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在液压伺服系统中,控制压力通常取为供油压力的1/2。在我国的汽轮机液压调节系统中,二次油压几乎也都取为供油压力的1/2。目前有的同志认为,从压力灵敏度的最佳值出发,二次油压的最佳值应是供油压力的3/4,而不是1/2。本文从线性度、压力灵敏度、流量放大系数、耗油量等方面进行全面比较,认为最佳二次油压仍应是供油压的1/2。
In the hydraulic servo system, the control pressure is usually taken as the supply pressure of 1/2. In our country’s steam turbine hydraulic regulation system, the secondary hydraulic pressure is almost taken as the supply pressure 1/2. At present, some comrades think that from the optimal value of pressure sensitivity, the optimal value of the secondary oil pressure should be 3/4 instead of 1/2 of the oil supply pressure. This article from the linearity, pressure sensitivity, flow amplification factor, fuel consumption and other aspects of a comprehensive comparison, that the best secondary oil pressure should be for the supply of 1/2.