***燃气工程设计
摘要
随着社会经济的发展，燃气越来越受到用户的认可，燃气的应用越来越被重视。燃气输配系统中小区燃气管网的设计更是成为城市建设中的重要组成部分。本工程为大连市**三区燃气工程设计，根据大连市的城市概况、气源状况、交通状况，确定本小区的供气方案、进行管网的布置。本设计中所选择的气源为人工煤气，并且采用低压进户的方式。本设计内容主要包括:绘制小区燃气管道的总平面图、室内平面图及系统图；对管道设计中使用的灶具、热水器、燃气表及调压箱等设备进行了设备选型；根据工程实际对主要设备及附件选型，进行燃气管网水力计算，确定适宜的管径，并对该工程提出施工及验收要求。
关键词：人工煤气；室内设计；庭院设计；管材；水力计算
The Design of Gas Engineering for Lucheng city
of the third sub-region in Dalian
ABSTRACT
With the wide use of the city gas, which is approved more and more by customers, and the application of gas is taken seriously more and more. The design of gas pipeline network is becoming the city an important part of the construction on transmission and distribution system. This project is the design of gas engineering for Xin Xing Lu Cheng section in Da lian. According to the general situation, climate condition, the traffic of the Da Lian, to determine the area of gas supply scheme and dispose the layout of pipeline network. The gas source of the design is the manufactured gas and the design adopts the low-pressure inlet. The primary contents of this design includes: drawing the general layout of the gas pipeline, a interior of layout plan and system diagram; and select the using equipments of the pipeline cooking stove, water- heater, gas meter, voltage regulation box and other equipments; according to engineering of major equipment and accessories selection, work to the hydraulic calculations of gas pipe network, determine the appropriate diameter, and make the project construction and acceptance requirements.
Keywords: manufactured gas; indoor design; courtyard design; pipe material; hydraulic
calculation
目录
摘要 ........................................................... I
ABSTRACT ...................................................... II 目录 .......................................................... II 1绪论 ......................................................... 1
1.1设计背景及目的 ...................................................... 1 1.1.1设计背景 ......................................................... 1 1.1.2本设计的目的 ..................................................... 1 1.2国内外燃气工程状况 .................................................. 2 1.2.1国外燃气工程状况 ................................................. 2 1.2.2国内燃气工程状况 ................................................. 3 1.3本设计的内容 ........................................................ 3
2 室内燃气管道设计与计算 ....................................... 4
2.1 室内燃气具的选择和布置 .............................................. 4 2.1.1 燃气灶的选择和布置 ............................................... 4 2.1.2 燃气表的选择和布置 ............................................... 5 2.2 室内燃气管道设计 .................................................... 5 2.2.1室内燃气管道管材的选择 ........................................... 5 2.2.2室内燃气管道安装设计 ............................................. 6 2.2.3室内燃气管道水力计算 ............................................. 7 2.3燃气引入管设计 ..................................................... 31
3庭院燃气管道设计与计算 ...................................... 32
3.1庭院燃气管道设计 ................................................... 32 3.1.1 燃气管道的布线依据 .............................................. 32 3.1.2 庭院燃气管道管材的选择 .......................................... 33 3.1.3 地下燃气管道的布置 .............................................. 34 3.2 庭院燃气管道水力计算 ............................................... 35
4管网安装检验、试压与验收 .................................... 44
4.1室内燃气管道和灶具的安装检验 ....................................... 44 4.1.1室内燃气管道的检验 .............................................. 44 4.1.2燃具安装的检验 .................................................. 44 4.2试压与验收 ......................................................... 44 4.2.1室内管道验收 .................................................... 45 4.2.2庭院管道试压与验收 .............................................. 45
结 论 ......................................................... 47