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1. This document introduces the modifications and additions made to the \"Heat Exchangers\" standard (GB/T151–new version) compared with GB/T151–2014. The GB/T151 standard has been in use for over a decade; during this time, the \"Safety Technical Supervision Regulations for Fixed Pressure Vessels\" as well as GB/T150 have been revised. The materials, components, and non-destructive testing standards referenced by these standards have also been updated, and accordingly, GB/T151 has been revised and improved as well. Understanding the changes in various aspects of the regulations helps to better grasp the new requirements of this standard and promotes the high-quality development of heat exchangers. The modifications include: maximum nominal diameter, TI-class tube bundles, failure modes of heat exchangers, energy efficiency requirements and testing and evaluation methods for heat exchangers, classification of welded joints, procedures for using heat exchange tube steels that do not fall into any specific category, heat treatment methods after bending U-tubes in stress-corrosion environments, conditions under which welded pipe ends require re-evaluation of the welding process, requirements for anti-erosion structures, manufacturing tolerances, computational mechanical models of tube sheets, and so on. 2. Two common simulation software functions and modules for heat exchangers: Input of design conditions/parameters ； Use of software for material property simulation ； Viewing, adjusting, and exporting calculation reports ； Property data generated by other simulation software (such as ASPEN PLUS) is imported into the heat exchanger software. 3. Selection and matching of shell-and-tube structure and tube-side parameters: Selection of heat exchanger heads and shells (TEMA and GB151), selection of heat exchange tubes (reference standards, material selection, specifications), tube arrangement and stratification, baffle placement (baffle types, spacing, positioning, and cuts), gap setting, nozzles definition, flow guide structure setup, anti-scouring structure setup, and other settings. 4. Software operation practice* and Q&A (II) Day 2: 1. Examples* and Q&A related to single-phase shell-and-tube heat exchangers 2. Design and optimization of heat exchangers without phase change: gas-water heat exchangers, gas-gas heat exchangers, oil-water heat exchangers, water-water heat exchangers 3. Design and optimization of condensers; common condenser structures ； Classification of condensation flow patterns ； Low-pressure waste steam condenser (1 case) ； Medium and high pressure process steam condenser (1 example) ； Top reflux condenser (1 case). 4. Design and optimization of reboilers: Conventional reboiler designs (2 examples) ； Thermosiphonic reboiler (1 example) ； Falling film reboiler (1 case). 5. Using engineering examples, explain how structural optimization can be used to prevent vibration in heat exchanger tubes. 6. Software operation practice and Q&A. (III) Day 3: 1. Introduction to the structures of air coolers, economizers, etc., and their parameter input – including the structure of air coolers, framework settings, fan settings, tube bundle settings, settings for heat exchange tubes and fins, as well as settings for other structural components. 2. Provide an introduction to the output by citing examples; discuss the optimization directions and classification of common issues in the output report (summary table of results, overall output table, and detailed analysis of the inner and outer sides of the pipe). 3. Example Explanation and Optimization Example 1: Conventional Air Cooler (Design-Verification) ； Example 2: Economizer (verification) ； Example 3: Natural air cooling (simulation). Example 4: Air cooling in the refrigeration industry (verification mode design). 4. Heat exchanger calculation – Heat flow calculation ； Wall temperature calculation ； Flow resistance of the fluid in the heat exchanger ； Verification of the main structural dimensions of the heat exchanger. 5. Examples of troubleshooting for heat exchangers: Analysis of the causes of failures in on-site heat exchangers, corrective measures taken, and their operating conditions after modifications. 6. Software operation practice and Q&A. (IV) Day 4: 1. Engineering design and simulation calculations for plate heat exchangers – Explanation of the currently prevalent plate types used in plate heat exchangers, process setup (use of high- and low-profile plates), arrangement of corner holes, and parameter matching. 2. Provide an introduction through examples, including an output report (summary table of results, overall output table, detailed analysis of the cold and hot sides), optimization directions, and classification of common issues. 3. Examples of plate heat exchangers and their optimization 4. Software operation practice and Q&A 5. Examples of enhanced design for heat exchangers, the principles behind enhancing efficiency of new types of high-performance heat exchange elements, as well as applicable scenarios and application cases. 813144026@qq.com or please leave your contact information