If we are careful, we can find that there are many rectangular pipes on the exterior walls of some factories. From the appearance, they are made of iron sheet. Do we know what the role of this pipe is? In fact, they are used for ventilation. Because the production operations in the factory often release some gases, some are harmless gases, but some are harmful gases, so in order to ensure the health of workers in the factory, these gases need to be discharged outside. Think about this Ventilation duct Give full play to the role of ventilation, and make sure to do a good job during construction, then we know that Ventilation pipe construction What are the prerequisites for? Do you understand the relevant construction regulations? Now let's follow the small editor to understand.

Prerequisites for construction of ventilation ducts:

1、 Preparation before construction:

1. All construction data shall be provided with factory certificate or quality appraisal document and product list.

2. The finished air duct shall be free from deformation, distortion, cracking, holes, flange dropping, missing riveting, missing bolt holes and other defects.

3. The valve body, air outlet and other parts under construction shall be checked to see whether the adjustment construction is sensitive and whether the noise elimination sheet and paint layer are damaged.

4. Data for construction application: auxiliary materials such as bolts, nuts and washers shall meet product quality requirements.

5. Check whether the size and position of the reserved holes on site and the size of the air duct meet the requirements of the drawings to prevent invalid construction.

2、 Preconditions for construction:

1. The building enclosure construction is completed, all obstacles and sundries have been cleared, and sundries on the ground have been cleared.

2. During the construction of the air duct of the purification system, the construction parts inside the building have been completed on the ground, and the concrete leveling of the wall surface has been completed. It is necessary to ensure that there is no dust or dust in the room.

3. It is necessary to have complete auxiliary materials for the construction site, and construction technicians shall guide the quality and skills.

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