What's the problem of plate heat exchanger?

- Jun 06, 2018-

There are many common problems of plate heat exchanger as following:


The main manifestations are leakage (small amount, discontinuous water droplets) and leakage (large amount, continuous water droplets).

The main parts of the leakage are the seal between the plate and the plate, the two seal leakage slots of the plate and the inner side of the end plate and the compression plate

Liquid leakage

The main characteristic is that the medium on the higher side of the pressure is strung into the medium on the lower side of the pressure, and there will be abnormal pressure and temperature in the system

If the medium is corrosive, it may also cause corrosion of the plate heat exchanger sealing gasket. A cascade of fluid usually occurs in a pilot or two seal area

High pressure drop

The pressure drop in and out of the medium exceeds the design requirement and is many times higher than the design value

In the heating system, if the hot side pressure drops too much, the primary side flow will be seriously insufficient, that is, the heat source is not enough, so the secondary side discharge temperature cannot meet the requirements

The heating temperature cannot meet the requirement

The main characteristic is that the outlet temperature is too low to meet the design requirements