The application of spiral air ducts

Mainly used to connect the air circulation between two places, playing a role in ventilation and breathability.

Spiral air duct, also known as spiral bite seam thin-walled pipe, was first applied in military industry, such as the exhaust (supply) air system of warships and ships, and later used in civil facilities such as trains, subways, and mines. By the year 2000, according to statistics, the use of spiral ducts in office buildings, shopping malls, subways, and other areas in the United States had reached 95.6%, and the use of spiral ducts in central air conditioning in residential areas had also reached 72.5%.Its main uses are as follows:

(1) Air supply, including ventilation, such as fresh air supply and exhaust, has a wide range, such as factory workshops and production site air. Due to the generation of harmful gases, outdoor air needs to be discharged and transported indoors. At this point, air delivery pipelines with high flow rate and low pressure should be used, and spiral air ducts are the most suitable. Generally, galvanized iron pipes are used, while stainless steel pipes are used in corrosive and particularly humid areas.

(2) Send cold air. The most common type is the pipes of central air conditioning, which require insulation materials. The spiral air duct can be coated with insulation material inside, which looks beautiful on the outside.

(3) Exhaust oil fumes. A large amount of oil fume is generated in the kitchens of restaurants, restaurants, and hotels, which needs to be discharged. The circular air duct used is the oil fume chimney. Here, the spiral air duct should be called an oil fume duct.

(4) Dust removal. Some factories have a lot of dust in their production workshops and require specialized dust removal devices. For pipes with high airflow, spiral air ducts can be used.

(5) Bulk material transportation. In the production process of some factories, loose particles need to be transported, especially those with low density, such as foam plastic particles, using spiral air ducts has low cost and good effect.