Shell and tube heat exchangers are one of the most widely used heat exchange devices in the industrial field. They have reliable structures and strong adaptability, and are suitable for high-temperature, high-pressure and high-flow working conditions. Its core design is composed of components such as the shell, tube bundle, tube sheet and baffle plate
It is composed of components such as the shell, tube bundle, tube sheet, baffle plate, and head. Each component can be independently designed or replaced (for example, changing the material of the tube bundle to adapt to different media), facilitating maintenance and customization.
Through the use of process separation baffles, multiple process combinations for the tube side (tube side) and the shell side (shell side) can be achieved (such as types 1-2, 2-4), flexibly adjusting the fluid path and flow rate, and optimizing the heat transfer efficiency.
The heat transfer area per unit volume is large, and the capacity can be expanded by increasing the length or quantity of the tube bundle, making it suitable for both small-scale and large-scale industrial applications.
The ratio of pressure drop to heat transfer can be optimized by adjusting the pipe diameter, arrangement method (triangle/square), and baffle plate spacing (for example, the pressure drop in the shell side is usually 10-50 kPa).
The shell and tube heat exchanger is one of the most widely used heat exchange devices in industry. Its structural components mainly include the following core parts:
Generally cylindrical in shape, made of carbon steel, stainless steel or alloy steel. The two ends are connected to the tube sheet through flanges or welding. It may also include expansion joints, supports, etc.
The core component for heat transfer, where the fluid flows inside the tubes (tube passageway). Common shapes include straight tubes, U-shaped tubes (U-tubes), or spiral tubes.
Fixed heat exchange tubes, separating the shell side and the tube side. Usually made of thick metal plates, the tube holes are connected to the heat exchange tubes through expansion fitting or welding.
They guide the shell-side fluid to flow laterally across the tube bundle, enhancing turbulence and improving heat transfer efficiency. They are generally classified as arched, disc-ring, or orifice types, etc.
Fix the position of the baffles and keep the tube bundle stable.
Used to distribute or collect the fluid in the tube pass, located at both ends of the heat exchanger. It is divided into fixed tube sheet type and detachable type. 。
Inlet/Outlet of Tube Pass: Located in the tube box, the fluid enters the heat exchange tubes through the tube sheet. Inlet/Outlet of Shell Pass: Located on the side or top of the shell, the fluid flows around the tube bundle within the shell.
The function of the Impingement Plate is to prevent the high-speed fluid from directly impacting the tube bundle, which could cause corrosion or vibration.
The Sealing Strips can reduce the leakage of the shell-side fluid through the gap between the tube bundle and the shell (the "short-circuit" phenomenon).
The exhaust valve and the drain valve are used to remove the gas or residual liquid from the equipment.
Shell and tube heat exchangers are one of the most widely used heat exchange devices in the industrial field. They have reliable structures and strong adaptability, and are suitable for high-temperature, high-pressure and high-flow working conditions. Its core design is composed of components such as the shell, tube bundle, tube sheet and baffle plate
Shell and tube heat exchangers are one of the most widely used heat exchange devices in the industrial field. They have reliable structures and strong adaptability, and are suitable for high-temperature, high-pressure and high-flow working conditions. Its core design is composed of components such as the shell, tube bundle, tube sheet and baffle plate
Shell and tube heat exchangers are one of the most widely used heat exchange devices in the industrial field. They have reliable structures and strong adaptability, and are suitable for high-temperature, high-pressure and high-flow working conditions. Its core design is composed of components such as the shell, tube bundle, tube sheet and baffle plate
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