CN202195889U - High-precision black furnace body - Google Patents
High-precision black furnace body Download PDFInfo
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- CN202195889U CN202195889U CN2011202965129U CN201120296512U CN202195889U CN 202195889 U CN202195889 U CN 202195889U CN 2011202965129 U CN2011202965129 U CN 2011202965129U CN 201120296512 U CN201120296512 U CN 201120296512U CN 202195889 U CN202195889 U CN 202195889U
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- blackbody chamber
- furnace
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Abstract
The utility model relates to a high-precision black furnace body comprising a body and a control cabinet, wherein the body comprises a furnace body (3), two furnace flanges (1), a black body chamber (8), an induction coil (5) and a plurality of mounting bases (17), the furnace body (3) is a hollow horizontal graphite pipe furnace, flanges are arranged at openings of two ends of the furnace body (3), two furnace flanges (1) are fixedly connected with flanges at two ends of the furnace body (3) through multiple locking screw nuts (2) , a plurality of the mounting bases (17) are fixedly connected at the periphery of the furnace body (3), the two furnace flanges (1) are both provided with middle openings, a sealing ring (14) is arranged between each furnace flange (1) and the furnace body (3), the black body chamber (8) is arranged in the furnace body (3), and an induction coil (5) surrounds the black body chamber (8); the temperature uniformity of the black body cavity of the black furnace body is improved, the radiation transfer medium is ensured to be single, the system error caused by radiation standards is eliminated and the radiation characteristics of the black body are prevented from being affected.
Description
Technical field
The utility model relates to the measurement instrument field of measuring temperature, relates in particular to a kind of 600-3000 ℃ the black body of heater of high precision.
Background technology
Blackbody furnace is usually as calibrated radiation source; Its main application is: the radiation intensity of demarcating various infrared origin; Demarcate the responsiveness of all kinds of infrared eyes; Measure the transmittance of infrared optical system, study the radiation characteristic of various material surfaces, research atmosphere or other materials are to the absorption of radiation or transmission performance etc.Blackbody furnace is classified by temperature, can be divided into low temperature, three types of middle gentle high temperature, and the 600-3000 that the utility model the relates to ℃ of black body of heater of high temperature that belongs to wherein.
Blackbody furnace commonly used generally is made up of black matrix cavity, heating system, cooling system, Measurement and Control System etc.The high temperature blackbody furnace also will be equipped with vacuum system or inert gas shielding system.The black matrix cavity is selected the material of high radiation coefficient for use, makes according to brother's good fortune is theoretical.Taper is generally arranged, cylindricality, sphere.The type of heating of blackbody furnace is selected resistance heated usually for use, promptly after the thermo electric material heating, makes the temperature of thermo electric material and blackbody chamber temperature reach thermal equilibrium through the heat transmission, and passes through temperature control system, makes thisly to be equilibrated at the long period and can to keep.
Can know according to boltzmann law: the total radiation out-degree of black matrix is directly proportional with the biquadratic of its temperature, that is to say, when blackbody temperature have very little change the time, will cause the variation that the radiation out-degree is very big.For example, the surface temperature of black matrix increases 1K, and its radiation energy in the unit interval on unit area will increase 16 times.
This Pan-boltzmann law of making a mistake:
Adopt the mode of this traditional resistance heated; At first can arrive problem because of the heat conduction of heating, and electric current (1500A) electrode is owing to the shelf depreciation problem that contact resistance produces greatly, it is even to make the blackbody chamber temperature be difficult to; And gradient is very big; Cause heat balance time long, use inconvenience, energy consumption is high.
And the thermal equilibrium in the black body of heater body receives the influence of factors such as external environment and coefficient of heat conductivity easily, is difficult to the temperature uniformity that makes that the black matrix cavity is interior.And whether the blackbody chamber temperature is even, very big to the radiation out-degree influence of blackbody furnace.
General high temperature blackbody furnace is owing to the limitation of type of heating and blackbody chamber system work, and temperature evenly needs the time long, even long balance.The Temperature Distribution difference of black matrix cavity is also very big.And because the employing of vacuum system, radiation window generally all seals with quartz glass.
This shows that the major defect of the black body of heater of existing high temperature is: poor temperature uniformity influences the blackbody radiation performance; Heat time heating time is long, and power consumption is big.
Adopt the mode of novel induction heating, the black matrix cavity promptly is a radiator, also is heater element, and heating efficiency is high, and temperature is even.In addition, electromagnetic heating technique is not have the shelf depreciation problem, as long as guarantee that magnetic field intensity is even, just can guarantee homogeneous heating.Because electromagnetic heating technique electromagnetic conversion efficient is high, under the prerequisite that guarantees the blackbody furnace performance parameter, cut down the consumption of energy.
For this reason, the deviser of the utility model is because above-mentioned defective through concentrating on studies and designing, comprehensively is engaged in for a long time the experience and the achievement of related industry for many years, and research and design goes out a kind of, to overcome above-mentioned defective.
Summary of the invention
The purpose of the utility model is to provide a kind of high precision to deceive body of heater, and it is simple in structure, and is easy to operate, has not only improved the homogeneity of blackbody furnace blackbody chamber temperature, guarantees also that simultaneously the radiation delivery media is single.
Be to realize above-mentioned purpose, the utility model discloses the black body of heater of a kind of high precision, this black body of heater comprises body and switch board, and body includes body of heater 3, two body of heater flanges 1, blackbody chamber 8, induction coil 5 and a plurality of mount pads 17; Body of heater 3 is the horizontal graphite-tube furnace of hollow, and the both ends open of body of heater 3 is provided with flange, and two body of heater flanges 1 are affixed through a plurality of lock-screw nut 2 with two end boss of body of heater 3 respectively, and a plurality of mount pads 17 are fixed in the periphery of body of heater 3; It is characterized in that:
Two body of heater flanges 1 be equipped with intermediate openings, be provided with O-ring seal 14 between each body of heater flange 1 and the body of heater 3; Blackbody chamber 8 is positioned at body of heater 3, and induction coil 5 is around blackbody chamber 8.
Wherein: be provided with protection tube 6 and heat-insulation layer 7 between blackbody chamber 8 and the induction coil 5; This protection tube 6 is for centering on the peripheral of blackbody chamber 8 and stretching out the graphite thermal insulation protection pipe at blackbody chamber 8 two ends; The two ends of protection tube 6 are respectively equipped with blackbody chamber clamp nut 15; Thereby the internal thread on the external thread of blackbody chamber clamp nut 15 and the protection tube 6 engagement with respectively at two ends roof pressure blackbody chamber 8 accurately locate blackbody chamber 8; Heat-insulation layer 7 comprises around the cylindrical portion and two plate-like portions that compress two blackbody chamber clamp nut 15 outsides of protection tube 6 and blackbody chamber clamp nut 15 peripheries; These two plate-like portions have intermediate throughholes, between heat-insulation layer 7 and both sides body of heater flange 1, have inner flange 4 respectively, and inner flange 4 is positioned at the outside of heat-insulation layer 7 and is resisted against on the body of heater flange 1 through a plurality of elastic components 10.
Wherein: induction coil 5 spiral fashions are centered around on the excircle of cylindrical portion of heat-insulation layer 7 uniformly, and the two ends of induction coil 5 are the electrode 16 that stretches out body of heater 3.
Wherein: the intermediate openings of one of them in above-mentioned two body of heater flanges 2 is provided with quartz glass 12; This intermediate openings is provided with window set nut 13; This quartz glass 12 of an end pushing tow of this window set nut 13 and being fixed on this intermediate openings; And have O-ring seal 11 between this window set nut 13 and the quartz glass 12, the intermediate openings of another body of heater flange 2 is open.
Wherein: on body of heater 3, be provided with gas atmosphere inlet 9, this gas atmosphere inlet 9 is connected with the argon bottle that stores blanket gas 20.
Wherein: switch board 19 includes control system 21, pressure test device 22, high frequency electric source 23, temperature survey and control device 24, current sensing means 25, device for detecting water pressure 26, frequency detecting device 27, voltage check device 28 and cooling-water pump 29; Control system 21 is connected with device for detecting water pressure 26 with pressure test device 22, temperature survey and control device 24; The electrode 16 at induction coil 5 two ends is connected in high frequency electric source 23, and this high frequency electric source 23 is connected with temperature survey and control device 24, current sensing means 25, device for detecting water pressure 26, frequency detecting device 27, voltage check device 28 and cooling-water pump 29.
Wherein: temperature control system comprises PID controller and double color infrared temperature measuring instrument 18, and this double color infrared temperature measuring instrument 18 is arranged at the outside of body of heater 3 and aims at quartz glass 12.
Wherein: this blackbody chamber 8 is the graphite-pipe of Φ 45mm, long 650mm.
Through said structure, the utility model can be realized following technique effect:
1, radiation window adopting quartz glass sealing; A radiation window is that standard-sized sheet is put, and the window of quartz glass sealing is used for temperature detection and closed-loop control, and open window is used window (being standard infrared radiation window) for the user; Can guarantee the uniqueness (in atmosphere, transmitting) of the transmission medium of infrared radiation like this; Avoided because medium absorbs the radiation loss that causes, eliminated the systematic error that radiation standard is introduced, and then avoided influencing the radiation characteristic of black matrix;
2, body of heater heat generating member (blackbody chamber) and other insulation materials such as insulation graphite etc. all are under the argon shield, can fidelity blackbody chamber can safe operate as normal under high temperature (600-3000 ℃) situation;
3, adopt electromagnetic heating technique, make the black matrix cavity become heater, and because inductive coil special distribution in heating system can guarantee that the blackbody chamber temperature is even.
The detailed content of the utility model can through after explanation and the institute's accompanying drawing stated obtain.
Description of drawings
Fig. 1 has shown the structural representation of the black body of heater of high precision of the utility model.
The Reference numeral implication is following:
1, body of heater flange; 2, lock-screw nut; 3, body of heater; 4, inner flange; 5, induction coil; 6, protection tube; 7, heat-insulation layer; 8, blackbody chamber; 9, gas atmosphere inlet; 10, elastic component; 11, glass capsulation circle; 12, quartz glass; 13, window set nut; 14, O-ring seal; 15, blackbody chamber set nut; 16, electrode; 17, mount pad; 18, infrared thermometer; 19, switch board; 20, argon bottle; 21, control system; 22, pressure test device; 23, high frequency electric source; 24, temperature survey and control device; 25, current sensing means; 26, device for detecting water pressure; 27, frequency detecting device; 28, voltage check device; 29, cooling-water pump.
Embodiment
Referring to Fig. 1, shown the structural representation of the black body of heater of high precision of the utility model, this black body of heater comprises body and switch board, and body includes body of heater 3, two body of heater flanges 1, blackbody chamber 8, induction coil 5 and a plurality of mount pads 17; Wherein, body of heater 3 is the horizontal graphite-tube furnace of hollow, and the both ends open of body of heater 3 is provided with flange, and two body of heater flanges 1 are affixed through a plurality of lock-screw nut 2 with two end boss of body of heater 3 respectively, and a plurality of mount pads 17 are fixed in the periphery of body of heater 3; The middle part of body of heater flange 1 is provided with opening, is provided with O-ring seal 14 so that sealing effectiveness to be provided between body of heater flange 1 and the body of heater 3; Blackbody chamber 8 is positioned at body of heater 3, and induction coil 5 is provided with around blackbody chamber 8, and blackbody chamber is according to brother's good fortune Design Theory, and radiation coefficient is more than 0999, and this blackbody chamber 8 is preferably the graphite-pipe of Φ 45mm, long 650mm.
Wherein, Be provided with protection tube 6 and heat-insulation layer 7 between blackbody chamber 8 and the induction coil 5; This protection tube 6 is for centering on the peripheral of blackbody chamber 8 and stretching out the graphite thermal insulation protection pipe at the two ends of blackbody chamber 8, and heat-insulation layer 7 is around the periphery of protection tube 6 and the two ends of stretching out protection tube 6, and this heat-insulation layer 7 is carbon felt and aluminium carbonate insulation material; Thereby guarantee that body of heater has thermal capacitance characteristic preferably, is convenient to accuracy control over temperature.The two ends of protection tube 6 are respectively equipped with blackbody chamber clamp nut 15; The engagement of internal thread on the external thread of blackbody chamber clamp nut 15 and the protection tube 6 is with the roof pressure blackbody chamber 8 at two ends respectively; Thereby accurately locate blackbody chamber 8, and this blackbody chamber clamp nut 15 is hollow form, heat-insulation layer 7 comprises around protection tube 6 and blackbody chamber clamp nut 15 peripheral cylindrical portion and two plate-like portions that compress two blackbody chamber clamp nut 15 outsides; These two plate-like portions have intermediate throughholes; Between heat-insulation layer 7 and both sides body of heater flange 1, have inner flange 4 respectively, inner flange 4 is positioned at the outside of heat-insulation layer 7 and is resisted against on the body of heater flange 1 through a plurality of elastic components 10, and each inner flange 4 all has intermediate throughholes; Preferably, every side all has 3 elastic components 10.
Wherein, induction coil 5 is centered around for spiral fashion on the excircle of cylindrical portion of heat-insulation layer 7 uniformly, and the two ends of induction coil 5 are the electrode 16 that stretches out body of heater 3.
The intermediate openings of one of them in above-mentioned two body of heater flanges 2 is provided with quartz glass 12; This intermediate openings is provided with window set nut 13; This quartz glass 12 of an end pushing tow of this window set nut 13 and being fixed on this intermediate openings; And have O-ring seal 11 between this window set nut 13 and the quartz glass 12, the intermediate openings of another body of heater flange 2 is open.
Wherein, on body of heater 3, be provided with gas atmosphere inlet 9, this gas atmosphere inlet 9 connects in the argon bottle that stores blanket gas 20.
Wherein, switch board 19 includes control system 21, pressure test device 22, high frequency electric source 23, temperature survey and control device 24, current sensing means 25, device for detecting water pressure 26, frequency detecting device 27, voltage check device 28 and cooling-water pump 29; Control system 21 is connected with device for detecting water pressure 26 with pressure test device 22, temperature survey and control device 24; The electrode 16 at induction coil 5 two ends is connected in high frequency electric source 23; By high frequency electric source 23 high-frequency electrical energy is provided; It is preferably the high frequency electric source of 30kw, and this power supply has 95% conversion efficiency and high power factor (PF); For guaranteeing the operate as normal of high frequency electric source 23, this high frequency electric source 23 is connected with temperature survey and control device 24, current sensing means 25, device for detecting water pressure 26, frequency detecting device 27, voltage check device 28 and cooling-water pump 29.
Thus, the control section of the utility model comprises hydraulic pressure detection and warning, air pressure detects and report to the police detection of high frequency electric source work safety and warning, temperature detection and temperature control system.
The temperature control system of the utility model comprises PID controller and double color infrared temperature measuring instrument 18; This double color infrared temperature measuring instrument 18 is arranged at the outside of body of heater 3 and aims at quartz glass 12; Measure the temperature of blackbody chamber 8 and feed back to the PID controller through double color infrared temperature measuring instrument 18; The PID controller gets output power through adjustment high-frequency electrical power supply, reaches the purpose of control blackbody chamber 8 temperature, makes it to become the infrared origin of a standard.
Because the blackbody furnace of the utility model has two radiation windows; A radiation window adopting quartz glass sealing; A radiation window is that standard-sized sheet is put, and the window of quartz glass sealing is used for temperature detection and closed-loop control, and open window is used window (being standard infrared radiation window) for the user; Can guarantee the uniqueness (in atmosphere, transmitting) of the transmission medium of infrared radiation like this; Avoided because medium absorbs the radiation loss that causes, eliminated the systematic error that radiation standard is introduced, and then avoided influencing the radiation characteristic of black matrix.
In the course of the work, other insulation materials such as body of heater heat generating member (blackbody chamber) and insulation graphite all are under the argon shield, can fidelity safe operate as normal of blackbody chamber ability under high temperature (600-3000 ℃) situation.
It adopts electromagnetic heating technique, makes the black matrix cavity become heater, and because inductive coil special distribution in heating system can guarantee that the blackbody chamber temperature is even.
It is obvious that, and above description and record only are to give an example rather than disclosure, application or use in order to limit the utility model.Though described and be described in the drawings embodiment in an embodiment; But the optimal mode that the utility model does not limit by the accompanying drawing example and the conduct of describing is in an embodiment thought at present is with the specific examples of the instruction of implementing the utility model, and the scope of the utility model will comprise any embodiment of the instructions that falls into the front and appended claim.
Claims (8)
1. a high precision is deceived body of heater, and this black body of heater comprises body and switch board, and body includes body of heater (3), two body of heater flanges (1), blackbody chamber (8), induction coil (5) and a plurality of mount pad (17); Body of heater (3) is the horizontal graphite-tube furnace of hollow, and the both ends open of body of heater (3) is provided with flange, and two body of heater flanges (1) are affixed through a plurality of lock-screw nuts (2) with two end boss of body of heater (3) respectively, and a plurality of mount pads (17) are fixed in the periphery of body of heater (3); It is characterized in that:
Two body of heater flanges (1) be equipped with intermediate openings, be provided with O-ring seal (14) between each body of heater flange (1) and the body of heater (3); Blackbody chamber (8) is positioned at body of heater (3), and induction coil (5) is around blackbody chamber (8).
2. high precision as claimed in claim 1 is deceived body of heater; It is characterized in that: be provided with protection tube (6) and heat-insulation layer (7) between blackbody chamber (8) and the induction coil (5); This protection tube (6) is for centering on the peripheral of blackbody chamber (8) and stretching out the graphite thermal insulation protection pipe at blackbody chamber (8) two ends; The two ends of protection tube (6) are respectively equipped with blackbody chamber clamp nut (15); The engagement of internal thread on the external thread of blackbody chamber clamp nut (15) and the protection tube (6) with respectively at two ends roof pressure blackbody chamber (8) thus accurately locate blackbody chamber (8); Heat-insulation layer (7) comprises around protection tube (6) and the peripheral cylindrical portion and two plate-like portions that compress two blackbody chamber clamp nuts (15) outside of blackbody chamber clamp nut (15); These two plate-like portions have intermediate throughholes, between heat-insulation layer (7) and both sides body of heater flanges (1), have inner flange (4) respectively, and inner flange (4) is positioned at the outside of heat-insulation layer (7) and is resisted against on the body of heater flange (1) through a plurality of elastic components (10).
3. high precision as claimed in claim 2 is deceived body of heater, it is characterized in that: induction coil (5) spiral fashion is centered around on the excircle of cylindrical portion of heat-insulation layer (7) uniformly, and the two ends of induction coil (5) are for stretching out the electrode (16) of body of heater (3).
4. like claim 1, the black body of heater of 2 or 3 described high precision; It is characterized in that: the intermediate openings of one of them in above-mentioned two body of heater flanges (2) is provided with quartz glass (12); This intermediate openings is provided with window set nut (13); This quartz glass of end pushing tow (12) of this window set nut (13) and being fixed on this intermediate openings; And have O-ring seal (11) between this window set nut (13) and the quartz glass (12), the intermediate openings of another body of heater flange (2) is open.
5. high precision as claimed in claim 4 is deceived body of heater, it is characterized in that: on body of heater (3), be provided with gas atmosphere inlet (9), this gas atmosphere inlet (9) are connected with the argon bottle that stores blanket gas (20).
6. like claim 1 or the black body of heater of 5 described high precision, it is characterized in that: switch board (19) includes control system (21), pressure test device (22), high frequency electric source (23), temperature survey and control device (24), current sensing means (25), device for detecting water pressure (26), frequency detecting device (27), voltage check device (28) and cooling-water pump (29); Control system (21) is connected with device for detecting water pressure (26) with pressure test device (22), temperature survey and control device (24); The electrode (16) at induction coil (5) two ends is connected in high frequency electric source (23), and this high frequency electric source (23) is connected with temperature survey and control device (24), current sensing means (25), device for detecting water pressure (26), frequency detecting device (27), voltage check device (28) and cooling-water pump (29).
7. high precision as claimed in claim 6 is deceived body of heater, it is characterized in that: temperature control system comprises PID controller and double color infrared temperature measuring instrument (18), and this double color infrared temperature measuring instrument (18) is arranged at the outside of body of heater (3) and aims at quartz glass (12).
8. like claim 1 or the black body of heater of 7 described high precision, it is characterized in that: this blackbody chamber (8) is the graphite-pipe of Φ 45mm, long 650mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202965129U CN202195889U (en) | 2011-08-16 | 2011-08-16 | High-precision black furnace body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202965129U CN202195889U (en) | 2011-08-16 | 2011-08-16 | High-precision black furnace body |
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| CN202195889U true CN202195889U (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202965129U Expired - Fee Related CN202195889U (en) | 2011-08-16 | 2011-08-16 | High-precision black furnace body |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344900A (en) * | 2013-07-26 | 2015-02-11 | 北京航天计量测试技术研究所 | Blackbody radiation source |
| CN104897285A (en) * | 2015-03-27 | 2015-09-09 | 中国计量科学研究院 | Standard variable temperature blackbody device |
| CN105043556A (en) * | 2015-05-13 | 2015-11-11 | 张锁弟 | High-efficiency light type high-temperature black-body furnace |
| CN105067123A (en) * | 2015-05-13 | 2015-11-18 | 高伟 | Efficient lamination-type high-temperature blackbody furnace body |
| CN104075807B (en) * | 2014-07-25 | 2017-05-31 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of high temperature blackbody radiation source graphite blackbody chamber manufacture method |
| CN108132100A (en) * | 2018-02-12 | 2018-06-08 | 江苏鑫华半导体材料科技有限公司 | A kind of means for correcting of infrared radiation thermometer and bearing calibration |
| CN109916177A (en) * | 2019-04-03 | 2019-06-21 | 中国科学院近代物理研究所 | A kind of ecr ion source induction furnace |
-
2011
- 2011-08-16 CN CN2011202965129U patent/CN202195889U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344900A (en) * | 2013-07-26 | 2015-02-11 | 北京航天计量测试技术研究所 | Blackbody radiation source |
| CN104075807B (en) * | 2014-07-25 | 2017-05-31 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of high temperature blackbody radiation source graphite blackbody chamber manufacture method |
| CN104897285A (en) * | 2015-03-27 | 2015-09-09 | 中国计量科学研究院 | Standard variable temperature blackbody device |
| CN104897285B (en) * | 2015-03-27 | 2019-02-19 | 中国计量科学研究院 | A kind of standard alternating temperature black matrix device |
| CN105043556A (en) * | 2015-05-13 | 2015-11-11 | 张锁弟 | High-efficiency light type high-temperature black-body furnace |
| CN105067123A (en) * | 2015-05-13 | 2015-11-18 | 高伟 | Efficient lamination-type high-temperature blackbody furnace body |
| CN105067123B (en) * | 2015-05-13 | 2018-09-14 | 高伟 | A kind of high-efficiency tandem formula high temperature blackbody furnace body |
| CN108132100A (en) * | 2018-02-12 | 2018-06-08 | 江苏鑫华半导体材料科技有限公司 | A kind of means for correcting of infrared radiation thermometer and bearing calibration |
| CN108132100B (en) * | 2018-02-12 | 2022-07-15 | 江苏鑫华半导体科技股份有限公司 | Correcting device and correcting method of infrared thermometer |
| CN109916177A (en) * | 2019-04-03 | 2019-06-21 | 中国科学院近代物理研究所 | A kind of ecr ion source induction furnace |
| CN109916177B (en) * | 2019-04-03 | 2024-04-16 | 中国科学院近代物理研究所 | ECR ion source induction furnace |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20150816 |
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| EXPY | Termination of patent right or utility model |