Shell and tube heat exchangers:
Shell and tube (also known as tube type) heat exchanger mainly include shell, tube bundle,tube plate and seal caps . shell mostly round, with internal parallel tubes or spiral , fixed at both ends of the tube bundle plate. Shell and tube heat exchanger Carried out of the two fluids, one flow in the pipe, its stroke is called the tube; a flow in the tube, called a shell of its travel. The wall is the heat transfer surface bundle. Tube models vary, the process is generally 16mm 20mm or 25mm diameter three models, the wall thickness of 1mm, 1.5mm, 2mm and 2.5mm. Import heat exchanger, to be the minimum diameter 8mm, thickness of only 0.6mm. Greatly improving the heat transfer efficiency, also gradually extended in 2012 to open the domestic market. Shell and tube heat exchangers, spiral tubes designed to maximize the effect of increased turbulence, increase heat transfer efficiency. Asymmetrical design of the internal shell and tube layer can be up to 4.6 times. This asymmetrical design, determine its vapor - widely used in the field of water heat exchanger. The maximum heat transfer efficiency can reach 14000w / m2.k, greatly improving production efficiency and cost savings.
Also, because the shell and tube heat exchangers are mostly metal structure, with the introduction of new GMP China, stainless steel 316L as the main heat exchanger, will become the beverage, food, and pharmaceutical industries Required.