| 摘要 |
PCT No. PCT/AU90/00049 Sec. 371 Date Nov. 16, 1990 Sec. 102(e) Date Nov. 16, 1990 PCT Filed Feb. 8, 1990 PCT Pub. No. WO90/09556 PCT Pub. Date Aug. 23, 1990.Apparatus for cleaning tubes in an array of such tubes (162, 175) such as heat exchanger or condenser units that will allow such cleaning action to be undertaken without removing the unit containing the array of tubes from normal service, the apparatus being adapted to be mounted in a head space zone of the unit and comprising a launcher (159, 192) movable on the head space zone to align with the tubes to be cleaned, the launcher being arranged to receive sequentially projectiles (1) from a projectile supply path (11) and to transfer same in a sealed manner to a pressurized fluid delivery path (89, 39) passing through the launcher (159, 192) so that the projectile is aligned with a tube to be cleaned.
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