HVLS fans @ gear motor/PMSM motor
BRK-HD5-1.1 / BRK-HG5-2.1
Diameters ：7300-4600 mm
Big ceiling fans @ PMSM motor
BRK-SD-3660
Diameters：4300-3300 mm
Dock Fans@ Axial fan+ wind deflector
BRK-DF-1.1
Airflow range inside trailer≥15.5 m
Arm fans @ Broad type blade
BRK-ARM Fans 1.1 0.75 kw
Diameter：2000 mm/240 rpm
Moving fans with two segments
BRK-PT1.1/D2000
Diameters：1600-2000-2500 mm
Blade parts
Al-Pc Complex Blade + Blade Interconnect Grille
blade size：3600-1500 mm / OEM
A creative composition of two materials: plastic shell plus aluminum skeleton making up new kind of blade.
Interconnect all blades one by one with a nylon cord and form a ring. 3-5 such rings are knitted along the radial to become a protective grille. a free-fall blade will be held by its adjoining blades and floating overhead, avoid dangerous falling accident.
Al-Pc Complex Blade and Blade Interconnect Grille have significantly lift the levels of safety and reliability, they eliminate the potential risk of blade fall by :
A) weight reduction up to 40%;
B) reduction of metal fatigue;
C) elimination of resonance;
D) relief of curve down phenomenon;
E) reduction of cantilever load etc.Those reductions result in essential improvement on working condition of blade, the industry will renew their understanding to safety and reliability and set new criteria. Besides, the performance, service life and failure rate are also significantly improved correspondingly.
HVLS Ceiling Fan probably is only one ventilation and cooling solution with the best performance-price ratio for tall and large workshop and warehouse.
Hanging under the roof, no occupy floor space and maintain working area clean and clear.
No wires exposed to operators on ground.
Energy efficiency as the extend reach is more than 1400㎡ with only 1.5 kw power.
Rotating slowly to generate a nature like wind, feeling comfortable than those high rpm fans.
Low failure rate, low maintenance expenses and long service life.
Multiple applications such as interior ventilation and cooling in summer, drying goods surface in humid days and equalizing the temp from the roof to ground in winter.
Those incredible performances are endowed by the super long blade! It was reported that air-circulating amount is proportional to the cube of diameter, which means double the diameter will get eightfold of aircirculating.
Correspondingly, super long blade, normally 3.5 meters long, handing and rotating overhead, is key factor to people’s safety underneath. Almost all of the major accidents were related to blade, especially related to broken blade at the root position.
Safety is top priority of anything, it is worthwhile to spend no matter how many times and resources on security and reliability of the blade.
The precondition of large-scale installation for HVLS fans in crowded places like commercial mall, supermarket and waiting hall will be the day that the major potential risks be eliminated.
Brick invents a new blade and create a new evaluation system on safety and reliability for blade:Formation of two materials, plastic shell implants aluminum skeleton, reduce weight, no resonance, lessen curved down phenomenon and be accompanied with Blade Interconnect Grille.
Composite molding using lightweight materials and aluminum alloy, reducing weight, thinning wall thickness, structural vibration resistance, and introduction of blade interconnecting fall prevention nets
New composition:
two kinds of materials compose the blade, plastic shell implants aluminum skeleton, the total weight is about 60% of aluminum blade, reduction in weight means lower load, complex structure eliminates resonance, those changes result in essential improvement on safety.
Reinforce measures:
a tube is implanted inside blade skeleton at the root position to reinforce the strength of bolt place to avoid crushing.
Anti-Fall Measures:
introduce the concept of Anti-Fall Grille，interconnect all of the blades by a nylon cord, 3-5 such rings along the radial form a protective grille to hold the free-fall blade in case of blade broken.
New materials applied:
original and initial use of nylon cord in anti-fall measures, high strength and lightweight features secure the safety while increase little load.
Compared with aluminum alloy extruded balde, Al-Pc Complex Blade has the following advantages:
The total weight is about 60% of the extruded aluminum alloy blades of the same size, reducing the cantilever load;
The two materials are nested with each other and have different vibration frequencies, which reduces the transmission efficiency of vibration and slows down The extent of metal fatigue;
In case of individual blade break, Blade Interconnect Grill will hold the broken blade in the air by its adjacent normal blades through the intercontact nylon rope, which will prevent the blade from falling and hurt the people underneath.
The safety ring on skeleton connects the roots of all the blades together and is independent of the bolts fastening the blades, Another protection advice for the blades;
Besides, the fan adopted Al-Pc Complex Blade and Blade Interconnect Grille has run 24 hours a day For years months, the condition is perfect and the technology is worth to trust. The blade and skeleton had been hit by forklift at normal rpm, the cracked blade be held by the grille, while the skeleton only slightly deformed.
Except quality and performance, the third evaluation factor to a HVLS Fans would be the configuration of Blade Interconnect Grill! Brick convinces the technologies will be accepted and applied.
Status in Nov. 2022
Status in Dec. 2023
