【正文】 業(yè)：建筑環(huán)境與設(shè)備工程 重慶大學(xué)城市建設(shè)與環(huán)境工程學(xué)院 二 O 一三 年六月Graduation Design(Thesis) of Chongqing University Planning for projects of a certain city gas NG storage and distribution station process and engineering design 2 Undergraduate: Jiang Wanqin Supervisor: . Huang Xiaomei Major: Building Environment And Facilities Engineering Faculty of Urban Construction And Environmental Engineering Chongqing University June 2021重慶大學(xué)本科學(xué)生畢業(yè)設(shè)計(jì)（論文） 中文摘要 I 摘 要 城市燃?xì)馐浅鞘薪ㄔO(shè)的重要基礎(chǔ)設(shè)施之一，也是城市能源供應(yīng)中的一個(gè)重要組成部分，它為城市工業(yè)、商業(yè)和居民生活提供優(yōu)質(zhì)氣體燃料。 作為現(xiàn)代城市生活和生產(chǎn)中一種廣泛應(yīng)用的能源，城市燃?xì)庠谖覈?guó)的能源結(jié)構(gòu)中占有越來越重要的作用，而城市燃?xì)庖?guī)劃的主要目的是根據(jù)國(guó)家城市發(fā)展和建設(shè)方針、經(jīng)濟(jì)和技術(shù)政策、國(guó)民經(jīng)濟(jì)和社會(huì)發(fā)展的長(zhǎng)遠(yuǎn)計(jì)劃，以及城市所在地區(qū)的自然條件、歷史情況、現(xiàn)狀特點(diǎn)和建設(shè)條件，設(shè)計(jì)城市燃?xì)夤芫W(wǎng)的形式、走向以及壓力機(jī)制，設(shè)計(jì)燃?xì)鈭?chǎng)站的工藝流程、平面布置等，為城市的發(fā)展建設(shè)創(chuàng)造更好的條件。天然氣是一種清潔能源，使用天然氣作為城市燃?xì)?，?duì)改善城市污染問題以及推動(dòng)可持續(xù)化城市發(fā)展都有著非常積極的意義。該市城市規(guī)劃面積約為 2500 公頃，人口遠(yuǎn)期 2020 年約為 25 萬人。通過計(jì)算論證，確定 朝陽(yáng)縣 近期氣源為 LNG，遠(yuǎn)期氣源為管輸天然氣，供氣方式為儲(chǔ)配合一、中壓配氣，管網(wǎng)壓力級(jí)制為中壓一級(jí)管網(wǎng)系統(tǒng)，末端采用樓棟 (或用戶 )調(diào)壓的調(diào)壓方式，低壓入戶進(jìn)行供氣。 重慶大學(xué)本科學(xué)生畢業(yè)設(shè)計(jì)（論文） II ABSTRACT Being a widelyuse source of modern city living and production, city gas is playing a more and more important role in the source structure of our country. And the main purpose of city gas planning is to design the form and the trend of the pipe of city gas, the process and the general layout of the gas stations and so on, based on the national urban development and construction guidelines, economy and technical policies, the longterm plans of national economy and social development, as well as the the of natural and historical conditions, present characteristics and building conditions of the city, which can build a better conditon for urban development and construction. Following the national policies of energetically spread to use natural gas, this design confirms natural gas to be the source gas of the city. Natural gas is a kind of clean energy, use natural gas to be the source gas of a city has significant positive effects for improving the problems of urban pollution and promoting sustainable urban development. The main task of this design is to plan for the city gas of Lijiang City, Yunnan Province. The city39。 城市燃?xì)猬F(xiàn)狀 .......................................................................... 錯(cuò)誤 !未定義書簽。 2 設(shè)計(jì)依據(jù) ................................................................................................................. 6 設(shè)計(jì)主要依據(jù) ............................................................................................................ 7 主要的規(guī)范及 標(biāo)準(zhǔn) ..................................................................................................... 7 方案設(shè)計(jì)范圍 ............................................................................................................ 7 氣源設(shè)計(jì) ............................................................................................................. 7 輸配管網(wǎng)系統(tǒng)設(shè)計(jì) ............................................................................................... 7 規(guī)劃原則 ................................................................................................................... 7 設(shè)計(jì)原則 ....................................................................................... 錯(cuò)誤 !未定義書簽。 供氣規(guī)模及氣化范圍 ................................................................................................ 10 氣化范圍 ........................................................................................................... 10 氣源選擇及近、遠(yuǎn)期人口規(guī)模 ............................................................................. 10 城市居民氣化率 ................................................................................................. 11 用氣類型 ................................................................................................................. 11 4 燃?xì)獾奈锢砘瘜W(xué)性質(zhì) ........................................................................................ 12 混合氣體的平均分子量 ............................................................................................ 13 混合氣體的平均密度 ................................................................................................ 13 混合氣體的運(yùn)動(dòng)粘度 ................................................................................................ 13 混合氣體的低熱值 ................................................................................................... 14 混合氣體的臨界參數(shù) ................................................................................................ 14 混合氣體的物理化學(xué)參數(shù)表 ..................................................................................... 14 5 供氣規(guī)模 ............................................................................................................... 16 供氣原則及供氣對(duì)象 ................................................................................................ 16 供氣原則 ........................................................................................................... 16 供氣對(duì)象 ........................................................................................................... 16 各類用氣定額的論證及確定 ..................................................................................... 16 居民用氣定額的確定 .......................................................................................... 16 商業(yè)及公共建筑用氣定額的確定 ........................................................................ 17 工業(yè)用戶用氣定額的確定 ................................................................................... 17 CNG汽車用戶用氣定額的確定 ........................................................................... 18 未預(yù)見量 ........................................................................................................... 18 近、遠(yuǎn)期各類用戶年用氣量計(jì)算 .................................................... 錯(cuò)誤 !未定義書簽。 CNG汽車用戶年用氣量 ...................................................................................... 19 采暖用氣量 .....................................