Patent attributes
The present invention provides for a cleaning apparatus for a vertical exhaust pipe in an exhaust system, the cleaning apparatus comprising a cleaning liquid source, an enclosure receiving a cleaning liquid from the cleaning liquid source, and a fluid communication between the enclosure and an inner surface of the exhaust pipe so that the cleaning liquid supplied to the enclosure by the cleaning liquid source is gravity fed into the exhaust pipe through the fluid communication, thereby creating a cleaning liquid film flowing down along at least part of the inner surface of the exhaust pipe, whereby the cleaning liquid film washes the at least part of the inner surface of the exhaust pipe. The cleaning apparatus is thus efficient, has a low risk of failure and is easily accessible for maintenance. A method for cleaning a vertical exhaust pipe in an exhaust system is also provided.
