CN113466114A - Low-energy-consumption artificial climate aging device - Google Patents
Low-energy-consumption artificial climate aging device Download PDFInfo
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- CN113466114A CN113466114A CN202110597544.0A CN202110597544A CN113466114A CN 113466114 A CN113466114 A CN 113466114A CN 202110597544 A CN202110597544 A CN 202110597544A CN 113466114 A CN113466114 A CN 113466114A
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- 238000005265 energy consumption Methods 0.000 title claims abstract description 21
- 230000032683 aging Effects 0.000 title description 14
- 230000005855 radiation Effects 0.000 claims abstract description 49
- 230000003595 spectral effect Effects 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 239000000758 substrate Substances 0.000 claims description 14
- 238000005485 electric heating Methods 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 21
- 238000005286 illumination Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 5
- 229910052724 xenon Inorganic materials 0.000 description 5
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 5
- 238000005507 spraying Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 238000002211 ultraviolet spectrum Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/004—Investigating resistance of materials to the weather, to corrosion, or to light to light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/006—Solar simulators, e.g. for testing photovoltaic panels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Engineering & Computer Science (AREA)
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- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
本发明涉及一种低能耗人工气候老化装置，包括同轴设置的样品放置架和辐射源，样品放置架和辐射源呈倒置的半圆锥状，样品放置架和辐射源之间具有间隙，辐射源可转动的设于样品放置架内；所述辐射源包括转轴、支撑座和灯板，支撑座固定在转轴上，灯板设置在支撑座外侧面上；所述灯板包括基板和安装在基板上的LED光源；所述LED光源至少包括多个紫外LED灯，紫外LED灯包括具有不同波长的若干种，多个紫外LED灯形成近似于太阳辐射中的紫外线光谱成分；本发明的低能耗人工气候老化装置，结构简单，能耗低，使用寿命长，还可同时模拟多种试验环境，可有效降低检测成本。
The invention relates to a low-energy-consumption artificial weathering device, comprising a sample placement rack and a radiation source arranged coaxially, the sample placement rack and the radiation source are in the shape of an inverted half-cone, and there is a gap between the sample placement rack and the radiation source, and the radiation source The radiation source includes a rotating shaft, a support seat and a lamp board, the support base is fixed on the rotating shaft, and the lamp board is arranged on the outer side of the support base; the lamp board includes a base plate and a lamp plate installed on the base plate. The LED light source; the LED light source includes at least a plurality of ultraviolet LED lamps, the ultraviolet LED lamps include several types with different wavelengths, and the plurality of ultraviolet LED lamps form an ultraviolet spectral composition similar to that in solar radiation; the low-energy artificial The weathering device has the advantages of simple structure, low energy consumption, long service life, and can simulate various test environments at the same time, which can effectively reduce the detection cost.
Description
Technical Field
The invention belongs to the technical field of artificial climate aging equipment, and particularly relates to a low-energy-consumption artificial climate aging device.
Background
Light, heat, water and oxidation are several important factors that contribute to the aging of materials, and in order to evaluate the material properties, artificial weathering tests are generally used to evaluate the life of the material. The artificial weathering test is an artificial accelerated weathering test method for simulating and enhancing factors such as light, heat, humidity and rainfall in the atmospheric environment in a closed environment (such as a test chamber).
Research has shown that light is one of the most important factors leading to material aging; many of the objects to be studied in the artificial weathering test are polymer materials, and the deterioration of the properties of these materials is mainly caused by photochemical reactions induced by ultraviolet rays in solar radiation, and since other chemical reactions in the materials are greatly affected by temperature, temperature is also an important factor affecting the aging of the materials.
The wavelength causing the polymer material to be damaged in sunlight is mainly concentrated in ultraviolet rays and part of visible light. The artificial light sources used in the current artificial weathering test try to make the energy spectrum distribution in the wavelength interval close to the solar spectrum. At present, two artificial light sources, namely a xenon arc lamp light source and a fluorescent ultraviolet lamp light source, are mainly used in artificial climate aging tests in China, briefly, the spectrum (300 + 800 nm) of the xenon arc lamp light source is close to the spectrum of sunlight, the light energy and the temperature of a blackboard are easy to control, the artificial climate aging tests are one of laboratory light sources recommended by the international standards committee and the national standards committee at present, the high-end xenon arc lamp in China is mostly imported from Europe and America at present, and the artificial climate aging tests have the defects that a cooling system is required to be arranged to cool the xenon arc lamp, the service life of the xenon arc lamp is short, and the cost is relatively high. The fluorescent ultraviolet lamp light source (250-. With the development of the technology, at present, by adopting LED ultraviolet lamps with various wavelengths and partial common LEDs, a radiation source with spectral distribution closer to sunlight and better simulation can be formed, and in addition, if the switches and the illumination of the LED lamps with different wavelengths are respectively controlled, more irradiation modes can be realized.
In addition, the artificial climate aging box is also required to be provided with relatively complex systems for ventilation, temperature regulation, humidity regulation and the like, which also causes the defects of high cost, large volume and the like of the artificial climate aging box; moreover, the artificial weathering test often requires hundreds of hours or even thousands of hours, and a large amount of energy is consumed.
Disclosure of Invention
The invention aims to provide the artificial climate aging device which is simple in structure, low in energy consumption and long in service life.
It is another object of the present invention to provide an artificial weathering device that can provide multiple testing environments simultaneously.
In order to solve the technical problem, the invention discloses a low-energy-consumption artificial weathering device, which comprises a sample placing frame and a radiation source which are coaxially arranged, wherein the sample placing frame and the radiation source are in inverted semi-cone shapes, a gap is formed between the sample placing frame and the radiation source, and the radiation source is rotatably arranged in the sample placing frame;
the radiation source comprises a rotating shaft, a supporting seat and a lamp panel, the supporting seat is fixed on the rotating shaft, and the lamp panel is arranged on the outer side surface of the supporting seat;
the lamp panel comprises a substrate and an LED light source arranged on the substrate; the LED light source comprises at least a plurality of ultraviolet LED lamps, the ultraviolet LED lamps comprise a plurality of different wavelengths, and the plurality of ultraviolet LED lamps form ultraviolet spectrum components similar to solar radiation.
Preferably, a plurality of radiating fins are uniformly arranged on the outer side surface of the substrate in a radial shape.
Preferably, the height of the heat sink fins protruding from the base plate is not less than 1/20, which is the minimum gap distance between the sample holder and the radiation source.
Preferably, the LED light source further includes a non-ultraviolet type light emitting diode, and the plurality of ultraviolet LED lamps and the non-ultraviolet type light emitting diode form a spectral component more similar to solar radiation.
Preferably, the inner side of the sample placing rack is step-shaped, and when the inner side of the sample placing rack is provided with a plurality of steps, the steps are gradually close to the rotating shaft from top to bottom; the inclined plane of every step is parallel with the lamp plate, and the inclined plane of step forms the portion of placing that is used for placing and fixed sample.
Preferably, each layer of placing part of the sample placing rack is provided with an independently controlled electric heating temperature compensation device.
Preferably, each layer of placing part of the sample placing rack is provided with a temperature detection device.
Preferably, the sample placing rack is provided with a heat preservation material on the outer side.
Preferably, the sample placing rack is also at least provided with a spraying device.
Preferably, the substrate is an aluminum substrate or a flexible circuit board subjected to waterproof treatment.
The low-energy consumption artificial weathering device of the invention has at least the following advantages:
1. the structure is simple, the heating system, the air blast system and the cooling system in the common artificial climate aging device are simplified, and the rotating radiation source and the radiating fins solve the radiating problem of the light source; the radiating fins also play a certain role of fan blades, and only the rotating speed of the radiation source needs to be increased when strong wind needs to be simulated; the heat dissipated by the heat dissipation fins and the LED light source can provide stable local environment temperature for the sample.
2. Adopt the LED light source of low energy consumption, the life-span is longer to, because sample rack and radiation source are close to the setting for the LED light source adopts the less lamp pearl of power can realize required UV illuminance, the energy saving.
3. Placing the samples on different placing parts, wherein the UV illumination and the temperature of the samples are changed along with the change of the distance between the placing parts and the radiation source; the plurality of placing parts and the heating and temperature supplementing of the electric heating temperature compensation device can provide various UV illumination and temperature modes simultaneously; the control test of various environments can be carried out on a plurality of samples in one test, and the test result is more reliable.
4. When in use, the radiation source keeps rotating, and the effect of better simulating sunlight moving irradiation can be achieved.
Drawings
FIG. 1 is a schematic diagram of a low energy consumption artificial weathering apparatus;
fig. 2 is a schematic perspective view of the radiation source of fig. 1.
The reference numbers in the figures are: 1-sample placing frame, 11-step, 111-placing part, 12-electric heating temperature compensation device, 13-thermal insulation material, 14-spraying device, 2-radiation source, 21-rotating shaft, 22-supporting seat, 23-lamp plate, 231-substrate, 232-LED light source, 24-radiating fin and 3-gap.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," when used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-2, a low-energy consumption artificial weathering device comprises a sample placing rack 1 and a radiation source 2 which are coaxially arranged, wherein the sample placing rack and the radiation source are in inverted semi-conical shapes, a gap 3 is arranged between the sample placing rack and the radiation source, and the radiation source is rotatably arranged in the sample placing rack; sample rack and radiation source are the half cone setting of invering, and water flows down smoothly from the sample when conveniently spraying to make the heat that radiating fin gived off can be more upwards effluvium along the base plate surface, avoid producing great influence to the temperature of different portions of placing.
Have the clearance between sample rack and the radiation source, the setting in clearance is according to radiation source power, sample size etc. and is set up, but overall, the clearance width will be much less than ordinary artificial climate ageing device's fluorescent tube and sample distance, and less clearance width makes the LED light source adopt the less lamp pearl of power can realize required UV illuminance, the energy saving, in addition, because the less lamp pearl price of power is lower relatively, also can practice thrift the cost to a certain extent.
The radiation source comprises a rotating shaft 21, a supporting seat 22 and a lamp panel 23, the supporting seat is fixed on the rotating shaft, and the lamp panel is arranged on the outer side face of the supporting seat; the substrate is an aluminum substrate or a flexible circuit board which is subjected to waterproof treatment.
The lamp panel comprises a substrate 231 and an LED light source 232 arranged on the substrate; the LED light source comprises at least a plurality of ultraviolet LED lamps, the ultraviolet LED lamps comprise a plurality of different wavelengths, and the plurality of ultraviolet LED lamps form ultraviolet spectrum components similar to solar radiation.
A plurality of radiating fins 24 are radially and uniformly arranged on the outer side surface of the substrate. The radiating fins solve the radiating problem of the light source; besides, different from a common radiator, the heat radiating fins guide the heat to one side where the lamp beads are located, so that the heat emitted by the heat radiating fins can form one part of the test environment required by the sample, and the energy is saved. The fan also has the function of certain fan blades, and only the rotating speed of the radiation source needs to be increased when strong wind needs to be simulated or the radiation of the radiation source needs to be increased, so that an independent cooling system is not required to be arranged on the radiation source.
The height of the radiating fins protruding out of the base plate is not lower than 1/20 of the minimum gap distance between the sample placing frame and the radiation source, so that the radiating capacity of the radiating fins and the capacity of driving surrounding air are guaranteed, and when the height of the radiating fins and the rotating speed of the radiation source are determined, the wind speed on the placing portion corresponding to the local part of the radiating fins is also better determined (relative to an air blower).
The LED light source further comprises a non-ultraviolet type light emitting diode, and the plurality of ultraviolet LED lamps and the non-ultraviolet type light emitting diode form a spectral component which is more similar to solar radiation.
The inner side of the sample placing rack is step-shaped, and when the inner side of the sample placing rack is provided with a plurality of steps 11, the steps are gradually close to the rotating shaft from top to bottom; the inclined plane of every step is parallel with the lamp plate to guarantee that the UV illuminance that each part received on the same placing part is even, the inclined plane of step forms the placing part 111 that is used for placing and fixed sample. And each layer of placing part of the sample placing frame is provided with an independently controlled electric heating temperature compensation device 12. The inclined plane of each step is parallel to the lamp panel, so that the uniform UV illumination on each part on the same placing part can be ensured; placing the samples on different placing parts, wherein the UV illumination and the temperature of the samples are changed along with the change of the distance between the placing parts and the radiation source; the plurality of placing parts and the heating and temperature supplementing of the electric heating temperature compensation device can provide various UV illumination and temperature modes simultaneously; the control test of various environments can be carried out on a plurality of samples in one test, and the test result is more reliable.
Further, the LED light source can be arranged in different areas according to the different areas corresponding to the placing part, the spectrum composition, the illumination and the like of each area can be respectively controlled, and more test environments can be created.
All be equipped with temperature-detecting device (like blackboard or black mark etc.) on every layer of standing portion of sample rack, temperature-detecting (control) device is according to target temperature, and control electrical heating temperature compensation device carries out heating compensation, makes the temperature of standing portion reach the requirement. In addition, a humidifier, a humidity detection device, or the like may be separately provided.
The outer side of the sample placing frame is provided with a heat insulation material 13; the heat insulating material can prevent excessive heat loss and save energy.
The sample placing frame is at least provided with a spraying device 14. Spray set can locate on the portion of placing of the top layer, directly sprays the top layer portion of placing, makes water from last down runner each sample on, certainly, if the clearance width between sample rack and the radiation source is enough, also can set up the shower in the clearance, the shower edgewise sprays the sample, avoids the shower to cause the sample to shelter from.
Each placement section should indicate the base temperature (no heating compensation) and the UV illumination in the steady operating state. During the use, select corresponding portion of placing as required, set up required temperature, it is fixed with the sample subsides portion of placing to make the radiation source keep rotating, not only be favorable to illumination equipartition and heat dissipation like this, the removal effect of simulation illumination that can also be better. After the test of one stage is finished, the sample can be moved to another placing part by a manual or mechanical arm to finish other tests; multiple samples can be prevented simultaneously.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable to various fields of endeavor for which the invention may be embodied with additional modifications as would be readily apparent to those skilled in the art, and the invention is therefore not limited to the details given herein and to the embodiments shown and described without departing from the generic concept as defined by the claims and their equivalents.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110597544.0A CN113466114B (en) | 2021-05-31 | 2021-05-31 | Low energy consumption artificial climate aging device |
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| CN202110597544.0A CN113466114B (en) | 2021-05-31 | 2021-05-31 | Low energy consumption artificial climate aging device |
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