Nowadays, in order to purify the indoor environment and ensure the health of breathing, many friends will choose to install the fresh air system ventilation duct. The installation of the pipe really brings more convenience to our life. It not only provides us with fresh air, but also adjusts the indoor humidity. In order to help you better use the ventilation duct of the fresh air system, we specially arrange for you Installation and cleaning methods for your reference.

一、新风系统通风管道的安装：

1、 Installation of ventilation duct of fresh air system:

1、要使设计的新风系统通风管道达到较低的风阻和噪音，新风输出口、排风输出口和主机之间的连接都应该采取安装消声器或用软连接来连接。

1. In order to reduce the wind resistance and noise of the ventilation duct of the fresh air system, the connection between the fresh air outlet, exhaust outlet and the main engine should be installed with muffler or connected with soft connection.

2、对于新风系统主机安装在吊顶上，应该在吊杆上安装减震器。

2. For the main unit of fresh air system installed on the ceiling, shock absorber should be installed on the suspender.

3、新风系统主机、金属风管都应该做保温处理。

3. The main engine and metal air duct of fresh air system should be insulated.

新风系统风口的位置选择：原则上要均匀

Location selection of air outlet of fresh air system: uniform in principle

4、新风系统风口的位置选择：原则上要均匀，保障室内的新风量能够达到平衡。不宜开风口处：风管的尾部、转弯处和变径处。

4. The location selection of fresh air system outlet: in principle, it should be uniform to ensure that the indoor fresh air volume can reach balance. Not suitable for tuyere opening: the tail of the air duct, turning and reducing.

5、新风系统风阀的安装：近端与末端处主风管与支管交接处需要安装风量调节阀，管道系统中间可以使用气流导流片或风量调节阀。

5. Installation of air valve in fresh air system: air volume regulating valve shall be installed at the junction of main air duct and branch pipe at near end and end, and air guide vane or air volume regulating valve can be used in the middle of pipeline system.

6、新风系统通风管道之间相连接时应使用法兰相连接，且应加橡胶填充条。

6. When the ventilation pipes of fresh air system are connected, they should be connected by flange, and rubber filler strip should be added.

7、新风系统主机用于隐蔽安装时，需要预留维护检修口。

7. When the main machine of fresh air system is used for concealed installation, it is necessary to reserve maintenance access.

二、新风系统通风管道的清洗：

2、 Cleaning of ventilation duct of fresh air system:

1、用装有摄相头的机器人进入管道拍摄记录风管内污染状况；根据住宅的建筑图纸，会同客户详细制定管道清洗施工方案；

1. The robot equipped with camera head is used to enter the pipeline to shoot and record the pollution condition in the air duct; according to the building drawings of the residence, the construction scheme of pipeline cleaning is formulated in detail with the customer;

2、在新风系统通风管道适当部位开施工孔，在两开孔位置外侧用封堵气囊堵住管道两端；用软管将集尘器连接到其中一个施工孔，使风管内产生负压气流，让灰尘与污物被吸入集尘器内；选择适当的清洗毛刷，用管道清洗机器人或软轴毛刷进行管道清洗；清洗以后，由机器人拍照记录，确认清洗质量；

2. Open construction holes at appropriate parts of ventilation pipes of fresh air system, and block both ends of pipes with blocking air bags outside the two opening positions; connect the dust collector to one of the construction holes with hose, so as to generate negative pressure air flow in the air duct, so that dust and dirt can be inhaled into the dust collector; select appropriate cleaning brush, and use pipeline cleaning robot or flexible shaft brush to clean the pipeline; after cleaning, the dust collector is connected to one of the construction holes The robot takes photos and records to confirm the cleaning quality;

3、当清洗质量被认可后，在清洗过的管道内喷洒消毒剂；清理、移动清洗设备到下一段管道清洗；用相同材料重新封闭开口处；清理修复风管被损保湿层；清洁场地，以保障不影响下一步工作。

3. After the cleaning quality is approved, spray disinfectant in the cleaned pipeline; clean and move the cleaning equipment to the next section of pipeline; re seal the opening with the same material; clean and repair the damaged moisture layer of air duct; clean the site to ensure that the next step work will not be affected.

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