Method of pressure pulse cleaning heat exchanger tubes, upper tube support plates and other areas in a nuclear steam generator and other tube bundle heat exchangers

摘要: The present invention relates to an improved method of cleaning a nuclear steam generator by removing the buildup deposits which accumulate on upper tube support plates, heat exchanger tubes, flow holes in plates and between other secondary side surfaces vessel through utilization repetitive shock wave induced deposits. serves effectively safely loosen products corrosion elements settle these thereby facilitiates their easy removal flushing vacuuming vessel. waves are air-gun type pressure pulse sources or pressurized gas-type sources.