Patent ID: 6990987

Claim:
For a heat exchanger to be cleaned by a cleaning apparatus having a fluid discharge end, a fluid containment apparatus for attachment to the heat exchanger, the heat exchanger having multiple fin tubes supported by and positioned within a substantially cylindrical frame, the frame having an openable and substantially circular end and each of the fin tubes being U-shaped and having a first end and a second end, such that each fin tube first end and second end is proximate the openable end when the frame is opened, the frame openable end having a removable end member for opening the frame openable end such that the cleaning apparatus fluid discharge end is insertable into one of the fin tube first ends, such that cleaning fluids discharged within the fin tube exits the fin tube's second end, the apparatus comprising: an enclosure having a frame, a flexible housing, and a drain member, the housing having an interior, the housing being supported by the frame, the housing being extendable over and attachable to the heat exchanger frame opened openable end, the housing having a plurality of access portions, each access portion being openable to expose a number of the fin tube first ends to cleaning apparatus fluid discharge end direct access and entry and cleaning fluid discharged from the cleaning apparatus fluid discharge end, the flexible housing substantially blocking such direct access and entry to the fin tube second ends corresponding to the exposed fin tube first ends, such access portion being closable to substantially block such direct access and entry to such exposed heat exchanger fin tube first ends, the flexible housing being attached such that cleaning fluid discharged from the second end of the fin tube into which the cleaning apparatus discharge end is inserted, is received by the housing and directed by the housing to the drain member.