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Finite Element Analysis of the Tubesheet in High-temperature Tubular Heat Exchanger

Author: XingFang
Tutor: LiuChangHai；ZhangZhi
School: Northeast University of Petroleum
Course: Mechanical Engineering
Keywords: Finite Element Analysis High temperature shell and tube heat exchanger Tube plate ALGOR
CLC: TQ051.5
Type: Master's thesis
Year: 2010
Downloads: 128
Quote: 0
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Abstract


Shell and tube heat exchangers the typical process widely used in the chemical, refining and other industrial equipment, tube plate is connected to the casing , tubes and tube box , pressure and thermal expansion as well as from the main components of this three-part load . Occasions of high temperature , the correct analysis of the tube plate by the force of the state to ensure the safe operation of the heat exchanger and saving material plays a very important role . In this thesis, the the ALGOR establishment of a three-dimensional finite element model of shell , heat exchange tubes , including tube plate . On this basis , the analysis of the temperature distribution of the tube plate and 4732-1995 were analyzed in accordance with the design standards of the stress analysis of JB tube plate started normal work and parking process may appear seven transient and steady-state operation . the strength of the status of the operating conditions . The temperature of the tube sheet through the analysis of the temperature field distribution law : the temperature is close to most of the thickness of the piping zone of the tube sheet , tube sheet heat transfer tube tube fluid temperature flowing through there , only close to the shell in the tube plate the temperature was close to a very thin layer of fluid side of the tube sheet material in the vicinity of shell fluid temperature . This phenomenon is called \By strength analysis showed that the temperature load on the tube plate , resulting in a larger thermal stress, but also in the temperature load and the pressure load the working conditions of the joint action of the thermal stress of the stress distribution of the entire tube plate system ; risk of the tube plate of the study of the present title conditions occurred in tube load , the shell loads and temperature loads simultaneously under normal operating conditions , the first stop in the shell pressure ( load and temperature load of the tube at the same time the role ) and tube pressure first stop ( the shell load and temperature load transient operating conditions of the role) is more dangerous condition . Through analysis , the original design of the tube plate started seven normal work and parking process may strength check of transient and steady-state operating conditions are satisfactory . The thesis final safety verification of its original design .

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CLC: > Industrial Technology > Chemical Industry > General issues > Chemical machinery and apparatus, equipment > Chemical process machinery and equipment > Heating, cooling machinery
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