As a core component of modern ventilation systems, spiral ducts are widely used in fields such as construction and industry. Their efficient ventilation and durability make them the preferred choice for air circulation systems. This article will comprehensively analyze spiral ducts from aspects such as installation methods, material performance, price comparison, and core applications to help users make scientific selections and use them properly.

 

 I. Installation Methods of Spiral Ducts

The installation of spiral ducts needs to follow a standardized process to ensure the stable operation of the system:

1.Positioning and Measurement: Determine the installation location according to the design drawings, measure the length and direction of the pipeline, and reserve connection ports.

2.On - site Preparation: Clean the construction area, remove obstacles, and ensure that the working surface is flat.

3.Cutting and Processing: Use special tools to cut the ducts to match the actual size requirements and avoid material waste.

4.Pipe Connection: Connect pipe sections using flanges, clamps, or seaming processes. Pay special attention to checking the sealing of the interfaces to prevent air leakage.

5.Fixing and Support: Use hangers or brackets to fix the ducts, with the spacing controlled within 3 meters to ensure the stability of the overall structure.

6.System Testing: Start the fan after the installation is completed, detect the air volume, noise, and sealing performance, and adjust them to the design parameters.

 

 II. Core Applications and Suitable Scenarios

Thanks to its circular structure with low resistance and high sealing performance, spiral ducts can meet the needs of multiple scenarios:

1.Building Ventilation: Deliver fresh air and exhaust indoor waste gas to optimize the air quality in places such as shopping malls and office buildings.

2.Central Air - Conditioning Systems: Serve as a transmission channel for hot and cold air. Energy loss can be reduced by pasting insulation materials inside.

3.Industrial Smoke and Dust Removal: Used for kitchen fume exhaust and dust collection in factory workshops. Stainless - steel materials can withstand high temperatures and corrosive gases.

4.Material Conveyance: Light - weight particles such as plastic pellets can be efficiently transported through the ducts, reducing the cost of traditional mechanical conveyance.

 

 III. Material Comparison and Price Analysis

The performance and cost of spiral ducts are directly affected by the materials. The mainstream types include:

1.Stainless - Steel Ducts: They have strong corrosion resistance and a service life of over 20 years. They are suitable for high - corrosion environments such as chemical plants and laboratories. The price is relatively high, about 1.5 times that of composite ducts.

2.Galvanized - Sheet Ducts: They offer the best cost - performance. The galvanized layer can resist ordinary humid environments and are widely used for ventilation in commercial buildings. The price is only 60% - 70% of that of stainless - steel ducts.

3.Composite Ducts: Made of glass fiber or polyurethane composite materials, they are lightweight and have good thermal insulation performance, but their mechanical strength is relatively low. They are mostly used in civil places with low pressure - resistance requirements.

 

 IV. Product Advantages and Selection Suggestions

Spiral ducts have significant advantages compared with traditional rectangular ducts:

-Structural Performance: The spiral seaming process improves the overall strength, enabling it to withstand higher wind pressure. The circular cross - section reduces ventilation resistance, and energy consumption is reduced by 15% - 20%.

-Installation Efficiency: Standardized pipe sections reduce on - site splicing nodes, and the construction period is shortened by more than 30%, which is especially suitable for the construction of large - area venues.

-Easy Maintenance: The smooth surface is not easy to accumulate dust, the cleaning cycle is extended, and the long - term operation and maintenance cost is reduced.

 

Selection Suggestions: First, select the material according to the usage environment. Choose stainless steel in high - humidity or corrosive areas, galvanized sheets for conventional buildings, and composite ducts when the budget is limited and the working conditions are mild. At the same time, calculate the air - volume requirements, match the pipe diameter and wall thickness, and avoid waste caused by over - design.

 

Through reasonable selection and standardized installation, spiral ducts can significantly improve the efficiency of ventilation systems and provide reliable solutions for various projects.