The boiler that utilizes thermal oil for heating is called thermal oil boiler. Generally coal, oil, gas as a fuel, thermal oil as a medium, the use of circulating pumps for forced circulation, the heat will be transported to the heat equipment, and then return to the heating furnace to reheat, at low pressure to obtain a high working temperature, and the system has a high thermal efficiency, easy to operate and maintain.

Heat transfer oil boilers can be divided into three categories according to the heat source: coal-fired boilers, oil (gas) boilers, electric heating boilers.

First, coal-fired boilers

Coal-fired boilers are fueled by coal, heat transfer oil as a heat carrier. Generally divided into vertical hand-burning, horizontal cylinder type, horizontal machine burning three coal-fired structural forms.

Second, the oil (gas) boiler

It is fuel oil or gas as fuel, using burner calcination, heat transfer oil as heat carrier. Generally divided into vertical, horizontal two structural forms.

Third, the electric heating boiler

For electric heating oil furnace, heat is generated and transmitted by the electric heating element immersed in thermal oil, thermal oil as a medium, the use of circulating pumps, forced thermal oil for liquid-phase circulation, the heat will be transferred to the use of one or more kinds of heat equipment, after the use of heat equipment, re-pass the circulating pumps, back to the heater, and then absorbed heat, transferred to the use of heat equipment, and so on and so forth, to achieve the continuous transfer of heat, so that the heated The temperature of the object to be heated rises, to achieve the heating process requirements.