円形弁の研究 : 第5報, 弁室の形状および大小と円形弁の性能

概要

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I. We have more widely than ever studied the effects of valve-chamber size on the characteristics of flat-seated and conical-seated disc valves placed above the valve-seat in a valve chamber of vertical cylindrical type. Utilizing all the experimental results published in our reports (No. 1〜4), the characteristics of the valves concerned were illustrated by groups of curves, in which the diameter ratio of the valve and valve-chamber, that is, d/D ranges from o to 1,where D/d=∞ being for the case of free discharge into the air (Report No. 4) and D/d=1 for the case where discharge Q=0. II. We have prepared a valve box of the angle valve type with an inside diameter of 100 mm and inside height of 63 mm, provided with an exit hole of 50 mm in diameter on the side. Discharging water under a head of about two meters, we investigated the effects of diameter ratio of valve and valve-chamber on the characteristics of flat-seated and conical-seated valves.
一般社団法人日本機械学会の論文
1959-05-25