Stainless Seamless Steel Heat Exchanger 304 Pipes Transfer Heat Efficiently

A stainless steel heat exchanger tube is a high-performance heat exchanger material. Due to its corrosion resistance, high-temperature strength, and reliable mechanical properties, it is used in various chemical, pharmaceutical, food, aerospace, energy, and other fields. Heat exchange equipment is also used in more and more fields.

The working principle of stainless steel heat exchanger tubes is to use the heat conduction of the fluid in the pipe to transfer heat between the heat source and the cold source. Specifically, when the temperature of the fluid in the tube is high, heat is transferred to the cold source outside the tube through the tube wall, causing the temperature of the cold source outside the tube to increase; conversely, when the temperature of the fluid in the tube is low, heat is transferred from the heat source outside the tube to The pipe wall reduces the temperature of the heat source outside the pipe. This heat transfer process is mainly achieved through two methods: conduction and convection.

The heat exchange tube is one of the components of the heat exchanger. It is placed inside the cylinder and is used to exchange heat between two media. Has high thermal conductivity and good isothermal properties. It is a device that can quickly transfer heat energy from one point to another with almost no heat loss, so it is called a heat transfer superconductor, and its thermal conductivity is thousands of times that of copper.

The standard tube lengths of heat exchange tubes are 1.5, 2.0, 3.0, 4.5, 6.0, 9.0m, etc. The use of small pipe diameters can increase the heat transfer area per unit volume, compact the structure, reduce metal consumption, and improve the heat transfer coefficient. It is estimated that changing the heat exchange tube of the same diameter heat exchanger from Φ25mm to Φ19mm can increase the heat transfer area by about 40% and save more than 20% of metal. However, small-diameter pipes have large fluid resistance, are inconvenient to clean, and are prone to scaling and blockage.

Stainless steel heat exchange tubes have the following obvious characteristics:

1. Good corrosion resistance: Stainless steel material itself has good corrosion resistance, especially in harsh environments such as high temperature, high pressure, strong acid, and alkali, the corrosion resistance of stainless steel heat exchange tubes is fully reflected.

2. High heat dissipation efficiency: Because the stainless steel heat exchange tube has a thin wall and good thermal conductivity, the heat dissipation efficiency is high.

3. High-temperature strength: Stainless steel materials have high thermal stability and high-temperature strength, and can operate in high-temperature environments for a long time without deformation or melting.

4. Reliable mechanical properties: Stainless steel materials have reliable mechanical properties such as hardness, ductility, and strength, and can meet the use requirements under various complex working conditions.

5. Easy to process and maintain: Stainless steel heat exchange tubes have high surface smoothness, are easy to clean and maintain, and can extend their service life.

Commonly used materials for heat exchange tubes include carbon steel, low alloy steel, stainless steel, copper, copper-nickel alloy, aluminum alloy, titanium, etc. In addition, there are some non-metallic materials, such as graphite, ceramics, polytetrafluoroethylene, etc. Appropriate materials should be selected during design based on working pressure, temperature, and medium corrosivity.