Detailed Descriptions of NOBLEST's Various Tube Heat Exchangers
1. Shell and Tube Heat Exchanger/Fixed Tube and Sheet Heat Exchanger:
NOBLEST Shell and Tube Heat Exchanger This is a fixed tube-plate heat exchanger, consisting of a tube plate and a shell at both ends. Its simplistic structure makes it widely utilized. The tube plates at both ends of the tube bundle are welded to the shell. The tube plate can also act as a flange after welding with the shell and is connected to the flange of the pipe box by bolts.
Applications: This equipment facilitates efficient heat transfer between materials, playing a significant role in industries such as petroleum, chemical, petrochemical, metallurgy, electric power, light industry, and food processing. As energy-saving technologies advance, the use of heat exchangers for high and low-temperature heat recovery has proven to deliver significant economic benefits.
Advantages: Its simple structure ensures the minimum inner diameter of the shell while maintaining the same heat transfer surface area. However, a notable disadvantage is the development of thermal stress due to significant temperature differences between the shell and pipe medium, potentially leading to pipe and tube plate failure, leakage, or instability. Additionally, maintenance and cleaning processes for the shell are inconvenient. Despite its wide use in general applications, this design is restricted by temperature differences.
2. U-shaped Style Tube Heat Exchanger
NOBLEST U-shaped Type Tube Heater This type of heat exchanger, a subtype of shell and tube heat exchangers, belongs to petrochemical equipment. It comprises main components such as a tube box, shell, and tube bundle. The U-shaped tube heat exchanger features a single tube plate with both ends of the pipe fixed on it.
Main Features:
Δ The tube bundle can expand and contract freely without generating thermal stress due to temperature differences between the tube and shell;
Δ Excellent thermal compensation performance;
Δ Double-tube flow on the shell side provides a longer flow path and higher flow velocity, enhancing heat transfer performance;
Δ High pressure resistance;
Δ The tube bundle can be withdrawn from the shell for maintenance and cleaning, making the structure simple and cost-effective.
Applications:
Ideal for scenarios with significant temperature differences between the tube and shell walls, where the shell-side medium is prone to scaling while the tube-side medium remains clean. Suitable for high-temperature, high-pressure, and highly corrosive conditions.
3. Floating Head Tube Heat Exchanger
NOBLEST Floating Head Heat Exchanger In this type, only one end of the two tube plates is fixed to the shell, while the other end can move freely relative to the shell, forming the 'floating head.' The floating head comprises a floating tube plate, hook ring, and floating head end cover. It's detachable, allowing the tube bundle to be drawn from the shell. This design eliminates thermal stress due to the unconstrained thermal deformation of the tube bundle and shell.
Features:
Advantages include easy cleaning between tubes, and the absence of thermal stress. However, its complex structure and higher costs compared to the fixed tube-plate heat exchanger, along with larger equipment size and material consumption, present some challenges. The small cover of the floating head cannot be inspected during operation, and higher sealing requirements are necessary during manufacturing. Suitable for situations with large temperature differences between the shell and tube bundle or where the shell medium tends to scale.
Applications:
Δ The tube bundle is designed to be easily drawn out, ensuring effortless cleaning of both the tube and shell process;
Δ The temperature difference between mediums is highly flexible, with no limitations;
Δ Capable of operating under extreme conditions, it supports high temperatures up to 450 degrees and pressures up to 6.4 MPa;
Δ Perfectly suited for environments with significant scaling challenges;
Δ Ideal for applications susceptible to pipe corrosion;
Feel free to reach out with any inquiries or for more details. Join the ranks of satisfied NOBLEST customers today.
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