Design of shell and tube heat exchanger
The design of heat exchanger tube shell type: shell and tube heat exchanger with heat transfer performance of superior performance, is inseparable with the design parameters, to determine its quality, quality of the heat exchanger manufacturers will have a professional team of designers, to provide quality services. Jiangsu Henglida machinery company has developed for 13 years experience in heat exchanger, is a research, design, manufacture, operation and management of the professional team, we are committed to the heat exchanger industry, to provide one-stop quality service, tailored for the customer!
Shell and tube heat exchanger
The specific steps of the design of the heat exchanger are as follows:
1) according to the user to provide heat transfer area parameters, set the corresponding model.
According to the user to provide heat transfer area parameters calculated heat transfer.
Determining the flow path of the fluid in the shell.
Determining the temperature of the two ends of the heat exchanger to calculate the heat transfer temperature.
The calculation of the temperature difference between inlet and outlet, and according to the temperature difference correction system.
Based on the requirements and design of the two fluid temperature, determine the types of heat.
According to the nature and experience in the design of heat transfer fluid, selecting the numerical heat transfer system.
On the basis of the total heat transfer rate equation, the heat transfer area is calculated and preliminary, determine the basic size of the heat exchanger or by series of criteria for the selection of equipment specifications.
Shell and tube heat exchanger
2) calculation of tube, shell side pressure drop according to the primary equipment specifications, calculate the flow rate and pressure drop of the tube, shell, check whether the calculation results are reasonable or to meet the technical requirements. If the pressure drop does not meet the requirements, to adjust the flow rate, and then determine the tube and baffle spacing, or choose other types of heat exchanger, re calculate the pressure drop until the requirements are met.
(3) the shell tube, the convection heat transfer coefficient to calculate the total heat transfer coefficient calculation, determine the fouling resistance and heat transfer coefficient calculation, and then the value comparison, if the primary heat exchanger is suitable, or need to choose values, repeat the calculation steps