本文選題：居住小區(qū) + 給水管網(wǎng)　； 參考：《沈陽建筑大學(xué)》2013年碩士論文

【摘要】：隨著房地產(chǎn)行業(yè)的興起、發(fā)展、繁榮,居住小區(qū)大量涌現(xiàn),作為必不可少的配套設(shè)施——居住小區(qū)給水管網(wǎng),已經(jīng)越來越受重視,其給水設(shè)計流量的確定是建筑給排水設(shè)計人員亟待解決的問題。居住小區(qū)設(shè)計流量的計算是居住小區(qū)管網(wǎng)水力計算的基礎(chǔ),是確定各管段管徑、管道水頭損失、給水系統(tǒng)壓力的主要依據(jù)。管段的設(shè)計秒流量是確定給水管徑和壓力的依據(jù),此流量的選擇直接關(guān)系到最不利配水點的選取、水壓的保證、水泵及基建設(shè)備的投資費用。只有管道流量設(shè)計合理,才能使整個給水系統(tǒng)正常運行。 針對居住小區(qū)給水管網(wǎng)設(shè)計秒流量,研究首先對居住小區(qū)的基本特征、給水狀況進行了詳細的闡述,隨后對現(xiàn)行給水管道設(shè)計流量進行解讀,并對居住小區(qū)設(shè)計流量計算公式進行了推導(dǎo),最后引用工程算例,驗證了公式的實用性。 居住小區(qū)一般由多幢獨立的建筑物組成,其用水特點既不同于市政給水管網(wǎng),也與室內(nèi)給水管網(wǎng)有較大的差異。居住小區(qū)給水流量是處于市政給水流量和室內(nèi)給水流量之間的過渡階段。迄今為止,居住小區(qū)還沒有統(tǒng)一的設(shè)計流量計算方法,如果按市政給水管道流量計算,計算結(jié)果可能偏��；如果采用室內(nèi)給水管道流量計算,計算結(jié)果可能偏大,出現(xiàn)居住小區(qū)給水管網(wǎng)管徑大于市政管網(wǎng)管徑的不合理現(xiàn)象。完全按照實測統(tǒng)計的方法去推倒經(jīng)驗公式,其難度及工作量又相當(dāng)大,目前設(shè)計采用“市政”“室內(nèi)”兩種計算值對比,選用其中最大值作為居住小區(qū)的設(shè)計流量,不但麻煩,其結(jié)果也不盡如人意。 以普通住宅為模型,用設(shè)計秒流量概率計算法及最大時平均秒流量計算法綜合對其進行流量計算,并對其計算結(jié)果進行比較、分析。提出了利用兩個公式計算結(jié)果的交點“0”也就是臨界當(dāng)量N’G作為判定點,判定居住小區(qū)給水管網(wǎng)流量計算式的取舍；同時在小于臨界當(dāng)量N’G時,利用曲線擬合出居住小區(qū)設(shè)計流量公式；給出臨界點關(guān)于衛(wèi)生器具給水當(dāng)量平均出流概率U0及當(dāng)量總數(shù)NG的曲線分布圖；對研究結(jié)果的適用條件范圍進行延展,使其更簡單明了。 居住小區(qū)給水設(shè)計流量是介于最大時設(shè)計秒流量和平均時設(shè)計秒流量之間。針對不同類型的住宅,分別推導(dǎo)出了相應(yīng)的設(shè)計秒流量計算公式,當(dāng)住宅小區(qū)給水當(dāng)量總數(shù)小于等于臨界當(dāng)量N’G時,用本文推導(dǎo)出的公式,當(dāng)大于臨界當(dāng)量時,用最大時平均設(shè)計秒流量公式。其中,臨界當(dāng)量值與居住小區(qū)的人口、小時變化系數(shù)、日生活用水定額有關(guān)系,任何一個值的改變,臨界當(dāng)量就會隨之改變。通過對不同住宅類型繪制的臨界當(dāng)量曲線圖能更容易的選擇居住小區(qū)設(shè)計秒流量的公式。
[Abstract]:With the rise, development and prosperity of the real estate industry, a large number of residential areas have emerged. As an indispensable supporting facility, water supply networks in residential areas have been paid more and more attention to. The determination of design flow of water supply is an urgent problem to be solved by designers of building water supply and sewerage. The calculation of design flow in residential area is the basis of hydraulic calculation of pipe network in residential district, and is the main basis for determining pipe diameter, head loss and pressure of water supply system. The design second flow of the pipe section is the basis for determining the diameter and pressure of the water supply pipe. The choice of this flow rate is directly related to the selection of the most unfavorable water distribution point, the guarantee of water pressure, and the investment cost of water pump and capital construction equipment. Only if the design of pipeline flow is reasonable, can the whole water supply system run normally. Based on the design of secondary flow of water supply network in residential area, the basic characteristics and water supply status of residential district are described in detail, and then the design flow of current water supply pipeline is interpreted. The formula for calculating the design flow of residential area is deduced, and the practicability of the formula is verified by an engineering example. The residential district is generally composed of many independent buildings, the characteristics of water use are not only different from the municipal water supply network, but also different from the indoor water supply network. Residential district water supply flow is a transitional stage between municipal water supply flow and indoor water supply flow. Up to now, there is no uniform design flow calculation method in residential area. If the calculation is based on municipal water supply pipeline flow, the calculation result may be small; if the indoor water supply pipe flow calculation is adopted, the calculation result may be too large. The unreasonable phenomenon that the pipe diameter of water supply network in residential district is larger than that of municipal pipe network. The difficulty and workload of pushing down the empirical formula in accordance with the method of actual measurement statistics is quite great. At present, it is not only troublesome to use the maximum value of the "municipal" indoor "calculation value as the design flow rate of the residential district, but also to compare the two calculation values of" municipal "and" indoor ". The results are not satisfactory. Taking ordinary residence as the model, the calculation method of the probability of design second flow and the method of calculating maximum average second flow are used to calculate the flow comprehensively, and the calculation results are compared and analyzed. Using the intersection point "0" of the results of the two formulas, that is, the critical equivalent NG, as the judgment point, this paper proposes to determine the choice of the formula for calculating the flow of water supply network in residential area, and at the same time, when the value is less than the critical equivalent NG, Using the curve to fit the design flow formula of residential area, to give the curve distribution map of critical point about the average discharge probability U0 and the equivalent total number NG of the sanitary appliance feed water equivalent, and to extend the applicable condition range of the research result. Make it simpler and clearer. The design flow rate of residential district water supply is between the maximum design second flow and the average time design second flow. For different types of residential buildings, the corresponding design second flow calculation formulas are derived. When the total feed water equivalent of residential area is less than or equal to the critical equivalent NG, the formula derived in this paper is used when it is greater than the critical equivalent. The second flow formula is designed with maximum average time. Among them, the critical time value is related to the population, the hourly change coefficient and the daily water consumption quota of the residential area, and the critical equivalent will change with the change of any value. By drawing the critical equivalent curve of different residential types, it is easier to select the formula of design second flow of residential area.
【學(xué)位授予單位】：沈陽建筑大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TU821;TU991.3

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