GAS DISTRIBUTING STATION Russian patent published in 1999 - IPC

FIELD: gas industry; gas distributing technique; automated systems supplying natural gas from gas mains to consumers. SUBSTANCE: gas distributing station includes high-pressure gas preheater 1, turbine 4 and first temperature sensor 6 fitted in low-pressure gas line; all these members are mounted in succession in way of flow of gas in pipe line connecting the high-pressure and low-pressure gas lines; one inlet of high-pressure gas preheater is connected with high-pressure gas main and other inlet is connected with low-pressure gas line through adjusting valve 2 of high-pressure gas preheater. Control inlet of adjusting valve 2 of high-pressure gas preheater is connected with regulator 3 of high-pressure gas preheater 1. Output shaft of turbine 4 is connected with shaft of electric motor 5. To enhanced economical efficiency of use of excessive pressure in ensuring stability of output operational parameters, low-pressure gas line is provided with pressure sensor 7, low-pressure gas preheater 8, refrigerating chamber 9, second temperature sensor 10 and mixer 11 connected with outlet of turbine 4; inlet of turbine 4 is provided with turbine adjusting valve 12 whose control inlet is connected with turbine regulator 13 with is connected in its turn with pressure sensor 7; outlet of high-pressure gas preheater 1 is connected with mixer 11 by means of gas line fitted with adjusting valve 14 of refrigerating chamber 9; control inlet of adjusting valve 14 of refrigerating chamber 9 is connected with outlet of its regulator 15 whose inlet is connected with second temperature sensor 10; inlet of low-pressure gas preheater 8 is connected with inlet of adjusting valve 2 of high-pressure gas preheater 1 by means of gas line fitted with adjusting valve 16 of low-pressure gas preheater 8; control inlet of adjusting valve 16 of low-pressure gas preheater 8 is connected with outlet of regulator 17 of low-pressure gas preheater 8 whose inlet is connected with first temperature sensor 6 by means of first pulse line; regulator 3 of high-pressure gas preheater 1 is connected with turbine output shaft revolution sensor 18 by means of third pulse line. EFFECT: enhanced efficiency and reliability. 1 dwg