【摘要】 分析了提高2D5.5-19/12一氧化碳压缩机排气量的各种方法,采取对压缩机一、二级气阀进行改造来提升压缩机排气量。在保证气阀有足够的有效通流面积的前提下,改造后的气阀余隙容积小,气阀关闭时的单位阀片迎风面积的弹簧力小,气阀运动规律良好。实测表明,气阀改造后2D5.5-19/12一氧化碳压缩机排气量提升约6%,改造后的气阀同时具有良好的经济性与可靠性。更多还原

【Abstract】 Various methods to increase the capacity of 2D5.5-19/12 CO compressors are discussed. The new valves of the compres-sors are developed. The new valves have enough effective flow areas, small clearance volume, small spring forces on the valve plates and good regularity of motion. Tests show that the capacity of the compressor with the new valves increases by about 6%. At the same time, the new valves have good economy and reliability.更多还原