CN202018339U - High-temperature temperature measuring system of carbon/carbon product high-temperature treatment furnace - Google Patents
High-temperature temperature measuring system of carbon/carbon product high-temperature treatment furnace Download PDFInfo
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- CN202018339U CN202018339U CN2011200852287U CN201120085228U CN202018339U CN 202018339 U CN202018339 U CN 202018339U CN 2011200852287 U CN2011200852287 U CN 2011200852287U CN 201120085228 U CN201120085228 U CN 201120085228U CN 202018339 U CN202018339 U CN 202018339U
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Abstract
The utility model discloses a high-temperature temperature measuring system of a carbon/carbon (C/C) product high-temperature treatment furnace, comprising a high-temperature temperature measuring tube and an external gas blowing-in system, wherein the high-temperature temperature measuring tube comprises a graphite temperature measuring tube, an optic temperature measuring hole and a metal temperature measuring tube; a soot discharging hole is processed at the bottom of the side wall of the graphite temperature measuring tube; a gas blowing-in hole is processed at the top of the side wall of the metal temperature measuring tube; the gas blowing-in hole and the soot discharging hole are communicated with the inside of the optic temperature measuring hole; and an external gas blowing-in system blows inert gases into the high-temperature temperature measuring tube through the gas blowing-in hole so that soot in the high-temperature temperature measuring tube is discharged through the soot discharging hole. In the utility model, the upper part of the metal temperature measuring tube and the lower part of the graphite temperature measuring tube are respectively provided with one gas blowing-in hole and one soot discharging hole, meanwhile, the external gas blowing-in system is equipped for introducing gases with a certain flow to temperature measuring tube through the gas blowing-in holes so that smoke and dust are discharged to the inside of a furnace body through the soot discharging holes. The smoke and the dust in the temperature measuring tube can be eliminated through the continuous introduction of the inert gases so that a cleaner temperature measuring channel is kept in the temperature measuring tube all the time and an important guarantee is provided for the precise measurement and control of the temperature of the C/C product high-temperature treatment furnace.
Description
Technical field
The utility model relates to a kind of carbon/carbon goods high temperature furnace high temperature temp measuring system, belongs to carbon/carbon compound material and prepares equipment technical field.
Background technology
During the operation of C/C goods high temperature furnace, requirement is in different temperature ranges, heat up with different heating rates, the measurement of temperature and the control of temperature rate all have very significant effects to the stress distribution in each phase interface bonding state, the material in the material, crack distribution etc., and these features can be in the subsequent material preparation process heredity and developing, and then influence the final performance of material and product.Thereby the measurement stability of temperature and degree of accuracy are to weigh a key technical index of C/C goods high temperature furnace performance quality.
The temperature survey of C/C goods high temperature furnace is normally adopted direct measurement and is indirectly measured the method that combines, and platinum rhodium thermocouple ℃ is used in low-temperature space RT～1000, and 1000 ℃～2800 ℃ high temperature section adopt leucoscopes to measure.In general, thermocouple measurement is fairly simple, reliable, and measuring accuracy is higher, can be used for measuring the blow-on temperature when heating up the temperature of section and descent of temperature, but temperature-measuring range is limited; Contactless temperature-measuring is to carry out temperature measuring by the caloradiance of measured object, temperature-measuring range is wide, reaction velocity is also very fast, but be subjected to the influence of the extraneous factors such as emissivity, measuring distance, smog, dust and water vapor of object, therefore measuring error is bigger, particularly for the C-base composte material goods, along with the rising of temperature, the uncombined carbon flue gas (carbon monoxide, carbon dioxide, sulfide and flue dust etc.) that system produces is bigger to the accurate measurement influence of temperature.The research surface, the existence of volume of smoke can cause temperature deviation up to more than 500 ℃, and this obviously is that technological specification institute is unallowed.
Existing carbon/carbon goods high temperature furnace high temperature temp measuring system comprises high temperature temperature tube and optics thermometric, data acquisition and recording system, the optics thermometric, data acquisition and recording system comprises data acquisition-and-recording instrument and optics temperature measurer, the high temperature temperature tube as shown in Figure 1, comprise graphite temperature tube 11, optics thermometer hole 12 and metal temperature tube 13, in C-base composte material goods preparation process, rising along with temperature, uncombined carbon flue gas (the carbon monoxide that system produces, carbon dioxide, sulfide and flue dust etc.) be accumulated in the optics thermometer hole 12, had a strong impact on the temperature measurement accuracy of optics temperature measurer.
The utility model content
The problem that the utility model technology solves is: overcome the deficiencies in the prior art, a kind of uncombined carbon flue gas (comprising carbon monoxide, carbon dioxide, sulfide and flue dust etc.) that can effectively eliminate in the heat radiation pyrometer measuring process is provided, improve C/C goods high temperature furnace high temperature measurement precision, thus the carbon/carbon goods high temperature furnace high temperature temp measuring system of the purpose of the accurate temperature controlling of realization C/C goods high temperature furnace.
Technical solution of the present utility model is: a kind of carbon/carbon goods high temperature furnace high temperature temp measuring system, comprise high temperature temperature tube and optics thermometric, data acquisition and recording system, comprise that also extraneous gas is blown into system, described high temperature temperature tube comprises the graphite temperature tube, optics thermometer hole and metal temperature tube, the sidewall processing flue dust exhaust opening of graphite temperature tube bottom, the sidewall processing gas on metal temperature tube top is blown into the hole, gas is blown into the hole, flue dust exhaust opening and optics thermometer hole internal run-through, extraneous gas is blown into system and is blown into the hole by gas inert gas is blown in the high temperature side temperature pipe, and the flue dust in the high temperature temperature tube is discharged by the flue dust exhaust opening.
Described gas is blown into centerline hole apart from metal temperature tube top 30～60mm, and diameter is less than 5mm, and blowing angle is 45 ± 10 °.
Described flue dust exhaust opening distance between center line graphite temperature tube bottom 30～40mm, diameter is less than 5mm.
It is consistent with flue dust exhaust opening diameter that described gas is blown into the hole.
Described extraneous gas is blown into system and comprises gas bomb and the gas pipe line that is attached thereto.
The utility model compared with prior art beneficial effect is:
(1) the utility model is processed a gas respectively in metal temperature tube top and graphite temperature tube bottom and is blown into hole and flue dust exhaust opening, be equipped with extraneous gas simultaneously and be blown into system, certain flow gas is blown into the hole by gas to be introduced in the temperature tube, make flue gas and dust be discharged to body of heater inside by the bottom exhaust opening, the lasting introducing of inert gas can be eliminated smog and the dust in the high temperature temperature tube, make the inner relatively cleaner thermometric passage that always keeps, thereby provide important leverage for the accurate measurement and the control of C/C goods pyroprocessing furnace temperature;
(2) gas of the present utility model is blown into the machining angle selection in hole, makes the noble gas body that is blown in the high temperature temperature tube be splashed to the air-flow that forms rotation on the metal temperature tube inwall, the smog in the eliminating high temperature temperature tube and the best results of dust;
(3) gas of the present utility model is blown into the Working position and the size Selection of hole and flue dust exhaust opening, help the smog in the high temperature temperature tube and the discharge of dust, can not cause smog and the dust high temperature temperature tubes that enter in the high temperature furnace to influence temperature measurement accuracy more simultaneously;
(4) the utility model 2800 ℃ with interior temperature range in, temperature measurement error is not more than 50 ℃;
(5) the utility model is the accurate measuring system of temperature of the high-temperature region (＞1000 ℃) in intensification of C/C goods high temperature furnace and the temperature-fall period, also can be used for the accurate temperature measurement of other high-temperature service;
(6) the utility model is applicable to C/C goods high temperature furnace such as top temp.-measuring type, side temp.-measuring type and the bottom temp.-measuring type etc. at different thermometrics position.
Description of drawings
Fig. 1 is existing high temperature thermometric tubular construction synoptic diagram;
Fig. 2 is the utility model high temperature thermometric tubular construction synoptic diagram;
Fig. 3 is for adopting top of the present utility model temp.-measuring type carbon/carbon goods high temperature furnace;
Fig. 4 is for adopting side of the present utility model temp.-measuring type carbon/carbon goods high temperature furnace;
Fig. 5 is for adopting bottom of the present utility model temp.-measuring type carbon/carbon goods high temperature furnace;
Wherein among Fig. 3～Fig. 5,2-body of heater, 3-carbon/carbon sample, 4-gas bomb, smog in the 5-high temperature furnace and dust, 6-data acquisition-and-recording instrument, 7-optics temperature measurer, 8-gas pipe line, 21-bell, 22-insulation layer, 23-sealing gasket.
Embodiment
The high temperature section temperature survey of C/C goods high temperature furnace adopts leucoscope to obtain, be with in the middle of the graphite-pipe insertion body of heater sample specifically, make the synchronous induction heating of graphite temperature tube and sample, be connected with the graphite temperature tube by body of heater external metallization temperature tube, adopt leucoscope that graphite-pipe bottom radiation intensity is measured, be converted to required temperature data at last.Yet, in high-temperature process, material can discharge a large amount of uncombined carbon flue gas and dust, these flue dust can enter between insulation quilt and the bell by insulation quilt and sealing gasket, also can enter leucoscope measurement passage in a large number is graphite temperature tube inside, thus the measuring accuracy of adversely effecting temp.
The utility model improves existing temp measuring system structure, mainly is to have eliminated by architecture advances to measure the smog and the dust of passage in the measuring process, thereby guarantees to measure passage cleaning, unimpeded.
The utility model comprises that high temperature temperature tube, extraneous gas are blown into system and optics thermometric, data acquisition and recording system shown in Fig. 2～5.The high temperature temperature tube as shown in Figure 2, comprise graphite temperature tube 11, optics thermometer hole 12 and metal temperature tube 13, the sidewall processing flue dust exhaust opening 15 of graphite temperature tube 11 bottoms, metal temperature tube 13 upper portion side wall processing gas are blown into hole 14, gas is blown into hole 14, flue dust exhaust opening 15 and optics thermometer hole 12 internal run-throughs, extraneous gas is blown into system and is blown into hole 14 by gas inert gas is blown in the high temperature side temperature pipe, and the flue dust in the high temperature temperature tube is discharged by flue dust exhaust opening 15.Extraneous gas is blown into system and comprises gas bomb 4 and the gas pipe line 8 that is attached thereto.Optics thermometric, data acquisition and recording system do not improve, and be identical with existing apparatus, comprises data acquisition-and-recording instrument 6 and optics temperature measurer 7.
Gas is blown into hole 14 distance between center line metal temperature tube 13 tops, 30～60mm, and diameter is less than 5mm, and blowing angle is 45 ± 10 °; Flue dust exhaust opening 15 distance between center line graphite temperature tube 11 bottoms, 30～40mm, diameter is lateral aperture less than 5mm.The selection that gas is blown into 45 ± 10 ° of hole 14 blowing angles is in order to make the noble gas body that is blown in the high temperature temperature tube be splashed to the air-flow that forms rotation on the metal temperature tube inwall, thereby improves the eliminating effect of smog and dust in the high temperature temperature tube.Flue dust exhaust opening 15 is apart from the consideration of determining to mainly contain two aspects of 30～40mm position, graphite temperature tube bottom: the one, for smog and the dust that reduces in the intermediate frequency furnace enters in the high temperature temperature tube, so flue dust exhaust opening 15 can not be too near to graphite temperature tube bottom; The 2nd, for the ease of smog in the high temperature temperature tube and dust are drained, make the relatively cleaner thermometric passage of the inner maintenance of high temperature temperature tube, thereby improved the temperature measurement accuracy of C/C goods high temperature furnaces.
It is consistent with flue dust exhaust opening 15 diameters that gas is blown into hole 14, helps like this making keeping pressure stable in metal temperature tube and the graphite temperature tube, prevents from because of pressure changes temperature measurement accuracy to be caused negative effect.
The utility model principle of work: in the high-temperature process,, the certain flow inert gas is blown into the hole by gas introduces in the high temperature temperature tube, make flue gas and dust be discharged to body of heater inside by the flue dust exhaust opening by the extraneous gas input system.The lasting introducing of inert gas can be eliminated smog and the dust in the temperature tube, makes the inner relatively cleaner thermometric passage that always keeps, thereby provides important leverage for the accurate measurement and the control of C/C goods pyroprocessing furnace temperature.
Embodiment 1
Be illustrated in figure 3 as and adopt top of the present utility model temp.-measuring type C/C goods pyroprocessing furnace system.
Concrete using method is as follows:
1, low-temperature zone (RT～100 ℃) adopts platinum rhodium thermocouple directly to measure, and the inert gas input system is closed;
2, when temperature rises to more than 1000 ℃, measuring system switches to the leucoscope indirect type and measures, the inert gas input system is opened, inert gas is by gas pipe line input metal temperature tube, graphite temperature tube, and enter intermediate frequency furnace inside by graphite temperature tube bottom, absorb and discharge by the intermediate frequency furnace filtration unit at last, thereby form a kind of circulating exhaust system, guaranteed that inner smog and the dust that produces of temperature tube in time discharged, make the thermometric passage unimpeded, clean, thereby can obtain the higher temperature measuring data of degree of accuracy;
3, in the temperature-fall period, when temperature was reduced to below 1000 ℃, the inert gas input system worked on 1～2 hour, guarantee to eliminate the residual air influence, close gas pipe line again, temp measuring system switches to platinum rhodium thermometric, at last by thermometric structure control blowing out and blow-on time.
The utility model patent also can be used for side temp.-measuring type C/C goods high temperature furnace high temperature temp measuring system, and as Fig. 4, concrete using method is with embodiment 1.
The utility model patent also can be used for bottom temp.-measuring type C/C goods high temperature furnace high temperature temp measuring system, and as Fig. 5, concrete using method is with embodiment 1.
Adopt the utility model that verification experimental verification has been carried out in the temperature survey in the processing of C/C material product high temperature graphitization.Concrete test condition and method are as follows:
Material: C/C material, 300Kg;
Temperature range: RT～2800 ℃;
Processing time: 50h;
In the temperature-rise period, chosen different temperature points and carried out temperature survey, to test thermometric effect of the present utility model.Concrete test result is as follows:
By test result as can be seen, at different design temperatures, common temp measuring system and the performance of the utility model temp measuring system test result differ, and along with the rising of temperature, both test the temperature difference and show as increase trend, and in the time of 2500 ℃, temperature difference is up to 554 ℃.This has confirmed that also smog and dust to the temperature survey accuracy, along with the rising flue dust of temperature is cumulative, have had a strong impact on thermometric accuracy.
Above experimental result has confirmed accuracy of the present utility model and validity.
The unspecified part of the utility model belongs to general knowledge as well known to those skilled in the art.
Claims (5)
1. carbon/carbon goods high temperature furnace high temperature temp measuring system, comprise high temperature temperature tube and optics thermometric, data acquisition and recording system, it is characterized in that: comprise that also extraneous gas is blown into system, described high temperature temperature tube comprises graphite temperature tube (11), optics thermometer hole (12) and metal temperature tube (13), the sidewall processing flue dust exhaust opening (15) of graphite temperature tube (11) bottom, the sidewall processing gas on metal temperature tube (13) top is blown into hole (14), gas is blown into hole (14), flue dust exhaust opening (15) and optics thermometer hole (12) internal run-through, extraneous gas is blown into system and is blown into hole (14) by gas inert gas is blown in the high temperature side temperature pipe, and the flue dust in the high temperature temperature tube is discharged by flue dust exhaust opening (15).
2. a kind of carbon according to claim 1/carbon goods high temperature furnace high temperature temp measuring system, it is characterized in that: described gas is blown into hole (14) distance between center line metal temperature tube (13) top 30～60mm, diameter is less than 5mm, and blowing angle is 45 ± 10 °.
3. according to the described a kind of carbon of claim 1/carbon goods high temperature furnace high temperature temp measuring system, it is characterized in that: described flue dust exhaust opening (15) distance between center line graphite temperature tube (11) bottom 30～40mm, diameter is less than 5mm.
4. a kind of carbon according to claim 1/carbon goods high temperature furnace high temperature temp measuring system, it is characterized in that: it is consistent with flue dust exhaust opening (15) diameter that described gas is blown into hole (14).
5. a kind of carbon according to claim 1/carbon goods high temperature furnace high temperature temp measuring system, it is characterized in that: described extraneous gas is blown into the gas pipe line (8) that system comprises gas bomb (4) and is attached thereto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200852287U CN202018339U (en) | 2011-03-28 | 2011-03-28 | High-temperature temperature measuring system of carbon/carbon product high-temperature treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200852287U CN202018339U (en) | 2011-03-28 | 2011-03-28 | High-temperature temperature measuring system of carbon/carbon product high-temperature treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202018339U true CN202018339U (en) | 2011-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200852287U Expired - Lifetime CN202018339U (en) | 2011-03-28 | 2011-03-28 | High-temperature temperature measuring system of carbon/carbon product high-temperature treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202018339U (en) |
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2011
- 2011-03-28 CN CN2011200852287U patent/CN202018339U/en not_active Expired - Lifetime
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111026 |