METHOD AND SYSTEM FOR feedback control based on the level SPL

摘要

FIELD: machine building.;SUBSTANCE: procedure for control of valve in system of control over process consists in determination of level of sound pressure in pipeline connected to valve. Sound pressure is used as parameter of feedback in control system. Control system adjusts settings of the valve based at least partially on the said specified level of sound pressure. To determine a level of sound pressure there is used at least one pressure gauge installed on an internal wall of the channel. The system for control of flow of fluid medium through the control valve consists of an adjusting valve, of the first and second channel, of at least one pressure gauge and of valve controlling device. The first channel is connected with the control valve and is located upstream from the control valve. The second channel is connected with the control valve and is located upstream from the control valve. The sound pressure gauge is set on an internal wall of the second channel. The valve control device is functionally connected with the control valve and with at least one pressure gauge; it is programmed for change of settings of the control valve.;EFFECT: raised accuracy of noise level prognosis.;17 cl, 3 dwg