円形弁の研究第4報 : 安全弁型平面座弁の性能

概要

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The characteristics of flat-seated valves provided with guide cylinders as used in some types of safety valve are treated in this paper. Discharging water through a valve (39 mm in diam.) under a constant head of about 2 meters, either into the air, or into the vessel filled with water, we measured the discharge and lifting force for each valve lift, thus observing the performance of the guide cylinder. In the next place, to eliminate the effect of the cylinder edge, we kept the guide cylinder always a little higher than the valve, while the water was issued into the air. Under these conditions we measured the discharge and the lifting force as well as the angle of jet for each of the flat-seated valves of nine kinds, widely differing in diameter ratios. The relations between the quantities thus obtained were made clear by the use of the momentum equation.
一般社団法人日本機械学会の論文
1958-01-25