FIELD: cleaning of heat exchanger tubes. SUBSTANCE: device has housing 1, V-shaped tube sheets 4 with two walls engageable by edges 8, turbolators 5 and branch pipe 7 for removal of balls. All tube sheets 4 are located axially relative to housing 1; edges 8 of walls of tube sheets 4 are located at acute angle to axis of housing on side of its inlet hole; sheets 4 are engageable by other edges 6 of their walls; turbolators are located along edges 6 and are engageable above inlet hole of branch pipe 7 for removal of balls. To enhance reliability of turning of tube sheets and additional simplification of construction of device, tube sheets 4 are mounted for rotation about their axes and are fastened with housing by means of shear pins or rotational retainers calibrated for preset force of operation. EFFECT: reduction of overall dimensions and simplification of construction, enhanced reliability of turning of sheets in case of emergency cutout. 3 cl, 4 dwg
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