
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University of Shaoxing
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention discloses a building curtain wall type solar thermal power generation system, which comprises a heliostat system, a generator, a thermal engine, a curtain wall type condenser and a solar receiving converter. The heliostat system is fixedly arranged on the back surface of a building curtain wall; the curtain wall type condenser is spliced by a plurality of reflecting plates; each reflecting plate is detachably arranged on a bracket of the heliostat system; the solar receiving converter comprises an enclosed insulated container; the lower part and the top of the insulated container are provided with a liquid inlet pipe and a steam outlet pipe respectively; a plurality of collector tubes are vertically arranged on one side of the insulated container; a lower port and an upper port of each collector tube are communicated with the bottom and the top of an accommodating cavity of the insulated container respectively; and condensing parabolic reflectors condensing the collector tubes are arranged at the periphery of the collector tubes. The system can effectively utilize solar energy projected to glass curtain walls of high-rise commercial buildings to generate power, has no exhaust emission, and eliminates negative impacts of reflecting glass curtain walls on humans.

Description

Building curtain wall formula solar thermal power generation system
Technical field
The present invention relates to solar thermal power generation system, especially a kind of building curtain wall formula solar thermal power generation system.
Background technique
At present, oil, coal reserves are limited, and rise in price is the CO that fuel combustion produces with oil coal 2, SO 2Environment is produced very big harm, danger utmost point human existence.Utilizing solar electrical energy generation, do not have toxic emission, is 21 century energy development direction.
The high rise multi-rise commercial building curtain walls that adopt more.The cladding glass face is not utilized, especially in summer, and the reflective life that influences the people that glass curtain wall produces.How utilizing the solar energy that projects on the high rise multi-rise commercial building glass curtain wall to generate electricity, reduce the reflective harmful effect to the people of glass curtain wall, is a problem very with practical value, as to have development potentiality and application prospect.
Summary of the invention
The objective of the invention is to: a kind of building curtain wall formula solar thermal power generation system is provided, can effectively utilizes the solar electrical energy generation that projects on the high rise multi-rise commercial building glass curtain wall, do not have toxic emission, eliminate the reflective harmful effect of glass curtain wall the people.
For achieving the above object, the present invention can take following technical proposals:
A kind of building curtain wall formula of the present invention solar thermal power generation system, comprise the heliostat system, generator, and be used to drive the heat engine of described generator, also comprise curtain wall formula condenser, the solar energy receiving converter that is used to receive the sunlight of described curtain wall formula condenser reflection and drives described heat engine; Described heliostat system is fixedly arranged on the curtain wall back side of building; Described curtain wall formula condenser is spliced to form by the polylith reflecting plate, and every described reflecting plate is dismountable to be installed on the support of described heliostat system; Described solar energy receiving converter comprises the airtight thermally insulated container that is used for splendid attire heat-carrying working medium, in the bottom of described thermally insulated container with the top is respectively equipped with liquid inlet pipe and steam goes out pipe, side at described thermally insulated container vertically is provided with a plurality of heat collecting pipes, the lower end mouth of described heat collecting pipe and upper end-hole are communicated with the cavity volume bottom and the cavity volume top of described thermally insulated container respectively, are provided with the optically focused parabolic reflector to its optically focused around described heat collecting pipe.
Described optically focused parabolic reflector is made of the glass reflector of steel plate and steel plate inboard, this glass reflector is a four-layer structure, bottom is the glass basis of deposition mirror, silver-plated formation reflecting layer on the glass basis, copper facing is configured for protecting the transition layer in this reflecting layer on the described reflecting layer, and japanning topmost constitutes protective film; A plurality of described heat collecting pipes are high pressure dual-layer vacuum glass heat collecting pipe, are set up in parallel.
Splicing place of the described reflecting plate of each piece leaves the gap.
Owing to be provided with the curtain wall formula condenser (P) that is spliced to form by the polylith reflector that utilizes sun locating system location daylighting at the curtain wall back side of building, solar energy receiving converter (R) with being used to receive the sunlight of described curtain wall formula condenser (P) reflection and driving described heat engine (S) makes the present invention obtain following beneficial effect:
1, can effectively utilize the solar electrical energy generation that projects on the high rise multi-rise commercial building glass curtain wall, not have toxic emission.Be positioned at the ground solar energy receiving converter in building front and absorb by the next high heat flux radiation energy of curtain wall formula condenser reflection, and be translated into the high temperature heat of heat-carrying working medium, drive heat engine, this heat engine drives generator for electricity generation.The general gas of finishing after the work done is doubted through cold doubtful device is cold, utilizes pressure pump to push back thermally insulated container, finishes a work cycle.Heliostat system control condenser is realized the real-time tracking to the sun.
2, eliminate the reflective harmful effect of glass curtain wall to the people.The reflective harmful effect to the people of glass curtain wall is not only eliminated in directed daylighting of described reflecting plate and reflection, and the sunlight that can block the sweltering heat in summer is to indoor direct projection.Because reflecting plate adopts detachable mounting structure, when needing winter solar radiation indoor, can take off reflecting plate.
3, further, leave the gap in splicing place of the described reflecting plate of each piece, when using summer, can not influence the daylighting of the indoor appropriateness of building.
4, owing to adopted airtight thermally insulated container, side at described thermally insulated container vertically is provided with a plurality of heat collecting pipes, making heat-carrying working medium of the present invention to raise in the cavity volume internal cause temperature of described heat collecting pipe and thermally insulated container and to constitute atural beat circulates, make heat-carrying working medium constantly obtain heat energy, become the high temperature heat source that can be used; Optically focused parabolic reflector to its optically focused is set around described heat collecting pipe, makes thermal efficiency of the present invention improve greatly.
5, owing to the glass reflector of described optically focused parabolic reflector by steel plate and steel plate inboard constitutes, this glass reflector makes that for adopting described four-layer structure described optically focused parabolic reflector amount is light, and non-deformability is strong, and the reflectivity height is easy to clean; Copper facing is configured for protecting the transition layer in described reflecting layer; not only can be used to protect this reflecting layer; also reduce the internal stress between described reflecting layer and the described protective film simultaneously, improved the non-deformability of optically focused parabolic reflector, guaranteed the stable of thermal efficiency.
Description of drawings
Fig. 1 is the structural representation of building curtain wall formula solar thermal power generation system of the present invention.
Fig. 2 is the structural representation of the solar energy receiving converter of Fig. 1.
Embodiment
As depicted in figs. 1 and 2, a kind of building curtain wall formula of the present invention solar thermal power generation system, comprise the O of heliostat system, generator E, and be used to drive the heat engine S of described generator E, also comprise curtain wall formula condenser P, the solar energy receiving converter R that is used to receive the sunlight of described curtain wall formula condenser P reflection and drives described heat engine S; The described heliostat O of system is fixedly arranged on the curtain wall back side of building M; Described curtain wall formula condenser P is spliced to form by the polylith reflecting plate, and every described reflecting plate is installed on the support of the described heliostat O of system with buckle structure or bolt structure; Splicing place of the described reflecting plate of each piece leaves the gap; Described solar energy receiving converter R comprises the airtight thermally insulated container that is used for the splendid attire fused salt 5, in the bottom of described thermally insulated container 5 with the top is respectively equipped with liquid inlet pipe 4 and steam goes out pipe 3, side at described thermally insulated container 5 vertically is provided with a plurality of heat collecting pipes 2, the lower end mouth of described heat collecting pipe 2 and upper end-hole are communicated with the cavity volume bottom and the cavity volume top of described thermally insulated container 5 respectively, are provided with the optically focused parabolic reflector 1 to its optically focused around described heat collecting pipe 2.Described optically focused parabolic reflector 1 is made of the glass reflector of steel plate and steel plate inboard, this glass reflector is a four-layer structure, bottom is the glass basis of deposition mirror, silver-plated formation reflecting layer on the glass basis, copper facing is configured for protecting the transition layer in this reflecting layer on the described reflecting layer, and japanning topmost constitutes protective film; A plurality of described heat collecting pipes 2 are high pressure dual-layer vacuum glass heat collecting pipe, are set up in parallel.
Building curtain wall formula solar thermal power generation system heat build-up generating of the present invention may further comprise the steps:
Step 1: utilize pressure pump to pump into fused salt from described liquid inlet pipe 4 to thermally insulated container 5, the liquid level of described fused salt is higher than the lower end mouth of described heat collecting pipe 2, is lower than the upper end-hole of described heat collecting pipe 2;
Step 2: the hot spot direct irradiation that curtain wall formula condenser P focus on is formed makes heat collecting pipe 2 wall surface temperatures raise at described heat collecting pipe 2 outer walls with radiation mode; Heat transmits from the fused salt of described wall in heat collecting pipe 2 in the mode of heat conduction and convection current, and fused salt raises and the formation natural circulation at the heat collecting pipe 2 of described vertical setting and the cavity volume internal cause temperature of thermally insulated container 5, thereby make fused salt constantly obtain heat energy, become high temperature and high pressure steam and go out pipe 3 outflows from described steam;
Step 3: will go out to manage 3 hot steams that flow out from described steam and import motor by insulated piping, and promote the motor work done, motor drives generator for electricity generation;
Step 4: the general gas of finishing after the work done is doubted through cold doubtful device is cold, utilizes described pressure pump to push back thermally insulated container 5 from liquid inlet pipe 4, finishes a work cycle.Described temperature of molten salt 100～600 the degree between, pressure≤120atm; The solar energy density that described solar electrical energy generation energy gathering type natural circulation receiver can bear is 1000kW/m 2
Described fused salt, commonly used have carbonite, chloride, fluoride and nitrate, and wherein, the application of nitric acid fused salt in solar energy thermal-power-generating is comparatively extensive.Three kinds of representative mixed nitrate fused salts are respectively: NaNO 2, NaNO 3With the mixture of KN, Ca (NO 3) 2, NaNO 3And KNO 3Mixture, and the mixture of NaNO and KNO.
Heat-carrying working medium such as fused salt, water or freezing mixture can be applied to each technological scheme of the present invention respectively.
In each technological scheme of the present invention of using fused salt working medium, the preheater of fused salt working medium can also be set, be used to melt fused salt working medium.
In each technological scheme of the present invention of using fused salt working medium, fused salt working medium energy storage canister preferably is set, be used for when having sunlight, not generating electricity.

Claims (3)

1. building curtain wall formula solar thermal power generation system, comprise heliostat system (O), generator (E), and be used to drive the heat engine (S) of described generator (E), it is characterized in that: also comprise curtain wall formula condenser (P), the solar energy receiving converter (R) that is used to receive the sunlight of described curtain wall formula condenser (P) reflection and drives described heat engine (S);
Described heliostat system (O) is fixedly arranged on the curtain wall back side of building (M);
Described curtain wall formula condenser (P) is spliced to form by the polylith reflecting plate, and every described reflecting plate is dismountable to be installed on the support of described heliostat system (O);
Described solar energy receiving converter (R) comprises the airtight thermally insulated container that is used for splendid attire heat-carrying working medium (5), in the bottom of described thermally insulated container (5) with the top is respectively equipped with liquid inlet pipe (4) and steam goes out pipe (3), side at described thermally insulated container (5) vertically is provided with a plurality of heat collecting pipes (2), the lower end mouth of described heat collecting pipe (2) and upper end-hole are communicated with the cavity volume bottom and the cavity volume top of described thermally insulated container (5) respectively, are provided with the optically focused parabolic reflector (1) to its optically focused around described heat collecting pipe (2).
2. building curtain wall formula solar thermal power generation system according to claim 1, it is characterized in that: described optically focused parabolic reflector (1) is made of the glass reflector of steel plate and steel plate inboard, this glass reflector is a four-layer structure, bottom is the glass basis of deposition mirror, silver-plated formation reflecting layer on the glass basis, copper facing is configured for protecting the transition layer in this reflecting layer on the described reflecting layer, and japanning topmost constitutes protective film; A plurality of described heat collecting pipes (2) are high pressure dual-layer vacuum glass heat collecting pipe, are set up in parallel.
3. building curtain wall formula solar thermal power generation system according to claim 1 and 2 is characterized in that: splicing place of the described reflecting plate of each piece leaves the gap.
CN2011100205563A 2011-01-18 2011-01-18 Building curtain wall type solar thermal power generation system Expired - Fee Related CN102072117B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102445007A (en) * 2011-12-06 2012-05-09 上海电力学院 Hot water system based on solar energy and building integration
CN102588232A (en) * 2012-03-20 2012-07-18 绍兴文理学院 Power generation system of solar eccentric rotor engine
CN106065675B (en) * 2016-06-17 2018-09-18 北京理工大学 A kind of full passive type solar energy heating wall of double heat pipes cycles of micro- optically focused

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101008194A (en) * 2006-01-24 2007-08-01 张端桥 Solar energy glass curtain wall
CN101067315A (en) * 2007-05-30 2007-11-07 肖文昭 Solar energy construction material and construction integrated solar energy utilization
CN101915224A (en) * 2010-08-06 2010-12-15 绍兴文理学院 Tower type solar energy circulating heat power generating system
CN201991714U (en) * 2011-01-18 2011-09-28 绍兴文理学院 Building curtain wall type solar thermal power generation system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101008194A (en) * 2006-01-24 2007-08-01 张端桥 Solar energy glass curtain wall
CN101067315A (en) * 2007-05-30 2007-11-07 肖文昭 Solar energy construction material and construction integrated solar energy utilization
CN101915224A (en) * 2010-08-06 2010-12-15 绍兴文理学院 Tower type solar energy circulating heat power generating system
CN201991714U (en) * 2011-01-18 2011-09-28 绍兴文理学院 Building curtain wall type solar thermal power generation system

Non-Patent Citations (1)

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Title
黄德中，沈吉宝.建筑节能技术综述.《太阳能学报》.2007,第28卷(第6期), *

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