Radiator is a kind of heating equipment favored by modern industrial enterprises, which can not only meet the needs of industrial enterprises for temperature, but also make indoor people more comfortable, will not have a very dry feeling, more comfortable and reasonable. There are many manufacturers of finned tube radiators in the manufacturer, and the quality of the finned tube radiators manufactured by each factory is uneven, and users in many radiators, how to choose a radiator with better performance and better quality? In fact, we can see from the surface how good or bad the radiator is.
The factory produces finned tube radiators are polished, polishing and polishing process also needs professionals to complete, good grinding and polishing process will make the surface of industrial finned tube radiators very smooth, flat, will not produce uneven phenomenon, through this method, users can make judgments and choices. In order to improve the heat exchange efficiency, fins are usually added to the surface of the heat exchange tube to increase the outer wall (or inner wall) area of the heat exchange tube to improve the heat exchange efficiency. At present, it is widely used in boiler economizers, air preheaters, waste heat boilers, chemical industry, pressure vessels and other industries. As a high-efficiency heat transfer element, finned tubes can operate for a long time in high-temperature flue gas environments. For example, the fin tube of the boiler heat exchanger has a harsh environment, high temperature and high pressure, corrosive air, and the finned tube is required to have high corrosion resistance, wear resistance, small contact thermal resistance, good stability and large force.
The heat transfer coefficient of stainless steel tube is lower than that of copper tube, so in addition to the overall rolling of fins in the fin tube of the heat exchanger, various production process methods are to make a certain degree of contact thermal resistance between the base tube and the fin. Due to the difficulty of contact thermal resistance research, the experimental research on finned tubes at this stage is basically carried out for factors such as slit form, fin spacing, number of pipes, pipe spacing, etc., most of which do not involve thermal resistance, or actually attribute the contact thermal resistance to the gas side.
It is also beneficial that the amount of heat consumed by the outer fin tube radiator to break through the outer cover is negligible. Due to the role of the outer cover, dust has less effect on the radiator, and the user is better taken care of when sorting the radiator.