High/low-pressure loop locking system for compressed air station

• Main Authors: WANG ZUPENG, ZHANG HONGWEI, ZHU XIAOJUN, CHEN XIAOLU, HE HAIHONG, WANG FUJUN, CHE FEI, FENG HONG, GOU KEXUE, WU GANG, CHEN GENMA, WANG JIANHUI
• Format: Patent
• Language: English
• Published: 06.05.2015
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; WEAPONS

The utility model relates to a locking system and in particular relates to a high/low-pressure loop locking system for a compressed air station. The utility model aims at providing a control system capable of achieving high/low-pressure loop locking of a pressure fan of the compressed air station. In order to solve the technical problem, according to the technical scheme disclosed by the utility model, the high/low-pressure loop locking system for the compressed air station comprises a high pressure cabinet and a pressure fan, wherein the high pressure cabinet comprises a control power supply; a control loop is arranged in the pressure fan and comprises a single core PC, a low-pressure loop and a tripping loop; the low-pressure loop and the tripping loop are respectively connected with the single core PC; the control power supply is connected with the single core PC; and an alternating current relay is arranged on the control loop and is connected in series with the tripping loop by virtue of a normally closed contact.