【正文】 .........................................35 年總用氣量 ...........................................................................................................................................................35 各類用戶的月用氣量 ...............................................................................................................................................35 居民生活和小型公共建筑月用氣量 ......................................................................................................35 大型公共建筑和工業(yè)企業(yè)月用氣量 ......................................................................................................35 其他月用氣量 .......................................................................................................................................................35 最大月用氣量 ......................................................................................................................................................36 各類用戶的日用氣量 ...............................................................................................................................................36 居民生活和小型公共建筑日用氣量 ......................................................................................................36 大型公共建筑和工業(yè)企業(yè)日用氣量 ......................................................................................................36 其他用氣量 ...........................................................................................................................................................36 日最大用氣量 ......................................................................................................................................................36畢業(yè)設計 3 各類用戶的小時用氣量 ..........................................................................................................................................36 居民生活和小型公建筑小時用氣量 ......................................................................................................36 大型公共建筑和工業(yè)小時用氣量 ...........................................................................................................37 其他小時用氣量 ................................................................................................................................................37 最大小時用氣量 ................................................................................................................................................37第 5 章 燃氣輸配系統(tǒng)的供需平衡 ...........................................................................................................................38 供需平衡方法 ...............................................................................................................................................................38 改變氣源的生產能力和設置機動氣源 ................................................................................................38 利用緩沖用戶和發(fā)揮調度作用 ................................................................................................................38 利用儲氣設施 ......................................................................................................................................................38 本市燃氣系統(tǒng)的供需平衡方案 ..........................................................................................................................39 季節(jié)調峰和月調峰 ...........................................................................................................................................39 日調峰 ......................................................................................................................................................................39 小時調峰 ................................................................................................................................................................39第 6 章 燃氣管網系統(tǒng)選擇和管線的布置原則 ...................................................................................................43 燃氣管網系統(tǒng)的選擇 ...............................................................................................................................................43 城市燃氣輸配系統(tǒng)的組成 ...........................................................................................................................43 城市燃氣管網系統(tǒng) ...........................................................................................................................................43 采用不同壓力級制的原因 ........................................................................................................................43 燃氣管網系統(tǒng)的選擇 ...................................................................................................................................44 銅川市新區(qū)燃氣輸配系統(tǒng)規(guī)劃方案 ............................................................................................................44 城市燃氣管道的布線原則 ...........................................................................................................................44 布線依據(jù) ................................................................................................................................................................44 中壓管網的布置 ................................................................................................................................................45 低壓管網的布置 ................................................................................................................................................45第 7 章 燃氣管網水力計算 ...........................................................................................................................................46畢業(yè)設計 4 中壓環(huán)網的水力計算（手算平差） ...............................................................................................................46 中壓管網的計算步驟 ......................................................................................................................................46 計算過程 ......................................................................................................................................................