There are many types of heat exchangers, but the principles and methods of heat exchange between cold and hot fluids can be basically divided into three categories: partition type, hybrid type and regenerative type. In the three types of heat exchangers, the partition wall heat exchanger is applied more often. Plate heat exchangers are also one of the largest heat exchangers. So, what are the common faults in plate heat exchangers?
1 The external leakage mainly manifests as leakage (small amount, discontinuous water droplets) and leakage (large amount, continuous water droplets). The main part of the external leakage appears as the seal between the plate and the plate, the two sealing leaking groove parts of the plate and the inner side of the end plate and the pressing plate.
The main feature of the two-string liquid is that the medium on the higher pressure side is connected to the medium on the lower pressure side, and pressure and temperature anomalies occur in the system. If the media is corrosive, it can also cause corrosion in other equipment in the pipeline. The stringing usually occurs at the flow guiding area or at the two sealing areas.
3 pressure drop large medium inlet and outlet pressure drop exceeds the design requirements, even higher than the design value many times, seriously affecting the system's flow and temperature requirements. In the heating system, if the pressure drop on the hot side is too large, the primary side flow rate will be seriously insufficient, that is, the heat source is insufficient, and the secondary side outlet temperature cannot meet the requirements.
4 The heating temperature can not meet the requirements. The main feature is that the outlet temperature is too low to meet the design requirements.
1 The external leakage mainly manifests as leakage (small amount, discontinuous water droplets) and leakage (large amount, continuous water droplets). The main part of the external leakage appears as the seal between the plate and the plate, the two sealing leaking groove parts of the plate and the inner side of the end plate and the pressing plate.
The main feature of the two-string liquid is that the medium on the higher pressure side is connected to the medium on the lower pressure side, and pressure and temperature anomalies occur in the system. If the media is corrosive, it can also cause corrosion in other equipment in the pipeline. The stringing usually occurs at the flow guiding area or at the two sealing areas.
3 pressure drop large medium inlet and outlet pressure drop exceeds the design requirements, even higher than the design value many times, seriously affecting the system's flow and temperature requirements. In the heating system, if the pressure drop on the hot side is too large, the primary side flow rate will be seriously insufficient, that is, the heat source is insufficient, and the secondary side outlet temperature cannot meet the requirements.
4 The heating temperature can not meet the requirements. The main feature is that the outlet temperature is too low to meet the design requirements.
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