1、消火栓干管

1, fire hydrant dry tube

2、立管

2, riser

3、支管

3.

4、消火栓箱（分单栓箱和双栓箱需看图而定）

4, hydrant box (single bolt box and double bolt box need to be shown).

5、阀门消防工程一般用蝶阀

5, valve fire engineering general use butterfly valve

6、穿楼板套管

6. The casing pipe

7、管道支架

7. Pipe support

8、消防水泵结合器

8. Fire pump combiner

9、管道除锈刷油

9, pipeline to remove rust and brush oil

10、有的工程屋顶设试验消火栓，一个试验消火栓就带压力表一个，泄水阀一个

10. Some projects have fire hydrants on the roof. A fire hydrant is equipped with a pressure gauge.

（一）消火栓干管的计算

(1) calculation of the dry tube of the fire hydrant

1、消火栓干管入口处数水泵结合器、阀门（规格与管子的规格相同）

1. The number of inlet and outlet of fire hydrant pipes is the same as that of valves.

2、消火栓干管长度=1.5米+1.2（±0以下埋深1.2米）+平面的长度（从图上量出的）

2, hydrant dry tube length =1.5 m +1.2 (+ 0 below buried depth 1.2 m) + plane length (measured from the map)

（二）消火栓立管的计算

(two) calculation of the erect tube of fire hydrant

1、立管最底端都有一个蝶阀（规格与立管规格相同）

1. There is a butterfly valve at the bottom end of the riser (the same size as the riser).

2、立管的长度=每一层的层高*层数（从系统图上查标高和层数可得）

2, the length of the riser = the height of each layer * the number of layers (from the system diagram to check the height and the number of layers available).

3、穿楼板套管（套管规格与立管规格相同）

3. Wear the floor bushing (the size of the bushing is the same as that of the riser).

（三）消火栓支管的计算

(three) calculation of fire hydrant branch pipe

支管的长度=在平面图上从立管（在平面图上是圆圈）量至配电箱的尺寸

The length of the branch is measured on the plane plan from the riser (circle on the plan) to the size of the distribution box.

（四）数消火栓箱的数量

(four) number of fire hydrant boxes

（注意看是单栓还是双栓？）看屋顶上是否有试验栓？如有试验栓上都带有一个压力表和一个泄水阀。

(attention is a single or double bolt?) Do you see if there is a test bolt on the roof? If there is a test plug with a pressure gauge and a drain valve.

（五）消防管道的除锈、刷油

(five) rust removal and oil brush of fire pipe

（六）钢筋支架计算与前面的支架计算方法相同

(six) the calculation of the reinforcement bracket is the same as that of the front bracket.