CN214742351U - Fan assembly and courtyard machine - Google Patents
Fan assembly and courtyard machine Download PDFInfo
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- CN214742351U CN214742351U CN202120738156.5U CN202120738156U CN214742351U CN 214742351 U CN214742351 U CN 214742351U CN 202120738156 U CN202120738156 U CN 202120738156U CN 214742351 U CN214742351 U CN 214742351U
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- fan blade
- centrifugal fan
- diameter
- water conservancy
- conservancy diversion
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Abstract
The utility model provides a fan subassembly, courtyard machine. The fan assembly comprises a centrifugal fan blade and a flow guide ring, wherein the flow guide ring is arranged at an air inlet of the centrifugal fan blade, the minimum diameter of the flow guide ring is larger than the diameter of the air inlet of the centrifugal fan blade, and part of the flow guide ring surrounds the periphery of the centrifugal fan blade. The utility model provides a fan subassembly, raise boring machine, the diameter that makes the air intake matched with part of water conservancy diversion circle and centrifugal fan blade is greater than centrifugal fan's air intake diameter, thereby the air inlet that makes centrifugal fan blade no longer receives the influence of the diameter of water conservancy diversion circle, thereby improve centrifugal fan blade air intake and improve fan subassembly performance, simultaneously the vortex portion of water conservancy diversion circle and the outside cooperation back of the air intake curb plate of centrifugal fan blade, it flows to have changed the admission, change the gas direction of the vortex district around the air intake curb plate, cause backward flow wind loss of pressure to improve, improve the air input and sealed effect, the effectual noise that improves.
Description
Technical Field
The utility model relates to an air treatment equipment technical field, especially a fan subassembly, courtyard machine.
Background
The raise-level machine is internally provided with centrifugal blades, a flow guide ring is adopted for guiding the air flow of the air inlet of the centrifugal fan, in order to ensure the air quantity of the raise-level machine in the prior art, the diameter of the centrifugal blades is generally increased or the thickness of the centrifugal blades and the overall thickness of the raise-level machine are generally increased, but the problems that the internal structure of the raise-level machine is complex and the occupied space of the raise-level machine is increased are caused.
SUMMERY OF THE UTILITY MODEL
Utility model people discover through the research, and the water conservancy diversion circle stretches into the inside of centrifugal fan blade and can make the actual size of the air intake of centrifugal fan blade be the diameter of water conservancy diversion circle and rather than the diameter of its air intake structure, simultaneously because the water conservancy diversion circle stretches into the inside of centrifugal fan blade for fan blade height in the centrifugal fan blade also needs to reduce, and both all can influence the air inlet amount of wind of centrifugal fan blade.
Therefore, the application provides a fan assembly and a courtyard machine which enable the diameter of the part of the guide ring matched with the air inlet of the centrifugal fan blade to be larger than the diameter of the air inlet of the centrifugal fan and overcome the influence of the guide ring on the centrifugal fan blade.
The utility model provides a fan assembly, includes centrifugal fan blade and water conservancy diversion circle, the water conservancy diversion circle sets up in the air intake department of centrifugal fan blade, part the water conservancy diversion circle encircle in the week side of centrifugal fan blade, and encircle in week side of centrifugal fan blade the diameter of the part of water conservancy diversion circle is greater than the diameter of the air intake of centrifugal fan blade.
The water conservancy diversion circle includes vortex portion, centrifugal fan blade includes the air intake curb plate, vortex portion encircle in week side of air intake curb plate, just vortex portion with the interval has between the air intake curb plate.
The water conservancy diversion circle is followed including fixed part, the water conservancy diversion portion that is used for leading to the air current and vortex portion that play the fixed action the axis direction of centrifugation fan blade, the fixed part water conservancy diversion portion with vortex portion connects gradually, vortex portion encircle in week side of centrifugation fan blade.
The shape of the turbulent flow part is the same as that of the air inlet side plate.
Follow the air inlet direction of fan subassembly, the diameter of fixed part reduces gradually, the diameter of vortex portion increases gradually, just the minimum diameter of fixed part the minimum diameter of vortex portion with the diameter of water conservancy diversion portion equals, the diameter of water conservancy diversion portion is greater than the diameter of the air intake of centrifugal fan blade.
The diameter D2 of water conservancy diversion portion and the diameter D1 of the air intake of centrifugal fan blade relation is: 0mm < D2-D1<8 mm.
The diameters of the flow guide parts are the same from the fixing part to the flow disturbing part.
The direction that the water conservancy diversion portion kept away from the fixed part extends and forms extension portion, vortex portion set up in on the extension portion, just extension portion surround in week side of centrifugal fan blade.
The length range of water conservancy diversion portion is 15mm to 30 mm.
A courtyard machine comprises the fan assembly.
The utility model provides a fan subassembly, raise boring machine, make the diameter of the part of the air intake matched with water conservancy diversion circle with centrifugal fan blade be greater than centrifugal fan's air intake diameter, thereby make the air inlet amount of wind of centrifugal fan blade no longer receive the influence of water conservancy diversion circle, thereby improve centrifugal fan blade air intake, improve fan subassembly performance, simultaneously the vortex portion of water conservancy diversion circle and the outside cooperation back of the air intake curb plate of centrifugal fan blade, it flows to have changed the admit air, the air inlet is relative state with the air current in vortex district, change the gas direction in vortex district around the air intake curb plate, cause backward flow wind loss of pressure to improve, improve the air input and sealed effect, simultaneously will utilize extension portion to increase the length of water conservancy diversion portion, thereby extension air inlet distance, effectual improvement noise.
Drawings
FIG. 1 is a schematic view of a structure of a centrifugal fan blade and a flow guide ring in the prior art;
FIG. 2 is a schematic view of air intake and vortex regions of a centrifugal fan blade and a flow guide ring in the prior art;
fig. 3 is a schematic structural diagram of a fan assembly of an embodiment of a fan assembly and a raise boring machine provided by the present invention;
fig. 4 is a schematic structural diagram of a flow guiding ring of an embodiment of a fan assembly and a raise boring machine provided by the present invention;
fig. 5 is a schematic view of the air intake and vortex regions of the centrifugal fan blades and the baffle ring of the embodiment of the fan assembly and the raise boring machine provided by the present invention;
in the figure:
1. a centrifugal fan blade; 2. a flow guide ring; 11. an air inlet; 21. a fixed part; 22. a flow guide part; 23. a spoiler portion; 12. an air inlet side plate; 101. a vortex region.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the prior art, the end of the flow guiding ring needs to extend into the air inlet of the centrifugal fan blade, so that the flow guiding ring and the centrifugal fan blade form an inner fit, but because the flow guiding ring needs to extend into the inside of the centrifugal fan blade, the actual size of the air inlet of the centrifugal fan blade is the diameter of the flow guiding ring but not the diameter of the air inlet structure of the flow guiding ring, and because the flow guiding ring extends into the inside of the centrifugal fan blade, the height of the fan blade in the centrifugal fan blade needs to be reduced, and both of the flow guiding ring and the fan blade can influence the air inlet amount of the centrifugal fan blade, therefore, the present application provides a fan assembly as shown in fig. 3 to 5, which comprises a centrifugal fan blade 1 and a flow guiding ring 2, wherein the flow guiding ring 2 is arranged at the air inlet 11 of the centrifugal fan blade 1, part of the flow guiding ring 2 surrounds the peripheral side of the centrifugal fan blade 1, and the diameter of the flow guiding ring 2 surrounding the peripheral side of the centrifugal fan blade 1 is larger than the diameter of the air inlet 11 of the centrifugal fan blade 1, therefore, the air inlet of the centrifugal fan blade 1 is not influenced by the diameter of the guide ring 2 any more, an external matching structure is formed between the guide ring 2 and the centrifugal fan blade 1, the guide ring 2 does not need to extend into the centrifugal fan blade, the actual diameter of the air inlet of the centrifugal fan blade is the structural size of the air inlet of the centrifugal fan blade and is not limited by the guide ring 2 any more, the air inlet amount of the centrifugal fan blade is ensured, meanwhile, the height of the centrifugal fan blade does not need to be reduced because the guide ring 2 does not extend into the centrifugal fan blade, the air inlet amount of the centrifugal fan blade is further increased, namely, the matching of the guide ring 2 and the centrifugal fan blade 1 does not influence the centrifugal fan blade 1 any more, the air amount of the centrifugal fan blade is increased as much as possible compared with the prior art, and meanwhile, when maintenance is carried out, whether the guide ring 2 or the centrifugal fan blade 1 deforms to cause friction or not can be conveniently checked, and the maintenance and inspection difficulty is reduced.
The flow guide ring 2 comprises a flow disturbance part 23, the centrifugal fan blade 1 comprises an air inlet side plate 12, the flow disturbance part 23 surrounds the periphery of the air inlet side plate 12, a gap is formed between the flow disturbance part 23 and the air inlet side plate 12, the phenomenon that the normal work of the centrifugal fan blade 1 is influenced due to the fact that the flow guide ring 2 and the centrifugal fan blade 1 generate direct structural interference is avoided, meanwhile, part of air inlet of the flow guide ring 2 can enter a vortex area 101 through the gap, the air flow direction at the gap is changed, therefore, the air pressure loss during air backflow is enhanced, the air volume loss is not easy to cause, the air inlet volume and the sealing effect are improved, the air inlet volume of the centrifugal fan blade 1 is improved, the performance of a fan assembly is improved, the air inlet flow is further increased, the noise is improved, as shown in figures 2 and 5, the arrow direction is the air flow direction, and as shown in figure 2, the air flow direction of the vortex area 101 in the prior art is the same as the air flow direction of an air inlet, in fig. 5, the airflow direction of the vortex area 101 in the present embodiment is opposite to the airflow direction of the air inlet.
The water conservancy diversion circle 2 is including fixed part 21, the water conservancy diversion portion 22 and the vortex portion 23 that are used for leading to the air current of playing the fixed action, follows the axis direction of centrifugal fan blade 1, fixed part 21 water conservancy diversion portion 22 with vortex portion 23 connects gradually, vortex portion 23 surround in week side of centrifugal fan blade 1 is to going into the gas of centrifugal fan blade 1 through water conservancy diversion portion 22 and is carried out the water conservancy diversion, utilizes vortex portion 23 to carry out the vortex influence to the air current in the produced vortex district 101 of week side of centrifugal fan blade 1 among the prior art simultaneously, changes vortex district 101 backflow gas's direction promptly, causes backflow wind loss of pressure to improve, reaches improvement air input and sealed effect.
Preferably, the guide ring 2 is arranged on a shell of an indoor unit or a shell of a raise-level machine.
The shape of vortex portion 23 with the shape of air intake curb plate 12 is the same, guarantees that the interval between vortex portion 23 and the air intake curb plate 12 is even, and is preferred, the shape of vortex portion 23 with the shape of air intake curb plate 12 is the arc.
Follow the air inlet direction of fan subassembly, the diameter of fixed part 21 reduces gradually, the diameter of vortex portion 23 increases gradually, just the minimum diameter of fixed part 21 the minimum diameter of vortex portion 23 with the diameter of water conservancy diversion portion 22 equals, the diameter of water conservancy diversion portion 22 is greater than the diameter of the air intake 11 of centrifugal fan blade 1 guarantees that water conservancy diversion circle 2 forms outer cooperation with the air intake of centrifugal fan blade, and vortex portion 23 can produce reasonable interval cooperation with centrifugal fan blade 1 simultaneously, carries out the vortex to the gas in vortex district 101 to change vortex district 101 backflow gas direction, cause backflow wind loss of pressure to improve, improve the air input and sealed effect.
The diameter D2 of the diversion part 22 and the diameter D1 of the air inlet 11 of the centrifugal fan blade 1 have the following relationship: 0mm < D2-D1<8mm, the problem that the gas cannot be effectively guided due to the fact that the diameter D2 of the guide part 22 is too large to cause leakage of the gas from a gap between the guide part 22 and an air inlet of the centrifugal fan blade 1 is solved, and meanwhile, the problem that the diameter D2 of the guide part 22 is too small to interfere with the structure of the centrifugal fan blade and influence the structural reliability of the centrifugal fan blade and the fan assembly is avoided.
From the fixing portion 21 to the spoiler portion 23, the diameters of the flow guide portions 22 are the same, that is, the flow guide portions 22 are straight pipe sections, so that an air inlet flow path is increased, and noise is improved.
The length scope of water conservancy diversion portion 22 is 15mm to 30mm, avoids the oversize of water conservancy diversion portion 22 to influence the amount of wind, avoids the size of water conservancy diversion portion 22 too short simultaneously and can't realize the water conservancy diversion effect.
A courtyard machine comprises the fan assembly.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a fan subassembly, includes centrifugal fan blade (1) and water conservancy diversion circle (2), its characterized in that: the part the water conservancy diversion circle (2) encircle the week side of centrifugal fan blade (1), and encircle in the week side of centrifugal fan blade (1) the diameter of the part of water conservancy diversion circle (2) is greater than the diameter of air intake (11) of centrifugal fan blade (1).
2. The fan assembly of claim 1, wherein: the water conservancy diversion circle (2) is including vortex portion (23), centrifugal fan blade (1) is including air intake curb plate (12), vortex portion (23) encircle in week side of air intake curb plate (12), just vortex portion (23) with the interval has between air intake curb plate (12).
3. The fan assembly of claim 2, wherein: the shape of the turbulent flow part (23) is the same as that of the air inlet side plate (12).
4. The fan assembly of claim 1, wherein: flow guide ring (2) are followed including fixed part (21), the water conservancy diversion portion (22) and the vortex portion (23) that are used for leading the air current of playing the fixed action the axis direction of centrifugal fan blade (1), fixed part (21) water conservancy diversion portion (22) with vortex portion (23) connect gradually, vortex portion (23) encircle in week side of centrifugal fan blade (1).
5. The fan assembly of claim 4, wherein: follow the air inlet direction of fan subassembly, the diameter of fixed part (21) reduces gradually, the diameter of vortex portion (23) increases gradually, just the minimum diameter of fixed part (21), the minimum diameter of vortex portion (23) with the diameter of water conservancy diversion portion (22) equals, the diameter of water conservancy diversion portion (22) is greater than the diameter of air intake (11) of centrifugal fan blade (1).
6. The fan assembly of claim 4, wherein: the diameter D2 of the guide part (22) and the diameter D1 of the air inlet (11) of the centrifugal fan blade (1) are in a relation that: 0mm < D2-D1<8 mm.
7. The fan assembly of claim 4, wherein: the diameters of the flow guide parts (22) are the same in the direction from the fixing part (21) to the flow disturbing part (23).
8. The fan assembly of claim 4, wherein: diversion portion (22) are kept away from the direction of fixed part (21) extends and forms extension portion, vortex portion (23) set up in on the extension portion, just extension portion surround in week side of centrifugal fan blade (1).
9. The fan assembly of claim 4, wherein: the length range of the flow guide part (22) is 15mm to 30 mm.
10. A raise boring machine, characterized by: comprising a fan assembly according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120738156.5U CN214742351U (en) | 2021-04-12 | 2021-04-12 | Fan assembly and courtyard machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120738156.5U CN214742351U (en) | 2021-04-12 | 2021-04-12 | Fan assembly and courtyard machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214742351U true CN214742351U (en) | 2021-11-16 |
Family
ID=78602254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120738156.5U Active CN214742351U (en) | 2021-04-12 | 2021-04-12 | Fan assembly and courtyard machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214742351U (en) |
-
2021
- 2021-04-12 CN CN202120738156.5U patent/CN214742351U/en active Active
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