PRESSURE FLUCTUATION SUPPRESSION DEVICE IN THE GAS REDUCTION LINES Russian patent published in 2017 - IPC F16L55/04 

FIELD: oil and gas industry.

SUBSTANCE: device is intended to suppress the pressure fluctuation in the gas reduction lines at the gas distribution stations. The device consists of the washers package with the orifice holes fixed in the housing, which are distributed along the washers radius so, that their throughput area forms the velocity profile in the gas pipeline cross section, close to the steady stationary medium flow velocity profile. The orifice holes in the washers package are displaced relatively to each other in the circular direction. The device is provided with the splitter bush, retaining washer, flow straighteners, at that the splitter bush is perforated, the area of its perforations is not less than the area of the pressure regulator outlet section, and is installed in the channel output, it is pressed by the device housing and serves to eliminate the resonance modes of the pressure regulator operation and alignment of the gas flow speed according to its outlet section. The retaining washer is installed in the inlet flange of the device. The flow straightener is designed as the perforated washer, which length is not less than the diameters of the perforated holes, and is located at the outlet part of the device housing.

EFFECT: reduction of fluctuation and vibration of gas pipeline wall and the environment noise reduction.

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