Why does the plate heat exchanger have internal leakage

As an efficient heat transfer equipment, plate heat exchangers are widely used in working conditions such as water, oil, Why does the plate heat exchanger have internal leakagewater, and soda. It plays a decisive role in equipment and process. Since the plate heat exchanger is based on the principle of the partition wall heat exchange, the passage between the plate and the plate is very shallow. If the medium is dirty or corrosive, it will cause leakage to the board. So what should I do if the plate heat exchanger has internal leakage?

(1) The heat exchanger plate is perforated. Generally, more than 80% of internal leakage should consider whether the plate is broken down. It is mainly used in the common water, oil, water, and soda conditions. When the equipment is turned on, the pressure must increase instantly. If the medium on one side contains large particles or small stones, the plate may be broken down. .

(2) Corrosion or extrusion of heat exchanger gaskets. In the case of internal leakage, consider whether the heat exchanger gasket is corroded or extruded. The general judgment is whether the plate is corroded or not, you can look at the outside of the plate changer. If the gasket is corroded, there will usually be leakage holes, and internal leakage and leakage will occur.

(3) The gap between the plates is blocked. Sometimes the internal leakage is considered to be blocked. When the water is extremely dirty, the sediment in the water will adhere to the surface of the plate for a long time, and the sludge will block the gasket. When the resistance increases, water will seep out from other places, thus causing internal leakage.