Descriptions of NOBLEST Different Types of Tube Heat Exchangers
1. Shell and Tube Heat Exchanger/Fixed Tube and Sheet Heat Exchanger:
NOBLEST Shell and Tube Heat Exchanger r is a fixed tube-plate heat exchanger. It consists of a tube plate and a shell at both ends, making it widely utilized due to its simplistic structure. This type of heat exchanger refers to a design where the tube plates at both ends of the bundle are welded to the shell. The tube plate can also serve as a flange after welding with the shell, and is connected to the pipe box flange using bolts.
Applications: This equipment serves as an energy-saving facilitator for heat transfer between materials, finding extensive applications in industries such as petroleum, chemical, petrochemical, metallurgy, electric power, light industry, and food. With the continuous expansion of energy-saving technology applications, the utilization of heat exchangers for both high and low-temperature heat recovery has yielded significant economic benefits.
The Advantages lie in its simple structure, ensuring the minimum inner diameter of the shell while maintaining the same heat transfer surface. However, a notable disadvantage arises when a significant temperature difference exists between the shell and pipe medium, leading to thermal stress that may cause pipe and tube plate failure, leakage, or instability. Additionally, the maintenance and cleaning processes for the shell are inconvenient. Despite being widely used in general applications, this design is limited by temperature differences.
2. U-Shaped Style Tube Heat Exchanger
NOBLEST U-Shaped Type Tube Heater is a kind of shell and tube heat exchanger, primarily used in petrochemical equipment. It is composed of main components such as the tube box, shell, and tube bundle. The U-shaped tube heat exchanger features only one tube plate, with both ends of the pipe fixed on the same tube plate.
The Main Features :
Δ The tube bundle can freely expand and contract without generating thermal stress due to the temperature difference between the tube and shell;
Δ Excellent thermal compensation performance;
Δ The shell side has a double-tube flow, providing a longer flow path and higher flow velocity, resulting in better heat transfer performance;
Δ High pressure resistance;
Δ The tube bundle can be easily withdrawn from the shell for maintenance and cleaning, making the structure simple and cost-effective.
Applications:
Ideal for scenarios where there is a large temperature difference between the tube and shell walls, or where the shell-side medium is prone to scaling while the tube-side medium remains clean and less prone to scaling. Suitable for high temperature, high pressure, and strongly corrosive conditions.
3. Floating Head Tube Heat Exchanger
NOBLEST Floating Head Heat Exchanger features only one end of the tube plate being fixed with the shell, while the other end can move freely relative to the shell, referred to as the floating head. The floating head is composed of a floating tube plate, a hook ring, and a floating head end cover. It is detachable, and the tube bundle can be drawn from the shell. The thermal deformation of the tube bundle and the shell are not constrained, preventing thermal stress.
Features:
The advantages include convenient cleaning between tubes, and no thermal stress generation. However, its complex structure results in higher costs compared to the fixed tube-plate heat exchanger, along with increased bulkiness and material consumption. The small cover of the floating head cannot be inspected during operation, and higher sealing requirements are necessary during manufacturing. It is suitable for applications where there is a large temperature difference between the shell and the tube bundle, or where the shell-side medium is prone to scaling.
Applications:
Δ The tube bundle can be effortlessly drawn out, simplifying the cleaning process for both the tube and shell.
Δ The temperature differential between mediums is unrestricted, offering versatile application.
Δ Capable of operating under high temperature and pressure conditions, generally up to 450°C and 6.4 MPa, ensuring robust performance.
Δ Ideal for environments with severe scaling issues, maintaining efficiency and reliability.
Δ Suitable for applications where pipe corrosion is a concern, offering longevity and durability.
Feel free to reach out for any additional details or inquiries. We look forward to making you the next valued customer of NOBLEST.
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