概率法计算含自闭式冲洗阀给水管道的设计流量  

Calculating the design flow of the water supply pipe containing selfclosing flush valve by probability method

作　　者：陈和苗 马林海 

机构地区：[1]宁波建工设计研究院,宁波315040

出　　处：《给水排水》2012年第10期123-127,共5页Water & Wastewater Engineering

摘　　要：含大便器自闭式冲洗阀给水管道的设计流量,不同版本《建筑给水排水设计规范》中计算公式差异巨大,提出采用概率法计算其设计流量。分析计算了纯冲洗阀的"单一器具系统"与多种器具并存的"混合器具系统"。对于"单一器具系统",采用正态分布模型近似计算;对于"混合器具系统",分别采用正态分布模型近似计算、二项分布模型精确计算;推导出含冲洗阀管路设计流量公式的通式。研究结果表明:含冲洗阀管路应单列计算冲洗阀产生的流量;可采用正态分布简化计算;概率法计算含冲洗阀管路的设计流量科学、准确,且与实测流量相符。Due to the fact that there are huge differences of the calculation of the design flow of the water supply pipe containing water closet self-closing flush valve in the calculation formulas in different editions of code for design of building water supply and drainage,a probability method to calculate the design flow was brought forward.This paper analyzed and calculated the＂mono fixture system＂only containing flush valve and the＂mixed system＂containing various types of fixtures.For the＂mono fixture system＂,the normal random distribution model was used for calculation.For the＂mixed system＂,both the normal random distribution model and binomial random distribution model were used for calculation.Finally,the formula for the design flow calculation of the pipe containing flush valve was set up.It was concluded： the design flow of the pipe containing flush valve should be calculated separately;the normal random distribution could simplify the calculation;the probability method could be used to calculate the design flow in the pipe containing flush valve,and the result was accurate and scientific and met the measured value.

关 键 词：给水管道 自闭式冲洗阀 设计流量 概率法 二项分布模型 正态分布模型 

分 类 号：TU824.1[建筑科学]