CN217582588U - Mixed flow fan and air duct machine - Google Patents
Mixed flow fan and air duct machine Download PDFInfo
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- CN217582588U CN217582588U CN202221287645.4U CN202221287645U CN217582588U CN 217582588 U CN217582588 U CN 217582588U CN 202221287645 U CN202221287645 U CN 202221287645U CN 217582588 U CN217582588 U CN 217582588U
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Abstract
The utility model provides a mixed flow fan and tuber pipe machine. The mixed flow fan comprises a volute; an impeller disposed within the volute; a vane structure disposed within the volute and located on one side of the impeller. The utility model provides a mixed flow fan and tuber pipe machine, swing through making the stator, can increase the degree of agreeing with of the flow direction of stator and air current, thereby be of value to the increase of the homogeneity of admitting air of impeller, ensure that the impeller all can reach the optimal amount of wind value under a plurality of operating rotation speeds, perhaps be of value to the increase of the exhaust homogeneity of mixed flow fan, ensure that the mixed flow fan all can reach optimal amount of wind value and optimal air current drive performance under a plurality of operating rotation speeds, when tuber pipe machine's business turn over wind direction changes, mixed flow fan can wholly rotate as required and can not produce with tuber pipe machine and interfere, thereby guarantee tuber pipe machine's air-out effect.
Description
Technical Field
The utility model relates to an air treatment facility technical field, especially a mixed flow fan 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, the inclination angle of the guide vane structure of the mixed flow fan in the prior art is fixed, and the guide vane structure cannot enable the mixed flow fan to reach the optimal state under the condition of different air volumes, so that the problem of poor air outlet effect of the mixed flow fan is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that the air outlet effect of the mixed flow fan is poor in the prior art, the mixed flow fan and the air pipe machine are provided, wherein the air inlet and the air outlet of the mixed flow fan are adjusted by utilizing a guide vane capable of swinging to enable the air outlet of the mixed flow fan to meet different air volume requirements of the air pipe machine.
A mixed flow fan, comprising:
a volute;
an impeller disposed within the volute;
the stator structure, the stator structure set up in the spiral case and be located one side of impeller, the stator structure includes a plurality of stator, at least one be provided with the oscillating axle on the stator, the axis of oscillating axle with the axis of impeller has the contained angle, and has the stator of oscillating axle can with the axis of oscillating axle swings as the axis.
The angle of the included angle is 90 degrees.
The range of the swing angle alpha of the guide vane is 0 DEG to 10 deg.
The guide vane structure is provided with silencing teeth.
The guide vane structure is provided with a bulge and/or a pit.
The mixed-flow fan further comprises an inner shell, an air outlet is formed in the volute, the guide vane structure comprises a rear guide vane structure, 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 stator, the first border of stator with the external surface fixed set up of inner shell, the second border of stator with the internal surface fixed set up of spiral case.
The divergence angle b of the rear guide vane structure ranges from 10 ° to 40 °.
The outer surface of the volute is a curved surface.
The volute is of a ball table structure, and the maximum diameter of the volute is equal to the diameter of the ball table structure.
The volute is positioned on two end faces of the table structure and is respectively provided with an air inlet and an air outlet.
An air duct machine comprises the mixed flow fan.
The utility model provides a mixed flow fan and tuber pipe machine, swing through making the stator, can increase the degree of agreeing with of the flow direction of stator and air current, thereby be of value to the increase of the homogeneity of admitting air of impeller, ensure that the impeller all can reach the optimal amount of wind value under a plurality of operating rotation speeds, perhaps be of value to the increase of the exhaust homogeneity of mixed flow fan, ensure that the mixed flow fan all can reach optimal amount of wind value and optimal air current drive performance under a plurality of operating rotation speeds, when the business turn over wind direction of tuber pipe machine changes, mixed flow fan can wholly rotate as required and can not produce with the tuber pipe machine and interfere, thereby guarantee the air-out effect of tuber pipe machine.
Drawings
Fig. 1 is a schematic structural view of a mixed flow fan according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a guide vane structure and a swing shaft according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of a mixed flow fan provided by an embodiment of the present invention;
in the figure:
1. a volute; 2. an impeller; 31. a leader lobe structure; 32. a rear guide vane structure; 33. a guide vane; 34. a swing shaft; 4. an inner shell.
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 rotates at a high speed, the impeller sucks in airflow and discharges the airflow out of the impeller at a high dynamic pressure. In order to improve the efficiency of the impeller, a guide vane structure is arranged on the air inlet side and/or the air outlet side of the impeller to guide the airflow, and the guide vane structure is used for adjusting the proportion of the tangential speed and the horizontal speed of the airflow so as to improve the capacity of the fan. All adopt the mode of adjusting the structure of 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, the stator structure all produces very big influence to the admitting air of impeller and to the exhaust of impeller, and under the condition that the impeller is in different rotational speeds, the requirement of impeller can not be satisfied to the stator of single angle, therefore the inclination of suitable stator is very important to the promotion of mixed flow fan system performance.
The mixed flow fan shown in fig. 1 to 3 includes: a volute 1; an impeller 2, wherein the impeller 2 is arranged in the volute 1; the stator structure, the stator structure set up in the spiral case 1 and be located one side of impeller 2, the stator structure includes a plurality of stator 33, at least one be provided with oscillating shaft 34 on the stator 33, oscillating shaft 34's axis with the axis of impeller 2 has the contained angle, and has oscillating shaft 34's stator 33 can with oscillating shaft 34's axis swings as the axis. Through the swing that makes stator 33, can increase the degree of agreeing with of the flow direction of stator 33 and air current, set up when the stator structure (preceding stator structure 31) in impeller 2's the side of admitting air, can effectual increase impeller 2's the homogeneity of admitting air, guarantee that impeller 2 all can reach the optimum amount of wind value under a plurality of operating speed, set up when impeller 2's the side of exhausting (back stator structure 32) as the stator structure, can effectual increase mixed flow fan's exhaust uniformity, guarantee that mixed flow fan all can reach optimum amount of wind value and optimum air current drive performance under a plurality of operating speed. Wherein the axis of the impeller 2 is the rotation axis of the impeller 2 during operation.
The angle of the included angle is 90 degrees. So that no structural interference is generated with the volute 1 in the swinging process of the guide vane 33, and the structure reliability of the guide vane 33 and the volute 11 is ensured.
The range of the swing angle α of the guide vane 33 is 0 ° to 10 °. Preferably 0 ° to 5 °.
The guide vane structure is provided with silencing teeth. The noise reduction effect is achieved by utilizing the noise reduction teeth to carry out noise reduction.
The guide vane structure is provided with protrusions and/or pits. The projections and/or dimples are used to reduce noise in the air stream as it passes.
The mixed flow fan still includes inner shell 4, be provided with the air outlet on the spiral case 1, the stator structure includes back stator structure, inner shell 4 set up in impeller 2 with between the air outlet, back stator structure set up in the surface of inner shell 4 with between the internal surface of spiral case 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 by the guide vane 33 when passing through the rear guide vane structure.
The rear guide vane structure comprises a plurality of guide vanes 33, the first edges of the guide vanes 33 are fixedly arranged on the outer surface of the inner shell 4, and the second edges of the guide vanes 33 are fixedly arranged on the inner surface of the volute 1. The guide vane 33 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 utilizing the rear guide vane structure, so that the effect of reinforcing ribs is realized.
The divergence angle b of the rear guide vane structure 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 and a central line of the rear guide vane structure along the flowing direction of gas, wherein the front edge is an air inlet end of the rear guide vane structure, and the tail edge is an air outlet end of the rear guide vane structure. That is, along the flowing direction of the gas, the section size of the rear guide vane structure is gradually increased, and when the rear guide vane structure is applied to the mixed flow fan, the flow section of the airflow entering the rear guide vane structure is smaller than that of the airflow flowing out of the rear guide vane structure.
The outer surface of the volute 1 is a curved surface. I.e. the cross-section of the outer surface of the volute 1 is a curved segment.
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 and an air outlet at two end faces of the table structure.
A tuber pipe machine, includes above-mentioned mixed flow fan.
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 concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (12)
1. The utility model provides a mixed flow fan which characterized in that: the method comprises the following steps:
a volute (1);
an impeller (2), the impeller (2) being disposed within the volute (1);
the stator structure, the stator structure set up in spiral case (1) and be located one side of impeller (2), the stator structure includes a plurality of stator (33), at least one be provided with oscillating axle (34) on stator (33), the axis of oscillating axle (34) with the axis of impeller (2) has the contained angle, and has stator (33) of oscillating axle (34) can with the axis of oscillating axle (34) swings as the axis.
2. The mixed flow fan of claim 1, wherein: the included angle is 90 degrees.
3. The mixed flow fan of claim 1, wherein: the range of the pivot angle alpha of the guide vane (33) is 0 DEG to 10 deg.
4. The mixed flow fan of claim 1, wherein: the guide vane structure is provided with silencing teeth.
5. The mixed flow fan of claim 1, wherein: the guide vane structure is provided with protrusions and/or pits.
6. The mixed flow fan of claim 1, wherein: the mixed flow fan further comprises an inner shell (4), an air outlet is formed in the volute (1), the guide vane structure comprises a rear guide vane structure, the inner shell (4) is arranged between the impeller (2) and the air outlet, and the rear guide vane structure is arranged between the outer surface of the inner shell (4) and the inner surface of the volute (1).
7. The mixed flow fan of claim 6, wherein: the back stator structure includes a plurality of stator (33), the first border of stator (33) with the external surface fixed set up of inner shell (4), the second border of stator (33) with the internal surface fixed set up of spiral case (1).
8. The mixed flow fan of claim 6, wherein: the divergence angle b of the rear guide vane structure ranges from 10 ° to 40 °.
9. The mixed flow fan of claim 1, wherein: the outer surface of the volute (1) is a curved surface.
10. The mixed flow fan of claim 1, wherein: 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.
11. The mixed flow fan of claim 10, wherein: the volute (1) is positioned on two end faces of the ball table structure and is respectively provided with an air inlet and an air outlet.
12. A ducted air conditioner characterized in that: comprising the mixed flow fan of any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221287645.4U CN217582588U (en) | 2022-05-27 | 2022-05-27 | Mixed flow fan and air duct machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221287645.4U CN217582588U (en) | 2022-05-27 | 2022-05-27 | Mixed flow fan and air duct machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217582588U true CN217582588U (en) | 2022-10-14 |
Family
ID=83553976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221287645.4U Active CN217582588U (en) | 2022-05-27 | 2022-05-27 | Mixed flow fan and air duct machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217582588U (en) |
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2022
- 2022-05-27 CN CN202221287645.4U patent/CN217582588U/en active Active
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