Working principle When the non-metallic superconducting ion heat source sheet is energized, a terminal voltage is generated. Under the action of an electric field, the moving electrons and ions have a fierce ion collision, and high-speed friction generates field-effect heat energy.
Innovative technology content of electric heater
1. Superconducting heating materials: At present, the materials with good conductivity are Ag, Cu, Al, and their specific resistances are 1.63, 1.694, and 2.67 respectively. These three kinds of raw materials can only conduct electricity and are not excellent materials for heating. The non-metallic superconducting heating material we use has a specific resistance of 0.22, which is more than seven times that of Ag. It can be called a superconducting material.
2. The addition of superconducting raw materials for the heating sheet greatly reduces the thickness of the heating layer of the non-metallic superconducting ion heat source sheet, reduces the unit cross-sectional area of the passing current, increases the number of electrons, and increases the temperature of the heating layer and reduces the heat capacity ratio. Small, achieves the rapid heating of field effect heating, and realizes the purpose of high efficiency and energy saving.
3. Non-metallic superconducting ion heat source sheet heats uniformly: the heating method of the resistance wire structure and the cylindrical structure of the quartz tube and the carbon rod is changed, which overcomes the shortcomings of large heat capacity ratio and large thermal inertia of the heating element, and reduces the heat transfer meson The distance between the heating element and the heat conductor is reduced, and the heating temperature is consistent with the design temperature. Shorten the heating time and greatly reduce the heat loss.
Technical performance
1. Electrical properties: electrical breakdown strength is 90-98KV/mm2. Its dielectric constant and dielectric loss tangent change very little in a wide range of temperature and frequency. The dielectric constant is not only smaller than that of general organic materials, but also decreases with increasing temperature. It has the advantages of arc resistance and corona resistance. It is a raw material between organic and inorganic. It produces SiO2 self-reliance when burned at high temperatures.
2. Heat resistance of silica gel electric heating plate: It has excellent thermal oxidation stability, and can produce four varieties according to different temperature requirements. ①The service life of 200℃ is 50 years; ②The service life of 300℃ is 8 years; ③The service life of 540℃ is 8 Years; ④The service life at 800℃ is 5 years.
3. Cold resistance: It can be used at -50℃, and its performance remains unchanged after repeated impacts of cold and heat.
4. Adhesive performance: It can be coated on the surface of glass and ceramics.
