Patent ID: 9746261
Date: 2017-08-29
CPC Classifications: B08B,F24F,F25B,F28D,F28F,F28G

Claim:
1. A method comprising the steps of: a) a pre clean measuring step comprising: b) mixing water and a cleaning solution together to form a mixture; c) applying a layer of the mixture directly onto the fins and outer surface of the matrix coil, said cleaning solution being noncorrosive; d) allowing the mixture to set on the coils for a predetermined time that is sufficient so that contaminants formed on a surface of the heat exchanging coils are loosened and begin to dissolve; e) heating and pressurizing water and the cleaning solution forming a wet steam mixture; f) directing the wet steam mixture with a wand at exterior edges of the fins and into each of the plurality of channels as to penetrate the coil matrix between the inlet side and the outlet side; g) articulating an angle of a wand so that the wet steam mixture is directed accurately through the channels extending through the plurality of rows between the inlet side and the outlet side of the coil matrix, wherein the wand includes a rotational joint and the method includes a step of articulating the rotational joint so that the angle of the wet steam mixture varied and the wet stream mixture is directed through the channels; and h) a post clean measuring step including measuring post cleaning operating conditions at the inlet side and the outlet side of the heat exchanger.