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Plate heat exchange unit: What are the advantages of plate heat exchange unit compared with shell-and-tube heat exchanger?
Release time:
2021-04-29
Plate heat exchanger unit is a kind of heat exchanger. It is a new type of heat exchanger that stacks a series of corrugated metal plates. Thin rectangular channels are formed between the plates to exchange heat through the plates. So, what are the advantages of plate heat exchanger unit compared with shell and tube heat exchanger? Let's make a brief introduction today.
Plate heat exchanger unit is a kind of heat exchanger. It is a new type of heat exchanger that stacks a series of corrugated metal plates. Thin rectangular channels are formed between the plates to exchange heat through the plates. So, what are the advantages of plate heat exchanger unit compared with shell and tube heat exchanger? Let's make a brief introduction today.
The plate heat exchanger unit combines the heat exchanger with the fixed plate and the movable plate through the sealing gasket of the plate heat exchanger, as well as the guide tube and bolts. The hot and cold media enter the heat exchanger through four interfaces for heat exchange. The working principle of the plate heat exchange unit is to exchange heat through the sheet medium. The medium passes through the channel between the two sheet medium, and the middle sheet medium separates the hot and cold medium to realize the wall heat exchange.
Compared with shell-and-tube heat exchanger, plate heat exchanger unit has many advantages, so it is selected by more people. What are its advantages? High heat transfer coefficient: It is a flow channel formed by inverting different corrugated plates. When the medium passes through the flow channel, the heat transfer coefficient will be 3~5 times higher than the shell-and-tube type. Large logarithmic average temperature difference: the average temperature difference coefficient of shell-and-tube heat exchanger is small, and the plate heat exchanger is countercurrent, with small temperature difference at the end, and the heat transfer to water can reach 1 ℃ temperature difference. Compact structure: the occupied space is much smaller than that of shell-and-tube heat exchanger. It is easy to change the heat exchange area or flow channel combination. As long as several plates are added or reduced, the heat exchange area can be changed accordingly.
The above describes the advantages of plate heat exchange unit compared with shell and tube heat exchanger. In comparison, the advantages of plate heat exchange unit are more obvious under the heat exchange conditions that are suitable for all aspects.
