【正文】 應(yīng)星還繪制了“蜀省井鹽圖”附上，十分具體形象。該書還詳述了幾口有名的天然氣井：“火之極旺者曰海順井，可燒鍋七百余口，水、火、油三者并出；曰磨子井，水、油兩種經(jīng)二、三年而涸，火可燒鍋四百口，經(jīng)二十余年猶旺也。食貨》載：“端拱元年（公元 988 年）十二月三日，滬州言：滬州縣鹽井水竭，令人入井視之，下有吼聲如雷，火焰突出，被焚死者八人” 。蜀志》中記述了“有火井，夜時光映上昭。諸葛丞相往視之，后火轉(zhuǎn)盛。關(guān)于火井，較早且較確鑿的記載要數(shù)東漢史學(xué)家班固（公元 32—92 年）所著《漢書》 ，書中記載了西漢宣帝神爵元年（公元前 61 年） “祠天封苑火井于鴻門。所以，天然氣作為城鎮(zhèn)燃?xì)廨^之其他礦物燃料，如在氣體質(zhì)量、輸送使用、環(huán)境保護(hù)、減少大氣污染等方面不有不能相比的優(yōu)越之處。畢業(yè)設(shè)計 1 燃?xì)庠O(shè)計說明畢業(yè)設(shè)計第 1 章 緒論 ...............................................................................................................................................................6 城市燃?xì)獾闹匾?........................................................................................................................................................6 我國天然氣的發(fā)展概況 ............................................................................................................................................6 我國古代歷史上對天然氣的考察 .............................................................................................................6 .............................................................................................................9 中國天然氣產(chǎn)業(yè)現(xiàn)狀 ........................................................................................................................................9 我國天然氣開發(fā)利用現(xiàn)狀 ...........................................................................................................................14 我國天然氣行業(yè)未來的展望 .......................................................................................................................15 影響中國天然氣產(chǎn)業(yè)發(fā)展的因素 ............................................................................................................17 中國天然氣產(chǎn)業(yè)發(fā)展戰(zhàn)略措施 ................................................................................................................18 城市燃?xì)庠O(shè)計與規(guī)劃的原則和任務(wù) ...............................................................................................................22 城市燃?xì)庠O(shè)計與規(guī)劃的目的 .......................................................................................................................22 城市燃?xì)庠O(shè)計與規(guī)劃的原則 ......................................................................................................................22 城市燃?xì)庠O(shè)計與規(guī)劃的內(nèi)容 ......................................................................................................................23 城市燃?xì)庠O(shè)計與規(guī)劃的任務(wù) ......................................................................................................................23第 2 章 銅川市新區(qū)概況 .....................................................................................................................................24 城市簡介 .........................................................................................................................................................24 城市燃料資源和能源供應(yīng)當(dāng)有關(guān)資料 ...........................................................................................................25 天然氣及其基本性質(zhì) ................................................................................................................................................26第 3 章 燃?xì)馕锢?、化學(xué)性質(zhì)的確定 ............................................................................................................28 混合氣體的平均分子量（M） ..........................................................................................................................28 混合氣體的平均密度和相對密度 ....................................................................................................................28 混合氣體的平均密度 ......................................................................................................................................28 混合氣體的相對密度 ......................................................................................................................................28 混合氣體的臨界參數(shù)（標(biāo)準(zhǔn)狀態(tài)下） ..........................................................................................................29 臨界溫度 ................................................................................................................................................................29畢業(yè)設(shè)計 2 臨界壓力 ................................................................................................................................................................29 混合氣體的運動粘度 ...............................................................................................................................................29 混合物的低熱值 ..........................................................................................................................................................30第 4 章 各類用戶用氣量的計算 ......................................................................................................................31 用氣量計算的原則 ....................................................................................................................................................31 設(shè)計用氣量 ...........................................................................................................................................................31 各種用戶的燃?xì)庠O(shè)計用氣量 ......................................................................................................................31 居民生活和商業(yè)的用氣量指標(biāo). ...............................................................................................................31 工業(yè)企業(yè)用氣量指標(biāo) ......................................................................................................................................31 各類用戶的年用氣量 ...............................................................................................................................................31 居民生活年用氣量 ...........................................................................................................................................31 小型公共建筑用氣量 ......................................................................................................................................32 大型公共建筑用氣量 .............................................