IMPROVED GAS PRESSURE CONTROL Russian patent published in 2011 - IPC F16K1/42 F16K47/02 G05D16/06 

FIELD: power industry.

SUBSTANCE: gas pressure control includes the main housing (2) with the first pipe (4) and the second pipe (6), calibrated gas passage (8), gate (9), noise-reducing element (102) and axisymmetrical housing (7). Gate (9) is located at least partially in the main housing (2) and has the possibility of being moved for adjustment of hole of calibrated gas passage (8) between extreme open and closed positions. When the gate is located in extreme closed position, it interacts with the corresponding installation groove (101). Noise-reducing element (102) is located in calibrated passage (8), intended for reduction of noise created inside pressure control, and essentially contains cylindrical wall (103) having gas passage holes (104). Axisymmetrical housing (7) is intended for arrangement of noise-reducing element (102) and located in passage (8). Installation groove (101) is made as an integral part of axisymmetrical housing (7). Noise-reducing element (102) is inserted into axisymmetrical housing (7) when it is in elastic deformed state and applies the appropriate elastic force mainly in radial direction to inner surface of cylindrical wall of axisymmetrical housing (7).

EFFECT: simplifying removal of noise-reducing elements of control at their wear and tear.

10 cl, 7 dwg