线型及其含义：

比例：

水、汽管道代号：

工艺管道施工图常用图例：

水、汽管道阀门和附件图例：

给排水、采暖常用图例：

通风空调工程常用图例：

风道代号：

风道、阀门及附件图例：

风口和附件代号：

暖通空调设备图例：

调控装置及仪表图例：

各种执行机构可与风阀、水阀组合 表示相应功能的控制阀门。

消防工程基本图形符号：

消防工程辅助符号：

消防工程灭火器符号：

消防管路及配件符号：

消防工程固定灭火器系统符号：

消防工程灭火设备安装处符号：

消防设施：

消防工程自动报警设备符号：

管道图例：

管道附件：

管道连接：

管件：

常见阀门：

给水配件：

小型给水排水构筑物：

给水排水设备：

仪表：

管道和设备布置平面图、剖面图示例：

管道和设备布置平面图应按假象除去上层板后俯视规则绘制，其相应的垂直剖面图应在平面图中表明剖切符号。

标准层平面图

平、剖面示例

平面图、剖面图索引符号的画法：

平面图、剖面图中的局部需另绘详图时，应在平、剖面图上标注索引符号。索引符号的画法见下图。

索引符号的画法

内视符号画法：

当表示局部位置的相互关系，在平面图上应标注内视符号。

内视符号画法

系统编号：

1、一个工程设计中同时有供暖、通风、空调等两个及以上的不同系统时，应进行系统编号。

2、暖通空调系统编号、入口编号，应由系统代号和顺序号组成。

3、系统代号用大写拉丁字母表示，顺序号用阿拉伯数字表示。当一个系统出现分支时，可采用下图的画法。

系统代号

立管号的画法

竖向布置的垂直管道系统，应标注立管号，在不一致引起误解时，可只标注序号，但应与建筑轴线编号有明显区别。

立管号的画法

管道相对标高的画法：

1、在无法标注垂直尺寸的图样中，应标注标高。标高应以m为单位，并应精确到cm或mm。

2、标高符号应以直角等腰三角形表示。当面标准层较多时，可只标注与本层楼（地）板面的相对标高。

3、水、汽管道所标高未予说明时，应表示为管中心标高。

4、水、汽管道标注管道外底或顶标高时，应在数字前加“底”或“顶”字样。

5、矩形风管所注标高应表示管底标高；圆形风管所注标高应表示管中心标高。当不采用此方法标注时，应进行说明。

6、平面图中无坡度要求的管道标高可标注在管道截面尺寸后的括号内。必要时，应在标高数字前加“底”或“顶”的字样。

相对标高的画法

管道截面尺寸的标注符号及画法：

1、低压流体输送用焊接管道规格应标注公称通径或压力。公称通径的标记应由字母“DN”后跟一个以亳米表示的数值组成；公称压力的代号应为“PN”。

2、输送流体用无缝钢管、螺旋缝或直缝焊接钢管、铜管、不锈钢管，当需要注明外径和壁厚时，应用“D（或Φ）外径×壁厚”表示。在不致引起误解时，也可采用公称通径表示。

3、塑料管外径应用“de”表示。

4、圆形风管的截面定型尺寸应以直径“Φ”表示，单位应为mm.

5、矩形风管（风道）的截面定型尺寸应以“A×B”表示。“A”应为该视图投影面的边长尺寸，“B”应为另一边尺雨。A、B单位均应为mm。

6、水平管道的规格宜标注在管道的上方；竖向管道的规格宜标注在管道的左侧。双线表示的管道，其规格可标注在管道轮廓线内。

管道截面尺寸的画法

多条管线的规格标注方法：

多条管线规格的画法

风口、散流器表示方法：

风口、散流器的表示方法

定位尺寸的表示方法：

定位尺寸的表示方式

单线管道转向的画法：

单线管道转向的画法

双线管道转向的画法：

双线管道转向的画法

单线管道分支的画法：

单线管道分支的画法

双线管道分支的画法：

双线管道分支的画法

送风管转向的画法：

送风管转向的画法

回风管转向的画法：

管道断开的画法

平面图、剖视图中管道因重叠、密集需断开时，应采用断开画法。

管道断开的画法

管道在本图中断的画法：

管道在本图中断，转至其他图面表示（或由其他图面引来）时，应注明转至（或来自的）的图纸编号。

管道在本图中断的画法

管道交叉的画法：

管道交叉的画法

管道跨越的画法：

管道跨越的画法

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向育扶2571cad里关于标注的符号 -
游申肥19720408776 ______ 1、在CAD里面没有直接标注螺纹的标注.但如果你修改一下标注样式,倒是可以的.觉得很麻烦的话,就先标个普通标注,再修改. 例如,如果要标个M10,你就先标个10的普通标注,再按CTRL+1,在主单位的标注前缀里输入M,M10就自动生成了.如果需要把其他的普通标注修改成螺纹,就用格式刷修改就行了. 2、直径的符号Φ在标注直径的时候是可以自动生成的.但如果你不是用标注直径的命令,而是用其他命令标的,可以按CTRL+1里面修改,具体如螺纹的修改一致.需要补充的是Φ在CAD里面有一个代码,那就是%%C.

向育扶2571建筑工程CAD制图符号
游申肥19720408776 ______ 代表开洞.是通透的洞口,平面、立面都是一样的

向育扶2571建筑图纸常用符号 -
游申肥19720408776 ______ @表示钢筋间距 Φ表示钢筋型号,CAD快捷键一览 创建三维阵列 3A 创建三维面 3F 在三维空间创建由直线段组成的多段线 3P 在二维和三维空间中将某对象与其他对象对齐 AL 加载 AutoLISP、ADS 和 ARX 应用程序 AP 创建圆弧 A 计算对象或...

向育扶2571CAD中画电气图的符号大全 -
游申肥19720408776 ______ 用电气制图软件,都有. http://www.cr173.com/soft/28014.html

向育扶2571CAD图纸钢筋符号
游申肥19720408776 ______ 这是个常见的问题,首先你要了解,不是你的字体库中有某个字体,图中的文字就显示成那个字体,这需要你自己调整,有三个办法: 1、选中你要修改的文字符号,用对象特性(有的双击也可以修改样式),将文字样式栏修改成你所要改成的样式; 2、直接设置你所要修改成的目标样式为当前样式,然后用text命令输入一段文字,再用格式刷将其他文字调整成目标样式. 3、在其他图中找到目标样式,拷贝一个过来,再用格式刷修改你要改的文字. 1和2需要你知道目标样式的名称,这个对于字体库比较多的用户是很难的,方法3就需要你能找得到现成的目标样式的文字,根据你自身的情况选择以上方法.

向育扶2571CAD建筑工程图的主要符号有哪些? -
游申肥19720408776 ______ http://www.thscad.com/web/download.html把这个软件下载下来(完全免费的),安装好后在左边工具栏找到“文表符号”,那里面还是建筑符号,“尺寸标注”里面也有

向育扶2571建筑电气施工图纸里的符号大全 -
游申肥19720408776 ______ 【1】建筑电气施工图纸符号RD多媒体箱、TP电话插座. 【2】电器施工图:《建筑电气施工图识图》共分为7章,分别介绍了建筑电气工程图识图基本知识、建筑变配电工程图识读、动力及照明施工图识读、防雷接地工程图识读、建筑设备电气控制工程图识读、建筑弱电系统图识读以及建筑电气施工图实例. 《建筑电气施工图识图》深入讨论了设计原理和识图方法,分析具体.针对性强,内容精练,并采用了大量具有代表性的工程实例,图文并茂,浅显易懂,便于读者理解、掌握和应用.《建筑电气施工图识图》可用于高等院校相关专业的教学参考书,也可供从事建筑电气设计、工程施工、管理维修的人员使用.

向育扶2571CAD图纸符号 -
游申肥19720408776 ______ 小旗子是现场安装焊缝,100是角焊缝的焊脚尺寸

向育扶2571cad全跳动符号 -
游申肥19720408776 ______ CAD系统中有一种全跳动符号,也叫“周期符号”,用于表示持续的时间段,如一分钟内持续的抖动或者一小时内持续的抖动.全跳动符号可以帮助更好地表达动态过程,从而让图形更加清晰明了.

向育扶2571cad中特殊符号的输入 -
游申肥19720408776 ______ 我们知道表示直径的“Ф”、表示地平面的“±”、标注度符号“°”都可以用控制码%%C、%%P、%%D来输入,但是如要输入其他符号怎么办呢?我们可以通过“字符映射表”来输入特殊字符,具体步骤如下:1)输入“MText”命令,然后建...