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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戎希逸3943cad快捷键命令大全有吗? -
隗竹标13719971385 ______ 原发布者:台州市黄岩欣鼎信息技术有限公司 CAD快捷键_cad快捷键命令大全AutoCAD现已经成为广为流行的绘图工具.AutoCAD具有良好的用户界面,通过交互菜单或命令行方式便可以进行各种操作.在不断实践的过程中更好地掌握它的各...

戎希逸3943谁有机械图纸的符号大全 (直径,角度,弧度之类的) 最好还有图纸解析案例 -
隗竹标13719971385 ______ A 圆弧 L 直线 C 圆 I 插入块 B 创建块 H 图案填充 D 标注样式管理器 E 删除 F 圆角 G 群组 M 移动 O 偏移 P 平移 S 拉伸 W 外部块 V 视图对话框 X 分解 Z 显示缩放 T 多行文字 co 复制 MI 镜像 AR 阵列 RO 旋转 SC 比例 LE 引线管理器 EX 延伸 TR ...

戎希逸3943cad标注公差快捷键大全 - cad怎么标注±公差快捷键
隗竹标13719971385 ______ 1. cad怎么标注±公差快捷键1、首先打开cad图纸,下面以给直径30标注上下公差为例;2、快捷键输入ED,点击需要更改的尺寸即可进入编辑尺寸状态;3、将光标移动到...

戎希逸3943建筑图纸符号大全 -
隗竹标13719971385 ______ n表示抗扭筋,配2根直径16毫米的钢筋

戎希逸3943求助在土建工程制图时符号大全
隗竹标13719971385 ______ 这个跟你所用的字体有关的即使是同样名字的字体如果日期、版本不一样的话符号也是不好通用的一般情况下结构图中使用txt字体的情况下(大字体不限)%%p是正负零标高的那个正负符号%%c是直径符号%%130是一级钢筋符号%%131是二级钢筋%%132是三级钢筋

戎希逸3943求AutoCAD三维快捷命令大全?求AutoCAD三维快捷命令大
隗竹标13719971385 ______ 完整命令: 命令名称 命令缩写3DARRAY:创建三维阵列 3A 3DFACE:创建三维面 ... WE XATTACH:将外部参照附着到当前图形中 XA XBIND:将外部参照依赖符号绑...

戎希逸3943施工图开关符号大全(建筑施工图中符号大全)
隗竹标13719971385 ______ 1、建筑施工图范围很广,有建施、结施、设施…….2、单在设施里有给排水、强弱电、消防等,符号各类繁多,因此要表示大全是有一定难度的.3、现仅把建施中的符号供给如下:如想得到大全,请参阅:

戎希逸3943施工图上常用的符号有哪些?
隗竹标13719971385 ______ 施工图中的对称符号由对称线和两端的两对平行线组成对称线用细点划线表示,平行线用细实线表示.平行线长 度为6 ~ 10rnn,每对平行线的间距为2 ~3mm,对称线垂直平分 于两对平行线,两端超出平行线2. ~ 3 mm,连接符号施工图中,当构件详图的纵向较长、重复较多时,可省略重 复部分,用连接符号相连.连接符号用折断线表示所需连接的 部分,当两部分相距过远时,折断线两端靠图样一侧要标注大 写拉丁字母表示连接编号.两个被连接的图样要用相同的字 母编号.

戎希逸3943建筑电气施工图纸里的符号大全 -
隗竹标13719971385 ______ 【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.

戎希逸3943CAD中百分号是哪几个字母组合
隗竹标13719971385 ______ 直接shift+5