CN215574754U - Measuring system for radiation characteristics of high-temperature material - Google Patents
Measuring system for radiation characteristics of high-temperature material Download PDFInfo
- Publication number
- CN215574754U CN215574754U CN202121356361.1U CN202121356361U CN215574754U CN 215574754 U CN215574754 U CN 215574754U CN 202121356361 U CN202121356361 U CN 202121356361U CN 215574754 U CN215574754 U CN 215574754U
- Authority
- CN
- China
- Prior art keywords
- laser
- heating
- base
- hole
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a measuring system for radiation characteristics of high-temperature materials, which comprises a shading box, a nitrogen gas bottle, an atmosphere chamber, a heating module and an emissivity measuring module, wherein the shading box is arranged in the middle of the shading box; the heating module comprises a heating seat, a bench, a carbon dioxide laser, a reflector, a condenser and a water cooler; the emissivity measuring module comprises a bicolor infrared thermometer, a blackbody furnace, a rotary mirror bracket, a collimating mirror, a Fourier infrared spectrometer and a calculating unit. The utility model can lead the sample to reach different temperatures by regulating and controlling the laser power, and can test the absorptivity of the material to solar radiation and the mid-infrared wavelength range at high temperature.
Description
Technical Field
The utility model relates to the technical field of supercritical carbon dioxide solar thermal power generation, in particular to a system for measuring radiation characteristics of a high-temperature material.
Background
Solar thermal power generation is the main way of solar thermal utilization. Solar energy is converted into heat energy of working media through the heat collector, thermal cycle power generation is driven, and the conversion process of the solar energy is realized. The solar heat collector is a very important component in a solar thermal power generation system, not only converts the radiation energy of the sun into heat energy, but also has great influence on the performance of the power generation system and the heat storage system. The solar heat collector mainly comprises a liquid heat collector, a gas heat collector and a solid particle heat collector, wherein the outlet temperature of the solid particle heat collector can reach more than 1000 ℃, the heat efficiency is high, and the supercritical CO heat collector is used for collecting heat in the supercritical state2Has wide application prospect in thermodynamic cycle. Since solid particles directly absorb solar energy, both the ability of the particles to absorb solar energy and the ability of the particles to radiate external radiation directly affect the performance of the particle heat absorber. At present, the absorption rate and the infrared emissivity of an object to solar energy are measured, and the transmittance and the reflectance of the object are mostly measured by an ultraviolet-visible-near infrared spectrophotometer and a Fourier infrared spectrometer, so that the absorption rate and the emissivity are calculated. The particles absorb solar energy and then increase in temperature, so the particles need to be tested for absorptivity and emissivity at high temperatures to evaluate the performance of the solid particle heat absorber.
The methods for measuring the absorption rate of a material mainly include an energy method and a reflection method. The reflection method is to measure the reflectivity and transmissivity of the material through an integrating sphere and obtain the absorptivity according to the conservation of energy. The energy method is characterized in that the emissivity is defined, the radiation force of materials and a black body is measured through a Fourier infrared spectrometer under the same temperature and working condition, the emissivity is calculated, and the absorptivity is obtained according to the kirchhoff law. The two methods are respectively characterized in that: the reflection method can theoretically measure materials at any temperature, but the integrating sphere needs to be correspondingly modified, so that the experiment difficulty is high. The energy method test experiment system is simple in structure and clear in principle, but the radiation force distribution of the material needs to be within a test range, otherwise, a spectrometer cannot detect corresponding energy signals. The key points and difficulties of the spectral radiation characteristic measurement of the high-temperature material are as follows:
(1) the measuring method comprises the following steps: the system needs to test the radiation characteristics of any temperature within 0-1000 ℃, and is difficult to measure the absorptivity in the solar radiation wave band by an energy method, so the absorptivity of the material in ultraviolet, visible and near infrared is needed to be indirectly measured by an integrating sphere, and the emissivity of the medium infrared wave band is carried out by the energy method.
(2) The heating mode is as follows: the material is mainly granular. The material volume is small, the heating temperature is high, and meanwhile, the interference caused by the environmental temperature rise is required to be avoided during heating. Precise heating of the material is therefore required and the ambient temperature rise is reduced.
(3) The temperature measurement mode is as follows: the test material is mainly particles, the diameter is generally 0-10mm, the surface is spherical, and the contact measurement methods such as a thermocouple and the like are difficult to implement.
(4) Reducing background interference: the ultraviolet and visible band test is greatly influenced by visible light in the environment, while the intermediate infrared band test is greatly influenced by water vapor and carbon dioxide, and the background interference brought by the environment needs to be reduced by a shading box and inert atmosphere.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a system for measuring the radiation characteristic of a high-temperature material aiming at the defects involved in the background technology so as to realize the measurement of the absorptivity of the material on a solar waveband and the emissivity of a middle infrared waveband at different temperatures.
The utility model adopts the following technical scheme for solving the technical problems:
a measuring system for radiation characteristics of high-temperature materials comprises a shading box, a heating module and an absorptivity measuring module;
the shading box is used for shielding an external light source so that the shading box is in a non-light state;
the heating module comprises a heating seat, a rack, a carbon dioxide laser, a reflector, a condenser and a water cooler, wherein the heating seat, the rack, the carbon dioxide laser, the reflector and the condenser are all arranged in a shading box, and the water cooler is arranged outside the shading box;
the heating seat is made of a material with low heat conductivity coefficient and comprises a base and a heating table, wherein the base is provided with a through hole through which laser irradiates the heating table; the heating table is fixed on the base and used for placing an opaque material to be measured so that the laser passing through the through hole of the base can irradiate the material fixed on the heating table;
the base is fixed on the rack; a cavity is arranged in the rack, and a light inlet and a light outlet are arranged on the rack; the reflecting mirror and the collecting mirror are both arranged in a cavity of the rack;
the carbon dioxide laser is used for emitting laser, so that the laser irradiates a reflector in the cavity of the rack from a light inlet of the rack;
the reflecting mirror is used for reflecting the laser emitted by the carbon dioxide laser to the collecting mirror;
the condensing lens is used for focusing the laser reflected by the reflecting mirror to improve the energy density and irradiating the laser from a light outlet of the rack to the bottom of the heating table through the through hole on the base to heat the material to be measured on the heating table;
a fluid channel for heat dissipation is arranged in the base, and a water inlet and a water outlet which are connected with the fluid channel are arranged on the surface of the base body;
the output port and the input port of the water cooling machine respectively extend into the shading box through pipelines to be correspondingly connected with the water inlet and the water outlet on the surface of the base, and the water cooling machine is used for radiating heat of the base body;
the absorption rate measurement module comprises a xenon lamp, a condenser, an integrating sphere, a two-color infrared thermometer, a quartz optical fiber, an optical fiber spectrometer and a calculation unit, wherein the xenon lamp, the condenser, the integrating sphere and the two-color infrared thermometer are arranged in a shading box, and the optical fiber spectrometer and the calculation unit are arranged outside the shading box;
the integrating sphere is provided with a luminous hole, a light hole and a temperature measuring hole, is fixedly connected with the heating table through the luminous hole and places a material to be measured in the integrating sphere;
the xenon lamp and the light-transmitting lens are arranged outside the integrating sphere, and the xenon lamp is used for simulating sunlight, converging and reducing light spots through the condensing lens and then irradiating the light spots onto a material to be measured through a light-transmitting hole in the integrating sphere;
the two-color infrared thermometer is arranged outside the integrating sphere, is aligned to a material to be measured through a temperature measuring hole, is used for measuring the temperature of the material to be measured and transmitting the temperature to the calculating unit;
one end of the quartz optical fiber is communicated with the inner cavity of the integrating sphere, and the other end of the quartz optical fiber passes through the shading box to be connected with the optical fiber spectrometer and is used for transmitting light after diffuse reflection in the integrating sphere to the optical fiber spectrometer;
the optical fiber spectrometer is used for analyzing the spectral information of the received light and transmitting the spectral information to the computing unit;
and the calculation unit is electrically connected with the bicolor infrared thermometer and the fiber spectrometer respectively and is used for calculating the absorption rate of the material to be measured to the solar wave band at the current temperature according to the received spectral information.
As a further optimization scheme of the measuring system for the radiation characteristics of the high-temperature material, the heating seat and the rack are both made of 310s stainless steel, so that the heating seat is prevented from being damaged due to overhigh laser heating temperature.
As a further optimization of the measuring system for radiation characteristics of high temperature materials according to the present invention, the inner wall of the light-shielding box is coated with a coating for light absorption to reduce the interference of external visible light.
As a further optimization scheme of the measuring system for the radiation characteristic of the high-temperature material, a polytetrafluoroethylene coating is coated on the heating table, so that incident light emitted by a xenon lamp is not absorbed by a heating cavity base, and the test interference is reduced.
The utility model also discloses another measuring system for the radiation characteristic of the high-temperature material, which comprises a shading box, a nitrogen gas bottle, an atmosphere chamber, a heating module and an emissivity measuring module;
the shading box is used for shielding an external light source so that the shading box is in a non-light state; the nitrogen gas bottle is arranged outside the shading box;
the atmosphere chamber is arranged in the shading box and is provided with a laser hole, a temperature measuring hole, a nitrogen hole, a radiation inlet and a radiation outlet, the laser hole is provided with sealed zinc selenide glass, the temperature measuring hole is provided with sealed quartz glass, and the nitrogen hole penetrates out of the shading box through a pipeline and is communicated with an outlet of a nitrogen gas bottle;
the heating module comprises a heating seat, a bench, a carbon dioxide laser, a reflector, a condenser and a water cooler, wherein the carbon dioxide laser is arranged in a shading box and outside the atmosphere chamber, the heating seat, the bench, the reflector and the condenser are all arranged in the atmosphere chamber, and the water cooler is arranged outside the shading box;
the heating seat is made of a material with low heat conductivity coefficient and comprises a base and a heating table, wherein the base is provided with a through hole through which laser irradiates the heating table; the heating table is fixed on the base and used for placing an opaque material to be measured so that the laser passing through the through hole of the base can irradiate the material fixed on the heating table;
the base is fixed on the rack; a cavity is arranged in the rack, and a light inlet and a light outlet are arranged on the rack; the reflecting mirror and the collecting mirror are both arranged in a cavity of the rack;
the carbon dioxide laser is used for emitting laser, so that the laser sequentially passes through a laser hole of the atmosphere chamber and a light inlet of the rack and then irradiates a reflector in the cavity of the rack;
the reflecting mirror is used for reflecting the laser emitted by the carbon dioxide laser to the collecting mirror;
the condensing lens is used for focusing the laser reflected by the reflecting mirror to improve the energy density and irradiating the laser from a light outlet of the rack to the bottom of the heating table through the through hole on the base to heat the material to be measured on the heating table;
a fluid channel for heat dissipation is arranged in the base, and a water inlet and a water outlet which are connected with the fluid channel are arranged on the surface of the base body;
the output port and the input port of the water cooling machine respectively extend into the shading box through pipelines to be correspondingly connected with the water inlet and the water outlet on the surface of the base, and the water cooling machine is used for radiating heat of the base body;
the emissivity measuring module comprises a bicolor infrared thermometer, a blackbody furnace, a rotating mirror bracket, a collimating mirror, a Fourier infrared spectrometer and a calculating unit;
the two-color infrared thermometer is arranged outside the atmosphere chamber, is aligned to the material to be measured through a temperature measuring hole, and is used for measuring the temperature of the material to be measured and transmitting the temperature to the computing unit;
the input end of the black body furnace is hermetically connected with the radiation inlet of the atmosphere chamber, and the input end of the Fourier infrared spectrometer is hermetically connected with the radiation outlet of the atmosphere chamber through a pipeline;
the collimating lens is arranged in the atmosphere chamber through a rotating lens frame, and the rotating lens frame is used for adjusting the angle of the collimating lens and introducing infrared radiation of a material to be measured or a black body furnace into the Fourier infrared spectrometer;
the Fourier infrared spectrometer is used for analyzing the introduced infrared radiation to obtain the spectral emissivity of the intermediate infrared band of the infrared radiation and transmitting the spectral emissivity to the computing unit;
the calculation unit is electrically connected with the carbon dioxide laser, the bicolor infrared thermometer, the blackbody furnace and the Fourier infrared spectrometer respectively and is used for obtaining the mid-infrared band spectral emissivity of the blackbody furnace and the material to be measured at the same temperature and further calculating the emissivity of the material to be measured at the mid-infrared band.
As a further optimization scheme of the other measuring system for the radiation characteristics of the high-temperature material, the heating seat and the bench are both made of 310s stainless steel, so that the heating seat is prevented from being damaged due to overhigh laser heating temperature.
As a further optimization scheme of the measuring system for the radiation characteristics of the high-temperature material, the inner wall of the light shielding box is coated with a coating for absorbing light so as to reduce the interference of external visible light.
As a further optimization scheme of the measuring system for the radiation characteristics of the high-temperature material, the heating table is coated with the polytetrafluoroethylene coating, so that incident light emitted by the xenon lamp is not absorbed by the heating cavity base, and the test interference is reduced.
As a further optimization scheme of the other measuring system for the radiation characteristics of the high-temperature material, the surface of the collimating mirror is provided with a gold-plated protective film, and the collimating mirror has high reflectivity for infrared radiation within the range of 2.5-25 microns.
Compared with the prior art, the utility model adopting the technical scheme has the following technical effects:
the utility model can lead the sample to reach different temperatures by regulating and controlling the laser power, and can test the absorptivity of the material to solar radiation and the mid-infrared wavelength range at high temperature.
Drawings
FIG. 1 is a schematic structural diagram of a system for measuring radiation characteristics (in the ultraviolet visible near infrared wavelength range) of a high-temperature material according to the present invention;
FIG. 2 is a schematic structural diagram of a system for measuring radiation characteristics (in the mid-infrared wavelength range) of a high-temperature material according to the present invention;
in the figure, 1-xenon lamp, 2-condenser, 3-integrating sphere, 4-quartz fiber, 5-fiber spectrometer, 6-computing unit, 7-carbon dioxide laser, 8-reflector, 9-laser condenser, 10-bench, 11-heating seat, 12-water cooler, 13-material to be measured, 14-bicolor infrared thermometer, 15-shading box, 16-Fourier infrared spectrometer, 17-collimator, 18-blackbody furnace, 19-rotating mirror frame, 20-atmosphere chamber, 21-laser port, 22-temperature measuring port and 23-nitrogen gas cylinder.
Detailed Description
The technical scheme of the utility model is further explained in detail by combining the attached drawings:
the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art. In the drawings, components are exaggerated for clarity.
As shown in FIG. 1, the utility model discloses a measuring system for radiation characteristics of a high-temperature material, which comprises a shading box, a heating module and an absorptivity measuring module;
the shading box is used for shielding an external light source so that the shading box is in a non-light state;
the heating module comprises a heating seat, a rack, a carbon dioxide laser, a reflector, a condenser and a water cooler, wherein the heating seat, the rack, the carbon dioxide laser, the reflector and the condenser are all arranged in a shading box, and the water cooler is arranged outside the shading box;
the heating seat is made of a material with low heat conductivity coefficient and comprises a base and a heating table, wherein the base is provided with a through hole through which laser irradiates the heating table; the heating table is fixed on the base and used for placing an opaque material to be measured so that the laser passing through the through hole of the base can irradiate the material fixed on the heating table;
the base is fixed on the rack; a cavity is arranged in the rack, and a light inlet and a light outlet are arranged on the rack; the reflecting mirror and the collecting mirror are both arranged in a cavity of the rack;
the carbon dioxide laser is used for emitting laser, so that the laser irradiates a reflector in the cavity of the rack from a light inlet of the rack;
the reflecting mirror is used for reflecting the laser emitted by the carbon dioxide laser to the collecting mirror;
the condensing lens is used for focusing the laser reflected by the reflecting mirror to improve the energy density and irradiating the laser from a light outlet of the rack to the bottom of the heating table through the through hole on the base to heat the material to be measured on the heating table;
a fluid channel for heat dissipation is arranged in the base, and a water inlet and a water outlet which are connected with the fluid channel are arranged on the surface of the base body;
the output port and the input port of the water cooling machine respectively extend into the shading box through pipelines to be correspondingly connected with the water inlet and the water outlet on the surface of the base, and the water cooling machine is used for radiating heat of the base body;
the absorption rate measurement module comprises a xenon lamp, a condenser, an integrating sphere, a two-color infrared thermometer, a quartz optical fiber, an optical fiber spectrometer and a calculation unit, wherein the xenon lamp, the condenser, the integrating sphere and the two-color infrared thermometer are arranged in a shading box, and the optical fiber spectrometer and the calculation unit are arranged outside the shading box;
the integrating sphere is provided with a luminous hole, a light hole and a temperature measuring hole, is fixedly connected with the heating table through the luminous hole and places a material to be measured in the integrating sphere;
the xenon lamp and the light-transmitting lens are arranged outside the integrating sphere, and the xenon lamp is used for simulating sunlight, converging and reducing light spots through the condensing lens and then irradiating the light spots onto a material to be measured through a light-transmitting hole in the integrating sphere;
the two-color infrared thermometer is arranged outside the integrating sphere, is aligned to a material to be measured through a temperature measuring hole, is used for measuring the temperature of the material to be measured and transmitting the temperature to the calculating unit;
one end of the quartz optical fiber is communicated with the inner cavity of the integrating sphere, and the other end of the quartz optical fiber passes through the shading box to be connected with the optical fiber spectrometer and is used for transmitting light after diffuse reflection in the integrating sphere to the optical fiber spectrometer;
the optical fiber spectrometer is used for analyzing the spectral information of the received light and transmitting the spectral information to the computing unit;
and the calculation unit is electrically connected with the bicolor infrared thermometer and the fiber spectrometer respectively and is used for calculating the absorption rate of the material to be measured to the solar wave band at the current temperature according to the received spectral information.
As shown in fig. 2, the present invention also discloses another system for measuring radiation characteristics of high temperature materials, which comprises a light shielding box, a nitrogen gas cylinder, an atmosphere chamber, a heating module and an emissivity measuring module;
the shading box is used for shielding an external light source so that the shading box is in a non-light state; the nitrogen gas bottle is arranged outside the shading box;
the atmosphere chamber is arranged in the shading box and is provided with a laser hole, a temperature measuring hole, a nitrogen hole, a radiation inlet and a radiation outlet, the laser hole is provided with sealed zinc selenide glass, the temperature measuring hole is provided with sealed quartz glass, and the nitrogen hole penetrates out of the shading box through a pipeline and is communicated with an outlet of a nitrogen gas bottle;
the heating module comprises a heating seat, a bench, a carbon dioxide laser, a reflector, a condenser and a water cooler, wherein the carbon dioxide laser is arranged in a shading box and outside the atmosphere chamber, the heating seat, the bench, the reflector and the condenser are all arranged in the atmosphere chamber, and the water cooler is arranged outside the shading box;
the heating seat is made of a material with low heat conductivity coefficient and comprises a base and a heating table, wherein the base is provided with a through hole through which laser irradiates the heating table; the heating table is fixed on the base and used for placing an opaque material to be measured so that the laser passing through the through hole of the base can irradiate the material fixed on the heating table;
the base is fixed on the rack; a cavity is arranged in the rack, and a light inlet and a light outlet are arranged on the rack; the reflecting mirror and the collecting mirror are both arranged in a cavity of the rack;
the carbon dioxide laser is used for emitting laser, so that the laser sequentially passes through a laser hole of the atmosphere chamber and a light inlet of the rack and then irradiates a reflector in the cavity of the rack;
the reflecting mirror is used for reflecting the laser emitted by the carbon dioxide laser to the collecting mirror;
the condensing lens is used for focusing the laser reflected by the reflecting mirror to improve the energy density and irradiating the laser from a light outlet of the rack to the bottom of the heating table through the through hole on the base to heat the material to be measured on the heating table;
a fluid channel for heat dissipation is arranged in the base, and a water inlet and a water outlet which are connected with the fluid channel are arranged on the surface of the base body;
the output port and the input port of the water cooling machine respectively extend into the shading box through pipelines to be correspondingly connected with the water inlet and the water outlet on the surface of the base, and the water cooling machine is used for radiating heat of the base body;
the emissivity measuring module comprises a bicolor infrared thermometer, a blackbody furnace, a rotating mirror bracket, a collimating mirror, a Fourier infrared spectrometer and a calculating unit;
the two-color infrared thermometer is arranged outside the atmosphere chamber, is aligned to the material to be measured through a temperature measuring hole, and is used for measuring the temperature of the material to be measured and transmitting the temperature to the computing unit;
the input end of the black body furnace is hermetically connected with the radiation inlet of the atmosphere chamber, and the input end of the Fourier infrared spectrometer is hermetically connected with the radiation outlet of the atmosphere chamber through a pipeline;
the collimating lens is arranged in the atmosphere chamber through a rotating lens frame, and the rotating lens frame is used for adjusting the angle of the collimating lens and introducing infrared radiation of a material to be measured or a black body furnace into the Fourier infrared spectrometer;
the Fourier infrared spectrometer is used for analyzing the introduced infrared radiation to obtain the spectral emissivity of the intermediate infrared band of the infrared radiation and transmitting the spectral emissivity to the computing unit;
the calculation unit is electrically connected with the carbon dioxide laser, the bicolor infrared thermometer, the blackbody furnace and the Fourier infrared spectrometer respectively and is used for obtaining the mid-infrared band spectral emissivity of the blackbody furnace and the material to be measured at the same temperature and further calculating the emissivity of the material to be measured at the mid-infrared band.
In the two systems, the heating module and the shading box are the same, and the heating seat and the rack are both made of 310s stainless steel, so that the heating seat is prevented from being damaged due to overhigh laser heating temperature; the inner wall of the light shading box is coated with paint for absorbing light so as to reduce the interference of external visible light; the heating table is coated with the polytetrafluoroethylene coating, so that incident light emitted by the xenon lamp is not absorbed by the heating cavity base, and the test interference is reduced.
When heating solids, powders, granules, the heating stage can take different configurations. When the particles are heated, the heating table is in a circular ring shape, the outer edge of the heating table is coaxially and fixedly connected with the end face with the smaller diameter of the base, and the diameter of the central through hole of the heating table is smaller than that of the particles, so that the particles are fixed, and meanwhile, the interference of laser penetrating through the particles on the test can be avoided; when the powder material is heated, the heating table is a powder pool which is coaxially and fixedly connected with the end face with the smaller diameter of the base, the bottom wall of the powder pool is made of zinc selenide, and the zinc selenide has high transmittance to laser so that the laser can irradiate the material to be measured in the powder pool through the bottom wall of the powder pool; when heating solid material, the warm table is the ring form, and the outer fringe of warm table and the less terminal surface of base diameter link firmly coaxially, and the diameter of warm table center through-hole is less than the diameter of solid, and the structure is similar to the structure that adopts when heating the granule, and the diameter of warm table center through-hole is great.
The heating temperature of the material to be measured can be adjusted by adjusting the power of the carbon dioxide laser.
The opaque material is used to prevent interference of light emitted from the xenon lamp and the laser through the sample.
The computing unit can adopt a singlechip or a computer.
In addition, in the second proposal, the surface of the collimating lens is provided with a gold-plated protective film, and the collimating lens has high reflectivity to infrared radiation within the range of 2.5-25 μm.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A measuring system for radiation characteristics of high-temperature materials is characterized by comprising a shading box, a nitrogen gas cylinder, an atmosphere chamber, a heating module and an emissivity measuring module;
the shading box is used for shielding an external light source so that the shading box is in a non-light state; the nitrogen gas bottle is arranged outside the shading box;
the atmosphere chamber is arranged in the shading box and is provided with a laser hole, a temperature measuring hole, a nitrogen hole, a radiation inlet and a radiation outlet, the laser hole is provided with sealed zinc selenide glass, the temperature measuring hole is provided with sealed quartz glass, and the nitrogen hole penetrates out of the shading box through a pipeline and is communicated with an outlet of a nitrogen gas bottle;
the heating module comprises a heating seat, a bench, a carbon dioxide laser, a reflector, a condenser and a water cooler, wherein the carbon dioxide laser is arranged in a shading box and outside the atmosphere chamber, the heating seat, the bench, the reflector and the condenser are all arranged in the atmosphere chamber, and the water cooler is arranged outside the shading box;
the heating seat is made of a material with low heat conductivity coefficient and comprises a base and a heating table, wherein the base is provided with a through hole through which laser irradiates the heating table; the heating table is fixed on the base and used for placing an opaque material to be measured so that the laser passing through the through hole of the base can irradiate the material fixed on the heating table;
the base is fixed on the rack; a cavity is arranged in the rack, and a light inlet and a light outlet are arranged on the rack; the reflecting mirror and the collecting mirror are both arranged in a cavity of the rack;
the carbon dioxide laser is used for emitting laser, so that the laser sequentially passes through a laser hole of the atmosphere chamber and a light inlet of the rack and then irradiates a reflector in the cavity of the rack;
the reflecting mirror is used for reflecting the laser emitted by the carbon dioxide laser to the collecting mirror;
the condensing lens is used for focusing the laser reflected by the reflecting mirror to improve the energy density and irradiating the laser from a light outlet of the rack to the bottom of the heating table through the through hole on the base to heat the material to be measured on the heating table;
a fluid channel for heat dissipation is arranged in the base, and a water inlet and a water outlet which are connected with the fluid channel are arranged on the surface of the base body;
the output port and the input port of the water cooling machine respectively extend into the shading box through pipelines to be correspondingly connected with the water inlet and the water outlet on the surface of the base, and the water cooling machine is used for radiating heat of the base body;
the emissivity measuring module comprises a bicolor infrared thermometer, a blackbody furnace, a rotating mirror bracket, a collimating mirror, a Fourier infrared spectrometer and a calculating unit;
the two-color infrared thermometer is arranged outside the atmosphere chamber, is aligned to the material to be measured through a temperature measuring hole, and is used for measuring the temperature of the material to be measured and transmitting the temperature to the computing unit;
the input end of the black body furnace is hermetically connected with the radiation inlet of the atmosphere chamber, and the input end of the Fourier infrared spectrometer is hermetically connected with the radiation outlet of the atmosphere chamber through a pipeline;
the collimating lens is arranged in the atmosphere chamber through a rotating lens frame, and the rotating lens frame is used for adjusting the angle of the collimating lens and introducing infrared radiation of a material to be measured or a black body furnace into the Fourier infrared spectrometer;
the Fourier infrared spectrometer is used for analyzing the introduced infrared radiation to obtain the spectral emissivity of the intermediate infrared band of the infrared radiation and transmitting the spectral emissivity to the computing unit;
the calculation unit is electrically connected with the carbon dioxide laser, the bicolor infrared thermometer, the blackbody furnace and the Fourier infrared spectrometer respectively and is used for obtaining the mid-infrared band spectral emissivity of the blackbody furnace and the material to be measured at the same temperature and further calculating the emissivity of the material to be measured at the mid-infrared band.
2. The system for measuring the radiation characteristics of the high-temperature material as claimed in claim 1, wherein the heating seat and the bench are both made of 310s stainless steel, so as to prevent the heating seat from being damaged due to the overhigh laser heating temperature.
3. The system of claim 1, wherein the inner wall of the light-shielding box is coated with a light-absorbing coating to reduce interference of external visible light.
4. The system of claim 1, wherein the heating stage is coated with a teflon coating so that incident light from the xenon lamp is not absorbed by the base of the heating chamber, thereby reducing interference with the test.
5. The system of claim 1, wherein the collimator has a gold-plated protective film on its surface, and has high reflectivity to infrared radiation in the range of 2.5-25 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121356361.1U CN215574754U (en) | 2020-09-17 | 2020-09-17 | Measuring system for radiation characteristics of high-temperature material |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022044507.0U CN214408760U (en) | 2020-09-17 | 2020-09-17 | Measuring system for radiation characteristics of high-temperature material |
| CN202121356361.1U CN215574754U (en) | 2020-09-17 | 2020-09-17 | Measuring system for radiation characteristics of high-temperature material |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022044507.0U Division CN214408760U (en) | 2020-09-17 | 2020-09-17 | Measuring system for radiation characteristics of high-temperature material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215574754U true CN215574754U (en) | 2022-01-18 |
Family
ID=78017990
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121356361.1U Active CN215574754U (en) | 2020-09-17 | 2020-09-17 | Measuring system for radiation characteristics of high-temperature material |
| CN202022044507.0U Active CN214408760U (en) | 2020-09-17 | 2020-09-17 | Measuring system for radiation characteristics of high-temperature material |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022044507.0U Active CN214408760U (en) | 2020-09-17 | 2020-09-17 | Measuring system for radiation characteristics of high-temperature material |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN215574754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129804A (en) * | 2020-09-17 | 2020-12-25 | 南京航空航天大学 | Measuring system for radiation characteristics of high-temperature material |
-
2020
- 2020-09-17 CN CN202121356361.1U patent/CN215574754U/en active Active
- 2020-09-17 CN CN202022044507.0U patent/CN214408760U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129804A (en) * | 2020-09-17 | 2020-12-25 | 南京航空航天大学 | Measuring system for radiation characteristics of high-temperature material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN214408760U (en) | 2021-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Liang et al. | Experimental investigation on spectral splitting of photovoltaic/thermal hybrid system with two-axis sun tracking based on SiO2/TiO2 interference thin film | |
| Gallo et al. | High flux solar simulators for concentrated solar thermal research: A review | |
| CN112129804A (en) | Measuring system for radiation characteristics of high-temperature material | |
| CN107024699B (en) | Round-the-clock thermometric laser radar based on ultraviolet accurate single branch pure rotation Raman spectroscopy extraction | |
| Xiao et al. | A comprehensive simulation on optical and thermal performance of a cylindrical cavity receiver in a parabolic dish collector system | |
| Thakkar et al. | Performance analysis methodology for parabolic dish solar concentrators for process heating using thermic fluid | |
| Martínez-Manuel et al. | A 17.5 kWel high flux solar simulator with controllable flux-spot capabilities: design and validation study | |
| Shuai et al. | Numerical simulation and experiment research of radiation performance in a dish solar collector system | |
| CN215574754U (en) | Measuring system for radiation characteristics of high-temperature material | |
| CN110530525B (en) | Directional emissivity measuring device and method based on reflection method | |
| Ustaoglu et al. | Truncation effects in an evacuated compound parabolic and involute concentrator with experimental and analytical investigations | |
| Ji et al. | A novel spectral-splitting solar indoor lighting system with reflective direct-absorption cavity: Optical and thermal performance investigating | |
| Gao et al. | Ultrahigh-efficiency solar energy harvesting via a non-concentrating evacuated aerogel flat-plate solar collector | |
| Alzahrani et al. | Optical component analysis for ultrahigh concentrated photovoltaic system (UHCPV) | |
| Demirtaş et al. | The experimental thermal analysis of aluminum metal melting with concentrated solar energy | |
| D'Alessandro et al. | Calorimetric testing of solar thermal absorbers for high vacuum flat panels | |
| Zhang et al. | A spectral emissivity measurement facility for solar absorbing coatings | |
| De Maio et al. | Thermal Efficiency of a Concentrating Solar Collector Under High-Vacuum | |
| Yang et al. | Spectral-spatial design and coupling analysis of the parabolic trough receiver | |
| Danish et al. | Modeling and performance simulation of an innovative concept of linear Fresnel reflector based CSP system | |
| CN213516848U (en) | Heating device for be used for high temperature material spectral characteristic to measure | |
| CN112129710A (en) | Heating device for be used for high temperature material spectral characteristic to measure | |
| Jaworske | Optical and calorimetric evaluation of Z-93-P and other thermal control coatings | |
| CN110953736A (en) | System and method for testing thermal efficiency of molten salt heat absorber | |
| Krueger et al. | Operational performance of the university of Minnesota 45kWe high-flux solar simulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |