What is the impact of fouling on plate heat exchanger systems?
Release Time:
2020-10-29 12:33
Source:
Plate heat exchanger Heat exchange is achieved through heat conduction, and the heat exchange can be between two or more media. For example, for heat transfer between water and water, a plate heat exchanger can be chosen. Plate heat exchangers are heat exchange equipment with high heat transfer efficiency, small footprint, and convenient cleaning and maintenance. In the heat transfer process between water and water, the heat transfer area and process combination can be designed by setting the temperature.
Plate heat exchanger The unit consists of a heat exchanger, a circulating water loop, a pressure stabilizing pump, a temperature control device, a filter, valves, instruments, and a control cabinet. Its function is equivalent to a heat exchange station, which can supply heat to multiple loops through a water collector and distributor. Plate heat exchanger units can be used for thermal engineering in heat exchange stations, but Plate heat exchanger Fouling will occur after long-term use. What is the impact of fouling on the heat exchanger system? Let us introduce it to you.
1. Fouling is a poor conductor of heat. Dust accumulation on the equipment surface affects the heat transfer effect and reduces production efficiency. From a design perspective, the overall heat transfer coefficient K of the plate heat exchanger decreases as the fouling thermal resistance increases. The higher the K value under clean conditions, the greater the influence of fouling thermal resistance. Therefore, the heat transfer area should be increased to compensate for the effect of fouling thermal resistance.
2. Fouling accumulates on the surface of the equipment, aggravating local corrosion and easily causing pitting and perforation.
3. The deposition of fouling in the heat exchange tubes of the plate heat exchanger reduces the flow cross-sectional area of the fluid in the tube, increases the flow resistance, increases the power consumption of the pump or fan, increases the power consumption of the automatic cleaning equipment, and increases the total energy consumption of the equipment operation.
4. Fouling caused Plate heat exchanger Shutdown cleaning shortens the continuous operation cycle of the equipment, affects production efficiency, and even reduces product quality.
The above is about the impact of fouling on the plate heat exchanger system. Hope these can help you.
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