A movable apparatus for measuring back washing air and checking method for construction work of strainer block type lower watercollector using the same

摘要

The present invention prevents defective construction by pre-checking the blockage of the backwash air hole ejected through the strainer block and strainer, the level state of the strainer block, and the presence or absence of damage to the strainer during backwashing of the filter paper using a portable and portable air meter. and a portable backwash air measuring device that can improve cleaning ability through equal air backwashing and a method for inspecting poor construction of a strainer block-type lower water collection device using the same. To this end, a mobile backwashing air measuring device according to the present invention includes: a backwashing air moving pipe through which backwashing air ejected from a strainer provided in a strainer block is introduced and moved; and a backwash air quantity measuring unit mounted on one side of the backwash air moving pipe and measuring the amount of backwashing air moving along the backwashing air moving pipe.