Although the tube heat exchanger is not as good as the plate heat exchanger in terms of thermal efficiency, compactness, and metal consumption, it has the characteristics of solid structure, high reliability, good adaptability, and wide range of materials. Therefore, it has become the main structural form of high-temperature, high-pressure, and large-scale heat exchangers in petroleum and chemical production.
Tube and tube heat exchangerIt is a detachable heat exchange equipment composed of many corrugated heat transfer plates pressed at corresponding intervals by rubber gaskets. When the plates are assembled, the two groups are arranged alternately, and the rubber sealing strips are fixed with adhesive between the plates. Its function is to prevent fluid leakage and form a narrow network flow channel between the two plates. The heat exchange plates are pressed into a corrugated shape to increase the area and rigidity of the heat exchange plates, and can make the fluid form turbulent flow at low flow rates to achieve the effect of enhanced heat transfer. The four corner holes on the plate form a distribution pipe and a drain header for the fluid. The two heat exchange media flow into their respective flow channels, forming countercurrent or parallel flow through each plate for heat exchange.
Tube and tube heat exchangers mainly include fixed tube plate heat exchangers, floating head heat exchangers, filled box heat exchangers andUTube type heat exchangers, among which the fixed tube plate heat exchanger has a simple structure and low cost, so the tube type heat exchanger is widely used. Tube heat exchangers There are many types of tube heat exchangers in chemical companies, such as plate type, sleeve type, volute type, and tube type.