Four-column one-stage compression large vertical piston oxygen compressor

The utility model discloses a four-row one-stage compression large vertical piston oxygen compressor. The utility model relates to a high-pressure air compressor which is composed of a machine body, a crankcase, a crankshaft, a connecting rod, a crosshead, an air cylinder, a piston, an oil scraper, a sealer, an air inlet filter, a buffer, a cooler, an air-water pipeline system, a pipeline valve, a safety valve, a shaft head pump, an oil station, a motor, a flywheel coupling, an oil steam suction device, an explosion-proof wall, a compressor control system and the like. According to the technical scheme, the blank of the vertical piston oxygen compressor with the air inlet pressure of 1.0 MPa (G) and the air outlet pressure of 2.5 MPa (G) is overcome, on the premise that the heat exchange effect is guaranteed, the number and the length of the heat exchange pipes are reduced, the material cost is saved, and the overall safety and the working efficiency are improved. 一种四列一级压缩大型立式活塞氧气压缩机，它由机身、曲轴箱、曲轴、连杆、十字头、气缸、活塞、