施工前的准备工作：
Preparation before construction:
1.各种安装材料应有出厂合格证或质量鉴定文件及产品清单。
1. All installation materials shall have factory certificate or quality identification document and product list.
2.成品风管不允许有变形、畸变、开裂、孔洞、法兰脱落、铆接泄漏、螺栓孔泄漏等缺陷3.安装好的阀体、风口等部件要检查调节装置是否灵活，消声器、油漆层是否损坏。
2. The finished air duct shall be free of deformation, distortion, cracking, holes, flange falling off, riveting leakage, bolt hole leakage and other defects. 3. The installed valve body, air outlet and other components shall be checked for flexibility of the regulating device, and whether the muffler and paint layer are damaged.
4.安装所用材料：螺栓、螺母、垫圈等辅助材料应符合产品质量要求。
4. Materials used for installation: bolts, nuts, washers and other auxiliary materials shall meet the product quality requirements.
5.检查现场留孔尺寸、位置及风管尺寸是否符合图纸要求，避免无效安装。
5. Check whether the size and position of the reserved hole on site and the size of the air duct meet the drawing requirements to avoid invalid installation.
通风管道风管安装规定：
Regulations on installation of ventilation duct:
1.严禁其他管线穿过风管。
1. It is forbidden for other pipelines to pass through the air duct.
2.安装在易燃易爆环境中的风管应接地良好，穿过生活区或生产区的风管安装严密，不得配备风管接口。
2. The air duct installed in flammable and explosive environment shall be well grounded. The air duct passing through the living area or production area shall be installed tightly, and the air duct interface shall not be equipped.
3.室外垂直风管的固定不得与避雷针或房屋防雷设施连接。
3. The fixing of outdoor vertical air duct shall not be connected with lightning rod or house lightning protection facilities.
4.风管安装符合下列技术要求①与通风设备及配件连接风管的配置，不得减少其连接位置的连接管。
4. The installation of air duct shall meet the following technical requirements ① the configuration of air duct connected with ventilation equipment and accessories shall not reduce the connecting pipe at its connecting position.
②吊架不能设置在风口、风阀、检查门及自控机构处，不得固定在法兰上，以免风管变形影响风管功能。
② The hanger shall not be set at the air outlet, air valve, inspection door and automatic control mechanism, and shall not be fixed on the flange, so as to prevent the deformation of the air duct from affecting the function of the air duct.
③吊架安装符合相应的安装规定。悬吊风管和部件应设有防止摆动的固定点，如固定支架和支架。固定点的设置位置和数量应根据系统情况而定④法兰垫料及厚度应根据不同气温选择。
③ The hanger installation shall comply with the corresponding installation regulations. Suspension ducts and components shall be provided with fixed points to prevent swing, such as fixed supports and supports. The setting position and quantity of fixed points shall be determined according to the system conditions ④ the flange gasket and thickness shall be selected according to different temperatures.
⑤风管及部件穿过墙壁、屋顶时，应设置防雨罩。穿过屋顶的风管超过1.5m时，应留出电缆。电缆应镀锌或布线。电缆不应固定在风管法兰上，不应拉在避雷针或防雷网上。
⑤ When the air duct and components pass through the wall and roof, a rain cover shall be set. Cables shall be reserved when the air duct passing through the roof exceeds 1.5m. Cables shall be galvanized or wired. The cable shall not be fixed on the air duct flange and shall not be pulled on the lightning rod or lightning protection network.
⑥柔性短管的安装应弹性适中，不扭曲。柔性金属或非金属软风管长度不应超过2m，不得有死弯和塌陷。
⑥ The flexible short pipe shall be installed with moderate elasticity and no distortion. The length of flexible metal or non-metal flexible air duct shall not exceed 2m, and there shall be no dead bend and collapse.
⑦保温风管的支吊架应位于保温层外，保温层不应损坏。
⑦ The supports and hangers of insulated air duct shall be located outside the insulation layer, and the insulation layer shall not be damaged.
通风管道通风管道按用途区分1.净化空调系统风管：镀锌板、不锈钢；（禁止使用中可能造成粉尘污染的玻璃钢、复合材料2.空调系统风管：镀锌板、彩钢保温板；（可采用玻璃钢、复合材料3.环控系统风管：镀锌板、不锈钢；（塑料、玻璃钢、复合材料均可使用4.工业通风系统统一风管：钢板、镀锌板；（可采用塑料、玻璃钢、复合材料）；注：玻璃钢风管可是无机。5.特殊使用场合风管：矿用胶带风管、矿用塑料风管。
Ventilation duct the ventilation duct is divided according to the purpose. 1. Air duct of purified air conditioning system: galvanized sheet and stainless steel; (it is forbidden to use FRP and composite materials that may cause dust pollution. 2. Air duct of air conditioning system: galvanized plate and color steel insulation plate; (FRP and composite materials can be used. 3. Air duct of environmental control system: galvanized plate and stainless steel; (plastic, FRP and composite materials can be used. 4. Unified air duct of industrial ventilation system: steel plate and galvanized plate; (plastic, FRP and composite materials can be used); note: FRP air duct can be inorganic. 5. Air duct for special occasions: mining belt air duct and mining plastic air duct.
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