CN201138082Y - Solar energy receiving apparatus - Google Patents

Solar energy receiving apparatus Download PDF

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Publication number
CN201138082Y
CN201138082Y CNU2007200609941U CN200720060994U CN201138082Y CN 201138082 Y CN201138082 Y CN 201138082Y CN U2007200609941 U CNU2007200609941 U CN U2007200609941U CN 200720060994 U CN200720060994 U CN 200720060994U CN 201138082 Y CN201138082 Y CN 201138082Y
Authority
CN
China
Prior art keywords
heat
internal layer
thermal insulation
external thermal
solar
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.)
Expired - Fee Related
Application number
CNU2007200609941U
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Chinese (zh)
Inventor
廉永旺
马伟斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Institute of Energy Conversion of CAS
Original Assignee
Guangzhou Institute of Energy Conversion of CAS
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 Guangzhou Institute of Energy Conversion of CAS filed Critical Guangzhou Institute of Energy Conversion of CAS
Priority to CNU2007200609941U priority Critical patent/CN201138082Y/en
Application granted granted Critical
Publication of CN201138082Y publication Critical patent/CN201138082Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • Y02E10/44Heat exchange systems

Abstract

The utility model discloses a solar energy receiving device, and comprises an outer heat-preservation layer and an inner layer, wherein, a sealed space between the outer heat-preservation layer and the inner layer is a heat carrier cavity; the space surrounded by the inner layer is a heat absorption cavity; the outer heat-preservation layer is provided with a heat carrier inlet and a heat carrier outlet; the heat carrier cavity is communicated with the external environment through the heat carrier inlet and the heat carrier outlet; a transmission port is arranged correspondently on the outer heat-preservation layer and the inner layer; the external light can enter into the heat-absorption cavity through the transmission port. The solar energy receiving device has small sun-light reflection and heat radiation and high energy efficiency.

Description

Solar attachment
Technical field
The utility model relates to a kind of solar attachment.
Background technology
In the solar energy heat utilization field, solar attachment is a heat energy with conversion of solar energy mainly, the effect of the height decision solar energy equipment of its heat utilization efficiency, the structure of existing common high temperature solar device mainly is: outer is that transparent glass tube, internal layer are metal tube, it between skin and the internal layer vacuum layer, scribble solar selectively absorbing coating at the inner layer metal tube outer surface, the space in the internal layer is the heat carrier chamber; Sunshine is by after focusing on, and passes transparent glass layer and shines on the inner layer metal pipe, and the heat carrier in the inner layer metal pipe is with heat absorption; But rising along with temperature, the also outside radiations heat energy of internal layer itself, cause the loss of heat energy, the absorptivity of the solar selectively absorbing coating of inner layer outer surface, the minor variations of emissivity all can make a big impact to the performance of equipment, so, pursuing higher absorptivity and lower emissivity is the key of high-temperature technology research in the solar energy, the absorptivity of solar selectively absorbing coating can not unrestrictedly improve, under the current techniques condition, it is 90 percent more that absorptivity only has, and still has a large amount of solar radiations to scatter and disappear; Because thermal exposure is directly proportional with the biquadratic of temperature, along with the rising of internal layer temperature, its thermal exposure becomes biquadratic to increase, in solar energy in the high temperature application apparatus, it is to launch by solar energy absorbing coating self that quite a lot of part energy is arranged, and causes great waste; Simultaneously, because glass-to-metal seal technology is comparatively complicated, its manufacturing cost height, and stability is not high.
Summary of the invention
The purpose of this utility model is to provide a kind of solar attachment, and the energy emissivity of this receiving system is low, the efficiency height.
The utility model is achieved through the following technical solutions:
A kind of solar attachment, this receiving system comprises external thermal insulation and internal layer, and the seal cavity between external thermal insulation and the internal layer is the heat carrier chamber, and the space that internal layer enclosed is a heat-absorbing chamber; Be provided with heat carrier import, heating medium outlet on external thermal insulation, the heat carrier chamber communicates with the external world respectively by this heat carrier import, heating medium outlet; Opposite position is provided with the printing opacity mouth on external thermal insulation, internal layer, and extraneous light can enter into heat-absorbing chamber by this printing opacity mouth.
In the utility model, after the solar energy line focus, enter into heat-absorbing chamber by the printing opacity mouth, repeatedly reflect in heat-absorbing chamber and absorbed by internal layer, along with the rising of internal layer temperature, its heat absorbs by the heat carrier in heat carrier chamber; In the utility model, after sunshine enters into heat-absorbing chamber, can't from the printing opacity mouth, radiate once more easily, after the absorbing cavity temperature raises, heat in it can outwards not distribute from the printing opacity mouth yet, and with respect to prior art, the utility model can be a heat energy with the conversion of solar energy that all enters in the heat-absorbing chamber almost, the efficiency height, simple in structure; The utility model is if be used for the reception of high temperature solar, because heat radiation is little, reception is more obvious.
Further improvement of the utility model is:
Described printing opacity mouth place is provided with clear glass and described heat-absorbing chamber is sealed.Clear glass can be avoided the air in the heat-absorbing chamber to flow and with loses heat, also can avoid dust to enter into heat-absorbing chamber.
Described external thermal insulation, internal layer are spherical, and described printing opacity mouth is poroid.This structure can be used for the point focusing of sunshine, and at this moment, receiving system integral body is spherical.
Described external thermal insulation, internal layer are column, and described printing opacity mouth is strip.This structure can be used for the line focus of sunshine, and further structure is that described external thermal insulation, internal layer are cylindric.
Described external thermal insulation comprises heat-insulation layer internal layer and the heat-insulation layer skin of being made by insulation material.The heat-insulation layer skin should have resistance to elevated temperatures, in order to avoid embrittlement at high temperature or scaling loss, the heat-insulation layer internal layer is used to guarantee external thermal insulation integral intensity and sealing.
Described internal layer adopts metal material to make.Adopt metal material, make the thermal conductivity of internal layer good.
The inner surface of described internal layer adheres to high temperature resistant solar selectively absorbing coating.
The utility model is particularly useful for the reception of high temperature solar, and owing to structural design of the present utility model, its scope of application is not limited to this, even also can be used for the reception of low-temperature solar energy certainly.
Description of drawings
Fig. 1 is the longitudinal sectional view of the utility model embodiment one;
Fig. 2 is the transverse sectional view of Fig. 1;
Fig. 3 is to use schematic diagram;
Fig. 4 is the cutaway view of the utility model embodiment two;
Fig. 5 is the upward view of Fig. 4;
Description of reference numerals:
1, heat-insulation layer skin, 2, internal layer, 3, the heat carrier chamber, 4, heat-absorbing chamber, 5, the heat carrier import, 6, heating medium outlet, 7, the printing opacity mouth, 8, clear glass, 9, the heat-insulation layer internal layer.
The specific embodiment
Embodiment one
To shown in Figure 2, a kind of solar attachment, this receiving system comprise external thermal insulation and internal layer 2 as Fig. 1, and the seal cavity between external thermal insulation and the internal layer 2 is heat carrier chamber 3, and the space that internal layer 2 is enclosed is a heat-absorbing chamber 4; Be provided with heat carrier import 5, heating medium outlet 6 on external thermal insulation, heat carrier chamber 3 communicates with the external world respectively by this heat carrier import 5, heating medium outlet 6; Opposite position is provided with printing opacity mouth 7 on external thermal insulation, internal layer 2, and extraneous light can enter into heat-absorbing chamber 4 by this printing opacity mouth 7.
Wherein, external thermal insulation comprises heat-insulation layer internal layer 9 and the heat-insulation layer skin of being made by insulation material 1, and printing opacity mouth 7 places are provided with clear glass 8 and heat-absorbing chamber 4 is sealed, and external thermal insulation, internal layer 2 are cylindric, printing opacity mouth 7 is strip, the axis coinciding of external thermal insulation and internal layer 2; Internal layer 2 adopts metal material to make, and its inner surface adheres to high temperature resistant solar selectively absorbing coating.
As shown in Figure 3, after if the sunshine after focusing on enters into heat-absorbing chamber 4 by printing opacity mouth 7, through repeatedly reflection, energy is absorbed by the absorber coatings on the internal layer 2 gradually in heat-absorbing chamber 4, and be that heat energy raises the internal layer temperature with conversion of solar energy, the heat energy that is produced is taken away by heat carrier; In the present embodiment, after sunshine enters heat-absorbing chamber 4, have only minimum part to shed by loophole 7, all the other all are absorbed, after internal layer 2 temperature raise, because the effect of external thermal insulation, heat can be to external radiation yet, present embodiment in terms of existing technologies, reflection of light and heat radiation are all very little, the efficiency height.
Embodiment two
As Fig. 4, shown in Figure 5, in the present embodiment, external thermal insulation (being heat-insulation layer outer 1 and heat-insulation layer internal layer 9), internal layer 2 are spherical, and printing opacity mouth 7 is poroid.This enforcement is used for the solar attachment of point focusing, and its principle is identical with embodiment one, repeats no more herein.

Claims (8)

1, a kind of solar attachment, this receiving system comprises external thermal insulation and internal layer, it is characterized in that, and the seal cavity between external thermal insulation and the internal layer is the heat carrier chamber, and the space that internal layer enclosed is a heat-absorbing chamber; Be provided with heat carrier import, heating medium outlet on external thermal insulation, the heat carrier chamber communicates with the external world respectively by this heat carrier import, heating medium outlet; Opposite position is provided with the printing opacity mouth on external thermal insulation, internal layer, and extraneous light can enter into heat-absorbing chamber by this printing opacity mouth.
2, solar attachment according to claim 1 is characterized in that, described printing opacity mouth place is provided with clear glass and with described heat-absorbing chamber sealing.
3, solar attachment according to claim 1 is characterized in that described external thermal insulation, internal layer are spherical, and described printing opacity mouth is poroid.
4, as solar attachment as described in the claim 3, it is characterized in that described external thermal insulation, internal layer are column, described printing opacity mouth is strip.
5, as solar attachment as described in the claim 4, it is characterized in that described external thermal insulation, internal layer are cylindric.
6, as solar attachment as described in each in the claim 1 to 5, it is characterized in that described external thermal insulation comprises heat-insulation layer internal layer and the heat-insulation layer skin of being made by insulation material.
7, as solar attachment as described in each in the claim 1 to 5, it is characterized in that described internal layer adopts metal material to make.
8, as solar attachment as described in each in the claim 1 to 5, it is characterized in that the inner surface of described internal layer adheres to high temperature resistant solar selectively absorbing coating.
CNU2007200609941U 2007-12-06 2007-12-06 Solar energy receiving apparatus Expired - Fee Related CN201138082Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200609941U CN201138082Y (en) 2007-12-06 2007-12-06 Solar energy receiving apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200609941U CN201138082Y (en) 2007-12-06 2007-12-06 Solar energy receiving apparatus

Publications (1)

Publication Number Publication Date
CN201138082Y true CN201138082Y (en) 2008-10-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200609941U Expired - Fee Related CN201138082Y (en) 2007-12-06 2007-12-06 Solar energy receiving apparatus

Country Status (1)

Country Link
CN (1) CN201138082Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012055160A1 (en) * 2010-10-24 2012-05-03 Zhang Xianfeng Light-locking solar thermal collector and light-locking solar thermal collecting method
ITRM20120676A1 (en) * 2012-12-31 2014-07-01 Innova Solar Energy S R L SOLAR CONCENTRATOR
CN106989524A (en) * 2017-04-28 2017-07-28 中国能源建设集团陕西省电力设计院有限公司 A kind of light spot energy measuring system and method suitable for solar energy dish-style optically focused

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012055160A1 (en) * 2010-10-24 2012-05-03 Zhang Xianfeng Light-locking solar thermal collector and light-locking solar thermal collecting method
ITRM20120676A1 (en) * 2012-12-31 2014-07-01 Innova Solar Energy S R L SOLAR CONCENTRATOR
CN106989524A (en) * 2017-04-28 2017-07-28 中国能源建设集团陕西省电力设计院有限公司 A kind of light spot energy measuring system and method suitable for solar energy dish-style optically focused

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20081022

Termination date: 20121206