CN201166593Y - Oxygen-determining instrument for measuring temperature of molten steel - Google Patents
Oxygen-determining instrument for measuring temperature of molten steel Download PDFInfo
- Publication number
- CN201166593Y CN201166593Y CNU200820065667XU CN200820065667U CN201166593Y CN 201166593 Y CN201166593 Y CN 201166593Y CN U200820065667X U CNU200820065667X U CN U200820065667XU CN 200820065667 U CN200820065667 U CN 200820065667U CN 201166593 Y CN201166593 Y CN 201166593Y
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- CN
- China
- Prior art keywords
- oxygen
- electromotive force
- temperature
- input block
- molten steel
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Abstract
The utility model relates to a temperature measuring and oxygen-measuring instrument of molten steel, which is composed of a fast thermocouple (1), a zirconia oxygen-measuring head (2), a measuring gun and an analyzing and displaying instrument (5), and a standard signal detector, wherein the fast thermocouple (1) and the zirconia oxygen-measuring head are sealed in the same probe, a plug for outcoming signal thereof is connected with an input socket of the measuring gun, the receiving terminal of the input socket of the measuring gun is further respectively connected with a temperature potential input unit (3) and an oxygen potential input unit (4) of the analyzing and displaying instrument (5) through a compensating conducting wire and an oxygen potential conducting wire, the analyzing and displaying instrument comprises the temperature potential input unit (3), the oxygen potential input unit (4), a single chip microcomputer (6) and an interface output circuit, wherein the temperature potential input unit (3) and the oxygen potential input unit (4) are respectively connected with the input end of the single chip microcomputer (6) through an analogue/digital converter A/D. The utility model has the advantages of convenient use, rapid speed of measuring the temperature of molten steel and the oxygen activity, accuracy, and the instrument can effectively improve the product rate of steel products and is suitable for being used in the steel-smelting field.
Description
Technical field
The utility model relates to the steel-making detecting instrument, particularly a kind of measuring temp of molten steel apparatus for determination of oxygen.
Background technology
In the smelting iron and steel industry, the molten steel that molten steel is irritated in the bag carries out the important technical parameter that quick temperature measurement is steel-making, also is another important technical parameter to the detection and the control of the oxygen activity in the molten steel, and the lumber recovery that can improve molten steel is more than 5%.Rapid measuring the temperature of melting steel instrument function of the prior art is single, energy measurement liquid steel temperature only, and the oxygen activity in the energy measurement molten steel not, and mostly be analogue instrument.
Summary of the invention
The purpose of this utility model provides a kind of easy to use, tests measuring temp of molten steel apparatus for determination of oxygen accurately.
Described measuring temp of molten steel apparatus for determination of oxygen, it is characterized in that: it is by fast thermocouple 1 and zirconia oxygen determination head 2, survey rifle and analyze display instrument 5, the standard signal verifier is formed, described quick thermocouple 1 and zirconia oxygen determination head are encapsulated in the same gauge head, its output plug signal is connected with the input socket of surveying rifle, and the input socket terminals of surveying rifle also are connected with temperature electromotive force input block 3, the oxygen electromotive force input block 4 of analyzing display instrument 5 with oxygen electromotive force lead by compensating wire respectively; Described analysis display instrument 5 comprises temperature electromotive force input block 3, oxygen electromotive force input block 4, single-chip microcomputer 6, interface output circuit; Temperature electromotive force, oxygen electromotive force input block 3,4 are connected by the input end of modulus converter A/D with single-chip microcomputer 6 respectively, and the output port of single-chip microcomputer 6 is connected with two-pen recorder 7, light-emitting diode display 8 respectively.
Temperature electromotive force, oxygen electromotive force input block 3,4 are made up of high input impedance operational amplifier, standard of precision voltage respectively, and the output signal of thermocouple 1, zirconia oxygen determination head 2 is connected with the input end of single-chip microcomputer by compensating wire, oxygen electromotive force lead and the modulus converter A/D of surveying rifle respectively fast.
Be provided with standard temperature, oxygen activity electric potential signal in the standard signal verifier, the output plug signal of standard signal verifier can be connected with temperature electromotive force input block 3, oxygen electromotive force input block 4 respectively by the input socket of surveying rifle.
The quick thermocouple of integrative-structure of the present utility model and zirconia oxygen determination head are connected the back with the survey rifle and insert in the molten steel, and this instrument can be caught thermopair and oxygen activity signal automatically fast, measures the temperature and the oxygen activity of molten steel exactly.The utility model by software the thermopair electromotive force is carried out cold junction compensation and temperature is calibrated automatically, oxygen electromotive force to the oxygen determination head carries out linearization and inverse logarithm processing conversion, pass through automatic table look-up method, molten steel oxygen activity value when obtaining liquid steel temperature value and this temperature value, sample multi-group data, by obtaining optimum test data after the smoothing processing.
Characteristics of the present utility model are: 1, can and adopt the zirconia oxygen determination head of different contrast electrodes to be used with the thermopair of multiple calibration number; 2, use the standard signal verifier can check the survey rifle to be connected quickly and easily, improve the test success ratio with analysis the normal of display instrument; 3, have multiple interfaces, as: the binary-coded decimal interface of printing interface, 4～20mA output interface, isolation etc., convenient preservation test record reaches and is connected with miscellaneous equipment.
The utility model is easy to use, to liquid steel temperature, oxygen activity test fast, accurately, can effectively improve the rate of steel products produced to steel ingots, and suitable steel-making is on-the-spot to be used.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: the 1-fast thermocouple, 2-zirconia oxygen determination head, 3-temperature electromotive force input block, 4-oxygen electromotive force input block, 5-analyzes display instrument, 6-single-chip microcomputer, 7-two-pen recorder, 8-LED display.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified: in Fig. 1, described measuring temp of molten steel apparatus for determination of oxygen, it is characterized in that: it is by fast thermocouple 1 and zirconia oxygen determination head 2, survey rifle and analyze display instrument 5, the standard signal verifier is formed, described quick thermocouple 1 and zirconia oxygen determination head are encapsulated in the same gauge head, its output plug signal is connected with the input socket of surveying rifle, and the input socket terminals of surveying rifle also are connected with temperature electromotive force input block 3, the oxygen electromotive force input block 4 of analyzing display instrument 5 with oxygen electromotive force lead by compensating wire respectively; Described analysis display instrument 5 comprises temperature electromotive force input block 3, oxygen electromotive force input block 4, single-chip microcomputer 6, interface output circuit; Temperature electromotive force, oxygen electromotive force input block 3,4 are connected by the input end of modulus converter A/D with single-chip microcomputer 6 respectively, and the output port of single-chip microcomputer 6 is connected with two-pen recorder 7, light-emitting diode display 8 respectively.
Temperature electromotive force, oxygen electromotive force input block 3,4 are made up of high input impedance operational amplifier, standard of precision voltage respectively, and the output signal of thermocouple 1, zirconia oxygen determination head 2 is connected with the input end of single-chip microcomputer by compensating wire, oxygen electromotive force lead and the modulus converter A/D of surveying rifle respectively fast.
Be provided with standard temperature, oxygen activity electric potential signal in the standard signal verifier, the output plug signal of standard signal verifier can be connected with temperature electromotive force input block 3, oxygen electromotive force input block 4 respectively by the input socket of surveying rifle.
Its course of work is at first to use the output plug signal of standard signal verifier to be connected with the analysis display instrument by the input signal socket of surveying rifle, after system to be tested is normal, fast thermocouple and the zirconia oxygen determination head of changing integrative-structure are connected in the back insertion molten steel with the survey rifle, this instrument can be caught thermopair and oxygen activity signal automatically fast, measures the temperature and the oxygen activity of molten steel exactly.The utility model by software the thermopair electromotive force is carried out cold junction compensation and temperature is calibrated automatically, oxygen electromotive force to the oxygen determination head carries out linearization and inverse logarithm processing conversion, pass through automatic table look-up method, molten steel oxygen activity value when obtaining liquid steel temperature value and this temperature value, sample multi-group data, by obtaining optimum test data after the smoothing processing.
Claims (3)
1. measuring temp of molten steel apparatus for determination of oxygen is characterized in that: it by fast thermocouple (1) and zirconia oxygen determination head (2), survey rifle and analyze display instrument (5), the standard signal verifier is formed; Described quick thermocouple (1) and zirconia oxygen determination head are encapsulated in the same gauge head, its output plug signal is connected with the input socket of surveying rifle, and the input socket terminals of surveying rifle also are connected with temperature electromotive force input block (3), the oxygen electromotive force input block (4) of analyzing display instrument (5) with oxygen electromotive force lead by compensating wire respectively; Described analysis display instrument (5) comprises temperature electromotive force input block (3), oxygen electromotive force input block (4), single-chip microcomputer (6), interface output circuit; Temperature electromotive force, oxygen electromotive force input block (3,4) are connected by the input end of modulus converter A/D with single-chip microcomputer (6) respectively, and the output port of single-chip microcomputer (6) is connected with two-pen recorder (7), light-emitting diode display (8) respectively.
2. measuring temp of molten steel apparatus for determination of oxygen according to claim 1, it is characterized in that: temperature electromotive force, oxygen electromotive force input block (3,4) are made up of high input impedance operational amplifier, standard of precision voltage respectively, and the output signal of thermocouple (1), zirconia oxygen determination head (2) is connected with the input end of single-chip microcomputer by compensating wire, oxygen electromotive force lead and the modulus converter A/D of surveying rifle respectively fast.
3. measuring temp of molten steel apparatus for determination of oxygen according to claim 1, it is characterized in that: be provided with standard temperature, oxygen activity electric potential signal in the standard signal verifier, the output plug signal of standard signal verifier can be connected with temperature electromotive force input block (3), oxygen electromotive force input block (4) respectively by the input socket of surveying rifle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820065667XU CN201166593Y (en) | 2008-02-04 | 2008-02-04 | Oxygen-determining instrument for measuring temperature of molten steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820065667XU CN201166593Y (en) | 2008-02-04 | 2008-02-04 | Oxygen-determining instrument for measuring temperature of molten steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201166593Y true CN201166593Y (en) | 2008-12-17 |
Family
ID=40191983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820065667XU Expired - Fee Related CN201166593Y (en) | 2008-02-04 | 2008-02-04 | Oxygen-determining instrument for measuring temperature of molten steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201166593Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121164A (en) * | 2017-06-29 | 2017-09-01 | 湖南镭目科技有限公司 | A kind of carbon content of molten steel and system for detecting temperature |
| CN109060190A (en) * | 2018-08-24 | 2018-12-21 | 北京首钢股份有限公司 | A kind of measuring temp of molten steel determines the calibration method of oxygen system |
-
2008
- 2008-02-04 CN CNU200820065667XU patent/CN201166593Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121164A (en) * | 2017-06-29 | 2017-09-01 | 湖南镭目科技有限公司 | A kind of carbon content of molten steel and system for detecting temperature |
| CN109060190A (en) * | 2018-08-24 | 2018-12-21 | 北京首钢股份有限公司 | A kind of measuring temp of molten steel determines the calibration method of oxygen system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20100204 |