CN109707666B

CN109707666B - Super-high power type fan impeller

Info

Publication number: CN109707666B
Application number: CN201910188532.5A
Authority: CN
Inventors: 胡志军; 胡佳静; 胡家福
Original assignee: Hebei Huasheng Environmental Protection Equipment Technology Co ltd
Current assignee: Hebei Huasheng Environmental Protection Equipment Technology Co ltd
Priority date: 2019-03-13
Filing date: 2019-03-13
Publication date: 2021-07-27
Anticipated expiration: 2039-03-13
Also published as: CN109707666A

Abstract

The invention discloses an ultra-high power type fan impeller, which comprises a front disc, a rear disc and blades, wherein the blades are positioned between the rear disc and the front disc, the rear disc is of a planar integrated structure, the front disc is of an integrated structure and comprises an upper end surface and a lower end surface, and an inward-concave arc-shaped structure is arranged between the upper end surface and the lower end surface; the blade is level and smooth integrative structure, and the outside limit of blade is the vertical limit of connecting front disc and back dish, and the inboard edge of blade is the straight flange of leanin, and the base of blade is the arc structure of fixing on the back dish, and the summit on adjacent blade base, the centre of a circle of basic point and back dish lie in same straight line, and the first tangent line that corresponds the blade topside on the blade outside is located the outside that corresponds the second tangent line on blade base, and the topside of blade is the arc structure with the connecting portion of the interior hypotenuse of blade. The ultra-high-power fan impeller adopting the structure has the advantages of high working efficiency, low noise and long service life.

Description

Super-high power type fan impeller

Technical Field

The invention relates to the technical field of fan equipment, in particular to an ultra-high-power fan impeller.

Background

The fan is used as an impeller machine for conveying air, and is widely applied to the fields of industrial production and daily life of aviation, coal, electric power, metallurgy, electronics, automobiles, air conditioners and the like. The impeller is the most important part of the centrifugal ventilator and its function is to convert mechanical energy into static and kinetic energy of the gas.

The fan is a power machine which utilizes the rotation of the impeller to enable air to move continuously, so that the impeller is an important component of the fan and directly influences the use performance of the fan. The fan runs by driving the impeller by the motor, the power of the motor depends on the rotating speed and the weight of the impeller, and the flow and the pressure of the fan are determined by the rotating speed of the impeller. The larger the air resistance on the surface of the blade is, the more the energy is consumed, and meanwhile, the ventilation quantity at the tail end of the blade is reduced, the running efficiency of the fan is influenced, and more noise is generated in the process of mutual collision of air. The blades of the fan impeller in the prior art have high running noise and low working efficiency in the working process.

Disclosure of Invention

The invention aims to provide an ultra-high power type fan impeller which is high in working efficiency, low in noise and long in service life.

In order to achieve the purpose, the invention provides an ultra-high-power fan impeller which comprises a front disc, a rear disc and blades, wherein the blades are positioned between the rear disc and the front disc, the rear disc is of a planar integrated structure, the front disc is of an integrated structure and comprises an upper end surface and a lower end surface, and an inward-concave arc-shaped structure is arranged between the upper end surface and the lower end surface;

the blade is smooth integrative structure, the outside limit of blade is for connecting the front disc with the vertical limit of back plate, the inboard edge of blade is the straight flange of leanin, the base of blade is for fixing arc structure on the back plate is adjacent the summit, the basic point on blade base and the centre of a circle of back plate are located same straight line, correspond on the blade outside limit the first tangent line that corresponds the blade topside is located the outside that corresponds the second tangent line on blade base, the topside of blade with the connecting portion of the interior hypotenuse of blade is the arc structure.

Preferably, the length of the top edge of the vane is equal to one half of the length of the bottom edge of the vane, and the included angle between a first tangent line corresponding to the top edge of the vane and a second tangent line corresponding to the bottom edge of the vane on the outer side edge of the vane is 30-40 degrees.

Preferably, the radian of the circle center on the rear disc corresponding to the bottom edge of each blade is 30-50 degrees.

Preferably, the top points of the bottom edges of the blades are distributed on a concentric circle of the rear disc, and the radius of the concentric circle is one third of that of the rear disc.

Preferably, the angle between the inner oblique edge of the vane and the upper bottom edge of the vane is 60-75 degrees.

Preferably, the front disc and the rear disc are arranged in parallel, the blades are located on the inner side of the upper end face, the radius of the lower end face is equal to the radius of the rear disc, and the inner diameter of the upper end face is equal to two thirds of the radius of the rear disc.

Preferably, the thickness of the blades is uniform, and the number of the blades is 12 and the blades are uniformly distributed on the rear disc.

Therefore, the ultra-high power type fan impeller adopting the structure has the advantages of high working efficiency, low noise and long service life.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

FIG. 1 is a front view of an embodiment of a super high power fan impeller of the present invention;

FIG. 2 is a side view of an embodiment of a side view of a super high power fan wheel of the present invention;

FIG. 3 is a schematic diagram of an embodiment of a blade in a side view of a super high power fan wheel of the present invention;

fig. 4 is a sectional view of a side view of an embodiment of a super high power fan impeller of the present invention.

Reference numerals

1. A front plate; 11. an upper end surface; 12. a lower end face; 2. a rear disc; 3. a blade; 31. an outer side edge; 32. an inner side edge; 33. a bottom edge; 34. a vertex; 35. a base point; 36. and (6) the top edge.

Detailed Description

Embodiments of the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a front view of an embodiment of an ultra-high power fan impeller of the present invention, fig. 2 is a side view of an embodiment of an ultra-high power fan impeller of the present invention, fig. 3 is a schematic view of an embodiment of a blade in a side view of an ultra-high power fan impeller of the present invention, fig. 4 is a cross-sectional view of an embodiment of an ultra-high power fan impeller of the present invention in a side view, as shown in the drawings, an ultra-high power fan impeller includes a front disk 1, a rear disk 2, and blades 3, the blades 3 are located between the rear disk 2 and the front disk 1, the front disk 1 and the rear disk 2 are arranged in parallel, the rear disk 2 is a planar integrated structure, and the blades 3 firmly connect the rear disk 2 and the front disk 1 together. Preceding dish 1 is structure as an organic whole to including up end 11 and lower terminal surface 12, blade 3 is located the inboard of up end 11, and the internal diameter of up end 11 equals two-thirds of back dish 2 radius, and the radius of lower terminal surface 12 equals the radius of back dish 2, is the convex structure of indent between up end 11 and the lower terminal surface 12, and preceding dish 1 and back dish 2 are with the inseparable fixed of blade 3 inside, and the wind current gets into from the entry of up end 11, then revolves out under the effect of blade 3.

The blades 3 are of a smooth integrated structure, the thickness of the blades 3 is uniform, the number of the blades 3 is 12, the blades are uniformly distributed on the rear disc 2, and the blades are arranged to ensure strong enough wind current which is screwed out. The outer side edges 31 of the blades 3 are the vertical edges connecting the front disc 1 and the rear disc 2, the outer side edges 31 of the blades 3 providing support. The bottom edge 33 of each blade 3 is of an arc structure fixed on the rear disc 2, the radian of the circle center on the rear disc 2 corresponding to the bottom edge 33 of each blade 3 is 30-50 degrees, the top point 34 and the base point 35 of the bottom edge 33 of each adjacent blade 3 and the circle center of the rear disc 2 are positioned on the same straight line, and air flow enters the fan along the trend of the blade 3, so that the air pressure strength of an air chamber of the fan is enhanced, and air backflow with external resistance generated in operation is prevented. The apex 34 of the base 33 of the vane 3 is distributed on a concentric circle of the rear disc 2, the radius of the concentric circle being one third of the radius of the rear disc 2.

The first tangent line corresponding to the top edge 36 of the blade 3 on the outer side edge 31 of the blade 3 is positioned at the outer side of the second tangent line corresponding to the bottom edge 33 of the blade 3, the included angle between the first tangent line corresponding to the top edge 36 of the blade 3 and the second tangent line corresponding to the bottom edge 33 of the blade 3 on the outer side edge 31 of the blade 3 is 30-40 degrees, the outer side edge 31 of the blade 3 is more inwards inclined compared with the top edge 36 of the blade 3, the allocated power value is fully utilized, and the forward-inclined curved blade is adopted, so that the output airflow is strong and smooth. The length of the top edge 36 of the blade 3 is equal to half of the length of the bottom edge 33 of the blade, so that the entering wind flow enters along the direction of the top edge of the blade. The inner side edge 32 of the blade 3 is an inwardly inclined straight edge, and the angle between the inner inclined edge of the blade 3 and the upper bottom edge 33 of the blade 3 is 60-75 degrees. The top edge 36 of the vane 3 is connected with the inner oblique edge of the vane 3 in an arc structure, and the vane 3 with a smooth structure enables air to flow more smoothly.

Therefore, the ultra-high power type fan impeller adopting the structure adopts the blades which are close to the channels, are bent towards the single plates after being inclined forwards, reduces the impact of airflow, has good stability, is not easy to overload a motor, and overcomes the defects that the inner part of the hollow blade of the wing type is subjected to dust entering after being worn through, the dust in the non-working area causes vibration and the like. The impeller is subjected to dynamic and static balance verification, the aerodynamic performance is good, and the airflow output pressure coefficient is high. The device has the advantages of low cycle speed, low noise, high working efficiency, long service life and better practicability.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a super high power type fan wheel which characterized in that: the blade is positioned between the rear disc and the front disc, the rear disc is of a planar integrated structure, the front disc is of an integrated structure and comprises an upper end face and a lower end face, an inward-concave arc-shaped structure is arranged between the upper end face and the lower end face, and the blade extends inwards and extends out of the upper end face inwards in the radial direction;

the blades are of a smooth integrated structure, the outer side edges of the blades are vertical edges connecting the front disc and the rear disc, the inner side edges of the blades are straight edges inclining inwards, the bottom edges of the blades are arc-shaped structures fixed on the rear disc, the top points and the base points of the bottom edges of the adjacent blades and the circle center of the rear disc are located on the same straight line, and the connecting parts of the top edges of the blades and the inner oblique edges of the blades are arc-shaped structures;

the length of the top edge of the blade is equal to one half of the length of the bottom edge of the blade, and an included angle between a first tangent line corresponding to the top edge of the blade and a second tangent line corresponding to the bottom edge of the blade on the outer side edge of the blade is 30-40 degrees;

the radian of the circle center on the rear disc corresponding to the bottom edge of the blade is 30-50 degrees;

the thickness of the blades is uniform, the number of the blades is 12, the blades are uniformly distributed on the rear disc, and the rotating angle between the blades is 30 degrees.

2. The ultra high power type fan impeller of claim 1, characterized in that: the top points of the bottom edges of the blades are distributed on a concentric circle of the rear disc, and the radius of the concentric circle is one third of that of the rear disc.

3. The ultra high power fan impeller of claim 2, further comprising: the included angle between the inner oblique edge of the blade and the upper bottom edge of the blade is 60-75 degrees.

4. The ultra high power fan impeller of claim 3, further comprising: the front disc and the rear disc are arranged in parallel, the blades are positioned on the inner side of the upper end face, the radius of the lower end face is equal to that of the rear disc, and the inner diameter of the upper end face is equal to two thirds of the radius of the rear disc.