CN107938956B - Pipeline type skylight system with self-cleaning inside - Google Patents
Pipeline type skylight system with self-cleaning inside Download PDFInfo
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- CN107938956B CN107938956B CN201711321743.9A CN201711321743A CN107938956B CN 107938956 B CN107938956 B CN 107938956B CN 201711321743 A CN201711321743 A CN 201711321743A CN 107938956 B CN107938956 B CN 107938956B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 17
- 239000011941 photocatalyst Substances 0.000 claims abstract description 32
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 26
- 230000005855 radiation Effects 0.000 claims description 19
- 230000009977 dual effect Effects 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 230000009545 invasion Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000004887 air purification Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000011368 organic material Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 239000008358 core component Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000006552 photochemical reaction Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/03—Sky-lights; Domes; Ventilating sky-lights
- E04D13/035—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/007—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Structural Engineering (AREA)
- Toxicology (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Biomedical Technology (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses an internal self-cleaning pipeline type skylight system, which comprises a double-frequency light pipe, a light collector, an ultraviolet light shield, a rainproof buckle plate, an ultraviolet light shielding plate, a photocatalyst coating and a diffuser, wherein the light collector is arranged at the top end of the double-frequency light pipe, the ultraviolet light shield can allow ultraviolet light to penetrate and is arranged on the rainproof buckle plate, the double-frequency light pipe is provided with an invisible light leakage window which can allow ultraviolet light to penetrate, the invisible light leakage window is adjacent to the ultraviolet light shield in position, the movable ultraviolet light shielding plate is arranged near the ultraviolet light shield, and the photocatalyst coating is positioned on the surface or inside of the double-frequency light pipe. The structure ensures that ultraviolet rays enter the inside of the double-frequency light guide tube in a controllable state and are contacted with the photocatalyst coating to generate an ion group while the visible light conduction mode and the efficiency are not influenced, and the harmful substances contained in the air inside the double-frequency light guide tube are decomposed, so that the corrosion invasion of the harmful substances in the air inside the double-frequency light guide tube to the inner wall of the double-frequency light guide tube is eliminated, and the service life of the system is prolonged.
Description
Technical Field
The invention belongs to the technical field of natural light illumination, and particularly relates to a pipeline type skylight system capable of self-cleaning the interior of the pipeline type skylight system.
Background
The use of a ducted skylight system to direct sunlight from outside to inside is a popular technique. The core component of prior art ducted skylight systems is a metal light pipe. The metal light pipe in the prior art is composed of a mirror surface material with single material and high reflectivity (> 95%) on the inner wall, and the material is generally a mirror surface aluminum pipe with the thickness of <1 mm. One end of the light pipe is placed outdoors and the other end is placed indoors. The outdoor sunlight irradiates into one end of the light pipe outside, and enters the room to achieve the lighting effect through multiple reflections inside the light pipe.
As shown in fig. 1. The light pipe 1 is covered at one end outside with a light collector 3, and at one end inside with a diffuser 8. The light pipe 1 passes through the floor slab 12 through the building structure well 11 into the room, and is placed outdoors at one end and is placed indoors at the other end. The outdoor sunlight irradiates one end of the outdoor device, and enters the room to achieve the lighting effect through multiple reflections inside the light pipe.
The core component of the tube skylight system is a light pipe with high specular reflectivity of the inner wall. The high inner wall specular reflectivity of the light pipe results in high light guiding efficiency of the whole system, and conversely, low light guiding efficiency. Therefore, in order to ensure that the light guiding efficiency of the overall system is maintained at a high level for several years (25-30 years) after installation, it is necessary to maintain the surface of the inner wall mirror in an initially intact state. This requires that those factors that may cause the initial state change must be eliminated, the most important of which is the corrosive effect of the inorganic and organic contaminant particles contained in the air in the light pipe on the mirror surface. How to avoid the corrosion of the mirror surface by pollutants within 20-30 years is a difficult problem in the industry. This is because the light pipe of the ducted skylight system is not completely isolated from the outdoor air, but rather a gap is left for air convection. The presence of this gap is necessary. If no gap exists, air in the light pipe body and outside air cannot be convected, condensed water vapor formed by the temperature difference between the inside and the outside of the light pipe body cannot be dispersed, corrosion to the inner wall of the mirror surface of the light pipe can be aggravated, the water drops can be attached to the inner wall of the light collector, visible light is shielded, and the system efficiency is further reduced. Thus, there is a pair of contradictions that: the air in the light pipe must be circulated with the outside and exposed to the outdoor environment, and must be kept clean. Because the outside air is filled with acid-base pollutants, the contradiction can not be solved at present, and the service life of the pipeline type skylight system is reduced, and the light guide efficiency is reduced.
One idea for solving the problems is to provide a photocatalyst coating inside the light pipe. However, one of the remarkable characteristics of the photocatalyst is high sensitivity to ultraviolet rays and low sensitivity to visible light. When the photocatalyst coating in the light pipe contacts ultraviolet rays in sunlight, the photocatalyst coating can release charged particle groups to decompose organic and inorganic suspended pollutants in the air in the light pipe, so that the air purifying effect is achieved. However, in the technical regulations of light pipe lighting system, JGJ/T374-2015, the material of the light collector is required to be organic glass or glass material with ultraviolet transmittance less than 1%. This means that the ultraviolet rays which can enter the light guide through the light collector are very limited, and the effect of sufficiently purifying the air by the photocatalyst cannot be achieved.
Therefore, the invention aims to solve the problem of how to fully utilize and control ultraviolet rays, irradiate the photocatalyst coating in the light pipe and achieve the purpose of purifying the internal air without affecting the lighting function of the light collector and the light conduction function of the light pipe.
There is a description in the art of methods for providing a more adequate solar intake for a light-guided lighting system. A typical prior art is given in fig. 2, chinese patent application No. cn200720103522.X, which proposes a solar light pipe device using a non-imaging concentrator, comprising a light transmission device, a non-imaging concentrator, a light pipe and a light scattering device. The non-imaging condenser is arranged outside the roof, and is designed as a three-dimensional small condenser and is tightly connected with the light pipe body. The non-imaging condenser is arranged outside the roof, the size of the mounting hole in the roof is not increased, and the light pipe arrangement form is flexible and various. The prior art only changes the form of the light collecting device at the overground part, and gathers more sunlight into the system, but the problem to be solved in the prior art cannot be solved, namely: the light transmission device can only transmit visible light, and can not control the passing of ultraviolet rays, so that the air in the pipeline can not be purified by the ultraviolet rays. Even if the light transmission device is made of a material that can transmit ultraviolet light, two problems still exist: firstly, the control requirement of ultraviolet ray intake by JGJ/T374-2015 of Chinese industry standard light pipe lighting system technical regulations is not met; secondly, no photocatalyst is arranged in the light pipe, so that even if ultraviolet rays enter, the air purification effect cannot be achieved.
Another similar recent prior art is shown in fig. 3. Chinese patent CN1680757a discloses an air purification technique using light. In this technique, air cleaning occurs at the end of the system light path, i.e., the lower surface of the room diffuser. The technology is characterized in that a photocatalyst layer for air purification is coated on the outer side surface of a diffuser at the end of a light channel, which contacts indoor air, so that the indoor air purification is realized by utilizing sunlight led in by a light guide pipe. The technology cannot solve the problem of air purification inside the light pipe.
Disclosure of Invention
The invention aims to provide a new design of an internal self-cleaning pipeline skylight system, which can solve the two contradiction problems at the same time. Firstly, air in the light pipe must circulate with the outside and must keep a clean state; secondly, the visible light lighting function of a light collector and the light conduction function of a light pipe in the light pipe system in the prior art are not affected, ultraviolet rays are utilized and controlled, and the photocatalyst coating inside the light pipe is irradiated, so that the aim of purifying the air inside the light pipe is fulfilled.
In order to solve the problems, the invention provides an internal self-cleaning pipeline type skylight system, which comprises a double-frequency light pipe 2, a light collector 3, an ultraviolet light cover 4, a rainproof buckle plate 5, an ultraviolet light shielding plate 9, a photocatalyst coating 7 and a diffuser 8, wherein the ultraviolet light cover 4 is arranged on the rainproof buckle plate 5, the photocatalyst coating 7 is arranged inside or outside the double-frequency light pipe 2, and an invisible light leakage window 6 which is corresponding to the ultraviolet light cover 4 and transmits ultraviolet light is also arranged on the double-frequency light pipe 2.
Further, the rainproof buckle plate 5 is provided with a central hole 14 of the rainproof buckle plate and an ultraviolet opening 31.
Further, the top opening of the double-frequency light pipe 2 is communicated with the center hole 14 of the rainproof buckle plate; the light collector 3 is arranged above the center hole 14 of the rainproof buckle plate.
Further, the ultraviolet light shield 4 is disposed at the ultraviolet opening 31.
Further, an ultraviolet shielding plate 9 in a manual control mode or an automatic control mode is installed along the edge of the ultraviolet light cover 4.
Further, the photocatalyst coating 7 is located on the inner surface or the outer surface of the dual-frequency light pipe 2 or the inner space of the dual-frequency light pipe 2.
Further, the diffuser 8 is installed at the bottom end of the dual-frequency light pipe 2, and the diffuser 8 is provided with an ultraviolet generator 10 for emitting electromagnetic waves in the outdoor direction.
Further, when the system is installed in the northern hemisphere of the earth, the invisible light window 6 is arranged to face the south; the invisible light leak window 6 is arranged to face north when the system is installed in the southern hemisphere of the earth.
Further, the position of the invisible light leakage window 6 mounted on the double-frequency light pipe 2 is set to be rotated along with the sun so as to keep the invisible light leakage window 6 tracking the sun.
Further, the ultraviolet light shield 4 is one or more cubes or curved surfaces and is configured to receive solar radiation from 360 degrees of solar azimuth, so as to maintain the ultraviolet light shield 4 to receive ultraviolet radiation during any season.
Further, the invisible light window 6 is disposed at one end of the dual-frequency light pipe 2 near the outside.
Further, the diffuser 8 is a planar or curved three-dimensional shape with or without holes.
Further, the invisible light leakage window 6 on the dual-frequency light pipe 2 is covered by a light-transmitting material.
Further, the light-transmitting material covering the invisible light-leakage window 6 is configured to filter and selectively pass light of different frequency bands.
Further, a photocatalyst layer is arranged on the light-transmitting material covering the invisible light leakage window 6.
Compared with the prior art, the invention has the advantages that: after the system is installed, the visible light wave band and the ultraviolet wave band in the direct sunlight enter the double-frequency light guide tube of the pipeline skylight system through respective paths. The visible light enters the double-frequency light pipe through the light collector; ultraviolet light enters the double-frequency light pipe through the ultraviolet light shield and the invisible light leakage window, and then the photocatalyst coating is combined to achieve the purpose of purifying the air in the double-frequency light pipe. The ultraviolet light enters the inside of the double-frequency light guide tube in a controllable state and contacts with the photocatalyst coating to generate an ion group, and harmful substances contained in the air inside the double-frequency light guide tube are decomposed, so that corrosion and invasion of harmful substances in the air inside the double-frequency light guide tube to the inner wall of the double-frequency light guide tube are eliminated, and the service life of the system is prolonged.
Drawings
Fig. 1 is a schematic illustration of a typical prior art tube skylight system.
Fig. 2 is a prior art with condenser structure and its working principle.
FIG. 3 is a prior art technique for purifying air outside a light pipe.
Fig. 4 is a schematic structural view of embodiment 1 of the present invention.
FIG. 5 is a schematic illustration of the positional relationship of the dual-frequency light pipe, the center hole of the rain-proof pinch plate and the light collector.
FIG. 6 is a schematic diagram showing the coplanar relationship of the normal line of the center point of the ultraviolet light shield, the normal line of the center point of the invisible light leakage window and the center normal line of the top section of the dual-frequency light guide tube.
Fig. 7 is a schematic diagram of the operation of example 1.
Fig. 8 is a first ultraviolet light shield design that receives solar ultraviolet radiation in 360 degrees and all directions.
Fig. 9 is a second ultraviolet mask design that receives solar ultraviolet radiation in 360 degrees all directions.
Fig. 10 is a structural and operational schematic diagram of embodiment 2 of the present invention.
Fig. 11 is a schematic structural view of embodiment 3 of the present invention.
Fig. 12 is a schematic structural view of embodiment 4 of the present invention.
Marking: 1. the light source comprises a common light pipe, 2, a double-frequency light pipe, 3, a light collector, 4, an ultraviolet light cover, 5, a rainproof buckle plate, 6, an invisible light window, 7, a photocatalyst coating, 8, a diffuser, 9, an ultraviolet light shielding plate, 10, an ultraviolet generator, 11, a building structure well, 12, a floor slab, 13, a window cover plate, 14, a rainproof buckle plate central hole, 15, a first light beam, 16, a second light beam, 17, a transverse platform, 18, a columnar central axis of the double-frequency light pipe, 19, a central axis of the light collector, 20, a normal line passing through the center of the center hole of the rainproof buckle plate, 21, a normal line passing through the center point of the ultraviolet light cover, 22, a normal line passing through the center point of the invisible light window, 23, a columnar central axis containing the double-frequency light pipe, a normal line passing through the center point of the invisible light cover, a plane passing through the center point of the invisible light window, 24, a double-frequency light pipe containing the invisible light window, 25, a bearing one, 26, a bearing two, 27, a gear set, 28, a sensor, 29, a motor controller, 30 and an ultraviolet light hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description of the structure and working principle of the present invention will be further described in detail with reference to the accompanying drawings 1-12.
Example 1
As shown in fig. 4, the structure and operation principle of the present invention are as follows. The invention comprises the following steps: the double-frequency light pipe 2, the light collector 3, the ultraviolet light shield 4, the rain-proof buckle plate 5, the invisible light window 6, the photocatalyst coating 7, the diffuser 8, the ultraviolet light shielding plate 9 and the window cover piece 13. In the embodiment, the dual-frequency light pipe 2 is in a cylindrical shape, and adopts a cylinder or a square cylinder; the rainproof buckle plate 5 is provided with a rainproof buckle plate central hole 14 and an ultraviolet opening 31, the rainproof buckle plate 5 is in a plane shape, and the rainproof buckle plate central hole 14 is positioned at the central part of the rainproof buckle plate; the ultraviolet light shield 4 is a transparent body with thickness, in particular to a transparent body for ultraviolet rays to pass through; the uv-mask 4 is positioned on the gusset 5 except for the central aperture 14 of the gusset, in this embodiment in the form of one or more cubes or curved surfaces, and is configured to receive solar radiation from 360 degrees of solar azimuth to keep the uv-mask from receiving uv radiation during any season.
The top edge of the double-frequency light pipe 2 is arranged at the periphery of the center hole 14 of the rainproof buckle plate; the light collector 3 is a plane or curved surface cover with light transmission performance; the light collector 3 is arranged above the center hole 14 of the rain-proof pinch plate and covers the center hole completely or partially; the light collector 3 is installed above the top end of the dual-frequency light pipe 2.
The best positional relationship among the dual-frequency light pipe 2, the light collector 3 and the ultraviolet light shield 4 will be described below, and in this embodiment, the columnar central axis 18 of the dual-frequency light pipe, the central axis 19 of the light collector and the normal line 20 passing through the center of the center hole of the rainproof buckle are three-in-one. In fig. 5, a schematic diagram of the positional relationship between the columnar central axis 18 of the dual-frequency light pipe, the central axis 19 of the light collector and the normal line 20 of the center hole of the rainproof buckle plate is shown, and the three are overlapped as can be seen from fig. 5.
The three lines are on the same plane and are in the optimal position relationship in the layout of the embodiment, wherein the three lines pass through the normal line 21 of the center point of the ultraviolet light shield, the normal line 22 of the center point of the invisible light leakage window and the center normal line of the horizontal plane where the top end of the double-frequency light guide pipe is positioned, namely the columnar central axis 18 of the double-frequency light guide pipe. In fig. 6, a schematic view is given that the columnar central axis 18 of the dual-frequency light pipe, the normal line 21 passing through the central point of the ultraviolet light shield, and the normal line 22 passing through the central point of the invisible light leakage window are located on the same plane. As can be seen, all three lie in space on a plane 23 and are therefore in a coplanar relationship.
Meanwhile, in the embodiment, the positions between the ultraviolet light shield 4 and the invisible light leakage window 6 are set so that solar rays can sequentially pass through under a direct light path, specifically, solar rays with an included angle of 20-70 degrees with the horizontal plane sequentially pass through the ultraviolet light shield and the invisible light leakage window in a direct light path mode and enter the double-frequency light guide tube.
As shown in fig. 4, embodiment 1 of the present invention is installed on a building structure well 11. The system comprises a double-frequency light pipe 2 penetrating through a floor slab 12 and entering a room, and a diffuser 8 arranged at the bottom end of the double-frequency light pipe 2 and fixed on the floor slab 12, wherein the diffuser has a plane or curved three-dimensional shape with or without holes.
As shown in fig. 4, the dual-frequency light pipe 2 is a pipe body made of a reflective material mostly, and an invisible light leakage window 6 through which ultraviolet light is transmitted is provided only near the top end, and is provided at one end of the dual-frequency light pipe near the outside. In this embodiment, the invisible light leakage window is covered by a leakage window covering sheet 13 made of a transparent material, and the material composition of the invisible light leakage window is different from that of the main body material of the dual-frequency light pipe 2. Moreover, the functions of the main body materials of the window covering piece 13 and the double-frequency light pipe 2 are also quite different; namely: the former is responsible for allowing light to project through; the latter is responsible for allowing light to travel by reflection. In this embodiment, a photocatalyst layer is further provided on the light-transmitting material covering the invisible light leakage window 6.
As shown in fig. 4, the top end of the dual-frequency light pipe 2 is provided with a light collector 3 in this embodiment. The material of the light collector 3 is typically an organic material, which has three main functions: firstly, preventing outdoor rain and snow water from entering the double-frequency light pipe 2; secondly, air convection is formed through a gap between the double-frequency light pipe 2 and the double-frequency light pipe 2, so that water vapor possibly generated by condensation in the double-frequency light pipe 2 is eliminated; thirdly, sunlight in the visible light wave band enters the double-frequency light pipe 2 while isolating outdoor ultraviolet rays.
As shown in fig. 4, a rain-proof pinch plate 5 to which the ultraviolet light shield 4 is mounted is provided on the building structure well 11.A center hole 14 of the rain-proof buckle plate is arranged in the center of the rain-proof buckle plate 5. The double-frequency light pipe 2 and the light collector 3 are both arranged on the rainproof buckle plate 5. The light collector 3 buckles the center hole 14 of the rain-proof buckle plate and ensures that outdoor rain and snow water cannot fall into the hole. The ultraviolet light shield 4 is arranged on the rain-proof pinch plate 5. The main body part of the rainproof buckle plate 5 except the ultraviolet light shield 4 is made of a material which can not transmit ultraviolet light, and can be seamlessly combined with the light collector 3 made of the same material into a whole to be sealed and waterproof. The rain-proof buckle plate 5 provided with the ultraviolet light shield 4 has three main functions: firstly, the opening of the building structure well 11 is sealed to prevent outdoor rain, snow and water from entering the room; secondly, allowing natural light containing ultraviolet rays to enter the inner space of the building structure well 11; thirdly, the weight of the double-frequency light pipe 2 and the light collector 3 is supported, and the whole system is fixed on a building structure well 11.
Since the light collector 3 allows solar electromagnetic waves in the visible light band to enter the dual-frequency light guide tube 2, and the window-leakage cover sheet 13 allows solar electromagnetic waves outside the visible light band to enter the dual-frequency light guide tube 2, the dual-frequency light guide tube 2 can at least conduct solar electromagnetic waves in two bands, namely: electromagnetic waves in the visible range and electromagnetic waves in the ultraviolet range.
As shown in fig. 4, the position of the ultraviolet light shield 4 is set to correspond to the position of the invisible light leakage window 6 on the double-frequency light pipe 2, and both are installed toward the south (assuming that the present embodiment is installed in the northern hemisphere of the earth). In the embodiment shown in fig. 4, a photocatalyst coating 7 is provided inside the dual-frequency light pipe 2, and a movable ultraviolet shutter 9 is provided at a position adjacent to the ultraviolet light cover 4, and in this embodiment, the ultraviolet shutter 9 is set in a manual control mode or an automatic control mode.
For example, in the period of strong sunlight in summer, the position of the ultraviolet light shielding plate 9 made of organic glass material can be automatically or manually set to the extent that the ultraviolet light shielding plate can shield most of the area of the ultraviolet light shielding plate 4, so as to achieve the purpose of reducing the intake of ultraviolet light; and in winter, the operation can be reversed, so that more ultraviolet rays enter the system. The photocatalyst coating is arranged on the surface of the double-frequency light pipe or the inner space of the double-frequency light pipe, particularly on the inner wall surface or the outer wall surface of the double-frequency light pipe 2, and can also be arranged in the inner space of the double-frequency light pipe 2, for example, in a hanging mode, so that the ultraviolet light can be contacted with the photocatalyst coating.
Fig. 7 explains the operation principle of embodiment 1 in detail. As shown in fig. 7, sunlight irradiates the ultraviolet light shield 4 with a beam 15 (including ultraviolet frequency band) formed at an angle of 50 degrees to the horizontal plane, and penetrates the ultraviolet light shield 4 into the inner space of the building structure well 11; the first light beam 15 then proceeds and passes through the window covering sheet 13 and enters the dual-frequency light pipe 2 through the invisible window 6. The first light beam 15 containing ultraviolet rays enters the dual-frequency light pipe 2 and then directly irradiates (or after multiple reflections) the photocatalyst coating 7, and generates photochemical reaction to release charged particle groups so as to purify the air in the dual-frequency light pipe 2. Since the material of the diffuser 8 may be an organic material having an ultraviolet blocking rate close to 100%, the ultraviolet rays in the first light beam 15 cannot enter the room, so that ultraviolet radiation harmful to human body is not generated to the indoor environment. At the same time, the light in the sunlight passes through the light collector 3 in the form of the second light beam 16 and enters the dual-frequency light guide tube 2. The material of the light collector 3 can be organic glass with the ultraviolet blocking rate close to 100%, ultraviolet frequency bands in the second light beam 16 formed by sunlight are blocked, visible light can enter freely at 100%, and after multiple reflections, the visible light finally passes through the diffuser 8 and enters the room, so that the illumination effect is achieved. In the period of strong sunlight in summer, the position of the ultraviolet light shielding plate 9 made of organic glass material can be automatically or manually set to the degree that the ultraviolet light shielding plate can shield most of the area of the ultraviolet light shielding plate 4, so that the purpose of reducing the intake of ultraviolet light is achieved; and in winter, the operation can be reversed, so that more ultraviolet rays enter the system.
It is particularly pointed out that when the system is mounted to the northern hemisphere of the earth and the invisible light window 6 is set to be southward, it does not have a reflection function itself, but does not affect the conduction of light in the visible light band in the sunlight entering from the light collector 3 within the dual-frequency light pipe 2. This is because the visible rays always enter the dual-frequency light guide 2 from the east side (morning), the south side (noon) or the west side (afternoon), and the portion of the interior of the dual-frequency light guide 2 near the north side of the tip (i.e., the position where the invisible light-leaking window 6 is provided in fig. 7) is always not directly irradiated with sunlight, regardless of the morning, noon or afternoon. Thus, in this region, part of the reflective material is removed, and the non-visible light window 6, which is transparent to light, is used instead, without affecting the intake and transmission of visible light. For another important component of natural light, namely sky-scattered light, because of its isotropic and sufficiently uniform properties, the intake reduction caused by the absence of reflective material at the location of the invisible light window 6 is compensated by the sky-scattered light penetrating the ultraviolet light shield 4 and entering the dual-frequency light guide 2, so that there is little loss.
In applications near the equatorial position, the position of the sun is switched between the north and south throughout the year. Therefore, in these cases, the dual-frequency light pipe 2 may be configured to rotate along with the sun direction to keep the invisible light window 6 tracking the sun direction, that is, the dual-frequency light pipe 2 is divided into a fixed part and a movable part, wherein the movable part includes the invisible light window 6, and the movable part may rotate. By using the design, the section of the double-frequency light pipe 2 containing the invisible light leakage window 6 is made to be connected with the rest sections in a bearing or hinge mode and is mechanically driven. Furthermore, the UV shield 4 may be configured to receive 360 degrees of omnidirectional solar radiation to maintain the UV shield 4 receiving UV radiation at any time. Fig. 8 and 9 illustrate two arrangements of the uv-mask 4 such that the system is able to receive 360 degrees of omnidirectional solar radiation to keep the uv-mask 4 and the underlying invisible light-leak window 6 from receiving uv radiation during any season.
In fig. 8, the middle of the rain-proof buckle 5 is a convex square body, a rain-proof buckle central hole 14 is formed above the square body, the rain-proof buckle central hole 14 is communicated with the dual-frequency light guide tube 2, the light collector 3 is buckled above the rain-proof buckle central hole 14, each side edge of the square body is provided with an ultraviolet opening 31, each ultraviolet opening 31 is correspondingly provided with an ultraviolet light shield 4, and the ultraviolet light shield 4 is covered or embedded at the ultraviolet opening 31.
In fig. 9, the main structure is similar to that of fig. 8, but the ultraviolet openings 31 are formed in the rain-proof buckle 5, the bottom of each square body is provided with an ultraviolet opening 31 corresponding to the rain-proof buckle on the side of each square body, each ultraviolet opening 31 is provided with an ultraviolet light cover 4 corresponding to each ultraviolet opening 31, and the ultraviolet light covers 4 are covered or embedded in the ultraviolet openings 31.
In summary, in this embodiment, the visible light band and the ultraviolet band in the direct sunlight enter the light pipe of the pipe type skylight system through respective paths, and on the premise of ensuring that the air in the light pipe circulates with the outside, the visible light lighting function of the light collector and the light conduction function of the light pipe in the light pipe system in the prior art are not affected, and the photocatalyst coating inside the light pipe is irradiated by ultraviolet rays, so that the purpose of purifying the inside air is achieved.
Example 2
Fig. 10 shows the structure and the operation principle of embodiment 2, and the overall structure is similar to that of embodiment 1. As shown in fig. 10, the main difference between embodiment 2 and embodiment 1 is that: first, the shape of the dual-frequency light pipe 2 includes a local lateral platform 17 located above the building structure well 11; second, the position of the invisible light leakage window 6 is changed from being vertically arranged on the double-frequency light pipe 2 to being horizontally arranged on the transverse platform 17. The working principle of example 2 is: the first light beam 15 (containing ultraviolet frequency band) irradiates the ultraviolet light shield 4 and penetrates the ultraviolet light shield 4 to enter an inner space formed by the combination of the building structure well 11 and the rainproof buckle plate 5; the first light beam 15 then proceeds and enters the inside of the dual-frequency light pipe 2 through the invisible light-leak window 6. The first sunlight beam 15 containing ultraviolet rays enters the double-frequency light pipe 2 and then directly irradiates the photocatalyst coating 7, and photochemical reaction is generated to release charged particle groups so as to purify the air in the light pipe.
Example 3
Fig. 11 shows the structure of embodiment 3, and the overall structure is similar to that of embodiment 1. As shown in fig. 11, the main difference between embodiment 3 and embodiment 1 is that a plurality of ultraviolet generators 10 emitting electromagnetic waves upward are mounted on the diffuser 8. The ultraviolet generator 10 is arranged to generate ultraviolet light only when the ultraviolet shutter 9 is in a position to completely block the ultraviolet mask 4. The purpose of the ultraviolet generator 10 is to supplement the space formed by the dual-frequency light pipe 2 and the building structure well 11 with additional ultraviolet radiation dose to enhance the operation of the excitation photocatalyst 7 and sterilize and purify the air under the following two conditions: firstly, when the ultraviolet radiation amount entering the system through the ultraviolet light cover 4 in natural light is insufficient due to long-term overcast days; secondly, when the ultraviolet shielding plate 9 is in a position of completely shielding the ultraviolet shielding plate 4 for a long time, the ultraviolet radiation amount entering the system through the ultraviolet shielding plate 4 in natural light is insufficient. Since the ultraviolet ray generator 10 is disposed to emit in the direction of the outside, and the entire system is in contact with the external space, three interfaces, namely: the light collector 3, the diffuser 8 and the ultraviolet shutter 9 are all made of an organic material having an ultraviolet blocking rate close to 100%, so that no ultraviolet radiation pollution is caused to any indoor and outdoor environments.
Example 4
Fig. 12 shows the structure of embodiment 4. As shown in fig. 12, the embodiment 4 contains a plurality of uv-light shields 4 and they are arranged to receive 360 degrees of all-round solar radiation, and the section 24 of the dual-frequency light pipe 2 containing the invisible light leakage window 6 is made to be bearing-fitted with the rest of the sections. Specifically, the dual-frequency light pipe 2 is divided into a fixed joint and a movable joint, the first bearing 25 is located at the upper end of the movable joint of the dual-frequency light pipe 2, the second bearing 26 is located at the lower end of the movable joint of the dual-frequency light pipe 2, the movable joint contains the invisible light window 6, the movable joint is connected with the fixed joint through the first bearing 25 and the second bearing 26, the gear set 27 and the sensor 28 are additionally arranged, and the controller 29 and the motor 30 drive the dual-frequency light pipe to rotate for one circle around the columnar central axis 18 of the dual-frequency light pipe within 24 hours, so that the tracking of direct sunlight is realized. Such a system is particularly useful in applications near the equatorial location. In these cases, the position of the sun is not always in the south or north, but is switched between the south and north in the four seasons, and especially in winter or in summer, the radiation climate is the phenomenon that the sun is in the north and south directions in the morning and evening respectively. Since the section 24 of the double-frequency light pipe 2, which is the movable section, of the invisible light window 6 in the embodiment can track the sun direction, the ultraviolet rays in the sunlight can be ensured to enter the double-frequency light pipe 2 no matter in the south or in the north, thereby solving the problems.
The invention is not limited to the embodiments discussed above. The above description of specific embodiments is intended to explain and illustrate the technical solutions to which the present invention relates. The embodiments described hereinabove are further intended to explain best modes known of practicing the invention and to enable others skilled in the art to utilize the invention in various embodiments and with various alternatives. Obvious variations or substitutions based on the teachings of the present invention should also be considered to fall within the scope of the present invention.
Claims (10)
1. The utility model provides an inside self-cleaning's pipeline formula skylight system, includes dual-frenquency light pipe (2), light collector (3), rain-proof buckle (5), diffuser (8), its characterized in that: the ultraviolet light source also comprises an ultraviolet light shield (4) and a photocatalyst coating (7); the ultraviolet light shield (4) is arranged on the rainproof buckle plate (5), a photocatalyst coating (7) is arranged inside or outside the double-frequency light guide tube (2), and an invisible light leakage window (6) which is corresponding to the ultraviolet light shield (4) and transmits ultraviolet rays is also arranged on the double-frequency light guide tube (2); the rainproof buckle plate (5) is provided with a central hole (14) of the rainproof buckle plate and an ultraviolet opening; the ultraviolet light shield (4) is arranged at an ultraviolet opening of the rainproof buckle plate (5); the ultraviolet light shield (4) is arranged at a part of the rainproof buckle plate (5) except for a central hole (14) of the rainproof buckle plate; the top opening of the double-frequency light pipe (2) is communicated with a center hole (14) of the rainproof buckle plate; the light collector (3) is arranged above the central hole (14) of the rainproof buckle plate; the ultraviolet light shield (4) is one or more cubes or curved surfaces and is arranged to keep the ultraviolet light shield capable of receiving ultraviolet radiation in any season; the diffuser (8) is arranged at the bottom end of the double-frequency light pipe (2); the columnar central axis (18) of the double-frequency light pipe (2), the central axis (19) of the light collector and the normal (20) passing through the center of the center hole (14) of the rainproof buckle plate are combined in a three-wire way; the columnar central axis (18) of the double-frequency light pipe (2), the normal (21) passing through the central point of the ultraviolet light shield and the normal (22) passing through the central point of the invisible light leakage window are positioned on the same plane; the invisible light leakage window (6) is arranged at one end, close to the outside, of the double-frequency light pipe (2); the positions between the ultraviolet light cover (4) and the invisible light window (6) are set to enable solar rays to sequentially pass through under a direct light path.
2. An interior self-cleaning ducted skylight system according to claim 1, wherein:
The rainproof buckle plate (5) is in a plane shape, and a center hole (14) of the rainproof buckle plate is positioned at the center part of the center hole;
The ultraviolet light shield (4) is arranged to receive solar radiation from 360 degrees of solar azimuth;
an ultraviolet light shielding plate (9) in a manual control mode or an automatic control mode is arranged along the edge of the ultraviolet light shield (4).
3. An interior self-cleaning ducted skylight system according to claim 1, wherein: the photocatalyst coating (7) is positioned on the inner surface or the outer surface of the double-frequency light pipe (2) or the inner space of the double-frequency light pipe (2).
4. An interior self-cleaning ducted skylight system according to claim 1, wherein: an ultraviolet generator (10) for emitting electromagnetic waves in the outdoor direction is provided on the diffuser (8).
5. An interior self-cleaning ducted skylight system according to claim 1, wherein: the invisible light window (6) is arranged to face south when the system is installed in the northern hemisphere of the earth; the invisible light window (6) is arranged to face north when the system is installed in the southern hemisphere of the earth.
6. An interior self-cleaning ducted skylight system according to claim 1, wherein: the position of the invisible light leakage window (6) arranged on the double-frequency light pipe (2) is set to be in a form of tracking the sun for rotation so as to keep the invisible light leakage window (6) tracking the sun.
7. A ducted skylight system with self-cleaning interior according to claim 1, characterized in that the diffuser (8) is a planar or curved three-dimensional shape with or without holes.
8. The interior self-cleaning ducted skylight system of claim 1, wherein the invisible light leaky window (6) on the dual frequency light pipe (2) is covered with a light transmissive material.
9. An internally self-cleaning ducted skylight system according to claim 7, characterized in that the light-transmitting material covering the invisible light leaky window (6) is arranged to filter and selectively pass light of different frequency bands.
10. A self-cleaning interior ducted skylight system according to claim 7, characterized in that a photocatalyst layer is provided on the light-transmitting material covering the invisible light-leaking window (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711321743.9A CN107938956B (en) | 2017-12-12 | 2017-12-12 | Pipeline type skylight system with self-cleaning inside |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711321743.9A CN107938956B (en) | 2017-12-12 | 2017-12-12 | Pipeline type skylight system with self-cleaning inside |
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| CN107938956B true CN107938956B (en) | 2024-05-17 |
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Citations (5)
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| CN1680757A (en) * | 2004-04-06 | 2005-10-12 | 北京工业大学 | Light conduit system for realizing light catalytic air purification and natural ventilation |
| JP2007167734A (en) * | 2005-12-20 | 2007-07-05 | Nikken Sekkei Ltd | Antibacterial, anti-mold, antifouling, and deodorizing method for interior by optical duct, and optical duct apparatus |
| TWM466221U (en) * | 2013-05-10 | 2013-11-21 | St Mary S Medicine Nursing And Man College | Green light pipe reactor |
| CN105927929A (en) * | 2016-05-24 | 2016-09-07 | 厦门市和奕华光电科技有限公司 | Novel natural light leading-in pipe device and installation method |
| CN207553456U (en) * | 2017-12-12 | 2018-06-29 | 烟台昕诺吉太阳能技术股份有限公司 | A kind of duct type retractable roof system of self |
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2017
- 2017-12-12 CN CN201711321743.9A patent/CN107938956B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1680757A (en) * | 2004-04-06 | 2005-10-12 | 北京工业大学 | Light conduit system for realizing light catalytic air purification and natural ventilation |
| JP2007167734A (en) * | 2005-12-20 | 2007-07-05 | Nikken Sekkei Ltd | Antibacterial, anti-mold, antifouling, and deodorizing method for interior by optical duct, and optical duct apparatus |
| TWM466221U (en) * | 2013-05-10 | 2013-11-21 | St Mary S Medicine Nursing And Man College | Green light pipe reactor |
| CN105927929A (en) * | 2016-05-24 | 2016-09-07 | 厦门市和奕华光电科技有限公司 | Novel natural light leading-in pipe device and installation method |
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| CN107938956A (en) | 2018-04-20 |
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