Product Description
This catalog is carefully selected for you by Yangzhou Darui Co., Ltd.:
Electric heating is the process of converting electrical energy into thermal energy. Since the discovery that electric current can produce thermal effects through conductors, many inventors around the world have been engaged in the research and manufacturing of various electric heating appliances. The development and widespread application of electric heating, like other industries, follows a pattern: gradually spreading from advanced countries to the rest of the world; from cities to rural areas; from collective use to household and individual use; and from low-end to high-end products. In the 19th century, electric heating appliances in their infancy were mostly crude. The earliest electric heating appliances were for domestic use. In 1893, the prototype of the electric iron first appeared and was used in the United States. Then in 1909, the electric stove came into use, where an electric heater was placed in the stove, meaning heating shifted from firewood to electricity, i.e., from electrical energy to thermal energy. However, the rapid development of the electric heating appliance industry truly began after the invention of nickel-chromium alloy as a heating element. In 1910, the United States first successfully developed an electric iron using nickel-chromium alloy heating wire, which fundamentally improved the structure of the iron and quickly popularized its use. By 1925, products with electric heating elements installed in pots in Japan became the prototype of modern rice cookers. During this period, industrial electric heating products such as laboratory electric furnaces, glue melters, and heaters also emerged. The period from 1910 to 1925 was a major development stage in the history of electric heating appliances. In both households and industries, various types of electric heating appliances emerged and were rapidly popularized, especially in households. Therefore, the invention of nickel-chromium alloy laid the foundation for the development of the electric heating appliance industry.
After the 1920s, there were not as many new application developments as in the previous period, but during this stage, all kinds of electric heating appliances were redesigned and continuously improved, marking an upgrading phase in the history of electric heating appliances. In household electric heating appliances, various devices were designed to be more aesthetically pleasing, durable, and robust, and most were equipped with automatic temperature and time control.
QZD220 Frame Electric Heater Manufacturing frame heaters, heat treatment temperature control equipment, flux ovens, heat treatment furnaces, etc. Frame heaters have been widely used in national key projects for many years, involving industries such as shipbuilding and pressure vessels for local and overall heat treatment.
This heater can be arranged inside large pressure vessels such as spherical tanks and horizontal tanks for overall heat treatment of workpieces.
QZD220 Frame Electric Heater
An electric heater is an appliance that uses electrical energy to achieve heating effects. It is compact, has high heating power, and is widely used. It adopts intelligent control mode with high temperature control accuracy and can be connected to a computer network. It has a wide range of applications, long service life, and high reliability. The core of the heater's principle is energy conversion, the most common being the conversion of electrical energy into thermal energy.
Heaters are commonly used electric heating devices. People are increasingly dependent on them.
For example, an electric heater uses metal to generate eddy currents in an alternating magnetic field, causing it to heat up and absorb energy, converting electrical energy into light energy; for example, a solar water heater absorbs solar radiation heat and solar light energy (photoelectric effect) to convert into thermal energy, or both; bioenergy is a form of energy stored as chemical energy using organisms as carriers, directly or indirectly derived from plant photosynthesis. In addition, there are other energy conversion modes such as nuclear energy and wind energy, but they generally need to be converted into electrical energy for use.
