Common types of tubular electric heating elements?
Electric Heating Exchange;
Everyone knows that electric heaters have become common household appliances, but does everyone know the common types of tubular electric heating elements? Today, Electric Heating Exchange will introduce them to you!
Fin electric heating tube;
A fin electric heating tube is a device that converts electrical energy into thermal energy to heat the material to be heated. During operation, the low-temperature fluid medium enters the input port through the pipeline under pressure, flows along the specific heat exchange channel inside the electric heating container, and follows the path designed based on fluid thermodynamics principles, taking away the high-temperature thermal energy generated by the electric heating element during operation, thereby raising the temperature of the heated medium. The outlet of the fin electric heating tube obtains the high-temperature medium required by the process. The finned tubular electric heating element is formed by winding metal heat sinks on the surface of ordinary elements. Compared with ordinary elements, the heat dissipation area is expanded by 2 to 3 times, that is, the surface power load allowed by the fin element is 3 to 4 times that of ordinary elements. Due to the shortened length of the element, its own heat loss is reduced. Under the same power conditions, it has the advantages of fast heating, high thermal efficiency, long service life, small heating device volume, and low cost. It can be installed in blow pipes or other heating occasions for stationary or flowing air.
Flange electric heating tube;
Flange electric heating tube (also known as plug-in electric heater): It uses U-shaped tubular electric heating elements, assembled on the flange cover according to the design specifications for different heating media and power configuration requirements, and inserted into the material to be heated. The large amount of heat generated by the heating element during operation is conducted to the heated medium, raising its temperature to meet the required process requirements. When the medium temperature reaches the set value required by the process, the control system adjusts the output power of the electric heater through PID calculation based on the temperature sensor signal, achieving temperature control of the resistive load of the heating element. This makes the medium temperature uniform and meets the requirements; when the heating element overheats or the liquid level is low, the interlocking protection device of the heating element immediately cuts off the heating power supply to avoid burning out the heating element and extend its service life. Flange electric heating tubes are mainly used for heat preservation and heating of materials in various storage tanks, containers, and oil tanks in industries such as petroleum, chemical, food, and machinery. The connection method can be flange type or threaded end face sealing.
Titanium electric heating tube;
Titanium electric heating tube uses a titanium tube as the shell, with electric heating alloy wires uniformly distributed along the central axis inside the tube, and the gaps filled with compacted magnesium oxide sand having good insulation and thermal conductivity. The tube ends are sealed with silicone or ceramic. This metal electric heating element is specially used for highly corrosive liquids. Titanium electric heating tubes have the characteristics of simple structure, high mechanical strength, high thermal efficiency, safety and reliability, easy installation, and long service life. They are widely applicable to various highly corrosive liquids. Titanium material has a small specific gravity and is widely used for heating water, nitrate solutions, acid solutions, and alkali solutions. Practice has proven that titanium has high efficiency and long life in the production and application of anti-corrosion equipment, and in electroplating equipment applications, it does not affect the plating solution and can greatly improve the efficiency of the electroplating industry. The effective length of the heating element must be fully immersed in the liquid during use.
Teflon;
Teflon electric heating tube is a new type of strong corrosion-resistant electric heating tube used for heating various corrosive liquids. It has excellent aging resistance and good flexibility, and adopts low surface load design. The joint adopts a fully sealed acid and alkali resistant design, and the non-heating section and over-temperature safety protection system are customized according to customer requirements. It fully ensures that the heater is not easy to burn out, has a long service life, is fully sealed, non-corrosive, leak-free, with ground protection, and is safe and reliable. The applicable temperature is below 110°C. Anti-corrosion Teflon electric heating tubes have the advantages of high thermal efficiency, energy saving, and high cost performance. They can be designed in various structural forms, such as spiral, L-shaped, U-shaped, W-shaped, mosquito coil type, combined type, etc. They have been recognized by many listed companies and serve as their long-term supplier of mosquito coil type Teflon electric heaters. We can undertake non-standard products. In terms of voltage, power, specification size, product shape, and wiring method, engineers can design according to customer requirements. Welcome to send drawings and samples for custom production.
Quartz electric heating tube;
Quartz heating tubes, the most common are carbon fiber quartz heating tubes. Carbon fiber heating tubes, also known as carbon fiber electric heating tubes, infrared heating tubes, infrared electric heating tubes, carbon fiber infrared electric heating tubes, carbon fiber infrared heating tubes, etc. It places a carbon fiber filament inside a quartz tube, evacuates and seals the tube, and applies voltage to the carbon fiber filament to generate heat. Our company's products use imported carbon fiber heating elements, with advantages such as large power margin, high temperature resistance, strong heating capacity, long service life, and adjustable power.
Radiant electric heating tube;
A radiant heating tube encloses the electric heating element in a protective sleeve and energizes it to generate heat. The sleeve indirectly radiates heat to the furnace lining and the workpiece being treated. It is widely used in various heating furnaces in the heat treatment industry. The electric heating alloy material used in radiant heating tubes should have high resistivity and high electrothermal conversion efficiency. Since the radiant tube is placed inside the sleeve, the heat transfer process is different from that of ordinary exposed heating elements. Its thermal shielding is large, and the element temperature must be controlled during the heating process to prevent overheating. When the radiant tube is heated in a closed manner, the surface temperature of the electric heating element is about 100°C-150°C higher than the furnace temperature. Therefore, when selecting materials, it is necessary to analyze the furnace temperature and the atmosphere inside the furnace to choose the correct heating material.
