The latest type of far-infrared electric heater and its application in the chemical industry

The latest type of far-infrared electric heater and its application in the chemical industry

The far-infrared electric heater is a new generation of heating equipment for reaction vessels. It has the advantages of reasonable structural design, good radiation effect, safety and reliability, obvious energy saving, long service life, noiseless operation, pollution-free operation, no additional space occupation, precise temperature control, and simple device operation. It saves production costs by more than 30% compared to original thermal oil and steam heating. In the context of energy conservation, emission reduction, and environmental protection, many large chemical units at home and abroad are correspondingly replacing thermal oil and steam heating with far-infrared heating. The products are widely used in industries such as automobiles, textiles, printing and dyeing, dyes, papermaking, bicycles, refrigerators, washing machines, chemical fibers, ceramics, electrostatic spraying, grain, food, pharmaceuticals, chemicals, tobacco, etc., with the intention of achieving ultra fast and dry heating. They are particularly suitable for chemical reaction kettles, large drying rooms for leather machinery, ovens, and flowing drying channels. The far-infrared electric heater uses the method of electric heating to connect with far-infrared technology and evenly dissipates heat into the reactor. It is a radiation type heater, and far-infrared has the effect of promoting blood circulation, which is beneficial and harmless to the human body.

Silicon carbide far-infrared radiation element is the primary component of the heater, with a room temperature flexural strength of 45Mpa and a high temperature flexural strength of 50Mpa at 1000 ℃. The volume density is 2.7-2.75g/cm3900 ℃, and the thermal expansion rate is 0.42-0.48%. The thermal conductivity coefficient (350 ℃) is 10.3-16.7w/m.k.

After being powered on, the far-infrared heater can form extremely strong broad-spectrum directional radiation in a straight space. It effectively converts electrical energy into far-infrared radiation energy, which is directly transmitted to the dried object and quickly converted into molecular thermal motion, achieving the intention of rapid drying and shaping from the inside out, and achieving significant energy-saving effects. When far-infrared radiation reaches an object, it can cause absorption, reflection, and transmission. The heated and dry substance absorbs far-infrared radiation energy together with surface molecules at a certain depth, resulting in self heating effect, causing solvent or water molecules to evaporate and generate heat evenly. Then, it avoids deformation and mutation caused by different degrees of thermal expansion, ensuring that the appearance, physical and mechanical properties, fastness, and color of the substance remain intact.

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