SU810836A1 - Device for control of oxygen potential - Google Patents
Device for control of oxygen potential Download PDFInfo
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- SU810836A1 SU810836A1 SU782657627A SU2657627A SU810836A1 SU 810836 A1 SU810836 A1 SU 810836A1 SU 782657627 A SU782657627 A SU 782657627A SU 2657627 A SU2657627 A SU 2657627A SU 810836 A1 SU810836 A1 SU 810836A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- sensor
- thermocouple
- oxygen potential
- oxygen
- regulator
- Prior art date
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
(54) УСТРОЙСТВО ДЛЯ РЕГУЛИРОВАНИЯ КИСЛОРОДНОГО ПОТЕНЦИАЛА(54) DEVICE FOR REGULATING OXYGEN POTENTIAL
«ию кислородного потенциала, и выдает угаравл ющнй снгнал 6у, знак и величина которого определ етс знаком и величиной разности сигналов и.„ и t/з- Сигнал Uy, ностунает в исполнительный механизм 10, который открывает или закрывает вентиль // и, таким образом, измен ет расход до бавки воздействующего на кислородный потенциал атмосферы компонента (например , метана), в зависимости от параметров сигнала Uy."The oxygen potential, and produces a quench 6n, the sign and magnitude of which is determined by the sign and magnitude of the difference between the signals and." And t / h. The signal Uy, nostat in the actuator 10, which opens or closes the valve // and, thus, it changes the flow rate of the component affecting the oxygen potential of the atmosphere (for example, methane), depending on the parameters of the signal Uy.
Блок делени работает следующим образом .The division unit works as follows.
На вход логарифматора 12 поступает сигнал /7д, пропорциональный произведению функций содержани кислорода в печной атмосфере и ее температуры, т. е.The signal 7d arrives at the input of the logarithm 12 proportional to the product of the functions of the oxygen content in the furnace atmosphere and its temperature, i.e.
.д /Ы -/(Г),.d / s - / (r)
где (Уд - выходной сигнал датчика. В; фо - кислородный потенциал иечнойwhere (UD - sensor output signal. B; fo - oxygen potential of the fluid
атмосферы, % О2; Т - температура печной атмосферы,atmosphere,% O2; T is the temperature of the furnace atmosphere
°К.° K
На ВХОД лога|р,ифматора 13 поступает сигнал С/т, иропорциоиальный функции температуры печной атмосферы, т. е. т: 1(Т)- Нроизвед операции логарифмировани логарифматор 12 выдает сигналThe LOG IN | p, the ifmator 13 receives a C / t signal, the proportional function of the furnace atmosphere temperature, i.e. t: 1 (T) - Log output of the logarithm operation 12
(фо) + 1§1/(П. а логарифматор 13 выдает сигнал IgLj -Igl/C ). Сумматор 14, произвед сум-35 мированне сигналов lgf/д и Igt/, выдает сигнал ,, lg /(фо), который, пройд преобразовани в антилогари-фматоре 15, (pho) + 1§1 / (P. And the logarithm 13 produces a signal IgLj-Igl / C). The adder 14, produced by sum-35 mirovne signals lgf / d and igt /, produces a signal lg / (pho), which, having passed the conversion to the anti-logar-fmator 15,
в виде сигнала , пропорционального функции концентрации кислорода в печной атмосфере, поступает в схему устройства. Предложенное устройство по сравнению с известными устройствами позвол ет повысить точность измерени кислородного потенциала печ1ных атмосфер на 20% за счет Введени в схему термопары и блока делени , с помощью которых осуществл етс температурна коррекци ; повысить качество химико-термической обработки за счет получени точных заданных концентраций углерода, а следовательно, и толщины упрочненного сло в поверхности деталей.in the form of a signal proportional to the function of oxygen concentration in the furnace atmosphere, enters the device circuit. The proposed device, in comparison with the known devices, makes it possible to increase the accuracy of measuring the oxygen potential of furnace atmospheres by 20% due to the introduction of a thermocouple and a dividing unit into the circuit, by means of which temperature correction is carried out; to improve the quality of chemical heat treatment by obtaining exact specified concentrations of carbon, and, consequently, the thickness of the hardened layer in the surface of the parts.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782657627A SU810836A1 (en) | 1978-08-17 | 1978-08-17 | Device for control of oxygen potential |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782657627A SU810836A1 (en) | 1978-08-17 | 1978-08-17 | Device for control of oxygen potential |
Publications (1)
Publication Number | Publication Date |
---|---|
SU810836A1 true SU810836A1 (en) | 1981-03-07 |
Family
ID=20782531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782657627A SU810836A1 (en) | 1978-08-17 | 1978-08-17 | Device for control of oxygen potential |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU810836A1 (en) |
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1978
- 1978-08-17 SU SU782657627A patent/SU810836A1/en active
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