Industrial resistance furnace electric furnace transformer heating control

Industrial resistance furnace electric furnace transformer heating control

In the electric furnace transformer control mode, the electric furnace transformer is used as the front-end power supply of the electric heating element, and is directly connected with the electric heating element to control the heating power of the resistance furnace.

Heating Control of Thyristor Regulator in Industrial Resistance Furnace

The main component of the thyristor regulator is the thyristor, which is a high-power semiconductor component that realizes weak current control. It has many advantages such as small size, long life, high efficiency, no noise, and convenient use. The application of thyristor regulator enables continuous adjustment of the input power, realizing that the temperature of the resistance furnace can be continuously controlled according to the given process curve

Industrial resistance furnace time proportional control

Time proportional control adopts solid state relay (SSR) as the heating execution component. (Solid state relay is a new type of electronic switch with better reliability, higher on-off speed, high temperature control accuracy, and long service life.) The furnace temperature deviates from the set value. Within the set control period, a square wave with an adjustable duty cycle is generated to control the solid-state relay to control the heating power through the turn-on time.

Industrial resistance furnace heating control

The position control has two states, namely the heating power is on and off; or the heating power is changed by intermittent and disconnecting the heating power, so that the temperature of the resistance furnace changes.

Position control usually uses a contactor as a heating execution component, which is a combination of a position temperature control instrument and a contactor to achieve the purpose of temperature control.

Industrial resistance furnace control method

Automatic furnace temperature control---refers to automatically turn on or off the heat source energy supplied to the furnace according to the deviation of the furnace temperature to a given temperature, or continuously change the size of the heat source energy to stabilize the furnace temperature in a given temperature range. Meet the needs of heat treatment process.

The commonly used regulation rules for the automatic control of heat treatment temperature include position control, three position, proportional, proportional integral and proportional integral derivative.

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