CN103234998B - High heating flux solar full-spectrum radiation heating device - Google Patents
High heating flux solar full-spectrum radiation heating device Download PDFInfo
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- CN103234998B CN103234998B CN201310145961.7A CN201310145961A CN103234998B CN 103234998 B CN103234998 B CN 103234998B CN 201310145961 A CN201310145961 A CN 201310145961A CN 103234998 B CN103234998 B CN 103234998B
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Abstract
The invention provides a high heating flux solar full-spectrum radiation heating device which comprises an electric slit, a Fresnel plane condensing lens, a secondary prism, a adjustment bracket, a quartz window, a three-dimensional rotary bracket, a date tracking system, an electromagnetic valve, a thermocouple temperature sensor probe, a stepping motor, a programmable logic controller (PLC) subsystem, a refrigerator, a pipeline, a vacuum solenoid valve, a vacuum pump, a sample, a water-cooling sample bracket, a vacuum regulating valve and an environmental chamber. The full-spectrum radiation heating device is high in heating flux, adjustable in parameters, scientific, simple and easy, simple to operate and low in cost. The sunlight is efficiently converged by the Fresnel plane condensing lens and the secondary prism, high heating flux load is generated, and heat prevention/insulation material in the environmental chamber can be loaded, so that the service performances such as ablation and thermal shock can be tested and evaluated.
Description
Technical field
What the present invention relates to is the full spectral coverage radiant heating device of a kind of sun power, is specifically related to a kind of high heat flux sun power full-specturm radiation heating arrangement.
Background technology
The development of aeronautical and space technology make hypersonic aircraft become present stage each promulgated by the State Council emphasis.Breaking through " thermal boundary " is the key technical problem that first development hypersonic aircraft must be broken through.Improve its operating performance and mobility for making hypersonic aircraft there is better aerodynamic configuration, following hypersonic aircraft requires to set up taking non-ablation or low ablation thermal protection struc ture and material as main thermal protection system, reaches and reduces decline and meet the requirement of long-time military service because of the ablation aircraft aeroperformance causing of degenerating.The usabilities such as this resistance to extreme temperature to anti-under hot environment/heat-barrier material, ablation, thermal shock have proposed harsh requirement.In order to study and test the usability of novel prevent/heat-barrier material, set up a series of ground checkout equipments.
The ground type of heating of prevent/heat-barrier material usability of test and evaluation is mainly divided into Aerodynamic Heating, radiation heating, energising heating and induction heating etc. at present.Aerodynamic Heating device mainly contains arc tunnel, high frequency plasma wind-tunnel, oxy-acetylene, can produce the steady flow condition of high heat flux, for test and evaluation anti-/ performances such as the ablation of heat-barrier material, thermal shock, heatproof, sealing, wind-tunnel can be simulated to a certain extent and suitable structures is wide, simulation context is wide, but this device systems forms complexity, construction and operating cost is high, the adjusting of hot-fluid parameter and comparatively difficulty of demarcation, experimental situation, water power are had relatively high expectations, auxiliary facility is had relatively high expectations, particularly electric arc, high frequency wind-tunnel negligible amounts; The gas interference flowing field environment that oxy-acetylene burning produces, therefore the proving installation based on Aerodynamic Heating cannot carry out extensive original reason test to anti-/ heat-barrier material.Induction, electric heating device have high requirement to power supply, and thermal force loads inhomogeneous, and material surface and inside exist certain thermograde, and Electric and magnetic fields has a certain impact to material.Therefore anti-/ heat-barrier material is carried out to principle test, eliminate the interference of proving installation, the ground type of heating of the usability the bests such as prevent/heat-barrier material heatproof of A+E, ablation, thermal shock should be radiation heating.
Radiant heating device mainly contains electric radiation heat, infrared radiation heating etc.High vacuum plate graphite furnace is a kind of typical electric radiation heating arrangement, by dull and stereotyped graphite energising heating, utilize graphite radiation heat load to heat material, arrangement using quartz lamp array photoelectricity heating furnace is a kind of infrared radiation heating device, obtain Infrared by infrared quartz fluorescent tube array, utilize high-strength Infrared to carry out radiation heating to material.Because graphite infrared radiation and quartz lamp infrared radiation are not full-specturm radiations, measured material is to each spectral coverage absorptive rate of radiation difference, cause these two kinds of heating arrangement efficiencies of heating surface not high, the heat flow density producing is lower, the rate of heat addition is lower, maximum heating temperature is no more than 1600 DEG C, therefore has significant limitation, is badly in need of the full spectral coverage radiant heating device of a kind of high heat flux anti-/ heat-barrier material is carried out to test and evaluation.
Summary of the invention
The object of the present invention is to provide be a kind ofly rapidly heated, the radiant type hot test environment of static loading, to anti-/ heat-barrier material under its Service Environment anti-/ heat-proof quality carries out the heating arrangement of ground simulation.
The object of the present invention is achieved like this: a kind of high heat flux sun power full-specturm radiation heating arrangement, electronic slit, Fresnel planar concentrating lens, secondary prism, adjusting pole, quartz window, three-dimensional rotation support, solar tracking subsystem, solenoid valve, thermocouple temperature sensor probe, stepper motor, PLC control subsystem, refrigeration machine, pipeline, vacuum solenoid, vacuum pump, sample, water-cooled sample holder, vacuum breaker and environmental chamber, thermal sub-system comprises electronic slit, Fresnel planar concentrating lens and secondary prism, thermal sub-system is fixed on three-dimensional rotation support by adjusting pole, can move up and down vertically, three-dimensional rotation internal stent is provided with quartz window, environmental chamber is fixed on three-dimensional rotation support, in environmental chamber, be provided with water-cooled sample holder, sample is placed in water-cooled sample holder, environmental chamber bottom is provided with vacuum breaker, vacuum breaker is connected with vacuum pump by gas exhaust duct, gas exhaust duct is provided with vacuum solenoid, solar tracking subsystem is connected with three-dimensional rotation support, water-cooled sample holder is connected with refrigeration machine by pipeline by water, and thermocouple temperature sensor probe passes and is connected with sample from water-cooled sample holder side.
The present invention also has some technical characterictics like this: sunshine converges to specimen surface on water-cooled bracket through Fresnel planar concentrating lens, the secondary condensation prism at middle part, the quartz window of described three-dimensional rotation cantilever tip; Converge size and the position of spot by changing the position adjustments of secondary condensation prism;
Angle and the solar tracking control of the vacuum tightness in experimental cabin, the position of water-cooled sample holder, three-dimensional rotation support all regulate by PLC control subsystem.
Full spectral coverage radiant heating device high heat flux provided by the present invention, parameter is adjustable, science is simple and easy, simple to operate, low cost.By Fresnel planar concentrating lens and secondary condensation prism, sunshine is efficiently converged, produce high heat flux load, anti-/ heat-barrier material in environmental chamber is loaded, realize the test and evaluation of the usabilities such as its ablation, thermal shock.
Brief description of the drawings
Fig. 1 is the structural representation of invention.
Embodiment
Further illustrate substantive distinguishing features of the present invention and marked improvement below by specific embodiment, but content of the present invention is not only confined to the following examples:
Embodiment mono-
The present embodiment is a kind of high heat flux sun power full-specturm radiation heating arrangement, comprise electronic slit 1, Fresnel planar concentrating lens 2 and the secondary prism 3 of below, be fixed on three-dimensional rotation support 6 by adjusting pole 4, can move up and down vertically, sunshine is through lens 2, prism 3, converge on sample 16 through environmental chamber 19 top quartz windows 5, sample is placed on water-cooled bracket 17, cooling circulating water is connected with refrigeration machine 12 by pipeline 13, controlled by PLC control subsystem 11, thermocouple temperature sensor probe 9 is placed in sample back wall through water-cooled bracket from the side, temperature signal transmits and is stored to PLC, solar tracking subsystem 7 is connected with three-dimensional rotation support, adjust three-dimensional rotation support 6 angles and controlled by PLC by solenoid valve 8 and stepper motor 10, vacuum breaker 18 is placed in environmental chamber 19 bottoms, gas exhaust duct is connected with vacuum pump 15 through vacuum solenoid 14, by regulating vacuum breaker cabin 19 internal pressures that control environment, cabin internal pressure is monitored by resistance vacuum gauge, and record pressure variation by PLC.
The present embodiment can carry out the heating of high heat flux full-specturm radiation to anti-/ heat-barrier material, first by test specimen 16 clampings to water-cooled bracket 17, according to sample 16 sizes and heating region design light path, determine to meet light path requirement by the definite position of secondary prism 3 of adjusting pole 4 and the height of water-cooled bracket 17, determine heating region, connect thermocouple temperature sensor probe 9 to sample 16 back walls, after normal by the transmission of multimeter test signal, close hatch door, open refrigeration machine 12 by PLC centralized control system, cooling circulating water enters water-cooled bracket by pipeline 13, guarantee to heat front cooling circulating water normal operation, to prevent that bracket from burning out, open vacuum solenoid 14 and start vacuum pump 15, by the pressure in vacuum breaker 18 adjusting ambient cabins 19, utilize resistance vacuum gauge monitoring cabin internal pressure to change, data transmission is also stored to PLC, reach after testing requirements until vacuum chamber 19 internal pressures, PLC control step motor 10 regulates adjusts three-dimensional rotation support 6 and position of sun, after correction, start solar tracking subsystem 7 by PLC, carry out the automatic tracing of three-dimensional rotation support 6 to the sun, open temp collecting sensor signal storage simultaneously, after signal transmission is normal, open electronic slit 1, start heating, whole operation is all carried out centralized control by PLC control subsystem guidance panel, after off-test, close crawl slit 1, signals collecting switch and solar tracking subsystem 7, close vacuum solenoid 14, stop vacuum pump 15, after opening air intake valve, open environmental chamber 19, take out sample and obtain and in PLC, store data, close cold-producing medium, power-off.
High silica material at high temperature heat test, sample dimensions: diameter is 10mm, thickness is 3mm.Test specimen is fixed on water-cooled bracket, and the position adjustments that changes bracket and secondary prism by control subsystem loads spot diameter to 10mm, changes vacuum valve size adjustment environmental chamber internal pressure 10
-2pa; Open slit and load, the motion of solar tracking subsystem automatic sun-tracking, carries out laser heating and utilizes thermocouple temperature sensor to record sample back wall temperature history simultaneously; Test shows, tests while proceeding to 60s, and test specimen back wall temperature has reached 1600 DEG C.
Embodiment bis-
The present embodiment is a kind of high heat flux sun power full-specturm radiation heating arrangement, comprise electronic slit 1, Fresnel planar concentrating lens 2 and the secondary prism 3 of below, be fixed on three-dimensional rotation support 6 by adjusting pole 4, can move up and down vertically, sunshine is through lens 2, prism 3, converge on sample 16 through environmental chamber 19 top quartz windows 5, sample is placed on water-cooled bracket 17, cooling circulating water is connected with refrigeration machine 12 by pipeline 13, controlled by PLC control subsystem 11, thermocouple temperature sensor probe 9 is placed in sample back wall through water-cooled bracket from the side, temperature signal transmits and is stored to PLC, solar tracking subsystem 7 is connected with three-dimensional rotation support, adjust three-dimensional rotation support 6 angles and controlled by PLC by solenoid valve 8 and stepper motor 10, vacuum breaker 18 is placed in environmental chamber 19 bottoms, gas exhaust duct is connected with vacuum pump 15 through vacuum solenoid 14, by regulating vacuum breaker cabin 19 internal pressures that control environment, cabin internal pressure is monitored by resistance vacuum gauge, and record pressure variation by PLC.
The present embodiment can carry out the heating of high heat flux full-specturm radiation to anti-/ heat-barrier material, first by test specimen 16 clampings to water-cooled bracket 17, according to sample 16 sizes and heating region design light path, determine to meet light path requirement by the definite position of secondary prism 3 of adjusting pole 4 and the height of water-cooled bracket 17, determine heating region, connect thermocouple temperature sensor probe 9 to sample 16 back walls, after normal by the transmission of multimeter test signal, close hatch door, open refrigeration machine 12 by PLC centralized control system, cooling circulating water enters water-cooled bracket by pipeline 13, guarantee to heat front cooling circulating water normal operation, to prevent that bracket from burning out, open vacuum solenoid 14 and start vacuum pump 15, by the pressure in vacuum breaker 18 adjusting ambient cabins 19, utilize resistance vacuum gauge monitoring cabin internal pressure to change, data transmission is also stored to PLC, reach after testing requirements until vacuum chamber 19 internal pressures, PLC control step motor 10 regulates adjusts three-dimensional rotation support 6 and position of sun, after correction, start solar tracking subsystem 7 by PLC, carry out the automatic tracing of three-dimensional rotation support 6 to the sun, open temp collecting sensor signal storage simultaneously, after signal transmission is normal, open electronic slit 1, start heating, whole operation is all carried out centralized control by PLC control subsystem guidance panel, after off-test, close crawl slit 1, signals collecting switch and solar tracking subsystem 7, close vacuum solenoid 14, stop vacuum pump 15, after opening air intake valve, open environmental chamber 19, take out sample and obtain and in PLC, store data, close cold-producing medium, power-off.
The static heat test of graphite material, sample dimensions: diameter is 10mm, and thickness is respectively 3mm, 5mm and 10mm.Test specimen is fixed on water-cooled bracket, and the position adjustments that changes bracket and secondary prism by control subsystem loads spot diameter to 10mm, changes vacuum valve size adjustment environmental chamber internal pressure 10
-2pa; Open slit and load, the motion of solar tracking subsystem automatic sun-tracking, carries out laser heating and utilizes thermocouple temperature sensor to record sample back wall temperature history simultaneously; Test findings is as follows:
Claims (3)
1. a high heat flux sun power full-specturm radiation heating arrangement, comprises electronic slit (1), Fresnel planar concentrating lens (2), secondary prism (3), adjusting pole (4), quartz window (5), three-dimensional rotation support (6), solar tracking subsystem (7), solenoid valve (8), thermocouple temperature sensor probe (9), stepper motor (10), PLC control subsystem (11), refrigeration machine (12), pipeline (13), vacuum solenoid (14), vacuum pump (15), sample (16), water-cooled sample holder (17), vacuum breaker (18) and environmental chamber (19), is characterized in that: thermal sub-system comprises electronic slit (1), Fresnel planar concentrating lens (2) and secondary prism (3), wherein electronic slit (1) below is Fresnel planar concentrating lens (2), Fresnel planar concentrating lens (2) below is secondary prism (3), it is upper that thermal sub-system is fixed on three-dimensional rotation support (6) by adjusting pole (4), can move up and down vertically, three-dimensional rotation support (6) inside is provided with quartz window (5), described quartz window (5) is positioned at secondary prism (3) below, environmental chamber (19) is fixed on three-dimensional rotation support (6), in environmental chamber (19), be provided with water-cooled sample holder (17), sample (16) is placed in water-cooled sample holder (17), environmental chamber (19) bottom is provided with vacuum breaker (18), vacuum breaker (18) is connected with vacuum pump (15) by gas exhaust duct, gas exhaust duct is provided with vacuum solenoid (14), solar tracking subsystem (7) is connected with three-dimensional rotation support (6), water-cooled sample holder (17) is passed through pipeline (13) by water and is connected with refrigeration machine (12), thermocouple temperature sensor probe (9) passes and is connected with sample (16) from water-cooled sample holder (17) side, electronic slit (1), Fresnel planar concentrating lens (2), secondary prism (3), adjusting pole (4), quartz window (5) are all positioned at environmental chamber (19) inside.
2. a kind of high heat flux sun power full-specturm radiation heating arrangement according to claim 1, is characterized in that: sunshine converges to sample on water-cooled bracket (16) surface through Fresnel planar concentrating lens (2), the secondary prism (3) at middle part, the quartz window (5) on described three-dimensional rotation support (6) top; Converge size and the position of spot by changing the position adjustments of secondary prism (3).
3. a kind of high heat flux sun power full-specturm radiation heating arrangement according to claim 1, is characterized in that: angle and the solar tracking control of the vacuum tightness in experimental cabin, the position of water-cooled sample holder (17), three-dimensional rotation support (6) all regulate by PLC control subsystem (11).
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| CN201310145961.7A CN103234998B (en) | 2013-04-25 | 2013-04-25 | High heating flux solar full-spectrum radiation heating device |
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| CN104266674B (en) * | 2014-10-17 | 2017-02-15 | 中国石油大学(华东) | Lens type simulation device of high heating flux heating surface |
| CN105911094B (en) * | 2016-06-23 | 2018-11-02 | 哈尔滨工业大学 | The measuring device and high temperature heat transfer experimental method of micro-/ nano porous material high temperature heat transfer |
| CN109738475B (en) * | 2019-01-10 | 2021-03-16 | 中国兵器工业第五九研究所 | High-frequency secondary flame impact testing device and testing method |
| CN110514692A (en) * | 2019-08-07 | 2019-11-29 | 中国北方发动机研究所(天津) | A kind of provision for thermal insulation heat-transfer effect test and experiment device |
| CN112524882B (en) * | 2020-12-17 | 2024-05-24 | 西安交通大学 | Active cooling prism refraction type quartz lamp high-temperature heating device and method |
| CN113624908A (en) * | 2021-08-10 | 2021-11-09 | 中国科学技术大学 | Material ignition simulation experiment device |
| CN113900459B (en) * | 2021-10-28 | 2023-08-25 | 南京机电职业技术学院 | High-power light-focusing flash-burning device |
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| CN101625166B (en) * | 2009-08-13 | 2011-05-04 | 崔长海 | Solar hot air heating device |
| CN101915654B (en) * | 2010-06-25 | 2011-12-21 | 北京航空航天大学 | System and method for simulating irradiation heating environment of hypersonic aircraft |
| CN202002747U (en) * | 2011-03-16 | 2011-10-05 | 北京航空航天大学 | High-temperature measuring device for surface of nonmetal heat-proof material plane test piece of high-supersonic aircrafts |
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