1. Shell: usually made of stainless steel, providing the external frame of the heat exchanger,
2. Tube bundle: composed of many stainless steel tubes
3. Tube sheet: used to fix the tube bundle and connect the tube to the shell.
4. Head: located at both ends of the shell, closing the shell and providing an interface for connecting the pipeline.
5. Baffle: installed in the shell to change the flow direction of the fluid, enhance turbulence and improve heat transfer efficiency.
6. The inner and outer surfaces are mirror polished, with a roughness of Ra≤0.4μm
Ⅱ. Working principle of sanitary stainless steel heat exchanger
The working principle of sanitary stainless steel heat exchanger is based on heat conduction and convection heat transfer:
1. The hot fluid flows in the tube and transfers the heat it carries through the tube wall.
2. The cold fluid flows outside the tube, absorbs heat from the tube wall, and increases the temperature of the cold fluid.
3. The tube wall acts as a medium for heat exchange, transferring heat from the hot fluid to the cold fluid.
Ⅲ. Characteristics of sanitary stainless steel heat exchangers
1. Corrosion resistance: Stainless steel materials have good corrosion resistance and are suitable for a variety of chemical media.
2. High temperature and high pressure resistance: Suitable for high temperature and high pressure working environments.
3. Easy to clean and maintain: The tube bundle can be disassembled for easy cleaning and maintenance.
4. High heat transfer efficiency: Due to the turbulent flow of the fluid inside and outside the tube, the heat transfer efficiency is high.
5. Compact structure: Small size, small footprint, suitable for occasions with limited space.
6. Easy installation: Modular design, easy installation and disassembly.
7. Not easy to scale: The inner wall is smooth, reducing the possibility of scaling.
Ⅳ. Application fields of sanitary stainless steel heat exchangers
1. Electronic industry: used for heating, cooling, condensation and evaporation processes.
2. Food industry: used for heating and cooling of products such as milk, juice, beer.
3. Pharmaceutical industry: used for heat exchange in product synthesis and preparation processes.