SU129108A1 - Device for monitoring the distance of technological modes - Google Patents

Description

To control the distance of technological modes, for example, thermal furnaces, devices are used that contain a sensor, a signal point, searchers, an isolated relay, switches, signal lamps and electromagnets.

The proposed device is more perfect in comparison with the known ones, since it facilitates programmed temperature control. This is achieved as a result of the fact that at its signal point time counters are applied, the duration of the technological period and cycle included in the synchronous clock circuit.

The drawing shows a diagram of the proposed device.

The device consists of two nodes: a technological mode sensor installed near the furnace, and a signal point paired with it. The sensor contains a thermal mode switch P set manually to a position corresponding to the number of periods of a given technological cycle, and a switch P time set to a position corresponding to the length of time of the first period. The switch P is made in the form of an arrow of the electric clock ECH. Both switches are included in the automatic circuit with the I. finder. At the signal point, the PI-P relay is installed, the time counters are MF, electromagnets 3Aii-EL, and signal lamps.

The device is activated by pressing a button on the sensor, from which signals to the signal point begin to flow automatically, acting through the polarized relays installed in it, to the signal lamps and time counters.

During a simple oven, the sensor finder I sensor is in the zero position. The polarized relay РЗ receives power supply and operates, and the ПП # 129108-2 le PI and Pr, connected in parallel to the relay РЗ, due to a large voltage drop in the resistance RI do not work.

Through the contact relay relays, the relay of the relay receives power supply to the signal relay P, which turns on the lamp L simply and also maintains in the open state the soaring circuit of the time counters of the period C4i and the cycle time C4z ..,,

After the end, simply switch Thermal modes sensor switch Я is set by the worker to the position number corresponding to (Number of periods of this technological cycle, according to the processing flow chart. Switch устанавливает is set to the figure corresponding to the duration (in hours) of the first period and the signal is sent to the dispatch panel button pressing. At the moment of pressing the button, the resistance RI is bypassed and the relay relays on the signal point are triggered; Heat-and p (Ya skatel

In this case, time counters of the period and cycle time of the MF receive clock pulses from synchronous clocks and record the current time. One hour before the end of the first period, the ECh brush of electric watches stops at the position at which the warning light of the end of the period at the sensor and at the signal point turns on.

After changing the operating mode of the furnace to the worker in accordance with the technological period, the button is pressed again and the switch Pu is set to the time of the second period. In this case, the period number counter fixes the second period, the reset time electromagnet 9Mi is triggered, and the electric clock brush is set to the second position. In the future, prior to the beginning of the last cycle period, the operation of the circuit occurs as described.

Pressing a button during the transition to the last period of the cycle creates an additional lamp circuit L "End of cycle.

After the time of the last cycle, the brush of the electric clock ECH goes to the zero position, creating a relay relay. The latter is triggered, blocked and causes the Seeker measles to trigger And Until the brush reaches the zero position. At the same time, the relay P operates, which resets the readings of the SU, MF, MF electromagnet 9Mi, EM, EM to zero.

When the finder sweeper brush stops at the zero position, the relays P3 and P4 are triggered, the power supply circuit of the C4i counters, C4 of the cycle time and the cycle time is interrupted, the warning lamp is turned on simply L, bypass and Pj is released. The circuit returns to its original position.

Prevention and Consideration

A device for controlling the distance of technological modes, for example, thermal, containing a sensor, signal point, searchers, polarized relays, switches, signal lamps and electromagnets, characterized in that, in order to facilitate program control of temperature modes, in its signal point applied time counters of the duration of the technological period and cycle included in the synchronous clock circuit.