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HVLS large fan

A fan and large-scale technology, applied in the components of pumping devices for elastic fluids, non-variable pumps, pump devices, etc., can solve problems such as heat dissipation difficulties, fan falling, loose spindle assembly, etc., and achieve improved stability and service life, increase the width and its own strength, and ensure the effect of stability and safety performance

Pending Publication Date: 2021-07-23
广东美硕节能环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the industrial fans in the prior art adopt hanging installation, lack of safety anti-falling structure and some lifting structures are unreasonable, resulting in damage or breakage, which can easily cause the fan to fall and cause safety problems
At the same time, because of its large overall weight, vibration occurs during operation, which can easily make the assembly on the main shaft loose or even fall off, posing a safety hazard
In addition to ensuring the safety of the fan, improper design or use of large fans on the market will make heat dissipation difficult, and the resulting temperature rise of the motor may cause irreversible demagnetization of the permanent magnets. Unreasonable heat dissipation design will affect the use of large fans life
Moreover, the angle and torsion angle of the industrial fan blades in the prior art are unreasonably designed, and the excessive bending of the blades makes it difficult to guarantee the mechanical strength and width, which in turn affects the safety of large industrial fans. Performance, energy consumption and air volume, etc.

Method used

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  • HVLS large fan
  • HVLS large fan
  • HVLS large fan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The rear end cover 103 has a first bearing step 1031, the main shaft 4 has a first bearing assembly section 42 and a first bearing installation step 421 disposed on the first bearing assembly section 42, the inner ring of the first bearing 104 One side of the first bearing is received by the first bearing installation step 421, the side surface of the inner ring of the first bearing is attached to the outer surface of the first bearing segment assembly section and the lower part is received by the first bearing installation step, the first bearing The outer surface of the outer ring of the bearing fits against the side surface of the first bearing step. The rear end cover 103 is also provided with an oil seal washer 1032 at the center, and the oil seal washer 1032 is arranged above the first bearing 104 to further ensure the sealing of the internal cooling space below the first bearing 104 .

[0063] The hub 105 has a second bearing step 1051 and a bearing cover 1052 ar...

Embodiment 2

[0069] On the basis of Embodiment 1, when the rotor assembly rotates, the impeller disk is fixed on the hub by a plurality of bolts, thereby driving the impeller disk and the blades on the impeller disk to rotate.

[0070] The impeller disk 301 has a circular chassis main body and five fan blade supports 302 arranged on the edge of the chassis main body. The fan blade support parts and the chassis main body are twisted and inclined at an angle α, and the α angle The range includes 15°>α>10°;

[0071] The fan blade 303 has a reinforced support assembly extending from one end to the other end, and one end of the reinforced support assembly is inserted into the fan blade support 302 and fixed by bolts;

[0072] The reinforced support assembly has a reinforced support frame 3031 placed left and right and a reinforced support rib 3032 arranged in the middle of the reinforced support frame 3031 . Through the penetrating reinforced support ribs 3032 and the reinforced support frames...

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PUM

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Abstract

The invention discloses an HVLS large fan which comprises a permanent magnet synchronous power unit, a hoisting unit and a fan blade unit. The permanent magnet synchronous power unit is provided with a stator assembly connected with the hoisting unit and a rotor assembly connected with the fan blade unit; the stator assembly is provided with a main shaft and a stator support; the top of the main shaft is connected with the hoisting unit in a hoisting mode; the stator support is arranged on the main shaft; the stator support is provided with a stator winding unit generating a rotating magnetic field; and the rotor assembly is provided with a rear end cover, a hub and a rotor unit. According to the HVLS large fan provided by the invention, an industrial large fan and permanent magnet synchronous driving characteristics are combined, permanent magnet synchronous stator and rotor units are effectively combined with the structure of the industrial fan, and the assembly safety and the use safety of all parts on the hoisting unit and the main shaft are guaranteed through a double-ring locking part and a flange locking part, so that the anti-falling performance is optimized, potential safety hazards are avoided, the stability and the safety of hoisting are guaranteed, and the stability and the service life of the large fan are further improved.

Description

technical field [0001] The invention relates to the field of industrial fans, in particular to a large HVLS fan. Background technique [0002] Industrial fan is an industrial machine widely used in higher and larger spaces as space ventilation. It can better solve the problem of ventilation and cooling in large space environments. It drives a wide range of air flow through the slow rotation of huge fan blades, so as to achieve It simulates natural wind and blows the human body in all directions. It can effectively reduce the body temperature while ventilating, so as to achieve the purpose of creating a good working environment. For high and large spaces such as industrial plants, logistics warehouses, waiting rooms, exhibition halls, gymnasiums, supermarkets, etc., as the preferred solution for space ventilation and personnel cooling, industrial fans can push a large amount of airflow to the ground, forming a certain height of airflow on the ground The horizontal movement o...

Claims

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Application Information

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IPC IPC(8): F04D25/08F04D29/056F04D29/32F04D29/36F04D29/38F04D29/64
CPCF04D25/088F04D29/325F04D29/36F04D29/384F04D29/388F04D29/056F04D29/646
Inventor 陈冰
Owner 广东美硕节能环保科技有限公司