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顺达空调设备集团Shunda HVAC

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Explosion Proof Mixed Flow Industrial Air Blower
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Product Introduction

This explosion proof mixed flow industrial air blower is meticulously engineered to meet the most stringent safety regulations for operation in classified hazardous zones. Utilizing advanced anti-static materials and precision-machined components, the unit effectively prevents the generation of ignition sources, ensuring safe performance even when exposed to flammable gases, dust, or volatile organic compounds. The housing is constructed from heavy-duty rolled steel with a corrosion-resistant epoxy powder coating, providing exceptional structural integrity against harsh industrial atmospheres. All electrical connections and motor windings are fully encapsulated with flame-retardant insulation systems, designed to withstand extreme thermal fluctuations and prevent internal arcing. Certified to meet global ATEX Directive 2014/34/EU and IECEx standards, this blower guarantees compliance for international industrial projects, offering unparalleled protection against explosive atmospheres in Class I, Division 1 environments.

The core of this mixed flow industrial air blower lies in its sophisticated aerodynamic architecture, which seamlessly blends the high-pressure characteristics of centrifugal fans with the high-volume efficiency of axial fans. Precision-balanced, backward-curved impellers manufactured from high-strength aluminum alloy ensure smooth, turbulence-free airflow while minimizing mechanical vibration and acoustic resonance. The integrated explosion-proof motor features a TEFC (Totally Enclosed Fan Cooled) design with a reinforced cast iron end shield, preventing the ingress of external contaminants and ensuring consistent thermal dissipation under continuous 24/7 operation. Advanced labyrinth seals and precision-machined shaft bushings eliminate air leaks, maximizing volumetric efficiency and reducing energy consumption. The modular housing design allows for flexible duct connection configurations, accommodating both radial and axial inlet/outlet orientations. Each unit undergoes rigorous dynamic balancing and non-destructive testing (NDT) protocols during the final assembly phase to guarantee micron-level precision and a service life exceeding industry standards.

Advantages

🔒 Advanced Explosion-Proof Engineering​:Every component — from the motor housing to the impeller shaft — is engineered to prevent ignition sources in hazardous atmospheres. The TEFC (Totally Enclosed Fan Cooled) motor design, combined with anti-static coatings and flame-resistant insulation, ensures zero spark risk even under extreme thermal or mechanical stress. Certified to ATEX/IECEx standards, this blower meets global safety benchmarks for Zone 1 & 2 environments. No compromises on protection — just pure industrial-grade reliability.

⚙️ Precision-Machined Aerodynamic Performance​:The mixed-flow impeller is crafted from high-strength aluminum alloy using CNC machining for micron-level balance. This eliminates turbulence and vibration while maximizing airflow efficiency. Unlike traditional axial or centrifugal designs, our hybrid structure delivers consistent pressure across a wide range of operating points — ideal for variable load conditions without sacrificing stability or noise control.

🛡️ Corrosion & Contamination Resistance​:Constructed with hot-rolled steel frames and epoxy powder-coated surfaces, the unit resists rust, chemical degradation, and particulate buildup. Labyrinth seals and precision bushings prevent internal leakage, maintaining optimal performance even in dusty, humid, or corrosive environments. Maintenance is simplified thanks to modular access panels and standardized mounting interfaces.

🌡️ Continuous Operation Capability​:Designed for 24/7 industrial duty cycles, the blower maintains thermal stability through optimized cooling fins and reinforced thermal insulation. It operates reliably within temperature ranges of -20°C to +60°C (with optional variants available), making it suitable for harsh climates and demanding shifts. No overheating, no downtime — just uninterrupted airflow when you need it most.

Applications

  • Oil & Gas & Petrochemical Industry: Widely used for ventilation in oil refineries, LNG terminals, chemical plants, and storage tank areas. Effectively discharges flammable gas mixtures (such as methane, gasoline vapor) to prevent the accumulation of explosive atmospheres .
  • Coal Mining & Underground Engineering: Applied in coal mines, tunnels, and subway construction for forced ventilation. Quickly expels hazardous gases like gas (methane) and dust, ensuring safe breathing air for workers and preventing mine explosions .
  • Grain Processing & Dust-prone Workshops: Ideal for flour mills, feed factories, woodworking, and textile industries. Continuously ventilates to keep combustible dust concentrations (such as wheat flour, corn starch, wood dust) below safe thresholds, eliminating dust explosion hazards .
  • Pharmaceutical & Food Manufacturing: Suitable for cleanroom exhaust and ventilation in pharmaceutical factories, as well as food processing plants. Safely handles volatile organic compounds (VOCs) and steam while maintaining strict hygiene and safety standards .
  • Wastewater Treatment & Hazardous Waste Facilities: Used in sewage treatment plants and biogas digesters for odor control and aeration. Operates safely in environments with accumulated biogas (methane) to prevent combustion .
  • Power Generation & Metallurgical Industries: Employed in boiler rooms, power plants, and metal smelting furnaces for high-temperature exhaust and cooling ventilation. Resists harsh environments and ensures stable airflow under extreme temperatures .
  • Paint, Printing & Solvent Recovery: Perfect for paint shops, printing factories, and solvent recovery systems. Efficiently extracts volatile solvents and flammable fumes, protecting workers' health and reducing fire risks .

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Explosion Proof Mixed Flow Industrial Air Blower

The explosion proof mixed flow industrial air blower is a special explosion-proof blower, which is suitable for places with explosion-proof requirements such as oil-fired and gas-fired boiler rooms, workshops with high-concentration dust, oil depots, gas storage stations and warehouses for the storage of flammable items. This explosion proof mixed flow industrial air blower is designed and manufactured in accordance with relevant explosion-proof standards. It adopts a flameproof motor and an aluminum alloy impeller, which can effectively prevent sparks when operating to ensure safe operation in flammable and explosive environments. The fan adopts an mixed-flow design and a streamlined structure design to reduce air flow resistance, improve ventilation efficiency and reduce energy consumption. The explosion proof industrial air blower has a compact structure, small occupation area. It is convenient for installation and maintenance.

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