Introduction to Electric Heating Tubes for Air Separation Equipment

Introduction to Electric Heating Tubes for Air Separation Equipment

1、 Detailed Introduction to Common Electric Heating Tube Products

1. Electric heating tube structure:

Electric heating tube, scientific name metal tubular heating element. This type of electric heating tube is the most commonly used, with stainless steel as the sheath, magnesium oxide rod as the inner core, magnesium oxide powder filling material, and nickel chromium wire as the heating wire. It can be roughly divided into single head electric heating tubes and double head electric heating tubes.

2. Classification and application scope:

The types of electric heating pipes include single head electric heating pipes, double head electric heating pipes, stainless steel electric heating pipes, dry burning electric heating pipes, heat sink electric heating pipes, boiling water electric heating pipes, mold electric heating pipes, high-temperature color changing hoses, hot runner electric heating coils, electroplating equipment heating pipes, Teflon heaters, titanium heating rods, far infrared heating pipes, ceramic electric heating pipes, heating coils, plastic mechanical electric heating coils, and other types.

2、 Overview of Electric Heating Tubes for Air Separation Equipment

Air separation equipment is a device that uses air as the raw material, converts it into a liquid state through compression, deep freezing, and then undergoes distillation to gradually separate and produce inert gases such as oxygen, nitrogen, and argon from the liquid air. The electric heating tube used in air separation equipment is a specially designed and manufactured electric heating element for the air separation industry, with unique manufacturing process, high temperature and pressure resistance, and long service life.

3、 UL standard for electric heating tubes

UL is the abbreviation for Underwriter Laboratories Inc. in English. UL Safety Testing Institute is the most authoritative and largest private institution in the United States engaged in safety testing and appraisal. It adopts scientific testing methods to study and determine whether various materials, devices, products, equipment, buildings, etc. pose a threat to life and property, and the degree of harm; Determine, write, and distribute corresponding standards and materials that help reduce and prevent losses to life and property, while conducting factual research services.

4、 Common faults and specific handling methods of electric heating pipes used in air separation equipment during use

A. Leakage (the phenomenon is that the automatic circuit breaker or leakage protection switch trips, and the electric heating tube cannot be heated) accounts for more than 90% of heater failures.

A. For leakage, it is necessary to confirm the leakage point. If it is the electric heating tube itself, it can be baked in an oven. If the insulation resistance value cannot be increased, the electric heating tube may need to be replaced. For example, if water enters the junction box, use a hot air gun to dry it, or if the wire is broken, wrap it with tape or replace the wire.

B. No heating (internal heating wire burnt or wire broken at the junction box)

B. If the heater does not heat, the internal wire of the electric heating tube cannot be repaired and can only be replaced; If the circuit or connector is open or loose, it can be reconnected.

C. Cracking or fracture of electric heating pipes (cracks in electric heating pipes, corrosion and fracture of electric heating pipes, etc.)

C. If the electric heating tube is broken or broken, it can only be replaced.

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