VALVE MANIFOLD FOR PURGEABLE AND/OR SOLIDS-PERMEABLE PIPING SYSTEM AND DISTRIBUTION PIPING SYSTEM Russian patent published in 2023 - IPC G21C17/08 

FIELD: valve technology.

SUBSTANCE: invention relates to a valve block (2, 200, 300, 400, 500) for a cleanable and/or solids-permeable piping system (100) of a process plant, such as a nuclear power plant. The unit contains at least two rotary servo valves, each having at least one pipe inlet (A) and at least one pipe outlet (C, D, E), as well as a rotary actuator (13, 23) with at least one through channel (15c, 15d, 15e, 25). Moreover, in the open position of the actuating element (13, 23), the pipe inlet (A) is connected to the pipe outlet (C, D, E) by a passage channel (15c, 15d, 15e, 25); in the closed position, the actuating element (13, 23) separates the pipe inlet (A) from the pipe outlet (C, D, E). Moreover, at least two rotary servo valves are made with the possibility of rotation around the same axis (R) of rotation, and the actuating elements (13, 23) of at least two rotary servo valves are connected to each other without the possibility of turning, the passage channel (15c, 15d , 15e, 25) of the first rotary servo valve is displaced relative to the flow passage (15c, 15d, 15e, 25) of the second rotary servo valve, preferably plane-parallel in the axial direction (L) of the rotation axis (R).

EFFECT: small weight and dimensions of the block, increase in the efficiency of the device for collecting radionuclide targets with less risk of contamination.

9 cl, 4 dwg