When choosing a suitable thermal oil electric heater, the following aspects need to be considered:
1、 Power
The choice of power is crucial as it directly affects the heating effect and operating costs. Firstly, it is necessary to clarify the parameters such as the mass, specific heat, temperature to be raised, and heating time of the heated medium, and then calculate the required power according to the formula. In addition, it is necessary to consider the characteristics of the process flow, such as whether it is continuous heating, whether there is a rest period, and the possible increase in heating demand in the future, and reserve a certain amount of power redundancy appropriately.
2、 Temperature range
Determine the required temperature range based on actual usage needs. Different technological processes have different temperature requirements, and it is important to ensure that the selected thermal oil electric heater can stably and accurately reach and maintain the required working temperature. At the same time, pay attention to the temperature control accuracy of the equipment. Generally speaking, the higher the temperature control accuracy, the better. For example, a temperature control accuracy of ± 1 ℃ can better meet the strict requirements of high process standards.
3、 Work pressure
Understand under what pressure the equipment needs to operate. Thermal oil electric heaters typically achieve higher operating temperatures at lower operating pressures. Different application scenarios may have specific requirements for stress, and the choice should be based on the actual situation.
4、 Heating method
Common heating methods include resistance heating, electromagnetic heating, etc. The resistance heating method has a simple structure and low cost, but the heating efficiency is relatively low; The electromagnetic heating method has the advantages of high heating efficiency, uniform heating, energy saving and environmental protection, but the price may be higher. You can choose based on budget and requirements for heating effect.
5、 Material
Heating element material: High temperature resistant, corrosion-resistant, and anti-oxidation materials should be selected, such as stainless steel, nickel chromium alloy, etc., to ensure the service life and performance of the heating element.
Shell material: Considering the usage environment and safety of the equipment, the shell material should have good insulation and corrosion resistance, such as using high-quality carbon steel or stainless steel materials, and undergoing good insulation treatment to reduce heat loss and prevent burns.
6、 Control system
Advanced control systems can achieve automated operations, precise temperature control, and safety protection functions. For example, systems using PID self-tuning intelligent control technology have high temperature control accuracy and can automatically adjust heating power based on the deviation between actual temperature and set temperature; It should also have functions such as automatic temperature control, over temperature alarm, and automatic fault detection. In the event of a fault, it should be able to quickly cut off the power and issue an alarm signal to ensure the safety of the equipment and operators.
Post time: Feb-11-2025
