How should finned tubes be maintained and serviced?

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Regularly inspect and clean each finned tube to determine whether it is in good condition, checking for deposits, coking, scale, or other fouling, and carry out cleaning promptly. At the same time, verify that the bonding between the finned tubes and the rubber gaskets is tight and that the gaskets themselves are intact, to prevent leaks caused by delamination or damage to the gaskets. 2. The clamping nuts of plate heat exchangers and the upper and lower guide rods should be regularly lubricated with grease to ensure smooth operation. 3. Each instrument and control device should be assigned to a dedicated operator, who must strictly follow the operating procedures for both operation and maintenance. 4. Whenever the finned tubes are re‑clamped, carefully note the position indicated by the scale at the previous tightening; do not…

2020-07-05

1. Regularly inspect the finned tubes to ensure they are clean and free of deposits, coking, scale, or water‑induced rust, and promptly carry out cleaning as needed. At the same time, verify that the bonding between the finned tubes and the rubber gaskets is secure and that the gaskets themselves are intact, to prevent leaks caused by gasket delamination or damage.

2. The clamping nuts of the plate heat exchanger and the upper and lower guide rods should be regularly lubricated with grease to ensure smooth operation.

3. Each instrument and control device shall be assigned to a dedicated operator, who must strictly adhere to the operating procedures during operation and maintenance.

4. Each time the finned tube is re‑compressed, carefully note the compression setting from the previous operation and ensure that the rubber gasket is not over‑compressed, as this will shorten its service life.

5. When replacing the rubber gaskets on finned tubes, the entire section must be replaced to prevent uneven gaps between the fins, which could compromise heat transfer performance.

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