The application forms of the BT30 explosion-proof axial fan for factory ventilation are mainly classified based on the application scenarios and functional requirements. The common types include the following:
1. General ventilation and air exchange type
The BT30 explosion-proof axial fan is mainly used for air replacement in closed or semi-closed spaces such as factories, workshops, warehouses, and basements. By forcing air circulation, it can expel the stale air (such as dust, odors, and hot and humid air) in the room and introduce fresh air to improve indoor air quality and ensure the comfort of personnel and the safety of the production environment. Its impeller (excluding the shaft disk) is made of aluminum and is equipped with an explosion-proof motor. This model is suitable for industries such as chemical engineering and pharmaceuticals and can be used to exhaust flammable non-volatile gases. The installation process is the same as that of the ordinary T30 axial fan, and its safety meets the explosion-proof requirements of special industries.
2. Positional air supply / cooling type
The BT30 explosion-proof axial fan for factory ventilation is designed to meet the local cooling or air supply needs of specific work positions in the workshop (such as welding stations, assembly operation tables, and areas near high-temperature equipment). It is usually used in conjunction with a mobile stand and can be moved to the target position to directly supply air to the operator, reducing the local environmental temperature and dispersing harmful gases (such as welding fumes), improving the comfort of the job position, and preventing operators from being exposed to high temperatures or poor air quality for long periods.
3. Pipeline exhaust / air supply type
The BT30 explosion-proof axial fan for factory ventilation is used as a pipeline fan. By connecting to air ducts, it can achieve directional exhaust or air supply in specific areas, such as local exhaust systems in buildings (such as exhaust in bathrooms and kitchens) and air flow transportation between processes on production lines (such as material cooling air flow transportation in the light industry). This type of fan needs to match the pipe size to ensure that the air pressure can overcome the resistance of the pipe.
4. Auxiliary cooling
The BT30 explosion-proof axial fan for factory ventilation is used for auxiliary cooling of industrial equipment, electrical cabinets, and small refrigeration units. For example, a T30 fan placed beside the motor housing can accelerate the cooling of the motor and prevent damage due to overheating from long-term operation; a small T30 fan inside an electrical cabinet can exhaust the heat generated by the electrical components, ensuring the stable operation of the circuit.
5. Temporary emergency ventilation type
The T30 fan with a mobile stand can be used as an emergency ventilation device for sudden situations (such as temporary maintenance of the factory, ventilation and drying after water accumulation in the basement, and dispersion of harmful gases at the accident site). Its portable feature enables a quick response to temporary ventilation needs and compensates for the shortcomings of fixed ventilation systems.
The BT30 explosion-proof axial fan for factory construction is a widely used general-purpose axial ventilation equipment. With its compact structure and stable operation, it is suitable for ventilation and air exchange in various scenarios. The following is a detailed introduction from the aspects of core parameters, structural design, derivative models, and installation and maintenance:
1. Core Performance Parameters
o Specifications and Air Volume/Air Pressure: This fan series is rich in variety, with a total of 46 types. The number of blades includes 3, 4, 6, 8, and 9. The model numbers range from №2.5 to №10 (№2.5 is unique to the 4-blade type, while the rest of the blade types have model numbers from №3 to №10). The air volume range is 550 – 49,500 m³/h, and the air pressure range is 25 – 505 Pa, which can meet the ventilation needs of different spaces.
o Speed and Power: Models №3 – №8 are available in two motor speeds, while models №9 and №10 have only one speed. The motor power varies with the model number and operating conditions. For example, the power of model №2.5 is as low as 0.09 kW, and that of model №10 can reach 11.0 kW, which can match the power requirements for different air volumes and air pressures.
o Operating Conditions: It is only suitable for conveying non-corrosive and non-dusty gases, and the gas temperature must not exceed 80°C to avoid component damage and affect the equipment’s lifespan.
2. Structural Design
The fan consists of:
o Impeller: Adjustable aluminum alloy impeller, anti-corrosion and explosion-proof.
o Housing: Comprising a wind tunnel and a base frame. The base frame is made of thin steel plates and profiles, which can protect the internal components and enable stable installation through the base frame, suitable for both fixed and mobile installation scenarios.
o Guard Net: Features a streamlined arc design, made of thin steel plates by stamping, which can effectively reduce the resistance loss when the airflow enters, enhancing the overall air delivery efficiency of the fan.
