CN212690456U - Air supply assembly and air conditioning system - Google Patents
Air supply assembly and air conditioning system Download PDFInfo
- Publication number
- CN212690456U CN212690456U CN202021480212.1U CN202021480212U CN212690456U CN 212690456 U CN212690456 U CN 212690456U CN 202021480212 U CN202021480212 U CN 202021480212U CN 212690456 U CN212690456 U CN 212690456U
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- tooth
- air supply
- vortex
- water conservancy
- conservancy diversion
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Abstract
The utility model provides an air supply subassembly and air conditioning system. The air supply assembly includes: a flow guide ring; the fan blade is arranged in the flow guide ring, and a blade top gap is formed between the blade top edge of the fan blade and the inner surface of the flow guide ring; and the plurality of turbulence tooth structures are arranged on the inner surface of the guide ring corresponding to the blade top gaps, and the tooth tops of all the turbulence tooth structures point to the fan blades. The utility model provides an air supply assembly and air conditioning system, at the inside tooth-shaped vortex tooth structure that sets up of water conservancy diversion circle, utilize the tooth top part to restrain the production of vortex, and can split the vortex that produces, thereby the noise that the vortex in blade top clearance produced has been reduced, and can also utilize vortex tooth structure to reduce the backward flow in blade top clearance, the amount of wind of air supply assembly has been increased, three water conservancy diversion section can reduce the high-speed loss that flows of air current, the air input of fan blade import department has been increased, the noise in air supply assembly exit has been reduced.
Description
Technical Field
The utility model relates to a gas conveying device's technical field, especially an air supply subassembly and air conditioning system.
Background
Noise generated by rotating machinery is mainly divided into discrete noise and broadband noise. The broadband noise is also called eddy noise, and is mainly generated by eddy in the system, and occupies a large proportion of the total noise value, and mainly affects the noise level heard by human ears. In addition, the vortex can bring loss to the system and reduce the performance of the air supply assembly, and bosses or groove structures are arranged on the inner wall of the guide ring and the fan blades to inhibit backflow generated by a blade top gap in the prior art, but airflow rotating at a high speed generates noise in a concave-convex slit due to high-speed flowing, and the problem of interference caused by deformation and vibration in the radial direction and the axial direction due to high-speed rotation of the fan blades is solved.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems that the vortex generates noise and reduces the performance of the air supply assembly in the prior art, the air supply assembly and the air conditioning system can inhibit and split the vortex so as to reduce the noise and increase the performance of the air supply assembly.
An air delivery assembly comprising:
a flow guide ring;
the fan blade is arranged in the flow guide ring, and a blade top gap is formed between the blade top edge of the fan blade and the inner surface of the flow guide ring;
and the plurality of turbulence tooth structures are arranged on the inner surface of the guide ring corresponding to the blade top gaps, and tooth tops of all the turbulence tooth structures point to the fan blades.
Each flow disturbing tooth structure comprises a plurality of strip-shaped teeth, all the strip-shaped teeth are arranged in parallel along the axis direction of the fan blade, and tooth tops of all the strip-shaped teeth point to the fan blade.
And the tooth heights of all the strip-shaped teeth in the same spoiler tooth structure are gradually reduced along the axis direction of the fan blade.
The vortex tooth structure includes a plurality of first vortex tooth subassemblies and a plurality of second vortex tooth subassembly, all first vortex tooth subassembly and all second vortex tooth subassembly interval sets up, just the tooth height change direction of first vortex tooth subassembly with the tooth height change opposite direction of second vortex tooth subassembly.
The tooth height of the bar-shaped teeth in the first turbulence tooth assembly is gradually reduced along a first direction of the axis of the fan blade, and the tooth height of the bar-shaped teeth in the second turbulence tooth assembly is gradually reduced along a second direction of the axis of the fan blade.
And a strip-shaped mounting area is formed on the inner surface of the flow guide ring corresponding to the blade top gap, the width of the strip-shaped mounting area is H, the width of the turbulence tooth structure is H, H is less than 2H, and all the turbulence tooth structures are arranged in the strip-shaped mounting area.
The banding mounting region has relative first border and second border, the border of first vortex tooth subassembly with first border coincidence, the border of second vortex tooth subassembly with the second border coincidence.
On the same plane where the axis of the flow guide ring is located, the size of a part, overlapped by the projection of the first turbulence tooth assembly and the projection of the second turbulence tooth assembly, of the projection of the first turbulence tooth assembly is smaller than the width of one strip-shaped tooth.
The number of the strip-shaped teeth is three.
The vortex tooth structure is arranged on the guide ring corresponding to the vortex core of the fan blade, wherein the vortex core of the fan blade is obtained by using simulation software.
The width of the band-shaped mounting region is greater than or equal to the corresponding dimension of the vortex core.
Along the air current direction, the water conservancy diversion circle is including the first water conservancy diversion section and the second water conservancy diversion section that set gradually, first water conservancy diversion section is loudspeaker column structure, and follows and be close to the direction of second water conservancy diversion section, the diameter of first water conservancy diversion section reduces gradually, the second water conservancy diversion section is pipe column structure, just pipe column structure's diameter with loudspeaker column structure's minimum diameter equals, vortex tooth structure set up in on the second water conservancy diversion section.
The section of the first flow guide section is trapezoidal, and the angle range of the bottom angle of the trapezoid of the first flow guide section is 45-90 degrees.
The end part, far away from the second guide section, of the first guide section is provided with a first rounding structure, and the radius range of the first rounding structure is 0.26-0.3 times of the diameter of the fan blade.
The water conservancy diversion circle still includes the third water conservancy diversion section, the third water conservancy diversion section set up in the second water conservancy diversion section is kept away from the one end of first water conservancy diversion section, just the third water conservancy diversion section is loudspeaker form, and along keeping away from the direction of second water conservancy diversion section, the diameter of third water conservancy diversion section increases gradually.
The section of the third flow guide section is trapezoidal, and the angle range of the bottom angle of the trapezoid of the third flow guide section is 45-90 degrees.
And a second rounding structure is arranged at the end part of the third flow guide section far away from the second flow guide section, and the radius of the second rounding structure is 0.08-0.15 times of the diameter of the fan blade.
An air conditioning system comprises the air supply assembly.
The utility model provides an air supply assembly and air conditioning system, at the inside tooth-shaped vortex tooth structure that sets up of water conservancy diversion circle, utilize the tooth top part to restrain the production of vortex, and can split the vortex that produces, thereby the noise that the vortex in blade top clearance produced has been reduced, and can also utilize vortex tooth structure to reduce the backward flow in blade top clearance, the amount of wind of air supply assembly has been increased, three water conservancy diversion section can reduce the high-speed loss that flows of air current, the air input of fan blade import department has been increased, the noise in air supply assembly exit has been reduced.
Drawings
Fig. 1 is a schematic structural diagram of an air supply assembly and an air conditioning system according to an embodiment of the present invention;
fig. 2 is an exploded view of an air supply assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a first spoiler tooth assembly and a second spoiler tooth assembly of an embodiment of an air supply assembly and an air conditioning system provided by the present invention;
fig. 4 is a schematic projection view of the first spoiler tooth assembly and the second spoiler tooth assembly of the embodiment of the air supply assembly and the air conditioning system provided by the present invention;
fig. 5 is a schematic single-side profile view of a deflector ring according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a simulation of a vortex core according to an embodiment of the air supply assembly and the air conditioning system provided by the present invention;
in the figure:
1. a flow guide ring; 2. a fan blade; 3. a spoiler tooth structure; 4. a bar-shaped tooth; 31. a first spoiler tooth assembly; 32. a second spoiler tooth assembly; 11. a strip-shaped mounting area; 12. a first flow guide section; 13. a second flow guide section; 14. a third flow guide section; 15. a first radius structure; 16. the second rounding structure.
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.
The air supply assembly shown in fig. 1 to 6 includes:
a flow guide ring 1;
the fan blade 2 is arranged in the flow guide ring 1, a blade top gap is formed between the blade top edge of the fan blade 2 and the inner surface of the flow guide ring 1, the fan blade 2 has a pushing effect on airflow in the rotation process, the blade top gap is required to be arranged in order to avoid interference between the fan blade 2 and the flow guide ring 1, but vortex and backflow are generated due to the blade top gap, vortex noise is generated due to the vortex, and the backflow causes air volume loss of the fan blade 2;
the vortex splitting device comprises a plurality of vortex tooth structures 3, wherein each vortex tooth structure 3 is a tooth in a shape of a cutting edge, so that a vortex can be split by utilizing the cutting action of the edge of the cutting edge, and because the tooth is high, the radial distance between the fan blade 2 and the flow guide ring 1 can be reduced, namely, the size of a blade top gap is reduced, and a labyrinth sealing effect is generated, so that the effects of vortex flow, vortex flow inhibition and splitting and backflow reduction are realized, all the vortex tooth structures 3 are arranged on the inner surface of the flow guide ring 1 corresponding to the blade top gap, the tooth tops of all the vortex tooth structures 3 point to the fan blade 2, namely, the plurality of vortex tooth structures 3 correspond to the fan blade 2, vortex flow in the blade top gap is inhibited and split, so that the noise generated by the vortex flow is effectively reduced, and the labyrinth sealing is formed between the vortex tooth structures 3 and the blade tops of the fan blade 2, therefore, the return loss is effectively inhibited, the air quantity of the air supply assembly is increased, and the efficiency is improved.
The fan blade 2 is preferably an axial flow fan blade.
Each spoiler tooth structure 3 includes a plurality of bar teeth 4, and all bar teeth 4 set up side by side along the axis direction of fan blade 2, and all the addendum of bar tooth 4 all points to fan blade 2, and is special, each bar tooth 4 is the tooth shape, has structures such as addendum, tooth height, flank profile to constitute cutting edge shape at the addendum position.
Along the axial direction of the fan blade 2, the tooth heights of all the strip-shaped teeth 4 in the same turbulence tooth structure 3 are gradually reduced to form a gradually-decreasing or gradually-increasing shape, so that the splitting effect on the vortex is increased.
The spoiler tooth structure 3 comprises a plurality of first spoiler tooth assemblies 31 and a plurality of second spoiler tooth assemblies 32, all of the first spoiler tooth assemblies 31 and all of the second spoiler tooth assemblies 32 are arranged at intervals, and the tooth height change direction of the first spoiler tooth assemblies 31 is opposite to the tooth height change direction of the second spoiler tooth assemblies 32.
The tooth height of the strip-shaped teeth 4 in the first spoiler tooth assembly 31 is gradually reduced along a first direction of the axis of the fan blade 2, the tooth height of the strip-shaped teeth 4 in the second spoiler tooth assembly 32 is gradually reduced along a second direction of the axis of the fan blade 2, that is, according to the first direction, the tooth height of the strip-shaped teeth 4 in the first spoiler tooth assembly 31 is gradually reduced, and the tooth height of the strip-shaped teeth 4 in the second spoiler tooth assembly 32 is gradually increased, so that the gap between partial blade tips is gradually increased, the gap between partial blade tips is gradually reduced, and the splitting effect on the vortex is further increased.
The inner surface of the guide ring 1 corresponding to the blade top gap is provided with a strip-shaped installation area 11, the width of the strip-shaped installation area 11 is H, the width of the turbulent flow tooth structure 3 is H, H is smaller than H and smaller than 2H, all the turbulent flow tooth structures 3 are arranged in the strip-shaped installation area 11, the strip-shaped installation area 11 is an annular area with a cross section parallel to the end surface of the guide ring 1, the width of the strip-shaped installation area 11 is the size of the strip-shaped installation area 11 in the axial direction of the guide ring 1, and the size of the turbulent flow tooth structure 3 is the sum of the tooth root widths of all strip-shaped teeth 4 in the turbulent flow tooth structure or the size of the turbulent flow tooth structure 3 in the axial direction of the guide ring 1.
On the plane where the axis of the same flow guiding ring 1 is located, the size of the part where the projection of the first spoiler tooth assembly 31 and the projection of the second spoiler tooth assembly 32 overlap is smaller than the width of one bar-shaped tooth 4, and when viewed from the plane passing through the axis of the flow guiding ring 1, the projection where four independent bar-shaped teeth 4 and two strip-shaped convex parts in the middle overlap can be seen, and the height of the projection is gradually increased and then gradually decreased, so that the effects of suppressing and splitting the vortex are increased.
The specific number of the strip-shaped teeth 4 is determined according to the band-shaped mounting region 11 and/or the actual requirements, and is preferably three.
The spoiler tooth structure 3 is arranged on the flow guide ring 1 corresponding to the vortex core of the fan blade 2, wherein the vortex core of the fan blade 2 is obtained by using simulation software, the position of the vortex core obtained by simulation in the simulation software is shown as D in fig. 6, and if a pressure distribution cloud chart of the surface of the suction surface of the fan blade 2 is obtained by using numerical simulation, the position where the pressure on the surface of the suction surface of the fan blade 2 is minimum, namely the position of the vortex core, is determined, the spoiler tooth structure 3 corresponds to the position of the vortex core generated by the fan blade 2, the vortex core is directly inhibited and split, and the inhibiting and splitting effects are improved.
The width of the strip-shaped mounting area 11 is larger than or equal to the corresponding size of the vortex core, so that the suppression and splitting effects of the turbulence tooth structures 3 on the vortex are guaranteed, and meanwhile, the turbulence tooth structures 3 are prevented from influencing the airflow in the flow guide ring 1.
Along the air current direction, water conservancy diversion circle 1 is including the first water conservancy diversion section 12 and the second water conservancy diversion section 13 that set gradually, first water conservancy diversion section 12 is loudspeaker column structure, and follows and be close to the direction of second water conservancy diversion section 13, the diameter of first water conservancy diversion section 12 reduces gradually, second water conservancy diversion section 13 is the pipe column structure, just the diameter of pipe column structure with the minimum diameter of loudspeaker column structure equals, vortex tooth structure 3 set up in on the second water conservancy diversion section 13, also make the air inlet part (first water conservancy diversion section 12) of water conservancy diversion circle 1 form the convergent shape, increase the air current velocity to increase fan blade 2's intake flow, reduce and attach the surface layer separation, and pipe column structure (second water conservancy diversion section 13) can cooperate with vortex tooth structure 3 and restrain blade top clearance vortex and backward flow.
The cross section of the first flow guide section 12 is trapezoidal, the bottom angle theta 2 of the trapezoid of the first flow guide section 12 is in the angle range of 45 degrees to 90 degrees, the loss of the airflow is reduced by utilizing the angle formed by the bottom angle theta 2, and the preferable angle range of the bottom angle theta 2 is 80 degrees to 82 degrees.
The end part of the first diversion section 12, which is far away from the second diversion section 13, is provided with a first rounding structure 15, the radius range of the first rounding structure 15 is 0.26-0.3 times of the diameter of the fan blade 2, and the air intake of the fan is increased.
The flow guide ring 1 further comprises a third flow guide section 14, the third flow guide section 14 is arranged at one end, far away from the first flow guide section 12, of the second flow guide section 13, the third flow guide section 14 is in a horn shape and is far away from the second flow guide section 13, the diameter of the third flow guide section 14 is gradually increased, namely, an air outlet portion (the third flow guide section 14) of the flow guide ring 1 is in a gradually expanding shape, air flow is decelerated at the position, dynamic pressure is gradually converted into static pressure, and high-speed flow loss of the air flow is reduced.
The cross section of the third flow guide section 14 is a trapezoid, the bottom angle θ 1 of the trapezoid of the third flow guide section 14 is in the angle range of 45 degrees to 90 degrees, so that the outlet noise of the fan is reduced, and preferably, the bottom angle θ 1 is in the angle range of 86 degrees to 88 degrees.
The end part of the third flow guide section 14 far away from the second flow guide section 13 is provided with a second rounding structure 16, the radius of the second rounding structure 16 is 0.08-0.15 times of the diameter of the fan blade 2, and the outlet noise of the fan is reduced.
An air conditioning system comprises the air supply 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 (16)
1. An air supply assembly, characterized by: the method comprises the following steps:
a flow guiding ring (1);
the fan blade (2) is arranged in the flow guide ring (1), and a blade top gap is formed between the blade top edge of the fan blade (2) and the inner surface of the flow guide ring (1);
and the turbulence tooth structures (3) are arranged on the inner surface of the guide ring (1) corresponding to the blade top gaps, and tooth tops of the turbulence tooth structures (3) point to the fan blades (2).
2. An air supply assembly as recited in claim 1, wherein: each spoiler tooth structure (3) includes a plurality of bar teeth (4), and all bar teeth (4) are followed the axis direction of fan blade (2) sets up side by side, and all the tooth top of bar teeth (4) all points to fan blade (2).
3. An air supply assembly as recited in claim 2, wherein: along the axis direction of the fan blade (2), the tooth heights of all the strip-shaped teeth (4) in the same spoiler tooth structure (3) are gradually reduced.
4. An air supply assembly as recited in claim 3, wherein: vortex tooth structure (3) include a plurality of first vortex tooth subassembly (31) and a plurality of second vortex tooth subassembly (32), all first vortex tooth subassembly (31) and all second vortex tooth subassembly (32) interval sets up, just the tooth height change direction of first vortex tooth subassembly (31) with the tooth height change direction of second vortex tooth subassembly (32) is opposite.
5. An air supply assembly as recited in claim 4, wherein: the tooth height of the strip-shaped teeth (4) in the first turbulence tooth assembly (31) is gradually reduced along the first direction of the axis of the fan blade (2), and the tooth height of the strip-shaped teeth (4) in the second turbulence tooth assembly (32) is gradually reduced along the second direction of the axis of the fan blade (2).
6. An air supply assembly as recited in claim 4, wherein: with the leaf top clearance is corresponding be formed with banded installation region (11) on the internal surface of water conservancy diversion circle (1), the width of banded installation region (11) is H, the width of vortex tooth structure (3) is H, and H < H < 2H, all vortex tooth structure (3) all set up in banded installation region (11).
7. An air supply assembly as recited in claim 6, wherein: banded installation zone (11) have relative first border and second border, the border of first vortex tooth subassembly (31) with first border coincidence, the border of second vortex tooth subassembly (32) with the second border coincidence.
8. An air supply assembly as recited in claim 6, wherein: the turbulence tooth structure (3) is arranged on the flow guide ring (1) corresponding to the vortex core of the fan blade (2).
9. An air supply assembly as recited in claim 8, wherein: the width of the band-shaped mounting region (11) is greater than or equal to the corresponding dimension of the vortex core.
10. An air supply assembly as recited in claim 1, wherein: along the air current direction, water conservancy diversion circle (1) is including first water conservancy diversion section (12) and second water conservancy diversion section (13) that set gradually, first water conservancy diversion section (12) are loudspeaker column structure, and along being close to the direction of second water conservancy diversion section (13), the diameter of first water conservancy diversion section (12) reduces gradually, second water conservancy diversion section (13) are pipe column structure, just the diameter of pipe column structure with the minimum diameter of loudspeaker column structure equals, vortex tooth structure (3) set up in on second water conservancy diversion section (13).
11. An air supply assembly as recited in claim 10, wherein: the section of the first flow guide section (12) is trapezoidal, and the bottom angle range of the trapezoid of the first flow guide section (12) is 45-90 degrees.
12. An air supply assembly as recited in claim 10, wherein: the end part, far away from the second guide section (13), of the first guide section (12) is provided with a first rounding structure (15), and the radius range of the first rounding structure (15) is 0.26-0.3 times of the diameter of the fan blade (2).
13. An air supply assembly as recited in claim 10, wherein: the water conservancy diversion circle (1) still includes third water conservancy diversion section (14), third water conservancy diversion section (14) set up in second water conservancy diversion section (13) is kept away from the one end of first water conservancy diversion section (12), just third water conservancy diversion section (14) are loudspeaker form, and along keeping away from the direction of second water conservancy diversion section (13), the diameter crescent of third water conservancy diversion section (14).
14. An air supply assembly as recited in claim 13, wherein: the section of the third flow guide section (14) is trapezoidal, and the angle range of the bottom angle of the trapezoid of the third flow guide section (14) is 45-90 degrees.
15. An air supply assembly as recited in claim 13, wherein: the end part, far away from the second flow guide section (13), of the third flow guide section (14) is provided with a second rounding structure (16), and the radius of the second rounding structure (16) is 0.08-0.15 times of the diameter of the fan blade (2).
16. An air conditioning system characterized by: comprising an air supply assembly as claimed in any of claims 1 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021480212.1U CN212690456U (en) | 2020-07-23 | 2020-07-23 | Air supply assembly and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021480212.1U CN212690456U (en) | 2020-07-23 | 2020-07-23 | Air supply assembly and air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212690456U true CN212690456U (en) | 2021-03-12 |
Family
ID=74899210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021480212.1U Withdrawn - After Issue CN212690456U (en) | 2020-07-23 | 2020-07-23 | Air supply assembly and air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212690456U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878457A (en) * | 2020-07-23 | 2020-11-03 | 珠海格力电器股份有限公司 | Air supply assembly with noise reduction function and air conditioning system |
-
2020
- 2020-07-23 CN CN202021480212.1U patent/CN212690456U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878457A (en) * | 2020-07-23 | 2020-11-03 | 珠海格力电器股份有限公司 | Air supply assembly with noise reduction function and air conditioning system |
| CN111878457B (en) * | 2020-07-23 | 2023-09-08 | 珠海格力电器股份有限公司 | Air supply assembly with noise reduction function and air conditioning system |
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Granted publication date: 20210312 Effective date of abandoning: 20230908 |
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Granted publication date: 20210312 Effective date of abandoning: 20230908 |