Shell and tube heat exchangers are a dependable heat transfer technology. Various industries trust this heat exchanger for reliable and efficient heat transfer for their operating conditions, temperatures and fluids.
What Is a Shell and Tube Heat Exchanger?
This heat exchanger design transfers heat between two fluids. The first fluid flows through tubes, and the second fluid flows around the tubes in an outer shell. Some key components of these exchangers include:
- Shell side: The outer cylindrical compartment where one fluid flows around the outside of the internal tube bundle.
- Tube bundle: The assembly of parallel tubes, tube sheets and baffles that carries one fluid and transfers thermal energy between the fluids.
- Baffles: Internal metal plates that create turbulence in the shell side.
- Tube sheets: The thick, flat metal plates with drilled holes to hold, support and seal the ends of the heat transfer tubes while keeping the liquids separate.
The tube-side flow directs fluid through the tube bundle interior, while the shell-side flow moves through the shell outside the tube bundle. Heat transfers through the tube walls via:
- Conduction: Heat travels through the tube wall.
- Convection: Occurs between the fluid and tube wall surfaces when the fluid carries heat away.
As a result, fluids exit the exchanger at different temperatures without ever mixing.
What Makes a Shell and Tube Heat Exchanger Unique?
Shell and tube heat exchangers are different from other types of heat exchangers due to their:
- Strong performance: These heat exchangers can handle high temperature and pressure conditions.
- Contamination prevention: Since the two fluids don’t mix, shell and tube heat exchangers are best used when contamination is a concern.
- Turbulent flow: The baffles create turbulence, which mixes the fluid against the tube walls to improve heat transfer. The configuration of the baffles and the number of tubes impact turbulence and fluid velocity to maximize heat transfer.
- Versatility: Many shell and tube designs exist for different materials, temperature and pressure requirements.
Uses for Shell and Tube Heat Exchangers
This heat exchanger has many applications, including:
- Pharmaceutical and biotech: Heat exchangers provide controlled temperature management for the sensitive products in this industry.
- Food and beverage: These heat exchangers maintain hygiene and support temperature control for even cooling and heating, required for pasteurization.
- Industrial processing: Heat exchangers heat, condense and cool fluids in chemical and manufacturing systems.
- Gas processing: This exchanger type can withstand the high pressures common in gas processing and transmission.
- HVAC and refrigeration: Shell and tube heat exchangers are used in condensers and chillers to regulate temperature.
Order Shell and Tube Heat Exchangers From Louisiana Chemical Equipment Company Today
Louisiana Chemical Equipment Company (LCEC) offers a vast inventory of shell and tube heat exchangers to support heat transfer. These exchangers are available as inspected to meet your operational demands.
Find the used heat exchangers that your industrial processes need from LCEC. Explore our online selection, and submit a purchase request or call us at +1-866-289-5232.
