Language
Country/Area
No result found
The secret of high pressure and high temperature: Why can pillow plates operate under extreme conditions?
In industrial processes, with the increasing demand for high-efficiency heat exchangers, pillow plate heat exchangers, as an emerging technology, have gradually received widespread attention. The pillow-shaped plate is made by welding two thin metal sheets. When these sheets are inflated, they form a unique wavy surface, allowing it to operate effectively in a variety of extreme conditions.
Manufacturing Process
The pillow-shaped panels are manufactured using an inflatable process, in which two thin metal sheets are spot welded over the entire surface using laser or resistance welding technology, and the edges are sealed by seam welding. Eventually, the internal gaps are filled with high-pressure liquid, causing plastic deformation of the metal plate, thus forming its unique wavy shape.
This inflation process gives the pillow board excellent structural stability and flexibility, allowing it to operate at pressures in excess of 100 MPa and temperatures up to 800°C.
Types of pillow boards
Pincushion boards are mainly divided into two types: single convex surface and double convex surface. Single convex surfaces usually form the double wall of a jacketed vessel, while double convex surfaces can be assembled into a series of heat exchangers. These different designs allow pillow boards to be flexibly used in many different industrial fields.
Application scope
The application range of pillow plates is quite wide, including but not limited to liquid-liquid and gas-liquid heat transfer needs, especially in the papermaking, pharmaceutical and food processing industries.
Many electroplated coolers use pillow plates that are directly immersed in the liquid, significantly improving energy efficiency and operational stability.
Research and knowledge transfer
Despite the many advantages of pillow panel technology, understanding of its thermal performance and design experience are still relatively limited. Recently, research on geometric analysis, fluid flow and heat conduction continues to improve its performance in actual operations.
Currently, researchers are developing commercial software tools to overcome current knowledge bottlenecks in pincushion plate design.
Fluid flow and heat transfer analysis
The internal channels of the pillow plate promote fluid mixing due to their wavy shape, thereby increasing the heat transfer rate. However, this may also lead to increased pressure losses. Detailed analysis of fluid flow and heat transfer is therefore key to designing efficient heat exchangers.
Conclusion
As industrial demand continues to grow, pillow plates, as an emerging heat exchange technology, show great potential for development. The continuous research and innovation of scientific researchers will further promote its application in various industries. However, it remains to be seen whether this technology can achieve mass production and popularization in a wider range of industrial applications in the future?
