铁道标准设计
鐵道標準設計
철도표준설계
RAILWAY STANDARD DESIGN
2014年
2期
121-124,125
,共5页
铁路客车%上水栓%水力计算%模型
鐵路客車%上水栓%水力計算%模型
철로객차%상수전%수력계산%모형
railway passenger train%water supply spigot%hydraulic calculation%model
为保证客车的正常供水，必须合理确定客车上水栓栓管管径和供水水压。通过分析客车上水栓的布置形式，利用Excel的计算功能，建立水力计算模型，逐段进行详细的水力计算。计算结果表明，随着栓管管径变化，局部水损与沿程水损的比值差别比较大，不能按照常规的10%~20%进行估算。编制的水力计算表格具有较强的通用性，可运用在类似工程中。
為保證客車的正常供水，必鬚閤理確定客車上水栓栓管管徑和供水水壓。通過分析客車上水栓的佈置形式，利用Excel的計算功能，建立水力計算模型，逐段進行詳細的水力計算。計算結果錶明，隨著栓管管徑變化，跼部水損與沿程水損的比值差彆比較大，不能按照常規的10%~20%進行估算。編製的水力計算錶格具有較彊的通用性，可運用在類似工程中。
위보증객차적정상공수，필수합리학정객차상수전전관관경화공수수압。통과분석객차상수전적포치형식，이용Excel적계산공능，건립수력계산모형，축단진행상세적수력계산。계산결과표명，수착전관관경변화，국부수손여연정수손적비치차별비교대，불능안조상규적10%~20%진행고산。편제적수력계산표격구유교강적통용성，가운용재유사공정중。
In order to ensure normal water supply for railway passenger train, the pipe diameter and water supply pressure of the water supply spigots should be reasonably determined. In this paper, by analyzing the layout pattern of water supply spigots and using the Excel's calculation function, a model of hydraulic calculation was established which can improve design efficiency, and a piecewise detailed hydraulic calculation was provided. The results show that the ratios of the local water head loss and frictional water head loss will be considerably different as the diameter of spigot pipe changes, so it is improper to estimate them in accordance with the conventional 10% to 20%. Moreover, being a universal one, the hydraulic calculation table established in this paper can be used in similar projects.
