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China Custom Coil Tube Heater Suppliers - Efficient Heat Exchanger from Trusted Factory
Description
The coil heater is a type of heat exchanger developed based on the introduction and absorption of international heat exchange products from the 1980s. This product is novel, easy to assemble, easy to maintain, and has good performance.
The heating element of this exchanger adopts a suspended floating coil structure. During the heating process, due to the centrifugal force of steam inside the coil, the coil bundle generates high-frequency vibration, which destroys laminar heat transfer and generates high heat transfer capacity.
The heat transfer coefficient K is ≥ 3000W/m2 ℃. At the same time, due to the cantilever free end of the coil, it expands and shrinks freely, generating high-frequency vibration, causing alkaline attachments to automatically leave the pipe wall, forming an automatic descaling characteristic.
Structural Features
The coil heater serves as an advanced boiler feedwater heating device. This heater replaces the bulky high-pressure water chamber and tube plate in the original "tubular" or "U-shaped tubular" heaters with two main pipes, greatly facilitating manufacturing and maintenance work while reducing leakage points.
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Superior Welding: Due to the same material and small difference in wall thickness between the riser and heat exchange tube, welding performance is significantly improved.
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High Elasticity: The spiral tube does not generate temperature difference stress, drastically lowering the possibility of joint cracking.
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Turbulent Flow: High-pressure water inside the tube is always in a turbulent state, eliminating stagnation layers.
Its heat transfer efficiency is significantly higher than other types, with efficiency improved by 10% compared to the "U-shaped tube" high-pressure heater. In addition, high-pressure water in a turbulent state is less prone to scaling on the pipe wall, reducing thermal resistance and cleaning workload, which extends the service life of the equipment and improves economic benefits.
Frequently Asked Questions
What is the heat transfer efficiency of this coil heater?
The coil heater features a high heat transfer coefficient (K ≥ 3000W/m2 ℃) and is approximately 10% more efficient than traditional U-shaped tube high-pressure heaters.
How does the automatic descaling feature work?
The suspended floating coil structure generates high-frequency vibrations during operation. This vibration causes alkaline attachments to automatically detach from the pipe wall.
What makes the structural design better for maintenance?
It replaces bulky water chambers and tube plates with two main pipes, which simplifies the manufacturing process, reduces potential leakage points, and makes maintenance much easier.
Does the heater suffer from temperature difference stress?
No. The spiral tubes possess excellent elasticity and are designed to expand and shrink freely, which prevents the generation of temperature difference stress and reduces joint cracking.
Why is the water inside the tubes always in a turbulent state?
The use of spiral tubes ensures that high-pressure water remains in a constant turbulent state, which prevents the formation of a stagnation layer and reduces scaling on the pipe walls.
What are the primary economic benefits for users?
The combination of higher thermal efficiency, reduced cleaning workload, and extended equipment service life significantly improves the overall economic return for the user.