Patent ID: 6978793

Claim:
An apparatus for cleaning a single pass plate and frame heat exchanger having a moveable frame plate end, said apparatus comprising: said single pass plate and frame heat exchanger having at least two removable flanges having a center point and an off-center hole therethrough for installation of distribution/collection tubes, said flanges secured by bolting and positionable in at least four orientations such that said hole may be located above, below, left or right of said center point; a lower distribution/collection tube with a plurality of apertures therethrough, said apertures including predetermined diameters and predetermined spacing, and said lower distribution/collection tube capable of being located off-center of said flange center point in at least four positions; an upper distribution/collection tube with a plurality of apertures therethrough, said apertures including predetermined diameters and predetermined spacing; a plurality of connecting hoses; a portable pump connected to a reverse manifold valve network through a portion of said plurality of connecting hoses; a circulation tank connected to said portable pump through a portion of said plurality of connecting hoses; said upper and lower distribution/collection tubes connected to said reverse manifold valve network, each of said distribution/collection tubes connected through a portion of said plurality of connecting hoses; a bag filter connected to said reverse manifold valve network and to said circulation tank.