1.Electric Heating Principle

Resistance Heating: When an electric current passes through the resistance wire, heat is generated according to Joule's law. ?Then, the heat is transferred to the pipeline in a conduction manner through the insulating and heat-conducting material, thus increasing the temperature of the fluid inside the pipeline.

Electromagnetic Induction Heating: An alternating current is passed through the coil to generate an alternating magnetic field. ?This makes the pipeline generate an induced electromotive force. ?Heat is generated by utilizing the resistance of the pipeline itself. ?The heating power can be controlled precisely by changing parameters such as the number of turns of the coil and the magnitude of the current.

2.Steam Heating Principle

Steam flows inside the pipeline heater. ?The heat is transferred from the steam side to the fluid inside the pipeline through the pipeline wall in a conduction manner. ?After releasing heat, the steam condenses into water. ?A steam trap device is required to discharge the condensed water in a timely manner to prevent any impact on heating and the occurrence of water hammer.

3.Heat Transfer Oil Heating Principle

The heat transfer oil is heated in the heating furnace and then sent to the pipeline heater by a circulating pump. ?It exchanges heat with the fluid inside the pipeline. ?Due to its high specific heat capacity and good thermal stability, the heating power can be precisely controlled by adjusting the flow rate and temperature of the heat transfer oil.

4.Hot Air Heating Principle

The fan sends air into the heating device to form hot air. ?The hot air is then sent to the surroundings or inside of the pipeline to be heated through pipelines. ?The heat is transferred to the pipeline and the fluid inside it in a convection and radiation manner. ?It has the characteristics of fast heating and uniform temperature.

Parameters:

Advantage：

1.Heating Efficiency

Fast heating: Electric - type heaters can heat pipeline fluids rapidly. Electromagnetic - induction ones work in minutes, much faster than traditional ones.

High efficiency: In heat - transfer - oil pipeline heaters, heat transfer is good, with low losses and over 90% efficiency, saving energy.

2.Temperature Control

Accurate: Heaters with advanced sensors and smart systems can control temperature within ±1℃ or better, keeping fluids stable for high - precision processes.

Even: All heating methods can evenly heat pipeline fluids through proper design, ensuring product quality.

3.Safety

Many safeguards: Equipped with over - temperature, over - pressure, and leakage protections, they cut power automatically in case of problems.

Safe by nature: Explosion - proof electric heaters prevent sparks in dangerous areas, ensuring safety.

Applications:

1.Petroleum and Chemical Industry: During the transportation of crude oil and chemical products, as well as in the production of polymers, they prevent materials from solidifying and crystallizing, ensuring their fluidity to meet the requirements of reactions and transportation.

2.Power Industry: Applied to steam pipelines, desulfurization and denitrification systems, and air cooling systems to maintain the temperature and ensure the power generation efficiency and stable operation of the systems.

3.Food and Beverage Industry: In the processes of material transportation, beer brewing, and edible oil production, they keep the materials at an appropriate temperature, facilitating subsequent processes.

4.Pharmaceutical Industry: Heat the pipelines for liquid medicine and raw material drugs transportation, ensuring the stability of the liquid medicine, its efficacy, and the production quality of raw material drugs.

5.HVAC (Heating, Ventilation, and Air Conditioning) Industry: Provide trace heating for the centralized hot water supply system and heat the air or refrigerant in the air conditioning system to meet the heating and temperature regulation requirements.

6.Marine Industry: Heat the pipelines of fuel oil and lubricating oil to reduce their viscosity and ensure the normal operation of engines and equipment.

7.Paper Industry: Heat the pipelines of pulp and coating liquid to prevent precipitation and caking, ensuring the continuity of production and the coating quality.