CN109561523B - High-temperature heating device based on double-combination reflecting cover - Google Patents
High-temperature heating device based on double-combination reflecting cover Download PDFInfo
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- CN109561523B CN109561523B CN201811182857.4A CN201811182857A CN109561523B CN 109561523 B CN109561523 B CN 109561523B CN 201811182857 A CN201811182857 A CN 201811182857A CN 109561523 B CN109561523 B CN 109561523B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0033—Heating devices using lamps
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
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Abstract
The invention discloses a high-temperature heating device based on double combined reflectors, which is used for improving the light focusing effect at a sample, and comprises a plurality of heating units, wherein each heating unit comprises a groove-shaped combined reflector and a heating lamp tube arranged in the groove-shaped combined reflector, the groove-shaped combined reflector comprises an elliptical arc reflector and two arc reflectors, the two arc reflectors respectively extend out from two ends of the elliptical arc reflector, and the heating lamp tube is positioned at the first focus of the elliptical arc reflector and at the circle centers of the two arc reflectors. The elliptical arc reflecting cover fully focuses the light rays emitted by the heating lamp tube positioned at the first focus onto the sample positioned at the second focus; secondly, reflecting the light rays with a smaller emission angle to the elliptical surface through the first focal point again by using the arc reflector, and finally still focusing the light rays on the sample; the whole arrangement of the heating unit is more compact by the structure of the reflecting cover, and the total depth of the reflecting cover is ensured not to be too shallow, so that the heating temperature of a sample is improved by condensing light.
Description
Technical Field
The invention relates to the field of neutron scattering experiments, in particular to a high-temperature heating device based on a double-combination reflecting cover.
Background
With the deep research on the microstructure of the material, the neutron scattering method or the synchrotron radiation method is popularized and applied more. Taking a neutron scattering method as an example, scattering experiments at normal temperature and lower heating temperature have already had mature practical experience, and in order to more accurately understand the real-time change of material performance at high temperature, it is becoming more urgent to design a high-temperature heating furnace. The four existing hash neutron source official nets and published data in the world show that two methods of coil induction heating and infrared heating are generally adopted in high-temperature in-situ experiments of engineering samples, the induction heating method is obviously limited by the shape and the size of the samples, and the infrared heating method has a wider application range relatively.
The infrared heating method usually adopts a halogen tungsten filament lamp tube as a light source, and is matched with a reflecting cover to realize light focusing at a sample position in order to improve the heating effect, the maximum heating temperature of the engineering sample which can be achieved at present is about 1000 ℃, for part of special high-temperature materials, the existing neutron scattering in-situ experiment heating furnace can not meet the requirements, and a heating furnace with higher temperature needs to be designed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a high-temperature heating device based on double combined reflectors, which realizes better light focusing and higher emergent intensity, meets the geometrical requirement of a neutron scattering coverage angle after a sample and realizes the compact arrangement of the whole structure of a heating furnace.
The purpose of the invention is realized by adopting the following technical scheme:
a high-temperature heating device based on double combined reflectors is used for improving the light focusing effect at a sample, and comprises a plurality of heating units, each heating unit comprises a groove-shaped combined reflector and a heating lamp tube arranged in the groove-shaped combined reflector, the groove-shaped combined reflector comprises an elliptical arc reflector and two arc reflectors, the two arc reflectors respectively extend out from two ends of the elliptical arc reflector, and the heating lamp tube is positioned at a first focus of the elliptical arc reflector and at the circle centers of the two arc reflectors; the heating units are divided into two groups which are symmetrically arranged at two sides of the sample, and a neutron scattering coverage angle is formed by connecting tangent points of the sample and the arc reflecting covers positioned at the outer sides of the heating units at the same side; the groove-shaped combined reflecting cover further comprises a plane emergent port, the plane emergent port is located between the two circular arc reflecting covers and located close to one side of the sample, and the sample is located at a second focus of the elliptical arc reflecting cover.
Further, the number of the heating units is even, and the heating units are symmetrically arranged on two sides of the sample.
Further, the number of the heating units is 4 or 6.
Further, the intersection point of the elliptical arc reflector and the circular arc reflector, the edge point of the circular arc reflector and the sample are located on a straight line.
Further, the depth of the elliptical arc reflector is consistent with the height of the position of the first focus, or is smaller than the height of the position of the first focus or larger than the height of the position of the first focus.
Furthermore, the inner surfaces of the elliptical arc reflecting cover and the arc reflecting cover are plated with gold layers to improve the reflecting efficiency.
Further, the outer surfaces of the elliptical arc reflecting cover and the circular arc reflecting cover are provided with cooling channel systems.
Compared with the prior art, the high-temperature heating device based on the double-combination reflector has the following advantages that:
1) the invention adopts a groove-shaped reflector structure, the cross section of the groove-shaped reflector structure is in a combined shape of an elliptical arc and a circular arc, and the elliptical arc reflector fully focuses light rays emitted by a heating lamp tube positioned at a first focus onto a sample positioned at a second focus; secondly, reflecting the light rays with a smaller emission angle to the elliptical surface through the first focal point again by using the arc reflector, and finally still focusing the light rays on the sample; compared with the existing universal elliptical arc reflector in the field of neutron scattering, the combined shape enables the width of an exit port of the whole reflector in the direction of a sample to be narrowed, and under the condition that the neutron scattering coverage angle is certain behind the sample, the volume of a single reflector is enlarged, the integral structure is more compact, the total depth of the reflector is ensured not to be too shallow, and the heating temperature of the sample is improved more favorably by condensation.
2) The geometric dimensions of the ellipse and the circle are strictly calculated, three points of the intersection point of the ellipse and the circle, the edge point of the circle and the central point of the sample are collinear, the quantity of emergent rays can be optimized, and the reflector cannot be overhigh in temperature.
3) The inner surface of the reflecting cover is totally designed by a gold plating layer to improve the reflecting efficiency.
4) Simulation of the groove-shaped combined reflector provided by the invention through TracePro software shows that the light flux absorbed by a sample is increased by about 72% compared with that of an elliptical reflector.
Drawings
FIG. 1 is a perspective view of a high temperature heating apparatus based on a double combined reflector according to the present invention;
FIG. 2 is a schematic structural diagram of a first embodiment of the high-temperature heating apparatus based on the double combined reflection cover of FIG. 1;
FIG. 3 is a schematic structural diagram of a second embodiment of the high-temperature heating apparatus based on the double combined reflection cover of FIG. 1;
fig. 4 is a schematic structural diagram of a third embodiment of the high-temperature heating apparatus based on the double combined reflection cover of fig. 1.
In the figure: 10. a heating unit; 11. heating the lamp tube; 12. a trough-shaped combined reflector; 120. an elliptical arc reflector; 121. a circular arc reflector; 122. a planar exit port; 123. a point of intersection; 124. edge points; 20. neutron scattering coverage angle; 200. a sample; 300. a neutron detector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all 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. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 4, a high temperature heating apparatus based on a dual combined reflector according to the present invention includes a plurality of heating units 10.
Each heating unit 10 includes a heating lamp 11 and a groove-shaped combined reflector 12. The heating lamp tube 11 is arranged in the groove-shaped combined reflecting cover 12. The groove-shaped combined reflector 12 comprises an elliptical-arc reflector 120, two circular-arc reflectors 121 and a planar exit port 122. The two arc reflectors 121 extend from the end of the elliptical reflector 120, and the planar exit opening 122 is located between the two arc reflectors 121. The elliptical arc reflector 120 and the circular arc reflector 121 form an intersection point 123 therebetween. An edge point 124 is formed between the edge of the arc reflector 121 and the planar exit port 122. The heating lamp tube 11 is located at a first focal point of the elliptical arc reflector 120 and the sample 200 is located at a second focal point of the elliptical arc reflector 120. The heating lamp 11 is located at the center of the two arc reflectors 121. The intersection point 123, the edge point 124 and the sample 200 are located on the same straight line, so that the quantity of the emergent rays can be optimized. The inner surfaces of the elliptical arc reflecting cover 120 and the two arc reflecting covers 121 are plated with gold layers to improve the reflecting efficiency. The outer walls of the elliptical arc reflecting cover 120 and the two circular arc reflecting covers 121 are provided with cooling channel systems.
The number of the heating units 10 is even. Preferably, the number of heating units 10 is 4 or 6. The heating units 10 are divided into two groups and symmetrically distributed on two sides of the sample 200, and a connecting line between the sample 200 and the outer tangent point of the arc reflector 121 forms a neutron scattering coverage angle 20. The neutron detectors 300 are respectively arranged on the left side and the right side of the sample 200 in the axial direction, and from a physical angle, the requirement of a certain coverage angle is provided for the emergent neutrons scattered by the sample 200, so that the neutron scattering coverage angle 20 is required to be larger than the physically required coverage angle value.
In the first embodiment, the depth of the elliptical arc reflector 120 coincides with the position of the first focal point. In the second embodiment, the depth of the elliptical arc reflector 120 is slightly shorter than the position of the first focal point. In the third embodiment, the depth of the elliptical arc reflector 120 is slightly longer than the position of the first focal point.
The high-temperature heating device based on the double-combination reflector has the following advantages:
1) the invention adopts a groove-shaped combined reflector 12 structure, the cross section is in a combined shape of an elliptical arc and a circular arc, and the elliptical arc reflector 120 fully focuses light rays emitted by the heating lamp tube 11 positioned at a first focus onto the sample 200 positioned at a second focus; secondly, the arc reflector 121 reflects the light rays with smaller emission angles to the elliptical surface through the first focus again, and finally focuses the light rays on the sample 200; compared with the existing universal elliptical arc reflector in the neutron scattering field, the combined shape enables the width of an exit port of the whole reflector along the sample direction to be narrowed, and under the condition that the neutron scattering coverage angle is certain after the sample 200, the single reflector 12 is large in size and compact in overall structure, and meanwhile, the total depth of the reflector 12 is not too shallow, so that the heating temperature of the sample 200 can be improved by condensation.
2) The geometric dimensions of the ellipse and the circle are strictly calculated, and the intersection point 123 of the ellipse and the circle, the edge point 124 of the circle and the central point of the sample 200 are collinear, so that the quantity of emergent rays can be optimized, and the temperature of the reflector cannot be overhigh.
3) The inner surface of the groove-shaped combined reflecting cover 12 is totally designed by a gold plating layer to improve the reflecting efficiency.
4) Simulation of the trough-type combined reflector 12 provided by the invention through TracePro software shows that the light flux absorbed by a sample is increased by about 72% compared with that of an elliptical reflector.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a high temperature heating device based on two combination bowl for promote sample department light focus effect, its characterized in that: the high-temperature heating device based on the double combined reflectors comprises a plurality of heating units, each heating unit comprises a groove-shaped combined reflector and a heating lamp tube arranged in the groove-shaped combined reflector, the groove-shaped combined reflector comprises an elliptical arc reflector and two arc reflectors, the two arc reflectors respectively extend out of two ends of the elliptical arc reflector, the heating lamp tube is positioned at a first focus of the elliptical arc reflector and positioned at the circle centers of the two arc reflectors, the heating units are divided into two groups which are symmetrically arranged at two sides of a sample, and a neutron scattering coverage angle is formed by tangent point connecting lines of the sample and the arc reflectors positioned at the outer sides of each group of heating units at the same side of the sample; the groove type combined reflecting cover further comprises a plane emergent port, the plane emergent port is located between the two arc reflecting covers and located close to one side of the sample, and the sample is located at the second focus of the elliptical arc reflecting cover.
2. The high-temperature heating apparatus based on the double combined reflector according to claim 1, wherein: the number of the heating units is even, and the heating units are symmetrically arranged on two sides of the sample.
3. The high-temperature heating apparatus based on the double combined reflector according to claim 2, wherein: the number of the heating units is 4 or 6.
4. The high-temperature heating apparatus based on the double combined reflector according to claim 1, wherein: and the intersection point of the elliptic arc reflector and the circular arc reflector, the edge point of the circular arc reflector and the sample are positioned on a straight line.
5. The high-temperature heating apparatus based on the double combined reflector according to claim 1, wherein: the depth of the elliptical arc reflector is consistent with the height of the position of the first focus, or is smaller than the height of the position of the first focus or larger than the height of the position of the first focus.
6. The high-temperature heating apparatus based on the double combined reflector according to claim 1, wherein: the inner surfaces of the elliptical arc reflecting cover and the arc reflecting cover are plated with gold layers to improve the reflecting efficiency.
7. The high-temperature heating apparatus based on the double combined reflector according to claim 1, wherein: and cooling channel systems are arranged on the outer surfaces of the elliptical arc reflecting cover and the circular arc reflecting cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811182857.4A CN109561523B (en) | 2018-10-11 | 2018-10-11 | High-temperature heating device based on double-combination reflecting cover |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811182857.4A CN109561523B (en) | 2018-10-11 | 2018-10-11 | High-temperature heating device based on double-combination reflecting cover |
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| CN109561523A CN109561523A (en) | 2019-04-02 |
| CN109561523B true CN109561523B (en) | 2022-06-07 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0340988A (en) * | 1989-07-07 | 1991-02-21 | Mitsubishi Electric Corp | Electrostatic floating furnace |
| JP2001242109A (en) * | 2000-02-29 | 2001-09-07 | Rigaku Corp | Infrared heating furnace |
| CN104320868A (en) * | 2014-09-29 | 2015-01-28 | 绵阳力洋英伦科技有限公司 | Elliptical surface focusing type pipe type heating device |
| CN105377784A (en) * | 2013-07-23 | 2016-03-02 | 锋翔科技公司 | Compound elliptical reflector for curing optical fibers |
| CN105822949A (en) * | 2015-01-09 | 2016-08-03 | 哈尔滨新光光电科技有限公司 | Uniform illumination system based on two reflecting covers |
| CN105823008A (en) * | 2015-01-26 | 2016-08-03 | 欧司朗有限公司 | Lighting device with light source and reflector of ellipsoidal reflective surface |
-
2018
- 2018-10-11 CN CN201811182857.4A patent/CN109561523B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0340988A (en) * | 1989-07-07 | 1991-02-21 | Mitsubishi Electric Corp | Electrostatic floating furnace |
| JP2001242109A (en) * | 2000-02-29 | 2001-09-07 | Rigaku Corp | Infrared heating furnace |
| CN105377784A (en) * | 2013-07-23 | 2016-03-02 | 锋翔科技公司 | Compound elliptical reflector for curing optical fibers |
| CN104320868A (en) * | 2014-09-29 | 2015-01-28 | 绵阳力洋英伦科技有限公司 | Elliptical surface focusing type pipe type heating device |
| CN105822949A (en) * | 2015-01-09 | 2016-08-03 | 哈尔滨新光光电科技有限公司 | Uniform illumination system based on two reflecting covers |
| CN105823008A (en) * | 2015-01-26 | 2016-08-03 | 欧司朗有限公司 | Lighting device with light source and reflector of ellipsoidal reflective surface |
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| CN109561523A (en) | 2019-04-02 |
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