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HTF type fire smoke exhaust axial fan

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Product Description

The HTF type fire smoke exhaust axial fan is mainly used for quickly expelling smoke and toxic gases during a fire; the bidirectional axial fan can be used for ventilation and air exchange under normal circumstances and for smoke extraction during a fire. The HTF fire high-temperature axial fan can operate continuously at 300°C for 45 minutes and at 100°C for 20 hours per cycle without damage. According to the different requirements of advanced civil buildings, variable speed or multi-speed drive forms can be adopted to achieve dual purposes (i.e., common ventilation and high-temperature smoke extraction for fire use), widely applied in high-rise civil buildings, ovens, underground garages, tunnels, subways, underground utility galleries, etc.

Structural features of fire smoke exhaust axial fans

- Impeller: Typically consists of blades and a hub, with blades usually formed by hydraulic pressing of steel plates and the hub by hydraulic stretching. The impellers undergo dynamic and static balance correction, ensuring high precision. For example, the impeller hub and blades of the JSF-H series axial fans are made of high-strength aluminum alloy through precise die-casting, each blade rigorously inspected and qualified by X-ray flaw detection, connected by high-strength bolts to ensure reliable long-term operation of the fan.

- Motor: Uses specially designed high-temperature motors for fire fans, with insulation class H and protection class IP54, capable of stable operation in high-temperature environments. The motor is fully enclosed and equipped with a dedicated cooling system to effectively prevent overheating and damage during high-temperature operation.

- Duct: Generally formed by spinning hot-rolled steel plates, with flanges integrated into the duct, spun straight, and welded using a robotic duct welding device, resulting in a neat appearance, uniform welds, and aesthetic appeal, ensuring the sealing and stability of the fan during operation.

- Other components: Includes motor plate, bearings, brackets, etc. The motor plate is precisely cut using fiber laser cutting machines, bent and reinforced by bending machines, and welded to the duct to ensure the stability of the entire fan during operation. Bearings need regular lubrication and inspection to ensure normal fan operation.

Performance parameters of HTF fire axial fans

- Airflow: Generally large, such as the airflow range of the HTF series fire axial fans being 2000-145000 m³/h, and the JSF-H series axial fans being 2900-307100 m³/h, meeting the needs of different building scales and usage scenarios.

- Pressure: Ranges from dozens of Pascals to over a thousand Pascals, such as the pressure range of the HTF series fire axial fans being 60-1600 Pa, providing suitable pressure according to actual needs to ensure smooth conveyance of smoke or air.

- Speed: Varies depending on the model and specifications of the fan, generally between hundreds to thousands of revolutions per minute, with speed adjustments to regulate airflow and pressure.

- Motor power: Wide range, from several kilowatts to over a hundred kilowatts, specific power depending on the fan's airflow, pressure, and speed parameters.

Installation and maintenance of fire smoke exhaust axial fans

Before installation, inspect the appearance, impeller, motor, and other components for damage, ensure all connecting bolts are tight, and check that there are no obstructions in the fan ductwork that could hinder rotation. Select an appropriate installation method according to design requirements, such as horizontal, roof-mounted, or vertical, ensuring the installation position is secure and meets the required level and vertical alignment. The connection between the fan and duct should use flexible connections to reduce vibration and noise transmission, while ensuring a tight seal to prevent air leakage. After installation, conduct a trial run to check the fan's rotation direction, listen for abnormal sounds and vibrations, and verify that all components are functioning properly. Maintenance includes regular cleaning of the fan casing and impeller to improve aesthetics and cooling efficiency, quarterly lubrication of bearings by checking and adding appropriate lubricant, and inspection of the motor's power line connections and internal bearings every quarter. The impeller should be cleaned and inspected regularly to ensure it is smooth and free from defects, with maintenance cycles set quarterly. Smoke exhaust ducts should be checked and cleaned quarterly to ensure unobstructed airflow. Regularly inspect the installation fixtures to ensure they are securely fastened and connections are reliable, addressing any issues promptly to prevent loosening or shifting during operation.

HTF type fire smoke exhaust axial fan (1)

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Products

Products

How do centrifugal steel mill fans boost efficiency?

How is a fan drive shaft crucial for sustainability?

What are key wind turbine components today?

Which wind turbine manufacturer leads in innovation?

How are Chinese wind turbine manufacturers innovating?

How does a titanium fan benefit sustainability?

HTF type fire smoke exhaust axial fan

Description

marker

Product Description

Structural features of fire smoke exhaust axial fans

Performance parameters of HTF fire axial fans

Installation and maintenance of fire smoke exhaust axial fans

contact us

Related popular products

Mixed-flow fans

An auxiliary combustion fan

Jet fans

Kiln exhaust fan

JK series of mine local exhaust fans

Axial flow fans

Dual Inlet Centrifugal Fan

Anti-corrosion axial flow fans

Roof axial fans

Multi-stage centrifugal blower

Desulfurization fans

FBCDZ coal mine main ventilator

Anti-corrosion centrifugal fans

Stainless steel centrifugal fan

Roots blower

FBD series (dⅠ) explosion-proof pressure-injection counter-rotating axial flow local ventilation fan

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