Compressor slide valve position control structure

• Main Author: CAI ZONGHAN
• Format: Patent
• Language: English
• Published: 08.04.2015
• 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 invention relates to a compressor slide valve position control structure. A compressor has a low pressure area, a compression area and a high pressure area, wherein a motor for driving a rotor is arranged in the low pressure area; at least a rotor and a regulating slide valve are contained in the compression area; and an oil hydraulic cylinder and a piston are arranged in the high pressure area. Slide valve position control equipment is composed of the oil hydraulic cylinder, the piston, the regulating slide valve and a communicating pipe group. A plurality of regulating ducts in different lengths are formed in a regulating slide valve wall. The communicating pipe group contains a main channel, an oil drainage pipe, a delivery pipe, a first channel branch pipe and a second channel branch pipe, wherein the main channel is connected with the oil hydraulic cylinder; the delivery pipe is communicated with the main channel, is arranged in the compressor and can be communicated with an oil inlet pipeline; and the first channel branch pipe and the second channel branch pipe are respectively communicated with the main channel and are respectively corresponding to the regulating ducts. Thereby, oil flow is controlled to drive the piston so as to regulate the position of the slide valve.