Shell-and-tube heat exchangers involve multiple parameters in engineering selection, and procurement personnel often need to quickly verify key indicators. The following Q&A format summarizes the engineering parameters and selection points of the KSH-95 shell-and-tube heat exchanger.
The KSH-95 shell-and-tube heat exchanger is suitable for a temperature difference range of -20°C to 150°C. Thermal expansion is absorbed by the free end of the U-tubes, reducing the impact of thermal stress on the tube bundle and shell. During procurement, it is necessary to confirm whether the on-site medium temperature falls within this range and to verify whether the thermal compensation structure meets the working conditions.
If outlet temperature fluctuations, increased pressure drop, or local abnormal noise occur during operation, they are usually related to fouling, flow distribution, or tube bundle vibration. During the selection stage, the matching of heat transfer area and flow velocity should be evaluated based on medium characteristics and allowable pressure drop. For occasions with limited space or small temperature differences, specifications should be determined after comprehensively comparing heat transfer area and pressure drop to avoid adjustment difficulties caused by insufficient margin.
Sealing performance directly affects heat transfer efficiency and safety. It is recommended to inspect the tube sheet connections and flange sealing surfaces before commissioning, and to regularly observe pressure drop changes during operation. If signs of leakage are found, the condition of gaskets and fasteners should be promptly investigated. The structure of the KSH-95 shell-and-tube heat exchanger facilitates tube bundle extraction for inspection, providing convenience for on-site maintenance.
Procurement personnel should focus on verifying: design temperature and pressure, heat transfer area, tube-side and shell-side media, connection specifications, and material requirements. Combining the above parameters with on-site conditions allows for more reasonable determination of the specification configuration of the KSH-95 shell-and-tube heat exchanger.
