For the plate heat exchanger application has been very wide, whether civil or industrial are less of its figure, that as one of the main components of the plate heat exchanger plate (metal plate: for the pressing of corrugated, sealing grooves and angular holes in the metal sheet, is an important heat transfer element. Corrugation can not only strengthen the heat transfer, but also increase the plate and rigidity, thus improving the plate heat exchanger pressure capacity, and because the liquid is prompted by turbulence, so it can reduce the formation of sediment or dirt, play a certain "self-cleaning" effect.) For heat transfer performance has a lot of influence, plate heat exchanger plate quality how to judge is good or bad, is a particularly important skills, that today we tell you how to judge the quality of plate heat exchanger plate good or bad.
1. Plate raw materials
For plate heat exchanger plate quality is mainly to see whether the raw material is high-quality plate, plate for manufacturers of raw materials procurement channels are basically the same, the selected material is a sufficient thickness of stainless steel, although collectively referred to as stainless steel, but is divided into different standard grades of stainless steel, because of the content of trace elements contained in the internal material is different, the stability as well as corrosiveness will be a great deal of difference, therefore, for plate Heat exchanger plate quality in the material is more important point. 2.
2. Plate pressing mould
Plate heat exchanger plate quality and mould is relevant, the precision of the mould and hardness determines the plate capacity and quality, different ways to cause the precision of the mould density will have a big difference, if there is no reasonable maintenance, there will be craftsmanship is not fine, the gap becomes large, the pressed plate does not meet the standard. For experienced manufacturers, different materials, thicknesses and models require different pressures, and only in this way can we produce materials that really meet the standards.
For plate heat exchanger plate quality should be economic and reasonable to select, to have good cold stamping performance, but also in the same medium, with high corrosion resistance, which is very important, in general, the requirement of the plate corrosion rate should be less than and equal to 0.05mm/year, for shell and tube plate heat exchanger should be less than and equal to 0.1225mm/year.
