The installation of stainless steel welded air pipes in the ventilation equipment of the spray painting factory workshop has the following effects:

1. Strong corrosion resistance: stainless steel material can effectively resist the corrosion of chemical substances produced in the process of painting, extend the service life of the air duct and reduce maintenance costs.

2. Good sealing: The welding process can ensure that the sealing performance of the air duct connection is good, reduce air leakage and improve the efficiency of the ventilation system.

3. Hygiene and cleaning: stainless steel surface is smooth, not easy to accumulate dust and breed bacteria, easy to clean and maintain a healthy environment in the workshop.

4. High strength: It can withstand the pressure and vibration generated during the operation of the ventilation system to ensure the stability of the system.

5. High temperature resistance: adapt to the higher temperature that may occur during the painting process, and will not be deformed or damaged due to temperature changes.

6. Aesthetic: stainless steel material has a good appearance, so that the overall workshop looks more tidy and standardized.

However, the installation cost of stainless steel welded air pipes is relatively high, and the welding process is strict. However, from the perspective of long-term use and maintenance, its application effect in the ventilation equipment of the spray painting factory is usually more significant.

The following criteria are usually required:

1. Material standards: stainless steel materials should meet the relevant national standards or industry standards, such as chemical composition, mechanical properties, surface quality and other requirements.

2. Welding standards: welding process and quality should comply with GB 50236 "Field equipment, industrial pipeline welding engineering construction Code" and other relevant standards to ensure the strength, tightness and appearance quality of the weld.

3. Size and tolerance standards: the size, diameter and wall thickness of the air duct should comply with the provisions of GB 50243 "Ventilation and air conditioning Engineering construction quality Acceptance Code", and the tolerance is controlled within the allowable range.

4. Ventilation system design standards: comply with GB 50736 "Civil Building heating ventilation and air conditioning design Code" and other relevant standards to ensure that the ventilation volume, wind speed, wind pressure and other parameters meet the ventilation requirements of the paint shop.

5. Tightness standard: Tightness test is carried out according to relevant standards to ensure that the air leakage of the air duct system is within the specified range to ensure the ventilation effect.

6. Fire protection standards: Meet the requirements of GB 50016 "Code for Fire Protection of Building Design" for the fire performance of ventilation pipes to ensure that they can play their due role in the event of fire.

7. Environmental standards: comply with national and local environmental laws and regulations to prevent the exhaust gas emitted by the ventilation system from polluting the environment.

8. Installation standards: The installation process should follow GB 50242 "Building water supply and drainage and heating engineering construction quality acceptance Code" and other standards to ensure that the installation of air pipes firmly, levelness and verticality meet the requirements.

It should be noted that the specific standards to be complied with may vary according to the special requirements of the region, industry and project, and the relevant local standards and norms should be understood and followed in detail before the actual construction.