Helical ducts play a crucial role in our ventilation and air exchange, especially in ventilation equipment, effectively connecting all parts of the system for smoother operation. Optimal helical ducts are designed to ensure that businesses achieve the intended performance while also aiming to save costs on maintenance and enhance product value. To achieve such effects, the product must meet the following basic requirements.

**Understanding the calculation methods for the flow resistance (frictional resistance and local resistance) within ventilation ducts and the pressure distribution laws.

Secondly, proficiently master the methods for determining the local resistance coefficients of bimodal friction and typical local components.

Three: Master the principles and methods of uniform air distribution duct design calculation.

Four: Master the layout and selection of ductwork.

Understanding the pipeline calculations and resistance characteristics of gas-solid two-phase flow in conveying systems.

Six: Can determine the operating point of the fan in the duct system.

Primary Use:

Ventilation System: Supplies fresh air and exhausts harmful gases, bringing outdoor fresh air indoors. Due to the high flow rate of the ventilation system, air ducts with low resistance are required to save on construction and operational costs. Spiral ducts produced by spiral duct machines are suitable. The raw material is galvanized steel strip, and stainless steel material can also be used for corrosive and especially humid environments.

Second: Air Conditioning Systems: Central air conditioning, cold storage, etc., can be internally lined with insulation materials for spiral ducts, offering an aesthetically pleasing appearance.

The Exhaust Gas System: Kitchens in canteens, restaurants, and hotels generate a significant amount of smoke, which requires effective exhaust. Spiral ducts are an ideal solution, replacing traditional handcrafted options. These spiral ducts offer excellent strength and are both economical and practical.

Four: Dust Removal Bulk Material Conveying System: For flour mills, flower-making factories, feed factories, etc., the collection and conveyance of dust removal equipment. In the pneumatic conveying system, finer and loose material particles can be transported using spiral ducts, offering low cost and effective results.