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Check the heat exchanger plate for perforation, usually with a five times magnifying glass, and sometimes with a light or paraffin penetration method, such as piece-by-piece inspection.
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Manual cleaning method: heat exchanger plate scale thickness is very thin and insoluble in water, it can be disassembled, piece by piece with water under pressure ({{0}}.1 ~ 0.2MPa) or with water with a low-pressure steam jet scrubbing treatment for water is difficult to scrub the precipitate, it can be used to scrub the soft fibre brushes, bristles brush to scrub.

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