Monitoring System For High Temperature Heat Transfer Liquid Container Based On Numerical Heat Transfer

Due to the continuous development of today’s society, more and more demand for energy, resulting in growing energy industry equipment, conditions become increasingly demanding, so a lot of vessels and piping are particularly vulnerable to damage and peeling phenomenon caused by large-scale accidents. How can the thickness and accurate monitoring for high temperature storage and transportation equipment, is the need to address the issue, but also to solve the problem of this article. This article is based on research and development of a numerical calculation of heat transfer principles, techniques and implementation of the system liquid container wall thickness of high temperature on-line monitoring.(1) Heat thickness measurement principles and techniques of the research program of high temperature of the container wall. Through the whole process of heat transfer analysis, study conduction, convection and thermal radiation of Heat Transfer, to find the relationship between the thickness and the parameters of structural parameters and physical parameters, such as temperature between proposed based on the relationship between parameters thick thermal measuring principle. On the basis of thermodynamic thickness measurement principle, we raised a number of technical implementation.(2) Numerical Methods of Heat Transfer thickness measurement calculations. Focused on solving: solving method based on the thickness correction and iterative calculations; MATLAB and ANSYS joint calculated data; fluid-solid hot liquid container wall heat conduction and convection heat transfer coupling calculation method; parametric modeling application method ANSYS software container structures exchange methods; thickness correction method based on the heat flux density variations. Achieved during numerical calculations of thermal thickness measurement, wide applicability, the rule is not limited to the container.(3) The initial value of the value of the wall thickness of the iterative Method thickness measurement accuracy and thermal. Comparative Analysis of the merits of various thickness values of the initial value of the iterative method to determine the thickness of one-dimensional calculation condition data as an iterative initial value. In order to analyze the main factors for the thickness measurement method of heat derived thickness of one-dimensional steady-state heat conduction equation for solving the case, and error analysis of various factors, the main reason for seeking thermal gauging error monitoring system, and determine the conditions apply technology and improve the accuracy of the method.(4) Validation of the experimental program of thermodynamic thickness measurement. Based on one-dimensional steady-state heat conduction thickness measurement principle, the design of a depressed inner surface are provided with a hemispherical, conical depression, elongated depressions, semi-cylindrical mold recesses and beveled experiments, the experiment mold wall surface temperature can be as high as 350 ℃, analysis of the experimental results show that the onedimensional heat thickness measurement error between 10% to 16.7%, based on the proven value of the high-temperature heat transfer liquid container wall thickness monitoring principles and methods of technical correctness and proposed feasible.This article, based on the value of the high-temperature heat transfer liquid container wall thickness monitoring principles and methods to provide technical support for the safe operation of the high temperature of the liquid container steel, food, cement and other industrial sectors.