【正文】 .................... 37 室內(nèi)燃?xì)夤艿浪τ嬎?............................................................ 37 管段流量的計算 ........................................................................ 38 第八章 調(diào)壓站設(shè)計 .................................................................... 40 調(diào)壓站的分類 ....................................................................................... 40 按使用性質(zhì)分類 ........................................................................ 40 按建筑形式分類 ........................................................................ 40 按調(diào)解壓力范圍分類 ................................................................ 41 調(diào)壓站的選址 ....................................................................................... 41 調(diào)壓站的組成 ....................................................................................... 41 調(diào)壓站的布置 ....................................................................................... 43 區(qū)域調(diào)壓站 ................................................................................ 43 專用調(diào)壓站 ................................................................................ 44 樓棟調(diào)壓箱 ................................................................................ 44 第九章 工程概預(yù)算 .................................................................... 45 安裝工程預(yù)算的組成 ........................................................................... 45 安裝工程預(yù)算的構(gòu)成 ................................................................ 45 直接費 ........................................................................................ 45 間接費 ........................................................................................ 46 利潤及稅金 ................................................................................ 46 室內(nèi)民用燃?xì)夤こ坦こ塘坑嬎?........................................................... 47 民用燃?xì)夤艿?、管道附件及常用燃?xì)庥镁甙惭b .................... 47 工程量計算規(guī)則及定額套用 .................................................... 48 管道工程量計算 ........................................................................ 49 致 謝 ............................................................................................. 51 參 考 文 獻 ................................................................................. 52。 and secondly to design the work according to the gas consumption and the requirements of the plan. In the design of gas pipeline work, the economic, technological and other factors should be considered Comprehensively。 根據(jù)管網(wǎng)的布置和流量，經(jīng)過水力計算的一系列步驟確定管徑；再將管徑作為已知條件， 再選取調(diào)壓設(shè)施以及用戶燃具后滿足供應(yīng)的壓力要求，設(shè)計具有一定的技術(shù)性和經(jīng)濟性。在設(shè)計燃?xì)夤芫W(wǎng)時，應(yīng)全面考慮經(jīng)濟、技術(shù)等方面因素，選擇經(jīng)濟合理的最佳方案。 本設(shè)計主要是針對開發(fā)區(qū)進行燃?xì)夤芫W(wǎng)的規(guī)劃，該設(shè)計采用天然氣為氣源，燃?xì)夤艿乐饕捎娩摴堋?摘 要 城鎮(zhèn)燃?xì)饣浅鞘鞋F(xiàn)代化的重要標(biāo)志之一。城鎮(zhèn)燃?xì)庠诎l(fā)展生產(chǎn)、 提高人民生活水平、節(jié)約能源、減輕污染、改善環(huán)境等方面起著重要作用。首先根據(jù)城市的面積及人口情況對開發(fā)區(qū)的燃?xì)庑栌昧窟M行確定，然后根據(jù)用氣量及規(guī)劃要求 進行管網(wǎng)設(shè)計。 因此本設(shè)計選用了中壓一級管網(wǎng)系統(tǒng)。 關(guān)鍵詞： 天然氣 管網(wǎng) 用氣量 管徑 Abstract Universality of Gas in city is an important sign of the modernization of city. In the development and production of city, improving living standards, energy conservation, reducing pollution and improving the environment, gas plays as an important role. The theme of this paper is to design the gas work in the development zone, taking the natural gas as the gas source, the steel pipe as the main gas pipeline. Firstly, according to the city area and the demographic situation of the development zone to determine the amount of gas needed。 finally, choose the best economical solution. therefore this design has selected center presses level of pipe works systems. In the above pipe work system, used the region to adjust the pressure to stand to the region air feed way. Accord