SH3012 5.3.8 Situations where heat exchangers should not be installed on the framework

Clause 5.3.8 of SH3012 addresses the layout of heat exchangers, primarily based on the following considerations: 1. **Convenience for maintenance and repair**: Heat exchangers located on the ground surface are easier to maintain and repair on a daily basis. If the heat exchanger is installed on the framework, especially at a high position, additional equipment and safety measures will be required for maintenance and repair, which increases the complexity and cost of operations. 2. **Risks and consequences of leaks**: For heat exchangers that handle heavy oils or materials that may pollute the environment, leaks can have more severe consequences. If the heat exchanger is located on the ground, the leaked substances can be more easily controlled and cleaned up, whereas leaks on the framework can lead to broader environmental contamination and are more difficult to address promptly. 3. **Structural safety**: Heavy equipment such as heat exchangers, if installed on the framework, may affect the structural safety of the framework. Especially for heat exchangers dealing with heavy or high-temperature materials such as heavy oils, their own weight and operating conditions may require a more robust support structure. 4. **Operational efficiency**: The ground layout can simplify the arrangement of pipelines, reducing their length and number of bends, thereby improving the overall efficiency and reliability of the system. Therefore, considering various factors such as maintenance, safety, structure, and efficiency, heat exchangers used to handle heavy oil products or materials with environmental pollution risks should not be installed on the framework. Such a layout strategy helps to ensure the safe operation of the equipment and environmental protection. .