Development of a Combined Gas Reduction Scheme with Stabilization of the Outlet Pressure Variation Range

Statement of the problem. To develop and experimentally test a combined gas reduction scheme with stabilization of the range of output pressure fluctuations before feeding into gas-consuming equipment. Results. The article presents the results of experimental testing of a combined gas mixture reduction scheme before feeding into gas-consuming equipment, ensuring stabilization of the output pressure regardless of the initial pressure and gas flow rate, providing for two reduction lines included in the pressure reduction process alternately, depending on the pressure formed in the cylinder. The effectiveness of the developed combined scheme has been experimentally proven in comparison with a single-stage reduction scheme. The ranges of output pressure fluctuations from the regulator before feeding into gas-consuming equipment have been determined. Conclusions. As a result of the conducted experimental studies, in the range of gas mixture consumption from 0.07 to 1.2 m3/h, and the outlet pressure of gas from the cylinder from 0.07 to 1.2 MPa (excess) using a combined reduction scheme, the values of the outlet pressure were obtained that are within the recommended limits of 2.5—3.5 kPa ensuring the operation of gas-using equipment in the nominal mode.