1.Finned tubular heaters
Finned tubular heaters are a kind of heaters that consume electrical energy to convert into heat energy to heat the materials to be heated. In the work of low-temperature fluid medium through the pipe under pressure into its input port, along the specific heat transfer flow channel inside the electric heating vessel, using the path designed by the principle of fluid thermodynamics, take away the high-temperature heat energy generated by the work of the electric heating element, so that the temperature of the heated medium rises, fin electric heaters export to get the high-temperature medium required by the process. The finned tubular electric heating element, is wound metal heat sink on the surface of ordinary components, compared with ordinary components to expand the heat dissipation area by 2 to 3 times, that is, the surface power load allowed by the finned components is 3 to 4 times that of ordinary components. As the length of the element is shortened, the heat loss itself is reduced, and under the same power conditions, it has the advantages of fast temperature rise, high thermal efficiency, long service life, small size of heating device and low cost. It can be installed in the blowing duct or other static, flowing air heating occasions.
2. Flange immersion heaters
Flange immersion heater (also known as inserted electric heater): is the use of U-shaped tubular electric heating element, according to the design specifications for heating different media, according to the power configuration requirements assembled in the flange cover, inserted into the material to be heated, the heating element works when a large amount of heat is emitted to the heated medium to conduct the temperature of the medium to rise, to achieve the required process requirements. When the medium temperature reaches the set value of the process requirements, the control system adjusts the output power of the electric heater according to the temperature sensor signal after PID operation to realize temperature control of the resistive load of the heating element. Make the medium temperature uniform, to achieve the required requirements; when the heating element over temperature or low liquid level, the heating element interlock protection device immediately cut off the heating power to avoid heating element burnout, prolong the service life. Flange electric heating tube is mainly for petroleum, chemical, food, machinery and other industries of various types of storage tanks, containers, oil tanks in material insulation and heating. The connection can be flange type or threaded end seal.
3. Titanium immersion heater
Titanium electric heating tube is a titanium tube as a shell, along the center of the tube axially evenly distributed electric heating alloy wire its gap filling compaction with good insulation and thermal conductivity of magnesium oxide sand, the two ends of the mouth with silicone or ceramic seal, this metal electric heating element dedicated to high corrosion liquid. Titanium electric heating tube has a simple structure, high mechanical strength, high thermal efficiency, safety and reliability, easy installation, long service life, etc.. Widely used in a variety of highly corrosive liquids. Titanium has a small specific gravity, widely used in heating water, nitrate solution, acid solution, alkali solution, practice has proved that titanium in the production of anti-corrosion equipment applications, high efficiency, long life, in the application of electroplating equipment, does not affect the plating solution can greatly improve the benefits of the plating industry. The effective length of the electric heating element must be fully immersed in the liquid to use.
