CN217582587U - Mixed flow fan assembly and air duct machine - Google Patents
Mixed flow fan assembly and air duct machine Download PDFInfo
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- CN217582587U CN217582587U CN202221287501.9U CN202221287501U CN217582587U CN 217582587 U CN217582587 U CN 217582587U CN 202221287501 U CN202221287501 U CN 202221287501U CN 217582587 U CN217582587 U CN 217582587U
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- flow fan
- mixed flow
- guide vane
- fan assembly
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Abstract
The utility model provides a mixed flow fan subassembly and tuber pipe machine. The mixed flow fan assembly comprises a volute, and an air inlet is formed in the volute; the stator structure, the stator structure set up in the outside of spiral case, just the air-out of stator structure is directional the air intake. The utility model provides a mixed flow fan subassembly and tuber pipe machine sets up stator structure in the outside of spiral case, carries out rectification and/or pressure boost to admitting air of spiral case, and the air current enters into the impeller through the mass flow circle behind stator structure, and the efficiency of effectual promotion impeller, but stator structure's stator simultaneously can swing, increases stator structure and to the rectification effect of air current, makes the air current further agree with the demand of impeller, guarantees mixed flow fan's air-out effect.
Description
Technical Field
The utility model relates to an air treatment equipment technical field, especially a mixed flow fan subassembly and tuber pipe machine.
Background
The air duct machine is one of air conditioners, in order to improve the comfortableness, some air duct machines adopt an upper cold air outlet mode and a lower hot air outlet mode, waterfall type refrigeration and carpet type warm air can be realized, in order to realize the air outlet mode, the air outlet of the air duct machine is required to be reversible, in the existing air outlet reversible air duct machine, a cross-flow fan and a centrifugal fan are generally adopted, but the fan is not reversible due to the problem of the setting mode of fan blades, the air direction after the reversal is not reversible, therefore, at least two fans can be arranged, one fan is responsible for forward air outlet, and the other fan is responsible for reverse air outlet, so that the structure of the air duct machine is larger, and the cost is higher.
In order to reduce the cost, the fan needs to be reduced, the mixed flow fan is a fan between the axial flow fan and the centrifugal fan, an impeller of the mixed flow fan enables air to do centrifugal motion and axial motion, and the air flow motion in the volute mixes two motion modes of axial flow and centrifugal motion, so that the mixed flow fan is called mixed flow. Moreover, the mixed flow fan not only can reduce the volume, but also can ensure the flow direction and the wind pressure of airflow.
However, when the mixed-flow fan in the prior art is applied, the air inlet direction of the mixed-flow fan cannot meet the preset requirement, so that the problem of poor energy efficiency of the mixed-flow fan is caused.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an in provide a mixed flow fan subassembly and tuber pipe machine to solve the problem that mixed flow fan efficiency is low among the prior art.
A mixed flow fan assembly comprising:
the volute is provided with an air inlet;
the guide vane structure, the guide vane structure set up in the outside of spiral case, just the air-out of guide vane structure is directional the air intake.
The guide vane structure includes a plurality of guide vanes, and all the guide vanes are annular distribution.
At least one guide vane is provided with a swinging shaft, and the guide vane with the swinging shaft can swing by taking the axis of the swinging shaft as an axis.
The oscillating shaft and the axis of the impeller form an included angle, and the included angle is 90 degrees.
The swing angle α of the guide vane ranges from 0 ° to 10 °.
One or more of silencing teeth, bulges or pits are arranged on the guide vane structure.
The guide vane structure with have the interval between the air intake.
The cross-sectional area of the guide vane structure is smaller than or equal to the area of the air inlet.
The mixed-flow fan assembly further comprises a rear guide vane structure and an impeller, the impeller is arranged in the volute, an air outlet is formed in the volute, and the rear guide vane structure is arranged between the impeller and the air outlet.
The mixed flow fan assembly further comprises an inner shell, the inner shell is arranged between the impeller and the air outlet, and the rear guide vane structure is arranged between the outer surface of the inner shell and the inner surface of the volute.
The back stator structure includes a plurality of back stator, the first border of back stator with the outer fixed setting of surface of inner shell, the second border of back stator with the internal surface fixed setting of spiral case.
The divergence angle b of the rear guide vane structure ranges from 10 ° to 40 °.
A tuber pipe machine includes above-mentioned mixed flow fan subassembly.
The utility model provides a mixed flow fan subassembly and tuber pipe machine sets up stator structure in the outside of spiral case, carries out rectification and/or pressure boost to admitting air of spiral case, and the air current enters into the impeller through the mass flow circle behind stator structure, and the efficiency of effectual promotion impeller, but stator structure's stator simultaneously can swing, increases stator structure and to the rectification effect of air current, makes the air current further agree with the demand of impeller, guarantees mixed flow fan's air-out effect.
Drawings
Fig. 1 is a schematic structural view of a mixed flow fan assembly according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a guide vane structure provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a rear guide vane structure provided in an embodiment of the present invention;
fig. 4 is a cross-sectional view of a volute, an inner shell, and a rear guide vane structure according to an embodiment of the present invention;
in the figure:
1. a volute; 11. an air inlet; 2. an impeller; 3. a guide vane structure; 31. a guide vane; 32. a swing shaft; 4. an inner shell; 5. a rear guide vane structure; 51. and a rear guide vane.
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 mixed flow fan in the prior art, when the impeller 2 rotates at a high speed, a negative pressure area is formed at the inlet of the impeller 2 to generate suction, so that gas enters from the current collector. In a complex housing environment, adverse air intake conditions tend to develop. All adopt the structure of adjusting the impeller to improve when improving the efficiency of fan among the prior art, however, through the research of applicant to the air current principle of flowing to and discover after carrying out the analysis through simulation experiment data, adjust the air-out effect of mixed flow fan and have effectual improvement to the admitting air of impeller, consequently on mixed flow fan's overall structure, it is very important to the promotion of mixed flow fan system performance to carry out the rectification to the inlet air of impeller.
To this end, the mixed flow fan assembly as shown in fig. 1 to 4 includes: the volute 1 is provided with an air inlet 11; stator structure 3, stator structure 3 set up in the outside of spiral case 1, just stator structure 3's air-out is directional air intake 11. The guide vane structure 3 is arranged outside the volute 1, the air inlet of the volute 1 is rectified and/or pressurized, and the airflow enters the impeller through the flow collecting ring after passing through the guide vane structure 3, so that the efficiency of the impeller is effectively improved.
The guide vane structure 3 comprises a plurality of guide vanes 31, and all of the guide vanes 31 are annularly distributed. The annular axis is the axis of the air inlet 11, and the guide vanes 31 distributed at different positions of the air inlet 11, that is, most regions of the air inlet 11 can be within the rectifying range of the guide vane structure 3, so that the rectifying effect of the guide vane structure 3 on the air flow is ensured.
At least one of the guide vanes 31 is provided with a swing shaft 32, and the guide vane 31 having the swing shaft 32 can swing about the axis of the swing shaft 32. The airflow is rotated in advance, the airflow has a certain flow angle, so that the angle value between the direction of the airflow and the direction of the airflow entering the impeller 2 is reduced, and finally the purpose of reducing the resistance of the airflow entering the volute 1 is achieved. Preferably, the larger the rotation speed of the impeller 2, the larger the angle at which the airflow enters the impeller 2, and therefore the larger the angle of the inclination angle α of the guide vane 31 is required, whereas the smaller the rotation speed of the impeller 2, the smaller the inclination angle α of the guide vane 31 is.
The oscillating shaft 32 forms an angle with the axis of the impeller 2, the angle being 90 °. That is, the axis of the oscillating shaft 32 is perpendicular to the axis of the impeller 2, so that the oscillating range of the guide vane 31 is increased as much as possible, and the rectifying range of the guide vane structure 3 is increased. Wherein the axis of the impeller 2 refers to the axis of rotation of the impeller 2 during operation.
The swing angle α of the guide vane 31 ranges from 0 ° to 10 °. Preferably 0 ° to 5 °.
One or more of silencing teeth, bulges or pits are arranged on the guide vane structure 3. The noise reduction effect is achieved by utilizing the silencing teeth, the bulges or the pits to carry out silencing.
The guide vane structure 3 and the air inlet 11 have a distance therebetween. When the air-out orientation of mixed flow fan changed, the interval can be for spiral case 1 formation dodge the space in the in-process of carrying out the rotation, avoids stator structure 3 and spiral case 1 to produce the interference.
The cross-sectional area of the guide vane structure 3 is smaller than or equal to the area of the air inlet 11. The rectification function of the guide vane structure 3 on the air flow entering from the air inlet is ensured.
Mixed flow fan subassembly still includes back stator structure 5 and impeller 2, impeller 2 set up in the spiral case 1, be provided with the air outlet on the spiral case 1, back stator structure 5 set up in impeller 2 with between the air outlet. Utilize back stator structure 5 to carry out further rectification and pressure boost to the air current of impeller 2 exhaust, effectively promote mixed flow fan's air-out effect under stator structure 3 and back stator structure 5's combined action.
The mixed flow fan assembly further comprises an inner shell 4, the inner shell 4 is arranged between the impeller 2 and the air outlet, and the rear guide vane structure 5 is arranged between the outer surface of the inner shell 4 and the inner surface of the volute 1. The inner shell 4 is used for further limiting the air duct in the volute 1, so that the air flow can be better guided when passing through the rear guide vane structure 5.
The back stator structure 5 includes a plurality of back stator 51, the first border of back stator 51 with the outer fixed surface setting of inner shell 4, the second border of back stator 51 with the inner fixed surface setting of spiral case 1. At this time, the rear guide vane 51 is fixedly arranged between the volute 1 and the inner shell 4, and the fixing strength between the volute 1 and the inner shell 4 is increased by using the rear guide vane structure 5, so that the effect of reinforcing ribs is realized.
The divergence angle b of the rear guide vane structure 5 ranges from 10 ° to 40 °. The divergence angle is an included angle formed between a connecting line of a front edge and a tail edge of the rear guide vane structure 5 and a central line of the rear guide vane structure 5 along the flowing direction of gas, wherein the front edge is an air inlet end of the rear guide vane structure 5, and the tail edge is an air outlet end of the rear guide vane structure 5. That is, along the flowing direction of the air, the size of the cross section of the rear guide vane structure 5 is gradually increased, and when the mixed flow fan is applied, the flow cross section of the air flow entering the rear guide vane structure 5 is smaller than that of the air flow flowing out of the rear guide vane structure 5.
The outer surface of the volute 1 is a curved surface. I.e. the cross-section of the volute 1 is a curved section.
The volute 1 is of a ball table structure, and the maximum diameter of the volute 1 is equal to the diameter of the ball table structure. That is, spiral case 1 can carry out the free rotation in the fixed spherical space of diameter with the centre of sphere of ball platform structure as the center, when being applied to tuber pipe machine and tuber pipe machine demand when going out wind from top to bottom, can provide the fixed spherical space of diameter for the mixed flow fan that this application provided in the tuber pipe machine, realizes the switching of tuber pipe machine business turn over wind direction through the rotation of mixed flow fan.
The volute 1 is provided with an air inlet 11 and an air outlet at two end surfaces of the table structure.
A tuber pipe machine includes above-mentioned mixed flow fan subassembly.
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 (13)
1. A mixed flow fan assembly which characterized in that: the method comprises the following steps:
the volute comprises a volute (1), wherein an air inlet (11) is formed in the volute (1);
stator structure (3), stator structure (3) set up in the outside of spiral case (1), just the air-out of stator structure (3) is directional air intake (11).
2. The mixed flow fan assembly of claim 1, wherein: the guide vane structure (3) comprises a plurality of guide vanes (31), and all the guide vanes (31) are annularly distributed.
3. The mixed flow fan assembly of claim 2, wherein: at least one guide vane (31) is provided with a swinging shaft (32), and the guide vane (31) with the swinging shaft can swing by taking the axis of the swinging shaft as an axis.
4. The mixed flow fan assembly of claim 3, wherein: the oscillating shaft and the axis of the impeller (2) form an included angle, and the included angle is 90 degrees.
5. The mixed flow fan assembly of claim 3, wherein: the range of the swing angle alpha of the guide vane (31) is 0 DEG to 10 deg.
6. The mixed flow fan assembly of claim 1, wherein: one or more of silencing teeth, bulges or pits are arranged on the guide vane structure (3).
7. The mixed flow fan assembly of claim 1, wherein: the guide vane structure (3) and the air inlet (11) are spaced.
8. The mixed flow fan assembly of claim 1, wherein: the cross-sectional area of the guide vane structure (3) is smaller than or equal to the area of the air inlet.
9. The mixed flow fan assembly of claim 1, wherein: the mixed flow fan assembly further comprises a rear guide vane structure (5) and an impeller (2), the impeller (2) is arranged in the volute (1), an air outlet is formed in the volute (1), and the rear guide vane structure (5) is arranged between the impeller (2) and the air outlet.
10. The mixed flow fan assembly of claim 9, wherein: the mixed flow fan assembly further comprises an inner shell (4), the inner shell (4) is arranged between the impeller (2) and the air outlet, and the rear guide vane structure (5) is arranged between the outer surface of the inner shell (4) and the inner surface of the volute (1).
11. The mixed flow fan assembly of claim 10, wherein: the rear guide vane structure (5) comprises a plurality of rear guide vanes (51), the first edges of the rear guide vanes (51) are fixedly arranged on the outer surface of the inner shell (4), and the second edges of the rear guide vanes (51) are fixedly arranged on the inner surface of the volute (1).
12. The mixed flow fan assembly of claim 9, wherein: the divergence angle b of the rear guide vane structure (5) ranges from 10 ° to 40 °.
13. An air duct machine is characterized in that: comprising the mixed flow fan assembly of any of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221287501.9U CN217582587U (en) | 2022-05-27 | 2022-05-27 | Mixed flow fan assembly and air duct machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221287501.9U CN217582587U (en) | 2022-05-27 | 2022-05-27 | Mixed flow fan assembly and air duct machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217582587U true CN217582587U (en) | 2022-10-14 |
Family
ID=83555271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221287501.9U Active CN217582587U (en) | 2022-05-27 | 2022-05-27 | Mixed flow fan assembly and air duct machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217582587U (en) |
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2022
- 2022-05-27 CN CN202221287501.9U patent/CN217582587U/en active Active
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