CN108680269A - Make the platinum rhodium thermocouple high temperature furnace of the controlled atmosphere of auxiliary thermal source with light - Google Patents
Make the platinum rhodium thermocouple high temperature furnace of the controlled atmosphere of auxiliary thermal source with light Download PDFInfo
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- CN108680269A CN108680269A CN201810311584.2A CN201810311584A CN108680269A CN 108680269 A CN108680269 A CN 108680269A CN 201810311584 A CN201810311584 A CN 201810311584A CN 108680269 A CN108680269 A CN 108680269A
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- thermocouple
- light
- thermal source
- auxiliary thermal
- platinum rhodium
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
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Abstract
The invention discloses the platinum rhodium thermocouple high temperature furnaces for the controlled atmosphere for making auxiliary thermal source with light, it include the furnace body with burner hearth, the burner hearth is closed, light auxiliary thermal source device, thermocouple heating temperature measuring equipment are provided in burner hearth, it is connected to respectively with burner hearth equipped with air inlet, gas outlet on furnace body, to be passed through gas or discharge gas into burner hearth；Watch window is set on furnace body, to observe furnace body internal furnace；The light auxiliary thermal source system includes generating the light bulb of heat, and the platinum rhodium thermocouple heating temperature measuring equipment includes platinum-rhodium alloy thermocouple.The high temperature furnace that the present invention obtains, using light as auxiliary thermal source so that auxiliary thermal energy quick response more rapidly controls the environment temperature around thermocouple；Light auxiliary thermal source is added, has the advantages that temperature-compensating corresponding speed is fast so that platinum rhodium thermocouple temperature field surrounding is rapidly achieved uniform and stable state, and it is to compensate the slow disadvantage of heat source response speed to overcome with resistance wire.
Description
Technical field
The present invention relates to thermocouple high-temperature furnace device field, specially a kind of controlled atmosphere for making auxiliary thermal source with light
Platinum-rhodium alloy thermocouple high temperature furnace.
Background technology
Heated filament law technology refers to not only regarding same root double platinum rhodium thermocouple wire as heating element, but also as temperature element.It will
Measured object is placed directly on the hot junction of thermocouple, presses pre- constant temperature speed heating, cooling with computer system control thermocouple, and same
When acquire thermocouple thermoelectrical potential, data by calculate and linearization process after send computer to, computer is with graphics context mode
Directly display out the temperature value of thermocouple.Pass through test sample state change under image capturing system home position observation hot conditions.
It is referred to as micro thermocouple high temperature furnace using the device that platinum rhodium thermocouple heats.Existing platinum rhodium thermocouple high temperature furnace
There are the problem of be mainly：
1. non-closed no auxiliary thermal source formula platinum rhodium thermocouple high temperature furnace, simple in structure, but experiment atmosphere can not be arranged, due to nothing
Auxiliary thermal source, environment is big with thermoelectric, it cannot be guaranteed that the uniformity of Experimental Area temperature, and work(needed for platinum rhodium thermocouple
For rate compared with there is the platinum rhodium thermocouple high temperature furnace of auxiliary heating source for heating big, maximum heating temperature can only achieve 1500 DEG C or so, if into
One step promotes temperature and be easy to cause the fusing of platinum-rhodium wire thermocouple.
2. non-closed resistance auxiliary heating type platinum rhodium thermocouple high temperature furnace can not carry out experiment atmosphere since its is non-closed
Setting, and since resistance assists heating corresponding speed slow, can not quickly adjust furnace inner environment temperature.
3. closed no auxiliary thermal source formula platinum rhodium thermocouple high temperature furnace, disadvantage is no auxiliary thermal source, environment and thermocouple temperature
Poor big, it cannot be guaranteed that the uniformity of Experimental Area temperature, power is big needed for heated filament, is unable to reach higher temperature, be easy to cause platinum
Rhodium silk thermocouple is broken.
4. closed resistance auxiliary heating type platinum rhodium thermocouple high temperature furnace, the advantages of combining 2,3 platinum rhodium thermocouple high temperature furnace,
But there are still the problems that resistance assists heating control thermal velocity slow.
Invention content
In view of the above shortcomings of the prior art, the technical problem to be solved by the present invention is to the presence of platinum rhodium thermocouple high temperature furnace
Resistance auxiliary heating control thermal velocity it is slow and high temperature furnace is not closed can not carry out the setting of experiment atmosphere, can not be quickly in regulating stove
Environment temperature provides a kind of platinum rhodium thermocouple high temperature furnace：
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions：It is a kind of with light make auxiliary thermal source can
The platinum rhodium thermocouple high temperature furnace for controlling atmosphere, includes the furnace body with burner hearth, which is characterized in that the burner hearth is closed, in stove
Be provided in thorax light auxiliary thermal source device, thermocouple heating temperature measuring equipment, on furnace body be equipped with air inlet, gas outlet respectively with
Burner hearth is connected to, to be passed through gas or discharge gas into burner hearth；Watch window is set on furnace body, to observe stove in furnace body
Thorax；The light auxiliary thermal source system includes generating the light bulb of heat, and the platinum rhodium thermocouple heating temperature measuring equipment includes platinum rhodium
Alloy thermocouple.
Further feature is that the light auxiliary thermal source system further includes focusing lampshade, by focusing lampshade by light
It focuses on around platinum rhodium thermocouple.
The thermocouple heating temperature measuring equipment further includes thermocouple binding post, and thermocouple binding post is made by conductive metal,
Thermocouple heats temperature measuring equipment and is arranged on thermocouple binding post.
Light auxiliary thermal source device is located at lower furnace portion or side, thermocouple heating temperature measuring equipment be located at burner hearth middle part or on
Portion, the light that light bulb is sent out are projected, are irradiated to around platinum rhodium thermocouple from the bottom up or from side.
The watch window is heat safe glass material, and glass is connected with furnace body using high-temperature resistant seal ring.
The focusing lampshade is metal material, and inner surface has film plating layer.
Further include temperature control equipment, light auxiliary thermal source device, thermocouple heating temperature measuring equipment are controlled with temperature respectively
Device connects, to control the electric thermo-couple temperature and the light bulb of light auxiliary thermal source device of thermocouple heating temperature measuring equipment simultaneously
Power, the power for controlling, adjusting the light bulb of light auxiliary thermal source device heat the platinum rhodium thermocouple temperature of temperature measuring equipment with thermocouple
Degree is accordingly changed.
Compared with prior art, the platinum-rhodium alloy thermocouple high temperature furnace that the present invention obtains, has the advantages that：
1, using light as auxiliary thermal source so that auxiliary thermal energy quick response more rapidly controls the environment around thermocouple
Temperature；Light auxiliary thermal source is added, has the advantages that temperature-compensating corresponding speed is fast so that platinum rhodium thermocouple temperature field surrounding
It is rapidly achieved uniform and stable state, it is to compensate the slow disadvantage of heat source response speed to overcome with resistance wire.
2, using light as auxiliary thermal source, ambient brightness is enhanced, and since auxiliary thermal source light is projected simultaneously by lower section
Through melting sample on thermocouple so that observation image is more three-dimensional clear；
3, it is slow to solve resistance auxiliary heating control thermal velocity existing for the above platinum rhodium thermocouple high temperature furnace for thermocouple high temperature furnace of the present invention
The problem of, keep platinum rhodium thermocouple high temperature furnace environment temperature temperature control rapider, and thermocouple high temperature furnace is allow to reach 1650
DEG C maximum operation (service) temperature.
4, the present invention has the advantages that simple and reasonable, and can carry out the reality of the high temperature under various atmosphere through the invention
It tests.
Description of the drawings
Fig. 1 is overall structure front view of the present invention；
Fig. 2 is overall structure vertical view of the present invention；
Fig. 3 is that the present invention is tested the image obtained in the process；It is 1600 DEG C of molten condition schematic diagrames and 1250 DEG C respectively
Generate crystalline state figure；
Fig. 4 is platinum rhodium thermocouple temperature control curve.
In figure：1- thermocouple high temperature furnace main bodies；2- light auxiliary thermal source devices；3- thermocouples heat temperature measuring equipment；4- into
Gas port；The gas outlets 5-；6- watch windows；7- halogen lamp light bulbs；8- focusing lampshades；9- platinum-rhodium alloy thermocouples；10- thermoelectricity couples
Terminal.
Specific implementation mode
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
The present invention provides one kind technical solution：A kind of thermocouple high temperature of controlled atmosphere that making auxiliary thermal source with light
Stove includes the furnace body 1 with burner hearth, and light auxiliary thermal source device 2, thermocouple heating temperature measuring equipment 3, institute are provided in burner hearth
It is closed furnace body to state furnace body 1, and burner hearth is closed（It is closed）；On furnace body 1 be equipped with air inlet 4, gas outlet 5 respectively with stove
Thorax is connected to, to be passed through gas or discharge gas into burner hearth, to control atmosphere in burner hearth；It the gas outlet 5 can with air inlet 4
With using the Quick connecting pipe fitting gas connector of identical bore, fast and easy connection；Watch window 6 is set on furnace body 1, to observe furnace body
The case where 1 internal furnace；The light auxiliary thermal source device 2 includes the light bulb 7 for shining and generating heat（Halogen lamp）And focus lamp
Cover 8, light bulb 7 be used as heat source, the heat sent out that is powered as heat compensation source, and by focusing lampshade 8 by light focusing in platinum
Around rhodium thermocouple 9, the uniformity of 9 ambient temperature of platinum rhodium thermocouple is increased substantially, is rapidly achieved uniform, stable state.It is poly-
Burnt lampshade 8 selects metal material, and inner surface uses coating process, there is film plating layer.The thermocouple heating temperature measuring equipment 3 wraps
Platinum-rhodium alloy thermocouple 9 and thermocouple binding post 10 are included, thermocouple binding post 10 is made by conductive metal, platinum-rhodium alloy
Thermocouple 9 is arranged on thermocouple binding post 10.
Light auxiliary thermal source device 2 is usually located at lower furnace portion or side, and thermocouple heating temperature measuring equipment 3 is usually located at stove
In the middle part of thorax or top, the light that light bulb 7 is sent out are projected, are irradiated to around platinum rhodium thermocouple 9, and penetrate from the bottom up or from side
Sample is melted on thermocouple so that observation image is more three-dimensional clear, is especially advantageous for looking into platinum rhodium thermoelectricity from watch window 6
Fusing situation in idol 9 and thermocouple after sample heating, accurately grasps heating progress at any time.
In this embodiment, the Φ 0.5mm thermocouples welded by platinum rhodium 6 and 30 B alloy wire of platinum rhodium are selected, and are fixed on thermoelectricity
10 on thermo wires binding post.
It is passed through argon gas 30s from air inlet 4, makes in stove to be in argon gas atmosphere, and keep continuous aeration status.
Further include temperature control equipment, light auxiliary thermal source device 2, thermocouple heating temperature measuring equipment 3 respectively with temperature control
Device connection processed, to control the lamp that thermocouple heats the electric thermo-couple temperature and light auxiliary thermal source device of temperature measuring equipment 3 simultaneously
The power of bubble 7,7 power of light bulb that can control, adjust light auxiliary thermal source device 2 heat the platinum of temperature measuring equipment 3 with thermocouple
Rhodium thermocouple temperature is accordingly changed, and faster heating rate and heating uniformity are obtained；Platinum rhodium thermocouple temperature control curve is such as
Shown in Fig. 4 so that thermocouple high temperature furnace reaches 1600 DEG C, and keeps the temperature 30s, is then down to 1250 with the maximum speed of 250 DEG C/s
DEG C experimental temperature.The temperature control equipment may be used prior art realization, not be described further.
Sample modified-image at 1600 DEG C, 1250 DEG C is acquired by watch window 6 by image capturing system, as shown in Figure 3.
Fig. 3 is respectively that 1600 DEG C of samples melt image completely, 1250 DEG C of crystallizations grow image, wherein in crystal growth image
The region that white line identifies is crystal region.
Finally, it should be noted that technical side the above examples are only used to illustrate the technical scheme of the present invention and are not limiting
Case, although applicant describes the invention in detail with reference to preferred embodiment, those skilled in the art should manage
Solution, those are modified or replaced equivalently technical scheme of the present invention, without departing from the objective and range of the technical program,
It is intended to be within the scope of the claims of the invention.
Claims (9)
- Include the furnace body with burner hearth 1. making the platinum rhodium thermocouple high temperature furnace of the controlled atmosphere of auxiliary thermal source with light（1）, special Sign is that the burner hearth is closed, and light auxiliary thermal source device is provided in burner hearth（2）, thermocouple heat temperature measuring equipment （3）, in furnace body（1）It is equipped with air inlet（4）, gas outlet（5）It is connected to respectively with burner hearth, to be passed through gas or row into burner hearth Go out gas；In furnace body（1）Upper setting watch window（6）, to observe furnace body（1）Internal furnace；The light auxiliary thermal source system （2）Light bulb including generating heat（7）, the platinum rhodium thermocouple heating temperature measuring equipment（3）Including platinum-rhodium alloy thermocouple（9）.
- 2. the platinum rhodium thermocouple high temperature furnace of the controlled atmosphere according to claim 1 for making auxiliary thermal source with light, feature It is, the light auxiliary thermal source system（2）It further include focusing lampshade（8）, pass through focusing lampshade（8）By light focusing in platinum rhodium Thermocouple（9）Around.
- 3. the platinum rhodium thermocouple high temperature furnace of the controlled atmosphere according to claim 1 or 2 for making auxiliary thermal source with light, special Sign is that the thermocouple heats temperature measuring equipment（3）It further include thermocouple binding post（10）, thermocouple binding post（10）By conduction Metal makes, and thermocouple heats temperature measuring equipment（3）It is arranged in thermocouple binding post（10）On.
- 4. the platinum rhodium thermocouple high temperature furnace of the controlled atmosphere according to claim 1 or 2 for making auxiliary thermal source with light, special Sign is, light auxiliary thermal source device（2）Positioned at lower furnace portion or side, thermocouple heats temperature measuring equipment（3）In burner hearth Portion or top, light bulb（7）The light sent out projects from the bottom up or from side, is irradiated to platinum rhodium thermocouple（9）Around.
- 5. the platinum rhodium thermocouple high temperature furnace of the controlled atmosphere according to claim 3 for making auxiliary thermal source with light, feature It is, light auxiliary thermal source device（2）Positioned at lower furnace portion or side, thermocouple heats temperature measuring equipment（3）In the middle part of burner hearth Or top, light bulb（7）The light sent out projects from the bottom up or from side, is irradiated to platinum rhodium thermocouple（9）Around.
- 6. the platinum rhodium thermocouple high temperature furnace of the controlled atmosphere for making auxiliary thermal source with light according to claim 1,2, special Sign is, the watch window（6）For heat safe glass material, and glass and furnace body（1）It is connected using high-temperature resistant seal ring.
- 7. the platinum rhodium thermocouple high temperature furnace of the controlled atmosphere according to claim 2 for making auxiliary thermal source with light, feature It is, the focusing lampshade（8）Metal material is selected, and inner surface has film plating layer.
- 8. the platinum rhodium thermocouple high temperature furnace of the controlled atmosphere for making auxiliary thermal source with light according to claim 1,2, special Sign is, further includes temperature control equipment, light auxiliary thermal source device（2）, thermocouple heat temperature measuring equipment（3）Respectively with temperature Control device connects, and temperature measuring equipment is heated to control thermocouple simultaneously（3）Electric thermo-couple temperature and light bulb（7）Power, control System, adjustment light bulb（7）Power with thermocouple heat temperature measuring equipment（3）Platinum rhodium thermocouple temperature accordingly changed.
- 9. the platinum rhodium thermocouple high temperature furnace of the controlled atmosphere according to claim 3 for making auxiliary thermal source with light, feature It is, further includes temperature control equipment, light auxiliary thermal source device（2）, thermocouple heat temperature measuring equipment（3）Respectively with temperature control Device connection processed heats temperature measuring equipment to control thermocouple simultaneously（3）Electric thermo-couple temperature and light bulb（7）Power, control, Adjust light bulb（7）Power with thermocouple heat temperature measuring equipment（3）Platinum rhodium thermocouple temperature accordingly changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810311584.2A CN108680269A (en) | 2018-04-09 | 2018-04-09 | Make the platinum rhodium thermocouple high temperature furnace of the controlled atmosphere of auxiliary thermal source with light |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810311584.2A CN108680269A (en) | 2018-04-09 | 2018-04-09 | Make the platinum rhodium thermocouple high temperature furnace of the controlled atmosphere of auxiliary thermal source with light |
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| CN108680269A true CN108680269A (en) | 2018-10-19 |
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| CN201810311584.2A Pending CN108680269A (en) | 2018-04-09 | 2018-04-09 | Make the platinum rhodium thermocouple high temperature furnace of the controlled atmosphere of auxiliary thermal source with light |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112179661A (en) * | 2020-09-18 | 2021-01-05 | 中国航发四川燃气涡轮研究院 | Heating device for wheel disc test |
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| CN102866175A (en) * | 2012-09-10 | 2013-01-09 | 浙江大学 | Boron particle burning observing device for realizing ignition by utilizing high-pressure xenon lamp |
| CN105241915A (en) * | 2015-09-23 | 2016-01-13 | 中南大学 | Device used for testing performance of high temperature metallurgy slag, and application method thereof |
| CN107290225A (en) * | 2017-07-11 | 2017-10-24 | 吉林大学 | For in situ and optical monitoring and the high-temperature heating chamber of synchrotron radiation |
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Cited By (1)
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| CN112179661A (en) * | 2020-09-18 | 2021-01-05 | 中国航发四川燃气涡轮研究院 | Heating device for wheel disc test |
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Application publication date: 20181019 |