Control method and system for improving operation reliability of jet compressor

• Main Authors: YOU YONGSHENG, YANG BING, JIA BAOYING
• Format: Patent
• Language: Chinese; English
• Published: 08.11.2022
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

The invention discloses a control method and system for improving the operation reliability of a jet compressor in the technical field of compressor control, and aims to solve the problems that the operation reliability of the compressor is affected and liquid return is easy to occur due to the fact that the switching time of a supercooling electromagnetic valve of the compressor in the prior art is not appropriate enough. The method includes the steps that the middle pressure of a compressor is calculated and compared with the air injection pressure of the compressor, and the working state of a supercooling electromagnetic valve is adjusted; the superheat degree of the economizer is calculated and compared with a preset value, and the working state of the supercooling electronic expansion valve is adjusted; the method is suitable for compressor control work, and the switch of the supercooling solenoid valve is controlled, so that the switching time of the supercooling solenoid valve is proper; the opening de