| 摘要 |
FIELD: reduction of noise in piston compressor plants. SUBSTANCE: compressor is mounted in sound-proofing blimp. Air suction main is connected with atmosphere and delivery main is connected with consumer. Control unit furnishes commands for cut-off cocks; one cut-off cock is fitted at inlet of jet injector working nozzle and is used for communicating it with delivery main. Other cut-off cock is fitted in pipe line connecting the intake chamber of jet injector with chamber of sound-proofing blimp. Diffuser of jet injector is connected with atmosphere; jet of air taken from delivery main escape from working nozzle at high velocity and flows to intake chamber and then to atmosphere sucking air from sound-proofing blimp chamber. EFFECT: possibility of maintaining pressure inside sound-proofing blimp close to zero, thus considerably reducing level of noise. 3 cl, 2 dwg
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