1. System configuration reasons. Plate heat exchanger heat transfer effect, only to follow the laws of energy guide constant, namely hot side let heat is equal to the cold side absorb heat, in many cases, the hot side from the cold side of the heating system of heat do not have enough cooling water, such as not enough water quantity, water temperature, leading to hot side temperature come down, if this is the reason, the heat exchanger is again big also useless.
2, plate heat exchanger itself. Many users in the purchase of heat exchanger only provide heat exchange area, no heat exchange, medium flow, import and export temperature and other specific data, resulting in the purchase of plate heat exchanger although the model area is correct, but the process combination is not reasonable, it can not achieve the desired effect, even on this basis to increase the area is useless. Therefore, in the selection of plate heat exchanger, we must find professional manufacturers for working condition verification.
