What is a quartz heating tube?

A quartz heating tube is a heating element that converts electrical energy into heat. Its core structure consists of a quartz glass tube and an internal heating element (such as a resistance wire or tungsten filament). Its operating principle is to generate heat by passing an electric current through the heating element. The quartz glass tube, serving as the outer shell, has excellent high-temperature resistance, corrosion resistance, and thermal conductivity, enabling efficient heat conduction and radiation. Quartz heating tubes heat objects directly through infrared radiation, eliminating the need for air convection, achieving fast and efficient heating.

Quartz heating tubes are typically made of high-purity quartz glass, which offers extremely high temperature resistance (up to 800°C or higher) and excellent chemical stability, making them suitable for a variety of harsh environments. They offer high heating efficiency, high electrical-to-heat conversion efficiency, and are pollution-free, making them a clean heating device. Furthermore, quartz heating tubes offer advantages such as rapid temperature rise, low thermal inertia, long service life, and easy design and installation.

Quartz heating tubes are widely used in industrial, household appliance, medical, food processing, and chemical industries, such as electric ovens, dryers, medical equipment, and food drying. Its applications are extensive, and market demand continues to grow. It holds broad prospects for development in the field of high-efficiency, energy-saving, and environmentally friendly heating equipment.

Transparent quartz infrared heating tubes are a special type of quartz heating tube. Their outer shell is made of transparent quartz glass, offering higher light transmittance and thermal radiation efficiency. They are suitable for applications requiring high-precision infrared heating, such as precision instruments, optical equipment, and laboratory heating. Quartz infrared heating tubes are a highly efficient heating device widely used in both industrial and domestic applications. They directly heat through infrared radiation, offering advantages such as rapid heating, high thermal efficiency, and a long lifespan.

Are quartz tube heaters safe?
Quartz tube heaters typically use high-purity quartz glass as their outer shell. This glass offers excellent high-temperature resistance (up to 1000°C or higher) and chemical stability, allowing them to withstand high temperatures without softening or deforming. Furthermore, quartz glass offers excellent insulation properties, effectively preventing current leakage and ensuring safe use.

1. Radiation and Health Impacts
Under normal operating conditions, the radiation generated by quartz tube heaters is non-ionizing, with levels far below international safety standards and posing no health risks. However, some sources indicate that certain low-quality quartz tubes may release harmful chemicals, such as formaldehyde and benzene, during the heating process. Long-term inhalation can damage the respiratory tract and lungs. Furthermore, prolonged exposure to quartz tube radiation may affect human cells and increase the risk of cancer.

2. Safety and Operational Specifications
When using quartz tube heaters, please note the following:

Avoid excessive vibration and shaking: Quartz heating elements are brittle materials, requiring careful attention during installation and operation to prevent mechanical damage.

Maintain a proper distance: The distance between the heating element and the heated object should be maintained between 100 and 400 mm to ensure safety and efficiency.

Avoid dry heating: Quartz tubes are not suitable for heating solutions containing hydrofluoric acid or silicate solutions. Long-term use may cause dissolution and perforation of the tube surface.

Regular Maintenance: The equipment should be inspected regularly to ensure electrical performance and safety.

3. Safety Hazards
Although quartz tube heaters are relatively safe under normal use, some potential risks still exist:

Fire Risk: Directly connecting the quartz tube to flammable organic liquids can cause a fire.

Electric Shock Risk: Deteriorating or short-circuiting wires can cause electrical fires.

Mechanical Damage: Quartz tubes are brittle and easily break due to mechanical damage.

4. Usage Recommendations
Choose genuine products: Purchase and use certified genuine products to ensure product quality and safety.

Follow Operating Instructions: Strictly follow the product manual for operation and maintenance to avoid improper use.

Precautions: Maintain a proper distance during use and avoid prolonged exposure to high temperatures.

Quartz tube heaters are relatively safe under normal use and proper operation, but users should be aware of material properties, radiation effects, usage specifications, and potential risks. Proper use and maintenance can minimize risks and ensure safe use.