| 摘要 |
PROBLEM TO BE SOLVED: To reduce an installation space and the cost, to eliminate the reduction irregularity of a sucking capability, to stabilize the work, to simplify operation handling and to improve work efficiency in a portable vacuum cleaner properly moved for cleaning in an installation place at a thermal power plant. SOLUTION: This portable vacuum cleaner sucks dust from a general-service compressed air pipe with an ejector 6 using compressed air as a driving fluid and conveys the dust together with a dust collection bag filter 2 discriminating the dust, and it can be moved to a place where cleaning is required. The movement to a work place is easy, the work is stabilized and facilitated, no large- scale vacuum piping is required, and the cost in space and facility can be reduced.
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