| 摘要 |
PROBLEM TO BE SOLVED: To provide an annular compression pneumatic circuit capable of preventing drain from being accumulated at a bent portion in a horizontal direction present at an annular loop pipe passage and performing the most appropriate separation or removal of drain in consideration of a characteristic of such a loop pipe passage.SOLUTION: An annular compression pneumatic circuit 1 comprises a base piping 3 where compression air from an air compressor 2 flows, an annular-formed loop pipe passage 5 and a bent part 6. A drain discharging unit 11 for use in discharging condensed water,i.e. drain contained in compression air is installed at an upstream side of the bent part 6 in the loop pipe passage 5 and the drain is discharged by the drain discharging unit 11 before the drain is accumulated in the bent part 6 to cause an effective inner diameter in the bent part 6 to be decreased.SELECTED DRAWING: Figure 1 |
