What are the heating equipment in Henan? Familiar with the working principle of heating equipment
When making hardware tools, heating is a very important process. Therefore, people have invented a lot of heating equipment. So, what are the heating equipment in Henan? Can you name a few? If you don’t know it yet, then Find the answer to this question below. Henan heating equipment 1. Heating Kehua pointed out that according to the acquisition of thermal energy, it can be divided into two categories: direct and indirect. Direct heat source heating is to directly add heat energy to the material, such as flue gas heating, electric current heating and solar radiation heating. Indirect heat source heating is to add the heat energy of the above-mentioned direct heat source to an intermediate heating medium, and then the intermediate heating medium transfers the heat energy to the material, such as steam heating, hot water heating, mineral oil heating, etc. 2. The working principle of the heating equipment The working principle is to install a primary coil with a larger number of turns and a secondary coil with a smaller number of turns on the same iron core. The voltage ratio of the input to the output is equal to the ratio of the turns of the coil, while the energy remains the same. Therefore, the secondary coil generates a large current under low voltage conditions. For induction heaters, the bearing is a short-circuited, single-turn secondary coil that passes large currents at lower AC voltages, thereby generating large amounts of heat. The heater itself and the yoke are kept at room temperature. Since this heating method induces an electric current, the bearing becomes magnetized. It is important to ensure that the bearing is demagnetized later so that it does not pick up magnetic metal chips during operation. FAG induction heaters have automatic degaussing function. It is the use of metal to generate eddy current in an alternating magnetic field to heat itself, and is usually used in metal heat treatment. The principle is that when a thicker metal is in an alternating magnetic field, an electric current is generated due to the phenomenon of electromagnetic induction. After the thicker metal generates current, the current will form a spiral flow path inside the metal, so that the heat generated by the current flow is absorbed by the metal itself, which will cause the metal to heat up quickly. This equipment is an energy-saving equipment for pre-heating or secondary heating of fuel oil. It is installed before the combustion equipment to realize the heating of fuel oil before combustion, so that it can reduce the temperature at high temperature (105℃-150℃). The viscosity of the fuel oil promotes full atomization and combustion, and ultimately achieves the purpose of saving energy. It is widely used in pre-heating or secondary heating of heavy oil, asphalt, clean oil and other fuel oils. Henan heating equipment 3. What are the commonly used heating equipment? Kehua believes that the commonly used heating equipment mainly includes resistance furnace, electric arc furnace and far infrared heating furnace. Resistance furnace is an industrial furnace that uses electric current to heat the electric heating element or heating medium in the furnace, thereby heating the workpiece or material. Resistance furnaces are used in the machinery industry for heating before metal forging, metal heat treatment heating, brazing, powder metallurgy sintering, glass ceramic roasting and annealing, melting of low melting point metals, drying of sand molds and paint films, etc. Its appearance is shown in the figure below. . Electric arc furnaces are electric furnaces that smelt ores and metals at high temperatures generated by an electrode arc. When the gas discharge forms an arc, the energy is very concentrated; the temperature of the isolated zone is above 3000 ℃. For metal smelting, the electric arc furnace is more flexible than other steelmaking furnaces, and can effectively remove impurities such as sulfur and phosphorus. The furnace temperature is easy to control, and the equipment occupies a small area. The electric arc furnace uses electric energy as the heat source, and the atmosphere in the furnace can be adjusted, which is extremely beneficial to the melting of steels containing many easily oxidizable elements. The far-infrared heating furnace uses far-infrared heating elements to convert electrical energy into heat energy. Its heating work box and box shell insulation layer are made of high-quality aluminum silicate. The electrical control system of the far-infrared heating furnace adopts AC frequency conversion, programmable control, multi-unit and sub-power synchronization, which can independently control the heating of a single system of the equipment. The setting can be adjusted arbitrarily, that is, the operating temperature can be adjusted within the range of 0-500 ℃ according to the process requirements, and there are temperature display and low and high temperature alarm devices. The content of Henan heating equipment is as mentioned above. We can see that resistance furnace, electric arc furnace and far-infrared heating furnace are the most common southern heating equipment, and they have made great contributions in life.