Driving double-buffering execution device for stepless air volume adjusting air valve of compressor

Abstract

The invention discloses a driving double-buffering execution device for a stepless air volume adjusting air valve of a compressor. The driving double-buffering execution device comprises an actuating mechanism main body. The upper part of the actuating mechanism main body is connected with an oil inlet connector, the middle part of the actuating mechanism main body is connected with a two-position three-way high-speed electromagnetic valve, the lower part of the actuating mechanism main body is connected with a plunger assembly, and the left part of the actuating mechanism main body is connected with an oil return opening connector. An air valve opening buffering assembly is arranged in the oil inlet connector. According to the driving double-buffering execution device for the stepless air volume adjusting air valve of the compressor, the buffering device of which the opening and closing processes of a valve are completely independent is provided, the opening and closing processes of the valve are independently controllable, the rapid movement section and the buffer section of a plunger can be well matched with the movement process of a pressure valve of the compressor, and therefore the control precision of the air supply amount and the output pressure of the compressor is improved.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a driving double-buffer actuator for stepless air volume regulating air valves of compressors. Background technique [0002] In order to save energy, more and more large-scale piston reciprocating compressors adopt electronically controlled air distribution system. The fixed-displacement air supply mode is transformed into a variable-displacement air supply mode to realize stepless adjustment of the air supply volume. [0003] The switch control of the compressor inlet valve is realized by a two-position three-way valve controlling an actuator of a hydraulic piston, and pushing the valve plate of the air valve to reciprocate through the unloader. Due to the high-speed response of the hydraulic system, if no cushioning measures are taken, the valve plate will quickly rush to the valve seat under the action of hydraulic or pneumatic pressure during the opening and closing of t...

AI Technical Summary

Problems solved by technology

In design, under normal circumstances, priority is given to the cushioning requirements during the closing process of the air valve, so that during the opening process of the air valve, due to the existence of the gap between the valve plate and the unloader, the air valve is just in contact with the valve plate during the opening process In the process of actually pushing the valve to open, the fast section has a short stroke and most of the stroke is in the buffer section, that is to say, the opening speed of the valve is mostly in the buffer state. System control accuracy that affects compressor air supply volume and air supply pressure

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