Heat Exchange tube
GLORYTUBETECH is Heat Exchange tube manufacturer in China.
The heat exchange tube is one of the elements of the heat exchanger and is placed in the cylinder for heat exchange between two media. It has high thermal conductivity and good isothermal properties. It is a device that can quickly transfer heat energy from one point to another, and there is almost no heat loss, so it is called a heat transfer superconductor, and its thermal conductivity is thousands of times that of copper.
Available types of heat exchange tube from Glorytubetech
In addition to light tubes, heat exchangers can also use a variety of enhanced heat transfer tubes, such as finned tubes, threaded tubes, spirally grooved tubes, etc. When the heat-supply coefficient on both sides of the inner diameter of the tube differs greatly, the fin of the finned tube should be arranged on the side with the lower heat-supply coefficient.
The commonly used dimensions (outer diameter x wall thickness) of heat exchange tubes are mainly seamless steel pipes of Φ19mmx2mm, Φ25mmx2.5mm and Φ38mmx2.5mm and stainless steel pipes of Φ25mmx2mm and Φ38mmx2.5mm. Standard pipe lengths are 1.5, 2.0, 3.0, 4.5, 6.0, 9.0m, etc. The use of a small pipe diameter can increase the heat transfer area per unit volume, make the structure compact, reduce metal consumption, and increase the heat transfer coefficient. It is estimated that changing the heat exchange tube of the heat exchanger with the same diameter from Φ25mm to Φ19mm will increase the heat transfer area by about 40% and save more than 20% of metal. However, small pipe diameters have high fluid resistance, which is inconvenient to clean and easy to foul and block. Generally, large-diameter tubes are used for viscous or dirty fluids, and small-diameter tubes are used for cleaner fluids.
Commonly used materials include carbon steel, low-alloy steel, stainless steel, copper, copper-nickel alloy, aluminum alloy, titanium, etc. In addition, there are some non-metallic materials, such as graphite, ceramics, polytetrafluoroethylene and so on. Appropriate materials should be selected according to the working pressure, temperature and corrosiveness of the medium during design.