排水トラップ中の封水挙動の線形的取扱い : 第2報,インパルス応答の解析とトラップの性能

概要

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This paper deals with analysis of the impulse response of the seal water oscillation system for the purpose of giving basic design instructions for drain traps. The impulse response can be discussed using normalized quantities on the displacement of the gravitational center in the seal water and on the seal water flow. The normalized final flow (N. F. F.) is introduced in the criterion of the dynamic performance of drain traps. N. F. F. depends on the system parameters and the normalized initial flow. The fundamental characteristics of N. F. F. are examined. The negative pressure impulse which breaks the trap water seal is defined as an index of the dynamic drain trap performance. It is verified that this value calculated from N. F. F. coincides with the experimental value. The relationship between this index and the seal water depth is clarified.
社団法人日本機械学会の論文
1986-05-25