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Possesses strong capabilities in the development, research and manufacturing of complete sets of central air-conditioning equipment as well as related products such as ventilation systems and composite ducts.

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Address: 17 km along Provincial Highway 324, Wucheng County, Dezhou City, Shandong Province

Phone: +8613210990300

WhatsApp : 8618105445078

Email: 15110710633@163.com

Duct fan

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Fan category

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Product

Fan category

Product Description

1. The selection criteria for duct ventilators include airflow rate, total pressure, efficiency, noise level, and motor power.
2. Select ventilators with different applications based on the physical and chemical properties of the gas being conveyed. For example, if conveying clean air, a general-purpose ventilator should be chosen; if conveying flammable or explosive gases, an explosion-proof ventilator should be selected; and if conveying corrosive gases, a corrosion-resistant ventilator should be used.
3. When selecting a fan, one should take into account air leakage losses in the duct system, calculation errors, and the negative deviations of the fan’s actual airflow and pressure. Generally, the airflow is selected as: 1.05~1.1, Wind pressure is 1.10–1.15 The safety factor. However, it should not be excessively large either, to prevent the fan from operating for extended periods in a low-efficiency range.
4. Pay attention to the matching relationship between the resistance characteristics of the pipeline network and the performance characteristics of the fan. To ensure stable operation of the fan, it should operate near its point of highest efficiency; the fan’s operating point should be located to the right of the peak pressure point on the performance curve. ( That is, on the side with high airflow, and generally located at the peak of total pressure. 80%) 。
5. For ventilation systems with noise reduction requirements, one should first select ventilators that feature high efficiency and low impeller peripheral speeds, and ensure that these ventilators operate near their peak efficiency point. Additionally, corresponding noise reduction and vibration control measures should be adopted based on the propagation characteristics of noise and vibration generated by the ventilation system.
6. The duct ventilator achieves both axial flow and other effects by modifying the shape of its blades, ensuring that after air enters the fan, it experiences both axial and other flow components. , It also generates some centrifugal action, so its performance falls somewhere between that of an axial-flow fan and a centrifugal fan.
7. Duct ventilation fans provide medium static pressure and moderate airflow, making them well-suited for ventilation systems in high-rise residential buildings.