CN113124575B - Parabolic trough type baffling type integrated photo-thermal synergistic reaction device - Google Patents
Parabolic trough type baffling type integrated photo-thermal synergistic reaction device Download PDFInfo
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- CN113124575B CN113124575B CN202110356465.0A CN202110356465A CN113124575B CN 113124575 B CN113124575 B CN 113124575B CN 202110356465 A CN202110356465 A CN 202110356465A CN 113124575 B CN113124575 B CN 113124575B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
- F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
- F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
- F24S30/425—Horizontal axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/20—Arrangements for controlling solar heat collectors for tracking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/10—Details of absorbing elements characterised by the absorbing material
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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
- Y02E10/47—Mountings or tracking
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Abstract
The utility model provides a thing slot type baffling type light and heat is in coordination with reaction unit is thrown in integration, includes throwing thing slot type spotlight ware and baffling type light and heat is in coordination with the reactor, baffling type light and heat is located the focal line of throwing thing slot type spotlight ware during operation in coordination with the reactor, baffling type light and heat is in coordination with the change removal of throwing thing slot type spotlight ware focal line. The invention fully utilizes high-density light and heat provided by the parabolic trough condenser to carry out photo-thermal concerted catalytic reaction, ensures the full reaction of reactants by a baffled structure, realizes the efficient conversion from solar energy to chemical energy, improves the utilization efficiency of the solar energy, and further reduces the consumption of fossil energy and the emission of pollutants.
Description
Technical Field
The invention relates to the technical field of solar energy utilization, in particular to an integrated parabolic trough type baffling type photo-thermal synergistic reaction device.
Background
The solar energy has rich reserves, green and clean property and higher grade, and is one of the most potential renewable energy sources. However, solar energy has low energy density, uneven spatial distribution, uneven temporal distribution, and the like, and thus is difficult to be directly and efficiently utilized. The chemical reaction is driven by directly utilizing solar energy, and then the solar energy is converted into chemical energy, so that the storage can be carried out in a season-crossing manner and day-night manner, and the solar energy is an effective technical means for utilizing the solar energy. However, the efficiency of the traditional photocatalytic reaction is extremely low; the photo-thermal driven thermal reaction has high cost. By utilizing the spectral characteristics of solar energy of 200-2500nm, heat required by the reaction is provided by infrared light, and light energy is provided by ultraviolet light and visible light, so that the photo-thermal concerted catalysis reaction is driven. The novel catalysis technology can effectively improve the reaction efficiency of the traditional photocatalysis, effectively reduce the activation energy of thermal reaction and reduce the reaction temperature. As is well known, the reactor can play a key role in process intensification and reaction efficiency improvement in the macro application of the catalyst, but a light-collecting reactor for photo-thermal concerted catalytic reaction does not exist at present, so that the practical application of the novel catalytic technology is greatly hindered.
Disclosure of Invention
In order to overcome the technical problems, the invention provides an integrated parabolic trough type baffling type photo-thermal synergistic reaction device, which aims to solve the problems of reaction process strengthening and reaction efficiency improvement in the solar-driven photo-thermal reaction process. The light and the heat of the high density that this device make full use of throws the parabolic trough concentrator and provide carry out light and heat concerted catalysis reaction, and baffling type structure ensures that the reactant fully reacts, has realized the high-efficient conversion of solar energy to the chemical energy, has improved solar energy utilization efficiency to reduce fossil energy resource consumption and pollutant emission.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a thing slot type baffling type light and heat is in coordination with reaction unit is thrown in integration, includes throwing thing slot type spotlight ware 1 and baffling type light and heat is in coordination with reactor 2, 2 during operation of baffling type light and heat are located the focal line of throwing thing slot type spotlight ware 1, 2 changes along with throwing thing slot type spotlight ware 1 focal line of baffling type light and heat are in coordination with reactor and are removed.
The baffled photothermal synergistic reactor 2 comprises a quartz shell 4, a reactant inlet 3 and a reactant outlet 8 are respectively arranged at two ends of the quartz shell 4, a catalytic bed 6 is placed inside the quartz shell 4, a baffle plate 7 is vertically arranged between the catalytic bed 6 and the quartz shell 4, and the catalytic bed 6 is positioned on the focal line of the parabolic trough type condenser 1.
And a vacuum interlayer 5 is arranged on the outer side edge surface of the quartz shell 4.
The surface of the quartz shell 4 is provided with an antireflection film, and the light transmittance of the antireflection film is more than 97%.
The catalytic bed 6 comprises a photo-thermal synergistic catalyst loaded with plasmon metal and a base material, absorbs sunlight in a full spectrum manner, and performs photo-thermal synergistic catalytic reaction on gas-phase reactants by utilizing heat-photoelectron-thermoelectrons converted from the sunlight.
The catalytic bed 6 is of a porous structure and is arranged along the direction of a focal line; the porous structure is used to ensure that the gas/liquid phase reactants enter the reactor from the reactant inlet 3 and are blocked by the baffle plates 7 to repeatedly pass through the catalytic bed 6 and finally flow out from the reactant outlet 8.
Said baffles 7 are in intimate contact with the catalytic bed 6 to form a blockage of the fluid flow in the direction of the focal line and a guidance of the deflection of the fluid perpendicular to the direction of the focal line.
The invention has the beneficial effects that:
1. the invention adopts a baffle plate type structure, so that the flow path of reactants in the reactor is much larger than that of a tubular filling type reactor, the pressure drop of the reactants is much smaller, the effective contact of the reactants and a catalyst is more uniform, and the reaction efficiency is improved.
2. The catalyst bed adopted by the invention is fixedly arranged, so that the problem of abrasion caused by mutual collision between particles due to inertia of the catalyst when the reactor moves along with the condenser in the use process of the packed reactor can be solved. Therefore, the service life of the catalyst is prolonged, and the operation and maintenance cost is reduced.
3. The integrated parabolic trough type baffling type photo-thermal synergistic reaction device provided by the invention can convert low-density solar energy into high-density heat energy and light energy by matching with the parabolic trough type condenser, the light condensation ratios of different forms can be matched with chemical reactions at different temperatures, and meanwhile, the length of the reactor can be matched with the reaction efficiency of reactants, so that the device is strong in universality and low in cost.
4. The integrated parabolic trough type baffling type photo-thermal synergistic reaction device provided by the invention can utilize the concentrated sunlight provided by the condenser and can also utilize the non-concentrated sunlight, and the capture area of the sunlight can be maximized.
Drawings
FIG. 1 is a schematic structural diagram of an integrated parabolic trough baffled photothermal synergistic reaction device.
Wherein each component and the corresponding label are: 1-a parabolic trough concentrator; 2-baffling type photo-thermal synergistic reactor; 3-a reactant inlet; 4-a quartz shell; 5-vacuum interlayer; 6-catalytic bed; 7-baffle plate; 8-reactant outlet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of an integrated concentrated solar photo-thermal cooperative catalytic reaction device, which can utilize concentrated solar energy provided by a parabolic trough type condenser and natural non-concentrated solar energy to drive photo-thermal cooperative reaction, so as to realize conversion and storage of solar energy to chemical energy. Meanwhile, process strengthening is realized through multi-field synergistic effects such as an optical field, a flow field, a temperature field and the like, so that the solar energy-chemical energy conversion efficiency is obviously improved. The integrated device consists of a parabolic trough type condenser 1 and a baffling type photo-thermal synergistic reactor 2.
Wherein, baffling type light and heat coreactor 2 includes: reactant inlet 3, quartz shell 4, vacuum interlayer 5, catalytic bed 6, baffle 7, reactant outlet 8. The baffled photo-thermal synergistic reactor 2 is positioned on the focal line of the parabolic trough type condenser 1 when in work so as to ensure that two sides of the catalytic bed 6 can receive concentrated sunlight and non-concentrated sunlight approximately and vertically at the same time, and the light spot of the concentrated sunlight completely covers the catalytic bed 6. In the scheme, the quartz shell needs to reduce light loss, and the transmittance of sunlight needs to be more than 97% so as to improve the utilization efficiency of solar energy.
The vacuum interlayer 5 reduces the heat loss of the reactor, and the efficiency of the heat loss is lower than 95%.
The baffles 7 are arranged in a vertical relationship with the catalytic bed 6 to ensure that the direction of the reactant flow field is approximately perpendicular to the arrangement direction of the catalytic bed.
The catalytic bed 6 is composed of a photo-thermal synergistic catalyst loaded with plasmon metal and a substrate material, absorbs sunlight in a full spectrum, and performs photo-thermal synergistic catalytic reaction on a gas-phase reactant by utilizing the heat, photoelectron and hot electron converted by the sunlight so as to realize high-efficiency catalytic conversion.
The quartz shell 4 is provided with a vacuum interlayer 5 structure along the surface, and the surface of the quartz shell is provided with an antireflection film, and the light transmittance of the antireflection film is more than 97%.
The invention can utilize the concentrated sunlight provided by the parabolic trough type condenser and utilize the non-concentrated sunlight to realize the maximum utilization of solar energy, and meanwhile, the baffled reaction form can improve the reaction efficiency and the conversion from the solar energy to chemical energy.
A catalytic bed 6 is arranged in the middle of the baffled photo-thermal synergistic reactor 2, and sunlight can fall on the catalytic bed 6 through upper and lower quartz windows; a baffle plate 7 is arranged between the catalytic bed 6 and the upper and lower windows, the catalytic bed 6 is of a porous structure, and gas phase/liquid phase reactants can enter the reactor from the reactant inlet 3 and can be blocked by the baffle plate 7 to repeatedly pass through the catalytic bed 6, and finally flow out from the reactant outlet 8; the quartz shell 4 (containing a vacuum interlayer) not only ensures that light rays enter the reactor, but also keeps the temperature of the whole reactor.
In the invention, the parabolic trough type photo-thermal reaction device with higher energy is developed and applied in consideration of the fact that photo-thermal synergistic reaction cannot be effectively driven by low optical density and thermal density under natural light, and the method for providing high-density light and high-density heat energy for the photo-driven chemical reaction is one of effective ways for solving the problem of solar energy utilization.
The following is a specific example of the photothermal coupled methanol reforming hydrogen production reaction:
the condenser of the device selects a parabolic trough condenser for condensing light, the reaction is methanol reforming hydrogen production reaction, the length of the reactor and the parabolic trough can be adjusted according to the reaction amount of methanol and steam, and the linear focusing condenser can adopt a double-shaft or single-shaft tracker form. The reactants enter a baffling type reactor and then undergo photothermal reaction, so that hydrogen and carbon dioxide can be generated, and the conversion efficiency of methanol is over 99 percent.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The integrated parabolic trough type baffling type photo-thermal synergistic reaction device is characterized by comprising a parabolic trough type condenser (1) and a baffling type photo-thermal synergistic reactor (2), wherein the baffling type photo-thermal synergistic reactor (2) is located on a focal line of the parabolic trough type condenser (1) during working, and the baffling type photo-thermal synergistic reactor (2) moves along with the change of the focal line of the parabolic trough type condenser (1);
the baffled photothermal synergistic reactor (2) comprises a quartz shell (4), a reactant inlet (3) and a reactant outlet (8) are respectively arranged at two ends of the quartz shell (4), a catalytic bed (6) is placed inside the quartz shell (4), baffle plates (7) are vertically arranged between the catalytic bed (6) and the quartz shell (4), and the catalytic bed (6) is located on a focal line of the parabolic trough type condenser (1).
2. The integrated parabolic trough baffled photothermal synergistic reaction device according to claim 1, wherein the outer side of the quartz shell (4) is provided with a vacuum interlayer (5) along the surface.
3. The integrated parabolic trough type baffled photothermal synergistic reaction device as claimed in claim 1, wherein an antireflection film is arranged on the surface of the quartz shell (4), and the light transmittance of the antireflection film is greater than 97%.
4. The integrated parabolic trough baffled photothermal synergistic reaction device according to claim 1, wherein the catalytic bed (6) comprises a photothermal synergistic catalyst loaded with plasmon metal and a matrix material, and is used for performing full spectrum absorption of sunlight and performing photothermal synergistic catalytic reaction on gas-phase reactants by using thermal-photoelectron-thermoelectrons converted from sunlight.
5. The integrated parabolic trough baffled photothermal synergistic reaction device according to claim 1, wherein the catalytic bed (6) is of a porous structure and is arranged along the focal line direction; the porous structure is used for ensuring that gas phase/liquid phase reactants enter the reactor from the reactant inlet (3) and are blocked by the baffle plate (7) to repeatedly pass through the catalytic bed (6) and flow out from the reactant outlet (8).
6. The photothermal co-reaction device of the integrated parabolic trough type deflection type as claimed in claim 1, wherein the catalytic bed (6) and the deflector (7) are in close contact to form a blocking of the fluid flowing along the focal line direction and a deflection guide in the direction perpendicular to the focal line direction.
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| CN202110356465.0A CN113124575B (en) | 2021-04-01 | 2021-04-01 | Parabolic trough type baffling type integrated photo-thermal synergistic reaction device |
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| CN113578209A (en) * | 2021-08-19 | 2021-11-02 | 西安交通大学 | Magnetic confinement solar photo-thermal complementary fluidized bed reactor capable of continuously operating day and night |
| CN114505028A (en) * | 2022-02-16 | 2022-05-17 | 佛山仙湖实验室 | Porous thermal reactor and integrated parabolic trough type solar thermochemical reaction device |
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| JPS55500862A (en) * | 1978-11-03 | 1980-10-30 | ||
| JPS6091101A (en) * | 1983-10-24 | 1985-05-22 | 株式会社神戸製鋼所 | Steam generator |
| SU1456715A1 (en) * | 1987-04-15 | 1989-02-07 | Среднеазиатский Филиал Всесоюзного Научно-Исследовательского Института Использования Газа В Народном Хозяйстве И Подземного Хранения Нефти, Нефтепродуктов И Сжиженных Газов | Solar power concentrator |
| JPH05306838A (en) * | 1990-05-10 | 1993-11-19 | Toshiba Corp | Light collecting heat collecting device and fuel cell generating device |
| US8441361B2 (en) * | 2010-02-13 | 2013-05-14 | Mcallister Technologies, Llc | Methods and apparatuses for detection of properties of fluid conveyance systems |
| KR101067922B1 (en) * | 2010-03-03 | 2011-09-26 | 인하대학교 산학협력단 | Absorber of solar radiation |
| JP5780263B2 (en) * | 2013-05-28 | 2015-09-16 | 株式会社豊田自動織機 | Chemical heat storage device |
| CN107965929A (en) * | 2017-11-09 | 2018-04-27 | 武汉大学 | A kind of groove type solar heat collector of variable focusing ratio |
| CN108759120B (en) * | 2018-04-28 | 2021-04-06 | 中国科学院工程热物理研究所 | Photochemical and thermochemical combined energy storage device |
| CN108854897B (en) * | 2018-06-22 | 2020-01-14 | 西安交通大学 | Phase-change heat storage type solar thermochemical reaction device |
| CN208843725U (en) * | 2018-08-24 | 2019-05-10 | 宁波吉宏醇氢动力技术有限公司 | Catalytic unit and cracker |
| CN208814654U (en) * | 2018-09-08 | 2019-05-03 | 郑州网知汇信息科技有限公司 | A kind of novel ethyl alcohol low-temperature reformate device for producing hydrogen |
| CN211056709U (en) * | 2019-09-30 | 2020-07-21 | 云南师范大学 | Solar methanol steam reforming hydrogen production focusing reactor |
| CN211503301U (en) * | 2019-11-14 | 2020-09-15 | 佛山光腾新能源股份有限公司 | Low-energy-consumption methanol catalytic heating |
| CN212158248U (en) * | 2020-04-27 | 2020-12-15 | 北京燕东兆阳新能源科技有限公司 | Methanol flameless heating reactor |
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