Fixed Tube and Sheet Heat Exchanger for Liquid Medium

NOBLEST Shell and Tube Heat Exchange The fixed tube-plate heat exchanger by NOBLEST consists of a tube plate and a shell at both ends, making it highly regarded due to its straightforward structure. In this design, the tube plates at both ends of the bundle are welded to the shell. Post-welding, the tube plate can also function as a flange and is bolted to the flange of the pipe box, ensuring secure and durable connections.

Applications: This energy-efficient equipment is designed to facilitate heat transfer between materials, making it indispensable in industries such as petroleum, chemical, petrochemical, metallurgy, electric power, light industry, and food processing. As energy-saving technologies continue to advance, the use of heat exchangers for both high and low-temperature heat recovery has demonstrated remarkable economic advantages.

Advantages: The primary advantage lies in its simple structure, which ensures the minimum inner diameter of the shell while maintaining an effective heat transfer surface. However, a significant disadvantage arises when there is a considerable temperature difference between the shell and pipe medium. This can lead to thermal stress, potentially causing pipe and tube plate failures, leaks, or instability. Furthermore, the design complicates maintenance and cleaning processes for the shell. Despite these limitations, it remains widely used in general applications, although it is constrained by temperature differentials.

NOBLEST U-Shaped Type Tube Heater This design is a type of shell and tube heat exchanger commonly used in petrochemical applications. It comprises essential 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 the same tube plate, providing a compact and efficient heat transfer solution.

Main Features:
Δ The tube bundle can freely expand and contract without generating thermal stress due to temperature differences between the tube and shell.
Δ Excellent thermal compensation performance.
Δ The shell side features a double-tube flow, offering a longer flow path and higher flow velocity, thereby enhancing heat transfer performance.
Δ High pressure resistance.
Δ The tube bundle can be removed from the shell for easy maintenance and cleaning, with a simple and cost-effective structure.

Applications:
Ideal for situations with large temperature differences between the tube and shell walls, or where the shell-side medium tends to scale while the tube-side medium remains clean. It is also suitable for high temperature, high pressure, and highly corrosive conditions.

NOBLEST Floating Head Heat Exchanger In this design, only one end of the tube plate is fixed to the shell, while the other end can move freely relative to the shell, known as the floating head. The floating head comprises a floating tube plate, hook ring, and floating head end cover. This detachable design allows the tube bundle to be withdrawn from the shell, ensuring no thermal stress due to unconstrained thermal deformation of the tube bundle and shell.

Features:
The key advantages include easy cleaning between tubes, absence of thermal stress, and adaptability to significant wall temperature differences between the shell and tube bundle. However, the structure is complex, costlier than fixed tube-plate heat exchangers, bulkier, and with higher material consumption. The small cover of the floating head cannot be inspected during operation, and higher sealing requirements are needed during manufacturing. It is best suited for applications with large shell-tube wall temperature differences or where the shell medium is prone to scaling.

Applications:
Δ The design allows the tube bundle to be easily drawn out, ensuring effortless cleaning of both the tube and shell surfaces.
Δ Capable of handling any temperature difference between mediums without limitations, offering versatile application possibilities.
Δ Engineered to operate under extreme conditions, handling temperatures up to 450 degrees Celsius and pressures up to 6.4 MPa seamlessly.
Δ Perfectly suited for environments where severe scaling is a concern, ensuring reliable performance and longevity.
Δ Ideal for applications involving materials that are prone to easy corrosion, offering robust and durable solutions.