Advantage

Advantages

Product advantages

Based on the independent research and development of Dawang ventilation PMSM (Permanent Magnet Synchronous Motor)The new HVLs super large energy-saving fan based on the principle of permanent magnet synchronization has professional and unique large fan blades and motors, which push out a large amount of quasi natural air circulation air flow, effectively solving the problems of hot and humid space, air stratification, peculiar smell, dust and so on.

  • 15072m³/min air quantity

    8m super large diameter, 2400 ㎡ effective range, dispelling heat, humidity, smoke and peculiar smell

  • Omnidirectional dead angle free stereo cycle

    Accelerate air circulation and effectively eliminate temperature stratification

  • Comfortable and natural cooling

    Simulate the natural wind of level 2-3, the human body feels comfortable, the sweat evaporates rapidly, and the body feels cool by 5-8 ° C

  • Super mute

    38dB ultra low volume to solve the problem of noise

  • More intelligent

    App control, real-time monitoring of operation, active technical support, preventive maintenance strategy

  • More energy saving

    Energy consumption per hour ≤ 1.2 kwh, reaching the standard of high efficiency and energy saving

  • Buffer structure-
    high-efficiency fan components

    A.Blade design: streamlined variable cross-section

    Through aerodynamic simulation analysis, adopting the theoryy of equal chord length,combined with the principle of relative linear velocity, a streamlined fan blade with variablecross-section has been designed. It varies along its length & gets narrower and thinner gradually from the blade root to blade tip. The force on the blades is more balanced, making blade move air more uniformly without any holes underneath the fan.

    B.Blade material: aviation-grade industrial aluminum alloy sheet

    Adopting 5052H32 high-grade 1.5MM aviation-grade alumilnum alloy original sheet,processed by CNC precision with higher strength and higher flexibility to ensure no breakage. Each blade is only 6.7 kg(For 7.3M diameter fan, buffer parts are not included),fewer blades & lighter weight will prolong the motor life, so more safe and energy-saving.

  • Buffer structure-
    high-efficiency fan components

    A.Blades connection: multi-point riveting process

    Each blade is riveted by 16 pcs of high-strength rivets (Each single rivet is designed to withstand of1.5 tons of tensile strength), forming an independent stressed surface to withstand a shear force when the fan rurns.

    B.Move upward 0.5°

    The buffer cavity is equipped with a precisely calculated limit slot. When the fan is running, under the action of air flow, the buffer is freely adjusted in the limit slot of the cavity to realize the natural upward warping of the blade tip at 0-1.5 °, eliminate the reverse force generated during the operation of the fan, form a conical air flow, and realize that there is no cavity in the center and the coverage area is larger.

  • Patented wheel hub -
    the core of fan safety

    A.Patented Integrated Hub

    The petiole and the wheel/motor are integrated through the interlocking of the stepped concave-convex section,and the overall structure will withstand the centrifugal force when the fan runs,while all fasteners are not stressed.

    B.Patented tapered bushing structure

    The center of the hub is equippe with tapered bushing, which forms a structural self-lock with the motor shaft. Under gravity, it forms a natural tension to ensure a reliable connection between the whole hub and the motor.

    C.Safety Anti-fall Structure

    It forms a set - hanging with the frame chassis to prevent falling caused by wheel hub detachment or axle breakage.

    D.Safety Anti-fall Structure and outer rotor motor

    The anti-drop ring and the motor flange form a ferrule to ensur eeffective hooking in case of motor shaft-broken to ensure safe operation.