Oil-free SF6 gas recovery compressor

• Main Author: XUAN GELUN
• Format: Patent
• Language: Chinese; English
• Published: 24.04.2013
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The utility model relates an oil-free SF6 gas recovery compressor. The whole compressor adopts an open-type arrangement, one end of a crankshaft of a transmission mechanism stretches out of a crankcase and is connected with a motor through a coupling, and a condenser is arranged outside the other end of the motor. The structure of the compressor adopts a symmetrical balance type two-stage piston type, and a crank alternate angle of two opposite lines of air cylinders is 180 degrees. When the oil-free SF6 gas recovery compressor works, due to the fact that the directions of the force of two opposite lines of pistons are opposite and can counteract each other, and therefore the stress situation of the crankshaft is improved, meanwhile the inertia force of a crank-link mechanism can be balanced, and an inertia moment is quite small. The compressor has the advantages of oil-free lubricating and high-pressure exhausting, exhausting pressure is up to 5 MPa which is higher than the critical pressure of the SF6 gas w