CN114205940B - Heating source of sphere radiation source - Google Patents
Heating source of sphere radiation source Download PDFInfo
- Publication number
- CN114205940B CN114205940B CN202111524192.2A CN202111524192A CN114205940B CN 114205940 B CN114205940 B CN 114205940B CN 202111524192 A CN202111524192 A CN 202111524192A CN 114205940 B CN114205940 B CN 114205940B
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- CN
- China
- Prior art keywords
- insulating layer
- wire
- heating source
- radiation source
- gypsum
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 51
- 230000005855 radiation Effects 0.000 title claims abstract description 50
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 52
- 239000010440 gypsum Substances 0.000 claims abstract description 52
- 238000009413 insulation Methods 0.000 claims abstract description 26
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 230000008685 targeting Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H05B3/40—Heating elements having the shape of rods or tubes
-
- 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
Landscapes
- Resistance Heating (AREA)
Abstract
The invention relates to a heating source of a sphere radiation source, one specific embodiment of the heating source comprises: a gypsum heat insulation layer and a plurality of electric furnace wires; the gypsum heat-insulating layer is hemispherical, and the plurality of electric stove wires are fixed on the outer surface of the gypsum heat-insulating layer; each electric stove wire comprises a plurality of spiral parts, and each spiral part comprises a plurality of electric stove wire units with the same shape which are distributed at equal intervals; the spiral part floats between the top and the bottom of the gypsum heat-insulating layer along the warp direction. This embodiment can meet various requirements of the sphere radiation source for the heating source.
Description
Technical Field
The invention relates to the technical field of photoelectricity, in particular to a heating source of a sphere radiation source.
Background
The spherical radiation source has excellent entrance pupil view fields in all directions, is an optimal scheme of an air standard source, and can be matched with airships, tethered balls and the like to solve the air calibration problem. For the heating source of the sphere radiation source, the heating source is required to have larger power density in a smaller internal space of the sphere radiation source, and meanwhile, the heating source has higher uniformity, and the current heating source schemes such as silicon carbide rods, resistance wires and the like cannot meet the requirements. Specifically, the silicon carbide rod is hard and brittle, and cannot meet the shape requirement of the sphere radiation source; the resistance wire can meet the shape requirement of the sphere radiation source, but the heating power is small, and the temperature of more than 500 ℃ cannot be realized.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the heating source of the sphere radiation source, which can meet various requirements of the sphere radiation source on the heating source.
In order to solve the technical problems, in one aspect, an embodiment of the present invention provides a heating source of a sphere radiation source.
The heating source of the sphere radiation source of the embodiment of the invention is positioned inside the sphere radiation source; the heating source includes: a gypsum heat insulation layer and a plurality of electric furnace wires; the gypsum heat-insulating layer is hemispherical, and the plurality of electric stove wires are fixed on the outer surface of the gypsum heat-insulating layer; each electric stove wire comprises a plurality of spiral parts, and each spiral part comprises a plurality of electric stove wire units with the same shape which are distributed at equal intervals; the spiral part floats between the top and the bottom of the gypsum heat-insulating layer along the warp direction.
Optionally, each wire further comprises: the straightened portions of the adjacent two helical portions are connected.
Optionally, fixing grooves are formed in the top and the bottom of the gypsum heat-insulating layer; the straightening part is fixed in the fixing groove, so that the electric stove wire is fixed on the outer surface of the gypsum heat-insulating layer.
Optionally, the depth of the fixing groove is configured to be equal to the wire diameter.
Optionally, the heating source further comprises: the organic silicon is positioned in the middle of the gypsum heat-insulating layer; the helical portion is fixed by the silicone.
Optionally, the heating source further comprises: a plurality of side bulges fixed on the outer side of the gypsum heat-insulating layer; the side bulges are used for preventing the electric stove wire from contacting with the inner surface of the sphere radiation source.
Optionally, the plurality of electric wires are connected end to end by adopting a triangle wiring method.
Optionally, the connection position of the adjacent electric stove wires is electrically connected with an external power supply.
The heating source for the sphere radiation source has the following beneficial effects: using electric stove wires as a heating unit, using a hemispherical gypsum heat-insulating layer as an electric stove wire carrier, and fixing a plurality of electric stove wires on the outer surface of the gypsum heat-insulating layer; each wire heater is designed to comprise a plurality of spiral parts, wherein each spiral part comprises a plurality of wire heater units with the same shape which are distributed at equal intervals; the spiral part floats between the top and the bottom of the gypsum heat-insulating layer along the warp direction. Through the design, the shape requirement and the temperature requirement of the sphere radiation source on a heating source can be met, the electric stove wire power of the top and the bottom can be prevented from being unequal, and therefore the occurrence of a temperature difference ring is avoided, and the influence on the overall uniformity of the sphere radiation source is prevented.
Drawings
FIG. 1 is a schematic diagram of a heating source of a sphere radiation source in an embodiment of the invention;
FIG. 2 is a schematic diagram of the connection of the heating source of the sphere radiation source in an embodiment of the invention.
Reference numerals illustrate:
10: a gypsum heat-insulating layer; 20: a fixing groove; 30: a side projection; 40: an electric stove wire; 41: a helical portion; 42: a wire heating unit; 43: straightening the portion.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic structural diagram of a heating source of a sphere radiation source according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a connection mode of a heating source of a sphere radiation source according to an embodiment of the present invention, as shown in fig. 1 and 2, where the heating source of an embodiment of the present invention is located inside the sphere radiation source and is used for heating the sphere radiation source. In practice, the heating source may comprise a gypsum insulation 10 and a plurality of wires 40.
The gypsum heat-insulating layer 10 is made of insulating heat-insulating materials, has light weight, excellent heat-insulating performance and high workability, and can be processed into a hemispherical shape as required to be used as a carrier of the electric stove wire 40.
The above plurality of wires 40 may be fixed to the outer surface of the gypsum insulation 10. In particular, each wire 40 comprises a plurality of helical portions 41, each helical portion 41 comprising a plurality of identically shaped wire units 42 arranged at equal intervals. Through the structure, more electric wires can be distributed in the same space, so that the requirement of high-power density heating in a narrow space inside a sphere standard radiation source is met.
In a specific scene, heating devices such as heating wires and the like generally adopt concentric circular distribution, but for a heating source of a standard radiation source, the distribution method can cause unequal upper and lower heating powers, and a temperature difference ring phenomenon with a low upper radiation value and a high lower radiation value appears to influence the overall uniformity of the standard radiation source. To ensure uniformity of the spherical standard radiation source, in an embodiment of the present invention, the above spiral portion 41 of the wire 40 is suspended between the top and bottom of the gypsum insulation 10 along the warp direction of the gypsum insulation 10. It will be appreciated that since the gypsum insulation 10 is hemispherical in shape with a larger bottom and a smaller top in the operational state, the warp direction above, i.e., the direction from the bottom of the gypsum insulation 10 directly to the top, does not go through a loop-type arrangement parallel or close to the bottom (such an arrangement being along the weft direction). Through the arrangement mode, the occurrence of the phenomenon of the temperature difference ring can be avoided, and therefore the overall uniformity of the spherical radiation source is ensured.
In addition, the spiral part 41 of the wire 40 is arranged on the surface of the gypsum insulation 10 in a floating manner, so that the heating efficiency can be ensured. Specifically, since the spiral portion 41 is the heating body of the wire 40, if the spiral portion 41 is embedded in the groove of the gypsum insulation 10, the spiral portion 41 can radiate heat only right in front, thereby affecting the heating efficiency, and the power density of the spiral portion 41 in the groove is too large, resulting in a short service life. Thus, the spiral portion 41 may be provided in a floating manner.
As shown in fig. 2, each wire 40 may further comprise: the straightened portions 43 of the adjacent two spiral portions 41 are connected. Since the heating body of the wire 40 is a spiral portion 41, the wire 40 can be fixed by means of the straightening portion 43. In practical application, the fixing grooves 20 are formed in the top and bottom of the gypsum insulation 10, so that the straightening parts 43 of the electric stove wires 40 can be fixed in the fixing grooves 20 in the top and bottom of the gypsum insulation 10 according to actual positions, and the electric stove wires 40 are fixed on the outer surface of the gypsum insulation 10. In the above design, the straightened portion 43 is fixed only to the top and bottom of the gypsum insulation 10, and is not provided to the outer surface of the gypsum insulation 10.
Referring to fig. 2, by the above arrangement, the wire 40 can be integrally fixed by the straightened portion 43 of the wire 40 while the spiral portion 41 of the wire 40 is floated on the outer surface between the top and bottom (the top and the top may be planes parallel to each other) of the gypsum insulation 10 in the warp direction of the gypsum insulation 10. Specifically, the top plane or the bottom plane of the gypsum insulation 10 is pre-provided with a plurality of fixing grooves 20 at proper positions, and for each wire 40, a plurality of straightening parts 43 of the wire can be fixed in the fixing grooves 20 at proper positions, so that the whole fixing of the wire 40 is realized. At this time, the spiral portion 41 of the wire 40 is integrally extended from the top of the gypsum insulation 10 directly to the bottom or from the bottom directly to the top and is floated on the outer surface of the gypsum insulation 10 without being spirally wound between the top and the bottom in a circular manner. In the above arrangement, the overall extending direction of the spiral portion 41 coincides with or is close to the warp direction of the gypsum insulation 10.
Preferably, the depth of the fixing groove 20 is configured to be equal to the diameter of the wire 40 (i.e., the diameter of the wire body) so as to ensure that the straightened portion 43 does not protrude beyond the gypsum insulation 10 and does not affect the heat conduction of the straightened portion 43. In order to further enhance the fixing effect of the wire 40, the spiral portion 41 of the wire 40 may be fixed using high temperature-resistant silicone in the middle (e.g., at the waist line) of the gypsum insulation 10.
Since the heating source is inside the sphere radiation source, in order to avoid damage to the inner surface (which is typically coated with an insulating layer, including damage to the insulating layer) or damage to the wire 40 caused by contact of the wire 40 with the inner surface of the sphere radiation source, a plurality of side projections 30 may be provided on the outside of the gypsum insulation 10, each side projection 30 may extend a certain length (which may be greater than the diameter of the spiral portion of the wire, i.e. the extended caliber of the wire unit in the spiral portion) towards the outside of the gypsum insulation 10, thereby preventing the wire 40 from contacting the inner surface of the sphere radiation source.
In a specific scene, in order to ensure uniformity of radiation sources in all directions, the electric wires 40 are distributed at equal intervals as much as possible, but if a conventional star connection method is adopted, the distance between adjacent electric wires 40 is shorter, partial discharge can be generated due to phase pressure difference, and an insulating layer is broken down, so that the electric wires 40 are damaged and cannot be heated. Based on the above consideration, the embodiment of the invention adopts the triangle wiring method to connect a plurality of electric wires 40, and because each electric wire 40 is connected end to end, no pressure difference exists between adjacent electric wires 40, thereby ensuring the high radiation and high uniformity of the sphere radiation source and simultaneously ensuring the stability and reliability. It will be appreciated that the connection location (i.e. A, B, C in fig. 2) of adjacent wires 40 is electrically connected to an external power source.
Through carrying out above design to the heating source, can satisfy the demand of high power density heating in the inside narrow and small space of spheroid standard radiation source, can finally realize high Wen Qiuti standard radiation source, and processes such as wire heater, gypsum heat preservation are comparatively simple and the price is comparatively cheap, can reduce the weight and the cost of spheroid standard radiation source, and high Wen Qiuti radiation source can provide repeated aerial calibration, has very high use value and spreading value.
In summary, in the technical scheme of the embodiment of the invention, the electric stove wires are used as the heating units, the hemispherical gypsum heat-insulating layer is used as the electric stove wire carrier, and a plurality of electric stove wires are fixed on the outer surface of the gypsum heat-insulating layer; each wire heater is designed to comprise a plurality of spiral parts, wherein each spiral part comprises a plurality of wire heater units with the same shape which are distributed at equal intervals; the spiral part floats between the top and the bottom of the gypsum heat-insulating layer along the warp direction. Through the design, the shape requirement and the temperature requirement of the sphere radiation source on a heating source can be met, the sphere radiation source can adapt to the conditions of small internal volume, large required heating power, high uniformity requirement and the like of the sphere standard radiation source, and the electric stove wire power at the top and the bottom can be prevented from being unequal, so that the occurrence of a temperature difference ring is avoided, and the influence on the overall uniformity of the sphere radiation source is further prevented.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. A heating source for a spherical radiation source, wherein the spherical radiation source is used for air targeting of an airship or tethered ball, the heating source being internal to the spherical radiation source; the heating source includes: a gypsum heat insulation layer and a plurality of electric furnace wires; wherein,
the gypsum heat-insulating layer is hemispherical, and the plurality of electric stove wires are fixed on the outer surface of the gypsum heat-insulating layer;
each electric stove wire comprises a plurality of spiral parts, and each spiral part comprises a plurality of electric stove wire units with the same shape which are distributed at equal intervals;
the spiral part floats between the top and the bottom of the gypsum heat-insulating layer along the warp direction;
each wire further comprises: a straightening portion connecting the adjacent two spiral portions;
fixing grooves are formed in the top and the bottom of the gypsum heat-insulating layer;
the straightening part is fixed in the fixing groove, so that the electric stove wire is fixed on the outer surface of the gypsum heat-insulating layer;
the depth of the fixing groove is configured to be equal to the diameter of the electric stove wire;
the heating source further comprises: the organic silicon is positioned in the middle of the gypsum heat-insulating layer;
the helical portion is immobilized by the silicone;
the heating source further comprises: a plurality of side bulges fixed on the outer side of the gypsum heat-insulating layer; wherein,
the side projections are used for preventing the wire from contacting the inner surface of the sphere radiation source.
2. A heating source according to claim 1, wherein the plurality of wires are connected end to end by a delta connection.
3. A heating source according to claim 2, wherein the connection locations of adjacent wires are electrically connected to an external power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111524192.2A CN114205940B (en) | 2021-12-14 | 2021-12-14 | Heating source of sphere radiation source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111524192.2A CN114205940B (en) | 2021-12-14 | 2021-12-14 | Heating source of sphere radiation source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114205940A CN114205940A (en) | 2022-03-18 |
| CN114205940B true CN114205940B (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111524192.2A Active CN114205940B (en) | 2021-12-14 | 2021-12-14 | Heating source of sphere radiation source |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87207383U (en) * | 1987-08-04 | 1988-03-09 | 侯梦斌 | High-efficiency resistance furnace |
| US5296685A (en) * | 1992-01-08 | 1994-03-22 | Quartz Tubing, Inc. | Heating coil structures |
| CN2235588Y (en) * | 1995-11-01 | 1996-09-18 | 冯茂全 | Chemical gas electric heating furnace |
| KR19980033911A (en) * | 1996-11-04 | 1998-08-05 | 김용철 | Large capacity resistor and manufacturing method |
| CN101069657A (en) * | 2006-05-09 | 2007-11-14 | 王国状 | Artificial biological machine-meirenyu |
| CN201731624U (en) * | 2010-01-15 | 2011-02-02 | 赵志文 | Electric heating fan |
| CN102061364A (en) * | 2010-10-25 | 2011-05-18 | 中国十九冶集团有限公司武汉分公司 | Method for dehumidifying and drying electric heating band of annealing furnace |
| JP3177414U (en) * | 2012-05-22 | 2012-08-02 | 有限会社ナカイ | Electromagnetic induction heating device |
| CN202721833U (en) * | 2012-07-13 | 2013-02-06 | 天津七所高科技有限公司 | A novel wire connecting structure of electrical heating elements |
| CN104048945A (en) * | 2014-06-09 | 2014-09-17 | 清华大学 | Spectral emissivity steady testing system and method |
| CN107073349A (en) * | 2014-09-08 | 2017-08-18 | 创新热电分析工具公司 | The heating shield apparatus of new setting with heater |
| CN206947066U (en) * | 2017-07-03 | 2018-01-30 | 深圳市颖发电子有限公司 | A kind of resistor core and resistance box |
| CN208044421U (en) * | 2018-05-08 | 2018-11-02 | 山东小鹏机械有限公司 | A kind of automatically controlled hot bellows |
| CN109536359A (en) * | 2018-11-03 | 2019-03-29 | 青岛创恩康生物科技有限公司 | A kind of stainless steel ball and preparation method thereof with radiator |
| CN110475398A (en) * | 2019-08-16 | 2019-11-19 | 北京环境特性研究所 | Electric furnace heating wire power determining method in face type radiation source and face type radiation source |
-
2021
- 2021-12-14 CN CN202111524192.2A patent/CN114205940B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87207383U (en) * | 1987-08-04 | 1988-03-09 | 侯梦斌 | High-efficiency resistance furnace |
| US5296685A (en) * | 1992-01-08 | 1994-03-22 | Quartz Tubing, Inc. | Heating coil structures |
| CN2235588Y (en) * | 1995-11-01 | 1996-09-18 | 冯茂全 | Chemical gas electric heating furnace |
| KR19980033911A (en) * | 1996-11-04 | 1998-08-05 | 김용철 | Large capacity resistor and manufacturing method |
| CN101069657A (en) * | 2006-05-09 | 2007-11-14 | 王国状 | Artificial biological machine-meirenyu |
| CN201731624U (en) * | 2010-01-15 | 2011-02-02 | 赵志文 | Electric heating fan |
| CN102061364A (en) * | 2010-10-25 | 2011-05-18 | 中国十九冶集团有限公司武汉分公司 | Method for dehumidifying and drying electric heating band of annealing furnace |
| JP3177414U (en) * | 2012-05-22 | 2012-08-02 | 有限会社ナカイ | Electromagnetic induction heating device |
| CN202721833U (en) * | 2012-07-13 | 2013-02-06 | 天津七所高科技有限公司 | A novel wire connecting structure of electrical heating elements |
| CN104048945A (en) * | 2014-06-09 | 2014-09-17 | 清华大学 | Spectral emissivity steady testing system and method |
| CN107073349A (en) * | 2014-09-08 | 2017-08-18 | 创新热电分析工具公司 | The heating shield apparatus of new setting with heater |
| CN206947066U (en) * | 2017-07-03 | 2018-01-30 | 深圳市颖发电子有限公司 | A kind of resistor core and resistance box |
| CN208044421U (en) * | 2018-05-08 | 2018-11-02 | 山东小鹏机械有限公司 | A kind of automatically controlled hot bellows |
| CN109536359A (en) * | 2018-11-03 | 2019-03-29 | 青岛创恩康生物科技有限公司 | A kind of stainless steel ball and preparation method thereof with radiator |
| CN110475398A (en) * | 2019-08-16 | 2019-11-19 | 北京环境特性研究所 | Electric furnace heating wire power determining method in face type radiation source and face type radiation source |
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| Publication number | Publication date |
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| CN114205940A (en) | 2022-03-18 |
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