Protection method and system for refrigeration system using magnetic levitation refrigeration compressor

Abstract

The invention provides a protection method and system for a refrigeration system using a magnetic levitation refrigeration compressor, and relates to the field of refrigeration compressor equipment. The method is applied to a refrigeration system including a magnetic levitation refrigeration compressor, a refrigeration circuit, an explosion-proof cabinet circuit, and a measuring element , the method utilizes the refrigerant that does not have the ability to ignite to isolate the ignition source and explosive gas inside the refrigeration compressor, supplemented by a positive pressure shell type explosion-proof scheme to protect the electronic control equipment in the explosion-proof cabinet. Accurately measure the refrigeration system through sensors; gas replacement, normal operation, fault conditions and feedback data to the control system in the explosion-proof cabinet for chain actions to form a complete protection plan.

Description

technical field [0001] The invention relates to the technical field of refrigeration compressor equipment, in particular to a protection method and system for a refrigeration system using a magnetic levitation refrigeration compressor. Background technique [0002] With the maturity of magnetic suspension bearing and ternary flow impeller technology, the magnetic suspension high-speed centrifugal compressor gradually replaces the traditional screw type and piston type compressor with its high efficiency and quietness, and is recognized by users. The unilateral gap of the magnetic suspension bearing is large, and the flameproof scheme of the conventional screw compressor and piston compressor is not suitable. However, the rotating body of the magnetic suspension bearing usually has the problem of large axial displacement during the process from stationary to running, and it is easy to cause the gas delivered by the three-dimensional flow impeller to leak from the seal, result...

AI Technical Summary

Problems solved by technology

The unilateral clearance of the magnetic suspension bearing is large, and the flameproof scheme of the conventional screw compressor and piston compressor is not applicable

However, the rotating body of the magnetic suspension bearing usually has the problem of large axial displacement during the process from stationary to running, and it is easy to cause the gas delivered by the three-dimensional flow impeller to leak from the seal, resulting in hidden dangers of ignition. Therefore, the refrigeration compressor should be designed in combination with the refrigeration compressor system. The explosion-proof scheme of the body

Images