Single U-Shaped Electric Heating Tube For Various Water Tanks

Single U-shaped Heating Tube

A single U-shaped heating tube is an electric heating element that converts electrical energy into heat. It is constructed by placing a heat-resistant heating alloy wire (such as nickel-chromium alloy) within a metal tube (such as stainless steel), filling the interstices with crystalline magnesium oxide powder, and then shrinking the tube into a U-shape or other desired shape. This type of heating tube features a simple structure, ease of use, safety, reliability, low cost, and pollution-free operation. It is widely used in various applications for heating liquids (such as water, oil, and acid-base solutions) and solids (such as molds and ovens).

Structural Components
Metal Tube Shell
1. A protective outer shell, typically made of stainless steel, carbon steel, copper, or titanium.
Heating Alloy Wire
2. A heating element, typically spirally distributed along the central axis of the tube, made of a nickel-chromium alloy or other material.
Magnesium Oxide Powder
3. Fills the gap between the metal tube and the heating wire, providing insulation and heat conduction.
Leader Rod
4. Connects the ends of the heating wire to the power source.
End seals
5. Use materials such as silicone or ceramic for sealing to ensure the insulation and safety of the heating element.

Operating Principle
When current passes through the heating wire, it generates a significant amount of heat.
This heat is transferred to the metal tube shell through the tightly packed magnesium oxide powder.
The metal tube shell then transfers the heat to the heated medium (liquid, air, or solid).

Main Features and Advantages:
Simple Structure and Easy Use
1. Easy installation and can be processed into various shapes according to actual needs.

High Efficiency
2. Efficiently converts electrical energy into heat, resulting in high heating efficiency.

High Reliability and Long Life
3. High-quality materials and rigorous craftsmanship ensure the safety and reliability of the heating element.

Pollution-Free
4. As a purely electric heating element, it produces no pollutants during use.

Applications
Liquid Heating
1. Suitable for various water tanks, oil tanks, acid and alkali tanks, etc.

Gas Heating
Used in air heating furnaces, drying furnaces, etc.

Solid Heating
1. Suitable for ovens, hot stamping molds, fusible metal melting furnaces, etc.
Other devices
2. Also commonly found in appliances such as dishwashers and washing machines.