| 摘要 |
FIELD: railway transport. ^ SUBSTANCE: invention relates to compressed air supply system of locomotive pneumatic equipment. Proposed adsorption plant contains compressor 1 with drive motor 2, controlled by pressure relay 3, two absorbers 6, 7, with blower and upper vertical branch pipes and lower and upper side horizontal branch pipes. Pressure main line 5 connects compressor 1 with absorbers 6, 7 through cutoff valves 8, 10. Feed main line 12 connects absorbers 6, 7 with group of reservoirs 13 furnished with separator-accumulator 14 with purge valve 15. Dry air main line 21 is connected through other cutoff valves 17, 19 to absorbers 6, 7. Control unit 22 regulates delivery of hot air from compressor 1 to one of absorbers at each cycle of plant operation. Dry air main line 21 is connected to absorbers 6, 7 through check valves 26, 27. Purge valves 29, 31 with electromagnetic valves 34, 35 are connected to lower vertical branch pipes of absorbers 6, 7 through moistures traps 28, 30. Second pressure relay 32 with normally closed contact 33 is connected to dry air main line 21. Electromagnetic valves 34, 35 of purge valves 29, 31 of absorbers 6, 7 are energized from supply source 24 through normally-closed contact 22 of pressure relay 32. ^ EFFECT: improved efficiency of drying of compressed air. ^ 1 dwg |
