| 摘要 |
Method and apparatus for internal cleaning of substantially vertical heat exchanger tubes (2) of a tubular heat exchanger (1). Theapparatus comprises a washing hose (3) connected to a high-pressure washing fluid source (7), a nozzle (4) at the end of the washing hose, a rotator (6) for rotating the washing hose about its longitudinal axis, and a feed device (5) for pushing the washing hose from below upwards into the heat exchanger tube to be cleaned and for pulling it back down out of the heat exchanger tube.
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