How to achieve constant temperature control in electric heating thermal oil furnace

How to achieve constant temperature control in an electric heating thermal oil furnace?

The electric heating thermal oil furnace uses circulating thermal oil as the thermal circulation medium and electric energy as the heating source, which can achieve automatic temperature control of the heating object. By using a high-temperature circulating oil pump to forcibly circulate heat energy, it is transported to the heating equipment and then returned to the DC heating equipment to achieve continuous increase in heat, increase the temperature of the heating object, and meet the process requirements of constant temperature heating.

Many customers have doubts about the working mode of electric heating thermal oil furnaces after purchasing them. How to ensure the temperature of the electric heating thermal oil furnace to meet the customer's usage process?

Manufacturer of electric heating thermal oil furnace

The electric heating thermal oil furnace is controlled by instruments or programmable controllers, and the internal PID operation realizes constant temperature control of the equipment. Firstly, the customer needs the target temperature of the heat transfer oil for the equipment. When the system temperature is far below the set temperature of the customer's heat transfer oil, the system PID executes the operation, outputs full power, controls the output of the heating actuator, and heats the system at full power. When the system temperature approaches the set temperature of the customer's heat transfer oil, the system PID executes the operation, indirectly outputs power, controls the intermittent operation of the heating actuator, and accurately controls the temperature.

When the system temperature exceeds the set temperature of the customer's thermal oil, the system cooling PID executes the operation, the cooling actuator outputs, and the system is cooled at full power or intermittently to ensure a constant temperature near the set temperature. When the system heats and cools the PID, both will not output simultaneously. The electric heating thermal oil furnace adopts series control. The customer sets the temperature according to the actual material temperature, and the system PID outputs a change value based on the real-time set temperature. The secondary PID changes the set value in real time according to the PID, and compares the set value with the outlet temperature for heating and cooling actions. Complete temperature control.