1. Types of electric heating tubes

Electric heating tube, a kind of sealed heating element made of carbon steel tube, stainless steel tube, copper tube and other seamless metal tube filled with electric heating wire and magnesium oxide powder after shrinking tube, plays the role of converting electric energy into heat energy. It has applications in many fields. With the development of the times, the demand for heating pipes in all walks of life is becoming more and more diverse, not only heating liquids, but also heating acid-base salts and low-melting metals.

Second, the use of electric heating tube

From the point of view of usage, heating tubes can be divided into air heating tubes and liquid heating tubes

Air heating pipe

First, the air heating tube is an electric heating device that mainly heats the gas flow. Stainless steel is used as the electric heating element. The inner cavity of the heating tube is equipped with multiple baffles (baffles) to guide the gas flow and extend the gas on the surface of the heating tube. The residence time of the gas is fully heated, so that the gas is heated uniformly, and the heat exchange efficiency is improved. It has the characteristics of good mechanical properties, fast heating and cooling speeds. At the same time, the air heating tube has a tubular air dry burning electric heating tube and a finned air dry burning electric heating tube in shape. Among them, the tubular air dry-fired electric heating tube is used in air dry-burning environments such as ovens and drying rooms, while the fin-type air dry-fired electric heating tube uses a heating radiator on the surface, which increases the heat dissipation area by 2 to 3 times compared with ordinary components. , So it is widely used in machinery manufacturing, automobiles, textiles, food, home appliances and other industries, especially in the air conditioner industry.

Liquid heating tube

The liquid heating tube is a heating tube used for water heating, oil heating and other liquid heating. It is mainly made of metal tubular electric heating elements and has the advantages of high mechanical strength, heat resistance, corrosion resistance, and non-scaling. Liquid heating pipes include threaded single-head heating pipes, threaded threaded heating pipes, flange heating pipes, U-shaped heating pipes and other heating pipes. Among them, threaded single-head heating pipes are mostly used for small fuel tanks, automobile fuel tanks, oil extraction machines and other small volumes. Threaded heating pipes are mostly used for small water tanks, boilers and other containers with power less than 15KW, while flange heating pipes are mostly used for larger equipment such as large boilers, hot water tanks, and heat conduction oil circuits. Heating pipes are mostly used for the heating needs of fryer, disinfection cabinet, steaming cabinet, etc.