Strip annealing line temperature control system专利检索-平带电位微电子学专利检索查询-专利查询网

Strip annealing line temperature control system

阅读：101发布：2023-05-17

专利汇可以提供Strip annealing line temperature control system专利检索，专利查询，专利分析的服务。并且A continuous strip annealing line has potentiometers which determine the speed of the line, a pilot motor operating a first rheostat whose setting causes changes in line speed, a second rheostat operated by the pilot motor, and control means between the potentiometers and second rheostat operable when their voltages are unequal to cause rotation of the pilot motor in such direction to bring the voltages into balance. A temperature regulation control system includes a strip temperature sensor, a null detector connected to the output of the temperature sensor, and a magnetic amplifier having its output connected to the null detector and its input connected across the potentiometer and second rheostat. The null detector has two normally open contacts one closing when the strip temperature is too high so as to speed up the line by operating the pilot motor and the other closing when the strip temperature is too low to slow down the line. The contacts open when the two inputs to the null detector are in balance. Switches operable by the operator permit conventional operation or operation of the temperature regulation control and in conjunction with the potentiometers permit change from temperature regulation to conventional operation without changing line speed.，下面是Strip annealing line temperature control system专利的具体信息内容。

权利要求

1. In a continuous strip line including motor driven rolls for conveying the strip, a generator for supplying power to said motors to control the speed of the line, a reversible pilot motor, a first set of contacts for supplying power to said reversible motor to rotate it one direction, a second set of contacts for supplying power to said reversible motor to rotate it in the opposite direction, a first rheostat having an arm connected to be moved by said pilot motor, means operable by the voltage from said first rheostat to vary the output of said generator, a second rheostat having an arm connected to be moved by said pilot motor, a speed selection potentiometer having an arm, a first circuit between said potentiometer arm and the arm of said second rheostat, and control means in said first circuit between said potentiometer arm and the arm of said second rheOstat for selectively closing said first and second sets of contacts when the voltage from said potentiometer arm is different than the voltage from the arm of said second rheostat; the improvement comprising contact breaking means in said first circuit between said control means and the arm of said second rheostat, a null detector having two normally open contacts, temperature sensing means for determining the temperature of said strip, second control means connected to said temperature sensing means and said null detector to close the first of said normally open contacts when the sensed temperature is above a preset temperature and to close the second of said normally open contacts when the sensed temperature is below the preset temperature, an amplifier having an input connected between said potentiometer arm and the arm of said second rheostat and an output connected to said null detector, a third set of contacts connected in parallel with said first set of contacts, means operative to close said third set of contacts when said first normally open contact is closed, a fourth set of contacts connected in parallel with said second set of contacts, means operative to close said fourth set of contacts when said second normally open contact is closed, a second circuit including said first normally open contact, and said first operative means connected in series, a third circuit including said second normally open contact and said second operative means connected in series, and means for breaking said second and third circuits.

2. The combination of claim 1 in which said second control means includes a temperature recorder connected to the output of said temperature sensing means and having said temperaure set point, a temperature controller having its input connected to the output of said recorder, and a motor operated rheostat having its motor connected to the output of said controller and its arm connected to said null detector.

3. The combination of claim 1 in which said amplifier is a magnetic amplifier having a control winding connected between said potentiometer arm and the arm of said second rheostat.

4. The combination of claim 1 including a voltmeter connected across said amplifier control winding.

5. The combination of claim 3 in which said second control means includes a temperature recorder connected to the output of said temperature sensing means and having said temperature set point, a temperature controller having its input connected to the output of said recorder, and a motor operated rheostat having its motor connected to the output of said controller and its arm connected to said null detector.

6. The combination of claim 5 including a voltmeter connected across said amplifier control winding.

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Strip annealing line temperature control system

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