The Working Efficiency Of Plate Heat Exchangers Can Directly Reflect The Heat Transfer Efficiency

An important factor in choosing a plate heat exchanger is to consider the heat transfer efficiency of the equipment. It is important to know that the working efficiency of the equipment can directly reflect the heat transfer efficiency. And after understanding the heat transfer efficiency of the equipment, using it will achieve twice the result with half the effort.

This reduces the temperature of the positive flow air entering the main equipment, increases the temperature, and tends to be the same, avoiding the temperature crossing at the hot end of the main equipment, making good use of the heat exchange area, and thereby reducing the temperature difference at the hot end. However, the inlet temperature of the pressurized air should not be lower than the inlet temperature of the positive flow air, otherwise temperature crossover will occur, causing some heat transfer areas to lose their heat transfer effect. After adjustment, the temperature difference at the hot end is reduced to within 3 ℃.

1. Plate heat exchangers have high heat transfer efficiency and a large heat transfer area per unit volume.

2. If the scope is a 400000 ton coking project, the crude benzene condenser in the crude benzene section has a large heat exchange area and a reduced volume. Due to its arrangement on the framework, the adoption greatly reduces the manipulation volume and inspection space.

3. The heat exchange area can be greatly reduced, resulting in a significant reduction in the volume of equipment with abnormal heat exchange effects. At the same time, the operating space is also correspondingly reduced, which increases the air volume and reduces the cost of civil construction. Since it is composed of many plates, it does not require a lot of inspection space.

On the one hand, the reflux gas is heated by the higher temperature positive flow air, and on the other hand, it is cooled by the lower temperature positive flow boost air. The heat exchange area is not well utilized, resulting in an increase in the temperature difference at the hot end and irreversible losses. At this point, the larger the proportion of charge air, the greater the temperature difference between charge air and positive flow air, and the greater the impact on the temperature difference at the hot end of the motherboard heat exchanger.