CN2057751U - Fast thermometric thermal resistance - Google Patents
Fast thermometric thermal resistance Download PDFInfo
- Publication number
- CN2057751U CN2057751U CN 89214155 CN89214155U CN2057751U CN 2057751 U CN2057751 U CN 2057751U CN 89214155 CN89214155 CN 89214155 CN 89214155 U CN89214155 U CN 89214155U CN 2057751 U CN2057751 U CN 2057751U
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- China
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- fast
- thermal resistance
- temperature measurement
- thermometric
- thermal resistor
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Abstract
The utility model relates to a fast thermometric thermal resistor, belonging to a thermometric device. The fast thermometric thermal resistor is principally suitable for fast measuring molten steel temperature and fast setting carbon at a steel-smelting process. The utility model is characterized in that a thermal resistor is made of single refractory metal or alloy wires, and the thermal resistor replaces a platinum-rhodium thermocouple which is often adopted. By the coincidence relation of resistance values and temperature, a reference table is made, a secondary meter is matched, and then temperature value can be reflected. The thermometric device can be used for a short term in the condition of more than 1600 DEG C. The utility model has the advantages of low cost, high precision, etc.; the fast thermometric thermal resistor can stochastically correct errors and adjust zero points.
Description
The utility model belongs to the thermometric device.Mainly be applicable to the molten steel quick temperature measurement in the steelmaking process and decide carbon fast.
At present, the domestic and international quick temperature measurement of molten steel and decide carbon and all adopt platinum rhodium or Wolfram rhenium heat electric couple etc. in steelmaking process.Though they can satisfy request for utilization on performance, but still have the following shortcoming: (1) platinum, rhodium etc. belong to rare element, particularly China, thus these thermopair cost costlinesses, the price height; (2) complex structure.It is processed, is welded by two kinds of different materials, and the branch of positive and negative electrode is arranged, and can not obscure; (3) the thermopair precision depends on the machining precision of thermo wires silk material to a great extent, is difficult to according to secondary instrument comprehensive regulation error.
The purpose of this utility model is to provide a kind of cost low, simple in structure, and the high quick temperature measurement device of precision.
According to above-mentioned purpose, the utility model is according to the thermal resistance temperature-measurement principle, and promptly the size of resistance value changes with the rising (or decline) of temperature, adopts the single filaments of refractory metal such as tungsten, molybdenum, rhenium and alloy thereof to make thermal resistance, replaces the thermo wires of thermopair.
Because resistance value changes with variation of temperature, therefore, the corresponding relation of resistance value and temperature is made the branch kilsyth basalt with the canonical measure utensil, makes resistance change change the mv corresponding tables into, carries out calibration, supporting second test instrument so just can reflect Temperature numerical.
The thermal resistance made from tungsten, molybdenum, rhenium etc. and alloy thereof can use more than 1600 ℃ in short-term, thus when being applicable to steel-making fully by its made thermometric device to the quick temperature measurement of molten steel with decide carbon fast.
With existing quick temperature measurement device---platinum rhodium or Wolfram rhenium heat electric couple are compared, the utlity model has following advantage:
1. cost is low, only is 1/10 of platinum rhodium idol type as every price.About 1,200 ten thousand of the annual required quick temperature measurement element of China.Replace even type, obvious economic with the utility model.
2. temperature-measuring range is wide, can be used for-275 ℃～2500 ℃.
3. good linearity, K is a definite value.
4. right and wrong are compensation, do not need compensating wire.
5. correction error and adjust zero point etc. at random.
6. the precision height can reach 0.10%～0.05%
Description of drawings
Accompanying drawing is the structural representation of the utility model quick temperature measurement thermal resistance.
Among the figure, 1 is thermal resistance, i.e. thermal sensing element; 2 is quartz ampoule, prevents the thermal resistance short circuit; 3 is tin hat, prevents the etch of slag; 4 are lead-in wire; 5 are high temperature encapsulation filler (as Al2O3, MgO, silica sand etc.); 6 is high temperature resistant sleeve pipe, and its effect is the protection lead-in wire; 7 is big paper tube, the protection Testing gun; 8 is conette; 9 is plastic stent; 10 is test plug.Lead-in wire 4 is attached on the plastic stent 9, conette 8 supporting plastic stents 9, and test plug 10 joins with the lead-in wire 4 that is attached on the plastic stent 9.Test plug is contained in the top of Testing gun.
Thermal resistance is made with refractory alloy silks such as tungsten filament, molybdenum filament, tungsten rhenium alloy wire or tungsten-molybdenum alloy silks, and its diameter is φ 8～μ m.Above-mentioned silk material coiling type tubulose, processing typing after pickling.According to temperature-measuring range, the silk material can be cut into the thermal resistance of 100～500 ohm of scope different resistance values, in order to selecting for use.After resistance is selected, be placed in the quartz ampoule, and lead-in wire, be packaged into required thermal resistance.
Claims (5)
1, a kind of quick temperature measurement device is characterized in that it encapsulates filler by thermal resistance, quartz ampoule, tin hat, insulating sleeve, high temperature protection sleeve pipe, test plug, paper tube, high temperature resistance and lead-in wire is formed.
2, quick temperature measurement device according to claim 1 is characterized in that thermal resistance made by refractory alloy silks such as tungsten filament, molybdenum filament, tungsten-molybdenum alloy silk or tungsten rhenium alloy wires.
3, quick temperature measurement device according to claim 2, the diameter that it is characterized in that refractory alloy silk material are 8～50 μ m.
4,, it is characterized in that hot water radiation wire needs coiling line style tubulose, processing typing after pickling according to claim 1 and 2 described quick temperature measurement devices.
5, according to claim 2 and 3 described quick temperature measurement devices, it is characterized in that, refractory alloy silk material can be cut into the thermal resistance of different resistance values between 100～500 ohm according to temperature-measuring range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89214155 CN2057751U (en) | 1989-07-22 | 1989-07-22 | Fast thermometric thermal resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89214155 CN2057751U (en) | 1989-07-22 | 1989-07-22 | Fast thermometric thermal resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2057751U true CN2057751U (en) | 1990-05-30 |
Family
ID=4869994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89214155 Withdrawn CN2057751U (en) | 1989-07-22 | 1989-07-22 | Fast thermometric thermal resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2057751U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449812C (en) * | 2003-12-19 | 2009-01-07 | 上海平安自动化仪表厂 | Manufacturing and using method of temperature thermocouple for power station and products produced thereby |
| US7569798B2 (en) | 2003-11-28 | 2009-08-04 | E.G.O. Elektro-Geraetebau Gmbh | Temperature sensor based on resistance measurement and radiant heater with such a temperature sensor |
| CN101603862B (en) * | 2009-06-27 | 2010-10-20 | 王文学 | Full automatic fast thermocouple assembling machine |
| CN103698042A (en) * | 2013-12-03 | 2014-04-02 | 天津航空机电有限公司 | High-temperature temperature sensor |
| CN113654689A (en) * | 2021-08-11 | 2021-11-16 | 山西大学 | Contact measurement method for high-temperature gas temperature based on steady-state energy flow balance relation |
-
1989
- 1989-07-22 CN CN 89214155 patent/CN2057751U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7569798B2 (en) | 2003-11-28 | 2009-08-04 | E.G.O. Elektro-Geraetebau Gmbh | Temperature sensor based on resistance measurement and radiant heater with such a temperature sensor |
| CN100449812C (en) * | 2003-12-19 | 2009-01-07 | 上海平安自动化仪表厂 | Manufacturing and using method of temperature thermocouple for power station and products produced thereby |
| CN101603862B (en) * | 2009-06-27 | 2010-10-20 | 王文学 | Full automatic fast thermocouple assembling machine |
| CN103698042A (en) * | 2013-12-03 | 2014-04-02 | 天津航空机电有限公司 | High-temperature temperature sensor |
| CN103698042B (en) * | 2013-12-03 | 2016-09-14 | 天津航空机电有限公司 | A kind of high temperature sensor |
| CN113654689A (en) * | 2021-08-11 | 2021-11-16 | 山西大学 | Contact measurement method for high-temperature gas temperature based on steady-state energy flow balance relation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |