通风管道安装程序及注意事项

发布人：http://www.sftfgd.com   发布时间：2024-04-06 18:03:09

一、通风管道在安装时的注意事项：

1、 Precautions for installing ventilation ducts:

（1）当风管与风机连接时，应在进出风口处加软接头，其软接头的断面尺寸应与风机进出风口一致。软管接头一般可采用帆布、人造革等材料，软管长度不宜小于200，松紧度应适宜，柔性软管可缓冲风机的振动。

(1) When connecting the air duct to the fan, a soft joint should be added at the inlet and outlet, and the cross-sectional size of the soft joint should be consistent with the inlet and outlet of the fan. The hose joint can generally be made of materials such as canvas or synthetic leather. The length of the hose should not be less than 200, and the tightness should be appropriate. The flexible hose can buffer the vibration of the fan.

（2）当风道与除尘设备、加热设备等连接前，应待设备安装完毕后，按实际测绘的图纸进行预制和安装。

(2) Before connecting the air duct to dust removal equipment, heating equipment, etc., prefabrication and installation should be carried out according to the actual surveyed drawings after the equipment installation is completed.

（3）风道安装时，进、出风日宜在风道预制时开出洞口，如需在安装完毕的风道上现开风口，其接口处应严密。

(3) When installing the air duct, it is advisable to open openings during the prefabrication of the air duct for the inlet and outlet days. If it is necessary to open openings on the installed air duct, the interface should be tight.

（4）当输送含凝结水或含湿量较大的气体时，其水平管道宜设有坡度，并在低点处接排水管。安装时风道底部不宜出现纵向接缝，对底部有接缝处应进行密封处理。

(4) When transporting gas containing condensed water or high humidity, the horizontal pipeline should have a slope and a drainage pipe should be connected at the low point. During installation, longitudinal joints should not appear at the bottom of the air duct, and sealing treatment should be applied to the joints at the bottom.

（5）对输送易燃、易爆气体的钢板风道，在风道连接法兰处应安装跨接线，并与静电接地网连接。

(5) For steel plate air ducts transporting flammable and explosive gases, jumper wires should be installed at the flange connection of the duct and connected to the electrostatic grounding grid.

二、通风管道安装程序：

2、 Ventilation duct installation procedure:

（1）风管组装：当风管较短时，可一次在地面组装而成，当风管较长时，可视安装场地的情况，在地面分段组装。组装时应尽量调整风道的中心度和水平度，避免风管扭曲或上下起波，左右摆龙，每段风道不宜超过10m.组装时，垫片应垫平，法兰螺栓应均匀拧紧，螺母帽均朝向同一方向。

(1) Air duct assembly: When the air duct is short, it can be assembled on the ground in one go. When the air duct is long, it can be assembled in segments on the ground depending on the installation site. During assembly, the centrality and levelness of the air duct should be adjusted as much as possible to avoid twisting or rippling of the duct. The length of each section of the air duct should not exceed 10 meters, and the gasket should be leveled. The flange bolts should be tightened evenly, and the nut caps should be facing in the same direction.

（2）风管就位：风管就位前应检查全部支架的水乎度和标高、检查支架的牢固程度，风管就位可采用直接和吊具两种方法。对风管断面较小，又位置较低的可采用人工就位方法，只需搭设简易脚手架即可。当风管断面较大且管段较长时，可采用滑轮、倒链、大绳等方法吊装。世纪星介绍为了便于风道就位，一般多采用将风道吊在脚手架上，然后再将其抬放在风道支架上的方法。脚手架应沿其风道长度方向搭设，高度和位置应适合施工操作，吊装顺序应先干管后支、立管，吊起时，吊点应牢固，两吊点应均匀受力。垂直风管可采用人工和大绳辅助就位。调整风管保证垂直度要求。

(2) Air duct positioning: Before positioning the air duct, all supports should be checked for water tightness and elevation, and the firmness of the supports should be checked. There are two methods for positioning the air duct: direct and lifting. For ducts with smaller cross-sections and lower positions, manual positioning can be used, which only requires the installation of simple scaffolding. When the cross-section of the air duct is large and the pipe section is long, methods such as pulleys, chain blocks, and large ropes can be used for lifting. Century Star introduces that in order to facilitate the positioning of the air duct, it is generally used to hang the air duct on a scaffold and then lift it onto the air duct bracket. Scaffolding should be erected along the length direction of its air duct, and the height and position should be suitable for construction operations. The lifting sequence should start with dry pipes and then support and stand pipes. When lifting, the lifting points should be firm, and the two lifting points should be evenly stressed. Vertical air ducts can be positioned with manual and rope assistance. Adjust the air duct to ensure verticality requirements.

（3）风道调直：就位在支架上的风道，应拨正位置，调整风道横平竖直，然后再按图集要求固定。

(3) Air duct straightening: The air duct placed on the bracket should be aligned, adjusted horizontally and vertically, and then fixed according to the requirements of the atlas.