[工学]浮头换热器公式.docVIP

浮头式换热器303机械设计 摘 要 换热器是实现化工生产过程中热量交换和传递不可缺少的设备。在热量交换中常有一些腐蚀性、氧化性很强的物料，因此，要求制造换热器的材料具有抗强腐蚀性能。在石油、化工、轻工、制药、能源等工业生产中，常常需要把低温流体加热或者把高温流体冷却，把液体汽化成蒸汽或者把蒸汽冷凝成液体。这些过程均和热量传递有着密切联系，因而均可以通过换热器来完成Floating head heat exchanger mechanical design 303 Abstract Heat exchanger is the realization of chemical processes of heat exchange and transmission of essential equipment. Some of the heat exchange often corrosive, oxidizing materials, strong, therefore, require manufacturers of heat exchanger material with high corrosion resistance. In the petroleum, chemical, light industry, pharmaceuticals, energy and other industrial production, often need to heat or cold to hot fluid flow cooling, the liquid vaporized into steam or the steam condensing into a liquid. These processes are closely linked and heat transfer, which can be done through the heat exchanger. This paper reviews the application of the direction of the heat exchanger, history, types and characteristics of the type of heat exchanger options. Focuses on the current heat exchangers in a variety of forms, the most widely used and most important floating head heat exchanger. Floating head heat exchanger including the basic types, structural features, pressure test methods, also based on the knowledge of the floating head heat exchanger performance analysis. In strict accordance with GB150 - 1998 Steel Pressure Vessels and GB151 - 1999 shell and tube heat exchanger and other national standards, reference books, some relevant aspects of the design out of a typical floating head heat exchanger. Floating head heat exchanger design, including the various parts of the structure type and material selection, structure size determination, the choice of connection between parts, and pressure testing. Identify problems in the design of a large number of different designs through the calculation of the program, selected parts of the structure and size, material and heat transfer performance repeatedly verify and check, made a theoretical ana