CN202204186U - Trench type line focus medium-and-low-temperature integrated solar thermal collector - Google Patents
Trench type line focus medium-and-low-temperature integrated solar thermal collector Download PDFInfo
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- CN202204186U CN202204186U CN2011202004973U CN201120200497U CN202204186U CN 202204186 U CN202204186 U CN 202204186U CN 2011202004973 U CN2011202004973 U CN 2011202004973U CN 201120200497 U CN201120200497 U CN 201120200497U CN 202204186 U CN202204186 U CN 202204186U
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- 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
- Y02E10/44—Heat exchange systems
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
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Abstract
The utility model relates to a trench type line focus medium-and-low-temperature integrated solar thermal collector and belongs to the technical field of solar heat utilization. The trench type line focus medium-and-low-temperature integrated solar thermal collector consists of an inversed V-shaped heat absorption plate (1), heat conduction fins (2) and a cylindrical enclosed cavity which are arranged on the heat absorption plate (1), and a thermal insulation material (4) and a stainless steel shell which are arranged outside the cylindrical enclosed cavity (3), and the inversed V-shaped heat absorption plate (1), the heat conduction fins (2) and the cylindrical enclosed cavity (3) are made of the same material by molding and drawing. In the utility model, the solar thermal collector is made of materials which are sold on market by the conventional method. The operation method of the utility model is the same as the conventional method. The trench type line focus medium-and-low-temperature integrated solar thermal collector has the advantages of simple structure, low cost, stable performance, and long service life, can be used for industrial heat supply, thermal power generation, refrigeration and drying, and is particularly suitable for regions which are rich in solar energy resources.
Description
Technical field
The utility model relates to low-temperature solar energy integrated heat-collection device in a kind of groove type line-focusing, belongs to the solar energy utilization technique field.
Background technology
Along with conventional energy resource constantly consumes, natural environment goes from bad to worse; How rationally, efficiently to utilize solar energy to become the problem of whole world extensive concern; And in the solar thermal utilization process; The core apparatus that solar energy is converted into heat energy is a solar thermal collector, and its collecting efficiency and production cost can directly have influence on the conversion efficiency and the economy of whole solar energy system.Solar thermal collector can be divided into two kinds of non-focusing type solar thermal collector and solar concentrating collectors.That non-focusing type solar thermal collector mainly contains is plate, three kinds on vacuum tube and CPC type, belongs to the low-temperature solar energy heat collector.Focusing solar collector mainly contains slot type, dish formula and tower etc., belongs to middle high temperature heat collector.Focusing solar collector is compared with non-focusing type heat collector has obvious advantage: the incident energy current density that heat collector receives is big and area of dissipation is little, thereby under higher conversion temperature condition, has high conversion rate.
Through Salar light-gathering conversion, can obtain high-quality thermal source, this is the focus of present solar energy heat utilization field research, divides according to the optically focused mode, the Salar light-gathering conversion method has two types on a focus type and line focus type.On focus (line) position, the receiver that places focus (line) to locate absorbs solar radiant energy and then working media is heated beam condensing unit with solar energy collecting.At present; Point focusing type solar energy system mainly contains two kinds of tower system and dish formula systems; Be used for high temperature fields such as solar energy thermal-power-generating and Salar light-gathering (focus on than generally at 50-3000) more, and line focus type solar energy system warm occasion (focus on than generally at 3-80) of utilizing in being mainly used in, most typical is that the slot type system can produce the heat energy of (100-400 ℃); In addition, the Fresnel line focus is also more commonly used.
Heat collector in the slot type focusing system mostly uses the straight-through type vacuum pipe; Though such heat collector has efficient height, advantage that heat waste is little; Metal and glass sealing are difficult, the coefficient of expansion is different and the high deficiency of production cost, is difficult to large-scale promotion application but exist.At present, abroad also have only indivedual companies of the Israel and the U.S. can large-scale production; Domesticly the Eleventh Five-Year Plan period arranging the special project research of straight-through type vacuum pipe, but its application and cost are still among exploring.
In order to overcome the lack of straight-tube, it was suggested that a new line focus constantly collector, which is a typical representative of the 1970s Boyd proposed a blackbody absorber, which consists of two concentric cylinders with side opening, working medium flows between the two cylindrical channels, internal cylindrical heat, wrap the outer cylinder with insulation to reduce heat loss; Barra subsequently made improvements to its structure, the inner wall surface disposed between 8 cylinder tube instead of channel openings increase the V-shaped heat mirrors, hot air through the chamber to heat the fluid; China Science and Technology University CHOU Joe Barra force, etc. Taking into account the absorber part of the sun fall on the inner wall of the heat loss increases resulting proposed clusters and the tube wall tightly coupled solution; Bakos trough collector absorber used in metal heat pipe vacuum tube and the outer arc while using a combination of insulation layer forms; Shanghai Jiaotong University Zhang Liying, etc. with different cavity structure of several line focus performance absorber collectors theoretical and experimental analysis, found to have a triangular configuration of absorber cavity optimal performance, the collector temperature 150 ℃ conditions, to obtain more than 40% thermal efficiency.More than work good trial has been made in the research of cavity type heat collector, but separately the shortcoming of himself is arranged all, push temperature utilization in the solar energy to practical application so need a kind of efficient, cheap heat collector badly.
Summary of the invention
The utility model aims to provide that a kind of collecting efficiency is high, simple in structure, low-temperature solar energy integrated heat-collection device in life-span length, dependable performance, the cheap groove type line-focusing.
The utility model is taken all factors into consideration from optical efficiency, heat loss and heat and mass three aspects based on existing trench light condensing system, has proposed a kind of brand-new integrated heat-collection device.Direct irradiation of sunlight after the focusing is coated with the high-temperature-resistant selective absorber coatings on the suction disc face on absorber plate, can the solar radiant energy of incident efficiently be converted into heat energy; Working fluid flows through the absorber plate back side takes away the heat energy that focuses on after transforming, and heat collector draws through mold with the higher metal material of thermal conductivity factor and forms.
In the groove type line-focusing of the utility model low-temperature solar energy integrated heat-collection device by draw with the same material mold form fall " V " type absorber plate (1), place heat transmission fin (2) and the cylindrical chamber (3) of enclosing on the absorber plate (1), place cylindrical outer insulation material (4) in chamber (3) and stainless steel casing (5) composition of enclosing.
The utility model adopts the material of market sale to prepare according to conventional method.The same conventional method of the method for operating of the utility model.
The advantage of the utility model is the integrated form of collector structure, directly draws through the same material mold to form, and has avoided being difficult between foreign material sealing-in and the different critical defect of thermal coefficient of expansion, has prolonged service life, has reduced cost.Simultaneously, the slot type system that this heat collector is used for different optically focused ratios can produce 80-300 ℃ heat energy, can be used for industrial heating, heat generating, refrigeration, reach drying, is particularly suitable for the solar energy resources abundant area.
Description of drawings
Fig. 1 is the perspective view of heat collector.
Fig. 2 is the schematic cross-section of heat collector.
The specific embodiment
In the groove type line-focusing of the utility model low-temperature solar energy integrated heat-collection device by draw with the same material mold form fall " V " type absorber plate (1), place heat transmission fin (2) and the cylindrical chamber (3) of enclosing on the absorber plate (1), place cylindrical outer insulation material (4) in chamber (3) and stainless steel casing (5) composition of enclosing.Wherein: duralumin is adopted in part (1), (2), (3), and phenol formaldehyde foam is adopted in (4), and stainless steel is adopted in (5).
The utility model adopts the material of market sale to prepare according to conventional method.That is: draw drawing according to result of calculation, according to the figure mold, at last mould is drawn moulding then, promptly part (1), (2), (3) are an integral body, have overcome the deficiency of sealing-in difficulty between the foreign material.Can know that by Fig. 1 the heat collector two ends need be sealed, need carry out following two work for this reason.At first; Cut out two fan-shaped duralumin sheets, size is for falling the arc sum of " V " type and its underpart, and arcuate section should have certain thickness in the longitudinal direction; Be convenient to supply silk at its outer surface, the mode through welding between fan-shaped aluminium flake and (1), (3) couples together.Secondly, need two adapters, realize with face of cylinder outer wall on a silk mouth dock.Promptly accomplish the sealing-in work of heat collector through these two steps.Heat collector draws after the moulding, in order to increase the absorptivity of incident radiation and to reduce the heat radiation emissivity, also needs on the absorber plate sensitive surface, plate coating for selective absorption commonly used.
The above-mentioned heat collector that is made is placed the focal line place of groove type line-focusing system; The sunshine of reception after via the parabola groove focusing mirror; Coating for selective absorption absorbs the solar energy highly effective of incident; And being converted into heat energy, the working media that flows through behind heating absorber plate (1) and then the heating absorber plate, the working media after being heated are directly done heat supply, the hot and cold generating of system or dry using.
Claims (3)
1. low-temperature solar energy integrated heat-collection device in the groove type line-focusing; It is characterized in that: the solar integration heat collector by draw with the same material mold form fall " V " type absorber plate (1), place heat transmission fin (2) and the cylindrical chamber (3) of enclosing on the absorber plate (1), place cylindrical outer insulation material (4) in chamber (3) and stainless steel casing (5) composition of enclosing.
2. low-temperature solar energy integrated heat-collection device in a kind of groove type line-focusing as claimed in claim 1 is characterized in that: fall " V " type absorber plate (1), heat transmission fin (2) and cylindrically enclose chamber (3) three and draw through mold to form, have incorporate characteristics.
3. low-temperature solar energy integrated heat-collection device in a kind of groove type line-focusing as claimed in claim 1; It is characterized in that: heat transmission fin (2) will fall " V " type absorber plate (1) and cylindrical fluid passage of enclosing between the chamber (3) and be divided into the passage aisle of four identical sizes, form uiform section and conduct heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202004973U CN202204186U (en) | 2011-06-15 | 2011-06-15 | Trench type line focus medium-and-low-temperature integrated solar thermal collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202004973U CN202204186U (en) | 2011-06-15 | 2011-06-15 | Trench type line focus medium-and-low-temperature integrated solar thermal collector |
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| Publication Number | Publication Date |
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| CN202204186U true CN202204186U (en) | 2012-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202004973U Expired - Fee Related CN202204186U (en) | 2011-06-15 | 2011-06-15 | Trench type line focus medium-and-low-temperature integrated solar thermal collector |
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| CN (1) | CN202204186U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676568A (en) * | 2015-02-03 | 2015-06-03 | 广东电网有限责任公司电力科学研究院 | Steam generator and steam generation system based on line focusing solar heat collection |
| CN105605801A (en) * | 2016-03-08 | 2016-05-25 | 天津大学 | Cavity heat receiver applicable to solar line-focus heat collector |
| 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 |
| CN109724267A (en) * | 2018-12-13 | 2019-05-07 | 沈阳佳晔能源科技股份有限公司 | A kind of groove type solar opto-thermal system by air heat-carrying |
-
2011
- 2011-06-15 CN CN2011202004973U patent/CN202204186U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676568A (en) * | 2015-02-03 | 2015-06-03 | 广东电网有限责任公司电力科学研究院 | Steam generator and steam generation system based on line focusing solar heat collection |
| CN105605801A (en) * | 2016-03-08 | 2016-05-25 | 天津大学 | Cavity heat receiver applicable to solar line-focus heat collector |
| 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 |
| CN109724267A (en) * | 2018-12-13 | 2019-05-07 | 沈阳佳晔能源科技股份有限公司 | A kind of groove type solar opto-thermal system by air heat-carrying |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120425 Termination date: 20120615 |