CN1811297A - Two-stage reflecting and focusing heat accumulator - Google Patents

Two-stage reflecting and focusing heat accumulator Download PDF

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Publication number
CN1811297A
CN1811297A CNA200610038388XA CN200610038388A CN1811297A CN 1811297 A CN1811297 A CN 1811297A CN A200610038388X A CNA200610038388X A CN A200610038388XA CN 200610038388 A CN200610038388 A CN 200610038388A CN 1811297 A CN1811297 A CN 1811297A
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CN
China
Prior art keywords
fixed
converging mirror
heat accumulator
focusing
focus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA200610038388XA
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Chinese (zh)
Inventor
王军
张耀明
刘德有
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Hohai University HHU
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Hohai University HHU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hohai University HHU filed Critical Hohai University HHU
Priority to CNA200610038388XA priority Critical patent/CN1811297A/en
Publication of CN1811297A publication Critical patent/CN1811297A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/79Arrangements for concentrating solar-rays for solar heat collectors with reflectors with spaced and opposed interacting reflective surfaces
    • 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

Abstract

The two-stage reflecting and focusing heat accumulator for tank type solar heat generating system has a primary paraboloidal converging mirror to reflect and focus sunlight and a secondary composite paraboloidal converging mirror for further reflecting to focus the sunlight onto the heat collecting pipe. Structurally, the two-stage reflecting and focusing heat accumulator has the secondary converging mirror fixed by means of one rack onto the focus line of the primary paraboloidal converging mirror and the heat collecting pipe fixed by means of one other rack onto the focus line of the secondary converging mirror. The present invention has the advantages of high sunlight focusing ratio, simple structure, low cost and being suitable for industrial production.

Description

Two-stage reflecting and focusing heat accumulator
Technical field
What the present invention relates to is two-stage reflecting and focusing heat accumulator, is in the trough type solar power generation system, the light of parabolic concentrator reflect focalization, after the secondary composite parabolic concentrator reflects once more, focus on the thermal-collecting tube, the heating intraductal working medium belongs to application of solar.
Background technology
Concentrating collector in the trough type solar power generation system generally adopt parabolic concentrator with the light reflect focalization to thermal-collecting tube, the heating intraductal working medium.This concentrating collector optically focused is lower, and the working medium temperature is generally below 400 ℃; And the focal line behind the parabolic concentrator reflect focalization is difficult to guarantee cause energy loss in thermal-collecting tube absorbing surface scope.In order to improve the optically focused ratio, Japan adopts level crossing and paraboloidal mirror mixing condenser system, many level crossings with sunlight reflected to same paraboloidal mirror, to thermal-collecting tube, this mixing concentrating collector has improved the optically focused ratio through the paraboloidal mirror reflect focalization, but level crossing and paraboloidal mirror need two cover tracking systems, precision prescribed is higher, complex structure, difficulty of processing is big, the cost height.
Summary of the invention
The objective of the invention is to overcome above-mentioned existing in prior technology complex structure, difficulty of processing is big, defectives such as cost height, propose a kind of in the trough type solar power generation system, the light of parabolic concentrator reflect focalization, after secondary condenser reflects once more, focus on the two-stage reflecting and focusing heat accumulator on the thermal-collecting tube.
The present invention is based on following operation principle: sunshine at first shines the one-level parabolic concentrator, and the light behind the reflect focalization focuses on the thermal-collecting tube that is placed on the secondary condenser focal line after secondary condenser reflection, heating thermal-arrest intraductal working medium.
Technical solution of the present invention: it is characterized in that secondary condenser is fixed on the focal line place of one-level parabolic concentrator by the support of fixed secondary condenser, thermal-collecting tube is fixed on the focal line place of secondary condenser by the support of fixed set heat pipe.
Advantage of the present invention: two-stage reflecting and focusing heat accumulator is placed on the same support system, uses same set of tracking system, and is bigger than single-stage concentrating collector optically focused ratio; Concentrating collector is simple in structure than mixing.A whole set of design science, simple, reasonable is convenient to large-scale industrial production, and cost is low, easily promotes.
Description of drawings
Accompanying drawing 1 is the embodiments of the invention structural representations
Among the figure 1 is one-level condenser, the 2nd, the support of fixed secondary condenser, the 3rd, secondary condenser, the 4th, the support of fixed set heat pipe, the 5th, thermal-collecting tube.
The specific embodiment
To be secondary condenser 3 be fixed on the focal line place of one-level parabolic concentrator 1 by the support 2 of fixed secondary condenser for contrast accompanying drawing, its structure, and thermal-collecting tube 5 is fixed on the focal line place of secondary condenser 3 by the support 4 of fixed set heat pipe.
During work, sunshine at first shines on the one-level parabolic concentrator 1, after secondary concentrator 3 reflections, focus on the thermal-collecting tube 5 that is placed on secondary concentrator 3 focal lines by the light behind one-level parabolic concentrator 1 reflect focalization, the working medium in the heating thermal-collecting tube 5.The secondary reflection concentrating collector is placed on the same support system, uses same set of tracking system, and is bigger than single-stage concentrating collector optically focused ratio; Concentrating collector is simple in structure than mixing.And precision prescribed is much lower than prior art, greatly reduces difficulty of processing, is convenient to suitability for industrialized production, thereby has effectively reduced manufacturing cost, gives to apply and has brought convenience.

Claims (1)

1, two-stage reflecting and focusing heat accumulator is characterized in that secondary condenser is fixed on the focal line place of one-level parabolic concentrator by the support of fixed secondary condenser, and thermal-collecting tube is fixed on the focal line place of secondary condenser by the support of fixed set heat pipe.
CNA200610038388XA 2006-02-20 2006-02-20 Two-stage reflecting and focusing heat accumulator Pending CN1811297A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA200610038388XA CN1811297A (en) 2006-02-20 2006-02-20 Two-stage reflecting and focusing heat accumulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA200610038388XA CN1811297A (en) 2006-02-20 2006-02-20 Two-stage reflecting and focusing heat accumulator

Publications (1)

Publication Number Publication Date
CN1811297A true CN1811297A (en) 2006-08-02

Family

ID=36844353

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA200610038388XA Pending CN1811297A (en) 2006-02-20 2006-02-20 Two-stage reflecting and focusing heat accumulator

Country Status (1)

Country Link
CN (1) CN1811297A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009024011A1 (en) * 2007-08-17 2009-02-26 Kang, Xuehui A reflector and a solar tank-type heat collector applying it
ES2369460A1 (en) * 2009-03-30 2011-12-01 Francesc Martínez-Val Piera Solar cylinder-parabolic collector with uniformized radiation. (Machine-translation by Google Translate, not legally binding)
CN102062479B (en) * 2009-11-17 2014-04-09 皇明太阳能股份有限公司 Composite paraboloid high temperature thermal collector designed by taking lead as basis
CN104534693A (en) * 2014-12-26 2015-04-22 福建工程学院 Three-dimensional CPC-cluster solar secondary aggregator
WO2018210331A1 (en) * 2017-05-18 2018-11-22 常州大学 Double point-focusing solar energy collection apparatus
CN111854178A (en) * 2020-07-15 2020-10-30 西安交通大学 Secondary light-gathering reflection-uniform heat flow groove type solar heat collector

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009024011A1 (en) * 2007-08-17 2009-02-26 Kang, Xuehui A reflector and a solar tank-type heat collector applying it
CN100582820C (en) * 2007-08-17 2010-01-20 康雪慧 Reflection mirror and solar groove type heat collector adopting the same
ES2369460A1 (en) * 2009-03-30 2011-12-01 Francesc Martínez-Val Piera Solar cylinder-parabolic collector with uniformized radiation. (Machine-translation by Google Translate, not legally binding)
CN102062479B (en) * 2009-11-17 2014-04-09 皇明太阳能股份有限公司 Composite paraboloid high temperature thermal collector designed by taking lead as basis
CN104534693A (en) * 2014-12-26 2015-04-22 福建工程学院 Three-dimensional CPC-cluster solar secondary aggregator
WO2018210331A1 (en) * 2017-05-18 2018-11-22 常州大学 Double point-focusing solar energy collection apparatus
CN111854178A (en) * 2020-07-15 2020-10-30 西安交通大学 Secondary light-gathering reflection-uniform heat flow groove type solar heat collector
CN111854178B (en) * 2020-07-15 2021-09-07 西安交通大学 Secondary light-gathering reflection-uniform heat flow groove type solar heat collector

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