Smoke whitening is an important environmental protection process, especially in combustion processes and industrial emissions. The use of BXB plate heat exchanger for whitening mainly reduces the relative humidity and temperature of the flue gas through heat exchange, thereby reducing or eliminating the phenomenon of "white smoke". "White smoke" is mainly formed by the condensation of water vapor in the flue gas into small water droplets at low temperatures. The specific process is as follows:

1. High temperature flue gas: The flue gas generated by industrial emissions or combustion processes usually has a high temperature and contains a large amount of water vapor.

2. Condensation upon exposure to cold: When these high-temperature flue gases are emitted into a low-temperature environment, the water vapor rapidly cools and condenses into small water droplets, forming white smoke called "white smoke".

Principle of BXB Plate Heat Exchanger Whitening

The BXB plate heat exchanger reduces the flue gas temperature and water vapor content through a heat exchange process. The specific steps are as follows:

1. Heat exchange:

-The flue gas enters the BXB plate heat exchanger and undergoes heat exchange with the cooling medium (usually cold water or cold air) inside the heat exchanger.

-The design of the heat exchanger allows the heat of the flue gas to be transferred to the cooling medium during the process of flowing through multiple layers of plates, and the temperature of the flue gas gradually decreases.

2. Cooling and dehumidification:

-As the temperature of the flue gas decreases, some of the water vapor in the flue gas condenses into liquid water.

-These condensed water are discharged through a heat exchanger, thereby reducing the water vapor content in the flue gas.

3. Increase the emission temperature:

-After heat exchange, the temperature of the flue gas drops below the dew point, causing most of the water vapor to condense into water droplets and be removed.

-The remaining flue gas has a lower temperature and will not quickly cool above the dew point when emitted into the atmosphere, thus avoiding the formation of "white smoke".

Specific effects

-Reduce humidity: By removing some water vapor through a heat exchanger, the relative humidity of the flue gas is reduced.

-Reduce temperature: Properly reduce the temperature of the flue gas to prevent the remaining water vapor from condensing into water droplets during discharge.

-Reduce white smoke: Due to the dual reduction of smoke humidity and temperature, the smoke emitted into the atmosphere no longer significantly forms "white smoke".

summary

The key to using BXB plate heat exchanger for flue gas whitening is to reduce or eliminate the phenomenon of white smoke by effectively exchanging heat, lowering the flue gas temperature and water vapor content. This not only improves the visual effect of the environment, but also reduces other potential issues caused by condensation water, such as corrosion and pollution.