JPS6411686A - Method of cleaning sea-water conveying path inner circumferential surface and cleaner - Google Patents

Abstract

PURPOSE: To safely clean an inner peripheral surface of a sea water supply passage by rotating a rotary body at a front end of a traveling machine which travels while bending by following the shapes of the sea water supply passage, peeling off and breaking marine organisms by a cleaning brush and a breaking hammer and discharging the marine organisms by a suction pipe. CONSTITUTION: A scavenger 1 having the traveling machine 2 to which front and rear traveling parts 3, 4 are joined by freely bending is carried in the curved sea water supply passage 8. The scavenger 1 is made to self-propel along the passage 8 and the rotary body 19 is rotated at the front end of the traveling machine 2 with a central axis line 43 as a rotation center. At the same time, the cleaning brush 24 projecting from a peripheral side of the rotary body 19 is brought into contact with the inner peripheral surface of the passage 8 to peel off the marine organisms having weak adhesive strength. At the same time, the hard marine organisms stuck to the inner peripheral surface are broken by rotating a breaking hammer 25 mounted on a peripheral side of the rotary body 19. At the same time, the peeled and broken marine organisms are sucked by a suction pipe 28 projecting from the rotary body 19 and are discharged out of the passage 8. Thus, the inner peripheral surface of the sea water supply passage can be safely and efficiently cleaned.