CN202747646U - Solar photothermal receiver - Google Patents

Solar photothermal receiver Download PDF

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Publication number
CN202747646U
CN202747646U CN 201220478375 CN201220478375U CN202747646U CN 202747646 U CN202747646 U CN 202747646U CN 201220478375 CN201220478375 CN 201220478375 CN 201220478375 U CN201220478375 U CN 201220478375U CN 202747646 U CN202747646 U CN 202747646U
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China
Prior art keywords
integrating sphere
spherical cavity
heat
receiver
utility
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CN 201220478375
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Chinese (zh)
Inventor
缪同群
张贵彦
王志洲
刘宝星
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SHANGHAI NEW INDUSTRIES OPTOELECTRONICS TECHNOLOGY Co Ltd
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SHANGHAI NEW INDUSTRIES OPTOELECTRONICS TECHNOLOGY Co Ltd
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Priority to CN 201220478375 priority Critical patent/CN202747646U/en
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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 relates to a solar photothermal receiver which comprises a heat insulating material, a high-reflectivity material. The solar photothermal receiver is characterized in that the outer wall of the integrating sphere shell is externally covered with the heat insulating material; the heat insulating material is externally coated with the high-reflectivity material; the integrating sphere shell is internally provided with a spherical cavity tending to one side; mutually communicated hollow channels are uniformly distributed along the circumference of the spherical cavity outside a hole wall inside the spherical cavity; the center of the spherical cavity having the shortest distance to the integrating sphere shell is provided with a small integrating sphere hole; and heat-conducting working media are charged into the hollow channels. According to the utility model, an integrating sphere which is closest to a black body, provided with the small hole and in a fully hollow spherical cavity structure is adopted as an absorbing body to absorb incident sunlight, structures, namely metal wire and the like which destroy the characteristics of the black body, are not adopted, and the structure with an open type small hole is adopted, so that the problems of high temperature resistance and high pressure resistance of a window glass are solved, and the design and manufacture difficulty is reduced; and the solar photothermal receiver disclosed by the utility model has the advantages of good spectral absorption characteristic and high sunlight energy utilization ratio.

Description

A kind of sunlight heat receiver
Technical field
The utility model relates to a kind of sunlight heat receiver, belongs to technical field of new energies.
Background technology
The solar light-heat power-generation technology is a kind of important means that current solar energy development utilizes, wherein receiver is the core apparatus in the solar light-heat power-generation system, it catches by heliostat the solar energy collecting focused on and is converted into high temperature heat, for generating set provides required power source.Receiver commonly used mainly contains following several at present.
The tubulose receiver is a kind of device of commonly using in the tower type solar solar-thermal generating system, as shown in Figure 1.It forms a cylinder by the pipe of some vertical arrangements, and the pipe outer wall scribbles the high-temperature-resistant selective absorber coatings.The solar light irradiation focused on through heliostat, at the cylinder outer wall, makes outer wall absorb sunshine and heats up and then heat energy passed to the working medium flow through in pipe.The advantage of tubulose absorber is the light that can absorb from 360 ° of scopes of surrounding, but, because the absorbed layer of pipe outer wall is exposed in surrounding environment, thermal loss is more, and heat utilization rate is not high; And coating for selective absorption is selectively to the absorption of light, this itself has just lost part energy.
The cavity type receiver is also a kind of receiver that the tower type solar solar-thermal generating system is commonly used, and its structural representation as shown in Figure 2.This receiver adopts cavity with an opening as absorber, and because the cavity with opening approaches black matrix character, the sunshine of most of incident is absorbed after the Multi reflection through cavity wall, only has small part to overflow from opening.In order to increase absorption area, usually on cavity wall, add that woven wire or potsherd are as absorber, the gas in chamber is that heating target is operation material.Gas after the absorbent body sunshine in direct heating chamber is to high temperature, and high-temperature gas outputs to heat-storing device heat is stored and is used.The cavity type receiver is better than coating for selective absorption to the absorbent properties of light.In order to increase the pressure in chamber, the heat transfer rate of operation material and absorber in the quickening chamber increases by a transparency silica glass window usually on opening.But high temperature and high pressure gas has brought another problem, silica glass window will bear tens pressure that atmospheric pressure is even higher for a long time, silica glass window high voltage performance become distinct issues.Need quartz glass is carried out to specialized designs for this reason, make it meet the high-pressure work environment.
The solar energy utilization rate of cavity type receiver will be higher than the tubulose receiver, but the black body characteristics that woven wire wherein or the isostructural existence of potsherd have destroyed cavity has been brought extra energy loss; There is on the other hand the high temperature high voltage resistant problem of silica glass window, need to carry out specialized designs.
Summary of the invention
The purpose of this utility model is in order further to reduce the thermal loss of receiver in the solar energy optical-thermal system, improve system effectiveness, adopt the integrating sphere of full hollow sphere cavity structure to absorb the sunshine of incident as absorber, after cavity absorbs the sunshine heat, inner wall temperature raises, and then heat conducts inwards along the high heat conductance case material; The liquid working material absorbing be filled with by the passage the inside after near cannulated channel outer wall heat conducts to; After operation material absorbs heat, temperature raises, and then a kind of sunlight heat receiver of pushing generator generating.
To achieve these goals, the utility model adopts following technical scheme:
Comprise insulation material, highly reflective material, it is characterized in that: integrating sphere housing outer wall is coated with insulation material outward, insulation material scribbles highly reflective material outward, be partial to a side in the integrating sphere housing and be provided with spherical hollow space, outside the spherical hollow space inner hole wall, be evenly distributed in the hollow channel interconnected along spherical hollow space, spherical hollow space has the integrating sphere aperture apart from the center of the weakness of integrating sphere housing distance, and hollow channel is filled with the working media of heat conduction; Described integrating sphere housing is selected thyrite, described working media liquid, and the diameter of integrating sphere aperture is between 140 ~ 180mm.
Obvious advantage and the effect implemented after this technology are: a kind of sunlight heat receiver is owing to having adopted the integrating sphere with foraminate full hollow sphere cavity structure that approaches black matrix most to absorb the sunshine of incident as absorber, and the structure without destruction black body characteristics such as wires, adopt the structure of open aperture, avoided the high temperature high voltage resistant problem of window glass, reduced the designing and making difficulty, had advantages of that spectral absorption characteristics is good, the solar energy utilization rate is high.
The accompanying drawing explanation
The tubulose receiver architecture schematic diagram that Fig. 1 is the tower type solar solar-thermal generating system;
The cavity type receiver architecture schematic diagram that Fig. 2 is the tower type solar solar-thermal generating system;
Fig. 3 is a kind of sunlight heat receiver architecture of the utility model schematic diagram;
Wherein, 1-highly reflective material, 2-insulation material, 3-integrating sphere housing, 4-outer wall, 5-inner hole wall, 6-integrating sphere aperture, 7-hollow channel, 8-spherical hollow space.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described .
Referring to accompanying drawing 3, the outer insulation material (2) that is coated with of integrating sphere housing (3) outer wall (4), the outer highly reflective material (1) that scribbles of insulation material (2), be partial to a side in integrating sphere housing (3) and be provided with spherical hollow space (8), outside spherical hollow space (8) inner hole wall (5), be evenly distributed in the hollow channel (7) interconnected along spherical hollow space (8), spherical hollow space (8) has integrating sphere aperture (6) apart from the center of the weakness of integrating sphere housing (3) distance, forms the sunlight heat receiver.Thyrite is selected in the making of integrating sphere housing (3), and it is liquid that hollow channel (7) the inside is filled with working media.
Referring to accompanying drawing 3, sunshine by the heliostat reflect focalization incides the inner hole wall (5) of the spherical hollow space (8) in integrating sphere housing (3) from integrating sphere aperture (6) with very little hot spot, after most of sunlight energy of inner hole wall (5) absorption incident, temperature raises, and very little a part of sunlight energy is overflowed from integrating sphere aperture (6).Heat is outwards propagated from inner hole wall (5) along integrating sphere housing (3), and the temperature of the outer wall (4) of hollow channel (7) is raise, and outer wall (4) transfers heat to the heat absorption conductive working media of hollow channel (7) the inside again.Working media absorbs directly pushing generator generating after heat, or heat is stored to prepare against while needing uses.
Integrating sphere housing (3) outside covers the heat-insulating material (2) that scribbles highly reflective coatint (1), to prevent heat, conducts to integrating sphere housing (3) outside, reduces thermal loss.
According to above-mentioned principle and structure, the utility model not only can be applicable to the sunlight heat power generation system, also can be used for the fields such as central solar heating system, desalinization and the hydrogen manufacturing of pyrolysis water.

Claims (4)

1. a sunlight heat receiver, comprise insulation material, highly reflective material, it is characterized in that: integrating sphere housing outer wall is coated with insulation material outward, insulation material scribbles highly reflective material outward, be partial to a side in the integrating sphere housing and be provided with spherical hollow space, outside the spherical hollow space inner hole wall, be evenly distributed in the hollow channel interconnected along spherical hollow space, spherical hollow space has the integrating sphere aperture apart from the center of the weakness of integrating sphere housing distance, and hollow channel is filled with the working media of heat conduction.
2. a kind of sunlight heat receiver according to claim 1, it is characterized in that: described integrating sphere housing is selected thyrite.
3. a kind of sunlight heat receiver according to claim 1, it is characterized in that: described working media is liquid.
4. a kind of sunlight heat receiver according to claim 1, it is characterized in that: the diameter of integrating sphere aperture is between 140 ~ 180mm.
CN 201220478375 2012-09-19 2012-09-19 Solar photothermal receiver Active CN202747646U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220478375 CN202747646U (en) 2012-09-19 2012-09-19 Solar photothermal receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220478375 CN202747646U (en) 2012-09-19 2012-09-19 Solar photothermal receiver

Publications (1)

Publication Number Publication Date
CN202747646U true CN202747646U (en) 2013-02-20

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CN (1) CN202747646U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103673316A (en) * 2012-09-19 2014-03-26 上海新产业光电技术有限公司 Solar photothermal receiver
CN106225261A (en) * 2016-08-16 2016-12-14 华电电力科学研究院 A kind of solar power tower receiver architecture and method of reseptance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103673316A (en) * 2012-09-19 2014-03-26 上海新产业光电技术有限公司 Solar photothermal receiver
CN106225261A (en) * 2016-08-16 2016-12-14 华电电力科学研究院 A kind of solar power tower receiver architecture and method of reseptance
CN106225261B (en) * 2016-08-16 2018-06-05 华电电力科学研究院 A kind of solar power tower receiver architecture and method of reseptance

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