How PCHE works?
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- Issue Time
- Nov 4,2020
How PCHE works?
Working principle:
Printed circuit heat exchanger (PCHE) is a kind of heat exchanger in which metal plates are processed by electrochemical etching process into heat exchange plates with a certain structure, and then stacked together by diffusion welding. A tiny channel is formed between the various plates, and the working fluid flows through the tiny channel formed between the two plates. There is a partition in the middle to separate the fluid and exchange heat through the plates.
Advantages:
(1) Compared with shell-and-tube heat exchangers with the same heat load, the volume and weight can be reduced by up to 85%;
(2) The pressure can reach 600 bar;
(3) Unit thermal efficiency exceeds 98%;
(4) The range of extreme temperature capability ranges from low temperature to 900 ℃;
(5) It can effectively handle fluids or large temperature difference conditions caused by rapid temperature changes;
(6) In a single device, multiple media can be allowed to implement the heat exchange process;
(7) Able to achieve a small temperature difference as low as 2 ℃;
(8) A series of anti-corrosion material manufacturing equipment can be selected;
(9) No gasket (no leakage), no brazing, no tube sheet, with higher equipment integrity.