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Method and operation steps for manufacturing a plate heat exchanger
Jun 05, 2019

When the plate heat exchanger is fabricated, the plate is first stamped, and at least one hollow truncated cone is provided in each plate; by continuously inserting the plates of one plate heat exchanger into the corresponding openings of the adjacent plates The plate assembly is formed in which a predetermined gap is maintained between adjacent surfaces of the plate to form a passage through the heat carrier.


Plate heat exchangers are available in two ways: manual and on-site. If conditions are met, the in-situ cleaning system should be used whenever possible, as the in-situ cleaning system can pump water into the unit without the need to disassemble the heat exchanger. If the in-situ cleaning system is impractical for your plant, the unit can be cleaned by hand cleaning.


When cleaning the plate heat exchanger, drain the liquid from the inlet and outlet of the two sides. If the discharge is not completed, the process liquid can be forcibly flushed out with water; rinse with warm water of about 43 °C from both sides of the heat exchanger until the water flowing out becomes clear and does not include the process fluid; the rinsed water is discharged from the plate heat exchanger , connect the pump to the local cleaning.


To be cleaned, the in-situ cleaning solution is allowed to flow from the bottom to the top of the sheet, allowing the surface of the sheet to be wetted with a cleaning solution. When cleaning the multi-flow heat exchanger, the cleaning liquid should be reversely flowed for at least 12 cleaning time to make the surface of the multi-flow plate wet. Flush with the flow rate of the in-situ cleaning solution, or with a local cleaning nozzle diameter to allow flow rate

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