Shell and Tube Heat Exchanger

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☆Product Introduction

Shell and tube heat exchangers are common heat transfer equipment widely used in industries such as chemical engineering, petroleum, food, and pharmaceuticals. Their working principle relies on heat transfer between fluids in the shell side and tube side. The heat source flows into the heat exchanger through the tube side, where the fluid travels inside the tubes, getting heated or cooled, and transfers heat to another fluid in the shell side. This tubular design enables efficient heat transfer between the two fluids.• Straight Tube/U-Tube Heat Exchangers
• Safety-Certified Heat Exchangers
• All TEMA-standard designs
• Suitable for handling ‌any liquid or gaseous media‌
• ‌Product dimensions‌: Up to 2,000 mm in diameter and 10 m in length
• ‌Operating pressure‌: Up to ‌600 bar‌
• ‌Inlet temperature tolerance‌: Up to ‌550°C‌
• Available in both ‌standard‌ and ‌custom configurations

‌Fixed Tube Sheet Heat Exchanger‌
‌Category‌: Shell-and-Tube Heat Exchanger
‌Product Keywords‌: Shell-and-Tube Heat Exchanger, Plate Heat Exchanger, Heat Exchange System

☆Product Types

Shell and tube heat exchangers are classified by structural features as follows:

• Fixed Tube Sheet Heat Exchanger

The tube sheets at both ends are integrated with the shell. This type features a simple structure and low cost but is difficult to clean externally. It is suitable for scenarios where the temperature difference between the two fluids is less than 50°C, and the shell-side fluid is clean and non-fouling.

• Floating Head Heat Exchanger

One tube sheet is not connected to the shell (the “floating head”), allowing the tube bundle to expand freely independent of the shell. The bundle can be pulled out for easy cleaning and maintenance, making it suitable for heat transfer with large fluid temperature differences. It is widely used but has a complex structure and high cost.

• Packed Exchanger

One end of the tube bundle can expand freely. Compared to floating head exchangers, it has a simpler structure and lower cost, but there is a risk of shell-side fluid leakage. Thus, it cannot handle flammable or explosive fluids.

• U-Tube Heat Exchanger

Tubes are fixed at both ends on the same tube sheet and can expand freely independent of other tubes and the shell. This type has a relatively simple structure and light weight, suitable for high-temperature and high-pressure applications. However, internal tube cleaning is difficult, and tube sheet utilization is low.

☆ ‌Structural Features‌

1. ‌Integrated Tube Sheet and Shell Design‌

   • Tube sheets are welded to the cylindrical shell, forming a rigid structure with non-removable tube bundles7.
   • Optional expansion joints on the shell compensate for thermal stress under large temperature differentials7.

2. ‌Compact Layout and High Efficiency‌

   • Optimized tube arrangement maximizes heat transfer area within a compact footprint78.
   • Supports multi-pass configurations (1, 2, 4, or 6 passes) for diverse flow and heat exchange requirements7.

3. ‌Rigorous Design Validation‌

   • GNEE products undergo theoretical modeling and experimental testing to ensure performance reliability7.
   • Decades of engineering expertise in material selection and manufacturing processes guarantee high-quality solutions7.

☆ ‌Application Fields‌

• ‌Cross-Industry Versatility‌:
  Widely used in ‌petrochemical, pharmaceutical, HVAC, and industrial cooling/heating systems‌ for liquid or gas media45.
• ‌Typical Scenarios‌:
  • Heating viscous fluids (e.g., oils) or condensing vapors in chemical processes45.
  • Cooling high-temperature gases in power generation systems7.

‌Note‌: For extreme operating conditions (>400°C or corrosive media), consult GNEE for customized material upgrades (e.g., titanium alloys, duplex stainless steel)