| 摘要 |
The invention relates to a method and an apparatus for cleaning industrial pipe systems, preferably pipe systems used in food industry, such as meat, fish and vegetable industry, where detergent and liquid are fed into the pipe to be cleaned, a pressure difference is created in the pipe and the detergent and liquid are brought to flow in the pipe by means of a pressure difference for cleaning the pipe. In order to clean the pipe economically the method is characterized in that detergent and liquid are fed in batches into a small portion of the pipe to be cleaned, whereby in addition to the detergent and liquid also granules are fed into said portion of the pipe to be cleaned, whereafter a wash batch comprising detergent, liquid and granules is brought to flow along the pipe to be cleaned by means of said pressure difference for mechanically treating the walls of the pipe to be cleaned with a wash batch comprising detergent, liquid and granules. As an essential part, the apparatus of the invention comprises a washing center (9) that functions as a source of the batches cleaning the pipe (4).
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