Changes in plate heat exchanger plates technology from the point of view of the design of the infusion zone and structure
The design of the inflow zone and the positioning structure of the plate heat exchanger plates are explained in two parts, one from the point of view of the fluid medium through the plate surface and other one from the point of view of the safety and stability of the plate structure. The continuous innovation of heat transfer technology is reflected in the design and construction of the plate.
Design of the inflow zone of the plate
The infusion zone is located at both ends of the plate, immediately adjacent to the corner holes, and the main purpose of the infusion zone design is to cause the fluid to be evenly distributed along the entire width of the plate, so that all the area of the plate is fully utilized and the pressure drop may be reduced, thereby improving heat transfer performance. This is particularly important for unilateral flow, where the fluid flows in and out along the longitudinal side of the plate at the same angle hole, also known as the ipsilateral flow plate.
Currently, there are two types of common infusion zone structures, one is the trench infusion zone and the other is the mesh format infusion zone. The mesh format is a newly developed structure that is now in common use with a more uniform distribution of the dielectric fluid and a smaller pressure drop compared to the trench format. It should be noted that asymmetrical plate heat exchangers should also have asymmetrical structures for the plate infusion zone.
The design of the inflow zone of the plate produced by Qingdao Ruipute Heat exchanger Equipment Manufacturing Co.
Positioning structure of the plate
During the assembly or operation of the plate heat exchanger, due to the clamping of the clamping plate, or high temperature and high pressure, pressure fluctuations, especially when the number of plates, clamping force is high, may produce plates offset from each other, local deformation, resulting in leakage; in serious cases, the sealing strip can be extruded from the strip groove, or even damage the strip and plate, or shorten its service life, therefore, must take reliable, stable, safe positioning measures.
At present, the corner hole positioning is commonly used in major factories - each plate is pressed in at least two diagonal edge zones, each with a curved protruding edge; when the adjacent plate is pressed, one protruding edge is tightened with the other, even under harsh conditions, there can be no movement in any direction, simple processing, easy assembly and disassembly.
The world famous Alfa Laval company uses five points metal positioning - the upper guide bar hanging plate plate has three points to prevent up and down movement; the lower guide bar has two points to prevent left and right movement, suitable for plate heat exchanger with corner hole diameter of 140mm or more, processing accuracy and assembly difficulty requirements are high.
APV company takes the internal locking strip positioning - along the strip's external measurement, I must be spaced to distribute some raised bars and grooves, with the use of special strips, can ensure that the plate and plate have good support and neutral, suitable for large size plate.
The design of the plate heat exchanger plate infusion zone and the structure of the plate positioning fully reflect the continuous development of heat exchanger equipment.
Related information
- After reading this article for industrial plate heat exchanger price no longer worry
- Faced with complex working conditions, precise selection is the essence of plate heat exchangers
- What is the production and processing technology of Qingdao Ruipute plate heat exchanger plate?
- Plate sterilizer supporting plate heat exchanger and the difference between ordinary heat exchanger, do you understand?
- Do you know that under the condition of all refrigerants, the focus of imported semi welded plate heat exchanger should be different
- How can you use the Alfa Laval plate heat exchanger for less money in the brewing process
Relevant article
- Heat station supporting plate heat exchanger installation is a technical work, these points should be noted
- Sulfuric acid and other corrosive media for industrial plate heat exchanger requirements are what
- Simple and effective chemical cleaning method of coal chemical plate heat exchanger, can effectively improve efficiency
- A high-quality petrochemical plate heat exchanger in the production of what to consider
- These causes of chemical plate heat exchanger gasket aging you may not know
- Chemical plant plate heat exchanger, sulfuric acid cooling needs attention
- High-end plate heat exchanger customization, specifically for your special working conditions
- The working principle of gasket type industrial plate heat exchanger and the scenarios of its use are worth knowing in depth
- Still worrying about the wholesale price of industrial plate heat exchangers? An article to make you no longer tangled
- The original lubricant in the chemical plate heat exchanger plays so many roles!
Latest information
- Heat station supporting plate heat exchanger installation is a technical work, these points should be noted
- Sulfuric acid and other corrosive media for industrial plate heat exchanger requirements are what
- Simple and effective chemical cleaning method of coal chemical plate heat exchanger, can effectively improve efficiency
- A high-quality petrochemical plate heat exchanger in the production of what to consider
- These causes of chemical plate heat exchanger gasket aging you may not know
- Chemical plant plate heat exchanger, sulfuric acid cooling needs attention
- High-end plate heat exchanger customization, specifically for your special working conditions
- The working principle of gasket type industrial plate heat exchanger and the scenarios of its use are worth knowing in depth
- Still worrying about the wholesale price of industrial plate heat exchangers? An article to make you no longer tangled
- The original lubricant in the chemical plate heat exchanger plays so many roles!