News

Dongli Electric

Do you know how to measure the temperature of the boiler intelligent energy saving control system?


Release time:

2020-08-07

The temperature of the boiler intelligent energy-saving control system is generally automatically controlled by the furnace temperature, which is to meet the needs of the heat treatment process and stabilize the furnace temperature in a given temperature range. According to the deviation of the furnace temperature to the given temperature, the heat source energy supplied to the furnace is automatically turned on or off, or the size of the heat source energy is continuously changed. Do you know how to measure the temperature of the electric boiler:

Boiler intelligent energy-saving control systemThe temperature is generally automatic control of the furnace temperature, in order to meet the needs of the heat treatment process, so that a given temperature range of the furnace temperature stability, according to the deviation of the furnace temperature to a given temperature, automatically turn on or off the supply of the furnace heat source energy, or continuous change the size of the furnace temperature heat source energy stability, then you know how to measure the temperature of the electric boiler:

Boiler intelligent energy-saving control systemThe temperature of the heater is measured by PID control according to the temperature. PID is used to adjust the combustion regulating valve. By adjusting the opening of the valve, the effect of regulating the combustion or controlling the temperature is achieved. The heating furnace of the electric heating furnace operates by electric heating. The heat generated by the heater is proportional to the square of the voltage control unit of the regulator. The height of the control unit is controlled by the position of the sliding contact of the regulator. The contact is driven by a reversible DC motor, when the control unit increases the furnace temperature, it will naturally rise. The actual temperature of the furnace is measured by a thermocouple to measure the output voltage, which is compared with the given voltage as the feedback voltage of the system to obtain the deviation voltage, which is amplified by the voltage amplifier and the power amplifier to control the armature voltage of the motor.

Under normal circumstances,Boiler intelligent energy-saving control systemIt is equal to a certain expected value T °C, and the output voltage of the thermocouple is exactly equal to the given voltage. At this time, the reversible motor does not rotate, and the sliding contact of the voltage regulator stays and remains at a suitable position, so that the control unit maintains a certain value. At this time, the heat dissipated by the furnace is exactly equal to the heat absorbed by the heater, forming a stable thermal equilibrium state and maintaining a constant temperature, when the temperature of the furnace T °C suddenly drops for some reason, the following control process will occur: for example, the heat loss caused by the opening of the furnace door, the result of which is to increase the furnace temperature to make the furnace temperature rise again until the actual value of T °C is equal to the desired value.