Comprehensive analysis of the factors of low heat transfer efficiency of plate heat exchanger

The low heat transfer efficiency of plate heat exchanger is a lot of factors, because the plate type has high heat transfer efficiency, so we often choose in a variety of working conditions. As the use of time becomes longer, the heat transfer efficiency may be affected, and affect the normal operation, so it is important to figure out the reasons for the low efficiency of the equipment.
The reasons for low heat transfer efficiency of plate heat exchanger can be divided into the following five areas:

1, materials. The choice of materials will affect the heat transfer area of the heat exchanger. Many people tend to choose a small heat transfer coefficient in the choice of heat transfer equipment, and choose the right material heat transfer coefficient is large, small thermal resistance.

2, the flow rate. Equipment in operation to carry out the average flow speed of the medium will also affect the heat transfer efficiency, one side of the flow rate is low will lead to wall fluid through the stagnant layer is too thick.
3, operation and maintenance. Heat exchanger scaling, if not cleaned in a timely manner, will also affect the heat transfer effect, thus reducing the heat transfer efficiency.
4, temperature difference. The temperature difference between the hot side of the medium and the cold side of the medium is small, will also affect the heat transfer efficiency.
5?Structure. In the structure may appear cold, hot side of the media can not be fully contact with the heat transfer area, resulting in a large local temperature difference between the heat exchanger, the heat transfer area can not be fully utilized, and reduce the heat transfer efficiency of the equipment.
Today's reasons for the low heat transfer efficiency of the plate heat exchanger is shared here, if you want to consult friends can go to the Qingdao Ripert Heat Transfer Equipment Manufacturing Co.