CN117028895A - Light guide lighting system with spectral spectrum regulation - Google Patents
Light guide lighting system with spectral spectrum regulation Download PDFInfo
- Publication number
- CN117028895A CN117028895A CN202311018078.1A CN202311018078A CN117028895A CN 117028895 A CN117028895 A CN 117028895A CN 202311018078 A CN202311018078 A CN 202311018078A CN 117028895 A CN117028895 A CN 117028895A
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- light guide
- light
- pipeline
- bearing container
- transparent bearing
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- 238000001228 spectrum Methods 0.000 title description 14
- 230000033228 biological regulation Effects 0.000 title description 6
- 230000003595 spectral effect Effects 0.000 title description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000012530 fluid Substances 0.000 claims abstract description 24
- 238000005286 illumination Methods 0.000 claims abstract description 21
- 238000005338 heat storage Methods 0.000 claims abstract description 12
- 239000002105 nanoparticle Substances 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 7
- SKRWFPLZQAAQSU-UHFFFAOYSA-N stibanylidynetin;hydrate Chemical compound O.[Sn].[Sb] SKRWFPLZQAAQSU-UHFFFAOYSA-N 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 239000002270 dispersing agent Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000003287 optical effect Effects 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S11/00—Non-electric lighting devices or systems using daylight
- F21S11/007—Non-electric lighting devices or systems using daylight characterised by the means for transmitting light into the interior of a building
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/12—Combinations of only three kinds of elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/30—Solar heat collectors using working fluids with means for exchanging heat between two or more working fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
- F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/20—Working fluids specially adapted for solar heat collectors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Photovoltaic Devices (AREA)
Abstract
A spectral-modulated light guide illumination system comprises a light guide system and a capacity system; the capacity system comprises a transparent bearing container, a pump, a nano fluid, a heat exchanger and a heat storage water tank; the shell side of the heat exchanger is connected with the transparent bearing container through a pipeline to form circulation, nano fluid is filled in the transparent bearing container and the pipeline, a pump is arranged on the pipeline, the heat exchanger is circulated with the heat storage water tank through the pipeline, a pump is arranged on the pipeline, the light guide system is arranged on a wall body, the light path inlet of the light guide system is arranged outdoors, the light path outlet of the light guide system is positioned indoors, and the transparent bearing container is positioned at the light path outlet of the light guide system. The nanofluid with unique optical properties is integrated in the light guide system, so that the passive energy-saving technology is converted into the active energy-producing technology, and the building load and the illumination energy consumption can be effectively reduced.
Description
Technical Field
The application relates to a building energy-saving technology, in particular to a light guide lighting system with spectrum regulation.
Background
Lighting is essential for any building, but the electrical lighting commonly used in various buildings at present consumes a lot of power, especially for underground spaces. The light pipe can be used as a substitute for electric illumination to provide efficient natural light illumination without consuming electric energy, but the light pipe has no spectral selectivity, and can negatively affect thermal comfort while meeting building light comfort.
As shown in fig. 1, the solar spectrum energy is mainly concentrated at 300-2500nm, in which visible light in the 380-780nm band accounts for only 43% of the total energy, and infrared rays having longer wavelengths occupy 52% of the total energy although they do not have a lighting function. In summer, the infrared energy introduced by the light pipe increases the building's cooling load. Therefore, in order to maximize the energy saving effect of the light guide, it is necessary to isolate the infrared band from the outside and to secure the transmittance of the visible light band. However, the existing infrared blocking technology mainly relies on surface coating to reflect infrared rays, thereby reducing infrared radiation entering the room. The method can naturally reduce the summer cold load, but has negative effect on heating of the building in winter, and can not be flexibly regulated and controlled according to the external environment change and the dynamic energy requirement of the building; in addition, the surface coating technology can only reflect radiation energy, and cannot further utilize the energy to realize building productivity.
Disclosure of Invention
The application provides a light guide illumination system with spectrum regulation and control for overcoming the defects in the prior art. The transparent bearing container, the nano fluid, the water pump, the heat exchanger and the heat storage water tank are combined into a capacity system or a nano fluid circulation system, and the transparent bearing container is arranged at an optical path outlet of the light guide system, so that solar spectrum filtration, and infrared radiation energy absorption and utilization are realized. By changing the concentration of the nanofluid, the photo-thermal energy output of the system is regulated, and the dynamic energy requirements of different buildings in different seasons/time periods are met.
A spectral-modulated light guide illumination system comprises a light guide system and a capacity system; the capacity system comprises a transparent bearing container, a pump, a nano fluid, a heat exchanger and a heat storage water tank;
the shell side of the heat exchanger is connected with the transparent bearing container through a pipeline to form circulation, nano fluid is filled in the transparent bearing container and the pipeline, a pump is arranged on the pipeline, the heat exchanger is circulated with the heat storage water tank through the pipeline, a pump is arranged on the pipeline, the light guide system is arranged on a wall body, the light path inlet of the light guide system is arranged outdoors, the light path outlet of the light guide system is positioned indoors, and the transparent bearing container is positioned at the light path outlet of the light guide system.
Further, the light guide system comprises a light collecting cover, a light pipe and a diffuser; the light pipe is arranged on the wall body, two ends of the light pipe are respectively arranged outdoors and indoors, the light collecting cover is arranged at an outdoor port of the light pipe, the diffuser is arranged at an indoor port of the light pipe, and the transparent bearing container is arranged on the upper portion of the diffuser.
Further, the transparent bearing container is made of ultra-white glass.
Further, the nano fluid is a mixed solution mainly formed by mixing nano particles, deionized water and a dispersing agent.
Further, the nanoparticles are antimony tin oxide particles.
Further, the light pipe is a circular pipe, and the inner wall is plated with a silver mirror.
Further, the light collecting cover is of a hemispherical structure.
Compared with the prior art, the application has the beneficial effects that:
compared with the traditional lighting equipment, the application has two main advantages:
1. according to the application, the nanofluid is combined with the light guide system, so that a more efficient cold light source can be provided, indoor heating is reduced, and the absorbed infrared energy is further utilized, so that the building productivity is realized;
2. the nano fluid can be adjusted in existence and concentration to adapt to the energy requirement of the building and the change of the outdoor environment, for example, the nano fluid can be removed in winter, the indoor heat environment is improved by utilizing solar radiation, or the concentration of the nano fluid is reduced in overcast days, and the light energy output is increased to meet the building requirement.
The technical scheme of the application is further described below with reference to the accompanying drawings and examples:
drawings
FIG. 1 is a solar spectral energy distribution diagram;
FIG. 2 is a schematic diagram of a light guide illumination system of the present application;
FIG. 3 is a schematic view of a light guide system of the present application;
FIG. 4 is a schematic diagram of a capacity system of the present application;
fig. 5 is a schematic diagram of nanofluidic filtration infrared light.
Detailed Description
Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. Unless otherwise defined, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
Referring to FIG. 2, a spectrally modulated light guide illumination system includes a light guide system A and a throughput system B; the capacity system C comprises a transparent bearing container 4, a pump 5, a nano fluid 6, a heat exchanger 7 and a heat storage water tank 8;
the shell side of the heat exchanger 7 is connected with the transparent bearing container 4 through a pipeline C to form circulation, nano fluid 6 is filled in the transparent bearing container 4 and the pipeline C, a pump 5 is arranged on the pipeline C, the heat exchanger 7 is circulated with the heat storage water tank 8 through a pipeline D, the pump 5 is arranged on the pipeline D, the light guide system A is arranged on a wall body, the light path inlet of the light guide system A is arranged outdoors, the light path outlet of the light guide system A is positioned indoors, and the transparent bearing container 4 is positioned at the light path outlet of the light guide system A.
By utilizing the unique optical properties of the nanofluid, infrared rays in the solar spectrum are absorbed and utilized, and the nanofluid flows in the pipeline C, the transparent bearing container 4 and the heat exchanger 7. In this process the nanofluid filters the infrared spectrum, the temperature increases and the indoor heat gain decreases. The high temperature nanofluid heats the hot water through the heat exchanger under the driving of the pump 5, and the temperature is lowered and then flows back into the carrying container. And the generated hot water is stored in the heat storage water tank 8, and can be used for heating or domestic hot water.
The capacity system B consisting of the transparent bearing container 4, the nano fluid 6, the pump 5, the heat exchanger 7 and the heat storage water tank 8 is also a nano fluid circulation system and is responsible for solar spectrum filtration and infrared energy absorption or utilization. The transparent bearing container 4 is arranged at the light path outlet of the light guide system A, so that the solar spectrum is filtered, and the infrared radiation energy is absorbed and utilized. By changing the concentration of the nanofluid, the light/heat energy output of the system is regulated, and the dynamic energy requirements of different buildings in different seasons and different time periods are met.
Embodiment 1, the light guiding system a comprises a light collecting cover 1, a light pipe 2 and a diffuser 3; the light pipe 2 is arranged on a wall body, two ends of the light pipe 2 are respectively arranged outdoors and indoors, the light collecting cover 1 is arranged at an outdoor port of the light pipe 2, the diffuser 3 is arranged at an indoor port of the light pipe 2, and the transparent bearing container 4 is arranged at the upper part of the diffuser 3. The light guide system assumes the function of illumination. The present embodiment uses reflection to direct outdoor light into the room.
More than half of the solar spectrum is invisible light, cannot provide illumination function, and can increase indoor heat, so that indoor thermal comfort is affected. The nano particles in the nano fluid have high absorption property to energy of invisible light mainly in an infrared band and high transmission property to visible light. The nanofluid with unique optical properties is combined with a light guide system, solar rays are collected by the light collecting cover 1, are conducted into a room through reflection in the light guide tube 2, are filtered into a high-efficiency cold light source by the nanofluid 6 in the transparent bearing container 4, and are uniformly dispersed into the room through the diffuser 3, so that the lighting function is realized, and the indoor heat is reduced. The temperature of the nanofluid absorbing the infrared energy can be increased, and the nanofluid flows to the heat exchanger 7 under the drive of the pump 5 to heat domestic hot water, so that the heat supply function is realized.
In embodiment 2, the transparent carrying container 4 is made of ultra-white glass. The transparent carrying container 4, which is composed of high transmittance ultra-white glass, is installed at the upper portion of the diffuser 3. The nanofluid 6 flows in the transparent carrier container 4.
The nano fluid 6 is mainly mixed liquid formed by mixing nano particles, deionized water and a dispersing agent. The nano particles in the nano fluid have higher absorptivity to infrared rays and lower absorptivity to visible light, so that the solar spectrum can be filtered.
Further, the nanoparticles are antimony tin oxide particles. To meet the requirements of photo-thermal decoupling, antimony Tin Oxide (ATO) nanoparticles are selected, typically with particle sizes between 10-100 nm. Deionized water is selected as the base liquid for cost reduction. In addition, in order to delay the agglomeration and sedimentation of the nano fluid and improve the stability of the fluid, a certain amount of dispersing agent (surfactant) is added into the system.
The heat exchanger 7 is responsible for heat exchange between the nanofluid and tap water. Because the nano fluid is more expensive (compared with tap water) and does not meet the safety requirement of domestic water, a closed system is selected, heat exchange between the nano fluid and the tap water is realized by using a heat exchanger, and then the tap water with high temperature is used as the domestic water or for heating.
The heat storage tank 8 is responsible for storing hot water, has good heat preservation performance, and can store hot water in the daytime for night use. The remainder was the same as in example 1.
In embodiment 3, the light pipe 2 is a circular pipe, and the inner wall is plated with a silver mirror.
The light collecting cover 1 is of a hemispherical structure.
The light collecting cover 1 and the diffuser 3 are both made of transparent plastic or glass. The light collecting cover 1 has a hemispherical structure, and can efficiently guide solar rays into the light guide tube and prevent outdoor rain, snow and dust from entering the room. The diffuser 3 is a plane with special textures, the texture of the surface being such that it directs the incident light more evenly into the room. The light pipe 2 is a section of circular tube made of high-reflectivity material, outdoor light is continuously reflected in the tube and conducted to the diffuser, the light pipe 2 can be a section of circular tube made of aluminum, and the inner wall of the light pipe 2 is plated with a silver mirror, so that the light pipe has extremely high reflectivity. The transparent carrying container 4, which is composed of high transmittance ultra-white glass, is installed at the upper portion of the diffuser 3. The remainder differ from examples 1 or 2.
Example 4, the diffuser 3 was made of a transparent material having a langerhans diffusion property, and light was uniformly diffused throughout the room. The solar rays can be efficiently guided into the light guide pipe 2 and outdoor rain, snow or dust is blocked from entering the room.
Alternatively, both the light collecting cover 1 and the diffuser 2 are made of polycarbonate. The remainder were the same as in any of examples 1, 2 or 3.
According to the embodiment or the example, the unique optical property of the nano particles is utilized, so that the spectrum regulation and the cascade utilization of the solar spectrum are realized, the illumination of the light guide system is not influenced, meanwhile, the domestic hot water is provided for the building, the indoor cold load (summer) is reduced, the energy requirements of multiple aspects of the building are met, and the energy consumption of the building is reduced in two aspects of capacity and energy conservation.
The application integrates the nanofluid with unique optical property into the light guide system, converts the passive energy-saving technology into the active energy-producing technology, improves the energy flexibility, can effectively reduce the building load and the illumination energy consumption, and has great significance for environmental protection and energy conservation. The spectral regulation and control productivity type light guide lighting system is suitable for ecological civilization construction in China, realizes efficient matching of sunlight spectrum and building energy requirements, and has good economic benefit and wide application prospect.
The present application has been described in terms of preferred embodiments, but is not limited to the application, and any equivalent embodiments can be made by those skilled in the art without departing from the scope of the application, as long as the equivalent embodiments are possible using the above-described structures and technical matters.
Claims (9)
1. A spectrally modulated light guide illumination system, characterized by: comprises a light guide system (A) and a capacity system (B); the productivity system (C) comprises a transparent bearing container (4), a pump (5), a nano fluid (6), a heat exchanger (7) and a heat storage water tank (8);
the shell side of the heat exchanger (7) is connected with the transparent bearing container (4) through the pipeline C to form circulation, the transparent bearing container (4) and the pipeline C are internally filled with nano fluid (6), the pipeline C is provided with the pump (5), the heat exchanger (7) is circulated with the heat storage water tank (8) through the pipeline D, the pipeline D is provided with the pump (5), the light guide system (A) is arranged on a wall body, the light path inlet of the light guide system (A) is arranged outdoors, the light path outlet of the light guide system (A) is positioned indoors, and the transparent bearing container (4) is positioned at the light path outlet of the light guide system (A).
2. A spectrally modulated light guide illumination system according to claim 1, characterized by: the light guide system (A) comprises a light collecting cover (1), a light guide pipe (2) and a diffuser (3); the light pipe (2) is arranged on a wall body, two ends of the light pipe (2) are respectively arranged outdoors and indoors, the light collecting cover (1) is arranged at an outdoor port of the light pipe (2), the diffuser (3) is arranged at an indoor port of the light pipe (2), and the transparent bearing container (4) is arranged on the upper portion of the diffuser (3).
3. A spectrally modulated light guide illumination system according to claim 1, characterized by: the transparent bearing container (4) is made of ultra-white glass.
4. A spectrally modulated light guide illumination system according to claim 1, characterized by: the nano fluid (6) is a mixed solution formed by mixing nano particles, deionized water and a dispersing agent.
5. A spectrally modulated light guide illumination system as in claim 4, wherein: the nano particles are antimony tin oxide particles.
6. A spectrally modulated light guide illumination system according to claim 2, characterized by: the light pipe (2) is a circular pipe, and the inner wall of the light pipe is plated with a silver mirror.
7. A spectrally modulated light guide illumination system according to claim 2, characterized by: the light collecting cover (1) is of a hemispherical structure.
8. A spectrally modulated light guide illumination system according to claim 2, characterized by: the light collecting cover (1) and the diffuser (3) are made of transparent plastic or glass.
9. The spectrally modulated light guide illumination system of claim 8, wherein: both the light collecting cover (1) and the diffuser (3) are made of polycarbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311018078.1A CN117028895A (en) | 2023-08-14 | 2023-08-14 | Light guide lighting system with spectral spectrum regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311018078.1A CN117028895A (en) | 2023-08-14 | 2023-08-14 | Light guide lighting system with spectral spectrum regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117028895A true CN117028895A (en) | 2023-11-10 |
Family
ID=88633241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311018078.1A Pending CN117028895A (en) | 2023-08-14 | 2023-08-14 | Light guide lighting system with spectral spectrum regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117028895A (en) |
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2023
- 2023-08-14 CN CN202311018078.1A patent/CN117028895A/en active Pending
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