CN210317938U

CN210317938U - FFU high-efficiency impeller

Info

Publication number: CN210317938U
Application number: CN201920918263.9U
Authority: CN
Inventors: 李铁斌
Original assignee: Qisheng Purification Technology Kunshan Co ltd
Current assignee: Qisheng Purification Technology Kunshan Co ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-04-14
Anticipated expiration: 2029-06-18

Abstract

The utility model relates to a FFU high-efficiency impeller, which comprises a chassis, wherein the chassis is formed by integrally forming a fixed ring and a wheel disc, the wheel disc is connected at the inner side of the fixed ring, the wheel disc is designed into an arc convex surface structure, reinforcing ribs are uniformly distributed at the bottom of the wheel disc, the center of the wheel disc is connected with a shaft connecting seat, a shaft hole is arranged at the center of the shaft connecting seat, a shaft sleeve is sleeved at the inner side of the shaft hole, six fan blades are uniformly connected at the top of the chassis, and the fan blades are arranged at equal intervals, the utility model has the advantages of simple structure, stability, reliability and convenient installation, the blade inclination angle is optimized by designing the fan blades which are uniformly bent and swept, the aerodynamics of the impeller can be enhanced, the flow loss inside the impeller is reduced, the air flow organization can be improved by the design of, reduce the vortex, further improve impeller efficiency, have extensive application prospect.

Description

FFU high-efficiency impeller

Technical Field

The utility model relates to a FFU fan technical field specifically is the high-effect impeller of FFU.

Background

The Fan Filter Unit sucks air from the top, filters the air through HEPA, and uniformly sends out filtered clean air at a net speed of about 0.45M/S +/-20% on the whole air outlet surface, the FFU Fan Filter Unit can be modularly connected for use, the FFU Fan Filter Unit is widely applied to a dustless room, a dustless operating platform, a dustless production line, an assembled dustless room, a local hundred-grade application occasion and the like, each FFU is provided with a Fan, the Fan is generally arranged at the top of the FFU, the Fan drives an impeller arranged on a transmission shaft of the FFU to suck external air into the FFU, the impeller of the conventional FFU Fan is shaped in structure, the stability is to be perfect, the aerodynamics of the impeller are poor, and the air guide amplitude in the impeller is general, the loss of flowing is great, and the air inlet forms the torrent easily, has reduced the air input, and efficiency hardly has the promotion again, so, need design the high-effect impeller of FFU, improve impeller efficiency, further promote overall efficiency to solve current problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-effect impeller of FFU, through evenly having the strengthening rib bottom the rim plate, the mechanical strength on chassis has been increased, make the chassis more stable in rotatory process, through the fan blade that sweeps through the design isopachous, make the fan blade inclination optimize, can strengthen the pneumatics of impeller, reduce the inside flow loss of impeller, design through the loudspeaker wind gap of air intake, can improve the air current tissue, reduce the torrent of air inlet, improve the air input, setting through the back up ring, the air intake stability has been increased, rim plate through designing arc convex surface, make the chassis curved surface optimize, can increase the wind-guiding range, reduce the vortex, further improve impeller efficiency, in order to solve the problem of proposing among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme:

high-effect impeller of FFU, including the chassis, the chassis comprises solid fixed ring and rim plate integrated into one piece, just the rim plate is connected at solid fixed ring inboard, the structure of arc convex surface is established to the rim plate, just rim plate bottom evenly distributed has the strengthening rib, the rim plate center is connected with the spiale seat, the shaft hole has been seted up at spiale seat center, just the inboard cover in shaft hole is equipped with the axle sleeve, the chassis top evenly is connected with six fan blades, just equidistant setting between the fan blade, establish respectively at the edge of the inside and outside both sides of fan blade to indent arc limit and evagination arc limit, the fan blade top all is connected with the apron, the inboard top of apron is equipped with the air intake, the reinforcing ring has been cup jointed to air.

Further, the outer diameter of the base plate is equal to that of the cover plate, and the edges of the base plate are arranged in a mutually flat mode.

Further, the locating slot has been seted up to the shaft hole inboard, the axle sleeve outside is connected with the location arch, just the protruding nestification of location is in the locating slot.

Furthermore, the fan blades are designed to be curved and swept blades with equal thickness, and the fan blades surround the center of the chassis and extend obliquely in the spiral direction.

Further, the outer side surface of the fan blade is uniformly coated with a wear-resistant layer.

Furthermore, the air inlet and the cover plate are integrally formed, and the radius of the air inlet is larger than the distance from the inner end of the fan blade to the axis.

Compared with the prior art, the beneficial effects of the utility model are that: this high-effect impeller of FFU, moreover, the steam generator is simple in structure, and is reliable and stable, the installation of being convenient for, through evenly having the strengthening rib bottom the rim plate, the mechanical strength on chassis has been increased, make the chassis more stable in rotatory process, through the fan blade that sweeps through the design isopachous, make the fan blade inclination optimize, can strengthen the pneumatics of impeller, reduce the inside flow loss of impeller, the design of the horn wind gap through the air intake, can improve the air current tissue, reduce the torrent of air inlet, improve the air input, setting through reinforcing ring, the air intake stability has been increased, rim plate through designing the arc convex surface, make the chassis curved surface optimize, can increase the wind-guiding range, reduce the vortex, further improve impeller efficiency, so this high-effect impeller of FFU has wide application market.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;

fig. 2 is a schematic view of the overall side structure of the present invention;

fig. 3 is a schematic top view of the present invention;

FIG. 4 is a bottom structure diagram of the chassis of the present invention;

reference numbers in the figures: 1. a chassis; 2. a fixing ring; 3. a wheel disc; 4. reinforcing ribs; 5. connecting a shaft seat; 6. a shaft hole; 7. a shaft sleeve; 8. a fan blade; 9. an inwardly concave arc-shaped edge; 10. an outwardly convex arcuate edge; 11. a cover plate; 12. an air inlet; 13. reinforcing rings; 14. positioning a groove; 15. and a positioning projection.

Detailed Description

The embodiments of the present invention will be described with reference to the accompanying drawings, and it should be understood that the embodiments described herein are merely for purposes of illustration and explanation and are not intended to limit the invention.

As shown in fig. 1-4, the utility model provides a technical solution: the FFU high-efficiency impeller comprises a chassis 1, wherein the chassis 1 is formed by integrally forming a fixing ring 2 and a wheel disc 3, the wheel disc 3 is connected to the inner side of the fixing ring 2, the FFU high-efficiency impeller is simple in structure and convenient to form by injection molding through a mold, the wheel disc 3 is of an arc convex surface structure, the curved surface of the chassis 1 is optimized, the air guide amplitude can be increased, the eddy current is reduced, reinforcing ribs 4 are uniformly distributed at the bottom of the wheel disc 3, the mechanical strength of the chassis 1 is increased, the chassis 1 is more stable in the rotating process, a shaft connecting seat 5 is connected to the center of the wheel disc 3, a shaft hole 6 is formed in the center of the shaft connecting seat 5, a shaft sleeve 7 is sleeved on the inner side of the shaft hole 6, the FFU high-efficiency impeller is conveniently and firmly sleeved on a rotating shaft of a motor, the FFU high-efficiency impeller is convenient, can strengthen the aerodynamic of impeller, reduce the inside flow loss of impeller, effective conduction air current direction, 8 tops of fan blade all are connected with

apron

11, 11 inboard tops of apron are equipped with air intake 12, reinforcing ring 13 has been cup jointed to 12 top inboards of air intake, has increased the stability of air intake 12, just air intake 12 establishes to the structure of loudspeaker form, can improve the air current tissue, reduces the torrent of air inlet, has improved the air input, has promoted impeller efficiency.

More specifically, the external diameter of chassis 1 equals with the external diameter of apron 11, just the edge of chassis 1 sets up flat each other, and stable in structure is reliable, and the appearance is pleasing to the eye, constant head tank 14 has been seted up to shaft hole 6 inboard, axle sleeve 7 outside is connected with location arch 15, just location arch 15 nestification is in constant head tank 14, can firmly fix axle sleeve 7 for it is more firm in installing in the pivot of motor, fan blade 8 is set up to the sweepback blade of uniform thickness, just fan blade 8 centers on the centre of a circle of chassis 1 and according to the slope of spiral direction extension, makes the optimization of fan blade 8 inclination, can strengthen the pneumatics of impeller, reduces the inside flow loss of impeller, has improved impeller efficiency, the even coating in fan blade 8 outside surface has the wearing layer, has increased the wearability of fan blade 8, increase of service life, air intake 12 sets up the integrated into one piece, and the radius of the air inlet 12 is larger than the distance from the inner end of the fan blade 8 to the axis, so that the air flow structure is improved, the air flow can conveniently enter the impeller from the air inlet 12, and the air inflow is improved.

The utility model discloses improve in: the FFU high-efficiency impeller has the advantages that the reinforcing ribs 4 are uniformly arranged at the bottom of the wheel disc 3, the mechanical strength of the chassis 1 can be increased, the chassis 1 is more stable in the rotating process, the shaft sleeve 7 is sleeved in the connecting shaft seat 5, the FFU high-efficiency impeller is convenient to firmly install on a rotating shaft of a motor, the fan blades 8 which are uniformly bent and swept are designed, the inclination angle of each fan blade 8 is optimized, the aerodynamics of the impeller can be enhanced, the flow loss inside the impeller is reduced, the flow of airflow can be well guided by arranging the concave arc-shaped edge 9 and the convex arc-shaped edge 10 on the inner side and the outer side of each fan blade 8, the aerodynamics are improved, the air flow organization can be improved through the design of the horn wind port of the air inlet 12, the turbulence of the air inlet is reduced, the air inflow is improved, the stability of the air inlet 12 is improved through the arrangement, reduce the vortex, further improve impeller efficiency.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments described above, or equivalent substitutions and improvements can be made to some of the technical features of the embodiments described above.

Claims

High-effect impeller of FFU, including chassis (1), its characterized in that: the chassis (1) is formed by integrally forming a fixing ring (2) and a wheel disc (3), the wheel disc (3) is connected to the inner side of the fixing ring (2), the wheel disc (3) is of an arc convex surface structure, reinforcing ribs (4) are uniformly distributed at the bottom of the wheel disc (3), a shaft connecting seat (5) is connected to the center of the wheel disc (3), a shaft hole (6) is formed in the center of the shaft connecting seat (5), a shaft sleeve (7) is sleeved on the inner side of the shaft hole (6), six fan blades (8) are uniformly connected to the top of the chassis (1), the fan blades (8) are arranged at equal intervals, the edges of the inner side and the outer side of each fan blade (8) are respectively arranged to be an inner concave arc edge (9) and an outer convex arc edge (10), the tops of the fan blades (8) are connected with a cover plate (11), an air inlet (12) is formed in the top, and the air inlet (12) is of a horn-shaped structure.
2. The FFU high capacity impeller of claim 1, wherein: the outer diameter of the chassis (1) is equal to that of the cover plate (11), and the edges of the chassis (1) are arranged in a mutually flat mode.
3. The FFU high capacity impeller of claim 1, wherein: locating slot (14) have been seted up to shaft hole (6) inboard, axle sleeve (7) outside is connected with location arch (15), just location arch (15) nestification is in locating slot (14).
4. The FFU high capacity impeller of claim 1, wherein: the fan blades (8) are arranged to be swept-curved blades with equal thickness, and the fan blades (8) surround the circle center of the chassis (1) and extend obliquely in the spiral direction.
5. The FFU high capacity impeller of claim 1, wherein: the outer side surface of the fan blade (8) is uniformly coated with a wear-resistant layer.
6. The FFU high capacity impeller of claim 1, wherein: the air inlet (12) and the cover plate (11) are of an integrally formed structure, and the radius of the air inlet (12) is larger than the distance from the inner end of the fan blade (8) to the axis.