A Guide to Helical Thermal Oil Coil
2024-12-26Leave a message
Thermal oil heating furnaces are extremely efficient and energy-saving heating equipment that operate at low pressure and high temperatures. Various industries, such as petrochemicals, electronics, textile printing and dyeing, and food, widely utilize this equipment. Thermal oil heating furnaces use heat transfer fluid as the heating medium and other combustible materials such as coal, combustible gas, oil, and so on as fuel. It employs a circulating oil pump to drive liquid-phase circulation, transferring heat energy to heat-using equipment. The coil is the furnaces primary heat transfer element. The design and performance of the coil have a direct impact on the heating furnaces efficiency and safety.
What is a helical thermal oil coil?
The helical thermal oil coil is a heat exchange element used in thermal oil furnaces. It is the primary and only pressure-bearing component of the thermal oil furnace heating system. Using thermal oil as the heat transfer medium, it performs the critical task of heat exchange in a closed system to complete the heating of materials.
Helical pipe coils are generally composed of tightly arranged spiral round pipes. The coils spring-like shape improves heat exchange efficiency by increasing its surface area. At the same time, it produces an eddy current effect while the heat medium moves, enhancing heat transmission. The coil is formed by bending and welding seamless stainless or carbon steel tubing. The specific material is determined by the coils working temperature and medium characteristics.
Working principle: Heat transfer oil is typically circulated within the coil as a medium. The outer wall of the tube absorbs the heat created by the combustion of the fuel, while the inner wall transfers the heat to the heat transfer oil in the tube, heating it.
Design Structure of Helical Coils
✔ Inner coil
✔ Outer coil
✔ Spiral coil
Helical Thermal Oil Coil
Reference specifications of Helical pipe Coils
⚑ Pipe size:
-OD: 60.3mm, 88.9mm, 101.6mm, 114.3mm, 127mm, 133mm, 141.3mm, 152mm, 168.3mm, 219.1mm, 273.1mm
-WT:
⚑ Bending diameter
⚑ Pipe spacing/pitch
⚑ Center to center height
⚑ End to end height
⚑ Number of turns
⚑ Nos of pipe per each coil:
-single pipe
-double pipes
-triple pipes
-quadruple pipes
How to make helical coils?
Raw materials: Helical coils use seamless steel pipes made of high-quality materials as raw materials
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End treatment: Use a notching machine to cut a 30° welding groove on the pipe end and then clean it
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Welding: Weld the treated pipes end to end
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Bending: According to the required size, send the straight pipe to the coil machine to roll it into a spiral coil
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Quality inspection: dimensions inspection + weld joint inspection + pipe alignment inspection
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Fixed coil: The coil will expand and contract during use, so steel plates will be welded between the coils to ensure that the coil does not deform and extend its service life
How to measure helical thermal oil coils?
Applications of Helical Pipe Coils
☛ Petroleum refining
☛ Chemical production
☛ Food processing
☛ Plastic smelting
☛ Steel casting
☛ Metal heat treatment processing
☛ Textile