Descriptions of Noblest's Diverse Tube Heat Exchanger Solutions
1. Shell and Tube Heat Exchanger / Fixed Tube and Sheet Heat Exchanger:
Noblest Shell and Tube Heat Exchanger This fixed tube-plate heat exchanger features a simplistic and reliable design. It comprises a tube plate and a shell at both ends, making it a popular choice due to its straightforward structure. In this design, the tube plates at both ends are welded to the shell. Additionally, the tube plate can function as a flange after being welded to the shell, and it connects to the pipe box flange using bolts.
Applications: An indispensable energy-saving apparatus, it facilitates efficient heat transfer between materials. This heat exchanger is extensively employed in industries such as petroleum, chemicals, petrochemicals, metallurgy, electric power, light industry, and food processing. With the progressive adoption of energy-saving technologies, the use of heat exchangers for high and low-temperature heat recovery has garnered significant economic advantages.
The Advantage is its straightforward construction, which ensures the minimum inner diameter of the shell while offering the same heat transfer surface. However, a key drawback is that a significant temperature differential between the shell and pipe medium can induce thermal stress, potentially leading to pipe and tube plate failure, leakage, or instability. Additionally, maintenance and cleaning of the shell can be cumbersome. Despite these challenges, it remains widely used in general applications, though its utility is restricted by temperature differences.
2. U-shaped Style Tube Heat Exchanger
Noblest U-shaped Type Tube Heater This type of shell and tube heat exchanger, a staple in petrochemical equipment, includes main components such as the tube box, shell, and tube bundle. The U-shaped tube heat exchanger has a singular tube plate, with both ends of the pipe affixed to the same tube plate.
Main Features :
Δ The tube bundle can expand and contract freely, eliminating thermal stress due to temperature differences between the tube and shell,
Δ Excellent thermal compensation performance;
Δ Double-tube flow on the shell side extends the flow path, enhances flow velocity, and improves heat transfer performance;
Δ High pressure resistance;
Δ The tube bundle is easily removable from the shell for maintenance and cleaning, making the structure simple and cost-effective.
Applications:
Ideal for scenarios with considerable temperature differences between the tube and shell walls, or where the shell-side medium scales easily, while the tube-side medium remains clean and less prone to scaling. Suitable for high temperature, high pressure, and highly corrosive conditions.
3. Floating Head Tube Heat Exchanger
Noblest Floating Head Heat Exchanger Characterized by having only one end of its tube plate fixed to the shell, the other end is free-moving, known as the floating head. This design includes a floating tube plate, hook ring, and floating head end cover, all detachable to allow the tube bundle to be drawn from the shell. The arrangement ensures there's no thermal stress since the tube bundle and shell can expand and contract without constraints.
Features:
Its strengths include easy cleaning between tubes and no thermal stress generation; however, it has a complex structure and higher cost compared to the fixed tube plate heat exchanger. The equipment is bulkier, consumes more material, and the floating head's small cover is not accessible during operation, necessitating higher sealing standards during manufacturing. It is best suited for applications with significant temperature differences between the shell and tube bundle walls or where the shell medium tends to scale.
Applications:
Δ The tube bundle can be effortlessly drawn out, ensuring seamless cleaning of both the tube and shell processes;
Δ Unrestricted by the temperature difference between mediums, providing unmatched flexibility;
Δ Operates seamlessly under high temperature and high pressure conditions, withstanding temperatures up to 450 degrees and pressures up to 6.4 mpa;
Δ Perfectly suited for applications involving severe scaling conditions;
Δ Ideal for environments prone to pipe corrosion, ensuring longevity and reliability.
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