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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习季苗4453给排水中这些符号是什么意思 -
松歪相15666051708 ______ 从上至下,可挠曲橡胶接头(橡胶软接头),电动阀,Y型过滤器.

习季苗4453给排水不同的管材各用什么符号 -
松歪相15666051708 ______ 1、 镀锌铁管2、 铜管3、 不锈钢管4、 铝塑复合管5、 不锈钢复合管6、 PVC管7、PP-B(嵌段共聚聚丙烯)8、PP-C(改性共聚聚丙烯)管9、PP-R(无规共聚聚丙烯)管

习季苗4453建筑给排水图纸中NL代表什么 -
松歪相15666051708 ______ NL代表冷凝水立管. 在给排水图中,立管编号往往是拼音第一个字母加数字做成,例如wl-1:表示污水立管第一根,那么第二根就是wl-2.还有:fl-1(废水立管)、jl-1(给水立管)、xl-1(消火栓给水立管)、pl-1(喷淋给土工布东方水立管)...

习季苗4453xspl给排水中的符号表示什么意思? -
松歪相15666051708 ______ 给水管道-J,如果分高低区通常用首字母表示即高区-G,低区-D.排水管道-W,表示污水.也有-F,就是废水.很少见有用-P表示的.消火栓管道-XH.自动喷淋管道-Z或者-ZP.雨水管道-Y.采

习季苗4453怎样识别水电安装图纸上的图标 -
松歪相15666051708 ______ 如果你接触的范围广,我建议你买本水电安装方面的书籍来读,在这里一下子说出你需要的太难了,举例,这么多的符号,我怎么能一一列出来说明解释呢,书本上还近20页呢,难啊.你的师傅仅在行施工,但图纸不会全掌握的,还是靠自己啊. 给排水施工图图例中管道图例有27种; 管道附件有22种; 管道连接有12种; 管件有13种; 阀门有28种; 给水配件有9种; 卫生设备及水池15种; 小型给水排水构筑物11种; 给水排水设备13种; 仪表14种;

习季苗4453给排水符号ZL - SH,DTL - 1是什么意思 -
松歪相15666051708 ______ ZL,在所给的题目中是喷淋立管的意思,但是如果是标注在泵上面,表示的是 ZL-轴流泵; SH,应该是汉语拼音的缩写;包括DTL,也应该是;所以: 一般情况下,在图纸的前面,有总图,总图中对符号会加以说明和示例;如果没有给出甚至连指向(国家标准、行业标准甚至是设计院的院标)都没有的话,那说明设计不合格! 可以写一封澄清信函给设计院,要求澄清.

习季苗4453水电图纸符号
松歪相15666051708 ______ 电视是TV 图纸上面有备注的,右下角

习季苗4453给排水截图中,里面的一些符号什么意思呢.图中,1.NL - 1a凝结水立管就是空调滴下的凝结水嘛?2.正上方的A,C是啥意思呀?3.KD1,KD2是啥意思呢?4.楼... -
松歪相15666051708 ______[答案] 1、凝结水立管就是空调凝结水的管道; 2、A/C是指暖通空调专业; 3、KD是“开洞”的拼音缩写,指的是建筑上为了机电管道穿墙预留的孔洞; 4、楼梯上的数字指的是台阶数目; 5、你在建筑底图上看到强电、弱电指的是给电气专业的管井间,...

习季苗4453给排水中zl - w1是什么符号 -
松歪相15666051708 ______ 如果设计院没乱便符号的话,就是中水立管-W1管道.实际就是给水管.

习季苗4453给排水符号WL - 42是什么意思啊?望之情人士透露,谢谢 -
松歪相15666051708 ______ 污水立管42 一般编号是从左往右,从下往上的顺序编的.YL-1 就是雨水立管1 ,XHL-1就是消防立管1