CN218817195U - High-efficient ventilation blower three-dimensional flow impeller - Google Patents

Abstract

The utility model relates to a high-efficient ventilation blower ternary flow impeller relates to ventilation blower impeller technical field, and it includes wheel cap, rim plate and a plurality of blade, be provided with the inlet circle on the wheel cap, be provided with wheel hub on the rim plate, the blade sets up between wheel cap and rim plate, the blade includes horizontal blade and vertical blade, horizontal blade links to each other with vertical blade, horizontal blade one end links to each other with the rim plate, the horizontal blade other end links to each other with the wheel cap, vertical blade one end links to each other with the inlet circle, the vertical blade other end links to each other with wheel hub, the vertical blade surface is provided with the torsional curved surface. The application has the effects of reducing energy loss and expanding the application range.

Description

High-efficient ventilation blower three-dimensional flow impeller

Technical Field

The utility model belongs to the technical field of the ventilation blower impeller technique and specifically relates to a high-efficient ventilation blower three-dimensional flow impeller is related to.

Background

The ventilator is widely used for ventilation of factories, mines, tunnels and the like, wherein the centrifugal ventilator forms negative pressure inside the ventilator by means of rotation of the impeller, sucks external gas and discharges the external gas out of the ventilator through the impeller flow channel and the volute, and is widely applied in various fields; as the main components of the ventilator, the geometric shape, size, number of blades and manufacturing precision of the impeller have a great influence on the performance, and especially when energy conservation and emission reduction are pursued, energy conservation and high efficiency become new research directions of the ventilator impeller.

In the process of implementing the present application, the inventor finds that at least the following problems exist in the prior art: common fan impeller blade is ordinary binary flow structure, and energy loss is great when gas flows through the impeller, and the control range is narrower, and application scope is limited, therefore awaits promotion.

SUMMERY OF THE UTILITY MODEL

In order to reduce energy loss and expand the application range, the application provides an efficient ventilator three-dimensional flow impeller.

The application provides a high-efficient ventilation blower three-dimensional flow impeller adopts following technical scheme:

the utility model provides a high-efficient ventilation blower three-dimensional flow impeller, includes wheel cap, rim plate and a plurality of blade, be provided with the inlet circle on the wheel cap, be provided with wheel hub on the rim plate, the blade sets up between wheel cap and rim plate, the blade includes horizontal blade and vertical blade, horizontal blade links to each other with vertical blade, horizontal blade one end links to each other with the rim plate, the horizontal blade other end links to each other with the wheel cap, vertical blade one end links to each other with the inlet circle, the vertical blade other end links to each other with wheel hub, vertical blade surface is provided with the torsional curved surface.

By adopting the technical scheme, the airflow flows into the impeller through the vertical blades and flows out of the impeller through the transverse blades, and the wheel cover and the wheel disc are matched with the blades to form the closed impeller, so that the internal leakage of the airflow flowing through the impeller is reduced, the energy loss is reduced, and the efficiency is improved; the torsional surface of vertical blade makes the impeller inducer be the three-dimensional flow structure, and the distortion leads and the stationary flow in the face of the air current, makes the air current flow steady, and it is more smooth and easy to make the interior gas flow of impeller simultaneously, reduces the influence to aerodynamic performance such as detached flow, swirl, secondary flow, energy loss when reducing the air current and flowing through, in the lifting efficiency, enlarges the flow control scope of ventilation blower, enlarges application scope, is difficult to trigger the unit simultaneously and gets into surge region, guarantees the operation of safety and stability.

Preferably, the hub is provided with a first inclined plane, the vertical blades are connected with the first inclined plane, and the hub is provided with a shaft hole.

Through adopting above-mentioned technical scheme, the shaft hole is used for being connected with the transmission pivot, and first inclined plane on the wheel hub is narrow down wide for increase the width of vertical blade air intake, promote blade intensity, reduce the impaired possibility of blade, narrow down simultaneously go up wide first inclined plane convenient with vertical blade's welding, promote the convenience of impeller preparation.

Preferably, a conical disc is arranged at the joint of the wheel disc and the hub, and the vertical blades are connected with the conical disc.

Through adopting above-mentioned technical scheme, rim plate and wheel hub junction set up the conical disk, and the conical disk laminating air current flow state makes the interior gas flow of impeller more smooth and easy, reduces the energy loss when the air current flows through.

Preferably, a first attached blade and a second attached blade are arranged on the face, far away from the blades, of the wheel disc.

Through adopting above-mentioned technical scheme, when the impeller used, first attaches blade and second and attaches blade and strengthen impeller back intensity and weight, reduce rear end pressure, balanced axial force reduces wheel hub power consumption and calorific capacity, increases impeller and wheel hub life.

Preferably, the blades further comprise short blades, one end of each short blade is connected with the wheel cover, the other end of each short blade is connected with the wheel disc, and the short blades and the transverse blades are arranged at intervals.

Through adopting above-mentioned technical scheme, short blade shunts the air current, reduces the possibility that the air current formed the vortex between the transverse blade, reduces the energy loss when the air current flows through, improves ventilation blower efficiency, and transverse blade and short blade alternate the setting be convenient for the blade welding simultaneously.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the inlet ring is arranged on the wheel cover, the wheel hub is arranged on the wheel disc, the transverse blades are connected with the wheel disc and the wheel cover, the vertical blades are connected with the inlet ring and the wheel hub, a closed impeller is formed, inner leakage of airflow flowing through the impeller is reduced, energy loss is reduced, the twisted surface of the vertical blades enables the inlet section of the impeller to be of a three-dimensional flow structure, the twisted surface guides and stabilizes the airflow, the airflow in the impeller flows more smoothly, the influence of separation flow, vortex, secondary flow and the like on aerodynamic performance is reduced, the energy loss of the airflow flowing through is reduced, and the application range is expanded;

2. through the arrangement of the first attached blade and the second attached blade, when the impeller is used, the first attached blade and the second attached blade increase the back weight of the impeller, balance the axial force, reduce the heating and the abrasion and prolong the service life of the impeller.

Drawings

Fig. 1 is an overall schematic diagram of a high-efficiency ventilator three-dimensional flow impeller provided by an embodiment of the application.

Fig. 2 is a sectional view for showing a blade connection relationship.

Fig. 3 is a sectional view of a three-dimensional flow impeller of a high-efficiency ventilator provided by an embodiment of the application.

Fig. 4 is a schematic rear view of a three-dimensional flow impeller of a high-efficiency ventilator provided in an embodiment of the present application.

Description of reference numerals: 1. a wheel cover; 11. an air inlet; 12. an inlet ring; 2. a wheel disc; 21. a hub; 211. a shaft hole; 22. a first inclined plane; 23. a conical disc; 3. a blade; 31. a transverse blade; 32. a vertical blade; 321. twisting the curved surface; 33. short blades; 4. a first auxiliary blade; 5. the second attaches the blade.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses high-efficient ventilation blower three-dimensional flow impeller. Referring to fig. 1 to 2, it includes circular wheel lid 1, circular rim plate 2 and a plurality of blade 3 of setting between wheel lid 1 and rim plate 2, wheel lid 1 center is run through and is provided with air inlet 11, the welding is provided with inlet circle 12 on the wheel lid 1, 12 adaptation laminating air inlets 11 of inlet circle, the welding is provided with wheel hub 21 on the rim plate 2, wheel hub 21 surface center runs through and is provided with the shaft hole 211 that is used for connecting the transmission pivot, wheel hub 21 outer wall is provided with first inclined plane 22, wheel hub 21 is provided with conical disk 23 with 2 junctions of rim plate. The blade 3 includes integrative horizontal blade 31 and the vertical blade 32 that links to each other, and horizontal blade 31 evenly welds the setting on rim plate 2 surface along 2 direction of radii of rim plate, and the one end and the bottom surface welding of wheel cover 1 on the surface of rim plate 2 are kept away from to horizontal blade 31. Vertical blade 32 one end is continuous with the welding of import circle 12 inner wall along the direction of height of import circle 12, and vertical blade 32 other end links to each other with first inclined plane 22 and conical disk 23 welding, and the distance is equal between two adjacent vertical blade 32, and vertical blade 32 surface sets up to twist curved surface 321. The twisted surface 321 of the vertical blade 32 guides and stabilizes the airflow, so that the inlet section of the blade 3 is in a three-dimensional flow structure, and the conical disc 23 is matched to ensure that the airflow flows more smoothly in the impeller, thereby reducing the influence of airflow vortex, secondary flow and the like in the impeller, reducing energy loss, improving the efficiency of the ventilator and enlarging the application range. The first inclined surface 22 widens the vertical blade 32 at the impeller inlet section, improves the strength of the vertical blade 32 and facilitates welding. The impeller is sealed by the wheel cover 1 and the wheel disc 2, so that internal leakage of airflow flowing through the impeller is reduced, energy loss is further reduced, and efficiency is improved.

In order to reduce the possibility of damage to the impeller, referring to fig. 3 to 4, the side of the wheel disc 2, which is far away from the blades 3, is uniformly welded with a plurality of first attached blades 4 and second attached blades 5, the length directions of the first attached blades 4 and the second attached blades 5 are the same as the radius direction of the wheel disc 2, the first attached blades 4 and the second attached blades 5 increase the back weight of the impeller, reduce the rear end pressure of the impeller in use, balance the axial force, reduce the possibility of damage to the impeller, and prolong the service life of the impeller.

In order to further reduce the energy loss of the air flow in the impeller, referring to fig. 2 to 3, the blades 3 further include short blades 33, the short blades 33 are uniformly welded on the surface of the wheel disc 2 along the radius direction of the wheel disc 2, and one end of the short blade 33 away from the surface of the wheel disc 2 is welded and connected with the bottom surface of the wheel cover 1. Short blade 33 and horizontal blade 31 alternate the setting and make things convenient for the welding, and short blade 33 shunts the air current between horizontal blade 31, reduces the influence of air current vortex, further reduces the capacity loss of air current in the impeller, improves ventilation blower efficiency.

The implementation principle of the high-efficient ventilation blower three-dimensional flow impeller of the embodiment of the application is as follows: the impeller cover 1 and the wheel disc 2 enable airflow to flow in the impeller in a closed mode, internal leakage of the airflow in the impeller is reduced, and energy loss of the airflow is reduced. Through set up the curved surface 321 of turning round on vertical blade 32, make the impeller inducer become the three-dimensional flow structure, turn round curved surface 321 and lead to the air current, steady import air current, first inclined plane 22 and conical disk 23 on the cooperation wheel hub 21 make the air current more smooth and easy at the inside flow of impeller simultaneously, reduce the influence to aerodynamic performance such as separation flow, swirl, secondary flow, reduce energy loss, promote ventilation blower efficiency, enlarge application scope. The short blades 33 and the transverse blades 31 are arranged at intervals, so that the impeller is convenient to weld, meanwhile, the short blades 33 divide the airflow in the impeller, the possibility of generating vortex by the airflow in the impeller is reduced, and the energy loss of the airflow is further reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (5)

1. The utility model provides a high-efficient ventilation blower three dimensional flow impeller, includes wheel cap (1), rim plate (2) and a plurality of blade (3), be provided with inlet ring (12) on wheel cap (1), be provided with wheel hub (21) on rim plate (2), blade (3) set up between wheel cap (1) and rim plate (2), its characterized in that: blade (3) are including horizontal blade (31) and vertical blade (32), horizontal blade (31) link to each other with vertical blade (32), horizontal blade (31) one end links to each other with rim plate (2), horizontal blade (31) other end links to each other with wheel cap (1), vertical blade (32) one end links to each other with import circle (12), vertical blade (32) other end links to each other with wheel hub (21), vertical blade (32) surface is provided with turns round curved surface (321).

2. A high efficiency ventilator tertiary flow impeller in accordance with claim 1, wherein: wheel hub (21) is provided with first inclined plane (22), vertical blade (32) link to each other with first inclined plane (22), wheel hub (21) is provided with shaft hole (211).

3. A high efficiency ventilator tertiary flow impeller in accordance with claim 1, wherein: a conical disc (23) is arranged at the joint of the wheel disc (2) and the hub (21), and the vertical blades (32) are connected with the conical disc (23).

4. A high efficiency ventilator tertiary flow impeller in accordance with claim 1 wherein: and a first attached blade (4) and a second attached blade (5) are arranged on one surface of the wheel disc (2) far away from the blades (3).

5. A high efficiency ventilator tertiary flow impeller in accordance with claim 1, wherein: blade (3) still include short blade (33), short blade (33) one end links to each other with wheel cap (1), short blade (33) other end links to each other with rim plate (2), short blade (33) and horizontal blade (31) alternate setting.

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