The plate heat exchanger is a high-efficiency heat exchanger assembled from a series of metal plates with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat exchange is carried out through the plates. The plate heat exchanger is composed of a certain number of plates, and the plate processing technology is one-time stamping. There are many factors that affect the processing accuracy of the plate heat exchanger. The main factors that cause processing errors in plate heat exchangers can be specifically divided into three aspects.
(1) The error caused by the force effect of the process system refers to the error caused by the elastic and plastic deformation of the process system and the clamping error of the workpiece. Errors caused by centrifugal force and transmission force and errors caused by residual stress.
(2) The error caused by the thermal deformation of the process system refers to the error caused by the thermal deformation of the plate heat exchanger and the workpiece. The principle error and measurement error of the machining method are also very important factors that affect the machining accuracy of the parts.
(3) The geometric error of the process system refers to the manufacturing error and wear of the plate heat exchanger, the dimensional chain error, the static and dynamic adjustment error of the machine tool transmission, and the installation error of the plate heat exchanger.