Electric heating is the process of converting electric energy into heat energy. Since the discovery that power supply can produce thermal effect through wires, many inventors in the world have been engaged in the research and manufacture of various electric heating appliances. The development and popularization of electric heating, like other industries, follows such a rule: from the country to; From city to countryside; From collective use to family and then to individuals; The product has developed from low-grade to.
Change electric energy into heat energy to heat objects. It is a form of electric energy utilization. Compared with general fuel heating, electric heating can obtain a higher temperature (such as arc heating, the temperature can reach more than 3000 ℃), which is easy to realize automatic control and remote control of temperature. (such as vehicle mounted electric heating cup) can make the heated object maintain a certain temperature distribution as required. Electric heating can generate heat directly inside the object to be heated, so the heating speed is fast, and the overall uniform heating or local heating (including surface heating) can be realized according to the heating process requirements, which is easy to realize vacuum heating and controlled atmosphere heating. In the process of electric heating, less waste gas, residues and smoke are generated, which can keep the heated objects clean and not pollute the environment. Therefore, electric heating is widely used in production, scientific research, test and other fields. Especially in the manufacturing of single crystals and transistors, mechanical parts and surface quenching, smelting of ferroalloys and manufacturing of artificial graphite, electric heating is used.
Medium heating in industry can heat thermal gel, dry grain, paper, wood, and other fibrous materials; It can also preheat the plastic before molding, and glue rubber vulcanization and wood, plastic, etc. Selecting appropriate electric field frequency and device can heat only the adhesive when heating the plywood, without affecting the plywood itself. For homogeneous materials, overall heating can be carried out.
Under the condition that the required power is not very large, the heater has the advantages that traditional heating elements cannot have, such as no open flame, constant temperature heating, high heat conversion rate, long natural life, and little impact by power supply voltage. It is increasingly widely used in electric heating appliances and widely used by R&D engineers. The constant temperature heating PTC thermistor is easy to make, and can be made into different specifications and a variety of shape structures. It has strong plasticity. The common shapes are rectangle, disc, ring, strip and honeycomb with multiple holes. It can be processed into different properties at will. When the required power is large, metal components and the above PTC heating elements can be combined to form various forms of high-power PTC heaters.
Sonna PTC heater uses semiconductor ceramic thermistor as heating element, and uses its PTC hole to heat the original, so that electric energy can be converted into heat energy. Its characteristics are as follows: ◆ True separation of water and electricity: the Sana semiconductor ceramic heating element heats the outer wall of the water pipe, and the structure truly realizes the separation of water and electricity. ◆ Heat: because the heat conduction surface of the heater has a large contact area with water, water bubbles will not be generated on the contact surface (water bubbles will isolate heat conduction), so its heating efficiency is very high; When the semiconductor ceramic heating element is heated, the electric energy is converted into heat energy, and there is no light consumption; In addition to generating heat energy in the heating process, traditional heaters also produce large energy losses. ◆ Self regulation of power: the power of the heater changes with the water temperature in the water tank of the heater. If there is no water in the water tank, the heater will maintain the temperature at a constant temperature after reaching a certain temperature. At this time, there is basically no working current and no power, so the energy saving effect of the heater is very obvious. ◆ Strong corrosion resistance: the heating elements are aluminum profiles that have been oxidized and added with corrosion resistant chemical elements, and the surface of the inner wall of the pipeline in contact with water is coated with an insulating nano antioxidant layer, which greatly improves the corrosion resistance of the pipeline. ◆ Scaling: The heater pipe is heated by straight through overcurrent, and the inner wall of the pipe is smooth and flat. The surface temperature of the heater is only about 220 ℃ when it is dry burned, so the temperature of the water being heated will not be very high, so there will be no scale in the pipeline, so that the thermal efficiency of the heater can be kept stable for a long time, and at the same time, the cost of cleaning and maintenance in the later period will be reduced, so that its service life will be very long.
Zhenjiang Sanna Electric Appliance Co., Ltd. is a source factory producing PTC semiconductor heaters. The enterprise introduced Japanese semiconductor production technology and pioneered PTC semiconductor liquid heaters in China. With the promotion of the policy of replacing coal with electricity in the past two years, the products are widely used in the field of electric heating. It is a brand product of energy-saving and environmental protection electric boilers. Many domestic electric boilers, air energy Solar energy and other manufacturers have joined hands with Sona Electric to carry out environmental protection work, while the enterprise provides electric heating products for Sinopec, Gree and other international enterprises. The PTC semiconductor heater produced by the company is unanimously recognized and strongly supported by all places where coal is converted into electricity, which is a "frequency conversion" energy-saving product. Technology, focus on research and development, and dedicated production, fast, convenient, so that customers.
