泡沫喷头和泡沫/水两用喷头是产生和喷射空气泡沫的灭火部件，主要用于低倍数泡沫喷淋系统。下面川消小编来讲讲泡沫喷头工作原理及安装要点。

Foam sprinklers and foam/water dual purpose sprinklers are professional fire extinguishing components that generate and spray air foam, mainly used for low expansion foam spray systems. Now let's talk about the working principle and installation points of foam nozzle.

1.工作原理

1. Working principle

空气泡沫喷头与固定式泡沫灭火系统配套使用，泡沫喷头所需泡沫混合液由泡沫比例混合装置提供，适用于3％或8％型低倍数泡沫混合液。

The air foam nozzle is used together with the fixed foam extinguishing system. The foam mixture required by the foam nozzle is provided by the foam proportioning device, and is suitable for 3% or 8% low expansion foam mixture.

当泡沫混合液经由管道输送泡沫喷头，在喷头内部混合液与其吸入的空气充分混合，形成扩散的雾化射流，触及喷头内壁、泡沫击散器等形成涡流，并因此而发泡，成为低倍数泡沫，再经伞型挡水盘，在其周围的保护面积内均匀的喷洒泡沫，覆盖在燃烧物体的表面，窒息、冷却从而扑灭火灾。

When the foam mixture is transported to the foam nozzle through the pipeline, the mixture inside the nozzle is fully mixed with the air it inhales to form a diffused atomized jet, which touches the inner wall of the nozzle, the foam diffuser, etc. to form a vortex, and thus foams to form a low expansion foam. Then, through the umbrella shaped water deflector, evenly spray foam on the surrounding protected area to cover the surface of the burning object, asphyxiate and cool to extinguish the fire.

2.安装

2. Installation

（1）下垂式泡沫喷头安装时伞形挡水盘朝下，直立式泡沫喷头安装时伞形挡水盘朝上。

(1) The umbrella shaped water deflector shall be downward when installing the sagging foam sprinkler, and upward when installing the vertical foam sprinkler.

（2）安装泡沫喷头的管道进口孔径不得小于喷头进口尺寸，根据工程需要，采取防止异物堵塞喷头的措施。

(2) The inlet diameter of the pipe where foam sprinklers are installed shall not be less than the inlet size of the sprinklers. According to the needs of the project, measures shall be taken to prevent foreign matters from blocking the sprinklers.

（3）喷头应安装在不会受到机械损伤的地方，在安装前应确认喷头规格型号、连接尺寸等参数符合要求。

(3) The nozzle shall be installed at a place free from mechanical damage. Before installation, it shall be confirmed that the specifications, models, connection dimensions and other parameters of the nozzle meet the requirements.

川消小编所讲解的泡沫喷头工作原理及安装要点这一问题就到这里了，您对此可以作为参考信息使用，更多相关内容就来我们网站http://www.cx-fire.com进行咨询！

This is the end of the question about the working principle and installation points of the foam nozzle explained by Chuanxiao Xiaobian. You can use this as reference information. More relevant information will come to our website http://www.cx-fire.com Consult!