FIELD: technological processes.
SUBSTANCE: invention relates to means of cleaning the inner zone of a heat exchanger, particularly steam generator (2) of a nuclear power plant. In compliance with this invention, high-pressure water jets comprises manipulator (5) installed in vertical corridor passing between bundles of heat exchanger tubes, and elevator (4) connected with said manipulator (5). Manipulator (5) has at least one rotary nozzle (8, 8.1, 8.2, 8.3, 8.4), installed with possibility of rotation around rotary axis (S1, S2, S3, S4), orientation of which is matched with distance between pipes in tube bundle (3) of heat exchanger.
EFFECT: technical result is higher efficiency of cleaning heat exchangers with pipes passing in horizontal direction.
18 cl, 3 dwg
