| abstract |
The invention relates to a method for chemical treatmentnof hollow body systems, in particular of at least twonTurbine condenser with horizontal tubes withninhibited acids, The invention should i.a. be achievedndsß a covering removal on the entire wall of all tubesnHollow body systems takes place, with the pad removal over the entirenTreatment time with a pickling solution of constant concentrationnperform with the least time and technical effort,nat the onset of a small wastewater volure. According to the inventionnProcedure is therefore when draining water from the firstnKohlkörpersystem and pumping into the second hollow body system thenWater concentrated by a metering device, inhibitednAdded acid and the pickling solution thus prepared in the secondnPumped hollow body system and by a reciprocal to thenHollow body systems sucked suction device.nAfter acting on the coating, the pickling solution is discharged,ndosed, pumped and sucked into the secondnHollow body system and then the deposited foam in the firstnSucked hollow body system. This process is repeated several times, |